Abstract: A book binding process and apparatus are shown wherein polyurethane adhesive (PUR) attaches a crepe portion of a book binding to a book block and hot glue attaches the crepe portion to the book cover. The PUR delivery system includes an inclined trough positioned adjacent a polyurethane adhesive delivery roll. A polyurethane adhesive source delivers polyurethane adhesive upon the inclined surface of the trough and the polyurethane adhesive is metered onto the roller as a function of the separation of the leading edge of the trough and the roller.

Abstract: A substrates processing device having a tank in which process solution is contained, a bottle communicated with the tank through a conduit and located above an object to be processed with the process solution supplied, a nozzle located under the bottle, a support for supporting the object to be processed, and a changeover device for making pressure in it negative through a conduit when the process solution is to be added to it and also making pressure in it normal through the conduit when the process solution is to be supplied to the nozzle.

Abstract: A method and apparatus for marking recyclable books permits the user to retain the recyclable value of the books while effectively deterring third-parties from reselling books which are intended to be recycled. The method includes transporting recyclable books past a designated marking location and marking at least a portion of the covers of the books with a distinguishing mark, and then transferring the marked books away from the marking location. The apparatus includes a marking device for marking the covers of the books, a transport device having a first and a second end for transporting the books past the marking device so that the covers of the books become marked thereby, and a removal device for moving the books away from the marking device after the covers of the books have been marked thereby.

Abstract: Comminuted wood is converted to a colored wood product useful as a mulch by feeding the comminuted wood into the lower end of an angularly upward positioned screw conveyor having an internal auger. The comminuted wood is contacted in a basin in the lower end of the conveyor by a liquid color-imparting agent, preferably an aqueous solution containing iron oxide pigment, carbon black pigment or a mixture of both pigments. After contacting, rotation of the auger draws the moist colored wood product towards the upper end, permitting runoff of excess liquid agent, which returns by gravity to the basin for further contacting with newly-fed comminuted wood. The liquid level in the basin is monitored and additional liquid agent is blended from water and pigment concentrate to maintain the level in the basin. Colored wood product discharges through a chute at the upper end of the conveyor for further drying, if necessary.

Abstract: A method and apparatus for continuously forming and depositing a layer of monomolecular amphiphilic molecules on a substrate, which include the continuous or intermittent removal of unused film after a substrate dipping. The amount of "dwell time" in which the film resides on the surface of the support media is controlled. A rotatable barrier provides a movable "film front" to achieve repeatable film pressures, consistencies and viscosities of high precision and accuracy.

Abstract: Apparatus for and related methods of forming three-dimensional objects out of a building material, which is normally solid but which is flowable when heated. In one embodiment a support material is used to fill in portions of layers which are not to be solidified as part of the object to provide support to otherwise unsupported portions of other layers. Advantageously, the support material is also normally solid and flowable when heated, and has a lower melting point than the building material enabling the support material to later be removed without damaging the object. In an alternative embodiment this support material can be used to build a support such as a web support or the like for supporting an object surface from a second surface.

Abstract: A solid three-dimensional article is formed from a liquid medium by initially coating a layer of the liquid medium on an apertured support plate. An initial cross-section or profile of the article then is formed by solidifying the liquid medium, or at least a portion thereof, on the support plate. An expandable member at a bottom of a container for holding a supply of the liquid medium, then is expanded an incremental amount to raise the level of the liquid medium in the container upward through the apertured support plate to a level above the support plate so as to form a meniscus around the solidified cross-section or profile of the article. The solidified cross-section or profile of the article then is coated with an additional layer of the liquid medium, causing the meniscus to break and the just-added liquid medium layer and the previous liquid medium to merge, whereupon the additional layer is essentially immediately solidified to form another cross-section or profile of the article.

Abstract: A processing liquid supply unit comprises a storage tank for storing a processing liquid, a sensor for sensing the amount of processing liquid stored in the storage tank, a refilling mechanism for automatically refilling the processing liquid into the storage tank when the sensor senses that the amount of processing liquid in the storage tank drops below the specified value and a processing liquid delivery mechanism for delivering the processing liquid from the storage tank to an object being processed.

Abstract: Apparatus for uniformly wetting a curvilinear surface of a length of tubing with solvent or other liquid. A wetting element such as a block of porous material has a curvilinear portion with a shape complemental to the shape of the surface to be wetted. The liquid is supplied to the wetting element by capillary action through a porous block or a sponge and passes into and through the wetting element, wetting the curvilinear portion. When the tubing to be wetted is brought into close contact with the curvilinear protein, the liquid is transferred to the tubing, forming a uniform coating on the surface thereof. Compressed air may be applied to the liquid through a pulse valve to urge the liquid into the wetting element as needed to re-wet the wetting element.

Abstract: A supply tank 11 from which adhesive will be dispensed by an applicator wheel 12 to the flap of a carton incorporates a valve assembly 16 connected through an inlet 20 to a pressurized supply of molten adhesive. The adhesive will enter pockets 19 in a rotating feed member 14 carried by a shaft 13 and mounted in a housing 15. If the level of adhesive in the supply tank 11 falls below the top of an outlet 21 from the housing 15 then any charge of adhesive within a pocket 19 passing the opening 21 will be dispensed into the supply tank 11 by gravitation. There is no direct connection between the pressurized supply to the inlet 20 and the outlet 21.

Abstract: A device is disclosed for supplying a glass raw material gas in the form of the mixed gas consisting of the glass raw material gas and the carrier gas to a vapor deposition device for producing a preform of an optical fiber, the supply device including a secondary raw material container having a pressurizable interior and provided adjacent to a main raw material container. The bottoms, or areas near the bottoms, of the two containers are interconnected via a pipe including at a mid portion thereof a switching valve and a device for adjusting the flow rate of the raw material liquid between the two containers. Liquid level detectors are provided in one or both containers to maintain the constant volume of the liquid raw material so as to provide a constant state inside the main raw material container. The operation of this device can easily be entirely automated.

Abstract: Providing an electrical conductor with an insulation layer having a layer of dielectric carrier with magnetically permeable particles dispersed within the carrier, in which homogeneity is maintained in a fluid mixture of a fluid carrier and the particles, the conductor is moved vertically through a die means to coat it with a fluid layer of the mixture, the fluid carrier is dried and thickness of the dried insulation layer is controlled. This control is achieved by monitoring the thickness or diameter of the dried layer and, if a variation exists between the monitored and required values, the rate of fluid flow through the die means is adjusted to adjust the monitored values towards that required.

Abstract: In apparatus for vapor phase growing N or P type semiconductor layers on semiconductor substrates supported by a rotary support disposed in a reaction furnace, and various types of gases are admitted into the furnace through a pipe line network and valves, there is provided a control device for ON-OFF controlling the valves according to a predetermined program. The control device comprises a memory region for storing a process program group including a group of process programs including informations regarding a time for designating a process of vapor phase growth in the reaction furnace, gases utilized, flow quantity thereof and furnace temperature, and a system program that decodes the program group for producing control signals for the valves.

Abstract: Quantity production of friction nuts prepared for subsequent fusion of thermoplastic resin particles deposited in thread grooves therein, in which the nuts are supported with their axes vertical, a fluid slurry of the particles in a liquid carrier is introduced into the threaded interior of the nuts to fill the threaded opening, including the thread grooves therein, to a predetermined level from the bottom of the nuts. Excess slurry is then drained from the bottom ends of the openings. In order to leave the threads clear of obstruction at the bottom of the nut, the deposited slurry, after partially drying, is removed from the bottom thread convolutions by repeatedly inserting and withdrawing a sponge-like material directly into and out of the lower end of the thread opening, or by strongly agitating a small quantity of water in the lower part of the threaded opening.

Abstract: To provide an improved apparatus for, and method of, applying paint to an article, particularly where it is desired that only a portion of the article have the paint applied thereto, a pump continuously supplies the paint from a storage tank to a chamber while the apparatus is in operation, with the paint returning from the chamber to the storage tank by way of an overflow pipe provided by the chamber, thereby to maintain at a predetermined level the paint in the chamber and in an associated bath in which the article to be painted is mounted. While the overflow pipe is closed by a normally open valve a displacement member is moved in the chamber below the predetermined level thereby to displace the paint in the chamber and in the bath to a level above this predetermined level with resultant application of the paint to the article.

Abstract: A toner solution circulation apparatus controls the application, concentration, and circulation by pumping of toner solution for an electrostatic imaging system by using a vacuum to draw toner solution, which is selectively mixed with concentrated toner solution and clear isopar, from a mixer manifold, and by using the rotating action of an applicator roll to pump, circulate, and mix toner solution, pigment, and isopar. A float and pivot block assembly maintains the correct isopar solution level in the chamber.A tube pump apparatus, having two tubes, one inside the other with sliding seals between the tubes, each tube having a ball type check (foot) valve at its end is submerged in concentrated toner solution in a supply container or bottle, to add pigment to the toner soltuion.The cycle time of the pump stroke is monitored by a Hall effect sensor.