Abstract: A vacuum heat treating furnace and quench system in which a load hanger rod with attached load is suspended vertically from the vacuum chamber top cover assembly, and at the end of the heating cycle segment is unlatched and permitted to free-fall through the opened passageways into the quenching medium.

Abstract: A process and structure of a joint for connecting a first panel and a second panel of a floating roof. Each panel being including an extrusion on an edge of said panel. The extrusions being generally U-shaped and each extrusion having two spaced ribs. The clamping bars, each clamping bar having two spaced slots that receive a said rib on each of the panels. The ribs being received in two spaced slots and the bars being clamped together. Before inserting the ribs in the slots a thin uniform layer of an elastomeric material is dispensed in the grooves and struck off to a uniform thickness and cured before inserting the bar into position on said extrusions.

Abstract: A slewing assembly comprises a cylindrical main body and a shackle member, it is characterized that the cylindrical main body includes a pedestal-like member with a terminal to be connected to a radio set or the like and a hollowed cylindrical section for rotatably receiving the shackle member; the shackle member comprises a forked portion containing a slot and a screw hole for pivotally securing an extensile rod antenna or the like and a hollowed cylindrical section to be rotatably received in the hollowed section of the main body, a plurality of grooves surrounding the outer surface thereof are provided for lubricating purpose, one slit extends axially on the entire outer surface of the same, the other one slit extends more than a hemicircumference around the outer surface of the same at the end abutting against the flange of the forked portion, said two slits intersect at right angle to form an integral cross slit so that the hollowed cylindrical section of the shackle member is contractable and expandable

Abstract: A wheel chair including a frame, at least three wheels, a drive mechanism and a single lever control mechanism. The drive mechanism includes a prime mover mechanism and a selective engagement mechanism. The frame is supported by the wheels. The single lever control mechanism is connected to the selective engagement mechanism. The selective engagement mechanism is connected to the prime mover mechanism. The selective engagement mechanism is adapted to selectively transfer power from the prime mover mechanism into forward and reverse movement of at least one of the wheels of the wheel chair.

Abstract: A shoe protector made up of a toe protector adapted to slip over the toe of a shoe and half sole attached to the toe protector. An instep strap is attached to the half sole to support the half sole on a shoe and a heel strap has its ends attached to the instep strap for holding the instep strap in position. The heel strap has an adjustable buckle. A metatarsal protector for use with the shoe protector in likewise diclosed.

Abstract: A machine for marking idicia on small articles of manufacture by means of a laser. Strips of articles in the form of small relatively flat rectangular plate like members are held together in side by side relation in a common plane in plate like frames. The strips are stacked in magazines. The machine has an indexing turret with eight magazine supporting stations, a diametrically disposed conveyor. The full magazines of unmarked parts are loaded onto the machine at one station at the front of the machine by an operator. The full magazines of unmarked parts are then indexed to an unloading station where the lead frames are automatically unloaded from the magazine onto the conveyor where they are transferred past a laser marking station to an unloading station. The laser marker marks an indicia onto each article and the conveyor moves the lead frames to the loading station, where the stacks are reloaded onto an empty magazine.

Abstract: A cardboard box and/or plastic crate partition is disclosed, made up of longitudinal and lateral partition members that are substantially flat and that are substantially identical but for the different lengths for forming lateral and longitudinal partition members. The partition members each have slots that extend about half way across them. These slots in the partition members extend in one direction, receive the partition members extending in the other direction. Shoulders on the partition members of one direction overlie the slots and prevent the partitions from separating from each other.

Abstract: A method and materials for sewing craft sheets of plastic canvas is disclosed wherein an adhesive backed transparent film sheet having a grid pattern thereon color coded to form a picture is affixed to a plastic canvas having a grid pattern the same size as the grid pattern on the sheet. The grid on the transparent sheet is aligned with the grid of the plastic canvas and the grid is then cut to the shape of the picture on the transparent sheet. The person can then stitch the picture, following the color code marks on the transparent sheet grid.

Abstract: The plasma cutting system of the invention includes a constant height plasma arc cutter, a rolling table and a plasma cutter carrying gantry driven from opposite sides. The rolling table is rolled from a loading position where metal sheets are positioned thereon to a cutting position beneath the plasma arc cutter. The plasma arc cutter is held at a constant height above the rolling table. Each metal sheet loaded onto the rolling table is supported on adjustable pins. The entire cutting area is enclosed and vented. The plasma cutter and the rolling table are supported by the cutting system support. A cutter housing supports a transparent curtain, and the transparent curtain encloses the plasma arc cutter. A gantry is supported by the cutter housing, and the gantry supports the plasma cutter. The rolling table includes a table frame, adjustable pins and table wheels. The adjustable pins and the table wheels are connected to the table frame.

Abstract: A two piece booster shot shell wad is disclosed which includes a one piece wad unit and a shot cup. The shot cup is received in a cup shaped cavity in the one piece unit. The shot cup has a non-circular stud on its bottom and is received in a non-circular recess on the one piece wad. The one piece wad has a channel on its bottom to trap air and direct it against the bottom of said shot cup to expel the shot cup from the one piece wad. The over powder wad shapes the charge and extended primer flash pocket helps in ignition of the powder. The outer peripheral upper edges of the cup shaped cavity in the one piece unit is flared outwardly to build up air pressure for opening the ears of the one piece wad and the shot cup has spaced ears which flare outwardly in flight through the air.

Abstract: A boring block and tool holder is disclosed having an opening therein. The block is made of a thick rectangular plate having inserts set into its front corners and inclined surfaces adjacent its rear edge forming a noncircular tang part having two rearwardly facing shoulders adjacent the tang portion which is received in a slot in a boring bar. The shape of the slot is complimentary to the shape of the tang part of the block. A tapered hole through the tang aligns with a tapered hole in the boring bar and the tapered hole in the block receives a taper pin which forces the block rearward bringing the block into firm rigid relationship with the end of the bar thereby clamping the block in positive rigid relation to the bar. The block has more strength than previous blocks because the block is thicker below the cutting inserts and there is more metal below the cutting insert, yet it can use the same bar and same slot width as rectangular blocks.

Abstract: A rack for printed circuit boards is disclosed. The rack has a first wall with a circuit board engaging surface and a second wall with a circuit board engaging surface disposed generally perpendicular to one another. The two surfaces are rigidly fixed together at right angles to each other and the board engaging surfaces are fixed to and supported by a first lateral flange and a second lateral flange. The first board engaging surface has ribs at the side edges for engaging the edges of boards and a recess is formed between the two board engaging surfaces which receives projections on the boards, debris, liquids or other foreign material. For manual handling and quick access to boards, the rack can be used alone on a desk top or the like wherein bottom board edges rest at an acute angle to the desk surface. For mechanical handling and shipment of boards, the rack can be used in opposed pairs adjustably connected and within a container wherein bottom board edges rest parallel to support surface.

Abstract: The hand held device of the invention is adapted for cutting, reaming and bending tubing. The device includes as discussed above a bender body member having a tubing guide track, a bender bracket having a bender flange, a rotatable cutting wheel, and a reaming tool. The bender bracket is connected to the bender body member. The reaming tool is connected to the bender body member. The rotatable cutting wheel is supported by the body member. The bender flange is positioned above the tubing guide track so that tubing fed beneath the bender flange is held by the bender flange as the tubing is bent into the tubing guide track. The upper work surface of the tubing guide track is semicircular in cross section. The tubing guide track is arced. The bender flange has a tubing engaging portion which is semicircular in cross-section. A work portion of the tubing is positioned in the tubing guide track beneath the tubing engaging portion of the bender flange.

Abstract: A vacuum operated insect trap is disclosed. The instrument is made up of a suction device adapted to be held in the hand of a person and connected to a funnel like applicator by means of a hollow wand. The user holds the instrument by its handle and holds the mouth of the applicator near the insect which is drawn into the applicator and thence into the suction device by said vacuum. A removable tank is attached to the instrument.

Abstract: A fan having reversible blades supported on a ring. The blades have means for holding the blades against rotation around thin central axis so that they can be selectively set to either blow cooling air forward away from the driver or rearward to add to the comfort of the driver. The resilient means urging the blades outward is made up of rubber cylinders that receive the hubs of the blades. One end of the cylinder rests on the fan while the thick end of the cylinder rests on the fan blades. The cylinder has a barrel shaped inside surface which it in giving the sleeved a generally uniform spring rate throughout its entire excursion.

Abstract: A strainer for trapping solid particles entrained in a fluid flowing through the strainer includes a two-chambered housing, each chamber containing a removable strainer basket. The strainer also includes a plurality of valve mechanisms for routing fluid flow through the two chambers in a predetermined manner. A user actuated directional flow control valve includes a multi-ported ball member rotatably supported by and between a pair of opposed valve seat plates, each associated with a respective one of the chambers wherein rotation of the ball directs fluid flow through it into one or the other or both of the chambers. An optional seal member, engageable with the ball, acts at a predetermined position of the ball member to block inlet fluid flow through any of the ports in the ball member thereby providing a shut off condition. A pair of spring biased, normally closed, check valves are used to automatically control the flow of strained fluid out of the strainer chambers.

Abstract: A battery operated lamp and battery charger are disclosed. The lamp is equipped with a rechargeable battery and a battery charger stand. The lamp has a lamp support surface with a center terminal, and a second terminal spaced from the center which engages the center terminal and second terminal respectively on the lamp. Thus the two lamp terminals will engage the two respective charge terminals regardless of the position of orientation in which the lamp is placed on the charger. The charger circuit is powered from a power cord connected to a power line through a transformer a full wave rectifier to charging lines. These diodes and a switch are connected in parallel with two diodes. The lamp battery to be charged is connected in parallel with the charging lines. Thus, with the switch closed, the charging voltage is reduced to desired value by a voltage drop caused by the resistor and the three diodes in parallel with the battery.

Abstract: A level is disclosed having a body with two working surfaces. One of the working surfaces is formed on a magnetic rubber strip. The magnet has a longitudinal groove formed in the working surface which can receive a corner or a side of a pipe to be leveled or plumbed, thus preventing the level from moving laterally on the pipe, corner or projection.

Abstract: A method of detection of neoplastic tissue comprising, providing a first solution, the first solution comprising cytosol malate dehydrogenase from a mammalian test tissue, determining a first rate or a first function of the first rate at which the first solution catalyzes the reaction of oxaloacetate to malate, comparing the first rate or first function of the first rate with a known standard normal rate or function of the normal rate at which a normal solution of cytosol malate dehydrogenase catalzes the reaction of oxaloacetate to malate, whereby the first rate or the first function of the first rate being substantially higher than the known standard normal rate or function of the normal rate indicated that the mammalian test tissue is neoplastic.

Abstract: A device and a method for transferring inserts into a mold which has at least one insert receiving cavity. Included in the device are an insert positioner and an insert actuator. The insert positioner includes a transfer plate, which has a mold face with at least one insert transfer channel aperture which opens into an insert transfer cavity. Included in the insert actuator are an actuator plate, and a plate actuator. The actuator plate has at least one actuator pin extending therefrom. The actuator plate and the transfer plate are connected to so that each of the actuator pins is substantially axially aligned with the central axis of an insert transfer channel. For moving the inserts into the mold the plate actuator is adapted to move the acutator plate toward the transfer plate and thereby convey each actuator pin at least partially through each corresponding insert transfer channel. The device is adapted for operation by hand.