US2210949A - Wringer - Google Patents

Description

13, 1940- J. L. PERKINS 2.21 3

WRINGER Filed Oct. 26, 1937 2 Sheets-Sheet l .k a g s QQ $5 Q INVENTOR.

ATTORNEY.

Aug. 13, 1940. J pERKlNS 2,210,949

WRINGER Filed Oct. 26, 1957 2 Sheets-Sheet 2 Patented Aug. 13, 1940 UNITED STATES PATENT OFFICE WRINGER Julian L. Perkins, West Springfield, Mass, assig'nor to Perkins Machine and Gear Company Application October 26, 1937, Serial No. 171,040.

4 Claims. (01. 68-253) I I,

the parts shown in Fig. '7 taken on the line 88 This invention relates to improvements in wringer apparatus, and the principal objects of v the invention are directed to the provision of a wringer wherein cooperating rolls may be releasably locked in operative engagement, and

tension means are provided which automatically tension the rolls when in operative relation.

In wringers of the class to which the invention relates, it is common to releasably lock the wringer rolls in operative engagement by the movement of an operating member which also simultaneously puts the rolls under a spring.

tension. In such a construction, the manual effort required to put the rolls under a spring tension is objectionable.

According to this invention there is a manually engageable operating member which is movable between operative and inoperative positions so as to releasably lock the rolls in operative relation, very little efiort being required on the part of the operator to move the member. A tension means for the rolls is brought into play automatically by power means which is under the control of or is activated by the operating member. The wringer'may be easily and quickly operated since no particular effort is required to releasably lock the rolls in their operative relation while the tension means usually requiring considerable ef fort is operated automatically or mechanically.

The several novel features and advantages of this invention will be more fully hereinafter referred to in connection with the accompanying description of the preferred form of the invention with reference to the accompanying drawings wherein:

Fig. l is a longitudinal sectional elevational view through a wringer embodying the novel features of the invention;

Fig. 2 a plan view on the line 22-of Fig. 1;

Fig. 3 is a plan view of a receiver guide associated with the head and end frame of the wringer shown in Fig. l; I

Fig. 3a is a transverse sectional elevational view approximately on the line 3a3a of Fig. l to show certain novel features of construction;

Fig. 4 is a partial rear end elevational view on the line 4-4 of Fig.1;

Fig. 5 is a sectional elevational view on the line 55 of Fig. l with parts broken away for clearness;

Fig. 6 is a plan view on the line E-6 of Fig. 5;

Fig. 7 is a sectional elevational view on the line l-l of Fig. 1; and

Fig. 8 is a side elevational view of certainof tudinal member 6. The parts beingthus connected, they provide a frame and the head 2 has associated therewith certain mechanisms which are about to b described.

A driven shaft 8 is rotatable in the head and a lower wringer roll Ill has a head H in a socket of shaft 8 as'shown; A'journal part [4 of the roll it is journaled in the outer or end frame 4. A pin l4 of the roll head works in a slot of shaft 8, as shown, whereby-as shaft 8 rotates the roll. I0 is rotated thereby. The head is provided with a vertical guideway such as l2 in Fig. 3 anda similar guideway is associated with the outer end frame 4. In each guideway there is a receiver l8 such as shown in Fig. 3. The receivers are slidable up and down in the guideways. Depending downwardly from each receiver l8 and at either side thereof are rods 20 (see Fig. 3a). Plates 22, below the receivers it have parts 24 which are slidable on rods 20 and springs 26 around the rods bear on heads'ZB of the rods and against parts 24. These resist separation of the receivers and plates and serve as tension means for the rolls as will presently appear. An opi ber 30 are arranged for movement in the slot and 42 described. In the drawings the upperroll 34 is shown as resting on and in operative en-' gagement with the lower roll H). To releasably lock the rolls in operative relation the operating member 30 is swung to an operative position at one side or the other of the vertical so that the projection 38 enters the seat 46 with the lower projection 36 being positioned in the lower slot 4?. The rolls are released by swinging the operatingmember to its central," neutral or inoperative position and the upper projection 38 is moved into alignment with the upper slot).

Then the upper roll is free to move upwardly and when moved upwardly the operating member may be swung to a more or less horizontal position so that the upper projection enters the slot 44.

The operation just described is similar to that of the wringer shown and described in U. S. Patent to Perkins 1,906,407. As shown in said patent as the operating member is manually moved from a neutral inoperative position to an operative position to releasably lock the rolls in operative relation the wringer rolls are simultaneously subjected to the action of the tension means. This requires considerable efiort on the part of the operator.

According to this invention the novel construction does not require the operator in swinging the operating member to exert any considerable effort, since the rolls are not put under pressure by the operating member 30. Instead by the present invention the rolls are merely releasably locked in operative relation, the only effort required is that for releasably locking by discerning the parts so that the rolls and occasioned by the compacting of the rolls which may be flattened to some extent. There is no action of the springs 26 brought into play since this is done by another means now to be described.

The means for compressing the springs 26 placing the rolls under tension will now be described. A tension shaft 5 0 is journaled in the head and in the outer frame as shown in Fig. 1 and it has eccentrically disposed portions 52 which are journaled in the lower portions of the plates 22. Shaft 50 is automatically rotated when the operating member is moved from an inoperative to operative position through means to be described, and as it rotates the eccentric portions of the shaft are rotated approximately 180 and downwardly from the position shown in Figs. 1 and 3 to move the plates 22 downwardly and compress the springs 26. As the springs 26 are compressed thereby providing a space between the receivers I8 and parts 24 of the plates 22 as material is passed between the rolls it is subjected to the action of the springs since the springs resist upward movements of the receivers to which the upper roll is locked.

As will be seen when the operating member is moved from a central inoperative position to an operative position the rolls are releasably locked in operative relation then as the shaft 50 is caused to rotate the rolls are put under spring tension.

The driving mechanism of the wringer will now be described.

In the head there is shown a vertical shaft which is coupled by a coupling 62 to shaft 64. In all cases the wringer will be adapted to be placed on the vertical column of a washing machine and. in the column there is sucha shaft as 64 to which the wringer driving 'mechanism may be connected by means of the coupling 62. The shaft 64 is adapted for continuous rotation. A gear 66 is fixed to shaft 60 which is in continuous rotation and meshes with a gear 68 normally rotatable on shaft 50. The gear 60 is in continuous rotation on shaft 50 but it is engaged with said shaft 50 accordingly as the operating member'30 is moved from an inoperative to an operative position. I

A gear I0 is fixed to the shaft 8 andit is in mesh with upper and lower gears'IZ rotatable on shaft 60. A spline I4 is associated with shaft 60. The gears 12 have movable in bores I8 thereof keys in the form of balls I8 which are receivable in the spline I4. A collar 80' is movable up and down relative to the gears 12. Inner beveled surfaces, as shown, are associated with the collar 80 which act on the ball I8 to force them inwardly of the gears I2 so that the balls enter spline I4 and lock the gears I2 to the shaft 60. A circumferential groove 8| around the collar 80 receives a pin as shown which is carried by the lower end of a lever 84.

By moving the collar 80 up or down from the position shown in Fig. 1 one or the other of the gears I2 may be clutched to shaft 60. According to which one of the said gears is clutched to the shaft the shaft 0 and lower roll will be rotated in one direction or the other.

The'lever 84, see Figure 4, is pivoted to the head at 86 and its upper end is slotted at 80. A rock shaft 90 is journaled in the head and carries an arm 92 provided with a pin 54 which is disposed in the slot 88. An arm 98 fixed to the inner end of shaft 90 has a slot I00 which receives the extension of the projection 38 of the operating member 30. As the operating member is moved in one direction or the other to releasably lock the rolls in operative relation the extension 40 causes the member 98 to be rocked to oscillate shaft 90 whereby member 92 operates lever 84. In that way the collar 80' is moved up or down whereby the rolls are driven in one direction or the other according to that operating position to which member 30 has been moved.

The gear 68 has a pawl IIO pivoted thereto at H2 (see Figures 5 and 6). A ratchet H4 is fixed to shaft 50, and is provided with notches II6 adapted to receive the pawl H0. The pawl IIO has an extension H8 and a spring I20 in a socket I22 of gear 68 acts on the extension I I8 and tends to move the pawl clockwise of gear 68 so that it will enter a notch II6 of the ratchet II4 when permitted to. A lever I30 is carried by a covering rod I32 which is slidable in the head and it has a hub or sleeve part I34 surrounding the ratchet I I4 so that the hub part is slidable on the ratchet. The inner end of hub I34 has slots I36 provided with cam faces I31. A pin or keeper I38 projects from the pawl I I0 and as the gear 68 rotates carrying pawl IIO with it the keeper I38 normally rotates around and on the hub I34 of lever I30, the end of the pawl passing over notches II6 of ratchet II4.

When lever I30 is moved away from gear 68 the hub I34 is removed from beneath pin I38 whereupon the pawl being rotated by the gear enters a notch I I5 of ratchet I I4 so that, through the pawl and ratchet, the shaft 50 is rotated. The lever I30 is moved away from gear 68 when the operating member is moved to an operating position. It is urged towards gear 68 by spring I40 after a movement away from said gear and its inner end brings up against pin I38 of the pawl. When the pin arrives at a notch I36 of hub I34 the spring moves the lever towards the gear because the pin enters said notch and being rotated by the gear the pin rides up the cam surface I31 of the notch withdrawing the pawl IIO from the notch N6 of the ratchet whereby rotation of the shaft 50 is stopped.

The parts are arranged so that shaft 50 is rotated through 180 which is sufficient to tension the springs by moving plates 22 downwardly. As stated the lever I30 is moved away from gear 68 when the operating member is moved from inoperative to operative position, thereby causing shaft 50 to be operated for putting the rolls under tension. The lever I is moved again when the operating member is moved from operative to inoperative position thereby causing shaft 59 to be rotated to release the pressure on the rolls.

The lever I30 is moved by the means now to be described.

A lever I46 is pivoted at I 38 for a swinging movement (see Figs. 1, 7 and 8). Its lower end is arranged to engage an outwardly extending part I 59 carried by lever I30 and its upper end is notched to receive a V-shaped projection I52 on member 98 fixed to shaft 90.

As lever 98 is swung by the extension of the operating member 30 from central neutral to an operating position the projection I52 of member 98 rides out of the recess of lever I46 causing the said lever I46 to swing and it acting on part I50 of said lever I30 moves it away from gear 68 allowing the pawl III! to operate the ratchet on shaft 50. As the operating member 30 is moved from operative to inoperative position the member 98 is moved to neutral position so that the V-shaped projection swings lever I 46 in entering the notch thereof. This causes the lever I30 to be moved away from gear 68 for operation of the ratchet and pawl mechanism.

From the foregoing it will be observed that the operating member in its movement from inoperative to operative position merely locks the rolls in operative relation while the tension means is rendered operative automatically to put the rolls under tension.- This eliminates the necessity of the operator exerting sufficient effort on the member 30 to put the rolls under tension whereby the operation of the wringer does not call for any great effort on the part of the operator.

In stopping the wringer the operator merely engages it for movement to its neutral inoperative position and the tension means is automatically released.

Having described the invention in great detail and with respect to a preferred form thereof, it is not desired to be limited thereto since many changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. What it is desired to claim and secure by Letters Patent of the United States is:

1. A wringer comprising in combination, a frame, coacting rolls, pressure means for said rolls, driving means, engageable driving mechanism for said rolls connected thereto having a shifter movable between operative and inoperative positions to engage and disengage the same, power means operable to actuate said'pressure means and apply pressure or release the same having a movable member to connect said power means and disconnect the same from the pressure, means, a manually engageable bar member extending along from end to end of said wringer swingable thereon on a horizontal axis and movable between operative and inoperative positions, connections operable when said member is in operative position to connect said rolls to the pressure means, and connections operable when said member is in operative position to move said member to connect the power meansto said pres' sure means.

2. A wringer comprising in combination, a frame, pressure means for rolls having a member movable between operative pressure applying and inoperative pressure releasing positions, coacting rolls one of which is movable relative to the other between operative pressure applied and inoperative pressure released positions, a longitudinally extending manually engageable operating member swingable between operative and inoperative positions, releasable connections associated with said member and pressure means operable when said member is in operative position to connect said rolls to the pressure means and hold said rolls against movements away from each other, power means, engageable roll driving mechanism connected thereto having a shifter movable between engaging and disengaging positions, means for actuating the pressuremeans engageably connected to the power means, a movable member to engage and disengage the same, and connections between said operating member and said shifter and between said member and said movable member.

3. A wringer comprising in combination, a frame, pressure means for rolls having a member movable between operative pressure applying and inoperative pressure releasing positions, coacting rolls one of which is movable relative to the other between operative pressure applied and inoperative pressure released positions, a longitudinally extending manually engageable operating member swingable between operative and inoperative positions, releasable connections associated with said member and pressure means operable when said member is in operative position to connect said rolls to the pressure means and hold said rolls against movements away from each other, power means, engageable roll driving mechanism connected thereto having a shifter movable between engaging and disengaging positions, means for actuating the pressure means engageably connected to the power means, a movable member to engage and disengage the same, and connections between said operating member and said shifter and between said member and said movable member, said releasable connections including projections at the ends of said operating member and said one roll releasably receivable in cam slots provided in said pressure means.

4. A wringer comprising in combination, a frame, pressure means for rolls having a member movable between operative pressure applying and inoperative pressure releasing positions, coacting rolls one of which is movable relative to the other between operative pressure applied and inoperative pressure released positions, a longitudinally extending manually engageable operating member swingable between operative and inoperative positions, releasable connections associated with said member and pressure means operable when said member is in operative position to connect said rolls to'the pressure means and hold said rolls against movements away from each other, power means, engageable roll driving mechanism connected thereto having a shifter movable between engaging and disengaging positions, means for actuating the pressure means engageably connected to the power means, a movable member to engage and disengage the same, and connections between said operating member and said shifter and between said member and said movable member, said pressure means including members slidable in said frame and said means for actuating the pressure including a rotatable shaft having excentrically disposed members operatively engaging said slidable members.

JULIAN L. PERKINS.

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