GB450892A - Improvements in and relating to winding handles - Google Patents

Improvements in and relating to winding handles

Info

Publication number
GB450892A
GB450892A GB1052835A GB1052835A GB450892A GB 450892 A GB450892 A GB 450892A GB 1052835 A GB1052835 A GB 1052835A GB 1052835 A GB1052835 A GB 1052835A GB 450892 A GB450892 A GB 450892A
Authority
GB
United Kingdom
Prior art keywords
shaft
plunger
spring
recess
handle
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
GB1052835A
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
Priority to GB1052835A priority Critical patent/GB450892A/en
Publication of GB450892A publication Critical patent/GB450892A/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)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Abstract

450,892. Hand-cranks. SLEIGH, H. L., CHESTON, A. S., and STUART, F. J., Widney Works, Bagot Street, Birmingham. April 5, 1935, No. 10528. [Class 136 (ii)] In winding handles or cranks for raising and lowering windows, shutters, &c. on vehicles, ships, &c. and of the type incorporating slipping- clutch mechanism permitting interruption of the drive when a predetermined driving-strain has been exceeded, a spring- actuated plunger or member is incorporated in the handle for slipping engagement with the winding shaft, such plunger or member being adapted to retain the handle normally in position on the shaft and to transmit the drive from the handle to the shaft in a manner permitting relative movement between the handle and shaft when a predetermined driving strain is exceeded. The arm 4 of the crank is provided with a passage 5 communicating with a hole 6 in a boss 7, this hole fitting over the end of the winding-shaft 8, which is provided with an annular groove 14 in the base of which at one side of the shaft is formed a conical recess 15. A plunger 16 with a conical end 17 is mounted in the passage 5 and is forced by a spring 18 into the recess 15, in which position drive is transmitted to the shaft 8. If a predetermined driving force is exceeded (e.g. when a window &c. meets an obstruction), the plunger 16 slips out of the recess 15 into the groove 14, whereby the drive is interrupted, the groove 14 preventing detachment of the crank from the shaft. The compression of the spring 18 is adjusted by means of a screw 20, which passes through and secures the centre pin 10 of the grip 9. The grip 9 is rotatable on the pin 10 and is resiliently mounted by means of a spring 11 interposed between the base of a recess 12 and a head 13 on the pin 10. A rod 19 held by the screw 20 forms a stop to limit the outward movement of the plunger 16. The plunger 16 may be replaced by a steel ball, and further modifications of detail are described.
GB1052835A 1935-04-05 1935-04-05 Improvements in and relating to winding handles Expired GB450892A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1052835A GB450892A (en) 1935-04-05 1935-04-05 Improvements in and relating to winding handles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1052835A GB450892A (en) 1935-04-05 1935-04-05 Improvements in and relating to winding handles

Publications (1)

Publication Number Publication Date
GB450892A true GB450892A (en) 1936-07-27

Family

ID=9969476

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1052835A Expired GB450892A (en) 1935-04-05 1935-04-05 Improvements in and relating to winding handles

Country Status (1)

Country Link
GB (1) GB450892A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3333662A1 (en) * 1983-09-17 1985-03-28 Gebr. Happich Gmbh, 5600 Wuppertal Window crank
US5394769A (en) * 1993-02-25 1995-03-07 Titan Australia Pty Limited Handle
US5509327A (en) * 1991-05-27 1996-04-23 Titan Australia Pty Limited Winch handle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3333662A1 (en) * 1983-09-17 1985-03-28 Gebr. Happich Gmbh, 5600 Wuppertal Window crank
US5509327A (en) * 1991-05-27 1996-04-23 Titan Australia Pty Limited Winch handle
US5394769A (en) * 1993-02-25 1995-03-07 Titan Australia Pty Limited Handle

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