GB107638A - Improvements in and relating to Apparatus for Operating Railway Barrier Gates. - Google Patents

Improvements in and relating to Apparatus for Operating Railway Barrier Gates.

Info

Publication number
GB107638A
GB107638A GB941116A GB941116A GB107638A GB 107638 A GB107638 A GB 107638A GB 941116 A GB941116 A GB 941116A GB 941116 A GB941116 A GB 941116A GB 107638 A GB107638 A GB 107638A
Authority
GB
United Kingdom
Prior art keywords
pump
valve
gates
motor
operative position
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB941116A
Inventor
Arthur Henry Johnson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB941116A priority Critical patent/GB107638A/en
Publication of GB107638A publication Critical patent/GB107638A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L29/00—Safety means for rail/road crossing traffic
    • B61L29/24—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning
    • B61L29/243—Transmission mechanism or acoustical signals for gates

Abstract

107,638. Johnson, A. H. July 4, 1916. Operating and controlling gates hydraulically and electrically.-Relates to railway crossing-gate operating-appliances of the kind in which an electric motor drives a pump which is enclosed in a supply reservoir and delivers liquid to the moving element of an hydraulic motor connected to the gates. According to the invention, a single controlling-valve is provided so arranged that, by moving the valve-lever into its successive operating positions, the gates may be started slowly, then moved quickly, and finally slowed down to bring the gates gently against the stops. The valve 9 is mounted between the pump 1 and the hydraulic motor 4, which may be of the vane or piston type, and is so constructed that, in its neutral position, the motor ports 18, 19 are closed and the by-passes 16, 17 to the pump reservoir 3 are fully open; in the first operative position, the motor ports 18, 19 and the by-passes 16, 17 are all partly open; and in the second operative position, the motor ports 18, 19 are fully open and the bypasses 16, 17 closed. Relief valves 10 are provided in the passage 7 leading from the pump to the valve 9. The valve-lever may be arranged to operate the switch of the electric motor driving the pump, so that the pump is only started when the valve is moved to its first operative position in either direction. When a supply of liquid under pressure is continuously available, the electric motor and the pump may be dispensed with, the controlling-valve admitting the liquid to, or bypassing it from, the hydraulic motor as required. The gates may be interlocked with the signals by known arrangements.
GB941116A 1916-07-04 1916-07-04 Improvements in and relating to Apparatus for Operating Railway Barrier Gates. Expired GB107638A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB941116A GB107638A (en) 1916-07-04 1916-07-04 Improvements in and relating to Apparatus for Operating Railway Barrier Gates.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB941116A GB107638A (en) 1916-07-04 1916-07-04 Improvements in and relating to Apparatus for Operating Railway Barrier Gates.

Publications (1)

Publication Number Publication Date
GB107638A true GB107638A (en) 1917-07-04

Family

ID=32247216

Family Applications (1)

Application Number Title Priority Date Filing Date
GB941116A Expired GB107638A (en) 1916-07-04 1916-07-04 Improvements in and relating to Apparatus for Operating Railway Barrier Gates.

Country Status (1)

Country Link
GB (1) GB107638A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2459865A1 (en) * 1979-06-27 1981-01-16 Wabco Fahrzeugbremsen Gmbh PNEUMATIC DOOR CYLINDER

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2459865A1 (en) * 1979-06-27 1981-01-16 Wabco Fahrzeugbremsen Gmbh PNEUMATIC DOOR CYLINDER

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