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Department Archives Remove constraint Department: Archives Genre Photographs Remove constraint Genre: Photographs Creator Rittase, William M., 1894-1968 Remove constraint Creator: Rittase, William M., 1894-1968 Place Virginia--Hopewell Remove constraint Place: Virginia--Hopewell

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    • 1940-Jun-17

    Close-up view of several rolls of sheeted cotton linters mounted on spindles at the Hercules Powder Company's Ethyl Cellulose plant in Hopewell, Virginia. Per notations accompanying the photograph, the cotton was…

    • 1940-Jun-17

    General view of a washing tub in use at the Hercules Powder Company's Ethyl Cellulose plant in Hopewell, Virginia. Per notations accompanying the photograph, constant agitation and continual charges of water were used…

    • 1940s

    General view of an unidentified employee examining a control panel used in the production of ethyl cellulose at the Hercules Powder Company plant in Hopewell, Virginia. Ethyl cellulose manufactured by the Hercules…

    • 1940s

    Close-up view of a stock of ethyl cellulose manufactured at the Hercules Powder Company plant in Hopewell, Virginia. Ethyl cellulose manufactured by Hercules was commonly purchased by a variety of public and private…

    • 1940s

    Close-up view of several stacks of so-called "chemical cotton" manufactured at the Hercules Powder Company plant in Hopewell, Virginia. Chemical cotton, a type of purified cellulose obtained from raw cotton linters, is…

    • 1951

    Two views of employee Paul F. Brown feeding raw cotton linters (short fiber residues left on the cottonseed after the longer staple, aka the "lint" fibers, are removed by ginning) into a bale breaking machine in the…

    • 1951

    General view of bales of cotton linters (short fiber residues left on the cottonseed after the longer staple, aka the "lint" fibers, are removed by ginning) in storage at the Hercules Powder Company plant in Hopewell,…

    • 1951

    General view of an automatic banding machine in use in the Cellulose Department at the Hercules Powder Company plant in Hopewell, Virginia. The employees visible in the photograph are identified as Leroy Brown and John…

    • 1951

    Close-up view of a Fourdrinier machine in use at the Hercules Powder Company plant in Hopewell, Virginia. Per notations accompanying the photograph, this Fourdrinier machine was used to dewater sheets of so-called…

    • 1951

    General view of the production of carboxymethyl cellulose (CMC) at the Hercules Powder Company plant in Hopewell, Virginia. Also known as cellulose gum or tylose powder, CMC is a cellulose derivative commonly used as a…

    • 1951

    Close-up view of laboratory operator Percy L. Bell checking the composition of viscose solutions produced in the Cellulose Department at the Hercules Powder Company plant located in Hopewell, Virginia. The viscose…

    • 1951

    General view of a roll rewinder in use in the Cellulose Department at the Hercules Powder Company plant in Hopewell, Virginia. Per notations accompanying the photograph, the roll rewinder was used to produce smaller…

    • 1951

    Close-up view of laboratory operator Donald Stevens using a press to remove water from a sheet of so-called "chemical cotton," i.e. purified cellulose obtained from raw cotton linters, manufactured in the Cellulose…