US2103141A

US2103141A - Ironing machine

Info

Publication number: US2103141A
Application number: US726602A
Authority: US
Inventors: Herbert C Bowen
Original assignee: Hydraulic Brake Co
Current assignee: Hydraulic Brake Co
Priority date: 1934-05-19
Filing date: 1934-05-19
Publication date: 1937-12-21
Anticipated expiration: 1954-12-21

Description

Dec. 21, 1937. H. c. BOWEN IRoNING MACHINE Filed May 19, 1934 6 Sheets-Sheet 1 INVENOR. b265597- C.' 50x/VEN ATTQRNEY 6 Sheets-Sheet 3 INVENToR.

. Mr/L 1 ATTORNEY Dec. 21, 1937.4 H. c. BOWEN IRONING MACHINE Filed May 19,' 1954 Dec. 21 1937. H. C. BOWEN 2,103,141

IRONING MACHINE l Filed May 19, 1934 6 Sheets-Sheet 4.

ATTORNEY De.21, 1937. H C BOWEN 2,103,141 l l IRONING MACHINE Filed May 19, 1934 6 Sheets-Sheet 5 IN VEN TOR. FT Z-Z- e u'. ,@5567 OW-/V -5 1N G 50 A TTORNEY De@ 21,1937. H. C. B'OWEN 2,103,141

IRONING MACHINE Filed May 19,l 1934 6 Sheets-Sheet 6 ATTORNEY Patented Dec. 21, 1937 IBONING MACHINE Herbert C. Bowen, Detroit, Mich., yassignor to Hydraulic Brake Company, Detr it, Mich., a l corporation of California Application May 19, 19.34, Serial No. 726,602

13 Claims.

for actuating one of the elements, and pressure,

producing means in the reservoir operatabiy connected tothe other ironing element and actuated thereby upon movement thereof into operative position to introduce an initial pressure in the system.

VAn object of the invention is to provide an ironing machine including cooperative ironing elements, one actuated by fluid pressure means' including means for creating an initial pressure in the system to move the element sov as to compensate for variations in the `thickness of thematerial or article upon which work isl to be performed. y A

Another objectof the invention is to provide ,an ironingmachine vincluding cooperative ironinggelements anda uid pressure means for actuating one o f the elements including means for creating an initial pressure in the system upon erative ironing elements and a duid pressure systern..` for actuating one of the elementsincluding. a reseryoir, a pistonmovable in the reservoirj for creating an initial pressure in the sylfstexn,v a pressure producing element supplied from the reservoir, and expansibieelements connected tov ther pressure producing element, and ya' 'valve associated with the pressure' producing Lelement for .45 relieving vpressure inthe system.

Another feature of theinvention Ais apair lof cooperative ironing element-sone actuated .byy a iluid pressure system and the Iother attached to a.

movablesupport arranged to swing "the element 5 into' and `from operative position, means for auto'- matically .locking the support upon moyementoi' the ironing 'elementinto operative position, and .means for. tripping the locking .means operable automatically upon release ,ofjpressure in the 55 iluid pressure system..v

- the electrical circuitior the machine.

Other objects and lfeatures of the invention will appear from the following description taken in connection with the drawings forming a part of this specification, and in which, l

Figure 1 is a cross-sectional view of an ironing machine embodying the invention;

Figure 2 yis a fragmentary view illustrating the actuating means for the head ofthe machine;

' Figure is a fragmentary view illustrating the linkage between the head and the actuating means i'or the head; v

Figure`4 is an enlarged detail view substantially on line 4-4, Figure 2;

Figure 5 is a sectional view substantially on line .5y-5, Figure l;

Figure 6 is va side elevation substantially on line 6 6, Figure 5;

llrgure '7 is a top plan view' of the buci; sup- DO i Figure 8 is a side elevation, partlyin section and partly broken away, illustrating the assembly of the viluid pressure means, the buck support, andthe buck;`

Figure 9 is an enlarged sectional view of one of the motors and guides for the buck; y f/ 25 Figure 10 is a top plan view 'of the iiuid pressure producing device; Figure 11 is a side elevation of the'iluid pressure producing device partly inv section;

Figure 12 is'a sectional view substantially on line |2'-i2, Figure 11;-

Figure 13 yis a sectional view substantially on line |'3-I3, Figure 10; and movement of the other element into-operative I vlili position.

A feature ofthe invention is a pair-of coop-l FigureV 14 is a diagrammatical illustration of :Referring to they drawings', 'Iii represents ,a frame including a. casting having a lsump i2 at one end anclv a hollowY vertical-column at its other'end.A A' sleeve.v I6, bolted or otherwise secured to theirame concentrically to the co1- umn I4, has fitted therein a column I8 providing the main support for'the frame, and secured to the frame are corresponding legs 20 for cooperation with the main support or column i8. It is V to be understood that other desirable means for supporting the frame'may be employed'.

A top 22 supported on the frame has an opening for the reception of the ucolumn I4, and a frustro-conical portion 24 extendingl upwardly 50 immediately abovethe sump I2, andthe frustrconlcal portion has an opening in its top, the object of which will hereinafter' appear. u, The top lalsohasthe conventional apron 26 concealingthe trame, l 66 A iluid pressure producing device 28 is suitably mounted in the sump I2. This device includes a casting comprising a reservoir 38 closed at its top as by a plug`32 having therein a two-way valve 34 controlling vents 36 to the atmosphere. Formed on the outer Wall of the reservoir adjacent the top thereof are ange's 38, providing a suitable mounting for a buck support to be hereinafter described, and formed in the Wall of the reservoir is a passage 48, the purpose of which,

will hereinafter appear.

A reciprocal piston 42 in the reservoir has a rod 48 extending downward through a bore 48 and a packing box 48 in the outer end of the bore, and attached to the rod is a clevis 58. The piston has a plurality of openings 52 providing communicaf tions between the respective ends of the reservoir, and positioned on the piston is a collapsible leakproof cup 54 held against displacement by a spring 56 interposed between the cup and the bottom of the reservoir.

Spaced

parallel cylinders

58 and 68 are formed in the base of the casting normal to the reservoir. The cylinder 58 has an inlet port 62 communicating with the reservoir; and a discharge port 68 communicating with a valve chamber 68 having therein a check valve 68 for control of a discharge port 18. A reciprocal piston 12 in the cylinder 58 has a reduced body portion providing in conjunction with the wall of the cylinder an annular chamber 14 communicating by way of the port 62 vwith the reservoir. The head of the piston has a plurality of ports 16 providing'communication between the chamber 14 and that portion of the cylinder forward of the piston, and a concentric extension 18.

A leak-proof cup 88, adapted to seatv on the head of the piston and close the port 16 during the compression stroke of the piston, has a concentric opening receiving the extension 18 with substantial clearance as indicated at 82, so that upon the retracted stroke of the piston uid may pass from the reservoir to the chamber 14, and thence through the port 16 past the cup 88 to that portion of the cylinder chamber forward of the piston. The cup is retained against displacement by a perforated disk 84 held on the extension 18 by a spring 88 interposed between the disk and the head of the cylinder. This spring also serves to return the piston to its retracted position. In the backof the piston is a/recess 88, and tted in the recess is'a sleeve 88 having a radial flange 82 adapted to seat on a ring 94 tted in a circumferential groove in the Wall of the cylinder. and a leak-proof cup 88 is clamped between the ange and the piston.

A shaft 88 journaled in a bearing |88 on the frame has secured thereto an adjustable operating lever |82 limited in its throw vby adjustable stops |84 and |88, and adjustably attached to the lever |82 is an operating handle |88. .The shaft has suitably secured thereto a cross-lever H8, and a thrustv pinl 2 pivoted to` one end of the lever ||8 is received by the recess 88 in the back of thev piston, and the lever ||8 has an olf-set bifurcated portionI II4, the purpose of which will hereinafter appear.

The cylinder 88 has a diaphragm 6 dividing the cylinder into two compartments ||8 and |28, and the diaphragm has a port |22 providing a communication between the compartments. The compartment |28 is closed as by a plug |24 and is provided with a port |28. A leak-proof cup |28 seated on the diaphragm within the compartment I 28 has an opening |38 of smaller diameter amarsi than the ports |22, and the cup is held against displacement by a spring' |82 interposed between the cup and the plug. y

'I'he compartment I8 has a port |34 providing a communication between the compartment and the reservoir, and the compartment is closed as by a plug |38 having a chamber |38 in its outer end. A valve |48 in the compartment has astern |42 extending through the plug |36 and the chamber |38. A leak-proof cup |44 is seated on the plug and heid against displacement by a relatively light spring |46 interposed between the cup and a flange on the head of the valve. The head of the valve has a reduced concentrical portion |48 adapted to abut the diaphragm H6 and an extension |58 adapted to enter the port |22 and to engage the periphery defining the opening in the cup |28 so as to completely seal the port |22.

A buck support |58 is bolted or otherwise secured to the flange 38 on the reservoir of the pressure producirm unit 28. This support includes an elongated receptacle having its edges rolled to lend strength and rigidity to the structure. As shown, the bottom of the receptacle is swedged as indicated at |88, and the swedged portion is provided with an opening for the reception of the upper end of the reservoir. Because of the swedged portion |68, the receptacle is lowered to substantially close the space between the bottom of the receptacle and the frustro-conical portion 24 on the top 22.

A uid pressure switch |88 is connected to the iltting |12. This switch is connected in a circuit |82 having a lamp |84 connected therein. The circuit |82 is tapped olf of a circuit .|86 having connected therein a heating element |88 and a rheostat |88. The circuit |82 is adaptable so that iluid upon entering the cylinder will be properly received by the piston. A leak-proof cup |88 on the head of the piston is retained 'against displacement by the extension |84 and an axial port through the piston is closed by a bleeder screw' |88, and a cap 288 tted on the back of the piston protects the bleeder screw.

A buck. 282 has dependent pins-1284 received by the guides |88 and |88, and pressure blocks portion 2I2 onv the column.

.pression stroke.

The ann has oppositely disposed horns 220 to which is attached a head 222 adaptable for cooperation with the buck 202. The arm 2|8 houses the electrical circuits |82 and |86; the lamp |84 in the circuit |82 is positioned in the arm centrally between the horns and immediately back of an opening having therein a colored glass insert 224 through which the light rays from the lamp may be projected; the heating element |88 and the rheostat |80 are encased in the head, and suitably secured to the arm between the horns is a rod 226 having on its free end a hand grip or knob 228 by means of which the head may be lowered into operative position.

The arm 2|8 has aninternal web 230 supporting antextension 232 of the arm. The lfree end of this extension projects into the column |4 and has secured thereto a case-hardened block 234, and formed in the extension 232 eccentrically to the pintle. is a notch 238. A lever 238 pivoted on the frame has on one rend a segment 240 on which the extension 232 rides as the head is moved into and from operative position, and this end of the lever. is adapted to engage the block 234 on the extension whenthe head s moved intol operative position. .Theother end of the lever 238 is arranged to engage a notch in the cross lever ||0, anda rod 242 connects the lever to the lever 238 eccentrlcally of its iulcrum, and a spring 244 is connected between the lever 238 and the frame. i

' A lever 246 fulcrumed on the frame is connected by a link 248 to the extension 232 of the arm 2|8.V As shown, the link 248 is received bythe notch 236 in thefextenson 232, and the lever 246 is connected by springs 250 toa bracket,4 252 .on the sump `i2, and bya spring 254 to one leg v of a bell crank leverA 256fulcrumed on a bracket 258 onv the sump |2and the other leg of,` the 4 bellcrank lever`256 is connected to the -clevis 50 on the rod 44 of the piston 52 in the reservoir 30; Assuming that the iiuid pressure system `is illled with liquid, `that the circuit |86 is connected to a suitable source of electrical supply, 4and that the head 222 of the machine is in elevatedposition, under. these circumstances, the operator places the work upon the buck 202 and lowers the head into operative position. As the head is lowered into operative position the extension 232 of the arm 2|8 travels on the segment 240, and whenk the head"'assumes the operative position the lever 238 engages the block 234 carried by the arm and effectively locks the head against movement. v

lli'his movement of the head is transmitted through the link 248 to the lever 248 't9 swing this lever on its pivot and this movement of vlever 246 is transmitted through spring 254 to bell crank lever 256 and rod 44 to the piston 42 in the reservoir to move the piston on its com.-

Upon the initial movement of the piston 42 the cup`64 carried thereby closes the lower end of the passage 40, and upon further movement of the'piston the iiuid in the reservoir is displaced through the port 62 into the chamber 14, thence through ports 16. past.

cup 80 into the cylinder 58 forward of the pistonl 12, thence through port 84into chamber 88 past the valve 68'and through conduit |18, coupling |12 and conduits |10 and |14 into the motor cylinders |82 and |84, resulting in actuation of the pistons |92 to raise the buck into engagement with the head. The distance travelled by the buck during this operation isdependent upon the thickness of the work,'and

to compensate for variations in the thickness of the work variation in the fluid pressure means is obtained by the introduction of the spring 254 in the linkage for actuating the fluid pressure means by movement of the head into oper ative position. v l l After the above described operation, the operator depresses they lever |02 to rock the shaft 98, and this movement of the shaft is transmitted by the arm ||0 on the shaft and thrust` pin ||2 connected thereto to the piston 12 to move the piston 12 on -its compression stroke. As thepiston 12 moves on its compression stroke, the fluid in' the cylinder 58 is displaced through port 64 into valve chamber 66, past the valve 68, thence through port 10, conduit |18, coupling |12 and conduits |10 and |14 into the mo'- tor cylinders |82 and |64, resulting in actuation of the pistons |82` and movement thereby of the f buck 202 against the head with sufiicient pressure to effectively iron the work. Upon attaining `the desired pressure in the system, the fluid pressure switch |80 is actuated to close the circuit |82 'and light the `lamp m s0- that'the opv erator may have a visual indication that adequate pressure is applied.

After completing the above'ldescribe'd opera-V tions the operator manipulates the leverl |02 to rock the shaft 88, and this movement vof 'the' shaft i l is transmitted to the arm |0 carried by the shaft and the thrust pin ||2 connected to the arm to release the force applied to the piston 12, whereupon the check valve68 closes and thepiston is returned to its retracted position under the infiuence of,.spring 86. As the piston Vreturns'to `its retracted` position iluid is`drawnv. from thel reservoir 30, through port 62 into the chamber 14, thence throughport 16, past the cup 80 into the cylinder 58 forward of the head of the piston to ill the chamber'ffor a subsequent operation.

After relieving' the applied force on the piston the arm I0 trips the valve |40 and opens' the'port ,i |22,-resulting in relieving pressure in the motor cylinders |82. and |84, followed by the return of the buck 202 to its normal position. Upon opening the port |22, the fluid isl returned from the motor cylinders |62 .and |64 throughthe conduits 4|10 and |14 to the coupling y|12 and con- ,duit |16 tothe valve chamber, and thence through port |34 to the reservoin Further movement of the shaft in the same direction is transmitted ,through the Varm I|0 and rod 242 to the lever 238 to disengage this lever from the extension 232 on the arm 2|8 and to engage the lever withvthe arml||0 to lock the arm I0 against movement so that the fluid pressure system cannot be operated.

Upon disengaging the lever 238 from the extension of arm 2|8, the springs 250 function to rock the b ell crank lever 246, and this movement ofthe bell crank lever is transmitted through the link 248 to the arm 2|8 to swing the head into elevated position. During this movement tension on'the spring 254 is released. whereuponl the spring 58 returns the piston 42 in the reservoir,30 l.

to its normal position. As the piston 42 returns 70 ydnentioned element to create the initial pressure,

to its normal position the cup Si thereon collapses and iiuid ows from the reservoir back of the piston through the ports 52, past the cup El into that portion of the reservoir forward of the piston, and when the piston is fully returned to its normal position the passage 40 is open so as to equalize the pressure of the iiuid in the reservoir.

Although this invention has been described in connection with certain specific embodiments, the principles involved are susceptible of numerous other applications that will readily occur to perysons skilled in the art. The invention is, therefore, to be limited only as indicated by the scope of the appended claims.

I claimz- 1. -An ironing machine comprising relatively movable ironing elements, a fluid pressure system for actuating one of the elements including means vfor producing pressure in the system, a member supporting the other element for movement into and from operative position, and means connecting the member to the pressure producing means for actuating the pressure producing means upon movement of the member to place the last mentioned element into operative position.

2. An ironing machine comprising relatively movable ironing elements, a fluid pressure system for actuating one of the elements including means for producing an initial pressure in the system and means for producing a greater pressure inthe system, a pivoted member supporting the other element for movement into and from operative position, means connecting the pivoted member to the means for producing an initial pressure for operation bymovement of the pivoted member to create the initial pressure and manually operated means for actuating the means for producing the greater pressure in the system.

3. An ironing machine comprising relatively movable ironing elements, a fluid pressure system for actuating one of the ironing elements including fluid pressure motors operatively connected to the element anda fluid pressurek device for delivering fiuid under pressure to the motors, and means for actuating the device by movement of the other ironing element into operative position.

4. An iro ing machine comprising relatively movable ii/drxiling elements, a nuid pressure system for actuating one of the ironing elements inf cluding a fluid pressure device and expansible elements operatively connected thereto and to one of the ironing elements, manually operated means for actuating the fluid pressure device, manually operated means for actuating the other ironing element, means for alternatively locking the actuating means for the uid pressure device and the last mentioned ironing element, andmeans for actuating the fluid pressure device by movement of the manually operated ironing element into operative position.

5; An ironing machine comprising a pair of relatively movable ironing elements, a fluid pressure systeml for actuating one of. the elements including means for producing an initial pressure in the system, means connecting the means' for producing the initial pressure to the other element for operation by movement of the last- 4and means for operating the system to create an ironing pressure between the elements.

6. An ironing machine comprising a head, means (or moving the head into and from operative position, means for locking the head in operarcaica ative position, a movablebuck cooperating with the head, expansible means for moving the buck to create anironing pressure between the head and the buck, a pressure producing means for supplying fluid under pressure to the expansible means, and means operable by movement of the head into operative position for actuating the pressure producing means to create an initial pressure in the expansible means, and manually operated means for actuating the pressure producing means.

.7. An ironing machine comprising a head, a buck for cooperation therewith, a' movable support for swinging the head into and from operative position, means for locking the head in operative position, a fluid pressure system for actuating the buck, a reservoir for supplying fluid to the system, means in the reservoir for creating pressure on the fluid therein, and means connecting the movable support to the means in the reservoir for creating pressure on the iluid so as to introduce an initial pressure in the system upon movement of the head into operative position.

8. An ironing machine comprising a head, a buck for cooperation therewith, a movable support for swinging the head into and from operative position, means cooperating with the support for locking the head in operative position, a iluid pressure System for actuating the buck including a. reservoir for supplying uid to the system, a piston in the reservoir for imposing pressure on the fluid therein, and linkage connecting the movable support to the piston for moving the piston on its compression stroke to introduce an initial pressure in the system upon swinging the head into operative position. y

9. An ironing vmachine comprising a head, a buck for cooperation therewith, a movable support for swinging the head into and from operative position, a fluid pressure system for actuating the buck including a pressure producing device, fluid pressure motors connected to the device and operatively connected -to the buck, actuating means for the device, and a lever engaging the movable support and the actuating means for the device operable to alternatively lock the support and the actuating means for the device against movement.

10. An ironing machine comprising a head, a buck for cooperation therewith, a movable support for swinging the head into and from operative position, a fluid pressure system for actuating the buck including a uid reservoir, a fluid pressure device receiving iluid from the reservoir,

-fiuid pressure actuated motors connected to the device and 'operatively connected to the buck, means for actuating the device, a piston in the reservoir for imposing pressure on the iiuid therein, linkage connecting the movable support to the piston for moving the piston on its compression stroke upon movement of the head into operative position, a lever adapted to alternatively engage the movable support and the actuating means for the device for alternatively locking the support and the actuating means for the device against movement.

l1. An ironing machine comprising a head, a buck for cooperation therewith, a movable support for moving the lead into and from operative position, a fluid pressure system for actuating the buck including a reservoir, a pressure-producing device receivingiluid from the reservoir,

nected to the buck, and means for actuating the pressure-producing device, a piston in the reservoir for creating pressure on 4the u'ld therein, linkage connecting the movable support to the piston for moving the piston on its compression stroke upon movement of the head -into operative position, a lever adapted to engage the movable support and the actuating means flor the pressure producing device for alternatively locking the support and the actuating means for the pressure producing device.

12. An ironing machine comprising a head, a buck for cooperation therewith, means supporting the head for movement into and trom-operative position, a. iluid pressure system for actuating the buck including a reservoir, a pressure producing device supplied therefrom, iiuid operated motors operatively connected to the buck and to the pressure producing device, a piston in the reservoir, means connecting thepistonand thev support for the head for concomitant operation, means for actuating lthe pressure producing device, and means for alternatively locking the sup-- porting means for the head and the actuating means for the pressure .producing device.

13. An ironing machine comprising a head, a

`Vsupporting means for vconcomitant movement, means for actuating the pressure producing device, means for alternatively locking the head supporting means and the actuating means forlhe pressure producing device, means for automaticallyactuating the locking means upon movement of the head into operative position to unlock the A actuating means for the pressure producing device, means connecting the locking means to the means .for actuating the pressure producing device 'for unlocking the head supporting means, and means 'f eifective upon unlocking the head supporting means to return the head to inoperative position. c

HERBERT C. BOWEN.