Abstract: An austenitic manganese steel microalloyed with nitrogen, vanadium and titanium used for castings such as mantles, bowls and jaws manufactured as wear components of crushers in the mining and aggregate industries, hammers used in scrap shredders, frogs and switches used in railway crossings and buckets and track shoes used in mining power shovels. These novel compositions exhibit a fine grain size having carbonitride precipitates that result in castings having a wear life 20-70% longer than prior art castings. The austenitic manganese steel includes, in weight percentages, the following: about 11.0% to 24.0% manganese, about 1.0% to 1.4% carbon, up to about 1% silicon, up to about 1.9% chromium, up to about 0.25% nickel, up to about 1.0% molybdenum, up to about 0.2% aluminum, up to about 0.25% copper, phosphorus and sulfur present as impurities in amounts of about 0.07% max and about 0.06% max. respectively, microalloying additions of titanium in the amounts of about 0.020-0.

Abstract: An austenitic manganese steel microalloyed with nitrogen, vanadium and titanium used for castings such as mantles, bowls and jaws manufactured as wear components of crushers in the mining and aggregate industries, hammers used in scrap shredders, frogs and switches used in railway crossings and buckets and track shoes used in mining power shovels. These novel compositions exhibit a fine grain size having carbonitride precipitates that result in castings having a wear life 20-70% longer than prior art castings. The austenitic manganese steel includes, in weight percentages, the following: about 11.0% to 24.0% manganese, about 1.0% to 1.4% carbon, up to about 1% silicon, up to about 1.9% chromium, up to about 0.25% nickel, up to about 1.0% molybdenum, up to about 0.2% aluminum, up to about 0.25% copper, phosphorus and sulfur present as impurities in amounts of about 0.07% max and about 0.06% max. respectively, microalloying additions of titanium in the amounts of about 0.020-0.

Abstract: A binding assembly for attaching a boot to a snowboard, designed in a manner to avoid cavities that can accumulate ice and snow and defeat its operation. The system includes first and second boot mounted bales in the form of rigid loops that extend from each side of the boot soles, and a pair of bindings attached to the snowboard. Each binding has a base including elongated, slotted holes located on the circumference of a circle through which bolts are placed to secure the base to the snowboard with a friction washer therebetween. The elongated holes allow for rotational adjustment of the binding. A hook-shaped structure extends from one side of the base with the hook facing outward. On the opposite side of the base is a camming structure with a downward and outwardly sloping surface ending in a bale-receiving notch.

Abstract: A binding assembly for attaching a boot to a snow board, designed in a manner to avoid cavities that can accumulate ice and snow and defeat its operation. The system includes first and second boot mounted bales in the form of rigid loops that extend from each side of the boot soles, an adjustable boot insert and a pair of bindings attached to the snow board. Each binding has a base including elongated, slotted holes located on the circumference of a circle through which bolts secure the base to the snow board with a friction washer therebetween, allowing for rotational adjustment of the binding. A hook-shaped structure extends from one side of the base with the hook facing outward. On the opposite side of the base is a camming structure with a downward and outwardly sloping surface ending in a bale-receiving notch.

Abstract: A latch assembly for an excavator dipper of the invention includes a latch bar slot having a first opening, a second opening and a side wall. An annular projection protrudes from the latch bar slot side wall and has an upper surface and a side surface. A latch bar is slidably and removably mounted in the latch bar slot. The latch bar has a first portion, a second portion and a tapered portion located between the first and the second portion. The first portion has a larger cross-sectional area than the second portion. An upper retainer insert assembly is removably carried in the latch bar slot between the first opening and the annular projection.

Abstract: A binding assembly for attaching a boot to a snow board, designed in a manner to avoid cavities that can accumulate ice and snow and defeat its operation. The system includes first and second boot mounted bales in the form of rigid loops that extend from each side of the boot soles, and a pair of bindings attached to the snow board. Each binding has a base including elongated, slotted holes located on the circumference of a circle through which bolts are placed to secure the base to the snow board with a friction washer therebetween. The elongated holes allow for rotational adjustment of the binding. A hook-shaped structure extends from one side of the base with the hook facing outward. On the opposite side of the base is a camming structure with a downward and outwardly sloping surface ending in a bale-receiving notch.

Abstract: Foundry molds are made principally from a mixture of refractory sand, a binder and a catalyst. The temperature of recycled sand is measured and a cooling medium is contacted with the sand. The flow of the cooling medium is controlled to cool the sand to a temperature within a predetermined temperature range which is slightly above a measured dew point temperature. Controlling the sand temperature to a temperature slightly above the dew point temperature prevents moisture condensation in the sand which interferes with binder curing to provide increased strength and controlled shelf life in the sand, binder and catalyst mixture.

Abstract: A method and arrangement for support of contact elements of hammermills and the like are disclosed in which a hardenable liquid bonding material is flowed into a chamber defined by registering recesses in facing relatively slidable surfaces of contact and support elements, the material being allowed to harden to define a key preventing relative slidable movement of the elements. A tongue-and-groove type of connection is provided for allowing the relative slidable movement while positively limiting relative movement in any direction in a plane transverse to the direction of the relative slidable movement.

Abstract: A method and arrangement for support of contact elements for material treating applications are disclosed in which a hardenable liquid bonding material is flowed into a space provided between surface areas of support and contact elements, the material being allowed to harden to provide a solid element which acts in compression to resiliently oppose relative movement of the elements. The space preferably has a cross-sectional configuration such that a wedging action is developed in response to relative movement of the elements. The holding element may be effectively burned out for removal and replacement of the contact element.