US843823A - Mechanical movement. - Google Patents

Description

No. 843,823. PATENTED PEB.12, 1907.

J. D. A. JOHNSON.` 'MECHANICAL MOVEMENT.

g APPLI-OATION PILED SEPT.28.1906..

2 SHEETS-SHEET 1.

110.843.823. EAlfEN-TED EEE. 12, 1907. AJ. D. A. JOHNSON." L MECHANICAL MOVEMENT.

AP-PLIOATION FILED SEPT.28.1906.

2 SHEETS-SEEN 2..

$3 I+ $3 Snowdon GEW mx@ UNITED 1 STATES PATENT or-Finitiv JOHN D. A. .ioHNsoN,loF OMAHA, NEBRASKA.

' mi-:HANICAL MOVEMENT.

braska, have invented certain new and Tuseful Improvements in Mechanical Movements, of which the following is a' specification.

' This invention relates to improvements mechanical movements of the class'adapted for use for washing-machines, churns, and

` other like machines where a reciprocatory r'otary motion is desired for the dasher or agitator, the latter being positioned in the tubn or receptacle' for moving the contents in a circular and then a reverse direction. The' invention is illustrated in connection with a i Washing-machine. l

The principal object of the invention is to present a mechanical movement which is actuated 'by a lever moved forward and backward in a manner to cause rotation of a balance-wheel in a continuous direction and to cause a'reciprocatory movement of the operating or vertical shaft.

Another object is the employment of a balance-wheel which will operate in a positionv closely adjacent to the cover of a washing-machine, said balance-wheel to have a movement practically free from vibration and which will supply a suieient momentum to assist in the movement of the lever.

The4 invention also has reference to certain features of construction -of a; frame made necessaryfor containing the devices shown aiid to the presentation of a slottedrack-bar considered new in connection with the lugbearing gear 4used therewithand to certain guide and. yoke construction' found con! venient.

With theseand other objectsin view the invention presents -a 'novel' construction and arrangement of parts, as shown herein and in the appended -elaiins, and as illustrated by the drawings, wherein-f Figure l represents a vertical'section of the invention, shown operatively mounted upon 'a washiriglmachine tub, the figure being sectioned centrally todisclese the mechanism. Fig: 2 'isa detailf-relating to Fig. 1, partly in section, being a plan view of the rack-bar and showing the pinion of the balance-wheel and base of .the annular yoke in section, being a view sectioned on the line a b of Fig. 1. Fig.

3 is la broken-away gure, being a detail re- Specication of Iletters Patent. Application filed September 28, 1906. Serial lNo. 336.610. I

.Patented Feb. 12, 1907.

latin -to I, paitly v in'l section, to more clear y show,certain'parts. Fig. 4 is a plan view of the bottom of the rack-bar, gear- Wh`ee12-9, and v yoke '18. Fig. 5 is a perspective view-of sleeve 13 'and engaging plate. Fig. 6 is a side'view of the inclosing capand 'yoke closing cap, as on line c 'c of F ig.9 1Fig. 8 is a broken-away view, being a perspective p rcsentation of a part of the rack-barto clearly the frame and showingva part of the rackf-bai".V

section, to show. relative position of parts.

Referring to the figures-in the drawings,

the legs, 3 the leg-braces,4-the tubcover and l5 .the wringer-stand of a'washing-machine, the legs being' extended vto form ribs of the tub.` These arts are old and common to washing-,mac ines. The4 devices employed.

now be explained.

I employ a vertical shaft 6,- which extends downward within the tub a short distance below cover 4, 4where by means of key 7 itis downward on a line with said shaft,` vprovid with tiens 9 land having an enlarged free end 10. The disk 11 having aseries ofprongs12, projecting downwardly and outwardly,- is adaptedto have a sliding vertical 4inovement ment of disk 1 1 is `limited by the ringer washer 11, seatechoni he disk-rod. The

ro s12ar eene.uon-toe e vldlotnhgiiig or ot di rticles top be laundlgeraegi, while the vertical shaft has its reciprocatory rotary movement, Aso that a thorough turning or agitation o f these articles maybe made during the process'of laundering. The use in the art. Y 'I employ a sleeve 13, Fig. 5, which vertically traverses cover 4, having the engaging plate 14'formed transversely upon its upper end. lPlate`f14 has bolt-apertures 1 5 and raised'bracket ends 16, these apertures corresponding to the a ertures 17 of the\ yoke 1S, Fig. 8. The en s of yoke 1 8 are seated cured to cover 4 "by means ofbolts 19. Fig.

10, passing therethrough. This is considered within the brackets 1-6 oi plate 14 and se- 6'0- i 18` looking across the center of cover 4A to lever 3,5.. F ig. 7 is a sectional view of the inl show the yoke 18; Fig. 9 .isa'plan-view of Fig-10 is a detail relating to Fig. v1., partly in the numeral 1 represents.; the wall of a tub 2.

by me are supported by the cover and will 'secured upon disk-rod '8,' the latter passing upon disk-rod 8.- This upward Sliding moveofthe disk and prongs lfor this'purpose is old Uil end of this pinion and seat therein and vuponv yoke 1S the seriesof balls 23. f

Transversely and rigidly secured upon shaft 6 ispinion 24, which has engagement within the horizontally-disposed rack-bar 25. Upon the outer end of pinion 26 and encircling the vertical shaft is a washer 27, and extending through'this shaft at'its upper end upon the outer face of the washer is key- 28. AThe vertical shaft furnishes a pivotal mounting for bal ance-wheel 21 and its pinion 26, the weight of this wheel and pinion resting upon the balls 23 and yoke 18. Yoke 18, as clearly shownby Fi 10, is supported upon the plate 14, and oes not make contact with pinion 24.` The vertical shaft therefore is not impeded Withthe weight ot these .parts and is free to receive actuation by any force brought to bear upon its pinion 24.

The wall of inclosing cap 20, (best shown by Figs. 1y and 9,) may be formed of any fanciful c-,icn work or grille-work, as represented by Fig. 1, or may have a plain outer wall, as shown by Fig. 9, without cha thel form or functions. One of the functions of inclosing cap 2() is to furnish a pivotal mounting, as at 55, for gear-Wheel 29, as clearly shown by Figs. 1 and 7, and therefore may be considered a yoke. Another function is to inc-lose gear-wheel 29, which other-V wise would be exposed, and, as already Stated, the inclosi-ng cap is the principal part of the frame.

The inclcsing cap comprises an upper circular horizontally-disposed Wall 30, Figzj', preferably apertured at its center to 'furnish a pivotal mounting 55 for gear-wheel 29 and formed with a substantially vertical side wall 31. which terminates" in an annular base 32. Base 32 andwall 31 are formedavith extensions which .areA opposite each other, one of 'these extensions being the yoke 18, the other being the curved arm 33 passing downward below the plane of cover 4 to furnish a piv`- otal mountingr at 34 for lever 35. Lever 35 has formed on its outer end the socket 36, adapted to seat therein a handle 37.

Upon lever 35 at 3S is pivotally mounted rack-bar 25. This rack bar' consists of side arms 39 and 40, held adjacent and parallel by the end pieces 41 and 42, and is continued outwardly from end piece 42 as a rod43 to the. mounting thereof at 38 upon lever 35.

End piece 42 is provided with a slot or aperture 44, Fig. 2, having parallel inner side walls 45 and 46, which are transversely disposed with reference to arms 39 and 4() and is provided with ends having lengthwise curved inner walls 47 and 48. v

The horizontal plane occupied by the rack.- bar is above base 32 and below gear-wheel 29 and is-u on the same plane as pinion 24, and said rac -bar horizontally traverses inclosing cap 20, the rod 43 of the rack-bar resting in aperture 49, arms 39 and 40 pass beneath the yoke 18, and the inner edges 50, Fig. 6, of the yoke operate as guides for these arms. Near the periphery of gear-wheel 2Q is rigidly mounted the wrist-pin 51, upon which is seatedpthe roller 52, Figs. 1-7, adapted to have a seating within slot 44.

From Athe description itwill be understood that lever 35 may be moved backward and lforward'in directions away from or toward the vertical shaft, and such movement will cause a corresponding rotation ofpnnon 24, which movement will be communicated to the vertical shaft, and in operation lever 35 is moved forward and then backward, so that. disk v11 and the prongs thereon will turn the contents ofthe tub with a horizontal swing, first in one direction and then in a reverse direction. During this movement the teeth of the rack-bar are kept in contact with the teeth of the inionof the vertical shaft by means 'of wal s 50 'of yoke 18.l Rod 43 will have a slight vertical swing; but aperture 49 in the inclosing cap is provided of a sufficient extent, so that there will be no contact to produce friction.

Arnzs 3`9 and'40 of the rack-bar slide upon project-ions 53, Fig. 10, thereby reducing the surface'` contact of these arms during this movement, and the slight vertical swinging movement of these ar'ins is provided for by an adequate height f yoke 18.

The roller 52 1s within slot 44 at all times,

and as the rack-.bar moves toward the vertical shaft the roller is pressed against the wall 45 of the slot, as is evident, and-wheel 29 made to rotate. The teeth vof wheel 29 lnake contact with the teeth of the pinion upon the balance-wheel, causing the latter to rotate. When the inward stroke of lever 35 is completed, roller 52 at that time reaches the center, longitudinally considered, of the slot, the Iron. entum of balance-wheel 21 carrying Wheel 29 pasta dead-center, and when lever 35 is rroved outwardly from the vertical shaft roller 52 commences to have a pressure upon wall 46 of he slot and graduall a proaches the oppe'iite end of said slot. Wlieel)29 therefore has a continuous rroveirent in one direction during operation. When the rack-bar is drawn outward, the roller will pass endwise of the slot again, but in a reverse direction. The roller travels from one ICO IIO

Usi

end of the slotte the opposite end, its funetion being simply to connect .gear-wheel 29v with the rack-bar, and as is obvious the roller travels the'entire surfaces of walls 45 and 46 of the slot for each revolution of wheel 29. Lever 35 causes rotation of gear-wheel 29 and pinion 24 by' the forward and backward' movement of the rack-bar, since the latter carries the roller along within its slot and at the same time aetuates pinion 24.

It is considered that the balance-wheel Ais situated in a position of advantage, since the center of gravity of all metal parts is very closely at the center of cover 4. The inclosing cap 2O is eut away at 54 to allow operative contact between pinionZG of the balancewheel and gear-wheel'29. A

It will be noted that pinion 26 has an adequate length, and thereby furnishes an extensive vertical seating for balance-wheel 21 and thereby operates in a manner to-lessen vibration.' This is considered of importance, since the balance-wheel -has a considerable' speed and would vibrate and have an uneven movement unlessa long vertical seating was provided. In the present construction the balance-wheel 4rotates swiftly, noiselessly, and without any uneven movement'.

It will be noted that the operation' of reciproeatory rotation of the vertical shaft is accomplished regardless of the direction of rotation of the balance-wheel or gear-wheel 29, the movement of these wheels bei wholly'independent of that ofthe vertiea shaft.

Having described the parts, any further statements as to operation is not considered necessary. It will be remembered, however, that the balance-'wheel is useful for; furnishing momentum for carrying the movement f prongs 12 when the latter engage the clothing, anal, as already stated, preventing the dead-center of gear-wheel 29. This momentum also assists a continued movement of the rack-har.

What l claim as my invention is-.-

1. A mechanical movement as described, comprisingr a vertical shaft, a pinion rigidly mounted thereon between its ends; a horizontally-dis osed rack-bar mounted'engagingly with t ie rigidly-mountedv inion of the vertical shaft and having a orizontallyextending oval trackway formed transversely upon one of its ends; apinion seated pivotally on said vertical shaft and having a part of its peripheryextended tn form a balancewheel; a luirizfmtally-disposed rotatable annular gear engagingr the pivotally-seated pinion en said vertical shaft and having an arm thereon transversely formed and extended to a seating within the oval tracknwuufnrnwd upon the end of. the rack-bnr; and rin-:Ins tf canse a long! l=.\ isge movement el the melt-bur. v

:2. A imei-:unical movement as described,

zontally-dis comprising a vertical shaft, a'pinien rigidly mounted thereon between its ends; a horised rack-bar mountedengagingly with' t e rigidly-mounted pinion of the vertical shaft and having a horizontally-extending do .ble-faced trckway formed transversel y upon one of its ends; a pinion seated pivotally on said vertical shaft and having a part of its periphery horizontally extended to form a balance-wheel; a horizontallydisposed rotatable annular gear engaging the pivotally-seated pinion on said vertical shaft and having an arm thereon transversely formed and extending to a seating within the double-faced trackway formed upon the end of the rack-b ai' and means to cause a lengthwise movement of the rack-b ar.l

3. In a mechanical movement, the combination ofa vertical shaft, a yoke, a horizontally-dis osed rack-bar, a pinion rigidly mounted) upon said vertical shaft; said yoke having a transverse seating upon said verticalshaft and having adjacent and downwardly-extending arms passing' said rigidlymounteddpinion, to form guides; said horizontally isposed rack-bar being formed with a lparallel and adj acently-extending guide-arm thereon and with a base portion thereon having a transversely-formed slot therein, Asaid rack-bar and connected guidearm being seated between said downwardly- 'extending arms of said yoke; a pinion seated pivotally upon said vertical shaft'and having a A art of lts periphery extended horizonta y to form a. balance-wheel; a horizontally-disposed rotatable annular gear engaging the pivotally-seated pinion upon the ver- IOO tical shaft and having an arm thereon transversely formed and extended to a seating Ywithin said transversely-formed slot of the base portion of sa'idrack-bar; and means to ause a lengthwise movementof said rackar. y

, 4. In a mechanical movement, the combination of a vertical shaft, a yoke, a horizontally-disposed rack-bar, a. series of balls, a pinion rigidly mounted upon said vertical shaft; said yoke having a. transverse seating upon said.vertical shaft and having adjacent and downwardly-extending arms passing said rigidly-mounted pinion, to form guides; said horizontally-dis osed rack-bar. being formed with a parallel and adj acently-extending guide-arm thereon, and with a base portion thereon having a transversely formed slot therein, said rack-bar and connected guide-arm being seated between said downwardly-extending arms of said yoke; a pinion seated pivotally upon said vertical shaft, formed with an annular groove upon its lower end and-having a part of its periphery extended horizontally to forni a balance-wheel;

gear engaging the ivotally-seated pinion upon the vertical shaft and having an arm- IIO .thereon transversely formed and extenledv serlspf balls being seated upon said yokey -v In testimony Where'of'lle has alzedhhis to a seating Within saidiransversely-forme'd l signature-in presenceof two Witnesses.v .v slotof the base portion of said raekfbamsaid JOHN- `D A JOHNSON- and in the annulargroove of said pvotally-l Witessem seated pnon; and means to eause a length- R.R..WOLEE,

Wise movement of said rack-bar. l

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