Sewing – Elements – Frames
Patent
1975-05-07
1976-07-20
Larkin, G. V.
Sewing
Elements
Frames
112104, 11212119, 289 18, D05B 312
Patent
active
039700224
ABSTRACT:
A method for attaching a length of string to a segment of material such as a foam pre-form used in tampon manufacture comprising providing the string in proximity to the pre-form, drawing the loose ends of the string through the pre-form in intersecting divergent perpendicular directions to form a loop on the side of their entry into said pre-form, whereby the loose ends protrude therefrom, passing the protruding ends through the loop, and tightening the loop around the ends to form a knot. The apparatus useful in the above method comprises a pair of reciprocable needles adapted to extend into perpendicular intersection with the pre-form to engage and retract a length of string through said pre-form, a string tensioning means for placing said string in tension adjacent said pre-form, means in alignment with said tensioning means for severing a finite length of said string, and means laterally aligned with said pre-form and axially aligned with said needles for drawing the ends of said string into a knot.
REFERENCES:
patent: 2715374 (1955-08-01), Carrier
patent: 2769413 (1956-11-01), Bodard
patent: 3348866 (1967-10-01), Etz
patent: 3814469 (1974-06-01), Simon
Cooper Rey W.
Kopatz William H.
Watson Russell W.
Larkin G. V.
W. R. Grace & Co.
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