US700041A - Signal. - Google Patents

Description

No. 700,041. Patented May l3, I902.

W. H. HARTLINE.

SIGNAL (Application med Dec. 12, 1901.

(No Model.)

W IYLVESSES:

UNITED STATES PATENT QFFICE.

. \VILLIAM H. IIARTIJINE, OF TAMAQUA, PENNSYLVANIA.

SIGNAL.

SIECIFICATION forming part of Letters Patent No. 700,041, dated May 13, 1902.

Application filed December 12, 1901. Serial No. 85,626. (No model.)

To all whom it may concern.-

Be it known that I, WILLIAM H. HARTLINE, a citizen of the United States of America, residing at Tamaqua, in the county of'Schuylkill and State of Pennsylvania, have invented certain new and useful Improvements in Sig nals, of which the following is aspecificationq of the alarm when the engineer is on guard and is aware of the condition of the signal,

such means comprising a hand-controlled Valve which closes the fluid-pipe on which the signal is mounted.

Furthermore, the object of the invention'is to produce a signal and its operating mechanism which can be actuated by a person at the side of-the moving engine,and, fin'ally,'the object is to produce a device of thecharacter noted which will possess advantages in points of simplicity, durability, and efficiency,pro ving at the same time comparatively inexpensive to produce and sustain.

With the foregoing and other objects in view the invention consists in the details of construction and in the arrangement and com,- bination of parts to be hereinafter more fully set forth and claimed.

In describing the invention in detail reference willbe had to the accompanying drawings, forming part of this specification, wherein like characters denote corresponding parts in the several'views, and in which- Figure 1 is a view-in elevation of an engine with the invention applied. Fig. 2 is aview in detail of the alarm and its connection. Fig. 3 is a view ofthe semaphore and trip. 4 Fig. 4 is an enlarged detail of a fragment thereof.

In the drawings, 1 indicates the railroad-, track; 2, a semaphore-post; 3, a semaphorearm suitably pivoted and having a connection 4, by which it. is swung into a practically horizontal position through the medium of the bell-crank lever 5, operated by a pull on a wire 6 or the like connection strung to a watchmans tower.

A block 7, with a cam-surface S,'is slidable on the plates 9, secured to cross-ties 10. The block has a yoke 11, to which is connected a link 12, said link being pivoted to the bellcrank lever 5. The parts are in such position that normally the block 7 is stationed a distance from the rail; but when the semaphore-arm is elevated said block is moved closer to the rail in order that the signal-cone trolling lever may beactuated through its contact with the block, thus warning the engineer that the danger-signal is set against him.

When the semaphore-arm is released, it falls by gravity, and the bell-crank lever will assume its normal position and draw the block 7 fron1 the rail.

The signal-controlling lever 13 is pivoted at the front, in order that obstructions may actuate the lever when the front of the engine has reached them, that the engineer may havea warning. A rod 15 is pivoted to the upper end of the lever 13 and extends rearwardly to the cab. The length of the rod maybe varied by the turnbuckle 16, or said rod may be solid and made the desired length 'to suit'the particular engine for which it is designed.

A SlIlOIll pipe l7-is tapped onto the trainpipe' 18 'of -the air-brake system just under the engineers valve. The pipe 17 has a valve 19, which is under the control and in reach of the engineer. A second valve 20 is interposed in the pipe, and the rod 15 is pivoted to thehandle of the valve, the parts being so positioned that as the lever 13 contacts with the block or other obstruction the rod will be moved longitudinally toward the front of the engine, therebypartially rotatingthe valveplug and permitting air from the'train-pipe to escape through the pipe 17 to a whistle 21 on the end of said pipe.'- iWhen the engineer is aware of the danger-signal being set against him and does not want the alarm to sound, the valve 19 is closed, thus preventing theair from reaching the lever-operated valve or the whistle.

If desired, a series of blocks may be connected by wires to work in unison with the at 14 to the frame of a locomotive, preferably operation of a semaphore-arm. It will also be noted that other connections may be made for actuating or moving the initial block.

The construction, operation, and advantages will, it is thought, be understood from the foregoing description, it being noted that changes in the proportion and details of construction may be resorted to for successfully carrying the invention into practice without departing from the scope thereof.

Having fully described the invention, what I claim as new, and desire to secure by Letters Patent, is-

In a signal, a semaphore-post and its arm, a bell-crank pivoted to the post near the bottom, a cam-block slidable with relation to one of the rails of a railway-track, a yoke secured to the block, a link connected to the yoke and pivotally connected to the bellcrank, means whereby the bell-crank operates to lift the semaphore-arm and move the block close to the rail, a tripping-lever carried by the engine operated by contacting with the cam'-block,a pipe tapped in the trainpipe of an air-brake system, a whistle on the pipe, a valve in the pipe and a connection from the tripping-lever to the valve whereby said valve is opened when the lever is tripped as and for the purpose described.

In testimony whereof I affix my signature, in the presence of two witnesses, this 11th day of December, 1901.

XVILLIAM H. IIARTLINE.

Witnesses:

WALTER P. PLUMLEY, FRANK S. APPLEMAN.

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