Lockstitch sewing machine

Details Lockstitch sewing machine Lockstitch sewing machine

1984-09-07

1985-12-31

Hunter, H. Hampton

Sewing

Special machines

Leather sewing

112239, 112242, 112274, D05B 1508

Patent

active

045613672

ABSTRACT:
A lockstitch sewing machine has a needle (22) and awl (24) mounted on a common pivot (52) and actuated each by a crank mechanism (40;72), the two mechanisms being mounted on a common crank shaft (38). Each mechanism is constituted by a bell crank lever (44;76); the two levers also being mounted on a common pivot (46). This latter pivot (46) is disposed intermediate the pivot (52) for the needle and awl and the crank shaft (38).

REFERENCES:
patent: 1498650 (1924-06-01), Fletcher
patent: 2015654 (1935-10-01), Ashworth
patent: 2780188 (1957-02-01), Schaefer, Jr. et al.
patent: 2928361 (1960-03-01), Ashworth et al.

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