Abstract: In a power driven roller conveyor having a plurality of rollers mounted on a driven shaft for supporting and transporting a work piece with a limiting drive force. The drive shaft is provided with concentrically disposed spacers, rollers, and bearings which are compressed between an end driving sprocket and an adjustable spring pressure plate on an opposite end and wherein adjustment of the axial compressor force produced by the end mounted spring pressure plate serves to vary the release torque of the individual rollers mounted on the shaft.

Abstract: A spring loaded guard is provided to limit access to a potential nip point formed between the rotating nut driver and its guide and wherein the guard extends beyond the guide housing a sufficient distance to engage the tubing for displacement of the guard for use in restricted access areas.

Abstract: An abrasive waterjet cutting system is monitored and controlled by measuring at least one process parameter and using that measurement as a comparison with a running average of the process parameter as it may change over time. Optionally, the rate of change of the process parameter may also be used to signal an emergency condition, and extreme outer limits of the process parameter may be used to define unacceptable operating conditions.

Abstract: A check valve cartridge for a fluid pump, the check valve cartridge including: a valve seat; a flap valve member seated on the valve seat, the flap member having a first portion movable toward and away from the valve seat; a bumper seated on the flap member, said bumper member for biasing the first portion of the flap valve member toward the valve seat. The check valve cartridge also including a stop member located on the bumper, between the stop member and the flap member; and fastening means for joining the base, flap member, bumper, and stop member to form the integral valve cartridge. The check valve cartridge is seated in a recess formed in the pump housing and is located between the pump housing and a flow manifold.

Abstract: A pneumatically operated balancing hoist includes a housing forming a gas chamber, an inlet for communicating with the gas chamber, a sliding piston, and a rotatable longitudinally movable cable drum. The rotatable longitudinally movable cable drum contains one or more longitudinal openings which slidably accommodate drive rods. The drive rods impart the rotation of the cable drum to a flywheel. Exterior to the flywheel are rotating brake shoes which contact a stationary braking surface when the rotation of the longitudinally movable cable drum exceeds a predetermined angular acceleration. A conically shaped brake system attached to the flywheel is mechanically engaged to prevent rotation of the cable drum until pressurized gas is supplied to the chamber.

Abstract: A fluid pump with an improved manifold including a pump housing; an inlet manifold flow connected to the pump housing, the inlet manifold including an inlet manifold body, having a first end, a second end and an inlet manifold flow opening between the ends; and a discharge manifold flow connected to the pump housing at a location away from the inlet manifold, the discharge manifold including a discharge manifold body having a first end and a second end and a discharge manifold flow opening located between the ends, the discharge and inlet manifold flow openings each including a threaded portion and a flange for making either a threaded connection or flange connection with a flow conduit.

Abstract: A waterjet orifice assembly is provided with a retaining hat which assembles over a head portion of a nozzle mount to capture a nozzle jewel between the mount and retaining hat so that when assembled in a nozzle assembly between a nozzle tube and a capture nut the nozzle jewel becomes securely held and centrally aligned within the assembly.

Abstract: A vacuum impregnated porous cylinder is utilized in a vane type air motor to provide a continuous source of lubrication for the vane tips rotating within the cylinder thereby eliminating the need for lubricant dispersion in the air supply.

Abstract: A separable nozzle body is provided in a quick change assembly including a feed tube handle making change possible without the use of tools, the separable nozzle body having included and aligned therein all the nozzle wear components.

Abstract: The combination of a cylindrical rotary distribution valve which is supplied pressure fluid alternately at either end to sequentially supply and exhaust pressure fluid such as compressed air radially to a selectively reversible hoist motor and a directional spool valve disposed in parallel valve body bores and interconnected with the rotary distribution by short direction passageways provide a compact one body valve electing efficient air distribution and exhaust.

Abstract: An intensifier cleaning probe is provided which compresses the cleaning fluid and delivers it through a central reciprocating cylinder rod which also serves to advance an attached cleaning rod with an engine oil passage or the like.

Abstract: A muffler utilizing a stackable porous disk sandwiched between a threaded mounting plate and an end cap and utilizing tie rods to assemble the stack is provided.

Abstract: A laminated noise attenuation panel for both sound absorption and sound transmission loss having as its principal layers an expanded thermoplastic core with alternately inverted cavities, half opening to each side of said core and a sheet of cured resinous material having hollow microspheres with substantially reduced atmospheric pressure randomly dispersed in said resinous material, said cured resinous sheet facing away from the noise source. The cavities of said core panel facing away from said noise source may be filled with cellulose. The side of said core panel toward the noise source may include a laminated layer of a perforated material and a decorative layer. The side of said panel away from the noise source may also include a layer of other materials and a decorative layer. Data for the noise attenuation properties of various combinations of laminations are presented.

Abstract: A mechanical system for speed adjustment, comprising mechanical driving means and a driven shaft member, with linking means between the driving source and the drive shaft member for driving the latter, the system further comprises a crank element comprising an eccentric disc disposed on the driven shaft member and a connecting rod driven by the eccentric disc, the connecting rod comprising an arm portion that rides the eccentric disc. Also included are means for adjusting the eccentricity of the eccentric disc with respect to the driven shaft, which adjusting means comprises a spacing element movable into and from a position between the crank element and the driven shaft, the system also contains an output shaft element driven by the connecting rod.

Abstract: An intelligence display apparatus comprising:(a) an envelope comprising a substantially transparent faceplate:(b) illumination means for directing light toward said faceplate:(c) an intelligence selection element disposed between said faceplate and said illumination means, said selection element comprising first regions substantially transparent to said light and second regions substantially opaque thereto, said first and second regions having respective widths in the ratio of about 6:7 to about 8:9;(d) an intelligence storage element comprising a plurality of discrete and different sets of intelligence, said storage element being disposed between said selection element and said illumination means, said sets individually comprising a plurality of bits respectively embodying different portions of said intelligence, such that said bits of each set collectively comprises a composite of the intelligence of said set, each one being totally opaque, totally transparent, partially opaque and partially transparent to

Abstract: An electrophotographic diffractometer apparatus, comprising a photoconductive storage member, means for uniformly charging said storage member, means for holding a diffraction specimen, means for directing a collimated beam of electromagnetic radiation to said specimen, whereby diffracted rays of said beam are directed to said charge storage member and produce discharged local areas thereon in accordance with the diffraction characteristics of said specimen, and scanning means for electrically measuring the charge pattern at said storage member.

Abstract: A monolithic electroluminescent semiconductor device comprising a monocrystalline semiconductor body having a major surface; a semiconductor zone which extends along a part of said major surface of said semiconductor body, said zone adjoining a portion of the semiconductor body and forming therewith a diode that can emit radiation, said diode having a junction which extends to at least said surface of said semiconductor body; a current path element disposed at said major surface and connected electrically in parallel with said junction, said current path element being physically separate from said semiconductor zone and said semiconductor body portion and leaving said junction at least partly intact at said surface, whereby the current voltage characteristics of said current path and of said diode intersect each other and the dynamic admittance of said current path at the intersection is smaller than that of said diode.

Abstract: The invention relates to a photodiode having a semiconductor body comprising regions of opposite conductivity types which are separated by a p-n junction and of which at least one region has an anti-reflective layer.The anti-reflective layer consists of tin-doped indium oxide and forms an ohmic connection with the one region.

Abstract: An arrangement is discussed for producing free atoms of a substance for atomic spectroscopy purposes comprising an oven and an oven element, which contains the substance to be examined, which oven is surrounded by cooling means which, during the spectroscopic measurements, cool the oven wall and which must have a temperature of at least 30.degree. C.