US1290495A - Car-signal. - Google Patents

Description

L. R. BOSTICK.

CAR SIGNAL.

APPLICATION-FILED AUG.3. 19w

1,290,495. Patented Jan. 7,1919.

2 SHEETS-SHEET I.

L.R..Bqsiiciz3,

L R. BOSTICK.

CAR SIGNAL.

APPLICATION FILED AUG.3. 1916 Patented Jam, 1919.

2 SHEETS-SHEET 2 Ema.

nals, of which the following LEVY R. BOSTICK, OF NEW ORLEANS, LOUISIANA.

CAR-SIGNAL.

Specification of Letters Patent.

Application filed August a, 1916. Serial No. 112,9 4.

To all whom it may concern.-

-Be it known that I, LEVY R. Bos'rrcx, a citizen of the United States, residing at New Orleans, in the parish of Orleans and State of Louisiana, have invented certain new and useful Improvements in Car-Sigisa specification.

This invention relates to an improvement in signal devices for street cars and the object of the invention is to afi'ord complete protection to passengers leaving the car, to prevent rear end collisions and to save loss of time through unnecessary slowing up of approaching cars.

With these various objects in view the invention consists in the novel features of construction hereinafter described, pointed out.

in the claims and shown in the accompanying drawings, in which Figure lis a side elevation of a car provided with my signal device, and partly broken away.

Fig. 2 is a diagrammatic view of the circuits, certain boxes being shown in section.

Fig. 3 is a front elevation of a car showing the location of the box thereon.

Fig. 4 is a section on the line H of Fig.

Fig. 5 is a section on the line 5-5 of Fig. 4.

In the drawings 1 and 2 designate suitable boxes of wood or' metal which are placed on the front and rear of the car, these terms being relative, and the boxes being placed above the headlight of the car.

Each box contains a bell 3 and an electric light bulb 4 and suitable front and side openings 5 are formed in each box in alinement with the bulbs, said openings having red colored panes therein. Or if desired .the lamp bulb may be coloredred. lVithin the car vestibule and in easy reach of the motorman and conductor are pivoted switches 7, one at each end of the car, and adapted to close certain circuits, when brought into engagement with contact points 6.

A suitable battery8 is venient point in the car.

From the battery lead conductors a and b. A circuit 0 is formed by suitable Wire leading from conductor a to one of the contacts 6, completed by the cotiperating switch 6 thence to the lamp in box 1 and then to a bell in box 2 and back to conductor I) placed at any conand to the battery. A circuit d is also prpvided leading from conductor a through the other switch, located at the rear end of the car, to the lamp in box 2, the bell in box 1, and back to the battery.

These circuitsmay be run in any desired manner so long as the desired result is obtained.

Both circuits are normally broken atthe switches.

It will now be obvious that if the motorman brings the switch lever 7 at his end of the car into engagement with the contact 6 the lamp 4 in box 1 will be lighted and bell 3 in box 2, on the rear, will ring. The light will continue to show and the bell to ring as long as the circuit 0 is left closed and current is supplied from battery 8.

This permits the motorman to have free use'of both hands while the signals are op erating which would not be the case if ordinary push buttons were employed to close the circuit.

Should the conductor close the switch at his end of the car the reverse set of signals would be given, and if both switches are closed both bells and both lights will be-. come operative.

I am aware of the fact that bells have been placed on cars to warn discharged passengers against the approach of a car from an opposite direction and on an adjacent track; and I am also aware that signal lights have been provided for cars.

But the sounding or displaying of a single signal, or signals at one end of a car only, do not give the full measure of protection designed to be furnished by my device.

Assuming that box 1 is at the front of the car and that said car on approaching a stopping place receives a signal in the usual manner to stop to discharge passengers, the

motorman seeing an approaching car on the other track moves switch lever 7 to position on the contact 6. A light is displayed in box 1 at the front and the bell 3 is sounded in box 2 at the rear. The first signal, from box 1 warns the motorman of the approaching car that he is about to pass a car stopping to let passengers off. a night signal when such warning is usually necessary. The passenger is also warned by the bell at the rear end that there is an approaching car on the other track, and this signal is desired at all times, day as well as night.

i This is of course Patented Jan. '7, 1919.

. The constant necessity of checking the speed of a carevery time another car is passed at.

a corner, crossing or stopping point causes much loss of time, and much of this could be avoided by giving a signal to the approaching car when speed was to be reduced.

Furthermore it often occurs at night that there is a closely following car. In such cases the conductor can also throw his switch and the light signal will be given at the rear, thus notifying the following car that the one ahead is coming to a stop, either to discharge or take on a passenger, or through the trolley leaving the wire. It is for this last reason that I employ a batteryseparate from the power supplied to operate the car, so that the signals are operative even when the car itself is without current for either motive or lighting purposes.

I therefore rovide for three distinct signahng operations, all independent of the i aeasee motive power of the car, viz., to the ap proaching car, to the passengers, and to a ranged at one end of the car for closing one of said circuits and means arranged at the opposite end for closing the other circuit.

2. The combination with a car, a bell arranged at each end of the car, a signal light arranged at each end of the car, a normally open switch arranged at each end of the car, a battery, an electric circuit including said battery, the signal light and switch at the front end and the bell at the rear end of the car, and a second circuit including the battery, the switch and signal light at the rear end of the car and the bell at the forward end of the car, as and for the purpose set forth.

In testimony whereof I afiix my signature.

' LEVY R. BOSTICK.

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