Патент USA US2412078код для вставки
Dec- 3, 1946- F. BRECKENRIDGE ETAL 2,412,078 WASHING APPARATUS Filed June 4, 1943 2 Sheets-Sheet 1 RR5m . L FLRIBn5Y KRAmwa “V RN nV50 N F'lcLi. 0 E Wm mmo D66- 3, 1946- F. BRECKENRIDGE ETAL 2,412,073 WASHING APPARATUS Filed June 4, 1943 '2 Sheets-Sheet 2 FIG. 2. » Fla" 3' INVENTORS FRANK BRECKENRIDGE LEE R.Bovo. ' BY - ATI'O EY 2,412,078 Patented Dec._3, 1946 I UNITED STATES PATENT OFFICE 2,412,078 wAsnmo ArrAnA'rUs ' Frank Breckenridge and Lee E. Boyd, Mans?eld, Ohi0, assignors to Westinghouae'Electrlc Cor poration, East Pittsburgh, Pa" a corporation of Pennsylvania‘ Application June 4, 1943, Serial No. 489,626 4 Claims. (CL 88-139) 1 Our invention relates to washing apparatus and has for an object to ‘provide improved apparatus of this kind. A further object of the invention is to provide improved motor-driven means ,for removing ' washing water from a washing machine. ' . 2 stantially perforate throughout its extent, a few of the perforations being shown at 26. A plurali ty of vanes 21 are oircumferentially spaced with in the basket 22 and extend radially inwardly thereof. As is well understood, the vanes 21 are employed for agitating the fabrics in a body of washing water, the level of which is indicated by the broken line ‘A, during rotation of the basket A still further object of the invention is to pro vide, in a power-operated washing machine, im proved means for driving the washing machine 22, whereby a cleansing action is effected. The and for removing washing water therefrom, which 10 front wall 23 is provided with an access opening means is readily accessible for inspection or 28 which registers with the access opening I4 of cleaning. the tub. Preferably. the nozzle 2| is arranged These and other objects are e?ected by our within the access opening 28 of the basket, as invention as will ‘be apparent from the follow shown in Fig. 1, so that the water admitted to the ing description and claims taken in connection 15 tub is directed inwardly of the basket. with the accompanying drawings, forming a part The basket 22 is supported by a shaft 29 which of this application, in which: is rotated during the washing period at a rela Fig. 1 is a vertical sectional view of a cabinet ' tively low speed of, for example, 50 R. P. M.. and, type washing machine constructed in accordance during centrifuging of the fabrics, at a relatively with our invention; high speed of, for example, 475 R. P. M.. by means Fig. 2 is a rear view of the motor and pump of a two-speed mechanism, generally shown at assembly shown in Fig. 1; and 3|. and carried by the rear wall I 2 of the tub. As Fig. 3 is a perspective view of the front of the the construction and operation of two-speed apparatus. mechanisms are well understood in the art, no Reference willnow be had to the drawings further description of the same is deemed neces wherein we have elected to show our invention sary. It is understood, however. that the mech applied to a washing and spinning machine of the anism 3| is adjustable in order to select the so-called oblique-axis type. In this connection, speedat which the basket is to ‘be rotated. A it will be understood that our invention may be applied equally well to other forms of washers 30 suitable two-speed mechanism of the type shown at 3| is shown and claimed in the patent of H. E. whether or not centrifuging is carried into effect. Edwards, Patent No. 2,284,047, granted May 26, As best shown in Fig. 1, the washer includes a tub 1942. structure generally indicated at It and of frusto The two-speed mechanism is driven by a conical configuration, in that it includes a front wall ll relatively large in diameter and a smaller 35 grooved sheave 32 connected by means of a belt 33 to a pulley 34 driven by a constant speed elec rear end wall l2 which are connected by a di tric motor 35. The motor 35 includes a driving verging side wall iii. The front wall ll of the shaft '38 which supports the pulley 34 and the tub is provided with an access opening II for axis of which is substantially parallel to the the ingress and egress of clothing to be treated, which opening is closed by a suitably-hinged gas 40 oblique axis of the basket 22. The motor is car ried by brackets 31 and 38 which are secured at keted door structure IS. The tub I0 is provided their lower ends to hub portions of the motor 35 with a drain opening l8 formed in the lower in a well-understood manner. and which are sup most portion of the side wall l3 and communi ported by the tub structure Ill. Preferably. the eating with a sump l1 fonned within a ?tting I 8. Water for washing and rinsing the fabrics 45 bracket 38 is secured to the two-speed mechanism 3! and to the tub Ill. is conducted to the tub l0 through a conduit I 9 The tub I 0. the two-speed mechanism 3| and which terminates in a nozzle 2| arranged ad the motor 35 define major elements of a unitary jacent the periphery of the access opening I4. structure which may be supported in any well Arranged within the tub I0 is a basket struc ture 22 which closely follows the lines of the tub 50 understood manner within an enclosing housing generally indicated at 39. The unitary structure structure It in that it includes a relatively large may be fixed within the housing 39 or resiliently front wall portion 23 and a smaller rear wall 24 suspended therein. As the mechanism for sup which may be re-entrant, as shown. The front porting the unitary structure within the housing and rear walls 23 and 24 of the basket are con nected by a diverging side wall 25 which is sub 55 39 forms no part of the present invention, it has 9,413,078 not been shown for the sake of clearness and brevity. 4 off to relieve the pressure on the clamp ll. which ' is then moved angularly sufficiently to bring the The housing structure as includes a front wall clamp 64 out of registry with the projections ll having an upper portion 42 arranged in a 85, whereupon the clamp I4 and the cover I’! may plane normal to the axis of the basket 22 and be removed. provided with an access opening 48 registering Rotation of the impeller 52 is effected by a fric with the openings l4 and 28. The opening ll is tion wheel 66 carried by a stub shaft 81 and en closed by a hinged cover 44 of any well-under 'gageable with a second friction wheel 8,. ?xed to stood construction. The lower portion of the the motor shaft It. Preferably, a resilient tread wall ll is'provided witha relatively large open 10V I9 is provided on the face of the friction wheel ing 48 for permitting access to the lower portion 60. The stub shaft 61 is iournaled in a bearing 1 I of the housing is beneath the tub for servicing. which may be‘ moved upwardly a su?lcient The latter opening 45 is closed by a suitable door I amount to disengage the friction wheels II and n which may be hinged to the housing, as shown 68, whereupon rotation of the stub shaft C1 is at 41 in Fig. 3. 15 terminated. The journal ‘H is carried by a lever Washing water is discharged from the tub It 12 pivoted, as shown at 13, to the rear end of the by means of a pump generally shown at 50. which, motor 3!. Normally, the friction wheels 80 and in accordance with our invention, is carried by as are disengaged by means of a tension spring the front end of the motor Iii. In this position. ‘ll, one end of which is fastened to the lever ‘l2 the pump III is adiacent the front end of the tub 20 and the other end to a ?xed member, such as a where it is readily accessible for inspection or projection 15, forming a part of the rear bracket cleaning. In the cabinet type machine shown, 38. Engagement of the friction wheels I‘ and the pump 50 is adjacent the service opening 45 68 is effected by means of a solenoid 18 carried in the lower portion of the housing 39. As shown, by the bracket 38, and the movable armature ‘ll the pump is of the centrifugal type and includes 25 of which is connected to the lever 12, preferably a casing H, the front end of which is open. and by means of a tension spring 18. which encloses an impeller 52 carried by a stub The stub shafts 53 and 61 are connected by a shaft ll. The latter is :Iournaled in a bearing 54 shaft member 8i having tongue and groove con extending rearwardly from the casing 5|. The nections 82 and 83 with the stub shafts 53 and II, casing 5| includes a water inlet port 85 arranged 30 respectively. The shaft 8i may be formed of a on the rear side of the casing and connected by resilient material so that the axis of the stub means of a suitable conduit 58 to the ?tting i8. shaft 8‘! may be moved slightly out of align Preferably, the conduit 56 is connected to a nip ment with the axis of the stub shaft 53 when the ple 51 which is carried by the ?tting l8 and the friction wheels 68 and 68 are disengaged. It will upper end of which terminates in the sump l1 35 be understood that the impeller I2 and shaft Il above the bottom thereof. may be'driven from the friction wheel Bl by suit The outlet of the pump is shown at 58 con able driving means other than that shown, During the operating period, the solenoid ‘I6 is nected to a ?exible conduit 59 which extends out wardly of the casing I9. where it is connected to energized when the discharge of vltiated water a suitable point of discharge. As shown, the con 40 from the tub is to be effected. Accordingly, the duit 6! extends upwardly along the rear of the friction wheel 68 is moved into driving engage housing 39 to a point above the level of the water ment with the friction wheel 68 and the pump is line A so that. when the tub is ?lled with water rotated by means of a flexible shaft construction 8 I. Accordingly, water is drawn from the sump II to the level of the line A, the pump and the lower portion of the discharge conduit II are ?ooded. 45 on the tub I 0 and translated through the dis charge conduit 59 to the point of discharge. At Of course. at this time, it will be understood that the pump 50 is inactive. The casing 5| is pro this time, large objects which may be present in vided with mounting lugs. one of which is shown the basket 25, such as, for example, large size buttons, book matches or nails, will usually be at 6|. which lugs 6| are secured in any well-un derstood manner to the front end of the motor 35. 60 retained in the tub inasmuch as the perfora tions 28 are small enough to retain these articles The front end of the casing II is closed by a in the basket 25. However, any foreign matter removable cover 82. which is preferably made of which may pass from the basket to the sump I‘! transparent material. so that the impeller 82 may will usually be carried through the pump Ill and be observed without removing the cover 62. Ac discharged. However, foreign matter may'collect cordingly. the accumulation of any material in the pump casing ii at times and interfere within the casing Ii around the impeller 52 which with normal operation of the pump. If it is may interfere with the operation of the pump found that the discharge of water from the pump may be readily seen without removing the cover is below normal, the interior of the pump may be II. In this connection. it will be understood that we contemplate employing this ?uid discharge. 60 readily observed through the transparent cover 62. Also, the removal of any foreign matter col- ' system without the use of a strainer and. accord lecting in the pump is readily effected by remov ingly, lint or other foreign material may be passed ing the cover as described heretofore, after which from the tub to the pump, which material is or access may be had to the impeller chamber and dinarily discharged through the discharge con duit 59 to the point of discharge. However, any 65 the inlet and discharge ports. From the foregoing description, it ~will be ap accumulation of material in the pump may be parent that we have provided an improved wash readily observed without dismantling the same. ing machine employing a motor-driven pump for Preferably. the cover 62 is maintained in en gagement with the front surface of the casing Si removing vltiated washing water from the tub, by means of a thumb screw SI, the end of which 70 wherein the pumpis carriedby the front end of bears against the cover 62 and which is threaded the motor and defines a unitary ‘ construction in a clamp N, the ends of which engage outward therewith. In this location, the pump (may be ly-extending projections 85 formed on the casing conveniently connected to the drain of the tub and 8|. When‘ the cover 82 is to be removed, it will is also accessible from the front of the washer be understood that the thumb screw It is backed 75 for servicing or cleaning. when the washer is 8,412,078 enclosed by ahousing, the latter is provided with including a casing and an impeller arranged with a servicing opening in a front wall so that access ~ in the casing, a shaft for driving the impeller, means supporting said pump at the front end of to the pump is readily effected through said open ing. The pump in the position shown is readily driven by the main motor through the shaft ex the motor with the axis of said impeller shaft substantially parallel to the axis of the motor tending rearwardly from the pump to the pulley end of the motor. Accordingly, the motor and shaft and to one side of the motor, Ilrst andv second friction wheels carried by the motor shaft separately from the washer structure, after which and the impeller shaft, respectively, for driving the impeller. and means for engaging and dis ing water and having a drain opening formed in ried by the other end of themotor for‘discharg pump may be constructed as a unit and tested the motor and pump may be assembled to the 10 engaging said friction wheels for respectively' initiating and terminating operation of the. pump. washer as a unit. The manufacture and assembly 3. In apparatus for washing fabrics or the like, of the complete washer is thereby facilitated. the combination of a housing having a service While we have shown our invention in but one opening in a front wall thereof, a tub arranged form, it will be obvious to those skilled in the art that it is not so limited, but is susceptible of 15 within the housing for containing a body of wash ing water, a perforate basket disposed within‘ various changes and modi?cations without de the tub for containing the fabrics to be washed parting from the spirit thereof, and we desire, and movable about a generally horizontal axis, a therefore, that only such limitations shall be motor arranged beneath the tub and including a placed thereupon as are speci?cally set forth in the appended claims. 20 driving shaft having a pulley and a friction wheel fixed thereto adjacent one end of the motor, What we claim is: power transmission means connecting said'pulley 1. In a machine for washing fabrics, the com and the basket for driving the latter, a pump car bination of a tub for containing a body of wash the bottom wall thereof, agitating means ar-~ 25 ing washing water from thetub, said pump be ing disposed adjacent said service opening, a ranged within the tub for effecting a washing shaft for the pump extending rearwardly there action upon the fabrics, a motor for driving said from to one side of the motor, a friction- wheel agitating means and arranged beneath the tub, carried by the pump shaft and engageable with said motor including a shaft rotatable aboutan axis extending generally from the front to the 30 the ?rst-mentioned friction wheel, and means for engaging and disengaging the friction wheels for rear of the tub, a pump for discharging wash initiating and terminating operation of the pump. ing water from the tub‘ and including a casing 4. Inapparatus for washing fabrics or the like, having an inlet port communicating with the the combination of a housing having a service drain opening and a discharge port, an impeller opening in a front wall thereof, a tub for con arranged within the casing, a shaft for driving 35 taining a body of washing water and arranged the impeller, means supporting said pump at the within the housing, said .tub having a drain open front end of the motor with the axis of said im peller shaft substantially parallelto the axis of the motor shaft and to one side of the motor, a friction wheel rotatable with the motor shaft and arranged at the rear end of the motor, a second friction wheel for driving the'impeller shaft and means for engaging and disengaging the first and second mentioned friction wheels. 2. In a machine for washing fabrics, the com bination of a tub structure containing a body of washing water and having front and rear walls, ing in the bottom thereof, a perforate basket rotatable about an oblique axis and ' disposed within the tub for containing the fabrics to be washed, a motor disposed below the tub and having a shaft arranged substantially parallel to the axis of the basket, power transmission means connecting the ‘ motor shaft and said 45 basket for driving the latter, a pump carried by the front end of said motor for withdrawing water from the tub through said drain opening and ' arranged adjac'entsaid service opening, a shaft said front wall including an access opening, a for driving the'pump and extending rearwardly perforate basket disposed within the tub structure 50 therefrom to one side of and generally parallel for containing the fabrics to be washed and mov-. to the axis of said motor shaft, and friction able about a generally horizontal axis, a motor wheels fixed, respectively, to the motor shaft disposed beneath the tub structure for actuating and pump shaft, and means for engaging and said basket, said motor including a shaft rotat disengaging said friction wheels when initiating able about an axis substantially parallel to the and terminating operation of the pump. axis of the basket, a pump for translating water 65 FRANK BRECKENRIDGE. from the tub to a point of discharge, said pump LEE R. BOYD.