Abstract: An apparatus and method for detecting disturbance in a protected area or perimeter by scanning the area or perimeter with a rotating beam of radiating energy, such as light, infrared, ultraviolet and the like, and counting the number of pulses at the output of a detector or sensor upon impingement on the detector or sensor of the beam reflected by each one of a plurality of reflectors disposed in the protected area or perimeter. Upon turning on the apparatus, a first pulse count corresponding to each complete revolution of the beam is stored as a pulse reference number for a "normal" state in the protected area or perimeter. In operation, the number of pulses for each revolution of the beam is continuously counted and compared to the stored reference number and an alarm is triggered as soon as the stored reference number and the counted number are unequal.

Abstract: A fuel injection system for an internal combustion engine utilizing output signals from existing "dual magneto" ignition system to produce output pulses in synchronism with the revolution of the output shaft. A pressure transducer measures the pressure in the intake manifold while a control system generates a VALVE OPEN signal in synchronism with the magneto signal and having a duration proportional to the pressure in the intake manifold to open the fuel injectors and provide fuel to the engine. A special engine starting fuel schedule, hot enrichment schedule, cold enrichment schedule and auto-lean fuel schedule are also generated by the control system.

Abstract: In a computer controlled power factor control system switches are activated and deactivated in a predetermined order so that each capacitor is electrically connected to the power distribution system for substantially the same total time throughout the life of the capacitors.

Abstract: A device permits fastening a tool (preferably an EDM tool) to a machining head in at least two different orientations. The tool is mounted on a tool holder, and a pair of portions alternately fix the holder to the head in two different orientations, for example, one in which the tool is positioned for machining operations, and another in which it is positioned for touching up. In a first embodiment the portions are formed as two studs provided on the holder each engageable with the machining head. The studs are positioned with respect to the tool so that engagement with the machining head presents the tool in the two different orientations. In a second embodiment one of the portions is formed on a first tool holder which carries the tool thereon, while the other portion is formed on a second holder mountable to the machining head, the first holder being being mountable either to the machining head directly or to the second holder.

Abstract: An electrical discharge machining fluid consisting principally of de-ionized water and a triethanolamine salt, the latter being at a concentration of 0.2% to 10% by volume.The method for preparing the machining fluid consists in adding to the de-ionized water, under vigorous stirring, from 0.2% to 10% by volume of a mixture of triethanolamine and a fatty acid. The machining fluid of the invention permits to operate at an increased machining speed and to obtain clean machined surfaces.

Abstract: A method for manufacturing a panel, such as an automotive panel, using the resin transfer molding (RTM) process. The method includes the steps of preforming a first mat of glass fibers into a shape approximating one side of the panel and, similarly, preforming a second mat of glass fibers into a shape approximating a second side of the panel. A urethane core is sandwiched in between the preformed mats to thereby form a premolded assembly. This premolded assembly is placed into a mold and a settable resin is injected into the mold to form the panel.

Abstract: The invention relates to a method of the manufacture of dimensionally stable, liquid-impermeable, flexible press bands, particularly for wet presses of paper making machines. With known manufacturing methods for such press bands, the provision of a structured surface for liquid discharge on the outer surface of the press band, which faces the fibrous web or the felts, is achieved either by reversing the press band after removal from the casting mould so that the structured surface becomes the outer surface of the band while the smooth surface forms the inside thereof, or by grinding drainage ducts into the outer surface of the press band. But especially in the case of small band diameters, reversing of such cast press bands causes serious problems and entails considerable expenditure, wherein the risk of damage to the band cannot be excluded and grinding of the drainage ducts is just as expensive.

Abstract: A torque rod for a heavy duty motor vehicle includes a shaft and two ends, each end being selectively attachable to points on the vehicle's chassis. The rod is composed of a polymerizable composite material. The shaft is either of solid, hollow, or layered composition. As an option, the shaft includes two adjustably interlocking halves enclosed and overlapped by a slidable sleeve. The sleeve is provided with a hole for the insertion of a bonding and filling material to fix the selected interlocked position to fit the chassis as needed.

Abstract: The specification discloses a ball screw having an internal return which is selectively removable externally of the ball nut for servicing. The return is held in place by a spring clip operatively fitted into a dove-tail slot built into the exterior of the ball nut. The provision of the dove-tail slot provides for easy removal and replacement of the internal return, external insertion of the ball bearings when the ball screw must be reassembled for any reason, and, if desired, for shimming the internal return to keep the return at the proper height when the ball screw is rebuilt.

Abstract: A system for controlling the idling speed of an electronic-injection internal combustion engine; which engine presents an air supply valve, the minimum setting of which is controlled by at least one heat-sensitive element; and which system comprises electronic means for detecting at least the speed of the engine, the temperature of the engine cooling water, and release of the accelerator pedal, for accordingly regulating the amount of heat supplied to the aforementioned heat-sensitive element.

Abstract: A mounting pedestal supports an electrical meter and power box and other utility supply devices in a compact and safe arrangement for their provision to a mobile home. A hollow, plastic post is supported in an upright position in the ground or in concrete, and the power box and meter are attached to an L-shaped mounting bracket atop the post. The meter, power box and other utility supply devices are connected to a common ground contained in the post. The common ground includes a ground wire extending interiorly of the post and a shared electrical connector contained in the post, connected to the ground wire and the ground wires of each of the utility supply devices.

Abstract: A cover for a wooden deck structure which protects people walking on the deck structure from splinters. In one embodiment, the cover is in the form of a thin walled, U-shaped channel member which fits over one board of the deck structure. In doing so, the central section of the channel member overlies the top of the board while the sides of the channel member extend downwardly along the sides of the boards. The channel member is made of a synthetic extrudable material, such as vinyl, and is attached to the board by gluing.In a second embodiment, the cover is made from a plurality of elongated, flat strips haivng a tongue on one side and a matching groove on its other side. The strips are positioned on top of the deck strucuture so that the tongue and grooves of adjacent strips interlock and are attached to the deck structure by glue. In addition, the longitudinal axes of the strips can be transverse with respect to the axes of the boards in the deck structure.

Abstract: A measuring device employing laser interferometry, and featuring a device for tracking a mobile target; which tracking device is located between a light source and a semireflecting mirror, for the purpose of eliminating any inaccuracy due to the construction of the aforementioned measuring device.

Abstract: A device for use in repairing automotive bodies which has an elongated flexible strap constructed of a tough material, such as reinforced neoprene rubber. A ring is attached to one end of the strap while at least one and preferably several elongated strips of double-sided adhesive tape is secured to one side of the strap. The other side of the adhesive tape is adhesively secured to the automotive body so that a longitudinal force imposed on the strap through the ring is transmitted through the adhesive tape into the automotive body.

Abstract: A tamper indicating package including a container having integrally molded flexible retainer means for engaging and resisting the movement of a tamper indicating ring attached to a closure by frangible means so that separation of the ring of the closure indicates tampering.

Abstract: A connecting construction for a sidestay of a heald frame and a transverse beam having a sidestay of a heald frame, a transverse beam to be connected via an end face thereof with the sidestay, a concave engagement space defined in the end face of the transverse beam, a projecting portion formed integrally with the sidestay to be inserted into the concave engagement space and a securing device for pressingly securing a peripheral wall of the concave engagement space to the projecting portion in a longitudinal direction of the sidestay.

Abstract: A machine which uses electroerosion with an electrode piece by means of a stretched electrode wire unwound between two wire guides with at least one device with crossed movements to fabricate other pieces, these wire guides are equipped to displace in a parallel plane to that of the trajectory and to cut off in this way by inclining the wire to a predetermined angle in relation to a neutral perpendicular axis to this plane and to make it pivot on itself around a mobile axis parallel to this neutral axis passing by this guide and displacing itself with it. It presents also an equipped device in order to subjugate the rotation of the guide wire to displacements of the device to crossed movements. At least one of the wire guides is in preference to an open guide open to a gap.

Abstract: A lawn mower having a housing with a top, a bottom and a cutting chamber which is open to the bottom. A plurality of wheels are rotatably mounted to the housing and support the housing upon a ground surface while a push bar extends upwardly and outwardly from the housing to enable the housing to be maneuvered by a person utilizing the lawn mower. An electric motor has an output shaft and a long cutting element is secured to the output shaft. The electric motor is detachably secured to the housing so that, upon attachment, the cutting element is positioned within the cutting chamber of the lawn mower. An electric rechargeable battery is also attached to the motor.

Abstract: A mold blank for manufacturing eyeglass lenses containing a flat top bifocal segment. A ceramic platform is first constructed containing an optical surface having a recess corresponding to the flat top bifocal segment. A concave-convex glass mold blank polished on both sides is placed on the optical surface and across the recess of the platform and the mold blank together with the platform is placed in a furnace. The furnace is then heated to a preselected temperature at which the mold blank thermally deforms and sags against the optical surface and into the recess. Upon cooling the mold blank can be used to mold plastic eyeglass lenses. A method for making the mold blank is also disclosed.

Abstract: The capacitive detector of position between two supports (10 and 30) comprises a series of electrodes (11) on support (10) and a series of electrodes (13) on support (30). The electrodes (13) of support (30) and electronic circuitry (21) are formed on the lower face of an integrated circuit substrate (20) constituting the electronic part intended for the application of incremental potentials to the electrodes (13).