Abstract: An auxiliary steam superheater designed to be easily added to an existing steam system to boost the steam temperature to approximately 750.degree. F. This superheater comprising a steam coil system enclosed by an insulated casing which defines a central radiant heating chamber with the coil system spaced inwardly from the inner surface of said casing to provide a convection heat passageway. Hot gases from a heat source are introduced through one end of the casing and into the "interior" of said coil system, thus providing radiant heat directly to the inner surface of said coil system and utilizing the "black body" heat transfer principle. An exhaust flue is provided at the top of said casing in close association to the end of the casing where the hot cases are introduced, the gases flowing through the interior of said coil system and out around the coil along said convection heat path before passing out of said chamber through said flue.

Abstract: A finely divided product containing Ni and Fe is dissolved in a sulfate-containing solvent in at least two stages and in the presence of an alkali metal and an oxidant for preciptating the Fe as alkali jarosite while Ni remains in solution which is subjected to an after-treatment. Similar processes can be used to separate cobalt and/or chromium from products containing either or both of these metals as well as iron.

Abstract: A feeding mechanism for supplying elongated strips of material, such as photographic print paper and the like, in a tension-free state by use of a slack loop of said material, the size of which varies in response to the demands of a processing machine. Said loop actuates a switch for energizing and deenergizing a drive mechanism for supplying said loop from a supply roll so that the size of the slack loop directly controls the supply mechanism.

Abstract: A method and apparatus for testing the integrity of spot welds made by a welding machine without destroying the manufactured parts being produced, said method and apparatus including welding together a pair of angle members made from the same sheet material as the parts being manufactured to form a "T-shaped" test specimen with the outwardly extending cross arm of this "T" forming attachment portions and providing a testing tool constructed and arranged to pull apart the welded together portions of the angles and test the integrity of the weld with a minimum of force being applied thereto.

Abstract: A mechanism for controlling the loose trailing end of a strip of paper passing through a photographic dryer and includes soft, readily yieldable retarding elements mounted in inclined relation to the downward run of the path of the paper strip through the dryer in generally opposed relation to the discharge of hot drying air from a pressurized distribution plenum. In paper processors individual strips of photographic prints are transported therethrough by being attached at their leading ends to a transport belt which carries the strips through a tortuous path including a downward run with the hot drying air being blown against the surface of the paper to be dried. Since only the leading end of the photographic paper is attached to the transport belt, the trailing end is loose and tends to fall down within the downward run portion of the drying chamber.

Abstract: An automatic density control device for photographic printers for sensing and correcting for a "subject failure" in a photographic negative, where the subject area of the negative is out of the optimum density ratio to the background area, which device includes a frusto-pyramidal radiation directing member having its enlarged end proximate to the negative and its small end remote therefrom and being positioned to receive the radiation from a source through the negative and having subject sensing means mounted at the central portion of the enlarged proximate end of said member to sense the radiation passing through the central subject area of the negative and also having background sensing means mounted at the diminished remote end to sense the radiation passing through the marginal portions of the negative and the marginal portions of the enlarged end of said member and including circuitry for comparing the signals produced by said subject sensing means and background sensing means and thus deriving a density

Abstract: This is a closer for sliding doors which includes a coil spring and a cushioning element in combination therewith and is specifically constructed to facilitate attaching the same to a sliding door and the invention also includes the method and apparatus for attaching the closer.

Abstract: A stripping and transfer roller assembly particularly constructed for use in sheet film processors and which includes a pair of cylindrical rollers positioned in closely spaced relation for driving individual sheets of film through a drier and thereafter transfer the same laterally while in substantially upright position into a receiving bin disposed in close association to said rollers, one roller being hollow and having a plurality of pairs of diametrically opposed openings formed therein in axially spaced relation, soft compressible stripping and transfer elements inserted into said hollow roller and aligned with a pair of said openings and having portions thereof normally extending through said openings and beyond the outer surface of said hollow roller, said portions being radially compressed when said sheet passes between said pair of rollers and which expand as said portions rotate out of contact with said sheet, the expansion of said elements stripping the sheet from the stripping roller, said expande

Abstract: An adjustable camera mounting device including a print holding panel located at an operating station at one end of the device and an elongated camera-mounting guide track extending generally normal to said panel with a pair of camera-mounting slides carried on said track, one for mounting the main camera body and the other for mounting the lens of the camera, and having controllably rotatable drive shafts constructed and arranged so that the operating controls are positioned at the operating station and rotation of one shaft moves both slides together without varying the spacing therebetween and rotation of the other shaft moves only the camera focusing, lens-mounting slide to permit the camera position and focus to be quickly and easily adjusted for different sized prints to be copied and also including indexing counters located at the operating station and connected to said shafts to indicate the respective positions of the slides.

Abstract: This is an electro-mechanical tooth brush having opposed sets of bristles specifically designed to simultaneously brush both the inner and outer surfaces of the teeth by reciprocating one set back and forth, and also having a central hub element for brushing the chewing surfaces of the teeth fixed to and moving with the reciprocating set of bristles.

Abstract: This is a heat liquid exchanger unit particularly adapted for use with situations where the heating liquid is under low pressure gravity flow at a relatively slow flow rate and constitutes a pair of outer flow passages for the gravity flow heating liquid, which surround an inner replenisher liquid flow chamber through which liquid under controlled rate of flow passes so that the flow rate of the replenisher liquid is equalized with the flow rate of the discharge liquid, the panels between the outer passages and the inner chamber being of thin wall high heat transfer construction and being specifically formed to provide a torturous path for the liquid through the inner chamber, the outer chambers also have a series of spaced divider brackets forming a torturous path through the outer passages.

Abstract: This is a lock which can be quickly and easily attached to the locking groove of the king pin of a trailer to block entrance of the king pin into the attaching slot of the "fifth wheel" of a tractor, the lock having a pair of pivotally connected pin-surrounding locking segments with a snap-in lock element to hold the segments in closed position and also incorporating a safety warning sign to indicate the presence of the lock on the king pin and prevent inadvertent damage to the lock or the tractor unit.

Abstract: A stripping and sheet transfer roller assembly particularly constructed for use in sheet film processors and which includes a pair of cylindrical rollers positioned in closely spaced relation for driving individual sheets of film through a dryer and thereafter transfer the same laterally while in substantially upright position into a receiving bin disposed in close association to said rollers, one roller having a plurality of spaced apart soft compressible stripping and transfer elements attached in radially extending relation to the periphery of the rollers and are radially compressed when said sheet passes between said pair of rollers and which expand as said elements rotate out of contact with said sheet, the expansion of said elements stripping the sheet from the stripping roller, said expanded elements then engaging the trailing edge of each stripped sheet to transport said edge laterally and deliver the sheets into said bin in substantially upstanding position in said bin.

Abstract: This is an illuminated display box light sealed except for an illuminated display window and a translucent display strip mounted on a pair of rollers and particularly constructed to display sequentially arranged navigational aid information to the pilot of a boat at night without producing glare in other areas of the wheelhouse thus preventing impairment of the pilot's vision at night while still providing ready access to said navigational information displayed on the portion of the strip located in the display window.

Abstract: A mechanism for collecting and arranging into a horizontal stack a large quantity of photographic slides being delivered from a photographic slide mounting machine, which includes a transfer and packing belt positioned to receive the mounted slides in overlapped relation and an elongated carrier cassette which is open on the bottom and at one end and is mounted over the upper run of said belt to enclose the same and provided with a generally inclined stacking element at the end of said cassette which is remotely disposed from said delivery mechanism of the mounting machine, the leading edge of said stacking element positioned in closely spaced relation above the upper run to receive and progressively raise into upstanding horizontally stacked relation the mounted slides being transferred by said belt. This invention also embodies the method for arranging said slides into a closely packed horizontal stack within a carrier cassette adapted for transportation and/or storage of the mounted slides.

Abstract: This is a disposable enema evacuant collection system comprising a bedpan having an interior bottom surface sloping toward a large discharge opening and a transparent plastic multi-compartmented receptacle with a conduit extending therebetween, and having controllable divider branches communicating with the respective compartments of the receptacle and means for selecting the respctive branch into which the evacuant is discharged thereby facilitating respective measurement of the evacuant, providing a more efficient and less demeaning manner of enema administration, and also greatly facilitating the obtaining of a fecal specimen for analysis.

Abstract: This is a collapsible molded plastic trivet device which comprises a pair of integrally molded pivotally connected elongated plastic arms with upstanding spacer blades formed of the ends of and adapted to be collapsed for efficient storage and thereafter expanded into an operative position and including a strengthening bead around the edge portions of said spacer blades thereby achieving minimum contact area with the utensil and permitting maximum exposure area of the cooking utensil with the ambient air as well as providing the required blade strength for the inexpensive molded plastic construction.

Abstract: This is a continuous elongated multi-layer web assembly having outer cover layers and intermediate divider layers connected along one longitudinal edge portion thereof and specifically adapted for automatic separate packaging of developed film negatives, prints and other materials for the ultimate consumer while providing individual pockets for the prints, negatives, and other materials and having spaced apart transverse severance line areas defining individual multi-pocketed packaging envelopes wherein portions of intermediate divider layers along said severance line areas are cut out to permit face to face sealing contact between the outer cover layers to define each package and also having completely severed portions which are cut through the connected edge portions of solid layers and which are respectively aligned with the transverse severance line areas to facilitate cutting along the remaining length of the severance lines to form said individual packages.

Abstract: This is a recess ceiling dome particularly adapted to be installed in an existing building and specifically includes supporting members for ceiling joists that have been cut out to provide the opening to receive the dome which is adapted to permit a chandelier to be mounted therein while still providing adequate head room thereunder. This invention also consists in the method of installing the dome which includes initially cutting out an opening in the finished layer of the ceiling to expose the ceiling joists to be cut, supporting each of the joists to be cut from a portion of the frame structure of the existing building thereafter cutting through the joists around the edges of the opening and installing a chandelier receiving dome in the opening thus provided.

Abstract: This is a collapsible flower stem holder which includes a pair of pivotally connected elongated arms, adapted to be collapsed for insertion through a narrow mouth vase and thereafter expanded into an operative position within the bottom of the vase and including a plurality of stem receiving holes in the portions of the arms which are elevated from the vase bottom to positively position the flower stem in the bottom of the vase.