US2216400A

US2216400A - Wringer and the like

Info

Publication number: US2216400A
Application number: US209707A
Authority: US
Inventors: Walter L Kauffman
Original assignee: Lovell Manufacturing Co
Current assignee: Lovell Manufacturing Co
Priority date: 1938-05-24
Filing date: 1938-05-24
Publication date: 1940-10-01
Anticipated expiration: 1957-10-01
Also published as: GB528556A; DE528556C

Description

@CL l, 1940- A. w. l.. KAUFFMAN, 2D 2,216,400,

WR-INGER AND THE LIKE l Filed May' 24,. 1958 a sheets-sheer 1 5 25 o 5 l :2 7 30|| LgS-f 4"37 I 3/7 Z0 iw 4 4245 `/9 l; 35TH i '14 I 3 9 I Il 42 4 2l f a 5/ 27 l 404u7 l 9 .l 2 l l l 46 'H l'\ if 28 5p\52 l O l /702 INVENmR.

BY MZ, 757

ATTORNEYS. I

mi #WE 0d. l, 1940 w. l... KAUFFMAN, 2D 2,216,400

.WRINGER AND THE LIKE l Filed May 24, 1958 2 Sheet-Sheer 2 ArmRNm/s. A

Patented Oct. 1, 1940 UNITED STATES PATENT OFFICE WRINGER AND THE Application May 24, 1938, Serial N0. 209,707

8 Claims.

Wringers and similar devices driven by power involve certain hazards to the operator which are ordinarily reduced by some sort of safety device. driving means which may be extended to reversing the rolls and some such devices relieve the pressure. and some improvementsinvolve both types of safety devices. In these devices it is necessary after the safety release mechanism lo has been operated to reset the wringer or similar device to operative conditions. When the release is effected by a movement of the wringer itself it is necessary to replace the wringer in its operative position as the wringer: is'reset,

otherwise the wringer will simply release itself and the resetting action will be futile.

In the present invention the replacing of the wringer in its operative position is brought about automatically by the resetting. In the preferred form, the resetting operation compels this positioning of the wringer as the resetting is accomplisheli.

The invention also contemplates a convenient and simple mechanism forresetting and releasing the wringer, and effecting a safety action of the wringer. Features and details of the invention will appear from the specification and claims.

A preferredembodiment of the invention is illustrated in the accompanying drawings as follows:

Fig. 1` shows a front elevation of the wringer partly in section.

Fig. 2 a bottom view of the wringer in operatve position. .i

Fig..3 a bottom view of the wringer in release position.

Fig. 4 a perspective vView of a mounting and releasing detail.

as it is released.

Fig. 6 a front elevation partly in section of an alternative construction. A

Fig. 7 a bottom view of the same structure. Fig. 8 an end view of a releasing cam with the wringer in set position.

Fig. 9 a similar view with the wringer in release position.

Fig. 10 a perspective view of the trip rod and 50 cams.

Fig. 11 a section on the line ii-II in Fig. 6 with the wringer in set position.

Fig. 12 a similar view with the wringer in trip position. 55 Fig. 13/ a detached view of a roll stop device.

Some of such safety devices stop the Fig. 5 an elevation of the end of the wringer" I marks a base of a wringer frame; 2 a stile remote from the wringer -mounting; 3 a stile adjacent the wringer mounting and driving mechanism; l a lower roll; 5 an upper roll; 0

and 'I shafts for said rolls respectively; 8 bear- 5 ings for the lower shaft; 3 brackets supporting the bearings 8; I0 bearings for the upper shaft, these being slidingly mounted in the stiles; il a spring resting on the bearings I0; I2 an adjusting screw; I3 a nut through which the screw operates, the nut being arranged in a detachable top I4. A shoulder II is struck up in the outer face of the stile 3 and a shoulder I8 is struck up in the end of the top bar so as to form l a lock for holding the top in position at the driving end of the wringer.

A resetting lever I1 is arranged at the outer end of the wringerland hinged on the top bar. Links I8 (one at each side of the stile) are pivoted at I9 on ears 20 on the side stile 2. The links I8 are pivoted at 2| on the lever I1, the lever being chann'el form the sides extending over the faces of the stile. The link and lever form a toggle by means oi' which the-spring pressure may be reset. As shown, the link is carried slightly past center thus rendering the toggle stablein set position.` In order to releasethe pressure it is only necessary to remove the lever sumciently to carry the link past the center. The lever has an extension 23at its upper endy which extends through an opening 24 in the end of the top. A hinge plate 25 is secured to the lever and has a hook 26 which extends through the slot 24, the structure forming a hinge connection between the lever and the top bar.

A driving gea mechanism is carried in a. case 21 which is swiveled through an extension 28 on a usual supporting post, not shown. A drive shaft 29 is provided which operates on'the `gear mechanism (not shown) and this gear mechanism may be thrown in the usual manner Aby shaft 30 and operating handle 3|. A shaft 32 extends horizontally from the gear mechanism. Paralleling links 33 are mounted on the gear case by pins 34 and connected by pins 35 with ears 36 on a mounting platel 31 secured on the stile 3. The top and bottom parallel links are connected by side plates 33a. By means of this mechanism the wringer can swing forward and back but is maintained in parallel in the diierent positions. This mounting is important in that it makes each 'part lengthwise of the wringer equally sensitive to movement.

' A universal joint .extends from the shaft 32. This comprises a tube Il having slots 83 at each end. A pin 40 extends through the shaft 32 into one slot and a pin 4I on an extension 42 extends through the other slots. The extension 42 projects from a conical cam member 43, the conical surface riding in a corresponding surface in the bearing 8. The member 43 has jaws 44 extending from it, adapted to engage a pin 45 in the shaft 6. A spring 46 (see Fig. 13) tends to move the member 43 so as to diisengage the jaws 44 and this is accomplished when the shaft 6 is relieved of pressure. When pressure is e; erted on the shaft the camming action of the conical surface of the member 43 acting on the cam surfaces of the bearing 8 moves the member 43 endwise so as to lock the clutch. Thus the driving connection is broken automatically when the rolls are relieved of pressure and the driving connection is automatically set when the rolls are put under pressure.

The lower links 33 have. bell crank levers 41. These have downwardly extending fingers 4S which are in position to engage cam surfaces 49 on a cam plate 50. The cam plate is carried by rod 5I which is slidingly mounted in the bottoms of the stiles 2 and 3. The rod is forced endwise by a spring 52 between the outer face of the stile 3 and the cam plate 50. The outer end of the' rod 5l actuates the wringer reset and in operating position contacts the lever l1.

The operative position of the wringer is at the center as shown in Fig. 2. The spring 52 pressing on the bell cranks brings the links into alignment and thus centers the wringer. 'Should the wringer be pulled or pushed from this position, the links 33 are swung, and one of the bell cranks operating on the plate forces lthe rod endwise and releases the setting lever i1, thus releasing the pressure on the wringer, and in consequence stopping the drive through the cam member 43. When the lever I1 is reset, thus resetting rthe pressure on the wringer, the cam plate 50 is forced to its set position and this, acting on the bell cranks, compels a centering of the wringer. Thus when the lever is brought to its final position and the operator removesthe hand from the lever, the wringer will stay in this reset position and is in operating position to receive clothes. 'Ihus the operator is not confused in the resetting operation and cannot leave the wringer in position to release the pressure on removal of the operators hand.

In the alternative construction, Figs. 6 to 12, the wringer, driving mechanism and roll stop are identical with lthe parts described in Figs. 1 to 5. The trip mechanism however, differs. In this structure a trip rod 53 extends across the bottom, the outer end extending through a perforation 54 in the stile 2 and in operating position engages the resetting lever. A shoulder 55 is fixed on the frame. A shoulder 56 is fixed on the shaft. A spring 51 has ends 55a and 56a which extend into the

shoulders

55 and 56. The spring is put under tension both rotative'ly and longitudinally so that when the shaft is released rotatively the spring will rotate the shaft and when released endwise the spring will force the rod endwise with suflicient force to trip the resetting lever l1.

A cylindrical extension 58 is arranged `at the driving end of the wringer, and this has splines 59. The cylindrical portion 58 extendsthrough an opening 60 in the stile, the opening having extensions 6i to receive the spline 59. A disc S2 is fixed on the end of the shaft and this has projecting

cams

63 and 64 which are adapted to engage a plate 65 on the'gear case. When the wringer is in the central position the cams 63 and- 64 are in engagement with the plate 65 but if the wringer is moved either forward or back one or Ithe other cams operating on the plate twist the disc 62 and with it the rod 53 against the tension of the spring 51. This rotating of the rod-brings the splines 59 which, in operative position, engage the face of the stile 3, into register with the slot 6| whereupon the spring 51 forces the rod endwise and trips the resetting lever. When the resetting lever is returned to set position it forces the rod endwise carryingv the splines 59 through the stile and the spring 51 rotates the rod so as to bring the splines 'over the face of the stile and thus lockthe rod against endwise movement. This rotating of the rod vthrough the action of the spring effects a centering movement of the wringer through the cam action of the

parts

63 and 64 on the plate 65. Therefore, by mere movement of the wringer, either forward or back, the rod is rotated and released tripping the release mechanism which relieves the pressure and incidentally stops the drive. When the Wringer is reset by returning the lever l1 to position the rod is forced endwise 4 so as to carry the splines out of the slot and the rotation of the rod centers the wringer.

What I claim as new is: y

l. In a wringer having a Wringer frame, rolls mounted in the frame, pressure means exerting pressure on the rolls, a safety device releasing one of said means, a movable mounting for the wringer frame providing a normal operative position for the wringer frame and freedom of movement from the operative position, and a trip device sensitive to wrinf'er frame movement from operative position eiecting an operation of the safety device; the combination with the pressure means, driving means, and safety device, of a resetting device comprising a toggle for resettingthe means released, and means compelling a repositioning of the wringer frame to operative position as the resetting device is actuated to reset the means released.

2. In a wringer having a wringer frame, rolls mounted in the frame, pressure means exerting pressure on the rolls, a safety device releasing the pressure means, a movable mounting for the wringer frame providing a normal operative position for the wringer frame and freedom of movement from the operative position, and a trip device sensitive to wringer frame movement from operative position effecting an operation of the safety device; the combination with the pressure means, driving means, and safety device, of a resetting device comprising a toggle for resetting the pressure means, and means compelling a repositioning of the wrnger frame to operative position as the resetting device is actuated to reset the means released. 3. In a wringer having a wringer frame, rolls mounted in the frame, pressure means exerting pressure on the rolls, a safety device releasing one of said means, a movable mounting for the wringer frame providing a normal operative position fcr the wringer frame and freedom of movement from the operative position, said mounting maintaining the wringer frame in its movement from one position to another in parallel, and a trip device sensitive to wringer frame movement from operative position effecting an operation of the safety device; the combination with the pressure means, driving means, and safety device, of a resetting device comprising a 2,216,400 toggle for resetting -the means released, and

means compelling a repositioning ofthe wringer frameto operative position as the resetting device is actuated to reset the'means released.

4. In a wringer having a wringer frame, rolls mounted in the frame, pressure means exerting pressure on the rolls, a safety device releasing the pressure means, a movable mounting for the wringerV frame providing a normal centered operative position for the wringer frame and freef dom of movement from the `operative position, and a 'trip device sensitive to Cwringer frame movement from operative position effecting an operation of the safety device; the combination with the pressure means, driving means, and

safety device', of a resetting device comprising a toggle for resetting the pressure means, and

means compelling a recentering of the wringer frame to operative position as the resetting device is actuated to reset the means released.

5. Irra wringer having a wringer frame, rolls mounted in the frame, pressure means exerting'4 pressure on the rolls, a safety device releasing the .pressure means, Va movable mounting for the wringer frame providing a normal centered op'- erative position forV the wringer frame and freedom of movement from the operative position, said mounting maintaining the wringer frame in its movement from one position to another lin parallel, and a trip device sensitive to wringer a wringer frame, rolls mounted in the frame, pressure means exerting pressure on the rolls, anda movable mounting for the wringer frame providing a normal operative position for the wringer frame and freedom of movement from the operative position, said mounting maintaining the wringer frame in its movement from one position to another in parallel; the `combination with said pressure means and mounting of a resetting device for resetting the pressure means when released, and meansl f actuated by a movement of the wringer frame releasing the resetting device' to release the pres;- sure means.

vl7. In a wringer having a wringer frame, rolls mounted in the frame, pressure means exerting pressure on the rolls, andl a movable mounting for the wringer frame providing a normal cen,

tered operative position for the wringer frame and freedom of movement from the operative I position, said mounting maintaining the wringer frame in -its movementfrom one position to another in lparallel; the combination with said pressure means and mounting of a resetting de- .vice for resetting .the pressure means when released, and means actuatedby a movement of the wringer frame from the centered position releasing the resetting device to release the pressure means.

8. In a wringer having a wringer frame, rolls mounted in 'the' frame, pressure means exerting pressure on the rolls, a releasingA device including a 'toggle and a movable mounting for the wringer frame providing a normal operative posi- 4 tion for the wringer frame and freedom of movement from the operative position; the combination with atrip rod extending across the .bottom .of the wringer actuating the toggle to release the pressure in response to a movement of the wringer'frame from operative position.

l WALTER LKAUFrMAmn. l40