GB543261A - Improvements relating to hoisting blocks - Google Patents
Improvements relating to hoisting blocksInfo
- Publication number
- GB543261A GB543261A GB13057/40A GB1305740A GB543261A GB 543261 A GB543261 A GB 543261A GB 13057/40 A GB13057/40 A GB 13057/40A GB 1305740 A GB1305740 A GB 1305740A GB 543261 A GB543261 A GB 543261A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- sheaves
- locking
- bearings
- washers
- 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
- B66D3/06—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 with more than one pulley
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/02—Hoists or accessories for hoists
- B66D2700/026—Pulleys, sheaves, pulley blocks or their mounting
- B66D2700/028—Pulley blocks with multiple sheaves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmissions By Endless Flexible Members (AREA)
Abstract
543,261. Pulley blocks. NATIONAL SUPPLY CORPORATION, and OIL WELL ENGINEERING CO., Ltd. Aug. 15, 1940, No. 13057. Convention date, Feb. 7. [Class 78 (v)] [Also in Group XXXIV] A multiple sheave pulley block has a washer 29 fixed on the sheave shaft 5 between each pair of sheaves 28 to prevent the latter from piling against cne another toward one end, with resulting excessive pressure due to accumulated end thrust. The sheaves are mounted on roller bearings 31, the highest speed end bearing being preferably of the tapered roller type. The shaft 5 is stationary and has an upper keyway in which slide keys locking both the washers 29 and the inner races 33 of the bearings 31 to the shaft. Removable line spacers 26 are bolted between the sheaves, and slotted covers 54 are hinged at 57. The load is taken by a clevis 22 carried by links 23, and lubrication tubes 60 are fitted in a bore 59 in the shaft 5 to reach each of the bearings 31. Means are provided for locking the tightening nut 11 of the shaft 5, and also the nuts 21, 14 of the load-supporting shaft 4 and of a suspension pin 3, and also for locking the heads of these three members 3, 4, 5. The nut 11 clamps together all the races 33 and washers 29 on the shaft 5 to prevent end play.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US543261XA | 1940-02-07 | 1940-02-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB543261A true GB543261A (en) | 1942-02-17 |
Family
ID=21990281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13057/40A Expired GB543261A (en) | 1940-02-07 | 1940-08-15 | Improvements relating to hoisting blocks |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB543261A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1604940A3 (en) * | 2004-06-09 | 2006-10-18 | The Crosby Group Inc | Field adjustable hook block for a bridge crane |
CN108529408A (en) * | 2018-05-29 | 2018-09-14 | 太原理工大学 | A kind of head sheave of hoister axis, head sheave and its lubricating arrangement |
-
1940
- 1940-08-15 GB GB13057/40A patent/GB543261A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1604940A3 (en) * | 2004-06-09 | 2006-10-18 | The Crosby Group Inc | Field adjustable hook block for a bridge crane |
CN108529408A (en) * | 2018-05-29 | 2018-09-14 | 太原理工大学 | A kind of head sheave of hoister axis, head sheave and its lubricating arrangement |
CN108529408B (en) * | 2018-05-29 | 2020-04-14 | 太原理工大学 | Hoisting machine head sheave axle, head sheave and lubricating arrangement thereof |
US10859204B2 (en) | 2018-05-29 | 2020-12-08 | Taiyuan University Of Technology | Hoisting sheave shaft, hoisting sheave and lubricating device thereof |
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