Abstract: A self-contained air conditioning unit for headwear of substantially any type comprising an electric motor and fan removably secured within a lightweight housing, said motor being secured to an air inlet screen removably securable to the headwear, a power supply holder means supporting suitable power supply means electrically connected with the motor, a switch operably connected with the power supply and motor for selective actuation of the motor and fan, and said fan being selectively operably by the motor for blowing warm or cool air onto the wearer of the headwear.

Abstract: A portable tester for testing tape drive units, which provides means for generating a selective repetitive composite data pattern, which includes a direct pattern and a reverse pattern which is an inverted image of the direct pattern, and writing the composite pattern on tape. Means are provided for reading the composite pattern off the tape and providing a read signal which is the result of amplifying and differentiating the signal from the read head. Means are provided for applying this read signal to an oscilloscope in a conventional manner, and to trigger the sweep of the oscilloscope at a selected time in advance of a critical portion of the read signal, for each of the direct and reverse patterns. Thus, an analog pattern signal will be displayed on the oscilloscope screen for the critical parts of both the direct and reverse portions of the pattern, for tape movement both direct and reverse.

Abstract: In a piston actuated valve, means for determining the position of the operating piston by means of at least one insulated contact probe which is inserted through the wall of the cylinder. Two or more can be used, one in each extreme position of the piston. As the piston moves into its extreme position, contact is made with the probe and a suitable signal is sent, indicating that the piston is in that extreme position.

Abstract: A heavy duty truck liner for working on a truck, or large trailer, where a plurality of pulling and pushing operations are required to straighten a frame, etc. A plurality of tracks in the form of a rectangle surrounding the normal position of the truck and body, is prepared and set into the concrete floor of the work room. A large inverted U-frame is set on rollers which are adapted to travel longitudinally along the long sides of the track. The frame is large enough to completely encircle the truck and body can be moved readily along the track so as to be opposite any point on the side walls of the body where pulling or pushing operations are required. A folding platform is attached in a slidable manner to the sidewalls of the frame so as to position the platform at any level on either side of the body. Hydraulic locking means are provided to lock the frame in any selected position so as to withstand any pulling and pushing forces required.

Abstract: A dental handpiece comprising a power source, plugger means, and a disposable cartridge assembly removably engagable with the power source, said plugger means being carried by the power source and selectively movable with respect to the cartridge for passing therethrough in a reciprocal movement, said cartridge including a housing preloaded with selected quantities of mercury and silver, or the like, in separate sealed compartments, and means extending through the housing and engagable with the power source for longitudinal and rotatable movement with respect to the housing, said longitudinal movement causing a combining of the initially separated mercury and silver components, said rotatable movement causing both mixing of the components to produce amalgam for denture fillings and discharging of said amalgam from the housing for engagement thereof by the plugger means, and said plugger means being selectively reciprocal through the cartridge for implanting multiple charges of the amalgam in a tooth cavity, o

Abstract: Space saving and organizing means particularly designed and constructed for use with refrigerators, freezers, freezer compartments, and the like, and comprising support means having a plurality of horizontally extending slide rods adjustably secured thereto and movable between a contracted and extended position with respect to the support means, shelf means removably supported by said slide rods and slidable independently with respect thereto in one horizontal movement for providing access to a portion of the shelf and movable simultaneously therewith in a second horizontal movement to a cantilever position for providing ready access to the entire upper surface of the shelf to facilitate access to all of the contents disposed on the shelf means.

Abstract: A method and means for using nitrogen exhaust gases or gaseous mixtures of combustible products for reduction of oxygen in drilling fluids during the drilling of well bores and which comprises utilizing nitrogen from normally waste exhaust gases or the like, injecting the nitrogen and other gases present into the usual drilling muds for replacing the oxygen contents of the drilling muds with the nitrogen gas, whereby corrosive action of the drilling muds is greatly reduced or substantially eliminated.

Abstract: A football drying machine having a frame and wheels so that it may be moved about, a vertical axis supported at its lower end of the frame, a carousel affixed about the vertical axis, the carousel having a number of radial compartments each dimensioned to receive a football, a shroud covering the carousel and having an opening in the top so that as the carousel is rotated the opening aligns with the compartments for placing footballs into or taking them out of the carousel, a gas burner supplied by a gas tank carried on the frame, a fan for moving heated air from the gas burner, a plenum chamber connecting the burner and fan to direct heated air into the bottom of the carousel and within the shroud to heat footballs positioned in the carousel, and a handle affixed to the upper end of the shaft for rotation of the carousel.

Abstract: An apparatus for grinding cylindrical lenses, comprising a frame supporting a motor-driven apparatus in which a vertical driving pin is adapted to be moved parallel to itself, in complex motion, which is substantially non-repetitive. Three separate drive means are provided for producing eccentric motion of selected amplitude, and individually controllable relative phase angle with each other. The driving pin is connected with a universal joint, to a vertical post which is pivoted at its bottom end, and adapted for angular motion forward and backward and to each side, but does not have any component of rotary motion about its own axis. Arm means are provided attached to the post, for pressing a lens block holding a lens to be ground, against a stationary lap, so as to grind a cylindrical surface on the lens.

Abstract: This invention involves the method and apparatus for simultaneously placing a coating of a selected material on the outer surface of an extended cylindrical object such as a pipe or conduit, and holding the coating in position by wrapping the coating with a strip of thin film formed to a cylindrical contour and sealed with a longitudinal seam. This is accomplished in one mode by inserting the pipe through a tubular concentric mandrel, wrapping and sealing the plastic film against the mandrel and injecting the coating material through the annular space between the pipe and the mandrel and thus into the space between the pipe and the sealed plastic film. Using heat shrinkable plastic the film forms a tightly fitting cover for the pipe coating material.

Abstract: Apparatus for measurement, above the surface of the ground, of an electrical current flowing in a buried pipeline, comprises a pair of magnetic flux detectors oriented with their axes vertical, and spaced apart, in a frame, which is moved along the earth at a substantially constant elevation above the surface, with the plane through the two vertical detectors substantially perpendicular to the direction of the pipe. Means are provided, including a vertical core and coil centered on the frame, for indicating the position of the frame laterally with respect to the buried pipe. There is also a second core and coil displaced laterally from the first core and coil, for determining the depth of the pipe below the frame. When the frame is centered over the pipe and there is current in the pipe, flux will pass upwardly through a first flux detector core and downwardly through the second flux detector core.

Abstract: An improved hot stick and head therefor for removing a fuse holder from a line mounted fuse type disconnect switch in which the fuse holder is of the type having a tubular body in which the fuse is retained and having an eyelet extending radially outwardly near one end of the tubular body, including a pole adapted to be held in the hands of the user standing on the ground and of a length to reach up to the height at which fuse type disconnect switches are mounted.

Abstract: A dual steering system for vehicles, particularly for large and heavy off-highway vehicles, wherein a back-up steering system is provided for safety purposes. Dual hydraulic systems are provided and coordinated whereby in the event the primary steering system fails for any reason, the back-up steering system automatically assumes the entire steering operation, thus providing a safety feature for the vehicle.

Abstract: An improvement in a ratcheting socket wrench wherein an elongated shaft is journalled in the handle and is provided with a knob at the outer end of the handle. The shaft is also reciprocally disposed in the handle where in one position it can be rotated thereby rotating the drive stud for starting or removing loose bolts and the like and in a second position it may be rotated to engage the ratcheting device for drive in either direction.

Abstract: Apparatus for applying powdered coating materials to the outer periphery of objects, and particularly tubular objects, and which comprises a support frame structure for receiving the object therethrough and partially surrounding the object in spaced relation thereto, a supply chamber for receiving a supply of new powdered coating materials therein and in communication with fluidizer apparatus for directing the new powder thereto, gun batteries in communication with the fluidizer apparatus for directing the fluidized powder onto the outer periphery of the object simultaneously from opposite sides thereof, filtered chambers for collecting powder overspray and directing any accumulation of overspray into a reclaimed powder reservoir, said reclaimed powder reservoir being in communication with the fluidizer apparatus for adding the reclaimed powder thereto whereby reclaimed powder is directed to the outer periphery of the object.

Abstract: A power use peak load alarm system which is triggered by a specific combination of audio tones received by way of a fixed tuned AM or FM receiver located in the user's facility. The receiver is equipped with a filtering system to reduce the probability of false triggering. Upon receipt of the alarm signal, the alarm system goes into an alarm condition consisting of a visual alarm and an audio alarm. The visual alarm consists of a blinking alarm light while the audio alarm provides full output volume at the receiver for receipt of an alarm message or other audible alarm signal. The received alarm signal will initiate a timer circuit which will hold the receiver in an alarm condition for a preset time interval. During the alarm interval, certain relay contacts are made which may be connected to turn off non-essential electrical equipment or switch to a dual register/dual rate meter or both.

Abstract: An improved contour for logs which are to be assembled one on top of the other for producing walls, etc. for log cabins. The contour includes a pair of plain parallel surfaces, one on the top, and the other on the bottom of the log, as installed. In the preferred embodiment the top surface carries a pair of spaced parallel tongues of trapezoidal cross-section, and the bottom surface carries substantially a mirror image, in the form of two grooves which are adapted to fit over the tongues on the log immediately adjacent below. On either side of the tongues and grooves are two shelves which are approximately horizontal. However, on the top surface they slope at a small angle A downwardly from the horizontal, to their lips at the intersection with the outer contour of the log.

Abstract: A system for maintaining well bore fluid level to increase oil well production. The fluid level is monitored by a down hole pressure sensing device which relays the fluid level information to the surface by acoustical transmissions where, based on the information received, the speed of the pumping is varied to maintain an optimum fluid level.

Abstract: Apparatus and method for manufacturing a wire wound flexible torque transmission cable. The apparatus includes multiple wire guides to facilitate the winding of a plurality of preformed spring or wire coil members onto a mandrel or a previously wrapped layer. The apparatus further includes a means for synchronously moving the wrapped mandrel longitudinally and rotatingly with respect to the wire guide for accomplishing the winding process. The cable winding process generally includes the steps of winding a plurality of wires to form a single layer, each wire being in the form of a preformed cylindrical helical coil stock. Multiple layers of wire are similarly wound on the next previous layer, the windings normally being in a reverse direction from the next previous layer.

Abstract: An apparatus particularly adaptable for recording pressure of subterranean formations in a downhole pressure gauge by providing a variable capacitance in response to changes in ambient pressure. The apparatus comprising a closed tubular housing having a deformable conductive end with an interior and exterior surface, the deformable end forming a diaphragm subject to the pressure in which the housing is positioned, increased pressure deflecting the deformable end inwardly. The deformable end has an axial boss portion extending inwardly from the inner surface. A stator having a central hub is positioned within the housing, the hub having an opening therein which receives the boss portion.