Abstract: The punch stripper of the invention prevents dimpling distortion of thin workpieces and permits punching operations close to the edge of a workpiece, or close to a surface discontinuity such as a rib, while avoiding damage to the stripper. The stripper includes a resilient stripper cap profiled to narrow in the direction of the workpiece with a spherical end surface being preferred.

Abstract: An automatic slitter scorer apparatus is disclosed for slitting and scoring a corrugated paperboard web. The apparatus includes an upper pair of slitter shafts and an upper pair of scorer shafts, as well as a lower pair of slitter shafts and a lower pair of scorer shafts thereby defining two web paths through the apparatus. The web paths are used alternately. All of said shafts are selectively rotated by means of a single motor at one end of the apparatus. A set of trim chutes is provided for each pair of slitter shafts and is located downstream therefrom.

Abstract: A foil perforating apparatus of the type wherein perforation locations on a large master pattern are transferred via a reduced motion system, such as a pantograph, to corresponding locations on a transparency foil to be punched. A foil punching device is carried on the reduced motion system. Accuracy of punching is achieved by a clamping means on the reduced motion system which is electrically interlocked with the foil punch to achieve clamping prior to punching.

Abstract: A straight line shearing mechanism which includes a unique pneumatic control system to cause the operation of the shears. One feature involves the cushioning of the piston member of the pneumatic cylinder assembly on the return stroke. Another feature is the provision of an automatic retract to open the shears in the event that the shear blades do not complete their cutting stroke. Also, one blade of a set of shear blades may tilt in the event of excess tension between the blades. Additionally, one shear blade is pivotally adjustable about a pin member having an axis extending in the direction of travel of the blades. Further, the drop guides are horizontally adjustable relative to its associated shear blade in the direction of travel of the shear blade and also adjustable about a vertical axis.

Abstract: A chain saw is movably mounted on a frame for enabling the chain saw blade to move in a substantially straight-line path relative to the frame. The frame includes a bed for supporting a length of wood within the straight-line path of the saw blade. The saw blade is biased toward one side of the length of wood and a foot treadle is connected to the saw for overcoming the bias and moving the saw blade along the straight-line path to the other side of the length of wood.

Abstract: A kerfless slitter, capable of cutting various materials without generating chips or sawdust. The slitter includes a circular blade having a plurality of teeth spaced about its outer periphery and which contains a knife-edge centered along the mid plane of the blade in regard to its thickness. In practice, the blade is rotated at a peripheral speed that is equal to the linear speed of the work acted upon whereby each tooth is advanced along a cycloidal path of travel in reference to the work. Each tooth is arranged to enter the work ahead of the cutting line established by the teeth that have previously penetrated the work so that the cut is increased in length and in depth by means of a series of short slits.

Abstract: There are provided a plurality of key switches which respectively designate the pitches of the musical tones to be generated, a frequency number generator which generates frequency numbers corresponding to the respective key switches, a harmonic order number generator which generates harmonic order numbers representing the orders of the respective harmonic components, an arithmetic processor for producing a multiplication product of the frequency number and the harmonic order number, an accumulator which repeatedly accumulates the output of the arithmetic processor of each harmonic order at a predetermined speed, and a sinusoid table including a memory device storing the amplitude values at respective sampling points of a sinusoidal wave for generating the amplitude values of the sinusoidal wave corresponding to respective harmonic components thereby producing the harmonic components.

Abstract: The circuit enables the selection of the upper or the lower tone of an electronic organ chord with regard to a switching signal. In response to said switching signal each tone frequency signal handled is either fed to the anode or the cathode of a switch component of a plurality of switch components connected in series whereas the switch components of the tone frequency signal not handled are switched on.

Abstract: In an electronic organ of the time-sharing type, a single clock source drives a number of variable divisor frequency dividers which are assigned different divisor values to produce different musical tones at different times. In order to prevent phase synchronism between two simultaneously operating dividers, and thus achieve a rolling phase relationship which is perceived as a chorus effect, divisor values are employed for the two frequency dividers which are not in a whole number relationship. If the two dividers are generating octavely related notes, the divisors used have a ratio not quite equal to the nominal 2:1 value which musical theory requires. Moreover, the exact value of the ratio varies from note to note within each octave so that the rate of phase roll is not monotonously the same for all notes. Alternatively, if the two dividers are both generating the same note, then the divisors used have a ratio which is not quite equal to the 1:1 value which musical theory requires.

Abstract: Disclosed is a musical instrument and method for generating musical sound. Digital circuits produce a sequence of numbers which are converted to analog electrical signals which are periodically sampled to drive a conventional speaker. The digital circuits operate in accordance with a method of forming each sample by evaluation of a closed-form expression including a first function of time, either periodic or non-periodic, transformed by a second function of time where the second function is non-linear, non-sinusoidal and differs from the first function. The frequency spectra of the resulting musical sound can be finite and the amplitudes of frequency components do not have unwanted limitations.

Abstract: An arrangement for presetting musical tone effects in an electronic musical instrument in which a first system is provided with a plurality of tablet-shaped switches which are connected through respective memory elements in a memory circuit to respective control electrodes of a plurality of gates for selection of musical tone effects. A second system is also provided with tablet-shaped switches which are connected to control electrodes of gates for selection of musical tone effects. Either one of the first or second system is selected, and the memory circuit has a write switch arranged so that after completion of the writing of output signals of respective tablet switches by operation of the write switch, the memories remain unchanged by the writing, even by operation of respective tablet-shaped switches. The memory elements in the memory circuit of the first system are in a plurality of lines in conjunction with a plurality of line selection switches for selecting the respective lines of the memory elements.

Abstract: A musical keyboard instrument is disclosed for recording and storing a musical performance and then automatically playing back the performance. As is conventional, a keyboard having a plurality of keys is provided, along with musical tone generators that are associated with the keys. In accordance with the disclosed invention, means are provided for sensing, at a sensing time, those of the keys which are activated. A sequence of frames are generated, each frame including digital information representative of the keys that are activated at a given sensing time. The duration of each frame is a function of the relative locations of the keys activated at a given sensing time, and is therefore a duration which can vary from frame to frame. Each sensing time is determined by the previously completed frame, i.e., when a frame is complete, the statuses of the keys are again sensed so that the next frame can be generated. The sequences of frames are stored on magnetic tape.

Abstract: An igniter assembly for use in liquid propellant guns comprises an outer tubular conductor and an inner conductor spaced apart by a volume of tightly packed, irregular granules of an insulating material, such as a mineral powder. The outer conductor is supported in a longitudinal bore of a gun bolt.

Abstract: An apparatus for positioning the target marker in a toss-bombing display to allow toss-bombing when the wings of the bombing aircraft are not level.

Abstract: A hydraulic control circuit especially for use with multi-function hydraulic devices, such as for industrial lift truck attachments, in which a combination of valve means are adapted to operate two or more hydraulic systems, the valve system being designed such that a minimum number of hydraulic conduits are required to connect the main hydraulic system to the hydraulic devices, as from a lift truck to an attachment supporting carriage on a lift truck upright, and no electric lines are required to be connected to switching devices between the hydraulic devices, such as to solenoid operated valves.

Abstract: A hydraulic control system particularly suitable for controlling the acceleration and velocity of a load such as the plunger of die casting equipment is described. The load is controlled by a hydraulic ram which in turn is controlled by a main valve of the kind in which the rate of flow of fluid to the load is directly proportional to the rate of flow of pilot fluid thereto. Pilot fluid flows through an auxiliary valve and a restrictor. The restrictor is adjusted to determine the maximum rate of flow and the rate at which the auxiliary valve opens is adjusted to determine the rate of change of flow.

Abstract: The conventional slotted valve plate of an axial piston pump-motor is replaced by an integral or separate barrel extension having a charge-discharge passageway leading to each cylinder. The passageways lead axially from the cylinders and then turn generally radially inward to open at ports in a circular-cylindrical bore in the extension which is coaxial with the barrel and main shaft axis. The end of a fixed pintle shaft extends into the bore. The pintle shaft has fluid supply and return passages that open to charge and discharge areas within the bore which, in turn, communicate through ports in the shaft with the ports in the barrel. The charge and discharge areas are divided by a diametrical wall, and bridges at the edges of the wall and between the pintle shaft ports serve as valves which sequentially close each barrel port and thereby separate the charge and discharge stages of operation of each cylinder.

Abstract: An adjusting drive operated by a pressure medium with a spring-loaded roller diaphragm secured to plates and displaceable within a housing by the pressure medium; the roller diaphragm actuates an adjusting member that is securely connected with a plate and extends out of the housing; in addition to its end positions, the adjusting member is also able to assume at least one intermediate position; the plates are thereby connected with each other by the roller diaphragm while a plate not directly connected with the adjusting member sealingly rests on a ring-shaped abutment projecting out of the inner wall of the housing in the intermediate position of the adjusting member.

Abstract: A method and apparatus for manufacturing articles made of paper, plastic and the like from n series of strips of such materials is provided wherein n represents the number of strips and is an integer equal to or greater than two. Initially transverse perforations are formed at regular intervals in each of the strips to define in each strip a plurality of elementary sections having the same length L. The strips are then superimposed such that each perforated strip is offset with respect to an adjacent strip in the longitudinal direction by a distance equal to L/n. Thereafter the apparatus which performs the method exerts, successively and independently, on each of the successively superimposed strips a pulling and tearing off action to define the longitudinally offset superimposed perforated strips into separate elementary sections.

Abstract: An energy saving ambient pressure compensating laboratory fume hood system which provides safe, economical constant-velocity hood intake at all positions of hood access-opening and regardless of ambient pressure changes by means, in typical embodiment, of coacting cam and venturi structure linked to the hood sash.

Abstract: An improved infusion and stirring device is disclosed comprising a handle member having a first and a second portion. A first and a second retaining element are respectively secured to the first and the second portion of the handle member to stir an infusion liquid upon movement of the handle member. The first and second retaining elements engage opposite sides of a porous bag containing an infusion solid, such as a tea bag. A latch interconnects the first and second portions of the handle member thereby encompassing the porous bag to retain the porous bag between the first and second retaining elements as the handle member is moved to stir the infusion liquid. The improved structure may be readily injection molded from a plastic material.

Abstract: Cooking utensils for both stovetop and oven cookery. They are primarily intended to be used in conjunction with a disposable bag to produce cooked comestibles of superior quality and to eliminate the cleaning appurtenant to the use of conventional cooking vessels.

Abstract: A ship anti-torpedo defense system includes a detecting device for detecting and locating an incoming threat, such as a torpedo, and an interrelated missile launching and control system for firing at least one warhead carrying missile into the path of the oncoming threat, the missile having an active acoustic fuze system including a highly directional sensing system for continuously monitoring the position and proximity of the incoming threat and for detonating the warhead at the optimum proximity of the incoming threat with the missile. The missile floats at a predetermined depth determined by the predetermined depth of the torpedo to be intercepted.

Abstract: Disclosed is an improved underwater half-second pyrotechnic delay device ing an elongated tubular housing with a pair of holes for respectively threading suitable detonating cords through each end thereof. In operational burning series within said tubular housing are a plurality of lead sheathed protected explosives, a resilient pressure attenuating disc, a metallic capsule containing a calibrated delayed burning composition of 2/98B-Pb.sub.3 O.sub.4 having such geometrical configuration as to effect burning therealong for one-half second with considerable accuract, and another series of lead sheath protected explosives, a base charge, an explosive cord, and an end plug. An appropriate number of crimps are made along said tubular housing for holding the aforesaid elements in their proper places therein. Seals are employed at each end of said housing to make it watertight.

Abstract: An exercise projectile of the discarding sabot type and having a projectile body consisting of at least two parts which, after traversing a predetermined trajectory, are separated from one another and are provided with first and second connecting means for keeping these parts interconnected prior to firing and during the predetermined trajectory, respectively, and with disconnecting means for rendering the connecting means inoperative at least at or near the predetermined trajectory. The first connecting means comprise means cooperating with the sabot, like collars engaging in grooves of the sabot. The second connecting means are of the type activated by the firing of the projectile, e.g. of pneumatic type, like gas pressure interlocking means which, during the predetermined trajectory, are kept under a gas pressure derived from the firing gas pressure and are reduced during the predetermined trajectory by suitable means, like leakage ducts.

Abstract: An acoustic emission contact fuze that is responsive to high-frequency actic emission stress waves and distinguishes between such waves caused by impacts and signals caused by the operating environment.

Abstract: An environment sensing system that prevents rotation of a grooved rotor surface mounted on a shaft, with a ball, until a deceleration force causes the ball to climb an inclined surface, a bias spring causes the detent grooves to maintain alignment with the ball.

Abstract: An improved safe and arming device for isolating the fuse from the main eosive charge in spin stabilized shells to prevent premature detonation of such shells. The improved safe and arming device comprises a housing adapted to be positioned intermediate of the fuse and the main explosive charge of such shells for rotation therewith about a shell spin axis when the shell is fired, a rotor mounted in the housing for rotation about a rotor axis, and a rotatable control member engageable with the rotor and being rotatable about an axis extending in the same direction as the rotor axis for controlling the rate of rotation of the rotor. The rotor is positionable in a desired start position and is adapted to rotate in response to rotation of the shell to an armed position to communicate a detonation signal from the fuse to the explosive charge.

Abstract: A machine adapted for travel along a pair of railway rails supported by concrete crossties and arranged to be attached thereto by a pair of clips disposed inside and outside of each rail together with a bolt passing through each clip into threadable engagement within the crosstie. An engine on the machine powers a pressurized fluid system which, according to control signals from an operator on the machine, moves the machine along the rails and according to other control signals moves work heads so as to position fluid driven sockets in engagement with the heads of the four bolts to be inserted into or removed from a crosstie. Devices on the machine then are operated to simultaneous screw or unscrew the bolts into or from the crosstie and during this operation each bolt is torqued to a specified limit.

Abstract: A system for drying and burning wet waste materials includes a multiple hearth furnace having an upper, drying zone and a lower, burning zone. Wet waste material is introduced into the upper, drying zone and dried with a stream of hot air, and the stream of air is then conveyed to a condenser to remove water. The stream of air from the condenser is then conveyed to the center column of the furnace wherein it is heated, and the hot air is then introduced into the lower, burning zone of the furnace to aid combustion. Hot gaseous products of combustion are conveyed from the burning zone to an afterburner, and the gases leaving the afterburner are transferred to a heat exchanger and then discharged. In the heat exchanger a stream of ambient air is heated, and the heated air is then conveyed to the upper, drying zone.

Abstract: The needle bar of a sewing machine is mounted in a spherical bearing which is located adjacent the lower end of a needle bar bracket. The bearing is pivoted as a gate in the frame of the machine and the bracket is pivoted as a pendulum at its upper end to fixed structure in the machine head for movement in mutually perpendicular directions.

Abstract: A lock stitch sewing machine is provided with mechanism controllable by a servo motor for pulling thread from a bobbin, and including a selectively positionable member operably connected with a feed dog and bobbin thread engageable means for causing thread to be pulled from the bobbin by the thread engageable means during downward motion of the feed dog in amounts determined by the position of the selectively positionable member.

Abstract: A method of stitching a buttonhole in an electronically controlled sewing machine having the capability to generate a mirror image of a pattern. A first half of a buttonhole pattern is implemented which includes steps therein to return the work material to its starting position. Thereafter, a mirror image of the first half of the buttonhole pattern is implemented to provide a second half of the buttonhole which is perfectly symmetrical to the first half thereof. Additional reinforcing stitches about the cutting space of the buttonhole may be provided by the steps to return the work material to its starting position.

Abstract: A sewing machine is provided with an actuator controlled thread take-up lever. A microprocessor is programmed to provide signals for controlling the actuator to provide a system wherein the interaction of the needle, the needle thread take-up and needle thread tension are optimally controlled. A thread metering mechanism, also under microprocessor control, is included in the system.

Abstract: A stable plied yarn is produced by false-twisting two or more singles yarn strands with false-twist jets and passing the strands around a yarn wheel whereon the nodes are joined. The strands leave the wheel and ply together. The plied yarn is collected and can be tufted into carpet. The pressure of the fluid (air) supplied to the false-twist jets is varied to product varying amounts of twist in the singles strands which results in a range of twist amounts in the yarn plied therefrom, thereby avoiding streak effects in products made from the yarn.

Abstract: A bollard used in vessel mooring and like operations includes a bollard drum around which the line or hawser is wrapped several times to reduce the line tension at the free length behind the drum. A cleat is provided for holding fast the free length of the hawser at the reduced tension. The hawser may be quickly released from the bollard during emergency situations by simultaneously unlatching the cleat and releasing a lock on the bollard allowing it to rotate as the hawser is pulled off and finally lifted out of the cleat.

Abstract: A selectively floatable protective shroud is disclosed for protecting a boat hull from fouling by marine organisms. The assembly consists of an inflatable, elongated toroidal bladder with an inner opening larger than the circumference of the hull of the boat at its water line. The bladder has an inflation nozzle which is connected to a gas pump, for controllably inflating the bladder. A continuous, flexible, water impervious shroud has a circumferential edge mounted about the circumference of the toroidal bladder for protecting the boat hull, when deployed about the boat. By controllably inflating the bladder, the shroud is selectively brought from a submerged position beneath the boat to a deployed position enveloping the hull of the boat so as to protect the hull from fouling by marine organisms. A water pump is disclosed being connected to a water drain nozzle mounted on the flexible shroud, for controllably pumping out sea water from the region between the flexible shroud and the boat hull.

Abstract: 1. A shock crush sub-foundation comprising a base, a frame member reinforcing said base, an equipment support member, and deformation absorbing means between said frame member and said equipment support member for absorbing plastic deformation of said base and said base frame member to prevent deformation of said support member, said deformation absorbing means comprising a hollow member containing viscous fluid and having an orifice normally sealed by a diaphragm which is designed to rupture upon plastic deformation of said base member and said frame member.

Abstract: A whistle audibly responsive to extremely small pressure differentials is described. The whistle has a cylindrical inlet portion, a cylindrical outlet portion and a cylindrical constriction that form a passageway between said inlet and outlet portions. The whistle produces audible sound having an intensity of about 80 DB in response to a pressure differential, across the inlet and outlet portions, that is in the range of about 0.005 to 0.02 psi.

Abstract: Light rays for illuminating the indicating portion of the indicator pointer come from the hub portion of the same where the rotational axis of the pointer lies, so that constant illumination on the indicating portion is achieved irrespective of the angular position change of the indicating portion relative to the dial board.

Abstract: A powder applicator for applying powder to form a side stripe to the interior of can bodies along side seams thereof. The powder applicator includes a device for providing a layering effect on the gas entrained powder so that although the powder is normally carried by the gaseous stream it is directed into an orifice of a nozzle as a dense stream with the carrier gas forming a separate layer. In addition, the applicator forms a seal with the interior of the can body to define a limited sealed area within which the powder may pass. This sealed area contains corona charging pins which are arranged in a longitudinal line so that a maximum charging of the powder may be effected. Also, a diffused gas is directed into the sealed area to prevent the powder from clinging to the side walls of the sealed area and the charging pins.

Abstract: An isolation habitat for shipping, storing and displaying live baby turtles consisting of a bell shaped turtle chamber, a filter chamber communicating with the turtle chamber for receiving a microporous filter for air exchange and bacterial exclusion, a cap covering the filter chamber formed with perforations for air exchange and providing a positive clamp action to retain and protect the filter member, and a floor affixed to the bell shaped turtle chamber having traction means for permitting the turtle to right itself upon inversion. A separate literature and accessory chamber is snapped to the underside of the floor. In another form of the invention, absorbent shock proof material surrounds the turtle adjacent the floor of the bell chamber.

Abstract: An animal feeding apparatus comprises an open container, the front portion of which includes an inclined wire mesh ladder which projects outwardly and downwardly from the container and leads to an inclined ramp having a smooth and slippery surface, the ramp extending inwardly and downwardly into the container. A laboratory animal having easily climbed the ladder portion, finds the ramp member slippery, and is therefore restrained from entering the interior of the container. The animal thus remains poised on the ladder, extending only its head into the container to feed, so that food stored in the container remains in a neat and clean condition.

Abstract: An incubator is disclosed in which there is a support for supporting eggs, with a flexible screen intended to be positioned over the eggs when supported by the support. There is also provision for hot air to be passed over the screen so that heat is conducted downwardly through the screen to upper portions of the eggs. In addition, or as an alternative, there can be transverse dividers for dividing the eggs into rows on the support, with provision for relative movement on an intermittent basis between the support and the dividers so as to cause rotation of the eggs.

Abstract: A bird feeder having a generally V-shaped centrally disposed feed hopper provided with a plurality of vertically spaced feed apertures having associated bird support members. A spilled feed receptacle is positioned below the feed apertures to collect any spilled feed exiting through any of the feed apertures.

Abstract: A watering trough for chickens and like fowl is disclosed, of the kind comprising a bell member having an annular gutter integral therewith in the bottom portion, a supporting upright loaded by a ballast and water feeding means internally of the bell, the improvement consisting in having the bell member limitedly tiltable about a horizontal axis placed at the bottom of the gutter and a spring at the top of the bell to counteract the tilting motion and to open and close the water feeding nozzle also situated at the top of the bell. The device is self-reloading and can be used both resting on the ground directly and hung by means of a suspension tab.

Abstract: A mechanized system and method for shackling and handling live poultry are based on mechanically gathering the live fowl on foot at the farm and conveying successive groups of the gathered fowl into shackles in which the live fowl are transported in coops from the farm to the processing plant. At the processing plant, the shackles containing respective groups of fowl are adapted to be releasably supported on the processing conveyor for suspending the fowl during processing. The system and method for handling live poultry can also be employed with transport vehicles which deliver uncooped poultry to the processing plant loose and on foot within the confines of the transport vehicle. In this embodiment, the live poultry are mechanically grouped and conveyed directly from the transport vehicle to the shackles and the loaded shackles with the live fowl are then transferred directly to the plant processing conveyor for processing.

Abstract: This invention relates to a novel liquid heater and more particulary to a water heater having a crescent-shaped heat receiving heat exchanger and element therefor.

Abstract: A circuit is provided in an electronic closed loop air-fuel ratio control system for starting and terminating the operation of the system at different voltages from an exhaust gas sensor.

Abstract: A diesel cycle internal combustion engine having at least one cylinder with coplanar induction and exhaust valves and a precombustion chamber, in which the cylinder head is formed with a recess defining a combustion chamber with a projection on the crown of the piston, both the recess and the projection having a triangular cross section with respective upper surfaces being inclined at different angles from one another with respect to the longitudinal axis of the cylinder and respective side surfaces being inclined at substantially the same angle as one another with respect to the longitudinal axis of the cylinder.