Abstract: A catamaran vessel with a pair of spaced apart, parallel hulls which are made of sealed watertight configuration of composite marine material and interconnected by a deck and cabin structure with depending stilts joined to the hulls. The hulls have a wave piercing configuration in which the length to beam or fineness ratio of each hull is approximately 16.3:1 with a prow that is essentially knife-edged and vertical, the vertical section contours of the forward portion of the hull are elliptical and gradually transition to an essentially rectangular contour along the rear portion. The underside of the deck between the stilts has a convex undersurface which constitutes a planing hull structure above the top of the pair of hulls and between the stilts. The depicted vessel is power driven by motor-driven propellers at the stern of each hull.

Abstract: An arrangement in pay machines of the kind which include a coin or banknote verifier, a first computer unit which functions to activate an intermediate cash till or the like which is intended to guide coins or banknotes to a final cash till or to a coin cup from which the coins or banknotes can be recovered, and which also functions, subsequent to payment having been accepted, to activate devices for delivering the goods or the service for which payment has been made.

Abstract: A security post to be located within an entry to control vehicular access and comprising a tubular member (10) installed below ground with its upper end generally level with the surface, and having a hinged lid (14). A post (17) is slidable vertically within the tubular member (10) and is lockable by means of a key operated lockable handle (18, 19) which rotates to locate a locking bar in one of two vertically spaced slots (15, 16) to lock the post in a lowered or raised position whereby the post may be stowed away below ground when not required.

Abstract: A clamping system for traversing and clamping molds in a molding machine, the clamping system including a toggle-type clamp arrangement defined by a plurality of pivotally connected links. A movable crosshead is connected with one end of the toggle and is carried on a crosshead guide, and a ball screw is rotatably secured to the movable crosshead to extend in the direction opposite from the molds and through a stationary platen. A ball nut rotatably carried by the stationary platen is in engagement with the ball screw and is drivingly connected with a first motor to axially move the ball screw to provide between the molds a clamping force sufficient to resist separation of the molds during high pressure injection of molding material. A second motor is drivingly coupled with the ball screw and is movable therewith in an axial direction. The second motor is adapted to rotate the ball screw for rapid traverse movement of the movable crosshead to rapidly bring the molds into and out of contact.

Abstract: A method for determining and, when appropriate, compensating for the linear (heat) expansion of elongated bodies (1), such as physical length scales (1) or of elongated bodies which are intended to support physical length scales on, e.g., instruments or measuring machines equipped with physical length scales, in which measurement errors occur because of length deviations of the scale (1) as a result of deviations from a reference temperature at which the scale was calibrated.The method is mainly characterized by measuring the linear expansion of the body (1) in relation to at least one reference (6) made of a material whose coefficient of linear (heat) expansion (.alpha.) deviates from the coefficient of linear (heat) expansion of the body material, and thereafter determining, when appropriate, a compensation factor for correcting the body length.The invention also relates to an arrangement for carrying out the method.

Abstract: A novel table type tennis game apparatus comprising a base section which is formed by a center plate and two end plates assembled and held together by vertical walls from which a ping pong ball might ricochet during playing. Each of the flat plates forming the base section is foam molded from a thermoplastic material and includes a reinforcing lattice type rib construction and integrally molded slots which cooperate with tabs on the side walls to hold the game apparatus together. A net connects to and extends between the side walls and includes an elastic portion by which tension is applied to the net and the side walls.

Abstract: An extruder screw mixing head that is adapted to be carried by an extruder screw at a downstream portion of the screw for improved distributive mixing. The mixing head includes a central body that tapers and diverges in a downstream direction to provide a progressively diminishing flow channel in an axial direction of the mixing head. Four equally spaced flights of equal pitch are provided on the outer periphery of the mixing head, and each flight has a series of peripheral recesses that are spaced from each other along the flights and that permit flow of plasticated material between adjacent flow channels defined by the spaced flights to improve homogeneity of the material. The recesses are so configured that their respective leading and trailing edges are aligned to define circumferential angles with the longitudinal axis of the mixing head, so that the inter-channel flow areas of the recesses increase in a direction toward the outlet of the extruder barrel.

Abstract: A cutting tool equipped with a tool state detector which comprises temperature sensors and conductors which are placed on the tool. The invention is characterized in that two or more temperature sensors (10-13) are placed on the tool (1) at mutually different distances from the tool cutting edge (3), so that the temperature distribution in the tool (1), at least at the cutting edge (3) and its immediate vicinity, can be established from electric signal emitted by the sensors (10-13), and that at least some of the sensors are so placed that one or more of the sensors will be worn away in successive sequence as the tool (1) wears. The temperature sensors (10-13) are preferably thermoelements.

Abstract: A container for dispensing pills, tablets or capsules and comprising a box (10) having hinged lid (16). The box (10) contains a removable compartmented tray (21) having, in the example illustrated, seven rows each of six compartments (22) for containing items to be dispensed, and representing the days of the week and six periods during each day. The compartments (22) may be viewed through a like number of windows (17) in the hinged lid (16), each row being occluded by a transparent sliding shutter (18) which may be slid open progressively to permit the contents of each compartment (22) to be discharged. The entire container may be filled without removing the tray (21) from the box (10), and information such as medicines and patient details, is visible through windows (28) on the underside of the box (10) and through a window (29) on one side wall (12) thereof.

Abstract: Apparatus for laying flexible pipe within a trench and for embedding the flexible pipe within a bed of gravel in a single operation. The apparatus includes a gravel hopper and a guide sleeve for guiding a pipe to be laid within the trench. The hopper includes a skid or sled arrangement to permit it to be pulled along the trench bottom, and has a width to permit it to be completely positioned within the trench and thereby accommodate a wide variety of trench depths. A feed guide support stanchion extends from the front portion of the hopper for facilitating the feeding of a flexible pipe into a pipe guide inlet positioned adjacent the bottom portion of the front wall of the hopper. The hopper interior is divided into a main, narrow portion, and a rear, enlarged portion, the side walls of which are adapted to engage the side walls of the trench. The hopper rear portion side walls have a small surface area to minimize sliding friction with the trench walls.

Abstract: A sanitary concentric tube heat exchanger for cooling or heating flowable or pumpable products is disclosed. In one embodiment, two concentric tubes are sealed together with inlet and outlet openings. The product is allowed to flow through the outer of the two tubes while the heating or cooling medium flows through the inner tube. In another embodiment, a third concentric tube surrounds the product tube and is used for the flow of additional heating or cooling medium. A securing clamp open on one end of the product tube secures the product tube to the outer surface of the inner tube and can be easily dismantled for cleaning purposes. A seal assembly secures the other end of the product tube to the outer surface of the inner tube and permits relative movement between the inner tube and the product tube for accommodation of thermal effects during operation, and also to allow the asembly to be easily dismantled for cleaning or inspection.

Abstract: Apparatus for measuring the loaded axes of the foot is disclosed. The apparatus is particularly well suited for location of the ankle (talo-crural) and subtalar (talo-calcaneal) joint axes. The apparatus inludes a platform having one major axis of rotation to which either the ankle or subtalar axes can be aligned. The platform is hung from this fuxture axis and has adjustment for both height and pitch. The platform is adjustable from side to side and rotates about the perpendicular to the hanging support.

Abstract: Method for detecting marks (3) present on a paper web (1), which consists of successively producing and preferably recording light-intensity data in the form of intensity indications, using two alternate set-point values of light intensity representative of the presence of a mark or a non-mark. The method uses a process, deciding whether a certain light-intensity indication (V(new)j), shall be attributed to a mark, by selecting as a set-point value (V(old)j), one of the two alternate set points, either the nearest preceding indication (V(old)j) which has been adjudged as indicative of a non-mark and which essentially indicates light background of the paper web (1), or a preceding indication (V(old)j) which has been adjudged as indicative of a non-mark and which has been subjected to an intensity reduction of pre-determined magnitude (UP). There is also an apparatus for carrying out the method.

Abstract: The invention concerns a cold-worked steel of high compressive strength for tools and parts simultaneously subjected to several stresses.The steel of the invention evinces a composition in % by weight ofC: 0.6 to 1.5Si: 0.2 to 1.6Mn: 0.2 to 1.2Cr: 5.0 to 10.0Mo: up to 3.0W: up to 6.0(Mo+2W): 1.0 to 3.0V: 0.3 to 1.5Al: 0.2 to 1.6Nb: up to 0.5N: up to 0.1the remainder being iron and process-entailed contaminations, and it is especially provided for tools and parts comprising an anti-wear layer made at higher temperature.

Abstract: An infeed arrangement for feeding sheet-like objects, primarily banknotes, into a space in which the objects are stacked, one upon the other, and to which the objects are fed through an infeed aperture from an external location. The invention is characterised in that the infeed arrangement comprises an infeed path (1) which includes at least one endless belt (2) which is arranged to move past the infeed aperture (5, 7). The infeed path (1) includes a flat part (11) beneath which an object (12) fed into the arrangement is intended to be deposited. The path (1) includes downstream of the flat part (11) a curved part where the path turns back towards the infeed aperture (5, 7).

Abstract: A convertible stroller and car seat including a housing positioned below a seat portion for receiving a pair of front wheels and a pair of rear wheels in retracted condition. An operating handle extends outwardly through the rear wall of the housing and is connected to a rotatable actuator disk from which connecting rods extend to respective wheel assemblies supporting the wheels. Movement of the handle from side to side causes the actuating disk to rotate, thereby either extending the wheels from the wheel housing or retracting the wheels into the wheel housing. One pair of diagonally opposed wheel carriers is adapted to pivot directly into and out of the wheel housing, and the remaining pair of diagonally opposed wheel carriers pivots into and out of the wheel housing and also rotate by 90.degree. so that the four wheels when fully extended each lie in parallel planes for ease of use of the stroller.

Abstract: A method and a machine for processing belly flaps from a front part of a fish which has been parted into a rear part and a front part. According to applicant's co-pending U.S. application Ser. No. 716,738, it is known to move by spiked chain at each side, the front part of a fish with the belly foremost and the head farthest back, along a fixed straight track to a fixed U-shaped beam, which is a belly scraper. The belly of the front part is threaded upon the belly scraper which scrapes the inside of the belly cavity so that the entrails are loosened from the front part and moved into and along the belly scraper. The leading end part of the belly scraper has a knife edge and an elevation in the floor, and cuts the pectoral nose from the gills and the tongue so that the tongue moves into the belly scraper, which pierces downward and out from the head through the pectoral nose. The jaw bones move on top of the belly scraper along its upper edge, and the belly flaps move to the sides.

Abstract: A chain-type fuel feeder which includes a chain conveyor that deposits coal onto a rotor which then throws the coal into a boiler-type furnace. The conveyor is driven from the shaft of the rotor by way of a novel, variable speed control assembly which includes separate, individual, totally integrated, commercially available drive units mounted on the sidewall of the feeder and exposed to ambient air so as to avoid overheating of the drive components and the problems associated therewith. The various drive components are arranged so that they are readily accessible for adjustment, repair, or replacement.

Abstract: A method for handling floor covering (2) comprising floor-cover sections provided with a textile outer surface, comprising taking-up the floor-cover sections from a substantially flat support surface (4).The method is characterized mainly by gripping a floor-cover section (2) automatically in conjunction with taking-up the floor-cover sections, by means of a gripping device (5) forming part of a mobile pick-up unit (1). The gripping device includes needle-like gripping elements which are inserted at least into the outer surface of the floor-cover section, which is lifted from the support surface (4) by the needle-like gripping elements and subsequently released from engagement therewith.The invention also relates to apparatus for carrying out the method.

Abstract: A cradle for use in blood donating processes comprises surface (2) which is intended to support a blood-collecting bag and to be rocked reciprocatingly on an axle (4) which extends perpendicularly to the surface, by means of a crank (5, 7). The cradle is provided with a weight measuring device (8) which functions to measure the quantity of blood that has flowed into the bag, and is also fitted with a clamping device (11) which functions to clamp-on or squeeze the hose such as to prevent blood from flowing therein and which is operable electromagnetically. The cradle is further provided with a control circuit (21) which is constructed to control at least the clamping device (11).