US181012A - Improvement in automatic railroad-signals - Google Patents
Improvement in automatic railroad-signals Download PDFInfo
- Publication number
- US181012A US181012A US181012DA US181012A US 181012 A US181012 A US 181012A US 181012D A US181012D A US 181012DA US 181012 A US181012 A US 181012A
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- US
- United States
- Prior art keywords
- improvement
- signals
- railroad
- pulleys
- automatic railroad
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 241000220010 Rhode Species 0.000 description 2
- 230000035624 Tlag Effects 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L29/00—Safety means for rail/road crossing traffic
- B61L29/08—Operation of gates; Combined operation of gates and signals
- B61L29/18—Operation by approaching rail vehicle or rail vehicle train
- B61L29/20—Operation by approaching rail vehicle or rail vehicle train mechanically
Definitions
- Figure 1 is a view, in perspective, of my invention.
- Fig. 2 shows the mechanism for operating weight;
- Fig. 3 section showing inside of Weight-case.
- the object of lny invention is to provide a means for signaling the approach of trains at railroad-crossings and closing the crossings, which may be easily and quickly operated; and consists in the mechanism hereinafter described.
- a B is a suitable frame, erected over the crossing upon either side ot' the railroad-track; and consists of parallel upright posts, surmounted by parallel horizontal cross-pieces, as shown in Fig. 1.
- a case, O resting upon a stationary fulcrum, and having an arm or bar,D, extending inward nearly to the center, from which is suspended a tlag, E, or other device best adapted to attract attention.
- the case O contains a stationary Weight, R, which counterbalances the bar D, and a movable Weight, Q, sliding horizontally in a groove, S.
- the movable Weights Q are connected by chains to the pulleys L beneath the ground, and the pulleys L are attached to pulleys K, moving upon the same center. Motion imparted to one set of pulleys, ⁇ M,N.is reversed upon the other through the intermediate pulleys L K, so that the Weights Q will always move trom or toward each other.
- the pulleys M N are operated by the levers P, which, in turn, are operated by a pulleyupon the engine, which strikes and raises the spring H, and, consequently, the lever P attached thereto.
Description
:.nnos's.
AUTOMATIC RAILROAD SIG-NALS.
Na.181,012, Patented Aug.15,1876.
N.PETERS| FHOTO-UTHOGRAPHER, WASHINGTON, D C
.\lA I Y f.. w
UNITED STATES PATENT OFFICE.
JOHN E. ROSS, OF PAWTUOKET, RHODE ISLAND.
- IMPROVEMENT IN AUiiOMATiC RAILROAD-SIGNALS.
Specification forming part of Letters Patent No. 181,012, dated August 15, 1876 application tiled March 13, 1876.
To all whom t may concern:
Be it known that I, JOHN E. ROSS, of Pawtucket, in the State of Rhode Island, have invented a new and useful Automatic Railroad Watchman and Signal; and Ido herebydeclare that the following speciication, taken in conneetion with the drawing making a part of the same, is a full, clear, and exact description thereof.
Figure 1 is a view, in perspective, of my invention. Fig. 2 shows the mechanism for operating weight; Fig. 3, section showing inside of Weight-case.
The object of lny invention is to provide a means for signaling the approach of trains at railroad-crossings and closing the crossings, which may be easily and quickly operated; and consists in the mechanism hereinafter described.
A B is a suitable frame, erected over the crossing upon either side ot' the railroad-track; and consists of parallel upright posts, surmounted by parallel horizontal cross-pieces, as shown in Fig. 1. Between each pair ot' upright posts is a case, O, resting upon a stationary fulcrum, and having an arm or bar,D, extending inward nearly to the center, from which is suspended a tlag, E, or other device best adapted to attract attention. The case O contains a stationary Weight, R, which counterbalances the bar D, and a movable Weight, Q, sliding horizontally in a groove, S. The movable Weights Q are connected by chains to the pulleys L beneath the ground, and the pulleys L are attached to pulleys K, moving upon the same center. Motion imparted to one set of pulleys,\M,N.is reversed upon the other through the intermediate pulleys L K, so that the Weights Q will always move trom or toward each other. The pulleys M N are operated by the levers P, which, in turn, are operated by a pulleyupon the engine, which strikes and raises the spring H, and, consequently, the lever P attached thereto.
Having thus set forth the essential features of my invention, I will now proceed to describeits operation, commencing with the parts in the position shown by the dotted lines, Fig. 1. Upon the approach ot' the train o cars, the
spring-board G and spring H being located at a convenient distance from the crossing, the pulley upon the engine raises the spring H, which raises the lever I), and, through the arrangement ot' pulley; and chains before described, the Weights Q are moved forward toward each other until they pass the center ot' the case C, when the bars D fall into the position shown in Fig. 1, and may be readily seen by any one 'approaching After the train has passed and the engine reaches a similar springboard, G, and spring H, the pulley upon the engine strikes and raises up the latter in like manner, which moves the levers P, and carries the weights Q outward and past the center of the case C, which causes the bars D to be thrown back or up into their former position, as shown by dotted lines in Fig. 1. The Weight Q, instead of running in a straight line, may be caused to change its position by running around a circle.
What I claim as my invention, and desire to secure by Letters Patent, is
1. The sliding weight Q and the case C, combined and operating together in the manner and for the purposes specified.
2. The combination ot' the spring-board Gr and H and levers P, and the pulleys N M L K, the whole arranged and operating together for the purpose of communicating motion to the weight Q.
JOHN EDWARDS ROSS.
Witnesses:
Trios. W. ROBINSON, CEAS. M. Ross.
Publications (1)
Publication Number | Publication Date |
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US181012A true US181012A (en) | 1876-08-15 |
Family
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US181012D Expired - Lifetime US181012A (en) | Improvement in automatic railroad-signals |
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- US US181012D patent/US181012A/en not_active Expired - Lifetime
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