GB191328174A - Improved Means for Stopping and Controlling the Reverse Rotation of Winch and similar Hoisting Mechanism. - Google Patents

Improved Means for Stopping and Controlling the Reverse Rotation of Winch and similar Hoisting Mechanism.

Info

Publication number
GB191328174A
GB191328174A GB191328174DA GB191328174A GB 191328174 A GB191328174 A GB 191328174A GB 191328174D A GB191328174D A GB 191328174DA GB 191328174 A GB191328174 A GB 191328174A
Authority
GB
United Kingdom
Prior art keywords
shaft
disk
load
arrested
teeth
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
Mario Francesco Torazzi
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 GB191328174A publication Critical patent/GB191328174A/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
    • B66D1/04—Driving gear manually operated
    • B66D1/06—Safety cranks for preventing unwanted crank rotation and subsequent lowering of the loads

Landscapes

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

Abstract

28,174. Torazzi, M. F. Dec. 6. Driving-gear for winding-apparatus; selfsustaining gear; winch handles, engaging and disengaging.-In connexion with winches and like hoisting-mechanism, means are provided for disconnecting and arresting the handles' or like driving-member when the load begins to run down, and the descent of the load is regulated by a brake which is inoperative during hoisting. A hand-crank shaft 5 is slidably and rotatably mounted in bearings in the winch frame 2 and connected by a dog clutch 20 to the pinion 6 by which the drum is driven. The shaft 5 carries a block 14 having ratchet or oblique teeth 3 engaging similar teeth on a loose grooved disk 19, which is prevented from backward rotation by friction pawls carried by the casing 9. During forward movement of the handle 4, the flat faces of the teeth 3 drive the disk 19, but if the motion is reversed, the disk 19 is arrested and the action of the oblique teeth 3 moves the shaft 5 axially and releases the clutch 20, the handle-shaft being arrested by the friction of the cone 17 on the inside of the casing. The load shaft is arrested by the action of spring-pressed friction pawls 25, which are carried on a disk 27 secured to the pinion 6 and engage an internal groove on a ring 30 enveloped by a brake band 35. Lowering of the load is effected by easing this brake.
GB191328174D 1913-12-06 1913-12-06 Improved Means for Stopping and Controlling the Reverse Rotation of Winch and similar Hoisting Mechanism. Expired GB191328174A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191328174T 1913-12-06

Publications (1)

Publication Number Publication Date
GB191328174A true GB191328174A (en) 1915-04-01

Family

ID=32373098

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191328174D Expired GB191328174A (en) 1913-12-06 1913-12-06 Improved Means for Stopping and Controlling the Reverse Rotation of Winch and similar Hoisting Mechanism.

Country Status (1)

Country Link
GB (1) GB191328174A (en)

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