US861658A - Mechanical movement. - Google Patents

Description

PATENTED JULY 30, 1907.

3. D. A.'JOHNSON.

MECHANICAL MOVEMENT.

APPLICATION FILED 832128. 19064 2 SHEETS-SHEET l.

110i tn woes No. 861,658. PATENTED JULY 30, 1907. J. D. A. JOHNSON.

MECHANICAL MOVEMENT, APPLICATION FILED 8EPT.28.1908.

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JOHN D. A. JOHNSON, OF OMAHA, NEBRASKA.

MECHANICAL MOVEMENT.

Specification of Letters Patent.

Patented July 30, 1907.

Application filed September 28, 1906. Serial No. 336,611.

To all whom it may concern:

Be it known that I, JouN D. A. JoHNsoN, a citizen of the United States, residing at Omaha, in the cou-nty of Douglas and State of Nebraska, have invented certain new and useful Improvements in Mechanical Movements, of which the following is a specification.

This invention relates to improvements in mechan ical movements of the class producing a reciprocating rotary movement of a single shaft.

The primary object of the invention is to present a movement of this class, of few parts, which will be of simple construction, but 'effcctivc used in connection with washing machines.

The invention has reference to the employment of a central vertical shaft adapted to have a reciprocating. rotary motion from the transverse movement of a rackbar, the latter having sprocket-chain connection to cause rotation of a balance wheel found useful.

The invention. also includes means for operation by either machinery or hand-power, and has certain features of novelty and utility which will be more fully described hereinafter.

The immediate result to be attained is the rotation of the dasher or stirrer within the tub, in one direction and then in a reverse direction, from a forward and backward movement of the handdever.

In the accompanying drawings which represent the invention, Figure l is a perspective View of a washing machine the invention being shown mounted thereon in operative position, the figure having a broken away part to disclose the interior. Fig. 2 is a detail relating to Fig. 1, being a broken away View of the horizontal shaft and frame, introduced to show preferred construction for shaft bearings, the view looking centrally to the hand lever from the rear of the machine. Fig. 3 is a detail in section relating to Fig. 2. Fig. 4 is a plan view partly in section, showing formation of head of rack-bar and connecting means thereof with sprocketchain. Fig. 5 is a plan view of the invention introduced to show location of horizontal shafts.

Referring now to the figures of ,the drawing, the numeral 1 represents a washing machine having a tub 2, for holding water and clothes to be washed, suitably sustained upon legs 3, the latter having cross-pieces 4 passed and secured near the lower ends of the legs. The tub has a cover consisting of the stationary part 5 and connected to the latter, as by hinges, is the swinging part 6; the swinging part 6 of the cover has secured upon its under side a segmental leaf 7 which is a com- This plate extends from the center of the cover horizontally to the edge, and has the angularly formed arm 10 extending below the plane of the cover, terminating in the horizontal projection 11 upon the end ofwhich, at 12, is pivotally mounted the lever 13. Vertically seated upon the head 14 of plate 8 is the pinion l4 having a vertically disposed shaft 15 rigidly secured thereon, and extended downward traversing head 14 and passing within the tub. Slidably mounted upon shaft 15 is disk 16, having prongs 17 rigidly secured upon its under side. Slots 18 are formed transversely through the disk which are adapted to ride upon fins v19,

swing independent of shaft 15.

Upon the rear of cover 6 and near hinges 20, upon brackets 21 and 22,, as bearings, is mounted the horizontal shaft 23; and upon the outer end of shaft 23 is mounted the balance-wheel 24shaft 23 extends in a direction transverse to plate 8 and is extended across the end of the cover, and upon its inner end is mounted the sprocket-wheel 25.

' Upon brackets 26 and 27 as bearings, and disposed somewhat nearer the center of cover 6, and parallel with shaft 23, is shaft 26; and upon the inner end of shaft 26 is mountedthe sprocket-wheel 27. The upper end ,of lever 13 is provided with socket 28 within which a suitable handle 29 is removably seated. 1 provide a rack bar 30 having teeth 31 formed on side 32 thereof, the side 34 (Fig. 4) being smooth. The'outer end of the rack-bar is pivotally mounted at 34 upon lever 13 and passes centrally of the cover tocngage the teeth of pinion 14, being held to this engagement by means of the vertically disposed roller 35- (Figs. 45) and the inner end of the rack-bar is provided with the head 36 having the transverse projection 37.

As thus described wheels 25 and 27 are vertically disposed and occupy the same plane, said plane being parallel with and closely adjacent to the plane occupied by the rack-bar, this being an arrangement of parts extendingacross the central part of the cover. Upon the series of teeth 38 of wheels 25 and 27 is seated the sprocket chain 39, these teeth having well known bearings between the links 40 (Fig. 4) of 'the chain. Oneof the pivots of the chain, as pivot 41, (Fig. 4) formed of a length sufficient to traverse the head 36 and angular projection 37 of the rack-bar and is employed, whereby the rack-bar is pivotally secured to chain 39; and in operation, when lever 13 is moved forward .and then backward in a direction toward or from the center of the cover, teeth 31 of the rack-bar engage the teeth of pinion 14 and causes shaft 15 to be rotated first in one direction and then in a reverse direction, as is evident; and the rack-bar, which is attached at its inner end 42 (Fig. 5), will cause said chain to have a movement in a manner to rotate shaft 23, thereby causing rotation of the balance wheel 24.

,which prevent said disk from having a horizontal The inner end 42 of the rack-bar, during the lengthwise movement of the bar will have an upward. and

downward swing, and therefore pinion 14 has a sufli-.

cient length so that its teeth will have a constant ongagernent with the teeth of the rack-bar; roller 35, it

will-be remembered has a contact with the smooth edge 34, during the movement of the bar, thereby preserving this contact.

Teeth 31, have curved upper(Fig. 4) and lower ends so that they may have a smooth engagement with the teeth of pinion 14. During operation, chain 39, rides uponteeth 38 of wheel 25 and 27 in a smooth manner,

and shaftv 26 is employed for the single purpose of sustaining wheel 27 in an operative position.

It will be noted that balance "wheel 24 is useful for furnishing momentum for carrying themovement of prongs 17, when the latter engage the clothing. This momentum is also depended upon to prevent any dolayed movement of the end 42 of the rack bar when paming the-dead-center of wheels 25 and 27. A band indicated at 43 may be used upon wheel 24, such band to be actuated from any suitable source of power,; and shaft 15, thereby rotated, this being a substitute for hand power.

During the movement of head 36 of the rack-bar, it passes closely adjacent to wheels 25 and 27 the angular projection 37 however, causes the rack-bar to be positioned at all times sufficiently adjacent so that the rack bar does not come in contact with the wheels.

' It is an advantage as is evident to employ balls as at 44 for shafts 23 and. 26, and this preferred construction is shown by Fig. 3.

I have described the use of this movement in connection with washing machines, but this movement would be of utility for churns, or other machines of. that class, and therefore I do not wish to be understood as limiting its use.

Having given a full description, what I. claim as my invention is ;p

1. In combination, a mechanical movement as described said sprocket chain, and means to cause a movement of the rack-bar.

2. In combination, a mechanical movement as described, comprising a rack-bar, an idler pinion; a vertical shaft a pinion rigidly secured upon its upper end; a horizontal shaft disposed transversely with, reference to the rack-bar and a balance wheel mounted upon its outer end and a pinion upon its inner end; a flexible member connecting the idler pinion and the pinion'upo'n the inner end of the horizontal shaft; said rack-bar being mounted upon suitable hearings in a manner toengage the piuion'upon the vertical shaft and having its inner end secured upon said flexible member and means to cause a movement of said rack-bar. 7

3; In combination, a. mechanical movement, comprising a rackbar a vertical shaft a pinion rlgidly secured upon its upper end; a horizontal shaft disposed transversely with reference to the rack-bar and a balance wheel mounted upon'its outer end and a pinion upon its inner end; said rack-bar being mountedupon suitable hearings in a manner to engage the pinion upomthe vertical shaft; 9. connection between the pinion of the horizontal shaft and the rack-bar for causing a rotary movement of the pinion of said horizontal shaft from an endwise movement ofthe "rack-liar; and means to cause an endwise movement of said rack-bar.

In testimony whereof he has aiiixed his signature in presence of two witnesses. mm DQA. JOHNSON.

Witnesses:

R. R. WOLFE. R. G. WOLFE

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