Abstract: An improved fishing knife comprises a handle having a substantially planar side surface and a blade, the shank of the blade being coplanar with the planar side of the handle.

Abstract: A scissors-like tool, in particular a hairdressers', householding or tailors' scissors, comprises a movable scissors blade pivotally connected to a stationary scissors blade with a finger bow disposed on the respective stock portions of the blades. At least the finger bow provided at the movable scissors blade is made per se of a resilient synthetic material or similar material, inserted into an outwardly directed fork opening of a fork arranged at the rearward end of the said blade, and mounted easily rotatable in an arcuate groove at the inner side of the fork.

Abstract: A cutter foil comprising a metal plate having apertures separated by partitions, each aperture being defined by a surrounding wall projecting inwardly of the plate, the thickness of the partitions being less than the thickness of the surrounding walls.

Abstract: An instrument for processing artificial teeth and the like, which is utilizable for collecting precious metallic powder shavings produced during the processing of the teeth, and which comprises a handy bowl-like collector and a collector plate for supplementally collecting the powders which have not been caught by the handy bowl-like collector.

Abstract: An improved overdenture structure and a method for securing it to the residual ridge of a patient. The nerve of at least one healthy tooth is removed and the root canal is filled with dental paste as in a root canal treatment. The crown of the tooth is removed near the gum line and a ferromagnetic bar is embedded in the filled root. Magnetic material is embedded in the overdenture in such position as to be aligned with the ferromagnetic bar at closure points. The dental material surrounding the ferromagnetic bar and the magnetic material embedded in the overdenture are shaped so as to provide contoured mating surfaces with one another. In an alternative embodiment, a root canal treatment is performed on two healthy teeth and bars are embedded in the roots of those teeth. A ferromagnetic rod is connected between the ends of the two bars. Magnetic material is embedded in the overdenture in position to be aligned with the entire length of the ferromagnetic rod.

Abstract: A prosthetic preform comprised of a hard base into which are molded the posterior prosthetic teeth, with the anterior prosthetic teeth being mounted in a waxy material contained in a cavity or cavities disposed in the hard base. The preform is further provided with a formable deflectable layer secured to the hard base structure and adapted to be fit to the general contours of the wearer's mouth with an impression material used to line the tissue surface of the deflectable layer to obtain an impression of the intimate detail of the edentulous tissue. The anterior teeth may thus be adjusted in position during fitting and/or anatomical features carved. A mold is made of the anterior teeth and exposed waxy material after fitting which allows casting the fitted anterior teeth in hard base material to the remainder of the hard base structure.

Abstract: A buccal tube device has a body attached to a tooth band. The body contains at least one channel with a non-circular cross-section. The channel is formed in the body by an electroerosion process. In a preferred form, the channel cross-section is four cornered and is inclined. The invention also includes a process for forming such buccal tubes by providing an electroerosion electrode with a non-circular cross-section and using it to form a channel of corresponding cross-section. The electroerosion process may include flushing the channel thus formed during the electroerosion.

Abstract: An apparatus for and method of forming accurate hinge axis tooth positioners prepares models of the upper and lower teeth of a patient with the teeth relocated to predetermined positions, takes an interocclusal record of the prepared models mounted on an articulator in the occlusal position but spaced apart the thickness of the tooth positioner material, duplicates the models and mounts them on a correlator in indexed engagement with the interocclusal record, removes the interocclusal record from between the duplicated models and substitutes therein a resilient deformable material, returns the duplicated models to the established interocclusal record position to form impressions of the teeth in the material, and cures the material through the application of heat.

Abstract: A miniature motor for driving a hand-held instrument such as a dental handpiece, the motor having at one end a connecting member for supplying coolant to a motor coolant line and motive energy to the motor, and at the other end a coupling member to which a hand-held instrument can be releasably connected. An intermediate coolant line in the coupling member serves to transfer coolant from the motor coolant line to a coolant supply line in the instrument which directs the coolant to a working implement at one end of the instrument. The coolant line in the motor comprises a tubular member which is removably mounted in the motor and has a releasable connection at its inlet end to a coolant supply connector in the connecting member, and a releasable connection at its outlet end to the intermediate coolant line in the coupling member. At least one of these releasable connections is provided in a closure member which is removable in order to render the tubular member accessible for servicing.

Abstract: A dental handpiece comprises two sections, notably in the case of a contra-angle, which are rigidly assembled and both provided with an aligned passage for delivering the liquid to be atomized to the head of the handpiece, said passage being incorporated in the wall of each section and the joint between the two sections comprises an annular seal fitted in a recess surrounding the passage and formed in one section, the length of this seal being slightly greater than the depth of the recess, so that the outer edge of the seal tightly engages the registering face formed in the other section, this arrangement being adaptable to all dental handpieces provided with internal passage means for the liquid intended for cooling the tool.

Abstract: A device for blowing powder onto teeth, the device consisting of a handpiece in the form of a housing connected to a compressed air source and having a discharge nozzle member which can be inserted in a patient's mouth and can be directed towards the patient's teeth. The housing has a powder reservoir with a bottom supply duct. An apertured shuttle bar is reciprocably slidably mounted beneath said duct and has a metering hole registrable with said supply duct and then, by longitudinally moving the bar, with a discharge conduit arranged to receive compressed air from the source so as to discharge a metered amount of powder in said hole into the nozzle member for delivery to the patient's teeth.

Abstract: An orthodontic tool for placing and measuring bends or twists in orthodontic arch wires, or the like, in order to place potential torquing forces in the wire, comprises first and second engaging means for engaging an elongated wire on respective opposite surfaces of the wire, one of the engaging means carrying an indicator member with a scale thereon and the other of the engaging means carrying a pointer. When the two engaging means are placed together and twisted around the arch wire, the pointer will indicate the exact degree of twist being placed in the wire on the indicating scale. The engaging means may comprise pliers, keyed members, or the like. Preferably, the scale is interposed between the engaging means to provide a bending space between the engaging means to prevent weakening of the wire when it is twisted. Also disclosed is a tool for bending orthodontic arch wires to provide second order bends.

Abstract: A system in which a plurality of members or guides are applied in sequence and utilized in combination for aiding in the selection and/or modification of the paper patterns used for making garments. The system includes shoulder seam defining members, a back pattern size indicating member, and shoulder slope indicating members, all of which are used to establish those dimensions and relationships found to be critical in such selection and/or modification of garment patterns.

Abstract: A multipurpose drafting and measuring instrument having an upright marking device mounted on a base or main frame readily maneuverable over sheet material. Mounted on the instrument main frame are one or more signal generators each having a roller in frictional driving contact with the sheet material and with their axes normal to one another and to a respective peripheral edge of the instrument base. The signal generators are connected to respective digital display panels each having a manually settable scale changer. Any of a variety of marking devices can be substituted for one another. The instrument includes various readily attached accessories for utilizing the instrument as an Y, X digitizer, a protractor, a planimeter, and both as a linear and a circular scale graduator.

Abstract: An apparatus is disclosed for determining the position of one of a pair of linearly displaceable members relative to the other, including a scale secured to one member parallel with the axis of linear displacement, and an electrooptical scanning head connected with the other member for pivotal movement about an axis transverse to the axis of linear displacement. The scanning head is spring-biased toward engagement with the scale, whereby the scanning head is pivoted in accordance with the configuration of the correction ruler.

Abstract: An apparatus for measuring the roundness and waviness of workpiece surfaces comprises a first peak-to-peak detector for detecting the absolute peak-to-peak value of the sum of a signal representative of the roundness error of the workpiece and a signal representative of the eccentric center of the workpiece. A low-pass filter passes only the low frequency eccentricity signal which is applied to a second peak-to-peak detector for detecting the absolute peak-to-peak value thereof. The outputs from both detecting devices are fed to an arithmetic means for effecting subtraction of the absolute value of the output signal from the second peak-to-peak detector from that of the first peak-to-peak detector thereby obtaining a signal representative of the peak or maximum amount of waviness of the workpiece surface at or near the point of maximum eccentricity error and unaffected by any eccentricity error.

Abstract: A master star gear, or rotor, for testing the dimensions of an internal toothed ring gear, or stator, of a gerotor hydraulic mechanism is provided by truncation of the teeth of a mating star gear rotor so that the center-to-center variation that occurs between the centers of the ring gear and the star gear along a line may be detected and measured in order to measure the magnitude of the manufacturing errors that are present in the ring gear. The ring gear is held in place on a rotating support member by a friction fit against flats on an arbor of the support member.

Abstract: A thread gaging tool having a clamp member for rigidly clamping to a pipe end includes an axially sliding assembly coupled to a linear computer input transducer and supporting a pivoted arm provided with a gage pin which is inserted into the pipe thread to precisely measure the distance of each thread wall from the pipe end.

Abstract: A railway surveying apparatus is disclosed. The apparatus has a light beam transmitter for transmitting a beam along the track, a light beam receiver and an intermediate shadow board all mounted on respective rail-engaging buggies so that the transmitter, receiver and board are located on the center line of the track. The shadow board and receiver buggies are connected through a twist transducer that measures the relative angular positions of the buggies. A pendulum is mounted on the receiver buggy and serves to measure the actual rail cross level condition at that point. A pendulum on the transmitter buggy and appropriate circuitry can reference the apparatus to either the track center line or one of the rails.

Abstract: A compass is provided with a course indicated pointer, rotatable about the same center as the compass card, and frictionally engaging the same. A mechanism, including a finger for catching the pointer, is provided for adjusting the pointer to any selected position, and, while doing so, braking the card so the action of the finger overrules the frictional engagement between the finger and the card.

Abstract: The dryer drum is provided with header pipes which are rotatable about their axes so that the scavenging pipes can be serviced from within the shell of the drum. The drain pipes are detachable from the header pipes and the drain line to permit rotation of the header pipes. Radial tie rods and U-shaped brackets support the header pipes on the steam drum within the shell.

Abstract: In a stationary upright cylindrically shaped container, organic waste materials are passed downwardly from an upper inlet opening to a lower outlet opening. At the same time air is passed in counterflow upwardly through the downwardly flowing body of waste materials being converted into compost. The air supply means at the lower end of the container are divided into sector-shaped parts, and the compost is conveyed to the outlet opening from each of the sectors of the body so that the moisture content of the material leaving each sector can be checked. Air is introduced, in turn, into the lower end of each sector within the container. The amount of air introduced into each sector is regulated in accordance with the moisture content of the material discharged from that sector.

Abstract: A visual aid for broadcasted golf games consists of a three-dimensional relief map of holes on real golf courses. The map is imprinted with vertical and horizontal grid lines and coordinates. Grid locations of played ball positions are broadcasted so that the broadcast audience can chart play on the map. The map is provided with scaled, punch-out trees and other obstacles which, in conjunction with the contours of the map, convey to an observer spatial information about the layout and obstacles of particular golf holes.

Abstract: A model for representing nucleic acid molecules, such as deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) consists of a plurality of helical segments secured together in end to end relation in the form of one or two helixes comprising the molecular backbone. Each of the helical segments is proportioned in length and helical curvature to be a model of the backbone units of the DNA and RNA molecules. Each unit has a flat planar member extending from the mid portion thereof which has a shape corresponding to one of the bases found in each of the separate nucleotides. Means are provided for securing the bases on opposing nucleotides together to hold a pair of helical molecular backbones together, with the helical segments and planar members illustrating the size, proportions, and relationship in the molecule in the various nucleotides.

Abstract: A shoe for sprinters, middle distance and distance runners incorporating sharp spikes or like traction devices under the toe portion and raised cushion cleats under the heel portion for maintaining the heel in an elevated position for a good running posture and to provide cushioning as well as traction during heel contact. Also, the elevated heel portion reduces excess strain on the Achilles' tendon of the middle distance and long distance runners.

Abstract: A motorcycle boot includes a lower vamp shell having a front tongue and rear tapering flaps which extend into an upper shell assembly formed by a hinged front door and a rear cuff. The door, of impact resistant plastic to protect the wearer's shin, interleaves with the cuff and is closed by overlying flexible straps. A closure system includes wire bales, longitudinally adjustable within holes spaced along the straps, and received with toothed latched receivers. The side legs of each wire bale snap-fits under locking flanges when the bale is closed over center. A connector hinge assembly includes a slotted plate, attached to the vamp shell, through which extends a freely movable pivot pin journalled in the upper shell to allow forward and rearward motion, rockable sideways motion, and lateral twisting of the shells. A replaceable sole insert, formed by a resilient pad molded to a carrier plate, is mechanically locked within a base recess on the bottom of the shell.

Abstract: An ejection tube assembly for a snowblower, wherein the assembly comprises a bottom tube section and an upper tube section which are telescopically extendible and retractable one in the other to form an ejection tube of sufficient height to load the present-day trucks and of reducible height to enter in a conventional garage. This ejection tube assembly includes a support, the ejection tube extending endwise upright on this support, a slender casing upwardly extending lengthwise, having an open bottom, and laterally fixed to the upper tube section for displacement therewith, a hydraulic cylinder engaged in the slender casing and fixed at the lower end to the support and guide rods fixed to the slender casing, longitudinally extending lengthwise thereof, and slidable in guiding sleeves fixed to the support.

Abstract: A reusable badge is assembled by snapping a flanged concavo-convex lens of resilient sheet plastic material over the edge of a stiff but resilient backing plate with display material between them. The display material can be from a large sheet and sheared to size by the lens flange and backing plate as they are assembled. A press for assembling the components has an anvil with a centering boss that engages a hole in a clip secured to the backing plate. A hammer member presses the lens downwardly to snap its flange over the edge of the backing plate while flexing the edge of the backing plate slightly.

Abstract: A U-shaped holder made of a light flexible material having grooves in the inside walls and bottom thereof forming a slot to receive an automobile registration card or plate. Affixed to one face of the holder is a layer of flexible material coated with a pressure sensitive adhesive to facilitate securing the holder to the windshield of an automobile.

Abstract: A name plate assembly having invisible locking means requiring the use of an externally applied magnet.The name plate assembly includes the use of a base member having one or more dovetailed type rails on one face and a game plate having corresponding dovetail recesses for slidingly engaging with the rails of the base member. Mounted on the base member is a first magnet means which normally engage with the name plate to hold the name plate locked securely on the base member. The magnet means can only be disengaged from the name plate by the application to the assembly of a second magnet means withdrawing the first magnet means from locking engagement with the name plate.

Abstract: A combination mirror and display device for displaying photographs and the like. The device comprises a display unit reversably mounted on a rigid planar support member adapted to sit on a desk, credenza, dressing table or the like in a free standing configuration. Magnetic strips hold the display unit securely in position on the support member. When the display unit is positioned on the support member with the photograph side facing outwardly the unit appears to be a conventional picture frame. Due to its unique design, however, the display unit can readily be reversed so that the device can conveniently be used as a free standing mirror.

Abstract: An implement-display card combination, comprising an implement, such as a brush or a scoop, with a body and a generally flat handle extending laterally therefrom, such handle having two opposite sides with edge portions therebetween formed with edgewise projections, a display card made of flexible sheet material and wrapped around the handle, such display card having a first panel adjacent one side of the handle, plus second and third panels connected to the first panel by folds and folded around the handle into superimposed relation adjcent the opposite side of the handle, such display card having openings therein disposed along the folds and receiving the edgewise projections on the handle to retain in the display card on the handle, and means such as adhesive material for securing the second and third panels together in superimposed relation. The illustrated display card has a foldable tab extending into a hanger hole in the handle.

Abstract: In a preferred embodiment, a fishing line has a weight attached to a lower end thereof, with the upper end of the line typically attached to a pole or rod & reel operatively, and the line has snapped thereonto a slip-ring slidable down the length of the line from the upper end of the line to the weighted end in the water in use, and with a leader and hook with bait suspended from the slip-ring, the slip-ring being of a size sufficiently small that it does not slip-over the weight.

Abstract: Disclosed herein is a live bait well for a fishing vessel which occupies normally unusable space on the stern by being conveniently located beneath the main fisherman's chair. The bait well is comprised of a circular tub body with a segmented closable see-through top and having a concentric sleeve passing through the tub body to define an annular water compartment so that the entire assembly can be set in place to encircle the upright fisherman's chair support pedestal which is secured to the deck. Sea water is fed into the bottom of the tub body from remotely located pumps located in the machinery space below the main deck. The sea water is fed into the tub body in such a fashion that a unidirectional current is established in a circular pattern between the sleeve and the outer tub body wall.

Abstract: Disclosed is a padded jaw animal trap with improved holding power in order to retain an animal caught in the trap. The padding of each jaw has a face with a concave geometrical arrangement such that when an animal is caught in the trap, the face deforms to a nearly planar surface forcing ridges of flesh on either side of the face. It is this ridge of flesh which increases the holding power of the padded jaw trap over the prior art.

Abstract: A comb-like gate structure having a plurality of resiliently bendable tines is affixed adjacent a constricted opening at the inner end of an inwardly convergent entry tunnel to prevent escape of crabs once they have entered the trap enclosure through such opening. The trap is of the type in which the entry tunnel is formed by netting stretched between a large entranceway in a side of the enclosure and the constricted opening formed by a rigid hoop that is disposed interiorally of the enclosure and is spaced above the bottom, and below the top, of the enclosure and is oriented so as to open generally upwardly, in facing relation to the top of the enclosure. The gate structure is attached to that segment of the hoop which secures the top portion of the tunnel netting and the tines of the gate structure are oriented to project generally horizontally across and somewhat above the opening formed by the hoop.

Abstract: A plate like member, having a plurality of apertures therethrough, carries a reservoir having a removal closure member with a lifting rotor. Bubble forming solution is held in the reservoir. The device is propelled into rotating flight. During flight, the rotor lifts the closure member from the reservoir, freeing the solution which is distributed by centrifugal force as a film on the upper surface of the plate like member and over the apertures. Bubbles are produced in response to air passing through the apertures and the film of bubble producing solution.

Abstract: A toy block shipbuilding kit, with specially formed pieces to provide realistic ships stems and sterns. A number of first blocks are provided with curved sides, and interlocking projections and projection-receiving portions formed on the top and bottom faces. When stacked upon each other, the blocks are staggered and form a continuous upwardly sloping stem or stern portion, and can interlock with other conventional parallelepiped blocks to form the ship body. Specialty second blocks are provided for forming the top or bottom terminations of stacked first blocks, and specialty third blocks may be provided having sides extending above the top faces thereof to constitute side rails for a ship's stem and stern.

Abstract: A damage-free actuating mechanism for an action toy of the type in which an object is reciprocally moved between retracted and extended positions in response to the rotation of a pair of wheels. The actuating mechanism comprises a crankshaft secured to a pair of wheels, and a pivotal lever coupling the crank of the crankshaft to the object. Accordingly, normal rotation of the wheels and crankshaft imparts reciprocal movement to the object between retracted and extended positions. A fulcrum of the actuating mechanism is provided in engagement with one portion of the lever, and a resilient member biases the one portion of the lever into engagement with the fulcrum during normal rotation of the wheels and crankshaft. The resilient member further allows the one portion of the lever to move away from the fulcrum in those situations in which the object is manually pushed from its extended position to its retracted position while the wheels and crankshaft are stationary.

Abstract: The disclosure is of a plant-growing device comprising a container of which the lower part forms a water reservoir with a sight-glass, a plate covering the reservoir and supporting a mass of rooting medium, and a water-supply channel for the introduction of water to the reservoir, the plate being foraminous for the aeration of the rooting medium and penetrated by tubes of which the lower ends dip into the water in the reservoir, the tubes containing capillary material and being selectively closable.

Abstract: A combination smoke and fire shield damper comprising a line of blades each of which is so supported for rotation in a surrounding frame that the blades are swingable about parallel axes to open or close an opening in the frame, in which the blades are provided with "opened-out" trailing edges so that the leading edge of each blade interlocks with the trailing edge of an adjacent blade when the blades are in their fully-closed positions.

Abstract: A twin-gate type turnstile in which the central barrier thereof is provided in the form of vertically staggered rows of arms extending between an opposed pair of posts, with at least terminal lengths of the fixed arms, i.e., the length portions thereof adjacent the posts extend in an arcuate course so that during the rotation of the rotors, the arms of same pass through the fixed rows of arms at about mid-length of such fixed arms thereby lessening the likelihood that a user could accidentally enter into or be caught in the space between the rotor arms and the fixed arms of the barrier if the user by mistake sought to transit the turnstile in the wrong direction or failed to exit the turnstile at the proper location.

Abstract: A system for unloading finished workpieces from a bowl-type vibratory finishing machine utilizes a structure defining a channel overlying a portion of the bowl, and a removable ramp member which is insertable into and removable from the bowl for selectively directing finishing media and finished workpieces from the bowl into the channel. The channel is provided with a screen through which media entering the channel will fall back into the bowl and across which finished workpieces entering the channel will pass for discharge. The ramp member is of novel, foldable construction to facilitate its insertion into and removal from the bowl. In preferred practice, the floor of the bowl is provided with a mound-shaped formation having a substantially horizontally extending top surface. The ramp member has an upper end region which is engageable with the channel-defining structure and a lower end region which is engageable with the mound-shaped formation.

Abstract: A vacuum hand sanding device consists of a back-up pad with sanding disc attached thereto detachably secured to a vacuum housing and vacuum source. The back-up pad has a plurality of apertures in the surface thereof and channels therein between the apertures and the housing. In one embodiment, a relief valve is provided on the housing and which can be covered by an operator's hand. In another embodiment, the relief valve is situated on a tubular handle connecting the back-up pad to the vacuum source. Means may be provided for adjustably altering the angle between the pad and the tubular handle.

Abstract: A vacuum chuck for use in lens grinding having a vertical bore extending downwardly into the block to join a through horizontal bore provided with a venturi, so that by blowing air through the venturi a vacuum is created in the vertical bore to secure the lens placed on top of the block.

Abstract: A roll grinding machine having a neckrest which comprises a pair of roll supporting gibs functioning as independent load carrying members as well as having means for adjusting both the supporting gibs permitting accurate axial alignment of the roll in the machine.

Abstract: A weather seal assembly for an air supported roof structure which has a plurality of flexible sheets forming roof panels whose edges are joined together by clamping assemblies comprising pairs of clamping members. The clamping assemblies are sealed by a plurality of cross-shaped sealing strips which are attached to the clamping assemblies and a plurality of flexible membranes each of which is congruent with perimeter of a roof panel. Each clamping member holds one edge of a membrane the opposite edge of which is reversely folded over the clamping member and inserted into a channel in the sealing strip.

Abstract: A reflector awning for buildings, trailers, mobile homes and other structures including a reflector frame having a transparent reflective panel mounted therein with pairs of bracket arms pivotally connected to the side frame members adjacent the upper and lower ends thereof whereby the bracket arms are so pivotally attached to a wall surface adjacent to a window frame therein and being pivotally vertically adjustable relative thereto that, when raised to elevated awning position during warm weather, the sun's rays will be reflected therefrom to cool the interior, and, when arranged at a position angularly below the window, the sun's rays will be reflected inwardly through the window to assist in heating the interior. When mounted relative to a window, viewing therethrough is not impaired.

Abstract: Prefabricated skeletal building structure comprising at least three pillars connecting a lower base and an upper base, said bases having equal polygonal shapes, said upper base defining means to support flooring.

Abstract: Improved panel holding and jointing strips and insulating window assemblies made therewith are disclosed. Hinged perimeter and jointer strips allow the use of insulating panels in large windows with multiple panes and commercial applications where strength and esthetic appeal are important considerations. The strips are also adapted to receive glazing or insulating panels of various thicknesses and are also useful in providing insulating windows for existing prime windows in an array.