Abstract: The invention is a circuit interception switch for an alarm transmission system, and an alarm transmission system having an alarm activating switch, a signal transmitter, and a circuit interception switch interposed therebetween, which alarm transmission system requires two closures of the alarm activating switch for energization of the signal transmitter, the first such closure energizing a device warning the user of such closure so that the system can be reset if such first closure was unintentional.

Abstract: Water supplies are treated to inhibit the formation of scale deposits of alkaline earth phosphates, phosphonates, sulphates and carbonates using various hydrocarbon polymers which contain an amido functionality and which have been prepared by post-polymerization derivatization.

Abstract: Metalworking applications are provided with a lubricant comprised of at least one substantially saturated ester formed of a polyhydric alcohol and at least one carboxylic acid, from 5 to 15 weight percent of a partially-esterified vegetable oil, an air-oxidized vegetable oil, a high molecular weight alkali metal sulfonate salt, a high carbon amide, a high molecular weight ethoxylated organic alcohol, or mixtures thereof and from 0.5 to 3.0 weight percent of an ethylene homopolymer, a polymer derived from ethylene and ethylenically unsaturated carboxylic acid monomers, oxidized derivatives of ethylene polymers, or mixtures thereof. The lubricant is applied to metal in molten form.

Abstract: A method for the removal of over-sprayed paint solids which comprises contacting the over-sprayed paint solids with an oil-in-water emulsion until the emulsion is loaded with at least 5 parts by weight of paint solids per 100 parts by weight of the hydrocarbon liquid of the emulsion.

Abstract: A method of stabilizing an aqueous solution of alkali metal aluminate comprises admixing an aqueous solution of alkali metal aluminate having a pH of at least 10 with a sufficient amount of carboxylate-containing vinyl polymer to form a solution containing fron 0.1 to 2.0 weight percent of an anionic vinyl polymer based on alkali metal aluminate solids, and a stabilized aqueous alkali metal aluminate solution.

Abstract: Polymers containing as little as 5 mole percent of 1-acryloyl-4-methyl piperazine are superior flocculants for treating raw sewage sludges and sludges obtained by biological degradation.

Abstract: A stabilizer for glycol or glycol ether based aqueous coolant compositions comprising a combination of certain organic phosphonate compounds and certain organic silicon compounds, and coolant compositions containing such a stabilizer and methods of stabilizing coolant compositions by the addition of such stabilizer.

Abstract: A cartridge lock having an elongated body and a rotary disc assembly, locking shaft, and at least one bolting element disposed therein. The rotary disc assembly comprises a plurality of discs aligned concentrically within a cylinder, which cylinder is interconnected to one end of the locking shaft by means transmitting turning force thereto. The bolting element is disposed within an aperture within the body and is moved to a position partially protruding therefrom when a bearing surface of the locking shaft is rotated and presented to the bolting element. The rotation of the locking shaft is determined by key action turning the rotary disc assembly from a locked to an unlocked position and the reverse.

Abstract: The present invention provides freeze conditioning compositions for reducing moisture freezing problems found with moisture containing particulate solids, such as coal and ores and the like, comprising an alkylene polyol, such as ethylene glycol, and an effective amount of a cationic surface active material, preferably such cationics with at least one hydrophobic moiety. The preferred cationics are those with HLB of at least 11 or cationic compounds containing at least 18 total carbons, and those that are quaternary ammonium salts.The present invention also provides methods of reducing such moisture freezing problems comprising applying to at least some of the surfaces of moisture-containing particulate solids a composition comprising an alkylene polyol and an effective amount of a cationic surface active material.

Abstract: The present invention provides a drawing table for use in the fields of drafting, architecture, computer graphics, and graphic arts and the like wherein the drawing table includes means allowing projection of an optical image from below onto the working surface of the table at a plurality of angles of impingement allowing the image to be traced and/or overlaid with another image at the working surface without interference with the optical image from the body or instruments of a worker positioned over the working surface and allowing the optical image to be distorted to other perspectives as desired and allowing scale variations by movement of the components of the table substantially along the horizontal or at inclines from the horizontal, and permitting the working surface of the table to be disposed at inclines from the horizontal without loss of the other advantages.

Abstract: The present invention provides a process for producing pulp which includes the step of adding alkaline salt of aluminate to pulp material to reduce energy consumption in the mechanical treatment of the pulp material, and alkaline salt of aluminate for use in such a process and pulp as produced by such a process. In preferred embodiments, the present invention provides such a process for producing pulp at a wet pulp material maximum pH of about 8.5, and a process that includes the step of adding at least one pound of alkaline salt of aluminate per dry ton of end product pulp, and a process where the mechanical treatment is a mechanical refining process, particulary mechanical treatments that are at least a part of treatments known generally as refiner mechanical pulping and thermo mechanical pulping, and alkaline salt of aluminate for use in such processes and pulp as produced by such processes.

Abstract: The present invention provdes an additive for reducing brightness loss upon pulp refining comprising in combination at least one anionic polymeric compound and at least one inorganic polymer, preferably such combinations wherein any of such anionic polymeric compounds are of low molecular weight. The preferred inorganic polyphosphates of such combination are those having average polymerization numbers of from about 10 to about 45. The weight proportion of inorganic polyphos-hate to anionic polymeric compound in such combination can be within the range of about 1:10::10:1.The present invention also provides pulp refining processes wherein such additive is added at a sufficient amount to the pulp material being refined to reduce brightness loss, such as at dosages of from about 0.0025 to about 0.5 weight percent additive actives to dry pulp, and end product pulps produced by such processes.

Abstract: The present invention provides a method for reducing slag build-up in cyclone furnaces comprising introducing into a cyclone furnace at least one of a slag viscosity modifier and a combustion adjuvant, wherein a substantial portion thereof is conveyed to the walls of the furnace by addition through the secondary air stream. Preferably the additives are formed as particles of sufficient size and density that they are driven directly to the walls of the furnace. This method alleviates slag build-up caused by the presence of uncombusted coal particles at the walls and increases the temperature environment at the walls.

Abstract: The invention provides on improved process for preparing a screen stencil, and a screen stencil prepared by the process. The process includes the steps of placing a porous support for a screen stencil over a mounting plate, saturating the porous support with a substantially carrier-free radiation curable composition. A backing plate is placed over the saturated porous support and rolling pressure is applied to the backing plate while allowing any excess composition to flow out from between the mounting plate and backing plate. The composition is then exposed to radiation through a positive disposed opposite the backing plate, and thereafter, uncured composition is removed from the porous support.

Abstract: An alarm activating device is provided for closing a normally open circuit upon release of body pressure upon the rearward wall of the device, comprising a first, second, and third plate supported respectively in substantially parallel alignment behind a mounting plate, which mounting plate is adapted to be secured behind a belt in close proximity to a body, the first and third plates being spaced-apart and movable together from a position wherein one contacts the second plate, to a position where the other contacts the second plate, including means for applying constant positive pressure to the first plate opposite the second plate, and further including a first and a second contact in series circuit relationship, supported adjacent one another in alignment on the first and second plates.

Abstract: There is provided an improved storage unit including a framed shell and a storage-compartment insert that is to remain stationary during use, wherein an open end is provided for access to the storage compartment, which open end is enclosed by a vertically moveable door which is guided on tracks on the sides of the shell's frame and is received into a space between the top of the shell and the top of the insert.

Abstract: A method is provided for reducing spoilage of high moisture grain resulting from mold growth. The high moisture grain is treated on all surfaces with ethyl alcohol or an ethyl alcohol solution containing a microbial preservative. Spoilage as by mold growth is retarded for over a year while the products are stored at ambient temperatures.

Abstract: A moisture indicator is provided suitable for use in determining the wet-dry cycle of the soil surrounding cultivated plants. The soil moisture indicator comprises an upper and lower chamber with an interconnecting passageway across which is positioned an absorbent supporting material impregnated with a moisture sensitive indicator composition. The lower chamber has a bottom opening which upon insertion into the soil results in the relative humidity in the lower chamber being related to the wetness of the soil. The upper chamber is partially transparent and may optionally be vented to the outer atmosphere.

Abstract: There is provided a self-watering apparatus for growing plants comprising a soil retaining compartment and a first and second water reservoir compartments, the first reservoir compartment being of substantially lesser cross-sectional area than the second. The second water reservoir compartment is open to the atmosphere and by virtue of an interconnection between the first and second reservoirs, maintains the water level in the first. The apparatus provides three zones through which a root grows, a soil zone, an air zone and a water zone, which air zone is maintained at high humidity by virtue of the small cross-sectional area of the first water reservoir zone, which prevents injury to roots growing into the water zone and encourages root growth toward the water zone.

Abstract: A baler adapted to be pulled behind and powered by a PTO-equipped tractor for picking up a windrow of hay and rolling the hay into a cylindrical bale of substantial size and weight. The baler includes a bale-supporting lower belt and a plurality of upper bale-forming belts superposed over the lower belt, together defining the upper and lower parameters of bale-forming zone. The upper belts are driven by a pair of drive rollers disposed above the forward portion of the lower belt. A press roller is disposed closely adjacent to the forward portion of the lower belt and together with one of the drive rollers defines the forward parameter of the bale-forming zone. A pickup delivers the windrwed hay beneath the press roller and into the zone. The baler includes a gate structure above the lower belt pivotable rearwardly as the bale size increases. Journalled on the lower end of the gate is a roller engageable with the upper belts and which defines a rear parameter of the bale-forming zone.