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    • 9. 发明专利
    • Improvements in Nailing Machines.
    • GB189717421A
    • 1897-08-28
    • GB189717421D
    • 1897-07-23
    • LEE FRANK
    • LEE FRANK
    • 17,421. Lee, F. July 23. Nailing. - Relates to mechanism for feeding nails with overhanging heads in machines for nailing boots &c., the mechanism ensuring that the nail is always delivered point downwards. Fig. 2 s h o w s a vertical section of part of the machine, and Fig. 11 a section on c-c, Fig. 2. The nails S pass from the shoot B to a toothed wheel D fixed to a ratchetwheel M actuated by a pawl and a lever P with an incline L, against which acts the incline K on the reciprocating piece K carrying the awl K. The teeth on the wheel are cut at an inclination as shown in Fig. 2, and a gap is left at C', so that, on the nail head coming into contact with the casing, it is automatically pushed into the channel E. By the abovementioned mechanism and a spring catch M' engaging with holes in the ratchet-wheel M, the wheel D is rotated step-by-step to deliver the nails S one by one into the inclined shoot E. The nail first rests against the driver G, and when this rises falls between the grippers H beneath it.