Abstract: A workpiece transfer machine of the type including a plurality of regularly spaced machining stations is disclosed. Workpieces are advanced to the successive machining stations by means of a transfer bar powered to have a rectangular walking beam motion. The transfer bar is provided with nests or carriers for supporting the workpieces and is adapted to be retracted and remain in a position wherein the nests are located midway between the machining stations while the workpieces are being machined.

Abstract: A machine for cutting the lead ends of components mounted at printed-wiring boards, also referred to as printed circuits, comprising at least one rotating driven cutting disk, a grinding device for grinding such cutting disk, the cutting disk and the grinding device being relatively movable towards one another.

Abstract: A trim press for severing cup-shaped articles from a sheet of thermoplastic material in which the articles have been integrally formed as by a vacuum forming operation. A horizontally reciprocable punch is driven to sever articles positioned in a stationary die by a linkage arranged to drive the punch at a relatively slow speed during the severing operation to achieve a smooth shearing separation of the relatively soft thermoplastic material. The sheet is fed into the die in step-by-step movement through vertical sheet guides fixedly mounted in a treadle which is reciprocated with the punch at a proportionate speed. A flexible sheet guide connected between the guides in the treadle and a fixed point on the machine frame flexes to accommodate reciprocation of the treadle while continuously guiding the sheet to the guides on the treadle. Feed fingers mounted on the treadle advance the sheet to the die in step-by-step movement synchronized with the stroke of the punch.

Abstract: A machine for clipping strip material including a blade operated in a cyclic manner having a cutting stroke and a return stroke. A toggle linkage including a toggle bar effecting one blade cycle by moving in a lengthwise direction with the blade being reciprocated by toggle linkages moving through an upright position to a position oppositely inclined to their starting position. The toggle bar is coupled to an actuating piston rod of a pneumatic cylinder. End caps of the cylinder are recessed to receive piston extensions during final stages of piston travel for cushioning purposes. Seal means engage each piston extension during the later stage of piston travel to trap air between the advancing piston and the end cap. Accordingly, blade and toggle assembly inertia is dissipated in the compression of trapped cylinder air. Exhaust means within each of said end caps is valve controlled to release cylinder pressure at a desired pressure braking the latter stages of piston travel.

Abstract: A method and apparatus for generating tones for an electronic organ in which a number of oscillators less than the tones in a scale are provided with the outputs thereof divided by selected divisors to produce a range of frequencies related to one another as the tones of the chromatic scale. The range of frequencies thus developed can be employed as, for example, the top octave for one or more of the organ keyboards and divided down to produce pitches corresponding to other octaves of the keyboards.

Abstract: An electronic musical instrument comprises first and second voltage-controlled frequency-variable oscillators responsive to application of a pitch determining voltage signal from a keyboard circuit to produce first and second audible frequency signals, respectively. The second audible frequency signal is coupled to the first voltage-controlled oscillator to produce a frequency-modulated tone signal to be sounded in which the first audible frequency signal is frequency-modulated with the second audible frequency signal. The content of harmonic components in a musical tone can be increased by sideband components resulting from frequency modulation. The second audible frequency signal may be amplitude-controlled to be proportional, in amplitude, to the magnitude of pitch determining voltage signal, amplitude-modulated with a time-varying control waveform, and/or waveform-modified to provide desirable modulation effects.

Abstract: A fixedly mounted mute for stringed instruments is provided through clamp means which permit selective manual securement and clamping to the portions of the strings located between the instrument's bridge and the string holder, or tailpiece, to which the strings secure. The construction takes advantage of the characteristics of the material of the clamp means and is of such nature as to prevent dislodgement, or movement thereof due to vibration from the instrument or due to manual manipulation of the mute between operative and inoperative positions. The size of the attachment is nominal so as to render the attachment compatible with the interior dimensions of existing carrying cases for the instruments.

Abstract: An improved switch mechanism for controlling the actuation of a plurality of electrical switches by means of tablets of a musical instrument, such as an organ. The mechanism permits a plurality of tablets to be depressed simultaneously and releasably retained in the depressed position so as to maintain a selected actuation of switches such as for providing selected voicing circuits in an organ. The mechanism is arranged to cause an automatic release of any previously depressed tablet as an incident of the user depressing subsequently one or more tablets to the switch actuating position. The tablets may be biased to the switch releasing position with the mechanism permitting the biasing structure to return the tablets to the switch releasing position as an incident of such further tablet depression.

Abstract: An organ stop switching system includes a plurality of stop switches and a random access memory within which combinations of stop switch settings are stored. The stop switch settings are multiplexed into a memory loop having a capacity fractionally smaller than the random access memory. This loop is used for an input and an output circuit for the random access memory during time slots corresponding to numbered pistons selected for storing and recalling stop setting combinations. A serial-to-parallel converter receives information from the memory loop and provides outputs for operating stop control circuitry of the organ.

Abstract: Apparatus to be used in conjunction with the practicing of a musical instrument is described. The circuit contains and interconnects an electronic metronome, a timer, a tape recorder, a tone generator, earphones, and the electronics for integrating these elements, as well as an internal power supply. This apparatus is particularly well suited to the needs of the advanced student who plays well and desires to progress to the professional level since the interaction of the elements forces the student to play the instrument with speed and accuracy while under time pressure. The combination of elements also leads to a flexibility of functions. Finally, all elements are implemented from electronic components, resulting in a small, low cost, reliable system.

Abstract: A semi-automatic firearm having a slide axially movable with respect to a frame between a forward battery position where the firearm is discharged, and a full recoil position where the spent cartridge is extracted and a new cartridge is subsequently loading. Either a pair of oppositely wound, concentric springs or a flat helical spring extends between the slide and the frame to form a recoil mechanism which resiliently biases the slide toward battery. The slide partially surrounds a barrel which is pivotally secured to the frame toward its rear end through a link. The slide contacts the barrel at a point diametrically spaced from the link when the slide is in battery thereby resiliently biasing the barrel in a forward direction which imparts a rotational moment to the barrel about the pivot axis of the link. The rotational moment forces the front end of the barrel downwardly against two distinct support areas on the slide.

Abstract: This invention relates to firearms of the type disclosed in my prior U.S. Pat. No. 3,198,077, granted Aug. 3, 1965, in which the bolt does not turn and the action is locked by turning the receiver. The principal parts, such as floating ring receiver piston and ring power cylinder are made from cylindrical extruded metal tubing or metal rods. The combination of floating ring receiver piston, ring power cylinder and other incidental parts are used to form a new action for an automatic firearm.This new action consists of a floating ring receiver piston, barrel and ring power cylinder. The above-mentioned parts, the frame and breech block lend themselves to manufacture by the use of automatic lathe and screw machines.

Abstract: At the beginning of a working stroke of a compressed air loaded working piston disposed reciprocally in a pneumatic operated ramming tool said piston is initially set in motion under the action of minor amounts of compressed air until its top becomes immersed into stored compressed air and the working piston is then exposed to the full force of said stored compressed air to perform its working stroke. This working process permits to use a substantially simpler ramming apparatus.

Abstract: A tandem diaphragm brake booster includes a pair of diaphragm pistons which are axially movable for assisting brake efforts through manual operation. The two diaphragm pistons are connected to each other by a key member which also serves to prevent an air valve from accidental returning.

Abstract: A vertical carton erecting machine of the stationary die-reciprocal plunger type in which the knife edges for opening the carton slots and receiving the tabs are fixedly mounted on the plunger. Cam-operated flippers press the top edges of the carton outwardly to cause the tabs and slots to interlock. Carton strippers stationarily mounted at the bottom of the die may then engage the carton and strip it from the plunger as the latter is withdrawn.

Abstract: An installation for the supply of fresh and/or heated air into the interior space of a motor vehicle which is equipped with an air guide channel within the area of the inner covering of a body part; the air guide channel is formed by a part of the inner wall of the vehicle body part and by a cover member mounted thereon and is in communication with the vehicle interior space by way of discharge openings directed into the vehicle interior space; recesses are thereby provided within the edge area of the cover member and/or within the inner covering adjoining the same or in the vehicle body part adjoining the cover member which form the discharge openings.

Abstract: An air vent having a detachable front plate provided with apertures, a closure plate behind the front plate, an operating device for moving the closure plate toward and away from the front plate for blocking and unblocking and apertures, the operating device being connected to the closure plate by means of a slot and pin connection which allows the closure plate to be removed independently of the operating means.

Abstract: A device for transfer of fresh air or air mixed with gases, vapors, smaller particles etc. in one or other direction between a stationary place and a moving place. A stationary elongated box is in communication with the stationary place and has a slot in its longitudinal direction and said slot closeable by a tightening band bearing on contact surfaces at each side of the slot and on the outside of the box. A hollow connection body projects through and is movable along said slot and is in communication with the moving place. Said connection body is provided with slide shoe or shoes in the slot and carries a press roller at each end of the slide shoe or at each slide shoe pressing the band against said contact surfaces and backing rollers lifting the band from engagement with the contact surfaces.

Abstract: An improved apparatus for hulling and separating loosened seed hulls from kernels of meat employing compartmentized separator for the meat products.

Abstract: An improvement in a process for introducing carbon dioxide into a liquid flowing through a main line, the improvement residing in withdrawing a portion of said liquid through a by-pass line, introducing carbon dioxide into said liquid while in said by-pass line and returning the carbon dioxide enriched liquid to said main line while adjusting the amount of carbon dioxide introduced into said by-pass line to provide a desired carbon dioxide concentration in said liquid in said main line and a device therefore. The process and device disclosed are especially useful for introducing a gas into a beverage, for example, beer, mineral water, barley water, fruit juices, milk and generally alcoholic and nonalcoholic carbon dioxide containing beverages.

Abstract: A cooking assembly includes a heating plate and two identical outer plates each fabricated of heat conductive material and each including a handle. The outer plates and the heating plate each include a hinge to allow the outer plates to be coupled to opposite sides of the heating plate. Each of the first and second outer plates when coupled to the heating plate define a cooking chamber within which food may be cooked. The assembly further includes an insulating drip tray for insulating the cooking assembly from means upon which it is supported and for catching drippings from the food being cooked by the heating plate. The tray includes means for supporting the cooking plate and the first and second outer plates in either a horizontal or a vertical position relative to the bottom of the tray to permit different selective cooking operations depending upon the nature of the material cooked.

Abstract: Apparatus for cooking food in strip form including a base, a first support rigidly affixed to the base, a second support hingedly affixed to the base and a drip tray. Both support means include heating means and integral mesh means for supporting the food to be cooked.

Abstract: A knock-down press is provided which includes a high pressure intensifier cylinder and a knock-down frame. The overall frame includes two generally C-shaped frame members which are held in parallel relationship by a lower work-supporting bar affixed to lower portions of the frame members and by an upper cylinder-supporting bar affixed to upper portions of the frame members. The pressure intensifier cylinder has a lower end portion affixed to the cylinder-supporting bar. The lower and upper bars are affixed to the C-shaped frame members by shoulder screws having cylindrical shanks extending through bores in the bars and into aligned bores in the C-shaped frame members. This assures accurate alignment of the frame components.

Abstract: A stamping device especially for heavy products such as rolled goods which, when being transported, are stamped on a roller train equipped with a guiding device. The guiding device comprises a feeler device and an aligning device connected to the feeler device, a stamping head being connected to the aligning device.

Abstract: In a line printer character belt in which characters are mounted on flexible fingers which are struck by printing hammers toward a platen in the printing operation, the fingers are flexed toward the platen by a projection on the fingers or on a character block on which the fingers are mounted. Vibration subsequent to the printing operation is eliminated, thereby providing excellent printing quality free of dirt and ghosts.

Abstract: There is disclosed a print head having a print head frame, a plurality of drive wheels, a support, and a plurality of printing bands trained about the support and the respective wheels so that the selected printing elements can be presented at a printing zone. Each printing band has a plurality of different printing elements connected by hinges. The support has a pair of support members having respective elongated lands, and the lands have tapered entries and terminate at opposed generally parallel shoulders. Each printing band has spaced apart, generally flat, smooth lugs at its underside. The support shoulders are spaced apart by a distance approximately equal to the length of a lug. The support lands contact only the undersides of adjacent hinges while a printing element is at a printing zone. Each wheel has a plurality of notches to receive the lugs on the underside of the respective printing band.

Abstract: A squeege structure for a screen stencil of a printing machine comprises an elongated carrier frame and a squeegee coupled to the carrier frame by a thrust drive for moving the squeegee between operative and nonoperative positions. The thrust drive includes a central first thrust drive unit and a plurality of second thrust drive units mounted on each side of the first thrust drive unit. The movable portion of the first thrust drive unit may only move along its thrust axis which is in a direction perpendicular to the longitudinal axis of the carrier frame and is restrained from moving in a direction perpendicular to the thrust axis. The movable members of the second thrust drive units may move along their thrust axes and may also move in a direction perpendicular to the thrust axis and parallel to the longitudinal axis of the carrier frame, but may not move in a direction perpendicular to both the thrust axis and the carrier frame longitudinal axis.

Abstract: 1. A cartridge including a substantially rigid extractable case having at e of its ends a head formed to receive a propellant and to provide a primer support adjacent to said propellant, a projectile releasably coupled to the other end of said case, a piston engaging an inner end of said projectile and extending into said casing, said piston having a shoulder near its inner end, a base cup extending into and releasably coupled to said head, said cup enclosing the inner end of said piston with said end spaced from the bottom of said cup, and seal means between the rim of said cup and said shoulder, a second shoulder on said piston in front of the first shoulder, and a shoulder in said case for cooperation with the second mentioned shoulder on said piston in deceleration and deformation of said piston.

Abstract: Slip cast, fused silica shields such as radomes and antenna windows with ir pores filled with graded-Z radiation absorbing particles, give protection against radiation damage, improve the ablation characteristics and do not impair the microwave properties of the shielding.

Abstract: Coal particles are discharged from a hopper into a common, vibrating feed pan which, in turn, distributes the particles evenly across the surface thereof and delivers the particles along the length thereof to a metering trough positioned below and along a longitudinal axis which extends across the discharge end of the pan. The metering trough divides the volume of coal particles into a plurality of equal batches, each of which, in turn, drops into a mixing device where the particles become airborne and are delivered into a feed conduit from whence they are fed to a furnace burner. By controlling the rate of vibration of the feed pan, variables such as moisture content of the coal and/or air, particle size and BTU content of the coal can be compensated for to maintain a desired temperature within the furnace.

Abstract: An ignition, warm-up and low-load-stabilization system for furnaces fired by pulverized coal. In conjunction with a system in which pulverized coal is sent directly from a coal mill to a load-bearing nozzle and in which combustion air is brought to the nozzles from an air preheater that uses hot furnace gases to warm the combustion air, ignitor nozzles are provided that are supplied by pipes bearing coal from which the drying air has been separated. Combustion air for the ignitor nozzles is heated by an independent heat source that heats the combustion air or a portion thereof to a temperature higher than that of the air supplied by the air preheater. Such a coal-fired ignitor burner can replace oil or gas-fired ignitors and warm-up guns and thereby reduce the amount of oil or gas used in ignition, warm-up, and low-load stabilization.

Abstract: An incinerator is provided having an extended length of tubing, preferably coiled, and immersed within a bath of molten salt. Means are provided for introducing sludge at a controlled rate along with hot air under pressure for carrying the sludge through the immersed length of tubing, the air and the heat supplied from the molten salt bath causing concurrent drying and burning of the sludge. The exhausted gases are further oxidized by passing them through a portion of the molten salt bath, while solids are separated out and removed.

Abstract: A device for feeding materials in a feed direction for operations thereon, such as sewing buttons or buttonholes, either directly on the material or onto separate strips of material which are fed thereto. The device includes means for clamping the material which is to be sewn so that it does not shift as it is moved through a stitching area. A movable carriage is mounted on a support frame for movement backwardly and forwardly in respect to the direction of material feeding, and it carries a lower endless conveyor arranged beneath and cooperable with an upper endless conveyor so that the endless belt stretched thereon may be biased together during the feeding operation so that the material is clamped along its entire length as it is fed with the movement of the carriage. The apparatus includes a separate clamping device for clamping the forward edge of the material at the end thereof which is beyond the sewing needle operating area and this is also movable with the carriage.

Abstract: A hydraulic actuator for transversely shifting the relative positions of a needle bar and the backing material in a tufting machine. An electronic pattern control mechanism drives the hydraulic actuator in response to the predetermined stitch pattern information in the electronic control circuit, which determines the amount of relative transverse shifting of the needle bar for each stitch location. A feedback mechanism associated with the hydraulic actuator creates a feedback signal which is compared with a pattern stitch command signal in order to produce an output signal for shifting the hydraulic actuator to a subsequent transverse needle bar position relative to the preceding needle bar position.

Abstract: An apparatus for controlling an electric sewing machine has a mechanism for transmitting the driving torque of a motor to the sewing machine to drive the same, a mechanism for imparting braking power to the sewing machine to stop the same, a mechanism for stopping the needle of said sewing machine at desired positions in its stroke and controlling means adapted to control these mechanisms. At least a part of the controlling means is constituted by a microcomputer. The signal input to the microcomputer is provided in synchronization with a synchronizing clock signal, and only such input signals as required in respective periods of operation are checked in each of the periods, so that the checking of the input signals is facilitated and accidents due to erroneous operation are avoided.

Abstract: A cleat having at least two diverging fingers to receive a tossed mooring line and an aperture disposed below the fingers into which the line drops and in which the line is retained by at least one downward projection extending into the aperture.

Abstract: A towed submersible body is utilized for housing underwater instrumentation, particularly a scanning type of sonar, the housing constituting a sphere which is attached at its top to a cable towed by a helicopter or by a surface vessel. The spherical housing of acoustically transparent material has hatches and ports top and bottom to aid in flooding and draining the interior. Ballast weights are fastened to the bottom of the housing near the lower hatch to control the location of the wet center of gravity of the body such that it is significantly below and slightly forward of the geometrical center of the sphere to provide stability during towing. A small projection on the housing in the form of a small diameter wire rope fastened to a meridian passing through the tow point or a point approximately 10.degree. aft of the tow point provides for stable towing at speeds up to approximately eight knots with the tow cable at an angle not more than about 10.degree. from the vertical.

Abstract: A safety release for water skiing tow lines comprising a U-shaped body having a rearwardly facing slot therein, a mounting bracket for securing the device to a ski pylon, a release arm pivotally secured to the body and including a bolt which extends across the slot when the arm is in a vertical position so as to engage the terminal loop of the ski rope. When the arm is pulled forwardly by means of a trip line operated from within the boat, the bolt is retracted out of the slot thereby releasing the tow line. Adjustable spring biased detents are provided for locking the release handle in the open and closed positions.

Abstract: A volley ball rotation counter for keeping track of the rotation of the serve, having right and left rotatable upwardly facing discs capable of receiving visible removable markings, the discs having indicia thereon indicating six symbolic playing positions on each disc and spaced around the axis of each disc, disc rotation retarding devices mounted on a frame and for resisting accidental disc rotation and permitting said discs to be rotated manually in clockwise directions when an operator manually engages an edge of a disc to urge said disc into rotation.

Abstract: A conveyor means moves spaced treads along a horizontal path defining a pass line where longitudinally spaced spray means are actuated by control means to spray the tapered leading and trailing edges of the treads. An overspray collection means is located adjacent to each spray area to control the overspray. The overspray collection is automated to present a new surface after a predetermined number of sprays to assure an uncontaminated work zone at the site of the overspray.

Abstract: A method and apparatus for reinforcing a fabric, wherein a grooved printing member prints on the fabric a strongly directional pattern of lines of fluid reinforcing material having a Brookfield viscosity of from 10,000 to 25,000 centipoise, the reinforcing material being set or cured in a heater.

Abstract: A birdhouse of cylindrical shape having circular end walls affixed in a detachable manner. Formed integrally with one of the end walls is a perch projecting outwardly from the end wall along a fold line. A perch support member is in abutting contact with the end wall and the perch. A retainer strip is struck from the end wall and the perch to confine the support member against dislodgment. A support strap for the birdhouse is provided with enlarged ends for inserted locking engagement with openings in each end wall.

Abstract: A collar for being worn by a dog, cat or other domesticated pet; the collar including a row of small electric lamps studded around the collar, so as to be visible in darkness or subdued daylight; the circuitry including a replaceable dry cell battery and a manually operated switch mounted on the collar.

Abstract: An internal combustion engine has an articulated connecting rod linkage which is automatically adjusted by an improved fluid-pressure-responsive control, so that different density fuel-air charges inducted into the engine cylinder will be compressed to substantially the same extent each time the cylinder is fired, regardless of throttle setting, engine speeds, or loads.

Abstract: Disclosed herein is an engine system which comprises an internal combustion engine, an air admission system to admit scavenging air, under pressure, into an engine cylinder through an additional intake valve and an EGR system. The air admission system includes an air pump and an EGR conduit of the EGR system having an inlet end connected to the engine exhaust conduit and an outlet end connected to the air admission system upstream of the air pump to effect admission of recirculated exhaust gas through the additional intake valve together with scavenging air. With this EGR system and the replacement of residual gas with scavenging air, the rate of exhaust gas in the engine cylinder upon ignition is kept substantially constant over varying partial loads.

Abstract: A control valve of an exhaust recirculation apparatus comprises an expansible vacuum chamber communicating with a venturi portion and having a first diaphragm and a spring urging the diaphragm to expand the chamber, an expansible exhaust pressure chamber having a second diaphragm disposed to oppose the first diaphragm at a distance and communicating with an exhaust inflow chamber, a control chamber disposed between the above chambers and defined by the first and second diaphragms and a frame mounting the first and second diaphragms thereon. The first and second diaphragms are connected by a bracket to which a seal member is secured through a block. In the control chamber is disposed a conduit one end of which has an opening facing the seal member with a gap therebetween, the other end communicates with a throttle portion and an exhaust gas recirculation valve provided in an exhaust recirculation passage.

Abstract: A closed loop exhaust gas recirculation system for an internal combustion engine having an intake system, an exhaust manifold, a throttle disposed within the intake system for controlling air flow therein, a conduit coupling the exhaust manifold to the intake system for supplying exhaust gases back to the intake system for controlling the generation and emission of oxides of nitrogen and for improving driveability. The system includes a first memory pre-programmed with a look-up table of optimal values of absolute manifold pressure (MAP.sub.0) as a function of engine speed (RPM) and throttle position (.theta.). The actual operating parameters of absolute manifold pressure (MAP), engine speed (RPM) and throttle position (.theta.), or alternatively air flow (AF), are accurately sensed. The actual values of throttle position or air flow and RPM are used to address the first memory which outputs the pre-programmed optimal value of MAP.

Abstract: A fuel injector of the invention comprises a plurality of parallel, threadlike tubes for admitting electrostatically charged fuel and an accelerator electrode biased at the opposite potential to that applied to a fuel charging electrode. The fuel admitted through the parallel tubes is atomized at the outlet port of the tubes as a result of electrostatic repulsion between charged particles, and attracted and accelerated by an electrode spaced from the outlet port of the tubes. A control electrode may be provided spaced from the accelerator electrode adjacent to the outlet port of the tubes and biased at a potential with respect to the accelerator electrode much lower than the potential applied across the accelerator and fuel-charging electrodes. By varying the potential at the control electrode, the fuel quantity delivered can effectively be controlled.

Abstract: A canister comprising:a main body having a space therein; an adsorbent material contained in the space of said main body; an inlet pipe attached to said main body for connecting a carburetor float chamber with an upper portion of said space defined between said main body and said adsorbent material; an air suction pipe attached to said main body through which pipe the lower portion of said space defined between said canister and said adsorbent material communicates with the atmosphere; and valve means for selectively connecting said upper portion of said space with a fuel tank, thereby to prevent an evaporation gas from flowing from said fuel tank through said upper portion of said space into said carburetor float chamber.

Abstract: A fuel injection system includes a first piston which can be subjected to fluid under pressure to cause displacement of a further piston, which causes delivery of fuel through an outlet. In addition a second piston is provided which is located in a cylinder communicating with the cylinder containing the first piston. The second piston is of smaller diameter and can also be subjected to fluid under pressure. When this occurs the second piston is moved and transfers fluid under pressure into the cylinder containing the first piston to achieve a limited delivery of fuel through the outlet. Valve means is provided to control the application of fluid pressure to the second piston and also the first piston.