Abstract: A receptacle is provided for receiving a paint roller therein. An elongated horizontal roller support structure is journalled within the receptacle for rotation about a horizontal axis extending longitudinally of the roller support structure. The roller support structure is adapted to have a paint roller lengthwise telescoped thereover for support therefrom and rotation therewith. An elongated horizontal water discharge manifold is supported within the housing in laterally spaced relation relative to the roller support structure and for adjustable angular displacement about the longitudinal axis of the manifold. The manifold includes water outlet jet discharge structure spaced therealong and opening outwardly from one side of the manifold toward the roller support structure. The manifold includes water inlet structure for supplying water under pressure to the interior of the manifold and structure is provided on the exterior of the receptacle for adjustably angularly displacing the manifold.

Abstract: The present invention relates to a spraying unit for unhardened concrete and the like, which is provided with an apparatus capable of mixing a constant quantity of quick-set additive, for example, into unhardened concrete to be sprayed.The apparatus capable of mixing the constant quantity of quick-set additive into unhardened concrete and the like is adapted to usually carry and supply the constant volumetric weight and quantity of quick-set additive outside a quick-set additive container regardless of the amount of the quick-set additive stored inside the container.

Abstract: A cleaning unit for cleaning mechanical parts and the like with a volatile solvent. The unit comprises a vertically moveable holder for the parts and a lower unit portion including apparatus for washing the parts. An upper unit portion is provided which includes apparatus for drying the parts by cooling. A unit portion is provided which includes apparatus for rinsing the parts. A cover is also provided which is connected to the holder such that when the holder is temporarily immobilized in either the lower unit portion or the unit portion including the rinsing apparatus the cover locks a passage extending between the portion and the portion directly thereabove in a non-sealing relationship.

Abstract: A selectively adjustable buoyancy float for a pool cleaner is provided in order to suspend the cleaner below the upper surface of the water such that the pool cleaner can operate without being impeded by a pool cover.

Abstract: A dishwashing apparatus is provided with a float controlled liquid inlet valve. The float includes a centrally located, downwardly extending, stem portion which extends through the inner aperture of a standpipe associated with the bottom wall of the liquid container. A cap portion of the float surrounds and encloses the upper extremity of the standpipe and prevents spraying liquid from escaping the liquid container through the standpipe aperture. A floatation chamber is axially spaced below the cap portion of the float and is connected thereto by a plurality of arms. The spacing of the float chamber from the cap defines openings which allow liquid to wash through the inner section of the float and around the standpipe to remove debris.

Abstract: This disclosure relates to apparatus for washing trays and/or buggies, and includes a housing having means therein for conveying buggies from an entrance opening to an exit opening through respective washing and rinse zones beneath which are respective wash water and rinse water collecting reservoirs, a plurality of nozzles in the washing zone disposed in an inverted generally U-shaped configuration for directing high pressure streams of wash water downwardly and across the washing zone, a plurality of nozzles disposed at an upper area of the rinse zone for directing rinse water generally downwardly through the rinse zone, and means responsive to detecting means for detecting the level of collected wash water and rinse water in the respective washing and rinse reservoirs for adding make-up water to the washing and rinse nozzles.

Abstract: A chemically sanitizing rinse solution is prepared in batches of variable sizes, but with a preselected substantially constant proportion of water and chemical sanitizing agent, in a rinse solution mixing tank, for demand consumption on a continuous duty basis, by delivering the sanitizing agent to, and by admitting fresh water into, the mixing tank in response to predetermined level changes of the solution therein.

Abstract: A cleaning device for swimming pools comprising a specially shaped propelling head attached at the end of a flexible hose supplied by water under pressure. Water ejected rearwardly through ports surrounding the attachment of the head to the hose drives the head forward. The whipping action of the hose encouraged by jets spaced along the length of the hose produces a random trajectory over the entire bottom of the pool so that effective agitation and cleaning is achieved over the total pool area.

Abstract: A wire rod steeping apparatus has at least one elongated tank, a rotary shaft extending along one side of the tank, and a drive motor and reduction gear connected to the shaft for driving the rotary shaft in opposite rotational directions. A plurality of chain wheels are spaced along the length of the shaft, and chains having their one ends connected to and extending from the wheels droop into the tank and have the other ends connected to the opposite side of the tank from the side along which the shaft extends. A plurality of slanting frames are positioned in the tank spaced at intervals therealong and have slanting members slanting upwardly from the side of the tank along which the shaft extends to the opposite side of the tank, the chains drooping below the slanting members when the chains are fully extended.

Abstract: An electro-hydraulic actuator is disclosed, particularly for use with control surfaces in aircraft. The actuator includes a regulating piston and cylinders an rapidly-operable switching valves for the positioning of the piston in the cylinder that are operated by the supplying of discrete volumes of operating fluid thereto. Switching pulses are applied to the valves by a computer, and a sensor that is responsive to each activation of the switching valves applies an answering pulse to the computer wherein a valve breakdown can immediately be recognized. The sensor may be responsive to changes in pressure and/or flow between the valves and the cylinder located at the valve body.

Abstract: An apparatus for cleaning an endoscope includes a return system for returning used sterilizer a from a drain port of a rinse basin to the reservoir vessel containing the liquid sterilizer medium, via a return tube, which may contain an electromagnetic valve. The apparatus also includes a drain tube for discharging waste liquid through the drain port; the drain tube may include an electromagnetic valve. In this manner, a liquid sterilizer which is discharged from the drain port of the rinse basin may be returned to the reservoir vessel through the return tube, permitting its repeated use as long as the liquid sterilizer remains effective.

Abstract: Washing apparatus for washing insulated trays includes an endless conveyor below the elevation of first and second guide rails which guide the trays in an upright disposition as they are being washed. The conveyor includes generally V-shaped tray supports at spaced points therealong so that each tray is supported by two adjacent tray supports. Vertically disposed manifolds have spraying nozzles for spraying water generally horizontally at opposite major faces of the trays.

Abstract: A liquid collection pan in the wash compartment below the opening thereinto from the prewash compartment has a shielded slot directed toward the opening which captures and returns liquid entering the wash compartment from the prewash compartment.

Abstract: An upstanding generally rectangular enclosure is received upon a wheeled base via which it can be readily moved to any desired location and position in any desired orientation. A wall of the enclosure is hinged at its bottom edge forming a door that may be swung downwardly and outwardly to rest on a ground plane. Pedestal means hold the door canted to the horizontal. The door includes a foldable extension which forms a ramp to the ground plane. A second ramp extends from the door outer end inwardly onto the door. Peripheral edge walls form a shallow pan on the door. A pipe frame holds flexible wall members about the sides and back. The interior of the enclosure includes a tank of a cleaning liquid (e.g., water), a heater, a pump connected to the tank and a length of hose with nozzle via which heated cleaning liquid is emitted. A further pump communicates with the door pan for pumping fluids therein through a filtering system and into a storage tank within the enclosure.

Abstract: An extruder has a housing extending along an axis and formed with a downstream bore portion centered on the axis and upstream from this portion with a radially open recess having flat axially extending sides. An insert of generally square section is snugly receivable in this recess with its sides flatly engaging the sides of the recess. This insert is formed with a throughgoing passage forming an upstream bore portion and with a radially extending inlet open into this passage. The insert may be formed with axially extending and radially inwardly open grooves. This insert has at its ends centering formations and is releasably clamped within the housing so that a worm can extend axially through both of the bore portions which are coaxial when the insert is clamped in place. The insert is formed with a network of internal passages through which a coolant may be circulated.

Abstract: An apparatus for cleaning an endoscope comprises an upper spray head which is disposed toward the central axis of a rinse vessel, and a lower spray head disposed toward the wall of the rinse vessel. A portion of an endoscope is disposed around the central axis of the rinse vessel, and the spray heads direct a cleaning liquid toward the endoscope portion from above and below in an oblique direction while rotating about the central axis. The spray heads do not have to be removed to place or remove an endoscope portion to be cleaned.

Abstract: A control system for operating a double-acting hydraulic ram or motor, including a proportional meter-out type directional-control valve which meters the flow of fluid out of the load and, in association therewith, a combined flow and pressure-control valve in the return line from the load. The flow and pressure-control valve is responsive to the pressure drop across the meter-out orifice of the directional-control valve such that return-line flow is restricted at high pressure drops and the supply pressure to the load is increased at low pressure drops, whereby a substantially constant pressure drop across the meter-out orifice is maintained irrespective of the size or direction of the load.

Abstract: A method for the continuous manufacture of explosive mixtures by mixing their components in screw mixers with at least one charging aperture. Proportioned amounts of the components of the mixture are brought into entry zones provided with screw elements and situated below the charging aperture. The mixture components are then advanced through alternation kneading zones and transport zones having screw elements to the output end. The transport and kneading zones are configured such that the shear gradient therein is between 20/sec and 1500/sec and the maximum pressure in the stream of the mass is not more than 100 bars.

Abstract: A manually operable position lock for a hydraulic actuator (10) adding a cylinder (20) and a piston rod (22) with a stop finger (61) for actuating a push rod (60) to close a valve (32) and prevent fluid egress from the cylinder. The lock includes a pivot bracket (110) carried by a push rod, a control lever (111) pivoted to the pivot bracket, a link (114) pivoted to the control lever and slidably receiving the push rod, and a helical spring (120) carried by the push rod and engaging one end of the link.

Abstract: An upper spray arm is mounted to the underside of the upper dish rack of a dishwasher and rotates in response to a jet of water supplied through the lower spray arm. The upper spray arm mounting is provided with a self-aligning bearing which includes a stationary mounting platform attached to the upper dish rack and a flanged, cylindrical bearing connected to the spray arm. An enlarged bore in the mounting platform accommodates the bearing cylinder and permits radial movement of the bearing cylinder relative to the platform. The bearing flange transmits thrust forces to the stationary platform and slides radially relative to the platform to the extent the platform bore is larger than the bearing cylinder. Impetus for radial movement of the bearing and spray arm is produced by a bell shaped receiver located on the underside of the spray arm.