Abstract: This invention concerns a game board apparatus comprising a checkerboard pattern of a multiplicity of parallel rows and columns of alternately-colored spaces and a pair of continuous pathways running horizontally and vertically from space-to-space in opposite directions by devious routes from one corner of the board to a diagonally-opposite corner of the board, and means providing a maze of several alternative and dead-end paths deviating from each pathway and designed to confuse the players with respect to the most direct route for movement of a play piece from start to finish of each pathway, the rate of a player's play piece progess from start to finish being determined entirely by chance and player perception.

Abstract: A replaceable individual proofing cup for use in proofing English muffin doughballs and comprising a flanged, flat-bottomed, cylindrical receptacle formed of porous, interlocked-fiber wool felt and having minimum draft in its sidewalls giving good doughball release characteristics for depositing proofed doughballs into grilling cups of a conventional traveling English muffin griddle and minimum lay in its bottom so as not to restrict lateral growth of the doughballs when proofing.

Abstract: A pilot for a 1 to 2 million btu/hr. gas burning ignitor having a chamber for mixing gas and air in combustible proportions with an annular flame retaining and stabilizing device at its outlet. This device comprises two conical surfaces configured together in back-to-back relation within a cylindrical shroud, one a converging inlet to a restricted flow area and the other a diffusing outlet surface therefrom with a sharp circumferential lip inbetween. A distribution head at the inlet to the mixing chamber directs jets of gas at the lip of said cones which aspirate turbulent air through ports in the wall of the chamber. A high voltage elecrode ingites the gas/air mixture at the cone lip. A ported extension of the mixing chamber downstream of the stabilizing device contains the pilot flame and shrouds additional aspirated air for control of secondary combustion in the pilot.

Abstract: A seamless expandable bag filter of nonwoven material using conventional filtering media and having 62% greater extended area than other commercially available extended arm filters and incorporating broad, flat sealing collars or plates on each side of the neck of the bag and sealing them together to insure a no-leak installation.

Abstract: In the operation of an air atomized jet engine augmentor oil burner, the herein disclosed improvement typically comprises a means for modulating the fuel-air ratio of the wake combustion in the jet engine augmentor according to ambient pressures and densities of the supplied air to that ratio which will sustain the highest wake combustion thermal efficiency, and in the process to vaporize and ignite the fuel-air mixture therein instantly and completely into an intense and turbulent flame spread.

Abstract: A self-contained amusement ride designed for use on a mobile unit can be folded into a compact assembly for highway transport. During operation of the ride, an angularly off-set undercarriage allows the front portion of the mobile unit to support the entire weight of the ride on the ground with essentially no weight on the rear wheels. A pivoted kingpin plate allows transport with adequate ground clearance and a retractable landing gear on the front end of the mobile unit provides for raising and lowering the mobile unit for connection and disconnection from a prime mover. Hydraulically assisted lockable supports tie the main sweep arms to the mobile unit during transit.Pins with integral sliding hammers are provided to perform certain locking and pinning functions during assembly and disassembly of the ride.

Abstract: The present invention concerns a combination of mutually interfitting die and press-block elements adapted for manual use and operation with each other to produce a finished and permanent assembly of the separate components of a pin-back button or badge.

Abstract: A tank car bottom unloading valve that meets A.A.R. specifications which can be dually-operated either from above or below the tank, wherein the valve is retained in a heavy, longitudinally sloped mounting flange by a segmented ring which does not interfere with the valve actuating mechanism and yet allows the containment of the valve up inside the tank so as not to result in hazardous protrusion of the body of the valve from the bottom of the tank. Said vale is shut from below by an over-center cam and link mechanism which locks the valve poppet on its seat through a resilient compression spring but which does not lock-up the valve when it is shut from above, so that lower working torque is required by the operator and less maximum stress is imposed on the valve in its operation, and there is less criticality of adjustment upon assembly. A valve actuating lever disengages from the over-center cam and link mechanism for rotation and hookup in an out-of-the-way place below the tank car.

Abstract: A device for propelling a missile toward an object. Said device includes a handle frame having upwardly and rearwardly divergently disposed, bowed arms and a pair of rubber tubes each slidably mounted on a tube carrying arcuate member integrally formed medially on and positioned above the upper end of the handle, the free portions spaced above each of the arms on which a rubber tube is slidable thereon, and a sight integrally formed on the upper end of the handle.

Abstract: A simple lockup device for a sign having a square tubular extrusion for a post with grooved webs extending midway up the length of the interior of T-section sidewalls of the same, one sidewall web being slotted through its groove partially down from the top of the post for receiving the flange of a sign panel installed in interlocking relation therewith. A locking key bent of a rectangular strip of sheetmetal engages a vertical slot in the top of the panel flange at its middle and at its conjugate ends engages with the grooves in the webs on adjacent sidewalls of the post. A closing cap inserts four depending lugs in four corners of the top of the post in mounting on top of the same.