Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 4283797 | Video bow tie 1. A novelty bow necktie structure comprising a narrow strip of fabric folded into juxtaposed folds, a tube sleeved around the folds midway the ends thereof, an electric lamp structure supported and concealed within the confines of the tube, conductors co... | 08/18/1981 |
| 4283798 | Attitude indicator for divers A device for enabling a diver to determine his relationship to the true horizon in deep and murky waters or when physiological sensations are of little value is described. An attitude sensor, incorporating a series of mercury switches, usually at the back... | 08/18/1981 |
| 4283799 | Pre-coated body implant A pre-coated body implant, such as, for example, a hip prosthesis, in which that portion of the implant that attaches to or is inserted into a skeletal member of the body has a pre-coating of a material (e.g., an acrylic material) covering all or most of ... | 08/18/1981 |
| 4283800 | Adjustable prosthetic element A prosthetic device which is adjustable in the transverse plane includes a flanged element moldable in a plastic socket and an element having a toothed superior surface. The plastic socket is formed about the flanged element while using the toothed superi... | 08/18/1981 |
| 4283801 | Hydraulic cylinder for multilevel submersible safety deck or decks for pools Pools of all peripheral shapes of either above or below ground construction with single slope or flat bottoms when not in use may be equipped with a rigid structurally safe traversible completely dry surface deck or decks for domestic functions and to sim... | 08/18/1981 |
| 4283802 | Toilet tanks with built-in water supply valve A toilet tank has water supply and overflow ducts which are integrally formed with the base and walls of the tank. The water supply duct is connected to a water inlet at one end to supply water to the tank and has an inlet valve at its other end to contro... | 08/18/1981 |
| 4283803 | Process for immersing in a swimming pool disabled persons using a wheelchair A swimming pool lift installation for the handicapped employs a platform for carrying a wheelchair that is lowered and elevated with the platform so that a handicapped person can sit on his chair and be lowered into the pool for swimming away from the cha... | 08/18/1981 |
| 4283804 | Swimming pool structure An above ground pool has straight side wall extents with deck members attached to the extent upper edges. Tension members anchored in aligned deck members adjacent their outer edges allow prestressing of the deck members to prevent outward bowing of deck ... | 08/18/1981 |
| 4283805 | Horse hoof pick Horse hoof pick comprising an arm having front and rear end portions and another arm having pivot connection to the first arm intermediate its end portions, the first arm defining at its front end portion a hoof picking head comprising a terminally pointe... | 08/18/1981 |
| 4283806 | Shoe machine air blast mechanism and air blast safety device A device for cement applying mechanisms in shoe lasting machines, wherein a safety valve is caused to prevent air from entering an air feed line in the cement feed when there is no shoe in the shoe machine and the shoe machine has been actuated, thereby p... | 08/18/1981 |
| 4283807 | Cleaning of heat exchangers composed of tubes In a heat exchanger comprising tubes to be cleaned by the injection of compressible balls into the fluid upstream of the tubes, grids are provided downstream of the tubes to enable the balls to be separated from the flow of fluid and reinjected upstream. ... | 08/18/1981 |
| 4283808 | Gripping device for tooth brushes A gripping device for tooth brushes adapted to be positioned over the handle of the tooth brush, the gripping device comprising an elongated body member formed from a plastic foam material and having a cross-sectional diameter so that the tooth brush can ... | 08/18/1981 |
| 4283809 | Swab holding tool The specification discloses a swab holding tool (10) in which a handle (12) includes a passageway (14) with a tube (16) mounted in the passageway (14). The end of the tube (16) away from the handle (12) includes a flaired portion (20) for receiving and ho... | 08/18/1981 |
| 4283810 | Dual wheel caster body structure A dual wheel caster body construction wherein the caster body frame is fabricated from a pair of sheet metal stampings nested together at an integral swivel stem socket and secured together in the area of confronting plate portions with an axle bearing th... | 08/18/1981 |
| 4283811 | Improved knuckle hinge The present invention provides a hinge comprising leaves and a knuckle, the knuckle comprising tabs extending from the leaves and supporting hinging pivot means and at least one of the tabs of one leaf supporting at least one of the tabs of another leaf a... | 08/18/1981 |
| 4283812 | Machine for making meat patties A machine for making meat patties comprises a machine frame defining an inclined slideway including a bed at an output end thereof. A feed funnel is mounted on the machine frame at an upper input of the slideway and receives ground meat at an inlet and di... | 08/18/1981 |
| 4283813 | Poultry inspection apparatus and method To avoid the passage of contamination from one bird to another at a poultry inspection station in a poultry processing shackle line and to eliminate the necessity for the inspector to touch the birds during the inspection, each bird in succession at the i... | 08/18/1981 |
| 4283814 | Method and apparatus for coiler head cleaning Method and apparatus are disclosed for eliminating or minimizing air borne dust, fly, lint and the like particulate matter, and static accumulations thereof generated by the movement of sliver into the coiler trumpet of a sliver coiler. Coiler head cleani... | 08/18/1981 |
| 4283815 | Button construction Conventionally, buttons for covering with fabric consist of a hollow back portion with a stem or the like extending therefrom and a front shell snapped into place over the edge of the back portion with fabric covering the front shell and being clamped bet... | 08/18/1981 |
| 4283816 | Binding device A binding device comprises a band with fastening steps, a fastening member having a round hole formed integrally with one end of the band, a shaft member formed integrally with the other end of the band, and fastening means provided on the fastening membe... | 08/18/1981 |
| 4283817 | Method for bonding electrode plates in a multicell x-ray detector A multicell x-ray detector includes a chamber for confining a gas that produces electron-ion pairs incidental to absorbing radiation. A unitary multicell electrode assembly is mounted within the chamber. The assembly includes a plurality of electrode plat... | 08/18/1981 |
| 4283818 | Apparatus for reducing racket handles A hand operated apparatus for reducing the size of racket handles such as used in tennis rackets is described. A base in which racket handles are secured has raised opposed sides, the edges of the sides defining a guide plane. The guide plane is parallel ... | 08/18/1981 |
| 4283819 | Segment-shaped blade A segment-shaped blade is provided for use in a rotatable cylindrical tool for machining elastic material, particularly pneumatic rubber tires for vehicles. The blade comprises teeth defined at the convex periphery by approximately V-shaped or circular or... | 08/18/1981 |
| 4283820 | Segment-shaped blade A segment-shaped blade is provided for use in a rotatable cylindrical tool for machining elastic material, particularly pneumatic rubber tires for vehicles. The blade comprises pointed triangular teeth, which are provided on a convex periphery and are sta... | 08/18/1981 |
| 4283821 | Method for producing fiber rolls A fiber roll and a method for producing the fiber roll comprising a load carrying shaft portion and having thereon a cover portion made of fiber material. The cover portion is made by subjecting a great number of annular fiber material sheets fitted on th... | 08/18/1981 |
| 4283822 | Method of fabricating composite nozzles for water cooled gas turbines A method of fabricating a composite nozzle for water-cooled, high temperature gas turbines is provided wherein the nozzle comprises a thermally conducting copper core, a top endwall, a bottom endwall, metal tubing through which water may pass embedded in ... | 08/18/1981 |
| 4283823 | Method of making an actuating member for a thermostatically controlled valve A thermostatically controlled valve, of the type used in a cooling system of an internal combustion engine, has a temperature-responsive actuating member, for opening and closing the valve, in the form of a metal coil having shape memory effect such that ... | 08/18/1981 |
| 4283824 | Method for manufacturing heat exchanger tubing In accordance with the teachings of the instant invention, methods and apparatus are set forth for the manufacture of discrete lengths of heat exchanger tubing comprised of a thin walled metallic tubular member having a plurality of spaced apart transvers... | 08/18/1981 |
| 4283825 | Heavy duty press A heavy duty press including spaced apart, inturned, U-shaped vertical supports welded to a horizontal support structure extending therebetween at contiguous surfaces, a work support table adjustably receivable on the vertical supports and a spring biased... | 08/18/1981 |
| 4283826 | Tube extracting mechanism A tube extracting mechanism comprising an elongated frame defining an opening in the front end thereof and a longitudinally extending passageway in communication with the opening. A sleeve is slidably supported by the frame for longitudinal movement withi... | 08/18/1981 |
| 4283827 | Tool for removing axle spindles An improved tool construction for removing spindles from axle shafts by use of a slide hammer which exerts an axial pull on the spindle to dislodge it from an axle housing. The tool is a section of cylindrical thick-wall tubing or pipe which forms a housi... | 08/18/1981 |
| 4283828 | Endless track support tool An apparatus for removing support and guidance rollers from an endless track vehicle so that the rollers may be repaired or replaced. The apparatus includes a tool having a base on which a generally vertical threaded shaft is mounted and such shaft may be... | 08/18/1981 |
| 4283829 | Protective device for mounting blades on arrowhead A spool-like protective device facilitates the mounting of a plurality of razor-sharp broadhead blades on an arrowhead while protecting a user's hands from being cut by the blades. The body of the device includes a tapered central bore adapted to receive ... | 08/18/1981 |
| 4283830 | Method and apparatus of monitoring the screwing home of a threaded element by a power tool In order to determine whether the screwing home of a threaded element, such as a screw, by a power tool has been acceptably executed, the number of revolutions undergone by the threaded element during the screwing operation is measured as a function of ti... | 08/18/1981 |
| 4283831 | Method of manufacturing and interlocking jewelry with precise preforms A method of casting metal so that the finished casting will hold a precise dimension in certain critical areas in order to enable the finished casting to be used as a frame for objects such as coins and medallions which are die struck to precise dimension... | 08/18/1981 |
| 4283832 | Method of making print head assembly There is disclosed a method of making a print head assembly and a print head assembly. The print head assembly is comprised of one or more subassemblies. Each subassembly is made up of relatively few parts including a mounting block having a concave mount... | 08/18/1981 |
| 4283833 | Method of attaching a ball joint to a suspension member A suspension member is pivotally secured to a vehicle frame at one end and is connected with a wheel assembly at the other end. In order to connect the wheel assembly to the suspension member, at least one ball joint is fixed to the suspension member for ... | 08/18/1981 |
| 4283834 | Apparatus and method for aligning fine wire for thermal bonding The invention is an apparatus and method for aligning a very fine wire relative to a workpiece. It comprises an alignment fixture supporting a pair of spaced-apart lead screws for receiving the wire in the threads thereof. The wire is affixed to spacer ar... | 08/18/1981 |
| 4283835 | Cambered core positioning for injection molding Disclosed is a system for precisely locating a cambered ceramic core within the cavity of an injection molding die, such as is used to form patterns for lost wax method casting of gas turbine airfoils. A combination of at least two independent sets of loc... | 08/18/1981 |
| 4283836 | Multi-module dip transfer and insertion machine An apparatus is provided for individually selecting a number of dual in-line (DIP) components and sequentially inserting them into a printed circuit board. The apparatus has a basic mode of operation, under a program control, and comprises a shuttle assem... | 08/18/1981 |
