Abstract: A clamp with a live loading clamp nut assembly is provided for pipe joints and the like. The nut assembly includes a body member movable within a cage. A plurality of springs, such as spring washers, are employed in the cage to provide a stored spring energy to maintain the clamping pressure in a desired range. The clamping arrangement preferably includes a pair of jaws, hinged together at one end so that the other ends of the jaws are moved toward and away from one another. The nut assembly presses the free ends of the jaws together to maintain a desired tightness in the pipe joint.

Abstract: A vertically storing dock leveler comprises a deck, a pivot coupling the leveler to the mounting pit to allow the deck the rotate from a stored vertical position to an operative horizontal position and a source of power to rotate the deck. A sensor is mounted to the underside of the deck for delivering an output that ceases downward movement of said deck when a foreign object such as a human is sensed under said deck. The sensor comprises a wire mounted to span said deck at a position below it and a switch responsive to movement of said wire. The switch may be a mechanical, proximity or photoelectric type. The wire is fixed at one side of said deck and coupled to a pivoting member at the other side with the pivoting member normally positioned in proximity to said switch. A spring is employed to bias the pivoting member to a centered position relative to the switch in opposition to tension of the wire.

Abstract: An automatic return to dock mechanism for a dockboard having a frame, a deck pivotally mounted to the frame and a lip pivotally mounted to an outboard end of said deck. The lip has an arm mounted to a lower surface. A crank mechanism comprises a pivoting arm member mounted to the frame and a pushrod extending under the deck having one end thereof coupled to said pivoting arm member and a slot member attached to the other end of the push rod. The slot member engages a portion of said arm mounted to the lip. A spring biases the slot member to urge engagement with the arm mounted to the lip. Aa hold down mechanism that permits the deck to raise and lower includes a linkage to the pivoting arm member. As the lip moves from an extended position to a pendant position, the pushrod is moved in one direction by action of the arm engaged in the slot member causing the pivoting arm member to disengage the hold down allowing said deck to raise.

Abstract: A dock leveler has a frame mounted at a dock, a deck pivoted at one end to said frame and a lip pivotally attached to said deck at the other end thereof. The deck is movable between a first operable position where the deck is substantially horizontal and the lip extended, a second operative position where the lip hangs pendant and the deck is declined and an inoperative position where the deck is substantially horizontal and the lip hangs pendant. A barrier is mounted to have a raised operative position protruding above the deck and an inoperative position flush with the deck. A mechanical linkage automatically raises the barrier when the deck is in the inoperative position and permits the barrier to be lowered to its inoperative position when the deck is in either operative position. The linkage is responsive to both movement of the deck and the position of the lip.

Abstract: A dock leveler having a deck-assembly, a first hydraulic cylinder to power said deck assembly to a raised position, lip mounted to said deck assembly, and a second hydraulic cylinder for powering said lip into an extended position. An hydraulic power circuit is coupled to the first and second hydraulic cylinders to control movement of said deck and lip. The hydraulic power circuit includes a pump to deliver fluid under pressure, a first valve operatively coupled to the pump to control fluid flow to the first hydraulic cylinder. A second valve is operatively coupled to the second hydraulic cylinder. An adjustable relief valve is coupled to the second valve to prevent a reduction of fluid pressure to the second hydraulic cylinder after the pump has supplied fluid under pressure through the second valve to extend the lip.

Abstract: This invention is for a process for producing a water-in-oil emulsion and edible margarine-like spread composition having a fat content of less than 80 percent by weight and having the approximate consistency of margarine, the process comprising forming a liquid dispersion of a water phase and a liquid fat phase of a substantially hard fat and a liquid soft fat, followed by cooling of the dispersion and subjecting the cooled dispersion to a shearing force sufficient to produce a water-in-oil emulsion, and discharging the emulsion to provide a product having the approximate consistency of margarine at room temperature.

Abstract: This invention is for a process for producing a water-in-oil emulsion and edible margarine-like spread composition having a fat content of less than 80 percent by weight and having the approximate consistency of margarine, the process comprising forming a liquid dispersion of a water phase and a liquid fat phase of a substantially hard fat and a liquid soft fat, followed by cooling of the dispersion and subjecting the cooled dispersion to a shearing force sufficient to produce a water-in-oil emulsion, and discharging the emulsion to provide a product having the approximate consistency of margarine at room temperature.

Abstract: A circulation air distributing system for supplying fresh conditioned, hot or cold air through the use of cells metal cellular flooring. Distribution box inserts are uniformly distributed along the cellular flooring units prior to concrete placement. Selected distribution box inserts are activated to provide individual control means including diffuser means, for supplying individual workstations with fresh air at the volume, the temperature, and in the direction desired by the occupant. Air movement is from the floor surface upwardly toward the ceiling and into a return plenum space provided above the ceiling structure. In the event of a fire, selected diffuser means may be replaced by mask assembly which provide fresh, breathable air to an individual. Signal means activated on connection of the mask assembly to the control means, alerts the fireman as to the location where rescue is required.

Abstract: A reinforced concrete floor structure having reinforced concrete beams and girders supporting a metal subfloor and a monolithic concrete layer. The metal subfloor comprises alternating first and second flooring units wherein the first flooring units span across a plurality of the beams and thereby enhance the load carrying capacity of the floor structure. In one embodiment, the first flooring units comprise cellular flooring units that provide for the distribution of wiring throughout the floor structure. In alternative embodiments, the first and second flooring units each comprise cellular flooring units or each comprise non-cellular flooring units. The metal subfloor presents openings in the region of the beams and girders so that the monolithic concrete may comprise the concrete of the beams and girders and the layer of concrete covering the metal subfloor.

Abstract: A standing-seam roof system with elevated sub-purlins supported on concealed slip assemblies is provided. A uniform thermal-insulating value of the roof system is maintained by elevating the roof panels substantially above the undeformed depth of the thermal-insulating blanket. Each clip assembly consists of two parts allowing level adjustment after the fastening of the clip assembly.

Abstract: A door assembly and method for making a door assembly that has a front steel skin with a predetermined embossed pattern, a back steel skin that has a substantially textured flush surface and a polystyrene core one side of which has an embossed design substantially identical to the embossed design of the front steel skin and a back surface that is substantially flush. The front and back steel skins have a pressure sensitive hot melt adhesive applied thereto and the center polystyrene core is attached between the front and back steel skins and passed through a series of pinch rollers to apply predetermined pressure to the front and back skins to secure the front and back skins to the polystyrene core. The front and back skins are preheated to a predetermined temperature sufficient to maintain the pressure sensitive hot melt glue in a soft and tacky state.

Abstract: A door assembly and method for making a door assembly that has a front steel skin with a predetermined embossed pattern, a back steel skin that has a substantially textured flush surface and a polystyrene core one side of which has an embossed design substantially identical to the embossed design of the front steel skin and a back surface that is substantially flush. The front and back steel skins have a pressure sensitive hot melt adhesive applied thereto and the center polystyrene core is attached between the front and back steel skins and passed through a series of pinch rollers to apply predetermined pressure to the front and back skins to secure the front and back skins to the polystyrene core. The front and back skins are preheated to a predetermined temperature sufficient to maintain the pressure sensitive hot melt glue in a soft and tacky state.