US1600505A - Control mechanism - Google Patents

Control mechanism Download PDF

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Publication number
US1600505A
US1600505A US504801A US50480121A US1600505A US 1600505 A US1600505 A US 1600505A US 504801 A US504801 A US 504801A US 50480121 A US50480121 A US 50480121A US 1600505 A US1600505 A US 1600505A
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US
United States
Prior art keywords
piston
controlling
valve
port
cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US504801A
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English (en)
Inventor
David H Hunter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sullivan Machinery Co
Original Assignee
Sullivan Machinery Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sullivan Machinery Co filed Critical Sullivan Machinery Co
Priority to US504801A priority Critical patent/US1600505A/en
Priority to GB25220/22A priority patent/GB186905A/en
Priority to FR556574D priority patent/FR556574A/fr
Priority to DES60952D priority patent/DE412842C/de
Application granted granted Critical
Publication of US1600505A publication Critical patent/US1600505A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F1/00—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped
    • F04F1/06—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped the fluid medium acting on the surface of the liquid to be pumped

Definitions

  • My invention relates to control mechanisms and more particularly to control mechanisms for providing timed operation o1' pumping mechanism controlled thereby.
  • An object of my invention is to provide an improved controlling mechanism. Another object of my invention is to provide improved control mechanism for providing' adjustable timing of the mechanism controlled thereby. A further object of my invention is to provide improved control mechanism controlling the supply and interruption of flow of power medium to a pumping mechanism controlled thereby. Another object o1 my invention is to provide an improved control mechanism adapted automatically and continuously to control the roperation of pumping mechanism controlled thereby. Further objects of my invention will hereinafter appear.
  • Fig. 1 is a view in elevation of the illustrative form of my improved control or timing mechanism employedv in connection with a displacement pumping system.
  • Fig. 2 is a plan view on an enlarged scale of my improved control mechanism.
  • Fig. 3 is an enlarged elevation of my iinproved coiitrol mechanism per se showing the parts in the saine relative position as shown .in Fig. 1. 4
  • Fig. 4 is an elevation of the mechanism shown in Fig. 3, the mechanism being viewed as it turned through 90 about avertical axis.
  • Fig. 6 is a vertical longitudinal section through the power cylinder of my control is a section on an enlarged scale 5-5 of mechanism,pthe view being taken on the line 6-6 of Fig. 4. Y
  • Fig. 7 is a vertical longitudinal section on the line 7-7 of. Fig. 4, showing details of construction of the timing element perse forming a portion of my timing or control mechanism.
  • i p v For purposes of illustration have shown my improved timing mechanism arranged for use in connection with a displacement pumping system of a Well known form.
  • a compressor 1 supplies pressure fluid to a receiver 2 fromwhich by way of apipe 3 the fluid is adapted to be led to my improved control mechanism which is generally designate-d 4. Under the control of this mechanism the lluid is distributed byy check valves 12 and 13 to a discharge line 14.
  • valve casingv 16 By means of a valve mechanism best shown in Fig. 5, pressure fluid supplied from line 8 is conducted to a valve casingv 16 cooperating with and forming a part of my improved timing mechanism. indicated, the casing 16 communicates by pipes 5. and 6 (see Fig. 1) with the displace- As previously ment tanks 7 and 8. In alinement with the y supply pipe 3 is larranged an exhaust pipe 17. lVithinthe housing 16 is arranged a bore whichniay be conical or cylindrical as prefererd, this bore being designated 18 and communicating by passages 19 and 2O respectively with fluid pressure supply line 3 and the vent line 17.
  • the bore 18 also cominunicates by passages 21 and 22, which are disposed both to one side of the plane including the axis of the valve and perpendicular to a line drawn between the inlet and discharge openings19 and 20,witli the lines v5 and 6 respectively. Attention is directed at this time to the fact that the passage 19 is of smaller flow area than the passages 21 and 22. ⁇ The purpose of this will be shortly explained.
  • valve member 23 Rotatably mounted within the bore 18 is a valve member 23 which is shaped to accurately fit said bore and which is cut away on opposite sides to provide flow passages 24 and Y25 adapted in opposite positions of the f valve to connect the ports21 and 22 alter- Y nately with the ports 19 and 20.
  • Fig. r5 it will be apparent that as the valve moves from a position in which either of the por-ts 21 or 22 is connected with the being noted that at the same time the pas-- sage 19 also communicates with said passage.
  • valve 23 is herein provided with a square shank 26 (see Fig. upon which is secured an operating lever 27, although it will be obvious that the valve may be operatedby any other kind of oper-ating member.
  • yPivotally connected to vone end of the lever kor arm 27 is a. rod 2S extending in a' substantially verticalv direction and having-secured thereon adjustable lock nuts 29 and 30 kadapted to serve as abutments or collars for the rod 23 and to be engaged by means hereinafter described.
  • actuating and timing mechanism comprising together with structure later described a cylinder 31 in which a piston 32 is vertically reciprocable, said piston 'being adapted to raise a weight 33 upon upward movement thereof and to have its downward movement assisted by said weight.
  • a dash-pot cylinder 36 Arranged parallel to the cylinder 31 is a dash-pot cylinder 36 in which a dash-pot piston 37 is reciprocable.
  • the dash-pot piston 37 has a piston rod 38'which is secured by nuts 39 to the junction of the arms of the L-shaped crosshead 34. It will be noted that the piston 32 is secured to said l.- shaped cross head at a point about midway of the lengt-h of the larger arm ofy the latter.
  • the dash-pot cylinder 35 is provided in a lateral wall thereof with a longitudinally extending passage 41 communicating with the bore of the cylinder by four o'g )enings arranged respectively; one relatively near the top of the cylinderI and designated 42, one practically at the bottom, designated and a pair about mid-way between the ports 42 and 43 and separated by -a space in the illustrative form shown somewhat llonger than the thickness of the piston 37, these last holes being designated 44 and 45 of which the'port 45 is the lower.
  • Intermediate between the ports 44 and 45 is a screw 46 which is adapted to be more or less projected into the passage 41 and so -to limit the rate of flow through that portion of the passage in which the screw is disposed. "[t will be evident that the dash-pot is filled with liquid to a point above the upper port 42.
  • the piston 37 may be moved quite freely upward until the port 45 is closed, the liquid, herein oil, simply bypassing through the port 45, passage 41 and port 43. After closure of the port 45 all liquid passing from the upper to the lower side of the piston 37 must pass by the screw 46 and accordingly there is a considerable retardation which may be varied b vadjustment of the screw 46. lhen the piston has passed above the port 44, its movement may again take place quite freely as then liquid passing through the port 42 and down passage' 41 may flow in .behind the piston through the port 44. It willy thus be seen that the piston may move quite rapidly adjacent the lopposite ends of its travel, but for a space near the middle .of its travel it is compelled to move quite slowly. During downward movement of the piston it ⁇ can move rapidly until it reaches the port- 44, must move slowly until the port 45 is opened by the upper surface of the pist-on, and thereafter. may move rapidly until it reaches substantially the bottom of its cylinder.
  • a valve ofthe ordinary threeway type is arranged in a fluid pressure supply pipe. 47 leading to av port 43 in the bottom ofthe cylinder 31, .thisvalve being adapted in opposite .positions to supply air beneath the piston 32, and, having cut oill said air supply, to vent the bottom of the cylinder 31.
  • this valve is of the ordinary three-way type no specific illustration is believed requisite.
  • the valve is provided with an operating arm or lever 49 to one end of weich is connected a spring 50, the latter at its other end being connected toa vertically reciprocable rod 5l.
  • the rod 51 is reciprocable in guides 52 secured to the side. of the dash-pot cylinder and these guides likewise serve as stops to be engaged by the other end of t-he lever 49, to determine the stationary positions of the valve. :lt will vbe clearly evident that as therod 51 is raised the free end of the spring 50 will be moved upward until the tension is along a line making an angle with the longitudinal axis of the member 49 and lyingl above the latter. [is a result the valve Awill be .sharply 4thrown to an opposite position from that shown in Fig. 4, i. e.
  • the movements of the feo rod 51 are determined by the engagement with adjustable collars or abutments 5 4 and thereon by one branch, herein the shorter one, of the angular or L-shaped crosshead 34, it being evident from an inspectionof Fig. 4 that the crosshead may move upward a considerable distance before beginning to move the valve 32 previously described, and causing the latter -to be thrown onlyadjacent the upper end of its stroke.
  • the veX- tremity ofthe other arm of the L-shaped crosshead is perforated and through it eX- tends the rod 28. As al result the valve 23 will be moved to its opposite positions by movements of the crossliead 34.
  • valve 23 By reason of the relatively rapid movement of the piston32 as controlled bythe dash-pot adjacent the ends of its travel, it will be evident that the valve 23 will be thrown quite rapidly, while beiner held stationary for a consicerable perioc during the travel of the piston 32 along the middle portions of its pei-1li. f
  • JAccontrolling mechanism comprising a valve, power actuating vmeans therefo'r, and
  • a liquid dash pot adapted to control said power means so that said valve is opened or closed relatively fast.
  • a controlling mechanism comprising power actuated means, valvel mechanism adapted to be actuated thereby and to control power flow to said means and another supply of fluid, and means, including liquid control means adapted to control said 'power means, whereby said supply and power flow vis adapted to be sequentially influenced relatively fast.
  • a self-contained controlling mechanism comprising a movable power actuated member, trigger mechanism for controlling power flow thereto, and means movable with said trigger mechanism.
  • a self-contained controlling mechanism comprising a power actuated member movable in opposite directions,trigger mechanism for controlling power flow thereto, and means movable with said member and adapted to initially actuate said trigger mechanism in either direction of movement thereof.
  • a controlling member movable alonga predetermined path and in opposite positions thereof conlsaid member and adapted to initially actuate 1w trolling a mechanism controlled thereby,
  • a controllingmember movable between opposite positions to control the mechanism controlled 130 thereby, means for supplying power ,to said member to effect opposite movements thereof, means associated with said member vfor controlling said lirst mentioned means, and means operative Vonly during mid-travel of said member and associatedWith .sa-id member for controlling the rate of movement thereof.
  • a controlling mechanism acylinder, a piston reciprocable therein, means forl controlling the supply and exhaust of fluid to said cylinder to governthe movements of said piston, a ,controlling membercontrolled .by movements of said piston, and a dash-.pot controlling the rate Yof movement of said piston and retardingthe Asame to a maximum degr-ee adjacent the ⁇ mid-travel thereof While permitting relatively uniform retardation in Athe initial portions of its travel said first mentioned means being governec by movements of said piston.
  • a controlling mechanism comprising parallel cylinders,I pistons movable in saidA cylinders and connected together, mea-ns for supplying pressure fluid to one of said cylinders Yto move its piston, means for retarding the lmovement of said other piston, and
  • a controllin@ mem-ber a piston, Va cylinder in which said .piston is reciprocable, operating connections between saidpiston and said control member, and liquid dash pot means associ ated 4With said piston for retarding movements of said piston at a time vvhen'said operating connections are idle and inopera-A tive to retard movement of said piston when said operating connections are functioning.
  • Controlling mechanism comprising a controlling member, means for moving the same through a given cycle, 'said member at spaced points in said cyelewgoverningthe operation of mechanism controlled 'thereby, and'ineans cooperating With said member and regulating its rate of movement ⁇ during the middle portion of its travel between said points, which means exerts no influence onits travel atother rportions of said Cycle.
  • Controlling mechanism comprising a controlling member, means for moving'pthe same through a givencyclmsaid meansat predetermined positions in said rcyclelgov- 4crning the operation of mechanism controlled thereby, and means rcooperating With said lmember to regulate its rate Y"of movei vment duringfthe middleportionofits travel includinga liquid dashpot.
  • Controlling mechanism comprising a controlling member, means for moving the same through'a given cycle, said meansat predetermined positions in said cycle .gov-
  • Controlling mechanism comprising a controlling member, means for moving the same through a lgiven cycle, said member at vspaced points in said cycle governing the operation of mechanism controlled thereby, ineans'for regulating the rate of movement of said member including a liquid Vdash :pot comprising a cylinder and piston and means forming a plurality of bypass passages arranged one adjacent either end of said cylinder and one near the middle of the cyliiider, and means for controllingV the rate of liow through said middle Abypass passage.
  • Controlling mechanism comprising a controllling ⁇ member, said member adjacentV the ends of its pathgoverning the operation of a mechanism controlled thereby, means for effecting opposite movements of saidv member, and means for controlling moven'ients of said member arranged parallel thereto' and comprising a .liquid dash pot.v A y i7;
  • vControlling mechanism comprising a vertical cylinder, 'aWeighted piston reciprocable therein, a Controlling valve operative to supply pressure to and tol eXliaustpressure ⁇ from a pair of tanks in alternate relation, valve means for controlling the supply and exhaust of pressure vfluid tosaid exhaust of fluid'to a mechanism toV be controlled, and means controlled by the reciprocation of'said piston for mechanically actuating said valves.
  • a controlling mechanism a controlling member ieciprocable in opposite directions by Agravity and by iiuidE pressure, and means for controlling the opposite -movements thereof including a vsingle dash pot cylinder, a piston therein, means con-k stituting abypass Iadjacent the bottom of the cylinder, a bypass adjacent the top of the cylinder and a'bypass adjacent the middle of the cylinder, said bypasses being so 'disposed that any movement the ,dash pot piston will occasion Huid lloW through at least one bypass, and means for regulating the rate of flow through one of said bypasses.
  • a controlling member reeiproeable in opposite directions by gravity and by fluid pressure
  • means for controlling the opposite move-4 ments thereof including a single dash pot cylinder', a piston therein, and means oonstituting a bypass adjacent the bottom of the lcylinder, a bypass adjacent the top of.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Reciprocating Pumps (AREA)
  • Filling, Topping-Up Batteries (AREA)
  • Hydraulic Motors (AREA)
US504801A 1921-10-01 1921-10-01 Control mechanism Expired - Lifetime US1600505A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US504801A US1600505A (en) 1921-10-01 1921-10-01 Control mechanism
GB25220/22A GB186905A (en) 1921-10-01 1922-09-18 Control mechanism
FR556574D FR556574A (fr) 1921-10-01 1922-09-27 Mécanisme de contrôle
DES60952D DE412842C (de) 1921-10-01 1922-09-29 Vorsteuerung fuer Druckluftfluessigkeitscheber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US504801A US1600505A (en) 1921-10-01 1921-10-01 Control mechanism

Publications (1)

Publication Number Publication Date
US1600505A true US1600505A (en) 1926-09-21

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ID=24007787

Family Applications (1)

Application Number Title Priority Date Filing Date
US504801A Expired - Lifetime US1600505A (en) 1921-10-01 1921-10-01 Control mechanism

Country Status (4)

Country Link
US (1) US1600505A (fr)
DE (1) DE412842C (fr)
FR (1) FR556574A (fr)
GB (1) GB186905A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3173379A (en) * 1961-05-11 1965-03-16 Cellular Products Co Means and method of pumping lightweight concrete
US3994082A (en) * 1974-01-04 1976-11-30 Pneuma International S.A. Air operated dredging apparatus
WO1981001246A1 (fr) * 1979-11-01 1981-05-14 Caterpillar Tractor Co Systeme de circulation sans pompe pour un liquide corrosif
US4323452A (en) * 1979-11-01 1982-04-06 Caterpillar Tractor Co. Pumpless flow system for a corrosive liquid
US5507601A (en) * 1988-09-19 1996-04-16 Mori-Gumi Co., Ltd. Method of transferring water with compressed air
US5520518A (en) * 1991-10-25 1996-05-28 Mori-Gumi Co., Ltd. Method of transferring fluent material with compressed gas
US6623248B1 (en) * 1998-12-14 2003-09-23 Merck Patent Gmbh System for conveying liquids without pulsing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE971085C (de) * 1951-11-25 1958-12-04 Helene Cornelius Geb Schroeder Verfahren zum Betrieb pressluftgesteuerter Tauchpumpen

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3173379A (en) * 1961-05-11 1965-03-16 Cellular Products Co Means and method of pumping lightweight concrete
US3994082A (en) * 1974-01-04 1976-11-30 Pneuma International S.A. Air operated dredging apparatus
WO1981001246A1 (fr) * 1979-11-01 1981-05-14 Caterpillar Tractor Co Systeme de circulation sans pompe pour un liquide corrosif
US4323452A (en) * 1979-11-01 1982-04-06 Caterpillar Tractor Co. Pumpless flow system for a corrosive liquid
US5507601A (en) * 1988-09-19 1996-04-16 Mori-Gumi Co., Ltd. Method of transferring water with compressed air
US5544983A (en) * 1988-09-19 1996-08-13 Mori-Gumi Co., Ltd. Method of transferring material from the bottom of a body of water
US5520518A (en) * 1991-10-25 1996-05-28 Mori-Gumi Co., Ltd. Method of transferring fluent material with compressed gas
US6623248B1 (en) * 1998-12-14 2003-09-23 Merck Patent Gmbh System for conveying liquids without pulsing

Also Published As

Publication number Publication date
GB186905A (en) 1924-03-18
DE412842C (de) 1925-04-28
FR556574A (fr) 1923-07-23

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