US527153A - Sprocket-wheel - Google Patents

Description

(No Model.) v

P. .D; MURPHY 80 E. KOLB.

SPROCKBT WHEEL. I No. 527,153. Patented Ocffi. 9, 1894..

"NEVA? W/TNES:SE8: I a ,6 INVENTOHI v ih W A TTOHNE Y5 UNITED STATES PATENT-I OFFICE.

PETER D. MURPHY AND EDWARD KOLB, OF LOCKPORT, NEW YORK.

SPROCKET-QWHEIIL.

SPECIFICATION forming part ofIietters Patent No. 527,153, dated October 9, 1894. Applicatioufiled February 5, 1894. Serial No. 499,087. (No model.)

- To all whom it may concern:

Be it known that we, PETER D. MURPHY and EDWARD KoLB, citizens of the United States of America, residing at Lockport, in the county of Niagara and State of New York, have invented certain new and useful Improvements in Sprocket-Wheels, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates tocertaih new and useful improvements in wheels and particularly to sprocket wheels, the following being such afull, clear, and exact description of the same as will enable others skilled in the art to which it appertains to make and use the same.

The object of said invention is to provide novel means for increasing the diameters of sprocket wheels to compensate for the extension of the chain incident to long use, it being well known that the joints otlsuch chains become worn and that the distance between the links are greater in consequence, thus causing the chain to run upon the sprocket teeth, and resulting in increased wear on both the wheel and the chain. p

A further object of our invention is to arrange the parts in such a manner as to make varying adjustments possible in accomplishing the result above set forth as the wear on the chain increases and necessitates the increased diameter, and furthermore in providing means to this end which are strong and durable, efficient and satisfactory in use as well as comparatively inexpensive of manufactu re.

In describing the invention in detail reference is had to the accompanyingdrawings forming a part of this specification and wherein like characters of reference indicate corresponding parts inboth views, in which Figure l, is a view in side elevationof a consist of metal or fibrous substance as desired and the thickness thereof being varied to produce the result sought, the particular adjustment depending upon the chain. In most cases the plates without packing would .produce the desired result for the first adjustment. The packing further serves to materially lessen the noise caused by the chain moving over the wheel especially if leather or soft metal is used.

The advantages of the invention as well as the construction and operation will be apparent from the foregoing description and it is particularly noted that changes and substitutions may be made in the details of con struction without materially departing from the general idea involved.

Having fully described our invention, what we claim as new, and desire to secure by Letters Patent, is I 1. A sprocket wheel having removable plates secured between the teeth in length equal to the distance between said teeth for the purpose described.

2. The combination with the toothed wheel, of plates adapted to fit on the periphery thereof between the teeth and the interposed packing for the purpose described.

In testimony whereof we affix our signatures 1 in presence of two witnesses.

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