Abstract: Overload release clutch with input and output rotational members and with several springs forcing an interconnecting member into limited torsional connection between the rotational members. A torsion release arrangement for the interconnecting member whereby more than a point contact exists for applying the release force, and with a restrainer for selectively holding the rotational member in non-driving relation upon release action.

Abstract: A clutch control for a rotation and reciprocation transmission, such as that used in garment knitting machine. A shaft is alternately driven in a rotating and in a reciprocating mode, and there are two drive members flanking a clutch which shifts back and forth. A clutch shifter gate is utilized for synchronizing the engagement of the clutch with the drive members.

Abstract: A rotary drive device for transmitting power and which includes two parts that rotate together. When a predetermined torque is encountered, two parts move slightly relative to one another and immediately cause actuation of switch means which in turn actuates a light, an alarm, or other means to cut off power or otherwise stop the device, until overload conditions are overcome. The relative rotation between the two parts of the device occurs quickly and with a snap action so that upon reaching an overload torque condition, a signal is immediately given without delay and without "hunting" of the device or other hesitation. The device furthermore has spring means for loading an axially shiftable switching plate and which springs and plate are also used to transmit axial force on a ball and detent means between the two parts. The device utilizes the same spring means for resiliently loading the switch plate and for setting the maximum driving torque.

Abstract: A torque limiting device such as an overload release clutch which releases completely when an overload condition is reached. Torque transmitting means in the form of a plurality of balls shiftably mounted in detents are spring loaded to the driving position, thus providing a torque sensitive drive connection between the input and output members. The clutch also includes means for insuring complete torque release between the input and output members as soon as the predetermined torque load is reached, and complete torque release is maintained until the clutch is manually re-engaged.

Abstract: A spring-applied, electromagnetically-released brake for electric motors of the type wherein a disc that rotates with the shaft of the motor is gripped between non-rotating jaws, and wherein the grip exerted by the jaws is released by relative rotation between an inclined cam track and a cam follower riding thereon produced by energization of the electromagnet.