Abstract: A double barrelled firearm includes first and second parallel barrels attached to a casing which includes a pair of spaced parallel arms. A firing lever is pivotable about a bearing extending between the spaced arms from a first non-firing position to second firing positions successively inwardly of the casing. A bolt is slidably mounted on the casing at a location rearwardly of the barrels. The bolt has first and second firing pins aligned with the first and second barrels. The first and second firing pins have extending therefrom respective first and second stops of different lengths. The first and second firing pins are urged toward the first and second barrels respectively. The firing lever has on a first end thereof a guard which, when the firing lever is in the first non-firing position thereof, acts on the first and second stops to maintain the first and second firing pins spaced from the first and second barrels, against the force of the urging means.

Abstract: A loading device for the rounds or cartridges of a revolver comprises a generally circular array of pockets receiving the individual cartridges and a ring which can be grasped by a finger to draw the loading device away from the cartridges. The unitary device has a closed cartridge ring, which can be injection molded around the cartridges and has the finger ring disposed at one side, is provided with at least one weakened zone. The weakened zone enables the cartridge ring to readily spread open. The pockets for the cartridges preferably open inwardly toward the axis.

Abstract: A simple lubricator-loader provides for lubrication of a bullet for a muzzle-loading firearm and then for insertion of the bullet into the firearm. The lubricator-loader is so constructed that both operations can be effected without bringing the fingers into contact with the bullet subsequent to lubrication thereof.

Abstract: A trolling device in the form of a buoyant underwater plane with forward and rearward swept back wings on an elongated body. Heavy spheres loosely located in compartments within the elongated body start underwater oscillation.

Abstract: There is disclosed a hollow form building block useful for toys as a constructional block for play houses, forts, and the like, which is formed of inexpensive sheet material such as corrugated cardboard. The block element is a hollow-form, polyhedron that is provided with end walls, one of which has a polygonal aperture and the other of which has a coacting polygonal raised rim that is formed by folded tabs cut from the end wall and coacting tabs folded from an underlying end wall. The raised rim coacts with the apertures of other block elements to provide element-to-element interconnecting means and the raised rim also functions to secure the hollow-form block structure of the assembled, folded block element.

Abstract: A system of illuminating flying saucer-type toys for use at night or when visibility is poor by chemiluminescence. The invention includes a system for such illumination by the insertion of a hoop-shaped device to the underside of the toy. The hoop-shape is formed from a flexible rod-like device containing chemiluminescent materials.

Abstract: A spin tower station for use with a toy vehicle and a trackway network connecting a plurality of stations, each with its own unique amusement function. The spin tower station, which receives a vehicle at a station entry port and simultaneously moves it translationally and rotationally to a station exit port positioned below, includes a base, two telescoping cylindrical elements extending upward from the base, a vehicle platform mounted on the upper element and normally positioned at the entry port by a spring mounted within the lower element, and a spiral flange on the upper element which engages a stationary guide notch to rotate the upper element as it descends against the force of the spring under the weight of a vehicle on the platform. After the vehicle departs the exit port, the spring forces the platform upward to await the return trip of the vehicle.

Abstract: A model vehicle of the steerable road racing type for confined movement along a trough type roadway or track of plural land width including a dirigible wheeled chassis carrying a drive motor, a clutch mechanism operative to drive the wheeled running gear continuously in forward direction upon actuation of the motor in opposite directions, and an operating mechanism steering the running gear in opposite directions responsive to the motor running in opposite directions for controlling vehicle movement between lanes and along a selected trough side wall.

Abstract: A tree stand comprises a rigid base; a plurality of resilient bars each having a bend and a first portion extending substantially vertically downwardly from the bend and terminating in a free end. The first bar portions are arranged in a circular array and together define a generally cylindrical shaft for receiving the trunk of a tree and holding the same by a resilient clamping force. Each resilient bar further has a second portion extending from the respective bend obliquely downwardly and away from the shaft and is affixed to the base.

Abstract: The invention relates to a device for supporting and training plants and in particular for layering tomato plants. It comprises a longitudinal stem portion formed with an integral hook which is adapted to grip and slide along a support wire which is mounted above and parallel to the plant row, and a spool rotatable about a cylindrical bearing surface of the stem portion. The spool carries a support cord which passes upwardly from the spool, through an aperture in the top of the stem portion and down through the hollow interior of the stem portion to where it is tied to the stem of the tomato plant. When it is desired to layer the plant the stem portion is moved along the wire and simultaneously the spool is rotated to pay out sufficient cord to layer the plant. Rotation of the spool is controlled by means of ribs on a flange of the spool which engage with the horizontal support wire.

Abstract: The production of sunflower seeds (i.e. Helianthus annus seeds) is an important industry in the United States as well as in many other parts of the world. Such seeds are useful in the production of sunflower oil or may serve as a food source for man and other animals. The present invention provides a novel and highly effective technique for enhancing the production of sunflower seeds via an agricultural process wherein a greater proportion of the florets which make up the sunflower are effectively pollinated. The production of sunflower achene which lack the desired kernels accordingly is minimized and a greater seed yield is made possible per growing area.

Abstract: This invention relates to a louver shutter with movable louver boards in which a set of adjustable louver boards capable of opening and closing are aligned in one side, the upper part, or lower part of the panel of a louver shutter or door, thereby to permit good ventilation, lighting and shielding of the room, to serve security purpose, and to prevent entry of rain water and harmful insects into the room. This invention provides a very practical and inexpensive louver shutter of simple mechanism which is sturdy in construction, easy to operate, and can be mass-produced, without any disadvantages encountered in conventional ones as disclosed in U.S. Pat. No. 3,991,518.

Abstract: A conventional garage door opener assembly has integrated therewith an electrically actuated solenoid assembly at each side of the garage door actionable between the garage door frame and the door. In the case of a solidly assembled door pivotal between closed and opened position, the solenoid assemblies are mounted near the lower extremities of the door so as not to interfere with door movement, while still being capable of locking the door in closed position. The solenoid assemblies are interiorly secured at the door frame sides with the housings thereof permanently projecting across the clearance spaces between the door frame and door and interiorly overlapping the door with the solenoid plungers projectable therefrom in this overlapping positioning into aligned latch members secured interiorly of the door.

Abstract: The border element of a double glazed window unit of the casement of awning type includes an elongate unitary body formed entirely of vinyl plastics; its cross-section defines: a glass-receiving base portion including a web and a pair of legs surrounding the outer marginal edges of the glass sheets; a first enclosed hollow portion integral with the opposite face of the web and defining a first insulation chamber; and a second enclosed hollow portion integral with one of the pair of legs and with the front wall of the first chamber to thereby define a second insulation chamber. A window unit is thus provided where the metallic components used for the support and the operation of the window are enclosed within these insulation chambers and where effective insulation between both faces of the window unit may still be maintained.

Abstract: The bowden cable drivingly connecting a crank on a motorcar door to a carrier for the window in the door has a plastic compression member whose ends abuttingly engage retaining members near the crank and the window carrier. The ends are of non-circular cross section, and their angular movement about the longitudinal axis of the cable is prevented by conforming engagement with respective retaining members.

Abstract: A process and apparatus for the treatment of the recording surface of magnetic recording media using consecutively arranged units for burnishing, cleaning and calendering the web of plastics film provided with a magnetic coating. The process and apparatus of the invention are particularly suitable for the manufacture of magnetic tapes for the recording and playback of video signals.

Abstract: A method and apparatus for controlling the time cycle of a vibratory finishing machine by providing a workpiece finishing media transfer device for transferring finishing media from a suitable source thereof to inlet and outlet zones of the finishing chamber and providing a ratioing mechanism for selectively proportioning the media supplied from the source thereof to the first and second transfer means.

Abstract: This invention is a work holding device that holds a stone in contact with an abrading surface for grinding of the stone.The stone is continuously moved across the face of the abrading surface in an arcuate path to expose the stone to fresh abrading surface and to avoid grooving of the abrading surface as would occur if the stone was held in a stationary position.A dop-holding tong is held on a platform. The platform is pivotally mounted on a base and the platform is rotated in an alternating direction by a motor driven crank-slide that provides movement to the platform and the stone bearing dop.

Abstract: A method of controlling infeed in simultaneously grinding the inner and outer diameters of an annular workpiece with a multiple infeed speed.

Abstract: Stainless steel belts having a thickness of about 0.060 inch used for casting sheet materials such as acrylic plastic sheet are refurbished by first grinding the back surface of the belt until no further distortions can be removed and then grinding the mirrored surface of the belt until said mirrored surface is uniformly dull and thereafter polishing the dulled surface to a mirrored finish. During the grinding and polishing, the belt is cooled to avoid local overheating.

Abstract: A method for the production of a disk-shaped silicon semiconductor component with at least two adjoining zones of opposite type conductivity and different doping strengths using a lapping disk which includes the steps of positioning and semi-conductor component adjacent the lapping disk, subjecting the semiconductor disk to a suction pressure on its side opposite the lapping disk so as to be bowed up from an initial lapping plane with a radius of curvature corresponding to a desired angle, lapping the semiconductor disk with the rotating lapping disk and beveling off the bounding surface of the semiconductor disk opposite the plane of a pn-junction separating the two zones.

Abstract: An internal lapping tool comprises a steel mandrel having a cast iron generally cylindrical head welded on the front and thereof. The head is formed with two spaced arcuate lapping faces opposite a longitudinal slot which carries a cast iron insert providing a third arcuate lapping face. A wedge member slideably mounted for longitudinal movement in the mandrel provides for moving the insert radially. The three arcuate lapping faces on the rotating head provide a three point contact on the wall of a hole being lapped, thereby effectively producing a round mating form as desired for lapping. Futhermore, as the arcuate faces wear and the hole enlarges during the lapping operation, the arcuate lapping faces are kept snugly at all times against the cylindrical wall of the hole being lapped by the longitudinal positive feed of the wedge member.

Abstract: A machine for conveying and blast treating workpieces by an abrasive or blasting medium includes at least one rotatable barrel or drum in a blasting chamber, the axis of rotation of the drum being inclined downwardly in the direction of conveyance. The diameter of the drum decreases in the direction of conveyance and a blast wheel is mounted at the upper, larger, input end of the drum. The lowest generatrix of the drum is horizontal or slightly inclined upwardly in the downstream direction. In a preferred embodiment, the drum diameter decreases in stepwise fashion. Axially extending impeller members in the drum provide for uniform travel of the workpieces. In one embodiment, a discharge drum and a housing drum are rotatable with the blasting drum.

Abstract: A shot blasting machine for shot blasting wire or rod-like material is of the kind comprising two centrifuge wheels in a closed housing which has an inlet for blasting shot or sand, means for conducting the wire rod material to be blasted through the housing between the centrifuge wheels, and an outlet for scale blasted from the wire or rod material. The centrifuge wheels are rotated in the same direction as each other, the region between the wheels where blasting takes place is divided into two sections by a wall, which permits the passage of the material to be blasted through the region, the shot or sand, in operation passing from one wheel to the other wheel in one section and from the other wheel to the one wheel in the other section, and a guide device being disposed adjacent each centrifuge wheel one in each section to direct the shot or sand from the wheel against the material to be blasted.

Abstract: A combination drip edge member and rake is provided for use in conjunction with a building construction having a roof for protecting the roof edge from water and a backup damage. The combination comprises a first portion which flatly abuts against the roof and extends outwardly so that the outer edge of the first portion is spaced from and substantially parallel to the edge of the roof. A second portion of the combination extends adjacent to and underneath the first portion between the outer edge of the first portion and terminates closely adjacent the roof edge while a third portion engages the roof edge and extends substantially vertically downwardly from the inner edge of the second portion. A fourth portion of the combination extends substantially horizontally inwardly from the lower depending edge of the third portion and terminates substantially at the sidewalls of the building construction.

Abstract: A cover formed of sheet material which is removably placed over a roof gutter to prevent the accumulation and build-up of ice in the gutter and under the roof shingles. The cover extends under the lower row of shingles on the roof and then over the gutter where its leading edge is removably attached to the outer edge of the gutter. The outer edge of the cover has a generally U-shaped groove formed of spaced apart downwardly extending flanges which embrace the bead of the groove to hold the cover securely but removably in place. Other forms of covers having different gutter attaching means are also provided.

Abstract: The invention comprises an assembleable mantelpiece, which includes a mantel, a pair of side members, and means for positioning and securing the mantel and pair of side members relative to each other and relative to a fireplace, so as to enable the mantelpiece to be manufactured, shipped and stored disassembled, and assembled and installed relative to a fireplace conveniently and efficiently, without subjecting the mantelpiece to possible damage resulting previously from installation thereof, and without requiring finishing necessary previously as a consequence of such installation thereof.

Abstract: A survey monument of the type adapted to be driven into the ground includes at least first and second elongated cylindrical rod sections. The two sections are connected together by a threaded connector turned into threaded bores at the upper end of the first rod section and the lower end of the second rod section. The lower end of the first rod section is terminated by a conical penetrating point and a pair of flukes, formed by stamping them out of the first rod section, are located intermediate this point and the upper end of the first rod section. These flukes are oriented with respect to the axis of the rod sections to cause the sections to rotate about their axis in a direction to tighten the threaded connection of the two rod sections as the sections are driven into the ground.

Abstract: A corrugated panel adapted to be nailed to a roof between the base roof structure and the roof covering material so as to provide a multitude of ventilating air passages under the roof covering and thermally isolate the roof covering from the building.

Abstract: The invention relates to an annular three-dimensional structure usable in particular as reinforcement, said structure being formed of a regular criss-cross of elongated filiform elements distributed in four families, the elements of each family being disposed in parallel, regularly spaced apart sheets themselves constituted by elements extending substantially parallel to one another and regularly spaced apart. The elements in each sheet have a different orientation from that of the elements of the adjacent parallel sheet of another family, the elements of at least two families being incurved in opposite directions.

Abstract: Mountings for detachably connecting juxtaposed edges of at least two wall panels that radiate from the mounting are described wherein a jaw member is formed with two jaw surfaces that engage faces of the panels on one side of the panels close to the edges. The two jaw surfaces are spaced apart and an intermediate part either formed in one piece with the jaw member or fixed thereto, is located between the jaw surfaces and between the edges of the panels. The panels are maintained in contact with the jaw surfaces by two further such surfaces on a jaw device engaging faces on the opposite side of the panels. This jaw device is formed with a recess that fits onto the intermediate part and determines the extent of separation of the opposed jaw surfaces. At least one screw fixes the jaw device to the intermediate part. The location of the jaw surfaces determines the angle at which the panels are set relatively to one another.

Abstract: An improved assembly for forming a plurality of individual packages, containing articles, such as crackers or the like therein. The assembly includes a first roller member and a second roller member which is mounted in cooperative relationship with the first roller member. Each of the roller members includes cooperating members for simultaneously heat sealing, crimping and transversely severing a tubular strip containing the crackers in order to form the individual packages containing the crackers. The improvement includes a slitter member mounted on each of the sealing, crimping and severing members carried by the first roller member. The slitter members slit the film along the end portions.

Abstract: A trash bag filling device comprises a container having a base provided with air passages therethrough and an integral handle and further comprises a rigid frustoconical sidewall structure upstanding from the base. Alternatively, the air passages may be provided in the sidewall adjacent the base. Trash received within the device may be compressed therewithin, thereby forming a compacted plug of material having a tapered shape. The basal air passages prevent the creation of a vacuum between the trash and the base for ease in emptying the device into a trash bag. The tapered shape of the plug allows a bag in which the plug is received to be easily closed and tied without tearing.

Abstract: Conventional heads for screwing bottle closures on to bottles generally are applied to the closure cap, while rotating at full speed which causes tipping of and damage to the closure cap. The invention seeks to overcome this disadvantage by a sleeve portion at the bottom of the fitting head first being applied without any torque to the closure cap, the sleeve portion being force-lockingly engaged with the rotating head only when the head is moved further downwardly through the clutch-engagement distance. When a maximum torque, which can be adjusted by means of a stressing spring, has been reached, the clutch begins to slip and the sleeve portion stops. The sleeve portion is of low mass so that after disengagement of the clutch, no additional torque due to inertia is applied to the closure cap.

Abstract: A cartoner for inserting a product into an expanded carton having at least one open end and side flaps and an end panel with tuck flap thereon, and thereafter closing the open end, the cartoner accommodating a wide variety of carton shapes and sizes; a product infeed conveyor for such a cartoner including a product support plate extending laterally from either side of the cartoner and including a conveyor chain carrying product pushers pivotally mounted thereon, the product support plate being positioned from a bottom carton supporting rail a distance to receive the product pushers therethrough so that the product pushers both feed the product to the cartons and insert the product therein.

Abstract: A h ay conditioner comprised of a hay pick-up, a covered conveyor, a discharge chute and a steam generator in communication with a plurality of steam input nozzles, wherein the conditioned hay is continuously discharged from the chute as the vehicle progresses so as to traverse a windrow.

Abstract: The invention relates to a mechanism for swivelling and spring-mounting a machine sub-assembly, mounted to swivel about an axis of rotation, for example the cutting bench of a harvester thresher, which bench is supported on the movable frame of the machine by way of a lifting unit, consisting of a lifting cylinder and piston, and a spring element, a spring element of limited stroke being provided between the lifting unit and its support, and means, such as a hydraulic force transducer or the like, also being provided for the purpose of varying the spring force of the spring element.

Abstract: A lawn mower blade includes a leading flat portion, at each of its opposite ends, sharpened to define a cutting edge and a trailing vane is joined to and is angled upwardly in trailing relationship to each flat portion. In one embodiment, the vanes are each in the form of a lift wing and perforations or holes are located in the leading flat portion ahead of the lift wing and provide air pressure relief passages. In another embodiment the vanes include lift wings and bagging paddles joined to the lift wings and including second leading flat portions to which trailing fins are joined. The second leading flat portion is either recessed to form a space between outer end portions of the fin and flat portion or is perforated to provide air pressure relief passages.

Abstract: A tree trunk-type shaking apparatus, for vibrating a tree to effect harvesting of fruit or nuts, including a fixed trunk-engaging jaw and a pair of relatively movable, vibratable, trunk-engaging jaws. The three jaws are arranged so that they can surround a tree trunk and contact same over almost the entirety of the periphery thereof. Vibration of the two vibratable jaws while in contact with the tree trunk will shake the tree trunk and thereby dislodge the ripe fruits or nuts therefrom.

Abstract: An agricultural implement for carding, combing and/or teasing crop lying on the ground by receiving same from the ground by comb-like structures and then engaging and conveying the crop through the implement by a rotating drum with tines extending therefrom or rotating discs which have substantially vertical axes, the crop being restrained as it is engaged to impart somewhat of a combing action. In embodiments having a rotary drum with tines which rotates about a horizontal axis, further rotating tines in the path of the conveyed crop tend to comb and disentangle the crop further. The latter such tines may be close to or actually within the cylinder of rotation traced by tines extending from the drum although direct contact between the two sets of rotating tines is avoided.

Abstract: Method and apparatus for introducing a first strand into a continuously moving second strand are provided by positioning the first strand in spaced relation along the length of the continuously advancing second strand, and laterally moving the first strand to engage the continuously moving second strand such that the first strand is continuously advanced with the second strand.

Abstract: The spool carrier of a double twist textile twister is held in space by connecting it to two rotatable assemblies which rotate respectively about a centered axis and an oblique axis. The obliquely oriented assembly is connected to the spool carrier by means of bearings in a bearing housing, the exterior surface of which has two oppositely facing, transversely oriented convex cylindrical surfaces. A base on the spool carrier has depending portions with planar interior faces which engage the convex cylindrical surfaces with a minimum of play.

Abstract: An open-end spinning frame comprises a fiber feeding mechanism, constructed with a feed foller and a presser urged towards the feed roller, a combing roller having a metallic wire wound therearound, a rotor for spinning the fibers delivered from the combing roller, and a pair of flat side plates. The feeding mechanism is provided with a passage for flowing air current, which passage is formed by chamfering the side of the presser, by shortening the width of the feed roller or by forming only one projection at the front end of the presser. Through the air current flowing passage, one or more flow-in air currents flow so that the accumulation of fibers does not occur easily.

Abstract: Apparatus is disclosed herein which detects breaks in spinning yarns in ring spinning frames or the like and in particular senses vibrations inherent to a yarn guide disposed on a bobbin when the yarn guide comes into contact with the spinning yarns. The apparatus achieves quick inspection of whether breaks occur with the spinning yarns by the presence and absence of the vibrations, thereby monitoring joints in the spinning yarns and the operating state of the spinning machine.

Abstract: A device for preventing a spindle of an open-end spinning frame, which device comprises a rotatable spindle having a rotor attached at one end thereof and a shaft, formed at the other end thereof, to be pressed by a running belt, a bearing casing for rotatably supporting the spindle, a holder for holding the bearing casing via a pair of resiliently yieldable members. At least one of the resiliently yieldable members are detachably mounted on a sleeve detachably secured to the bearing casing. A labyrinth seal is formed between the rotor and the sleeve.

Abstract: A device for controlling the bobbin drive of a flyer roving frame which has a bobbin, a flyer and drive roll thereon that are utilized for building a bobbin with yarn. A drive for the frame incorporating a differential gear and controls are provided for adjusting the driving speed of the flyer and drive roll stepwise to different rotational speed stages during the building of the bobbin. An additional speed adjusting device is provided for automatically varying the driving speed of the bobbin within each rotational speed stage. A switching device is provided for automatically switching the rotational speed stages.

Abstract: A process for flue gas desulfurization or nitrogen oxide removal in a fluid using a magnetically stabilized fluid cross-flow contactor of the panel or radial reactor type wherein ferromagnetic bed solids are structured or stabilized by the action of a magnetic field.

Abstract: This invention relates to combustion units in which combustible fluids are fed to a combustion chamber and burnt, and in which the resulting combustion gases are used to drive a power output.

Abstract: An air-to-air heat exchanger is provided for a gas turbofan engine to significantly reduce the quantity of cooling air that is presently needed to effectively cool the hot turbine parts. Typically, the turbine is internally cooled with air bled from the compressor which, though cooler than the turbine, has been heated due to the work done on it by the compressor. In accordance with the present invention, the heat exchanger is located internally of the bypass duct to place in heat exchange relationship a captured portion of the relatively cool bypass flow and this warmer compressor bleed air, thereby cooling the turbine coolant and significantly reducing the amount of such coolant required. This results in a decrease in engine specific fuel consumption.

Abstract: A pair of turbofan engines are cross connected such that during normal-mode operation horsepower can be shared by the respective cores, and when one engine core becomes inoperative the fan of that engine can be driven by the turbine of the operative engine to thereby maintain a substantial thrust output. In order to balance the respective thrust outputs, variable inlet guide vanes are controlled to decrease the fan mass flow in the operative engine and increase the fan mass flow in the inoperative engine. The variable inlet guide vanes are so constructed as to only partially span the fan duct so as to not appreciably affect the airflow to the core when the inlet guide vane angle setting is altered to allow the core to thereby retain a high level of supercharging during this operational period of maximum power demand.