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You've searched: Frank A. Banks Collection

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(439 results)



Display: 20

    • Stretching Bolts of the Scrollcase

    • Employees--Washington (State)--Grand Coulee Dam; Bolts & nuts
    • Bolts holding the sections of a scroll case together are actually stretched so as to make them exert a greater force than that of the water, which tends to separate them. The increased in length, determined by micrometer, is a measure of the force...
    • Bus Structure for Shasta Units

    • Hydroelectric generators; Employees--Washington (State)--Grand Coulee Dam
    • The 13,800-volt bus structure for one of the two 75,000 kilowatt Shasta units. The thrust bearing for the machine has been placed. An exciter remains to be placed on top of the unit.
    • Oil Circulating System for Turbine

    • Pumping stations--Washington (State)--Grand Coulee Dam
    • Motors, pumps, pipes, gauges, connections, and controls of the oil circulating system for the guide bearing of an Allis-Chalmers (Shasta) turbine. In case the oiling system driven by an alternative current motor fails, another, operated from a...
    • Scroll Case Elbow

    • Water tunnels--Washington (State)--Grand Coulee Dam; Concrete
    • Special elbows were required to connect a Shasta turbine scroll case in one turbine pit with a penstock in an adjoining pit because the Shasta turbines turned in a "left-handed" direction while the Grand Coulee units turn "right-handed. Each inlet...
    • Lubricating Guide Bearings

    • Pumping stations--Washington (State)--Grand Coulee Dam
    • The guide bearings on the 150,000 horsepower Newport News turbines are lubricated with oil circulated by lower-pressure pumps driven by alternating current motors. Each turbine is provided with a standby pump, which is driven by direct current from...
    • Sawmill Erection

    • Sawmills--Washington (State)--Grand Coulee Dam; Reservoirs--Washington (State)--Grand Coulee Dam
    • The Bureau of Reclamation is erecting a sawmill and planer, with a normal daily capacity of approximately 25,000 board-feet, on the west shore of the reservoir, in the area of Ryan's dump. The sawmill building (at the left) is of heavy timber...
    • Assembly Building Nearing Completion

    • Construction; Hoisting machinery
    • To expedite the assembling of new turbine and generators and to store government equipment, the Bureau of Reclamation is constructing a large assembly building on the west shore, upstream from the dam. The structure ultimately will be 357 feet...
    • Transformer Deck

    • Spillways--Washington--Grand Coulee Dam; Power plants--dams--Washington (State)--Grand Coulee Dam; Electrical apparatus
    • For the purpose of reducing the spreading of spray from the spillway over transformers and other equipment, the left training wall was built up from El. 1034 to El. 1068.18 at the powerhouse, and was increased one foot in height at its highest...
    • The Blue Ox

    • Tugboats--Washington (State)--Grand Coulee Dam; Bulldozers; Trucks--United States--Washington (State)--Grand Coulee Dam
    • The "Blue Ox," a small tug driven by a 125-horsepower Diesel motor, was trucked from the reservoir above the Grand Coulee Dam to the river below, to be used in sounding operations, part of a study to determine the necessity for widening the river...
    • Mimic Board of Generator Connections

    • Control rooms--Washington (State)--Grand Coulee Dam; Diagrams
    • This mimic board in the main control room shows the interconnections of generators, transformers, power circuits, associated switch yard equipment, and the outgoing transmission lines, as arranged on December 14, 1942, except that Spokane lines...
    • Generator Control Cubical

    • Control rooms--Washington (State)--Grand Coulee Dam
    • This is the generator control cubicle of the unit-control station for the No. 1, 75,000-kilowatt Shasta unit in pit L-7. It is situated in the governor gallery at elevation 951. The station will start the turbine, indicate the loads and...
    • Shaving to Size

    • Employees--Washington (State)--Grand Coulee Dam; Hydroelectric generators; Grinding machines
    • For the purpose of improving the operation of turbine L-1, the trailing edges of the runner blades were reduced in thickness by chipping and grinding.
    • Tight fit between Stator and Rotor

    • Hydroelectric generators; Employees--Washington (State)--Grand Coulee Dam; Hoisting machinery
    • A tight fit. The clearance between the huge 25-foot rotors and the stators of the two 75,000-kilowatt Shasta Dam generators, being installed at Grand Coulee Dam to make additional power available for war industries, is only 5/8 inch. In lowering...
    • Mixing Plant Deconstruction

    • Concrete mixers--Washington (State)--Grand Coulee Dam; Hoisting machinery
    • Like many old construction landmarks, the CBI concrete mixing plant, often aptly referred to as "the house of magic" because of its almost-automatic operation, is disappearing from the project. It was erected early in 1938, to produce the 6,000,000...
    • Electric Tower Construction

    • Electrical apparatus; Electric lines; Employees--Washington (State)--Grand Coulee Dam; Fog--Washington (State)--Grand Coulee Dam
    • Workmen using a gin-pole to construct one of several towers which will carry a 230,000volt transmission line from the left powerhouse to the left switchyard.
    • Niles Radial Drill Press in Work

    • Drilling & boring machinery; Employees--Washington (State)--Grand Coulee Dam
    • A six-foot Niles radial drill press, in the machine shop of the left powerhouse, was used to bore a re-babbited wear-ring in the stuffing-box of turbine L-3.
    • Conveyor of New Mixing Plant

    • Conveying systems--Washington (State)--Grand Coulee Dam; Concrete mixers--Washington (State)--Grand Coulee Dam; Construction
    • A bucket conveyor will be used to lift aggregate from timber bunkers to the top of the new Bureau of Reclamation mixing plant, where a chute will direct the flow into any one of three compartments of a storage bin.

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