GB159026A - Improvements in and relating to windlasses - Google Patents
Improvements in and relating to windlassesInfo
- Publication number
- GB159026A GB159026A GB2903719A GB2903719A GB159026A GB 159026 A GB159026 A GB 159026A GB 2903719 A GB2903719 A GB 2903719A GB 2903719 A GB2903719 A GB 2903719A GB 159026 A GB159026 A GB 159026A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gear
- brake
- chain
- driving
- shaft
- 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
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
- B66D1/72—Anchor-chain sprockets; Anchor capstans
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
159,026. Macfarlane, G. T. Nov. 21, 1019. Drum or barrel winding-machines; driving-gear for winding and paying-out apparatus; selfsustaining gear.-Relates to driving-gear for windlasses or capstans and comprises a driving- gear in which a motor running in one direction is connected through reversing-gear to an epicyclic or like clutch capable of sensitive control which is geared to the windlass &c. The motor a drives, through gearing g, a short shaft h connected by bevel-gearing to reversing bevel-wheels clutchable to a shaft l carrying an epicyclic gear t, Fig. 4, which drives a bevel-wheel z geared to a vertical shaft 12 which in turn drives the chain-lifters &c. 17. mounted on the ship's deck, the motor &c. being below the deck. The brake band p is suitably operated to control the epicyclic gear. The chain-lifters 17 are provided with a ratchet device controlled by a ring 20 which is angularly adjustable to put the pawls into or out of action. A brake drum 30, Fig. 8, is mounted on the outer side of each chain-lifter, the brake coils 31 being controlled by loose brake rims 32 to which one end of each coil is fixed. The brake rims can be held by brake-bands 33. This constitutes a selfsustaining gear, since when the coil-brake is hard on the load cannot run back, even when the driving-clutch is disengaged, while when the driving-clutch is engaged the chain-lifter can rotate freely. Another form of self-sustaining gear is also described in which a loose brake rim carries pawls engaging with a ratchet-wheel secured to the chain-lifter. The pawls are linked to blocks sliding with slight friction in grooves in the ratchet-wheel, so that while the chain is being lifted, the pawls are put out of action. A positive connection between the shaft and the chainlifter for driving the latter in either direction can also be effected when desired. For this purpose a member that can slide axially but not rotate on a sleeve keyed to the shaft carries dogs 40 which are capable of engaging the polygonal interior of the drum 30, when operated by a screw through the medium of the hand-levers 45.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2903719A GB159026A (en) | 1919-11-21 | 1919-11-21 | Improvements in and relating to windlasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2903719A GB159026A (en) | 1919-11-21 | 1919-11-21 | Improvements in and relating to windlasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB159026A true GB159026A (en) | 1921-02-21 |
Family
ID=10285211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2903719A Expired GB159026A (en) | 1919-11-21 | 1919-11-21 | Improvements in and relating to windlasses |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB159026A (en) |
-
1919
- 1919-11-21 GB GB2903719A patent/GB159026A/en not_active Expired
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