GB190809815A - Improvements in and relating to Means for Operating Hand Worked Railway Points and Switches. - Google Patents
Improvements in and relating to Means for Operating Hand Worked Railway Points and Switches.Info
- Publication number
- GB190809815A GB190809815A GB190809815DA GB190809815A GB 190809815 A GB190809815 A GB 190809815A GB 190809815D A GB190809815D A GB 190809815DA GB 190809815 A GB190809815 A GB 190809815A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- switches
- points
- trailed
- bell
- 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
Landscapes
- Railway Tracks (AREA)
Abstract
9815. Williams, L. W., and Walker, W. May 6. Points and switches, railway. Relates to selfreversing two-way switch levers and retaining- devices, by which the point tongues are normally retained in either of their two set positions, and are reversed automatically by the vehicle wheels when trailed through. The ground lever 1, Fig. 1, is mounted on a pin 2 and engages the forked or slotted end of one arm 6 of a bell-crank lever mounted on a vertical pin, the other arm 7 of which is connected to one of the point tie-rods 11. Fig. 6 shows the plan of a modified construction of ground lever, in which the bell-crank lever is replaced by a slotted lever 28, pivoted at 29. A projecting lug 13 of V-shape is formed on the underside of the tie-rod 11 so as to engage a grooved roller 14 mounted in a bracket 16, supported either by a sleeper or suitable rigid bar 17, or by a bar of spring steel or suitable material which will allow a small amount of yield. The interaction of the lug 13 and pulley ensures that the tongue comes to rest in one of its two extreme positions and causes the reversal of the points when trailed through. Figs. 4 and 5 show modified arrangements of the retaining - device. Specification No. 14,426, A.D. 1906, is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190809815T | 1908-05-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190809815A true GB190809815A (en) | 1909-04-22 |
Family
ID=32208768
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190809815D Expired GB190809815A (en) | 1908-05-06 | 1908-05-06 | Improvements in and relating to Means for Operating Hand Worked Railway Points and Switches. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190809815A (en) |
-
1908
- 1908-05-06 GB GB190809815D patent/GB190809815A/en not_active Expired
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