US1129427A - Gas-engine starter. - Google Patents

Description

G. K. SALISBURY.

GAS ENGINE STARTER;

APPLICATION FILED 001.. 2a, 1911.

Patented Feb. 23, 1915.

iiiiiiili THE NORRIS PETERS 60.. FHOTO-LITHO.. WASHINGTON, D I

'WTTEU @TATEd PATENT @f h ffim CHARLES H. SALISBURY, 01:" MIL'WATTKEE, WISCONSIN, ,ASSIGNOR TO STANDARD SEPARATOR COMTAI'Q'Y, OF ItlIL-WAUKEE, WISCONSIN, A COB'PQIBI-ATIUN 013 NEW =1 ERSEY.

GAS-ENGINE STARTER.

wearer.

Application filed October 28, 1911.

To all whom it may concern Be it known that I, CHARLES K. SALIS- BURY, a citizen of the United States, and resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented new and useful Improvements in Ga Engine Starters, of which the following is a description, reference being had to the accompanying drawings, which are a part of this specification.

This invention has for its object to provide a starter for gas engines and while it is designed for a gas engine particularly intended for driving a centrifugal separator, it is applicable to gas engines for general purposes.

The object of the invention is to provide a simple and inexpensive means by which the initial movement of the crank shaft of the gas engine may be accomplished which will start the mechanism into performing the intended functions.

The invention is designed to take the place of the ordinary crank handle for starting purposes, being simpler and less dangerous in its operation and less expensive to construct.

"With the above and other objects in view, the invention consists in the gas engine starter herein claimed and all equivalents.

Referring to the accompanying drawings in which like characters of reference indicate the same parts in different views: Fig ure 1 is an elevation of a gas engine pr0- vided with a starting device embodying the present invention, the near plate thereof being broken away to show the engagement of the starting cord with the horn of the other plate; Fig. 2 is a sectional view of the flywheel thereof showing the starting device; and Fig. 3 is a detail view of the inner plate of the starting pulley.

In these drawings 10 indicates a gas engine and 11 is the crank shaft thereof on which is mounted the fiy-wheel 12. The flywheel is preferably set upon a tapering shoulder of the crank shaft and is held in place by means of a nut 13 threaded on the end of the crank shaft, and is locked to the shaft by a key 18. A pair of disk shaped plates 14: and 15 are held on the crank shaft 11 by means of the nut 13, said plates being dished or bent to a concave-convex formation at their middle portions to nest closely together while the inner plate 1 1 is reversely Specification of Letters Patent.

Patented Feb. 23, 1915.

Serial No. 657,366.

bent at its edges to flare away from the edges of the outer plate 15 and form between them a t -shaped groove so that the two plates together assembled on the shaft constitute a grooved pulley. The inner plate 14: has an openin 16 to receive the projecting end of a pin 1 embedded in the hub portion of the fly-wheel 12, preferably cast therein, and this connection serves to prevent the grooved pulley turning independently of the flywheel. A leather strap or other strong flexible cord 19 has a knot or enlargement formed on its end which is engaged in an inclined notch in the edge of the inner plate 14 where it is held by a horn 20 formed by said notch and the strap is then wound about the groove between the edges of the plates 14 and 15 a suitable number of times and when the adjustments of the operating parts of the engine have been made for starting the engine this strap 19 is pulled upon to speedily turn the crank shaft and start the engine in operation. When the strap is unwound from the grooved pulley it is disengaged therefrom by the knot riding out from beneath the horn along the inclined lower edge of the notch. The curvature of the plates 14: and 15 serves to bring the groove between their outer edges out of the plane of the rim of the fiy-wheel so that the cord 19 may be drown ofi' therefrom without interfering with the fly-wheel.

By means of this invention the starting operation may be quickly and easily performed without the usual dangers attending the starting of a gas engine by means of a crank handle, and the device is so simple in its construction as to be inexpensive to manufacture while not detracting from the appearance of the engine.

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

1. A gas engine starter, comprising the combination with a crank shaft, a fly-wheel thereon, and a nut threaded on the crank shaft to hold the fly-wheel in place, of a pair of disk shaped plates mounted on the crank shaft between the fly-wheel and the nut, the said plates being dished to fit together and form a groove between them at their outer edges out of the plane of the 1'11'1'1 of the fly-wheel, a pin seated in the fly-wheel and engaging an opening in one of the plates, a horn formed on one of the plates by a recess in the edge thereof, and a cord wound about the groove between the plates with an enlargement on its end engaged by the horn.

2. A gas engine starter, comprising a pair of. sheet metal disks dished to difi'erent depths and fitting together, the deeper disk within the shallower disk, to form an annular V-shaped groove between their edges, there being an opening at the center of each disk to receive the end of the crank shaft of an engine, a pin fitting in an opening in one of the disks and adapted to fit in a part car- 'ried'by the crank shaft, and a nut adapted to be threaded on the crank shaft of the engine for confining the disks in place thereon, the disk having the opening for receiving the pin being provided with a notch to receive the knotted end of a cord wound about said annular groove.

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

CHARLES K. SALISBURY.

Witnesses:

KATHERINE HOLT, R. S. C. CALDWELL.

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

Images