GB267313A - Improvements in aeronautical propellers - Google Patents

Improvements in aeronautical propellers

Info

Publication number
GB267313A
GB267313A GB714526A GB714526A GB267313A GB 267313 A GB267313 A GB 267313A GB 714526 A GB714526 A GB 714526A GB 714526 A GB714526 A GB 714526A GB 267313 A GB267313 A GB 267313A
Authority
GB
United Kingdom
Prior art keywords
boss
keyways
liner
keyed
thickness
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
GB714526A
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 GB714526A priority Critical patent/GB267313A/en
Publication of GB267313A publication Critical patent/GB267313A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/02—Hub construction
    • B64C11/04—Blade mountings

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Forging (AREA)

Abstract

267,313. Reed, S. A. March 15, 1926. Screw propellers.-Metal air screws with thin blades are forged with a central boss enlargement, the blades being of such thickness that they would deflect at speeds without the compensation of centrifugal forces. The central boss is formed by hot die forging, the blade portions being finished by cold working. An alloy of aluminium or magnesium is the preferred material. The thickness of the blade at one-tenth the length from the root does not exceed one-fiftyfourth of the length. The boss may be bolted or keyed to the engine shaft direct or may be provided with liner 6 of hard metal keyed by keys 12 to the boss and having keyways 9 and an internal cone 8 for fitting on the coned end of the engine shaft. In a modification, the 'liner has integral fins in place of separate keys which slide in keyways in the boss and when in position are pinned. Specifications 163,714, 199,708, 223,838, and 240,594 are referred to.
GB714526A 1926-03-15 1926-03-15 Improvements in aeronautical propellers Expired GB267313A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB714526A GB267313A (en) 1926-03-15 1926-03-15 Improvements in aeronautical propellers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB714526A GB267313A (en) 1926-03-15 1926-03-15 Improvements in aeronautical propellers

Publications (1)

Publication Number Publication Date
GB267313A true GB267313A (en) 1927-03-17

Family

ID=9827466

Family Applications (1)

Application Number Title Priority Date Filing Date
GB714526A Expired GB267313A (en) 1926-03-15 1926-03-15 Improvements in aeronautical propellers

Country Status (1)

Country Link
GB (1) GB267313A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6393701B1 (en) * 1997-12-19 2002-05-28 Robert Bosch Gmbh Manually operated electric machine tool
CN106081096A (en) * 2016-07-27 2016-11-09 上海未来伙伴机器人有限公司 Paddle device, paddle device manufacture method and multi-rotor aerocraft

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6393701B1 (en) * 1997-12-19 2002-05-28 Robert Bosch Gmbh Manually operated electric machine tool
CN106081096A (en) * 2016-07-27 2016-11-09 上海未来伙伴机器人有限公司 Paddle device, paddle device manufacture method and multi-rotor aerocraft

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