Abstract: An apparatus for pivoting a boom arm in a horizontal plane and for locking the boom arm in a fixed position on one side or another of a moving vehicle. The apparatus comprises a rocker arm with a locking mechanism at each end to engage and lock the boom arm in position in its fully rotated position at either side of the vehicle. The rocker arm is operatively connected to a hydraulic cylinder to pivot the rocker arm in a vertical plane to disengage the locking mechanism from the boom arm. A hydraulic motor has a rotating shaft connected to the boom arm to effect rotation of the boom arm from one side of the vehicle to the other.

Abstract: A desulphurization apparatus and method for natural gas in which red iron oxide is reacted with the sulphur compounds found in natural gas to remove these compounds from the gas. The treating solution is then recycled to regenerate the red iron oxide solution with elemental sulphur formed as a byproduct for removal.

Abstract: An apparatus for dispensing fluids from a bottle comprising a housing having a bore extending through the housing and a connector for releasably securing the housing to the mouth of a bottle containing fluid. A spool received within the bore of the housing is selectively positionable in a first, closed position and in a second, open position. The spool is provided with passageways therethrough for passage of air and the housing is provided with an inlet port, spout, and an annular groove for passage of fluids therethrough. In the second, open position fluid flows through the passageways and the annular groove of the spool out of bottle, and air flows through the passageways and the annular recess of the bore into the bottle.

Abstract: A high frequency oscillating ventilator. A flow of gas is conducted from a gas source to a high frequency oscillator. The high frequency oscillator comprises a housing including a magnet and having a diaphragmatically sealed piston mounted therein, an inlet connecting the space within the housing on the first side of the diaphragm to the gas conducting means, and a coil mounted to the first side of the diaphragm. Circuitry is provided which is operable to reverse the polarity of the flow of the current in the coil, thereby causing the diaphragm to move back and forth within the housing. A tube connecting the space on the second side of the diaphragm to the gas source and the patient's airway is provided. Also disclosed is a method of ventilating a patient with the high frequency oscillating ventilator, and a double lumen endotracheal tube for use in connection therewith.

Abstract: The invention is a throw and catch game in which the projectile is covered with a Velcro.TM. material and the receivers for catching the projectile are placed on the elbows or knees of a person so that the projectile will stick to the receivers when they are in contact.

Abstract: Method and composition for preserving fibrous materials. A urethane and thinning agent are mixed, and a fibrous material is contacted with the mixture and dried. An anti-oxidant, thinning agent or drier may optionally be mixed with the urethane and thinning agent. Extenders, plasticizers and ultraviolet light absorbers may also be used to advantage in some applications. The method and composition have particular application for use as a preservative for fishing and shrimping nets, uralkyd resins being the preferred urethane for this use.

Abstract: A method of determining the orientation of a surveying instrument in a borehole from measurements of the earth's gravitational and magnetic fields wherein the azimuth angle is calculated directly without correcting an apparent azimuth. Those measurements are used to calculate the borehole axial magnetic component at each orientation of the surveying instrument in the borehole, and the borehole axial magnetic component is used, along with those measurements, to directly calculate the proper azimuth angle. In a preferred embodiment, measurements are taken at a plurality of orientations in the borehole and the borehole axial magnetic component is calculated in simultaneous equations and then compared to insure the accuracy of the azimuth computation at each orientation. The orientations are preferably non-colinear.

Abstract: Method and apparatus for applying a flow of insulating material such as silicone to predetermined locations on printed circuit boards to avoid damaging the components on the circuit boards, such as solenoids and buzzers, whose functions will be impaired by the application of such material thereto. The apparatus is comprised of a pump which delivers a flow of insulating material to a manifold, the manifold having a plurality of lengths of flexible tubing attached thereto which serve as nozzles for dispensing the flow of insulating material. A printed circuit board is mounted on a conveyor and the conveyor is advanced until the printed circuit board is under the manifold, at which time the manifold is lowered to place the nozzles in close proximity to the printed circuit board so that the flow of insulating material will be directed to predetermined locations on the printed circuit board. The flexible nozzles are selectively positioned to direct the flow to those predetermined locations.

Abstract: A high-quality, cloth visor which does not completely encircle the head and a method for assembling the same. All seams are hidden with no exposed edges of cloth on the exterior of the visor that can be snagged or unraveled.

Abstract: Apparatus and method for recovering metal from a metal-containing solution. The apparatus is comprised of a case containing an anode and a cathode in fixed, spaced relationship relative to each other, and a power supply operable to apply a voltage across the anode and cathode. The increase in voltage between said anode and cathode is continually monitored and compared to a reference voltage until the increase exceeds the reference voltage, at which point a solenoid valve is energized to open a drain and drain the metal-containing solution from the case. A pump is provided to constantly circulate the metal-containing solution from top to bottom in the case while the voltage is applied between the anode and cathode to mix the solution, facilitating the plating of the metal. Also provided is a hollow, spiral anode, the solution being circulated through the hollow anode and out through the walls of the anode toward the cathode.

Abstract: An oscillating hospital bed having an oscillating frame means for oscillating about a longitudinally extending axis and a patient support means mounted on the oscillating frame means for controlled pivoting of the patient support means about a transverse axis. Pack means are provided on the patient supporting portion to hold a patient in place and the oscillating frame means is cantilevered from a base support means. The pack means is adjustable to support the patient during oscillation of the oscillating frame.

Abstract: A foldable scaffold which can be erected to the side of a scaffold anchor having a horizontal member pivotally mounted at one end to the scaffold anchor and a support member pivotally mounted at one end to the horizontal member and the other end releasably mounted on the support anchor. A pin is provided for selectively holding the horizontal member in a first horizontal position and for releasing the horizontal member from that first horizontal position to allow the horizontal member and the support member to pivot to a second position in which the horizontal and support members are closely approximated with the scaffold anchor. If, for instance, the scaffold anchor is a gangform, the disassembly, storage, transport and re-assembly of the gangform is greatly facilitated by the fact that the scaffold is folded and re-erected by merely inserting two pins into the horizontal member and support member.

Abstract: Apparatus for injecting tubing into a well having a storage reel which traverses in a direction substantially perpendicular to the direction of movement of the tubing as the tubing is being pulled off of or wound back onto the tubing storage means. The unit may also be provided with a platform on which the tubing injector reel may be elevated to allow the operation of the apparatus with elevated well heads. Also provided is a method of retrieving a length of coil tubing and storing the coil tubing on a storage reel.

Abstract: A signalling device for weight lifters performing exercises involving bending of the knees. The signalling device is provided with mercury switch for sensing deviation of the axis of the portion of the leg to which the device is attached and a buzzer or other signalling device which signals the lifter when that portion of the leg has deviated from the vertical by a preselected amount. The amount of deviation from the vertical required to activate the signalling device may be varied by an optional angle adjustment. The signalling device allows a weight lifter to exercise properly, but effectively, without risking injury.

Abstract: A cruise control system of the type utilizing an electrically operated DC servo motor to move an element that varies the fuel-air mixture of a motor vehicle engine to control the speed of the motor vehicle is provided with apparatus for detecting the limit positions of the element and to modify the electric current supplied to the motor accordingly.

Abstract: A therapeutic treatment table having a lifting mechanism to allow lowering of the therapeutic treatment table close to the ground support surface and having a releasable connecting means to automatically connect or release the oscillating means from the therapeutic treatment table and an adjusting means to vary the degree of oscillation of the therapeutic treatment table.