US1583640A - Governor - Google Patents

Description

May 4 ,1926.

' J. ZITZERMAN GOVERNOR Filq June 25, 1923 n r l 5 Patented May 4, 1926.

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Application flied AJune a5, 192315 -fseriai No; 647,5'57. v

To all whom t may concern Be it known that I, JACOB ZITZERMAN, a citizen of Russi-a, and al resident of the city of New York, borough of Brooklyn, in the coimty of'Kin'gs and State of New York, have invented a new and Improved Governor, of which the following is a full,` clear, and exact description." f y 'v This inventionrelates to centrifugalspeed governors and has particularfreferehce to an improvement inthe construction of the governor arms.

I-Ieretofore the arms of governors for the spring motors of talking machines have been generally constructed of a leaf spring which is easily broken, thereby causing `untold trouble and rendering the motor unfit for use. Y

It is therefore the principal object of the present .invention to provide an arm structure for a centrifugal speed governor of'this type which reduces the possibility of breakage to'a minimum, while eficiently cooperating with the other governor elements.

As a still further obJect the invention contemplates a centrifugal speed governor arm which is extremely simple in its construction, inexpensive to manufacture and which may be readily associated with or detached from the component parts of the governor.

With the above recited and other objects in view, the invention resides in the novel construction set forth in the following specification, particularly pointed out in the appended claims and illustrated inthe accompanying drawings, it being understood that the right is reserved to embodiments other than those actually illustrated herein to the full extent indicated by the general meaning of the terms in which the claims are expressed.

In the drawings- Figure l is a longitudinal sectional view through a governor equipped with arms constructed in accordance with the invention.

Fig. 2 is taken approximately Fig. 1.

Referring to the drawings by characters of reference,10 designates the governor shaft which is journaled in suitable bearings 11 for rotation and has formed thereon a worm screw or other suitable means for operatively connecting the shaft to the operating dela sectional View therethrough Von the line 2-2 of vice, the speed of which is to be controlled. The stationary memberl-'is secured to the -shaft 10 and'anaxially'inovable member 14 is mountedbtliereon. i rIhe members 13 and 14' are connected by'the'elastic governor arms-15 inthe usual'manner and the weights 16 are carried bythe arms 15 foroutward movement inforder to governrthe speed of rotation of the shaftll. l-Asfis usual, the

member '14- upon outward* movementV of the weightsflis advanced toward the station'- ary member 13.

The governor arms 15 in the present instance each comprise an elastic tubular and normally expansible element 17 which as here illustrated consists of a coiled spring, the opposite ends of which are forcibly fitted in a bushing 18, which bushings are snugly received within sockets 19 in the stationary and vmovable members. The elements or springs 17 receiveloosely therethrough a second element 2() which is non-expansible longitudinally but which has suflicient elas-v tic properties to normally return to its initial shape. As shown the elem-ent 20 consists of a small wire.

In practice the opposite ends of the wires gaged by retaining screws 28 which prevent accidental longitudinal or rotary movement of the weights on the arms.

Ity will thus be seen from the foregoing construction that the springs k17 are maintained against expansion by the wires 20, while the same are allowed to iiex when the governor' shaft is rapidly rotated to control the speed of the shaft, while the combined elastic quality ofthe springs 17 and wires 20 serve to, normally return the parts to their original position when the rotation of the shaft is reduced lor brought to a stop.

I claim:

1. Acentrifugal governorarm, comprising a coiled spring, and an elastic wire passing loosely through the spring and having ing a coiled spring having bushings on its ends, and an elastic ',Wire passing loosely through the spring and having its ends secured to the bushings of the spring. p

3. A centrifugal governor arm, comprising a coiled spring having bushings on its ends, the bushings having their outer ends notched, and an; elasticvvire passing loosely through the spring and having hooks ,ony its endsffengaging the notches of theybushings.

4. In a centrifugal governor, the combinationvvith the governor shaft, and the movf able and stationaryniembers thereon, said members being provided Withsockets, of a plurality of Weight carrying governor arms having their ends inthe sockets of the niembers, k,each arm comprising a coiled spring and a.V Wire passing looselyV through the spring and having its ends' secured to the ends of the spring, andmeansfor securing tionary and movable collars thereon, said collars being provid-ed with sockets, of a plurality of Weight carrying governor arms havingl theirends iii the sockets of the collars, each arm comprising) a coiled spring having a bushing in `each end,rtlie`bnshings being provided With openings in their sides andlnotches their ends, anfelasticfwire passingloosely through the spring and having `hooks lon its ends engagingthe notches of Athe bushings,pvand a screw mounted in each collar and having its .end Aextending through the opening of the bushing and engaging the sprinO.

,JACOB ZIT'ZERMAN.

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