Abstract: A method and apparatus for preoperative, horizontal plane evaluation of cases with anomalies of facial bilateral symmetry are disclosed. The required rotational and translational movements in the horizontal plane are obtained by means of a graphical technique in which the coordinate system data is derived from an articulated mandibular model.

Abstract: A dental handpiece has a rotor with pistons in longitudinal bores, the pistons being displaced by air pressure and engaging against a swash plate to cause the rotor to rotate. The direction and speed of rotation is controlled by an air distributor member having a plate which controls the amount of and direction of the air flow.

Abstract: An apparatus for controlling the actuation of a light for illuminating the work zone adjacent the operative end of a dental handpiece. The apparatus includes (a) switch for actuating a light source when a signal is transmitted to the actuating switch from the power transmitting line for the dental handpiece, (b) line for transmitting the signal to the actuating switch from the power transmitting means for the handpiece, and (c) delay shutoff switch associated with the actuating switch for maintaining the light source on for a predetermined period of time after transmission of power to the operative end of the handpiece is terminated and then causing the light source to be extinguished at the end of the predetermined period of time.

Abstract: A cropping guide especially for drawing a proportioned field for use in audio/visual work has three straight edge marking device guides, each with an index associated therewith. The first and second straight edges define a right angle therebetween and the third edge defines a bisector of the right angle to form an angle with the first edge having a cotangent equal to the ratio of the field to be drawn using the cropping guide. The ratio of the index on the first edge to the corresponding index on the second edge is also the same as the field ratio. The index on the third edge is defined by the projection thereon along a line parallel to the first edge, of the index on the second edge.

Abstract: An instrument for making graphic designs on walls or ceilings, including an elongated member having a plurality of rigid sections joined together by a unitary, integral flexible portion, center-line apertures spaced along the longitudinal axis of each rigid section providing a pivot point and a plurality of marking points along the instrument, each section having paired edge apertures spacially located along respective, opposite longitudinal edges of each section, and a paint pad having a pair of upstanding lugs for detachably mounting the paint pad at a selected pair of edge apertures to selectively place painted arc segments or stripes on walls or ceilings. A guide member having rollers can be mounted to one end of the instrument to aid in placing vertical or horizontal stripes on walls or ceilings. For very large wall or ceiling surfaces a link member can be used to couple together two instruments.

Abstract: The lengths of one or more fabric workpieces are measured by rolling a toothed measuring wheel over each fabric workpiece as it is passed through a sewing machine and conveying the revolutions of the measuring wheel to an electronic, digital counter by means of a torsion shaft whose flexibility is tuned such that while coacting with a friction brake at the counter, no reverse motion will occur due to relaxation in the fabric tension.

Abstract: The invention relates to apparatus for measuring the curvature of curved objects such as a lens, and is particularly related to measuring the curvature of hydrophilic pliable contact lenses for use in ophalmology.The apparatus comprises an annular collar to support the lens being measured, a pointed contacting plunger means for guiding the latter, means for moving said plunger in relation to said support, electrical means to set up a difference in potential between the plunger and the lens support, the two latter being made of electrically conductive material, means for detecting the passage of electrical current between the plunger and the support, a measuring system, and an electronic processing assembly which receives the above signals and which is adapted to store the value of the measurement signal at the moment when the signal from the detecting means appears.

Abstract: Two bearing sections pertaining to feelers on arms are maintained in engagement with journal axles of two rolls and a pair of transducer elements on the arms monitors therein distance from each other in representation of the roll gap. The arms can be pivoted out of the way in that the bearing sections are removed from between the axles.

Abstract: A single shot surveying instrument which is designed to be lowered to a desired location in a borehole and to take a single picture which indicates the direction of the borehole. The instrument operates in a first mode in which a picture is taken after the passage of a preselected period of time, which period is selected to allow sufficient time for the instrument to be properly positioned in the borehole. The instrument also operates in a second mode in which a picture is taken after the lapse of the preselected period of time if there is an absence of motion by the instrument during a last portion of the preselected time period. An indicator light on the instrument provides a check for premature operation of the instrument and for operability of the motion sensing capability.

Abstract: An installation for drying a liquid-containing particulate product comprises a supporting frame, a centrifugal separator removably mounted thereon and a large receptacle for the particles ejected from a discharge end of the separator basket supported on the supporting frame. The receptacle has a vertical wall defining an opening and the centrifugal separator is mounted for rotation about a horizontal axis and is arranged with the discharge end of the basket facing the opening in the vertical wall and extending into the receptacle whereby the particles are ejected into the receptacle upon rotation of the basket, the opening having a diameter slightly in excess of the diameter of the discharge end of the basket. The separator may thus be horizontally moved for placing it in position with the discharge end extending into the receptacle and for removing it without dismounting the receptacle.

Abstract: A boot dryer utilizes a housing having an ingress port and an egress port and a low current consuming motor driven fan therein. A pair of flexible hoses are removably secured to the ports of the housing and extend downwardly therefrom when the housing is supported by a wire-like hook pivotably secured to the uppermost regions of the housing. The hook is extensible in length facilitating and supporting the housing depending downwardly therefrom. The free end of the flexible hoses, removably secured to the ports of the housing, are cut so as to form an angle to the longitudinal axis of the hoses. In use, the hoses are inserted into a pair of boots exposed in side by side relationship and a slow cool flow of air enters one boot and circulates upwardly through one hose and through the housing and then downwardly through the other hose, exiting outwardly from the remaining boot, thus drying the boot without cracking or deteriorating the interior of the boot.

Abstract: Apparatus for directing flow of water passing an ocean floor dredge head into a downwardly direction, and deflecting water from directly impinging upon the dredge nozzle body. The invention comprises a dredge vehicle chassis from which is pivotally suspended a dredge nozzle body and a water-flow deflecting shield, forwardly of the nozzle. Both the nozzle body and the shield are substantially vertically elongated members suspended substantially by the top of each element from the vehicle chassis.

Abstract: A plurality of sets of an excavating vessel and an associated soil discharging plate are mounted on an endless rotary member in an excavator in such a manner that said excavating vessel goes behind said associated soil discharging plate and the free end of said associated soil discharging plate is placed well into said excavating vessel so that said free end can discharge the soil excavated and contained in said excavating vessel at a predetermined position and, thus, the excavation and soil discharging works can be performed in a continuous and synchronized fashion.

Abstract: A display device having a rear plate and a front plate that is at least partially transparent. A supporting rail underlies and is attached to the rear plate, with the supporting rail having a front edge that extends upwardly. The front edge is spaced from the rear plate the thickness of the front plate and is operable to allow the front plate to be pivoted to an open position, allowing an article such as a photograph to be inserted between the front plate and the rear plate.

Abstract: Sign assembly which can be readily set up and changed to display different information. The assembly includes a generally planar body with suction cups for securing the assembly to a mounting surface. Indicia carrying sign cards are removably mounted in slots formed by ribs on the body, and in one preferred embodiment the assembly is packaged as a kit with a number of different sign cards arranged in perforated sheets.

Abstract: A roll display device having a pair of roll mounting cylinders, an expandable frame rotatably mounting the cylinders at the ends of the frame and a base support for the frame. Each mounting cylinder has means for quickly clamping a roll end on it. Means are provided for rotating each mounting cylinder to wind or unwind a roll on or off it thus moving the roll, in either direction across the frame.

Abstract: A purse seine hairpin retainer and purse ring handling method which simplifies and lessens the danger involved in collecting and securing the purse rings that are attached to the base of a fish net used in a seining operation for catching fish. The purse rings are threaded by a purse line which is hauled in toward the boat thereby gathering the purse rings together in a closely grouped arrangement and closing the bottom of the net. The purse rings are then threaded onto the lower leg of a hairpin member which is generally hauled up and temporarily suspended over the deck of the boat while upper end of the net is hauled in and the fish removed therefrom.

Abstract: A device for disengaging snagged fishing hooks and lures is disclosed. The device includes a pole member and an operative end member which is bifurcated to define a central opening for retaining the fishing line during operation of the device. The end member is provided with features which include a flat end portion, a downwardly extending hook on one side thereof and a small opening located immediately below the hook to allow the fishing line to enter the central opening. The interior sides of the central opening are straight and smooth to avoid snagging the fishing line. The general construction of the present invention results in a straight or direct line of force from the operator through to the end of the device, thus facilitating the disengagement of snagged hooks and lures.

Abstract: A plastic carrying case is disclosed along with the method of manufacture and the mold tool. The carrying case is particularly suited for transporting and storing a fishing rod and reel, and is comprised of two plastic members which may be interlocked by a snap fit. A first plastic member includes an elongated tubular section to receive a rod and an enlarged, essentially tubular section to receive the reel. A second plastic member includes an enlarged, essentially tubular section having snap-fit interlocking surfaces which cooperate with complementary surfaces on the enlarged section of the first member to maintain the two plastic members in interlocked relationship when desired. The method of manufacture includes extruding a tube of thermoplastic material between the opened sections of a blow mold, closing the molds, and inflating the tube to a blown product conforming to the shape of the internal mold cavity.

Abstract: Animal traps consist of either snare type traps or jaw type traps. Snares are difficult to set inasmuch as they have to be situated not only where the animal will pass through the snare, but so that the snare will pull tight thus trapping the animal. Jaw type traps, although efficient at trapping animals, are usually not particularly humane in their action and snares also suffer from this disadvantage. The present trap incorporates a snare loop held by spring arms and is set by a trigger mechanism so that when the snare loop is pulled slightly as by an animal engaging the loop, the trigger releases and the spring arms move apart rapidly thus snapping the loop closed with considerable force and killing the animal instantaneously.

Abstract: An assembly kit has a structural element having two elongated leg portions, and a hinge portion pivotally connecting the leg portions with one another in a direction of elongation thereof and together with the leg portions forming an integral member. Means is provided for connecting the structural element with another structural element. Two such structural elements may be located laterally adjacent to one another and connected with one another by a plate-like connecting piece which overlaps juxtaposed end sections of the structural element and is connected with the latter by the connecting means. Three such structural elements may be located relative to one another so as to form a substantially triangular hollow support element, and a substantially triangular connecting piece may be inserted in a hollow of the support element and connected with the structural elements by the connecting means.

Abstract: An assembly kit has a hollow structural element having at least one groove inwardly of a face thereof and open to the hollow of this structural element, and a recess communicating with the groove and open at the face of this structural element. Another structural element is positionable on the first-mentioned hollow structural element and has another groove which is smaller than the groove of the hollow structural element. A connecting element is provided, which has one portion insertable in the one groove of the hollow structural element, and another portion insertable in the other groove of the other structural element so as to connect the above structural elements with one another. The connecting element has also a third portion insertable in the recess of the hollow structural element so as to prevent the connecting element from moving inwardly of the hollow of the hollow structural element.

Abstract: A toy moving car is a toy car operated by a wireless electric device and comprises a car and a wireless electric transmitter in separation. All means including a driving means and a braking means are mounted on a bottom plate of the car. A pair of front wheels of the driving means are mounted on a front axle which is journaled in both sides of an axle support frame. The axle support frame is pivoted on the bottom plate. The braking means comprises a receiver, an electromagnet and a pair of brake disks. A sliding frame is adapted to slide laterally on the axle support frame and is equipped with the electromagnet having a pair of magnet cores. Each of the brake disks is fixed to each inside surface of the front wheels by a leaf-spring as a buffer. During a time that the receiver is receiving the electric wave from the transmitter, the electromagnet works and either one of the magnet cores which is closer to one of the brake disks sticks to said one brake disk.

Abstract: Pots for growing plants including water-level indicators therefor, wherein the pot includes an outer pot and an inner pot supported therein having a lower portion of reduced diameter through which water is conducted upwardly by surface tension activity, and wherein the water-level indicator comprises a float in the water reservoir having a stem extending upwardly through a water inlet to indicate the water level.

Abstract: An electrically controlled window regulator in which a reversible electric motor is connected via transmission means to a window for movement thereof along fixed guides; said transmission means including an endless flexible member extending along a fixed path having a straight portion arranged parallel to said guides, and at which bracket means are arranged for movement along said straight portion with said flexible member and for connection thereof to said window; said motor having an output shaft on which a nut screw is mounted, and said nut screw being coupled to a flexible screw forming at least part of said flexible member.

Abstract: An outdoor hunting blind shelter which is completely portable, all weather, and compact is an inflatable single unit hunting blind and a camper's restroom facility combined, furnishing features consisting of walls and roof which are supported by hollow, tube-type ribs forming a framework all of which are made of vinyl plastic. The hollow, vinyl plastic ribs are inflated with air through an air valve located in the foundation rib. The walls and roof are of thin plastic vinyl material joined to the ribs, and they feature an opening for entry and departure in one wall of the shelter. Windows for viewing and firing firearms are provided in the other walls. Support tie-off loops are located at each corner top and bottom of the shelter for extra support if needed. Restroom facilities include both shower and tub combinations.

Abstract: Prefabricated room structure for facilities in general, such as toilets, bathrooms, kitchens and the like, suitable for installation in a finished form into a building, in which there are prepared separately and in finished form: lateral walls floor and ceiling of the room structure. The so prefabricated finished wall, floor-and-ceiling component parts of the room structure are assembled together on the site by screw fastening and/or welding together the jointed formations to obtain the room structure in the form of a box-like member ready to be installed into the building as a unit.

Abstract: A section for a telescopically extensible crane is octagonal in cross-section. The section has relatively thick upper and lower parallel plates, and side members each having a part inclined outwardly for each of the upper and lower plates and a central part generally perpendicular to the upper and lower plates. The central part of each side member may extend over more than half the height of the boom section and the inclined sections may be of differing lengths and thus inclined at different angles to the respective upper and lower plates. Preferably, the lower inclined sections are shorter than the upper inclined sections. The boom section may be reinforced by external belts, or by internal support plates.

Abstract: A hollow rectangular boom formed with four corner sections of identical cross section and plates interconnecting the corner sections is disclosed herein. Each of the corner sections is identical and is generally L-shaped in cross section with first and second legs each having a recess with adjacent pairs of corner sections being interconnected by flat plates received into the respective recesses and welded therein.

Abstract: One sheet section edge is bent to form two edge portions making a U shape with the sheet. The second sheet section has the adjacent edge bent to form two portions which lie adjacent the two edge portions of the first sheet section, a third portion formed by a 180.degree. bend and an additional bend to engage the inside of the U.

Abstract: This economical construction process utilizes preconstructed and modular techniques to erect single and multiple commercial, industrial and residential units what may be required to be built in urban or remote areas with a minimum of erection labor. The resulting product includes a pyramid-like section suspended from a centrally located chimney that also serves as a structural element both during construction and thereafter. Another embodiment uses a structural truss in lieu of the chimney for final support purposes.

Abstract: Frame member and insulated glazing unit including panes of glass held in spaced relation by a separator frame and a novel arrangement of adhesive and sealing material providing substantially continuous direct contact of the frame members with the panes to block passage of gas or vapor to the space between the panes.

Abstract: From the bottom of a vertical magazine, relatively large-sized stiffly flexible "Kwik Lok" bag closures (die stamped from 0.032" sheet polystyrene), and vertically stacked therein, compacted flatwise on each other, are individually power fed edge to edge sequentially along a rigid guide extending at a right angle forwardly from the bottom of the magazine and then dipping at its forward end to incline the front portion of the leading closure downward and thus facilitate manual insertion of a bunched polyethylene bag neck into a bag neck capturing aperture opening from the forward edge of the closure. The closures are fed one at a time from the magazine into the guide by a single revolution clutch which is triggered by each manual application to a bag neck of the forwardmost closure in the guide.

Abstract: In a case packer, wide mouth bottles are conveyed to a platform where they are arranged in alignment with the cells in the case and thereafter held in position by suction cups. The platform is rotated to suspend the bottles, mouth down, over the case. The bottles are gravity fed into cells in the case formed by upstanding partitions. A guide mechanism is interposed between the platform and the case to correct misalignment of the partitions and to guide the bottles into the cells. The guide mechanism includes, for each cell, a pair of rigid guide members aligned with opposing corners of the cell. The guide members are pivotally mounted to a grid, in opposing spaced relationship, such that the members are movable between a closed, closely opposed and preferably mutually engaging position, inclined towards one another, and an opened mutually separated, generally vertical position. Each member includes first and second sections.

Abstract: A method and apparatus for retaining asepsis of a sterile web of bags as the web is fed onto the filling pipe of a packaging machine. The filling pipe is covered by a special sterilizing boot and sterilized by directing steam or another sterilizing agent into the boot. The leading end of a sealed web of bags, the interior of which is sterile, is then attached to the boot adjacent the upstream end of the filling pipe with a sterilizing medium, such as hydrogen peroxide, interposed between opposed surfaces of the adjacent walls of the boot and web. The filling pipe has a barbed cone attached to its upstream end with which the adjacent walls of the boot and web are pierced so that the sterilized pipe is then positioned within the sterile web of bags without destroying the sterile condition of the pipe or the web.

Abstract: A vertical form, fill and seal packaging machine has a tube former for receiving flexible packaging material in thin flat strip form and juxtaposing opposite longitudinal edge portions thereof in parallel vertically extending relationship to provide a depending tube open at the top. An end sealer provides vertically spaced horizontally extending transverse or end seals across the tube. A product dispenser discharges measured quantities of product into the tube interior through its open upper end. Tube feed means comprises first and second pairs of vertically spaced rolls respectively on opposite external sides of the tube of packaging material and first and second tube feeding belts respectively trained over said pairs of rolls. Inner runs of the belts engage the tube and have vertically extending perforate portions. Vacuum generating means communicate with the perforate portions to cause the belts to grip the tube and back-up means within the tube provide for frictional tube feeding action.

Abstract: An automatic attitude control system is disclosed for a harvester having a crop pickup connected for pivoting about a transverse axis near the forward end of a crop-gathering head. The system automatically raises or lowers the crop-gathering head to maintain the angle between the upper run of the pickup belt or conveyor and the head within preselected angular limits to assure proper feeding of the crop from the pickup to a transverse auger or the like on the head. Two sensors are provided, each with a plurality of reed switches, including a group of parallel "raise" switches and a group of parallel "lower" switches, and a magnetic actuator mounted for relative movement with respect to the switches as the pickup pivots with respect to the head. The sensor switches are connected to a circuit for activating a control valve for the head cylinders to raise the head when one or more of the switches in either of the "raise" groups are closed by the actuator.

Abstract: The tobacco harvester as pulled by a tractor and is adapted to span two rows of tobacco simultaneously, two subframes are pivotally mounted from the main frame of the harvester and each subframe includes a pair of spaced apart flat header boards which are spaced apart so as to allow a row of tobacco plants to pass therebetween. A rotating defoliator blade is mounted above each header board and an adjustable deflector is adjustably mounted above each defoliator blade. A horizontal and vertical conveyor arrangement is disposed between each subframe and an identical conveyor arrangement is disposed along the outer side of each conveyor frame for receiving the tobacco leaves and conveying them rearwardly and upwardly to a transverse conveyor.

Abstract: A safety attachment is provided for use with a rotary lawn mower to prevent substantial injury to anyone whose extremity may accidentally strike the cutter. The attachment includes a relatively large annular disc mounted to the drive shaft of the motor for rotation about a vertical axis and at least one cutter bar mounted diametrically across the disc on the underside thereof. The disc diameter is substantially equal to the length of the cutter bar. In one embodiment slots are provided adjacent to the leading edges of the cutter bar and impellers are provided on the upper side of the disc adjacent the slot fordischarging cut grass through the side of the machine. The combination of the disc and the cutter bar provides good grass cutting action and at the same time greatly reduces the risk of serious injury in the event that one's foot, for example, accidentally slips in under the mower.

Abstract: In the SZ twisting of conductors of electrical cables followed by extrusion of a plastic sheath in the same operation, an untwisting of the reversal points of the twist direction in the area of the cooling section of the extruder is prevented by guiding the extruded sheath immediately behind the extruder in such a manner as to be secured against torsion.

Abstract: Driving mechanism for a calendar watch mechanism including indicia of day and date, a display window and means to advance said day and date indicia to said window, characterized by a calendar wheel which makes one revolution each 24 hours, a drive element on that wheel, a rapid advance member, a cocking element, the rapid advance member being elastically acted on and having a ramp which cooperates with the cocking element to control the rotation of the calendar wheel.

Abstract: This invention relates to a gas turbine system having a gas generator, a power turbine, and a pump driven by said gas generator to provide bearing areas of especially the power turbine with lubricant.

Abstract: A burner for producing exhaust gases that are low in nitrogen oxides, carbon monoxide and unburned hydrocarbons. The burner is divided into a combustion zone and a dilution zone and means are provided for splitting the air input to direct a first stream of air to the combustion zone and a second stream of air to the dilution zone.

Abstract: The commanded rotational speed is compared with the actual rotational speed to produce a deviation signal. This deviation signal is multiplied by a coefficient which is determined by state variables (speed and intake pressure) of the engine and a proportional component plus an integral component of the multiplication product is employed as a control signal. This control signal is checked to make sure that it is outside critical engine states associated with the actual performance of the engine. On this control signal is superposed a signal representing the steady-state fuel flow associated with the commanded rotary speed (or under some circumstances the actual rotary speed) to determine the fuel flow rate to the engine.

Abstract: A gas turbine engine which includes an essentially axial-flow compressor drive turbine having at least one turbine stator and at least one turbine rotor and a reverse-flow annular combustion chamber arranged coaxially with a longitudinal centerline of the gas turbine engine. The turbine stator and turbine rotor are arranged in the gas turbine engine and sized for heat retentivity such that thermal expansion rates of the turbine stator and turbine rotor are substantially equal.

Abstract: A rocket propellant feed system utilizing a bleed turbopump to supercharge a topping turbopump. The bleed turbopump is of a low pressure type to meet the cavitation requirements imposed by the propellant storage tanks. The topping turbopump is of a high pressure type and develops 60 to 70 percent of the pressure rise in the propellant.

Abstract: The specification discloses a hydraulic pressure operated emergency hand tool of the type in which manual pressure exerted on an all position small-area pump piston creates a hydraulic pressure which is communicated to a power cylinder for activating a plural jaw tool member, such as a pair of cutter blades. The jaw members are pivoted together intermediate their ends and one end of each is pivotally connected one to the power cylinder opposite the free end of the piston and the other to the free end of the piston. A release valve provides instant return displacement of hydraulic medium via a by-pass communication from the cylinder to the reservoir to relieve the activating pressure on the cutter blade and restore it promptly to normal position. Interchangeable tool members are provided.

Abstract: A solar thermal electric power system, in which a solar collector, a heat storage vessel filled with a thermal storage material adapted to effect a phase change between solid and liquid internally, a turbine, a condenser, a condensate storage tank, a feed water pump are connected in a closed loop by suitable conduits. A first control valve is provided en route between the solar collector and a heat storage vessel. An steam accumulator filled with water is connected via a second control valve in a pipe route between the solar collector and the first control valve, as well as to a pipe route between the first control valve and the heat storage vessel via a third control valve. The temperature of a fluid flowing out of the solar collector is detected, and when the temperature detected is to be lower than a set temperature, then the first control valve is controlled so as to be closed, while the second control valve is opened.

Abstract: A motor is provided of the piston or diaphragm type in which vacuum is constantly applied to one side of a piston or the like and air under pressure is constantly applied to the opposite side to drive the piston through a stroke. The vacuum and pressurized air may be obtained from sources outside the motor. A valve mechanism driven by the motor reverses the application of vacuum and air pressure when the piston reaches each end of its stroke so that power is continuously applied to both sides of the piston during both forward and reverse movement thereof. Different pistons are arranged out of phase with one another to provide a smooth flow of mechanical power. In one version, the motor drives an air pump having a vacuum inlet and an air pressure outlet, and by connecting such inlet and outlet to the valve mechanism, the motor will drive a load as well as itself. In another version, the motor has an internal combustion apparatus incorporated therewith.

Abstract: In an absorption refrigeration system comprising a generator, a condenser, an evaporator, an absorber and a heat exchanger, a compressor is provided to improve generator output and performance. The compressor is operative between the evaporator and the absorber or between the generator and condenser to improve the output of the absorption cycle and is valved and connected to provide a vapor compression cycle using the condenser and evaporator of the absorption refrigeration system. A compressor may also be used with a second condenser and a second evaporator to heat or cool the generator or evaporator, respectively, of the absorption refrigeration system.