GB704538A - Improvements in and relating to pulley blocks of the snatch type - Google Patents
Improvements in and relating to pulley blocks of the snatch typeInfo
- Publication number
- GB704538A GB704538A GB2638750A GB2638750A GB704538A GB 704538 A GB704538 A GB 704538A GB 2638750 A GB2638750 A GB 2638750A GB 2638750 A GB2638750 A GB 2638750A GB 704538 A GB704538 A GB 704538A
- Authority
- GB
- United Kingdom
- Prior art keywords
- catch
- snatch
- relating
- pulley
- pulley blocks
- 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
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
- B66D3/046—Openable pulley blocks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Emergency Lowering Means (AREA)
Abstract
704,538. Snatch-blocks. LOVERIDGE, Ltd., and JOHNSTON, F. J. Oct. 30, 1951. [Oct. 30, 1950]. No. 26387/50. Class 78 (5) A snatch block, provided with pulley 4, has cheek 3 pivoted at 2 to pulley-frame 1 and retained by catch 18. The latter is pivoted at 17 and provided at its ends with hook 22 and opening 19 so that, when swung into closing position, hook 22 engages with hole 6 in axle pin 5 and opening 19 passes over shank 12 provided that the latter has been swung into a horizontal position by rotation of crosshead 7. When the crosshead is rotated to the vertical position shown the catch is locked. Alternatively catch 18 may be ribbed so as to engage in a slot cut in axle pin 5. Specification 301,191, [Class 78 (v)], is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2638750A GB704538A (en) | 1950-10-30 | 1950-10-30 | Improvements in and relating to pulley blocks of the snatch type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2638750A GB704538A (en) | 1950-10-30 | 1950-10-30 | Improvements in and relating to pulley blocks of the snatch type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB704538A true GB704538A (en) | 1954-02-24 |
Family
ID=10242834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2638750A Expired GB704538A (en) | 1950-10-30 | 1950-10-30 | Improvements in and relating to pulley blocks of the snatch type |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB704538A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2426845A2 (en) * | 1978-04-11 | 1979-12-21 | Simon Francois | Pulley block for crane - has detachable side flange to facilitate fitting of cable |
| GB2415421A (en) * | 2004-06-25 | 2005-12-28 | Allen Brothers | Pulley block and mounting base |
| CN109760495A (en) * | 2019-03-11 | 2019-05-17 | 汉腾汽车有限公司 | A kind of adjustable lock catch mounting structure |
-
1950
- 1950-10-30 GB GB2638750A patent/GB704538A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2426845A2 (en) * | 1978-04-11 | 1979-12-21 | Simon Francois | Pulley block for crane - has detachable side flange to facilitate fitting of cable |
| GB2415421A (en) * | 2004-06-25 | 2005-12-28 | Allen Brothers | Pulley block and mounting base |
| GB2415421B (en) * | 2004-06-25 | 2007-05-30 | Allen Brothers | Pulley block and mounting base |
| CN109760495A (en) * | 2019-03-11 | 2019-05-17 | 汉腾汽车有限公司 | A kind of adjustable lock catch mounting structure |
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