Abstract: A pneumatic conveyor for particulate material of low weight per piece comprises a separator formed by a cellular rotor with a filter wall adapted to separate the particulate material as the carrying air flows to the suction side of a blower. The pressure side of said blower is in communication with a conveyor duct communicating with the separator and having a threshold forcing part of the air upwards into the rotor so as to pass the filter wall in the opposite direction, thereby blowing the filter clean before the air contributes to the further conveyance of material through the duct.

Abstract: An improved tilting device for a marine propulsion apparatus embodying a control circuit for continuously energizing the power means upon operator activation for driving the outboard drive to the extreme limit of its travel without necessitating continuous holding by the operator.

Abstract: A release arrangement for a sailboard footstrap (10) which has a female member (22) and a male member (74). The female member (22) is composed of two identical components (38,40) which locate together by means of pins (52,152) locating in apertures (154,54). Chamfered apertures (48,148) in resilient arm portions (46,146) of the female member (22) are adapted to receive and retain frusto-conical bosses (94,90) on the male member (74). The bosses (94,90) are located on a portion (82) of the male member (74), the sides (84,86) of which abut pins (52,152) when relative rotation of the members (22,74) about the engaged bosses and apertures (94,48; 90,148) occurs, the abutment serving to lever the bosses (94,90) from the apertures (48,148) at a predetermined magnitude of force exerted to cause rotation. The male (74) and female (22) members may also disengage at other predetermined magnitudes of forces exerted upon the arrangement in other directions.

Abstract: A transfer device in which the bar-shaped articles, in particular cigarettes, are transferred transversely to their axis by three rollers, of which one is disposed in an intermediate position between the other two and is tangential thereto at two separate points defining between them a transfer arc, and are made to advance along said transfer arc supported by respective cradles associated with a rotation device arranged to rotate the cradles about their axis at a constant angular speed equal to a whole multiple of the angular speed of the intermediate roller.

Abstract: A continuously operating bulk goods unloader which has by a vertical jib supporter (9) maintaining its direction been affixed to a supporting structure carrying the unloader and within the tubular vertical jib (1) of which runs an endless compartmented belt (5), onto which a detacher head (4) discharges bulk goods. The vertical jib (1) has been subdivided into a lower part (3) and an upper part (2), these parts being interconnected by a turnable joint (6), and the lower part (3) is tiltable with reference to the upper part (2) at the turnable joint, with the aid of pressure cylinder (8).

Abstract: A military tank is equipped with an auxiliary (extra) power source located utside the tank. With the tank engine inactive (non-running) the auxiliary power source can be energized to deliver power to the engine transmission and to the air-coolant fans for the engine. A tank, equipped with the auxiliary power source, can be subjected to a realistic live fire test of its fire suppression system even though the tank engine is inoperable or inactive.

Abstract: A bottom well of a vessel having at least one of a bottom and a broad side has a wall and cover-plate structure attached to the bottom or broad side for, together, defining the bottom wall. An inner space within the bottom well of the vessel has inside surfaces. A water inlet is in one of the bottom or broad side for communication of the inner space with outside water. A water outlet is in one of the wall and cover-plate structure for communication of the inner space with systems of the vessel. At least one resilient body is in the inner space for compensating for volume changes of water in the bottom well caused by the water freezing in the bottom well.

Abstract: The device concerns a waterhose wound around a bobbin, one end of the bobbin being provided with a quick-coupling having the form of a socket made of rubber or soft plastic connectable to water fittings of varying design.

Abstract: Apparatus for protectively enclosing and/or treating the submerged portion of a body floating on a surface of water, such as a boat hull, to prevent or reduce the growth of marine organisms on the submerged portion. The apparatus is formed of a generally rectangular frame having a depending water impervious envelope attached thereto sufficiently large to enclose the submerged portion of the floating body. The frame is formed of hollow tubular front, side and rear members with the front member being filled with floatation material which maintains the front member floating at all times on the surface of the water. Pump means are associated with the frame, preferably mounted the rear tubular member, with the pump adapted to pump water into the side and rear tubular means to cause the rear member to be submerged and moved pivotally downwardly about the floating front member so that the floating body, such as a boat, can be moved across the submerged rear member into the area defined by the rectangular frame.

Abstract: A parachute having a canopy with a number of suspension lines has a pair of losing flaps attached to opposite sides of the canopy. Holes in flaps match locking loops on an apron and the suspension lines are bighted to hold the canopy shut as the parachute is deployed. The suspension lines are incrementally pulled free from the apron while the parachute skirt remains closed. As the suspension lines reach the locking loops and are pulled free from the locking loops, air enters the skirt to cleanly open the canopy thereby preventing unwanted parachute opening anomalies.

Abstract: A new conveyor belt, which is adjustable in space between the rollers and in the height of the rollers, and which can also set up a conveying section at a given angle. The device mainly comprises a plurality of connection plates and roller rests. The connection plate may be made with a bend angle so as to set up a curved conveying section. The roller rest is furnished with three trumpet-shaped holes at different heights so as to have the rollers set up at a suitable height or at a desired slope.

Abstract: A compound helicopter shown in FIG. 1 of the drawings has wings 12 in addition to a helicopter rotor 14 and has twin powerplants 16 each including a low pressure compressor 18, a core engine 20, a power turbine 22 driven by the core engine and connected through a gearbox 32 to drive the helicopter rotor, and a variable area final, propulsion nozzle 24 which receives the exhaust from the power turbine. Augmentor wing flaps 28 are provided on the wings and fed with air from the low pressure compressor for providing additional lift and thrust from the wings. In operation, at take-off the nozzles 24 are fully opened and all of the power produced by the power turbines 22 is used in driving the helicopter rotor for producing lift. In addition, the augmentor wing flaps 28 are directed downwardly to provide lift. For forward flight the nozzles 24 are closed down, reducing the power to the rotor and slowing it down, while at the same time generating forward thrust.

Abstract: An apparatus for the distribution at a regulated rate of a fluidizable powdery material has a storage container (1), a porous wall and air conduit for fluidizing the powdery material and an orifice for discharging the fluidized powdery material. A casing (2) has two parts, an upper part (2A) connected to the storage container and to the orifice, and a lower part (2B) which is separated from the upper part (2A) by the porous fluidization wall (4). The upper part (2A) of the casing is connected at one of its ends (7A), to the storage container (1) by a column (3), at an upper part of its opposite end, to a balancing and degassing column (6) and, in its lower part (7B), to the outlet orifice (8) for the fluidized powdery material, which is disposed immediately above the level of the porous fluidization wall (4). The lower part (2B) is connected to an intake (5) for fluidization gas at a regulated pressure.

Abstract: An amphibious vehicle is provided with a watertight hull and pontoons for flotation of the vehicle in a body of water. At least one pontoon is positionable along each side of the vehicle. At least two pivoting arms are associated with each laterally extending pontoon for the purpose of moving each pontoon from a stowed position atop the vehicle to an operating position laterally alongside the vehicle. Each arm has one end attached to the pontoon and the other end is provided with means for moving the arm approximately 180.degree. about a pivot so that the pontoon may be moved into the desired position.

Abstract: Tug/barge apparatus comprises a barge with a notch in the stern shaped to receive the bow of a tug, and the barge being coupled to the tug by a rigid coupling member on the barge which is adapted to be releasably retained in a bearing socket member formed in the bow of the tug. The coupling member is made buoyant enough to float on the water and the bearing member is located in the vicinity of the water line at the bow of the tug so that the two are at essentially the same level when the tug moves into the notch in the stern of the barge to effect a coupling operation. The coupling and bearing members are releasably retained in coupled relation and prevented from inadvertent uncoupling thereof.

Abstract: An aquatic sport device includes a buoyant board configured for supporting a user in a prone position thereon and sized to enable the user supported thereby to manually paddle while in a prone position in order to move the buoyant board through the water. A sight opening is provided through the buoyant board in an optical system disposed therein enables a visual perception through the buoyant board by the user when the user is in a prone position. The optical system is configured for enabling the user to look through the board and perceive in a forward direction towards the bow of the buoyant board while paddling.

Abstract: The self-inflating convertible life raft may be launched from a distressed ship or a downed aircraft. Suspended from the sides of the hull are uniquely positioned anti-capsize water ballast bags which are fully retractable to allow for life raft maneuverability. In order to convert the life raft into an effective sailing boat; the mast, sails, lee board, and tiller-rudder assembly are stowed inside a standard-sized lift raft cannister or valise. This easily assembled gear allows the user to effect self-rescue by sailing the life raft to a chosen destination.

Abstract: An outboard engine has a power unit, an extension case extending vertically and having its upper end coupled to the power unit, and a propeller mounted on the lower end of the extension case and driven by the power unit. The power unit comprises an internal combustion engine having a vertically extending crank shaft and a cylinder having its axis extending horizontally, and a cover assembly covering the internal combustion engine. The axis of the cylinder is inclined to one side with respect to the axis of the propeller when viewed in plan. The outboard engine can be handled with utmost ease since it can be laid down during storage or shipment without being drained of engine oil.

Abstract: The invention relates to a swimming and bathing aid especially for young children with a chest ring 19 and with two arm floating elements 17, 18 which are connected with the chest ring 19. The chest ring has such a volume that it creates along the buoyancy necessary for swimming. The arm floating elements (17,18) do not dip into the water in a static swimming position and they are used as balancing elements against lateral swimming movements. For this the arm floating elements extend in a sideward upper direction from the upper arms (34, 35) and they are connected with the upper arms (34, 35) and with the chest ring (19). The chest ring (19) is divided at its rear side by a gap so that it can be adapted to different chest dimensions. The chest ring (19) is held together by a strip (30) which forms with the strips (26,27) a harness in which the arm floating elements (17, 18) the chest ring (19) and a child (33) are contained.

Abstract: This invention, a Center Stern Outboard Motor Mount For Double-End Canoes, is useful for mounting an outboard motor on a double-end canoe of any type or make, and places the weight and thrust of the motor at center stern. This arrangement is safer and more energy efficient than the side clamping motor mounts often used on double-end canoes. This Motor Mount consists of a block of material, such as wood, to which an outboard can be clamped, that is fastened to a rigid piece of elongated material such as aluminum or fibre glass, with bends and curves so as to conform to the profile of the stern deck and the stem of the canoe for which it is made, and is fastened securely thereto by a selection of bolts, taut lines, hooks and a locking peg, according to the pecularities of the various stern designs of double-end canoes.