Abstract: A two-speed, self-propelled dolly intended for moving and elevating a load such as, for example, a mobile home. A generally rectangular frame is supported by a pair of endless belt tracks mounted on its opposite sides. A load engaging member is raised and lowered by an elevating unit connected with the frame, including at least one power driven screw jack. A pair of drive systems, one for each belt, is provided. Each drive system includes a drive wheel rotatably mounted on the frame and engaging the associated belt track. Each drive system includes a reversible, synchronous electric motor having an output shaft which is coupled to the associated belt track by a two-speed gear box which drives the track either at a traverse speed approximately equal to the walking pace of an adult human or at a relatively slower, load-carrying speed.
Abstract: The application discloses a valve and nozzle device for filling liquid into open-top cans or other receptacles one at a time, travelling on a conveyor.A commercial requirement is top speed achievable, and the conveyor moves the receptacles horizontally under a periodically discharging nozzle, which discharges a can-filling charge of liquid periodically, as rapidly as the can can be filled, and transported away to make room for the next charge. The apparatus disclosed discharges charges of liquid, under poppet valve control, through a discharge skirt formed to swirl each charge so that the charge impinges on the can, or can contents at a swirl angle, rather than straight down. By coordinating this swirl action with the downward velocity of the discharged charge, splash-out can be eliminated, and higher performance accomplished with a clean, non-splashing operation.
Abstract: A package is provided for containing and delivering to a physician, laboratory or hospital a glass slide fastened removably in position, spatula, tongue depressors, etc., for use in obtaining a specimen, and retaining it on the glass slide during transportation to the laboratory for analysis. The package comprises two side panels, joined by a narrow end wall, with end walls also at the remote ends of the panels, also edge walls, and side flaps. After the specimen has been deposited on the glass slide, the side flaps are severed, so they can be folded over independently of one another. The package can then be folded into a smaller one, more compact by about one-half the original length, for transportation or mailing to the laboratory. Features are provided for protection of the deposit on the glass slide from the opposed wall portions of the package.
Abstract: The disclosure is of an improvement of automatic load brakes, of the type generally and generically known as a Weston disk brake, as used, for example, in braking a hoisting drum adapted for reeling in and reeling out a cable suspending a load.The frictional brake disks and plates, while lowering the load, experience a feed-back torque from the load. Means are provided for feeding only a proportional part of the total energy so fed back to only a fraction of the brake plates, whereby to instantly break these loose for relative rotation in response to lowering inputs. By this feature, response is instantaneous, and no further provisions are required to break away or accelerate the plates. Improvements are also disclosed by which, when feed-back is controlling the application of the brake, the usual oscillatory application of the brake, i.e., chatter, is stabilized and virtually eliminated.
Abstract: The disclosure is of a clip, constructed of plastics material, adapted to secure together, in a stack, a number of berry box trays, all of the general type disclosed in my prior U.S. Pat. No. 3,750,936, the clips being adapted to operate at certain times as a handle, and at others to coact with a paperboard dust cover sheet to releasably bind the latter in a secure manner onto the top tray of a stack of such trays.
Abstract: The disclosure is of a combination of plastic clips, stack of berry basket trays and paperboard dust cover secured thereby. The clip is constructed of plastics material, adapted to secure together, in a stack, a number of berry box trays, all of the general type disclosed in my prior U.S. Pat. Nos. 3,750,936 and Re. 26,386, the clips being adapted to operate at certain times as handles, and at others to coact with the paperboard dust cover to releasably bind the latter in a secure manner onto the top tray of a stack of such trays.
Abstract: The disclosure is of a wheeled truck or transport vehicle, adapted for elevating and supporting the nose wheel of an airplane, of the small or private class, and transporting it about the landing field. The truck has a horizontal nose roller, adapted to be rammed under the nose wheel of the airplane landing gear, and to thereby elevate the nose wheel. The advancing truck has, just behind the nose roller, a horizontally pivoted gate, initially swung down to act as a platform, and behind that a turntable. These ride under the nose wheel, one after the other, as the nose roller is thrust under the nose wheel of the airplane and then on beyond. The gate already mentioned is initially positioned in an approximately horizontal position, just in back of the nose cylinder of the truck, and is pivoted at the bottom on the normally front edge of the turntable.
Abstract: The disclosure is of an effort limiting actuator, comprising an arm system which is subject to lateral deflection when subjected to a predetermined force or torque, but which withstands deflection until such force or torque reaches a predetermined magnitude. The arm system is stabilized against exerted force or torque until a pre-compressed helical compression spring incorporated in the device has been compressed sufficiently under said force or torque to overcome the force of pre-compression, at which time the aforementioned deflection occurs. This deflection will be in either of two directions depending upon the direction of the force or torque. Switch means are selectively actuated in response to the direction of the force or torque thereto to interrupt that force or torque, or in other words the initially mentioned effort, which the actuator is intended to limit. The device is operative with the effort exerted in either direction of operation, and is thus directionally discriminative.
Abstract: A splice for a shielded high voltage cable wherein a section of electrical shielding sleeve of the original cable is replaced by an open-mesh sleeve, and the latter is concentrically supported on the connector sleeve by a polyurethane helix. A polyvinyl chloride or other plastic jacket is taped to the cable at its opposite ends, and is filled in with mixed polyurethane plastic material, an epoxy, or the like, which invades the entire interior of the splice, inside the jacket, and inside the open-mesh replacement shielding sleeve as well. The unshielded case is the same, but with the shield and shield replacement step omitted.
Abstract: The disclosure is of a system for maintaining tension in a cable during winding off or on a power driven cable drum. The cable winds off or back onto the cable drum over a roller means, e.g., between a pair of parallel geared-together traction rollers, or over a sheave, as another example, with a non-slip engagement therewith. The non-slip engagement avoids wear on the cable, and the life of the cable is greatly extended. To permit this, a frictional slip clutch is placed in a power transmission interposed between the power driven cable drum and the non-slip drive rollers, or sheave. The wear that formerly eroded the cable now occurs in the friction slip clutch, whose parts can always be quickly and inexpensively replaced. The system also includes certain one-way roller clutches, and gears, so arranged as to normally overdrive the roller means, or sheave, in paying out cable, and to retard the cable during winding in.
Abstract: A process is disclosed for exposing to ultraviolet light a semi-conductor or hybrid substrate coated with photo-resist, in back of a mask having bars and very narrow slits, the diffraction patterns ordinarily experienced at the substrate being virtually eliminated through use, between the light source and the mask, of a light integrator comprised of two successive matrixes of very small lenses or lenticules. The lenticules form a large number of magnified, superimposed, slightly displaced images of the light source in the plane of the substrate; and when the slitted mask is interposed, this light forms a large number of diffraction patterns on the substrate which, because of their large number, superimposition, and slight displacement, results in extreme uniformity of light intensity and sharp resolution throughout the pattern of light on the substrate.
Abstract: A sensor switch is described for use within an object handling conveying system such as a baggage conveying system, adapted for actuation by passing objects, such as baggage, though not limited thereto, or a transport vehicle, for objects or materials, by engagement against an upstanding sensor element.The sensor element comprises a semi-elliptical shell, topped by a vertical stem, and is mounted for depression and angular deflection, against spring support means, when engaged laterally by a unit object, or a transport vehicle. The spring support means includes an element which actuates a microswitch when the sensor element is thus depressed and/or tilted. The circuit of the microswitch energizes an indicator, such as a signal light, for information of a distantly located operator.
Abstract: The application discloses a rigid or semi-rigid, two-part confining cover for a patient in a conventional hospital bed. The problem dealt with is that of a disturbed patient who would normally require confinement by ties, straps, or other conventional restraints, together with, in many cases, round-the-clock guarding by an attendant. The mattress support frame of a hospital bed usually has one or more horizontal pivot joints, the most important of which enables tilt-up of the back of the bed. Knee lift provisions are generally provided. The disclosed cover includes forward and rearward open-bottom shells, hinged to one another about the hinge axis of the bed used for tilt-up of the back part of the bed. The front shell has side walls rising from the longitudinal edges of the bed frame, forward of the aforementioned pivot axis, a front end closure, and a top closure. The back shell has side walls rising from the longitudinal edges of the bed frame from this pivot axis back, a rear end wall, and a top wall.
Abstract: A magnetized pointer in conjunction with a dial scale affixed to a supporting panel, on the opposite side of which is located a rotary device such as a potentiometer, to the shaft of which is attached a magnet, the poles of which will cause the opposite poles of the magnetized pointer to follow and indicate the degree of rotation, without the need of mechanical coupling.
Abstract: The invention comprises a device for spraying a viscous non-stick, liquid cooking preparation onto a grill heated to a predetermined temperature, and includes a stand resting on the heated grill, such that heat from the grill, by both conduction and radiation, warms the spraying device to a temperature level at which the viscosity of the preparation is reduced to a level at which it can be effectively sprayed.
Abstract: There is disclosed a vacuum contact printer and process for printing copy plates from master photomask plates depicting electronic circuitry.The printer embodies a vacuum-tight enclosure or casing, containing three vacuum chambers, two outside master and copy plate plenum chambers, and an intermediate main chamber. Retainers for the master and copy chambers hold and frame the master photomask and copy plates, respectively, and these retainers are mounted in confronting printing frames. The one of these printing frames which supports the master photomask plate is carried by a mounting plate fixed to an outside casing, and the other of the printing frames is carried by a swinging door of this casing. The master and copy photomask plates form partitions across the interior of the casing, and are positioned against flexible elastomeric framing seals, which complete these partitions.
Abstract: An acoustic communication method and system are disclosed for transmitting information through a well-bore drill string by using the acoustic noise inherently generated in the drill string by drilling operations as a "carrier" propagated therealong to be modulated by the information to be transmitted. In the drilling of wells, the action of the drill tool on the bottom of the bore hole creates acoustic noise within the drill string. Other suitable sources of "noise" are often present during "drilling operations", as broadly defined, even while bore drilling, as such, is suspended. This noise usually consists both of wide-band continuous acoustic energy and of narrow spectral lines of acoustic energy and is usually present in a variety of acoustic modes such as longitudinal and torsional acoustic waves. The detailed characteristic of this acoustic noise depends on the type of drill tool used, the drilling speed and the type of formation being drilled.
July 28, 1975
Date of Patent:
January 4, 1977
American Petroscience Corporation
Arthur E. Lamel, William D. Squire, Harper J. Whitehouse
Abstract: The invention provides cleats or bars for interlocking produce lug boxes at the top tier of multiple tier columns of such boxes arranged on a pallet in a unitized stack. The lug boxes have rectangular plastic frames at their ends, surmounted by spacers, and the invention provides cleats or bars which clamp to these spacers at the top of the stack. The end frames of the containers engage end-frame to end-frame in the stack, and are provided with interlocking elements which prevent lateral shifting of individual containers. In combination with the use of these interlocking elements, the clamping bars at the top provide an especially well integrated stack of containers. In addition, certain binding tapes are used, and these interengage with guides and recesses in the end frames and locking bars to unitize and stabilize the stack. The clamping bars also provide flat platforms on which can be mounted a second pallet supporting a second stack of containers.
Abstract: There is disclosed a machine for successively applying weld metal to the journals and crankpins of an automotive crankshaft, by rotating the crankshaft on its axis, and employing a means for causing a weld metal feeding torch to follow the crankpin around its circular or planetary path travel, depositing a bead of weld metal on the crankpin. The torch is also translated along the crankpin, and a bead or beads of molten metal is or are then wrapped around the crankpin, preferably in a succession of adjacent circles, and welds thereto. The layer of weld metal thus added is subsequently machined to its proper dimensions.
Abstract: A device is disclosed by which two paired controls in an aircraft flight control system, such as pitch controls, or the roll controls, which are ordinarily operated in coordination by the pilot by use of a single operating control may, when the control on one side of the airplane is damaged and jammed, accomplish a disconnect of that side, and so free the opposite side control for operation. The aircraft can often be flown with just the one side control in commission, if freed from the opposite side. The device is in the nature of a bell crank, and the disconnect means is in the hub thereof.Also disclosed is a novel bi-directional sensor incorporated in the input arm of the bell crank, and which gives an indication to the pilot when the linkage to the corresponding control surface, or the control surface, is damaged and jammed. This sensor has application other than in aircraft control systems.