Abstract: Methods, systems, and devices for operational code storage for an on-die microprocessor are described. A microprocessor may be formed on-die with a memory array. Operating code for the microprocessor may be stored in the memory array, possibly along with other data (e.g., tracking or statistical data) used or generated by the on-die microprocessor. A wear leveling algorithm may result in some number of rows within the memory array not being used to store user data at any given time, and these rows may be used to store the operating code and possibly other data for the on-die microprocessor. The on-die microprocessor may boot and run based on the operating code stored in memory array.

Abstract: A bolster bearing having a flat bottom wall and an annular sidewall is disposed in the bolster bowl of a truck bolster, a radially extending annular flange on the bearing sidewall overlying an upper surface of the upstanding rim of the truck bolster defining its bolster bowl. Cooperating elements on the rim and on the bearing flange prevent rotation of the bearing from a first position relative to the bolster bowl. The bearing may be radially shifted from its first position to a second position upon disengagement of such elements followed by a reengagement of such elements at such second position in which the bearing is likewise prevented from rotation relative to the bolster bowl.

Abstract: A device for latching a sliding door member in place against a stationary frame structure includes an elongated hasp mountable on the door and engageable with a keeper secured to a bracket on the frame with which the hasp engages preventing it from moving laterally outwardly. A pair of cam elements are pivotally mounted on the bracket for movement about a common axis above the hasp, and have flat end surfaces directly overlying an end edge of the hasp for latching it against vertical upward movement. A stop pin on the bracket below such common axis engages with the cam elements for permitting one of them to pivot in only one direction while permitting the other cam element to pivot in only an opposite direction so that the hasp remains latched against vertical upward movement by one or the other of the cams even when subjected to forces having a tendency to cause the cams to pivot in either such direction.

Abstract: The coupler height of a railway car is adjustable by means of a shim disposed between the coupler carrier and the wear plate and inserted through an opening provided at one side of the striking casting. An enlarged central portion of the shim extends toward the draft bar yoke of the coupler to avoid any reduction of bearing surface between the coupler carrier and the wear plate. A portion of the shim also lies within the side opening, which opening is defined by an enlarged outwardly extending portion of the striking casting having holes therein in axial alignment with a hole in the shim portion for the reception of a fastener to retain the shim in place. The aligned holes are offset from the longitudinal centerline of the shim so as to effect a misalignment of the holes upon incorrect insertion of the shim.

Abstract: A rail car coupler, with the shaft thereof bearing against a coupler carrier, is vertically adjustable by means of serrated lock plates intermeshing with similarly serrated coupler carrier brackets. A minimum adjustment is therefore made possible equal to the size of a tooth of the serrations. Opposed bearing surfaces of the coupler carrier respectively lie in planes containing a trough between a pair of adjacent teeth of the bracket serrations and containing an apex of one of the teeth of the bracket serrations so as to permit a further relative adjustment of the planes containing the bearing surfaces by an amount equal to at least one-half the size of a tooth of the serrations when the coupler carrier is inverted 180.degree.. Serrations may be provided on opposed surfaces of the bracket to facilitate a half-space adjustment by inverting the brackets.

Abstract: Nailable flooring is constructed of identical floor units having roll-formed therein closed bottom nailing grooves of serpentine contour for the retention of nail fasteners held in place as they are deformed upon insertion into the grooves. The grooves are disposed between opposite side edges of the units and/or mating portions of such grooves are roll-formed along such side edges. The bottoms of the grooves are substantially triangular in cross-section thereby negating the crippling effect of each groove structure which thereby functions similarly to that of a beam web.

Abstract: A rail car coupler, with the shaft thereof bearing against a coupler carrier, is adjusted vertically by means of serrated lock plates intermeshing with similarly serrated coupler carrier brackets. Vertically spaced fastener openings in the lock plates are so disposed relative to the teeth of the serrations thereof as to permit relative adjustment of the brackets equal to the size of a tooth of the serrations while the lock plates are in a first position. And the lock plates permit a fine adjustment of the brackets upon relative movement thereof equal to one-half the size of a tooth of the serrations when the lock plates in one embodiment are inverted 180.degree. into a second position relative to the first position thereof. In another embodiment, such fine adjustment is effected as the brackets and the coupler carrier are inverted into a second position relative to a first position thereof. The lock plates in this embodiment are fixedly secured in place.