Abstract: The present invention produces discrete droplets of cryogenic liquid, suitable for injection into receptacles such as cans or plastic bottles, at high speeds. A container of cryogenic liquid includes a hole and an orifice, spaced apart from each other, and defining a path for liquid to flow out of the container. A conduit directs a gas into the space between the hole and the orifice. The orifice is formed in an orifice plug which can be adjusted so as to vary the volume of the space between the hole and the orifice. When gas fills the space, the gas tends to prevent the outflow of liquid. When gas is withdrawn from the space, liquid can flow out of the container. By rapidly closing opening a valve which supplies gas to the space, and by proper choice the volume of the space, the liquid can be made to fall out of the container in discrete droplets.

Abstract: An apparatus for supporting at least one inner cryogenic fluid containment system within an outer isolating enclosure to retard heat transfer into the inner containment system comprising a plurality of supports serially interconnected and laterally spaced by lateral connections to extend the heat conduction path into the inner containment system.

Abstract: A device for cryogenic refrigerating of an object below the triple point temperature of the cryogen. The device includes a housing in which is placed a porous plug. A liquid cryogen is supplied to one side of the plug at a pressure greater than the triple point of the cryogen. A pressure below the triple point is maintained on the other side of the porous plug. The cryogen flows through the plug and forms a solid on the supply side of the plug. The solid cryogen provides cooling by sublimation on a continuous basis to a cold station thermally coupled to the plug.

Abstract: A method of eliminating odor in a heat pump system of a vehicle includes the steps of detecting removal of the vehicle passengers and ignition key after use of the cooling mode or air conditioning of the passenger compartment heat exchanger, operating the blower, reversing the flow of refrigerant in the heat pump to place the passenger compartment heat exchanger in heating mode to remove latent moisture to eliminate odor therefrom.

Abstract: In a method for calculating torque for a variable capacity type compressor provided in a refrigeration circuit and driven by an engine to compress and discharge refrigerant to be circulated through a heat exchanger in the refrigerant circuit, a rotational speed of the compressor is calculated, a quantity of refrigerant discharged from the compressor and pressure of refrigerant in high-pressure side are calculated, a capacity of the discharged refrigerant during operation of the compressor is calculated based on the calculated discharged refrigerant quantity and the calculated rotational speed, and the torque is calculated based on the calculated refrigerant pressure and the calculated capacity.

Abstract: An air conditioner employs a refrigerating cycle involving a compressor 1, an outdoor heat exchanger 5, an indoor heat exchanger 9, an expansion valve 7, and a non-azeotropic coolant mixture composed of high and low boiling coolants sealed in the refrigerating cycle. The outdoor heat exchanger 5 is provided with a first blower 15 and a second blower 17. A speed controller 18 drives and controls the first, and second blowers 15 and 17. The speed controller 18 achieves a first mode to decrease an air quantity to part of the outdoor heat exchanger located on the upstream side of a flow of the coolant smaller than an air quantity to part of the outdoor heat exchanger located on the downstream side of the flow of the coolant, and a second mode to increase the air quantity to the upstream side of the outdoor heat exchanger greater than the air quantity to the downstream side of the outdoor heat exchanger.

Abstract: A rotational speed of a fan is maintained at a preset one when an angle of a flap is at a maximum air-flow angle, increased by a specified value when the angle of the flap has been changed by a specified angle in the direction away from the position of the maximum air-flow angle, and decreased by a specified value when the angle of the flap has been changed by a specified angle in the direction toward the position of the maximum air-flow angle. It is possible to prevent any occurrence of condensation and air-flow pulsating noise without needing any complex control such as load response control and yet without requiring any complicate construction in the flap.

Abstract: A mechanism to control air flow between the freezer and fresh food compartments of a refrigerator includes an elongated air flow tube and a flow control housing with mating planar surfaces angled relative to the longitudinal axis of the air flow tube. A mating gasket is positioned between the planar surfaces and joined to each with adhesive. An electrical conductor extends through the air flow passageway in the tube and housing and includes a plug of material around the conductor's protective cover. A recess in the housing mounts the plug with an angled surface of the plug filling a matching interruption in the housing's planar surface to prevent air leaks around the conductor. The housing and plug include cooperating dimples which receive a capillary tube extending through the air passage.

Abstract: A compression-type refrigeration system is disclosed, in which "flash gas" formation is eliminated without artificially maintaining condenser temperature and pressure levels. Condenser temperatures and pressures are allowed to fluctuate with ambient operating conditions, resulting in reduced compressor load and increased refrigeration capacity. After condensation, liquified refrigerant in the conduit between the receiver and the expansion valve is pressurized without adding heat, by means of a combination of (a) a positive-displacement pump, in parallel with the conduit, (b) a bypass conduit pressure regulating controller, and (c) a check valve in the conduit, to a pressure sufficient to suppress flash gas in the conduit. A variable speed liquid injection pump is provided to inject liquid refrigerant from downstream of the positive-displacement pump to upstream of the condenser, at a controlled rate sufficient to desuperheat the refrigerant upstream of the condenser.

Abstract: A vapour compression system, in which the pressure and flow rate of refrigerant in components of the system to control and to optimize use of heat-transfer surfaces and to minimize power consumption, comprises a compressor 1, a condenser 5, a two-section evaporator 15, and a needle float valve 13 for maintaining a pressure differential between the condenser and the evaporator. The two section evaporator comprises a first section 17 which receives refrigerant from the condenser and which partially evaporates it to discharge two-phase refrigerant into a reservoir 23 in which liquid refrigerant is collected and from which low pressure refrigerant vapour is supplied to the compressor, and a second section 19 which receives liquid refrigerant from the reservoir and evaporates it at least partially.

Abstract: A solenoid valve 70 is disposed in a pipe line between an expansion valve 60 and an evaporator 80 for rear seats side. When the cooling operation is switched to the operation of utilizing only evaporator 50 for front seats side from the operation of utilizing evaporators 50 and 80 for front seats side and rear seats side, the solenoid valve 70 is closed by closing the operation switches Sc and Sf. The solenoid valve 70 can restrain an occurrence of water hammer phenomenon by stopping a refrigerant flow in air-liquid phase at the downstream of an expansion valve.

Abstract: A warp knitted textile spacer fabric, a process for producing same, and articles utilizing same are disclosed. The spacer fabric is of an at least six-bar Raschel construction produced on a double needle bar Raschel knitting machine by knitting front and back stretchable fabric substructures of respective sets of ground and elastic yarns interknitted with one another in a stretchable resilient stitch construction while simultaneously knitting at least two sets of monofilament pile yarns in a pile substructure integrated with and extending between the fabric substructures to form pile segments extending transversely between the fabric substructures in differing angular orientations to the widthwise and lengthwise dimensions of the fabric, producing a pyramidal truss-like system of pile segments which maintain the fabric substructures in spaced parallel relation yet are resiliently compressible and resist relative shear movements of the fabric substructures.

Abstract: A clothes washing machine includes a main washing/spin-dry tub and an auxiliary tub in which clothes can be boiled. The auxiliary tub has its own water supply and a heater for heating the water. The auxiliary tub can be permanently attached to the main washer housing or it can be removable therefrom. A rotary drum can be disposed within the auxiliary tub, which drum can serve as a clothes dryer when free of water and with the heater actuated.

Abstract: A wheel clamp assembly to be applied on a road wheel of a vehicle to prevent unauthorized operation of the vehicle. The assembly includes a first elongate arm member and a catch member at one end of the first arm member projecting transversely of the first arm member. The first arm member and a second elongate arm member are each joined at their bottom ends to an elongate body member. The body member supports the arm members in spaced apart relationship so that the width of the road wheel can be accommodated between the arm members. The second arm member is movable relative to the first arm member between an inoperative position spaced from the first arm member an amount sufficient to permit the catch member to be located into and out of the wheel well opening, and an operative position wherein the second arm member is substantially parallel to the first arm member and extends transversely of the front face of the wheel. A key-operated locking mechanism retains the second arm member in the operative position.

Abstract: A lock for furniture includes a plunger assembly for actuating a lock mechanism. The plunger assembly includes a reader for receiving a control signal from a key. The plunger assembly includes a curved surface for contacting a lock rod such that the plunger assembly requires a constant force to move the lock rod through its range of motion to a locked position. A catch assembly secures the plunger, and hence the lock rod, in a locked position. A solenoid shifts the catch assembly to release the plunger assembly. The lock assembly may also include a lever connected at one end to the catch assembly and having a counterweight on an opposite end.

Abstract: A transfer device in a press line has traverses which are situated transversely with respect to the workpiece passage and can be adjusted in the horizontal and vertical direction, and which support sheet metal parts placed on them. The traverses are fastened on toothed belts are movable in guide strips on deflecting rollers by servomotors.

Abstract: A ram assembly for riveting apparatus. The piston rod is stabilized for close tolerance or minimum lateral deviation at the work point by linear bearings which ride on an elongate stabilizer bar and are mounted on an elongate member which is in turn rigidly attached to the piston rod for movement therewith, the lateral deviation of the piston rod being controlled by the orientation of the stabilizer bar. This allows a stabilizing piston rod portion to be eliminated so that the space length-wise taken up by the ram assembly may be reduced.

Abstract: A dynamometer for testing engine powered vehicles including an induction motor coupled directly to the vehicle engine or the driven wheels thereof. A computer in response to the engine or wheel speed and the torque applied to or received from the engine or wheels by the motor provides a desired torque signal to a motor power controller to similate the road load and/or vehicle inertial forces encountered by the vehicle during actual operation and to compensate for the parasitic losses of the dynamometer. The motor power controller in turn applies a d.c. voltage to the motor when the desired torque signal is negative to cause the motor to absorb power from the engine or driven wheels and applies an a.c. voltage to the motor when the desired torque signal is positive to cause the motor to supply power to the engine or driven wheels in accordance with the parasitic losses and the road load and/or inertial forces to be simulated by the induction motor.

Abstract: A contamination measurement apparatus for determining a level of particulate contamination in a fluid. The apparatus includes a filter for passing a fluid therethrough. A volume indicator produces movement of a test piston in response to the fluid passing through the filter. The flow decay characteristics of the fluid are determined in response to movement of the test piston. A back flush mechanism returns the fluid back through the filter by use of a back flush piston which reciprocates in a chamber between a first position wherein the back flush piston is engaged with the test piston, and a second position wherein the back flush piston is disengaged from the test piston so that the test piston is free to move in response to the fluid volume.

Abstract: Disclosed is an indicator (15, 35) for determining the level of contents in an opaque, plastic container (10). The container (11) is filled with a solid chemical (11), such as a detergent. A spray of warm or hot water (19) impinges upon the eroding surface (16) of the solid chemical (11) to produce a chemical solution. The container (10) is provided with a thermo-chromatic strip (15, 35) for detecting the level of solid chemical (11) within the plastic capsule (10). A method of dispensing a solid chemical (11) and a dispensing container (10) are also disclosed.

Abstract: The invention provides a tire changing and balancing machine. On the same shaft used to mount and demount a tire, a wheel assembly is balanced. A tire on a wheel assembly is placed between a breaker blade and a breaker pad. The breaker blade collapses the tire. The wheel assembly is then mounted on a shaft. A mounting and demounting head is used to remove the tire from the wheel assembly. A new tire is placed on the wheel assembly. The mounting and demounting head is then used to mount the new tire on the wheel assembly. The wheel assembly and mounted tire are then spun on the shaft and balanced.

Abstract: An angular velocity sensor of the type wherein a flow of gas forced by a pump into a gas path in the sensor body through a nozzle hole and directed toward a pair of thermosensitive resistance elements provided in the gas path is deflected by the action of an angular velocity and the deflection of the gas flow is sensed by the thermosensitive resistance elements, and which is further provided with a thermostatically-controlled gas path which is heated in order to maintain the gas flow at a constant temperature to avoid the effect of ambient temperature variations. The sensor also is provided with a gas path for absorbing pulsations of the gas flow caused by pumping operations.

Abstract: The angular speed measuring device has two acceleration sensors mounted on a circular plate rotating about a first rotation axis and each sensor generates a signal depending on a Coriolis force produced when it rotates about two additional rotation axes. The rotation axes are orthogonal and the acceleration sensors are at least partially made of silicon and displaced by 180.degree. on the planar plate. An initial signal processing device is mounted directly on a circular planar plate on which the acceleration sensors are mounted. A light emitting diode is used to transmit the signals from the initial signal processing circuit to a signal processing circuit off the planar plate via a photodiode receiving device.

Abstract: A sensor for measuring accelerations has a small plate 1 which is arranged in a housing 3 perpendicular to a direction of measurement 11, and is clamped at its edges with the interposition of flexural soft regions 2. There is, furthermore, provided a transmitter-receiver unit 4a, 4b which is so arranged in the housing 3 on a path compensator 12 that rays coming from the transmitter 4a are reflected by the small plate 1 onto the receiver 4b. Thereby an electrical signal is formed which serves to control the voltage 13A outputted by the path compensator 12. In a further embodiment of the invention, there are two transmitter-receiver units which are so arranged in a housing 23 that the rays coming from the transmitters 24a are reflected by the front and back of the small plate 1 onto the receivers 24b.

Abstract: A pipeline inspection apparatus includes a pipeline pig which has a shaker for causing the pig to vibrate in one or more of the vertical, longitudinal, lateral, bending and torsional senses. The vibrations are transmitted into the wall of a pipeline through which the pig is moved and the vibration response of the pipeline is measured by accelerometers in the pig for detecting one or more of the vertical, longitudinal, lateral, bending and torsional motions of the pig. A data acquisition system and computer are used. For displaying and/or recording the measured data in a form which can be used to identify variations in the structural condition of the pipeline.

Abstract: A fabrication of a shim for insertion within a gap extending in two orthogonal directions between two structural members in the building of a mechanical structure is accomplished by measuring the gap to provide a map of gap width. Variations in gap width appear in the map so as to enable machining of the shim with corresponding variations in thickness so as to fit accurately in the gap. Measurement of the gap width is attained by use of two acousto-electric transducer assemblies, each of which is constructed as an array of electrode discs produced by photolithography upon a flexible, electrically-insulating film of piezoelectric material which serves as a substrate for support of electrodes on a front surface thereof and a ground plane structure on a back surface thereof. The two transducer assemblies are secured adhesively to corresponding surfaces of structural members defining the gap, and an acoustically-transmissive gel is disposed between the two transducer assemblies.

Abstract: An ultrasonic testing machine has a rotor (20) which incorporates several probes (21 to 23) and which has a transmission device (26) with several channels for connecting the probes (21 to 23) to a stationary electronic control and analysis device (32). The rotor (20) contains more probes (21 to 23) than channels in the transmission device (26). All probes (21 to 23) are connected electrically to a first multipoint connector (24) and all transmission devices are connected electrically to as second multipoint connector (28). At least one interchangeable plug counterconnector (30) corresponding to these two multipoint connectors is present and contains connections for contacts associated with the channels of the transmission device (26) with contacts of connections for some of the probes (21 to 23).

Abstract: An inertial sensor for measuring changes in rotational motion of a sensor support, having a flywheel rotationally movable in the plane of rotational motion relative to the sensor support and a measured value sensor picking up the rotational state of the flywheel relative to the sensor support. A torque coupler is provided between the sensor support and flywheel. The torque coupler has a torque curve that is a linear function of the relative angular velocity between the flywheel and the sensor support. The measured value sensor is designed as an angular position detector that taps off the rotational angle of the flywheel relative to the sensor support.

Abstract: The invention is related to numerous improvements for fiber optic measuring systems, and principally those utilizing a deformable diaphragm for sensing pressure. One feature of the invention is particularly oriented to automotive engine combustion chamber pressure measurement. For that application, a sensing tip shielding technique is described using a sintered metal porous plug, which reduces temperature fluctuations experienced at the sensing tip and shields the sensing tip from corrosive materials. A technique for compensation of a fiber optic pressure sensor is also described. In that method, a referencing wavelength is partly reflected and partly transmitted past a filter coating at the sensing end of the optical filament. This technique of the sensor provides improved calibration.

Abstract: A device to monitor tension in a fastener assembly such as a stationary bolt and a moveable nut for securing elements therebetween. The device is in the form of a washer for use in the assembly between the nut and the elements or the bolt head and the elements. In one example, a slot is provided in the surface of the washer and extends radially outwardly from the inner periphery thereof. A recess is formed in the bottom of the slot, creating at least one fulcrum point in the slot. A monitor and indicating strip, for example a spring steel, is located in the slot and, under tension from one of the fastener assembly members, the distal end of the strip rises from the slot to provide a visual and measurable monitor of tension in the assembly. In another example, the monitor strip is located on the surface of the washer and the fulcrum is located on one of the fastener elements, such as on the underside of the nut, for engaging the strip under pressure, causing its distal end to rise.

Abstract: An electromagnetic flowmeter comprises a cylindrical support. A pair of coils are positioned at the outer surface of the cylindrical support, spaced approximately 180.degree. apart. The cylindrical support is coaxially mounted within a cylindrical magnetic path, which defines a space for the coils between the magnetic path and the cylindrical support. The magnetic path has two ends, each engaged by a flange. The flanges include bosses, which together with the cylindrical support and magnetic path serve to position the coils. A conduit is mounted within the support, and a housing encloses the support, the coils, and the conduit. The length of the housing is greater than the length of the conduit, defining a gap between the housing and the conduit.

Abstract: A pump station flowmeter is disclosed including a sudden high inflow change detection circuit for eliminating from a series of emptying characteristic calculations taken over a period of time those measurements which are outside of a predetermined acceptance range. The wet well dimensions, level detector signals, clock signals and pump status signals are supplied as inputs to both a volume rate of change calculator and to the sudden high inflow change detector. In the event of an undesirable measurement, the sudden high inflow changes detection circuit operates a gate to isolate the volume rate of change calculator from the emptying characteristic calculator that calculates outflow. A flow integrator is provided for calculating volume per cycle from the volume rate of change signal, and an inflow calculator serves to produce inflow from the volume per cycle signal.

Abstract: A sampler having a pneumatically actuated scoop closes an opening in the bottom of a pipe containing an auger. The scoop swings through particulate material, (especially granular and/or powdered coal) as it is discharged from a belt of a feeder at the transition between where the coal is carried on the belt and where it falls over the end pulley around which the belt is entrained. The scoop extends across the full width of the belt and captures a sample of the material in the pipe where it is delivered by the auger to a discharge port. A valve connected to the discharge port maintains the pressure integrity of the feeder (at pressure above atmospheric pressure).

Abstract: A sludge sampler for industrial settling ponds has a handle and an insertion tube of known graduated length so that the sampler may be embedded in sludge at a known depth. At the bottom of the insertion tube is a frame which holds a sampler container jar and which terminates downwardly in a thin walled insertion cone. A lever at the top slides a rod and lifts a cap on the jar so that free flowing sludge may fill the jar. The jar is held in a cage pivoted on the frame. The center of the cover and one edge of the cage are connected by pivoted links. As the cover is lifted, the cage is tipped, tipping the jar to receive the sludge. As the lever is returned to its closed position, the jar-capturing cage is returned to its upright position, the cover is lowered, the jar is covered before the insertion tube is lifted and the cage, the frame , the cone and the jar are lifted out of the sludge.

Abstract: A retrieving device for the assembly and disassembly of probes into process pipes and tanks comprising a hydraulically activated cylinder attached to a nipple and ball valve mounted on the wall of a pipe or tank and the cylinder may be operated by applying a suitable pump. A pair of pistons are inserted within the cylinder and these pistons are arranged in telescoping fashion. A piston rod attached to one of the pistons is constructed so that it can securely attach to a probe or other device. a fluid pressurizing means which includes a pair of hydraulic tubes are attached to the upper and lower ends of the hydraulic cylinder so that hydraulic pressure can be applied to extend the pistons and insert the probe or retract the pistons and remove the probe. The ball valve is closed and the retrieving device can then be removed from the valve to service and replace the probe. When the probe is inserted within the nipple a sealing device seals the probe against fluid leakage from the pipe or tank.

Abstract: A direct drive power window actuator for remote opening and closing of a pivotable quarter window of an automotive vehicle comprising a reversible motor, power transmitting gear train operatively connected with said motor at one end and with a rotary shaft at the other end for rotating said rotary shaft, and window mounted linkage assembly for converting the rotational torque of the rotary shaft into an opening-and-closing force for the window.

Abstract: An oscillating signal light mechanism producing substantially constant angular velocity oscillation cycles of a single light is comprised of at least one signal light assembly mounted on a base for rotation of the light assembly relative to the base, a source of motive power including an output shaft rotated at a constant velocity in a single direction of rotation, and a mechanism mechanically connecting the output shaft to the signal light assembly for converting the constant velocity single direction rotation of the output shaft to cycling movements of the signal light assembly through arc segment oscillations at substantially constant angular velocity.

Abstract: A transmission mechanism for a magnetic damping type step machine includes two supporting plates bilaterally fastened to a machine base in the middle to hold a main shaft, a double-groove spool mounted around the main shaft to hold a flywheel, two pedals pivotably connected to a rear crossbar of the machine base at either side, each pedal having pedal rod with a foot plate and a linking rod with a locating plate respectively disposed at two opposite sides by the respective supporting plate, and two transmission wires, each transmission wire having one end wound round either groove of the double-groove spool in either direction and an opposite end turn over pulleys on the respective supporting plate and the locating plate of the respective pedal.

Abstract: A countershaft automatic transmission for vehicular use is disclosed. The transmission has four forward gears which operate using two clutches and two dual synchronizers, The two clutches are mounted on a main shaft with associated gear clusters and the synchronizers are mounted on a countershaft with associated mating gear clusters. Reverse gear uses another synchronizer mounted on a lay shaft with associated gearing. Gear engagement is accomplished by actuating a hydraulic clutch after having shifted a synchronizer to select the gear to be engaged.

Abstract: A multispeed transmission for motor vehicles includes, rotatably mounted in a gearbox housing (4), an input shaft (1) carrying fixed gear wheels and loose gear wheels, a first driven shaft (2) carrying loose gear wheels and fixed gear wheels and a second driven shaft (3), both the driven shafts (2 and 3) engaging, respectively, via first and second fixed final drive pinion (5 and 6), with a driving gear (7) of a differential (8) that drives front wheel drive shafts by way of constant velocity joints. All gears including the reverse gear are synchronized. The fixed gear wheels (10 and 12) for the first and second gears are carried on the input shaft (1). The loose gear wheels (11 and 13) for the first and second gears, together with their associated synchronizer (21), are carried on the first driven shaft (2).

Abstract: A multiple ratio transmission includes an auxiliary countershaft assembly including a auxiliary countershaft, a first auxiliary countershaft gear fixed for rotation on the auxiliary countershaft and constantly meshed with an output shaft range gear, and a second auxiliary countershaft gear rotationally fixed to the auxiliary countershaft and constantly meshed with an intermediate shaft output gear for coupling either the intermediate shaft or main countershaft of a main transmission section thereby allowing fewer gears to be utilized to achieve a desired number of speed ratios.

Abstract: A turn signal cancellation mechanism is comprised of a handle, an actuator, a pawl and a biasing means. An engagement segment of the actuator has a modified T-shaped slot formed therein. The pawl is defined by a base having an arm projecting in an offset manner therefrom. A post is mounted perpendicularly upon the arm opposite from the base. The pawl is slidably juxtapositioned within the actuator such that the post of the pawl engagably extends through the modified T-shaped slot within the actuator.

Abstract: A pedal bracket assembly translates pedal motion into a first switching motion without change of position being sensed by a position sensor. Additional pedal motion does not further change the switch position, but is translated into motion sensed by the position sensor. In this way, the switching function and position transducer functions are maintained independent one from the other, while allowing the two functions to be combined into a single sensor assembly.

Abstract: The invention is a device and method for the non-invasive determination of the volume of an object which may be animate. The invention employs the principal of the Helmholtz resonator to simultaneously measure acoustic resonance signals which are characteristic of the container enclosing the object and a separate resonator disposed within the container, thereby permitting determination of the body volume independent of the influence of variations in temperature and humidity.

Abstract: The two-staged brake handle includes two axle bushes, a brake handle and a positioning stand. Two bolts are screwed on the axle bushes, respectively. The positioning stand has an axle center hole wherein an arc gutter is provided around the rim for matching the protuberant rim of the two rotating axle bushes. The top rotating axle bush has a penetrating hole and a bolt hole, and the bottom rotating axle bush has a penetrating hole and a round hole in the corresponding positions. An arc hole and a round hole are provided in the front part of the brake handle. Two bolts are respectively inserted into the positioning stand to interlock into the penetrating holes and bolt hole of the top and bottom rotating axle bushes. A twisting spring is installed in the space between the bolt in the arc hole and the bottom axle bush. Two end hooks of the spring are fixed in the bottom of the positioning stand and against a nut.

Abstract: A universal hand tool for a bicycle, including a head section having a movable clamping arm and a fixed clamping arm defining a clamping slot, and a handle section formed with multiple hexagonal holes. The movable clamping arm is disposed with a thread sleeve and fitted on a thread rod of the head section, whereby the movable clamping arm is movable by means of rotating the thread sleeve. A scale ruler is disposed above the thread rod for measuring the sizes of the nuts clamped in the clamping slot. The head portion is formed with a large and a small recesses and cooperative first and second projections under the thread rod for tightening/untightening slotted nuts. A hinge member secured on one side of the head section and the handle section to pivotally connect the same. The head section further has a rectangular recess and the handle section has a corresponding rectangular projection.

Abstract: An adjustable gripping and locking tool having a body (28) to which is attached an elongated handle (22) and a pivoting handle (26). An adjustable jaw (34) is slidably mounted on the body and an adjusting lever (52) cooperates with the adjustable jaw to adjust it toward and away from a fixed jaw (24). The adjusting lever is attached to the pivoting handle and is operated with the hand holding the tool, as is the locking and unlocking operation. The construction of the tool permits the adjustment of the jaws directly against the work piece and eliminates the tedious and time-consuming operation of turning a threaded screw back and forth several times to effect an adjustment that will permit the jaws to be locked on an object.

Abstract: Apparatus for perforating corrugated tubing of large diameter is achieved by use of multiple cutters disposed within the threading on the feeder-cutter wheels. The apparatus receives tubing to be perforated along an axial path coincident with the axis of the tubing. A plurality of feeder-cutter wheels drive the tubing through the apparatus and concurrently perforate the tubing in the valley of its corrugations by virtue of a plurality of cutters disposed within the threading. These multiple cutters allow perforation of larger diameter tubing in the range of nine to twelve inches. Each feeder-cutter wheel, and the drive shaft each wheel is mounted upon, is offset at an angle relative to the axial path, this angulation facilitating uniform perforations at higher speeds. This design permits the wheels to be interchangeable with different wheels, allowing the apparatus to perforate tubing of different diameters.

Abstract: An apparatus for cutting helically shaped pieces from potatoes has a top portion forming a drive section, a center portion forming a feed section and a lower portion forming a cutting section. The drive section comprises a plurality of rotatable shafts extending in a circle about a central axis. The feed section comprises a plurality of rotatable rods arranged in a circle about the central axis, each rod at its upper end connected to a lower end of a shaft. At least the lower part of each rod has a spiral outer surface. The cutter section includes a cutter of hollow conical form having a series of spiral channels on its interior surface, each spiral ending in an aperture, the apertures forming cutting edges. Potatoes are fed through the feed section, on rotation of the rods, by the spiral surfaces of the rods, and pushed into the cutter, which on rotation, cuts helical pieces from potatoes.

Abstract: A percussion instrument (10) having a plurality, preferably two (2), of playing heads h1, h2, spaced across from which corresponding apertures 40, 41 are formed in a panel member (20). Side (16, 18), top (12) and bottom (14) panels provide with the playing heads h1, h2 and panel member (20) a closed compartment (25) out of which chambers (32, 34) are formed in corresponding relationship to their heads h1, h2, respectively, by means of an interiorly mounted panel (30).