GB190915040A - Improvements in Blocks or Hoisting Gear. - Google Patents

Improvements in Blocks or Hoisting Gear.

Info

Publication number
GB190915040A
GB190915040A GB190915040DA GB190915040A GB 190915040 A GB190915040 A GB 190915040A GB 190915040D A GB190915040D A GB 190915040DA GB 190915040 A GB190915040 A GB 190915040A
Authority
GB
United Kingdom
Prior art keywords
sheave
block
differential
self
smaller
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
Inventor
Louis Tabulo
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB190915040A publication Critical patent/GB190915040A/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
    • B66D3/12—Chain or like hand-operated tackles with or without power transmission gearing between operating member and lifting rope, chain or cable

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Transmission Devices (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

15,040. Tabulo, L. June 28. Differential pulleyblocks; self-sustaining gear.-In a differential pulley-block, the lower or hanging sheave is fitted with self-sustain. ing gear. In the form of block illustrated, both upper sheaves run loose on a fixed pin 4, and the smaller sheave is provided with a ratchetwheel 5, engaging with pawls 6 carried by the sheave 3. Different speeds of hoisting may be obtained by pulling on the ropes a, b in different ways. To lower the load, the chain is pulled on the side a only. The lower sheave 8 is provided with ratchet teeth engaging pawls on a brake drum or drums mounted loosely on the axle 11. A brake block 15 pivoted to the frame 9 at 16 has the hook 10 attached to its end so that the load causes the block to press against the drum 14. This allows the sheave 8 to rotate in one direction only If desired, one of the differential sheaves, preferably the smaller, may be held against rotation.
GB190915040D 1909-06-28 1909-06-28 Improvements in Blocks or Hoisting Gear. Expired GB190915040A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190915040T 1909-06-28

Publications (1)

Publication Number Publication Date
GB190915040A true GB190915040A (en) 1910-09-28

Family

ID=32556268

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190915040D Expired GB190915040A (en) 1909-06-28 1909-06-28 Improvements in Blocks or Hoisting Gear.

Country Status (1)

Country Link
GB (1) GB190915040A (en)

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