US569007A - Arthur george evans - Google Patents

Description

(No Model.) 7

A. G. EVANS. PULLEY FOB WIRES 0P RAILWAY SIGNALS AND POINT BOLTS.

Patented Oct. 6, 1896.

UNITED STATES PATENT OFFICE.

' ARTHUR GEoRGE EVANS, or LoNDoN, ENGLAND.

PULLEY FOR WIRES OF RAILWAY-SIGNALS AND POINT-BOLTS.

SPECIFICATION formingpart of Letters Patent No. 569,007, dated October 6, 1896.

Application filed September 12, 1895. Serial No. 562,267. (No model.) Patented in England February 20, 1894, No. 3 ,634.

To all whom it may concern.-

Be it known that I, ARTHUR GEORGE EVANS, a subject of the Queen of Great Britain and Ireland, residing at 116 Palace Chambers,-

"inafter fully described and claimed.

In order that my said invention may be better understood and more readily carried into effect, I will describe the drawings hereunto annexed.

Figures 1 and 2 illustrate a traveling pulley supported in a bracket stamped out of sheet metal. In these figures no top roller is provided. Fig. 3 is similar to Figs. 1 and 2, but no travel is allowed to the pulley, although it is provided with spindles or pivots. The same pulleyis dropped into asimilar bracket, but without the facilities for traveling, the object being, while not obtaininga traveling pulley, to obtain a universal pulley, which can facilitate the traveling of a wire round a reverse curve, that is to say, a curve the opposite angle to that shown in Fig. 2. Figs. Al and 5 illustrate the same principle of pulley to that illustrated in Figs. 1 and 2 and a similar kind of bracket, but with a traveling top pulley.

a is the pulley.

a a are the pivots or spindles.

b is the path supporting the pulley and along which the pivots travel.

a is the wooden or iron stake by which the bracket is supported.

cl, Figs. 1 to 5, is the support, screwed to the post by which the bracket b is suspended.

.The wire rests in the groove of the pulley and is prevented from wedging between it and the bracket by the guide-strips g. The

wire may rise out of the groove in the pulley, but is guided back again by the said strips. The forked bracket b is looped over the pin of the bracket d, so that it may not merely swing upon the said pin as a center, but may have a circumferential sliding motion upon the pin, and may also tilt to a slight extent in a direction longitudinal to the said pin. This construction is very inexpensive, and the freedom of movement afiorded both to the wire and to the bracketb which supports it saves the wire from becoming abraded and worn away.

What I claim is- 1. Thecombination,withasupporting-post, and a forked bracket secured thereto and provided with a pin; of the forked bracket 1) looped over the said pin and provided with longitudinal paths 1) at its lower part, and guide-strips g; and a grooved pulley for supporting the wire, said pulley being provided with pivots which are free to roll in the paths 1) and having its flanges between the said the said paths; a grooved pulley for supporting the wire, and a grooved guide-pulley, said pulleys being each provided with pivots which are free to roll in the respective paths 1) and d and having their flanges between the said guidestrips, substantially as set forth.

The combination,with a supporting-post, and a forked bracket secured thereto and provided with a pin; of a forked bracket looped over the pin and free to tilt and slide circumferentially as Well as to swing upon the said pin and provided with parallel paths b at its lower part; and a grooved pulley, for supporting the wire, free to revolve and roll longitudinally in the said bracket, substantially as set forth.

ARTHUR GEORGE EVANS.

Witnesses FREDERICK PURDoN, GUY EvANs

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