US778729A - Brake-operated signal or tail light. - Google Patents

Brake-operated signal or tail light. Download PDF

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Publication number
US778729A
US778729A US21148204A US1904211482A US778729A US 778729 A US778729 A US 778729A US 21148204 A US21148204 A US 21148204A US 1904211482 A US1904211482 A US 1904211482A US 778729 A US778729 A US 778729A
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Prior art keywords
brake
car
signal
circuit
tail light
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US21148204A
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Samuel N Wilcoxson
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/44—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal

Definitions

  • My invention has for its objects to provide a reliable and practical device for operating a signal-light to indicate that a car has stopped and is stationary on the track and to so prevent danger of a rear collision from moving cars in the rear that cannot otherwise be made cognizant in the dark of the stationary condition of the car until it is run into.
  • This device similar to my Patent No. 758,398, of April 26, 190%, is especially adapted for use upon electric suburban roads, but is not lim:
  • the invention consists,primarily,in an electric switch operated to close a lamp-circuit at the moment of swinging the main brake-lever to stop the car, and consists of intermediate mechanism between the brake and switch whereby the switch is opened and closed by the agency of said brake-beam, and consists, further, in the construction and combination of parts, as hereinafter described, shown in the accompanying drawings, and specifically pointed out in the claim.
  • Figure l is a plan view of the bottom of a car, showing the brake levers, brake beam, switch, and intermediate switch operating mechanism whereby the signal-lamp circuit is opened and closed.
  • Fig. 2 is a perspective view of the main or dead brake-lever, the metal terminals or contacts of a switch which is adapted to make or break the signal-lamp circuit, and mechanism controlled by the said brake-lever for operating the moving terminal plates of the switch.
  • Fig. 3 is a similar view of the device arranged to include a green lamp in the circuit alternately with a red one.
  • 1 is the main brake-lever, pivoted at 2 upon the body of the car, so as to swing freely in either direction.
  • 3 is a link or connecting-rod pivoted at one end to said brake-lever and at the other end to a reciprocating plate 4, which moves in guides 5 upon any convenient part of the car-body or its attachments.
  • metal contacts 6, which form terminals for the lamp-circuit of the car-lamps 1, (indicated at 7.)
  • the car-lamps since the signal-lamps can most readily be included in the lighting-circuit ot' the car.
  • the circuit is represented as a two-Wire circuit, and the opposite terminals 9 are fixed in convenient position to the first-named terminals 6, so that as the brake-lever moves the adjacent terminals are brought into contact or withdrawn therefrom.
  • the action of the brake-lever to brake the wheels is such as to bring the opposing terminals into contact and complete the circuit of a signal-lamp 10, which may be placed wherever most visible at the rear end of the car, which, red, should only show when the brakes are set or being set. If a green light is also desirable for any purpose, the contact plates or springs, which are stationary upon the car, can be separated into sections 9 and 9 or insulated from one an other.
  • the contacts upon the sliding plate will then first engage the spring-contacts 9 and glow the green lamp 10 to indicate a following car.
  • This can be accomplished by means of a slight movement of the brake-1e ver not sufficient to set the brakes; but when the brake-lever is swung far enough to set the brakes the second section of terminal springs 9 will be engaged and the red light will glow as before described. In this manner the danger-signal will be set by the act of setting the brakes and independent of any special act of the motorman.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Description

PATENTED DEC. 27, 1904.
8. N. WILGOXSON. BRAKE OPERATED SIGNAL OR TAIL LIGHT.
APPLICATION FILED JUNE 7, 1904.
.221 We 72107 1 6M ywzza yam? SAMUEL N. XVILCOXSON,
Patented December 27, 1904 PATENT OFFICE.
or ooLLI'NwooI), OHIO.
BRAKE-OPERATED SIGNAL OR TAIL LIGHT.
SPECIFICATION forming part of Letters Patent No. 778,729, dated. December 2'7, 1904.
Application filed June 7,1904. Serial No. 211,482.
To (1.7-1 IUILONL it Ina/y concern:
Be it known that I, SAMUEL N. WILooXsoN, a citizen of the United States, and a resident of Uollinwood, county of (luyahoga, State of Ohio, have invented certain new and useful Improvements in Brake-Operated Signal or Tail Lights, of which I hereby declare the following to be a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.
My invention has for its objects to provide a reliable and practical device for operating a signal-light to indicate that a car has stopped and is stationary on the track and to so prevent danger of a rear collision from moving cars in the rear that cannot otherwise be made cognizant in the dark of the stationary condition of the car until it is run into. This device, similar to my Patent No. 758,398, of April 26, 190%, is especially adapted for use upon electric suburban roads, but is not lim:
' ited in use to any class of rolling-stock.
The invention consists,primarily,in an electric switch operated to close a lamp-circuit at the moment of swinging the main brake-lever to stop the car, and consists of intermediate mechanism between the brake and switch whereby the switch is opened and closed by the agency of said brake-beam, and consists, further, in the construction and combination of parts, as hereinafter described, shown in the accompanying drawings, and specifically pointed out in the claim.
In the accompanying drawings, Figure l is a plan view of the bottom of a car, showing the brake levers, brake beam, switch, and intermediate switch operating mechanism whereby the signal-lamp circuit is opened and closed. Fig. 2 is a perspective view of the main or dead brake-lever, the metal terminals or contacts of a switch which is adapted to make or break the signal-lamp circuit, and mechanism controlled by the said brake-lever for operating the moving terminal plates of the switch. Fig. 3 is a similar view of the device arranged to include a green lamp in the circuit alternately with a red one.
In the views, 1 is the main brake-lever, pivoted at 2 upon the body of the car, so as to swing freely in either direction. 3 is a link or connecting-rod pivoted at one end to said brake-lever and at the other end to a reciprocating plate 4, which moves in guides 5 upon any convenient part of the car-body or its attachments. metal contacts 6, which form terminals for the lamp-circuit of the car-lamps 1, (indicated at 7.)
8 represents, preferably,the car-lamps,since the signal-lamps can most readily be included in the lighting-circuit ot' the car.
The circuit is represented as a two-Wire circuit, and the opposite terminals 9 are fixed in convenient position to the first-named terminals 6, so that as the brake-lever moves the adjacent terminals are brought into contact or withdrawn therefrom. The action of the brake-lever to brake the wheels is such as to bring the opposing terminals into contact and complete the circuit of a signal-lamp 10, which may be placed wherever most visible at the rear end of the car, which, red, should only show when the brakes are set or being set. If a green light is also desirable for any purpose, the contact plates or springs, which are stationary upon the car, can be separated into sections 9 and 9 or insulated from one an other. The contacts upon the sliding plate will then first engage the spring-contacts 9 and glow the green lamp 10 to indicate a following car. This can be accomplished by means of a slight movement of the brake-1e ver not sufficient to set the brakes; but when the brake-lever is swung far enough to set the brakes the second section of terminal springs 9 will be engaged and the red light will glow as before described. In this manner the danger-signal will be set by the act of setting the brakes and independent of any special act of the motorman.
Having described my invention, what I claim as new, and desire to secure by Letters Patent, is
The combination with a car, a main brakelever pivoted thereon, a lamp-circuit for the car and a signal-lamp and circuit, of contact- Upon this plate are secured the terminals for the lamp-circuit of the ear, said neeting means between said plate and said terminals beingmovable, relatively fixed eonlover, substantially as described. 10 tact-terminals for the signal-lamp circuit, and In testimony whereof I hereunto set my means whereby the movements of the movhand this 26th day of April, 1904.
able contact-terminals are controlled by the SAMUEL N. VVILCOXSON. movements of the brake-lever, consisting in a Witnesses:
movable plate or cross-head upon which the HI. M. MONROE,
said movable contacts are secured, and a eon- G150. S. COLE.
US21148204A 1904-06-07 1904-06-07 Brake-operated signal or tail light. Expired - Lifetime US778729A (en)

Priority Applications (1)

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US21148204A US778729A (en) 1904-06-07 1904-06-07 Brake-operated signal or tail light.

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US21148204A US778729A (en) 1904-06-07 1904-06-07 Brake-operated signal or tail light.

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US778729A true US778729A (en) 1904-12-27

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