Abstract: A high pressure hose coupling having a body portion including a cylindrical cavity for acceptance of a piston and means for attachment of an outer ferrule having a conical interior surface; a free sliding inner nipple which carries on its outer periphery an annular piston operative within said cylindrical body cavity; a plurality of wedges; a wedge driving means operating to produce uniform movement of said nipple and wedges into said conical ferrule.

Abstract: A boat or ship anchor having a crown portion with a spaced apart pair of flukes projecting forwardly therefrom in the same plane, and a pair of tail plates extending rearwardly therefrom, the tail plates being splayed to present a large frontal area. Intermediate the flukes and extending through the crown is an aperture. A shank element, adapted for attachment to the anchor line at its forward end, extends through the aperture and is dimensioned for sliding relation in the aperture intermediate the flukes. A projection in the form of a minor fluke on the tail end of the shank element limits the sliding motion of the shank through the aperture in a first direction while permitting limited rotational or angular movement thereof relative to the flukes and crown at least in a plane perpendicular to the plane of the flukes.

Abstract: A variable pitch marine propeller having a plurality of circumferentially spaced apart blades mounted on axles at the root portion of the blades in a hub to permit independent movement of each of the blades about an axis of rotation substantially parallel to the axis of the hub between a first nested position adjacent the hub and a second extended position. Each of the blades includes leading and trailing striking surfaces or root segments on the root portion of the blades which are hub engageable upon initial rotation of the blade in either direction. Intermediate the leading and trailing segments of the blades are positioned cushioning means which may be mounted in either the hub or the blade root segments for inhibiting the shock of engagement of the blades and the hub upon initial start up of rotation of the hub or upon a sudden reversal of rotation of the hub.

Abstract: A fluid pressure amplifier for intensifying fluid pressure, the amplifier comprising a housing including a hydraulic fluid reservoir therein. A first chamber includes a slave piston mounted for reciprocation therein and for abutting engagement with a workpiece. A hydraulic fluid path extends intermediate the reservoir and the first chamber and a second chamber lies in the path intermediate the first chamber and the reservoir and includes check means intermediate the first and second chambers. A third chamber includes a fluid intensifier piston having a head end and a tail end, the head end being mounted for reciprocation in the third chamber and the tail end being mounted for reciprocation in the second chamber, the head end of the piston having a larger diameter than the tail end. Gas admittance means admit a pressurized gas to a gas path which lies intermediate the gas admittance means and the reservoir.

Abstract: A wheel stand for supporting a wheel rim, the stand comprising a base having a hub connected thereto and spaced inwardly and axially from the plane of the base. A plurality of pivots are connected to and spaced about the base and a shaft is mounted in the hub for rotation therein, the shaft including a projecting threaded portion with an actuator nut mounted on the projecting threaded portion for axial reciprocation along the shaft upon rotation thereof. A plurality of rim supports are each connected to a pivot for rotation in a plane perpendicular to the plane of the base, the hub including a plurality of radially projecting arms which are rigidly connected to the nut. A cam is mounted on each of the arms associated with the nut and a cam follower means is mounted on each of the rim support means, each cam and cam follower being coupled in cooperative relationship whereby axial reciprocation of the nut effects rotation of the rim supports about the pivots.

Abstract: A fluid pressure amplifier for intensifying fluid pressure, the amplifier comprising a housing including a gas-hydraulic interface piston; a first chamber includes a slave piston mounted for reciprocation therein and for abutting engagement with a work piece. A hydraulic fluid path extends intermediate the interface piston and the first chamber so as to apply hydraulic pressure thereto. A second chamber is disposed in the path intermediate the first chamber and the interface piston and includes a check valve in the path intermediate the second chamber and the first chamber. A third chamber, includes a fluid intensifier piston having a head end and a tail end, the head end being mounted for reciprocation in the third chamber and the tail end being mounted for reciprocation in the second chamber. The head end of the intensifier piston has a larger diameter than the tail end and is exposed to gas pressure while the tail end is exposed, in the second chamber, to hydraulic pressure.

Abstract: A tool for removing a tire from an annular rim, the rim having an upstanding circumferentially extending flange and having a substantially closed web with a central aperture therein, the tool comprising a barrel having a radially extending bracket thereon. A rod having a first portion which extends through the barrel is adjustable axially of the barrel, the rod including a second portion which extends substantially perpendicular to the first portion. The second portion of the rod has a length sufficient to overlie the central aperture of the web of the rim. A shoe member is slidably disposed on the second portion of the rod and adapted to embrace the web of the rim on one side thereof with the second portion of the rod on the opposite side thereof adjacent the periphery of the aperture. Locking means are disposed for clamping the first portion of the rod in a predetermined axial position in the barrel.