US1711619A - Washing-machine-wringer release - Google Patents

Description

May 7, l929- .s,rRoscHE|N WASHING MACHINE WRINGER RELEASE Filed Aug. 29, 1925 Patented May 7, 192g.,

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ElDWARDl STROSCHEIN, OF-OSHKOSH, WISCONSN, ASSEGNOR, BY MESNE ASSEGN- MENTS, T0 PRIMA MANUFACTUBNG COMPANY, INC., OF SIDNEY, OHM), A COR- lOB/ATION OF OHIO.

WASHING-MACHIN'E-WRINGER RELEASE.

application ined august 29, 1925. I serial no. 53,356.

|This invention pertains to improvements in wringers, and more particularly to a motor driven wringer such as is employed in connection with washing machines.

. At the present time all conventional types of washing machine wringers are providedA with means for instantaneously releasing'the pressure upon the top roller in event the clothes become tangled or wound upon the wringer or in case the operators hands should accidently be caught between the wringer rolls. Present methods providing for the release of the pressure upon the rollsl differ somewhat in mechanical structure, but

such releases usually depend upon the manual operation of a release lever which is independent of the wringer drive control lever.

Apparatus which contains independent and unrelated levers for quick releasing means and for drive control means is objectionable in that the operator must irst release the pressure from the rollers and then perform a' subsequent operation to throw the driving means into neutral for stopping the rollers.

rlhe present invention has primarily 'for its object to overcome the foregoing objections by the provision of a common control which, upon actuation, controls the engagement and disengagement in the driving train and the pressure and relief et pressure on the wringer rolls. t

ltis the object of my invention, further, to provide means whereby drive relation lor rotating the wringer rolls and pressure upon the wringerrolls on the one hand, and the interruption of drive relation and relief of pressure, on the other hand, are respectively obtained in unison; further, to provide a manual control for a wringer arranged, by a movement of a manual control part in the same general direction to cause driving relation in the driving means for the wringer roll and pressure 'relation upon the wringer rolls; further, to provide novel means Whereby such combined relations are obtained by movements of the manual control part in opposite directions from a given point; further, to provide novel means whereby movements Lof the manual control member in opposite directions along similar paths cause drive relation and pressure relation upon the upon each drive release 'for said wringer rolls; and, further, to provide novel means whereby upon each drive engagement in the driving train '.tor the wringer rolls pressure is imparted to the wringer rolls.

lt is the object of my invention, further, to provide pressuremeans for wringer rolls arranged to be moved into pressure relation by a drive control part for rotation of the wringen rolls and to be automatically held in such pressure relation by said drive control part; further, to provide means whereby release insaid pressure retaining means is automatically urged by the pressure on said rolls; and, further, to provide holding means for pressure maintaining means normally urged into disengaging relation and held from such disengaging relation by a drive controlling element; further, to provide cam means and a ceac-ting part for pressure between the wringer rolls so arranged that the pressure upon the rolls normally automatically urges descent of the cam by saidcoaeting part for release of said ressure between said pressure rolls; and, urther, to provide novel means for resisting said automatic release by a. member concerned in rotation of said wringer rolls.

A further object of the invention is to provide a washing machine wringer with means of the foregoing character which in no way interferes with, or requires alteration of' the present types of drive controls.

A still'further object is to provide a pressure releasing mechanism of the foregoing character which, upon actuation, releases pressure from. both ends of the wringer roll.

An embodiment of the invention is shownl in the accompanying drawings, in which Figure 1 is an elevation partly in section of the device. l y

Figure 2 is a sectional viewon the line 2 2 of Figure 1 looking up.

Figure 3 is an enlarged vertical sectional view through one corner of the release mechanism.

Figure 4 is an enlarged sectional View` through the hub of the operating handle yand associated cam.

Referring to the drawings, it will be seen that a pair of wringer rolls 1 and 2 are cari'ied in a suitable housing provided with uprights 3 preferably of channel construction. These Auprights are connected by means of a top plate 4, as shown most clearly in Figures 1 and 3; The top plate is cut .20 10, such springs urging the upper roll l -downwardl It is to fie noted from reference to Figures 1 and 3 that each of the levers 5 and 6.

is provided with a pair of rollers 11`adjacent the under side of their free or outer ends. These rollers, as most clearly shown in Figure 2, are positioned'on opposite sides of their respective levers and are engaged under normal conditions by means of lugs L 12 carried bya slide composed of a pair of strap-like members 13. This slide, composed of the strap-like members 13, passes through slots in the main housing 3 and the straps are brought together to form an outwardly projecting arm .14, such arm Vbeing bent downwardly andoutwardly, as shown in Figure 1. f

A roller 15 is carried on the under lside of the arm 14 and engages a cam 16 integral withthe control lever 17 for the drive mechanism forI the wringer. This drive mechanism is preferably carried `Awithin a box-like housing 18, as shown inv Figure 1, and may be of any suitable type. For example, a pair of bevel gears 19 and20 may be loosely mounted upon the shaft 21` of the lower .roller 2 and mesh with a drivin bevel gear 22 driven from the shaft 23. clutch member consisting of. a slidable collar 24, splined in the usual manner to the shaft 21, is adapted to cooperate with either of the gears 19 or 20 to operatively connect the shaft withthe respective gear upon vshifting of the. control lever or handle 17.

Preferably the clutch member 24 is operated by means .of a pin25 carried by the lower end of the short shaft 26. This short shaft 26 is operated by. means of the handle 17, but it is to be noted that the hub 17 of thevhandle has a loose or sloppy fit with the shaft. This is secured by providing a pin 27 'in the hub 17 and forming a slotlike aperture 28 in the shaft 26, sofas to provide play of the cam member 16 with reference to the shaft 26 to a limited extent.'

Assuming that the device is in operation and material has become wedged between the rollers, it is merely necessary to rock the lever 17 -towards vneutral position.l This rocks the cam 16 and permits the roller 15, carried by the arm 14, to move outwardly.

This movement causes release of the clutches controlled by the clutch collar 24, placing this clutch collar in neutral position. It also moves the cam 16 so that a lower portion of the cam is complemental to the roller 15, thereby permitting automatic releasing movement of the slide for release of the levers 5 and 6, and release of pressure uponthe wringer rolls. The pressure upon the wringer rolls preferably normally urges movement in release direction of the parts which resist such pressure..

Thus, fin the present exemplification, the rollers 11 form cams, which are engaged by the resisting lugs 12.'v The contact points of these lugs Contact the outer periphery of the rollers 11 and move the rollers down,- wardly, but preferably do not reach the uppermost point of vsaid rollers or high points of the cams. l The lugs 12 are therefore normally urged into pressure relieving relation* or movement.

This movement in the present exempliication is resisted by either one of the ends of the cam 16 while the] clutches for forward rotation or reverse rotation of the wringer rolls are respectively in engagement.

vThe exemplified relation of the parts normally causes pressure of the roller 15 toward the cam 16. When the lugs 12 are released from their positions above the rollers 11,` the levers 5 and 6 are permitted to rock upwardly for releasing the pressure upon the 'springs 10. Relieving pressure upon the wringer rolls at each release of driving connection insures that the wringer rolls are without pressure when not rotating and when idle, and avoids the dangers of continued pressure upon the rolls when thel machine is not in use. j

I t will be seen that when wedgmg occurs 1t 1s merely necessary to operate the con- 'trol lever and this in turn automatically releases the pressure upon the upper roll, thus relieving the pressure between the rolls and permtting the freeing of the ob'v structing material. j

It will be seen'that a substantially'inystantaneous response is secured by this con-v struction and that the danger of damage due to wedging inl the rolls hasbeen reduced to a minimum.

It is to be distinctly understood that any suitable type of drive mechanism maybe used for the'wringer rolls and they may or may not'be geared together. Further, any suitable type of springs may be employed for urging the rolls towards each other.

affinare f Although the invention has been described in considerable detail, it is to be understood that the invention may be variously embodied and is, therefore, to be limited only as claimed. y

' l claim: y

1. ln a device of the class described, the combination of a frame, a pair otivringer rolls mounted in said frame, one of said Wringer rolls being movable with reference to said frame, means urging said movable wringer rollA toward the other wringer roll including latch means pivoted to said frame, said latch means provided with a cam face normally urged in direction for releasing said latch, a control member provided with a part coac'ting with said cam face for retaining said latch means in -latched relation and permitting unlatching movement of said latch means, drive mechanism for said rolls including a drive release member, and means eonnectedwith said control member and said drive release member for releasing said drive release member upon unlatching movement of said control member.

2. A wringer mechanism comprising .a

iframe, a pair of rolls carried by said frame,

one of said rolls being a driving roll, the

y other of said rolls being movable, a pair of springs mounted at opposite ends of the movable roll and urging such roll towards the driving roll, a pair of levers pivotally carried by said frame, means carried by said levers for engaging said springs, a

slide carried by said :trame said slide andk saidt levers having interloclring means tor holding said levers in their normal posi-- tions, drive mechanism for said driving roll, acontrol lever for said driving mechanism, said slide and con-trol lever being operatively coupled, whereby when said control lever is operated, said slide will automatically release said first mentioned levers.

3. A wringer mechanism comprising a pair of rolls, a frame carrying said rolls, a pair of levers adjacent the upper end of said frame and having their inner ends pivotally secured tol said frame, said levers each having'rollers adjacent their outer ends, a slide mounted lengthwise of said frame and having lugs engaging the rollers of said levers, springs held in pressure relation to one of said rolls by .means ofsaid levers, driving mechanism for-said rolls, a control lever for said driving mechanism, and cam means connectin said slide, where y when said control leverl is moved into neutral position said slide will release the rollers of said iirst mentioned levers. p v

4'. A wringer mechanism comprising wringer rolls, releasable pressure means therefor comprising a part coacting with the wringer rolls for exerting pressure upon the said contro-l lever with and contact parts operativel wringer rolls, and cam means for said part including a cam having a cam face, a coacting slide comprising a contact part for said cam face, said cam face provided with an abruptly ascending portion and a slightly ascending portion presented to said contact part, and an operating part causing movement between said slide and said cam face for pressure relation between said rolls, said cam face being so arranged that during the fore part of saidfcoacting movement said contact part coacjts with said abruptly ascending cam portion and during the latter portion of said coacting movement said contact-part coacts with said slightly ascending cam portion. i' i l 5. A wringer mechanism comprising wringer rolls, and pressure means therefor comprising a pivoted lever, a piessure'exerting part on said lever arranged to exert pressure on said rolls, a roller on said lever, a slide provided with a part coacting with the periphery of said roller, and means for moving said slide endwise for causing said lastnamed part to coact with said periphery and thereby force said roller and pressure exerting part in a direction to cause pressure upon said rolls, and arranged kwhereby endwise movement of said slide in the o posite olirection releases said roller to re ease pressure from said rolls. Y

6. lin a clothes wringer,lthe combination of a frame, a lever pivoted at each end of said frame, wringer` rolls in said frame, said levers having operative connections with said rolls to exert pressure on said rolls, rollers on said levers, a slide extending lengthwise of f levers having operative connections with said v rolls to exert pressure on'said rolls, lrollers on said levers, a slide extending lengthwise ofsaid frame, said slide provided with contact parts for-said rollers whereby to move said levers in pressure exerting direction' for exerting pressure between said rolls, 'a manual control lever, and a cam `operated thereby, said cam having contact connection with said slide for operating said slide.

8. In a clothes wringer, the combination of a frame, a lever pivoted at each end of said frame, wringer rolls in said frame, said levers having operative connections with said rolls to exert pressure on said rolls, a slide extending lengthwise of said frame, rollers arranged be` tween and mounted on said evers and said slide, said contact parts coacting with said iis roller's, and constructed and arranged yfor relative movement between saidcontact parts and said rollers to respectively exert and release pressure 4upon said rolls by movement of said slide, and a manual control lever causing said relative movements.

9. In a clothes vvringer, the combination of a frame, a lever pivoted at each end of said frame, wringer rolls in said frame, means for rotating said Wringer rolls including a releasable drive connection, said levers arranged to exert pressure on said rolls, a slide extending lengthwise of said frame, rollers and contact parts operatively arranged between and mounted on said 1e vers and said slidefsaid contact parts coacting with said rollers, and constructed and arranged for relative movement between said Contact parts and said rollers to respectively exert and release pressure upon said rolls by movement. of said slide, and a manual control lever causing said relative movement and having operative connection With said releasable drive connection for shifting the latter. Y

In testimony that I claim the foregoing I have hereunto set my hand at Oshkosh, in the county of Winnebago and State of Wisconsin.

EDWARD STROSCHEIN.

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