Abstract: A tool, for preparing broken stud bolts or the like for extraction by screw extractors and more specifically is a guide for centering a center punch and/or a drill on a the broken face of a stud, comprises a nut and a shaft assembly. The nut has a central bore therethrough having a first portion threaded to mate with the stud threads and a second portion bored to just slide over the stud threads. The shaft assembly has a cylindrical shaft having a first end and a second end and an axial bore therethrough. The shaft includes a first externally threaded portion extending from the shaft first end of threads similar to those of the broken stud and an expandable sleeve attached to the shaft second end such that threading movement of the nut toward the shaft second end axially compresses the sleeve whereby the sleeve expands radially outward. The second end of the shaft has a conical end face.

Abstract: A self-erecting guide for centering and for vertically restraining smaller than full width pallets in a transport vehicle, such as an airplane, having a floor structure and rollers connected to the floor structure and defining a roller plane for rollingly supporting pallets above the floor structure such that the pallets may roll longitudinally includes a plurality of rollers such that pallets contacting the guide contact a rotatable surface resulting in less galling and wear to guide and pallets. The guide generally includes a hinge assembly, fore and aft pivots, a frame, and erection springs. In an erect position, the hinge assembly forms a shallow inverted V in side view with hinge axis at the apex such that a moving full size pallet contacting hinge assembly top forces the hinge assembly into a retracted position below the roller plane.

Abstract: A motorcycle garage generally comprises a floor member and an enclosure for motorcycle parked on the floor member. A lid, pivotable from a closed position to an open position, includes a roof portion and a wall portion. The wall portion lower edge is pivotable about a low hinge, thereby facilitating raising of the lid. The left side wall includes a front gate sideways outwardly pivotable from a vertically oriented hinge on its rear end from a closed to an open position.

Abstract: A dispenser for storing and dispensing food, such as hay, to an animal at predetermined intervals utilizes a linear force device, such as a solenoid, to operate the dispensing mechanism. The dispenser generally comprises a housing, a plurality of spaced superimposed shelves hingedly supported by the housing defining a plurality of contiguously stacked bins for supporting animal food above the ground, a latch assembly including a latch rod for supporting the shelves, and an activation mechanism coupled to the latch rod. The activation mechanism includes a battery, a solenoid having a shaft, a timer for activating the solenoid, shaft biasing means and a conversion mechanism coupling the shaft to the latch rod such that linear movement of the shaft in a first direction rotates the rod for dispensing food and such that movement of the shaft in a second direction does not rotate the rod.

Abstract: A fly guard for a horse generally comprises a flexible hood or mask with eye holes for fitting about the eyes and over adjacent parts of the head. Surrounding each eye hole is an upstanding annular collar having an outward facing surface having hook/loop fastener material thereon for releasingly attaching an eye cover to the collar and for adjusting the distance of the eye cover outer panel from the eye. The eye cover outer panel which covers the eye may be of see-through mesh or of opaque material. The hood further includes a device for holding insect repellant. The device comprises a first pair of hook/loop fastener patches including a fixed patch of outward facing hook/loop fastener material and a cover patch of mating hook/loop fastener material matingly attached to the first patch. The fastener patches retain insect repellant disposed between then. A multiplicity of such patches can be used. Different patches may be used to hold different insecticides.

Abstract: A thrust propulsion unit for an aircraft comprises an engine, such as a turbojet engine with afterburner or a rocket engine, capable of producing thrust by expulsion of hot gases at near sonic or greater velocity through a nozzle portal and a primary ejector connected to the engine comprising a primary air intake for directing ambient air to an intake end of a primary ejector duct and a primary ejector duct having a lateral cross sectional area greater than the nozzle portal. The primary ejector duct receives the gases expelled from the engine portal and the air from the primary air intake and expels them out an exhaust end with increased momentum.

Abstract: A short shaft has: a rear socket for coupling with a drive; a front drive for receiving a socket; and locking components for locking the rear socket to the drive and the front drive to the received socket. A central bore enters the shaft from the rear. A locking bolt and biasing spring go in the central bore and are retrained by a set screw. The locking bolt front end engages a detent ball disposed in a radial cavity in the drive. A thumb lever, disposed in a bore, has an inner end including a bore for engaging the locking bolt rear section for moving the locking bolt and an outer end accessible to a user's thumb for axial movement for moving the bolt from a locking position wherein the detent ball protrudes out of the drive so as to engage a drive socket and prevent its removal to a releasing position wherein the detent ball resides substantially within the front drive so as not to engage a drive socket.

Abstract: A holding device for a syringe while filling the syringe with radioactive liquid allows the syringe to be held such that a user is not exposed to radioactive rays. The holder generally comprises first and second rigid elongate members joined by a hinge. The first member distal end terminates in a finger flange bracket for receiving and retaining a syringe finger flange. The second member distal end terminates in a thumb flange bracket for receiving and retaining a syringe plunger thumb flange. An adjustable metering device restricts the angle through which the arms can move. In an exemplary embodiment, the finger flange and thumb flange brackets are removable.

Abstract: An inflated elastic balloon has a tube passing completely therethrough. The tube is used to connect a plurality of balloons in a display pattern and to introduces a string of lights into the balloon interiors for display purposes. A disk having a bore is depressed into a deflated balloon wall and the wall covering the bore has a small hole or orifice in it. The tube passes through the disk bore and the wall orifice. A collar secures the balloon wall to the disk such that the wall material surrounding the wall orifice remains elastic and forms a sliding seal against the tube upon passage therethrough. In an alternate embodiment, the disk bore includes constriction rings that form a sliding seal against the tube and the balloon wall is secured and sealed against the disk.

Abstract: A waterproof advertising display device includes a captive calculator and is particularly adapted for use on a shopping cart of the telescopingly nestable type. Broadly speaking, the display device includes a display plate for mounting on the front wall of a shopping cart upper rear receptacle and for receiving advertising copy and a transparent cover plate attached with keyed quick release fastener and forward release hinge over the advertising copy to the display plate. A tongue and groove seal between the plates keeps water from the advertising copy. A calculator assembly is attached to the upper right of the cover plate and includes a slanted blind channel shelf for holding a captive calculator at a preferred angle for use by a shopper. A plug/bumper attached after insertion of the calculator prevents calculator removal and protects the calculator from impact upon nesting of shopping carts.

Abstract: A device for coupling the hitch socket of a trailer to the hitch ball of a tow vehicle is attached to a tongue jack having a centered post. A rigid elongate bar comprising a pair of laterally spaced apart beams is mounted around the tongue post below the frame for longitudinal movement, lateral angular movement and vertical angular movement of the bar relative to the tongue. A ring on the bar fore end attaches to the ball such that the ball and socket may be hitched with the ring attached. A cable from a winch attached to the tongue pulls the bar centrally rearward whereby the hitch components are pulled into registry. In an alternate embodiment, a bracket mounting the bar centrally under the tongue includes a roller for bearing against the bar upper surface and supporting the tongue during retraction of the bar. The bar upper surface includes a vertical drop such that, upon registry, the roller descends the vertical drop and lowers the socket onto the ball.

Abstract: A vibration damping device (10) for a sports racquet, such as a common tennis racquet (50), having sets of interwoven strings (71) defining a striking surface (70) generally comprises an elongated elastic flexible band (20) and securing hooks (40) slidingly attached from the side to the band's ends (21,22) for securing the band (20) in a stretched interwoven relationship with a plurality of strings (71) on the racquet striking surface (70). A plurality of U-shaped channels (30) are each adapted for receiving an interwoven string (71).

Abstract: A device and a method for displaying to a person moving on a course the elapsed time between two points on the course. Generally, the person would be on or in a mode of transportation, such as a race car. A retroreflective switch is attached to the car and includes a transmitter and a receiver. The transmitter emits an infrared light beam such that the light beam strikes a reflector adjacent the course when the car is on the course adjacent the reflector. The receiver includes a light detector that outputs a detection signal in response to detecting the reflected light beam from the reflector. A processor connected to the receiver receives a first detection signal as the car is adjacent a first reflector and receives a second detection signal when the car is adjacent a second reflector and determines the elapsed time between said first and said second detected signals. A display connected to the processor receives the elapsed time and displays it to the person driving the vehicle.

Abstract: The invention generally comprises a rail assembly attached to an airplane floor structure and a latch assembly in a seat pallet. The rail assembly generally includes a rail attached to a floor channel, and rollers and cargo restraining assemblies attached to the rail. The top of the rail has left and right facing teeth for engaging a seat pallet latch. Rollers connected to the rail define a roller plane above the rail for rollingly supporting a pallet. A seat pallet is supported by the rollers and includes a latch assembly for selectively engaging the rail teeth and thus restraining the seat pallet from movement relative to the rail. The cargo pallet restraining assemblies include a plurality of pairs of housings connected to opposite sides of the rail.