GB487902A - Improvements in blocks for lifting tackle - Google Patents

Improvements in blocks for lifting tackle

Info

Publication number
GB487902A
GB487902A GB632637A GB632637A GB487902A GB 487902 A GB487902 A GB 487902A GB 632637 A GB632637 A GB 632637A GB 632637 A GB632637 A GB 632637A GB 487902 A GB487902 A GB 487902A
Authority
GB
United Kingdom
Prior art keywords
blocks
lifting tackle
pulley
sheave
davits
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
GB632637A
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.)
WILLIAM ARMSTRONG STEVENS
Original Assignee
WILLIAM ARMSTRONG STEVENS
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 WILLIAM ARMSTRONG STEVENS filed Critical WILLIAM ARMSTRONG STEVENS
Priority to GB632637A priority Critical patent/GB487902A/en
Publication of GB487902A publication Critical patent/GB487902A/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
    • B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
    • B66D3/06—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage with more than one pulley
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D2700/00—Capstans, winches or hoists
    • B66D2700/02—Hoists or accessories for hoists
    • B66D2700/026—Pulleys, sheaves, pulley blocks or their mounting
    • B66D2700/028—Pulley blocks with multiple sheaves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)

Abstract

487,902. Pulley - blocks. STEVENS, W.A. March 3, 1937, No. 6326. [Class 78 (v)] In a multiple pulley-block particularly for use on ships' davits 1, the hauling rope 8 is led through an eye 7 which is disposed in line with the outermost sheave and is formed at the end of an arm 6 pivoted freely about the sheave pin 5.
GB632637A 1937-03-03 1937-03-03 Improvements in blocks for lifting tackle Expired GB487902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB632637A GB487902A (en) 1937-03-03 1937-03-03 Improvements in blocks for lifting tackle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB632637A GB487902A (en) 1937-03-03 1937-03-03 Improvements in blocks for lifting tackle

Publications (1)

Publication Number Publication Date
GB487902A true GB487902A (en) 1938-06-28

Family

ID=9812450

Family Applications (1)

Application Number Title Priority Date Filing Date
GB632637A Expired GB487902A (en) 1937-03-03 1937-03-03 Improvements in blocks for lifting tackle

Country Status (1)

Country Link
GB (1) GB487902A (en)

Similar Documents

Publication Publication Date Title
GB1360950A (en) Safety hook
GB487902A (en) Improvements in blocks for lifting tackle
GB533584A (en) Improved cargo sling
GB791534A (en) Improvements in and relating to hoisting devices comprising a jib or boom
GB267825A (en) Improvements in luffing cranes
GB152140A (en) Improvements in or relating to hoisting and like slings
GB1123040A (en) Ships derricks for cargo loading
GB501324A (en) Means for the launching and recovery of waterborne craft from and to ships
GB153478A (en) A new or improved device for use in lifting packing cases and the like
GB544246A (en) Improvements in and relating to ship salvage
GB127144A (en) Improvements in or connected with Ships' Boats Launching Tackle or Gear.
GB605238A (en) Improvements in and relating to means for lowering and hoisting a life boat suspended from two falls
GB615682A (en) Improvements in or relating to boat lowering gear
GB482484A (en) Improvements in or relating to ships' davits
GB1359795A (en) Jib truck and pulley arrangement for cranes
GB930622A (en) A loading device for hauling loads by means of cargo booms
GB563353A (en) Improvements in device for automatic braking in lowering of objects, such as boat tackles
GB893665A (en) Improved ship's derrick assembly
GB551272A (en) Improvements in or relating to portable cranes
GB496627A (en) Hoisting device, particularly for ship's derricks
GB170945A (en) Improvements in and relating to lowering and releasing gear for ships' boats
GB494775A (en) Improvements in and relating to blocks for pulley tackles
GB124947A (en) Improvements in Pulley Blocks for Lowering Ships' Boats and similar Articles.
GB585558A (en) Improvements in or relating to a means of controlling the lowering of ships' lifeboats
GB612901A (en) Improvements in and relating to wire rope slings