GB340349A - Improvements in or relating to swing bridges - Google Patents
Improvements in or relating to swing bridgesInfo
- Publication number
- GB340349A GB340349A GB3077229A GB3077229A GB340349A GB 340349 A GB340349 A GB 340349A GB 3077229 A GB3077229 A GB 3077229A GB 3077229 A GB3077229 A GB 3077229A GB 340349 A GB340349 A GB 340349A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bridge
- raised
- balanced
- shaft
- pivot
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/04—Swing bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Transmission Devices (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
340,349. Swing bridges. DORMAN LONG & CO., Ltd. and PAIN, J. F., 55, Broad way, Westminster. Oct. 10, 1929, No. 30772. [Class 20 (i).] A balanced bilateral bridge is supported hydraulically during the time it is moved from its normal to open position and vice versa and has means to prevent its tilting. The bridge is carried by a bearing plate on the cylinder A of a hydraulic ram the piston B of which is fixed to a pedestal F to form the pivot about which the bridge swings. The bridge is balanced by rollers H running on a flange I at the base of the pedestal. The bridge may be raised by one or more hydraulic jacks so disposed that it is balanced and may then be swung about a central pivot, or it may be raised by any mechanical means and supported upon a hydraulic pivot about which it rotates. The bridge is rotated through gearing D<1>, D<2>, D<5> and a fixed segmental rack E from a shaft J carried by the bridge, the shaft of the pinion D<1> being automatically engaged with and disengaged from the shaft J as the bridge is raised and lowered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3077229A GB340349A (en) | 1929-10-10 | 1929-10-10 | Improvements in or relating to swing bridges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3077229A GB340349A (en) | 1929-10-10 | 1929-10-10 | Improvements in or relating to swing bridges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB340349A true GB340349A (en) | 1931-01-01 |
Family
ID=10312895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3077229A Expired GB340349A (en) | 1929-10-10 | 1929-10-10 | Improvements in or relating to swing bridges |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB340349A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417211A (en) * | 2021-06-11 | 2021-09-21 | 长沙理工大学 | But height-adjusting's double hydraulic pressure formula self-balancing pushes away pressurized auxiliary device |
| CN113494495A (en) * | 2021-06-29 | 2021-10-12 | 同济大学 | Flat rotation type opening bridge is with two side single hydraulic cylinder drive arrangement |
-
1929
- 1929-10-10 GB GB3077229A patent/GB340349A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417211A (en) * | 2021-06-11 | 2021-09-21 | 长沙理工大学 | But height-adjusting's double hydraulic pressure formula self-balancing pushes away pressurized auxiliary device |
| CN113494495A (en) * | 2021-06-29 | 2021-10-12 | 同济大学 | Flat rotation type opening bridge is with two side single hydraulic cylinder drive arrangement |
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