Abstract: An alga named Dunaliella bardawil is similar to D. salina except that its length is 15-19 .mu.m, its diameter 10-14 .mu.m and its volume 200-1000 .mu.m.sup.3, and it contains large quantities of carotene and glycerol.

Abstract: The subject of the present disclosure is a new and distinct variety of miniature rose plant characterized by the deep red color of buds and flowers and further identified by the unique "moss" on the buds.

Abstract: The basic fluid is water, oil or an oil-water mixture. The primary weighting materials are dissolved salts, e.g., sodium chloride, calcium chloride or mixed brines, and in these the calcium or sodium ions inhibit hydration and swelling of drilled solids. When non-cationic fluids are used, an inhibitor is added to prevent such hydration and disintegration--an electrolyte or a cationic surfactant. Any viscosifier added is one having neither a structured viscosity nor gel strength, hydroxyethyl cellulose, for example. When the drilling fluid is pumped to the surface, most of the drilled solids are in their original condition and size and are readily removed and discarded by screening and other available physical means. There is none of the build-up of solids associated with older systems and, hence, no need for discarding, thinning, and make-up.

Abstract: A lens selection device for placing any one of three or more magnification lenses in an operative position where its optical axis aligns with a respective reference axis, a selected lens being shifted along a fixed path from a retracted position to the operative position thereof by separate drive means numbering one less than the quantity of the lenses. In the case of three lenses, for instance, a first drive means is used to shift a first lens, a second drive means is used to shift a second lens, and a follower means coupled with a third lens is used to shift it to its operative position when the first (or the second) lens is driven to its retracted position.

Abstract: A photographic film cassette including a drive transmission arrangement configured for operating a film capstan and for selectively driving supply and take-up reels of the cassette responsive to projector driving operation. The cassette is a large capacity film cassette for use with automatic projector apparatus of the type having a cassette-receiving well smaller than the space occupied by take-up and supply reels of the large capacity cassette and is provided with a tongue-like housing portion receivable in the cassette well of the projection apparatus. Contained within the cassette is reversible drive transmission by which drive spindles in the cassette well are coupled to both an isolating capstan and the film reels to effect advancing movement of the film strip from the supply reel to the take-up reel during projection and rewinding movement of the film strip back to the supply reel after projection.

Abstract: A decorated multiple layer paper suitable for use as a top surface in resin impregnated abrasion resistance decorated laminates, and the laminates prepared therefrom, said multiple layer having a base layer and a top layer, the top layer comprising abrasion resisting mineral particles having a hardness of 7 or more on the Moh scale and a particle size ranging from 10 to 75 microns, and with a printed pattern over the exposed surface of the top layer. The multiple layer paper is made by depositing a base layer on a paper machine forming wire, and while the base layer is in a wet state and still supported on the forming wire, depositing the top layer thereover. Abrasion resistant decorative laminates are prepared from said decorated multiple layer paper by saturating said paper with a resin, suitably a thermosetting resin followed by uniting with a core and curing of said resin.

Abstract: A polymeric composition comprising main chains, side chains attached thereto and crosslinking units between side chains. The main chains comprise a copolymer of two or more ethylenically unsaturated monomers at least one of which contains hydroxyl groups, the side chains comprise lactone chains attached to said hydroxyl groups and the crosslinking units comprise amino resins. The copolymers may be prepared and subsequently modified or the side chain may be attached to an ethylenically unsaturated monomer and the modified copolymer prepared directly by polymerization with other unsaturated monomers. The modified copolymers are crosslinked and cured with an amino resin.

Abstract: Colorant materials which exhibits useful levels of electrical photosensitivity are disclosed. These materials have the formula: ##STR1## wherein .[.n represents 0 or 1,.].m represents 1 or 2,Ar represents an aromatic group,A represents an alkylene group,R.sup.1 and R.sup.2, when taken together, represent an alkylene group,R.sup.1, R.sup.4, R.sup.5, and R.sup.6, when taken alone, each represent hydrogen, nitro, cyano, halogen, or one of various specified organo groups, andR.sup.2, when taken alone, represents hydrogen, an aromatic or an alkyl group.

Abstract: A rain-shielded welder's mask assembly comprises in combination a head piece, a welder's mask with eye piece, and pivotal mounting means attaching the mask to the head piece.A rain shield is mounted pivotally above the eye piece and connected to the head piece for raising and lowering upon relative angular movement of the mask with respect to the head piece. In its raised position it extends horizontally above the eye piece protecting the same from rain in the operative position of the mask. In its lowered position it nests over the eye piece, protecting it from rain in the raised inoperative position of the mask. A gutter is mounted on the front of the mask above the eye piece for diverting rain water therefrom. The welder thus is enabled to work steadily in rain conditions without stopping frequently to clean the eye piece of his mask.

Abstract: A generally U-shaped bracket for detachably securing in particular a resilient retaining strap of safety goggles to a safety helmet having a rim is provided. The bracket is made of flexible material, has two limbs and comprises a two-armed clamp lever for detachably clamping the bracket to the rim of the safety helmet. The clamp lever has a passage through which the retaining strap of the safety goggles placed about the safety helmet passes. One of the limbs of the bracket has a bifurcation defining bifurcated ends and the two-armed clamp lever is pivotally mounted in and between said bifurcated ends.

Abstract: For both orthopedic and sports uses, a foamed plastic pad is integrally molded to a fabric. More particularly, a knitted sleeve is constructed having a terry loop on the interior surface of a hydrophobic yarn (e.g. acrylic) and an exterior surface of a hydrophilic yarn (e.g. cotton), whereby moisture is wicked away from the surface in a hydrokinetic fashion. A soft, hydrophilic polyurethane foam pad, which acts as a sponge, absorbs the moisture, is molded integrally with the sleeve, leaving the terry loops free for skin contact. For sports uses, knitted or woven fabrics may be employed, and stiffer, polyurethane foams are preferred.

Abstract: This invention relates to a protective device adapted to protect the hand, palm and wrist of a person while one is engaging in a sporting activity, such as skateboarding or football, and can also be used to retain the hand, palm, and wrist substantially immobile after an injury. The device has a contoured, generally rectangular shape constructed of a resilient, energy-absorbent material, such as plastic foam, which is coated or covered on at least one side with a covering layer. A bendable stiffening member is interposed between the covering layer and resilient material forming a sandwich-like construction. The peripheral edges of the resilient material and the covering layer extend beyond the peripheral edges of the stiffening member. The novel construction provides a generally cylindrical protective means when the device is worn. Suitable fastening means are provided to retain the device on the wearer's hand, palm and wrist.

Abstract: A split waistband garment with the improvement residing in the waistband construction whereby the front panel and rear panel of a pant leg are slidably, yet restrainingly, held together by a slider device.

Abstract: A warp-knitted fabric has pile loops on both faces thereof. The loops on both faces are continuous with each other so that when the fabric is used as a prosthesis, growth of tissue from one face to the other is facilitated. This feature is particularly significant when the fabric is fashioned into tubular form, whether straight or bifurcated. The structure of the fabric is such that a desired degree of rigidity is obtained with a thinner fabric than has hitherto been the case.

Abstract: A composite structure vascular prosthesis comprising a porous polytetrafluoroethylene tube in which the pores of the porous polytetrafluoroethylene tube are filled with at least one water-insolubilized water-soluble polymer, and a process for producing the composite structure vascular prosthesis.

Abstract: A prosthetic joint is comprised of three basic components. A first component is adapted to be associated with a first bone and has an arcuate bearing surface at one end thereof. The first component is constructed such that it may pivot on its bearing surface. A second component is adapted to be associated with a second bone adjacent to the first bone. The second component has a terminal portion at one end facing toward the bearing surface of the first component and has rigid walls defining an open-ended socket. The walls of the second component are connected to the first component in a manner to allow pivoting of the first component with respect to the second component. A third component has an arcuate bearing surface mating with the arcuate bearing surface on the first component. The third component is located in the open-ended socket with its walls embracing the same so that the mating bearing surfaces cooperate to carry the loading forces of the joint in use.

Abstract: Knee prosthesis for permitting total or partial replacement of an articulating portion or portions of the knee. The knee prosthesis is particularly adapted for attachment to one of the condyles of the knee, and includes a curved elongated body portion, a post fixedly attached to the body portion, and a plurality of cement holding rings attached to the body portion.

Abstract: The invention concerns a restroom for disabled persons. The problem solved by the invention is the difficulty which such persons experience when trying to use the various facilities of a conventional restroom. A restroom according to the invention includes a swingable wall carrying a bidet seat which is swingable around a horizontal axis and may perform two further functions. One of them is to allow the disabled person, while sitting on the seat, to move to and from a sanitary apparatus, such as a wash basin. The second function is to serve as a support when swung upwards to a vertical position.

Abstract: A child's toilet apparatus includes an elongated body having an opening therein and being adapted to be straddled in a seated position by the user. A seat flange is disposed at the rim of the opening and is adapted to support the user seated thereon. The flange is inclined downardly from the rear thereof terminating at the front of the body at an upstanding pedestal portion. A recess in the pedestal portion communicates with and faces the opening. A pour spout communicates with the opening within the body and enables the apparatus to be emptied. A handle is disposed on the body to facilitate pouring operations.

Abstract: A set of swimming pool steps of which the handrails are pipe members, one being part of the suction line of the water circulating and purifying systems and the other being the return line for the purified water. The handrail comprising the return line has its lower end blocked and is formed with one and preferably a plurality of lateral ports for injecting the purified water into the swimming pool in a direction substantially parallel to the wall of the pool where the steps are mounted. This arrangement not only makes perforation of the impermeable walls of the pool unnecessary but also provides a series of vertical streams of purified water in the pool to provoke circulation of the complete contents of the pool so as to permit improved mixture between the re-circirculated water and the water already in the pool.

Abstract: The invention provides a plastics lavatory seat which has an internal channel or cavity for containing liquid disinfectant and/or deodorant of the phenolic or cationic kind, the liquid and the plastics being compatible and the plastics being permeable to and capable of absorbing the liquid so that a hygienic seat is obtained.

Abstract: A flushing mechanism is disclosed for use in the tank of a toilet, utilizing a spool valve to accommodate various fluid pressures and to accomplish accurate control of volumetric flow. A housing is provided in the toilet tank, defining an inlet port which is adapted to be connected to the source of flushing fluid, e.g. water, and also defining a vertical valve chamber extending somewhat transverse to the inlet port and connected to control the discharge of water from the valve and out of the tank to the toilet bowl. The spool valve is provided in the valve chamber such that the facing surfaces of lands on the spool are subjected to the pressure of the flushing water source, to maintain a balance. Manual means is disclosed for displacing the spool valve to supply flushing water from the source while activating a hydraulic timer which, in due course, resets the spool valve. In the disclosed embodiment, the hydraulic timer involves a bleed tube for supplying water to the tank which contains a float.

Abstract: A bracket for mounting a bunk bed ladder from the bed rail of an upper bunk bed which engages both the top and inner bottom edge of the bed rail to prevent the bunk bed ladder from being accidentally lifted off and disengaged from the bed rail, to prevent the ladder from shifting along the bed rail, to reduce twisting of the rail and strain on the post or leg of the bunk bed, thereby reducing failure of bed rails, bed posts, and the ladders, and to prevent the ladder from tilting outward while climbing.

Abstract: A cantilevered lifting and transporting device which may be automatically or manually converted from a chair to a stretcher or vice versa. The lifting and transporting device is comprised of a U-shaped base having a pair of vertical telescoping supports on which a horizontal frame is mounted. The frame has two horizontal members or rods acting as fulcrums for supporting a rotatable back rest and leg rest which also provide support for a seat. The device is raised and lowered by a hand-cranked screw and nut combination in one of the vertical supports. An articulated connection between the rotatable back rest and the rotatable leg rest permits rotation of these parts from substantially vertical positions to horizontal positions. Attached to the rotatable back rest is an indexing plate which has a plurality of holes cooperating with a spring-biased plunger to lock the device in a variety of positions from upright to flat or in between.

Abstract: A patient support panel for a stretcher is formed of transparent material which is also X-ray penetrable. A marginal support frame for the panel can be detachably supported on a wheeled stretcher carriage. An X-ray film holder is suspended adjustably from the marginal support frame and a traction pulley assembly can be selectively mounted at either end of the panel support frame.

Abstract: A multi-layer mattress comprises inflatable tubes each of which extends across a dimension of the mattress and form part of one of a number of arrays extending through each layer. All the tubes of any one array of which there are optimally three, are inflatable in common and are arranged in substantial vertical alignment with a corresponding array in another layer. Sequential inflation and deflation of each array causes ripples to travel along the mattress so that a patient lying on it has his weight-supporting areas continually changed. A preferred embodiment has two layers of tubes, each tube of which extends across a width of the mattress.

Abstract: An auxiliary elevated wedge-shaped mattress of a resilient open cell synthetic resin foam having a sloping surface long enough to give support to the head, neck and thorax of a reclining patient with his legs supported by the horizontal mattress.

Abstract: An improved waterbed safety liner includes a base sheet which underlays the watermattress, and sidewalls extending upwardly from the edges of the base sheet to surround the watermattress and contain any liquid leaking therefrom. In one embodiment, an inflatable air chamber is integrally formed with the upper extent of the sidewalls to overlay a portion of the watermattress and provide buoyant edge support thereon. In another embodiment, a chamber formed integrally with the sidewalls of the safety liner are equal in height to the height of the watermattress, and are inflated either with air or with resilient foam material.

Abstract: A pillow is made from a strip of cloth or like material which is folded at the center to provide a pair of opposite sides which are stitched together at the side edges, the bottom edge requiring no stitching. A pair of strips of Velcro material extends across the open end and is stitched along the top and bottom edge of the strips to the open end of the two sides independently of each other and with the locking portion of the strips facing each other. The strips are approximately three-fourth inch in width and are of standard thickness and are applied to the underface of the ends and stitched in position before the side edges are stitched together.

Abstract: A lifejacket is provided comprising a one piece body member of moulded, flexible, plastic foam. The lifejacket is divided into three distinct portions; that is a headrest portion, a shoulder portion and a chest portion, the shoulder portion incorporating a neck aperture. A longitudinal slit is provided which extends through the chest portion from the neck aperture thereby dividing the chest portion into two similar parts. The longitudinal slit facilitates the fitting of the life jacket to a wearer. A one piece tape is provided which passes through two longitudinally spaced transverse bores, one extending through the headrest portion and the other through the chest portion.

Abstract: A toe pulling over and lasting machine operable on a shoe assembly formed of a last having an insole located on its bottom and an upper mounted thereon. The machine includes a support for supporting the shoe assembly bottom-down, a toe pincers operable to grip the toe end extremity of the upper margin, side pincers located on each side of and forwardly of the toe pincers operable to grip the upper margin heelwardly of the toe end extremity of the upper margin, and wipers operable to wipe the toe portion of the upper margin against the insole. Circuitry, actuated by a pedal operated control valve, causes the machine to go through its cycle. A three position selector valve is incorporated in the circuitry to determine positions, if any, the machine assumes when it comes to a halt during the machine cycle with a reactuation of the control valve causing the machine to resume the machine cycle after it comes to a halt.

Abstract: An anvil for supporting an outsole based upon an elastomeric compound, the outsole having a heel portion of greater thickness than the sole portion, during a process of imparting a multiplicity of slits to the outer surface of the heel and sole portions of said outsole. The anvil has a sole portion extending to a greater height than the heel portion of the anvil, whereby the multiplicity of slits may be imparted to the heel and sole portions of the outsole by a single reciprocating cutting blade in one continuous operation without removing the outsole from the anvil or changing the position of the outsole on the anvil. A method of imparting the multiplicity of slits to the outsole is also provided.

Abstract: This invention provides improvements to apparatus for automatically cleaning surfaces submerged in a liquid. Thus, there is provided an apparatus having a pivotally displaceable float by means of which the apparatus is caused to turn around when migrating up an upright surface so as not to break the surface of the liquid. The pivotal axis of the float is further tiltable, a tilting float being provided to tilt the pivotal axis to assist in displacing the float. The apparatus further has a sealing flange which has perimetral concertina-like folds so as to be resiliently extensible. Still further, the apparatus has a cleaning head, the region thereof that engages the surface to be cleaned having zones with differing frictional characteristics to cater for various surfaces. In a preferred embodiment this is effected by providing sockets in the cleaning head in which studs having the required frictional characteristics are secured.

Abstract: A bag spreader in the form of a relatively rigid plastic hoop temporarily inserted into the open mouth of a flexible plastic trash bag. The hoop includes integral, external spikes adapted to be driven into the ground through the bag. Leaves are then easily raked into the bag. An incline or guide may be provided to ease the raking of the leaves into the bag. A drawstring closure may be provided on the bag for later closing after the hoop has being removed, and the bag may further have a pair of holes for receiving the spikes of the hoop.

Abstract: A reciprocable soot blower that is adapted to extend laterally through an outer wall to remove deposits of slag that collect on the walls of a pressurized furnace, gasifier or other reactor. The soot blower is telescopically mounted in a conduit attached to an outside wall of the furnace to permit its complete withdrawal from the furnace when not in use. A steam seal is adapted to be activated in the conduit when the soot blower is extended to increase pressure in the conduit to thus prevent entry of foreign material from said furnace into the space between the conduit and the soot blower.

Abstract: A mobile cleaning apparatus for removing dirt and debris from the surface of parking lots and the like characterized by the ability to quickly and efficiently remove debris from the surface to be cleaned and dump the collected debris into a remote upstanding trash bin. The mobile cleaning apparatus includes a mobile vehicle chassis and a pickup head for gathering the debris comprising a pair of forwardly swept, diverging arms including an air pressure port adjacent each opposing free end thereof and a suction port at the juncture of the arms so that dirt and debris dislodged by the air pressure ports tends to move toward the rearwardly positioned suction port. The mobile cleaning apparatus further includes a collection hopper which is movably mounted on the vehicle chassis having a positively actuated door in the bottom thereof and means for raising the collection hopper to a predetermined rearwardly raised position so that the door may be opened and collected debris dumped into a trash bin.

Abstract: A solder evacuation system for removing molten solder from multiple holes in a printed circuit board. The system comprises a hollow cup assembly adapted to contact the printed circuit board. The cup assembly includes a resilient mouth adapted to contact the circuit board and encircle the molten solder area. Conduit means are connected to the cup assembly and in communication with the interior thereof. A vacuum source is connected to the conduit means and is operative for instantaneously generating a vacuum. The vacuum source comprises a hollow cylinder having a piston therein and a port to which the conduit is connected. The piston is connected to spring means which are operative when enabled to instantaneously pull the piston down the cylinder to create the vacuum. Quick-acting latch means are provided coupled to the piston to enable the piston to be withdrawn by the spring instantaneously in response to the unlatching of the latch means.

Abstract: The apparatus includes a rimmed base having support wheels. A pair of supports extend upwardly from the base; and a handle is pivotally connected to the uprights for movement between a use position in which the handle may be used for pushing the apparatus, and a dumping position in which the handle is rotated approximately 180.degree. about a horizontal axis to lift the container and disengage it from the base to a raised position in which it is free to be rotated for dumping the contents of the container. The handle includes a pair of depending extension members pivotally connected to the container at approximately the vertical and horizontal midpoints of the container to facilitate emptying the contents.

Abstract: Flexible bushing for supporting a pipe conduit on each side of a wall having an opening for receiving the bushing. The bushing includes an inner component forming a pipe portion adapted for mounting the pipe conduits coaxially thereof, an outer fastening component secured in gas-tight fashion to the wall at the opening and an annular rubber element forming a gas-tight connection between the inner and outer components. Annular protective flanges are associated with either the inner or outer component and under normal temperature conditions define an open slot between the inner and outer components and the annular rubber element. A barrier creator borders the slot and is adapted to be activated by the action of heat to close off the slot in a flame-protecting and, preferably, gas-tight manner.

Abstract: A knuckle joint hinge having a supporting-wall and a door part which are joined together by a knuckle joint mechanism formed by two link arms coupled pivoting together in their middle area, one end of the one link arm being articulated to the supporting-wall part and one end of the other link arm to the door part, the other end in each case being guided along a curve in space and coupled to the respective other part. In the portion of the knuckle joint mechanism that is formed by the door-side lever arms of the link arms, a filler piece is mounted so as to be variable in position. This filler piece is biased into a position covering the variable gaps which form between the door-side lever arms and between the lever arms and the door during the opening and closing movement, and it supports itself against the door or the door part, as the case may be, by means of a cam on its side facing the door.