GB544423A - Improvements relating to hoisting gear - Google Patents

Improvements relating to hoisting gear

Info

Publication number
GB544423A
GB544423A GB1647340A GB1647340A GB544423A GB 544423 A GB544423 A GB 544423A GB 1647340 A GB1647340 A GB 1647340A GB 1647340 A GB1647340 A GB 1647340A GB 544423 A GB544423 A GB 544423A
Authority
GB
United Kingdom
Prior art keywords
pulleys
driven
hoisting gear
differential
cosway
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
GB1647340A
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.)
COSWAY SALES Ltd
GEORGE PASMORE COSWAY
Original Assignee
COSWAY SALES Ltd
GEORGE PASMORE COSWAY
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 COSWAY SALES Ltd, GEORGE PASMORE COSWAY filed Critical COSWAY SALES Ltd
Priority to GB1647340A priority Critical patent/GB544423A/en
Publication of GB544423A publication Critical patent/GB544423A/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
    • B66D1/26—Rope, cable, or chain winding mechanisms; Capstans having several drums or barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D2700/00—Capstans, winches or hoists
    • B66D2700/01—Winches, capstans or pivots
    • B66D2700/0125—Motor operated winches
    • B66D2700/0166—Winches with multiple drums or with drums with multiple parts of different diameter

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Abstract

544,423. Differential hoisting gear. COSWAY (SALES), Ltd., and COSWAY, G. P. Nov. 14,1940, No. 16473. [Class 78 (v)] A differential hoisting gear has two independent pulleys 11, 12 each driven by its own motor selectively in either direction. A single cable 17 passes round the pulleys and in one bight is suspended a counter-weight 18 and in the other the load 16. The pulleys may be of the same diameter and driven at different speeds, or of different diameters and driven at the same speed. When both pulleys turn in the same direction a full differential effect is obtained, by stopping one or the other of the motors either of two hoisting speeds can be selected, and by driving the pulleys in opposite directions a top-speed lift or drop is attained. The pulleys are of capstan form and a sufficient number of turns of the cable is wound round each to grip adequately. The counterweight 18 is approximately 30 degrees of the maximum load, and electric motors are preferably employed.
GB1647340A 1940-11-14 1940-11-14 Improvements relating to hoisting gear Expired GB544423A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1647340A GB544423A (en) 1940-11-14 1940-11-14 Improvements relating to hoisting gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1647340A GB544423A (en) 1940-11-14 1940-11-14 Improvements relating to hoisting gear

Publications (1)

Publication Number Publication Date
GB544423A true GB544423A (en) 1942-04-13

Family

ID=10077968

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1647340A Expired GB544423A (en) 1940-11-14 1940-11-14 Improvements relating to hoisting gear

Country Status (1)

Country Link
GB (1) GB544423A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105947913A (en) * 2016-07-18 2016-09-21 泉州市劲力工程机械有限公司 Bidirectional tractor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105947913A (en) * 2016-07-18 2016-09-21 泉州市劲力工程机械有限公司 Bidirectional tractor

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