GB173857A - Improvements in ground levers for railway and tramway points - Google Patents
Improvements in ground levers for railway and tramway pointsInfo
- Publication number
- GB173857A GB173857A GB2839820A GB2839820A GB173857A GB 173857 A GB173857 A GB 173857A GB 2839820 A GB2839820 A GB 2839820A GB 2839820 A GB2839820 A GB 2839820A GB 173857 A GB173857 A GB 173857A
- Authority
- GB
- United Kingdom
- Prior art keywords
- handle
- crank
- ground
- railway
- points
- 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
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/02—Mechanical devices for operating points or scotch-blocks, e.g. local manual control
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
173,857. Thomson, H. A. Oct. 7, 1920. Ground levers, flush with the roadway, have an adjustable spring 5 connected to a straight crank 3 which operates the points, and a handle operatively connected to the crank 3 at its pivot so as to move circumferentially with it when operated. The handle engages a headpiece 7 which may be separate from or integral with the crank 3. In the former case, Figs. 1 and 4, stops 10, 11 on each allow limited relative movement so as to provide a still handle when trailing through; the handle 13 can be provided with cross pins 15, Fig. 4, and, when not in use, be slid through the casing 1 into a tube or container in the ground, or it can be provided with a hinge 12, Fig. 1, secured in the top of the head-piece, bevels being cut in the casing lid 2 or cast on the frame to guide the handle into a recess. In the latter case, Fig. 3, the crank has a socket 16 to receive a detachable lever or handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2839820A GB173857A (en) | 1920-10-07 | 1920-10-07 | Improvements in ground levers for railway and tramway points |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2839820A GB173857A (en) | 1920-10-07 | 1920-10-07 | Improvements in ground levers for railway and tramway points |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB173857A true GB173857A (en) | 1922-01-09 |
Family
ID=10274979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2839820A Expired GB173857A (en) | 1920-10-07 | 1920-10-07 | Improvements in ground levers for railway and tramway points |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB173857A (en) |
-
1920
- 1920-10-07 GB GB2839820A patent/GB173857A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB173857A (en) | Improvements in ground levers for railway and tramway points | |
| GB353330A (en) | Refuse bucket | |
| USD96181S (en) | Design for a truck tank | |
| GB272135A (en) | Improvements in and connected with dust bins, sanitary bins, and the like | |
| GB349454A (en) | An improved hinged street gulley grate and frame | |
| FR638134A (en) | Closing system for containers with a lid, in which the lid can be moved angularly with respect to the body on which it engages | |
| GB201281A (en) | Improvements in railway switch or point levers | |
| GB157582A (en) | Improvements in dental flasks for use in vulcanising artificial teeth | |
| GB388008A (en) | Improvements in oars | |
| GB492786A (en) | Improvements in or relating to coal cauldrons | |
| GB278914A (en) | Improvements in connection with the handles of perambulators and the like | |
| FR782741A (en) | Shroud with stamped end, forming a closed end, for bicycles, motorcycles, etc. | |
| GB318781A (en) | Improvements in or relating to railway and tramway switch boxes or ground levers | |
| GB509691A (en) | Improvements in or relating to handles for lift or thumb latches | |
| GB233570A (en) | Improvements in casting boxes for casting curved stereotype plates | |
| GB735760A (en) | Improved detachable end closure for tubular containers | |
| GB221429A (en) | Improvements in bed-pans | |
| Bridge | Sir Roger de Coverley: quartet for two violins, viola & violoncello | |
| GB325206A (en) | Improvements in or relating to tyre vulcanizing moulds | |
| GB187868A (en) | Improvements in tea and like kettles | |
| GB293583A (en) | Improvements in or relating to railway point levers | |
| FR739246A (en) | Tipping device for skips or other containers mounted on a frame carried by wheels | |
| GB237497A (en) | Improvements in or relating to railway and tramway switch boxes or ground levers | |
| GB216301A (en) | Improvements in hand levers for operating railway and like points | |
| GB193272A (en) | Improvements in piston and crank connections for pneumatic tools and the like |