GB181180A - Improvements in or relating to winches and the like hoisting apparatus - Google Patents

Improvements in or relating to winches and the like hoisting apparatus

Info

Publication number
GB181180A
GB181180A GB1050721A GB1050721A GB181180A GB 181180 A GB181180 A GB 181180A GB 1050721 A GB1050721 A GB 1050721A GB 1050721 A GB1050721 A GB 1050721A GB 181180 A GB181180 A GB 181180A
Authority
GB
United Kingdom
Prior art keywords
driving
coil
shaft
drum
pawls
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
Application number
GB1050721A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GD Peters and Company Ltd
Original Assignee
GD Peters and Company Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GD Peters and Company Ltd filed Critical GD Peters and Company Ltd
Priority to GB1050721A priority Critical patent/GB181180A/en
Publication of GB181180A publication Critical patent/GB181180A/en
Expired legal-status Critical Current

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
    • B66D1/02—Driving gear
    • B66D1/14—Power transmissions between power sources and drums or barrels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

181,180. Peters & Co., Ltd., G. D., and MacFarlane, G. T. April 9, 1921. Driving-gear for winding and paying-out apparatus; brakes. - The pawl and ratchet braking- mechanism described in Specification 114,650 is fitted to one end of the coil of a coil clutch mounted on the driving-shaft of a winch or the like, so that if the load under gravity lowering exceeds a predetermined speed, the pawl mechanism is actuated automatically to cause the coil to connect the drum to the driving-shaft for a positive downward drive. In the construction shown in Figs. 1 and 2, the driving-shaft 2 rotates constantly in the same direction and drives the drum 1 through epicyclic gearing (not shown). The brake coil 5 is secured at one end 6 to the drum and surrounds a disc 4 fixed on the driving- shaft and having a ratchet-wheel 12 fixed to its outer face. The free end of the coil carries pawls 11 connected by links to blocks 15, which slide in a circular recess in the face of the ratchet-wheel into which they are pressed by plate springs 17 on the links. During hoisting, the drum, coil, and pawls turn clockwise as seen in Fig. 2, while the driving-shaft turns counterclockwise. The effect of this is to tend to bring the links into a radial position, thus lifting the pawls clear of the ratchet-wheel to prevent clattering. During gravity lowering the drum, pawls, and driving- shaft turn counterclockwise. When the drum overruns the driving-shaft, the pawls overrun the ratchet-wheel and cause the inner ends of the links 17 to lag sufficiently to: bring the pawls into engagement with the wheel and thus tighten the coil to connect the drum positively to the driving- shaft. To provide for a positive downward drive of the unloaded rope or of a light load insufficient to run down by gravity, a second coil may be used operated independently by lever-mechanism to grip the driving-shaft at will. In some instances one or two convolutions of the main coil may be utilized as the subsidiary coil.
GB1050721A 1921-04-09 1921-04-09 Improvements in or relating to winches and the like hoisting apparatus Expired GB181180A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1050721A GB181180A (en) 1921-04-09 1921-04-09 Improvements in or relating to winches and the like hoisting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1050721A GB181180A (en) 1921-04-09 1921-04-09 Improvements in or relating to winches and the like hoisting apparatus

Publications (1)

Publication Number Publication Date
GB181180A true GB181180A (en) 1922-06-15

Family

ID=9969094

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1050721A Expired GB181180A (en) 1921-04-09 1921-04-09 Improvements in or relating to winches and the like hoisting apparatus

Country Status (1)

Country Link
GB (1) GB181180A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110937537A (en) * 2019-12-25 2020-03-31 郭瑞光 Winch traction wheel disc for ocean ship
CN111017777A (en) * 2020-01-21 2020-04-17 夏昇涛 Fire-fighting pipeline hoist device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110937537A (en) * 2019-12-25 2020-03-31 郭瑞光 Winch traction wheel disc for ocean ship
CN111017777A (en) * 2020-01-21 2020-04-17 夏昇涛 Fire-fighting pipeline hoist device

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