Abstract: A bracket plate type of scope sight mounting for archers, which may be constructed for mounting on a bow, either rearwardly of the bow toward the archer or forwardly of the bow away from the archer, has a rack and pinion mechanism for adjusting range of an arrow's flight, the rack of which mechanism is curved along its length and is affixed to an elongate bracket plate which is adapted to itself be affixed at one of its ends to a bow. The rack fits into an open, slideway groove formed in and extending transversely of the longitudinal extent of an elongate scope sight mounting block that is adapted to be slidably attached to the bracket plate, at one face thereof for up and down movement relative thereto, by structure including the pinion of the rack and pinion mechanism and desirably by a special washer assembly that provides resiliency.

Abstract: An improved system for anchoring a partial or full denture in place provides one of the anchor members of the usual pair of matingly interconnecting anchor members in two separate parts, rather than a single unitary part, so that the base part thereof can be embedded permanently in the tooth-holding material of the denture and the other part thereof, which is the matingly interconnecting part, is adapted to matingly interconnect with the other anchor member of the pair of such anchor members in the usual manner, the two separate parts being themselves matingly interconnected, as by screw threads, for quick and easy separation and engagement of a replacement matingly interconnecting part when necessary because of wear.

Abstract: An eyeglass retainer, which also provides protection for the ears, comprising an adjustable two-piece headband having tubular members for receiving and holding the temples of a pair of eyeglasses threaded therethrough, and wherein the tubular members hook over the user's ears when the eyeglass retainer is emplaced in operable position on a user's head, and wherein the eyeglasses are firmly retained in position due to the tubular members being snugly emplaced between the headband pieces and the user's head.

Abstract: The carrier cage of the invention is dual compartmented, with an open-walled living compartment at one end and a closed-walled sanitation compartment at the opposite end divided by a position having a passageway therethrough for arrival movement between the two compartments. The sanitation compartment is provided with a removable litter box preferably located under an apertured floor with provision for moving the litter box as a drawer. Space under the floor of the living compartment may be used to store grooming and other useful articles.

Abstract: Apparatus for use in testing muscle strength comprising a transducer including strain gauges mounted to provide deflection readings that will be accurate for even different directions of force application and read out apparatus receiving strain gauge data and for displaying output data indicative of muscle strength.

Abstract: A process for froth flotation for the recovery of sulfide minerals, or sulfidized oxide minerals, from their ores utilizing a 5-Alkyl, 5-Alkenyl, or 5 Aryl-1,3,5,-Dithiazine as a collector reagent, either alone or in combination with other known collector reagents in the froth flotation of an aqueous pulp of such ores.

Abstract: A disposable liner to be placed inside a hard hat, or similar protective head covering, so as to be in direct contact with a wearer's forehead. The liner is formed of an absorbent material such as terry cloth which has a pressure sensitive adhesive on one side thereof. The adhesive removeably secures the liner to the normal forehead contacting flap of the hard hat. The liner absorbs sweat, cushions from minor protrusions, and insulates from cold temperatures.

Abstract: An apparatus and method for the purification or water using a multistage purification system which can be connected to a source of potable water under pressure. The multistage purification system has a cylindrical pressure vessel supported on a circular leg which is capable of stable disposition on a level surface such as a countertop. The pressure vessel has a top member and a base member connected in sealed engagement. The base member has an inlet for receiving water into the pressure vessel and an outlet for discharging reject water from the pressure vessel. Housed within the pressure vessel is a plurality of purification mediums disposed in concentric disposition. In the core area of the pressure vessel, an interchangeable core member may be removably connected to the pressure vessel. Each interchangeable core member houses an additional medium for purifying water and a pure water outlet through which the purified water passes for use by the user.

Abstract: A strap device for retaining in coiled condition of a coiled length of slender flexible material, such as an electrical extension cord, and for hanging it for storage, comprises a length of flexible strap material attached to a buckle formed to receive opposite end portions of the strap such that a relatively large loop can be provided by one of the end portions of the strap to encircle the coiled length and a relatively small loop can be provided at a doubled back-on-itself part of the other of the end portions of the strap to receive and retain an end portion of the coiled length, a cinch slide member being variously provided for closing the loop tightly about such received end portion of the coiled length, and a suspension-hook-receiving member being provided in preferably the end portion of the strap that provides the relatively small loop.

Abstract: A flow control and pressure reducing valve has a valve body with an inlet chamber and outlet chamber separated by a partition plate. A plurality of passages are formed in the valve body spaced circumferentially around the partition plate and have an inlet portion opening into the inlet chamber and an outlet portion opening into the outlet chamber. Elastomeric flow control means are positioned in the passages and are responsive to pressurized fluid introduced therein to control flow of fluid through the passages around the partition plate. The valve configuration allows the mounting of inlet and outlet gates within the inlet and outlet chambers to eliminate the need for separate gate valves. An auxiliary flow passage may be provided through the partition plate and flow controlled therethrough to increase the flow capacity of the valve jet still provide full flow and pressure control. Air inlet and relief valves may also be provided as an integral part of the valve.

Abstract: A method and apparatus are disclosed for separating ions from a liquid through use of static fields generated by permanently polarized members such as electrets which cooperate with membranes that act as mechanical inhibitors in encouraging positive ions to remain with a positive region of the apparatus and negative ions to remain within a negative region of the apparatus, thereby leaving a relatively ion-free effluent in a neutral region of the apparatus. The ions are separated through static electrical fields, which are permanently generated by the polarized material. The separation is enhanced by pressurizing the liquid above ambient to a certain optimum value.

Abstract: A flow control and pressure reducing valve has a valve body with an inlet chamber and outlet chamber separated by a partition plate. A plurality of passages are formed in the valve body spaced circumferentially around the partition plate and have an inlet portion opening into the inlet chamber and an outlet portion opening into the outlet chamber. Elastomeric flow control means are positioned in the passages and are responsive to pressurized fluid introduced therein to control flow of fluid through the passages around the partition plate. The valve configuration allows the mounting of inlet and outlet gates within the inlet and outlet chambers to eliminate the need for separate gate valves. An auxiliary flow passage may be provided through the partition plate an flow controlled therethrough to increase the flow capacity of the valve yet still provide full flow and pressure control. Air inlet and relief valves may also be provided as an integral part of the valve.

Abstract: A long colored ribbon streamer is bundled preferably in zig-zag fashion in and transversely of the length of an envelope adapted to be releasibly fastened to an upper surface of a ski when skiing in deep powder snow. An end of the streamer is adapted to be fastened to the ski when skiing in the deep powder, while the envelope itself is adapted to be fastened to the skier usually through his or her ski boot. A fall in the snow that releases the ski boot and skier from the ski will cause the streamer to trail the ski at the surface of the snow that covers the ski, thereby revealing the ski's location to the skier.

Abstract: A reversible-flow filter assembly to be installed into a flow conduit, has a filter housing with a housing inner wall and an outlet socket projecting coaxially thereto centrally into the interior of the filter housing. Further, the filter housing has a guiding member arranged coaxially thereto but spaced therefrom in the filter housing. The interspace between outlet socket and guiding member is bridged by a filter forming an annulus. The inlet is connected to the annulus. A suction device engages the outer surface of the filter with a limited suction opening. The suction device forms a housing fixed annulus, which is connected to the suction opening engaging the filter and can be connected to the drain through an outlet valve. The filter is located in a filter support which is movably guided on the outlet socket by a first guiding element and on the guiding member and in the suction device by a second guiding element. A control pressure chamber below the second guiding element is connected to the annulus.

Abstract: A time delay apparatus configured to connect in parallel with a common single pole switch. For time delay operation the switch is toggled on and off again within a short time span defined as the trigger window period. This triggering results in the circuit providing power to the load for a period of time predetermined by the user, after which the circuit automatically interrupts power to the load. For manual operation the switch is turned on and left on longer than the trigger window period, after which turning the switch off results in interruption of power to the load similar to a standard wall switch.

Abstract: A fluid tight structure or vault particularly suited to having hazardous liquid storage tanks located therein for storage of liquids such as gasoline, and used as a replacement for underground storage tanks in facilities such as gasoline stations, truck stops, or industrial plants, so that the storage tanks are available for periodic inspection and any leakage from such tanks is contained within the structure to avoid contaminating surrounding ground, is constructed of prefabricated concrete panels having weldable material embedded therein where the panels meet so that the panels may be seal welded together along adjacent edges to provide the fluid tight structure. Thus, floor panels have plates of weldable material embedded therein over which wall panels having bottom edges of weldable material are placed and welded. Adjacent side edges of the wall panels are also welded. The welds provide seals between the various panels and provides structural strength to hold the panels in assembled position.

Abstract: An axial piston type motor for a hydrostatic transmission, wherein the motor is arranged to generate an output torque at the drive flange uses a Rzeppa joint (32) to couple the drive flange (10) with the cylinder barrel (16). The center of the Rzeppa joint (32) is located in the tilting point (60) between the axes of the drive flange (10) and of the cylinder barrel (16). The number of balls (42) of the Rzeppa joint (32) is equal to the number of pistons (24). The outer joint member of the Rzeppa joint (32) is formed by the drive flange (10). The balls (42) and grooves (40) of the Rzeppa joint (32) are angularly offset with respect to the ball-and-socket joints (28,30) of the pistons (24) by half the angular spacing of the ball-and-socket joints and extend up to the space between the ball-and-socket joints.

Abstract: A method of separating charged molecules having different numbers of charges thereon includes the step of passing the molecules to be separated through ion-exchange material such as an ion-exchange chromatograpy column in normal manner so that molecules to be separated bind to the ion-exchange material. Displacer molecules are then passed through the ion-exchange column to selectively release certain of the molecules to be separated from the ion-exchange material, while others of the molecules to be separated remain bound to the material.

Abstract: A crossbow incorporates a simplified trigger and bow string release assembly which includes a single piece trigger and bow string release member pivotally mounted within the stock. A spring urges the trigger and bow string release member about its pivot axis to its bow string holding position. A safety mechanism is provided to prevent rotation of the trigger and bow string release member when the safety is "on". The crossbow stock is preferably formed of two molded stock halves which are secured together to pivotally mount the trigger and bow string release member therebetween. The crossbow also preferably includes a nose piece with an integral cocking stirrup.