GB232343A - Improved construction of propeller, ventilating fan and the like - Google Patents

Improved construction of propeller, ventilating fan and the like

Info

Publication number
GB232343A
GB232343A GB164224A GB164224A GB232343A GB 232343 A GB232343 A GB 232343A GB 164224 A GB164224 A GB 164224A GB 164224 A GB164224 A GB 164224A GB 232343 A GB232343 A GB 232343A
Authority
GB
United Kingdom
Prior art keywords
blades
boss
propeller
ventilating fan
improved construction
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
GB164224A
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.)
FREDERICK WILLIAM SHEARS
JOHN ALEXANDER FISHER
Original Assignee
FREDERICK WILLIAM SHEARS
JOHN ALEXANDER FISHER
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 FREDERICK WILLIAM SHEARS, JOHN ALEXANDER FISHER filed Critical FREDERICK WILLIAM SHEARS
Priority to GB164224A priority Critical patent/GB232343A/en
Publication of GB232343A publication Critical patent/GB232343A/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

Abstract

232,343. Cerfvol, A., Fisher, J. A., Shears, F. W., Lumsden, E., and Raymond, C. Jan. 21, 1924. Screw propellers. - Screw propellers or fans are constructed so that the blades are capable of a slight oscillation in the plane of rotation under variable air pressure during rotation. The blades A, B, Fig. 1, are connected to the boss E bv arms D which are slotted at C to increase their spring or flexibility. The connecting piece instead of being integral with may be separate from and suitably secured to the boss and blade. In another form, the blades A, B, Fig. 7, are pivoted at G to boss arms F and are under the restraint of springs J. Specifications 4788/08, 27237/10 and 17282/13 are referred to.
GB164224A 1924-01-21 1924-01-21 Improved construction of propeller, ventilating fan and the like Expired GB232343A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB164224A GB232343A (en) 1924-01-21 1924-01-21 Improved construction of propeller, ventilating fan and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB164224A GB232343A (en) 1924-01-21 1924-01-21 Improved construction of propeller, ventilating fan and the like

Publications (1)

Publication Number Publication Date
GB232343A true GB232343A (en) 1925-04-21

Family

ID=9725473

Family Applications (1)

Application Number Title Priority Date Filing Date
GB164224A Expired GB232343A (en) 1924-01-21 1924-01-21 Improved construction of propeller, ventilating fan and the like

Country Status (1)

Country Link
GB (1) GB232343A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2612963A (en) * 1947-05-27 1952-10-07 Dorand Rene Spring-biased autogyro rotor blade
US2757745A (en) * 1952-04-21 1956-08-07 Verhage Gerard Frans Variable pitch rotor blade construction
US7719991B2 (en) 2003-01-21 2010-05-18 Qualcomm Incorporated Reverse rate indicator detection

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2612963A (en) * 1947-05-27 1952-10-07 Dorand Rene Spring-biased autogyro rotor blade
US2757745A (en) * 1952-04-21 1956-08-07 Verhage Gerard Frans Variable pitch rotor blade construction
US7719991B2 (en) 2003-01-21 2010-05-18 Qualcomm Incorporated Reverse rate indicator detection

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