GB516673A - A contact or switch device for use in connection with electrical systems for recording the departure and/or arrival time of vehicles - Google Patents
A contact or switch device for use in connection with electrical systems for recording the departure and/or arrival time of vehiclesInfo
- Publication number
- GB516673A GB516673A GB1962338A GB1962338A GB516673A GB 516673 A GB516673 A GB 516673A GB 1962338 A GB1962338 A GB 1962338A GB 1962338 A GB1962338 A GB 1962338A GB 516673 A GB516673 A GB 516673A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- platform
- lever
- recording
- departure
- 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
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/02—Detecting movement of traffic to be counted or controlled using treadles built into the road
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Air Bags (AREA)
Abstract
516,673. Retractive switches. NEWMAN & SONS, Ltd., W., SHEAD, H. C., and DEAKIN, T. T. July 2, 1938, No. 19623. [Class 38 (v)] When a fire-engine or other vehicle passes over a platform 3 level with the ground, the platform tilts about an axis 5 against the action of springs 10 and actuates a lever 21 which closes a recording circuit. The lever 21 turns about an axis 18 and has a crossbar 14 carrying rollers 15 which are pressed up into engagement with the platform 3 by a spring 22. The lever 21 may either carry a contact 23 adapted to engage a fixed contact 27 or it may act upon a movable contact arm. To test the device, a rod is inserted in a hole in the platform immediately above the contact arm 21.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1962338A GB516673A (en) | 1938-07-02 | 1938-07-02 | A contact or switch device for use in connection with electrical systems for recording the departure and/or arrival time of vehicles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1962338A GB516673A (en) | 1938-07-02 | 1938-07-02 | A contact or switch device for use in connection with electrical systems for recording the departure and/or arrival time of vehicles |
Publications (1)
Publication Number | Publication Date |
---|---|
GB516673A true GB516673A (en) | 1940-01-09 |
Family
ID=10132445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1962338A Expired GB516673A (en) | 1938-07-02 | 1938-07-02 | A contact or switch device for use in connection with electrical systems for recording the departure and/or arrival time of vehicles |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB516673A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1169001B (en) * | 1958-10-02 | 1964-04-30 | Stanley Works | Door mat designed as an electrical switch |
FR2590534A1 (en) * | 1985-11-27 | 1987-05-29 | Soule Sa | INSTALLATION FOR DETECTING PRESENCE ON A GUIDE TRACK OF A VEHICLE |
GB2183919A (en) * | 1985-12-06 | 1987-06-10 | Cyril John Peachey | Safety mat elements |
-
1938
- 1938-07-02 GB GB1962338A patent/GB516673A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1169001B (en) * | 1958-10-02 | 1964-04-30 | Stanley Works | Door mat designed as an electrical switch |
FR2590534A1 (en) * | 1985-11-27 | 1987-05-29 | Soule Sa | INSTALLATION FOR DETECTING PRESENCE ON A GUIDE TRACK OF A VEHICLE |
US4771698A (en) * | 1985-11-27 | 1988-09-20 | Soule | Sensing system for a tracked vehicle transportation system |
GB2183919A (en) * | 1985-12-06 | 1987-06-10 | Cyril John Peachey | Safety mat elements |
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