GB639904A - Mechanical clutch - Google Patents

Mechanical clutch

Info

Publication number
GB639904A
GB639904A GB2320/48A GB232048A GB639904A GB 639904 A GB639904 A GB 639904A GB 2320/48 A GB2320/48 A GB 2320/48A GB 232048 A GB232048 A GB 232048A GB 639904 A GB639904 A GB 639904A
Authority
GB
United Kingdom
Prior art keywords
pawls
directions
drive
cam
torque
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
GB2320/48A
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.)
Garrett Corp
Original Assignee
Garrett Corp
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 Garrett Corp filed Critical Garrett Corp
Publication of GB639904A publication Critical patent/GB639904A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically

Abstract

639,904. Ratchet clutches. GARRETT CORPORATION. Jan. 26, 1948, No. 2320. Convention date, Nov. 29, 1946. [Class 80 (ii)] A clutch which drives in both directions and releases the driven member automatically for movement in both directions on cessation of drive torque, e.g. to permit emergency manual drive in the event of power failure in actuators for flaps, doors, and undercarriages, on aircraft, comprises a pair of elongate pawls 25 each having friction surfaces at both ends, moved radially in opposite directions into frictional engagement with a surrounding driven drum 19 by a toothed pinion 16 forming the end of a driving shaft engaging rack-teeth on the pawls, or by a cam engaging notches therein, Fig. 4, not shown, As the pawls 25 move outwardly, free rollers 24, engaging recesses in the pawls, cam them apart. increasing the grip, and in the absence of drive-torque, U-shaped wire springs 31 draw the pawls 25 together on the rollers thus retracting them from the driven drum 19. A conical spring, Fig. 1, not shown, presses the pawls axially against a fixed friction-plate carried by the stationary housing 22 to provide drag for initiating engagement.
GB2320/48A 1946-11-29 1948-01-26 Mechanical clutch Expired GB639904A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US639904XA 1946-11-29 1946-11-29

Publications (1)

Publication Number Publication Date
GB639904A true GB639904A (en) 1950-07-05

Family

ID=22052814

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2320/48A Expired GB639904A (en) 1946-11-29 1948-01-26 Mechanical clutch

Country Status (1)

Country Link
GB (1) GB639904A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0293951A1 (en) * 1987-04-27 1988-12-07 Roberto Salin Freewheel clutch
WO1997003303A1 (en) * 1995-07-12 1997-01-30 Itt Automotive Electrical Systems, Inc. Acceleration reaction clutch with override capability

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0293951A1 (en) * 1987-04-27 1988-12-07 Roberto Salin Freewheel clutch
WO1997003303A1 (en) * 1995-07-12 1997-01-30 Itt Automotive Electrical Systems, Inc. Acceleration reaction clutch with override capability

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