US1136945A

US1136945A - Track device for automatic train-stops.

Info

Publication number: US1136945A
Application number: US854753A
Authority: US
Inventors: Charles A Eib
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-10-08
Filing date: 1914-08-03
Publication date: 1915-04-27
Anticipated expiration: 1932-04-27

Description

C. A. EIB. TRACK DEVICE FOR AUTOMATIC TRAIN STOPS. APPLICATION FILED AUG.3, 1914.

1,186,45 Patented Apr. 27, 1915.

WITNESSES fi/QL/ 'NVENTOR ATTORN EY lib .mseeaa.

UTWTM CHARLES A. EIIB, OF NEW BRUNSWICK, NEMT JERSEY;

TRACK DEVICE FOR AUTQMATIG TEAIN-STOPS.

Specification of Letters Patent.

' rammed Apr. 27, rats.

original application filed October 8, e13, ilerial Ito. 794,107. Divided and this application filed August 3,

. 1914. Serial No. $5 1,753.

Serial No. 794,107.

The object of the present invention is to improve the construction of track devices for automatic train stops and to provide a simple, practical, and eificient track device,

of strong and durable construction, capable of edectually preventing unauthorized persons from surreptitiously moving it to its engaging position to actuate the automatic train stop mechanism of a train for stopping the latter.

With these and other objects in view the invention consists in the construction and novel combination of parts hereinafter fully described, illustrated in the accompanying drawing, and pointed out in the claims hereto appended, it being understood that various cianges in the form, proportion, size and minor details of construction, within the scope of the claims, may be resorted to Without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings-Figure 1 is a side elevation of a track device constructed in accordnnce with this invention and shown in position on a track, the cross ties beingKin section. Fig. 2 is a sectional view to en transversely of the track, the traclr device being shown in front elevation. Fig. 3 is an enlarged transverse sectional view of the track device. 7

Like numerals of reference designate corresponding parts in all the figures of the drawing.

In the accompanying drawing, in which is illustrated the preferred embodiment of the invention, 1 designates a track device comprising a vertically movable plunger 2 provided at its upper end with a rounded transversely disposed head 3 projecting latorally at opposite sides of the plum er and movable into and out of the path 0 a shoe l of train mechanism of an automatic train stop. The shoe 1-, which is pivotally connected at its rear end 5 to a supporting bracket 6, is connected with and adapted to actuate a vertically movablerod or stem 7, guided in an arm 8 of the supporting bracket and designed to be connected by means shown and described in the aforesaid application with devices for cutting off the steam from the.cylinders of a locomotive and for applying the brakes of a train. While the track device of the present invention is designed primarily for use in connection with the automatic train stop' of the aforesaid application, it may, of course, be used for actuating a movable shoe or analogous element of any other similar automatic train stop.

. The plunger 2 operates in a vertical fluid pressure cylinder 9 provided at its lower end with an attaching portion or base 10, which is bolted or otherwise secured to a cross tie 11. The track device is preferably arranged at the center of a track 12, as illustrated in Fig. 2 of the drawing, but the track device may be mounted in any other.

desired manner and may also be located at either side of a track, so that a separate set of signals and track devices may be arranged at each side of a single track for controlling trains traveling thereon in opposite directions.- The vertical cylinder 9 15 connected at the bottom-by a pipe 13 with a suitable source of air supply or other fluid pressure, preferably the pipe lines for operating a semaphore or other signal, and when pressure is introduced into the lower end of the said cylinder 9,-the lunger 2 is torced upwardly to its elevate or enga 'ng position into the path ottheshoe 4. When the air is exhausted, the plunger descends by gravity, assisted by a pairof coiled springs 14, mounted on the lower portion of spaced vertical rods 15 secured at their upper ends to the transverse head 3 of the plun er and extending downwardly therefrom t rough openings 16 in horizontal guiding arms 17 preferably formed integral with and extending from opposite sides of the cylinder 9 at the 11 per portion thereof. The up er ends 18 o the slidable rods 15 are pro on ldtl lldb

ltd

, lower pairs and adjustably supporting the coiled springs 14, which are interposed between said nuts and the fixed horizontal guiding arms 17. The plunger is provided at its ortion with suitable packing rings 21, and in practice, suction will effectually prevent the plunger from being surreptitiously lifted by unauthorized persons when the air iscut off, so that it will be impossible for such persons to stop a train by moving the track device from its lower position to its elevated or engaging position. The pairs of nuts, which are arranged on the threaded lower ends of the rods, provide for an adjustment of the springs to regulate the tension thereof, and the arrangement of the nuts in pairs serves to lock them in their adjustment. The cylinder is equipped at its top with a suitable stufling box 22. When the train mechanism,shown and described in the aforesaid application engages and is operated by the track device, the brakes are applied and steam is cut off from the cylinders of the engine, as explained in the said application.

l/Vhat is claimed is:

1.7A track device of the class described comprising a fluid pressure cylinder, a plunger operating in the cylinder and movable upwardly and downwardly, a spring arranged exteriorly of the cylinder, and means also arranged exteriorly of the cylinder for connecting the spring with the plunger for moving the same downwardly.

2. A track device of the class described comprising afluid pressure cylinder, a plunger operating in the cylinder and movable upwardly and downwardly, said plunger being provided with across head, rods located at opposite sides of the plunger and con-:

nected with the cross head, mounted on the rods and the plunger downwardly.

3. A track device of the class described comprising a fluid pressure cylinder provided with projecting guiding arms, a plunger operating in the cylinder and movable upwardly and downwardly, rods connected and springs arranged to urge inseam with the plunger and guided by the said erating in the cylinder and provided with a' cross head located above the said arms, vertically movable rods secured at their upper ends to the cross head and guided by the said arms, and springs disposed on the lower portions of the rods below the guiding arms and arranged to be compressed in the upward movement of the plunger.

5. A track device of the class described including a vertical fluid pressure cylinder provided at the upper portion with horizontal projecting arms having openings, a plunger operating in the cylinder and providedat the upper end with a laterally projecting cross head, vertical rods secured at their upper ends to the projecting portions of the cross head, and guided in the openings of the said arms, said rods having lower threaded portions, nuts arranged on the lower threaded portions of the rods, and coiled springs disposed on the rods and interposed between the nuts and the arms and adapted to urge the plunger downwardly.

6. A track device of the class described comprising a fluid pressure cylinder, a plunger operating in the cylinder and movable upwardly and downwardly, an exteriorly arranged spring, and means for connecting the spring with the plunger and for adjusting the tension of the spring, said spring operating to urge the plunger downwardly.

In testimony, that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

CHARLES A. EIB.