GB178990A - Improvements in levers or point boxes for operating switches on railways or tramways - Google Patents

Improvements in levers or point boxes for operating switches on railways or tramways

Info

Publication number
GB178990A
GB178990A GB508621A GB508621A GB178990A GB 178990 A GB178990 A GB 178990A GB 508621 A GB508621 A GB 508621A GB 508621 A GB508621 A GB 508621A GB 178990 A GB178990 A GB 178990A
Authority
GB
United Kingdom
Prior art keywords
crank
levers
foot
secured
spring
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
GB508621A
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 GB508621A priority Critical patent/GB178990A/en
Publication of GB178990A publication Critical patent/GB178990A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/68—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having two operating members, one for opening and one for closing the same set of contacts

Landscapes

  • Railway Tracks (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

178,990. Williams, O. R. Feb. 14, 1921. Ground levers.-Railway and like points are operated by foot-levers which actuate a crank under the influence of a spring-controlled pin, the spring throwing the crank over when it has passed the dead-centre. The foot-levers J, J', Fig. 1, are connected to or integral with arms C<1>, C<2> on a crank C moving on a pivot B. A pin E is secured to an eye D<1> on the crank C and carries a spring G and a fulcrum block F, which is held in a strap. H secured to the top of the box A. The point-rod I is secured to an eye D on the crank C or to arms C<3> fitted alongside the crank. In a modification, Fig. 3, one foot-lever is used to actuate the points in either direction, and carries, or is formed as, a plunger N, which engages a lug K on the crank C. The compression springs G may be replaced by tension springs.
GB508621A 1921-02-14 1921-02-14 Improvements in levers or point boxes for operating switches on railways or tramways Expired GB178990A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB508621A GB178990A (en) 1921-02-14 1921-02-14 Improvements in levers or point boxes for operating switches on railways or tramways

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB508621A GB178990A (en) 1921-02-14 1921-02-14 Improvements in levers or point boxes for operating switches on railways or tramways

Publications (1)

Publication Number Publication Date
GB178990A true GB178990A (en) 1922-05-04

Family

ID=9789490

Family Applications (1)

Application Number Title Priority Date Filing Date
GB508621A Expired GB178990A (en) 1921-02-14 1921-02-14 Improvements in levers or point boxes for operating switches on railways or tramways

Country Status (1)

Country Link
GB (1) GB178990A (en)

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