Abstract: Several methods and apparatus are disclosed for successively loading a predetermined number of elongated paramagnetic articles out of a temporarily stored mass thereof, initially confined within a magnetic field-defined storage area in parallel relationship, into precisely spaced arrays, with each array thereafter being transferred to an unloading station whereat the articles are simultaneously released to fall by gravity into respectively aligned receiving areas of an associated workpiece positioned therebelow. As a common, reciprocally mounted, article handling mechanism is employed to carry out the loading, transferring and unloading operations, and as no inversion of the articles is required to effect the unloading thereof, the composite apparatus advantageously is of simplified, reliable and rugged construction.
Abstract: A cured epoxy polymer having improved adhesive properties is disclosed. The epoxy polymer is the reaction product of a mixture comprising a resin component comprising (a) a diglycidyl ether based upon linoleic dimer acid, (b) an elastomerically modified epoxy resin blend and (c) a diglycidyl ether of bisphenol A and/or bisphenol F and a suitable curing agent. The reaction mixture is heated at a suitable temperature for a period of time sufficient to attain a full cure of the epoxy.
Abstract: A printing ink is disclosed. The ink comprises (a) a reactive resin combined with a second resin comprising a substantially anhydrous water-soluble thermosetting stable methylated urea-formaldehyde resin wherein the weight of the methoxyl substituents therein is between 28% and 40% of the weight of the resin and the molar ratio of the reacted formaldehyde in the resin to the methoxyl substituents is such that in the absence of organic solvent the resin at 25.degree. C. is soluble to the extent of at least 50% by weight in water and dissolves at least 50% of its weight of toluene, the polymeric form of the resin being not substantially in excess of tetrameric, the molar ratio of reacted urea to reacted formaldehyde in the resin and the molar ratio of reacted formaldehyde to reacted methanol therein being within the ranges:______________________________________ Molar ratio Ranges Urea :CH.sub.2 O :CH.sub.3 OH CH.sub.2 O :CH.sub.3 OH ______________________________________ Lower 1 2.2 1.3 1 1.10 Upper 1 2.8 2.
November 17, 1976
Date of Patent:
December 27, 1977
Western Electric Company, Incorporated
William James Baron, Patrick John Capano
Abstract: A probe for sensing the strength of the magnetic field that surrounds a current-carrying conductor has a square-loop magnetic material wrapped about a conductor which is placed in the magnetic field to be sensed. An alternating signal is applied to the conductor, of sufficient intensity to cause successive reversals of the polarity of the magnetic material. A sense winding around the magnetic material issues a switch signal every time the magnetic material reverses polarity. The switch signal is used to sample the alternating drive signal current in order to store the amplitude of the drive signal at the instant at which the magnetic material reverses polarity. The sampled signal amplitude is averaged over a period of time, and the resultant amplitude is a linear function of the strength of the magnetic field. A second conductor, magnetic material and sense winding are arranged in a position remote from the magnetic field in order to sense the effect of the Earth's magnetic field.
Abstract: In order to provide indirect memory addressing for a stored-program digital processor which is not normally equipped with facilities for indirect memory addressing, a multiplexer (electronic gang switch) is interposed between the memory address output register of a central processing unit (CPU) and the address input of the memory. Several memory locations are dedicated to the indirect addressing function. When one of these dedicated locations is addressed, a decoder stops the CPU while the memory fetches the contents of the addressed, dedicated memory location. This dedicated memory location contains the address of the desired data. This actual address of the desired data is read from memory and stored in a register. The multiplexer directs the output of the register to the address input of the memory. The memory then addresses the actual location of the desired data, and the CPU reads the desired data from the memory.