US1590536A - Gearing - Google Patents

Description

June 29 1926. 1,590,536

1'. H. MARS GEARING' Filed June 25. 1924 2 Sheets-Sheet 1 J2 016/2751 flak/251212776025 Patented June 29, 1926.

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GEARING.

Application filed 311116 25,

' This invention relates. to improvements in; gearing for washing, machines and the like, and consists of the matters hereinafter (1 6.1 scribediandLmore particularly pointed onti ln 5 the. appended. claims.

The object of the inventionis vto produce asiniple and efficient gearing, and one comprising few parts, all capable of. be ng enclosed in an oil bath, for: operatingthe a l 10. ternating. rotary member of a washing H13", chine and the wringer mechanism usually carried by such a washingrnac-hine- This, and several other objects and'xade vantages of the invention, will appear more fully as I proceed with my specification.

In the drawings Fig. 1 is a front view ofa washingiinachine of familir type, provided with the usual water containing tub with an oscil lating rotary clothes container therein, said washing machine being driven by the iinproved gearing which is shown partly. in front elevation and partly in section.

Fig. 2 is a view representingahorizontal section through Fig. 1 'ina planefindicatedby line 2-2 in Fig-'1. V

Fig. 3' is a view showing part of the mechanism in a different positionthan that shown in l iga2 aswill'be more particularly pointed out later;

Fig. a is a detailed perspective viewof anactuating cam comprising one 'ofthe' elements of the improved-gearing;

llig- 5'is a detailed sectional view of a part of the gearing; the plane-of the'section beingind-ieated by the line 5'5 of-Fig. 2.

Fig. 6 is a -tran'sv'ersesectionof the-pafls shown in Fig; 5,' the plane of which' is indicated by the line 6 6 ,in Figz 5.

' Referring now in detail to that en-ibod-i} ment of the invention illustrated in the drawings:l indicates the main support for the gearing,-which as illustrated herein,

v is the frame of: a washing} machine-of the cylinder type. V The frame-includes a; rectangular-tub 11, which is-niounted'at its cor:

ners upon front and rear pairs of upright legs, only the legs 12 of the-front pair being showninthis instance. Said 'frontpair-of legs are connected att-h'eir top and 'bott'oml so as to brace theframeas awhole. The tub 11 has a rounded bottom wall which me'rges into the upright side walls and includesup M right front and rear-end walls." The front end wall 13 is spaced inwardly from the 192 Serial No 722,198.

plane of; the front legs 12 to provide acOnl-f part nent orjspa'ce between said front Walls, and; legs, in which the improved gearing is located;

1% indicates; the oloth-esireceiving cylinder which is; mounted in the end walls of-the. tub in any convenient manner so as tobe; capable of an oscillatory, movement. of the required; amplitude. Said cylinderis. detachably. connected to. a horizontally; dis.-

posed, longitudinally extending operating.

shaft 15.

1 6 infdicates a gear. case or box: which is mounted inthe compartment; or space. pro-L vidediin fronteof the walltli'land issupport, 6.Cl;011.a bar or platform 17, whichextends transversely across said. space and issuitably attached at: itsv ends .to the legs, 1212 of; the-frame. Said gear case hasan uprightzrearwall 18on=the rear faceof which is provided a bearing sleeve. 19. through which.v the shaft l5.ex tends 'At the forwardend of' saidshaft and within the box 16, the shaft has fixed to it preferably as an integral part of its construction, a

sine-W124. By means ofthis clutch 26-, the sleeve 2-imay be fixedly connected with the shaft=21, so as to rotate therewith.

27 indicates a cam whichis in the form of a flats-pool with a rectangular groove 28- in its periphery. Said camis hired on the sleeve 2-1 in plane eXten-dingat an angle to-the central axis of' the sleeve-2 The fork arms -embrace-the can} spoolf27 and are provided at thei-rends with rota-tive pins 29 having-sh'oesGO which engage in the rectangular' groove 2-8 of the cam. Said shoes being preferably providedat their sides with spacedf anti-ffict-iOrrrollers 31 for engage mentwithtlie sides-28 of the cam groove,

said anti-friction rollers being held in place by retainer plates 3232 on opposite sides of each shoe 30.

The construction is such that when the shaft 21 is rotated and the sleeve 24 is connected thereto by the clutch collar 26, said sleeve and its cam 27 will likewise be rotated and cause the fork to impart an oscillatory rotary movement to the shaft 15.

Secured to the shaft 21 adjacent to the bearing 23 is a worm gear 33. Said gear meshes with a worm 34 on a horizontal shaft 35 which is arranged in a plane below and extends at a. right angle to the shaft 21. The shaft 35 is journalled in suitable hearing sleeves on the front and rear walls of the gear case 16 and said shaft projects through a stuffing box 36 on said front wall and has fixed to it a pulley 37. Said pulley is driven by a belt 38 from an electric motor 39'which is mounted on that end of the platform 17 near the right-hand leg 12.

40 indicates an upright shaft which is j ournalled at its bottom end in suitable bearing sleeves formed on the casing 16 and its cover plate 16 respectively. Fixed to said upright shaft 40, within the casing 16 is a worm gear 41 which meshes with the worm 34 before mentioned. The top end of said shaft pr jects above the top of the washing machine frame and is journalled in a gear box 1-2. Said gear box which is capable of swinging movement about a hollow standard 43, through which the shaft 40 extends, contains the reverse gearing for the rolls of aclothes wringer 44 which is rigidly secured to one side of the gear box 42. A lever 45 is provided at the top of the gear box for actuating the reverse gears within said box while a second lever 46 is so connected to the bottom end of the gear box as to lock the wringer to the standard 43 in any one of the desired angular positions into which it may be swun The clutch member 26 on the shaft 21, is actuated by a lever 47 which is pivoted between its ends on a cross pin 48 carried by the cover 16 of the casing 16. The bottom end of said lever is forked as at 49 to straddle and engage the peripherally grooved end of said clutch member, while the top end 50 of said lever extends up through a suitable slot in the cover 16. To said top end of the lever is connected a horizontal rod 51 and said rod carries a knob at that end which projects beyond the left-hand side of the machine frame as shown in Fig. 1.

Assume that the motor 39 is running and is driving the shaft 35 through the belt38 and pulley 37. The shafts 21 and 40, being connected by the worm gears 33 and 41 respectively to the worm 34 on the shaft 35, will also be continuously driven in one direction. When the clutch 26 is engaged with the sleeve 24, said sleeve is locked to the shaft 21 and will rotate therewith. In the rotation of the sleeve 24 and cam 27 thereon, the fork 20 and the operating shaft 15 to which it is fixed, is caused to oscillate through a predetermined amplitude which as shown herein is 90,that is 45 on one side of center and 45 on the other side of center. By reason of the construction just mentioned, the oscillation of the clothes cylinder or container slows down towards the ends of the oscillations and is hastened or is faster at the point midway between said ends so that no undue shock or jar is imparted to the rest of the associated gearing and the torque on the driving motor is therefore greatly reduced.

As before stated the upright shaft 40 is driven continuously in one direction when the motor 39 is running. Thus through the movement of the lever 45, the action of the wringer rolls is readily controlled and said rolls may be driven in either direction, when the clothes cylinder is oscillating or is idle as when the clutch 26 has been shifted out of engagement with the cam sleeve 24.

By enclosing the clutch member in the casing 16, which contains a lubricant, it cannot become rusty, due to splashing water and therefore it will not stick and bind as heretofore. The entire gearing including the cam and fork on the operatingrshaft is enclosed in the casing 16 so that it is impossible for the clothing of the operator to become caught therein. Furthermore the noise of operation is materially reduced.

\Vhile in describing my invention, I have referred to certain details of mechanical construction and arrangement of parts thereof, 1 do not wish to be limited thereto except as may be pointed out in the appended claims.

I claim as my invention 1. In combination, a gear box having upright front, rear and end walls, a rotary, oscillatory driven shaft bearing in and extending beyond said rear wall, a driving shaft within said gear box with its axis of rotation extending at right angles to and intersecting the axis of rotation of said driven shaft, a sleeve loosely mounted on said driving shaft in the neighborhood of said driven shaft, a cam fixed to said sleeve and having a cam groove in a plane located in the angle between the axes of rotation of said two shafts and containing the point of intersection thereof, a fork fixed to the inner end of said driven member within said gear box and having arms operatively engaged with said cam groove at diametrically opposite points, an operating shaft bearing in the front and rear walls of said gear box, a worm and gear connection between said operating shaft and said driving shaft, a clutch member on said driving shaft adapted to connect said sleeve to said driving shaft, and an arm extending out of said gear box for operating said clutch member.

2. In combination, a gear box having upright front, rear and end walls, a rotary oscillatory driven shaft bearing in and extending beyond said rear wall, a driving shaft within said gear box with its axis of rotation extending at right angles to and intersecting the axis of rotation of said driven shaft, a sleeve loosely mounted on said driving shaft in the neighborhood of said driven shaft, a cam fixed to said sleeve and having a cam groove in a plane located in the angle between the axes of rotation of said shafts and containing the point of intersection thereof, and a fork fixed to the inner end of said driven member within said gear box and having arms operatively engaged with said cam groove at diametrically opposite points.

3. In combination, a gear box having upright front, rear and end walls, a rotary, oscillatory driven shaft bearing in and extending beyond said rear wall, a driving shaft within said gear box with its axis of rotation extending at right angles to and intersecting the axis of rotation of said driven shaft, a sleeve loosely mounted on said driving shaft in the neighborhood of said driven shaft, a cam fixed to said sleeve and having a cam groove in a plane located in the angle between the axes of rotation of said shafts and containing the point of intersection thereof, a fork fixed to the inner in the front and rear walls of the gear box, and a worm and gear connection be tween said operating shaft and said driving shaft.

4. In combination, a gear box having up right front, rear and end walls, rotar os- 'cillatory driven shaft bearing in an ex tending beyond said rear wall, a driving shaft within said gear box with its axis of rotation extending at right angles toand intersecting the axis of rotation of said driven shaft, a sleeve loosely mounted on said driving shaft in the neighborhood of said driven shaft, a cam fixed to said sleeve and having a cam groove in a plane located in the angle between the axes of'rotation of said shafts and containing the point of intersection thereof, a fork fixed ,to the inner end of said driven member Within said gear box and having arms operatively engaged with the cam groove at diametrically opposite point-s, an operating shaft bearing in the front and rear walls of the gear box, a continuously rotating upright driven shaft journalled in said gear box, and.

worm and worm gear connection between said continuously rotating driven shaft and said driving and operating shafts.

In testimony that I claim the foregoing as my invention, I affix my signature this 16 day of June, A. D. 1924.

THOMAS H. MARS.

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