Abstract: An extendable, elevatable and rotatable boom carrying at its outer end a basket which is longitudinally collapsible in order to reduce the longitudinal space occupied by the collapsible basket, the boom and basket being adapted to be mounted on a rescue crash or service vehicle having a cab. The collapsible basket may be stored behind the cab with the boom in storage position behind the basket and both the boom and basket when stored, extending upwardly no further than the cab. The cab, with the basket positioned above at least a part of the cab, may have means providing access between the cab and basket, such as a sliding panel of the top of the cab and pivotal front and rear bottom plates of the basket.

Abstract: A rubber wear layer is molded to a metal sheet, which is relatively thin, in comparison with a side rail for tensioning a vibrating screen, then attached to the side rail, as above a flange which provides a connection with the screen. The rubber layer and sheet may be wider than the width desired for the rail, in which event the wear layer and sheet are trimmed to the desired width, as by shearing. The rubber layer may also have a width less than the sheet, so as to leave a lip along one edge. The aforesaid attachment is made by pins propelled by an explosive charge through the bonded layer, the sheet and the plate at spaced positions. A head of each pin abuts the sheet and the portion which extends past the plate is removed, as by grinding. The sheet may be additionally attached to the rail by spot welds at spaced psitions on the lip, which prevents the heat of welding from adversely affecting the rubber. The lip is placed on the plate opposite the flange which connects with the screen.

Abstract: A track having spaced, parallel edges, including a plurality of adjacent curves facing in different directions and connections between the curves, around which a frame carrying an object, such as simulating a racing car, a greyhound, a horse, a camel or the like, is moved by gravity when the track is tipped. An inner panel has an outer contour providing the inner edge of the track, while an outer panel has an inner contour providing the outer edge of the track. The frame on which the object is mounted carries a pair of wheels engaging both the bottom and the top of the track at each side. The frame also carries a pair of circular, rotatable ball bearings mounted for rotation in the plane of the track panels and engageable alternatively with the opposed edges of the track for guiding the object around the track. The spacing between the track edges is slightly greater than the diameter of the ball bearings, to provide clearance.

Abstract: A fishing reel having a drive motor, gearing, stationary spool for the fishing line and a flanged winding cup provided with a guide for a pickup pin extendable through the flange, together with a cam for causing the guide and pickup pin to be extended, includes a spring which moves the winding cup toward the cam and produces sufficient force to maintain the guide on the cam against a surge of a fish when the pickup pin is extended to use the gearing and unactuated drive motor as a brake. An optical fiber, terminating adjacent the winding cup flange, transmits an impression of the line moving in front of its end around the winding flange during casting or the pickup pin similarly moving, to a translation device which converts the number of rotations into feet, meters, or the like. Such movement is correlated with the amount of line moved onto or off the spool to compensate for differing diameters of a line loop so wound or unwound.

Abstract: A method of preventing smoke curling from beneath depending enclosure walls of a grease extraction ventilator, comprises providing a series of apertures in the walls from adjacent the lower edge thereof for a predetermined distance upwardly. The apertures are preferably comparatively small and relatively closely spaced, being preferably placed in parallel rows, also parallel to the lower edge of the wall, with the apertures of adjacent rows. The number of rows may be varied, depending on the height of the wall and the capacity of the ventilator, with additional apertures for a ventilator having a larger capacity. The apertures may be slots, such as relatively short, and with the spacing between parallel rows being equal to or less than the height of the slots, with the lowest row being relatively close to the lower edge of the wall. Or, the apertures may be circular or having other shapes, such as oval, elliptical or the like.

Abstract: Transfer waste water from wash cycle of dishwasher to collection tank beneath heat exchanger surrounding hollow central space, pass waste water through dual tube heat exchanger in countercurrent relation to cool feed water for hot water heater in central space of heat exchanger, supply heat to water in heater, then hot water to dishwasher rinse. May circulate feed water downwardly through outer space of heater, formed by partition, to lower end of inner space, in which heat is supplied by electrical immersion heaters. Ends of tank of hot water may be semi-oval, semi-elliptical or the like, while partition may be sufficiently close to bottom of tank to produce a wire-drawing effect as inlet water flows from outer to inner space, thereby maintaining light or small particles which fall off electric heaters in circulation, so that such particles will be removed with hot water. Heavier particles will collect in bottom of tank and may be drained periodically.

Abstract: A holding tank receives waste water from a dishwasher or laundry machine having a rinse cycle and at least one wash cycle. A pump moves the waste water through a heat exchanger at the same time that the rinse cycle requires hot water from a hot water heater. The cold water feed for the hot water heater is also passed in countercurrent heat exchange relationship with the waste water to provide warmed or heated makeup water at the same time that hot water is being withdrawn therefrom. The cooled waste water from the heat exchanger may be collected in a tank and supplied to any one or more of several additional devices, such as a water cooled refrigerant compressor, a grease extraction ventilator having water contact means, a waste food grinder, etc. The ventilator and compressor may also be placed in series, while the cooling water heated in the compressor is recirculated to the heat exchanger.

Abstract: The underwater thermometer includes a transparent block, preferably formed of an acrylic plastic, having a planar rear surface provided with a longitudinal recess adapted to receive a fluid and tube type temperature indicator, with an enlargement at one end of the recess for receiving the bulb of the indicator. The indicator is adhesively attached to a foam pad, in turn adhesively secured to a flat, transparent layer, corresponding in shape to the planar rear surface of the block and adhered by a transparent adhesive, preferably an acrylic adhesive, to the rear surface of the block. The transparent layer is also provided, on its rear side, with one or more temperature scales and other indicia printed in reverse and visible through the transparent block, at least a portion of the front of which, such as the portion overlying the recess, is parallel to the planar rear surface.

Abstract: A grid which produces a vaultlike appearance on one side comprises a first series of parallel plates extending in one direction and a second series of parallel plates extending in the direction to intersect the first series of plates. At least one of the series of plates is generally concave on the one side; when only one series of plates is generally concave on the one side a tunnel effect is produced with the side edges generally concave, but when both series of plates are generally concave on the one side, a dome appearance is produced. The grid may be used as a ceiling grid and illuminated, if desired, or as an upright partition or divider placed on one edge. The opposite edges of the plates may be equidistant, including any deviations from a curve on which the edges may be laid out. A series of scallops, concave on the one side and convex on the opposite side of each plate may have the length corresponding to the distance between intersecting plates.

Abstract: A hollow hose has a series of preformed triangular units or sections in connected sequence, with one leg of each unit adapted to engage the ground when the hose is stretched to correspond to the length of the area to be sprinkled. The upwardly extending and downwardly extending legs of each unit or section have outwardly disposed holes, through which the liquid for sprinkling is discharged. For a shorter hose, the holes may be of the same diameter, but for longer hoses smaller holes at the inlet end and larger holes at the opposite end may be used, with intermediate size holes between for still longer hoses. Special stakes for holding the bottom legs at opposite ends to the ground may include an arcuate notch for engaging the corresponding hose portion and a stem alongside the notch for penetrating the ground.

Abstract: A lower boom is pivotally mounted on a turntable and moved upwardly and downwardly by a hydraulic cylinder, the lower end of which may be pivoted on the same pivot shaft as that on which a pair of links are pivoted. The outer ends of the links are pivotally connected to the lower end of a knee joint, preferably formed of heavy plate and attached to the inner end of an upper boom, while the outer end of the lower boom is pivotally attached to the knee joint above the links. An extensible boom, hydraulically moved inwardly and outwardly of the upper boom, may carry a workman's basket and/or a hydraulic nozzle, as for extinguishing fires.

Abstract: A method of producing multiple coil, multiple tube heat exchanger from circular tubes, in which alternating turns in each coil have a warmer liquid and other turns a cooler liquid, by coating the outside of each coil with a heat conductive mastic and winding the next coil against the mastic to force the mastic into spaces between adjoining tubes of the first coil, into spaces of adjoining tubes of the second coil and into spaces between opposed tubes of first and second coils. Mastic applied to outside of each coli or into grooves between turns as next coil wound. Double tubes of each coil preferably wound into grooves between turns of preceding coil. Second tube of each coil started across coil from first tube and continued at end of coil past first tube. Succeeding coils wound against mastic in same manner. Turns of first coil attached together, as by soldering, while first and last turns of succeeding coils similarly attached to adjacent turn of coil beneath.

Abstract: An immunoassay of a specimen of a serum or the like to determine immune complexes, includes producing on a plastic base a layer of a non-proteinaceous, non-ionic polymer which will adhere to the plastic base and has the capability of absorbing immune complexes of the specimen, placing a specimen on the layer and treating the layer to produce an indication of the amount of immune complexes. The polymer may be polyethylene glycol, dextran, polyvinyl chloride, a polymeric polyol or an adduct of polyethylene glycol. Washing with conventional solutions, addition of an antihuman IgG coupled with an enzyme and addition of a substrate reactive therewith, are similar to the ELISA test, with color measurement as by spectrophotometer. Or, the addition of anti IgG-I.sup.125 and measurement by a scintillation counter may be used. The ethylene glycol may range in molecular weight from 2,000 to 20,000, although 6,000 to 8,000 is preferred.

Abstract: A spur holder is formed of flexible material and has a rear body and sides connecting the body to a front loop, which is stretchable over the heel of the boot to engage the front of the heel, with the rear body disposed at the rear of the boot adjacent the upper edge of the heel. The rear body has a generally oval front edge and a rear edge corresponding generally to a portion of an ellipse, while each of the front and rear edges of the loop correspond generally to a flattened oval. A rib extends outwardly from the rear body and a portion of each of the sides, adjacent the inner edge of each and is adapted to engage a crevice above the heel when the holder is installed on a boot. A spur rowel and shank are attached to the rear body, as by a plate molded within the rear body or a cap which covers the plate and is vulcanized to the rear body. The inner edge of each of the sides may be provided with a taper opposite the rib to accommodate additional stretching of these edges.

Abstract: A roll extends around the upper end and along each side of an infant's back. The panel continues beyond the roll as a flap on which the infant sits. The roll is formed by an outer layer enclosing a resilient but compressible material and preferably has a larger diameter from the top of the panel, which may have a curved, convex contour followed by the roll, along each side of the panel to a position corresponding to the shoulders of the infant, and then decreases or tapers to the end of each side of the roll. Both the outer layer of the roll and a front layer of the panel may be quilted fabric layers with a rear layer of the panel being fabric.

Abstract: A lever for moving a shaft which, in turn, moves pressure rollers away from the platen, against which the paper is held by the pressure rollers, is movable between first and second positions. The lever is urged, as by a spring, toward the first position which corresponds to the paper engaging position of the rollers. When moved to the second position, the lever is engaged by releasable holding means which is resiliently urged toward the lever but is retracted by electromagnetic means. The latter is energized by current supplied through two switches in series, one of which is closed when the lever is moved to the second position, and the other of which is closed when the carriage of the teletypewriter or the typewriter is returned.

Abstract: This invention is essentially an improved means for contacting solids, liquids, and gases at elevated pressures and at desired temperatures, for providing inherently stable pressures, for conserving the heat of chemical reactions, and for minimizing the power requirement for pumping liquids continuously through a high pressure zone. The invention is particularly useful for processes utilizing physical, chemical, and/or thermal treatment, under elevated pressures, of continuously flowing streams of large volume which may contain suspended solids.The invention is based on the realization that deep boreholes, suitably lined, can be utilized as a particularly efficient apparatus for physical, chemical, and/or thermal processes.

Abstract: A molecular sieve material for removing water from a liquid, such as distilled alcohol produced from grain, is placed in a series of concentric cylindrical spaces of narrow but equal width and separated by concentric cylindrical passages of lesser width, through which a heated gas, such as air containing the gaseous product of combustion of a fuel, is passed for heating the material for regeneration. After heating, the material is cooled by a gas, such as air, through the same passages. The cylindrical sleeves forming the spaces and passages are relatively thin and the spaces are closed at opposite ends by annular rings to which the sleeves are attached, as by welding, with spacing blocks at spaced points in the passages. Additional rings, of slightly less width than the spaces, are spot welded just inside the end rings to permit flow of liquid but retain the sieve material.