US858049A - Mechanical movement. - Google Patents

Description

PATENTED JUNE 25, 1907.

F; J. ZIEGLER.

` MECHANICAL MOVEMENT.

APPLICATION FILED DEO.18, 1906.

(g1/w01 1120.1 am; @Myedfzlyler .ther provided with a n1,f uide-slot F1 FREDERICK J. ZIEGLER, oF NEW YORK, N. Y.

MECHANICAL MOVEMENT.v

Specification of Iietters Patent.

Patented June 2 5, 1907.

Application tied December 18,1906. serial No. 343,384..

To all whom it may concern,.-

Be it known that I, FREDERICK J. ZIEGLER, a citizen of the United States, residing in the borough of Manhattan, city of New York, county and State of New York, have invented certain new and useful Improvements in Mechanical Movements, of' which the following is a specification.

My invention relates to mechanical movements, and more particularly to means for regulating the power driving ratio of drivingshafts used on automobiles or -yother mechanical appliances. e

The invention as for its object to provide a simple and pos tive means for regulating the power ofdriving-shafts; and for this purpose the invention consists of a mechanical movement, comprising a motor-shaft, a crank arm, motion transmitting means connecting the motor-shaft with the crank arm, a block adjustably movable on said crank arm, a driving shaft, and motion transmitting means connecting the` block on the crank arm with the driving shaft. And the invention consists further of certain novel features and combination of parts, which will bemore fully described hereinafter and set forth in the claims.

In the accompanying drawing, Figure 1 represents a side view of my improved mechanism, and Fig. 2 is an end view ofthe same.

Similar letters of reference indicate corre- -sponding parts in the ii'gures of the drawing.

Referring to -the drawings, A represents the motor-shaft of an automobile, carrying a crank-arm B, to the end of which a pivot-link.l C is pivotally connected. Said link is in turn pivoted to a crank-arm D mounted to 0scillate on a shaft E. Longitudinally movable on the crank-arm D a block F is arranged, to which is pivotally connected a link G connected with a crank-arm H. The driv'inU-shaft I has secured thereto a ratchetwheel which isrotated by means of the intermittent engagement of a spring-pressed pawl K arranged on the crank-arm H. s n The crank-arm D is provided with an upper bracket m and a lower bracket 'm1 having arranged therein openings m2 and m3 respectively, in which are rotatable the ends of a threaded spindle M. The spindle M engages a threaded opening of the block F, so that by the rotation of the spindle the block F is moved along the same. The block F is furby which -arm D, so as to be it embraces the cr guided during its movement by the latter. By this arrangement. the block is also given` a fixed position so as to prevent it from being veasily misplaced. .The spindle M is provided at its lower end with a pinion N which is engaged by a rack O suitably guided in guide-anges I arranged on the crank-arm D. To one end of the rack O agreoved collar R is secured, which is rotatable and movable along the shaft E and which is engaged by a forked lever Sarranged Within easy reach on the oscillating crank-arm D near the intermediate shaft E the movements of the crank-arm H are short and more powerful,

whereas when the block F is in its uppermost position away from pivot E then the reciprocations of the crank-arm H are long and less powerful than in the former case and in directratio to the distance from'the pivot E. Thus by the variation of the position of the block on the crank-arm D the length of the reciprocations of the crank-arm Hi may beiy varied. When running with heavy loads uphill, where much power is required or in the clty streets, when a lower gear is desired, itis desirable to 'apply the force on the driving-shaft through a smaller space of reciprocation, that is, to have the position of the block F near the shaft E, while during ordinary runs the force is applied on the drivingshaft through a longer space of reciprocation, that is, the position of the block F is near the upper part of the crank-arm D.

In the practical embodiment of my invention, in automobiles for'instance, the mechanism above described isarranged triple or quadruple so` that the motor force is applied continually to the `driving-shaft, whether .the

reciprocations are long or short, whereby a steady drive is attained. E

Thegreat advantage of my improved construction is that the operation of the parts is positive and that when once the device isset, the position of the sleeve can only be changed by the operation of the hand lever.

My improved device has been .described in connection with its application to automobiles it may, however, be applied to any IOO mechanical appliance where it is desirable to vary the length of the reciprocations of a reciprocatory device, or where a variable gear ratio is desired. I i

Having thus described my invention, I claim as new and desireto secure by Letters Patent: j

1. In a mechanical movement, the combination,A with the driving and driven shafts,

of a crank-arm mounted for oscillation between'said shafts, a longitudinally-disposed, rotatably-mounted, threaded spindle carried by said crank-arm, a connection between said crank-arm and the dri ving-shaft whereby the crank-arm is oscillated by the latter, a block embracing said crank-arm and threaded on said spindle to move longitudinally of said crank-arm, means whereby said spindle may be manually rotated, and an operative connection between said block and the driven-shaft. l

2. In a mechanical movement, in combination, a driving-shaft, a driven-shaft, an intermediate shaft, a crank-arm mounted to oscillate on said intermediate shaft, a connection between the outer end of, said crankarm and said driving-shaft whereby the crank-arm is oscillated, a block guided longitudinallyl along said crank-arm, a threaded spindle carried by said lcrank-arm and'by 3o which said block is fed in either direction, a pinion carried by said spindle adjacent the intermediate shaft, a rack engaging said pinion, and operating mechanism for said rack guided 'on and movable longitudinally along said intermediate shaft.

3. In a mechanical movement, the combination of a driving-shaft, a driven-shaft, an intermediate shaft, a crank-arm mounted on saidintermediate shaft and Which is oscillated thereon by said driving-shaft, a block guided longitudinally along said crank-arm by means of a slot, a connection between said block and the driven-shaft, a threaded spindle disposed longitudinally of thecrankarm and which engages a threaded opening in said block, a pinion carried by said spindle, and means guided along said intermediate shaft whereby said pinion may be rotated.

In testimony, that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

FRED. J. ZIEGLER. Witnesses:

LoUrs LANDE, C. P. GOEPEL.

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