Abstract: A mesa structure field effect transistor includes a semiconductor body with at least one mesa formed on a major surface and an insulating layer on the mesa and overhanging the mesa. Doped regions in the side walls of the mesa define the channel region and source of the transistor, and the semiconductor body defines and drain region. Preferential etching techniques are employed in forming the mesas and the overhanging insulator. The overhanging insulator is employed as a shadow mask in fabricating the transistor.

Abstract: A multicolor or other multilevel infrared detector comprises at least one first detector element formed in a first portion of a lower body, e.g. of cadmium mercury telluride. At least one second detector element, having different detector characteristics, is formed in an upper body, e.g. of cadmium mercury telluride. The lower body is divided, preferably by ion etching into at least two (and more usually three or more) portions separated from each other by gaps. The gaps in the lower body are bridged by the upper body. Electrical connections to the second detector elements comprises the separate portions of the lower body. The electrical connections include metallization layers extending from the top to the substrate on which the lower body is mounted. The substrate may be of insulating material, e.g. sapphire, or it may be for example a silicon CCD for processing signals from the detector elements.

Abstract: The invention relates to a two step method of manufacturing a magnetically switchable magneto-optic element comprising compressed bismuth-containing garnet film of low anisotropy field value deposited on a monocrystalline gadolinium garnet substrate. The first step involves growing a compressed bismuth-containing garnet film having a growth and strain induced effective anisotropy field of about 3000 gauss or less on a monocrystalline gadolinium garnet substrate. The second step involves reducing the anisotropy field of the resulting garnet film to a predetermined lower anisotropy field by ion implantation.

Abstract: A method of forming electric conductive patterns comprising the steps of forming first conductive patterns on a semiconductor substrate directly or through an insulating layer with first insulating film being formed thereon, selectively forming second conductive patterns, forming insulation layers on side surfaces of said second conductive patterns, thereby electrically insulating said second conductive patterns from said first conductive patterns through said insulation layers in a self-aligned manner. An semiconductor device having electric conductive patterns formed by above-mentioned method.

Abstract: A method of making a rotor for a dynamoelectric machine comprises the steps of forming a plurality of flux ring segments of flux conducting material. Segments of magnetizable material are then secured to each of the flux ring segments to form a ring-segment magnetizable material subassembly. A plurality of subassemblies are situated in a cylindrically shaped molding ring, with the magnetizable material adjacent to the inside walls of the molding ring. A shaft is situated in the molding ring along the axis of the cylindrical molding ring. A plastic material is molded around the shaft and inside the ring-segment-magnetizable material subassemblies whereby the outermost surfaces of the magnet material define a cylinder.

Abstract: A method and associated fixture for magnetically attracting and holding back-bar to respective magnetic core-leg portions of a typical magnetic slider assembly. A plurality of embodiments constructed in accordance with different fabrication techniques are described.

Abstract: Method and apparatus for inserting the heating cable into the shell of an electric blanket, including a plurality of slotted tubes which are inserted to guide a flexible leader which draws the cable successively through each of the adjacent channels in the shell.

Abstract: The plate (10) comprises a matrix or binder resin phase (12) in which is dispersed particulate, conductive tin oxide such as tin oxide coated glass fibers (14). A monopolar plate (11) is prepared by coating a layer (18) of electrolytically active material onto a surface of the plate (10). Tin oxide is prevented from reduction by coating a surface of the plate (10) with a conductive, impervious layer resistant to reduction such as a thin film (22) of lead adhered to the plate with a layer (21) of conductive adhesive. The plate (10) can be formed by casting a molten dispersion from mixer (36) onto a sheet (30) of lead foil or by passing an assembly of a sheet (41) of resin, a sheet (43) of fiberglass and a sheet (45) of lead between the nip of heated rollers (48, 50).

Abstract: An interactive system (10) for facilitating assembly of fuel rods into nuclear fuel assemblies having specific grid location requirements for the fuel rods, includes an operator work station (12) adapted for positioning between a supply of fuel rods and a fuel assembly loading magazine (22). Identifying data with each fuel rod is read by the operator with a manual scanner (24) for input and comparison by a computer (28) with the stored data for the particular fuel assembly to be assembled. The proper grid location for the fuel rod is then displayed on a screen (32) prompting the operator to insert the rod through a prompter/detector apparatus (36) mounted on one end of the magazine. In the preferred embodiment, the apparatus (36) includes a pair of motorized, slotted guide bars (54, 56) controlled by the computer (28) to intersect over the proper grid location for the particular fuel rod type.

Abstract: The invention relates to a plug-in and pulling tool for the purpose of plugging-in or pulling an uppermost printed circuit board in a printed conductor stack which is formed through a combination of printed circuit boards, provided on the upper and lower side with one-half each of two-part plug-in connections, whereby each printed circuit board contains a keyhole-shaped recess on both lateral sides of the plug-in connector halves. The plug-in and pulling tool consists of a hollow cylindrical exterior part with a surrounding groove, corresponding to a printed circuit board thickness, formed at a height less than a printed circuit board spacing, and a push rod, whose push rod bar is guided in a mobile fashion in the interior of the hollow cylindrical exterior part in the direction of the longitudinal axis, and whose push rod plate corresponds in its diameter to the outer diameter of the exterior part.

Abstract: An apparatus for automatically manufacturing a bidirectionally openable slide fastener includes a pin attachment unit for attaching a pin to an end of one of a pair of slide fastener stringers, a pair of first and second slider attachment units for attaching first and second sliders, respectively, to the stringers, and a box pin attachment unit for attaching a box pin to an end of the other slide fastener stringer. The slide fastener stringers are fed by a gripper mechanism along a feed path as the pin, the sliders, and the box pin are successively attached to the slide fastener stringers. Finally, the slide fastener stringers are cut off by a cutter unit into a bidirectionally openable slide fastener of a desired length.

Abstract: A method and apparatus are disclosed for adapting a variable center distance electronic component insertion machine to form and insert the leads of components into particularly closed spaced mounting holes of a circuit board.

Abstract: A method of producing a strip adapted for use as an electrical contact terminal comprising the following steps. First, a strip of relatively flexible substrate material is provided. Then, a substantially continuous strip of powdered metal or metal alloy is deposited onto a surface of the strip to produce the electrical contact terminal.

Abstract: A method for solid phase welding gold to electrical contact terminals is disclosed. The contact zones of the terminals are moved past and held against a rotating cylinder that has gold electrolytically deposited thereon. The gold is transferred from the cylinder to the contact zones of the terminals by friction welding. The deposited gold is also described.

Abstract: This invention is a shaving implement that includes a main body member attachable to a replaceable container of shaving cream, a brush mounted on the main body member for receiving shaving cream from the container, and a safety razor mounted on a yoke pivoted on the main body member.

Abstract: A device for grasping and handling generally cylinder sector shaped articles such as pieces of cake or the like, comprises two blade parts (1, 2) and a grip (8, 9) located at one end of these blades. The two blade parts (1, 2) are pivotably connected with each other by means of a hinge (4) located at that end of the blade parts which is opposite to the grip (8, 9).

Abstract: The cheese knife is constructed with a rectangular frame having four blades with cutting edges on the bottom and with a pair of crossing blades within the frame having cutting edges on the bottom. In one pass through a cheese block, the block can be cut in half while four equal-sized pieces are simultaneously cut from one of the halves of the block. In a second pass, the remaining half of the cheese block can be cut into four equal-sized pieces.The knife has a pair of handles which are curved to avoid injury to the user's knuckles during use.

Abstract: A cast cutter having a pair of juxtaposed, sawedged blades which oscillate relative to each other on a common pivot point to provide a scissorslike cutting action resulting in a relatively wide kerf in the cast being out. A patient protective blade guard, slidable between the underside of the cast and the patient's skin, includes an aperture into which portions of the blades partially extend wherein a nip area is provided at an interface location of the blades and the guard to facilitate cutting of an inner woven cloth lining of the cast to the scissor teeth. The oscillatory motion of the blades relative to each other minimizes clogging thereof by dust particles generated during a cutting operation. The blades are slightly spaced from each other to preclude friction generated heat buildup that could result from the moving blades rubbing together.

Abstract: A safety device for a chain saw conventional in its overall construction is disclosed which comprises mainly a brake lever pivotally supported by the housing of the chain saw and arranged to stop the cutting chain when the brake lever is actuated either by inertia or by engagement with the operator's hand. The brake lever is formed with a cam surface adapted to press an engaging member connected to the drive shaft out of meshing engagement with an interlocking wheel for driving the cutting chain so as to shut off the driving power to be transmitted to the interlocking wheel. The brake lever also includes a braking member secured thereto and adapted for movement therewith in synchronism with the arcuate movement of the cam surface, into frictional braking engagement with the interlocking wheel for effecting a brake effect on the cutting chain.

Abstract: A length-measuring attachment for a chain saw includes a clamp assembly for mounting a transversely-extending measuring arm to the chain saw handle. A slidably mounted resilient index pointer is connected to the arm for marking the appropriate length of a piece of wood to be cut. The resilient pointer flexes enabling cuts to be made at any point along the piece of wood and serves to indicate proper plane of cut as well as proper length.

Abstract: Measuring apparatus for determining the position of a point in a measuring volume relative to a datum point at which three mutually perpendicular axes intersect, includes a probe member supported for movement within that volume. Errors due to rotations about the various axes are corrected by providing additional transducers on each axis, there being (n+1) transducers where n is the number of rotations for which correction is required. The embodiments described have three X-axis transducers X.sub.1, X.sub.2 and X.sub.3 and three Y-axis transducers Y.sub.1, Y.sub.2 and Y.sub.3 which, with the appropriate circuitry correct for pitch and yaw errors about the two axes. For the Z-axis only two transducers, Z.sub.1 and Z.sub.2, are required. The circuit means combines the various transducer outputs to derive corrected values of the three co-ordinates.

Abstract: A graphics protractor (10) for placement on a computer display screen (52) to determine direction changes for graphics commands has a circular ring (12) bearing indicia (14) representing relative angles with respect to a point (16) of origin on the ring (12). First and second sheets (18,20) through which display screen (52) is visible are rotatable with respect to the ring (12). The sheets (18,20) each have a straight line (44) movable into and out of registration with respect to the straight line (44) of the other sheet (20,18) by rotation of the sheets (18,20) within the ring (12). The sheets (18,20) have a graphics symbol (28) centrally located with respect to the ring (12), which is placed over a corresponding graphics symbol (50) on the computer display screen (52) to use the protractor (10).

Abstract: The invention concerns a drawing or engraving device which has a first trlling carriage system with a first and second guide rail each supporting a moving travelling carriage. The second guide rail is attached to the travelling carriage on the first guide rail. A second travelling carriage system is joined to the first travelling carriage system and has two travelling carriages driven by motors. One of these travelling carriages supports a working head which can be manually guided. The coordinates of the actual pattern executed by the working head are determined by means of a distance measuring device. Computing means compare these actual coordinates with coordinates of a selected pattern through which the working head should travel to draw an element or line segment selected by the user. A control device is activated by the computer which calculates any deviation of the actual pattern coordinates from the selected pattern coordinates.

Abstract: An apparatus for detecting a rotation of, for example, an automotive steering wheel has comprises a rotary plate fixed to a shaft and rotatable in accordance with a rotation of the steering wheel, an electric circuit for detecting a rotation of the rotary plate; a rotary member rotatable in accordance with a rotation of the shaft; a first opening for detecting a reference position signal provided in the rotary plate, a second opening for detecting a reference position signal provided in the rotary member, a reduction gear mechanism for reducing the rotational speed of the rotary member such as to allow the first and second signal detecting openings to be aligned with each other once in a plurality of rotations of the shaft, and photo electro transducers for detecting a reference position disposed in a line passing through the first and second signal detecting openings.

Abstract: An apparatus and method is provided for measuring the wear in the cross-sectional profile of a railroad rail. A carriage is adapted for travel along the length of the rail and includes means for moving transversely with respect to its direction of travel in response to wear in the railhead of the rail. Distance sensors fixedly mounted to the carriage sense the changes in distances from the carriage to the rail as the carriage moves in a direction transverse to the direction of travel. The sensors relate the changes in these distances to wear in the top and gauge sides of the railhead.

Abstract: A measuring head comprises an integral member defining a support portion, a plurality of fulcrums and a corresponding plurality of movable arms carrying feelers. The fulcrums are aligned for defining a single axis of rotation for the movable arms. Position transducers electrically detect the positions of the movable arms. Two measuring heads are employed for realizing a snap gauge for simultaneously checking a plurality of diameters.

Abstract: A welding gauge for an insert ring on the end of a pipe with a first slide member defining a pipe engaging gauging surface and with a second slide member slidably mounted on a first slide member along a path perpendicular to the path of the gauging surface. The second slide member has a ring engaging recess which projects out over the gauging surface to hold the welding ring in place on the end of a pipe. The slide members can be locked together in any position for adjustment.

Abstract: A stud spacer for construction work comprising a rigid support to which spacers are fixed at longitudinally-spaced intervals corresponding to the distance between studs to hold the latter at the desired spacing while the studs are being secured.

Abstract: Clearance measuring apparatus for measuring the amount of clearance formed between circumferential edges of a component part and a component part assembling portion of a product main body used with a set jig holding the component part. A stationary claw is fixed to the set jig and is arranged to be arranged to be brought into engagement with the edge of the part. A movable claw is mounted to be movable in a clearance measuring direction and is arranged to be brought into engagement with the edge of the assembling portion. A detecting device is provided for detecting the amount of displacement of the movable claw in relation to the stationary claw.

Abstract: A probe of the type having a movable stylus for detecting contact with an object is disclosed. The stylus is connected to a movable member which is held in its rest position by means of a spring. The movable member is provided with a bore therein to which the stylus is removably connected. The bore extends into the interior of the probe housing and provides access to the spring for adjusting the pressure on the movable member when the stylus is removed.

Abstract: Apparatus for determining the diameter of an unprocessed ophthalmic lens to fit a particular eyeglass frame comprises a base and a guide on the base adapted to receive a card carrying diagrams of available lenses. A support on the base is adapted to receive the eyeglass frame to be fitted with lenses. The card guide is fixed relative to the base and comprises an elongate slot adapted to allow the card to slide within it. The frame support is mobile relative to the card guide in the direction at right angles to the slot.

Abstract: The wheel alignment checking apparatus for use on a pair of wheels on a motor vehicle uses gage disks adapted to be secured to the wheels to be examined, a transverse support yoke, measuring plates mounted perpendicularly thereon and at least one angle measuring device mounted on one plate, for example by way of magnetic probes, so that one end of the device is on the plate and a head of the device engages the respective gage disk and any angle between the plane of the disk and of the adjacent plate is converted by a rotary potentiometer, for example, into a signal which may be read directly or after offsetting against other signals in a known way.

Abstract: A sighting device to be used on compound bows includes a mounting plate and a sight assembly. The mounting plate is fastened to a bow belly side with a portion extending beyond the bow front to receive the sight assembly. The sight assembly has a rod, a sleeve, and a wire rod sight with two peep holes. The sight is transversely mounted through the rod and sleeve, the rod journalled through the sleeve. The rod is rotatably retained in the mounting plate and as the rod rotates, the sight pivots to provide both gross and fine sight adjustment.

Abstract: An archery bow sighting device is disclosed which includes a body member as well as a vertical adjustment block and a longitudinal adjustment arm and a lateral adjustment bar which, as interconnected and interlocked with respect to one another, provide three complete degrees of freedom of a grouping of preset pin blocks each carrying pins to allow sighting for facilitating archery accuracy. The interlocking adjustment members are each selectively capable of being fixedly secured to prevent adjustment of any one, two or three degrees of freedom of movement. The sighting pins themselves are individually adjustable such that when the relative spacing between each sighting pin is finally achieved, they can be moved as a group, vertically, laterally, or longitudinally thereby preventing the necessity of adjusting each and every individual pin position when the archery conditions change such as a variation in wind, lighting, or other indeterminable factors.

Abstract: A bow sight 10 is adapted for use with an archery bow 14 provide targeting accuracy. The bow sight 10 includes a frame portion 18 having channels 26 at the outer edges thereof adapted to secure the bow sight 10 between strands of the bow string. The frame portion 18 also has a relatively large open central area 20. Front and rear inserts 30, 32 integrally molded within the frame portion to provide strength and rigidity to the bow sight 10, and have relatively large central apertures 34, 36 extending therethrough. The large open central area 20 of the frame portion 18 and the large central apertures 34, 36 of the front and rear inserts together define a composite window 38 through which the archer may view the target. An aiming dot 40 is secured by means of arms 42 within the central portion of the composite window to provide an aiming point within the archer's line of vision.

Abstract: A bar for measuring angles of inclination from the vertical and horizontal. The angles of inclination are indicated by either sight, sound, or feel or combinations thereof. Light emitting diodes and photo transistors are positioned on opposite sides of a sealed tube containing an opaque or clear liquid whereby the absence of light or the amplification of light intensity at the photo transistor senses an angle of inclination. Either multiple pairs of light emitting diodes and photo transistors are utilized for sensing a plurality of different angles of inclination or a single light emitting diode with a plurality of fiber optic cables leading therefrom with the ends of each opposing, a separate photo transistor. Visual indication of angles of inclination are provided by light emitting diodes associated with each photo transistor or other digital readout indicators, the sound is provided by a buzzer or the like and the feel is provided by a vibrator.

Abstract: Apparatus for Levelling a surface, such as a table, includes several bellows containing a fluid connected to the surface, conduits connecting the bellows together and a control valve for connecting or disconnecting the conduits, the control valve being located in a chamber and being separated from an actuator by a diaphragm.

Abstract: This invention is a drafting implement consisting of an interchangeable triangle and interchangeable circular disk carried rotatively on the triangle and both the triangle and circular disk each being imprinted and having measurement and drafting aids to make technical drawings and measurements.

Abstract: A closed loop dynamic alignment fixture which has a pivot plate which is pted to have a rate gyro mounted thereon and a base which is adapted to be mounted on a rate table with means for automatically adjusting the pivot plate relative to the base plate and rate table to allow for the testing of the amount of misalignment of an input axis of the rate gyro that is mounted thereon to allow misalignment data to be gathered on high drift rate gyros.

Abstract: The angle of a hole in a surface with respect to that surface is measured by a ball mounted between a pair of plates, which ball can be located adjacent the hole. A pointer extends through the ball and projects on both sides. One end of the pointer extends into the hole and the other extends to within close proximity of a transparent dome. The angularity of the hole is then read from the pointer adjacent the dome, which pointer will indicate the angularity from indicia on the dome.

Abstract: An improved plumb bob having a downwardly directed light beam to indicate the point directly below the plumb bob. The light is operated by batteries within the plumb bob and, in order to prevent undesired draining of the batteries, the light is switched on and off by the weight of the plumb bob acting on the line. The switch is activated by a conductive spring held within the plumb bob.

Abstract: An apparatus for checking the roundness of parts comprises a basement supporting a motorized spindle for rotating the part to be checked about a horizontal axis, a stanchion fixed to the basement, a control lever and a support element rotatably coupled to the stanchion for rotation about relevant horizontal axes, measuring device coupled to the lever and the support element, and processing device. The measuring device comprises a member vertically suspended to the lever and rotatably coupled to the support element, a Vee device fixed to the member and adapted to be arranged upon the part and two measuring heads with movable feelers adapted to contact diametrically opposed points of the part. The processing device is connected to the measuring heads for providing measurements of the out-of-roundness and of the diameter of the part.

Abstract: A multi-cylinder drying section and method in a paper machine wherein the paper web to be dried is guided into contact with the surfaces of heated drying cylinders wherein the drying fabric is cooled as it travels from one drying cylinder to the next. According to one embodiment, preferably used in the first group or groups of drying cylinders, a single-fabric draw is used wherein the web is supported on the drying fabric as it runs from the cylinders of one line to the cylinders of the other line so that the web is in direct contact with the surfaces of the drying cylinders in one line while the drying fabric is in direct contact with the surfaces of the cylinders in the other line. The drying fabric is cooled as it runs between the cylinders on which the web is in direct contact with the heated surfaces by causing the drying fabric to come into direct contact with a cooling roll or cylinder surface whose contact area is relatively large.

Abstract: A strip cooling apparatus for a continuous annealing furnace for continuously treating longitudinally fed steel strip has a pair of cooling gas chambers attached to the furnace walls on both sides of the strip so that the front of each chamber faces the strip. Each cooling gas chamber has nozzles having round outlets opening toward the strip surface on its front side to shoot forth a cooling gas jet against the strip furnace. The nozzle is separated from the strip by a distance z not larger than 70 mm and projected from the front of the cooling gas chamber by a length of not less than (100--z) z) mm. The cooling apparatus also has a pair of rotatably holding rolls reciprocatably attached to the furnace walls to press the strip at a right angle thereto. The holding rolls holds the strip and prevents the occurrence of fluttering.

Abstract: Apparatus for the drying and sterilizing of fabrics, the apparatus comprising a drier cabinet provided with means for suspending therein fabric articles, and with means for generating, distributing and circulating warm air for drying purposes and hot air for the sterilization of the fabric articles.

Abstract: Apparatus is disclosed for introducing a gas into a porous pack the apparatus comprising gas injection means for introducing a gas into the pack, a conveyor for moving the pack into superimposed position to the gas injection means and for deflecting the gas out of the pack between the gas injection means.

Abstract: The invention relates to an arrangement in cylinder drying, intended for incorporation in a paper machine and including a plurality of heated cylinders (1) arranged substantially parallel in two rows, about which the paper web (2) is taken serpentine during drying, whereat it is carried by an endless porous fourdrinier wire (3) which presses the web against the cylinder surfaces in one row of cylinders and lies between the paper web and the cylinders in the other row. For preventing the web from lifting from the wire as a result of pressure differences on either side thereof, there are blowing boxes (11,12) arranged for blowing out air in at least some of the pockets (4,5) situated on opposite sides of the web, each of said pockets being formed by the web and three cylinders lying consecutively in the travelling direction of the web.

Abstract: A sports shoe having a heel counter with a heel reinforcement wall shaped to include an inner surface which is in conformity with an outer surface of a heel portion of an upper of the sports shoe. An attaching portion is formed to project inwards from a lower end portion of the heel reinforcement wall. A flange portion formed to project outwards from the lower end portion of the heel reinforcement wall is provided in such a manner that the inner surface of the heel reinforcement wall is adhered to the outer surface of the heel portion of the upper. The attaching portion thereof is interposed between and adhered to an inwardly bent portion of the upper portion and a shoe sole. The flange portion thereof is adhered to an upper surface of an outer peripheral edge portion of the shoe sole. In this manner, the heel portion is prevented from rolling during running and the heel counter is prevented from peeling off.

Abstract: A clogging tapping device for attachment on the heel and sole of shoes to hammer out a lively rhythm while square dancing is provided including a base plate member with a sharp turned-up periphery edge and a plurality of holes through the base plate which allows nails to be hammered through to fix the plate to the shoe, a rounded tapping plate member generally a toe sole shape or a heel shape with an attachment device of at least two rivets to loosely attach the tapping plate to allow it to cant and move to strike the base plate and a plurality of holes through the tapping plate, one each aligned over the holes in the base plate but in this case, the hole being of a size to allow the head of the nail to be force fitted through each hole, where the rivets are rounded and set in depressions of the tapping plate to avoid scarring the floors.

Abstract: A digging bucket lip is provided with one or more shrouds, each shroud having a blunt forward portion and a rearward portion divided into two spaced-apart legs. There are apertures through the legs, preferably in alignment. Rings are slidably disposed in the apertures and are welded on their inner margins to the lip disposed between the legs.