T. S. Harrison & Sons, Ltd., Heckmondwike, West Yorkshire, England, was established in 1896. By 1900, they were manufacturing a treadle lathe. In 1941, the firm was taken over by the Brooke Tool Co. for war production and in 1971 was sold to the 600 Group.
Very limited Harrison metal-lathe parts and service for North America are available from Clausing Industrial. Harrison manuals are available for free download from Harrison, and that linked page includes a 1-800 for parts and service.
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