US1301556A - Derailer. - Google Patents

Description

DERAILER.

APPLICATION FILED NOV-L191? Patented Apr. 22, 1919.

- QH/UMVI'OL L I. E. Gray is 1T STATES JAMES C. GRAVIS, OF LAREDO, TEXAS.

DERAILER.

Specification of Letters Patent.

l;atented 11p r. 25 3, 151111.

Application filed November 7, 1917. Serial No. 200,735.

To all whom it may concern:

Be it known that 1, JAMES C. GRAVIS, a citizen of the United States, and a resident of Laredo, in the county of lVebb and State of Texas, have invented certain new and useful IIIIPI'OVQMQDtS in Derailers, of which the following is a specification.

This invention relates to derailers and more particularly to an improved derailing frog for railway rails adapted to engage the wheels of a locomotive or'railw'ay car for derailing the same. I

One of the principal objects of the invention is to provide a derailer of this character that may be easily and quickly applied to the rail and held thereto without the use of fastening means such as bolts, spikes and the like.

One of the objects of the invention is to provide a derailer of this character that will include a portion which has initial engagement with the wheel and which is similar in form to a switch point whereby the tendency of the wheel will be to force the device in tight engagement with the rail upon which it is mounted thus preventing displacement while the derailing operation is in progress.

A further object of the invention is to provide a derailer of this character that will be simple in construction and durable and inexpensive to manufacture and well adapted to withstand the rough usage to which devices of this character are ordinarily subjected.

Other objects of the invention will be readily apparent from a consideration of the following detailed description and of the accompanying drawing, wherein:

Figure 1 is a perspective view of the outside of a section of a railway rail showing my invention applied thereto.

Fig. 2 is a perspective view of the opposite side.

Fig. 3 is a plan view.

Fig. 4 is a section taken on the line 4-i of Fig. 3.

Fig. 5 is a section taken on the line 55 of Fig. 3.

Fig. 6 is a longitudinal section taken on the usual. tie B and the derailer indicated generally at C is adapted to be applied to the rail. 11 tread plate 1 overlies the top of the ball of the rail and, as shown to advantage in Fig. 6, this tread plate tapers from a thin front edge as indicated at 2 to a thickened end portion 3 thus causing the tread plate to have an upward inclined sur face for raising the wheel of a railway carriage when the same passes over the plate. The top of the portion 3 should be approximately three-quarters of an inch higher than the edge 2 so that the wheel will be raised three-quarters of an inch when it reaches the highest point on the tread plate 1. To prevent lateral displacement of the plate 1 from the rail, I have provided a retaining flange 4 which formed on the outer marginal edge of the plate and depends therefrom to engage the side of the ball of the rail as clearly shown in Fig. 1 of the drawing.

Atthe opposite side of the plate, I have provided a deflector 5 which, in this instance, is in the form of a metallic shell the main body portion of which is convexed in contour and has a substantially diagonal ridge 6 transversely rounded as shown to advantage in Fig. 4 of the drawing, and longitudinally curved as shown in Fig. 1. This ridge 6, beginning at a point near the base flange of the rail rises in a gradual curve to a point above the top of the rail and the surface of the plate 1 and merges into the thickened portion 3 at the end of the plate 1. The side of the ridge 6 forms a deflecting surface 7 adapted to engage the wheel as it passes over the plate 1. The

point 8 from which the ridge 6 begins, is.

laterally spaced from the base of the rail thus forming a recess 9 which continues upwardly between the rail and the ridge forming an inclined groove or runway 10, the top of which merges into the surface of the plate 1. Formed with the marginal edge of the plate 1 opposite to the flange 41., is a lip 11 and the same has an elongated extension 12, the end of which is tapered to a thin edge as indicated at 13 to facilitate engagement of the wheel flange with the lip when the wheel is to be derailed.

As shown in Figs. 4 and 5 of the drawing, the body portion of the deflector is hollow thus providing a relatively thin wall of suitable metal, the marginal edge of which engages the tie B. This marginal edge is pro vided with a pair or teeth or prongs l-l adapted to embed themselves in the tie to prevent longitudinal movement of the device When in operation.

It is to be observed that the lip 11 merges int the runway 10 at a point beyond the edge 2 of the plate 1 so that the rail is completely covered by the plate and the flange 4. and the lip 11 at a point adjacent the run way 10 so that the Wheel is mounted entirely upon the device before the deflecting operation is started. When the flange of the wheel comes into contact with the runway 10, the wheel will immediately rise and since the runway merges into the inclined surface of the plate 1, the rising action will continue until the end of the plate is reached. The surface 7 at the side of the ridge 6 extends transversely across the raised end of the plate and, therefore the wheel will be forced toward the outer surface of the plate and will drop from the edge thereof and consequently be derailed.

The device will be found to be especially valuable for preventing rear end collisions and for protecting worln'nen since one of the derailers may be placed at a point remote from the rear end or a train or the point at which the workmen are employed and any advancing rolling stock will be immediately derailed.

From the foregoing it will be observed that a very simple and durable deraile has been provided the details of which are embodied in the preferred form. I desire it to be understood, however, that slight changes may be made in the details of construction without departing from the spirit of the invention or the scope of the claims hereunto appended.

I claim:

1. A derailer comprising a plate, a retaining flange formed on one edge or" the plate a .lip formed on the opposite edge and in cluding an extension having a tapered end extending beyond the end of the said plate, a deflector comprising a longitudinally curved ridge having one surface merging into the said plate near one end thereof.

A derailer comprising a plate, a convex body having a transversely rounded and longitudinally curved ridge extending substantially diagonally with respect to said plate and merging into the latter, a lip formed upon the edge of the plate adjacent the said body and including an extension having a tapered end extending beyond the end of said plate' 3. A derailer comprising an inclined plate, a deflector formed contiguous therewith and having its surface merging into the plate, means formed upon said plate for maintaining the plate in position against lateral movement, and prongs formed upon said deflector for embedding in a tie to maintain the plate and deflector against longitudinal displacement.

d. A derailer comprising a plate, a retaining flange formed on one edge of the plate, a lip formed on the opposite edge and including an extension having a tapered end extendingbeyond the end of said plate, a deflector comprising a longitudinally curved ridge and having one surface merging into said plate near one end thereof, and prongs formed upon said deflector and adapted for embedding in a tie to maintain the plate and deflecto against longitudinal displacement.

JAMES e. eaavis.

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

' Washington, D. G.

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