US1082452A

US1082452A - Fly-wheel jack.

Info

Publication number: US1082452A
Application number: US75691313A
Authority: US
Inventors: Stephen D Stackhouse
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-03-26
Filing date: 1913-03-26
Publication date: 1913-12-23
Anticipated expiration: 1930-12-23

Description

D. STAGKHOUSE. I FLY WHEEL JACK. APPLICATION IILBD MAR. 26,- i913.

' 1,082,452; Patent ed Dc.2 3,-1913.

the invention consists in the construction,

1s a side elevation of the same. and Fig. 3 is wheel showing the manner of using the jack STEPHEN D. STACKHOUSE, 0F GLENLYON, PENNSYLVANIA.

FLY-WHEEL JACK.

Specification of Letters Patent.

Patented Dec.23,1913.

Application filed. March 26, 1913. Serial No. 75am To all whom z'zfi'may concern:

Be it known that I, STEPHEN D. STACK i-ioosn, a citizen of the United States, residl ing at Glenlyon, in the county' of Luzerne and State of Pennsylvania, have invented new and useful Improvements in Fly-VVhccl Jacks, of which the following is a specifical tion.

This invention relates to improvements in manually operated devices for rotating the fly wheels of engines. to throw the latter off dead center and has particular application to what are commonly termed fly wheel jacks. v

In carrying out the present invention, it is my purpose to provide a jack of the class described whereby engine fiy wheels, driving I pulleys and the like may be thrown off dead center so as to facilitate the starting of the l engine. It is also my purpose to provide a I fly wheel jack which will embrace the desired features of simplicity, etliciency. (lurability and convenience and which will be composed of few parts and these so arranged and correlated as to reduce the possibility of derangement to a minimum and further.- niore, my improved jack may be folded and stored in a comparatively small. space.

lVith the above and other objects in view,

combination and arrangement of parts hereinafter set forth in and falling within the scope of the claim.

In the accompanying drawing; Figure 1 is a top plan view of a jack constructed in accordance with my present invention. Fig.

a view in elevation of the jack and the tly to rotate the fly wheel.

Referring now to the accompanying drawing in detail the numeral 1 designates a standard constructed in any suitable manner of any desired or necessary dimensions, such stz'uidard having the upper end thereof preferably forked or bifurcated as at 3 and the limbs of such bifurcated portion formed with alining apertures designed to receive a pivot bolt l. Pivotally mounted upon the bolt 4 between the limbs of the forked extremity of the standard 1 is an operating lever having a short arm 5 and a relatively long arm 6 whereby the power applied to the long arm will be multiplied when transl fly wheel at a point a mitted to the short arm 5. Pivotally connected to the free end of the short arm of v be disposed one above the other.

In the application of the jack to .a fly wheel, as shown in Fig 3, the gripping fingers 10, 10 are disposed upon the inner and outer walls of the rim of the wheel and the arm 6 of the operating lever moved in a vertical direction so that the jaws 9, 9 will be disposed one above the other and grip the suitable distance below the fulcrum of the operating lever whereby,

when the relatively long arm of the operating lever is pulled downwardly, the jaws will effectively grip the rim of the wheel and impart a rotary movement thereto so as to throw the wheel off of dead center. Should it be desired times, it will be seen that the long arm 6 of the operating lever will be moved up and down several times thereby throwing the jaws downwardly and upwardly so that such jaws can grip the fly wheel at a lower point each time they move in a downward direction.

I claim A device of the class described comprising a standard, an operating lever fulcrumed upon the upper extremity of said standard and having a short arm and a relatively long arm, a link pivoted at one end' to the free extremity of said short arm' and provided; with pivot pins extending outwardly fi om one face thereof jaws mounted upon said pivot pins and having the front edges thereof beveled. and the opposite ends extended outwardly to form gripping fingers.

In testimony whereof I aflix my signature in presence of two witnesses.

STEPHEN D. STACKHOUSE.

lVitnesses:

RICHARD Room, EDWARD M. DAVIS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C.

and spaced apart, and