GB627829A - Means for attaching the blades of propellers - Google Patents

Means for attaching the blades of propellers

Info

Publication number
GB627829A
GB627829A GB2559645A GB2559645A GB627829A GB 627829 A GB627829 A GB 627829A GB 2559645 A GB2559645 A GB 2559645A GB 2559645 A GB2559645 A GB 2559645A GB 627829 A GB627829 A GB 627829A
Authority
GB
United Kingdom
Prior art keywords
blade
root
axis
threads
notches
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
GB2559645A
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.)
Alcatel SA
Original Assignee
Alcatel SA
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
Priority to FR627829X priority Critical
Application filed by Alcatel SA filed Critical Alcatel SA
Publication of GB627829A publication Critical patent/GB627829A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B7/00Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/18Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements
    • F16B7/182Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements for coaxial connections of two rods or tubes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C11/00Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/02Hub construction
    • B64C11/04Blade mountings

Abstract

627,829. Propeller blades. COMPAGNIE GENERALE D'ELECTRICITE. Oct. 2, 1945, No. 25596. Convention date, Aug. 24, 1939. [Class 114] Helicoidal threads 2 or parallel notches, provided on the root 1 of a propeller blade to secure it to a socket 3 or liner formed correspondingly, have an angular profile comprising a long side of slight inclination to the axis of the blade and forming the active part of the thread or notch and a short side facing the inner end of the root of the blade, this side being more inclined to the axis but lying beyond the perpendicular to the axis passing through the junction of the two sides. The threads or notches in the blade root are disposed on a cone enveloping the paraboloid of equal resistance of fastening of the root of the blade.
GB2559645A 1939-08-24 1945-10-02 Means for attaching the blades of propellers Expired GB627829A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR627829X 1939-08-24

Publications (1)

Publication Number Publication Date
GB627829A true GB627829A (en) 1949-08-17

Family

ID=8989277

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2559645A Expired GB627829A (en) 1939-08-24 1945-10-02 Means for attaching the blades of propellers

Country Status (1)

Country Link
GB (1) GB627829A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012171A (en) * 1974-04-24 1977-03-15 Suvak Michael N Blade and mounting means

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012171A (en) * 1974-04-24 1977-03-15 Suvak Michael N Blade and mounting means

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