Abstract: A fastening device for securing articles together, the device including releasably connected male and female components. The male component comprises a pin and the female component comprises a retaining insert positioned in a housing for releasably clamping the pin. When joined, the pin can not be separated from the retainer except by a special tool. The insert is of magnetic material, and an actuating tool including an electromagnet is employed to actuate the insert to permit removal of the pin. The housed insert is attached to a tag, with the tag being attached to the article which is to be sold. The tag houses an electrical circuit which activates an alarm if the tag is not properly removed at the checkout point by means of the special tool.

Abstract: An annealing lehr comprised of a plurality of serially arranged heating and cooling sections which form a continuous treating chamber through which the ware passes during the annealing operation. An endless foraminous conveyor belt moves through the treating chamber and supports the ware to be annealed, with both the charging and return flights of the belt being located within the heating section to pre-heat the return flight. At least one burner is mounted adjacent the top and at each side of each heating section, and the burners fire directly into a duct which communicates with the inlet of a fan positioned centrally above the treating chamber. The circulating system includes down ducts at each side of the treating chamber and electrical heating elements can be located in the down ducts for providing the necessary heating, in lieu of the gas burners.

Abstract: A flanged wheel for a roller conveyor is provided with a substantially solid elastomeric tire narrower than and surrounding the wheel without bonding thereto, the tire normally extending radially beyond the flanges. Compression set of the elastomer and consequent flat spots under excessive load are avoided by the load coming to rest on the rims of the flanges.

Abstract: The watercraft has a hull with an upwardly curved (concave) bottom and side keels extending downwardly for the full longitudinal length of the watercraft spaced laterally from each other and on opposite sides of the watercraft. Forward and rearward hydrofoils are arranged on either side of the hull and project from the keels for swivelling about generally vertical axes angled downwardly and outwardly. The hydrofoils on one side are adjustable independently of the hydrofoils on the other side for adjusting the angle of attack of the hydrofoil lifting surfaces that are curved outwardly to be generally horizontal. Fixed hydrofoils between and respectively longitudinally aligned with the adjustable hydrofoils are attached to the hull. Propellers that swivel about axes extending downwardly and outwardly at approximately 15.degree. to the vertical are respectively mounted for swivelling movement along with attached rudders for steering.

Abstract: A plurality of ski lifts are individually monitored and the information displayed at a central location for each of the ski lifts, and further displayed at a common location for all of the ski lifts. Each of the ski lifts is shut down in response to various unsafe conditions automatically with simultaneous production of a corresponding safety signal introduced in the common ski lift power control circuit, each of which safety signal is assigned a frequency or current so that it may be separated at a central location from other signals carried in the circuit for processing display. The safety devices will open switches to reduce the current carrying capacity of the closed power circuit and thereby disconnect the power to the ski lift drive while maintaining a substantially lower current carrying capacity in the circuit for passing the safety signals along the circuit to the central location.

Abstract: In a steam turbine plant with feed water heaters receiving steam extracted from the turbine to apply in heat exchange with the feed water being supplied to the boiler, the drain water level in the water heaters is monitored so that when the drain level exceeds a predetermined abnormal level, for example due to rupture of the feed water pipes in the feed water heater, steam supplied to the turbine is automatically reduced to runback the load on the turbine, and thereafter the extraction of the steam to the malfunctioning feed water heater from the turbine is stopped and the feed water heater is bypassed with respect to the feed water flowing to the boiler, so that the malfunctioning feed water heater is thus isolated from the turbine plant.

Abstract: Nitrogen oxides (NOx) are removed from combustion waste gases by injecting gas (NH.sub.3) into the combustion waste gases in the presence of a metallic catalyst to deoxidize the nitrogen oxides to nitrogen and water, within a reaction tower having the catalysts moving through the reaction tower, so that thereafter the dust may be separated from the catalysts and the catalysts may be regenerated continuously, so that the regenerated catalysts may be returned to the reaction tower. The catalyst moves in a substantially closed path, and preferable downwardly through the reaction tower, with the ammonia gas and combustion waste gases moving in cross current through the reaction tower, with mixing being enhanced by a plurality of angled baffle plates.

Abstract: A conveyor having generally horizontal shelves traveling vertically within a casing between load transferring stations provided with openings in the casing and transfer means at a load transfer station is characterized by a safety cable adjacent the upper portion of the opening to be in the path of only a misplaced article for deflection and actuation of a switch to turn off the driving electric motor and thus preventing jamming of the article between the upwardly moving shelf and casing. Further, the transfer mechanism is provided with transfer fingers that interdigitate with shelf fingers so that when the transfer fingers are in a horizontal position and supporting an article, the upwardly moving shelf will pick up the article from the fingers, and control means are provided to sense the transfer fingers in the horizontal position to permit upward travel of the conveyor and prevent downward travel of the conveyor.

Abstract: A reel band for securing the free end of a roll of motion picture film, magnetic tape or the like, comprising a strip of flexible polyvinyl chloride having an electrostatic charge. The charged band is of approximately the same width as the film or tape and is wrapped around the outer convolution of film or tape and pressed into secure contact. The electrostatic charge on the vinyl band causes the band to cling to the film or tape and to itself, thereby rigidly holding the outer convolutions of film or tape in position.

Abstract: The invention concerns a table-tennis bat in which the core, which extends throughout the bat, is a lightweight wood and in which on each side of said core there is provided a lamina of considerably harder wood. The bat has the usual playing surface coating such as dimpled or foam rubber.

Abstract: The vented nuclear fuel element comprises a cladding tube containing nuclear fuel therein and a device disposed in the upper portion of the cladding tube for venting gaseous fission products released from the nuclear fuel. The venting device comprises a porous plug for closure of the top end of the venting tube, which plug has the property of getting wet with the surrounding coolant, two plates that in cooperation with the cladding tube define a chamber for holdup of the gaseous fission products, a capillary tube for introducing the gaseous fission products from the nuclear fuel into the upper portion of the chamber, another capillary tube for introducing the gaseous fission products from the lower portion of the chamber to the porous plug, and a check valve for preventing the gaseous fission products within the chamber from flowing back into the interior of the cladding tube.

Abstract: Preferably for use in the production of continuous lengths of rigid foam, a molding machine employs opposed endless conveyor belts having adjacent linear runs forming therebetween a molding zone. Each of the conveyors is supported for movement toward and away from the other conveyor, and one of the conveyor supports is made up of a plurality of sections hingedly connected together to locally yield to a lump or other discontinuity in the product being produced. Double acting expansible chambers are provided to drivingly interconnect the conveyor supports for separating the conveyors, permitting the conveyors to come together, and for clamping the conveyors together under a pressure sufficient to resist the foaming pressure, with a space between the conveyors being maintained during molding by adjustable spacer blocks.

Abstract: A lobster trap having a basic four sided container body, wherein the side walls are each constructed of a central panel having open mesh net material of widely spaced strands, which strands are composed of a plurality of tightly spaced individual strands, with the opposite ends of the individual strands being separated and arranged in a fan shape for lamination between close woven fiberglass cloth forming a quadrilateral framework, with the framework of adjacent walls being of one piece. The side walls further have hand holds in the framework.The bottom of the lobster trap is formed of reinforced concrete having a securement bolt embedded therein that extends upwardly through the top, for clamping the side wall framework between the bottom and top. The top is held to the securement bolt by means of a cross pin that is soluble in water so as to release the top after a predetermined submerged time, for corresponding release of trapped lobsters therein when the trap is lost.

Abstract: The annular array of radially extending blades on the rotor of a rotary fluid machine are tied together at generally their mid portions by interlocking separate tying members and projection pairs, wherein each projection pair includes facing projections on adjacent blades of the array. The tying members and projections have mating bearing surfaces that will provide a tangential force as a result of wedging produced by the centrifugal force acting upon the tying members during rotation of the rotor at rated speed, without restraining individual twisting of the blades about their radial extent.

Abstract: Apparatus for the spectroscopical examination of light transmitting objects such as gems comprising a spectroscope unit, receptacle means for the gem provided with a light transmitting support, and a light source, the gem in the receptacle being situated at the point of intersection of the optical axes of the spectroscope and of the light source, the latter comprising a first overhead light source shining light onto the stone from above and a second, transillumination light source shining light through the stone, the angles between the optical axes of the spectroscope and the light sources being adjustable. The light emerging from the light sources is produced by a cold light projector and conducted to the light sources via fibre optics.

Abstract: A seed planter attachment for a garden plow in which the planter is driven directly from the drive for the traction drive wheel. The planter includes a vertical seed planting disc which is rotated from such drive and which contains seed cups or pockets which pick up the seed through openings formed in the adjacent side wall of the seed hopper. The seed is discharged by gravity through a seed discharge tube extending downwardly from the seed hopper.BACKGROUND OF THE INVENTIONThe present invention relates as indicated to a seed planter attachment for garden plow and relates more particularly to a planter in which a planting disc is driven from the main drive for the traction drive wheel, with the planting disc being constructed and arranged on the seed hopper for pick up and gravity dicharge of the seed through a seed discharge tube extending below the seed hopper.The plow per se to be presently described is similar in most respects to the plow disclosed and claimed in my U.S. Pat. No.

Abstract: A gate lock for locking a gate to a fence which comprises a first arm mounted on a fence post for rotational movement relative thereto and a second arm having a curved end portion adapted to extend around said gate post for locking the same. The arms are pivotally connected to permit movement of the second arm relative to the first arm between a position enclosing the gate post and a second position free of the gate post to permit opening of said gate. The arms are provided with openings which are aligned when the arms are in a locking position to receive a padlock or the like.

Abstract: A fastening device for securing articles together, the device including releasably connected male and female components. The male component comprises a pin and the female component comprises a retaining insert positioned in a housing for releasably clamping the pin. When joined, the pin can not be separated from the retainer except by a special tool. The insert is of magnetic material, and an actuating tool including an electromagnet is employed to actuate the insert to permit removal of the pin. The housed insert is attached to a tag, with the tag being attached to the article which is to be sold. The tag houses an electrical circuit which activates an alarm if the tag is not properly removed at the checkout point by means of the special tool.

Abstract: A dispensing container for dispensing tissues one at a time from a web of perforated tissue material such as a web of premoistened, perforated towels. A cap is removably secured to the container body and a dispensing outlet is formed in the cap, with the outlet comprising a generally enlarged portion through which the tip of the leading tissue of the web can be passed, a groove portion extending from one end of said enlarged portion, and a generally circular portion at the opposite end of said groove. The generally circular portion of said outlet functions to apply tension to the web when the web is pulled from the container, the tension causing the leading tissue to separate at the perforation from the next tissue and leave exposed the tip of the next tissue to facilitate the next dispensing operation.

Abstract: Plastic is foamed in a pressure tunnel portion of a molding conveyor formed by opposed endless conveyor runs with side pieces defining the product cross section. One or both employed the endless runs, preferably the bottom conveyor run is laterally split into at least two separate endless shiftable conveyors respectively carrying the side pieces forming the sides of the pressure tunnel, which shiftable conveyors are laterally movable, with respect to the conveying or molding direction, at the tunnel entrance and the tunnel exit for clamping and unclamping respectively, that is for bringing the side pieces horizontally toward each other transverse to the molding direction to form the final configuration for the tunnel cross section and away from each other at the molding tunnel exit to release the sides of the molded product.