Abstract: A pulling tool comprisesa brace having a base and two legs,a pulling means including a threaded shaft extending through an untreaded passage in the base, and a first nut screwed onto the shaft on the side of the brace opposite from the legs, a second nut screwed onto the shaft on the other side of the brace, and two hooks pivotally connected to the second nut extending between the legs, andspreader means comprising wedging surfaces on the stems of the hooks, a conical tip on the end of the shaft adjacent thereto, and a rectangular head on the other end of the shaft,the legs being long enough to accommodate the hooks and second nut and providing access thereto between the legs.

Abstract: An antenna-supporting arm is hingedly connected to a small semi-permanently attachable plate to be positioned in the usual rain channel underlying the margin of the hood of the engine compartment (or the lid of the trunk) of a motor vehicle. When the hood or lid is temporarily raised, the supporting arm and the antenna mounted thereon are swingable between an exposed normal use position, and a completely concealed under-cover position for preventing theft or vandalism. A support-grounding pigtail lead bridges the hinge and is electrically connectable to the rain channel by one of the bolts fastening the small plate therein.

Abstract: A roller reamer body is provided with junk receiving pockets that are downward extensions of the body cavities in which the rollers and their shaft mounting blocks are disposed. The slots have upwardly slidably openable or removable outside wall panels so that junk can be dumped from the slots while the reamer is still vertical in the drill string, making it unnecessary to disconnect the reamer to dump the junk.

Abstract: A roller on reamer's rollers are rotatably mounted on shafts whose ends are supported by blocks inserted in the reamer body. One end of each shaft is welded, pinned, or otherwise nonrotatably anchored to its mounting block. Each block makes an interference fit with the body socket in which it is disposed. The blocks are stepped or tapered for quick release. Access openings to the backs of the blocks facilitates knockout. Knockout of the stepped blocks is achieved by wedge means.Drilling mud may have access to contacting surfaces of rollers and shafts to lubricate same. Protective seal means may be provided between each roller and shaft at the upper ends thereof so that the mud must flow upwardly to reach the space between shaft and roller and dense solids will be excluded by gravity. Grease lubrication may be provided, e.g. in conjunction with roller shafts mounted in stepped blocks, the rollers being sealed to the shafts at both ends.

Abstract: An alloy steel tool joint connector is friction welded to one end of a seamless steel drill pipe tube. The weld area cools in the air as the pipe moves to a first tempering station. The weld area is brittle and too hard to machine.When the weld is below a temperature corresponding to 90% transformation from austenite to martensite, an infrared radiation responsive control viewing the weld causes an induction heating coil to be moved axially onto the end of the pipe. Energization of the coil reheats the weld area to a temperature below austenitizing but sufficient to temper the steel, and an infrared radiation responsive control viewing the pipe radially through a radial view passage in the coil deenergizes the induction heating coil and causes the coil to be withdrawn from the end of the pipe. The friction weld is then machined off inside and outside.The pipe is then moved to a rehardening station at which the weld area is heated to austenitize the steel following which it is fluid quenched to reharden it.

Abstract: A reboiler for dehydrating di- or tri- ethylene glycol comprises a cylindrical, horizontal axis tank having a ceramic packed still column rising from its top near one end and a single U shaped fire tube extending longitudinally from the front end of the tank interiorly thereof toward its back end. Wet glycol is admitted to the base of the still column above a half tray and overflows into a catch pipe which drains into the front end of the tank. Dry glycol is taken off through an outlet at the bottom rear of the tank. Dry gas is admitted to the reboiler through a sparging pipe extending longitudinally of the tank from near the back end of the fire tube and then over the outlet to near the back end of the tank. A box shaped trough extending under and about the pipe separates the glycol adjacent the sparging pipe from an in-tank reservoir located below the pipe formed by a divider plate located near the front end of the pipe.

Abstract: A steel wear belt having a prepared inner surface with an inner diameter large enough to pass over the weld upset on one end of a drill pipe tube but too small to pass over the tool joints is installed about the pipe over a prepared outer peripheral surface thereof. The belt is installed prior to one or both tool joints being welded to the tube. The belt is secured to the tube by injection molding a mounting layer of high polymer material, e.g. plastics or elastomer, preferably self bonding and thermo-set, between the prepared surfaces. There is employed a diametrally split mold disposed about the belt and wedged together by tapered end rings. The rings have inner diameters large enough so they can be removed by passing over the tool joints if they are attached to the ends of the tube before securement of the wear belt. The pipe is plastics coated internally from tool joint to tool joint. The plastics of the internal coating and the polymer of the wear belt mounting are cured.

Abstract: Shrimp are introduced individually onto a rotating disk inward of an adjustable gauging strip fixed above the disk's surface. Shrimp passing under the gauging strip under the influence of centrifugal force and are channeled to a first output chute. Those retained by the strip exit the disk through a second output chute. Disks may be ganged vertically to provide a plurality of sorted grades or in parallel for increased throughput.

Abstract: A seal between an apertured body and a rod extending through the aperture comprises a box in the body around the aperture in which is disposed a packing assembly including one or more packing rings each sandwiched between a pair of adapter rings, the packing assembly being compressed in the box by a compression ring disposed about the rod and secured to the body. The packing rings are made of fabric reinforced elastomers, homogenous elastomers or similar conventional seal materials. The adapter rings are made of hard metal or plastics material. The packing rings have one or more portions of reduced axial thickness which receive mating projections of the adapter rings. Prior to compression, there is space between the adapter rings and packing rings adjacent the thicker portions of the packing rings, into which space the packing ring material can flow when compressed.

Abstract: This invention provides a process for the control of broadleaf weeds and grasses. The process comprises applying to an area containing broadleaf weeds and grasses a composition comprising a mixture of about 1 to 2 parts by weight of cacodylic acid or salts thereof and about 2 to 4 parts by weight of methane arsonic acid or salts thereof.

Abstract: An antenna mount is disclosed. It includes a hinge connected to a first metal bracket which is adapted to be fixedly attached adjacent to the edge of a trunk in the interior space of an automotive trunk. There is a movable mounting bracket on the hinge which supports an L-shaped arm having a lengthwise slot. The antenna coaxial cable is positioned in the slot, and the cable and arm protrude through the trunk opening even when the trunk lid is closed. The L-shaped arm supports the antenna base on the exterior when erected. The L-shaped arm can be moved by pivoting around the hinge to a recessed location in the trunk thereby retracting the antenna and enabling it to be closed out of sight to avoid theft of the antenna.

Abstract: Two fluid passages are connected through flow restrictors to a fluid supply. Downstream of the restrictors the fluid supply has a drooping pressure-load characteristic. Venting means for the fluid passages comprises vent openings therein downstream of the restrictors and variable position obstructor means cooperating with vent openings to vary venting and thereby vary fluid pressures in the fluid passages.Fluid conduits connect these pressure outputs to a fluid to mechanical translator comprising a double acting piston moving in a cylinder whose opposite ends are connected to the fluid conduits. The piston and cylinder form the responder of the system, which may be adjacent the mechanical to fluidic translator and form part of the transmitter.A feed back means controlled by the position of the responder piston and/or the load varies pressure in the fluid conduits by variably venting same.

Abstract: A tool joint is friction welded to one end of a tube. The weld area cools in air as the pipe moves to a tempering station.When the weld is below a temperature corresponding to 90% transformation from austenite to martensite, an infrared radiation responsive control viewing the weld causes an induction heating coil to be moved axially onto the end of the pipe to reheat the weld area to a temperature below austenitizing but sufficient to temper the steel, and an infrared radiation responsive control viewing the pipe radially through a radial view passage in the coil deenergizes the coil and causes it to be withdrawn. The weld is then machined off inside and outside. The weld area is next heated to austenitize the steel, following which it is fluid quenched.At a second tempering station the pipe end is moved axially into an induction heating coil to reheat the weld area.

Abstract: A steel wear belt having a prepared inner surface with an inner diameter large enough to pass over the weld upset on one end of a drill pipe tube but too small to pass over the tool joints is installed about the pipe over a prepared outer peripheral surface thereof. Preferably the belt outer diameter is equal to or less than that of the tool joints. The belt is installed prior to one or both tool joints being welded to the tube. The belt is secured to the tube by a mounting layer of high polymer material, e.g. plastics or elastomer, preferably self-bonding and thermo-set, between the prepared surfaces. The mounting layer may have a thickness in the range of 1/16 to 1/4 inch and an elastic modulus of not over 5% of that of steel, and an elastic shear strength of, e.g. 500 to 3000 psi, and be stable up to 250 to 300 deg. F.

Abstract: A vibration isolator includes telescoping tubular mandrel and barrel members between which torque is transmitted by an internally splined urethane bushing affixed to the cylindrical interior of the steel barrel and a urethane layer over the splined outer surface of the steel mandrel. Axial loads are transmitted in both directions between shoulders on the mandrel and barrel through two annular urethane members, one for each direction, disposed in annular pockets between the mandrel and barrel, which have greater radial thickness than do the rings, allowing room for deformation of the rings by axial loading. A replaceable sliding seal between the upper end of the mandrel and the barrel retains drilling fluid passing through the isolator. A sliding bearing between the mandrel and the lower end of the barrel cooperate with the seal at the upper end of the mandrel to take bending moments.The urethane annuluses are shaped, e.g.

Abstract: Two fluid passages are connected through flow restrictors to a fluid supply. Downstream of the restrictors the fluid supply has a drooping pressure-load characteristic. Venting means for the fluid passages comprises vent openings therein downstream of the restrictors and variable position obstructor means cooperating with vent openings to vary the venting and thereby vary fluid pressures in the fluid passages.Fluid conduits connect these pressure outputs to a piston moving in a cylinder whose opposite ends are connected to the fluid conduits. The piston and cylinder form the responder of the system. A feed back means controlled by the position of the responder piston and/or the load varies pressure in the fluid conduits by variably venting same.The feedback means includes variable cross-section surface pasages, e.g. sloping grooves, in the responder piston or fluidic load piston or both. Alternatively or additionally a separate feedback piston may be connected to the receiver or load piston.

Abstract: An improved alternating current prime mover control system and method for, for example, the control of a valve position or other physical variable whose state can be sensed or calculated wherein the state of the physical variable is compared with a reference variable to generate, in conjunction with a waveform generator, a fixed amplitude signal that has variable time duration which feeds a part of the control system that drives the alternating current prime mover source in more than one direction.

Abstract: An oil well pipe suspension apparatus including a wellhead having a pipe hanger supported therein and a christmas tree supported thereon, a frusto-conical metal gasket providing a metal-to-metal seal between the hanger and the wellhead, and an "X" cross section resilient metal gasket providing a metal-to-metal seal between the hanger and the christmas tree.

Abstract: An indicator device for providing a high-intensity visual indication of an occurrence comprises a flash tube which is fed with a high voltage from a capacitor, the capacitor being charged by means energized from an intrinsically safe supply. Trigger pulses are applied to the flash tube in response to the occurrence, so that the tube emits flashes in response thereto. An annunciator can comprise a plurality of the devices housed in a single unit and fed from a single power supply.

Abstract: The eccentric journals of a tandem roller stabilizer are azimuthally positioned relative to each other by a single thread on the mandrel onto which the journals of the successive roller assemblies are screwed, the journal of each roller assembly having a like thread and together with its end plates having a length adapted to encompass a portion of the mandrel thread having a length of (n)(360) + x degrees where n is an integer and x is the desired azimuthal displacement of each roller assembly journal from the adjacent journals. Preferably x is equal to (360)/(r) degrees where r is the number of roller assemblies on the stabilizer, so that the points of stabilizer contact with the bore hole are spaced uniformly all around the stabilizer axis. The bearings supporting the rollers on the journals may be bushed only on the loaded side and be unsealed, being cooled with air bled from the stabilizer mandrel and exhausted through the bearings. Other forms of bearings can be used, e.g.