Abstract: A metal processing system wherein a material removing means such as a shear blade is operative in conjunction with the transverse cutting action of a torch for removing from the cut line produced by the torch residual material resulting from the cutting action of the torch in a manner that the residual material is removed progressively along the transverse cut line in coordinated following relationship to the producing of the transverse cut line by the torch.

Abstract: A sealing arrangement for sealing a stationary member to a rotatable member wherein a neck of the rotatable member is coaxially received in a sleeve secured for rotation therewith and the sleeve is journaled for rotation in the stationary member. An extension ring is annularly secured to one end of the sleeve with a normally flat annular thrower seal of elastomeric material annularly engaged between this extension ring and the one end of the sleeve to provide a seal therebetween with inner and outer annular peripheral portions of the thrower seal radially protruding. The inner peripheral portion of the thrower seal annularly engages the neck of the rotatable member under elastic deformation to provide an annular static seal and a peripheral side face of the outer peripheral portion of the thrower seal annularly engages an annular seal rubbing surface of the stationary member under elastic deformation to provide an annular rubbing seal therebetween.

Abstract: Apparatus for tapping a wall of a metallurgical vessel wherein a drilling machine is carried by a mounting means for reversible displacement therealong on a track. The mounting means is suspended from a laterally extending boom which swings on a stationary support, and the boom is swung by a mechanism for selectively displacing the mounting means with its drill into an operative position for drilling a tap hole in a metallurgical vessel and an inoperative position. In one embodiment of the invention, the mounting means together with its guide track for carrying the drilling machine is pivotally connected to the boom and guide means are provided to guide the pivotal swinging of the mounting means relative to the boom to guide the mounting means over a predetermined path of movement when the boom is swinging.

Abstract: A gun support and more particularly a multipurpose sling-type gun support for use in supporting an elongated hand-held firearm.

Abstract: In an instrument with a sensor for gas analysis which, based on the principle underlying its measurement, indicates the partial pressure of the gas constituent to be measured, the indication of the change in the partial pressure of the gas constituent is affected by changes in the atmospheric pressure. Such instruments must be calibrated at mean sea level and adjusted for changes in height at the measuring site.In order to eliminate the need for adjustment or recalibration, there is included in the instrument a pressure-sensitive module to compensate for the effects of the atmospheric pressure on the sensor. The module compensates the measured value directly or by means of a microprocessor with regard to the prevailing pressure conditions.

Abstract: A hypodermic syringe with a self-sterilizing needle, wherein a capsule containing sterilizing fluid and having perforative ends of flexible material with elastic memory tendencies for self sealing after axial penetration by the forward end of the needle is coaxially and slidably received over the forward end of the needle with the forward exposed end of the needle slidably penetrating one end of the capsule in perforation for sterilization of the needle. A guide is provided for the capsule, and guides the capsule for axial movement on the needle when axial force is applied against the outer end of the capsule, such as by engagement against the hide of an animal, to cause the exposed end of the needle to penetrate the outer end of the capsule for hypodermic penetration.

Abstract: A clevis end connecting rod such as truck lever connection rods, brake cylinder push rods, brake rod ends, etc., utilized on railroad cars, is manufactured by positioning an outside side surface of a metal eye member, having a bore therethrough, transversely against one end of a metal rod, and then the metal rod end is circumferentially welded to the eye member side surface with a good concentric and coaxial uniform weld. Thereafter, the eye member is transversely cut in half, thereby providing a cutting gap which is in line with the axis of the rod. Then this same end of the rod is axially cut to a predetermined depth to provide a bifurcated rod end. The bifurcation is aligned with the cutting gap between the eye member halves, and then the bifurcated rod end is spread and re-shaped to form a clevis end with the bores of the eye member halves being positioned in spaced alignment to receive a clevis pin, thereby eliminating expensive prior art hot forging techniques.

Abstract: A pivot hinge for supporting the top end of a door has a door closing device which is readily attached to, and removed from, the pivot hinge. A pivot shaft is fixed by a screw to a seat plate to be secured to a door frame and a door supporting plate is pivoted on the lower end portion of the pivot shaft. The door closing device includes a housing, an annular member contained in the housing and a coil spring contained in the housing. Opposite ends of the coil spring are connected to the housing and the annular member. In attaching the door closing device to the pivot hinge, the top end of the housing is non-rotatably connected to the door supporting plate by engagement of axial grooves and axial ridges formed on both of them, while the annular member is non-rotatably connected to the lower end portion of the pivot shaft by engagement of axial grooves and axial ridges formed on both of them, so that the coil spring is twisted by door opening to generate door closing torque.

Abstract: A needlepoint sheet of flexible plastic material having a plurality of aligned rows of perforations for receiving thread-like material such as yarn therethrough. The sheet has at least one flat face which has pattern indicia imprinted directly on the flat face so that one may needlepoint a design in accordance with the pattern indicia or in accordance with instructions utilized in combination with the pattern indicia. The pattern indicia may take on the form of a pattern needlepoint design on the flat surface of the needlepoint sheet or it may consist of indicia on the border of the flat face at spaced intervals to assist one in locating specific perforations in the sheet for sewing a needlepoint design thereon. The side walls of each of the perforations are preferably in the form of a pyramid frustrum.

Abstract: In an indirect extrusion press provided with a gate lock and a rearwardly extending indirect-extrusion stem, the stem normally extends through a die slide with the rear end of the stem engaged by a loose die disposed in the front end of a billet container behind the stem. After a ram has extruded a billet through the die and the gate lock has been released, the stem is moved forward clear of the die slide as the die is pushed into the slide, which is then moved transversely of the extrusion stem and out to the side of the gate lock housing for cleaning or replacement of the die.

Abstract: An overhead metal trolley rail has a head for supporting it, separated by a vertical web from a foot that projects from opposite sides of the web and has flat upper contact surfaces. Slidable along the rail is a trolley shoe formed from a block of electrical conducting material, the upper portion of which has a longitudinal trough in it receiving the foot of the rail. The lower portion of the trough is spaced from the rail, but the upper portion of the trough has longitudinal flanges projecting inwardly toward each other above the foot of the rail. The flanges have flat lower contact surfaces engaging flat against the flat contact surfaces of the rail and supporting the shoe, from which a power take-off wire extends.

Abstract: Compacted granular or stone columns are constructed in soil to increase the load-bearing capacities of the native soil. The upper portion of the compacted granular column is provided with a rigid central core such that vertical loads imposed on the composite column are transferred to a deeper level on the compacted column where the column operates more efficiently. A probe is centrally penetrated downwardly into the compacted granular column, and the resulting cavity is filled with cementitious grout to form a solid core after hardening. The grout may be injected into the cavity so formed in the compacted column at the bottom of the probe as the probe is being withdrawn in predetermined quantities metered in synchronization with the rate of withdrawal of the probe from the core cavity.

Abstract: A circuit arrangement for an apparatus for measuring and analyzing gases which emits a signal when a specified gas concentration is exceeded and which is capable of recalling the maximum value of gas concentration measured. A binary counter acted upon by an oscillator is connected to a digital-analog converter via a digital storage, and a digital-comparator compares the binary values of the counter output from the binary counter and the input to the digital-analog converter. An analog comparator receives the measured value input from a gas measuring device and the maximum value output from the digital-analog converter, and the digital storage is opened via a logic section when the voltage at the measured value input is greater than the voltage at the maximum value output and the digital storage also has equal signals at the input and output thereof.

Abstract: An original electromagnetic continuous wave which is broken up into discrete lengths to form intelligence such as Morse Code, is filtered to eliminate noise, static and other electrical interference to render a weak code signal audible even in the worst receiving conditions. The original broken-up electromagnetic code wave is converted into corresponding discrete lengths of direct current voltage signals through the use of a phase-locked loop circuit. This D.C. voltage signal is then utilized to activate an audio oscillator and thereby generate a new coded or broken-up audio wave completely free of noise and other interference, which corresponds to the original wave being filtered. This new wave is audibly produced over a speaker and simultaneously therewith, the original wave before filtering is also audibly produced over a speaker through a second channel. This permits accurate tuning of the weak signal through the second channel and undistorted reproduction through the filtering channel.

Abstract: Mounted in the upper part of an oil well drilling derrick are horizontal crown beams having end portions projecting beyond the opposite sides of the derrick. A fast line sheave and a dead line sheave are mounted on those beams near the opposite sides of the derrick, and a crown block is mounted on the beams between those sheaves. The sheaves and the crown block are adjustable along the beams. The fast line sheave is movable outwardly into an inactive position on the adjacent projecting end portions of the beams when the crown block is in a position suitable for supporting a fast line directly, and the dead line sheave is movable outwardly into an inactive position on the adjacent projecting portions of the beams when the crown block is in a position suitable for supporting a dead line directly. When both sheaves are in operating positions, the crown block can be placed in any desired location between them.

Abstract: A radio-frequency interference suppressing system for inside a permanent magnet field motor case includes a pair of commutator brushes, a pair of power input terminals electrically connected with the brushes, a capacitor electrically connected across the terminals, a pair of capacitors each electrically connected to a different one of the two terminals, and a grounding member electrically connected with the pair of capacitors for engaging the inside of the motor case.