GB499223A - Gear for varying the pitch of the blades of variable pitch screws - Google Patents

Gear for varying the pitch of the blades of variable pitch screws

Info

Publication number
GB499223A
GB499223A GB21116/37A GB2111637A GB499223A GB 499223 A GB499223 A GB 499223A GB 21116/37 A GB21116/37 A GB 21116/37A GB 2111637 A GB2111637 A GB 2111637A GB 499223 A GB499223 A GB 499223A
Authority
GB
United Kingdom
Prior art keywords
teeth
pinion
gear
pitch
double
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
GB21116/37A
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.)
Vereinigte Deutsche Metallwerke AG
Ver Deutsche Metallwerke AG
Original Assignee
Vereinigte Deutsche Metallwerke AG
Ver Deutsche Metallwerke AG
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 Vereinigte Deutsche Metallwerke AG, Ver Deutsche Metallwerke AG filed Critical Vereinigte Deutsche Metallwerke AG
Publication of GB499223A publication Critical patent/GB499223A/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
    • B64C11/30—Blade pitch-changing mechanisms
    • B64C11/32—Blade pitch-changing mechanisms mechanical
    • B64C11/36—Blade pitch-changing mechanisms mechanical non-automatic

Abstract

499,223. Screw propellers; toothed gearing. VEREINIGTE DEUTSCHE METALLWERKE AKT.-GES. July 30, 1937, No. 21116. Convention date, Aug. 12, 1936. [Class 114] [Also in Group XXIV] In gear for varying the pitch of screw propeller blades of the kind comprising double return epicyclic gear each double planet wheel is formed as one wheel with wide continuous teeth, while one or both of the central wheels engaging therewith is or are provided with corrected teeth, i.e. although having the same diameter they have a different number of teeth. A pinion 1<1> forms the final drive through bevelled wheels with the propeller blades, whilst another similar pinion 1<1> is secured upon the propeller shaft. Between these two is a double train of epicyclics carried by two cages of which one is fixed and the other is adjustable. The planet pinions 2<1> are broad and mesh with the pinion 1<1> and an intermediate pinion 4<1>. Although the pinions 1<1> and 4 are of the same diameter, they have a slightly different number of teeth whereby an overall large gear reduction is obtained.
GB21116/37A 1936-08-12 1937-07-30 Gear for varying the pitch of the blades of variable pitch screws Expired GB499223A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE499223X 1936-08-12

Publications (1)

Publication Number Publication Date
GB499223A true GB499223A (en) 1939-01-20

Family

ID=6545425

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21116/37A Expired GB499223A (en) 1936-08-12 1937-07-30 Gear for varying the pitch of the blades of variable pitch screws

Country Status (1)

Country Link
GB (1) GB499223A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423400A (en) * 1941-06-06 1947-07-01 Harry J Nichols Propeller
US2432550A (en) * 1940-04-06 1947-12-16 Waseige Charles Raymond Screw propeller pitch adjusting device
US2577603A (en) * 1946-09-24 1951-12-04 Curtiss Wright Corp Propeller pitch change mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432550A (en) * 1940-04-06 1947-12-16 Waseige Charles Raymond Screw propeller pitch adjusting device
US2423400A (en) * 1941-06-06 1947-07-01 Harry J Nichols Propeller
US2577603A (en) * 1946-09-24 1951-12-04 Curtiss Wright Corp Propeller pitch change mechanism

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