Abstract: A cam journal for attaching a camshaft to a cylinder head includes an upper portion and a lower portion. The upper portion and lower portion of the cam journal have a generally semi-circular bearing surfaces, chamfer regions, and circumferential beveled edges. The lower portions also include oil holes. The cam journal is removably attached to a cylinder head by first connecting multiple cam journal lower portions to the cylinder head, then positioning a camshaft on those lower portions. Upper portions are placed over the camshaft and are connected to the lower portions. A fastener is used to securely connect the cam journal to the cylinder head.

Abstract: A hub assembly (10) includes a hub (12) which can be attached to the mast (11) of an antenna by fastening assemblies (41) at a selected position along the mast (11). The hub (12) can carry rods (46) in horizontal slots (39, 40) to form a capacitance hat for the antenna, or can carry rods (46) in vertical slots (37, 38) so that the rods (46) can be positioned to overlie a trap (51) by a selected extent to tune the trap (51) a selected amount. Clamping assemblies (47) hold the rods (46) in the selected slots (37-40). Apertures (36) are provided in the hub (12) and are adapted to receive guy wires to support the antenna.

Abstract: A piston ring grinding device (10) includes a base portion (12) which is provided with spaced collars (21, 22) which receive an axle (28). A grinding wheel (26) having an abrasive surface (27) is carried by the axle (28), and a handle assembly (30) is provided for rotation of the axle (28) and the grinding wheel (26). The axle (28) may be received in either the first collar (21) or the second collar (22) for selective right hand or left hand operation of the device (10). An adjustable locator (60) is Y-shaped having an elongate body (62) with a channel (70) therein and branches (64, 65) which provide contact points (68, 69) for the piston ring (R). Once the piston ring (R) is engaging the contact points (68, 69), and thereby properly positioned on the base portion (12), a thumbscrew (73) may be tightened to attach the locators (60) to the base portion (12), and the ends of the piston ring (R) are ready to be ground.