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Production
Records relating to the production of valves from the company. These range from drawings and photographs of the development and ordering of products, patent records legally protecting designs and the order process between customer and supplier. There are also a small number of samples of products for illustrative purposes.
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  • HOP/PR/1

    Photographs Subsubfonds

    20th century
    Large collection of photographs of production at Hopkinsons Ltd. This section includes Hopinsons in-house photography series, a large and very complete photographic record of Hopkinsons production output. The photographs were taken by Hopkinsons in-house photographer and the negatives and prints were meticulously managed in a precise record keeping system.
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  • HOP/PR/2

    Drawings Series

    20th cent.
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  • HOP/PR/3

    Patents Subseries

    20th century
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  • HOP/PR/4

    Contract inspection records Item

    20th century
    These records relate to the inspection of products designed and manufactured for contract customers, including power stations etc. Hinckley Point, Mayo Generating Station, They contain assembly sheets, detailed technical drawings and inspection documents.
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  • HOP/PR/5

    Production order index books Item

    1900-1939
    Order index books for valves and boilers ordered by Hopkinsons customers. Arranged by order number, including information on the date of the order, the drawing number, the quantity of product, size and description, the office reference and date of completion. Organised occasionally by quarter and occasionally on an annual basis.
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  • HOP/PR/6

    Factory production information and analysis records Subseries

    20th century
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  • HOP/PR/7

    Production samples and equipment Item

    20th century
    Examples of Hopkinsons production: valves, inspection gauges and tools.
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