Abstract: An anchored land mine is provided, especially for use in rivers. It consists of a disc-shaped explosive body, together with a fuze device which is formed as an integral individual part with a banding for fastening to an explosive charge. The fuze device also contains a propagation charge which is positioned next to a thin partition of a housing of the fuze device and adjacent to an explosive charge.

Abstract: This invention relates to an indicating device that permits a sight reading of the level of liquid contained in or flowing through a flexible liquid carrier, such as a flexible hose. It particularly pertains to a hose used for the flexible connections in the cooling system of automobiles between the engine block and the radiator, but it is not limited to such use. It simplifies installation of a sight gauge for these and similar uses, and permits installation with simple basic tools.

Abstract: An endometrial tissue-obtaining instrument includes a curved spiral section formed at one end of a flat plastic member and a handle portion at the other end. The spiral section is insertable into the endometrial cavity of a female patient and rotated by the handle portion to remove endometrial tissue from the wall thereof. The spiral section is withdrawn with the specimen of tissue.

Abstract: The invention is a control mechanism for selectively operating one or more motive devices, such as multiple-speed electric motors, either separately or simultaneously in any combination of the speed capabilities thereof. In particular, the present control mechanism provides a plurality of cam elements fixed on two shafts arranged in a cruci-form conformation, the shafts being rotatable either singly or in tandem by a single control handle to engage one or more of the cam elements with contact switch elements which act to complete circuits or otherwise activate associated apparatus.

Abstract: The invention is an improved conveyor apparatus for unloading bulk material from bulk material transportation systems, such as railcars. The conveyor apparatus is provided with a housing that is waterproof to the atmosphere and tight internally against dust leakage from conveyed materials, the housing enclosing a motor-driven continuous chain having segmented Z-shaped flights attached to the chain. Two different materials can be unloaded by the present apparatus, one such material on each side of the segmented flights. The present apparatus is also capable of conveying bulk material at any angle between 0 and 90.degree. from the point of entry of said material into the apparatus, and between 0.degree. and 45.degree. from the point of entry of the materials into the apparatus when the mixing of dissimilar conveyed materials (i.e. contamination) is to be prevented.

Abstract: A pressurized aerosol package contains a metal-containing catalytic mixture of the type used in catalytic heaters. The mixture could contain, for example, chloroplatinic acid, with other materials, such as aluminum oxide, dextrose and triethanolamine all dissolved and mixed in water. In use, the mixture is sprayed onto, and impregnates, expended carrier pads of catalytic heaters to revive the pads and permit continued use of the heaters. In addition, the mixture can be sprayed into the exhaust system of an operating engine to coat the inner walls of the muffler of the system for antipollution purifying purposes.

Abstract: An arrangement and method is provided for testing the seal of a sewer lateral saddle connector assembly used in connecting a lateral or branch sewer pipe line into a sewer main at a point where there is no "T" or "Y" connector available.The sewer branch saddle connector assembly consists of a cast iron saddle which is arranged to fit over a hole to be tapped in the sewer main. A 360.degree. circular rubber "O" ring sealing gasket is provided which is cemented in a retaining groove, on the underside of the sewer branch saddle connector assembly. A stainless steel strap, together with bronze T bolts and the attaching washers and nuts, secures the sewer branch saddle connector assembly to the sewer main, thus making a water-tight connection. The male connection end is shaped to accommodate all standard couplings and adaptors.A sewer branch lateral tester is then positioned over the open end of the male connection and sealed thereto.

Abstract: The invention provides a variable work station for staple basting fabric materials, the invention comprising a work table having displaceable block-like sections which are interchangeable with block-like support members each mounting a stapling gun thereon. The support members are positioned in the spaces from which the block-like sections are removed in order to position the stapling guns in a desired location relative to the fabric work piece. The invention allows selective lateral positioning of the stapling guns over the work surface of the work station as well as allowing forward, backward, and pivotal movement of the stapling guns.

Abstract: The invention provides a splash guard for a bathtub, the present splash guard fitting about the upper periphery of the bathtub walls and having sloping surfaces which flow water incident thereon back into the tub itself.

Abstract: The present invention relates to the induction of interferon production in the cells of living organisms, including human beings. According to the invention, nucleic acid complexes, such as the polyriboinosinate and polycytidylate complex (rI.sub.n.rC.sub.n), are modified to yield unpaired bases (uracil or guanine) along the polycytidylate strand which render the complexes more readily hydrolyzable by nucleases present in living cells. The modified complexes retain their ability to stimulate interferon release by the cells but are rendered more vulnerable to destruction within the cells, the modified complexes being significantly less toxic than the original complexes. In addition, polyinosinate strand now has been prepared to contain 5-16% 2'-O-methyl inosinate residues, designated as (rI.sub.5-20,2'-MeI).sub.n. The new complex (rI.sub.5-20,2'-MeI).sub.n.rC.sub.n, exhibits 100-fold more activity than rI.sub.n.rC.sub.n as an interferon inducer in human cells.

Abstract: A push-pull transducer system is provided for the reproduction of high fidelity sound to be used with amplifiers or receivers of high quality. The system consists of connecting two loudspeakers of the same size in face-to-face relationship so that where they are joined or bolted to face each other, there is provided an airtight connection.These loudspeakers can be joined directly together using a sealant for the airtight connection, or they can be attached to a mounting board, using sealing rings, if necessary. The loudspeakers are connected in series to produce push-pull air currents for the production of sound.

Abstract: A small, portable, constant withdrawal device is connected to tubing, including a catheter, whose internal walls are coated with heparin. The catheter is inserted intravenously through a disposable needle into a subject such as a human being. The subject may then move about for a selected period when blood is being slowly withdrawn at a prescribed rate and collected in a container within a housing supporting the device. The collected blood may then be analyzed to permit the measurement of the integrated concentration of growth hormone or any substance whose concentration in blood fluctuates widely.In addition, a portable microdiffusion chamber is incorporated between the indwelling catheter and the extra corporal tubing and is electrically connected through a sensing probe to an associated portable sensory responsive device. This permits analyzation of the extracted blood to determine the in vivo concentration of circulating concentrations of the diffusable fraction of biological materials in the blood.