US740127A

US740127A - Signal-compensator.

Info

Publication number: US740127A
Application number: US12015902A
Authority: US
Inventors: James T Hambay
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-08-18
Filing date: 1902-08-18
Publication date: 1903-09-29
Anticipated expiration: 1920-09-29

Description

No. 740,127. PATENTED SEPT. 29, 1903. J. T. HAMBAY. SIGNAL 'GOMPENSATOR.

APPLICATION FILED AUG. 18. 1902. I H0 MODEL.

I III WITNESSES v No. 740,127. PATENTED SEPT. 29, 1903.

J. T. HAMBAY.

SIGNAL GOMPENSATOB. APPLICATION FILED AUG.1,i9b&

N0 MODEL. 2 SHEETS-SHEBT 2.

WITNESSES: INVENTOR l ATTORNEY.

I Patented September 29, 1903.

PATE T OFFIC JAMES T. HAMBAY, or NEW YORK, N. Y.

Sl'GNAh-COMPENSATOR.

SPECIFICATION forming part of Letters Patent No. 740,127, dated September 29,- 1903.

Application filed August 18, 1902. Serial No. 120,169. (No model.)

To aZZ whom it may concern. v

Be it known that I, J AMES T. HAMBAY, a

' citizen of the United States, and a resident of New York city, State of New York, have invented certain new and useful Improvements in Signal-Compensators, of which the following is a specification.

My invention relates to a signal-compensator in a railway signal apparatus, and is adapted to obviate the disadvantages heretofore existing caused by the expansion and contraction on account of change in tempera ture of certain of the operating parts of the signal device. The uncertainty of operation caused by such expansion and-contraction has been a serious detriment to the use of mechanical signal apparatus, and the means heretofore adopted to overcome the same have been either too complicated in structure or uncertain in operation to be efiective. By my invention 1 have provided a device which is simple and efiective in operation and adapt-- ed to be used with signal apparatus of any desired length.

In the followingI have described with reference to the accompanying drawings a structure illustrating my invention, the features thereof being more particularly pointed out hereinafter in the claims.

In the drawings, Figurel is a diagrammatic representation of a railway signal apparatus provided with my compensator. Fig.

2 is a top View of the same enlarged, portions being broken away. Fig. 3 is a side view of a portion of the compensator device,-showing one means of accomplishing the invention and particularly adapted for long-distance signaling; and Fig. 4: is a side view of another portion of the same, showing another means of accomplishing the invention and particularly adapted for signals operated near the home station.

Similar letters indicate throughout the several "views.

a a a indicate the railway-tracks.

1) indicates the signal-tower, in which are the ordinary operating-levers cc, to which one end of eachof the flexible wires (1 d and d d are attached in the usual manner.

e e indicate the semaphore-posts, having the semaphoresff pivoted thereon in the usual manner.

similar parts adapted to pass.

9 g indicate the levers, pivoted on the semaphore-posts e e, respectively, to which the other end of the wires 01 d and d d are attached.

h h indicate rigid rods connecting the respective semaphores with the levers g g.

i t 2' indicate pulleys over which the wires d d and d d pass.

.jindicates a rigid metallic rod or pipe firmly held at one end on a suitable foundation 7c and at the other end pivoted to one arm l of a bell-crank lever Z, pivotally supported on a suitable foundation on by means of pin 71. The other arm 0f the bell-crank lever l is provided with jaws Z Z forming bearings for sheaves 0 0, over which the wires d 'd are Foundation m also supports sheaves p 19, over which the wires d d are also adapted to pass.

r7" are supports for holding the rod and wires (2 d in alinement..

, s is a sleeve mounted on rodj and having pivotally attached thereto one end of an arm t, pivotally mounted at its other end on a suitable foundation m. The armt is provided with sheaves p 10, around which the wires d d are adapted to pass. The length of therod j and the relative proportions of the arms of the bell-crank lever Z or the arm 15 are so arranged in comparison with the length of the signal-wires d d and d d that the expansion and contraction of the rod j will compensate the expansion and contraction of the wires as desired, thus obviating the necessity of extremely long compensating rods.

The operation of my device is as follows: As the rodj expands it will give a longitudinal thrust to the arm Z of the bell-crank lever Z, thus raising the other arm Z of the lever, carrying the sheaves 0 o, and taking up the slack in the wires 01 d caused by the expansion thereof.

The arrangement of the parts, a:

as is obvious, will keep a constant and pre- ICC the thrust in any desired proportion, while for short-distance signaling the movement of the arm 25 may exactly compensate the lengthening or shortening of the wires d d in the same proportion, as whatever longitudinal motion is given to the block .9 may be made equal to the expansion or contraction of the wires (1 d.

It is obvious that the form and details of construction of the parts may be varied without departing from the spirit of my invention, and I do not confine myself to the details shown.

Having described my invention, what I claim, and desire to secure by Letters Patent of the United States, is-

1. A signal-compensator comprising a metallic pipe firmly held at one point and free to move at another, a flexible wire and means operated by the expansion and contraction of the pipe for taking up the slack in the wire.

2. A signal-compensator comprising a metallic pipe firmly held at one point and free to move at another, a flexible wire, a bellcrank lever adapted to receive motion by the expansion and contraction of the pipe, and means operated by the lever adapted to keep a constant tension on the wire,

3. A signal-compensator comprising a metallic pipe firmly held at one end and free to move at another, a bell-crank lever having one arm connected to the free end of the pipe and the otherarm provided with jaws, sheaves support-ed in said jaws, flexible wires passing through said sheaves in such manner that the expansion and contraction of the pipe will keep a constant tension on the Wires.

4. A signal-compensator comprising a metallic rod or pipe firmly held at one end and free to moveat the other, a bell-crank lever having one arm connected to the free end of the rod or pipe and the other arm provided with jaws, sheaves supported in said jaws, flexible wires passing over said sheaves and means to prevent said wires from running oi? the sheaves, the arrangement of parts being such that the expansion and contraction of the rod or pipe will keep a constant tension on the wires.

5. A signal-compensator comprising a metallic rod or pipe firmly held at one point and free to move at another, an arm pivoted one end on said rod or pipe and the other on a fixed foundation, a sheave supported by said arm and a flexible wire passing over said sheave, the parts being arranged in such manner that the expansion and contraction of the rod or pipe will keep a constant tension on the wire.

6. A signal-compensator comprising a'metallic rod or pipe firmly held at one point and free to move at another, an arm pivoted one end on said rod or pipe and the other on a fixed foundation, jaws in said arm between said pivotal points, a sheave supported in said jaws and a flexible wire passing over said sheave the parts being so arranged that the expansion or contraction of the rod or pipe will keep a constant tension on the wire.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

JAMES T. I-IAMBAY. Witnesses:

SEABURY C. MASTICK, GRACE L. HEASLEY.