Abstract:
A jaw clutch comprising two clutch members and a bushing with jaws at both ends, engaging each of said clutch members, one of which clutch members is mounted on the shaft with a provision for moving along the shaft axis and is constantly pressed by a resilient element against the jaw bushing so that the total axial clearance between the jaws of the bushing and those of the clutch members is smaller than the height of each clutch member jaw at the side of the resilient element. In addition, each jaw of the clutch member at the side of the resilient element has a straight portion and a portion beveled towards the face end.
Abstract:
Clutch means are disclosed comprising a friction clutch in parallel with a positive-drive dental clutch assembly. The friction clutch is first engaged to bring the driven member up to the speed, or almost to the speed, of the driving member. The dental clutch is then engaged to provide a positive drive. The dental clutch assembly includes a sliding helical gear element for automatically aligning the teeth of the dental clutch prior to engagement. Brake means are provided for braking the rotational speed of the slidable clutch element.
Abstract:
A pneumatic brake and clutch has driving and driven members rotatably mounted in a housing which is fluid tight. A friction plate is positioned opposite the driving member and connected by way of a bellows to the driven member. The plate is normally biased by the bellows into frictional engagement with the driving member so that when the driving member is rotated, the driven member rotates also. Fluid under pressure may be introduced into the housing exteriorly of the bellows which compresses the bellows and pulls the friction plate away from the driving member so the torque is no longer coupled to the driven member. At the same time, the plate may also be pulled into engagement with a friction surface on the housing which brakes the plate and driven member to a stop.