Yarn singeing burner construction

Abstract

A yarn singeing burner, comprises a housing which has a vertical yarn passage defined threthrough, and a front wall having an entrance opening to the yarn passage. An insert member is located within the passage, and has a wall portion spaced inwardly from the housing, so as to define a burner fuel and air chamber therebetween. The insert member is provided with a plurality of apertures for the passage of a singeing flame jet which is generated by the burning of fuel and air which is directed into the fuel and air chamber, defined between the insert and the housing. A yarn guiding channel extends through the yarn passage between the flame jets and the yarn, and it has an open side which is opened to the entrance for the passage of the yarn therethrough. The channel member may be of triangular configuration and may be provided with a plurality of apertures for the passing of the heating gases therethrough, or with unperforated walls which, for example, may be of a wave-shape configuration, or the channel may include a wall with spaced interruptions on each side thereof extending along its height for the purpose of exposing the yarn passing therethrough to alternate areas of flame and shielding.

Dependencies are inferred from the claim text.