Loom with means for introducing the filling threads by means of a fluid

Claim 2

Loom having a means for inserting filling threads into a shed of warp threads by means of a gaseous fluid and having a reed for beating up the inserted filling threads, a supporting and drive mechanism for the reed, and temples for spreading the cloth in the width-way direction, the means for inserting the filling threads comprising a comb of parallel channel forming blades adapted to move with the reed and form a guide channel for the insertion of the filling threads by said gaseous fluid, the comb of channel forming blades being arranged on the side of the reed facing the fell of the cloth, and being carried by a slat of the reed which is remote from the supporting and drive mechanism for the reed and above the warp threads, said blades extending from the slat downwardly towards the warp threads, said supporting and drive mechanism including a shaft mounting the reed, said shaft having an axis of rotation positioned below the warp threads and forwardly of the fell so that said reed is moved through an arc which positions the channel forming blades within the warp shed during insertion of the weft and above the temples and the plane of the warp during beat-up of the weft.

Claim 3

Loom having a means for inserting filling threads into a shed of warp threads by means of a gaseous fluid and having a reed for beating up the inserted filling threads, a supporting and drive mechanism for the reed, and temples for spreading the cloth in the width-way direction, the means for inserting the filling threads comprising a comb of parallel channel forming blades adapted to move with the reed and form a guide channel for the insertion of the filling threads by said gaseous fluid, the comb of channel forming blades being arranged on the side of the reed facing the fell of the cloth, and being carried by a slat of the reed which is remote from the supporting and drive mechanism for the reed and above the warp threads, said blades extending from the slat downwardly towards the warp threads, each of said channel forming blades has the shape of a finger which, from its fastened point at one end portion, extends substantially parallel to reed teeth and then at its other end portion extends towards the reed to form the guide channel for the fluid between the blade comb and the reed, and an outlet opening for the filling thread introduced between the free end of each channel forming blade and the reed, the beating up movement of the reed providing a swinging motion rotating around a center of rotation that is positioned on the loom at least as much forwardly as is said fell, so that in the filling thread beating up position the channel forming blades are positioned above the temples and withdrawn from the shed.

Claim 4

Loom having a means for inserting filling threads into a shed of warp threads by means of a gaseous fluid and having a reed for beating up the inserted filling threads, a supporting and drive mechanism for the reed, and temples for spreading the cloth in the width-way direction, the means for inserting the filling threads comprising a comb of parallel channel forming blades adapted to move with the reed and form a guide channel for the insertion of the filling threads by said gaseous fluid, the comb of channel forming blades being arranged on the side of the reed facing the fell of the cloth, and being carried by a slat of the reed which is remote from the supporting and drive mechanism for the reed and above the warp threads, said blades extending from the slat downwardly towards the warp threads, each of said channel forming blades has the shape of a finger which, from its fastened point at one end portion, extends substantially parallel to reed teeth and then at its other end portion extends towards the reed to form the guide channel for the fluid between the blade comb and the reed, and an outlet opening for the filling thread introduced between the free end of each channel forming blade and the reed, the beating up movement of the reed providing a swinging motion rotating around a center of rotation that is positioned on the loom at least as much forwardly as is said fell, so that in the filling thread beating up position the channel forming blades are positioned above the temples and withdrawn from the shed.

Claim 5

The loom according to claim 2 in which a first warp-thread rest rail is arranged along the comb having the channel forming blades, said rail contacting and aligning the group of warp threads facing away from the supporting and drive mechanism of the reed when the shafts are in the open-shed position and when the reed has moved away from the fell of the cloth.

Claim 6

The loom according to claim 3 in which said first warp thread rest rail has at least one hollow space therein for feeding fluid to a plurality of nozzles which discharge into the guide channel the fluid for the introduction of the filling thread, said hollow fingers provided with the nozzle openings arranged between groups of channel forming blades and each hollow finger connected with the hollow space of the warp thread rest rail for passage of the fluid therethrough.

Claim 7

The loom according to claim 3 in which a second warp thread rest rail is arranged in fixed position between the reed and shafts for changing the shed, said rail contacting and aligning into the same position the group of warp threads facing the supporting and drive mechanism of the reed when the shafts are in the open-shed position.