Abstract: A device for applying liquid adhesive, in particular hot-melt adhesive, comprises a reservoir for the adhesive, an application nozzle for the adhesive and a shutoff valve in the line from the reservoir to the nozzle which is constructed as slit nozzle whose slit emanates from a spreading chamber to which the adhesive is supplied through a passage which opens centrally into the chamber at an angle to the direction in which the slit adjoins the chamber; the chamber extends substantially on the one side of the slit and the passage projects from the other side of the slit into the chamber.

Abstract: An electrically heated hose for simultaneously heating and feeding melted adhesive and pressurized air to an adhesive spraying head includes a tubular central flexible plastic core for feeding the adhesive therethrough, a resistance heating type helically wrapped around the core with adjacent turns spaced from each other and an outer layer of thermal insulation surrounding the tape and core so that a helically-shaped air passage is formed between adjacent spaced helical turns of the heating tape, the inner wall of the outer layer and the outer wall of the core. A pressurized air admitting tube is connected to one end of the helical passage and a pressurized air discharge tube is provided at the opposite end thereof for supplying the pressurized air in a preheated condition to the spraying head for atomization of the melted adhesive.