US778855A

US778855A - Mechanical movement.

Info

Publication number: US778855A
Application number: US15818603A
Authority: US
Inventors: Philipp Goldmann
Original assignee: Individual
Current assignee: Individual
Priority date: 1903-05-21
Filing date: 1903-05-21
Publication date: 1905-01-03
Anticipated expiration: 1922-01-03

Description

PATENTED JAN. 3, 1905.

P. G0LDMANN. MECHANICAL MGVEMENT.

APPLICATION FILED HAY 21. 1903.

WITNESSES:

ATTORNEY lUNTTED STATES PHILIPI; GOLDMANN,

Patented January 3, 1905.

OF NEW YORK, N. Y.

MECHANICAL MOVEMENT.

SPECIFICATION forming part of Letters Patent No. '778.855, dated January 3, 1905.

Application filed May 2l, 1903. Serial No. 158,186.

To all w/wm, it may concern:

Be it known that I, PHILIrr GOLDMANN, a citizen of the United States, residing in Manhattan borough, New York city, in thecounty and State of New York, have invented new and useful Improvements in Mechanical Movements,of which the following is a` specification.

This invention relates to a mechanical movement or device for converting oscillating into rotary motion. The power transmitted can be utilized as seen lit-for example, to drive sewing machines or other devices, cutting disks or knives, and elsewhere, as occasion may serve. v

This invention is set forth in the following specification and claim, and illustrated in the annexed drawings, in which- Figure 1 is a side elevation of a movement embodying this invention. Fig. 2 is an end view of Fig. l. Fig. 3 is a view of a ratchet and dogs. Fig. 4 is a section along m m, Fig. 3.

In the drawings is shown a frame a, to which at m is pivoted a swinging arm b, having racks e e. The rack e engages gear L and rack c engages gear 7L. These two gears are loose on shaft n, but by pawls 0 engage ratehets p and p, fast on said shaft. As the racks move in one direction, the rack e and gear L by their pawl engage ratchet p to rotate the shaft n in one direction, and during this stroke the pawl of gear /t' slips or runs idle. On the return stroke of the racks the rack e, with its gear lt', is in engagement and gear it is idle, as its pawl now slips. By this alternate engagement and release of gears L /L and ratchets pp thereciprocations of the racks produce continuous rotation of theshaft a in the same direction.

The handle or pedal or other power-transmitter (Z can be made to reciprocate the racks.

A tra-in of gears c' can be used to translate the rotation as required for giving increased velocityito shaft j'. Y

In place of segmental racks e d, as shown, said racks can be carried entirely about the pivot or center m and additional gears, as /L it', applied at suitable points, the racks e e oscillating about the center or pivot m.

The carrier b, as seen, swings on the fixed point m, and the ratchet-wheels p and p rotate about the shaft n or the fixed axis of said shaft as a center. As the racks by means of the gears and pawls are caused to alternately engage the ratchet-wheels when swinging back and forth, rotation of shaft n in the same direction is produced.

The rack e can be provided with inner and outer gear-teeth, the outer row being adapted to act, if required, like the convex row of gears e.

A reversing arrangement can be provided at any suitable point for causing the shaft n to be turned or driven backward.

In addition to the pawls o and ratchetsp p a second set of pawls 02 and ratchets p2 p3 are shown. The second set of pawls and ratchets are made to drive the shaft n backward or to produce rotation of the shaft in the opposite direction to that of the pawls 0 and ratchets p p. A disk g, or rather a pair of disks, have studs r. As each disk is turned or set for the tail of pawl 0 to be pressed by a stud such pawl is lifted out of engagement, while the oppositely-facing pawl 02 is cleared to take hold of or engage its ratchet. A return of the settingdisk will hold pawl l02 out of action and allow pawl o to come to engagement.

As one pawl or the opposite facing one is in engagement the oscillation of the racks causes the shaft n to turn one way or the reverse. Y

The disk or setter q can be shifted by a trigger or spring-pressed handle s, which is in toothed form to engage the toothed edge of disk g and shift the same one way or another. By pressing the reverser to the disk and then Yswinging such reverser s about pivot t a shift or reverse is effected. Stops u can be applied to limit the swing of reverser s on pivot t. By means of this device a continuous rotation of the shaft n is eected by a swinging or reciprocating motion of the racks. N'o deadcenter can occur, as in case of a crank, and any suitable motive power can be employed.

The mechanism can be made of desired size and applied in such position or locality as required and suitable and in places where an all-round crank motion is not applicable.

The lever or handle can be made of such length as needed to obtain any desired leverage or power and operated from any suitable point. The stroke of the racks need not be carried to the eXtreme limit of play, as the racks will engage or start the rotation at any point of the stroke. Levers or pedals suitably adjusted or set and connected or geared to the racks can, for example, be used to propel a vehicle or conveyance with a driving-wheel ofwhich the device is connected.

The rack-teeth in Fig. 4 are shown as studs provided with antifriction-rollers. Antifriction devices can be applied to the wheel or to the racks, or to both.

What I claim as new', and desire to secure by Letters Patent, is

An oscillating arm, racks connected to the arm, gears driven by the racks, oppositelyacting pawls and ratchets driven by the gears, releasing-studs for the pawls, carrying-disks for the studs, and a handle for setting the disks.

ln testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

PHILIPP GOLDMANN. Witnesses:

E. F. KASTENHUBER, CHAs. E. PoENsGEN.