Abstract: A gas pressure operated proportioning pump is provided including axially aligned and spaced opposed end pumping cylinders and an intermediate drive cylinder provided with centrally apertured opposite end cylinder heads. A piston is reciprocal in the drive cylinder and includes oppositely axially projecting diametrically reduced pumping pistons extending and reciprocal through the cylinder heads in sliding sealed engagement therewith and projecting into the adjacent ends of the pumping cylinders. The pumping cylinder adjacent ends include seal structure slidingly and sealingly engaged with the pumping pistons and the remote ends of the pumping cylinders include check valve equipped fluid inlet and outlet ports.

Abstract: A conventional nail clipper construction is provided including a reversible and convertible pivoted lever for displacing a spring-type arm equipped with a first cutting blade portion toward a base plate equipped with a second cutting blade portion. The base plate, however, includes opposite side flanges between which the spring arm is swingable and the opposing surfaces of the spring arm and base plate and the inner sides of the flanges together define a storage area in which nail clippings may be contained when the clipper is not in use. Further, the structure by which the lever is pivotally supported includes coacting portions of the lever and side flanges of the base plate and functions to enable the pivot axis of the lever to be shifted between front and rear limit positions longitudinally of the spring arm and base plate.