Abstract: Device placed at the outlet of a machining zone and having an outflow gauge equipped with two barrels in which a metal wire passes, an electrical current running through the wire which travels under tension between two guides, a pumping installation injecting a machining fluid under pressure through an opening of this guage, an element mounted at another opening of the gauge to measure the outflow of this fluid between wire and barrel, a transducer converting this measurement into an electrical variable, and a comparator suitable for sending a signal to a control unit when this measurement reaches or surpasses a reference value. The control unit is arranged for controlling a pulse generator to change at least one machining parameter in such a way as to bring the measurement of the outflow to or to below the reference value. This device is useful for monitoring the variation in the cross-section of the wire and preventing its breaking.

Abstract: A modular frame structure having a cooperating strut coupling and a connection node coupling which permits quick assembly and release. A method is presented for preassembly of the node couplings to the connection nodes to hasten field assembly. A method is also provided for connecting a strut to connection nodes which are fixed in space by the portion of the frame structure already assembled.

Abstract: A process for impregnating corks, in such a way as to improve the sealing effect thereof, with at least one substance which is repellent to aqueous solutions and which is comparable or identical to aqueous solution-repellent substances naturally occurring in cork, in regard to sealing effect and compatibility with the material to be sealed in a container by the cork, provides that prior to the impregnation step on a surface thereof which is to be impregnated the cork is exposed to direct current corona discharge or an alternating current corona discharge, thereby enhancing the capacity of the cork to absorb the impregnation agent.

Abstract: A balanced solenoid operated valve having a balanced solenoid armature, with balancing means in the upper end of the armature, and the valve can be made as a two-way valve, a three-way valve or a four-way valve.

Abstract: A pool exercise device includes a pair of supports having upright portions having a slot therein. End members having a regular angular geometric shape are removably positioned in the slots. Rods fixed to the end members project colinearly and are connected by a sleeve. The height of the rods is adjusted by removing the end members from the slots, selectively rotating, and returning the end members to the slots for securement therein.

Abstract: The disclosed invention provides a container made of paper and comprising an end wall opposite an opening, right and left side walls extending between the end wall and the opening, and upper and lower side walls extending between the end wall and the opening. Each of the side walls has a double layer construction consisting of a bend part and a foldback part bonded together. Cut edges of paper are disposed inwardly of the container away from the opening.

Abstract: The stethoscope comprises a membrane (2) sensor (1) connected by a tube (3) to ear-pieces (8 & 9). The tube (3) traverses a casing (10) containing an electrical unit connected by a cable (12) to an electrical sensor (11). The electrical unit is sensitive to a given frequency range and comprises an electro-acoustic emitter (19) supplying acoustic signals into conduit (3) which are obtained in response to signals coming from the sensor (11) according to a predetermined scheme.

Abstract: A flexible image acquisition and process system comprising photosensor means supplying analogue output signals for compensating and digital conversion means for supplying digital output signals representing the image; timing means for controlling scanning of the photosensor means; means for performing two-dimensional convolutions of data representing the images; and system operating phase control means.

Abstract: A new SAE 1541M alloy steel composition consisting essentially of 0.40-0.48% carbon, 1.35-1.61% maganese, 0.16-0.30% silicon, 0-0.23% chromium and the balance iron and other materials not affecting hardenability of the steel, especially adapted for forming axle shafts in the 1.70-2.05" diameter range to be used as drive axles with an axle load carrying capacity between 30,000 and 44,000 pounds.

Abstract: An electro-erosion machine for automatic completion of a cutout according to a closed trajectory or whose ends reach the edges of a part to be machined, or for completing a hollowing by means of piercing the part to be machined all the way through, as well as separating, at a certain predetermined machining moment, a clipping still retained by a narrow bridge of material, said machine being fitted with a numerical control device and at least one machining head, as well as with an auxiliary device, designed to break the bridge which retains the clipping, said clipping being of any shape, and to drop or eject said clipping, the separating being accomplished either by percussion or by exerting a pressure on it, or by shearing the bridge or exerting a torsion-tearing couple on it, or by submitting it to a thermal effect or by localized radiation of the bridge. It can also include an attachment for receiving and automatically evacuating the clipping expelled in this manner.

Abstract: A quick connect fluid coupling having a female part and a male part which is insertable into the female part to thereby establish the fluid connection between the coupling parts. A metal spring retainer in the female part engages an outwardly extending flange on the male part upon insertion into the female part to lock the coupling parts together. In addition, a shut off valve member is contained within the female part and is movable between a closed position and an open position. In the closed position, a seal ring in the female part sealingly engages a central cylindrical portion of the valve member and blocks fluid flow through the female part. Conversely, upon insertion of the male part into the female part, the male part moves the valve member to its open position and enables fluid flow through the fluid coupling parts. Simultaneously, the seal ring engages the outer periphery of the male part and fluidly seals the male and female parts together.

Abstract: A pressure sensing device constructed of a high molecular conductor kept in contact at all times with at least one pair of electrodes in a circuit and wherein the resistance of the conductor is sensitive to external forces oppositely applied by an actuator and a spring. Changing of the relative value of the forces changes the conductor resistance thus changing the circuit resistance.

Abstract: A collapsible sign includes a web supported by a collapsible frame. The collapsible frame includes two vertical legs and a cross member releasably secured to the tops of the legs. Casings are formed along three edges of the rectangular web and enclose the framing members. The cross member is secured to the top of the legs using a resilient tubular connector adapted to slide over and tightly engage the ends of the legs and cross member. A method for erecting a collapsible sign is also disclosed. When disassembled, the sign may be collapsed or rolled into a compact cylindrical package.

Abstract: A method of sealing a joint between two adjacent members comprises the steps of forming a gap between the members to be sealed and then introducing a bead of resilient solid material into the gap. The bead is subsequently treated to render it temporarily plastic or fluid so as to cause it to adhere to the facing edges of the members. This treatment can best be effected using a hot air blower. The bottom of the bead may be provided with a non-adhesive strip to prevent adhesion to the bottom of the gap, or the process may be performed in such a way that the bottom portion of the bead is not fused so that it does not adhere to the bottom of the gap.

Abstract: The present invention provides a method for removing dental decay and carious lesions from human teeth. The method of the present comprises the steps of aiming a pulsed laser so that its output impinges upon the decay and thereafter repeatedly activating the laser in pulse mode until the decay is eradicated from the tooth.

Abstract: A turbocharged, compounded cycle ducted fan engine system includes a conventional internal combustion engine drivingly connected to a fan enclosed in a duct. The fan provides propulsive thrust by accelerating air through the duct and out an exhaust nozzle. A turbocharger is disposed in the duct and out an exhaust nozzle. A turbocharger is disposed in the duct and receives a portion of the air compressed by the fan. The turbocharger compressor further pressurizes the air and directs it to the internal combustion engine where it is burned and exits as exhaust gas to drive the turbine. A power turbine also driven by exhaust gas is also drivingly connected through the engine to the fan to provide additional power. The size and weight of the turbocharger are reduced since the compressor's work is partially achieved by the compression effect of the fan. The total propulsive thrust includes the fan generated thrust which bypasses the turbocharger and the thrust of exhaust gases exiting the turbine.

Abstract: An escape device in accordance with the present invention includes an escape opening through the outside wall of a building at second and higher floor level, such opening being tall enough to allow a person to walk through it. A ladder, comprised of at least two sections, is pivoted to structure in the opening and is extendable to reach ground level outside the building. The ladder is stowed in the escape opening and ready for instant use in an emergency.

Abstract: A system of packaging provides two or more interconnected containers A, B, C in which articles are retained and the containers can be separated from one another to gain access to the articles.The packaging is assembled from elements each including a male and female tubular member 10 and 11 interconnected by frangible connecting means 22. Male members are engaged with female members to assemble a chain of containers which pivot relative to one another.Separation of the connecting means to release a container enables the members 10 and 11 to be twisted relative to one another to gain access to the article.

Abstract: The device has a case (1) which has a wire guide (2) and a chamber (4) filled with machining liquid which is brought there under pressure by a pipe (7). A nozzle (5) in the shape of a truncated cone fits in the case and closes the chamber (4) in its normal working position by supporting its periphery on the flange (6) provided around the case (1), under the action of the pressure exerted by the dielectric liquid and if necessary by a return spring (8). The thrust exerted on the nozzle by an obstacle (10) during a lateral collision tilts the nozzle without damaging it and it causes at L an escape of liquid which causes the pressure to drop in the chamber (4). A transducer (13) signals the drop in pressure following the collision to the operator and/or to a control system of the erosion machine.

Abstract: Described is a lighting arrangement for typewriters or printers, which is arranged on a light shade member (4, 14) above the printing or typing mechanism well. For that purpose a fluorescent tube (6) may be disposed in a separate tube (7) at the front edge of the light shade member (4) or it may be integrated into a thickened portion. A light exit window (8) is so disposed as to provide for dazzle-free lighting of the material being typed.