US1644346A - Automatic teaih-stopping device - Google Patents

Description

1 27 F. MIGNOGNE AUTOMATIC TRAIN STOPPING DEVICE IN V EN TOR.

Filed' Jan. 22, 1926 patented Get. 4, 1927.

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I FRANCESCO MIIGNOGhiE, OF GREENSBUBG, PENNSYLVANIA.

AUTOMATIC TRAIIISTOPPII TG DEVICE.

. Application filed January 22, 1928. Serial No. 82,989.

This invention relates generally to automatic train stopping devices, the invention having more particular reference to a novel type of automatic train. stopping device. Theinvention has for an object the provision of an improved automatic train stopping device which will prevent collisions.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawing, and to the appended claims in which the various novel features of the invention are more particularly set forth.

Fig. 1 of the drawing shows my improved automatic train stopping devices as applied to an electric locomotive.

Fig- 2 of the drawing is a front elevational detail view of my improved device.

Fig. 3 is a sectional view taken on the line 33 of Figure 2.

Fig. 4 is a diagrammatic view of my improved device.

As here embodied my improved automatic train stopping device comprises a frame element 10 having rotatively attached thereto wheels 11 provided with flanges 12, and having suitably attached thereto a spring shoe 10 to insure contact with the supplementary rail 17, The lever 13 is conveniently pivoted at 14 to the locomotive, and attached to the i'rame element 10 at 15, and having attached at or near one extremity a cable 26 being also attached to a conveniently located lever 27 having pawl to engage with the ratchet wheel 28 or any other similar suitable device, or any other suitable means of raising the frame element 10, and a spring 16 having one extremity attached to the lever 13 and the other extremity conveniently attached to the locomotive, as a means of insuring the contact of the wheels 11 with the supplementary rail 17 or any other suitable strip, preferably attached to one of the rails, and insulated therefrom as designated by the numeral 18 on the accompanying drawing.

Referring in particular to Figure a of the accompanying drawing, a battery 19, or any other suitable source of electric current is provided with a suitable wire 20 conveniently attached to the lever 13, as shown in Figure 2 of the accompanying drawing, and a switch 21, as a means of causing an electric current to pass through the supplementary rail 17, a retarded relay 22 or any suitable electrical device being conveniently wired to another frame element 10 as designated by having a switch 2 1, as a means of applying the brakes of the locomotive by any suitable device attached thereto at 25. it should be understood that the said current passed through the supplement rail 17 will be of suiiicient capacity to cause the retarded relay 22 to function at any chosen distance from the said battery or suitable source of electric current, it should be further understood that each locomotive will be provided with two of my improved devices as above described, each of the said devices functioning on a separate insulated supplementary rail. it is obvious that 1 have provided an automatic train stopping device which will prevent collisions by applying the brakes, when the trains equipped with my improved device come within a certain distance of each other.

it will be also understood that my improved device may be made or any suitable materials such as ordinarily used in devices or this nature.

\rVlllle i have above described the pre feri'ed rorm, construction and arrangement of the several elements employed, it will be understood that the device is, nevertheless, Stktleifllluifi of considerable inodilication tiiereiii, and 1 therefore reserve the privilege of resorting to all such changes as may be Iairly embodied within the spirit and scope or the invention as claimed.

having thus described my inventiom what 1 claim as new and desire to protect by Letters Patent of the United States is as follows 1. A contact shoe comprising a frame, spaced wiieels rotatively mounted on the bottom of said frame adapted to roll on a rail, a lever attached to said frame at the top thereof, said lever being pivotally attached at one eny. to a locomotive, a spring attached at one end to the free end of said lever and at its other end to said locomotive for retaining said wheels in engagement with said rail, a frictional contact member comprising resilient material mounted on said frame adapted to frictionally engage said rail and a cord attached to the free end of said lever for rotating said frame about the pivot of said lever to disengage said resilient contact from said rail while retaining one of said wheels in engagement with said rail for guiding the replacement of said conmounted on the left hand side member of said frame adapted to friotionally engage said ail, and a cord attached to the free end of said lever for rotating said frame to raise said side member for disengaging said contact member from said rail While retaining the wheel of the other side member of the frame in Contact with said rail to guide the replacement of said rail by the action of said spring when the cord is released.

In testimony whereof I have afiixed my signature.

FRANCESCO MIGNOGNE.

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