Abstract: A damper system, for a reach-in refrigerated display case of the air-defrosted type utilizes a single gear-reduction, reversible motor to operate between open and closed positions a multiplicity of dampers, all of which must be operated simultaneously. A radial arm on the motor shaft has a pin-and-slot connection to one damper connected to a series of other dampers pivoted about a common axis for joint opening and closing thereof. Each of the connected dampers includes cam means acting upon tongues of a second series of dampers pivoted about a common axis parallel to the axis of the first damper series. When the dampers of the first series are actuated to open position, the cams individual to the dampers of that series act to cause corresponding dampers of the second series to open simultaneously therewith. In a similar fashion, all the dampers are closed simultaneously by reason of their interconnection and cam action.

Abstract: A heat circulation device is provided which is portable to be usable placed upon conventional space heaters and particularly upon kerosene fueled heaters which includes a plenum housing adapted to be placed upon the heater which defines a plenum chamber therein for gathering heated air. The upper surface of the plenum chamber defines a generally convex heated surface and the sidewalls of the plenum chamber include apertures therein. A main housing is located immediately above the plenum housing which is adapted to provide a flow of cool air via a blower assembly wherein this cool air is guided to travel across the convection surface to be warmed thereby and then to travel past the hot air apertures to create a suction thereagainst similar to the Venturi principle and hence draw warm air outward therefrom. In this manner the heated air being supplied into the plenum chamber from the kerosene or other heater will be re-circulated in an outwardly directed manner 360.degree.

Abstract: A quickly assembled rack for supporting oxygen tanks and other cylindrical objects is disclosed, requiring no special tools and comprising relatively few components, adapted to be assembled in any of a wide variety of rack configurations. The assembly basically constitutes a plurality of rack sections each of which supports a single tank. Each section is comprised, essentially, of a three-sided box portion, a tank-supporting cradle adapted to be mounted therein, and a cover plate for the box section. By selective positioning of the box sections, any of various rack assemblies, extending in tiers for any selected horizontal or vertical distance, can be quickly erected, and knocked down with equal facility for storage or shipment. When a tiered assembly is desired, the bottom of one box section becomes the cover for the section below the same.

Abstract: A sanitary cushioning device for sink bowl edges is disclosed including a platform having a first and a second leg extending downwardly approximately perpendicular with respect thereto to define a slot therebelow. The slot is adapted to receive a sink bowl edge such as often found in a beauty parlor or haircutting salon. The device cushions the edge of the sink such that when a customer places his head in the sink bowl for washing the back of his neck will be cushioned for comfort. The device is usable with a great variety of different types of sink configurations due to the thick, soft resilient nature of the material. A water repellent covering is detachably securable onto the device to prevent water from contacting the foam rubber material. The device is held in place and the water resistant covering is held in place on the sink edge by the inwardly directed bias of the resilient foam rubber downwardly extending legs.

Abstract: An egg orientation device is disclosed which is adapted to receive eggs previously arranged along the longitudinal axes thereof and to arrange those eggs with the pointed ends thereof directed as desired. The device includes a conveyor formed by a plurality of egg supports defining egg receiving recesses therebetween each having an open bottom area through which protrudes at selected locations an egg inverter device. The inverter device comprises an abutment member which includes a friction surface thereon wherein the abutment member extends upwardly into the egg receiving recess through the open bottom area thereof to contact the bottom of the shell of an egg located therein to exert a primarily tangentially force upon the shell of the egg for inversion thereof. The egg receiving recesses being preferably approximately one and one half times the length of an average egg.

Abstract: A refrigerated display case, of the reach-in type having a door normally closing a customer access opening, utilizes ambient air for defrost purposes by channeling it through an inlet conduit at the bottom of the case. The air is introduced into the normal air circulation pattern that obtains during the refrigerating cycle of the case, at the intake sides of the otherwise conventional primary circulating fan and its adjacent evaporator coil. The arrangement avoids reversal of the normal air circulation pattern and maintains a small but noticeable air flow, during a defrost cycle, through the product display area and along the inside of the glass door surface. The inflow of ambient defrost air is directed into the case through a defrost air inlet conduit having at its outlet end a continuously open air supply port, which opens into the primary air duct to provide for said introduction of defrost air into the normal air pattern.

Abstract: A mounting device for fire hose nozzles of the pistol-grip-type is mountable upon a fire truck or similar vehicle. Centrally disposed in the device is a holster of soft, compressible rubber or similar material, having a tubular form and inclined or canted to accommodate the pistol-grip-type handle of a fire hose nozzle. The holster is protectively enclosed by front and back plates, which can be drawn toward each other so as to reduce the width of the holster, to permit it to accommodate pistol-grips on fire engine hose nozzles of various makes and sizes. A supporting bracket is attachable to one of the retaining plates, and is adapted to be attached to an adjacent surface of the vehicle, in any of various positions, including a position in which the bracket is spaced away from the associated back plate by a stand-off sleeve or spacer.

Abstract: A boat light includes a shield recessed within the hull of a vessel. A conventional sealed beam head-lamp unit seats in an exteriorly spherically shaped lamp unit retaining member formed of a resiliently flexible soft material such as rubber. The retaining member and shield have mating spherically shaped surfaces so that the retaining member can be angularly adjusted, within a pre-determined, limited range, to any of various selected positions within the shield, thus to correspondingly adjust and hence correctly aim, the head-lamp unit. The retaining member is quickly and firmly secured, in each position to which it is adjusted, through the provision of a soft rubber mounting ring, which fits over the inner end of the shield, and is spherically shaped interiorly thereof, to form a ball-and-socket mounting cooperating with the shield and the retaining member.

Abstract: An egg transfer apparatus as disclosed which is adapted to receive eggs from a position thereabove and transport the eggs gently to a location therebelow which includes a carriage plate which is generally vertically movable with respect to a housing. A slide retaining device fixedly secured to the carriage plate defines a slide channel which is adapted to receive therein a slide member which is approximately horizontally movable with respect to the vertically movable carriage plate. A cam arm is rotatably mounted in the housing and a cam roller is secured thereto. A cam follower is fixedly secured with respect to the slide member in a position adjacent the cam roller. Rotation of the cam arm causes engagement of the cam roller and cam follower causing movement of the slide member within the slide channel. With this configuration the vertical movement of the carriage with respect to the housing will cause cyclical horizontal movement of the slide member.

Abstract: A suction type inlet head, adapted for coupling to a fire hose or the like, is lowered into a tank, such as a portable tank known as a "dump-and-go" tank used in fighting fires in rural areas. The suction or inlet head is heavy enough to gravitate to and remain in stable position upon the bottom of the tank, and to this end has a flat weighted base plate which lies directly upon the bottom of the tank. The base plate supports, in a position slightly elevated above the tank bottom, an inlet nozzle retaining plate, having a wide transverse slot for receiving a transversely extending suction cylinder eccentrically, pivotally mounted upon the base. The suction cylinder merges into a hollow connecting portion on which there is provided a hose coupling for connecting the fire hose in communication with the cylinder.

Abstract: An oil heated motorcycle handlebar construction is enclosed utilizing an oil line extending from the engine or oil pump of the motorcycle engine to carry the warm oil to a sealed conduit defined along the interior of the handlebars. The intake line extends from the point of entry into the handlebars to the outermost end of one handle. An exit line is included extending from the outermost end of the opposite handle to carry the oil from the handlebar interior back to the oil tank of the conventional motorcycle engine. The intake line and the oil line include an intermediate aperture in order to minimize the heating of the portions of the handlebars adjacent to the gripping sections during operation of the motorcycle during the warmer months. Access to the interior of the oil chamber defined within the handlebars is provided by removable stoppers in the outer ends of each of the arms of the handlebar.

Abstract: An adjustable dumbbell apparatus is disclosed which is particularly adapted to maintain the arms of the exerciser in a straight orientation when used with weighted members which includes a circumferential member defining a hole therethrough through which the arm of the exerciser is adapted to extend. A first and second strut are fixedly secured to the circumferential member to be parallel with respect to the hole therein and extend upwardly therefrom. A grip extends between the upper ends of the struts such that the user can grasp this grip when his arm is extending through the hole in the circumferential member. A weighted support bar is adapted to extend outwardly from the circumferential member and is fixedly secured thereto. The weighted support member extends outwardly perpendicular approximately with respect to the axis of the hole in such a fashion as to use the weights when placed on the weight support member to urge the arm of the exerciser into the straight orientation.

Abstract: A carrier clamp for fire ladders of the folding type, is adapted to be mounted upon a fire truck or the like. A pair of the clamps, when so mounted, accommodate a folding ladder of the type in which the side rails are collapsed into longitudinally contacting engagement. The clamp includes a body having a ladder-receiving recess which may open either upwardly or laterally, depending upon which of two permitted mounting arrangements is selected. The ladder-receiving recess is normally closed by a spring-biased handle, which can be swiftly grasped and pivoted to an out-of-the-way position, to permit swift removal and setting up of the ladder under emergency conditions.The clamp device incorporates removable spacers, to adjust the sides of the ladder-receiving recess to folded ladders of differing widths. In each case, the spacer block includes a cam surface adapted to bear against the ladder when the ladder is forced against the spacer block by the spring biased handle, to hold the ladder securely.

Abstract: An inflatable life preserver of the encapsulated type encircling the neck of a wearer includes an inflatable cell or cells confined within a protective cover when in collapsed condition. The cover, formed of a strong fabric or other flexible material, comprises a pair of panels between which the cell is confined. The panels are premanently secured along the edge of a neck-encircling, center opening of the cover. The outer edges of the panels are separably connected, to confine the collapsed cells. Inflation of the cells causes separation of the panels. A protective flap is substantially coextensive in area and configuration with the panels, and lies between the panels so that the cover is in effect composed of three layers. The cells are confined between the flap and one of the panels, the flap being secured along its outer edge to said one panel while having its inner edge left free.