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Publication of FR300417ApublicationCriticalpatent/FR300417A/fr
E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
E05F3/02—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with pneumatic piston brakes