US738232A - Railway switch-signal. - Google Patents

Railway switch-signal. Download PDF

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Publication number
US738232A
US738232A US15953303A US1903159533A US738232A US 738232 A US738232 A US 738232A US 15953303 A US15953303 A US 15953303A US 1903159533 A US1903159533 A US 1903159533A US 738232 A US738232 A US 738232A
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United States
Prior art keywords
lever
signal
switch
targets
stand
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Expired - Lifetime
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US15953303A
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Andrew J Park
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Individual
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Priority to US15953303A priority Critical patent/US738232A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/12—Visible signals
    • B61L5/18—Light signals; Mechanisms associated therewith, e.g. blinders
    • B61L5/1809—Daylight signals
    • B61L5/1818—Daylight signals using mobile coloured screen

Definitions

  • This invention relates particularly to railway switch and signal stands characterized by improvement with respect to the exhibition of day and night signals, with respect to means to lock the stand, and with respect to general construction, as will more fully hereinafter appear.
  • Figure l is a side elevation of the stand in one position.
  • Fig. 2 is a side elevation in the other position, and
  • Fig. 3 is an edge or front view.
  • the signal-stand comprises a pair of uprights 6, properly spaced apart to allow the targets '7 and lantern 8 to swing between them.
  • the lever 9 is pivoted at 11110 the top of the signal-stand, and its rear end is connected by a rod 12 to the joint of the lever 1-5 and connecting-rod let of the switch-stand.
  • Said lever and connecting-rod are double or formed of'two parallel rods side by side for the sake of stability and strength.
  • the rods forming the lever are pivoted at 15 to the front ends of a pair of base-bars 16,
  • a hand-lever 18 Fulcrumed on a bolt 17, connecting the rear ends of the base-bars, is a hand-lever 18, whereby the switch and signal are operated.
  • This lever lies between a pair of levers 19, which are also pivoted on the bolt 17 and are articulated at 20 to the rear ends of the connecting-rods 1d.
  • the lever 18 is forked at the top, as at 21, and the ends of the forks are adapted to engage in a hole at 22 in the end of a locking-catch 23, which swings vertically on a bolt 2% between the connectingrods 14.
  • the catch is weighted at the other end, as at 25, so that itis normallydisengaged.
  • the catch is caused to engage one or the other of the forks and held by a pin or lock 26 through a hole in the end of the fork.
  • the switch-rod is indicated at 27, attached to the lever 13. 7

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

PATENTED SEPT. 8, 1903.
A. J. PARK. RAILWAY SWITCH SIGNAL.
APPLIOATIQK FILED JUN}! 1,1903.
' 1Y0 MODEL.
vznns o0. PHOTO-LITKO wuumomn. n. c.
UNITED STATES Patented September 8, 1903.
PATENT OFFICE.
RAILWAY SWITCH-SIGNAL.
SPECIFICATION forming part of Letters Patent No. 738,232, dated September 8, 1903.
Application filed June 1, 1903. Serial No. 159,533. (No model.)
To all whont it ntay concern.-
Be it known that 1, ANDREW J. PARK, a citizen of the United States, residing atBokchito, Choctaw Nation, Indian Territory, have invented new and useful Improvements in Railway SwitclrSignals, of which the following is a specification.
This invention relates particularly to railway switch and signal stands characterized by improvement with respect to the exhibition of day and night signals, with respect to means to lock the stand, and with respect to general construction, as will more fully hereinafter appear.
In the accompanying drawings, Figure l is a side elevation of the stand in one position. Fig. 2 is a side elevation in the other position, and Fig. 3 is an edge or front view.
Referring specifically to the drawings, the signal-stand comprises a pair of uprights 6, properly spaced apart to allow the targets '7 and lantern 8 to swing between them. There are two targets fastened to the ends of a forked lever 9 a sufficient distance apart to allow the lantern 8, which is hung at 10 between the forks of the lever, to swing between the targets when the signal is lowered, as shown in Fig. 1. The lever 9 is pivoted at 11110 the top of the signal-stand, and its rear end is connected by a rod 12 to the joint of the lever 1-5 and connecting-rod let of the switch-stand. Said lever and connecting-rod are double or formed of'two parallel rods side by side for the sake of stability and strength. The rods forming the lever are pivoted at 15 to the front ends of a pair of base-bars 16,
which are securely fastened to the switchblock or tie.
Fulcrumed on a bolt 17, connecting the rear ends of the base-bars, is a hand-lever 18, whereby the switch and signal are operated. This lever lies between a pair of levers 19, which are also pivoted on the bolt 17 and are articulated at 20 to the rear ends of the connecting-rods 1d. The lever 18 is forked at the top, as at 21, and the ends of the forks are adapted to engage in a hole at 22 in the end of a locking-catch 23, which swings vertically on a bolt 2% between the connectingrods 14. The catch is weighted at the other end, as at 25, so that itis normallydisengaged.
To look the switch and signal in either position, the catch is caused to engage one or the other of the forks and held by a pin or lock 26 through a hole in the end of the fork. The switch-rod is indicated at 27, attached to the lever 13. 7
It will be seen that when the switch is closed and the signal is lowered, as in Fig. 1, the lantern 8 swings between the targets 7 and is completely obscured thereby, and the targets are substantially obscured by the uprights of the signal-stand. When the switch is thrown, the targets swing out and up to form the day-signal and the lantern swings down from between the targets to form the night-signal, as shown in Fig. 2. When the switch is open, the target and lamp can be plainly seen from either end of the track, but cannot be seen from either end of the track when closed.
What I claim as new, and desire to secure by Letters Patent, is-
1. The combination with a stand, of a vertically-swinging lever pivoted thereto, a pair of targets at the outer end of the lever, and a lantern hung to the lever and'swinging between the targets when lowered.
2. The combination with a pair of uprights, of a lever pivoted to swing vertically therebetween, a pair of targets and a lantern at the outer end of the lever, swinging between the uprights when the lever is lowered.
3. The combination with a switch-stand and its lever, of a signal-stand, a verticallyswinging lever thereon connected to the switch-lever, and a target and lantern carried by the lever, the lantern swinging behind the target when the lever is lowered.
4:. The combination with a switch-stand having two upright levers pivoted at the bottom and connected by a rod at the top, of a locking-latch carried by the connecting-rod and engageable with one of the levers.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
ANDREW J. PARK. Witnesses:
W. M. ORELro, G. D. AYERS.
US15953303A 1903-06-01 1903-06-01 Railway switch-signal. Expired - Lifetime US738232A (en)

Priority Applications (1)

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US15953303A US738232A (en) 1903-06-01 1903-06-01 Railway switch-signal.

Applications Claiming Priority (1)

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US15953303A US738232A (en) 1903-06-01 1903-06-01 Railway switch-signal.

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