GB339782A - Improvements in and relating to automatic road traffic signals - Google Patents

Improvements in and relating to automatic road traffic signals

Info

Publication number
GB339782A
GB339782A GB3733229A GB3733229A GB339782A GB 339782 A GB339782 A GB 339782A GB 3733229 A GB3733229 A GB 3733229A GB 3733229 A GB3733229 A GB 3733229A GB 339782 A GB339782 A GB 339782A
Authority
GB
United Kingdom
Prior art keywords
collar
latch
relating
road traffic
traffic signals
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
GB3733229A
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 GB3733229A priority Critical patent/GB339782A/en
Publication of GB339782A publication Critical patent/GB339782A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Abstract

339,782. Page, F. Dec. 5, 1929. Road signals.-Cross-road signals automatically actuated by the vehicles depressing road plates. 16 comprise a number of pivoted semaphores 10 adapted to be lifted through slots in a casing 6. Depression of a plate 16 by an approaching vehicle draws endwise a wire 21 and extendssprings 39 until a collar 38 is held by a latch- 41. The tension of the springs 39 then draws a dashpot piston 27 slowly forwards against a spring 28, gradually displacing fluid in a cylinder 24 through a passage 29, and the appropriate signal' 10 is actuated by a rod 13. As soon as the signal is raised fully, an inclined arm 32 trips the latch 41 and releases the collar 38.
GB3733229A 1929-12-05 1929-12-05 Improvements in and relating to automatic road traffic signals Expired GB339782A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3733229A GB339782A (en) 1929-12-05 1929-12-05 Improvements in and relating to automatic road traffic signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3733229A GB339782A (en) 1929-12-05 1929-12-05 Improvements in and relating to automatic road traffic signals

Publications (1)

Publication Number Publication Date
GB339782A true GB339782A (en) 1930-12-18

Family

ID=10395634

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3733229A Expired GB339782A (en) 1929-12-05 1929-12-05 Improvements in and relating to automatic road traffic signals

Country Status (1)

Country Link
GB (1) GB339782A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2908946A (en) * 1955-05-06 1959-10-20 John J Sullivan Structure providing for vertically arranged parking areas

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2908946A (en) * 1955-05-06 1959-10-20 John J Sullivan Structure providing for vertically arranged parking areas

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