Abstract: An oiler pump comprises a housing defining a cylinder and a chamber, a manually displaceable piston received in the cylinder, a spring in the chamber between the housing and the piston, a first one-way check valve on a first end of the piston, a second one-way check valve on the housing, and a fluid displacement member substantially completely filling the chamber when the piston is in a retracted position and to substantially completely open the chamber when the piston is in the first position. The fluid displacement member is formed by an outer skirt member and an inner guide member formed integrally with the piston member. The fluid displacement member increases the priming height and efficiency of the pump by reducing the volume area in the chamber in the fully compressed state which might accumulate gas to zero.

Abstract: A crimp or press tool is provided that includes two pivotally connected jaw members that can be selectively drawn toward one another in order to crimp or otherwise press a fitting onto a pipe or other workpiece. The tool uses a tightening assembly that enables the application of oppositely directed rotational forces to thereby prevent or at least significantly reduce the potential for imparting undesirable torque moments into the pipe or workpiece.

Abstract: A container for a manually operable oil dispenser for use with metal working machines comprises a bucket providing a reservoir for oil to be dispensed and a pan in the bucket for catching oil and chips dropping thereinto and for returning the oil to the bucket. The bucket has a bottom, a sidewall and an annular upper end, and the pan has an apertured bottom spaced above the bottom of the bucket, a sidewall inwardly of the sidewall of the bucket and an upper end overlying and slidable circumferentially relative to the upper end of the bucket. The bucket and pan have locking members interengaging during relative sliding displacement therebetween to releasably interengage the bucket and pan against separation. The bottom and sidewall of the bucket are contoured to minimize the volume of oil necessary in the reservoir area for continual operation of the dispenser, and the bucket is provided with a bulkhead fitting for attachment to a dispensing pump hose at an angle of 45° to horizontal.