GB419533A - Improvements in road contact devices for road traffic signalling apparatus - Google Patents
Improvements in road contact devices for road traffic signalling apparatusInfo
- Publication number
- GB419533A GB419533A GB1428233A GB1428233A GB419533A GB 419533 A GB419533 A GB 419533A GB 1428233 A GB1428233 A GB 1428233A GB 1428233 A GB1428233 A GB 1428233A GB 419533 A GB419533 A GB 419533A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strip
- road
- pad
- strips
- contact
- 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
- 230000011664 signaling Effects 0.000 title abstract 2
- 239000004744 fabric Substances 0.000 abstract 1
- 239000011810 insulating material Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000012858 resilient material Substances 0.000 abstract 1
- 239000004753 textile Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/14—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for operation by a part of the human body other than the hand, e.g. by foot
- H01H3/141—Cushion or mat switches
- H01H3/142—Cushion or mat switches of the elongated strip type
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
- E05Y2600/40—Mounting location; Visibility of the elements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
419,533. Road signals for controlling traffic. SCOTT, W. H., Gothic Works, Norwich. May 17, 1933, No. 14282. [Class 118 (ii).] A road pad for road-traffic signalling comprises a yieldable tube enclosing electric contacts and clamped between rigid sidebars having profiled or inclined faces to engage the tube. The pad is narrow, and the contacts are bedded on resilient material so that, when contact has been made, the contacts move down en bloc and the side-bars take substantially the whole load. As described, the upper contact strip 1 is situated in a channel section resilient strip 2 of insulating material which rests on the lower contact strip 1 and has its base formed with a series of holes or one or more longitudinal openings for the passage of contact studs 4 which may be carried by either or both strips 1. The lower strip rests on a cushion comprising a thick rubber strip 8 which may be perforated or ribbed and may rest on reinforced fabric strips 9. A resilient cord 7 having a textile core 6 is seated in channel member 2 above the upper strip 1 and all the parts so far described are enclosed in a rubber tube 10 and outer tyre-like cover 12. Pressure of a vehicle wheel is transmitted to the strips 1 by cord 7 and, if the pressure is great the cord 7, strips 1 and channel member 2 move down as a whole owing to the yielding strip 8, so that the wheel rests on the side - bars 14 and damage to the pad is avoided. The pad or two similar pads arranged in parallel are secured to a metal bed 15 by the side-bars 14 which have profiled sides. The leads 11 from the contact strips are in strip form and are taken to terminals in a box 16 formed in the bed 15. The box 16 is closed by a rubber disc 18 and plate 17, the end of the inner tube 10 being flattened against the end of bed 15 by a road block 19. The pad may comprise two units, each as shown in Fig. 4, arranged side-by-side with a profiled bar between them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1428233A GB419533A (en) | 1933-05-17 | 1933-05-17 | Improvements in road contact devices for road traffic signalling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1428233A GB419533A (en) | 1933-05-17 | 1933-05-17 | Improvements in road contact devices for road traffic signalling apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB419533A true GB419533A (en) | 1934-11-14 |
Family
ID=10038332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1428233A Expired GB419533A (en) | 1933-05-17 | 1933-05-17 | Improvements in road contact devices for road traffic signalling apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB419533A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4455465A (en) * | 1983-01-10 | 1984-06-19 | Automatic Toll Systems, Inc. | Treadle assembly with plural replaceable treadle switches |
-
1933
- 1933-05-17 GB GB1428233A patent/GB419533A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4455465A (en) * | 1983-01-10 | 1984-06-19 | Automatic Toll Systems, Inc. | Treadle assembly with plural replaceable treadle switches |
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