Abstract: A terminal collar for electrically connecting a contact element includes a yoke of strip metal in the shape of a closed loop. End portions of the strip overlap, one being formed with a clearance opening and the other having a swaged boss engaging in the opening to prevent relative lateral deviation of the end portions. Side walls of the yoke define reentrant angles. Upon advancement of a screw through threads formed in the boss the contact element and conductor are clamped within the yoke. The side walls are stressed resiliently, and accommodate themselves to contraction or expansion of the wire, while at all times remaining within their elastic limits.

Abstract: A tensioning device for an inflatable structure which includes a deck area to provide a floor for the inflatable structure, an outer inflatable member providing the main flotation for the deck, the outer inflatable member extending around the outer periphery of the deck, and an inner inflatable member which is integrally connected to the deck to provide additional buoyancy to the central area of the deck but primarily to increase the tensioning of the deck of the inflatable structure since a portion of the material of the deck comprises a portion of the walls of the inflatable chamber of the inner inflatable member and as such inflation of the toroidal inner inflatable member causes the lower wall section thereof which itself is a portion of the deck itself to assume a downwardly facing convex arcuate configuration which increases the tension on the deck between the inner and outer inflatable members, the device may alternatively include valves for controlling the buoyancy and tensioning as well as a canopy a

Abstract: A Universal Bottle Suspension Device for packers including a plurality of movably mounted slide members which are arranged in rows and are disposed in spaced relation with respect to one another in order to be movable both toward and away from one another, each movable slide member including a downwardly extending connector means and a rail member secured to the bottom of the connector means, each rail member generally extending parallel with respect to the slide members such that the rail members are adapted to be movable both toward and away from one another in such a fashion as to hold and release bottles wherein the head of the bottle extends above the rail members and the rail members are adapted to be urged against the neck area of the bottle, the inwardly facing edges of the rail member providing low friction surfaces to facilitate movement of the bottle when held between the rail members, the friction free surfaces thereby defining a retaining channel therebetween for selectively holding the bottles t

Abstract: An adjustable throatless tennis racquet including a head portion formed of two similar members disposed in spaced relation with respect to one another and separated by a plurality of spacers fixedly maintained therebetween by a plurality of pin members, the racquet further including a plurality of sheaves rotatably mounted preferably around the spacers and including a peripheral groove about the exterior thereof to receive therein a string as in conventional tennis racquets however such that the stringing is performed in a diagonal fashion, the ends of the stringing secured to a connector member in the top of the handle portion of the frame such that by lateral movement of the connector portion the strings throughout the surface of the diagonally strung racquet will be allowed to move axially with respect to the string itself, the connector being laterally movable within a space defined by the parallel extending surfaces of the two similar members, the racquet further including a mechanism for adjusting of th

Abstract: Equipment for blowing insulation or the like into buildings or other areas is provided with a supply bin or hopper having a primary conveyor, such as a plurality of parallel screw conveyors, occupying substantially the entire area of the bottom of the bin and serving to supply the insulation to a feed conveyor for transfer to a discharge tube, the delivery conveyor in the discharge tube preferably also is in the form of a screw conveyor which advances the insulation to an air blowing source that discharges into the insulation flow path to blow the insulation through a distributing hose in a controlled manner for placement in a desired area, the operation of the primary conveyor, feed conveyor and delivery conveyor as well as the operation of the air blower are responsive to a separate controller being remotely locatable with respect to the hopper so that a single operator may vary the supply of insulation material and air as required simultaneously with manipulating the distributing hose to assure proper plac

Abstract: A boom-type spraying apparatus which is automatically leveling during usage in spraying materials adjacent highway fixtures such as guard rails, the apparatus provides a means for automatically controlling the level of the spraying apparatus regardless of changes in lateral or vertical movement of the vehicle carrying the reservoir of material, the spraying apparatus including preferably two boom arms which are pivotally secured to a vehicle, the boom arms preferably each include an inner end and an outer end which telescope with respect to one another and are spring biased to allow this telescoping movement, the apparatus further including a roller construction at the outer end of the boom arm which is mounted upon a spindle at the end of the boom arm such that as the vehicle travels along the road the roller will follow the guard rail therealong and as such will hold the spraying conduit and spraying head in the proper orientation for application adjacent the guard rail, the roller configuration may include

Abstract: A sensing system for use in a garage or other similar enclosure having an automatic door operator for automatically opening a garage door responsive to a lack of sufficient oxygen therein including a gas detector located within the enclosure responsive to actuate a detection relay which in turn will close a normally open detection switch, the closing of the detection switch will normally cause operation of the door operator to allow oxygen to enter into the enclosure through the door opening, the detection switch being located in a door opening control circuit which includes therein a first limit switch which is open whenever the door is open in order to prevent actuation of the door operator when the door is already open, the door opening control circuit also including a delay clock and delay switch which will be normally closed to allow operation of the door operator, this system also including a time delay circuit with a second limit switch therein which is adapted to be normally open and to close only whe

Abstract: A method for forming an electrically conductive glaze upon the outer surface of a ceramic mold form including the mixing of approximately 25 percent potash feldspar, approximately 22 percent flint, approximately 7 to 8 percent calcium carbonate, approximately 1 to 2 percent ball clay, approximately 2 to 4 percent kaolin, approximately 5 percent barium carbonate and approximately 35 percent red iron oxide, all percentages being taken by weight, the method including the addition of an amount of flocculent such as 20 percent magnesium sulfate solution to control the viscosity of the solution and thereby control the thickness of the layer formed upon the external surface of the ceramic mold form, also including preferably the spraying or dipping of the mold form in the resulting solution for coating thereof as well as the firing of the coated ceramic mold form in a furnace of approximately 2200 to 2300 degrees Fahrenheit for approximately a 30 hour cycle.

Abstract: A ventilation system to be worn by an individual whenever cooling of the external surface of his body is required such as when wearing an industrial protective garment such as a rain suit which comprises a manifold for receiving ventilating gas and distributing the gas which includes an inlet in the manifold and an outlet from the manifold for receiving and distributing ventilating gas, the outlet is selectively connected to at least one gas distribution conduit which is formed of flexible fabric material and extends over the surface of the body of the wearer, the gas distribution conduits include a plurality of orifices in the surface thereof to provide controlled distribution of the ventilating gas, the gas distribution conduits can be formed of a woven fabric material which is coated with a gas impervious elastometer such as butyl rubber or the like to prevent the exiting of gas from the gas distribution conduits except at the locations of the prechosen orifices, the system may include simply two conduits

Abstract: A waste heat recovery device particularly usable for heating the air traveling through a cold air return duct to a hot air gas heating furnace which includes an exhaust box securable to the wall of the furnace and adapted to receive exhaust gases therein to gather heat in the plenum chamber defined by the exhaust box, the exhaust box also including an exhaust gas outlet to expel gases to the existing heater stack or flue for venting, the plenum chamber including an exhaust coil being in fluid flow communication through a conduit to a return coil which is located within the cold air return, the conduit means being partially filled with a thermal transfer fluid such as water which will boil within the conduit in the exhaust coil means and will condense within the conduit in the return coil means and as such will effect rapid thermal transfer from the heated exhaust waste to the incoming cold air traveling through the cold air return and thereby achieve waste heat recovery.

Abstract: An electrically heated tip assembly, particularly useful with a cyclically operated thermal press usable for forcible placement of inserts of hard material within bases of softer materials, includes a generally longitudinal tubular core member formed of a thermally conductive material. The core encloses an electric resistance heating element and has a tip element secured to one end thereof in heat exchange relationship with the heating element. The tip element includes a protruding finger member engageable with an insert and a paraboloidal section between the core member and protruding finger member to facilitate the concentration of heat downwardly into the finger member during the insertion portion of the operating cycle of the press.

Abstract: A container in the form of a flat envelope, open at one end for insertion and removal of a slide, has a series of locking keys shiftable laterally to left or right from a normal, centered, rest position. When all the keys have been shifted in predetermined directions to positions representing a pre-set combination, the slide is freed for partial removal from the envelope, to an unlocking position that permits the object to be removed or in some cases to gravitate freely from the envelope. The device can be made inexpensively of injection molded plastic or plastic-coated cardboard, cheaply enough to allow it to be made as a single-use, disposable article.

Abstract: A composition of matter which is useful by a particular method for forming an electrically conductive glaze upon the outer surface of a ceramic mold form wherein the combination includes approximately 25 percent potash feldspar, approximately 22 percent flint, approximately 7 to 8 percent calcium carbonate, approximately 1 to 2 percent ball clay, approximately 2 to 4 percent kaolin, approximately 5 percent barium carbonate and approximately 35 percent red iron oxide, all percentages being taken by weight, the method including the addition of an amount of flocculant such as 20 percent magnesium sulfate solution to control the viscosity of the solution and thereby control the thickness of the layer formed upon the external surface of the ceramic mold form, the method also including preferably the spraying or dipping of the mold form in the resulting solution for coating thereof as well as the firing of the coated ceramic mold form in a furnace of approximately 2200 to 2300 degrees Fahrenheit for approximately a

Abstract: A replaceable visor which is particularly usable with the headgear of a protective garment which includes a transparent member held in place by the protective garment in front of the eyes of the wearer, the transparent member including an inner and outer frame member secured to the inner and outer side of the peripheral edge thereof to define therebetween a retaining channel to receive a bead which is fixedly secured to the hole in the garment designed to receive the visor, the bead may be formed by a cord which is secured to the periphery of the hole in the garment headgear and as such provides the bead which the retaining channel may grip to hold the replaceable visor in position, the bead may be attached to the protective material by a beading pocket formed by sewing of opposite width-wise edges of a binding tape to the edge of the protective material and holding the beading cord therein, holding of the beading within the retaining channel may be facilitated by including a retaining clip which biases the b

Abstract: A determination of the presence and amount of a specific organic substance (ligand) that will form a complex with a macromolecule (antibody) may be made by means of a reagent obtained by binding to the ligand to be assayed a chemiluminescent substance. The addition of a limited amount of a substance (antibody) having receptors for the ligand together with the chemiluminescent labeled ligand to the fluid to be assayed results in a competitive reaction between the ligand present in the fluid and the chemiluminescent labeled ligand for the limited number of receptor sites. Under equilibrium conditions, the amount of chemiluminescent labeled ligand bound to the antibody is related to the amount of unlabeled ligand in the solution being assayed, and is determined by isolating the antibody and measuring its chemiluminescence or by isolating and measuring the amount of free labeled-ligand remaining.

Abstract: A sterile syringe including a cylindrical housing and a plunger positioned therein movable axially, the housing including a headwall defining a headwall aperture therein which is selectively registrable with a mated aperture defined by a cap member which extends over the head of the syringe, the cap member is mounted upon a stem in the center thereof which secures it to the center of the housing of the syringe, the stem allows relative rotation between the cap member and the syringe housing to selectively align and misalign the aperture in the cap with respect to the aperture in the housing, the end of the cap and the headwall of the housing being slightly spaced from one another to define an insulating space therebetween in which is positioned a sealing member such as a rubber grommet which seals the chamber within the syringe housing whenever the aperture in the headwall of the housing is not aligned with the aperture in the cap due to the cap being rotated slightly with respect to the housing, the aperture

Abstract: A packer grid block assembly utilizing detachably securable fingers for guiding articles into an orderly array to facilitate packing of the articles into a predefined receiving location positioned therebelow including a plurality of equally spaced parallel grid plates having mounted thereon a plurality of generally triangular support blocks which each present outwardly facing block surfaces to which a plurality of guiding fingers are detachably securable, each block surface including secured thereto a cover plate which is maintained in a spaced relationship with respect to the block surface by a plurality of spacers which serve to define a separation space between the cover plate and the support block, the finger members serving to guide articles passing through the grid may be detachably securable in a location between the cover plates and the block members by detachably securing themselves around the spacers, the elongated finger members being of a resilient material and defining a longitudinal slot therein

Abstract: Solvent-free hot melt compositions for use as sealants, adhesives, caulking compounds or the like are produced by intimately blending elastomeric polymers with tackifying resins and plasticizers to obtain products having a hardness at room temperature of at least about 5 on the Shore A Durometer scale while being sufficiently soft at temperatures of about 150.degree. F. or higher to permit them to be easily extruded or otherwise applied. Adhesion promoters, lubricants, fillers and the like are preferably added to the composition to improve the properties thereof. The products are characterized by their stability over a wide range of temperatures, their resistance to oxidation and weathering, and their low moisture vapor transmission properties.

Abstract: A system for refrigerating food products utilizes a saturated gaseous refrigerant, commonly called "cool gas" for defrosting an evaporator or set of evaporators. When defrost is to occur, the saturated gaseous refrigerant flows from a receiver through the evaporator or set thereof being defrosted. A differential pressure control switch operates to prevent flow of refrigerant to the receiver from the liquid supply line through which said refrigerant normally flows from the condenser to the evaporators. The flow from the liquid line to the receiver is prevented whenever the pressure in the liquid line exceeds the pressure in the receiver by a predetermined value.