Патент USA US2133234код для вставки
Oct. 11, 1938. l w. K, Voss LAUNDRY 71 I 2,133,234 MACHINE - Filed Dec. 8, ll f ‘ 1932 » - ì 2 ‘Sheets-SheetÀ 1 . > y fèî . 10 Patented oet. y11, 193s 2.133.234 ' PATENT OFFICE UNITED STATES K 2,133,234 LAUNDRY MACHINE Walter K. Voss, Davenport, Iowa. Application December 8, 1932, Serial No. 646,247 15 Claims. (ci. «ss-#253) invention, the lWringer mechanism and associated 4parts being shown in vertical section». The invention relates generally to laundry ma chines and the general aim thereof is to provide Fig. 2 is a top plan view of the wringer and as such a machine as will have a maximum factor of safety in the operation of the wringer mecha l) nism. sociated parts. ' Fig. 3 is a vertical transverse section through Ul one end of the wringer, taken as indicated by the line 3--3 of Fig. 1. Fig. 4 is a side elevation of the circuit breaking mechanism on an enlarged scale, the enclosing - An object of the invention is to provide, `in a laundry machine embodying wringer mechanism, novel means for releasing an operative pressure between the wringer rolls and instantaneously 10 discontinuing driven movement of said rolls. I 10 casing being in section. Figs. 5 and 6 are side elevational views of wring in which an actuator is effective, upon either er mechanisms> embodying modified> forms of actuators. . push or pull movement, to relieve the roll pres Figs. 7 and 8 are end views of the modified sure and discontinue the driven movement by breaking the power circuit to the prime mover.` forms of wringers shown in Figs. 5A and 6, respec , In conjunction with the foregoing, another ob- - tively. Fig. 9 is a sectional view of the circuit breaking ject is to provide a positive, mechanical connec mechanism and is taken along the line 9_9 of tion between the actuator and the circuit break ing device vwhich is releasable _instantly upon Fig. 4. 20 movement o_f the actuator, and may not be acci While the invention is susceptible of various dentally nor permanently reestablished prior to modiñcations and alternative constructions, I the resetting of the pressure release mechanism. have shown in the drawings and will herein de A further object resides in the provision of a - scribe in detail the preferred embodiment, but it laundry machine embodying a wringer having a is to be understood that I do not thereby intend roll-pressure release mechanism and a circuit to limit the invention to the speciñc form dis breaking device, both of said parts being operable closed, but intend to cover all modifications and alternative constructions falling within the spirit by a single actuator, each requiring separate ma and scope of the invention as expressed in the nipulations or acts on the operator’s part to re Another object is to provide a novel structure - condition the parts for operation, and having such relationship that placing and holding the circuit breaking device again in operative .condi tion must invariably follow resetting of the re appended claims. In the drawings a preferred form of laundry machine has been shown merely for illustrative purposes. Laundry machines usually embody, in addition to a wringer mechanism, a tub for wash lease mechanism. . _ More specifically stated, an object is to provide ing fluid, an agitator therein and a prime mover or driving motor for the agitator which motor a wringer having safety release mechanism asso ciated therewith and a circuit breaker in the . customarily serves to drive thewringer mecha nism as Well. Of these parts it is deemed neces power circuit to the prime mover, said mecha nism including an impact member eiïective upon sary, for the purpose of disclosing the present in\ movement from a normal “set” position to re 40 lease the operating pressure on the wringer rolls, said circuit breaker having a. partmechanically engageable with said impact member only when said member is in its normal position and spring urged for movement when released from said en gagement to break the circuit and to assume a re mote position precluding the possibility of acci dental reengagement and from which it may only Abe returned by a positive, intentional act on the 5 o part of the operator. 5 vention, to show only thewringer mechanism, generally indicated at I0 (Fig. 1) and the prime mover which is vdiagrammatically illustrated at II as being an electric motor. ` The wringer structure embodies a frame having side stiles I2 and I3 connected by a base Il and a ' separable head or cross bar I5 arranged to fit telescopically over the upper ends of the side stiles. In the side stiles, which are channel shaped, are lower half-bearings I6 resting on fixed pins I1 in support’of the ends of a shaft I8 Other objects and advantages will become ap which carries a lower wringer roll I9.` Also parent in the following description and from the mounted in the side stiles are upper half-bear accompanying drawings, in which: ings 20 which rest upon the ends of a shaft 2| carrying the upper -wringer roll 22. A leaf spring 23 has its ends engaging the upper faces of the 55 Figure 1 is-a partially diagrammatic view of a 55 N', laundry machine- embodying the features ofthe 2,133,234 bearings 20 and is carried by a suitable device 24 extends through correspondingly angular aper on the head I5 for tensioning the spring »23 to tures in the side walls of the stile and for a sub apply a yielding operating pressure to the rolls stantial distance therebeyond. -It is preferred I9, 22 through the upper bearings. One of the that the rod have anormal central position to wringer roll shafts (herein the >lower shaft I8) is ward which it is constantly urged by such means power driven from the motor IIî through suitable as springs 4I) of equal tension, each bearing be and conventional driving connections which in - tween one side of the stile and a central pin 4I clude a shaft 25, a clutch (not shown) mounted extending transversely through the rod 39. Re in the gear box 26, and a detachable connection gardless of the direction in which the rod 39 is 21, between the clutch' and lower roll shaft I8. moved longitudinally, one or the other of the 10 The wringer frame, as shown, is; rigidly supported springs 40 will exert a force for returning the rod by a bracket 28 on the gear box assembly. For relieving or releasing the operative pres sure between the wringer rolls in an emergency, 15 means, usually termed a safety release mecha nism, is provided and in the present embodiment to its normal position.A The rod 39 carries a ñnger 42 located externally of the side stile for engagement with the upper end of the lever 38 when the rod is in its normal position.~ This 15 engagement between the finger 42 and lever 38 is the mechanism preferably embodies an actuator effective to4 hold the catch device 34 in engage»- _ for effecting operation of the mechanism and means for preventing return of the actuator to its 20 normal or starting position until the mechanismis manually reconditioned or reset. With par ticular reference to Figs. l and 3, the safety release mechanism in this instance comprises the following arrangement of parts. A quickly de 25 tachable interengagement between one end of the head and _its corresponding side stile is provided which, in this instance, is in the form of inter engaging shoulders 29 on the head I5 and side stile I2 formed by striking out corresponding 30 portions from the respective members. 'I'he other end of the head carries a depending latch ing member 30 in the form of a U-shaped stirrup which is pivotally secured as at 3I to the head and is arranged to extend therefrom down 35 wardly into the corresponding side stile'I3 in embracing relation to the bearings and shafts which are disposed in that stile. The pivotal connection 3| between the latching stirrup 30 and the head preferably includes horizontally 40 elongated slots 32 which permit of a limited hori zontal shifting movement of the latching stirrup relative to the head. The base 33 of the latching stirrup is disposed near the base I4 of the wringer frameand said 45 frame carries a catch device 34 which is movable for engagement with the base of the ylatching stirrup. The catch device_34 preferably. com ' prises a member of generally U-shaped cross section positioned‘between the sides of the frame base I4 and pivotally mounted thereon for move ment on' a horizontal axis by such means as a l stud 35 which extends through ears 36 on the framebase and through suitable apertures in the spaced arms of the catch device. The catch device on its upper surface has a pair of trans versely alined hooks 31 fashioned to engage the base 33 of the latching stirrup. The arrange ment with the base 33 of the latching stirrup as shown in Fig. l. If, however, the rod 39 is shifted longitudinally in either direction, the finger 42 is lmoved out of engagement with the lever 38 whereupon the force exerted by the spring 23 is effective to move the head and the latching stir rup 30 upwardly thereby breaking the engage ment between the catch device 34 and the latch ing stirrup. Once this movement has carried the head above the side stile I3, the head may move horizontally a distance ample to disengage the shoulders 29. These disengaging movements, of course, are practically instantaneous and result in a complete disengagement of the head from the side stiles whereby entirely to relieve the Wringer rolls from the pressure exerted by the spring 23. Means is provided for preventing an accidental return movement of the catch device 34 and lever 38 once the holding engagements of these parts have been broken. In this instance, such means . comprises an upwardly extending arm 38EL which is mounted between the spaced arms of the catcl‘. - device 34 on the lever 38. The arm extends through a suitable aperture 33a in the base 33 ' of the latching stirrup. Thearm 38a is of ample length to engage the base 33 in all positions of the latching stirrup relative to the side stile and 45 has an elongated surface 38b (Fig. 1) fashioned for engagement with the base 33 by which the catch device 34 is held out of latching engage ment with the base 33.V Opposite the lowermost position assumed by the base of the latching 50 stirrup, the arm is recessed, as at 38°, to allow the latch device 34 to swing into latched engagement with the base 33. Preferably, the surfaces 38b and 38c are connected by a` sloping cam-like sur face which >facilitates movement of the catch de 55 vice 34 to its inoperative position when the mech anism is tripped. Accordingly, after the holding ment of the hooks'3'l and their relationship to engagement of the catch device with the locking the pivotal axis of the catch device 34 is such stirrup has once been interrupted, the catch de- ' 4 60 that the catch device, cf and by itself, 1s incapa- , vice must remain in its inoperative position until 60 ble of maintaining a holding engagement with the head has been reassembled with the side stiles thev latching stirrup against an upward force to position the base 33 óf the latching stirrup op exerted longitudinally of said stirrup. Since posite the recess 38°. such a force is always exerted whenever the parts As shownin Figs. 1 to 3, inclusive, reciprocation 65 are assembled and the spring 23 is under tension, of the rod 39 to relieve the pressure between the 65 means is provided for holding the catch device wringer rolls is produced by actuators which are ' engaged with the latching stirrup. Thus, >one disposed for convenient manipulation by an op leg of an L-shaped lever 38 is rigidly afilxed to erator.' Only one actuator need be provided, al the arms of theÀ catch device in such manner _though two, located one on either side of the ' that, as may be seen in Fig. 3, the other leg of wringer, are preferable since most wringers are 70 the lever extends upwardly and externally of the intended and arranged to receive clothes from ' side either side. The preferred form of actuator com stile. y , ' » » . ' Approximately midway between the top and bottom of the side stile is a horizontal rod 39 `- which is preferably of angular cross section and prises a- U-shaped member 43, the base portion of .which extends between the side stiles in paral lelisz'n with the 'wringer rolls and about on the 75 3 `areaassa. line of the top of the upper wringer roll. The legs of the U extend downwardly along the op posite side stiles and, in this instance, are secured to the wringer frame at their lower ends by means of pivots 44 carried by brackets 45 on the frame. As shown, an actuator is mounted adjacent each side face of the wringer. At each end of the frame, the actuators are connected by such means as bars 46 so that the actuators move conjointly. 10 The ends of the rod 39 are arranged to engage the adjacentvside legs of the actuators, as shown in Fig. 3, whereby movement of either actuator towardor away from the frame will shift the rod 39 longitudinally to release the lever 38 and there 15 by trip the safety release mechanism. Figs. 5 and '1 and Figs. 6 and 8 show different modified types of actuators for effecting the same result. In Figs. 5 to 7, the U-shaped actuators are indicatedl at 41 and at either end have up 20 wardly 'extending rods 48 through which the through' the lever. The spring 61 exerts a force at all times on the contact=59 tending to separate the point 66 from the terminal 51. The contact arm 59 is normally urged toward engagement with the other side of the pin 69 by means of a spring 10 which is mounted on the lever 68 and bears between the arm and a pin and washer 1|, 12 -respectively on the lever 60. The spring 10 allows the contact arm to moveI relative to' the lever 60 after the point 66 has 10 engaged the terminal 51, thereby insuring a 'per fect spring pressed electrical connection which will'not be affected by wear. This arrangement also eliminates the need’of an exceedingly accu rate adjustment of the parts. The circuit breaker 15 55 is interposed in the usual manner in the power circuit of the motor Il as is indicated by the lead lines 1|, 12 (Fig. 1). ` As may be seen in Fig. '1, the circuit lbreaker is so mounted on the wringer frame that the 20 swinging movement of the contact arm 59 in breaking the circuit therethrough is in a direc tion away from the wringer' frame. In conse actuators are pivotally secured 'to brackets 49 (Fig. '1) located near the top of the wringer frame. As in the first described form, the actuators are preferably connected by bars 58 for conjoint -duence, the lever 60 in the opening movement of movement. In the form shown in Figs. 6 and 8, the switch contact will shift longitudinally away the actuators embody U-shaped members 5l from the wringer frame and at the same time, dueto the pivoting of the contact arm, the end rigidly secured together to form a unitary struc of the lever 60 nearest the wringer frame will ture by means of upper and lower bars 52 extend ing between the side arms of the member. The Ahave an upward swinging movement.` 'I‘he cir cuit breakeris so mounted on the wringer, and 30 30 bars are engaged and supported by grooved anti friction elements 53 whereby the actuator is particularly with respect to the bar 46 which con nects the actuators, that the end of the lever mounted on the wringer frame for shifting move ment relative thereto. In either of the4 forms nearest the frame is substantiallyv adjacent to shown in Figs. 6 to 8, inclusive, the relationship Vsaid bar. This end of the lever carries an engag between the bar 39 and the actuators is such that ing member such as a hook 13. The bar 46 car 35 the operator, by moving an actuator either toward ries a complementary engaging part also in the or away from the wringer frame, may relieve the nature of a hook 14. The hooks 'I3` and 14 are both of narrow width and are so related that en wringer rolls from operative pressure. An important feature of the present invention gagement between the two hooks is possible only 40 resides in the means. whereby driven movement when the safety release mechanism is set. Any 40 movement, therefore, of the actuators 43 in either of the wringer rolls may be discontinued or in terrupted simultaneously with the release of direction will break the engagement` between presure from the wringer rolls. Referring to Figs. the hooks 13 and 14 `to allow circuit breaking 1, 4 and 9, a bracket 54 is rigidly secured to the movement of the contact arm 59. In describing the operation of the device, it end of the side stile I3 and supports a casing 55 for a circuit breaking device or switch 56. In a will be considered that the mechanism is set for operation as shown in Fig. 1. The operator, preferred form, the switch comprises spaced ter minals 51 and 5B, a spanning contact arm 59 and a controlling or operating lever 60. The terminals 51, 58 are preferably mountednear the upper and lower parts of the casing as seen in Fig. 4. The lower terminal 58 is in the form of an elongated rod rigid with an insulating base 6|. One end of the contact arm 59 is apertured to receive the terminal rod and at this point is arcuately shaped, as at 62, so that the arm may rock easily over said insulated base. Such means as a spring 63, bearing between a washer 64 on the end of the terminal rod 58 anda loose washer 65 abut ting the contact arm, holds the arm against the base and at the same time insures an electrical connection between the terminal and arm. _ The other end of the contact arm 59 carries a contact point 66 arranged to engage the terminal 51. The contact arm is normally urged into a -circuit breaking position, as shown in Fig. 4. .To ‘ this end, the lever 60 extends (see Fig. 9) loosely through a central slot in the arm 59 and also, as shown in Fig. 4, extends loosely through elon gated slots in opposite walls of the casing 55. Surrounding the lever 60 is a spring 61 which bears between the adjacent >wall of the casing and a washer 68 or the like which is mounted on the lever 60 and is held against relative longi 75 tudinal movement in one direction by a pin .69 acting in an emergency, strikes or` pulls either one of the actuators 43 thereby moving the rod 39 to release the lever 38 and trip the safety release mechanism. Simultaneously, the hook 14 is carried out of engagement with the hook 13 and the motor circuit is broken. Consequently, not only are the wringer rolls relieved of their operative pressure, but the driven movement of 55 the rolls-is instantly discontinued. An important advantage is obtained by the re lationship of the parts after the mechanism has been tripped. Once the connection between the finger 42 and lever 38 has been interrupted, the 60 lever 38 swings in a direction which is transverse to the direction of movement of the rod 39 and across the path of movement of the finger 42. ’I‘he ñnger is of substantial width for sidewise en-gagement with the lever 38 when the lever has so moved. Consequently, since the lever 38 cannot accidentally return to its starting position, be cause of the relationship between the arm 38“ on the catch device 34 and the base 33 of the latching stirrup, the vsidewise engagement be tween the ñnger 42 and lever 38 is maintained until the wringer elements are returned to or reset in their operating relationship. Hence, after actuation of the safety release mechanism, the hook 14 is positively held at one side or the - 4 ' 2,133,234 other of the position in which it is. engageable 2. In a laundry machine, the combination of a by the hook 13 on the switch controlling lever 6B. . wringer frame, rolls mounted therein, means for » Furthermore, the hook 13, upon breaking of the engagement between the hooks 13 and 14, shifts horizontally away and also swings vertically up-, ward away from the only possible position of en gagement with the hook '14. By virtue of these movements, the hooks 13 maintaining the rolls under operating pressure, safety release mechanism for relieving such pres sure, connected actuators for said mechanism and 14 are both shifted to a remote position 10 where accidental reengagement thereof is im mounted on opposite sides of said frame for move ment toward and away from said frame, engage able means movable with said actuators, a prime mover for driving said rolls including a power cir cuit, a circuit breaker interposed in said circuit, 10 a contact controller having a part fashionedfor connection with said engageable means, spring means tending at alltirnes to move said part out mechanism before the hook 13 may be caused to Y of engagement with said engageable means, and 15 engage therewith. Moreover', the hook 13 can means for holding said engageable means out 0f 15 only be reengaged. with the hook 14 by a deñnite position for engagement by said part after said intentional act or manipulation of the control safety release mechanism has been actuated t0 lever 60 by the operator. To facilitate this move relieve the pressure on said rolls, whereby the ment, a ñnger piece 15 may be provided on the power circuit cannot be permanently reestablished 20 outer end of the lever 60. It should be noted until after the wringer rolls have been placed in 20 that the operator may, if desired, manipulate the operative condition. lever 60 independently of the safety release mech 3. In a laundry machine, the combination of anism to break the motor circuit and thereby in a wringer frame, rolls mounted therein, means for terrupt the driven movement of the wringer rolls maintaining the rolls under operating pressure. 25 without affecting the setting of the safety re safety release mechanism for relieving such pres lease mechanism. sure, an actuator for said mechanism movable From the foregoing, it will be evident that a toward and away from said frame and fashioned laundry machine has been provided which mate normally to extend in a substantially vertical rially increases the operator’s factor of safety. plane along at least three sides of the space occu 30 By providing actuators for the safety release pied by said rolls when the rolls are under Dres 30 mechanism which .will function upon movement sure, a prime mover for driving said rolls includ thereof either toward or away from the wringer ing a power circuit, a circuit breaker interposed iframe, the operator may instantly relieve the pres in s'aid circuit, a contact controller having a hook sure between the wringer rolls and discontinue engageable with said actuator only when the cir 35 the driving operation thereof. The actuators are cuit breakeris closed and the actuator-is in the 35 so arranged that it becomes practically impossible normal position thereof, spring means tending at for the operator tobecome entangled in such all times to move said hook out of engagement fashion that the actuators'cannot or will not be with said actuator, and means for holding said moved either intentionally or unintentionally. actuator out of possible engagement by said hook 40 After the safety- release mechanism has been after actuation of said mechanism and prior to 40 tripped, it is impossible for any part to be acci resetting the device for operation. dentally returned to an operative position with 4. In a laundry machine, the combination of a Aresulting injury to the operator. Moreover, in frame, rolls mounted therein, means for main resetting 'the device the sequence of manipulative taining the rolls under operating pressure, safety 45 steps requires the operator to first recondition the release mechanism for relieving such pressure, a 45 wringer rolls for operation before the driving con movable actuator for said mechanism, a prime mover for driving said rolls including a power nection to the rolls can be reestablished. Con sequently, the operator cannot be injured by an circuit, a circuit breaker interposed in said cir accident resulting from driving the rolls while the cuit, a contact controller having a part engageable with said actuator to hold the circuit breaker in ° ' 50 wringer is not ready for use. circuit closing position, and means for holding I claim as my invention: 1. In a laundry machine, the combination of said actuator out of position for engagement by a wringer frame, rolls mounted therein, means said part after the safety release mechanism has been operated. _ for maintaining the rolls under operating pres 5. In a laundry machine, the combination of a 55 sure, safety release mechanism for relieving suchv pressure, actuators for said mechanism pîvotally wringer frame, rolls mounted therein, means _for connected one to each side of said frame for maintaining the rolls under operating pressure, movement toward and away from said frame and ' safety release mechanism for relieving such pres fashioned to extend along at least three sides of sure, a movable actuator for said mechanism, a 60 the space occupied by said rolls, said actuators prime mover for driving said rolls including a 60 being connected together for conjoint movement, power circuit, a circuit breaker interposed in said a hook movable with said actuators, a prime circuit, a contact controller having a part en mover for driving said rolls including a power gageable with said actuator only when the circuit breaker is closed, and spring means tending at all circuit, a circuit breaker interposed in said cir times to move said part out of engagement with 65 cuit, a contact controller having a hook engage able with said first mentioned hook only when the said actuator whereby movement of said actuator circuit breaker is closed and the actuators are in releases said contacty controllerto break said the position assumed when the rolls are under power circuit. 6. A wringer comprising, in combination, a pressure, spring means tending at all times to frame, wringer rolls normally maintained under 70 move said hook on said controller out of engage ment with said first mentioned hook, and means operative pressure, a safety release mechanism for .relieving the rolls of such pressure including for holding said first mentioned hook out of posi an' actuator moveable relative to said frame, a tion for engagement by said hook on said con troller as ~long as the safety release mechanism driving motor having a power circuit, a switch in is inoperative. said circuit including a normally open contact, possible. It will be evident, therefore, that the hook 14 must ñrst Vbe/returned to its engageable position by the resetting of the safety release 5 2,183,234 and means connected with said contact for de tachable engagement with said actuator to hold said Contact in closed position, said means having a combined shifting and swinging movement when said engagement is broken to a remote position where accidental reengagement with said actuator is impossible. 4and a disengageable connection between said ac tuators and said contact for holding said contact in circuit closing position. ' 11. A wringer comprising, in combination, a frame, wringer rolls normally maintained under operative pressure, -a safety release mechanism for relieving the rolls of such pressure, actuators ' 7. A wringer comprising, in combination, va for said mechanism comprising a U-shaped mem frame, wringer rolls in said frame normally main ber disposed on each side of the frame with the 10 tained under operative pressure, mechanism for _ base of the memberparalleling the wringer rolls releasing said pressure from the rolls including an and the 'sides .thereof extending downwardly. actuator mounted on the side of the frame for along the sides of the wringer frame, means ex >transverse movement toward or away from said tending between said members across either end frame, a driving motor having a power circuit, a of the frame for rigidly connecting said mem--15 switch in said circuit including a contact resil bers together for movement as a unit, guides- on iently urged toward an open'position, and means said frame engaging said means to support said 15 connected with said contact and engageable with members for movement toward and yaway from said actuator to hold said contact in closed Dosi . said frame, a circuit controlling the operation of tion, said engagement being releasable by said the wringer rolls, a switch in said circuit, and a transverse movement of said actuator in either disengageable- connection between said contactl 20 direction, said means having a combined shift and said actuators for maintaining a circuit ing and swinging movement upon disengagement from said actuator to a point where reengage ment can only be effected by an intentional ma nipulation on the part of the operator. 8. A wringer comprising, in combination, a frame, wringer rolls in saidv frame normally maintained under operative pressure, mechanism for releasing said pressure from the rolls includ 30 ing an actuator mounted on the side of »the frame for transverse movement toward or away from said frame, a driving motor having a powerl cir cuit and a switch in said circuit comprising a movable contact, resilient means tending at al1 35 -times to move said contact to its open position, an operating lever connected with said contact having means thereon f_or detachable engage ment with said actuator only when the safety release mechanism is set to allow operative pres through said switch. 12. In a wringer, the combination of wringer rolls, quick release means for holding said rolls in operative relation, electric driving means in 25 cluding a control switch, and means manipulable by the operator and independently connected with'said quick release means and said control switch> for effecting the release of -said rolls and opening of said switch together or independently 30 should either element fail to function, , 13. In a wringer, the combination of rotatable wringer rolls, >quick release mechanism for hold- y ing said rolls under operating pressure and oper able to release such pressure therefrom, driving 35 mechanism for said rolls, and means operatively connected with drivingl mechanism and said quick release mechanism for simultaneously actuating both mechanisms under normal conditions, the 40 sure upon the rolls, and an operator’s finger piece - connection with one mechanism being independ 40 on said lever. . _ ~ ent of the connection with the other mechanism> 9. The combination, in a wringer mechanism to insure of actuation of at least one or the other having rolls normally operating under pressure mechanism under all conditions. and means for driving said rolls, of mechanism14. In a wringer, the combination of separabley >for relieving such operating pressure, discontin frame sections having wringer -rolls supported uing means for interrupting the roll drive, and therein and means for applying tension to the a ‘positive connection between said mechanism rolls when the sections are operatively assem and said discontinuing means by which the roll bled, quickly releasable means for maintaining drive is held against interruption only as long assembly of said sections including an impositive ' as said mechanism is so conditioned that the latch, a transversely reciprocable member mountl 50. rolls- may be under operative pressure, said con nection having separable parts each movable away from the point of engagement when the safety release mechanism is actuated, said parts being reengageable only after the operator has reset said mechanism for'operation and posi tively retur ed the discontinuing means from the inopera ive position thereof in that sequenc of manipulative movements. , ' 10. A wringer comprising, in combination, a ed on one of said _sections and having a spring urged normal position, means connecting said latch-with said member in said normal position thereof to hold said latch- operative, means 'clis posed for manipulation by the'operator and asso 55 ciated with said reciprocablel member to move said member upon a pushor pull by the oper-> ator for interrupting the connection by which the latch was held operative, a switch, and means , for opening said switch as said quick release 60 frame, wringer rolls normally maintained under » means is operated to Arelease said sections. operative pressure, mechanism for relieving the ' 15. 'I'he combination, in a wringer mechanism rolls of such pressure, actuators for said mech anism comprising a U-shaped member disposed on each side of the frame with the base part thereof paralleling the wringer rolls and >with the sides extending downwardly along the sides of the wringer `frame, means for pivotally secur ing said members. to the frame near the top 70 thereof, means for connecting said members to ~ gether for conjoint movement, a'vcircuit control ling the operation of the Wringer rolls, a switch in said circuit having a normally open contact, having rolls normally operating under pressureß and means for driving said rolls, of a safety release mechanism for relieving such operating 65 pressure, discontinuing means for interrupting the roll drive, and cooperating parts correlated for engagement to connect said mechanism and said discontinuing means only by a manipulative act performed subsequent to the act of condi tioning the rolls for the imposition of _ operating pressure thereon. ’ ’ . y WALTER K». VOSS.