device for the braking of a rotating cylinder, for example of a drum in a machine for preparing the spinning, for example, open up, cleaning machine, carda or carda for wool

摘要

in a device for the braking of a rotating cylinder, for example of a drum in a machine for preparing the spinning, for example, open up, cleaning machine, carda or carda for woolin a braking system of the treatment cylinder electrically.to create a braking system that allows a reduction in the time of deceleration of the brake cylinder, with adaptation to the conditions of brakingand that is free from wear and maintenance, as the drive motor for the cylinder is used, a motor asynchronous, the coiling of statore, through a switching device.it is in connection with a source of alternating current and a device for the generation of dcthe switching device by switching the source of alternating current to the device for the generation of dc or vice versa.