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    Maier-Dailey Papers, HCEA Archives
    This model TC3 illustrates perhaps the best-known LeTourneau crane, the Tournacrane, powered and propelled by a Tournapull prime mover. Its descendants were produced into the late 1960s.
    Tom Berry
    May 14, 2025
    Robert G. LeTourneau developed single-axle cranes.
    Historical Construction Equipment Association
    The 3500-TC Mobile Crane. (Manitowoc Form No 12-57, 1959)
    Restored 1984 Mack R Model Walk-Around
    Raymond Q. Armington Collection, HCEA Archives
    The unique scraper wheel steering is demonstrated by what is believed to be a 1MDT-6SH. Rated at 10 yards, it was powered by an International Harvester TDRM diesel.
    swm_photo_81_cropped
    Tom Berry
    Sept. 17, 2024
    The sheepsfoot takes its name from the “technology” it emulated: the original compaction practice of driving a herd of sheep or other stock along the fill.
    Tom Berry
    Tom Berry
    July 3, 2024
    Before articulation, rigid-frame loaders included a few large-capacity models.
    Navistar Corp. image
    Model H tractor pulling a concrete dump body.
    April 24, 2024
    These ready-mix predecessors could carry 1 to 2 cubic yards of concrete.
    Bureau of Public Roads Manuscript Collection, Idaho State Archives
    Knox Yellow road scraper.
    Tom Berry
    March 19, 2024
    Horse-drawn scraper eased some of the manual labor.
    Doug Osborne Papers, HCEA
    Galion Little Master
    Tom Berry
    Feb. 13, 2024
    Cutting edge machines from the early 20th Century.