GB549430A - Improvements in electrical token apparatus for railways - Google Patents
Improvements in electrical token apparatus for railwaysInfo
- Publication number
- GB549430A GB549430A GB1363241A GB1363241A GB549430A GB 549430 A GB549430 A GB 549430A GB 1363241 A GB1363241 A GB 1363241A GB 1363241 A GB1363241 A GB 1363241A GB 549430 A GB549430 A GB 549430A
- Authority
- GB
- United Kingdom
- Prior art keywords
- commutator
- token
- key
- bolt
- normal
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/22—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in two directions over the same pair of rails
- B61L23/24—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in two directions over the same pair of rails using token systems, e.g. train staffs, tablets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
549,430. Token apparatus for railway traffic control. TYER & CO., Ltd., and KING, V. S. Oct. 23, 1941, No. 13632. [Class 105] In a token system for railway traffic control in which a commutator preparing electric circuits is rotated through 180 degrees from either of its " normal " positions when a token is inserted in or removed from the magazine, as in Specification 23417/12, [Class 105], means are provided to prevent an operation of the ringing key, which would be ineffective, if the commutator has not been fully rotated 180 degrees. As shown the commutator 1 has a locking device 4, biased by spring 5, moved clockwise by the segment 9 of token 3 during the rotation but returned to the locking position shown when the commutator is in either of its normal positions, this return being prevented by segment 9 when in an intermediate position. Clockwise movement of member 4 slides a bolt 7 into the path of a collar 6 on the ringing key 2, operation of which is thus prevented unless the commutator is in normal position, permitting return movement of the bolt to the left by cam action of collar 6 on the bolt end when key 2 is operated. The arrangement shown also locks the commutator against movement whilst the key is in operated position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1363241A GB549430A (en) | 1941-10-23 | 1941-10-23 | Improvements in electrical token apparatus for railways |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1363241A GB549430A (en) | 1941-10-23 | 1941-10-23 | Improvements in electrical token apparatus for railways |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB549430A true GB549430A (en) | 1942-11-20 |
Family
ID=10026547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1363241A Expired GB549430A (en) | 1941-10-23 | 1941-10-23 | Improvements in electrical token apparatus for railways |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB549430A (en) |
-
1941
- 1941-10-23 GB GB1363241A patent/GB549430A/en not_active Expired
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