GB878404A - A safety device for automatically locking together a pair of relatively movable parts - Google Patents
A safety device for automatically locking together a pair of relatively movable partsInfo
- Publication number
- GB878404A GB878404A GB19751/59A GB1975159A GB878404A GB 878404 A GB878404 A GB 878404A GB 19751/59 A GB19751/59 A GB 19751/59A GB 1975159 A GB1975159 A GB 1975159A GB 878404 A GB878404 A GB 878404A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rope
- pin
- relatively movable
- tower
- pair
- 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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/26—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
- B66C23/28—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail constructed to operate at successively higher levels
- B66C23/30—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail constructed to operate at successively higher levels with frameworks composed of telescopic elements
- B66C23/305—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail constructed to operate at successively higher levels with frameworks composed of telescopic elements with locking devices
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
878,404. Erecting tower cranes. TICHAUER S.A., M. June 9, 1959 [Feb. 17, 1959], No. 19751/59. Class 78 (4). [Also in Group XXV] Two members which are relatively movable by means of a rope or cable are automatically locked together when the tension in the rope or cable is relaxed. As shown, the locking device is applied to a tower crane in which two sections 2, 3 of the tower are relatively movable by means of a rope as described in Specification 853,096. A member 7, secured to the tower section 2, slidably supports a pin 8 which is urged by means of a spring 9 towards a member 14, secured to the lower section 3 and provided with slots 15 for receiving the pin. When the lower sections 2, 3 are moved relatively by means of a rope 13, the rope engages in a notch 12 in the pin 8 thereby holding the pin in its full-line position. On relaxing the tension in the rope, the pin 8 moves into engagement with a slot 15 in the member 14 under the action of the spring 9.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR878404X | 1959-02-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB878404A true GB878404A (en) | 1961-09-27 |
Family
ID=9361390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19751/59A Expired GB878404A (en) | 1959-02-17 | 1959-06-09 | A safety device for automatically locking together a pair of relatively movable parts |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB878404A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111517224A (en) * | 2020-04-17 | 2020-08-11 | 中联重科股份有限公司 | Pin shaft monitoring method and device for tower crane jacking operation |
-
1959
- 1959-06-09 GB GB19751/59A patent/GB878404A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111517224A (en) * | 2020-04-17 | 2020-08-11 | 中联重科股份有限公司 | Pin shaft monitoring method and device for tower crane jacking operation |
| CN111517224B (en) * | 2020-04-17 | 2021-08-03 | 中联重科股份有限公司 | Pin shaft monitoring method and device for tower crane jacking operation |
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