Abstract: A heat receiver is provided comprising a housing through which the breathing mixture passes in one direction and through which the exhaled breath passes in the opposite direction. The housing contains heat conductive elements through which the breathing mixture and exhaled breath pass and spacers positioned one between each pair of adjacent heat conductive elements. The spacers are poor heat conductors and non-hygroscopic to minimize moisture retention. In use, exhaled breath warms the heat conductive elements sequentially so that each element will be slightly cooler than the last element exposed to the exhaled breath. There will be minimal heat stored in the spacers and the moisture content of the exhaled breath tends to be carried through the device so that upon drawing breathing mixture through the device a substantial part of the sensible heat originally in the exhaled breath will be reclaimed by the breathing mixture. The latent heat originally in the exhaled breath will be lost.

Abstract: A paint scraper has a blade holding portion, having a slot in which is releasably mounted a paint scraper blade. The blade has a pair of different, opposed paint scraping edges. The first edge is straight and smooth, and is used for fine scraping work. The second is toothed, serrated and is used for coarse scraping work. The blade is readily removed from the slot and reversed or replaced, to change from one mode of operation to another.

Abstract: A glove blocking apparatus comprises a heated mandrel which consists of first and second separate glove receiving members. The glove receiving members can be moved between a first adjacent closed position and a second mutually separated position by power means. A glove to be blocked is mounted over the mandrel with the glove receiving members in their adjacent, closed position, and then the glove receiving members move to their separated position to stretch the glove. Stop means are provided to define the second, separate position so as to assist in determining the final size of the glove. There may be one such apparatus for stretching the palm portion of the glove in an endwise direction, and a second such apparatus provided with finger stall receiving formations, for stretching the glove and the finger stalls thereof in the face-to-face direction.

Abstract: A new rotary cleaning device especially suited for cleaning dirt and debris from conveyors consists of one or more pluralities of T-shaped members mounted around a central mandrel with the cross-bars touching the mandrel exterior surface and providing respective circumferentially-extending shoulders spaced from the mandrel face. The mandrel is provided with radially-extending apertured plates between which the T-shaped members extend, the plate apertures receiving retainer bars which engage the shoulders of the T-shaped members. The assembly is locked together by axially movable wedges inserted between each retainer bar and the edge of the aperture through which the bar passes. Preferably the cleaner members are integral T-shaped pieces of resilient material, such as neoprene. Each wedge has a step face to determine its maximum insertion into the respective aperture.

Abstract: Decorative leaded panels of translucent or transparent thermoplastic material, such as windows, lampshades, or illuminated signs, are made by affixing metallic lead strips to the surface of a thermoplastic sheet by means of solderable securing means such as lead bolts, lead rivets or molten lead inserted through an aperture drilled through the lead strip and at least part way into the body of the thermoplastic sheet, and then soldering to complete the joint. The lead strip may delineate and surround portions of a decoration such as a painting applied to one surface of the thermoplastic sheet so that the finished article may have the appearance of a leaded stained glass window. An additional sheet of transparent or translucent thermoplastic may be applied to the decorated surface so as to protect the decoration.

Abstract: A device for arranging playing elements such as dominoes and the like in upstanding disposition on a surface, in serial arrangement and spaced so that they will all be knocked over when the end member of the series falls over, comprises an element storage member and a wheel structure in a housing. The wheel structure consists of two axially spaced discs with peripheral notches. As the wheel structure is rolled across the surface, the elements are taken from the storage element, around the wheel while supported in the notches, and deposited on the surface at the bottom of the wheel where they are disengaged from the wheel in an upright disposition.

Abstract: A storable holder for a container such as a glass cup, mug, bottle or can, intended especially for use in boats and mobile homes consists of a recessed base, a yoke member and a ring member. The yoke member is pivoted by an axle to the base member and can be moved between stored and operative positions about a yoke axis, while the ring member is pivoted to the yoke member so as to assume a horizontal position under gravity when in the operative position. The ring member includes two flexible loops of ferromagnetic material (e.g. chain) depending therefrom at right angles to one another and joined together at the bottom so as to engage the bottom of a container in the ring and retain it in the holder. The yoke and ring are accommodated in the recess in the base in their stored positions, and the base includes a magnet against which the flexible loops are stored by magnetic attraction.

Abstract: Process and apparatus is described for mining of subterranean carbonaceous deposits such as tar sands, in which the deposit is treated in situ with circulating high pressure jets of heated mining fluid comprising water in admixture with gaseous hydrocarbons, or carbon dioxide and the deposit is also subjected substantially simultaneously to mechanical grinding in the vicinity of application of the circulating jets, so as to free and grind the deposit and float the separated carbonaceous portion to the surface. The mining tool has an umbrella-like action, comprising a plurality of mining arms carrying jets and potatable mining teeth or cutters, the tool being rotatable down hole to mine the deposit, and the mining arms thereof being radially expandable below ground, so as to enlarge a pilot hole drilled initially, into a large production hole for large scale mining projects.

Abstract: A sailboat racing game comprises a game board having a grid pattern of interfitting connection means, and sets of sailboat representing playing pieces with complementary interfitting connection means. Each playing piece has a pair of interfitting connection means, e.g., pegs, to be interfitted in complementary holes of the grid pattern of the baseboard. The pegs of each playing piece are separated from one another by a characteristic distance, which determines the direction of travel of that playing piece across the board by interfit of the pair of pegs in the grid. Indicia are provided on the playing pieces, to indicate this direction of travel. A player determines his course of sail by selection of the appropriate playing piece. The separation of the pegs also determines the speed at which a given playing piece travels, since a playing piece moves a distance across the grid corresponding to its peg separation on each move.

Abstract: A bicycle seat support comprises an outer tubular member and an inner tubular member telescopically slidable therein, the inner tubular member protruding from the open upper end of the outer tubular member and having the bicycle seat clamped thereto. A compression spring is located within the outer tubular member to urge the inner tubular member upwards and resiliently resist downward movement of the inner tubular member and bicycle seat, to act as a cushion for the bicycle seat. A lock is provided, at the top end of the outer tubular member, whereby the inner and outer tubular members can be locked together to render the spring inoperative, the lock being manually operable and within easy reach of the user riding the bicycle.

Abstract: An alcoholic beverage of good clarity and alcohol content in the 12-16% by volume range, namely wine or cider, is made in a space of about 28 days by mixing together water, sugar and a rapid ferment and flavor conferring composition, maintaining the mixture under fermentation conditions for about 28 days, and then removing the liquor from the solid sediment. The composition comprises a mixture of, firstly, the dried granulated product prepared by mixing the yeast nutrients ammonium phosphate, urea, monobasic potassium phosphate and tricalcium phosphate with water to form a paste, then drying and granulating the solid mixture from the paste; and, secondly, a combination of flavor conferring and fermentation ingredients including a wine yeast, food grade lecithin, calcium carbonate, sodium citrate and an organic acid such as malic acid. For a wine beverage, freeze-dried wine powder may be added. For a cider beverage, apple juice powder is added.

Abstract: In a method of galvanizing a portion only of a ferrous metal article, in particular for galvanizing one side only of a thin flat ferrous metal strip, the material used for forming a protective coating on the part of the article not to be galvanized is a suspension comprising a liquid suspending vehicle consisting of water and from 5 to 20% by weight, preferably from 6 to 16%, of the powdered hydrated form of magnesium silicate known as talc. The suspension preferably also includes a bonding or etching agent to increase the adherence of the coating to the article, a wetting agent to facilitate spreading of the coating, a thickener to facilitate the suspension of the powdered material and a defoamer if necessary.

Abstract: A swimming pool cleaning device comprises an elongated handle, a frame at one end of the handle, a skimming bag, e.g. a wire mesh or a nylon net mounted in the frame for skimming purposes, and brush bristles protruding laterally outwardly from the side surface of the frame. The device permits debris clinging to the sides and bottom of a pool to be freed, by use of the brush bristles, and then immediately caught in the skimmer for removal purposes.

Abstract: Polymer compositions which have accelerated rates of degradation on exposure to ultraviolet radiation, e.g. direct sunlight in an outdoor environment, comprise a blend of a major proportion of a normal, standard synthetic polymer, e.g. polyethylene, and a minor proportion of a graft or block copolymer of a ketone group containing monomer, e.g. methyl vinyl ketone, graft or block copolymerized onto a backbone polymer e.g. of polyethylene. The composition can be molded, extruded and otherwise fabricated in the normal way to produce disposable, photodegradable plastic articles such as containers, wrapping films and the like.

Abstract: A low toxicity, corrosion and scale inhibiting composition for use in recirculating aqueous systems, e.g. in heat exchangers, comprises from about 3-1,000 parts by weight of molybdate, from about 0.5-1,000 parts by weight of an organic cationic or non-ionic surfactant, from about 0.3-1,000 parts by weight of a water soluble polyphosphate and from about 0.05-500 parts by weight of an azole, for example tolyltriazole. The composition is water soluble or water dispersible, and is effective in very small amounts (3-3,500 ppm) for corrosion control of metals such as carbon steel, copper and aluminum exposed to circulating water.

Abstract: A pack of playing cards comprises forty eight split-value cards, the front face of each of which is divided into two visually distinctive zones by means of a diagonal dividing line. Each of the visually distinctive zones represents a different playing card suit-value combination, the arrangement being such that, through the forty eight split-value cards, there is a first zone representing each of the card values ace through three of each of the four suits clubs, diamonds, hearts and spades, and similarly there is a card with the second visually distinctive zone representing each of the same forty eight card suit-value combinations. There is no coupling of similar card-values on the same card of the forty eight split-value cards. The pack is completed with four deuce cards, each having two visually distinctive zones, but both of the zones representing the deuce of the same suit. The pack may also include one or more jokers of conventional design to be used as wild cards.

Abstract: A back-washable filtering element, especially for use with pumps, and more particularly for use with pumps that handle liquids with solid material entrained therein, consists of a helical coil spring disposed in a flow path for the liquid to be filtered. A movable element in the flow path is mechanically connected to the spring and compresses it axially under the effect of the back washing liquid to automatically reduce the flow capacity. The resultant "shrugging" of the spring also permits it to clear itself of filtered material to facilitate the back-washing.

Abstract: The invention provides a self-steering dolly that is rigidly releasably connected to the rear of a forward vehicle, such as a tractor-trailer combination, and supports the front end of a towed rearward vehicle, such as a second or "pup" trailer so that the vehicles are in tandem. The wheels of the dolly are mounted on respective king pins; are connected by a linkage and are urged to the neutral or straight-ahead position by a centering device. The means for releasably connecting the dolly and the forward vehicle comprise two transversely extending headed pins on the dolly of the kind employed with a fifth wheel connection engageable in respective releasable spring latches on the frame of the forward vehicle.

Abstract: Apparatus is provided for use in aligning a new pipe section with an existing pipe section to facilitate welding the new pipe section to the existing pipe section. The apparatus is adapted to fit within the pipe sections and to be moved longitudinally along the pipe sections and includes an actuator means disposed longitudinally and including a longitudinal rod; a plurality of spaced-apart radial elements; means fixedly coupled to the actuator means and defining radial guides for the radial elements to guide the elements between a withdrawn position and an engagement position in which the elements are positioned to engage both the existing and the new pipe sections to thereby align the new pipe section with the existing pipe section; and a plurality of links attached one to each of the radial elements and to the longitudinal rod.