US1965840A - Centrifugal machine - Google Patents

Centrifugal machine Download PDF

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Publication number
US1965840A
US1965840A US643022A US64302232A US1965840A US 1965840 A US1965840 A US 1965840A US 643022 A US643022 A US 643022A US 64302232 A US64302232 A US 64302232A US 1965840 A US1965840 A US 1965840A
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Prior art keywords
valve
holder
rotor
rotation
pipe
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US643022A
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Leo D Jones
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Sharples Specialty Co
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Sharples Specialty Co
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B11/00—Feeding, charging, or discharging bowls
    • B04B11/08—Skimmers or scrapers for discharging ; Regulating thereof

Definitions

  • This invention relates to centrifugal machines corne into operation; that-the operating mechaand particularly to .mechanism for dislodging or nism carries the tool back and forth along the unloading fromthe rotor thereof solids collected cylindrical interior surface of the solids lin the therein as a result of separatingsolids from rotor and automatically reverses such motion of liquids centrifugally.
  • the inertia of the moving predetermined period; the dislodging tool is parts frequently carries vthe tool past the points Started and Causedv t0 operate to remove vthe 85 at which it should come to rest andleads to injury deposit from the 1 ⁇ 0t01 end itS Operation iS thereor destruction of the rotor vor the tool as afresult after Stopped and liquid mixture iS again Supof unintended and unavoidable contactof these plied t0 ⁇ the Centrifugal t0 begin another Cycle. members with each other.
  • a featureof ythis invention is that a tool isfem' 0f this invention will bevappare'nt from the 'folployed which effects dislodgment of the solids lowing .specification and accompanying drawcollected in a centrifugal rotor quickly vwithout ings, wherein: i y
  • FIG. 1 materially reducing the .speed of rotation of the Fig. 1 is a view, partlyinv section, of, a, een- 100 rotor or stopping it, and the tool is ⁇ providedwith trifugal machinev embodying the.. invention; operating mechanism whereby it is operated au
  • Fig. 2 is .a plan view of the tool operating tomatically to eifect the desired removal of solids mechanism shown in Fig. 1; l from the rotor without danger of injury to the ro- Fig. 3 is an enlargedl fragmentary view similar tor.
  • features of this invention are that to Fig. 1; y
  • Fig. 4 is a section on the line 4 4 of Fig, 2; that willy tend to carry the tool into engagement Fig. 5 ⁇ is a partial section on the line 5-5 of with the rotor; that the tool is prevented from Fig. 2; I y
  • 9 is .en eniaifgeqlse-etien on the une 9-9 4 Vof Fig. 3;
  • Fig. 10 is an enlarged section on the line 10-10 Fig; 11 is a section von the line 11--11 of Fig. 10; Fig. 12 is a section on the line 12-12 of Fig. 2; Fig. 13 is a section on the line 13--13 of Fig. 12; Fig. 14 is a section on the line 14-14 of Fig. l2; Figs. 15, 16 and 17 are perspective views of individual parts:
  • Fig. 18 is a piping diagram
  • Fig. 19 is a combined piping and wiring diagram
  • Figs. 20, 21, 22, 23, 24 and 25 are diagrammatic views of successive steps in the -cycle of operation of the machine;
  • Fig. 26 is a combined piping and wiring diagram of a modified form of the invention.
  • Fig. 27 is a diagrammatic section of a control member.
  • a centrifugal rotor 10 comprising a wall 11, which may be of cylindrical or other suitable form and which may be perforated or lmperfo-A rate, an end wall 12 provided with an opening 13 and an end wall 14, is mounted upon shaft 15 carried in bearings 16 and 17 which are supported by a housing 18 which encloses the rotor.
  • the shaft, and the attached rotor may be rotated in any suitable manner as by a pulley 19.
  • liquid separated centrifugally from the solids is collected in the housing 18 and withdrawn therefrom through outlet 20.
  • the mixture which is to be separated is supplied in any suitable manner to the rotor 10 as by means of pipe 2l having discharge holes 22. After a cake of solids of suitable radial depth is formed in the rotor by straining or by sedimentation or by both such operations, and aftersupplyv solids.
  • the means for supporting and moving the dislodging or cutting tool 25 may be mounted in any manner, in proper relation to rotor 11, as by bolting the flange or base plate 26 thereof in position over the opening 2'? in the housing 18.
  • Tool 25 is attached to and supported by the tool-operating bar or member 28 and this member is mounted for reciprocation and rotation in bearings 29 and 30 carried by a frame 31 which is connected to the flange or base plate 26.
  • Bearing 30 is provided at the end thereof adjacent the rotor with a stuiling box that prevents entrance into the bearing of foreign materials such as liquids and solids introduced into rotor 11, said stuffing box comprising packing 311 that is compressed by compression member 32 upon tightening of bolts 33.
  • frame 31 is draulic spaced from bar 28 to provide a space 34 around bar 28. It is also provided with openings 34a communicating with this space, through which foreign material entering bearing 30 is discharged, in order that it may not enter bearing 29. In the construction shown, frame 31 is provided with a third bearing 35 for bar 28.
  • the cutting edge of tool 25 is moved from and toward the inner surface of rotor 11 by rotation of bar 28.
  • tool 25 is maintained, by suitable rotation of bar 28, in a position in which it will not engage the surface of the cake.
  • bar 28 is rotated, to carry the cutting edge of the tool toward the inner surface of rotor 11.
  • bar 28 is provided with a keyway 37 in which a key 38 is fitted, this key being connected to worm-wheel 39 housed in frame 31 between bearings 29 and 35.
  • Shaft 41 is mounted in frame 31 for rotation and carries a worm 40 engaging worm-wheel 39.
  • Shaft 41- is also provided with gear 42 which is engaged by gear 43 mounted on shaft 44 to which is secured gear 45 which in turn engages rack 46.
  • Rack 46 slides within auxiliary housing 310 and rod 50 is secured to rack 46.
  • the rod 50 passes through one end of auxiliary housing 310 and carries on its end a. piston 51 that is located within hydraulic cylinder 52.
  • the cylinder 52 is supported by the plate 78,
  • heads 52a having ports through which liquid is supplied to and discharged from the ends of the cylinder.
  • Liquid yer pressure is supplied to the cy1inder52by means later to be described for causing reciprocation of the piston,y i 51 'to ⁇ effect rotation of the bar28 through the l gears previously-described.;
  • t eans isprovided.
  • means comprises hydraulic cylinders 59 and 60 within which are located-"pistons v61 provided with .piston rods 62 f'vwhich extend..
  • Tool-operating bar 428 is formed: with a-por.-
  • tion 69 that is of reduced diameter and "a bushing '10 fits thereon andI rests againstV the' v resulting shoulder and is'prevented'vfromf rotatingn bar 2s by pin '11.
  • Yoke .'12 is1pr ovided with anischening within which bushing 'loro fortuneiand nut '73 acts tol hold yoke72 in jplace on bushi'ng'f'-70.v
  • a plate 74 lies between nut'73 ⁇ andjyokef72and has a tongue extending into.
  • Plate 76 which is triangular in the construction shown is held in fixedA position with respect to frame 31 by being bolted to the three rods 77 that are threaded vinto'irame and their inner ends engage the end of castingr31 to limit the movement of bar 28 into the rotor (to the right in Fig. 4). These bolts are threaded into yoke 72 in order that their position thereon may be adjusted, and are held in adjusted position with respect to bar 28 by lock nuts 80.
  • Stop bolts 81 are carried by yoke 72 and their outer ends engage plate .76 to limit the outward byadmitting liquid under pressure alternatelyr to opposite ends of cylinders 59 and 60, ltool 25 will be moved back and forth across the cake in rotor 11and thatthe engagement of lstops 79 v,with casting 31 will adiustably limitthe extent of such movement in onevdirection whilel engagementofstops 81 with plate 76 will adjustably limit. that'movement in the other direction, .'and
  • bar 28 may berotated to adjust the dis- 'v tance 'of the cutting'l edge .of the tool from the inner surface of the rotor without. imparting rotation to any partv of..the' :hydraulic toolrecip' ⁇ rocating mechanism.
  • Wormwheel 39, .which rotates bar 28,l is "soj locatedintermediate the ends of bar 28 th'at'keywy37'fneyer passes within or through packing. 3112 or'into ia position in which material treated the rotorvmight lodge ing to the particldrstep in the cycle. And, such mechanism effects acompleteand rapid change, ⁇ the supply to any end of the cylinders being. suddenly and completely discontinued and mo- ⁇ tion promptly halted.
  • a supply of liquid,prefer ably oil, maintained in tank 83, and pump 84 driven Vby motor 85 delivers the liquid under pressure' into supply pipe 86 which delivers the liquidv under pressure to' four-way-valve 88.
  • valve head 92d which is maintained on its seat by spring 92h.
  • the valve head 92a is provided with a stem 92c which projects beyondthe casing and is provided with an adjustable thimble 92d.y
  • the valve is supported by ,the plate -76 and theV thimble j 92d l is, arrangedsito, beengaged bythe yoke 72.
  • A" pipe 93 leadsfrom the valve :92 to a valve 94 having three outlets from which lead. pipes 93a. 93h and 93o.
  • the valve 94 is supported-by ythe plate 76 and 'comprises a casing having a central cylindricaluchamber 94a, in
  • a Aconduit 94e connects the ends of thev oyl'nders with the Vdischarge port 94e connected with piper93a.
  • the -pipe 93 communicates with theinlet port 94jr which in turn communicates with the central portion of the cylinder 94a.
  • the outlet ports 94g and 94h communicate with pipes 93h and 93e and also communi-4 cate with the chamber 94a.
  • the piston 94h is recessed centrally 'so that in one position it pro vides communication between the inlet port and one outlet port and in another position provides communication between the inlet port and the other outlet port.
  • a rod 53 is connected at one end to the piston 94h and at the other end to the armature of A second rod 54 is connected at the other end to this piston and extends parallel to the bar 28 and has its other end supported by frame 31.
  • a collar 55 isadjustably mounted on the rod 54 and is adapted to ⁇ be engaged by a lug 119a later to be described and carried by auxiliary casing 310.
  • the valve 58 comprises ar i 1 ⁇ lcasing having inlet and outlet chambers connectvjedfby aport formedv with a seat fora valve-headA '58a which is maintained on .its seat by spring "58h, 'I'he valve head 58ak is provided with a stem 258e which projects beyond the casing.
  • valve 93e leads from the valve 58 to the discharge pipek ablel-member95 of valve 88 is in the position shown in Fig. 5,.liquid under pressure will pass from pipev 86 through passage 96 into pipes 89 and vto the right hand ends of cylinders 59 and 60 and liquidwill escape from the leftv hand ends of those cylinders through pipes and through passage 97 ofv movable member 95 into return pipe 9,1. i Shifting of "movable member countere internal construction of valve 88 appears ⁇ v in Fig. 5. Provided valve 92 is.
  • Th automatic reversing mechanism comprises rod 96', (Fig. 4) one end of which is supported 'no 'l Automatic mechanismv 145 for sliding in a frame 77a supported by two of 15@ frame 31.
  • rocker arm 97 which is pivoted to bracket 98 carried by frame 31.
  • Contact collars 99 are threaded upon rod 96in order that their position thereon may be adjusted.
  • link 102 Pivoted to the opposite end of rocker arm 97 is link 102 that is pivotally connected to one end of valve-operating bar 103 ⁇ supported for sliding in auxiliary frame 104 that is mounted upon Movable member 95 of four-wayvalve 88 is attached to shaft 105 to which is secured arm 106 carrying roller 107.
  • Rod 103 is provided with arms 108 and 109 for cooperating with roller 107 to swing arm 106 and rotate movable member 95 of valve 88.
  • Rod 103 is provided with a projection 110 which cooperates with a projection 11l on lever 112 that is pivoted at 113 and pressed upwardly by spring 114. These parts are shown in Figs. l and 4 in the position in which they lie when tool is at rest and valve 88 is in the setting shown in Fig. 5.
  • Arm 106 is provided with an extension 116 that engages cushioning stops at the limiting positlons of arm 106. These stops may be of any 25 ⁇ suitable construction but are shown in the draw- ⁇ ings simply as lugs 117 in which are adjustably threaded the screws 118 that engage extension 116.
  • the ring 74 (Fig. 12) is provided with a'plurality of similar lugs 119 and is al'so provided with a lug 119a.
  • the lugs 119 are adapted to engage a lug 120 extending downwardly from an arm 121 which is pivotedat one end by a pin 122 to a member 123 which in turn is attached to a bar 124 by bolts 125.
  • a spring 126 contained within a housing 127 on the member 123 tends to maintain ythe i arm 121 in the position shown in Fig. 13 with the lug 120 in the path of lugs 119.
  • the bar v124 is slidably supported by frame 77a.
  • Rotation of the bar 28 is effected by movement of the rack 46 through the medium of gears 41, 42, 43 and 45, the rack 46 being actuated by the piston 51 which in turn is actuated by oil supplied to the cylinder 52, the supply 'of oil being controlled by the valve 92 which is opened by the bar 28 when returned to the position shown in Fig. 4.
  • the bar 28 is thus caused to reciprocate and prior to each stroke the bar is rotated slightly to advance the cutting edge of the tool 25 toward the rotor.
  • Continued rotation of the bar 28 brings the lug 119a. into alignment with the stop collar 55 mounted on the connecting rod 54. Engagement of the lug 1190, with the collar 55 operates the valve 94 and causes reverse rotation of the bar, when it has returned to ⁇ position shown in Fig.
  • the lug 120 is provided with a cam face 120a which is engaged by the lugs 119 upon counterclockwise rotation of the bar 28. When the lugs engage the face 120e the arm 121 swings outwardly to 4permit the lugs to pass.
  • a plunger 137 is connected to the shaft 135 and at its outer end is connected to the end of a plunger 137 around which is arranged a spring 137a for movingplungerto the right.I
  • the other end of the plunger l is engaged by an adjustable push rod 138a connected to a lever 138 pivotally supported by a bracket attached to the valve 58.
  • a bolt 139 is threaded through the lever 138 and is adapted to engage the end of stem 58e of the valve 58.
  • a lock nut 140 is provided to hold the bolt/139 in adjusted position.
  • a rod 141 is slidably mounted in the stop bolt 47 and projects into the casing 310 into position to be engaged by the end of rack 46.
  • 'Ihe rod 141 projects through an eye 142 in the lever 138 and is provided with a collar 143 threaded thereon.
  • the collar 143 is adjustable on the rod 141 and a lock nut 144 is provided for holding the rod 141 to the right causes the lever 138 to swing, thereby opening the valve 58 and rotating the mercoid switch from the position shown in Fig. 11 in which the switch is open to a position in which the switch is closed.
  • 'I'he pipe 150 is controlled by a valve 152 and the pipe 151 is controlled by a valve 153.
  • the valve 152 is provided with a quadrant 154 which meshes with a pinion 155 mounted on the shaftof a torque motor 156.
  • 'I'he valve 153 is provided with an arm 157 which is connected by suitable linkage with the armature of a solenoid 159.
  • ⁇ A spring 158 tends to hold the valve in closed position.
  • the torque motor 156 is connected with a three phase power line through a switch 160.
  • the wire 161 leads directly from the motor to one terminal 160a of the switch 160.
  • the wires 162 and 163 lead fromthe motor to contacts164 and 165 at the end of an insulated bar 166 supported by the armature 167 of a solenoid 68.
  • the contacts 164 and are adapted toengage respectively either l150 rack 46 to the left also actuates gears 45, 43, 42 and 41 to rotate the bar 28 to bring the tool 25 into cutting position.
  • Rotation of the bar 28 causes the first lug 119 to move the bar 124 thereby actuating the bell crank lever 129 to pull the rod 96 to the left and actuate valve 88 to turn the same into position in which the pipe 86 is connected to the pipe 90 and shutting off iiow to cylinder 52 to stopr rotation of bar 28.
  • the plate 78 moves out of engagement with the thimble 93e, thereby permitting valve 92 to close (Fig. 23), to prevent flow to cylinder 52.
  • the lug 101 engages the right hand collar 99 to move the rod 96' to the right, thereby tripping the actuating mechanism of valve 88 and returning the same to the position in which the pipe 86 communicates with a pipe 89 (Fig. 23).
  • valve 92 As the valve 92 is now closed oil passes through the pipe 89 into the right hand end of the cylinder 60 and moves the piston 61 to the left. Oil is discharged fromthe left hand end of the cylinder 60 through the pipe 90 and valve 86 into the discharge pipe 91. When the bar 88 approaches the left hand end of its stroke the plate 78 again engages the stem of valve 92,
  • the operation of the machine thus involvesr the initial opening of the valve 152 by the energization of the motor 156 through the contacts 164, 165 to admit the feed of liquid mixture to the bowl through the openings 22 in the feed pipe 21.
  • the armature of the relay 177 will be actuated and the valve 152wi1l be moved to closed position.
  • a drying period now ensues during the continued rotation of the rotor and at the end of such drying period the slow-acting relay 182 eiects a movement of its armature and an opening of the valve 153 to admit wash water to the cylinder.
  • Movement of the piston 51 in this manner causes a partial rotation of the tool 25. Such movement also permits closure of the valvel 58 and actuates switch 132 to open the circuit including relay. 177 to permit successive de-ener- Vgizing of solenoids 182, 192, 197 and 201 and opening of circuits controlled thereby.
  • Rotation of bar 28 also operates through the first lug 119, bar 124 and bell-crank 129 to turn the valve 88 into a position in which fluid is admitted to the left hand end of cylinder 60, as illustrated in Fig. 23. As the bar 28 moves inwardly, the plate 78 allows valve 92 to close, thereby precluding further flow of motive fluid to the right hand end of cylinder 52 and limiting the stroke of piston 51 to the full line position of Fig. 22.
  • the lug 101 trips the actuating mechanism of the valve 88 to reverse its position and effect a return stroke of the bar 28.
  • this bar returns it again opens the valve 92 by reason of the abutment of plate 78 thereagainst, allowing fluid to be again admitted to the right hand end of, cylinder 52.
  • Further rotation of bar 2 8 incident to such movement operates through the second lug 19 to again reverse the valve 88 and a second forward stroke of the tool ensues.
  • a third stroke is also initiated as above described.
  • valve 152 is actuated hydraulically instead of electrically.
  • Theoutlet from valve 58 is connected by pipe 93k with one end of a cylinder 225 in which is mounted a spring pressed piston 226 which is connected by a link 227 with the actuating arm 228 of the valve 152.
  • the pipe 93k communicates through a valve 229 with the discharge pipe 91.
  • the valve 229 has an operating handle 230 which is connected to. the armature lof solenoid 168.
  • a circuit Upon closure of the switch 161a, a circuitis closed f the contacts 169 and 171 or the contacts 170 and 172.
  • Contacts 169 and 172 are connected through wire 173 with the terminal 1601i of the switch 160 and contacts 170 and 171 are connected by wire 174 with the terminal 160e of the switch.
  • One terminal of the mercoid switch 132 is connected through the wire 175 with the wire 173 and-its other terminal is connected through the wire 176 with the armature and winding of a slow acting relay 177 which is connected through wires 178, 179 and 180 with wire 174.
  • the inner contact for the armature of relay 177 is connected by wire -181 through the field winding of relay 182 with wire 174.
  • relay 177 The outer contact of relay 177 is connected by wire 183 through the field winding of solenoid 167 with wire 179.
  • Terminal of switch 160b is connected by wire 185 with the contacts of relay 182.
  • the armature of relay 182 is connected by wire 186 with a contact 187.
  • a contact 188 is connected by wire 189 with the eld winding of the solenoid 159 which in turn is connected by wire 190 with wire 180.
  • the contacts 187 and 188 are bridged by a conductor 191 carried by the armature of a solenoid 192, the field winding of which is connected to the wire 186 and also to the wire 174.
  • a contact 193 is connected by a wire 194 with the wire 185 and a contact 195 is connected by wire 196 with the armature and field winding of a relay 197, the field winding being connected by a ⁇ wire 198 with the wire 174.
  • a conductor 199 carried by the armature of the solenoid 192 is adapted to bridge the contacts 193 and 195.
  • AThe contact of relay 197 is connected by wire 200 with the eld winding of solenoid 201 which in turn is connected by wire 202 with wire 174.
  • kA manually operable switch 203 is provided between wire 185 and wire 200.
  • the armature of a relay 204 is connected to the wire 185 and the contact for this relay is connected to the wire 200.
  • the field winding of the relay 204 is connected through relays not shown with the photoelectric cell 205 shown in Fig. 27.
  • Figs. 1 to 17 show the above described apparatus at rest, the bar 28 being arranged in the position shown in Fig. 4, the valve 88 being in the position shown in Fig. 5, the valves 150 and 151 being closed, the switch 160 being open and the various switches, relays of the electric circuit and the valves of the oil circuit being in the positions shown in Fig. 19.
  • the switch 160 With the rotor of the separator operatinglat proper speed the switch 160 is closed to start the cycle of operations of the device.
  • the movable contacts 164 and 165 being in engagement with the stationary contactsy 170 and 172, current is supplied to the torque motor in such way as to tend to move the valve '152 into closed position but as the valve is already closed there is no change in the position thereof.
  • Current passes through the mercoid switch 132, the armature and outer contact of relay 177, and field winding of solenoid 167. Energization of the solenoid causes actuation of its armature to lift contacts 164 and 165 away from contacts 170 and 172 and bring contacts 164 and 165 into engagement with contacts 169 and 171.
  • the motor 156 is oppositely energized and turns the valve 150 into open position, thereby permitting iiow of liquid mixture through the pipe 21 into the rotor of the separator.
  • a second circuit is closed through the field winding of relay 177.
  • the relay 177 is slow acting and is so timed that after a predetermined period it moves its armature out of engagement with the outer contact and into engagement with the inner contact, thus opening the circuit through the field winding of solenoid 167 and closing another circuit 'through eld winding of solenoid 182.
  • the solenoid 167 is thereby de-energized and its armature drops down to return the contacts 164 and 165 into engagement with contacts 170 and 172, thereupon the motor 156 is reversed to close the valve 152.
  • the relay 182 is slow acting and is so timed that it does not actuate its armature for a predetermined period, during which period the cake deposited on the interior of the rotor is dried. Engagement of the armature of relay 182 with its contact closes a circuit through contact 187, bridge 191, contact 188 and field winding of solenoid 159.
  • the solenoid 159 is therebyv energized and its armature is pulled against the action of the spring 158 to open valve 153, thereby supplying wash water through the pipe 2 1 to the rotor. Also a circuit is simultaneously closed through the field winding of solenoid 192.
  • the solenoid 192 is slow acting and is properly timed to operate after a predetermined period, during which the wash wateris supplied to the rotor. Lifting of the armature of relay 192 disengages the bridge 191 from the contacts 187 and 188 thereby opening the circuit through the solenoid 159 to de-energize the same and permit the spring 158 to return the valve 153 tol closed position.
  • the bridge 199 is brought into engagement with the contacts 193 and 195 thereby closing a circuit through the field winding of relay 197.
  • the relay 197 is slow acting and is timed to operate only after a predetermined period during which the washed cake in the rotor is again dried.
  • Lifting of the armature of the relay 197 closes a circuit through the field Winding of solenoid 201.
  • Energization of the solenoid 201 causes the same to move its armature to the left, thereby actuating the piston 94h of the valve 94.
  • valve 94 Before actuation of the piston 94h, the valve 94 was so set that oil was owing from pipe 86 through valve 88, pipe 89a, valve 92, pipe 93, valve 94, pipe 93o, valve 58 and pipe 93e to pipe 91, the valve 92 being held open by engagement 120 of the plate 78 with the thimble 92d and the valve 58 being held open by engagement of the rack 46 with the stem 58e (Fig. 20).
  • Energization of the solenoid 201 moves the piston 94h into the position shown in Fig. 21, thus closing 125 off pipes 93e from pipe 93 and putting pipe 93h into communication with pipe 93.
  • De-energization of solenoid 192 permits its armature to drop to disengage the bridge 199 from the contacts 193 and 195, thereby opening the circuit through solenoid 197.
  • Deenergization of solenoid 197 permits its armature to move out ofengagement ⁇ with its contact. thereby opening the circuit through solenoid 201 and de-energizing the same. Movement of the 150 operation is identical with the control system previously described.
  • FIG. 27 there is disclosed an automatic control for setting in operation the discharging mechanism should the rotor become unbalanced due to an uneven layer of deposit.
  • a plate 236 is linked to the frame of the centrifugal ⁇ and leads into a housing 237.
  • the housing is mounted on an independent foundation.
  • a source of light 238 and in the other end of the housing there is pro-- vided a photo-electric cell 239.
  • a partition 240 having an aperture.
  • plate 236 also has an aperture, the arrangement of these apertures being such that normally they are out of register. However, should the centrifugal begin to vibrate due to an unbalanced condition, the plate 236 will be moved suflicently to bring its aperture into register with the aperture in the partition 240 therebypermitting light to pass from the source 238 to the photo-electric cell 239.
  • the photo-electric cell 239 is connected to a relay 241 which in turn is connected to the iield windng of solenoid 204.
  • the solenoid 204 When light falls on the photo-electric cell 239 the solenoid 204 is energized, thereby causing its armature to be moved into engagement with its cont-act and closing the circuit through solenoid 201 to set the discharge mechanism in operation.
  • the switch 203 may be manually operated at any time to set in operation the discharging mechanism. Actuation of this switch closes the circuit through the solenoid201 to effect actuation of the control member 94h of the Valve 94.
  • a rotor mounted for rotation and reciprocation axially of said rotor, means for effecting reciprocation and rotation of said holder, means controlled by linear and rotary movement of said holder for determining the direction of linear movement, and means actuated bylinear movement of said holder for controlling the rotation thereof.
  • a rotor mounted for rotation and reciprocation axially of said rotor, means for effecting l'near and rotary movement of said holder, means actuated by said holder at the end of its inward stroke for reversing its direction of movement.
  • a rotor mounted for rotation and reciprocation axially of said rotor, hydraulic means for effecting reciprocation of said holder, a valve for controlling the direction ⁇ of linear movement of said hol-der, means actuated by said holder for effecting rotation thereof at one end of its stroke, means actuated by rotation of said holder to effect actuation of said valve to cause reverse linear movement of said holder and means actuated by said holder at the end of its reverse stroke to reverse said valve.
  • a rotor mounted for rotation and reciprocation axially of said'rotor, means for effecting linear and rotary movement of said holder, means actuated by said holder at one end of its stroke to reverse the direction of linear movement of the holder, means actuated by said holder at the opposite end of its stroke for effecting rotary movement of said holder, means actuated by rotary movement of said holder for effecting linear movement ofthe holderI in the first direction, and means actuated by said holder after a predetermined number of strokes for rendering inoperative said first named means.
  • a rotor mounted for rotation and reciprocation axially of said rotor, means for effecting linear and rotary movement of said holder, means actuated by said holder at one end of its stroke to reverse the direction of linear movement of the holder, means actuated by said holder at the opposite end of its stroke for effecting rotary movement of said holder, means actuated by rotary movement of said holder for effecting linear movement of the holder in the rst direction, and means for periodically supplying to said rotor a supply of mixture to be treated.
  • a rotor a tool holder mounted for rotation and reciprocation axially of said rotor, means for effecting linear and rotary movement of said holder, means actuated by said holder at one end of its stroke to reverse the direction of linear movement of the holder, means actuated by said holder at the opposite end of its stroke for effecting rotary movement of said holder, means actuated by rotary movement of said holder for effecting linear movement of the holder in the rst direction, means for supplying liquid to be treated to said rotor periodically and over a predetermined period, and means for subsequently supplying wash water to said rotor after a predetermined interval and for a predetermined period.
  • a rotor a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic means for effecting reciprocation of said holder, a valve for controlling the direction of movement of saidholder, means controlled by said holder for rotatingthe same at the outward end of its stroke, means operable by rotation of said holder toactuate said valve 'to cause inward movement of theholder.
  • draulic means for rotating said holder, a second y valve for controlling the direction of rotation of said holder, automatic means for actuating said second valve, means actuatable by said holder for controlling flow through said second valve.
  • a rotor a tool holder, hydraulic means for rotating said tool holder and reciprocating the same axially of said rotor, valve means for rendering said hydraulic means operative or inoperative, a pipe extending into a supply of mixture to be treated, a second valve for connecting said pipe with a supply of wash water, automatic means -for openingsaid first valve and closing the same after a predetermined period, opening said second valve after a second predetermined period and closing the same after a third predetermined period and after a fourth predetermined period actuating said valve means to render said hydraulic means operative, and means operable by said holder after a predetermined number of strokes for actuating said valve means to render said hydraulic means inoperative.
  • a rotor a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic means for rotating said holder, hydraulic means for reciprocating said holder, valve means operable by reciprocation of said holder for controlling said rst hydraulic means, and valve means operable by rotation and reciprocation of said holder for controlling said second hydraulic means.
  • a rotor mounted for rotation. and reciprocation axially of said rotor, hydraulic means for rotating said holder, hydraulic means for reciprocating said holder, valve means for rendering said hydraulic means operative or inoperative, valve means operable by reciprocation of said holder for controlling said first hydraulic means, valve means operable by rotation and reciprocation of said holder for controlling said second hydraulic means, a pipe extending into said rotor, a valve connecting said pipe with a supply of mixture to be treated, a second valve connecting said pipe with a supply of wash water, automatic means for opening the rst valve and closing the same after a predetermined period, opening the second valve after a second predetermined period and closing the same after a third predetermined period and after a fourth predetermined period actuating said rst named valve means for rendering said hydraulic means operative.
  • a rotor a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic means for rotating said holder, .hydraulic means for reciprocating said holder, valve means for rendering said hydraulic means operative or inoperative, valve means operable by reciprocation of said holder for controlling said first hydraulic means, valve means operable by rotation and reciprocation of said holder for controlling said second hydraulic means, a pipe extending into said rotor, a valve connecting said pipe with a supply of mixture to be treated, a second valve connecting said pipe with a supply of Wash Water, automatic means for opening the first valve and closing the same after a predetermined period, opening the second valve after a second predetermined period and closing.
  • valve means for rendering said hydraulic means operative, and means operable by said holder after a predetermined number of strokes for actuating said valve means to render said hydraulic means operative.
  • a rotor In combination, a rotor, a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic means for reciprocating said holder, a valve for controlling the direction of movement of said holder, hydraulic means for rotating said holder, a second valve for controlling the direction of rotation of said holder,
  • a rotor a tool holder mounted for rotation and reciprocation axially 'of said rotor, hydraulic means for reciprocating said holder, a valve for controlling the direction of movement of said holder, hydraulic means for rotating said holder, a second valve for controlling the direction of rotation of said holder, means for actuating said second valve, a selfclosing valve for controlling flow through said rst and second valves, means carried by said holder for opening said last named valve at the end of an outward stroke, means operable by rotation of said holder to actuate said first valve to cause inward movement of the holder, means operable by inward movement of said holder to actuate said rst valve to cause reverse movement of said holder, and means operable by said holder after predetermined rotation thereof for reversing said second valve.
  • a rotor a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic means for rotating said holder, hydraulic means for reciprocating said holder, valve means controlled by reciprocation and rotation of said holder for determining the direction of reciprocation thereof, valve means for controlling the direction of rotation of said holder, Arneans controlled by said holder for rendering said rst hydraulic means operative or inoperative, and valve means actuatable by said hblder after a predetermined number of strokes to render said second hydraulic means operative.
  • a rotor a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic means for rotating said holder, hydraulic means for reciprocating said holder, valve means controlled by reciprocation and rotation of said holder for determining the direction of reciprocation, valve means for controlling the direction of rotation, valve means controlled by reciprocation of said holder for rendering both said hydraulic means operative or inoperative, means to actuate said second valve means to produce rotation of said holder in one direction, and means actuatable by said holder after a predetermined number of strokes for reversing said valve means.
  • a rotor a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic means for rotating said holder, hydraulic means for reciprocating said holder, valve means controlled by reciprocation and rotation ofvsaid holder for determining the direction of reciprocation, valve means for determining the direction of rotation of said holder, valve means controlled by said holder for alternately rendering each of said hydraulic means operative and the other hydraulic means inoperative, vmeans for actuating said second valve means for causing rotation of said holder in one direction, and means actuated by the holder after-a predetermined number of strokes for reversing said second valve means.
  • a rotor a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic means for rotating said holder, hydraulic means for reciprocating said holder, a valve controlled yby reciprocation and rotation of said holder for determining the direction of reciprocation, a second valve for deter'- mining the direction of rotation of said holder, a third valve controlled by said holder for pre,- venting flow through either said first or second valve, means for actuating said second valve to cause rotation of said holder in one direction, means actuated by said holder after a predetermined number of strokes for reversing said second valve and a fourth valve controlled by said first hydraulic means for by-passing the actuating fluid around both said hydraulic means.
  • a rotor a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic means for rotating said holder, hydraulic means for reciprocating said holder, a valve controlled by reciprocation and rotation of said holder for determining the direction of reciprocation, a second valve for determining the direction of rotation of said holder, a third valve controlled by said holder for pre- 'venting fiow through either said first or second valve, means actuated by said holder after a predetermined number of strokes for reversing said second valve, a fourth valve controlled by said first hydraulic means for by-passing theactuating fiuid around both saidI hydraulic means, a pipe extending into said rotor, a fifth valve connecting said pipe with a supply ofvmixture to be treated, a sixth valve connecting said pipe with a supply of wash water, and automatic means for opening said fifth valve and closing the same after a predetermined period, opening the sixth valve after a second predetermined period and closing the same after a third predetermined erio
  • a. rotor a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic means for rotating said holder, hydraulic means for reciprocating said holder, a valve c ontrolled by reciprocation and rotationof said holder for determining the diy rection of reciprocation, a second valve for de ⁇ termining the direction of rotation of said holder, athird valve controlled by said holder for pre venting flow through either said first or second valve, means actuated by said holder after a predetermined number of strokes for reversing said second valve,v a fourth valve controlled by said ,rst hydraulic means for by-passing the actuating fiuid around both said hydraulic means, a
  • a rotor a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic means vfor rotating said holder, hydraulic means for reciprocating said holder, a valve controlled by reciprocation and rotation of said holder for 'determining the direction of ⁇ reciprocation, a second valvev for determining the direction of rotation of said holder, a third valve controlled by said holder for preventing fiow through either said first or second valve, means actuated by said holder after a predetermined numberof strokes for reversing said second valve, a fourth ⁇ valve, controlled by said first hydraulic means for by-passing the actuating fluid around both said hydraulic means, a pipe extending into said rotor, a fifth valve connecting said pipe with a supply of mixture to be treated, a sixth valve connecting said pipe with a supply of wash-water,.electrical means for opening said fifth valve and closing the same after a predetermined period, opening the sixth valve after a second predetermined period and closing the same after a third predetermined
  • a rotor mounted for rotation and reciprocation axially of said rotor, hydraulic mans for rotating said holder, hydraulic means for reciprocating said holder, a yvalve controlledl by vreciprocation and rotation of said holder for determining the direction of reciprocation, a second valve for determining the direction of rotation of said holder, a third valve controlled by said holder for preventing flow through either'said first or second valve, means actuated by said holder after a predetermined number of strokes for reversing said second valve, a fourth valve controlled by said first hydraulic means for by-passing the actuating uid around both said hydraulic means, a pipe extending into said rotor, a fifth valve connecting said pipe with'a supply of mixture to be treated, a sixth valve connecting said pipe with a supply of wash-water, electrical means for opening said fifth valve and closing the same after a predetermined period,vopening the sixth trical means, and means responsive to the vibration of said rotor
  • a rotor In combination, a rotor, a tool holder Imounted for rotation and reciprocation axially of said rotor, hydraulic means for rotating said' holder, hydraulic means for reciprocating ⁇ said holder, a valve for determining the direction of reciprocation, lugs carried by said holder, a slide engageable by said lugs, linkage between saidlmeans 'for reversing said second valve after a 'predetermined number of strokes of said holder.

Description

July'lo, 1934. LDJQNES K y 1,965,840`
` 'CENTRIFUGAL MACHINE 'July 10, 1934. L. D. JONES CENTRIFUGAL MACHINE Filed Nov. 17. 1932 11 Sheets-Sheet 2 INVENTOR LEO D. JONES.
ATTORNEY July 1o,y 1934. i
L. D. JONES 1,965,840
CENTRIFUGAL MACHINE L. D. JONES CENTRIFUGAL MACHINE July-1o, 1934.l
N ma lNvz-:NToR ,LILO DJoNns ATTORN EY July 10, 1934. D, JONESA 1,965,840
CENTRIFUGAL MACHINE Filed Nov. 17, 1932 11 Sheets-Sheet 6 INVENTOR LEO D J ONE;
BY ma' Q @LUM-:b
ATTORNEY July 10, 1934. L. D. JONES 1,965,840
CENTRIFUGAL MACHINE Filed Nov. 17,v 1952 11 sheets-sheet 7 INVENTOR LEO D. JONES. WM Q. CwM-J,
`ATTORNEY July 10, 1934. L. D. JoNEs CENTRIFUGAL MACHINE Filed Nov. 17.1952 11 Sheets-Sheet 8 160C |NVENT0R 160 Y Y BY LEO Dlorms.
awfcnz ,6L/ap@ ATTORNEY July 10, 1934. l.. D. JONES 1,965,840
CENTRIFUGAL MACHINE Filed Nov. 17, 1932 11 sheets-sheet 9 /91 69a ZI mvENToR *.91 LBO D. J omas.
MQW
ATTORNEY CENTRIFUGAL MACHINE Filed NOV. 17. 1932 11 Sheets-Sheet 10 4INVENTOR v LEO D. JONES M @M1 ATTORNEY 'July 1o, 1934. L. D. JONES 1,965,840`
CENTRIFUGAL MACHINEK Filed NOV. 1'7, 1932 11 Sheets-Sheet ll lNvEN-roR B LBODJONBS.
ATTORNEY Patented July V10,193.4 y f UNITED STATES PATENT OFFICE CENTRIFUGAL MACHINE Leo D. Jones, Philadelphia, Pa., assignor to The Sharples Specialty Company, Philadelphia, Pa., a corporation of Pennsylvania Application November 17, 1932, serial No. 643,022 j i 23 Claims. (Cl. 21o- 70) This invention relates to centrifugal machines corne into operation; that-the operating mechaand particularly to .mechanism for dislodging or nism carries the tool back and forth along the unloading fromthe rotor thereof solids collected cylindrical interior surface of the solids lin the therein as a result of separatingsolids from rotor and automatically reverses such motion of liquids centrifugally. the tool before it comes into engagement with 60 In the separation of solids from liquids centhe rotor; that the depth 0f Cut made by the tOOl trifugally the removal from the rotor of thesolids iS automatically Controlled and the means vfor from which liquid has been separated, in such a adjusting the tool for successive cuts is provided manner that the separating operation maybe `.with eieetive Stops that cannot produce Wedeing subject to a minimum interruption is a diilicult 01. binding; that in the vautOrnatic reversal of 65 problem and even though apparatus may `be the mQtiOll 0f the tOOl, the reversal Of the OI'Ce found that issatisfactoryy with some materials, upOn it iS full and Complete and automatic; that that apparatus will frequently not be satisfacthe movement of the tool backy and forth across tory with other materials. Efforts have been made the bed of Solids in the rotor is automatically to provide apparatus capable of removingsolids controlled; and that the automatic mechanism 70 continuously `from centrifugal rotors but such can be so controlled as tobring the tool to rest apparatus is subject to similar defects. f in a desired position at the end of each dislodg- It has been proposed to provide a dislodging lng Operation. u or cutting tool :for removing solids from centrif Anether feature 0f this invention is that .means ugal rotors during the rotation thereof, butv deare Provided fer eutomatieally'producing the f01 75 vices that have been proposed require extensive lowing cycle of operation of the centrifugal: and careful control by the operator and they Liquid miXture iS supplied to the centrifugal are likely to injure the rotor vwithout effecting the through a. predetermined period and is then shut desired removal of solids therefrom. It has been 01T; the depOSit in the IOtOI iS Centrifugally dried proposed to employ a. dislodgingor cutting tool foi e Second predetermined periOd; Wash Water is 80 that is provided with belt driven operating and Supplied t0 vthe Centrifugal through a third prereversing mechanism, but such devices require determined peiiOd and iS then Shut 01T; the deoonsiderable skin and attention on .the part of posit is again eentrifugauy dried through a fourth the operator. Thus, the inertia of the moving predetermined period; the dislodging tool is parts frequently carries vthe tool past the points Started and Causedv t0 operate to remove vthe 85 at which it should come to rest andleads to injury deposit from the 1`0t01 end itS Operation iS thereor destruction of the rotor vor the tool as afresult after Stopped and liquid mixture iS again Supof unintended and unavoidable contactof these plied t0 `the Centrifugal t0 begin another Cycle. members with each other. vThis is particularly ,A further feature iS that means are provided likely to ooour in eases in which the tool is errof for automatically terminating the supply of liquid 9 `neously believed to be acting upon the bowlcake. miiitlli'e and Starting the Operation 0f the dis- In other cases, when acting upon cake, the tool lodging tOOl Should uneVenneSS develop in the movement is notcarried far enough and relayer of solids in the separator duringthe period moval of cake is incomplete. Attemptsto. limit 0f Supplyv of liquid mixture thereby causing vi- 40 tool movementin suchdevices by stops may cause bratien 0f the Centrifugal.
either binding or shocks diilicult to absorb. `Other objects, novel features and advantages A featureof ythis invention is that a tool isfem' 0f this invention will bevappare'nt from the 'folployed which effects dislodgment of the solids lowing .specification and accompanying drawcollected in a centrifugal rotor quickly vwithout ings, wherein: i y
materially reducing the .speed of rotation of the Fig. 1 is a view, partlyinv section, of, a, een- 100 rotor or stopping it, and the tool is `providedwith trifugal machinev embodying the.. invention; operating mechanism whereby it is operated au Fig. 2 is .a plan view of the tool operating tomatically to eifect the desired removal of solids mechanism shown in Fig. 1; l from the rotor without danger of injury to the ro- Fig. 3 is an enlargedl fragmentary view similar tor. Thusfeatures of this invention are that to Fig. 1; y
the means for moving the tool is free of inertia Fig. 4 is a section on the line 4 4 of Fig, 2; that willy tend to carry the tool into engagement Fig. 5`is a partial section on the line 5-5 of with the rotor; that the tool is prevented from Fig. 2; I y
movinginto engagement with the rotor by stops Fig. 6 is a partial section on the line 6-6 of that d not cause binding or wedging when they Fig. 4; i
Fig. y'1.is a partial section on theline 7-7 of l Fig. 8 is an enlarged *section` on the line 8-8 rig. 9 is .en eniaifgeqlse-etien on the une 9-9 4 Vof Fig. 3;
Vals
Fig. 10 is an enlarged section on the line 10-10 Fig; 11 is a section von the line 11--11 of Fig. 10; Fig. 12 is a section on the line 12-12 of Fig. 2; Fig. 13 is a section on the line 13--13 of Fig. 12; Fig. 14 is a section on the line 14-14 of Fig. l2; Figs. 15, 16 and 17 are perspective views of individual parts:
Fig. 18 is a piping diagram;v
Fig. 19 is a combined piping and wiring diagram;
Figs. 20, 21, 22, 23, 24 and 25 are diagrammatic views of successive steps in the -cycle of operation of the machine;
Fig. 26 is a combined piping and wiring diagram of a modified form of the invention; and
Fig. 27 is a diagrammatic section of a control member.
While apparatus embodying my invention is subject to various modifications the. following detailed description of the embodiment .shown in the drawings will assist in an understanding of the invention and additional features will appear therefrom.
A centrifugal rotor 10, comprising a wall 11, which may be of cylindrical or other suitable form and which may be perforated or lmperfo-A rate, an end wall 12 provided with an opening 13 and an end wall 14, is mounted upon shaft 15 carried in bearings 16 and 17 which are supported by a housing 18 which encloses the rotor. The shaft, and the attached rotor may be rotated in any suitable manner as by a pulley 19. In case the rotor is perforated, liquid separated centrifugally from the solids is collected in the housing 18 and withdrawn therefrom through outlet 20. The mixture which is to be separated is supplied in any suitable manner to the rotor 10 as by means of pipe 2l having discharge holes 22. After a cake of solids of suitable radial depth is formed in the rotor by straining or by sedimentation or by both such operations, and aftersupplyv solids.
The means for supporting and moving the dislodging or cutting tool 25 may be mounted in any manner, in proper relation to rotor 11, as by bolting the flange or base plate 26 thereof in position over the opening 2'? in the housing 18. Tool 25 is attached to and supported by the tool-operating bar or member 28 and this member is mounted for reciprocation and rotation in bearings 29 and 30 carried by a frame 31 which is connected to the flange or base plate 26. Bearing 30 is provided at the end thereof adjacent the rotor with a stuiling box that prevents entrance into the bearing of foreign materials such as liquids and solids introduced into rotor 11, said stuffing box comprising packing 311 that is compressed by compression member 32 upon tightening of bolts 33. Between bearings 29 and 30 the frame 31 is draulic spaced from bar 28 to provide a space 34 around bar 28. It is also provided with openings 34a communicating with this space, through which foreign material entering bearing 30 is discharged, in order that it may not enter bearing 29. In the construction shown, frame 31 is provided with a third bearing 35 for bar 28.
In the construction shown in the drawings the cutting edge of tool 25 is moved from and toward the inner surface of rotor 11 by rotation of bar 28. During the formation of a cake of solids in the rotor, tool 25 is maintained, by suitable rotation of bar 28, in a position in which it will not engage the surface of the cake. After a cake of suicient depth has been 'formed bar 28 is rotated, to carry the cutting edge of the tool toward the inner surface of rotor 11. For this purpose bar 28 is provided with a keyway 37 in which a key 38 is fitted, this key being connected to worm-wheel 39 housed in frame 31 between bearings 29 and 35. Shaft 41 is mounted in frame 31 for rotation and carries a worm 40 engaging worm-wheel 39. Shaft 41- is also provided with gear 42 which is engaged by gear 43 mounted on shaft 44 to which is secured gear 45 which in turn engages rack 46. Rack 46 slides within auxiliary housing 310 and rod 50 is secured to rack 46. The rod 50 passes through one end of auxiliary housing 310 and carries on its end a. piston 51 that is located within hydraulic cylinder 52.
The cylinder 52 is supported by the plate 78,
later to be described, and is provided with heads 52a having ports through which liquid is supplied to and discharged from the ends of the cylinder.
consequently the extent of rotation of the bar28 `The extent of reciprocation of the yrack 46 and is limited by adjustable steps 4'1 and 4s carried. 'Y
respectively by the auxiliaryv casing 310 and one- 46 and the piston 51. Liquid kunder pressure is supplied to the cy1inder52by means later to be described for causing reciprocation of the piston,y i 51 'to `effect rotation of the bar28 through the l gears previously-described.;
For-the purpose of carrying cutting a directionparallelto the axisfof therotor, hy-
t eans isprovided. In the construction shown -t 's means comprises hydraulic cylinders 59 and 60 within which are located-"pistons v61 provided with .piston rods 62 f'vwhich extend..
throughstumng boxes 63; 'in-,the construction shown, cylinders 59 and. 60 are respectively provided with heads 64 that abut against angeo'r plate 26 of frame 31 'and'heads653thatcarry-.v
stuffing boxes 63. Heads tiiare'jp'rovided withv ears 66 which are attached'.l;iy'*.1nea.r|sfofboltsA 67 to portions of frame 31,v Togassistin holding cylinders 59 and -60 in positionfand to hold'the heads on the cylinder walls.: long., bolts .68..pass
through cylinderY heads 65 and through-cylinder heads 64 and are threadedvintoilange orabase* piate 26.- f, y
Tool-operating bar 428 is formed: with a-por.-
tion 69 that is of reduced diameter and "a bushing '10 fits thereon andI rests againstV the' v resulting shoulder and is'prevented'vfromf rotatingn bar 2s by pin '11. Yoke .'12 is1pr ovided with angebening within which bushing 'lorotateaiand nut '73 acts tol hold yoke72 in jplace on bushi'ng'f'-70.v A plate 74 lies between nut'73` andjyokef72and has a tongue extending into. 's1ot- '15in bar 28 so that rotation of bar 28 will' not 'causeiuns'crew- `1:60125 v back and.- forth across the cakejin rotor'` 11 in r ing of nut 73. The outer ends of piston rods 62 are secured in yoke 72 as shown in Fig. 2 and lmotion of pistons 61 is thereby imparted to 'rod 28 to {eiect movement of the tool across the face of the cake in rotor 11. Plate 76, which is triangular in the construction shown is held in fixedA position with respect to frame 31 by being bolted to the three rods 77 that are threaded vinto'irame and their inner ends engage the end of castingr31 to limit the movement of bar 28 into the rotor (to the right in Fig. 4). These bolts are threaded into yoke 72 in order that their position thereon may be adjusted, and are held in adjusted position with respect to bar 28 by lock nuts 80. Stop bolts 81 are carried by yoke 72 and their outer ends engage plate .76 to limit the outward byadmitting liquid under pressure alternatelyr to opposite ends of cylinders 59 and 60, ltool 25 will be moved back and forth across the cake in rotor 11and thatthe engagement of lstops 79 v,with casting 31 will adiustably limitthe extent of such movement in onevdirection whilel engagementofstops 81 with plate 76 will adjustably limit. that'movement in the other direction, .'and
that bar 28 may berotated to adjust the dis- 'v tance 'of the cutting'l edge .of the tool from the inner surface of the rotor without. imparting rotation to any partv of..the' :hydraulic toolrecip' `rocating mechanism. Wormwheel 39, .which rotates bar 28,l is "soj locatedintermediate the ends of bar 28 th'at'keywy37'fneyer passes within or through packing. 3112 or'into ia position in which material treated the rotorvmight lodge ing to the particldrstep in the cycle. And, such mechanism effects acompleteand rapid change,` the supply to any end of the cylinders being. suddenly and completely discontinued and mo-` tion promptly halted.
The `circulating system forthe operating liquid is shown .in Fig.^18. A supply of liquid,prefer ably oil, maintained in tank 83, and pump 84 driven Vby motor 85 delivers the liquid under pressure' into supply pipe 86 which delivers the liquidv under pressure to' four-way-valve 88.
From four-way-valve 88, pipes 89 communicate.
a solenoid 201.
a valve head 92d which is maintained on its seat by spring 92h. The valve head 92a is provided with a stem 92c which projects beyondthe casing and is provided with an adjustable thimble 92d.y The valve is supported by ,the plate -76 and theV thimble j 92d l is, arrangedsito, beengaged bythe yoke 72. A" pipe 93 leadsfrom the valve :92 to a valve 94 having three outlets from which lead. pipes 93a. 93h and 93o. The valve 94 is supported-by ythe plate 76 and 'comprises a casing having a central cylindricaluchamber 94a, in
,which is provided a. reciprocating piston 94h (Fig. 8). A Aconduit 94e connects the ends of thev oyl'nders with the Vdischarge port 94e connected with piper93a. The -pipe 93 communicates with theinlet port 94jr which in turn communicates with the central portion of the cylinder 94a.. The outlet ports 94g and 94h communicate with pipes 93h and 93e and also communi-4 cate with the chamber 94a. The piston 94h is recessed centrally 'so that in one position it pro vides communication between the inlet port and one outlet port and in another position provides communication between the inlet port and the other outlet port. When either outlet port is in' communication with the inlet port, the other outlet port is in communication with the conduit 94o. u A rod 53 is connected at one end to the piston 94h and at the other end to the armature of A second rod 54 is connected at the other end to this piston and extends parallel to the bar 28 and has its other end supported by frame 31. A collar 55 isadjustably mounted on the rod 54 and is adapted to` be engaged by a lug 119a later to be described and carried by auxiliary casing 310. 'The valve 58 comprises ar i 1`lcasing having inlet and outlet chambers connectvjedfby aport formedv with a seat fora valve-headA '58a which is maintained on .its seat by spring "58h, 'I'he valve head 58ak is provided with a stem 258e which projects beyond the casing. A pipe;
93e leads from the valve 58 to the discharge pipek ablel-member95 of valve 88 is in the position shown in Fig. 5,.liquid under pressure will pass from pipev 86 through passage 96 into pipes 89 and vto the right hand ends of cylinders 59 and 60 and liquidwill escape from the leftv hand ends of those cylinders through pipes and through passage 97 ofv movable member 95 into return pipe 9,1. i Shifting of "movable member countere internal construction of valve 88 appears `v in Fig. 5. Provided valve 92 is. closed when movf j clockwise until passage 96 leads from pipes 89 i to returnpipe 91 and passage 97 `leads from supply pipe 86 to pipes 90 willcause liquid under pressureA to be supplied'to the left-'handends of those-.oylinders and permit liquid to bedischarged from the right-hand end of those cylinders into return pipe91. is hereinafter` described for effecting movement oi' movable member 95 back and forth from one of the adjustments above described to the other.
Th automatic reversing mechanism comprises rod 96', (Fig. 4) one end of which is supported 'no 'l Automatic mechanismv 145 for sliding in a frame 77a supported by two of 15@ frame 31.
the rods 7'T and the other end of which is supported by a pivot on rocker arm 97 which is pivoted to bracket 98 carried by frame 31. Contact collars 99 are threaded upon rod 96in order that their position thereon may be adjusted. Pivoted to the opposite end of rocker arm 97 is link 102 that is pivotally connected to one end of valve-operating bar 103` supported for sliding in auxiliary frame 104 that is mounted upon Movable member 95 of four-wayvalve 88 is attached to shaft 105 to which is secured arm 106 carrying roller 107. Rod 103 is provided with arms 108 and 109 for cooperating with roller 107 to swing arm 106 and rotate movable member 95 of valve 88. Rod 103 is provided with a projection 110 which cooperates with a projection 11l on lever 112 that is pivoted at 113 and pressed upwardly by spring 114. These parts are shown in Figs. l and 4 in the position in which they lie when tool is at rest and valve 88 is in the setting shown in Fig. 5. Arm 106 is provided with an extension 116 that engages cushioning stops at the limiting positlons of arm 106. These stops may be of any 25\ suitable construction but are shown in the draw- \ings simply as lugs 117 in which are adjustably threaded the screws 118 that engage extension 116.
The ring 74 (Fig. 12) is provided with a'plurality of similar lugs 119 and is al'so provided with a lug 119a. The lugs 119 are adapted to engage a lug 120 extending downwardly from an arm 121 which is pivotedat one end by a pin 122 to a member 123 which in turn is attached to a bar 124 by bolts 125. A spring 126 contained within a housing 127 on the member 123 tends to maintain ythe i arm 121 in the position shown in Fig. 13 with the lug 120 in the path of lugs 119. The bar v124 is slidably supported by frame 77a. and is attached at'one end to one arm of a bell crank lever 129 also supported by the frame. The other end of the bell crank lever 129 is forked and surrounds the bar 96'. The left-hand collar 99 on the bar 96 is arranged to be engaged by the forked arm of the bell crank lever and an additional collar 130 and spring 131 are provided to take up slack motion. f
Clockwise rotation of the bar 28 and ring74 from the position shown in Fig. 12 causes the first lug 119 to pull the arm 121 to the right, thereby sliding bar 124 to the right to turn bell crank lever 129 and move the rod 96 to the left from the position shown in Fig. v4. Such movement of the bar 96 causes barY 103 to move to the right until the apex of projection 110 snaps over the apex off* projection 111 and then a quick and complete movement of the rod 103 to the right 1 occurs as projection 110 rides down the right hand slope of projection 111 due to the action of the spring 114 and the engagement of the arm 108 with roller 107 causes valve member 95 to be given a quick and complete counter-clockwise movement from the position shown in Fig. 5, to put the supply pipe 86 into communication with the pipe 89. Thereupon oil is caused to flow intovr the position shown in Fig. 4, thereby returning the fvaive sa to the position shown in Fig. 5. Thereupon, the valve 92 being closed and the valve 94 properly set, oil will be suppliedto the right hand end of the cylinder 60 and the bar -to cause the next lug 119 to again actuate the valve reversing'mechanism and the'above described cycle is repeated. Rotation of the bar 28 is effected by movement of the rack 46 through the medium of gears 41, 42, 43 and 45, the rack 46 being actuated by the piston 51 which in turn is actuated by oil supplied to the cylinder 52, the supply 'of oil being controlled by the valve 92 which is opened by the bar 28 when returned to the position shown in Fig. 4. The bar 28 is thus caused to reciprocate and prior to each stroke the bar is rotated slightly to advance the cutting edge of the tool 25 toward the rotor. Continued rotation of the bar 28 brings the lug 119a. into alignment with the stop collar 55 mounted on the connecting rod 54. Engagement of the lug 1190, with the collar 55 operates the valve 94 and causes reverse rotation of the bar, when it has returned to` position shown in Fig. 4, to move the cutting edge of the tool 25 away from the rotor. The lug 120 is provided with a cam face 120a which is engaged by the lugs 119 upon counterclockwise rotation of the bar 28. When the lugs engage the face 120e the arm 121 swings outwardly to 4permit the lugs to pass.
to the shaft 135 and at its outer end is connected to the end of a plunger 137 around which is arranged a spring 137a for movingplungerto the right.I The other end of the plunger lis engaged by an adjustable push rod 138a connected to a lever 138 pivotally supported by a bracket attached to the valve 58. A bolt 139 is threaded through the lever 138 and is adapted to engage the end of stem 58e of the valve 58. A lock nut 140 is provided to hold the bolt/139 in adjusted position. A rod 141 is slidably mounted in the stop bolt 47 and projects into the casing 310 into position to be engaged by the end of rack 46. 'Ihe rod 141 projects through an eye 142 in the lever 138 and is provided with a collar 143 threaded thereon. The collar 143 is adjustable on the rod 141 and a lock nut 144 is provided for holding the rod 141 to the right causes the lever 138 to swing, thereby opening the valve 58 and rotating the mercoid switch from the position shown in Fig. 11 in which the switch is open to a position in which the switch is closed.
A supply pipe 150 for the mixture to be separated and a water supply pipe 151 communicate with the pipe 21. 'I'he pipe 150 is controlled by a valve 152 and the pipe 151 is controlled by a valve 153. The valve 152 is provided with a quadrant 154 which meshes with a pinion 155 mounted on the shaftof a torque motor 156. 'I'he valve 153 is provided with an arm 157 which is connected by suitable linkage with the armature of a solenoid 159. `A spring 158 tends to hold the valve in closed position. Y 1
The torque motor 156 is connected with a three phase power line through a switch 160. The wire 161 leads directly from the motor to one terminal 160a of the switch 160. The wires 162 and 163 lead fromthe motor to contacts164 and 165 at the end of an insulated bar 166 supported by the armature 167 of a solenoid 68. The contacts 164 and are adapted toengage respectively either l150 rack 46 to the left also actuates gears 45, 43, 42 and 41 to rotate the bar 28 to bring the tool 25 into cutting position. Rotation of the bar 28 causes the first lug 119 to move the bar 124 thereby actuating the bell crank lever 129 to pull the rod 96 to the left and actuate valve 88 to turn the same into position in which the pipe 86 is connected to the pipe 90 and shutting off iiow to cylinder 52 to stopr rotation of bar 28.
Oil thereupon flows into the left hand end of the cylinder 60 and causes the piston 61 to move to the right; thereby moving the bar 28 into the rotor. The oil from cylinder 60 discharges through pipe 89 and valve 88, into pipe 91. As the bar 28 moves inwardly the plate 78 moves out of engagement with the thimble 93e, thereby permitting valve 92 to close (Fig. 23), to prevent flow to cylinder 52. As the bar 28 reaches the limit of its stroke the lug 101 engages the right hand collar 99 to move the rod 96' to the right, thereby tripping the actuating mechanism of valve 88 and returning the same to the position in which the pipe 86 communicates with a pipe 89 (Fig. 23). As the valve 92 is now closed oil passes through the pipe 89 into the right hand end of the cylinder 60 and moves the piston 61 to the left. Oil is discharged fromthe left hand end of the cylinder 60 through the pipe 90 and valve 86 into the discharge pipe 91. When the bar 88 approaches the left hand end of its stroke the plate 78 again engages the stem of valve 92,
thereby opening the same and permitting oil to ow through the valve 92, pipe 93, valve 94, pipe 93b and into the right hand end of cylinder 50, thereby moving the piston 51 further to the left. Movement of the piston causes further rotation of the bar 28 and the engagement of the second lug 119 With the lug 120 to slide the bar 128 thereby again actuating bell crank lever 129 and rod 96 to reverse the position of valve 88 and repeat the cycle just outlined. The third actuation of the piston 51 brings it to the limit of its movement and the third rotational step of the bar 28 brings the lug 119a into position to engage the collar 55 on rod 54 on its next movement to the right (Fig. 25). Engagement of the lug 119a with the collar 55 returns the p iston to the position shown in Fig. 25. On the next return of the bar 28 to its left hand position the valve 92 is again opened and oil will now iiow'through this valve, pipe 93, valve 94 and into the left hand end of cylinder 50, thereby forcing the piston 51 to the right. The rack 46 moves to the right with the pistonl and causes reverse rotation of the bar to its original position, opens valve 58 and actuates mercoid switch 132 to close the same. YActuation of the mercoid switch 132 closes the circuits through the solenoid 168 and the relay 177, thereby energizing the torque motor 156 to again open the valve 152 from which point the cycle above described' will be repeated.
The operation of the machine thus involvesr the initial opening of the valve 152 by the energization of the motor 156 through the contacts 164, 165 to admit the feed of liquid mixture to the bowl through the openings 22 in the feed pipe 21. After this feed has continued for a. suitable period, the armature of the relay 177 will be actuated and the valve 152wi1l be moved to closed position. A drying period now ensues during the continued rotation of the rotor and at the end of such drying period the slow-acting relay 182 eiects a movement of its armature and an opening of the valve 153 to admit wash water to the cylinder. The feed of water through this valve is maintained until the armature of slow-acting relay 192 has disengaged the bridge 191 from contacts 187 to permit the return of valve 153 to closed position. The washed cake is then dried during the lag incident to the operation of slow-acting relay 197. The operation of relay 197 energizes the solenoid 201 to move the piston 94h, 94a into the left hand position, in which communication is established between pipe 93 and the right hand end of cylinder 52 to move piston 51 to the left as indicated in full lines in Figure 22.
Movement of the piston 51 in this manner causes a partial rotation of the tool 25. Such movement also permits closure of the valvel 58 and actuates switch 132 to open the circuit including relay. 177 to permit successive de-ener- Vgizing of solenoids 182, 192, 197 and 201 and opening of circuits controlled thereby. Rotation of bar 28 also operates through the first lug 119, bar 124 and bell-crank 129 to turn the valve 88 into a position in which fluid is admitted to the left hand end of cylinder 60, as illustrated in Fig. 23. As the bar 28 moves inwardly, the plate 78 allows valve 92 to close, thereby precluding further flow of motive fluid to the right hand end of cylinder 52 and limiting the stroke of piston 51 to the full line position of Fig. 22.
At the end of the inward stroke of the tool the lug 101, (Fig. 4), trips the actuating mechanism of the valve 88 to reverse its position and effect a return stroke of the bar 28. As this bar returns it again opens the valve 92 by reason of the abutment of plate 78 thereagainst, allowing fluid to be again admitted to the right hand end of, cylinder 52. Further rotation of bar 2 8 incident to such movement operates through the second lug 19 to again reverse the valve 88 and a second forward stroke of the tool ensues. A third stroke is also initiated as above described. The third movement of bar 28 to the right causes abutment of lug 119a with collar 55, thereby reversing the position of the valve 94 and allowing oil to-be admitted to the left hand end of cylinder 50 Yto move the piston 51 to the right to return the tool 25 to its originalangular position, upon the completion of its reciprocating stroke to the left and the consequent opening of the valve 92. The switch 132 is also moved to closed position by means of the rack 46 which is moved to the right by such movement, and the cycle is thereupon repeated.
In Fig. 26 a modied form of the control mechanism is disclosed. In lthis modification the valve 152 is actuated hydraulically instead of electrically. Theoutlet from valve 58 is connected by pipe 93k with one end of a cylinder 225 in which is mounted a spring pressed piston 226 which is connected by a link 227 with the actuating arm 228 of the valve 152. The pipe 93k communicates through a valve 229 with the discharge pipe 91. The valve 229 has an operating handle 230 which is connected to. the armature lof solenoid 168.
Upon closure of the switch 161a, a circuitis closed f the contacts 169 and 171 or the contacts 170 and 172. Contacts 169 and 172 are connected through wire 173 with the terminal 1601i of the switch 160 and contacts 170 and 171 are connected by wire 174 with the terminal 160e of the switch. One terminal of the mercoid switch 132 is connected through the wire 175 with the wire 173 and-its other terminal is connected through the wire 176 with the armature and winding of a slow acting relay 177 which is connected through wires 178, 179 and 180 with wire 174. The inner contact for the armature of relay 177 is connected by wire -181 through the field winding of relay 182 with wire 174. The outer contact of relay 177 is connected by wire 183 through the field winding of solenoid 167 with wire 179. Terminal of switch 160b is connected by wire 185 with the contacts of relay 182. The armature of relay 182 is connected by wire 186 with a contact 187. A contact 188 is connected by wire 189 with the eld winding of the solenoid 159 which in turn is connected by wire 190 with wire 180. The contacts 187 and 188 are bridged by a conductor 191 carried by the armature of a solenoid 192, the field winding of which is connected to the wire 186 and also to the wire 174. A contact 193 is connected by a wire 194 with the wire 185 and a contact 195 is connected by wire 196 with the armature and field winding of a relay 197, the field winding being connected by a` wire 198 with the wire 174. A conductor 199 carried by the armature of the solenoid 192 is adapted to bridge the contacts 193 and 195. AThe contact of relay 197 is connected by wire 200 with the eld winding of solenoid 201 which in turn is connected by wire 202 with wire 174. kA manually operable switch 203 is provided between wire 185 and wire 200. The armature of a relay 204 is connected to the wire 185 and the contact for this relay is connected to the wire 200. The field winding of the relay 204 is connected through relays not shown with the photoelectric cell 205 shown in Fig. 27.
Figs. 1 to 17 show the above described apparatus at rest, the bar 28 being arranged in the position shown in Fig. 4, the valve 88 being in the position shown in Fig. 5, the valves 150 and 151 being closed, the switch 160 being open and the various switches, relays of the electric circuit and the valves of the oil circuit being in the positions shown in Fig. 19.
With the rotor of the separator operatinglat proper speed the switch 160 is closed to start the cycle of operations of the device. The movable contacts 164 and 165 being in engagement with the stationary contactsy 170 and 172, current is supplied to the torque motor in such way as to tend to move the valve '152 into closed position but as the valve is already closed there is no change in the position thereof. Current passes through the mercoid switch 132, the armature and outer contact of relay 177, and field winding of solenoid 167. Energization of the solenoid causes actuation of its armature to lift contacts 164 and 165 away from contacts 170 and 172 and bring contacts 164 and 165 into engagement with contacts 169 and 171. Thereupon, the motor 156 is oppositely energized and turns the valve 150 into open position, thereby permitting iiow of liquid mixture through the pipe 21 into the rotor of the separator. Simultaneously with the closing of the circuit just described a second circuit is closed through the field winding of relay 177. The relay 177 is slow acting and is so timed that after a predetermined period it moves its armature out of engagement with the outer contact and into engagement with the inner contact, thus opening the circuit through the field winding of solenoid 167 and closing another circuit 'through eld winding of solenoid 182. The solenoid 167 is thereby de-energized and its armature drops down to return the contacts 164 and 165 into engagement with contacts 170 and 172, thereupon the motor 156 is reversed to close the valve 152. The relay 182 is slow acting and is so timed that it does not actuate its armature for a predetermined period, during which period the cake deposited on the interior of the rotor is dried. Engagement of the armature of relay 182 with its contact closes a circuit through contact 187, bridge 191, contact 188 and field winding of solenoid 159. The solenoid 159 is therebyv energized and its armature is pulled against the action of the spring 158 to open valve 153, thereby supplying wash water through the pipe 2 1 to the rotor. Also a circuit is simultaneously closed through the field winding of solenoid 192. The solenoid 192 is slow acting and is properly timed to operate after a predetermined period, during which the wash wateris supplied to the rotor. Lifting of the armature of relay 192 disengages the bridge 191 from the contacts 187 and 188 thereby opening the circuit through the solenoid 159 to de-energize the same and permit the spring 158 to return the valve 153 tol closed position. At the same time, the bridge 199 is brought into engagement with the contacts 193 and 195 thereby closing a circuit through the field winding of relay 197. The relay 197 is slow acting and is timed to operate only after a predetermined period during which the washed cake in the rotor is again dried. Lifting of the armature of the relay 197 closes a circuit through the field Winding of solenoid 201. Energization of the solenoid 201 causes the same to move its armature to the left, thereby actuating the piston 94h of the valve 94.
Before actuation of the piston 94h, the valve 94 was so set that oil was owing from pipe 86 through valve 88, pipe 89a, valve 92, pipe 93, valve 94, pipe 93o, valve 58 and pipe 93e to pipe 91, the valve 92 being held open by engagement 120 of the plate 78 with the thimble 92d and the valve 58 being held open by engagement of the rack 46 with the stem 58e (Fig. 20). Energization of the solenoid 201 moves the piston 94h into the position shown in Fig. 21, thus closing 125 off pipes 93e from pipe 93 and putting pipe 93h into communication with pipe 93. Oil thereupon flows into the right hand end of cylinder 52 and moves piston 51 to the left, (Fig. 22), the oil already in the cylinder being discharged, through 130 pipe 93e, valve 94 and pipe 93a into pipe 91. Movement of the piston 51 to the left draws the rack 46 to the left, thereby permitting valve 58 to close and actuating the mercoid switch 132 to open the circuit of which it is a part, thereby 1.35 de-energizing relay 177 and permitting its armature to move from engagement with the inner contact into engagement with the outer contact, thereby opening the circuit through solenoid 182. De-energization of solenoid 182 permits its armature to become disengaged from its contact, thereby opening the circuit through solenoid 192. De-energization of solenoid 192 permits its armature to drop to disengage the bridge 199 from the contacts 193 and 195, thereby opening the circuit through solenoid 197. Deenergization of solenoid 197 permits its armature to move out ofengagement `with its contact. thereby opening the circuit through solenoid 201 and de-energizing the same. Movement of the 150 operation is identical with the control system previously described.
In Fig. 27 there is disclosed an automatic control for setting in operation the discharging mechanism should the rotor become unbalanced due to an uneven layer of deposit. A plate 236 is linked to the frame of the centrifugal `and leads into a housing 237. The housing is mounted on an independent foundation. In one end of the housing there is provided a source of light 238 and in the other end of the housing there is pro-- vided a photo-electric cell 239. Between the source 238 and the photo-electric cell 239 there is provided a partition 240 having an aperture. The
plate 236 also has an aperture, the arrangement of these apertures being such that normally they are out of register. However, should the centrifugal begin to vibrate due to an unbalanced condition, the plate 236 will be moved suflicently to bring its aperture into register with the aperture in the partition 240 therebypermitting light to pass from the source 238 to the photo-electric cell 239. The photo-electric cell 239 is connected to a relay 241 which in turn is connected to the iield windng of solenoid 204. When light falls on the photo-electric cell 239 the solenoid 204 is energized, thereby causing its armature to be moved into engagement with its cont-act and closing the circuit through solenoid 201 to set the discharge mechanism in operation.
The switch 203 may be manually operated at any time to set in operation the discharging mechanism. Actuation of this switch closes the circuit through the solenoid201 to effect actuation of the control member 94h of the Valve 94.
Modifications may be obvious to those skilled in the art and I do not therefore Wish to be limited except by the scope of my sub-joined claims as interpreted in the light of the generic spirit of my invention.
What I claim is:
1. In combination, a rotor, a tool holder mounted for rotation and reciprocation axially of said rotor, means for effecting reciprocation and rotation of said holder, means controlled by linear and rotary movement of said holder for determining the direction of linear movement, and means actuated bylinear movement of said holder for controlling the rotation thereof.
2. In combination, a rotor, a tool holder` mounted for rotation and reciprocation axially of said rotor, means for effecting l'near and rotary movement of said holder, means actuated by said holder at the end of its inward stroke for reversing its direction of movement. means actuated by said' holder at the end of its outward stroke for effecting rotation of said holder, and means'actuated by rotation of said holder for reversing the direction of linear movement of said holder.
3. In combination, a rotor, a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic means for effecting reciprocation of said holder, a valve for controlling the direction `of linear movement of said hol-der, means actuated by said holder for effecting rotation thereof at one end of its stroke, means actuated by rotation of said holder to effect actuation of said valve to cause reverse linear movement of said holder and means actuated by said holder at the end of its reverse stroke to reverse said valve.
4. In combination, a rotor, a tool holder mounted for rotation and reciprocation axially of said'rotor, means for effecting linear and rotary movement of said holder, means actuated by said holder at one end of its stroke to reverse the direction of linear movement of the holder, means actuated by said holder at the opposite end of its stroke for effecting rotary movement of said holder, means actuated by rotary movement of said holder for effecting linear movement ofthe holderI in the first direction, and means actuated by said holder after a predetermined number of strokes for rendering inoperative said first named means.
5. In combination, a rotor, a tool holder mounted for rotation and reciprocation axially of said rotor, means for effecting linear and rotary movement of said holder, means actuated by said holder at one end of its stroke to reverse the direction of linear movement of the holder, means actuated by said holder at the opposite end of its stroke for effecting rotary movement of said holder, means actuated by rotary movement of said holder for effecting linear movement of the holder in the rst direction, and means for periodically supplying to said rotor a supply of mixture to be treated.
6. In combination, a rotor, a tool holder mounted for rotation and reciprocation axially of said rotor, means for effecting linear and rotary movement of said holder, means actuated by said holder at one end of its stroke to reverse the direction of linear movement of the holder, means actuated by said holder at the opposite end of its stroke for effecting rotary movement of said holder, means actuated by rotary movement of said holder for effecting linear movement of the holder in the rst direction, means for supplying liquid to be treated to said rotor periodically and over a predetermined period, and means for subsequently supplying wash water to said rotor after a predetermined interval and for a predetermined period.
7. In combination, a rotor, a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic means for effecting reciprocation of said holder, a valve for controlling the direction of movement of saidholder, means controlled by said holder for rotatingthe same at the outward end of its stroke, means operable by rotation of said holder toactuate said valve 'to cause inward movement of theholder. and
draulic means for rotating said holder, a second y valve for controlling the direction of rotation of said holder, automatic means for actuating said second valve, means actuatable by said holder for controlling flow through said second valve. means operable by rotation of said holder to actuate said first valve to cause inward movement of the holder, means operable by inward movement of said holder to actuate said first valve to cause reverse movement of said holder. and means operable by said holder after predetermined rotation thereof for reversing said second valve.
9. In combination, a rotor, a tool holder, hydraulic means for rotating said tool holder and reciprocating the same axially of said rotor, valve means for rendering said hydraulic means operative or inoperative, a pipe extending into a supply of mixture to be treated, a second valve for connecting said pipe with a supply of wash water, automatic means -for openingsaid first valve and closing the same after a predetermined period, opening said second valve after a second predetermined period and closing the same after a third predetermined period and after a fourth predetermined period actuating said valve means to render said hydraulic means operative, and means operable by said holder after a predetermined number of strokes for actuating said valve means to render said hydraulic means inoperative.
10. In combination, a rotor, a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic means for rotating said holder, hydraulic means for reciprocating said holder, valve means operable by reciprocation of said holder for controlling said rst hydraulic means, and valve means operable by rotation and reciprocation of said holder for controlling said second hydraulic means.
11. In combination, a rotor, a tool holder mounted for rotation. and reciprocation axially of said rotor, hydraulic means for rotating said holder, hydraulic means for reciprocating said holder, valve means for rendering said hydraulic means operative or inoperative, valve means operable by reciprocation of said holder for controlling said first hydraulic means, valve means operable by rotation and reciprocation of said holder for controlling said second hydraulic means, a pipe extending into said rotor, a valve connecting said pipe with a supply of mixture to be treated, a second valve connecting said pipe with a supply of wash water, automatic means for opening the rst valve and closing the same after a predetermined period, opening the second valve after a second predetermined period and closing the same after a third predetermined period and after a fourth predetermined period actuating said rst named valve means for rendering said hydraulic means operative.
12. In combination, a rotor, a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic means for rotating said holder, .hydraulic means for reciprocating said holder, valve means for rendering said hydraulic means operative or inoperative, valve means operable by reciprocation of said holder for controlling said first hydraulic means, valve means operable by rotation and reciprocation of said holder for controlling said second hydraulic means, a pipe extending into said rotor, a valve connecting said pipe with a supply of mixture to be treated, a second valve connecting said pipe with a supply of Wash Water, automatic means for opening the first valve and closing the same after a predetermined period, opening the second valve after a second predetermined period and closing. the same after a third predetermined period and after a fourth predetermined period actuating said irst named valve means for rendering said hydraulic means operative, and means operable by said holder after a predetermined number of strokes for actuating said valve means to render said hydraulic means operative.
'13. In combination, a rotor, a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic means for reciprocating said holder, a valve for controlling the direction of movement of said holder, hydraulic means for rotating said holder, a second valve for controlling the direction of rotation of said holder,
means for actuating said second valve, a third valve actuatable by said holder for controlling flow through said rst and second valves, means operable by rotation of said holder to actuate said rst valve to cause inward movement of the holder, means operable by inward movement of said holder to actuate said first valve to cause outward movement of said holder, and means operable by said holder after predetermined rotation thereof for reversing said second valve.
14. In combination, a rotor, a tool holder mounted for rotation and reciprocation axially 'of said rotor, hydraulic means for reciprocating said holder, a valve for controlling the direction of movement of said holder, hydraulic means for rotating said holder, a second valve for controlling the direction of rotation of said holder, means for actuating said second valve, a selfclosing valve for controlling flow through said rst and second valves, means carried by said holder for opening said last named valve at the end of an outward stroke, means operable by rotation of said holder to actuate said first valve to cause inward movement of the holder, means operable by inward movement of said holder to actuate said rst valve to cause reverse movement of said holder, and means operable by said holder after predetermined rotation thereof for reversing said second valve.
15. In combination, a rotor, a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic means for rotating said holder, hydraulic means for reciprocating said holder, valve means controlled by reciprocation and rotation of said holder for determining the direction of reciprocation thereof, valve means for controlling the direction of rotation of said holder, Arneans controlled by said holder for rendering said rst hydraulic means operative or inoperative, and valve means actuatable by said hblder after a predetermined number of strokes to render said second hydraulic means operative.
16. In combination, a rotor, a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic means for rotating said holder, hydraulic means for reciprocating said holder, valve means controlled by reciprocation and rotation of said holder for determining the direction of reciprocation, valve means for controlling the direction of rotation, valve means controlled by reciprocation of said holder for rendering both said hydraulic means operative or inoperative, means to actuate said second valve means to produce rotation of said holder in one direction, and means actuatable by said holder after a predetermined number of strokes for reversing said valve means.
17. In combination, a rotor, a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic means for rotating said holder, hydraulic means for reciprocating said holder, valve means controlled by reciprocation and rotation ofvsaid holder for determining the direction of reciprocation, valve means for determining the direction of rotation of said holder, valve means controlled by said holder for alternately rendering each of said hydraulic means operative and the other hydraulic means inoperative, vmeans for actuating said second valve means for causing rotation of said holder in one direction, and means actuated by the holder after-a predetermined number of strokes for reversing said second valve means.
18. In combination, a rotor, a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic means for rotating said holder, hydraulic means for reciprocating said holder, a valve controlled yby reciprocation and rotation of said holder for determining the direction of reciprocation, a second valve for deter'- mining the direction of rotation of said holder, a third valve controlled by said holder for pre,- venting flow through either said first or second valve, means for actuating said second valve to cause rotation of said holder in one direction, means actuated by said holder after a predetermined number of strokes for reversing said second valve and a fourth valve controlled by said first hydraulic means for by-passing the actuating fluid around both said hydraulic means.
19. In combination, a rotor, a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic means for rotating said holder, hydraulic means for reciprocating said holder, a valve controlled by reciprocation and rotation of said holder for determining the direction of reciprocation, a second valve for determining the direction of rotation of said holder, a third valve controlled by said holder for pre- 'venting fiow through either said first or second valve, means actuated by said holder after a predetermined number of strokes for reversing said second valve, a fourth valve controlled by said first hydraulic means for by-passing theactuating fiuid around both saidI hydraulic means, a pipe extending into said rotor, a fifth valve connecting said pipe with a supply ofvmixture to be treated, a sixth valve connecting said pipe with a supply of wash water, and automatic means for opening said fifth valve and closing the same after a predetermined period, opening the sixth valve after a second predetermined period and closing the same after a third predetermined eriod and after a fourth predetermined period actuating said second valve to causerotation of said holder from a position of rest.
20. In combination, a. rotor, a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic means for rotating said holder, hydraulic means for reciprocating said holder, a valve c ontrolled by reciprocation and rotationof said holder for determining the diy rection of reciprocation, a second valve for de` termining the direction of rotation of said holder, athird valve controlled by said holder for pre venting flow through either said first or second valve, means actuated by said holder after a predetermined number of strokes for reversing said second valve,v a fourth valve controlled by said ,rst hydraulic means for by-passing the actuating fiuid around both said hydraulic means, a
21. In combination, a rotor, a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic means vfor rotating said holder, hydraulic means for reciprocating said holder, a valve controlled by reciprocation and rotation of said holder for 'determining the direction of `reciprocation, a second valvev for determining the direction of rotation of said holder, a third valve controlled by said holder for preventing fiow through either said first or second valve, means actuated by said holder after a predetermined numberof strokes for reversing said second valve, a fourth` valve, controlled by said first hydraulic means for by-passing the actuating fluid around both said hydraulic means, a pipe extending into said rotor, a fifth valve connecting said pipe with a supply of mixture to be treated, a sixth valve connecting said pipe with a supply of wash-water,.electrical means for opening said fifth valve and closing the same after a predetermined period, opening the sixth valve after a second predetermined period and closing the same after a third predetermined period and after a. fourth predetermined period actuating said second valve to cause rotation ofsaid holder from a position of rest, and a switch controlled by said first hydraulic means for effecting energization and de-energization of said electrical means.
22. In combination, a rotor, a tool holder mounted for rotation and reciprocation axially of said rotor, hydraulic mans for rotating said holder, hydraulic means for reciprocating said holder, a yvalve controlledl by vreciprocation and rotation of said holder for determining the direction of reciprocation, a second valve for determining the direction of rotation of said holder, a third valve controlled by said holder for preventing flow through either'said first or second valve, means actuated by said holder after a predetermined number of strokes for reversing said second valve, a fourth valve controlled by said first hydraulic means for by-passing the actuating uid around both said hydraulic means, a pipe extending into said rotor, a fifth valve connecting said pipe with'a supply of mixture to be treated, a sixth valve connecting said pipe with a supply of wash-water, electrical means for opening said fifth valve and closing the same after a predetermined period,vopening the sixth trical means, and means responsive to the vibration of said rotor -for energizing the means for actuating said second valve.
23. In combination, a rotor, a tool holder Imounted for rotation and reciprocation axially of said rotor, hydraulic means for rotating said' holder, hydraulic means for reciprocating` said holder, a valve for determining the direction of reciprocation, lugs carried by said holder, a slide engageable by said lugs, linkage between saidlmeans 'for reversing said second valve after a 'predetermined number of strokes of said holder.
LEO D. JONES.
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2658620A (en) * 1948-03-19 1953-11-10 Sharples Corp Separation of liquid from solids
US2708035A (en) * 1949-06-14 1955-05-10 Western States Machine Co Centrifugal discharger mechanism
US2755991A (en) * 1952-08-08 1956-07-24 American Tool & Machine Compan Discharger shoe apparatus for centrifugal separator
US3038611A (en) * 1957-05-08 1962-06-12 Ametek Inc Centrifugal separators
US3092575A (en) * 1959-12-09 1963-06-04 Baker Perkins Inc Centrifugal machine stripper knife and controlling mechanism
US3338418A (en) * 1963-02-23 1967-08-29 Beteiligungs & Patentverw Gmbh Automatic readjusting and feeding device for a hydraulically operated scraping device in a peeling centrifuge
US3339733A (en) * 1965-03-29 1967-09-05 Western States Machine Co Centrifugal discharger mechanism
US4639320A (en) * 1985-04-05 1987-01-27 United Coal Company Method for extracting water from solid fines or the like
US4640770A (en) * 1985-04-03 1987-02-03 United Coal Company Apparatus for extracting water from solid fines or the like
US20210316235A1 (en) * 2019-11-18 2021-10-14 Lg Chem, Ltd. Pressurizing centrifugal dehydrator

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2658620A (en) * 1948-03-19 1953-11-10 Sharples Corp Separation of liquid from solids
US2708035A (en) * 1949-06-14 1955-05-10 Western States Machine Co Centrifugal discharger mechanism
US2755991A (en) * 1952-08-08 1956-07-24 American Tool & Machine Compan Discharger shoe apparatus for centrifugal separator
US3038611A (en) * 1957-05-08 1962-06-12 Ametek Inc Centrifugal separators
US3092575A (en) * 1959-12-09 1963-06-04 Baker Perkins Inc Centrifugal machine stripper knife and controlling mechanism
US3338418A (en) * 1963-02-23 1967-08-29 Beteiligungs & Patentverw Gmbh Automatic readjusting and feeding device for a hydraulically operated scraping device in a peeling centrifuge
US3339733A (en) * 1965-03-29 1967-09-05 Western States Machine Co Centrifugal discharger mechanism
US4640770A (en) * 1985-04-03 1987-02-03 United Coal Company Apparatus for extracting water from solid fines or the like
US4639320A (en) * 1985-04-05 1987-01-27 United Coal Company Method for extracting water from solid fines or the like
US20210316235A1 (en) * 2019-11-18 2021-10-14 Lg Chem, Ltd. Pressurizing centrifugal dehydrator
US11833458B2 (en) * 2019-11-18 2023-12-05 Lg Chem, Ltd. Pressurizing centrifugal dehydrator

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