Abstract: An improved exercising device of the type shown in U.S. Pat. No. 3,858,874. A pair of lines or cords pass over sheaves in pulley blocks carried on a rigid member attachable to a fixed support. The rigid member is sufficiently elongated to hold the sheaves or grooved pulleys in operative position when there is tension on only one or the other of the lines. Hand grips are provided with adjustable fittings at the ends of the lines so that the hand grips can be held in a desired position relative to the line extending from the grip. Foot stirrups are provided for each foot in the form of a cradle with openings for the front part of the foot in the form of a cradle with openings for the front part of the foot, the heel, and the ankle bones.

Abstract: The invention is particularly adapted, but not limited to, control of hand-launched gliders. A weight or mass is suspended in the manner of a pendulum below the aircraft. The weight is controllable by a gimbal mechanism which allows the weight to be swung fore and aft and laterally. The gimbal mechanism includes members mounted to be rotatable about a fore and aft axis and a lateral axis, which axes intersect and are perpendicular to each other. Radio controlled servomotors are provided for individually rotating the gimbal members for controlling the position of the weight or mass for controlling the aircraft in flight. The servomotors are controlled by a radio by way of separate frequency channels.

Abstract: The drapery and pin-hook dispensing and inserting tool is of a pistol grip type construction having a pin-hook chamber for a charge of pin hooks for gravity feed without a separate magazine. At the position of the handle or grip is a thumb actuated pin-hook feeder or dispenser and inserter. The pin-hook chamber is internally configurated to conform to the contour of pin-hooks so as to hold a line of pin hooks in position for dispensing. The chamber is provided with a hinged door so that a fresh charge or supply of pin-hooks can be inserted as a unit to be held in the chamber by its internal configuration and the configuration on the inside of the door. The handle or grip preferably is at a 90.degree. angle to the chamber.

Abstract: Unique constructional improvements in constructions involved in pumping. The invention is particularly adapted in deep well pumps which may be water or oil pumps or otherwise. The invention greatly reduces the mass of moving parts thereby proportionately reducing the energy required for pumping operations. Dual pistons are utilized which reciprocate oppositely, being connected by a cable passing over a pulley. Heavy sucker rods and pistons are eliminated. The pistons are light-weight with light-weight bellows-type seals. The pistons are activated by way of cables rather than sucker rods. Further gains are realized by minimizing the size of the piping utilized. This end is realized by way of an offset staggered relationship of the operating pistons in a smaller pipe or by way of plural pistons arranged in vertical array or assembly.

Abstract: An acoustically mounted valve assembly controlling the flow with respect to a tank. The purpose is to eliminate noise. An elastomeric or rubber ring is provided around an inlet pipe and is secured to the tank wall by a spud. The elastomeric ring has an untionsioned annular part which carries a mounting ring which supports the inlet pipe and the valve assembly. The mounting eliminates or reduces noise to a minimum and prevent the tank from acting as a drum.

Abstract: An epitrochoidal Stirling type engine operating on a carnot cycle. The engine has a hot end and a cool end. Each end has a three-lobed rotary piston or rotor eccentrically mounted. Each rotor is in a four-lobed housing. Between the rotors, coaxially mounted is a cam similarly eccentrically mounted which is captured between peripherally mounted rollers so as to guide it in an orbit with precision. The cam is secured to the rotors so that they similarly orbit in precision in their housings to eliminate peripheral seals. Lobes of the two rotor housings are connected in pairs, the lobes of each pair being angularly spaced 90.degree.. There are connections for fluid flow between pairs of lobes with regenerators in the connections. The thermodynamic cycle corresponds to that of the Stirling engine. Heat is applied to one end of the engine and heat is discharged at the other end. The engine produces a power output.

Abstract: A self-wringing mop having a head which is attached to a handle and having a mop holder for holding a mop unit with a crank carried by the head which can be turned for wringing the mop. Improvements reside in a clamping member configurated to be received by the head and which clamps the mop holder to the head with the crank having a crank pin which passes through the clamp member and the head and to which is attached a stem forming part of a mop spreader at the other end of the mop unit. The number of parts is reduced and are of simplified construction providing for ease of fabrication and assembly. The parts are held together by way of the crank pin on the crank which is secured to the stem on the mop spreader.

Abstract: Safety arming solenoid for use with missiles. Pivoted jaw means retain the end of an arming wire or cable that connects to the missile. A solenoid controls opening of the jaw means. The solenoid is a rotary type having a stem with an end part positionable angularly to restrain the jaws against opening or to release them. In a modified form, a second coil is provided whereby the solenoid armature has linear as well as angular motion for actuating the jaws in response to linear movement.

Abstract: A device or mechanism which converts rotary motion into linear motion. The mechanism is well adapted for converting rotary movement of a pulley which is driven by a stepper motor responsive to signals from a computer into linear motion of a magnetic head. The magnetic head is mounted on guides for linear movement with respect to a record. A flexible metal band is wrapped around and attached to the driven pulley, the ends of the band extending tangent to the pulley and parallel to each other, the ends being secured to the block or carriage carrying the magnetic head. Angular movement of the pulley tends to unwrap one end portion of the band and to wrap the other portion thereby moving the block carrying the head linearly.

Abstract: Securement of flat heat exchange surfaces, particularly fins to tubular conduits of a heat exchanger. The heat exchange material is formed into upper and lower, or first and second pieces having longitudinal, partially circular recesses parallel to the length of a tube for engaging opposite sides of the tube. The radii of the recesses corresponds to the outer diameter of the tube. The recesses extend through less than 180.degree. so that the flat parts of the heat exchange surface are spaced leaving a gap prior to securement to the tubes. The two pieces are initially formed to interengage in such a way that they can be joined by lock seaming on opposite sides of the tube. Forces are applied to the interengaged pieces, forcing them together, stretching the heat exchange material at the recesses, thereby producing a tight interference fit between the heat exchange surfaces and the tube to provide minimum resistance to conduction of heat and at the same time securing the pieces together by lock seaming.

Abstract: Securement of flat heat exchange surfaces, particularly fins to tubular conduits of a heat exchanger. The heat exchange material has longitudinal, partially circular recesses parallel to the length of a tube for engaging opposite sides of the tube. The radii of the recesses corresponds to the outer diameter of the tube. The recesses extend through less than 180.degree. so that the flat parts of the heat exchange surface are spaced prior to securement to the tubes. Forces are applied normally to the surfaces, forcing them together, stretching the heat exchange material at the recesses, thereby producing a tight interference fit between the heat exchange surfaces and the tube to provide minimum resistance to conduction of heat. Securement may be by spot welding, riveting, or otherwise. The tube remains round and undeformed so the cross sectional heat exchange area remains the same.

Abstract: A protective armor device adapted for use with machines having openings, particularly slot openings such as bill changers and the like. An armored frame is provided that can be secured to a machine with an opening such as a slot overlying the slot opening in the machine. The armored frame has a rigid bar adjacent to and overlying the slot opening. It also has a protective shield spaced outwardly from the opening and the bar, having a top edge at a level above the bar. The spacing of the bar and the top edge and the height of the top edge is set so that it is impossible to insert a crowbar or the like into the opening in the face plate and in the machine.

Abstract: Apparatus for use in fabricating pleated materials, particularly for forming pleats in drapery materials such as swags and cascades. The apparatus greatly facilitates and eliminates some certain hand operations. A plurality of parallel upstanding spaced members is provided. The members are connected by adjustable lazy tongs means so that the members are adjustable to a desired uniform spacing. The members may be either straight or they may be of curved configuration for making swags. The material is placed over the members and then uniform pleats are formed over the members with the pleats then being held to the members by holding devices. The members are constructed so that they can be manipulated or actuated to hold all the pleats which are then secured by stapling prior to the removal of the completed material and final fabrication.

Abstract: A tri-axis crash survivable seat, utilizing a plurality of energy absorbers, which are swivel mounted to the seat bucket and also to a frame where the frame is securely fastened to the structure of a rotary wing or fixed wing aircraft. The energy absorbers are utilized in upper, intermediate and lower pairs, each having different energy absorbing characteristics, stroking distances, and force-displacement relationships from the other pairs. The energy absorbing devices attach to the bucketseat and supporting frame so as to permit tri-axial energy absorption during impact for various vertical or combined vertical impact angles. Each of the intermediate pair of energy absorbing devices is a two stage device designed to minimize the dynamic overshoot associated with the elasticity of the human body, such that a reduced probability of injury is obtained. Energy is dissipated in a controlled manner through the process of the displacement of the seat relative to the craft under arbitrary crash conditions.

Abstract: A hose end protector is disclosed herein intended to be carried on the end of a hose so as to surround and forwardly project ahead of a threaded coupling for its protection. The protector includes an elongated guard skirt having a connection portion adapted to engage with the hose so that the guard skirt extends about the threaded coupling in spaced relationship whereby the threads of the coupling are protected from damage. In one form, the connection portion includes internal threads matable with the threaded coupling and in another form, the protector is in two parts threaded together, the inner part having internal threads matable with the hose coupling.

Abstract: A record drive and positioning assembly particularly adapted for disc records used for recording of digital information and for use in association with computers. The unit embodies a record driving spindle or hub and clutch. The record is insertable into the unit through a hinged door. Ejector mechanism is provided in association with a latch, the ejector being operative to eject the record unless it is inserted fully in a latching position. The mechanism provides for "feel" so that the operator will know when the record is fully inserted. During closing of the door, a pin will unlatch the ejector allowing the ejector to move the record sufficiently to cause it to accurately register with the driving hub and clutch. When the door is opened by being lifted, the ejector will eject the record from the unit.

Abstract: A pilot operated ball cock valve for controling the height of fluid in a tank. The rotary pilot valve has an inlet port and an outlet port which are interconnected and communicate with a fluid channel which bypasses an evacuation chamber and a diaphragm valve permitting fluid to flow directly to the inlet port of the rotary pilot valve. The outlet port of the rotary valve is positioned by a predetermined fluid height in the tank into alignment with a fluid channel which transmits fluid pressure into a pressure chamber above the diaphragm. Such positioning allows fluid pressure to act upon the diaphragm which closes a discharge orifice thereby preventing flow of fluid into the tank. A decrease in fluid height in the tank induces the rotary pilot valve to rotate such that the outlet port will move out of alignment with the fluid channel leading into the pressure chamber.

Abstract: A carpet seaming tape comprising a tape base with yarns thereon and having a layer of adhesive thereover with a plurality of spaced apart rows of adhesive formed thereon and extending longitudinally along the tape. The yarns have a heat sealant emulsion rolled onto their backs. The layer and rows of adhesive are melted upon the application of heat, and the heat sealant maintains the adhesive above the tape base so as to be available for securement to the carpet. The backs of two adjacent portions of carpet are then pressed against the tape and are bonded thereto providing a seamless appearance.