US716028A - Mechanical movement. - Google Patents

Description

N 7|6,023 Patented Dec. I6, I902.

L. D. GIBSON.

MECHANICAL movsui'sm.

(Application filed Mar. 22, 1902.)

(No Model.)

UNITED STATES PATENT OFFICE.

LEVI D. GIBSON, OF THURBER, TEXAS, ASSIGNOR OF TVVO-THIRDS TO ROBERT LOFLIN, OF TIIURBER, TEXAS, AND HERMAN F. SOHEER, OF

DALLAS, TEXAS.

M ECHANI CAL MOVEMENT.

SPECIFICATION formingpart of Letters Patent No. 716,028, dated December 16, 1902.

Application filed March 22, 1902.

To all whom, it 77l/H/y concern.-

Be it known that I, LEVI D. GIBSON, a citizen of the United States,residing at Thurber, in the county of Erath and State of Texas,

have invented a new and useful Mechanical Movement, of which the following is a specification.

This invention relates to mechanical movements, and is designed to provide improved means for producing alternating rotary movements,and while this means may be employed for a variety of purposes it is particularly designed for imparting movement to the dasherstems of churns and also to the rubber stems of Washing-machines.

Another object is to convert a continuous rotary movement into alternating rotary movement, so as to adapt the device for manual operation through the mediumof a crankhandle and also to arrange the device so that it maybe conveniently mounted upon the'top or lid of a churn or washing-machine.

With these and other objects in view'the present invention consists in the combination and arrangement of parts, as will behereinafter more fully described, shown in the accompanying drawings, and particulary pointed out in the appended claims, it being understood that changes in the form, proportion, size, and minor details may be made within the scope of the claims without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings, Figure l is a perspective 5 View of an embodiment of the present invention particularly adapted for use in connection with washing-machines. Fig. 2 is a longitudinal sectional view thereof.

Like characters of reference designate cor- 4o responding parts in both figures of the drawings.

Referring to the accompanying drawings, 1 designates a base or support, which in one specific application of the invention may be 5 the lid or cover of a churn or washing-machine. Upon the top of this lid or support and at one side of the center thereof there is provided a bracket 2,which is fastened to the support in any suitable manner and preferably disposed substantially radially thereof.

Serial No. 99,471. (No model.)

At the outer end of the bracket rises a standard 3, and a corresponding standard 4 rises from the inner end of the bracket, this latter standard being provided with a longitudinal slot 5, which is disposed in the same plane with the two standards. The top of the standard 3 is provided with a notch or seat 6 for the reception of the operating-shaft, and the upper end of the standard 4 is provided with a lateral extension 7, which is directed away from the standard 3, and is provided in its upper face with a groove 8, the bottom of which lies in alinement with the bottom of the notch or seat 6.

Between the lateral extension 7 and the lid or support is an upstanding rotatable head 9,

which is provided with an upper pivot or trunnion 10, rotatably fitted in asocket or hearing 11, formed in the under side of the extension 7, and the lower end of the head is provided with a trunnion or pivot 12, mounted in the opening 13, formed through the support. It will be understood that the lower journal 12 may be extended to form a dasherstem, or it may be provided with means for connection with a stem or other part to be rotated; but as this forms no part of the present invention it has not been shown in the drawings. Throughout the greater part of the length of the head 9 there is formed a spi- 8o ral slot 14;.

A substantially horizontal drive-shaft 15 is mounted in the bearing-seat 6 and also in the groove 8, within which it is held by means of suitable inverted-U-shaped straps or bearing-clips 16. At the outer end of this shaft there is provided a crank-handle 17, and the intermediate portion of the shaft is provided with a double crank 18, which Works between the standards 3 and 4.

To transfer motion from the crank-shaft to the rotatable head 9 there is provided aconnecting-rod or link 19, the upper end of which is provided with a hook or eye 20 to embrace the outer end of the double crank and form a 5 loose or pivotal connection therewith. The lower end of the connecting-rod or link is provided with a lateral arm 21, which Works in the guide-slot 5 and also in the spiral slot 14 in the head 9, the outer end of the arm 21 I00 being bent laterally, as indicated at 22, so as to lie transversely across the slot 14, and thereby provide a head or stop to prevent endwise displacement of the arm from the slot.

From the foregoing description it will be understood that power is applied to the crankhandle 17, so as to rotate the shaft 15, and thereby apply an end wise-reciprocatory move ment to the link or connecting-rod 19. The upper end of the connecting-rod of course describes a circle with the crank 18; but its lower end works verticallyin a substantially straight line as the arm 2L is confined within the guide-slot 5, and as the arm reciprocates vertically and works in the spiral groove 14 the head 9 will be rotated in one direction during the upward movement of the arm and in the opposite direction during the downward movement of the arm, whereby alternating rotary movements are imparted to the head 9 by a continuous rotary movement of the crank-handle and power-shaft.

It is apparent that the device of the present invention is extremely simple and is particularly adapted for mounting upon the lid or cover of a washing-machine or churn in such a manner as to be readily connected to the stem thereof for operating the dasher or rubber. Furthermore, all of the parts are readily accessible for repairs, whereby it may be maintained in effective working condition and also be conveniently set up in position for operation.

WVhat I claim is 1. The combination with a base, of a pair of standards rising therefrom, one of the standards having a longitudinal slot, a spirally-slotted rotatable member mounted upon the base and adjacent to the outer side of the slotted standard, a power-shaft mounted upon the standards and having a crank working between the same, a connecting-rod pivoted to the crank and provided with a lateral arm working in the slot of the standard and also in the spiral slot of the rotatable member, and a head carried by the arm and extending transversely across the slot of the rotatable member to prevent displacement thereof.

2. The combination with a base, of a pair of standards rising therefrom, one of the standards having a longitudinal slot and also provided at its upper end with an outwardlydirected lateral extension, a rotatable spirally-slotted member having its upper end journaled in the extension of the standard and its lower end journaled in an opening formed in the base, a power-shaft mounted upon the standards and provided with an intermediate crank working between the said standards, a crank-handle upon one end of the shaft, and a connecting-rod having one end pivoted to the crank and its opposite end provided with a lateral arm working in the slot of one of the standards and also in the spiral slot of the rotatable member, the outer end of the arm having a head extending transversely across the spiral slot to prevent endwise displacement of the arm.

3. The combination with a lid or cover having a central opening, of a pair of standards rising from the lid at one side of the opening therein, the standard which is next to the opening being provided with a longitudinal slot, and a transverse extension at its upper end overhanging the opening in the lid and provided in its under side with a bearingsocket alined with said opening in the lid, an upstanding spirally-slotted rotatable member having a reduced journal at its upper end which is mounted in the socket in the extension of the slotted standard, the lower end of the rotatable member having a reduced journal projected through the opening in the lid with its lower extremity adapted for connection with a part to be driven, a power-shaft mounted upon the extension of the slotted.

standard and upon the top of the other standard, and provided with a crank working between the standards, an operating crankhandle carried by the outer end of the shaft, a connecting-rod pivotally hung from the intermediate crank and provided at its lower end with a laterally-projected arm working in the guide-slot of the standard and also in the spiral slot of the rotatable member, and a cross-head carried by the arm and extended across the spiral slot to prevent displacement of the arm therefrom.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

LEVI D. GIBSON.

Witnesses:

E. H. RHODES, J. H. M. KING.

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