Abstract: A portable crimping apparatus suitable for crimping hose fittings on high capacity hoses having four to six layers of braided wire reinforcement utilizes a relatively light weight pusher which has openings therethrough to illuminate the crimping operation. The pusher is mounted on a plate attached to a ram of a hydraulic cylinder, which ram is used to advance the pusher. The pusher is retained in position on the plate by thumb operated spring latch. A pair of lifting arms are pivoted to a support for the ram to facilitate carrying the portable crimper apparatus.

Abstract: In a coil winding machine, a unitary winding head is replaced by a winding head having a bobbin removably mounted on a mandrel. The bobbin has a cavity which receives a projecting portion of the mandrel in order to mount the bobbin on the mandrel. The bobbin is held in fixed relation on the mandrel with a plurality of screws which pass through holes through a hub at a first end of the bobbin and thread into axial bores in projecting portion of the mandrel. A plurality of segments separated by slots extend from the hub, each having a second end face which is convex at a slight angle and is aligned with a shoulder on the mandrel having a concave end face so as to urge the segments into engagement with the projecting portion of the mandrel as the screws are tightened in the axial bores in the mandrel.