Abstract: A magnetic shield for a locking device such as a gunlock having a first portion and a second portion configured for controlled movement with respect to the other portion and for being held in a fixed and locked position vis-à-vis each other. At least one of the first and second portions includes an electromechanical locking mechanism including a solenoid and solenoid activated spring loaded pin configured, in a first position, for preventing the first and second portions from moving with respect one another and in a second position for allowing the first and second portions to move vis-à-vis one another. A magnetically conducive shield is disposed on or in at least one of the first and second portion that includes the solenoid locking mechanism, for preventing an unauthorized magnetic field from causing the solenoid to retract the spring loaded pin thereby allowing the locking device to be opened.

Abstract: An apparatus for adapting a clamshell-type of gunlock for a shotgun to lock a rifle. The clamshell gunlock can be easily modified using the apparatus without the need for basic changes to the gunlock. The apparatus has a single molded rubber part attached to the gunlock to hold the buffer tube of a rifle; providing a snug fitting constraint to hold the buffer tube of the rifle such that the rifle will not vibrate or move causing rattling sounds or damage to the rifle.

Abstract: A magnetic shield for a locking device such as a gunlock having a first portion and a second portion configured for controlled movement with respect to the other portion and for being held in a fixed and locked position vis-à-vis each other. At least one of the first and second portions includes an electromechanical locking mechanism including a solenoid and solenoid activated spring loaded pin configured, in a first position, for preventing the first and second portions from moving with respect one another and in a second position for allowing the first and second portions to move vis-à-vis one another. A magnetically conducive shield is disposed on or in at least one of the first and second portion that includes the solenoid locking mechanism, for preventing an unauthorized magnetic field from causing the solenoid to retract the spring loaded pin thereby allowing the locking device to be opened.

Abstract: A magnetic shield for a locking device such as a gunlock having a first portion and a second portion configured for controlled movement with respect to the other portion and for being held in a fixed and locked position vis-à-vis each other. At least one of the first and second portions includes an electromechanical locking mechanism including a solenoid and solenoid activated spring loaded pin configured, in a first position, for preventing the first and second portions from moving with respect one another and in a second position for allowing the first and second portions to move vis-à-vis one another. A magnetically conducive shield is disposed on or in at least one of the first and second portion that includes the solenoid locking mechanism, for preventing an unauthorized magnetic field from causing the solenoid to retract the spring loaded pin thereby allowing the locking device to be opened.

Abstract: A magnetic shield for a locking device such as a gunlock having a first portion and a second portion configured for controlled movement with respect to the other portion and for being held in a fixed and locked position vis-à-vis each other. At least one of the first and second portions includes an electromechanical locking mechanism including a solenoid and solenoid activated spring loaded pin configured, in a first position, for preventing the first and second portions from moving with respect one another and in a second position for allowing the first and second portions to move vis-à-vis one another. A magnetically conducive shield is disposed on or in at least one of the first and second portion that includes the solenoid locking mechanism, for preventing an unauthorized magnetic field from causing the solenoid to retract the spring loaded pin thereby allowing the locking device to be opened.

Abstract: An apparatus for adapting a clamshell-type of gunlock for a shotgun to lock a rifle. The clamshell gunlock can be easily modified using the apparatus without the need for basic changes to the gunlock. The apparatus has two parts: a first insert, attached to the base of the gunlock to reduce the volume of the gunlock to hold a rifle; and a second insert, frictionally attached to said first insert to provide a snuggly fitting constraint to hold a portion of the rifle such that the rifle will not vibrate or move causing rattling sounds or damage to the barrel.

Abstract: A security apparatus to prevent unauthorized opening of a ratchet type gunlock. A hook is permanently anchored to the housing of the lock and a groove is provided in the rotatable ratchet arm. When the hook is within the groove this forms, in essence, a closed loop so that the only way to force open the ratchet arm is to break the lock by breaking the hook or the arm even if the gunlock is attempted to be opened by severe force.

Abstract: A security apparatus to prevent unauthorized opening of a ratchet type gunlock. A hook is permanently anchored to the housing of the lock and a groove is provided in the rotatable ratchet arm. When the hook is within the groove this forms, in essence, a closed loop so that the only way to force open the ratchet arm is to break the lock by breaking the hook or the arm even if the gunlock is attempted to be opened by severe force.

Abstract: A security apparatus for a ratchet type gunlock that has a ratchet for locking the gunlock. The security apparatus prevents the gunlock from being shimmed using shimming techniques well known in the art. A star-shaped cogwheel having asymmetrical teeth prevents the shim from reaching the locked ratchet. The security apparatus also provides an extended ratchet latching assembly that features a pivot and a unique shoe-shaped latch that attaches to a plunger via a ball head such that the connections provided between the three elements of the latching assembly enable the latching assembly to remain locked despite severe impact, wrenching or shaking, yet can be easily opened even once the forces being applied to the gunlock ceases even when the deformation to the gunlock is irreversible.

Abstract: A security apparatus for a ratchet type gunlock that has a ratchet for locking the gunlock. The security apparatus prevents the gunlock from being shimmed using shimming techniques well known in the art. A star-shaped cogwheel having asymmetrical teeth prevents the shim from reaching the locked ratchet. The security apparatus also provides an extended ratchet latching assembly that features a pivot and a unique shoe-shaped latch that attaches to a plunger via a ball head such that the connections provided between the three elements of the latching assembly enable the latching assembly to remain locked despite severe impact, wrenching or shaking, yet can be easily opened even once the forces being applied to the gunlock ceases even when the deformation to the gunlock is irreversible.

Abstract: The present invention relates to a snow-and ice dissolving composition comprising an aqueous solution of urea and ammonium-nitrate. The aqueous solution has a mass ratio of (4.5-5.5):(3.6-4.4):(6.3-7.7). In addition, 1.5-2.0 mass per cent of benzoic-acid and/or 0.10-0.25 mass per cent of benzo-or tolyl triazol as corrosion inhibitors can be added.

Abstract: A frost resistant glycol-free coolant composition or process for cooling apparatus is used for cooling, with such composition, which comprises an aqueous solution of a water soluble alkali metal salt, or a mixture of two alkali metal salts. Particularly suitable alkali metal salts are alkali metal acetate and alkali metal formate. Depending on the nature of the particular alkali metal salt or salts, and the extent of frostproofness that is required, the compositon can further contain urea and/or a glycol antifreeze, such as ethylene glycol. Optionally a corrosion inhibitor can also be used.

Abstract: The invention relates to an apparatus for the classification of solid materials, preferably that of hard and highly pure materials, comprising a housing provided with an inlet stub, fine fraction outlet stub and a coarse fraction outlet stub as well as vane-crowns. The fluid carrying the material to be separated or classified radially passes through two vane-crowns with the vanes oriented at an angle to the tangent of the vane-crowns. Upon passage through the first vane-crown the separating or classifying chamber is reached whereupon the coarse fraction is separated out and the fluid flows radially through the second vane-crown whereupon the flow becomes axial with the fluid exiting against gravity and the separated material being collected below in a closed storage tank associated with the coarse product outlet stub.

Abstract: The present invention relates to a priming or body paint having active anti-corrosive and surface cleaning effect containing binding material, pigment and optionally solvent, filler and/or additives, characterized in that said pigment, optionally in addition to other known pigments, comprises:(a) 30-70% parts by weight, preferably 40-55% by weight of alumina hydrate (Al/OH/.sub.3),(b) 20-55% by weight of at least of one of atoxic oxides, hydroxides, oxide hydroxides, carbonates or phosphates of amphoteric elements or metals of variable valency possessing less valency than the maximum, in case of aluminum the oxide or hydroxide thereof,(c) 0-50% by weight, preferably 2-15% by weight of calcium and/or magnesium carbonate,and the grain size thereof is <20 .mu.m, preferably 2-10 .mu.m.

Abstract: According to the process the grains are led to the surface or ducts of a rotary element farther in than the flange of the rotary element, thus the coarse grains are led to the flange of the rotary element in a counterflow to the sizing medium. In a housing on an impeller deflecting elements are arranged, the carrier medium and the mixture of material to be sized are fed into the housing by medium inlet tubes, and led out by coarse and fine fraction outlet tubes or nozzles, and one inlet disc is arranged above the impeller so that they form an annular assorting space which is divided by deflecting elements into segments, and a passage connected to the inlet tube of the sizing medium is formed between the mantle of the inlet disc and the inner wall of the housing at its upper end, where ducts leading into the assorting space are arranged in the inlet disc farther in than its flange, and which are connected to the carrier medium inlet tube.

Abstract: The invention relates to a heat transfer liquid which comprises 2 to 12 parts by weight of water, at most 4 parts by weight of urea and/or formamide and/or dimethyl formamide, at most 7 parts by weight of ammonium nitrate and optionally ethylene glycol at most of the same volume than that of the above-listed components as major components with at most 0.3% by weight or by volume of corrosion inhibitors calculated for the total weight or volume of the liquid.Using the heat transfer liquid of the invention the drawbacks derived from the application of glycol can be completely or in most part eliminated and a non-toxic heat-transfer liquid suitable for isopiestic drying can be also prepared.

Abstract: A method is disclosed for forming a paperweight which has the resultant sculpted form of a crumpled sheet of paper. The method includes the steps of heating a vinyl sheet until it is soft and pliable and wrapping that sheet about a metal weight to take the above mentioned rigid form when it is cooled down.

Abstract: An improved process for accelerating the digestion process in the Bayer alumina process is provided which promotes both the goethite-hematite conversion and a more perfect and quick dissolution of the diaspore. The above is achieved by carrying out the digestion in the process of 5-20% by weight calculated on the dry weight of the bauxite of a novel hydrogarnet catalyst.