摘要:
A fluid dispensing system includes a pump assembly for pressurizing a low cost container, the container non reversibly connected to a coupler module. A wand assembly is releasably connected to the coupler module. A discharge conduit fluidly connects the wand assembly to the container to displace a check valve in the pump assembly to permit flow from the pump assembly. The wand assembly includes a grip body slideable relative to the discharge conduit between a retracted storage position and an extended operable position.
摘要:
A method for draw forming a desired contour to the outer diameter of a tubular work piece provides that the selected work piece have a wall thickness uniform throughout its length. The outer diameter of selected work piece is reduced along essentially only a part of the starting metal blank by drawing the metal blank only partly through a die or only partly through each one of a succession of dies. The resulting drawn reduced diameter will have essentially the same wall thickness as the starting blank. If a thinner wall thickness is desired on the reduced outside diameter, an internal mandrel can be inserted in the starting tube, which will work with the draw die to decrease the resulting wall thickness of the drawn tube to an amount less than the starting tube. The workpiece recovered after the drawing method is useful for producing an automotive fuel tank filler tube or an automotive instrument panel support beam.
摘要:
A method for draw forming a desired contour to the outer diameter of a tubular workpiece provides that the selected workpiece have a wall thickness uniform throughout its length or a combination of uniform thicknesses at end portions with a mid portion of a tapering wall thickness. The outer diameter of selected workpiece is reduced along essentially only a part of the starting tubular metal blank by drawing the metal blank only partly through a contoured die or only partly through each one of a succession of contoured dies.
摘要:
Variable shutter mechanism for a motion picture camera has the main shutter blade mounted on the forward end of the main shutter shaft and driven in fixed phase relation to the intermittent mechanism, and the variable shutter blade journaled coaxially to the rear of the main blade, leaving the forward end of the main shaft available for driving connection to other apparatus. A reflex shutter may be mounted on an oblique axis forward of the main shutter mechanism, the reflex shutter shaft being coupled directly to the main shaft, preferably via a constant speed universal joint.
摘要:
Described are a method an apparatus for pointing long slender workpieces, characterized in that concentric, telescoping dies of successively smaller cross-sectional areas are forced over the end of the workpiece to thereby progressively reduce its crosssectional area in steps. Also described are a method and apparatus for preventing bowing or curving in a point formed by forcing a die over a workpiece to extrude the point.
摘要:
A drill pipe with cold upset ends. The drill pipe includes an elongate tubular portion with a pin joint on one end and a box joint on the other end. Each of the ends of the tubular portion is expanded using a cold upsetting process to provide a transitional portion and a joint receiving portion. The ends of the tubular portion have an inner and outer diameter which is greater than the inner and outer diameter of the tubular portion. The wall thickness of the tubular portion is substantially the same throughout its entire length, including the transitional portions and the joint receiving portions. A drill pipe made in accordance with this invention is durable and less costly to manufacture. A cold upsetting method by which the drill pipe is made utilizes no external heat. An internal mandrel is first inserted hydraulically into the ends of a tubular steel shaft to enlarge the ends. Then, an external “wipe over” die is applied to conform the wall of the ends being expanded to the shape of the internal mandrel. The pipe thus produced has a substantially uniform wall thickness.