US656691A - Railway-switch. - Google Patents

Description

No. 656,69I. Pa tentod Aug. 28, I900.

T. COPEMAN.

RAILWAY SWITCH.

. (Application filed June 9, 1900.) '(No Model.)

2 Sheets-Sheet I.

A n n n n lzizqggy No. 656,69l. Patented Aug. 28, I900.

' T. COPEMAN.

RAILWAY swncn.

(Apialication filed lune 9,-1900.

2 Sheets-Sheet 2.

(NolodaL) [ml/692E)":

A [Tangy TIIORN COPEMAN, OF EDGAR MILLS, CANADA, ASSIGNOR OF ONE-THIRD TO JOSEPH WAITE, OF SAME PLACE.

' RAILWAY-SWITCH.

SPECIFICATION forming part of Letters Patent No. 656,691, dated. August 28, 1900.

Application filed June 9, 1900. ScrialNo.19,695. (No model.)

To aZZ whom it may concern: on the inner side, the two forming together Be it known that I, THORN COPEMAN, a a vertical guideway forthe switch-point rail. citizen of Canada, residing at Edgar Mills, in The housing-plate E is formed on the inthe county of Essex and Province of Ontario, side with a rib f, which is adapted to bear 5 Canada, have invented certain new and useagainst the adjacent face of the cam portion ful Improvements in Railway Switches, of of the roller, as will be more fully hereinafter which the following is a specification. described. The ends of the housing-plate are This invention relates tothat kind of railsecured by bolts 9 g to the stationary rails, way-switch inwhich there are verticallythe bolts g passing through elongated slots 6o IO movable switch-point rails, one being dein the housing to permit expansion to take pressed while the other is at the level of the place without binding the switch-point rail rails; and the invention consists in the peand its supporting cam-roller. culiar and novel means for operating such The-cam-rollers are supported upon ties, swit'clrpoint rails by supporting the same suitable bearing-plateshbeingused,and each :5 upon cam-rollers in the manner more fully cam-roller is provided with a crank-arm F, hereinafter described, and shown in the acconnected in any suitable manner with the companying drawings, in whichswitch-operating rod G.

Figure 1 is a plan of the switch. Fig. 2 is In practice the parts being constructed and a crosssection thereof on line a; a, Fig. 1. arranged as shown and described theyare 7o 20 Fig. 3 is a cross-section on line 1 y, Fig; 1. intended to operate as follows: In the posi- Fig. 4 is a plan of one of the switch-points tion of the switch as shown in Fig. 2 the with the housing-plate shown in dotted outswitch-point rails are supported by the camlines. Fig. 5 is an elevation of Fig. 4:. Fig. rollers at the relative heights required to 6 is adetached perspective view of one of the keep the main track open. If the switch is 25 switch-points. thrown in the opposite direction, the cam- Arepresents the stationary rails of the main rollers will be revolved one-quarter of a revtrack. olution, thereby causing a reversal of the po- 13 represents the stationary rails of the sidsitions of the switch-point rails which coning. nect the switch with the main track. o 0 O are the two movable switch-point rails In revolving the cam-rollers it will be seen in line with the inner rails. that the ribsf of the housing act as a fulcrum D D are cam rollers, one beneath each for the cam-rollers, and thereby give an adswitch-point rail and supporting the same in vantage in the application of power in throwposition upon the ties. Each cam-roller is ing the switch.

5 substantially coextensive with the switch- My construction has the great advantage point rail and is composed of a roller portion that the cam rollers provide a continuous or and a cam portion Z2. Each cam-roller bears solid support and bearing for the switch-point with its roller portion against the under side rails and also it is not liable to get out of orof the switch-point rail and is held in posider or become inoperative by reason of snow 0 4.0 tion thereon by straps c or in any other suitor ice or by being maliciously tampered with. able way which permits the roller to be re- What I claim as my invention, and desire volved. Preferably the under side of the to secure by Letters Patent, isswitch-point rail is made to fit the top of the i 1. In a railway-switch, the combination roller and to providea wide bearing the whole with the stationary rails of a main line and g5 5 length. The cam-roller is placed at a slight siding, of vertically-movable switch-point angle to the switch-point rail, as shown in rails held in vertical guide-bearings in line Fig. 4, and a rib d is formed on the inside at with the inner rails at theirjunction with the the pointed end of the switch point rail. outer rails, cam rollers interposed between Each cam-roller is confined in position at its the same and the ties in alternate positions I00 50 outer side bya suitable filler-block e, secured to support said switch-point rails, one at the to the outer rail, and by a housing-plate E level of the stationary rails and one below,

rails held in vertical guide-bearings in line with the inner rails at their junction with the outer rails, cam-rollers interposed between the same and the ties and forming continuous bearing or seat for the switch-point rails, one beneath one switch-point rail in position to support the same at the level of the stationary rails and the other in alternate position beneath the other switch-point rail and supporting the same at a lower level, each cam-roller having a circular ,roller portion and each switch-point rail having a continuous seat formed on the under side for said roller portion on which the cam roller is adapted to be rotated, both cam -rollers, being connected for simultaneous operation by the switch-rod.

3. In arailway-switch, the combination with the stationary rails of a main line and siding, of the vertically-movable switch-point rails 0, held in vertical guide-bearings in line with the inner rails, one at the level of the stationary rails and one at a lower level, the cam-rollers D eccentrically journaled to the under side of said switch-point rails and supporting the same directly upon the ties,in alternate positions of said cam-rollers, the arms F on the cam-rollers connected to the switch-operating rod, and the housing-plates E having the ribs f adapted to operate as a fulcrum for the cam-rollers, all substantially as described.

4. In a railwayswitch, the combination with the stationary rails A, B, of the vertically-movable switch-point rails G, the camrollers D upon which said switch point rails are mounted free to rotate saidcam-rollers to support the switch-point rails upon the ties in'alternate positions Of said cam-rollers, one level with the stationary rails and the other below said level, the arms F on said cam-rollers, the switch-rod to which they are connected, and the housings E provided with the ribs f, the aforesaid cam-rollers composed of the roller portions a and cam portions 12 forming between them a longitudinal groove into which said ribs'f project to operate as a fulcrum in rotating the cam-rollers.

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

, THORN COPEMAN. Witnesses:

FRED A. SUTHERLAND, EDMUND I. SoULLY.

Images