Vintage Motorized Pumpjack Oil Derrik Salesman Sample

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Mechanical salesman's model simulating the operation of an oilfield pumpjack, mounted to a painted wooden base and driven by an … Read more Mechanical salesman's model simulating the operation of an oilfield pumpjack, mounted to a painted wooden base and driven by an electric motor with chain-linked gearing. The articulated arm features a counterweighted head and vertical rod terminating in a cylindrical "well" housing, mimicking the up-and-down motion used in petroleum extraction. Painted in utilitarian industrial colors-yellow and olive green-the piece emphasizes function over finish, with exposed hardware, welded joints, and a visible drive system that clearly illustrates the transfer of motion from motor to walking beam. See less