US2218829A - Wringer - Google Patents

Description

Oct. 22, 1940.

F. A. PARISH WRINGER (MANUAL PRESSURE RESET) Filed Oct. 19, 1936 3 Sheets-Sheet 2 IINVENTOIR. .Z Q

BY J v ATTORNEY Oct. 22, 1940. F. A. PARISH WRINGER (MANUAL PRESSURE RESET) Filed Oct. 19, 1936 3 Sheets-Sheet 3 .III

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Patented Oct. 22, 1940' 1 PATENT OFFICE WRINGER (MANUAL PRESSURE RESET) Fred A.: Farish, Newton, Iowa, assignor to Automatic Washer Company, Newton, Iowa, a corporation of Delaware Application-October 19, 1936, Serial No. 106,411

4 Claims.

This invention relates'to clothes wringers and particularly to power driven wringers such as are used in domestic washing machines. The general structure, including the lock and release 5 mechanism of this wringer is similar :tothat of Y the rolls;

Another object is to provide pressure mechanism actuated by four helical compression springs adjustableto exert proper wringing pressure under all conditions; and

A still further object is to provide pressure mechanism which permits the top of the top frame to be smooth and unencumbered by the pressure mechanism. 7

Fig. 1 is a sectional elevation view disclosing the parts of my pressure re-set mechanism and their relation tothe major elements of the wringer. f

Fig. 2 is a sectional end elevation on the section lines 22, Fig. 1 showing the wringer rolls in pressure relationship;

Fig. 3 is a sectional elevation view on the section lines 2-2, Fig. 1, the same as Fig. 2, but showing the compression springs and rolls as they would appear just before the lower roll is released into tension relationship with the locked upper roll as illustrated in Fig. 5 and which later will be explained in detail.

Fig. 4 is a broken sectional front elevation view showing the pressure re-set mechanism about to start the actuating downward stroke of the hinged top frame;

Fig. 5 is'a broken. sectional front elevation mechanism after the downward stroke of the top frame has been completed with the rolls in locked pressure relationship as illustrated in Fig. 2.

Now referring to Fig. l, the numeral 20 designates the lower frame which has been broken off on its inner end to eliminate the gear head which is not included in this invention. The numeral quickly and easily efiect proper pressure between 2! designates the top frame which is hinged to the lower frame by the pivot rod 22.

Thelower roll 23 and the top roll 24 are journalled in bearings 25 and26 respectively. It will be noted that the journal shaft of the upper roll 24 is linked to the top frame by transverse members I9 so that it may have slight upward and downward-movement with respect to the top frame but will beretained thereby and has a cross bar 21 to provide driving connection with the wringer gear head not shown.

' It is also to be'understood that my wringer employs a top roll drive which is disengaged from the driving means when the top frame 2| is pivoted upwards.

Outwardly extending from the pivot 22 of the top frame 2| is a bifurcated cam lever 28 which bears against a bail link 29 which is held in central relationship with the cam lever 28 by the lock bolt 30 which passes slidably through a hole in 29 and between the bifurcated projections of the cam lever 28. 7

Near the lower end of the bail link 29 is the notch-29' designed to engage the lip 32' of the bell crank 32.

The baillink 29 isattached by welding to an- .other horizontally extending bail link 3! whose sides pass around thebell crank 32 and whose crossed end section is slidably supported on the rod link 34 which is pivotally supported in holes 34' of the bell cranks 32. It will be noted that the two bell cranks 32 are pivotally supportedby pins 33 and support'at the outer end of the crank link members 35 on pins35'. p

These linkmembers 35 extending substantially vertically are pivotally attached to the lower bearingsupport 31 by cross pins 38 through elongatedslots 36.. Also supported on the pin 33 on the outward end of the wringer is the lever member 39which bears against a vertical plunger rod 40 on its upper end.

The lower end of the levermember 39 is bifurcated and bears against the tube 4| on the rod link 34. This tube member bears against the closed end of the bail member 3| which is tensioned outwardly by the compression spring 42 and the cotter pin 43.

Rivete'd to the frame 20 on the outward end is a lock member 44 and an angular deflecting member 45, positioned to engage the pivotal latch 41 which is tensioned outwardly by a torsion spring 48 around the pivot 46. A rocking lock member 49 extending longitudinally in thetop frame is rockably supported at the points 5|].

Pinned to this rockable member 49 are release bars 52 extending along each side of the top frame 2| and connecting to the member 49 by pins through holes 5| in the side of the top frame 2|.

Normally the rocking member 49 holds the lip 47 of the latch G1 in locked relationship but by pivotal movement, the lip 41 is allowed to escape through holes 49 thus releasing the latch 41 from the lock 44.

It will, therefore, be understood that by pressing inward on the release bar 52, the top frame may be thus unlatched.

Having thus described the parts in their relation to each other, I will now describe the operation of the wringer.

Operation Assuming the wringer to be in locked pressure relationship and in operation, by pushing or pulling the release bar 52, the lip 41' of the latch 41 is allowed to escape through the slots 49' and the top bar is thus unlatched at M permitting the top frame to pivot about the rod 22, thus releasing the pressure between the rolls.

By lifting the top frame as in Fig. 4, the bail link 29 drops down and the notch 29 engages the lip 3'2 of the bell crank 32, the link 29 being imposed inwardly to accomplish the above engagement by the spring 42.

Further downward movement of the top frame as shown in Fig. 5 results in depressing the lower roll in its bearings against the compression springs 53 as shown in Fig. 3. This is accomplished by a lever system actuated by the top frame 2| on the rod 22 as a fulcrum through the cam lever 28, the vertical bail link 29, the horizontal bail link 3| which results in forcing the bell cranks 32 around their pivots 33 whereby the links 35 pull down the lowerbearing supports 31 whose horizontal ears 3'! compress the springs 53 as shown in Fig. 3.

At this point, as shown in Fig. 5, the plunger rod All now contacts the upper frame 2| and continued downward movement pivots the lever 39 about the pivot 33 against the tube 4| whereby the horizontal bail link 3'l is moved outward to disengage the notch 29 of the link 29 from the lip 32' of the bell crank 32.

While this is occurring the latch 41 has been forced under the lip of the lock 44 by the angularly disposed member 45 and when'the lip 32 of the bell crank 32 is finally released from the notch 29, the lower roll 23 is tensioned upwardly by the springs 53 guided by the adjustable studs 54 against the upper roll 24 held in the upper frame 2| in locked relation to the lower frame 20.

The wringer is now again in operating position and the complete cycle of operation will be well understood.

Having thus described my device, I now claim as new:

1. In a wringer roll pressure reset mechanism, a lower frame, a lower roll, springs resiliently supporting said lower roll in said lower frame, an upper frame pivoted at one end upon a pivot extending transversely of the lower frame for swinging movements, an upper roll mounted in said upper frame and cooperative with said lower roll in certain positions, a releasable latch for securing said upper frame to said lower frame, dual link bell cranks associated with a releasable link actuated by downward pivotal movement of the top frame for depressing said lower roll against said springs until the frames are latched together with the rolls separated, and re lease means for said lever system operative upon the movement of said top frame to a predetermined latching position for releasing the pressure of said springs to said rolls to put said rolls in pressure relationship.

' 2. In a'wrin'ger roll pressure reset mechanism, a lower frame, a lower driven roll, springs resiliently supporting said lower roll, an upper frame pivoted transversely on its inner end to the lower frame, an upper driver roll mounted in the upper frame, a dual link bell crank lever system connectable to the upper frame with a releasable link by upward pivotal movement of said frame and then operable by reverse downward move ment to depress the lower roll and its supporting springs to a point below contact engagement with the top roll, a manually releasable latch to lock the frames together, and a release mechanism for said lever system operable by the upper frame when in latched position on the lower frame to release the lever system and permit the lower roll to be sprung upward into pressure engagement with the upper roll.

3. In a Wringer roll pressure reset mechanism, a lower frame, a lower roll, springs resiliently supporting said lower roll, an upper frame pivoted transversely on its inner end to the lower frame, an upper roll mounted in the upper frame, a dual link bell crank lever system connectable to the upper frame with a releasable link by upward pivotal movement of said frame and then operable by reverse downward movement to depress the lower roll and its supportingsprings to a point below contact engagement with the top roll, a manually releasable latch to lock the frames together, and a release mechanism for said lever system operable by the upper frame when in latched position on the lower frame to release the lever system and permit the lower roll to be sprung upward into pressure engagement with the upper roll.

4. In a wringer, a pair of cooperative rolls, a lower frame, an upper frame pivoted transversel'y on the lower frame, pressure springs urging the lower roll upward, dual bell crank spring cocking mechanism operable with a releasable link by first upward and then downward pivotal movement of the top frame, a manual releasable latch to lock the frames together, and a trigger mechanism for releasing the bell crank spring cocking mechanism after the frames are locked together.

FRED A. PARISH.

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