GB204386A - Improvements in means for automatically stopping trains when the signals are set at "danger" - Google Patents
Improvements in means for automatically stopping trains when the signals are set at "danger"Info
- Publication number
- GB204386A GB204386A GB1767922A GB1767922A GB204386A GB 204386 A GB204386 A GB 204386A GB 1767922 A GB1767922 A GB 1767922A GB 1767922 A GB1767922 A GB 1767922A GB 204386 A GB204386 A GB 204386A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ramp
- danger
- signal
- lever
- box
- 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
- 230000003137 locomotive effect Effects 0.000 abstract 2
- 230000000994 depressogenic effect Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
- B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
- B61L3/04—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling mechanically
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
- Braking Elements And Transmission Devices (AREA)
Abstract
204,386. Leadley, H. W. June 27,1922. Track apparatus for actuating signals on trains and stopping trains.-Comprises a particular arrangement of ramp-operated apparatus whereby the brakes are applied and the steam valve closed automatically when a locomotive over-runs a signal set to " danger." Two locking devices are also provided to hold the ramp raised in the danger position, one operating automatically each time the signal is placed to " danger," and releasable from the signal box, the other operating when a signal wire &c. breaks, and not releasable from the signal box. A ramp a, Fig. 6, is supported on crank discs c<1>, one of which is rotated so as to raise the ramp when the signal is placed to " danger." A shoe e, Fig. 2, in a guide f, when raised by the ramp operates the brake-valve i by a slot and pin connection j. A fall of pressure in the brakepipe k operates a piston in a cylinder j<1> so as to close the throttle lever q by means of linkwork m, n, p. Operation of the valve i by hand therefore closes the throttle. The ramp is weighted so as to tend to assume the " danger " position and is held in that position by a spring catch r locked by a member r<1> which is passed into an aperture in the horizontal arm of the catch. Member r<1> is moved into engagement by a spring s acting through linkwork, and is disengaged by a pedal t, Fig. 8, in the signal-box. The pedal is locked in the depressed position by a catch t' when the lever is pulled to " clear," and is released by a link u<1> when the lever is returned to " danger." If the operating connection between the ramp and signal-box breaks, the ramp moves to a higher position than otherwise so that a lever w connected with the disc c' by a link w<1> operates a plunger v to lock the member r so that it can only be redeased by hand. The valve i may be closed by a seal so as to record its operation. The apparatus may be modified for a pressure system, and for use on electric locomotives, in which case a switch is actuated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1767922A GB204386A (en) | 1922-06-27 | 1922-06-27 | Improvements in means for automatically stopping trains when the signals are set at "danger" |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1767922A GB204386A (en) | 1922-06-27 | 1922-06-27 | Improvements in means for automatically stopping trains when the signals are set at "danger" |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB204386A true GB204386A (en) | 1923-09-27 |
Family
ID=10099308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1767922A Expired GB204386A (en) | 1922-06-27 | 1922-06-27 | Improvements in means for automatically stopping trains when the signals are set at "danger" |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB204386A (en) |
-
1922
- 1922-06-27 GB GB1767922A patent/GB204386A/en not_active Expired
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