Abstract: Aluminum is manufactured in a Hall-Heroult cell employing a non-consumable anode having a substantially flat working surface produced by a process wherein at least the portion of a conductive core that is exposed to the electrolyte bath is coated with a composition of higher resistivity than the core composition to provide uniform current density at all regions of the working surface of the anode.
Abstract: Thread material is removed from the non-load bearing flank of a selected number of threads on each side of the center thread of a nipple to provide increased strength for an electrode joint formed therewith.
Abstract: In a process for producing carbon or graphite articles, baked carbonaceous articles are impregnated with an aqueous solution of lignin sulfonate complex prior to carbonization or graphitization. The carcinogenic effects of conventional impregnants are eliminated, and impregnation temperatures are lowered significantly.
Abstract: A method for separating solids from a liquefied coal slurry resulting from the SRC process utilizes an improved carbon filteraid material prepared by flash heating thermally expandable coal particles under controlled conditions.
Abstract: Low sulfur calcined coke having an adequate density value for industrial consumers is produced from high sulfur raw coke by treating the coke in three heating stages under controlled conditions, one of the stages being in the presence of added hydrogen.
Type:
Grant
Filed:
June 27, 1980
Date of Patent:
September 22, 1981
Assignee:
Great Lakes Carbon Corporation
Inventors:
Harry L. Hsu, Edward E. Hardin, Lloyd I. Grindstaff
Abstract: An acrylic fiber bundle is rapidly thermally stabilized in an oxidative atmosphere by exposure to a selected temperature profile as the fiber passes through varying density ranges during stabilization.
Abstract: The compound 4,4,4-trichloro-1,2-epoxy butane is utilized as a coupling agent for carbon fibers and resin matrix material in the production of carbon fiber reinforced composites to enhance the bonding characteristics of the fiber and resin while improving the flexural strength of the final composite structure.
Abstract: A sulfur electrode for a sodium-sulfur secondary battery comprises a carbonized chopped graphite fiber-resin composite structure impregnated with sulfur.
Abstract: Low sulfur calcined coke is produced from high sulfur raw coke without substantially lowering its bulk density by heating the coke at a first temperature such that no more than about 70 wt.% of the volatile matter is removed therefrom and then heating the partially devolatilized coke at a higher temperature sufficient to effect calcination and desulfurization.
Type:
Grant
Filed:
March 1, 1978
Date of Patent:
July 10, 1979
Assignee:
Great Lakes Carbon Corporation
Inventors:
Edward E. Hardin, Dean H. Guffey, Lloyd I. Grindstaff
Abstract: The threads at the ends of a nipple for joining two electrode sections are chamfered, or chamfering is incorporated on the threads at the base of the electrode sockets, to provide increased flexural strength and thermal shock resistance for an electrode joint formed therefrom.
Abstract: A newspaper delivery box adapted to support and attach a mailbox thereto has a support insert provided therein to lift a newspaper contained in the box away from the bottom of the box to thereby protect the newspaper from water contained thereon. Optionally, at least one divider is provided in the box to retain a plurality of newspapers within the box.
Abstract: A sulfur electrode for a sodium-sulfur secondary battery comprises a mixture of chopped graphite fibers and sulfur formed into a solid composite structure.
Abstract: A newspaper support for a newspaper delivery tube is provided which comprises a wedge surface having a length greater than one-half the length of the tube. The support may be molded directly in the bottom of the tube, or may be provided with a clamp for insertion into an existing delivery tube.
Abstract: A bracket for mounting a newspaper delivery box or the like to a support structure comprises an elongated rectangular base having a single corrugation formed therein, the corrugation having means for mounting the bracket to the support structure. Preferably, means are provided for bracing the bracket to the support structure and an arm is provided to supply additional support to a box mounted thereon.
Abstract: A pad of conductive material composed of particulate carbon and an organic binder is provided which acts as a spacer between coaxially placed carbon electrode columns when they are subjected to resistance heating by passing electric current lengthwise through the columns from electrodes held against the ends thereof.
Type:
Grant
Filed:
November 4, 1976
Date of Patent:
April 25, 1978
Assignee:
Great Lakes Carbon Corporation
Inventors:
Leslie Harrisville Juel, Louis Arpad Joo', Kenneth Wayne Tucker
Abstract: A newspaper support is provided which comprises a horizontally corrugated wedge of about one-half the length of a newspaper delivery tube and at least one-half the interior width thereof. The support possesses a reversely turned forward clamp portion to engage the lower front edge of the tube and at least one drainage hole at each trough of the corrugated surface.
Abstract: An insert bracket is provided for insertion into a newspaper tube of one-piece elongated, generally cross-section, hollow body construction, open at one end and closed at the other, which insert comprises three descending legs connected at the top, two of which are opposing legs which follow generally the interior contours of the tube terminating at about the lower interior sides of the tube, and the third lying flat against the rear of the tube; from the connection of the legs is attached a spring steel newspaper support member which first descends to about the middle of the tube then forms a wide ascending arch nearly to the top of the tube terminating near the front of the tube in a reverse bend to act as a finger hold to lower the clip when placing a newspaper between the insert bracket and the inside top of the tube.
Abstract: A bracket for attaching a sign or box to a mailbox of conventional design having a door at one end and a panel at the other, said panel terminating in a bead co-planar with the panel, such bracket comprising a bar adapted to lie in contact with the top of the box, a first fastening member at one end of the bar comprising a slot adapted to pass over the upper snap bar of the mailbox and a second fastening means at the other end comprising a V-shaped assemblage of bars attached to the aforesaid bar at the apex of the V and at right angles thereto and having inturned sides near the open end of the V adapted to pass over the bead of the mailbox, said V-shaped assemblage of bars adapted to lie in contact with the mailbox end and of such length that the bars co-act with the bead at a point below the curved portion of the mailbox end.