GB776485A - Improvements relating to hoisting apparatus - Google Patents
Improvements relating to hoisting apparatusInfo
- Publication number
- GB776485A GB776485A GB6814/55A GB681455A GB776485A GB 776485 A GB776485 A GB 776485A GB 6814/55 A GB6814/55 A GB 6814/55A GB 681455 A GB681455 A GB 681455A GB 776485 A GB776485 A GB 776485A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- load
- plate
- ratchet
- 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
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/12—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/07—Brakes with axial thrust for winches, hoists or similar devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Emergency Lowering Means (AREA)
Abstract
776,485. Hoists. PUTZER, H. March 8, 1955 [May 11, 1954], No. 6814/55. Class 78 (5). Hoisting apparatus comprises a shaft 2 having a brake disc or ratchet 5 freely rotatable thereon, a brake plate 3 fixed to said shaft, a driving member 4 threaded on the shaft and adapted when rotated in one direction to advance along the shaft to trap the brake disc between the member and the plate and thus lock the plate to the shaft, stop means 9 limiting rotation of member 4 relatively to said shaft in the opposite direction, and means 12 for releasably holding the member relative to said shaft. As shown, the hoisting drum or pulley is geared to shaft 2, and handle (or hand wheel) 7 has a pawl 8 reversible to allow for the ascent or descent of the load cable operated by said drum or pulley. Oscillation of the handle drives member 4, which drives the shaft to raise the load and conversely, allows the shaft to turn to lower the load. When there is no load on the cable a sharp pull on the rope causes dog 12 to lodge in notch 15 to bind together the member 4 and shaft 2 so that ratchet 5 is free and a further pull on the rope unwinds it.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE776485X | 1954-05-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB776485A true GB776485A (en) | 1957-06-05 |
Family
ID=6686543
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6814/55A Expired GB776485A (en) | 1954-05-11 | 1955-03-08 | Improvements relating to hoisting apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB776485A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2210846A (en) * | 1987-10-10 | 1989-06-21 | Didsbury Eng | Manually operated hoist |
-
1955
- 1955-03-08 GB GB6814/55A patent/GB776485A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2210846A (en) * | 1987-10-10 | 1989-06-21 | Didsbury Eng | Manually operated hoist |
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