GB573853A - Improvements in and relating to devices for preventing overloading of geared pulley hoists - Google Patents
Improvements in and relating to devices for preventing overloading of geared pulley hoistsInfo
- Publication number
- GB573853A GB573853A GB1703143A GB1703143A GB573853A GB 573853 A GB573853 A GB 573853A GB 1703143 A GB1703143 A GB 1703143A GB 1703143 A GB1703143 A GB 1703143A GB 573853 A GB573853 A GB 573853A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- relating
- devices
- hoists
- geared pulley
- 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
- B66D3/12—Chain or like hand-operated tackles with or without power transmission gearing between operating member and lifting rope, chain or cable
- B66D3/16—Chain or like hand-operated tackles with or without power transmission gearing between operating member and lifting rope, chain or cable operated by an endless chain passing over a pulley or a sprocket
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
573,853. Pulley-hoists. PERMAN, P. E. Oct. 16, 1943, No. 17031. [Class 78 (v)] In a geared pulley-hoist which is actuated through worm gearing, overloading is prevented by a ratchet device which is brought into action after a predetermined axial displacement of the worm shaft against spring pressure. The worm shaft 9 is slidably mounted in bearings 10, 12 and is prevented from moving to the right by a collar 11. Movement to the left against the resistance of the spring 18 can take place until the pawl 21, Fig. 3, comes into engagement with the ratchet wheel 13, which is fast on the shaft. A disc 14 rigidly connected with the wheel 13 bears against a friction disc 15 which is free on the shaft and bears against a ratchet wheel 16, also free on the shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1703143A GB573853A (en) | 1943-10-16 | 1943-10-16 | Improvements in and relating to devices for preventing overloading of geared pulley hoists |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1703143A GB573853A (en) | 1943-10-16 | 1943-10-16 | Improvements in and relating to devices for preventing overloading of geared pulley hoists |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB573853A true GB573853A (en) | 1945-12-10 |
Family
ID=10087978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1703143A Expired GB573853A (en) | 1943-10-16 | 1943-10-16 | Improvements in and relating to devices for preventing overloading of geared pulley hoists |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB573853A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444916A (en) * | 2014-11-30 | 2015-03-25 | 重庆三贵机械制造有限公司 | Friction brake for hoisting machine |
-
1943
- 1943-10-16 GB GB1703143A patent/GB573853A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444916A (en) * | 2014-11-30 | 2015-03-25 | 重庆三贵机械制造有限公司 | Friction brake for hoisting machine |
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