Abstract: A face pillow for those persons who, whether by choice or necessity, sleep in a prone position. It consists basically of a pair of horizontally disposed cylinders of resilient material placed side-by-side on a bed or other flat surface, and a pair of straps extending around the two cylinders so that, in use position, these straps determine the width of a gap between the cylinders. The user lies with his face thrust into the pillow so that his cheeks contact the pair of cylinders, and in so doing pushes the cylinders apart. The user's nose and mouth are disposed in the gap, which affords him space for unimpeded access to fresh air. The pair of cylinders may be encased in a pair of fabric pillow slips for sanitation purposes, and the pair of straps may either completely surround both the cylinders and their pillow slips, or may, for each cylinder, enter through a top slit, extend halfway around the cylinder, and exit through a bottom slit.

Abstract: A connection for quickly mounting and removing wheels from a trailer, without removing or replacing lug nuts. The wheel assembly includes a non-rotating shaft or axle which serves as its journal. This journal is inserted and received snugly within a sleeve rigidly secured to the frame of the trailer, and pin and other connecting elements are added to prevent relative rotation and axial movement between journal and sleeve. Various embodiments are disclosed, including a simple pin dropped into aligned transverse openings in the two members and interfitting members on journal and sleeve which halt inward movement of the journal and its rotation, such as an axial pin and hole, radial slot and key, and touching flat surfaces on the two members.

Abstract: A resilient clip in three integrally joined sections: a central or web section centered on a z-axis, and two extensions from the web extending along x- and y-axes. Each section or portion may be described as a split sleeve and has a generally cylindrical opening therethrough, respectively centered on the same three axes. These openings are contoured and disposed to snugly receive a reinforcing bar or rod and a pair of corner legs of a generally rectangular stirrup, a piece of heavy wire bent into a rectangular shape and receiving reinforcing bars at its four corners, holding them in such positions to maintain the planned spacing between rebars. Each of the central openings through the three parts is joined to the outside by a lateral slit defined by a pair of lips that are forced apart by pushing the clip onto the steel member.

Abstract: An exerciser primarily for chest muscles activated by pushing the handle ends of the device toward one another with the forearms, the hands playing an insignificant role in the use of the exerciser. It consists basically of a pair of levers rotatably secured to each other by a pivot pin joining the two levers near one pair of their ends, and elastic bands biasing the device in an open stance attitude, with the levers spread apart. Each elastic band has its pair of ends connected to the pair of levers, one end to the distal portion of a lever and the other end to the proximal or handle portion of the other lever. Forearm activation is provided for by mounting a pair of concave forearm cups near the handle ends of the levers, these cups being mounted adjacent the handle ends on the outside of the levers, with the concavity facing outward in each case. The user grips the exerciser with her forearms (in vertical position) and pushes her forearms together in the manner of closing the jaws of a vise.

Abstract: Disclosed is a hand powered, crank operated structure whose principal moving component is a horizontal and generally cylindrical barrel having built thereon a pair of stub loading extending tubes from one side of the barrel. These stub tubes are disported in parallel and side-by-side fashion, and one of them, for instance the dough tube, lies to the left, closer to the discharge end of the barrel than the other, the meat or filler tube. The barrel is allowed to rest on the horizontal base of the machine's framework with its solid end, opposed to the discharge end, supported by and extending through an end wall of the framework and connected to a hand lever.

Abstract: The components for operation of the invention are three: (1) a downhole tool consisting basically of a sensitive coil suitably protected by an encasing sheath as it is run downhole inside a string of drill pipe, tubing or the like, (2) surface apparatus to pulse the coil by discharging a capacitor through it, and later to detect small voltages induced in the coil as a result of running it past magnetic spots in the string produced by the capacitor discharges, and (3) connecting elements for both running and pulling the downhole tool, e.g., a wire line, and for electrically connecting the coil to the surface apparatus.Such apparatus is used in conjunction with standard equipment at the wellhead to stress the string by either pulling up on it or trying to rotate it, or both.

Abstract: A modular housing system made up of wall panel units, roof panel units and floor panel units. Each unit is a framework made up of members which are preferably wooden or metal 2.times.4's or other readily available shape. The units are uniformly predrilled for connectors in such manner that they can be readily rotated into a variety of orientations and yet register with the connector holes in the adjacent unit.The system utilizes a novel removable connector also disclosed herein, an elongated headed pin having at its opposite a pair of parallel chordal slots adapted to receive both a serrated locking plate and a tapered wedge. The locking plate is disposed next to the wood and the wedge is tapped into locking position on the plate by motion parallel to the surface of the wood. It can not be unlocked by motion in the opposite direction, but can be removed simply by prying up on the end spaced away from the pin hole.

Abstract: Basic form is a conical reservoir, small end up and provided with a hook whereby the irrigator may be suspended from the same bracket used to support the hanging basket. A multiplicity of small openings downwardly through the base of the irrigator permits a slow dripping of a solution stored in the reservoir, and a larger opening at the top keeps atmospheric pressure on the top of the solution. In one refinement the base is provided with a number of downwardly extending channels to which the small openings may be limited. In another modification the distribution network is separated from the reservoir and is disposed just below it. The two parts are normally connected for flow by a plug connector which has a second or raised position wherein the flow passages are sealed to prevent any flow.

Abstract: A positive displacement device utilizing at least two rotors which roll sealingly on one another at a common pitch surface speed. Outwardly extending lobes on one rotor sealing engage the cylindrical bore of the housing of the device, fluid traversing the device circumferentially in the annulus between such bore and the pitch surface of the rotor. Speed of rotation of the two rotors is controlled by a timing chain running between sprockets mounted on the rotor shafts.When the lobe passes the line of sealing contact, a cavity is provided in the meshing rotor, and the lobe makes sealing contact with the wall of this cavity during at least that interval when there is no sealing contact between the pitch surfaces, i.e., the interval when the mouth of the cavity is passing through dead center.

Abstract: A densimeter for measuring the density of a fluid with a disk-shaped body having an axis with a horizontal component and being rotatably mounted on a shaft along the axis. An open cavity is provided in the body so that the center of buoyancy of the body is displaced from the axis. The body has a generally homogeneous density and includes a region wherein the density is different from that of the disk. Because of the density anomaly the center of gravity of the body is displaced from both the center of buoyancy and from the axis. The outer perimeter of the body is circular so as to encounter minimal drag resistance while rotating in a fluid. When the densimeter is placed in a fluid, the disk will rotate on the shaft. The density of the fluid is determined from the angular position of the disk on the shaft upon reaching equilibrium.

Abstract: A brush is rigidly attached to one end of a housing having a handle at the other end and, between the ends, a cylindrical opening supporting a rotor whose center of mass is displaced laterally from the axis of rotation. As the rotor turns, it exerts an unbalanced centrifugal force on the housing, causing it to oscillate. The rotor is preferably a single metal roller gyrating or rotating about the axis of the cylindrical opening, and it may be rotated by a tangential stream of fluid, e.g., water at utility district pressure. The rotor body may be solid or a hollow member filled with a heavy liquid such as mercury, and it is so supported that during rotation its outer peripheral surface approaches but does not touch the borewall of the opening in which it operates.

Abstract: A multiplicity of sound modules are mounted on a number of baffle plates which define an essentially continuous surface, e.g., a ceiling. Each sound module consists of a loudspeaker and a cavity-defining member which may be a thin-walled shell or a rectangular block of lightweight material, e.g., foamed polystyrene. The cavities are preferably spherical and of equal size, and the loudspeakers are preferably identical and electrically interconnected for simultaneous reproduction of a common input signal.The baffle plates are chosen to correlate with existing interior designs, and thus may be flat or curved, and may cooperatively or individually support one, two or several sound modules. When 2 by 2-foot acoustic tiles are employed, the invention may be thought of as embodied in like units each consisting of a factory assembly of at least one loudspeaker, the same number of cavity-defining members, and a baffle plate in the form of an acoustic tile, the latter not necessarily being of sound absorbent material.

Abstract: The invention operates on a bundle of cooling tubes which in use are disposed within a heat exchanger shell which is typically a longitudinally elongated cylinder disposed with its long axis horizontal and supported well above a floor, on a steel framework. The array of tubes become corroded and clogged after a period of use, either internally, externally, or both, and must be pulled linearly out of the shell for replacement. Typically the initial pulling is a difficult job because the tubes have become tightly corroded to the shell.Herein is disclosed an improvement to the type of tube bundle extractor in which the operative unit is a car movable along a pair of rails supported in alignment with the heat exchanger, the rails being supported on a framework which is usually suspended from a crane hook, the framework being secured to one end of the heat exchanger during a bundle pulling or bundle inserting step.

Abstract: A combination of loudspeakers, primary enclosures for individual loudspeakers, and a secondary enclosure or baffle for the entire array. The loudspeakers are preferably all of the same size, and the same is true of the primary enclosures. Although other shapes may be used to advantage, each primary enclosure is preferably a spherical shell of hard material such as metal, glass or a rigid plastic, having a diameter limited only by practical considerations to two to three times the diameter of the loudspeaker. Each such enclosure is provided with an opening in which a loudspeaker is mounted in such manner as to completely fill the opening; otherwise the primary enclosure is left unvented, although it may be provided with a capped opening for access to the speaker and wiring.The secondary enclosure is preferably a second spherical shell, albeit of much larger diameter, and made of a similar hard material.

Abstract: A tie clasp shaped generally like a safety pin and having a shirt link attached to its fixed back member. The novelty lies in so proportioning the clasp that it can be used to receive either the back pendant portion or both pendant portions of a four-in-hand necktie. When used only to receive the back pendant, the clasp is preferably made long enough to receive the usually relatively narrow rear pendant but not so long that it extends to either side of the usually rather broad front pendant, thus making the clasp invisible to an observer facing the wearer. Also when so used, the tie clasp has a forward member with a pointed free end, this member being movable between a closed position and an open position, and while open it is thrust into and then out of the rear fold of the front pendant without going completely through the thickness of the tie, thus securing both pendants while at the same time remaining invisible.