Textiles: weaving – Warp manipulation – Shedding
Patent
1988-11-18
1990-04-03
Jaudon, Henry S.
Textiles: weaving
Warp manipulation
Shedding
D03C 904
Patent
active
049131940
ABSTRACT:
A lightweight frame slat for use in a heddle frame assembly. Each of said slats comprises an upper hollow portion and a heddle bar support portion integral with and extending from the hollow elongated portion. The hollow portion is made up of a vertically extending back portion and a vertical front portion so that when the front portion is in place three longitudinal cavities are formed. Adjacent each of the edge of the hollow elongated upper portion is disposed elongated stiffening bars of a carbon fiber reinforced stiffening element. The intermediate cavity between the edge cavities is filled with a strip of ridged foam to add structural stability to the slat without greatly increasing its weight.
Extending from, and integral with the back portion of the slat is a heddle bar support portion which has extending from it near its bottom edge two horizontal ledges which define a heddle bar support channel. Each of the ledges has on their adjacent surfaces a longitudinally extending ridge for locking the support rib of a heddle bar in place with an interference fit. Each of the locking ridges taper inwardly of the channel towards the bottom thereof to permit easy entry of the supporting rib of the heddle bar while restricting its withdrawal therefrom without preventing its removal from the slat.
REFERENCES:
patent: 3754577 (1973-08-01), Heller
patent: 3901282 (1975-08-01), Kramer et al.
patent: 4355667 (1982-10-01), Shimizu
patent: 4790357 (1988-12-01), Kramer
Jaudon Henry S.
Steel Heddle Mfg. Co.
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