GB164929A - Improvements in and relating to accident preventing devices for cranes and the like - Google Patents
Improvements in and relating to accident preventing devices for cranes and the likeInfo
- Publication number
- GB164929A GB164929A GB1151220A GB1151220A GB164929A GB 164929 A GB164929 A GB 164929A GB 1151220 A GB1151220 A GB 1151220A GB 1151220 A GB1151220 A GB 1151220A GB 164929 A GB164929 A GB 164929A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- platforms
- bridge
- cranes
- track
- 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
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/08—Electrical assemblies or electrical control devices for cranes, winches, capstans or electrical hoists
- B66C2700/084—Protection measures
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
164,929. Arrol & Co., Ltd., Sir W., and Shepherd, R. G. April 26, 1920. Overhead travellers.-The trollies or bridges of travelling-cranes are fitted with emergency power cut-off gear operable by individuals prevented from escaping from the track. Platforms a, fitted with hand-rails b, are pivoted near the ends of each wheel axle and are maintained normally in the position shown by springs c. The weight of a man stepping on to any one of the platforms, depresses it and thereby through a cable j opens a switch controlling the locking-means of the main power switch. Upon the opening of this auxiliary switch the main switch opens automatically and a brake is applied to stop the bridge. The operator cannot re-start the bridge by manipulating the controlling-handle, until the main switch is relocked by the restoration of the electromagnetic locking-means. In some instances the apparatus may be used for stopping the bridge at predetermined points, by operating the platforms through the medium of stops on the track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1151220A GB164929A (en) | 1920-04-26 | 1920-04-26 | Improvements in and relating to accident preventing devices for cranes and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1151220A GB164929A (en) | 1920-04-26 | 1920-04-26 | Improvements in and relating to accident preventing devices for cranes and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB164929A true GB164929A (en) | 1921-06-23 |
Family
ID=9987599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1151220A Expired GB164929A (en) | 1920-04-26 | 1920-04-26 | Improvements in and relating to accident preventing devices for cranes and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB164929A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106006391A (en) * | 2016-08-09 | 2016-10-12 | 莱芜钢铁集团有限公司 | Travelling crane and boarding/alighting safety device of travelling crane |
-
1920
- 1920-04-26 GB GB1151220A patent/GB164929A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106006391A (en) * | 2016-08-09 | 2016-10-12 | 莱芜钢铁集团有限公司 | Travelling crane and boarding/alighting safety device of travelling crane |
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