US 1461165 A
Description (OCR text may contain errors)
Patented July 10, 1923.
E t? l LEROY S. SNELL, OF TICA, NEW YORK.
Application led .Tune 14, 1921.
To all whom t may concern.' v
Beit known that I, LEROY S. SNELL, a citizen of the United States, residing at Utica, in the county of Oneida and State of New York, have invented certain new and useful Improvements in a Track Signal; and l do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
The invention relates to signals designed for use on railways to warn the engineer or other train operator of impending danger f when the usual signal is not heeded because of fog or other cause.
@ther objects and advantages will be apparent and suggest themselves as the nature of the invention is understood.
While the drawing illustrates an emb0diment of the invention it is to be understood that in adapting the same to meet different conditions and requirements, various changes in the form, proportion and minor details of construction may be resorted to without departing from the nature of the invention.
Figure 1 is a side view of the mechanical operating parts of my invention, the casing or housing therefor being shown in section,
Figure 2 is a view showing the electric circuit employed, the mechanical parts of the device being diagrammatically shown.
The operating parts of the mechanism are enclosed for protection against the elements and to prevent tampering therewith. The casing or boX for receiving the working parts is designated by the numeral 1 and is provided in a side with an opening2 through which a bar 3 is adapted to pass when it is required to place a torpedo 4 upon a rail 5 of the track. The bar 3 has a portion toothed as indicated at 6 to mesh with the teeth of the gear wheel 7. Posts or guides 8 and 9 slidably support the bar 3. The gear wheel 7 is fast to a shaft 10 journaled to the uprights 11 or like supporting means. A
pulley 12 secured to the shaft 10 ris belted or otherwise connected to a motor 13 whereby the shaft 10 may be positively rotated forwardly or backwardly to advance or withdraw the bar 3. In the preferable construction, the motor 13 is of the electric type and of such construction as to be reversed. A belt 141 connects the pulley 12 with a com Serial N0. 477,435.
panion pulley 15 secured to the armature or shaft of the motor 13. The motor 13 is included in an electric circuit which is adapted to be controlled from adeterminate point. Two push buttons 16 and 17 are provided at the point of control. When the circuit through the motor 13 is closed by pressing the button 16 the motor is operated to advance the bar 3 whereby the torpedo e is placed upon the rail 5. When the circuit is closed by pressing the button 17 the motor 13 is reversed thereby withdrawing the bar 3 and the torpedo carried thereby rovided the same has not been exploded. ligamps 18 and 19 are included in the circuit, the lampl 18 being red and indicating danger and the lamp 19 green to designate caution.
The bar 3 is provided with a pin or stop 22 which is adapted to cooperate with contacts 20 and 21 applied tothe respective posts 8 and 9.
As herein before stated, the motor 13 is reversible. The letter B represents a battery or source of electric supply. A wire 23 connects the plus pole of the battery with one terminal of the motor 13 and a wire 25 connects the other terminal of the motor 13 with the switch 16. Wires 31 and 26 conneet contacts of the two switches 16 and 17 with the minus pole of the battery B. When the switch 16 is closed, the circuit through the motor for advancing the rod 3 is as follows: From the positive pole of the battery B through wire 23, motor 13, wire 25, switch 16 and wires 31 and 26 to the minus pole of the battery B. When the bar 3 reaches a position to place the torpedo t upon a rail 5 of the track, the lighting circuit to the lamp 18 is as follows: From the positive pole of battery B through wiresi 23, 27 and 28, switch 22 21, wire 29, lamp 18 and wires 31 and 26 to the minus pole of the battery B. When the switch 17 is closed to reverse the motor 13 and return the bar 3 to normal position, the circuit is as follows: from the posit-ive pole of battery B through wire 23, motor 13, wire 30, switch 17 and wires 31 and 26 to the minus pole of the battery B. When the bar 3 reaches its normal position, the circuit including the lamp 19 is closed by the switch 22 and 20, the circuit starting from the plus pole of the battery B being as follows: Wires 23, 27 and 28, switch 22-20, wire 32, lamp 19 and wires 31 and 26 to minus pole of battery B.
Having thus described the invention, what l claim is l. A track signalling mechanism includ ing a` torpedo-carrying bar, uprights on which said bar is slidable, a pin extending` laterally from the bar and dis Josed intermediate said uprights, said pin adapted to engage the uprights to liinit movement of the bar in opposite directions, signals in electric circuits having spaced contacts on said bars and adapted to be engaged by said pin to cl said circuits.
2. A track signalling' mechanism including'a casing, uprights within the casing and in spaced relation, a torpedo carrying' bar slidably mounted by said uprights, said bar being,` normally disposed within the casing, the casing having an opening' through Which the bar may slide, said bar having gear teeth, a gear Wheel in mesh with said teeth, means Within the casing journaling said wheel, reversible niotor operable to slide said torpedo carrying; bars in opposite directions and located Within the casing, a pin extending laterally troni the bar and disposed intermediate said uprights, said pin adapted te engage the uprights to liinit increment of the bar in opposite directions, signals in electric circuits having spaced contacts disposed on said bars and adapted to be engaged hy said pin te close said circuits. i
ln testimony whereof l alifi ymy signature in presence of two Witnesses.
LER-OY S. SNELL. l'Vitnesses CARL LEON 0. BnnoNnn, R. OLAUN EY.