Abstract: A towing circuit (20) for a hydrostatic travelling drive system with a prime mover, a variable displacement pump (3) and a travel motor (2) supplied thereby, a parking brake (6) arranged to be applied by a brake valve (9) and, optionally, a steering booster (30) and differential gear locking means (40) actuated by a change-over valve (34) has its inlets connected to the travel motor (2) through shut-off valve means (22). A filling pump (4) is connected to supply conduits (7,32) in which the brake valve (9) and the change-over valve (34), respectively, are arranged. Feeding conduits (26,45) provided with check valves open into these supply conduits (26,45). The feeding conduits (26,45) are connected with connecting conduits (21a,21b) governed by the shut-off valve means (22). During towing operation, the travel motor (2) driven by the wheels (1) generates the auxiliary pressures in the supply conduits (7,32) required for the operation of the steering booster (30) and the differential gear locking means (40).

Abstract: In a gravimeter the measuring mass is supported by springs which are arranged in regular array around the measuring mass and exert pressing forces on the measuring mass along lines of action extending at an angle to the horizontal. The state of equilibrium with a predetermined value of the acceleration due to gravity coincides with an extreme value of the force-versus-deviation characteristic of the spring system, whereby the measuring mass is held practically free from restoring forces by the spring system. A sensor detects deviations from a zero position and controls a restoring force generator. Two counter-acting sets of springs are provided. The springs are tension springs, the tensional force of which acts on the measuring mass as a pressing force through a lever transmission. A measuring range spring permits setting of measuring ranges. An advantageous construction therefor is described.

Abstract: The invention relates to an apertured camouflage material where the apertures are made as arcuate slits so that tongues are formed (FIGS. 4A, 4B). The material is a laminate of a supporting layer to which is applied a plastics layer which is initially under internal tensional stress, the tongues curling outwards when the internal stresses are activated by the slitting and heat (see FIG. 4B) thus forming a three-dimensional camouflage sheet. The pre-stressed material is blown low density polyethylene film.

Abstract: A rodent trap is disclosed having a pivotally mounted bait carrier with a catch hole, a cam surface and a magnetic flap biased to an initial trap setting position by a magnet. Thumb pressure is applied to a spring-biased striking bar comprising a major loop and a minor loop wherein the end of a trigger-setting arm is caused to bear down on the cam surface thereby pivotally moving the bait carrier flap substantially from the effect of the magnet and the trigger arm end enters the catch hole and sets the trap.An alternative bait carrier is disclosed which is mounted to the base for wobbly movement so that the lateral as well as vertical movements of the bait arm are effective to spring the trap. The bait carrier and trigger setting arm end cooperatively engage in such a manner as to automatically align the wobbly bait carrier during the trap setting procedure.

Abstract: A tablet dispenser is disclosed having an elongate hand-held core with a plurality of cavities adapted to contain tablets. A sheath is mounted to the core for slideable movement from a position covering all the cavities to another position uncovering all the cavities. A detent mechanism is employed between the sheath and the core for interrupting the sliding movement after each of the cavities has been uncovered. For spatially orienting the tablet dispenser, and without the need to look at it, distinct physical touch indicia is fixed to the dispenser in lengthwise alignment with the tablet cavities.

Abstract: Restraint apparatus is provided for immobilizing a pediatric patient during exposure of X-ray film, particularly in connection with chest examinations. The invention permits considerable reduction in the extent of exposure area of the patient's body. Manual restraint is not required and hence non-patient exposure to radiation is avoided. Because movement is restrained, the need to re-expose the patient is virtually eliminated. Adjustment is provided for the comfortable accommodation of infants up to small children. The apparatus secures both arms of an infant or small child in a forward and upward extension to achieve proper anatomical positioning for anterior-posterior or lateral chest X-ray study. Adjustable holders for different size film cassettes form part of the apparatus.

Abstract: An improved airless electric sprayer is disclosed having superior balance, portability, receptacle interchangeability, cleanability and a non-tipping stand feature. The user's hand conveniently grasps a piston grip in close proximity to the nozzle for accurate spray control at a position generally above the combined center of mass of a motor housing and receptacle for balanced comfortable use. The invention includes a release and lock arrangement affording handy receptacle attachment and disengagement without need for unscrewing the receptacle from the body of the sprayer, which also prevents spillage. To prevent clogging, any unsprayed liquid is allowed to accumulate around a reduced piston section and drain therefrom back into the receptacle. The housing has an access panel to expose pump assembly for convenient cleaning.

Abstract: A double support wall roof curb linear form fabricated from a continuous strip of metal of substantially uniform thickness into an elongated structure having both inner and outer support walls. The linear form has a top member extending the length of the form, an inner portion bent from one edge of the top member and an outer portion bent from the other edge of the top member. Both the inner and outer portions function as supports for equipment mounted upon a finished roof curb incorporating the linear form. The roof curb linear form is fabricated by first forming the inner and outer portions before formation of the top member is begun. Thereafter, the top member is formed by applying pressure to the strip of metal on opposite sides of the strip at the location of the top member. If the bottom of the linear form is to be open, pressure may be applied by a ram having an offset portion to accommodate the formed bottom member of the linear form as the form is fabricated.

Abstract: Foam forming liquid components and inert gas are directed by a gun in separate and discrete streams toward a common focal point just forward of the gun nozzle to effect mixing of the liquid components as the foaming plastic mass is directed into a container provided to receive and contain the foam product. Mixing of the liquid components within the gun which controls the flow is entirely avoided whereby the difficult problem of cleaning out reacted plastic material is entirely avoided even after long periods of non-use. In one technique, air is continuously mixed with each liquid component stream within the gun to provide frothy mixtures of liquid and air at the point of mixing of the reacting streams. A flexible extension of the nozzle may be used, if desired, to conduct the component liquids and air to a location some distance forwardly of the gun. Provision is made for air-purging the liquid component channels within the gun nozzle.

Abstract: A thin film of a compound or alloy compound of Group III and Group V elements, particularly of gallium arsenide or gallium arsenide compounds, is produced by impinging, e.g. spraying, onto a heated substrate a liquid or liquids comprising molecules carrying the constituent elements of the desired film.The constituent elements react together on or immediately above the heated substrate to form the desired compound or alloy compound which is deposited on the substrate in the form of a thin film. The resulting thin films may be used in solar cells and other opto-electronic devices.

Abstract: A water-saving shower head of the aerating type providing water in air-borne atomized form in a normal, continuously expanding pattern substantially homogeneous in cross-section as to water concentration or "wetness" with means for adjusting the rate of flare of the pattern to increase the concentration of water or "wetness" for rinsing purposes, especially for better removal of shampoo from the hair. The adjustment is accomplished by manually adjusting the position of the transverse orificed nozzle plate along the axis of the outlet passageway of the shower head, the longer the passageway, within limits, the more concentrated the shower pattern.

Abstract: The simple switch of a small pocket flashlight consists of a single spring wire conductor extending from the center post positive terminal diagonally downwardly across the insulating body separating the two cells toward the uncovered metal can negative terminal of the other cell. When pressure is applied through the flexible nonconductive flashlight jacket, the wire conductor is brought into contact with the metal can negative terminal of the other cell to close the series circuit through the cells and lamp. In opening and closing the switch, bending of the wire conductor is limited to the portion remote from the positive terminal contact end by a fulcrum formed by a bend in the wire and engaging the insulating body between the two cells.

Abstract: An adapter for a turbocharger allows an engine to operate naturally aspirated when the turbine-compressor cartridge is removed, as for repair, by procedures employing the method of the invention. A plate or a pair of plates or a plate plus conduit means for connecting the carburetor directly to the intake manifold are used to replace the turbine and compressor thereby completely closing off the turbine or the turbine and the compressor portions of the turbo housing. When, after the turbine-compressor cartridge has been removed, the compressor and turbine portions of the turbo housing are sealed in this manner, or the turbine portion has been sealed and the compressor portion bypassed, the engine will operate as a conventional, naturally aspirated, engine.

Abstract: A dynamically balanced vibratory feeder system having a material handling component and a counterweighting component, the two components being drivingly interconnected and driven in opposed relative directions in a balanced fashion. The material handling component includes an elongated platform formed to accommodate a material conveying trough. The counterweighting component includes a rigid plate and a balancing counterweight secured to the plate and located between the elongated platform and the plate. The material handling and counterweighting components are periodically driven in opposed relative directions by an electromagnet driver which includes a driving portion and a driven portion. The driving portion is essentially isolated from the reciprocal movement of the material handling and counterweighting components, while the driven portion is connected to drive the material handling and counterweighting components.

Abstract: A metal container end which is shaped to be attached at its periphery to a container body, such as a soft drink or beer container. The container end has a sealed closure having an opening activator in the form of a button raised in the container end. A lid is formed in the container end adjacent to and attached to the activator, the lid being defined by a frangible score line extending along the marginal edges of the lid from either side of the juncture of the activator and lid. The juncture of the activator and lid includes a fulcrum operable such that application of downward pressure on the activator causes the lid to sever from the container end along the score line and pivot upwardly from the container end about the fulcrum. The lid can then be manually bent along the fulcrum until it is pivoted adjacent to and coextensive with the activator.