Double lock tufting button

Details Double lock tufting button Double lock tufting button

1976-03-11

1977-03-22

Gelak, Bernard A.

Buckles, buttons, clasps, etc.

Button with fastener

242305TP, 24102T, 24130, 5356, 24113R, A44B 122, A44B 118

Patent

active

040128121

ABSTRACT:
Tufting button with double series-lock hook entrance to prevent twine loop backing out through the entrance comprising symmetrical down-coming lips at the second lock to define a well for the final resting place of the twine loop and a further downwardly opening mouth opposing the opening formed between the two down-coming lips, the shank of the button hook containing the hook and such locks providing a one-way guiding surface towards the first lock to facilitate rapid installation of the twine loop by avoiding back and forth movement or fishing for the opening, the button hook providing high thickness for strength in the region of the second lock because of its low profile construction and in the case of fabric covered buttons, having a rough surface on the sidewalls to prevent slippage of fabric from the button back.

REFERENCES:
patent: 108739 (1870-10-01), Taylor
patent: 205402 (1878-06-01), Marcellus
patent: 399831 (1889-03-01), Burson
patent: 2016157 (1935-10-01), Rosberger
patent: 3654671 (1972-04-01), Berning
patent: 3829935 (1974-08-01), Critchfield

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