Abstract: An improved method for producing one-piece cutter body members for comminuting apparatus for shredding, crushing and grinding bulk solid waste materials is provided. The process creates one-piece cutter body members having cutter teeth distributed along the length of the body members for rotation when in fixed engagement with twin or multiple parallel shafts of the bulk solid waste material comminuting apparatus. The resulting one-piece cutter body members are adaptable to intermeshing comminuting action each having cutting teeth which may be shaped for cutting in both of two opposite directions of rotation.

Abstract: A process for producing multipiece complementary tooling castings is disclosed in which hollow internal surfaces are cast in a mold having a soft, low strength sand core piece to define such hollow portions and external surfaces are cast against hard, resin-bonded sand mold surfaces. The castings are removed from their respective molds while still warm and nested and pressed together to bring their working surfaces into conformance with each other. The result of this practice is a set of tool pieces that require little machining and display high accuracy in their as-cast condition.

Abstract: A key manufacturing method, which includes a first procedure to produce key bodies through material shape molding, side-edge cutting process, thickness, curvature and length milling process, bitting forming process, and numbering and classification process according to shape of bitting; a second procedure to produce sheaths through copper rod planing process, conical front end milling process, groove lathing process and opposite inner wall trimming process; and a third procedure to fixedly fasten a key body in a sheath to form a unitary round key.

Abstract: A method of manufacturing a composite chip-removing tool which includes a tool body of a material which is in its molten state above a predetermined melting temperature, and at least one tipping element secured to the tool body, comprises positioning the tipping element on a model of the tool body that consists of a material that melts at a temperature considerably lower than the predetermined melting temperature, in a position relative to the model which the tipping element is to assume relative to the body, and simultaneously forming the tool body and a durable mechanical connection of the tipping element to the tool body in a precision casting operation involving replacement of the material of the model with the material of the tool body in its molten state. The model may be produced prior to or simultaneously with the positioning of the tipping element on the model.

Abstract: A method for assembling earth drill bits starts with a hollow shank body with a hollow pin with API regulation threads, for connection to a drill pipe, extending from one side, and hollow nozzle legs extending from the other side cast as a one piece investment casting. Separate leg members are rough formed and machined to shape having a bit body portion, depending leg, and inwardly and downwardly extending bearing journal. Conical roller cutters are supported for rotation on the bearing journals. A passage formed through the bit body portion and depending leg provides for lubrication of the conical roller cutters. The conical roller cutters are secured in place by a liquid lock formed by filling a cavity between the interior of the cutter cone and the journal bearing which is filled with liquid and sealed.

Abstract: A four-bladed chuck for attachment to a drive spindle of a veneer lathe. The blades include a first flat side for providing a driving area and a second side in a plane perpendicular to the first side of an adjacent blade. The bottom of the second side extends outwardly from the chuck at the outside of the chuck providing an uprise at the outside of the chuck for holding an end of the log for reducing splitting of the log end and holding a split log together. The plane of the second side is approximately 15 degrees relative to the longitudinal axis for reducing splitting. The blades in the uprise are shaped and formed by circular end mill cutter or by casting.