Abstract: An archery trainer and exercise device includes a gripping handle, an elastic cord connected to the gripping handle and a sighting rod extending from the gripping handle to permit a student archer to learn proper bow hand position and sighting while strengthening the particular muscles required for archery without the necessity for using an actual bow.

Abstract: A surgical procedure and apparatus therefor wherein a patient to be operated on is first wrapped with a plastic film sheet which is adhesively sealed to the patient's body remote from an operating area on the body, and is also sealed against an incision site on the body at the operating area. A sterilized atmosphere is provided beneath the film sheet for contacting the patient's skin. Another sterilized atmosphere is provided within a region substantially adjacent the body including the incision site, thereby enabling a surgeon to cut through the film sheet and into the patient's body with minimal risk of infection. Extensive and costly operating room sterilization procedures are thus significantly reduced, and patient comfort, as well as treatment, can be enhanced by controlling the temperature and humidity of the atmosphere provided beneath the film sheet.

Abstract: A recovery cell placed directly into the tank holding the metal containing solution is used to recover the metal from solution. A cathode for use in recovery cells is formed of a cellular nonconductive base layer having an outer layer of conductive material.

Abstract: The invention relates to an improved laryngoscope with a mounting for the incandescent lamp which permits its easy removal for replacement purposes. In one embodiment the lamp can be removed upwardly from the handle of the laryngoscope and in other embodiments it can be removed downwardly with a battery housing located in the handle.

Abstract: Photovoltaic cell comprises thin film cadmium telluride in ohmic contact with a smooth conductive substrate, preferably comprising a cadmium surface, through a cadmium-rich layer at the interface with the substrate, the cell further including a rectifying barrier layer. Preferably, the film is electrodeposited on the substrate surface with specific materials and process conditions. Preferably also, the film or cell is subsequently treated to enhance its barrier layer interface function.

Abstract: Photovoltaic cell comprises thin film cadmium telluride in ohmic contact with a smooth conductive substrate, preferably comprising a cadmium surface, through a cadmium-rich layer at the interface with the substrate, the cell further including a rectifying barrier layer. Preferably, the film is electrodeposited on the substrate surface with specific materials and process conditions. Preferably also, the film or cell is subsequently treated to enhance its barrier layer interface function.

Abstract: A method for producing chemically untreated fire resistant fiber blends includes the steps of separately blowing and carding bundles of selected matrix and staple fibers, respectively, to form separate slivers of each of the two fibers. Given proportions of each fiber are then combined during a common drawing step to form a bulky blended sliver which is then conventionally processed to produce a fire resistant yarn. The yarn is suitable for knitting or weaving to provide fabrics which far exceed current government fire resistant standards.

Abstract: A machine for bonding a layer of olefin yarn to a preference layer of nonwoven olefin material to form a laminated fabric is described. The machine includes an entry station whereat the layer of olefin yarns are oriented prior to being received on a tenter frame. The olefin yarns are conveyed to a spray station whereat one surface is coated with a solvent based adhesive and partially dried. The olefin yarns are then conveyed to a storage location for non-woven olefin material whereat it is initially bonded to the non-woven olefin material. From there it is conveyed to a bonding station where the layers are bonded together. Thereafter, the laminated fabric is automatically stacked.

Abstract: In a preferred embodiment of the invention, a totally non-metallic and portable turntable and driving mechanism thereof, insertable into microwave oven space the same as any other item would be placed into the oven space, having a plastic coil spring as the driving mechanism thereof, and having an optionally utilizable detachably mountable stationary stiring arm which stirs food cooking within a vessel being revolved on the revolting turntable.

Abstract: A method for the useful storage of electrical energy is described in which an electrochemical cell employing a halide electrolyte and an ungraphitized carbon positive electrode is charged at a voltage substantially below the conventional decomposition voltage required to produce free halogen from the selected electrolyte. An unidentified chemical complex is formed and stored at the positive electrode, and the positive electrode may thereafter be employed as an electrical energy source in a primary or secondary battery.

Abstract: A miniature toy steerable car uses the selective direction of rotation of the motor to effectively steer the front wheels of the vehicle. A reversible motor selectively drives one of a pair of rear wheels by means of a gear arrangement and one-way drive mechanisms such that one or the other of the rear wheels of the vehicle acts to drive and propel the vehicle in a forward direction. The motor is coupled with a front wheel steering mechanism which causes the front wheels to turn in one direction when the rotation of the motor is clockwise and causes the front wheels to turn in the other direction when the rotation of the motor is reversed or made to rotate counterclockwise.

Abstract: A hand saw with an interchangeable saw blade comprising a saw blade with a tongue a U-shaped reinforcing member for reinforcing the saw blade and the tongue, and a molded handle including a blade receiving opening. The handle includes a set screw which protrudes into notches formed in the tongue of the blade and the reinforcing member to lock the blade to the handle. The notches in the tongue and the reinforcing member are arranged so that only the notch in the tongue of the blade engages the tip of the set screw, thereby ensuring a firm clamping of the saw blade to the handle. The opening for receiving the tongue of the blade is defined by ribs formed on the handle.

Abstract: In accordance with illustrative embodiments of the present invention, measurements of a plurality of earth formation parameters are combined to produce a new parameter representative of characteristics of the formation. This new parameter is then utilized to determine the permeability of the formation.

Abstract: An extensible length sleeve which may be lengthened by the wearer utilizes a pair of seams to attach the sleeve cuff to the lower end of the sleeve. One of the seams is selectively removable to allow an underlying pleat in the sleeve fabric to be released, thus allowing the length of the sleeve to be extended. The attaching seams are hidden from view by sleeve fabric both before and after lengthening, so that the appearance of the sleeve is not altered by the lengthening.

Abstract: A tube abrading tool for cleaning outer and inner surfaces of ends of pieces of copper tubing such as that employed in domestic water supply systems. The tool includes an electric motor supported in a housing. A longitudinal shaft is rotatably mounted to the motor with the opposite ends of the shaft extending beyond the periphery of the motor housing. A male abrasive member, such as a wire brush, is releasably secured to one end of the shaft and a female abrasive member, such as a wire brush, is releasably secured to the opposite end of the shaft, so that the tool is readily manipulated to clean the inside and the outside of the end of a piece of copper tubing preparatory to soldering.

Abstract: A rotary cutting mechanism for transversely slicing an elongated rotatably driven roll of material such as plastic film into a number of narrower rolls includes a pair of spaced-apart knife cutting blades mounted for free rotation about an axis parallel to the longitudinal axis of the roll. A rotary saw blade is mounted intermediate and in axial alignment with the cutting blades, and is independently driven to remove material between the cutting blade edges as the blades are moved together to slice the roll. The finished narrower cut rolls therefore exhibit smoothly finished side edges and are readily separable from each other, there being no frictional heat developed by the cutting blade edges which are free to turn with the material on the roll as they slice through it.

Abstract: An endoscope includes a light conducting outer tube and a light absorbing inner tube, with the inner tube being located concentric with the outer tube and being spaced a distance radially inwardly from the outer tube so as to maintain total internal reflection in the light conducting material of the outer tube.

Abstract: A wound clip rack has a base and a plurality of groups of flexible support fingers projecting upwardly from the base. Each group of flexible support fingers is adapted to support one wound clip. Each group includes at least one and preferably two pairs of flexible support fingers, the fingers of each pair being spaced apart from one another and having facing support surfaces.