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Expired
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Harold Malcolm Duncan
Frank Hinman Pierpont
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Individual
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Publication of GB190602995ApublicationCriticalpatent/GB190602995A/en
2995. Duncan, H. M., and Pierpont, F. H. Feb. 7. Milling. - Filleted corners o f openings are milled into sharp flatsideed corners by apparatus described primarily in connexion with the die-cases of type casting and setting machines. The case E, Figs. 1 and 2, is secured by projections C<5> and clamps C<6> on a work-holder C, sliding in adjustable guides on a frame which is secured on the table of an ordinary milling-macbine with a tool the end of which sweeps out a cone A'. The relative motion of the tool and work is such that the greater the mass of metal to be removed the greater the cutting-surface engaged, the point of the tool coming into work last.
GB190602995D1906-02-071906-02-07Improvements in or relating to Milling or like Machines.
ExpiredGB190602995A
(en)