Abstract: This device for locking a dental tool in a handpiece of the contra-angle type comprises a keeper plate slidably mounted on the external surface of the holder and rigidly associated with a control member formed with a thumb-piece consisting of an inclined surface portion thereof. A keyhole formed in the keeper plate is engaged by a suitable shaped end portion of the tool shank so that when the keeper plate is moved to its release position the tool shank can pass through the larger portion of the keyhole and when the plate is in its locking position to which it is urged by a return spring the end portion of the tool shank engages the narrow portion of the keyhole.

Abstract: A telephone mounting stand or display holder includes a base member having a plug for tight fitting frictional engagement into the finger sockets of a standard telephone and includes vertically extending support members supporting a generally outwardly opening U-shaped display holding frame having a plurality of slots for receiving and holding sheets of display material. The holder includes a hand grip of a similar configuration to that of the standard telephone formed in the base member, substantially co-extensive with the finger sockets of the standard telephone and further includes a business card holding rack of the back side thereof.

Abstract: Apparatus for holding a display panel such as a warning sign is the subject of the present invention. The apparatus is particularly designed for use as a barricade in the vicinity of road construction. The apparatus is constructed of standard plastic tubing and fittings of the type used in the plumbing industry. A break-away construction minimizes damage in the event an object strikes the apparatus and makes repair quick and economical. Four tubular leg supports are arranged in two converging pairs and are each presented by tubular members held together by a standard T-coupling. Standard Y-couplings join the two pairs of leg supports at their point of convergence. First and second transverse tubular members extend between the T-couplings on the respective pairs of legs and each of the transverse members is of a length equal to twice the length of the members which form the legs. This permits the two leg sections to be made by simply dividing a transverse segment into half.

Abstract: A method for the display of information by means of a multi-element passive display device, the elements being separately activated, matrixially arranged and at least two elements required to be activated for display of information. The type of display involves use of a liquid crystal cell formed of electrodes and counter-electrodes carried by two glass plates respectively and the said elements are parts of said electrodes and counter-electrodes.The method comprises the election for activation of elements which are adjacent in any direction, that is, either those superposed, or side by side or diagonally arranged. This method enables use of conventionally shaped characters of greater individual size than heretofore available and is useful for display of dates and/or days of the week on electro-optic watches.

Abstract: An elongate, generally cylindrical, hollow cotton roll for use with metal or plastic aspirators or suction tubes for keeping an area dry in medicine and dentistry. The roll has an inner layer of an open mesh fabric which receives the end of the aspirator, a layer of cotton or synthetic roving surrounding the fabric layer, and a layer of braided yarn surrounding the roving to retain same. Also disclosed is a machine for manufacturing such a cotton roll in a continuous length.

Abstract: An inflatable toy which when inflated has the contour of a hassock. The toy features a cylindrical envelope and inner radially-extending planar baffles, these elements being composed of soft limp flexible material such as a thermoplastic plastic. When the toy is inflated by introducing air under mild pressure into the envelope, the top and bottom walls of the envelope are distended so as to assume the contour of the top and bottom of a hassock, i.e. with a central bulge and discrete radial outward bulges. This configuration is formed by disposing the baffles vertically and mutually angularly spaced, each of the baffles extending radially from near the central axis of the envelope and terminating short of the periphery of the envelope, with rectilinear attachments of the top and bottom edges of each of the baffles to the top and bottom walls of the envelope. The baffles are tautened by outward force exerted on the top and bottom walls between the baffles, by the pressure of the inflating air.

Abstract: A novelty toy device for forming a variety of geometric configurations. The device is constructed of a series of uniquely shaped members which form at least one closed loop. The members are joined together such that each member is axially rotatable with respect to adjacent members, thereby enabling the members to be twisted into a variety of shapes.

Abstract: A panel file, for the storage of flat, flexible data elements, consists of plural, vertically spaced pockets, the entrances of which are formed by a plurality of vertically spaced, horizontally extending strips of resilient material. The strips are arranged so as to have an upper edge which overlaps the lower portion of the next upwardly adjacent strip. The strips are fastened together at their lateral margins. The lower portions of the pockets are formed by a support sheet which is attached to the panel on the surface opposite the pocket entrances. The support sheet is cut so as to have a column of inverted "V"-shaped straps, each having a vertex which is attached to the back of strips above overlapped portions thereof. The strips have an upwardly indented bottom edge with a central vertex at the point where the support sheet strap is attached to the next downwardly adjacent strip.

Abstract: Disclosed herein is a canal instrument for eliminating interference and achieving the widening of the opening and the contemporaneous flared reaming of the first two-thirds of the dental radicular canals, the instrument being designed in such a way that over the full length it progressively reduces in thickness towards the tip, while the cutting part that extends from the terminal part or the instrument coupling section to an endodontic drill only extends for a part of the working length.

Abstract: A releasable animal hitching apparatus including a support member, a hitching member movably carried by the support member, and a biasing member associated with the hitching member, the support member including a main section and transverse sections extending substantially perpendicularly from the main section adjacent the ends thereof, the main section including structure for fastening the support member to a supporting surface, each of the end sections having a recess therein facing the corresponding recess in the other end section, the hitching member including a hollow housing disposed between the recesses of the end sections, an opening in the sidewall of the housing, at least one bracket section extending outwardly from the external sidewall of the housing adjacent the opening thereof, a trigger member pivotally connected to the bracket section, the trigger member having a first portion extending through the sidewall opening of the housing, the first trigger portion having a rounded surface area extendi

Abstract: A base supported upright frame supports an electric motor and gear train having a vertically disposed drive shaft. The drive shaft is axially connected by brackets, stub axle and bearings with a nonrotating swash plate. An elongated strand, connected at one end with a radial portion of the plate and entrained over one or more pulleys, is connected at its other end with an element to be animated by the plate moving the strand in a vertical reciprocating action.

Abstract: An illuminated number display device is disclosed which includes a generally rectangular housing having a front wall on which is mounted one or more number plates so that each number plate overlies an opening in the front wall. Each number plate defines a number visible in daylight and has a plurality of frustoconical light passages therethrough which outline the number and facilitate improved illuminated number display at night from a plurality of low energy light bulbs mounted internally of the housing so that the light from each bulb passes through at least two openings in the front wall and through the light channels in the corresponding number plates. Light diffuser plates are preferably disposed between the front wall openings and the light bulbs, and, optionally, over an opening in a bottom wall of the housing to provide downwardly directed auxiliary lighting.

Abstract: The assembly includes an electrically insulative support member which overlies electrical contacts on the handpiece and further includes a pair of contact members which press a flexible printed circuit against the electrical contacts to couple a pair of bulbs to the electrical power source. The light source assembly additionally includes means for effectively sealing the contact regions from environmental fluids.

Abstract: An augmented bubble blower device in which a mouthpiece tube is mounted for axial movement relative to a venturi tube. The discharge end of the tube is surrounded by an open chamber so that a jet of breath which is discharged from the mouthpiece tube along the longitudinal axis of the venturi tube draws air from the surrounding environment and carries that air with it into the venturi chamber. The remote end of the venturi chamber provides a support for the formation of a bubble from film-forming material stretched across the remote end of the venturi tube.

Abstract: An orthodontic appliance comprising a bar that provides a splint for setting broken jaws or other facial bones. Upper and lower bars are attached to the patient's teeth with ligature wires and interconnected with the elastic bands to allow the jaw to set properly. The elastic bands are mounted within a prong that provides a base surface to receive the elastic band and has a movable tab member to thereby provide an enclosed opening to receive and hold each band. After the bands are positioned the associated movable tab is bent over the elastic band to hold it in place and provide a rounded contour that matches the tissue of the gum. The prongs can be easily bent for attachment of ligature wires from any direction to support other facial bones which are to set.

Abstract: Advertising apparatus with electrically operated attention drawing means conveniently in the form of a lamp or device for emitting an audio signal. The apparatus is for use with a device for dispensing liquids from inverted bottles and has a support bracket, a resilient mounting projecting from the bracket and adapted to locate a liquid metering device and a bottle attached thereto, and a switching circuit for operating the attention-drawing means with the switching circuit being closed by movement of the bottle on the resilient mounting when the liquid metering device is activated.

Abstract: A dowel pin setting instrument provided with a supporting means having a first member and a second member detachably inserted into the first member so as to prevent its rotation therein and mounted on an impression material other than a tooth mark and a flexible tube having dowel pin fitted at one end thereto and coupled at the other end to supporting means.

Abstract: A flying saucer toy made of translucent semi-rigid plastic material is disclosed. The toy has a cover with an outer rim extending horizontally around its periphery, a lower housing integral with the rim, which blends into an upper housing integral with the lower housing. The upper housing curves upward and inward in an arcuate manner to form a hemisphere closing the top. A plurality of arcuate openings around the periphery of the lower housing and a second plurality of arcuate openings around the periphery of the upper housing are covered by a colored transparent membrane. A flashing light in the interior of the saucer is powered by a battery power source. A flasher flashes the light bulb and an on/off switch interconnects the power source to the flasher and light bulb. A plurality of rotatable wheels attached to a bottom member allow the flying saucer toy to be moved about on the floor.

Abstract: A rabbit restraining box apparatus having numerous advantageous features including a hinged securable cover for rabbit restraint and an adjustable length. A kick plate for contact with the feet of the rabbit's hind legs adjustable in height and position for rapid adjustment to individual rabbits inserted in the box and to facilitate flushing of the feces from the box is provided as is a rounded, cushioned and size-adjustable neck opening.

Abstract: A biorhythmic cycle indicator having three, sine-wave-contoured plates that slidingly overlay a backing plate that has a calendar strip. The plate contours and the calendar register to provide a graphic representation of a person's biorhythmic cycle.The contours of the sliding plates are illuminated to accent the component cycles.