Abstract: Apparatus for applying printed matter to the rear sides of webs of photographic paper in a copying machine has an upright frame for a vertically reciprocable housing which is lifted by a first rotary electromagnet and retained in raised position and thereupon released by a second rotary electromagnet. The housing is movable up and down with several modules each of which contains a wheel having at its periphery a set of symbols. Selected symbols can be moved to positions at the lowermost points of the respective wheels by remotely controlled electromagnets so that such selected symbols face a ribbon which is located above the rear side of a web of photographic paper. The modules are movable downwardly in the housing against the opposition of separate springs and the frame carries a projection which intercepts the housing, after the housing is released by the second electromagnet and while the housing descends by gravity, before the selected symbols can press the ribbon against the web of photographic paper.

Abstract: Apparatus for handling a multi-layer tape in a postage meter printing machine wherein a portion of the tape is printed with indicia and advanced to the operator and a protective backing portion is wound up on a motor-driven reel after being separated from the printed portion. Advancement of the backing portion of the tape by the reel advances the separated printed portion to the operator. Prior to being wound on the reel, the backing portion of the tape is guided around two sets of rollers defining three points of tangency with a star wheel having radial projections in registration with slots formed in the edge of the backing portion of the tape. Advancement of the backing portion of the tape rotates the star wheel, which includes a plurality of pins which cooperate with a switch to deactuate the motor of the wind-up reel after the star wheel has rotated through a predetermined arc.

Abstract: Printing apparatus particularly suited to a cash register includes a hammer arranged to move printing paper into engagement with type wheels located on the other side of the paper. A cam and linkage move the hammer into and out of contact with the paper. Strong springs are provided to rapidly accelerate the hammer toward the paper through an engaging plate. The engaging plate is stopped before the hammer contacts the paper, and the hammer strikes the paper due to its inertia. The hammer rebounds off the paper and is caught and held by the linkage in the rebound position between the paper and the engaging plate to prevent double printing.

Abstract: A ballistic print hammer assembly which includes a pivotally mounted print hammer driven by an electromagnetic actuator, characterized by low cost and ease of manufacture, high velocity and short dwell time. A rigid pivot upon which the hammer is mounted is simply secured to one side of a frame member. One end of the hammer is disposed in a slot of the armature of the electromagnetic actuator. The stator of the actuator is arranged to be inserted (by means of screw threads) from the other side of the frame member through an aperture so that the armature fits within the actuator stator cavity. An impression control spring is further disposed in a central cavity of the armature to continually produce a biasing force on the hammer which in the free-flight condition of the hammer is a decelerating force.

Abstract: A document imprinter, especially for labels, tickets, tags, and the like, having a rotary printing unit and an inking roller, with novel means for adjusting the position of the inking roller relative to the printing unit, said adjusting means including locating means in the form of a plurality of flat surfaces each located at a different distance from the roller's axis of rotation.

Abstract: A printing head for precisely printing bar code characters, which printing head is mounted on a portable label printing machine or the like and comprises: a pair of frame plates; a plurality of bar code type rings carrying a series of bar code types therein; carriers for indicia to indicate the type face on a type ring then at the print position; a type ring selector shaft movable to each type ring for selecting a particular type on each bar code type ring; the distance between the frame plates is slightly larger than the total thickness of the type rings; a pressing means to press the type rings together in the axial direction is positioned between one frame plate and the type rings; the pressing means releases the type rings when they are to be rotated in a type selection step; in one embodiment, type face arranging bars are passed through the type rings for attaining uniform flatness of type face; in an embodiment there are separate type rings and indicia carrying rings and there is an interlocking mechani

Abstract: A master cylinder for an offset or the like printing press includes an arcuate master receiving surface extension section mounted on the cylinder for movement between an inoperative position into the interior of the cylinder and an operative position adjacent the tail end of the stationary master receiving surface of the cylinder. When in the operative position the extension section increases the length of the master sheet receiving surface of the cylinder to accommodate longer than "standard" length master sheets. The extension section is mounted for sliding movement on arcuate guides formed by the movement of a predetermined radius extending from a point off center with respect to the central axis of the cylinder. A locking assembly is included to secure the section in either position. A tail clamp for longer masters is provided on the free end of the extension section.

Abstract: A room air conditioning unit has an air flow guide mechanism which provides an oscillating-type of air sweep louvered grill for the unit discharge duct. A motor with suitable gear reduction supplies power to a double acting barrel cam having a curved surface matching the radius of the center of rotation of the grill assembly to a point of contact of a follower fixed to the air conditioner unit front cabinet housing. The cam has a groove receiving the follower to transmit the desired amount of movement to rock the guide mechanism about a horizontal axis to provide a vertical air sweep. An eccentric pin on the cam drives a vertical louvered actuating rack to generate horizontal air sweep. The cam follower may be disengaged from the cam groove when vertical air sweep action is not desired.

Abstract: An air conditioning terminal for supplying conditioned air into a space includes a pair of assemblies for regulating the quantity of air discharged from the terminal. A restraining member is connected to the air regulating assemblies and to a non-movable portion of the terminal to prevent relative movement between the air regulating assemblies and the non-movable portion.

Abstract: A sheet-transfer arrangement is arranged between two printing stations each having a printing roller. The transfer arrangement has a transfer roller provided with a suction gripper system which lifts the trailing edge portion of a sheet travelling on the first printing roller off the surface of the latter. A drive is provided which temporarily advances the suction gripper system relative to the transfer roller circumferentially of the same and in the direction of rotation thereof, in order to cause the trailing edge region of the sheet to bulge away from the first printing roller. A mechanical gripper system is also provided on the transfer roller which receives the trailing edge portion of the sheet from the suction gripper system, pulls the sheet off the first printing roller, turns it and presents it to the second printing roller during the continued rotation of the transfer roller.

Abstract: A dry duplicating method comprising the steps of pressure-imaging a continuous master web with images capable of exuding liquid ink under the effects of contact pressure such as roller pressure and collecting the imaged master web on a roll for duplicating use. The master web is such that at least one surface is receptive to the pressure-applied images but neither surface is capable of absorbing the liquid ink to any substantial degree. The imaged web is duplicated by continuously bringing it into surface contact with an ink-absorbent copy web while pressure is applied to exude the liquid ink from the master images onto the copy web to form a duplicate copy, after which the web is continuously rolled up on another roller for reuse.

Abstract: An apparatus for the simultaneous placement of a plurality of objects on a substantially horizontal surface is disclosed, said apparatus comprising a platform to position the objects, release mechanisms to releasably attach the objects to the platform and a system for simultaneous release of the objects.

Abstract: The projectile fuze of this invention comprises a housing having a cavity which is substantially filled with a liquid. A body having an average specific gravity less than that of the fluid is accommodated in the cavity and is movable forwardly by buoyant forces which arise during projectile launch.

Abstract: A tie replacing system is adapted to replace worn ties in a railroad track of the type including longitudinally extending metal rails supported on wooden cross ties by metal tie plates and a gravel ballast roadbed supporting and at least partially enclosing the ties. The system includes a tie biter-tie plate holder assembly comprising a pair of opposed jaws each including a plurality of teeth positioned at spaced intervals across the entire width of a worn tie. Upon closure of the jaws, the teeth function to remove any portion of the worn tie which projects above the under surfaces of the tie plates. The jaws also include tie plate gripping members which engage the tie plates corresponding to the worn tie and thereby retain the tie plates in engagement with the under surfaces of the rails.

Abstract: A railway passenger compartment includes a seating arrangement which is convertible to elongated berths by moving oppositely disposed seats toward each other, the same being hingedly connected to seat backs which are also moved into longitudinal alignment forming berths. Stationary seat supports are provided with tracks which slidingly support cantilevered arms connected to the seats and provide basic supports for the seats when in the berth position.

Abstract: A shelf assembly which is assembleable without extraneous fasteners and which may be shipped flat and ready for attachment to a pair of spaced standards. The assembly comprises an expansive shelf of formed sheet metal having an upper shelf surface portion and a lower portion which provides groups of spaced slots opening into hollows within the shelf. Shelf support brackets, each having an expansive main body portion, hooks for supporting the assembly on a standard and a pair of mounting ears integral with the bracket extend laterally from the upper regions of the bracket main body portion. The mounting ears are seated within the hollows of a corresponding group of slots. The ears on each bracket have projections by which the shelf and bracket are interconnected. At least one projection is a protuberance, the combined width of the ear and the protuberance being greater than the width of the slot portion through which that ear entered. One ear has a hook-like projection.

Abstract: A furnace feed grate of an incinerator comprises transverse rows of grate blocks, the blocks of alternate rows being movable to feed refuse along the grate. Clamping devices at the underside of the grate resiliently urge together the blocks of the respective rows. At the lateral edges of the grate, sealing plates are resiliently urged into sealing contact with the ends of the rows independently of the action of the clamping devices. The grate, the clamping devices and the sealing plates can be removed from the incinerator as a single unit.

Abstract: A frame having a baling chamber formed therein and a feed hopper member pivotally mounted adjacent the chamber for introducing a car body or similar article partially into the baling chamber. A cover member is pivotally mounted adjacent the other side of the baling chamber and has a front edge constructed as a cutting edge. The cover member when pivoted to its open position permits the introduction of the car body into the baling chamber by tilting the feed hopper member. The cover member, when pivoted to its closed position after the car body is partially introduced into the baling chamber, will partially crush and bend the car at approximately the middle portion thereof so that substantially one-half of the car body will be inside the baling chamber and the other half will protrude out of the baling chamber through the space adjacent the front edge of the cover member.

Abstract: A soil cultivating implement or rotary harrow has a row of soil-working members rotatably mounted on upwardly extending shafts. Driving means rotates the shafts and tools, preferably tines, are moved through the soil to work same. Fluid material from a container on a supporting structure is passed in the worked soil through injectors located adjacent the soil-working members. The injectors can be tubes arranged on a support in staggered formation across the working width of the implement, or each soil-working implement can comprise one or more injectors. The injectors extend into the ground and conduct fluid through ducts and passages from the container into the ground. A roller at the rear of the injectors smooths the worked soil.

Abstract: A tufting machine having corrugated yarn tension rolls for pulling out the slack from the yarn. The tension rolls are mounted in pairs and supported at their ends in bearing brackets. The pair of brackets at each end of the roll pair are hinged together so that one may be pivoted relative to the other. A quick release clamping member preferably having an expandable diameter pin and a cam handle connect each pair of brackets together and act to rapidly disconnect them upon turning of the handle. An adjustable screw is provided to adjust the separation between the rolls.

Abstract: A feed regulator clamping device for a sewing machine, operative during the feed of a work material to insure retention of a selected feed against feed back of forces from the feed dogs. The device includes a clamping plate supported by a feed shaft to extend between the feed regulator and a stationary object such as a boss of the sewing machine frame. A face cam affixed to the feed shaft, which also supports feed cams, engages with the clamping plate during the feed of the work material thereby to cant the clamping plate and create a frictional connection between the feed regulator and the sewing machine frame.

Abstract: A bobbin carrier of a sewing machine is suspended in a surrounding plate solely by several radial pins bridging the space between the carrier and the plate and which can be successively temporarily retracted from the space by a rotating cam. A hook turning with the cam takes up thread from a needle and drives it about the bobbin carrier, in synchronization with retraction of the pins, for the formation of a stitch with a thread fed from a bobbin in the carrier.

Abstract: A sewing machine presser foot assembly adapted for the dual function of setting a concealed zipper and closing the seam below the zipper. The presser foot assembly comprises a zipper foot, and a cording foot bar pivotally mounted for selective movement between a raised inoperative position alongside the zipper foot and a lowered operative position beneath the zipper foot. In a preferred embodiment of the invention, means are provided for maintaining the cording foot bar in either the raised or the lowered position.

Abstract: An improved thread-tensioning mechanism for the stop motion means of a multi-needle machine of a well known type wherein each needle thread, in extending from its supply spool to its needle, normally travels through a thread-tensioning section at a speed and tension which varies in proportion to its rate of variable usage within a given operating or usage range. Its tension variations are sensed by a sag sensor that shuts down the machine when the tension falls below said given range. In our improved thread-tensioning mechanism, a group of independently rotatable idler wheels is provided, one for each needle thread of a corresponding group of individual threads. The periphery of each idler wheel gravitationally engages and presses its needle thread against the periphery of a rotating shaft common to all wheels. Through this engagement, each wheel is rotated by and at the varying speed of its thread.

Abstract: A spin flanging machine for flanging the open end of container bodies, such as metal cans. The machine includes a drive shaft mounted for rotation on a supporting structure and a rotary turret is secured to the shaft and carries a series of flanging heads. Each head is provided with a plurality of flanging rollers which are adapted to engage the open end of the can. As the turret rotates, each head is rotated about its axis by the driving engagement of a pinion connected to the head shaft with a large fixed gear mounted on the supporting structure. The flanging heads are moved in a reciprocating manner towards and away from the can by a cam mechanism including a cam follower that is secured to the end of each head and engages a cam groove on the fixed supporting structure.

Abstract: Forming of wire contacting jaws for a channel type electrical terminal of conductive sheet metal is disclosed, without diminishing the length of the terminal, by first obtaining a stretching of the conductive metal into a preliminary displaced configuration, then reverse forming and coining the metal into a jaw formation deeper and narrower than the first configuration, and then substantially removing the reverse curvature, with added coining and stretching of the metal, into a final jaw formation which is deeper and narrower than that obtained in the second step, without rupture of the metal. Slight reverse curvature is retained adjacent the juncture of the sides of the jaw with the body of the terminal.

Abstract: A can lid includes a pushdown gate formed in a panel portion below a narrow, underfolded rim at the opening in the lid. The outline of the gate is a disruptible score cut in the panel portion underneath the rim. This structure is essentially the same as that disclosed in the Klein-Harper U.S. Pat. No. 3,334,775. However, the score cut defining the outline of the gate is at the upper surface of the panel portion instead of being at the undersurface. A method of drawing and folding the lid material permits the score line to be cut before the underfolded rim is formed over the score cut.

Abstract: A pontoon system for supporting watercraft on a body of water having a submersible structure comprised of pontoons into which air is injected expelling the water therefrom to provide lift for the system, and a frame which maintains the pontoons in fixed spaced relationship. The frame includes support pads which extend upwardly therefrom and which contact the hull and keel of the watercraft for support purposes. The pontoons are divided into chambers by bulkheads which allow the water to be forced from the front portion of the pontoons first. Thus, the front of the watercraft is lifted initially which stabilizes the watercraft and the pontoon system before the usually heavier aft portion of the watercraft is lifted; this reduces the possibility that the watercraft will become unstable during the lifting process. Air may be released from said pontoons for lowering the pontoon system into the water. A safety system is provided to lower the system into the water if a leak develops.

Abstract: At least one ship building berth space is provided on the ground adjacent to a dock facing open water. When a ship is built in the berth space, temporary partitioning walls are set up in a manner surrounding the berth space and the dock, and water is supplied into the area surrounded by the walls to cause the ship to float off the floor of the berth space, whereby the ship can be floatingly moved into the dock and then can be launched into the open water.

Abstract: A lateral thrust control unit for watercrafts having a pair of tunnels which are directed transversely to the longitudinal axis thereof. Each of the tunnels extend from one side of the watercraft to the oppositely positioned side of the watercraft and have at least one drivable propeller therein. At least one pressure-compensating channel is provided near the tunnels and connects at least one of the zones of differing pressure fields created on the sidewalls of the watercraft as the watercraft moves simultaneously longitudinally and laterally to the pressure field of different potential to equalize the pressure differential therebetween and to reduce the resistance to the lateral movement. The pressure-compensating channels do not have any propulsion devices therein.

Abstract: A golf flag assembly is provided for use in conjunction with a flagpole and comprises a flag and means for attaching the flag to the pole, said means further comprising a pair of facing panel members adapted to receive one edge of the flag therebetween and means for securing the panel members together so that the edge of the flag is entrapped between the panel members. At least one tubular cylindrical member is secured along one edge of both of the panel members so that the panel members extend radially outward from the outer periphery of the cylindrical member. The tubular cylindrical member is constructed of resilient material and is adapted to receive the flagpole therethrough so that the cylindrical member grasps the flagpole to secure the golf flag assembly to the flagpole.

Abstract: A method of uniformly exposing a plurality of semiconductor slices to a reacting gas flow, where the slices are arranged in a spaced stack within a tube and the gas is directed between said slices by a longitudinally positioned baffle wall having apertures the cross-section of which increase in the direction of gas flow.

Abstract: An apparatus for treatment of a semiconductor wafer comprises a sealable treating vessel which forms a sealed treating chamber in the vessel when sealed. A gas feeder feeds a compressed gas to the treating chamber. A heating device is disposed out of the treating chamber. The semiconductor wafer in the treating chamber is treated with the compressed gas while it is heated by the heating device.

Abstract: A powder feeder pick-up tube having a central powder delivery tube receiving powder entrained in a propellant gas, an outer concentric tube delivering propellant gas to the powder delivery tube and evenly entraining powder in the gas as the powder enters the powder delivery tube. The propellant delivery tube has an inwardly curving end that forms a gap with the open end of the powder delivery tube, and the geometry of the curving end and the size of the gap are factors determining the operational characteristics of the pick-up tube. Variations on the basic pick-up tube include a concentric fluidizing tube surrounding the propellent delivery tube and locally fluidizing powder around the opening of the powder pick-up tube. The shape of the fluidizing orifice at the outlet of the fluidizing tube may be modified to alter its fluidizing characteristics. The tube is immersed in a hopper of powder when operating and the entire hopper may be fluidized and vibrated to assist the operation of the pick-up tube.

Abstract: A machine for impregnating a fabric of woven fibers with a viscous liquid. The machine comprises a chamber to contain the medication, first and second slots in opposite sidewalls of the chamber with overlying, first and second, resilient seals carried on the walls of the chamber and bearing fabric-receiving slits. The machine is provided with a supply roll of a continuous band of fabric, e.g., medical gauze, and a motorized take-up spindle whereby a continuous strip of gauze can be passed through the slits of the seals and the chamber, and be impregnated with the viscous ointment within the chamber. Preferably, the chamber carries a platform plate at the level of the slits and a plurality of apertures are provided in the platform plate. The band of fabric or gauze is directed through the chamber and over the surface of the platform plate so that during its passage through the chamber the viscous material within the chamber will be extruded into the open, porous weave of the fabric or gauze.

Abstract: For use in an electrophotographic copy machine utilizing magnetic brush roll development, an improved hollow magnetic roll made of non-magnetic material containing axially located grooves along the exterior periphery. The grooves are spaced in a range from 15-25 times the diameter of the permeable carrier beads used in the development process and the lands between grooves are polished to a high degree, e.g., 25 .mu. inches. The depth of the grooves is to a minimum of 1-2 times bead diameter while the groove width is to a minimum of 2-3 times bead diameter.

Abstract: A load distributing and interconnecting slat floor wherein each slat has an interlocking connection with adjacent slats at several locations along the length of the slats to distribute loads imposed on any one slat to the adjacent slats and a method utilizing separable forms for manufacturing the load distributing and interconnecting slat floor.

Abstract: A retractable leash for dogs and other pets. A casing is fastened to a dog collar and remains connected thereto during periods when the animal is not being walked. A rotatable reel is supported in the casing and a flexible leash is wound about the reel. One end of the leash is externally accessible of the casing by connection to a handle. A spring engages both the reel and the casing and tightly coils in response to the unwinding of the leash. A removable cover on one side of the casing facilitates servicing, the cover being locked closed by the attachment to the animal's collar.

Abstract: A method of and an apparatus for feeding hydrogen fuel derived from a metal hydride to an internal combustion engine includes two tanks, one for containing fresh hydride and the other for spent hydride and a low capacity reactor through which the fresh hydride is pumped from the one tank to the other. Heat applied to the small quantity of hydride in the reactor generates hydrogen which is extracted and retained in a storage chamber for feeding to an engine, with the spent hydride being pumped away and fresh hydride being pumped into the reactor to maintain a continuous source of supply of hydrogen therein during operation of the system. Quick starts and stops are made possible and great flexibility of operation and control are obtained by circulation of the hydride through the small reactor for heating.

Abstract: A rotary internal combustion engine that includes a housing that defines an elliptical cavity in which a rotor is disposed. The rotor slidably supports a number of circumferentially spaced, radially disposed blades, with each pair of blades defining a chamber therebetween. The rotor is so rotatably supported in the cavity that the ratio of the intake chamber volume may be adjusted so that there is a minimum residual pressure on exhaust gases and the efficiency of the engine is increased as a result thereof.

Abstract: A water injection system for internal combustion engines comprises adapter means located at the spark plug openings and including water injection nozzles and ignition generating electrodes projecting into the combustion chambers. Pressure of the ignited fuel mixture in the combustion chambers drives a water injection piston of an inexpensive water injector attached to the adapter means.

Abstract: An internal combustion engine is provided with means for creating a vortical stratified charge in a preferably axisymmetric combustion chamber which may be conical in shape. Excessive mixing of rich and lean mixtures, which make up the stratified charge, is avoided by first admitting a homogeneous lean mixture on the intake stroke through a swirl port to develop a vortical motion and subsequently admitting a rich air-fuel mixture toward the end of the intake stroke directed so as to form a swirling pattern of rich mixture around the spark plug. Means are provided for directing and timing the admission of lean and rich mixtures.

Abstract: Piston for an internal combustion engine having an upper face which forms a part of an expandable combustion chamber. The piston is provided with a cavity or deep depression formed in the upper face to promote fuel-air mixing as well as to improve the combustion process within said combustion chamber. The cavity is formed within a cup-like insert member, so positioned within the piston body that the cup-like insert is substantially spaced or insulated from the piston body, thereby avoiding or minimizing heat loss to the piston walls.

Abstract: A diesel engine cylinder head is provided with air gap inserts for insulating the combustion and exhaust gas exposed surfaces from the coolant jacket exposed walls so as to limit heat transfer to the engine coolant. Various insert elements are disclosed which may be used independently or in combination. Installation of a prefabricated multiple port exhaust insert which permits improved efficiency of gas flow is provided for by utilizing a two-piece construction for the main housing of the cylinder head.

Abstract: A multicylinder, stratified charge, internal combustion engine in which the main combustion chamber of each cylinder is coupled, through a conduit with controllable flow cross section, to the precombustion chamber of the cylinder which precedes it in the firing order of the engine. A flutter valve controls the flow of gases into each precombustion chamber. Part of the fuel injected just ahead of the main engine inlet valve in the induction tube of each cylinder is thereby drawn off and delivered to the precombustion chamber of the preceding cylinder in the firing order of the engine.

Abstract: A spark ignition system for a vehicle has a memory device receiving inputs representing engine parameters and producing an output representing the crankshaft position at which a spark is to be produced. This output is compared with a signal representing the actual crankshaft position starting from a datum position, and a common transducer is used to provide the required engine speed signal and crankshaft position signal.

Abstract: An exhaust gas recirculation system for a vehicle internal combustion engine recirculates exhaust gases to the intake manifold of the engine to reduce smog-producing exhaust emission. Exhaust gases are recirculated into the intake manifold only during certain vehicle operating conditions. An injection means responsive to application of intake manifold vacuum governs injection of exhaust gases into the intake manifold. A vacuum control means allows application of intake manifold vacuum to the injection means only when activated. A control means responsive to vehicle operating parameters selectively activates the vacuum control means. With application of vacuum, the injection means allows recirculation of exhaust gases into the intake manifold.

Abstract: The disclosure describes the improvement to a carburation system for an internal combustion motor which operates with a mixture of motor fuel vapor and air. The system comprises a carburetor, a heat exchanger and an admission block. The main object of the present invention is to decrease in a positive manner the losses of power of the explosion in the motor-cylinder, which are caused by a premature expansion of the air during its passage in the heat exchange compartments. The invention is characterized by the fact that a portion only of the air which is required for the explosion will pass in the heat exchange compartment with the motor fuel which will be transformed into vapor under the effect of heat. The other part of the air will go through the heat exchanger (by an independent air duct) will arrive directly in the system of admission of the motor cylinder.

Abstract: A fuel injection system for a mixture compressing, externally ignited, internal combustion engines employing continuous injection into a suction tube includes a control pressure circuit provided with a throttle. The metering valve is controllably associated with the throttle so that the pressure difference at the metering valve can be changed by changing the pressure difference at the throttle.

Abstract: A Fuel System for an engine includes an actuator for controlling the output of a pump and a pair of d.c. supply lines the voltage across which is determined by a voltage regulator. A series circuit including a resistor, a relay coil and a transistor is connected across the supply lines and first means is provided for turning transistor off if the current flow through the actuator exceeds a predetermined value. Second means including a resistor is provided to maintain transistor de-energised when it has been turned off to prevent further operation of the actuator. In addition switch means is provided to short circuit the resistor if the potential between the supply lines falls below a second predetermined value.