Abstract: The preferred embodiment of the invention disclosed herein includes a first sleeve member having a slightly enlarged diameter portion at one end thereof and a second sleeve member having one end telescopically received within the enlarged diameter portion such that said first and second sleeve members are movable between expanded and contracted positions. Also included is a third sleeve member fixed to the outer surface of the second sleeve member and extending axially about the enlarged diameter portion and a portion of the smaller diameter portion of the first sleeve member. The third sleeve member is radially spaced from the first sleeve member forming a pressure chamber which communicates with the interior of said sleeve members through ports formed in the enlarged diameter portion. Thus, fluid pressure acts in the pressure chamber to counteract separation forces in an associated pipeline.

Abstract: A foundation for pre-engineered buildings in accordance with a preferred embodiment of the invention disclosed herein includes concrete footings provided at spaced-apart locations along the perimeter of the building to be erected. Light weight precast reinforced concrete grade beams are set in place with the end of each beam bearing on adjacent footings. Adjacent ends of grade beams extending in a straight line relative to each other are formed with channel configurations forming a keyway and adjacent ends of grade beams extending at a right angle to each other are formed with an interlocking configuration. One of these latter grade beams is formed with a keyway adjacent its interlocking configuration and its associated footing. A light weight disposable form is secured to the top of each footing and is generally U-shaped in plan view including a pair of parallel side walls and a connecting wall.

Abstract: A damper assembly for conserving fuel consumption in a heating furnace comprises baffle means pivotally mounted in support means arranged to fit in an outlet flue communicating between the furnace and a chimney stack so that the baffle means is movable between a fully open position whereby the flow of combustion gases from the furnace to the stack is substantially unimpeded and a fully closed position providing a restricted flow path for the gases whereby the gas flow to the stack is reduced. Associated wth the baffle means is thermostatic control means responsive to the temperature of the combustion gases for moving the baffle means to the fully open position at a relatively low temperature indicating that the furnace is inoperative and for moving the baffle means to the fully closed position at a relatively high temperature indicating that the furnace is operative.

Abstract: The preferred embodiment of the invention disclosed in this application includes a building module having at least one compartment therein in which is contained a toilet system for bacteriologically breaking down solid waste and paper to provide a relatively pure liquid effluent. The toilet communicates with a flush tank into which the effluent is discharged and which communicates with a pump for pumping the effluent to an evaporator for removing excess effluent from the toilet system. Preferably the evaporator utilizes the effluent as a heat exchange medium for heating or cooling air discharged to each toilet compartment which air is circulated back to the atmosphere through a vent opening to help remove odors from the compartment. The evaporator may be arranged to aerate the effluent which is then discharged back to the flush tank so that it can be used to flush the toilet and enhance the biological breakdown of waste.

Abstract: The preferred embodiment of the invention disclosed herein includes a main check valve movable between a fully closed and fully open position in response to the flow requirements from a pressure source to a demand system and including an intermediate position wherein the flow to the demand system corresponds to a predetermined minimum flow from the pressure source. Also included is a bypass valve for controlling the flow from the pressure source to a recirculation system. In the fully closed position of the main check valve, the bypass valve is in a fully open position whereby a predetermined minimum flow from the pressure source is maintained; in the intermediate position of the main check valve, the bypass valve is closed and remains closed between the intermediate position of the main check valve and its fully open position.

Abstract: The preferred embodiments of the invention disclosed herein comprise a first or main control valve means and a second valve means including a pressure reducing valve arrangement both controlled by the same actuator means. Initial operation of the actuator means opens the second valve means and its further operation opens the first valve means. The valve means are constructed and arranged so that inlet pressure provides a force tending to close the first valve means and another force which tends to open the second valve means whereby proper sequential operation of the valves is assured and so that the force acting to open the second valve is transmitted to the first valve when it is being opened.

Abstract: The preferred embodiment of the invention disclosed herein is an address printer including roller means for feeding a workpiece, for example, an envelope, on which printed material is to be duplicated, liquid application roller means for applying a copying liquid on the workpiece being fed and delivery means for delivering a master card on which the printed material, for example, an address, to be printed is contained. Both the workpiece and the master card are delivered to print rollers which print the printed material from the master card on the workpiece. Also included is a drive shaft for rotating the roller means and also an operating shaft arranged to operate the liquid application roller means and the delivery means. Coupling means adjustably connects the drive shaft to the operating shaft whereby the operation of the liquid application roller means and delivery means can be adjusted relative to the feed roller means so that the location of the print position on the workpiece can be adjusted.

Abstract: A steam trap in accordance with the preferred embodiment of the invention disclosed herein includes a valve body member formed with inlet and discharge passages and having a valve seat intermediate the passages that cooperates with a valve member to control the flow of fluid. The valve member is movable in a control chamber and is spaced from the control chamber to form an orifice through which fluid can flow from the inlet side of the valve member into the control chamber for controlling the operation of the valve. In accordance with one aspect of the invention, the valve member is made of a material having a different coefficient of thermal expansion than the material forming the control chamber so that the orifice size and the pressure drop thereacross vary non-linearily with temperature whereby the opening and closing of the trap can approximate the saturation curve of the fluid.

Abstract: A duplicating machine for duplicating printed material from selected master cards onto a workpiece comprises a master card feed station including a feed device for feeding cards to a print station and a workpiece feed station including a device for feeding workpieces to a moistening apparatus and to the print station. Also provided is a card reading device for detecting predetermined information characteristics stored on an adjacent master card in a stack and for determining whether the printed material on that card is to be duplicated. If the material is to be duplicated the reading device provides a signal to a control system that actuates the workpiece feed device for feeding the workpiece to the print station.

Abstract: The preferred embodiment of the invention disclosed in this application includes a vehicle having an engine and carrying a lift apparatus including a boom assembly and hydraulic motors operatively associated with a hydraulic control system for selectively operating the motors to raise and lower the boom. Included in the hydraulic control system is an electric motor and a pump, the former driving the latter and being energized by an electric power system including battery means in series with the motor. Between the battery and the motor there is provided switch means operatively associated with valve actuating members used for the selective operation of the hydraulic control system so that when any valve actuating member is moved to a position operating the hydraulic control system, it simultaneously actuates the switch means closing the circuit between the battery and the motor.

Abstract: A flashlight in accordance with the preferred embodiment of the invention includes a housing enclosing a battery retaining member formed with spring arms for retaining a pair of batteries in spaced-apart relationship. Further included is a light bulb having a pair of leads extending therefrom and carried at one end of the housing with the leads each connected to a battery. Adjacent the opposite end of the housing a switch wire connected to one battery extends between the battery retaining member and a flexible wall of the housing. The other end of the switch wire is located adjacent a cutout portion of the battery retaining member which exposes a surface of the other of the batteries so that when the flexible wall of the housing is pressed the other end of the switch wire contacts the other of the batteries completing a circuit between the batteries and the light bulb.

Abstract: The preferred embodiment of the invention disclosed herein comprises a headband formed from a generally rectangular sheet of paper folded intermediate its shorter ends such that the end portions are in overlapping relationship. Extending from one elongated edge of the headband is a crown member and extending along the other elongated edge is a sweatband, preferably, in the form of a moisture resistant wax or plastic material. Each of the end portions of the headband includes an elongated strip of adhesive of the type that adheres only to itself so that the relative position of the end portions can be adjusted to accommodate different head sizes. Preferably, the adhesive on one end portion is a transversely extending strip on the outer surface of the headband and the adhesive on the other end portion is a longitudinally extending strip on the inner surface of the headband whereby adhesive contact through a range of sizes can be assured.

Abstract: The preferred embodiment of the invention disclosed herein relates to arrangements for supporting a marker such as a gravestone above an excavation such as a grave in which a receptacle member is buried. The saddle member is located in the excavation and has a support surface disposed above the receptacle member and below the ground surface surrounding the excavation. On the support surface is carried support means, for example, a plurality of blocks arranged in stacks to form a support base generally level with the ground surface around the excavation for supporting the marker. In one embodiment of the invention, the receptacle member is a vault in which a coffin is carried and the saddle is a generally U-shaped member having support legs seated on the top surface of the vault.

Abstract: The preferred embodiment of the invention disclosed herein includes a main check valve responsive to the rate of flow of fluid to a demand system and a bypass valve metering the flow of fluid to a bypass system. In the closed position of the main check valve, the bypass valve is in a fully open position whereby a predetermined minimum flow from a pressure source is maintained; in an intermediate position of the main check valve responsive to the predetermined minimum rate of flow thereacross, the bypass valve is closed and remains closed from the intermediate position of the main check valve to the fully open position. Operation of the bypass valve is controlled by fluid pressure from the inlet side of the main check valve which acts on a piston associated with the bypass valve and the buildup of pressure is controlled by a pilot valve.

Abstract: The preferred embodiment of the invention disclosed herein includes apparatus for and the steps of separating glass, metal and other generally non-combustible material from refuse to provide a volume of generally combustible refuse, shreddingthe volume of combustible refuse into relatively small particles and mixing the particles with primary combustion air, which is used to convey the particles to a combustion chamber. Auxiliary burners are used to heat the combustion chamber to a predetermined temperature above which the particles are self-igniting and use of the burners is thereafter discontinued unless the temperature falls below the predetermined temperature. The particles are separated as they are injected into the combustion chamber with a cyclonic motion. In the combustion chamber the mixture is ignited and converted to combustion gases which flow through the chamber.

Abstract: A package formed from a film of relatively stiff material is provided having an upwardly opening recess for containing an article. At least a portion of opposite side walls of the recess are inclined inwardly to engage and hold the article in the recess. An integral hinge is provided in the package along an axis of the recess permitting the base of the package to be bent along the hinge line to a position where the normally inwardly inclined side walls are parallel to one another to allow insertion of article into the recess. Thereafter, when the package assumes its flat position the walls of the recess incline inwardly and retain the article in the package. Also disclosed is a mold for forming the package and a method for inserting an article into the package.

Abstract: The preferred embodiment of the invention disclosed herein includes a motor operatively connected to drive a rotatable drum assembly including cutting means rotatable through a cutting station where brush and similar debris is cut into small chips. Adjacent the cutting station is a feed station from which the brush may be hand-fed to the cutting station and at the feed station is actuating means operative to actuate emergency shutoff means and emergency brake means, the former being operative to shut off the motor and the latter being operative to stop the rotation of the drum assembly. Preferably, the emergency brake means includes a band member including a brake lining located about the periphery of a portion of the drum assembly and having spaced apart end portions. One end portion of the band member is fixed to a frame and the other end portion is spring biased away from the drum assembly so that the brake lining is normally not engaged with the adjacent periphery of the drum assembly.

Abstract: Apparatus for measuring the density of a dirty fluid, said apparatus comprising a hollow body adapted to have said dirty fluid passing through its interior; a rigid support member within which the hollow body is mounted and to which it is connected to provide a space therebetween adapted to contain a clean fluid; drive means for exciting said hollow body to vibrate at a resonant frequency; detecting means for detecting a density signal representative of the frequency of such vibrations, the frequency of said density signal in operation being dependent upon the density of said dirty fluid; and pressure transmitting means for transmitting the pressure of dirty fluid passing through the interior of the hollow body to the clean fluid in said space, so that the exterior of the hollow body is always subjected to substantially the same pressure as the interior thereof.