Abstract: Fibreboard panels and the like, useful as drawer fronts, cabinet doors, table tops, furniture parts, moldings, baseboards and the like are formed of compressed fibre panels or strips with an edge treatment forming a contoured or profiled edge surface. The wood fibres on the edge surface are heat seared and die pressed together to form a heat seared sealed surface of skin which does not require subsequent filling and further mechanical surfacing and which is more easily finished by the application of liquid decorating materials, paints, stains, printing inks and various colorants. The cellulosic fibrous blanks are mechanically preshaped to provide a contoured profile edge which is subjected to heat and pressure from a heated die which sears and seals together the fibres forming a skin over the profiled edge surface. The skin formation results in a reduction of time and labor that is required for any final finishing operations and provides a better appearance for the entire surface of the fibreboard piece.
Abstract: By categorizing alternative hair textures and curl configurations in a display having various hair length and corresponding rod diameters displayed therewith, a compact, easily employable rod sector guide is achieved. In the preferred embodiment, the rod selector guide comprises a hand holdable instrument and is in the form of an elongated, substantially flat member with the information displayed on both sides thereof in an easily readable, readily identifiable chart format. Furthermore, the rods are preferably color coded by diameter, and the rod selector guide employs the specific color of each rod which is preferred for each combination of factors.
Abstract: A document shredder which comprises a strip cutter to cut waste document into strips, a chip cutter to cut the strips into chips, and a minuting device disposed downstream of the chip cutters to cut the chips into pulp-like mass. The minuting device includes a housing having a conical surface formed with cutting teeth, and a conical rotary body formed with cutting teeth in engagement the cutting teeth of the housing.
Abstract: A binder for hole-punched papers having a pair of covers and a spine, the outer side edges of which are connected to one of the covers, the spine being divided into a pair of longitudinally extending half-sections, having adjacent longitudinally extending inner edges. One of the half-sections has at least one rigid member extending transversely across substantially the entire width of the spine, to form a label holder and the other half section is provided with a recess for accommodating the rigid member in relationship in the closed position of the covers, the rigid member being accessible for insertion and removal of a label in the open position of the covers.
Abstract: Comminuting and classifying apparatus of the re-entrant circulating stream jet type includes a vortex chamber and jet means. The feed means includes a central conical recess in one wall of the chamber, a coaxial circular chamber opening into said recess and means to direct the material and gaseous carrier fluid into said chamber tangential to the wall of the chamber so that the material and carrier fluid is added to the vortex with a rotative velocity. The apparatus may also be provided with means for jet and anvil comminution of feed material and/or recirculating material. The chamber may include an annular shoulder for skimming undesirable particles in the feed material.
Abstract: A system and method is provided for forming semiconductor tear-drop shaped bodies having minimal grain boundaries. Semiconductor material is melted in a capillary tube at the top of a tower, and forced under gas pressure through a nozzle. Separate semiconductor bodies are formed. They are passed through a free fall path over which a predetermined temperature gradient controls solidification of the bodies. The resultant bodies are tear-drop semiconductor bodies of near uniform size with minimal grain boundaries.
February 7, 1977
Date of Patent:
February 12, 1980
Texas Instruments Incorporated
Jack S. Kilby, William R. McKee, Wilbur A. Porter
Abstract: A plastic wing nut with an internal thread, a mold therefor and a method of molding such a wing nut in which the wing nut is molded so as to have only a single internal thread thereby greatly simplifying the molding process is disclosed.
Abstract: In making integrated linings to be applied to spines of a succession of books in a bookmaking process, a high speed low cost method is disclosed which includes feeding strip stock from a supply of lining material, printing simulated headbands on one surface of that strip adjacent its longitudinal side edges and cutting the strip transversely to its longitudinal axis to form a succession of individual linings to be applied to spines of a succession of books.
Abstract: In the case of overloading of a gyratory crusher the manometer 14 detects a mean effective pressure of the hydraulic fluid in the cylinder 7 greater than a first limiting value, which causes the opening of the maximum pressure valve 18. The hydraulic fluid then flows into the hydraulic accumulator 22, previously filled with a gas at a pressure substantially equal to the said first limiting value. When the overloading is terminated, the maximum pressure valve 18 re-closes and the hydraulic fluid returns by the return branch 24 into the pressure chamber of the cylinder 7. In the case of very substantial overloading capable of damaging the apparatus, the manometer 26 causes the opening of the safety valve 29.
Abstract: A method and apparatus for reclaiming scrap produced in the manufacture of fabric reinforced thermoplastic resin sheet material so that the scrap may be worked, banded and calendered or extruded to form a finished product. The reclaiming or reworking of the material is made possible by first means for tearing the fabric fibers embedded in the thermoplastic resin into discrete finite lengths, means for mixing the resulting fibers and resin and means for forming the mixture into a new sheet of thermoplastic resin material suitable for many commercial uses. The tearing of the textile fibers embedded in the scrap into minute lengths is accomplished by means for applying shearing force to the opposite surfaces of the segments of scrap, in directions parallel to the surfaces.
March 10, 1975
Date of Patent:
January 22, 1980
The General Tire & Rubber Company
William J. Benkowski, Richard L. Fishel, Francis J. Maurer
Abstract: A knife adjustment system including a normally non-rotatable quill threadably attached to a hub outwardly extending from the face of an extrusion die at a point proximal said face in order to insure that the operating temperatures of such quill and hub at the connection location are generally equal. Adjustment means for threadably rotating the quill with respect to the hub so as to in turn adjust the spacing of cutter knives with regard to the die face in the form of a planetary gear system located at that end of the hub distal from the die face is further included. The knives are fixed to a knife carrier and in turn supported for rotation about the quill.
October 25, 1977
Date of Patent:
January 22, 1980
Walter Buchan, Gomer E. Kropa, Edward J. Winiarski
Abstract: Coal grinding apparatus for direct coal fired burner systems in which coal usage is regulated by a speed controlled roller grinding mill operated in conjunction with a speed controlled spinner separator to control the size and volume of the coal output to match the requirements of the burner, and means to transport and control the transport of the properly sized coal to the burner by either a negative or positive acting fan.
Abstract: A water actuated garbage disposer has an impeller chamber with an impeller having a plurality of fin-like projections on its periphery. A water jet at the generally planar faces of each of the projections imparts the driving force to the impeller. An outlet duct is disposed substantially in line with the water jet stream, thereby facilitating the removal of spent water from the impeller chamber. The impeller is coupled to an abrasion disc having a plurality of implanted abrading blades which may be arcuate, radial or chordal. When radial the blades may be centrifugally operated. The impeller is balanced and weighted to obtain a pre-selected moment of inertia and mass in order to optimize the operation of the disposer. The disposer has upper, central and lower separable chambers for ease in maintenance and assembly, the lower chamber containing the impeller. The upper chamber may contain abrading blades secured to interior walls.
Abstract: A semi-laminated security pouch for a tamper proof identification card is disclosed. The identification card to be protected by the security pouch has a glass bead security coating on a front face which provides an indication if indicia are tampered with on the face of the card. The pouch comprises front and rear film leaves with a heat reactivatable adhesive layer on the rear leaf card-facing surface. The rear surface of the card is centered against the rear leaf for lamination. The front leaf does not have a heat reactivatable adhesive layer thereon since such a layer would destroy the retroreflective visual characteristics of the glass bead security coating. The front leaf card-facing surface does, however, have the bond promoting coating thereon such that when the pouch is assembled, peripheral portions of the front leaf come in contact with peripheral portions of the rear leaf extending beyond the card edges.
Abstract: An improved business forms stationery assembly including plurality of continuous record webs that are disposed one on top of the other and that may be folded in zig-zag fashion, into a pack of alternate fold lengths. The record webs are joined together by a plurality of paper staple tongues that are oppositely directed in alternate fold lengths of the stationery assembly.
Abstract: Loose hay or the like is delivered into a progressively narrowing axial space between two rows of identical teeth which project towards each other from side locations on a pair of obliquely related wheels. The hay or other material is simultaneously compressed and advanced by the teeth as they come together. The teeth form axial boundaries for pockets or chambers in which the hay or other material is compressed into blocks. The radial boundaries of such pockets or chambers are formed by an annular outer wall carried by one of the wheels and an annular inner wall carried by the other wheel. One of the wheels is mounted for rotation in a fixed position. The other wheel is mounted for rotation by mounting means which can be shifted in position for the purpose of varying the axial space between the two wheels, for adjustment of the pocket size.
Abstract: A vacuum sizing apparatus is positioned downstream from an extruder along a path followed by a body of thermoplastics material as the body exudes in a heated, deformable state from the extruder. The apparatus includes structure defining an elongate sizing surface extending along the path of travel of the body. A multiplicity of vacuum channels are formed in the structure and open through the sizing surface for drawing outer wall portions of the body into conforming engagement with the sizing surface as the wall portions cool and rigidify while moving along the sizing surface. The structure includes a plurality of side-by-side structural segments, each of which defines a portion of the sizing surface, adjacent ones of which have mating side walls. The vacuum channels are of small cross section and are formed as grooves milled or ground in the side walls of the segments. A clamping system releasably clamps the segments together and permits their disassembly to provide access to the vacuum channels for cleaning.
Abstract: A process for attaching one or more layers of materials to a base or backing having an anvil in its composition. A backing has incorporated therein an anvil strip of high impact material with formed depressions for clenching staples driven through the layer or layers to be attached. The anvil strip may be a metal strip embedded in the spine of a binder or may be formed by the boundary line of a relatively hard material and a relatively soft material through which a staple or tack may pass and the layers may be a stack of paper or signature sheets.
Abstract: A binder for carpet samples has a sturdy slotted anchor attached to the binder back with the anchor raised from the binder back in the region of the slot. A binder post has a head at one end for engagement within the slot by a swinging movement of the post relative to the anchor. A pair of lugs on the post and post head coact with the anchor slot to limit rotation of the post during installation. The end of the post away from the anchor is threaded and receives a nut placed above a top flap of the binder. Strength, durability, convenience and economy of manufacturing are featured.
Abstract: Method and apparatus are disclosed for cyclically metering charges of a granulated wax-like or resinous material from a bulk supply and feeding such metered charges into a heated, pressurized reservoir. Each charge of the granulated material is fluidized with a stream of air under pressure to insure flow of the granules. The stream of air also serves to pressurize the reservoir and prevent the escape of hot air therefrom. Cooling of the reservoir inlet to prevent agglutination of the granules also is contemplated.