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    • Historical Equipment

    Brown Hoisting Machinery Co. catalog, 1919
    Eight_wheeled_excavator
    Historical Equipment

    A History of Wheeled Excavators

    Tom Berry
    Oct. 15, 2024
    Examples from the early 20th century.

    Historical Equipment

    Bureau of Public Roads Manuscript Collection, Idaho State Archives
    Knox Yellow road scraper.
    Doug Osborne Papers, HCEA
    Galion Little Master
    HCEA archives
    LeTourneau-Westinghouse C Tournadozer
    Mixermobile Manufacturers, HCEA Archives
    Mixermobile Twin Truckmobile
    Historical Equipment

    Mixermobile Twin Truckmobile powered by twin 90-horsepower engines

    Tom Berry
    Sept. 22, 2023
    Built in the early 1940s, the Twin Truckmobile hit a road speed of 50 mph.
    Caterpillar image, Maier-Dailey Papers, HCEA Archives
    On a road job near Galva, Illinois, in September, 1938, a Cat D4 with a High Loader is spreading fill, plus towing a disc and a pneumatic roller. It also ditched, placed pipe, and cleared brush. The machine handled excavation as well, including overburden, gravel, and earth and rock cuts.
    Earthmoving

    The Trackson High Loader attachment

    Tom Berry
    July 5, 2023
    Primarily used with Caterpillar tractors
    National Inventors Hall of Fame
    Nihf Bobcat
    Earthmoving

    Skid Steer Prototype Arrives at Inventors Museum

    Rod Sutton
    April 26, 2023
    On site for Hall of Fame celebration
    Presidio
    Earthmoving

    How earth was moved for the Golden Gate Bridge

    Tom Berry
    March 17, 2023
    The world famous Golden Gate Bridge was built in the mid-1930s. Not so well known was the considerable earthmoving required to construct the approaches on U.S. Highway 101.California...
    HCEA archives
    The Drag Scraper Derrick is especially adapted for conditions requiring this means of handling material, but where the high cost of a dragline excavating machine is prohibitive. This derrick is made convertible, employing our improved fittings. It may be used for drag bucket work and block hoisting. It may be mounted on skids and rollers, or wheels mounted on wide gauge track to suit the nature of the contract on which it is to be used. When writing for prices and information, give full particulars as to the work to be done and the kind of material to be handled.
    Earthmoving

    The NECO Stiffleg Excavator

    Tom Berry
    Jan. 27, 2023
    The Drag Scraper Derrick is especially adapted for conditions requiring this means of handling material, but where the high cost...