GB189526A - Improvements in road barriers for stopping vehicles - Google Patents

Improvements in road barriers for stopping vehicles

Info

Publication number
GB189526A
GB189526A GB2301721A GB2301721A GB189526A GB 189526 A GB189526 A GB 189526A GB 2301721 A GB2301721 A GB 2301721A GB 2301721 A GB2301721 A GB 2301721A GB 189526 A GB189526 A GB 189526A
Authority
GB
United Kingdom
Prior art keywords
weight
chains
stopping
support
travel
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
GB2301721A
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 GB2301721A priority Critical patent/GB189526A/en
Publication of GB189526A publication Critical patent/GB189526A/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
    • B61L29/02—Guards or obstacles for preventing access to the route

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Abstract

189,526. Strauss, J. B. Aug. 30, 1921. Energy-absorbing elements.- A road barrier for gradually stopping vehicles comprises an impact-receiving part 3 connected to primary and secondary retarding-mechanisms acting in succession. The part 3, consisting of flexible cables, &c., is connected to chains 5 which pass through spacers 4 guided on the supports 1. Each spacer is connected by a chain 13 to the driving-wheel 15 of a motor 17 located at 18 in the base of the support, so as to raise or lower the barrier. The chains 5 pass over pulleys 6 on the support and pulleys 7 on a weight 8 constituting the primary means for stopping the vehicle. The weight 8 in its travel engages the secondary friction device 11 which may produce a clamping effect increasing with the travel of the weight.
GB2301721A 1921-08-30 1921-08-30 Improvements in road barriers for stopping vehicles Expired GB189526A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2301721A GB189526A (en) 1921-08-30 1921-08-30 Improvements in road barriers for stopping vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2301721A GB189526A (en) 1921-08-30 1921-08-30 Improvements in road barriers for stopping vehicles

Publications (1)

Publication Number Publication Date
GB189526A true GB189526A (en) 1922-11-30

Family

ID=10188740

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2301721A Expired GB189526A (en) 1921-08-30 1921-08-30 Improvements in road barriers for stopping vehicles

Country Status (1)

Country Link
GB (1) GB189526A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2194819A (en) * 1986-08-28 1988-03-16 John Michael Southgate Counterbalanced raisable barrier
GB2248651A (en) * 1990-09-26 1992-04-15 Kenneth Marden Henfrey Drive mechanism for traffic barriers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2194819A (en) * 1986-08-28 1988-03-16 John Michael Southgate Counterbalanced raisable barrier
GB2248651A (en) * 1990-09-26 1992-04-15 Kenneth Marden Henfrey Drive mechanism for traffic barriers
GB2248651B (en) * 1990-09-26 1994-09-07 Kenneth Marden Henfrey Drive mechanism for vertically rotating beams/traffic barriers
US5415055A (en) * 1990-09-26 1995-05-16 Sine Engineering Ltd. Drive mechanism for a vertically rotating member

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