US1479194A - Gearing - Google Patents

Description

jam 1, 1924 T. H. MARS GEARING Filed Oct. 27 1921 2 Sheets-Sheet EL mww Jam 191% T. H. MARS GEARING Filed Oct. 2'7. 1921 2 shaets sheaz 2 10 ings, and to letters of reference marked thereon,

Patented Jan. 1, 1924. I

;: sir re THOMAS I MARS, or CHICAGO, ILLINOIS, AssI'GNoR T0- FEDERAL mam FFEfiE.

ELECTRIC COMPANY,

Oil! CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS GEARING.

Application filed Gctober 27, 1921 Serial No. 510,828.

Illinois, have invented certain new and use-' ful Improvements in Gearing; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawwhich form a part of this application. p

This invention relates to improvements in gearing and. consists of the matters hereinafter described and more particularly pointed out in the appended claims.

The object of the invention is to provide a simple-- andeflicient gearing, especially adapted for use as a speed reduction set, be-,

tween the driving motor of a domestic washof such a machine.

The advantages of the invention will more fully appear as I proceed with my specificaon. y

In the drawings:

Figure 1 is a view in front elevation of a domestic washing machine of the cylinder type to which my improved gearing has been applied;

V Figure 2 is an enlarged detail view in elevation of the parts shown in the middle of Figure 1 and which operate to impart an oscillatory movement to the washing machine cylinder:

Figure 3 is a view in side elevation of the parts shown in, and as viewed from, the left hand side of Figure 2;

Figure 4 is a view inelevation on an enlarged scale of a box containing my improved gearing, the cover plate being removed to more clearly illustrate theinterior thereof;

Figure 5 is a vertical sectionalview taken on the line 5-5 of Figure 4; and

Figure 6 is a horizontal sectional View taken on the line 6-6 of Figure 4.

Referring now in detail'to that embodiment of the invention illustrated in the accompanying drawings :10 indicates the main support for the gearing which as illustrated herein is the frame of a washing machine of the cylinder type. The frame in eludes a tub 11 which is mounted at its cormg machine and the operating mechanism 1 ners upon front and rear pairs of upright legs, only shown in th1s instance. Said front pair of legs are connected at their top and bottom ends in the usual manner 'so as to brace the frame as a whole.

The tub 11 has a rounded bottom wall which merges into the upright side walls and includes upright, flat front and rear end walls. The front end wall'13 is spaced inwardly from theplane/of the front legs 12 to provide a compartment or space between said front wall and legs, in which my improved gearing is located.

14 indicates the clothes receiving cylinder which is mounted in the end walls of the tub in any convenient manner so as to be capable of anoscillatory movement of a predetermined amplitude. Said cylinder is detachably connected to a horizontally disposed, longitudinally extending operating shaft 15, journalled in the front and rear upright arms 16 and 17 of a bearing stand ard orbracket 18 located in the compartment between the front wall 13 of the tub and the front legs 12. The axis of the operating shaft is of course coincident with the axis of the cylinder 14. Preferably this bracket rests upon and is secured to a transversely extending support in the form of a wide channel bar 19 that is secured to the main frame in any suitable manner.

Fixed to the operating shaft 15 between the armsof the standard is an operating arm 20 which is connected by a short link 21 with a shaft 21 carried at the top end of a radius arm 22. This radius arm is fixed to the front end of a shaft 23 journalled in the bracket arms 16 and 17 below that of the operating shaft. The radius arm 22 is located in a plane in front of the arm 16 of the standard 18. Rotative with but slidable on the operating shaft 15, between the hub of the operating arm and the rear arm of the standard 18 is a clutch collar 24 (see Figure 3) which may be moved into and out of engagement with clutch teeth 25 on the hub of the operating arm 20. A. transversely disposed rod 26 is provided for shifting the clutch, the rod having a handle 27 without the plane of the left hand leg 12 for actuating the same.

It is apparent from the foregoing description that when the clutch 24 is engaged with the legs 12 of the front pair being the; teeth 25' on the operating arm 20 and an oscillatory movement is imparted to the radius arm 22, a like movement is imparted to the operating shaft through the link 21 and operating arm 20. It is manifest from an lnspectlon of Figures 1 and 2 that on account of the fact that the operating arm 20.

By reason of'such arrangementof parts the.

operating arm 20 is oscillated at a slow, uniform rate at bothlimits of the movement and with a uniform acceleration in both directions between said limits. A

. The mechanism for imparting an oscillatlng movement to the radius arm 22 is as follows. Mounted on the supporting member or bar 19 at one side (the left as shown herein) of the plane of the operating shaft 1s a rectangular box or casing 30. Said box,- whichis open at the front, has spaced feet 31 on its bottom wall and a lug 32 on its left hand side wall, to receive the screws which attach said box to the channel bar 19 and to the adjacentleg 12. The open front end of the box or casing is closed by a removable front plate 33, and journalled in suitable bearing openings in said frontplate and the-rear wall of the casing is a plurality of longitudinally extending driven and drive shafts 34, 35 and 36 respectively.

- The shafts 34, 35 which are the driven shafts, arelocated in'the same horizontal plane, near the top of the casing while the shaft 36, which is the drive shaft, is ar ranged below the plane of saidshafts 34, 35 and closer to the right hand end wall of said casing. Fixed to the shaft 34 just without the rear wall of the oasing,-is a crank arm 37 which is connected by a link 38 to the pin or shaft 21? carried at the top'or free end of the radius arm., Fixed to the shaft 34 just within the rear wall of the casing is a substantially large spur gear 39 which meshes with a spur pinion '40 on the: shaft 35 near said rear wall. Upon the shaft 35 approximately midway between the front and rear walls of the casing is a spur gear 41 of substantially, the same. size as .the gear 39. The gear 41 meshes with a pinion 42 on the drive shaft 36, the pinion .42 bingabout the same size as the pinion 40. Just without the front wall or cover 33 of the casing andfixed to the projecting end of the drive shaft 36, is a grooved pulley wheel 43. This pulley wheel is driven by a belt 44 from a Smaller pulley 45 on the armature shaft of an electric motor 46, mounted on the supporting member or bar 19 near the right hand 1e 12.

It is apparent 'that'w en the motor is driving the pulley 43, the crank arm 37.

which drives the radius arm 22i's rotated.

'ing, a motor on at a relatively slow speed through the reducing gears 42, 41, 40 and 39 respectively.

Journalled in the top wall of the casing in the vertical plane'of the shaft 34 is an upright shaft .47.. Tothe bottom end of this" of the casing. The top end of the upright shaft 47 extends into a suitable gear box 50 located in a plane above the top-of'the. washing machine and to said gear box is secured a clothes wringer 51 which may be swung in a horizontal plane about the shaft 47 as an axis into the desired position and then looked therein in any suitable manner. The gear box 50. has a cover 52 and contains the reverse gears for the rolls of the wringer which are controlled by a shifter handle 53..

' The advantages. of the mechanism abore described is apparent. of parts may be fully assembled before they are installed in place upon the machine, the location ofsaid units properly distributing the Weight thereof to provide an even balance. The gear casing 30 is adapted to be packed with and hold a suitable lubricant, so are eliminated. The parts are simple in construction and that noise and vibration pose,-so that heavy castings areeliminated and the weight of the finished .machine is materially reduced.

While in describing my invention 1 have referred to certain details of mechanical construction and arrangements of parts, I do hot wish to be limited thereto except as may be pointed out in the appended claims.

I'claim as my invention j 1. In a gearing for washing machines, in combination with a body including an upright pair of legs and a wall spaced back from the plane of the outer face of said legs, a bar fixed adjacent said wall and extending transversely between said legs, an

upright bracket fixed to the lniddleof said means foroperatin said rock arm includsai bar at one side of said bracket, a .crank arm at the other side of said bracket, and a speed reduction unit for connecting said crank arm and motor comprising a box attached to said bar adjacent said crank arm and open in front, a removable closure for said open front, said closure and the opposed back wall of said box having associated bearing recesses, parallel drive, driven, and intermediate shafts journ'alled in said bearing recesses, reduction gearing connecting said' shafts, the driven shaft projecting as a stud through the said back wall and there having fixed to it said crank arm, and the drive shaft projecting as a stud throughsaid front wall,

The several units efficient in operation for their intended puranda pulle fixed to the projecting end of tion gearing connecting said drive s aft and being operatively con- "nected to said motor.

2. In a gearing for washin 'machines, in combination with fixed to said body, an upright bracket fixed intermediate the ends of said bar, a rock armcarried by said bracket, a motor for operating said rock arm, supported on said bar at one side of said bracket, a crank arm at the other side-of said bracket, and a speed reduction unit for connecting said crank arm and motor comprising, a box attached to said bar adjacent said crank arm, said box being open in front, a removable closure plate for said open front, said closure plate and the opposed back wall of said box having aligned bearing recesses, parallel drive, driven, and interemediate shafts journalled in said bearing recesses, reducsaidshafts, the driven shaft projecting as a stud through the back wall "and there having fixed to it said crank arm, and the drive shaft projecting as a stud through said front wall, and a pulley fixed to the-projecting end of said drive shaft and being operatively connected to said motor.

3. In a gearing for washing machines, in combination with a body, "a horizontal bar fixed to said body, an upright bracket fixed intermediate the ends of said bar, a rock arm carried by saidv bracket, a motor for opcrating said rock arm, supported on said bar at one side of said bracket, a crank arm at the other side ofsaid reduction unit for connecting said crank arm and motor comprising, a boxattached to said bar adjacent said crank am, said boxbeing open in front, a removable closure plate for, said openfront, said closure plate and the opposed back Wall of said I box having aligned bearing recesses, 'parallel drive, driven, and intermediate shafts journalled in said bearing recesses, reduc tion gearing connecting said shafts, the driven shaft projecting as a, stud through the back wall and there having fixed to it said crank arm, and the drive shaft projecting as a stud through said front Wall, a

a body, a horizontal bar bracket and-tmspeed pulley fixed to the projecting end of said drive shaft and being operatively connected to said motor, the .top wall of said box being provided with a bearing in the plane of the driven shaft and an auxiliary shaft havin bearing therein and 'operatively connecte to the driven shaft within the box.

4. In a gearing for washing machines, in I combination with abody, a speed reduction unit adapted to be attached to said bod comprising, a casing open atits front en, and-including a rear wall and top, bottom and end, walls, a front plate for closing the open end of the casing, longitudinal, parallel drive and driven shafts journalled in the rear wall and in vthe front end plate of the casing, a crank arm fixed to the driven shaft without the rear wall of the casing, a

pulley fixed to that end of the drive shaft without the'front plate of the casing, and

in the casing. r

speed reducing gearing on said shafts with- 5. In a gearing for washing machines, in

combination with a body, a speed reduction unit adapted tO'lJG attached to said body comprising, a casing open at its front end and including a rearwall and to bottom and end walls, a front plate for c osing the open end of the casing, a drive shaft, a driven shaft and an intermediate shaft, all journalled in said rear wall and said front plate in parallel arrangement, speed reducing gears on said shafts within the easing, a crank arm on the. driven shaft without the rear wall of the casing, a member on the drive shaft without the front wall of the casing, an upright shaft journalled in the of the driven shaft, and intermeshing bevel gears on said upright shaft and driven shaft;

In testimony that I claim the foregoing as my invention, I atlix my signature 1n the presence of'two witnesses, this 14th day of October, A. D. 1921;

I Witnesses CLARENCE E. MEnLHoPE,

' T. H. Amos. 7

THoMAsH-MARs; g

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