Abstract: A water envelope pump and tank system configured with the water envelope and pump internal to the tank. The tank has first and second laterally opposed openings, fitted with externally protruding flanges, the openings disposed proximate to the bottom of the tank. A flexible envelope conforming in shape to a portion of the tank is positioned within the tank. The envelope has two openings corresponding to the tank openings located in two extended portions formed for fitting the tank flanges. The tank and envelope openings are sufficiently large to receive and encompass a pump system, comprising a pump and associated tubing, and a pump guard system. A means for sealing the envelope openings with respect to the tank is employed at the tank and envelope openings. A removably mounted motor is disposed outside the tank and communicates with the pump by a drive means passing through the second of the tank openings.

Abstract: A flow meter for measuring the volume of flowing fluid through a conduit is provided with a self-centering rotor assembly that becomes precisely centered within a flow chamber of the flow meter upon assembly of the flow meter construction. Rotor support means may be provided having cam surfaces defined thereon, which cam surfaces have cooperative camming engagement with appropriate surfaces formed on the rotor assembly and are adjusted during assembly of the rotor mechanism to accomplish centering of the rotor mechanism within the housing structure and to establish tight frictional engagement with the inner wall structure of the housing to positively lock the rotor assembly in its centered position within the flow chamber.

Abstract: In one exemplar embodiment, an apparatus for impressing identifying characters into the end face of metal bar stock is disclosed. A stamping apparatus operates in conjunction with conventional bar stock drawing and cutting machines. The stamping apparatus has a die positioning member adapted for pivotal movement carrying a character imprinting die that is extended and locked in the path of the moving bar stock. The force of the bar stock moving against the die imprints the identifying characters in the end face of the bar stock. Just prior to cutting of the bolt blank from the bar stock the cutting machine signals the bolt stamping apparatus and the die positioning member begins to pivot and retract into the apparatus housing thereby relieving the pressure between the end face of the bar stock and the die. The die positioning member continues to pivot into the housing as the cutting machine cuts the bolt blank from the bar stock and allows the bolt blank to fall free for collection.