Abstract: Zipper chain is continuously electrostatically coated with powder to produce good coverage of the teeth, even upon its more obscured surfaces. The web is substantially uncoated, and is protected against deleterious heat effects.

Abstract: An apparatus for controlling metal coatings on wire, strip, mesh or the like, emerging substantially vertically from metal baths, comprising an electromagnetic device adapted for situation at or below the point of emergence of the wire, strip, mesh or the like from the molten bath, said electromagnetic device providing an alternating electromagnetic field generated by single phase alternating electric current, and the positioning being such that the point of emergence is always within the electromagnetic field.

Abstract: One side surface of a continuous metal strip is continuously brought into contacted with a surface of a molten metal bath. The surface of the molten metal bath is flowed to the directions departing from both edges of the strip by a linear induction motor dipped in the bath. A one side surface metal coated product having no deposition of a molten metal on the reverse surface is obtained by the method of the present invention.

Abstract: Magnetic apparatus for dispensing toner of an electrophoretic printer having a hopper fed magnetic brush in conjunction with an active or passive magnetic backing plate is disclosed for transferring a uniform layer of toner to a transfer surface or belt for high speed printing purposes. The magnetic apparatus includes a magnetic roller having an inner magnetic surface and an outer cylindrical surface disposed in magnetic relationship to the toner and opposite one side of the transfer surface. The apparatus further includes a magnetic backing plate disposed opposite the other side of the transfer surface and juxtaposed to said magnetic roller for transferring the toner to the transfer surface.

Abstract: Electrostatic and magnetic transfer apparatus for conducting and magnetically attracting electronically conductive toner from the surface of a dielectric drum to a secondary substrate such as plain paper wherein a fixed permanent magnet disposed within a hollow cylindrical roller located at the image transfer point within a portion of a continuous loop of semi-conductive material supplies additional attractive force between the toner and the substrate exclusively at the image transfer point which in combination with the electrostatic transfer force applied to the imaged dielectric surface of the drum by means of a voltage potential applied to the hollow cylindrical roller, produces a dense, well defined pattern of intelligence replicating what was originally applied to the dielectric surface.

Abstract: This invention provides an improved method and apparatus for manufacturing magnetic recording media; specifically, that which is to be used in the manufacture of flexible, magnetic recording disks. The process provides a sequence of disorienting magnetic fields in different directions and of diminishing strengths to form a magnetic media in which the magnetic particles are essentially disoriented and the media is, thereby, devoid of modulated signal envelopes.

Abstract: A reproduction device of the electro-static type comprising an image carrier and a toner deposition device of the brush type consisting of a roller and a magnet arranged inside the same wherein the magnet and the roller are arranged so as to be stationary and the magnet is a multi-polar electro-magnet and has a three-phase winding.

Abstract: This invention relates to a linearly adjustable support mechanism in general, and more specifically to an apertured adjustment disc which provides a plurality of incremental linear, vertical adjustments, with no horizontal component, to raise and lower a supported member. This device has particular significance in a printing environment to align an ink or toner applicator member, such as a magnetic ink brush, with respect to a recording head or recording medium to insure that the magnetic brush will be parallel to the surface of the recording head or recording medium, to prevent the occurrence of a print intensity gradient in one instance or apply a uniform coating to the recording member in the other instance.

Abstract: Disclosed is a novel and improved magnetic separator or filter, as well as an apparatus for making such a magnetic separator. Each filter cell comprises a base plate and a plurality of fibrous filter elements made of magnetizable material and secured to the base plate. The filter elements extend in a mutually parallel spaced relation and substantially perpendicularly to the direction of flow of the fluid and to the plane of the magnetic field.

Abstract: A novel metallic squeeze-out tube suitable for packing paste-like foods whose flavor is regarded as important or the like is described herein, in which a resin powder layer is formed on its inner surface and on the outer surface of its neck portion by electrostatic painting and thereafter it is finished by baking, whereby a resin coating film that is free from pin holes and has a strong corrosion resistance can be formed.

Abstract: Apparatus including means for fluidically supporting and guiding a moving, cylindrically formed thin metal belt used in the transport of magnetic particles. Magnet pole pieces disposed adjacent the surface of the belt accommodate formation thereon of a non-translating, rotating bead of dry magnetic ink particles in the application of a uniform ink coating over the belt suitable for printing. The belt is held in substantially fluid tight relation along its opposed edges on bearing means affording rotation of the belt about a fixed, axially extending mandrel including fluid supply cavities and a magnet support cavity. The fluid supply cavities terminate in radially presented recessed orifices for discharging a fluid into a relatively close space provided between the mandrel and the belt, to the side of the latter opposite the surface on which the ink bead is formed by a magnet disposed within the magnet cavity.

Abstract: The apparatus for applying a stripe of colorant to a polymeric surface includes a spring biased, rotatably mounted circular magnet having a predetermined width. Non-magnetic walls extend radially outwardly from the magnet and are biased against the polymeric material. A retainer for holding a mixture of a ferro-magnetic carrier and a non-magnetic colorant is located within the magnetic field of the circular magnet. A rotatably supported roller on the side of the polymeric surface opposite the magnet supports the polymeric surface as it moves.The process of applying a stripe of polymeric colorant to an embossed electrically uncharged polymeric surface including rotating a wheel-shaped magnet, attracting a mixture of ferro-magnetic material acting as a carrier for a polymeric colorant to the magnet and pressing the magnet with the mixture against the polymeric surface.

Abstract: Apparatus for depositing magnetic material on a support member having an electrostatic latent image thereon.

Abstract: A device develops an electrostatically charged image formed on a photoelectroconductive layer with toner particles bearing a residual magnetization. The toner particles are provided on a vessel and in an alternating magnetic field to be rotated and repeatedly rebounded while charged, so as to be attracted onto the charged image.

Abstract: An improved magnetic brush for transferring toner to a latent image in a magnetic printing machine comprises a rotatable applicator cylinder disposed around a multipole magnetic stator. The two poles of the stator lying closest to the image are excited with magnetic fields of like polarity to minimize interaction between the magnetic brush field and the recorded magnetic image.