Abstract: Apparatus to position or remove a plastic lens including an eyelid opener having upper and lower crossbars for individual engagement with the person's upper and lower eyelids to retain them open, and plastic lens engaging tweezer having a pair of resilient arms with a flexible lens engaging member thereon for engaging the plastic lens in the wearer's eye and removing the same.

Abstract: An aircraft drive system having two propellers, each of which is driven independently by a drive belt which is connected to a separate engine. The engines are mounted in cantilever fashion in a spaced relationship on a hollow sleeve. The sleeve is attached by a pair of spaced brackets to the frame of the aircraft. A shaft is rotatably telescopically mounted within the sleeve by bearings located on the ends of the sleeve. A pulley is fixedly mounted on one end of the shaft and is driven by one of the engines for rotating one of the propellers which is fixed on the other end of the shaft. Another pulley is rotatably mounted by bearings on the sleeve and is driven by a drive belt connected to the second engine. The second propeller is telescopically located about the sleeve adjacent the first propeller and is firmly connected to the second pulley which rotates said second propeller completely independent of the first propeller and in an opposite direction than the first propeller.

Abstract: A wood or coal-burning stove or fireplace has a baffle attached to a flue. Upon opening of the stove door or the fireplace door, the baffle is automatically adjusted to increase the amount of air admitted to the stove or fireplace and thus prevents smoke from coming out of the doors.

Abstract: The present invention relates to a microbiological process for the production of citric acid by assimilation of .alpha.-olefins, normal paraffins and their mixture. This process is carried out by culturing the microorganisms selected from the group of Candida tropicalis, Candida lipolytica, Candida intermedia and Canida brumptii and their mutants and their variants under higher concentration of dissolved oxygen than that in ordinary aeration in the culture medium. The concentration of dissolved oxygen in the culture medium is suitable in the range of from 5 to 40 ppm, preferably from 10 to 30 ppm on the weight basis of said culture medium in this invention.There is many means of which increase the dissolved oxygen in the culture medium.

Abstract: A preserving element (5) formed as a synthetic material mould part has preserving troughs (6) in which the bent end sections (3b) of connecting bars (3), later to be bent out, are embedded with a brittle mass (7). The device has the advantage that after the anchoring of the connecting bars (at 3a) in the structural member (2), the element (5) and the mass (7) can be easily removed. The device forms an easily transported and handled structural unit which is usable in the production of construction joints of steel concrete structures of any kind.

Abstract: A dual stacker for slot acceptors, capable of receiving and separately stacking securities of at least two denominations. The invention includes a receptacle beneath the note path of a slot acceptor. A punch plate is operative for reciprocating movement through such receptacle. On each side of the receptacle are stacking plates, one for each denomination of bill to be handled. When a bill is sensed as being valid, and a determination is made as to the denomination of the bill, the punch plate is appropriately positioned on one side of the receptacle or the other. The bill is then dropped into the receptacle and the punch plate passed therethrough to move the bill on to the appropriate stack. The invention also includes bill retaining bars to prevent the bills from springing outwardly from the stacks. These bars are removable for easy access to the stacks by an operator.

Abstract: A tin brightener mixture for plating baths comprises chlorinated acetophenones, emulsifying agents, and acrylic or methacrylic acid. Additionally, aromatic aldehydes can be utilized. The tin brightener yields semibright to bright deposits from 0 to over 150 amps per square foot.

Abstract: A method for removing the excess sodium and byproducts of reaction which occur during the destruction of PCBs from oil. A predetermined quantity of water is mixed with the decontaminated oil and the byproducts, which include sodium chloride and polyphenyl polymer, to form sodium chloride and sodium hydroxide. Centrifuging removes most of the oil from the remaining aqueous mixture which then is agitated and treated with carbon dioxide gas to form less hazardous sodium carbonate and sodium bicarbonate. Any excess carbon dioxide gas is vented to the atmosphere and the sodium carbonate and sodium bicarbonate is collected into containers for disposal. Small amounts of oil remaining in the aqueous waste mixture that is discharged from the centrifuge is decanted from the remaining material in a waste separator due to its lighter specific gravity. A pump intermittently injects waste from the waste separator into a converter where it reacts with the carbon dioxide gas.

Abstract: A traction jockey wheel having a drive mechanism of a pawl and ratchet wheel type with a braking interlock operable when a lever arm used for drive and steering of the traction wheels is lowered or raised past a select range of operating positions. The improvement can apply to either a single wheel or a dual wheel traction wheel assembly.

Abstract: A system for precipitating vapors from a continuous coater and retrieving suspended matter therefrom. The entrance and exit passages communicating with a spray coating booth are vented to a scrubbing chamber where a precipitant spray drives the vapors through a precipitant baffle. Suspended matter in the vapor is thus precipitated and drained into a recovery tank. The scrubbed vapors are then exhausted up a stack. In one embodiment of the invention, the vapors are vented through openings in the top of the entrance and exit passages, in which embodiment there is also provided an input chamber for receiving the vapors and transferring the same to the scrubbing chamber. In a second embodiment, the vapors are vented through openings in the side walls of the entrance and exit passages, in which case they are vented directly to the scrubbing chamber.

Abstract: The present invention relates to a suppressing method of iso-citric acid formation in producing citric acid from hydrocarbons by fermentation.This process is carried out by culturing the microorganisms selected from the group belonging to Candida tropicalis, Candida lipolytica, Candida intermedia and Candida brumptii and their mutants and variants in the culture medium containing paraffinic and olefinic hydrocarbons and their mixture as carbon source under aerobic conditions, wherein specific non-ionic surface active agent is added to said culture medium.The specific non-ionic surface active agent added to said culture medium is selected from the group of sorbitan fatty acid esters and polyoxy-ethylene sorbitan fatty acid esters. The amount of specific surface active agent added to said culture medium is enough from 0.005 to 0.5 percent by weight, preferably from 0.02 to 0.2 percent on the weight basis of said culture medium.

Abstract: A harness restraint for a person seated in a seat (1) having a seat position (2) and a back rest portion (3). The restraint is a pair of shoulder straps (6) each being anchored at its respective upper ends (7) and each extend downwards in parallel relationship to the junction of the seat portion (2) and back rest portion (3) then in a horizontal direction to the sides of the seat to form a lap sash in the relaxed state. A crotch strap (9) anchored at one end to fixture (10) has its free end passed between the legs of the person seated and looped around the shoulder straps then back to be releasably secured by buckle (11) to fixture (10). Inertia reel devices may be provided at the anchoring ends of the belts.

Abstract: An article processing apparatus including a frame and feed conveyor on the frame for supply of a plurality of rows of abutted articles has provided therefore a stop member positioned above the feed conveyor and extending transversely of the rows of abutted articles, a power device operatively engaging said stop member to move it vertically downwardly to engage the tops of corresponding articles in all of the rows simultaneously to press them downwardly and prevent forward movement thereof whereby feed of articles into the apparatus can be controlled, and guide and connector means operatively connect the power device to the stop member to provide oscillation of it in a vertical plane to compensate for irregularity in engagement with a transverse row of articles.

Abstract: The stroke of an air driven power cylinder is controlled through a load means attached to the piston rod, a control valve means connected to the cylinder to control air exhaust from the cylinder on the extension stroke of the piston, and an external cushion valve means operably connects to the control valve means and the load means for air exhaust flow therethrough in a controlled manner but for shut-off of the air exhaust as the piston approaches the end of its stroke to trap some air in the cylinder before the piston stroke ends, the cushion valve means having a member therein of adjustable position for control of the length of stroke of the piston.

Abstract: A method and apparatus for the manufacture of pulleys is presented, wherein the pulley is manufactured from a blank placed between a head stock and a tail stock assembly. While maintaining constant pressure between these two assemblies, the head stock assembly is spun and the pulley blank is transformed into the pulley through the application of stress upon the sidewalls of the pulley blank. When a multiple groove pulley is desired, this transformation is administered by the combination of at least two external spin rollers and at least one internal spin roller, the latter deforming the pulley blank while positioned within the internal circumference of the pulley blank and mounted on an internal roller shaft, rotatable within the pulley drive shaft. When a single groove pulley is desired, the external spin roller may deform the pulley blank.

Abstract: A seat cushion for use in a seat of, for example, an automobile is manufactured by preparing a seat surface covering including a seating portion of fabric material and side portions of suitable material joined by sewing or high-frequency welding to the seating portion, and bonding a skinless molded block of cushion providing material or a profile-cut slab of cushion providing material to the seating portion of the seat surface covering by a bonding agent distributed at scattered points.

Abstract: A device constituting an improved boiler design. The heat exchanger, known in the art as a pancake, is composed of an asymmetrical grid of interconnected hollow eliptical conduits through which flow the heat transfer fluid. In one embodiment of the invention, two pancakes are connected in series in such a way that their asymmetry is complementary. Such an arrangement is claimed to increase the efficiency of heat transfer and reduce the frequency of cleaning of the boiler when compared to boilers in the known art.

Abstract: A doll having extendable fingernails and toenails. Unexposed lengths of the nail extend into the hollow portions of the doll's body. The nails, held in place by grooves on either side of said finger or said toe, are extended by the use of slight outward pressure or the use of electromechanical means. In such manner, new nail surface may be exposed and the old surface cut away. This permits the manicure and painting of the nails, generation of a new nail surface, and the subsequent removal of old nail surface by trimming of the nail or otherwise.