GB567989A - Improvements in helicopters - Google Patents

Improvements in helicopters

Info

Publication number
GB567989A
GB567989A GB790943A GB790943A GB567989A GB 567989 A GB567989 A GB 567989A GB 790943 A GB790943 A GB 790943A GB 790943 A GB790943 A GB 790943A GB 567989 A GB567989 A GB 567989A
Authority
GB
United Kingdom
Prior art keywords
universal
loxodromic
pullin
weir
forks
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
GB790943A
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.)
Weir Group PLC
Original Assignee
G&J Weir 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 G&J Weir Ltd filed Critical G&J Weir Ltd
Priority to GB790943A priority Critical patent/GB567989A/en
Publication of GB567989A publication Critical patent/GB567989A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/37—Rotors having articulated joints
    • B64C27/41—Rotors having articulated joints with flapping hinge or universal joint, common to the blades

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

567,989. Universal joints. WEIR, Ltd., G. & J., and PULLIN, C. G. May 18, 1943, No. 7909. [Class 80 (ii)] [Also in Group XXXIII] A constant velocity-ratio universal-joint comprises forked members 123, 128 having four pairs of oppositely inclined loxodromic grooves cut in their opposed surfaces to take four balls 133. A fifth ball 132 engages spherical seatings on projections 125, 130 on the two forks to maintain correct centring.
GB790943A 1943-05-18 1943-05-18 Improvements in helicopters Expired GB567989A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB790943A GB567989A (en) 1943-05-18 1943-05-18 Improvements in helicopters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB790943A GB567989A (en) 1943-05-18 1943-05-18 Improvements in helicopters

Publications (1)

Publication Number Publication Date
GB567989A true GB567989A (en) 1945-03-13

Family

ID=9842130

Family Applications (1)

Application Number Title Priority Date Filing Date
GB790943A Expired GB567989A (en) 1943-05-18 1943-05-18 Improvements in helicopters

Country Status (1)

Country Link
GB (1) GB567989A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2183583A (en) * 1985-12-04 1987-06-10 Property Associates Limited Gyroplanes or autogyros; rotor control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2183583A (en) * 1985-12-04 1987-06-10 Property Associates Limited Gyroplanes or autogyros; rotor control
GB2183583B (en) * 1985-12-04 1989-10-04 Property Associates Limited Aircraft

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