US825087A - Mechanical movement. - Google Patents

Description

PATENTE D JULY 3, 1906.

J. H. & J. B. TAYLOR. MECHANICAL MOVEMENT.

APPLICATION FILED FEB. 12, 1906.

INVENTORS;

WITNESSES:

UNITED STATES OFFICE.

JAMES H. TAYLOR AND JULIUS BYRON TAYLOR, OF TOLEDO, OHIO.

MECHANICAL MOVEMENT.

Specification of Letters Patent.

Patented July 3, 1906.

Application filed February 12, 1906. Serial No. 300,65 8.

To all whom it may concern.-

Be it known that we, JAMES H. TAYLOR and JULIUs BYRON TAYLOR, citizens of the United States, residing at 'Toledo, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements in Mechanical Movements; and we do hereby declare the followin to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of-this specification.

Our invention relates to mechanical movements, and particularly to the class of mechanism employed for converting a continuous rotary motion into a rotary reciprocal motion, and it has reference more particularly to the use of such mechanism in connection with a washing-machine or the like, whereby the rubbing or agitating element is revolved first in one direction and then the other, and so on alternately and continuously during the operation of the mechanism.

The object of our invention is the provision of a mechanical movement of the kind described which comprises few parts, insures simplicity, durability, and inexpensiveness of construction, and which is thorou hly efficient and practical in its operation.

0 this end the invention consists of the novel features of construction and arrangement of the parts thereof, as is hereinafter more fully described and claimed, and illustrated in the accompanying drawings, in which- I Figure 1 is a top plan view of our improved mechanism. Fig. 2 is a central longitudinal vertical section of the same, taken on the dotted line as a: in Fig. 1; and Fig. 3 is a crosssection of the pivoted yoke, taken on the dotted line a m in Fig. 1 and illustrating the grooved guideway for the driving-pinion.

Referring to the drawings, 1 indicates the top of a tub or other vessel, in which the rubbing or agitating element is located. To this top is rigidly secured a plate 2, having an u wardly-projecting bracket 3 at one end, w 'ch bracket is provided with a suitable horizontal bearing for receiving the driveshaft 4, carrying at its outer end a balancewheel 5, having a hand-crank 6. At the opposite end of the plate 2 areformed the verti cally- alining bosses 7 and 8, which project in opposite directions from the upper and lower surfaces of said plate and are vertically bored, as at 9, to loosely receive the'vertical shaft 10, the lower end of which pro'ects within the associated tub or vessel an carries the agitating element. (Not shown.) The lower boss 8 is adapted to project within an opening in the top 1 of the tub or vessel and form a bushing therein for the shaft 10, while the boss 7 has its upper end broadened and concaved to form a bearing-cup for receiving the antifriction-balls 12 and the conical hub portion of the pinion 11, which rests on said balls. This pinion is carried by the shaft 10 and communicates power theretofrom suitable driving mechanism.

Pivotally mounted intermediate of the bracket 3 and boss 7 is a yoke or stirrup shaped rocking frame 13, which is formed at its outer end with a bearing 14 forreceiving the vertical stub-shaft. 15, projecting upwardly from the plate 2, and has its arms diverging and extending rearwardly and slightly upwardly to the horizontal plane of the inion 11. These arms are connected at t eir rear ends by the segmentalrack 16, whichdescribes the arc of a circle having said arms as its radii and has its teeth in mesh with the teeth of the pinion 11. Formed on the inner face of the frame or yoke 13 in opposition to the rack 16 and in parallelism therewith is an internally-toothed segmental rack 17, the teeth of which consist of inwardly-projecting pins, which are shown as having their inner ends connected by a plate 18, b which they are laterally braced and strengt ened.

A horizontal oscillatory movement is imparted to the frame or yoke 13 for the purpose of communicating a rotary reciprocal motion to the pinion 11 on the shaft 10, due to a meshing of the teeth of the drive-pinion 19 with the teeth of the segmental 17. This pinion is carried at the inner end of the shaft-section 4, which is driven by the shaft 4 and has universal connection therewith, as shown at 4", thus enabling it to have a vertical oscillatory movement and to take opposite sides of the rack 17 for the purpose 0 causing the frame or yoke 13 to move horizontally in opposite directions. The proximity of the universal shaft connection 4" with the u per end of the stub-shaft 15 prevents the caring-head 14 of the frame 13 from jum ing from said shaft during an operation o the machine.

The shaft-section 4 is guided in its vertirack.

in parallelism with the rack 17 and its end portions each describing the arc of a circle which the end of the shaft takes as its pinion '19 swings around the outer side of the last tooth of the rack 17 in either direction of movement, due to said pinion passing from one horizontal plane of the groove 21 to the other.

A flange or lip 23 projects upwardly from the plate 2 directly under the broadened portion 22 of the frame or yoke 13 and in ictional contact with its under surface, thus acting as a support for the inner or heavy end of said frame or yoke, on which it is adapted to slide in its swinging movements, and relieving the stub-shaft 15 from the lateral or binding strain which would otherwise be cccasioned. 24:, represents a hood or casin which is mounted over the pinion 11 an guards its point of engagement with the rack 16 and which is provided in its top with a bearing in which the upper end of the shaft 10 is journaled, as shown in Fig. 2, thus acting as a strengthening-support for that end of the shaft.

The operation of our device is as follows: The driving-shaft being set in motion, the pinion 19, which is in engagement with the segmental rack 17, causes the inner end of the frame or yoke 13 to swing horizontally on the pivot or shaft 15 until the end of the rack is reached. At this point the project ing end of the shaft 4, guided by the curved end of the grooved guideway 21, causes the pinion 19 to remain in engagement with the last tooth and be carried half around the same, so that it now takes the opposite side of the rack and causes it to move horizontally in the opposite direction. At the end of this reverse horizontal swing of the frame or yoke the end of the shaft-section 4, guided by the other curved end of the grooved way 21, is caused to move vertically and to maintain the pinion 19 in engagement with the tooth at the opposite end of the series during a half-revolution of such pinion and until it has moved to the opposite side of the rack, whereby the movement of the rack is again reversed. The shaft -section 4 is free to swing vertically, so that its pinion 19 rotates in a plane first above and; then below the path of horizontal movement of the rack 17 due to the universal connection between its outer end and the inner end of the drive-shaft 4, and it is guided in its vertical movement and prevented from horizontal movement by the vertically-slotted arm 20. As the inner end of the frame or yoke 13 swings first in one direction and then in the other the outer segmental rack 16 thereon, which is in engagement with the pinion 11, carried by the shaft 10, causes said pinion and shaft to have a reciprocal rotary movement, thus imparting a corresponding movement to the rubbing or agitating mechanism secured thereto.

With this construction of mechanismv it will be apparent that the jar and racking of the parts and the noise incident to the running of devices of this class in which the drive-shaft has a fixed bearing throughout its length and the swinging frame has a vertical as well asa horizontal oscillatory movement is reduced to a minimum and that its operation is eflicient and commercially practical.

Having thus described our invention ,what we claim as new, and desire to secure by Letters Patent, is-

In a mechanical movement, a driven shaft, a pinion carried thereby, a drive-shaft having a universally-jointed part, a pinion carried by said part, a stub-shaft disposed in proximity to the universal joint of the shaft, and an intermediate driving member mounted loosely on said shaft and adapted to oscillate thereon, said member being retained on said stub-shaft due to its proximity to the joint of the drive-shaft.

In witness whereof we have here unto signed our names to this specification in the presence 1 0b of two subscribing witnesses.

JAMES H. TAYLOR.-

JULIUS BYRON TAYLOR. Witnesses:

E. H. PRICE, WILBER A. OWEN.

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