GB842664A - Improvements in or relating to pulley blocks - Google Patents
Improvements in or relating to pulley blocksInfo
- Publication number
- GB842664A GB842664A GB3303257A GB3303257A GB842664A GB 842664 A GB842664 A GB 842664A GB 3303257 A GB3303257 A GB 3303257A GB 3303257 A GB3303257 A GB 3303257A GB 842664 A GB842664 A GB 842664A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulley
- hook
- relating
- pulley blocks
- slot
- 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)
- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
Abstract
842,664. Pulley - blocks SIMMS (ENGINEERING; Ltd., G. E. Jan. 19, 1959 [Oct. 23, 1957], No. 33032/57. Class 78(5). A snatch-block comprising a pulley 1 and hook 18 both mounted between side-plate. 4, 5, has a pivoted latch 12 formed with a slot 21, the slot co-operating with elongated head 22 of the pivot of the hook 18 so that when the hook i, rotated through 90 degrees the latch is released so that it may be opened to aid the roving of a rope around the pulley 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3303257A GB842664A (en) | 1957-10-23 | 1957-10-23 | Improvements in or relating to pulley blocks |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3303257A GB842664A (en) | 1957-10-23 | 1957-10-23 | Improvements in or relating to pulley blocks |
Publications (1)
Publication Number | Publication Date |
---|---|
GB842664A true GB842664A (en) | 1960-07-27 |
Family
ID=10347612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3303257A Expired GB842664A (en) | 1957-10-23 | 1957-10-23 | Improvements in or relating to pulley blocks |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB842664A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3275301A (en) * | 1964-10-01 | 1966-09-27 | John A Read | Sheave pulley |
-
1957
- 1957-10-23 GB GB3303257A patent/GB842664A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3275301A (en) * | 1964-10-01 | 1966-09-27 | John A Read | Sheave pulley |
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