GB841478A - Improvements relating to contact mechanisms for repeatedly opening and closing electrical circuits - Google Patents

Improvements relating to contact mechanisms for repeatedly opening and closing electrical circuits

Info

Publication number
GB841478A
GB841478A GB3251455A GB3251455A GB841478A GB 841478 A GB841478 A GB 841478A GB 3251455 A GB3251455 A GB 3251455A GB 3251455 A GB3251455 A GB 3251455A GB 841478 A GB841478 A GB 841478A
Authority
GB
United Kingdom
Prior art keywords
piston
toggle
contacts
lever
plunger
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
GB3251455A
Inventor
Walter Henry Brown
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.)
Trico Ltd
Original Assignee
Trico Ltd
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 Trico Ltd filed Critical Trico Ltd
Priority to GB3251455A priority Critical patent/GB841478A/en
Publication of GB841478A publication Critical patent/GB841478A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B60Q1/34—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 change of drive direction
    • B60Q1/38—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 change of drive direction using immovably-mounted light sources, e.g. fixed flashing lamps
    • B60Q1/387—Mechanical temporisation

Abstract

841,478. Fluid actuation of switches. TRICO-FOLBERTH Ltd. Nov. 14, 1956 [Nov. 14, 1955], No. 32514/55. Class 38 (5). A switch for controlling vehicle flashing light direction indicators comprises contacts operated by a pneumatic motor. The fixed contacts 4a, 5a are adapted to be bridged by a contact 3 resiliently mounted on a piston 2 which is connected at 7 to a toggle lever 8 pivoted to the base at 9. The second lever 10 of the toggle is also pivoted at 9 and is connected at 11 to a valve mechanism, the points 7, 11 being joined by a tension spring 14. When the piston moves into its right-hand position the valves are positioned so that pressure air is applied via entry 18, channel 19, chamber 20 and passage 22 to the righthand face of the piston which thus moves to the left to open the contacts. Near the end of this movement, the toggle snaps over and restores the valves, so that air flows as shown by the arrows to return the piston. The moving contact may be carried on the toggle so as to move with a snap action or the contacts may be outside the case. A solenoid 16, which is energized at the same time as a lamp is selected, has a plunger 15 which when the device is inoperatve holds the lever 10 in its left-hand position so that the piston is held to the right, the device being started by energizing the solenoid to withdraw the plunger. The piston may be operated by suction at the normal venting aperture 23, and may be replaced by a vane.
GB3251455A 1955-11-14 1955-11-14 Improvements relating to contact mechanisms for repeatedly opening and closing electrical circuits Expired GB841478A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3251455A GB841478A (en) 1955-11-14 1955-11-14 Improvements relating to contact mechanisms for repeatedly opening and closing electrical circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3251455A GB841478A (en) 1955-11-14 1955-11-14 Improvements relating to contact mechanisms for repeatedly opening and closing electrical circuits

Publications (1)

Publication Number Publication Date
GB841478A true GB841478A (en) 1960-07-13

Family

ID=10339765

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3251455A Expired GB841478A (en) 1955-11-14 1955-11-14 Improvements relating to contact mechanisms for repeatedly opening and closing electrical circuits

Country Status (1)

Country Link
GB (1) GB841478A (en)

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