GB138659A - Improvements in or relating to safety or control means for hoists, cranes and like apparatus - Google Patents

Improvements in or relating to safety or control means for hoists, cranes and like apparatus

Info

Publication number
GB138659A
GB138659A GB1966118A GB1966118A GB138659A GB 138659 A GB138659 A GB 138659A GB 1966118 A GB1966118 A GB 1966118A GB 1966118 A GB1966118 A GB 1966118A GB 138659 A GB138659 A GB 138659A
Authority
GB
United Kingdom
Prior art keywords
lever
rope
winding
gear
elliston
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
GB1966118A
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.)
ELLISTON EVANS AND JACKSON Ltd
Original Assignee
ELLISTON EVANS AND JACKSON 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 ELLISTON EVANS AND JACKSON Ltd filed Critical ELLISTON EVANS AND JACKSON Ltd
Priority to GB1966118A priority Critical patent/GB138659A/en
Publication of GB138659A publication Critical patent/GB138659A/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
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/18—Power-operated hoists
    • B66D3/24—Applications of limit switches

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

138,659. Elliston, Evans, & Jackson, and Elliston, E. R. Nov. 28, 1918. Overwinding, preventing.-An electric clutch or connexion is provided between the control lever or rope and the winding-gear, so that when the circuit of the electric device is automatically broken at the end of the wind, the control lever or rope is freed from the winding-gear, which is thereby put out of action and the winding stopped. The invention is shown applied to a hoist of the kind in which the winding-drum 2 is carried in eccentrically-mounted bearings which may be rotated by a lever 7 to bring a friction wheel 5 on the drum shaft into contact with a constantly rotating wheel 4. The lever 7 is raised by a rope 8 acting through an electromagnet 10, the circuit of which is completed through two switches 15 which may be opened by a nut 17 travelling in accordance with the movement of the hoisting-rope 9. The switches 15 may be operated by stops on the hoisting-rope or by any part driven by the winding-gear. When the lever 7 is released, the friction gear disengages and a brake is applied. Where the hoist is operated directly by a hand-lever, one member of the electro-magnet may be carried by a second lever, so that when the current is on, this lever and the lever 7 move as one.
GB1966118A 1918-11-28 1918-11-28 Improvements in or relating to safety or control means for hoists, cranes and like apparatus Expired GB138659A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1966118A GB138659A (en) 1918-11-28 1918-11-28 Improvements in or relating to safety or control means for hoists, cranes and like apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1966118A GB138659A (en) 1918-11-28 1918-11-28 Improvements in or relating to safety or control means for hoists, cranes and like apparatus

Publications (1)

Publication Number Publication Date
GB138659A true GB138659A (en) 1920-02-19

Family

ID=10133068

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1966118A Expired GB138659A (en) 1918-11-28 1918-11-28 Improvements in or relating to safety or control means for hoists, cranes and like apparatus

Country Status (1)

Country Link
GB (1) GB138659A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467726A (en) * 1944-07-07 1949-04-19 Westinghouse Electric Corp Electric winch
FR2185584A1 (en) * 1972-04-18 1974-01-04 Hydraulik Brattvaag As

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467726A (en) * 1944-07-07 1949-04-19 Westinghouse Electric Corp Electric winch
FR2185584A1 (en) * 1972-04-18 1974-01-04 Hydraulik Brattvaag As

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