US1701890A - Switch-point protector - Google Patents

Description

Feb. 12, 1929.

I. J. KILBURN SWITQH POINT PROTECTOR Filed March 26, 1928 II II I lull ATTORNEY Patented Feb. 12, 1929.

UNlTE STATES PATENT OFFICE.

ISAAC J. KILBURN, OF DENVER, COLORADO, ASSIGNOR TO THE AMERICAN SWITCH POINT PROTECTOR AND RAILROAD EQUIPMENT COMPANY, OF DENVER, COLORADO,

A CORPORATION OF COLORADO.

SWITCI-I-POTNT PROTECTOR.

Application filed March 26, 1928.

This invention relates to protectors for points of railway switches and its main object is to provide a simple device that is read ily attached to the pivoted points of a switch without fastening means other than those used for securing the points together, and which will protect the ends of the points against wear by preventing their contact with the flanges of wheels on cars passing through the switch.

It is well known that the points of railway switches wear soonest at their tapered end portions at which they engage the rails of the track, and that the life of a switch point is for that reason comparatively short.

The renewal of switch points involves considerable labor and expense, and by the use of my protectoig'which may be produced at comparatively low cost and which can be renewed by the mere expedient of loosening and re-applying two or three nuts of the switch, much time, labor and expense is saved.

An embodiment of the invention has been illustrated in the accompanying drawings, in the several views of which like parts are similarly designated, and in which,

Figure 1 represents a plan view of a portion of a railway switch, showing the protectors in their operative position on the points of the switch,

Figure 2, a fragmentary cross-section taken on the line 2-2, Figure 1, and drawn to an enlarged scale,

Figure 3, an enlarged side-view of the endportion of one of the switch-points with the protector in place, looking in the direction of the arrow A in Figure 2,

Figure 4, a further enlarged section through the protector, apart from the switch tongue, on the line H, Figure 3, and

Figure 5, a plan view of the protector in its position against the respective switchpoint,

Referring further to the drawings, the numerals 5 designate the tapering points of a railway switch connected as usual by rods 6.

The so-called number one rod 6 is fastened to the points through the intermediary of lugs or brackets 7 that are secured to the points by means of bolts 8 at opposite sides of a web 9, and that are fastened to the rods by the use of bolts 10.

The bolts 8 are, in the present instance,

Serial No. 264,631.

utilized to also secure the protectoron the respective switch-point, as will now be clescribed.

The protector consists of a bar 12 having, at one end, an inturned head 13 which, in practise, engages the free end of the switchpoint 5, and which, at its opposite end, is tapered to a sharp edge to facilitate the movement of the car-wheel-flanges from the point onto the protector.

The bar is curved transversely and it has intermediate of its end-portions, a flange 1d for its attachment to the point. The flange is laterally offset to form a recess for the reception of the upper portion of the lug by which the respective switch-point is fastened to the rod, and the lower edge of the flange is concaved to escape the web of the lug.

The flange has, furthermore, two or three holes adapted to register with the bolts 8, by which the lug 7 is attached to the point, thereby permitting of fastening the protector to the switch-point by the nuts 15 on the ends of the bolts which ordinarily secure the lug.

The protector thus secured in its operative position, lies flat against the tread of the switch-point and embraces the upper portion of the respective lug, as best shown in Figure 2. Its head, adjacent the free end of the point, abuts against said end and not only protects the end against wear, but, furthermore, relieves the bolts by which the protector is fastened to the point, from stress.

The opposite tapering end of the protector merges to the surface of the point so as to provide a smooth approach for the flanges of the car wheels from the surface of the point onto that of the protector.

It will thus be apparent that the end-portions of the switch-points are adequately protected against wear by contact of the flanges on the car-wheels, that the protector is easily applied and as readily detached and replaced in case of wear or breakage, and that no fastening devices are required other than the bolts already in use on switches to secure the points thereof to the rods.

What I claim and desire to secure by Let ters Patent is:

1. The combination with a railway switch including a point, a rod, and a webbed lug on the rod, fastened to the point by bolts, of a protector engaging along an end-portion of the point, embracing the lug exclusive of its 7 Web, and held in place by the bolts of the lug.

I 2. The combination withia switch-point of a protector bolted to thepoint and engaging along an end-portionot the same, the pro- ;tector haying a head abutting against the end ofthe point, and the end of the protector opposite to the head, tapering to the surface of the point. v r V 3. A protector for a'switch-point, coin prising a bar providedwith' arecessed and apertured flange for its attachment to the point and having at one end, a head for engagement With 'the free end of the point, the opposite end of the bar being tapered to merge toward the surface of the point.

4. In a railway switch, a switch rail of standard construction, and a protectiveplate fastened upon the outside of the rail and having a' Wear-edge extending adjacent to and along the tread-surface of therail to be engaged by flanged wheels moving upon the raiL 5. In a railway switch, a switch rail of standard construction, and aprotectiveplate fastened upo'n'the outside of the rail and havstandard construction, a bracket for the couing a Wear-edge extending adjacent to and along the'ti'ead-surface of the rail and beyond the free end of the same, to be engaged by flanged Wheels moving upon the rail.

(3. In a'railway switch, a switch rail of standard construction, and a protective plate fastened upon the outside of the rail and hav- "ing'a wear-edge extending. adjacent to and along the tread-surface of the rail, to be engaged by flan'ged wheels moving upon the rail, the end of the protector opposite to that adjacent the free end of the rail merging to the surface of the rail.

7 .In a railway switch, a switch rail of ISAAC "J. KILBU

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