Abstract:
An end plug for a hollow ball bat. The end plug has a substantially rigid inner plug member and a resiliently compressible outer plug member secured to the inner member. The outer plug member has a periphery provided with a generally cylindrical lower portion and an upper portion separated from the lower portion by an outwardly open annular recess. The inner plug member has a generally radially outwardly directed stabilizer portion which extends radially outwardly at least to a position adjacent to the periphery of the outer plug member. The outwardly directed stabilizer portion of the inner plug member may be divided into a plurality of individual stabilizer segments and may be provided with underlying reinforcing members. A hollow ball bat having a generally cylindrical barrel portion and a generally cylindrical handle portion. At least one of the barrel and handle portions terminating in an open end provided with a transversely inwardly directed flange which is engaged within the annular recess of the end plug to provide an effective mechanical joint between the bat and the end plug. The composite end plug serves to provide both sound and vibration deadening means and integral structural reinforcing means resisting relative axial movement between the end plug and the ball bat.
Abstract:
A hollow metal ball bat and method of making the same. The bat is formed from a unitary metal tube having a completely open end at one end thereof and a partially or completely closed, integral end wall at the other end thereof. A portion of the tube including the open end thereof is reformed to provide the portion with a reduced wall thickness which, in turn, is reduced in diameter to form the handle portion of the bat. An intermediate portion of the tube tapers between the handle portion and a barrel portion having the diameter of the original tube and the closed end wall. The reduction in diameter increases the thickness of the wall of the handle portion to a thickness approximating that of the barrel portion of the bat so that the ratio of the weight per unit length of the handle and barrel portions thereof is substantially the same as the ratio of their diameters.
Abstract:
LOWERING IRON CONTENT BY ADDITION OF SLAKED LIME TO THE BLOW-OFF LIQUOR RESULTING FROM DIGESTION OF THE SOLUTION FORMED BY LEACHING A SODA-LIME SINTER PRODUCT FROM AN ALUMINA SOURCE.
Abstract:
A method of manufacturing an electrical coil comprising providing an electrically conductive strip which is superposed and adhesively secured to a dielectric web having nonplanar portions intermediate the adhesive and the transverse edges of the dielectric web. Effecting transverse expansion of the dielectric web to a width greater than the conductive strip by compressing the laminated strip. An alternate laminate structure wherein some or all of the nonplanar dielectric web portions are loosely bonded to the conductive strip in such a fashion as to permit transverse expansion of the dielectric web responsive to application of a compressive force. In one form of the invention, the laminated conductive strip is wound into coil form under sufficient winding tension to cause sequential application of compressive force to successive wraps of said coil in order to transversely expand the dielectric web. The dielectric web serves to insulate edges of adjacent conductive wraps of the coil. Establishing a multiple width laminate of the conductive strip and subsequently longitudinally slitting the multiple width laminate into a number of individual laminated strips. An electrical conductor-dielectric laminate having an elongated electrically conductive strip and a dielectric web adhesively secured to the conductive strip. The adhesive securing the conductive strip to the dielectric is spaced inwardly from the transverse edges of the dielectric web. The dielectric web has nonplanar portions between the adhesive and the transverse edges to provide a restricted width. The dielectric web has a restricted width generally equal to the width of the conductive strip and an expanded width greater than the width of the conductive strip. An electrical coil wound from the electrical conductor-dielectric laminate having the expanded width dielectric web serving as an electrical insulator between adjacent conductive wraps of the coil.
Abstract:
A method of manufacturing a welding electrode or filler rod by cleaning the surface of an aluminum wire rod and applying to the cleaned surface an aqueous solution of an alkali metal silicate having a concentration of greater than 0.5 percent for a period of greater than 5 seconds at a temperature in excess of 140*F in order to establish a thin, oxidation resistant reacted silicate coating on the aluminum surface. Subsequently rinsing and drying the coated aluminum wire or rod. The reacted silicate coating is provided in such a fashion that it has a thickness such that the outermost 1,000 angstroms of the aluminum surface has about 0.10 to 1.25 percent silicon. An aluminum welding rod or electrode having a thin reacted oxidation barrier coating on the exterior surface thereof. The oxidation barrier coating is such that the outermost 1,000 angstroms of the wire surface contains about 0.10 to 1.25 percent silicon and preferably about 0.50 to 0.80 percent silicon. The oxidation resistant coated surface is characterized by resistance to appreciable crazing and flaking responsive to deformation of the aluminum wire.
Abstract:
A PROCESS FOR PRODUCING AN OPAQUE COATING ON A SUBSTRATE COMPRISING APPLYING TO SAID SUBSTRATE A COMPOSITION COMPRISING MINERAL SPIRITS OR STODDARD SOLVENT, CELLULOSE ACETATE BUTYRATE OR CELLULOSE ACETATE PROPIONATE HAVING AN HYDROXYL CONTENT OF ABOUT 4.5%, A UREA-FORMALDEHYDE OR MELAMINE POLYMER, A CROSS-LINKING CATALYST, A PLASTICIZER, AND A LACQUER SOLVENT AND CURING SAID COMPOSITION ON SAID SUBSTRATE BY HEATING.
Abstract:
SELECTIVE INTERFACIAL BOUNDING OF MOLTEN METAL CHLORIDE ELECTROLYTE BY NITRIDE-BASED REFRACTORY MATERIAL IN CELLS FOR PRODUCTION OF ALUMINUM AND CHLORINE BY ELECTROLYSIS OF ALUMINUM CHLORIDE.
Abstract:
An elongated, magnetic flux impeding means is provided in the magnetically conductive shell of an electrolysis cell, and extends in a direction substantially perpendicular to the direction of a magnetic field component intermittent flow of current, in which a saturated mono-or polyvalent ether or a lower alkanoic acid is added to the reaction mixture.
Abstract:
Aluminum powder coated with isostearic acid exhibits substantially no dusting during handling thereby enhancing safety and environmental aspects.
Abstract:
Introducing small amounts of cobalt, nickel, or iron into a weld joint between members of aluminum and its alloys substantially eliminates weld porosity. These additives may be included in the rod or wire used to provide the weld filler metal.