Back to results
US 4,964,442 AGranted
Reserve weft thread supply mechanism with device for changing thread type
AssigneePicanol N.V.
InventorsJo Tacq, Roger Ligneel, Henry Shaw
Life of this patent
Estimating the term…
Abstract
A mechanism for supplying weft thread to the shed of a weaving machine includes at least three different weft supply mechanisms, at least one of which is arranged to operate with at least two different weft thread sources for the purpose of acting as a reserve thread supply for either of the first two weft thread supply mechanisms.
Claims15
A mechanism for supplying a weft thread to the shed of a weaving machine, comprising:
- first weft thread supply means for supplying a first type of weft thread from a first weft thread source to the shed;
- second weft thread supply means for supplying a second type of weft thread from a second weft thread source to the shed;
- third weft thread supply means for supplying one of a plurality of different types of weft threads from one of a plurality of third weft thread sources to the shed;
- and
- weft thread selection means for selecting the type of weft thread to be supplied by said third weft thread supply means, said weft thread selection means including means for selecting one of the plurality of third weft thread sources and providing said third weft thread supply means with thread from the selected third weft thread source.
2 more elements
A method for supplying weft threads to the shed of a weaving machine, comprises the steps of:
- normally supplying a first type of weft thread from a first thread supply mechanism to the shed;
- normally supplying a second type of weft thread from a second weft supply mechanism to the shed;
- holding on standby a third weft supply mechanism which supplies one of a plurality of different types of weft threads, at least two of said different types of weft threads being of the same type as said first and second types of weft threads;
- selecting one of said different types of weft threads and providing said third weft thread supply mechanism with said selected type of weft thread;
- and switching over to the third weft supply mechanism upon supply of a control signal.
2 more elements
Dependencies are inferred from the claim text.