EP 0393469 A1 19901024 - Manufacturing process of a nozzle for air looms.
Title (en)
Manufacturing process of a nozzle for air looms.
Title (de)
Verfahren zur Herstellung einer Düse für Luftwebmaschinen.
Title (fr)
Procédé de fabrication d'une tuyère pour métiers à air.
Publication
Application
Priority
IT 2023689 A 19890421
Abstract (en)
The invention concerns a manufacturing method of a secondary nozzle to produce secondary jets in air looms, of the type consisting of a tubular element open at one end and having a gauged hole in correspondence of the opposite end. According to the invention, said method comprises the following steps: - cutting to size a steel rod and finishing its outer surface with centesimal tolerance; - drilling said steel rod with an axial dead hole of gauged dimensions with centesimal tolerance; and - permanently deforming on a die said drilled steel rod, with flattening of at least one part thereof near its closed end and shaping of this end according to an inclined plane, and subsequently forming a gauged hole on said inclined end surface.
IPC 1-7
IPC 8 full level
D03D 47/30 (2006.01)
CPC (source: EP)
D03D 47/302 (2013.01)
Citation (search report)
- [A] DE 2740108 A1 19780309 - RUETI AG MASCHF
- [A] EP 0066012 A1 19821208 - PICANOL NV [BE]
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR LI LU NL
DOCDB simple family (publication)
EP 0393469 A1 19901024; EP 0393469 B1 19930922; AT E94921 T1 19931015; DE 69003431 D1 19931028; DE 69003431 T2 19940120; IT 1230003 B 19910920; IT 8920236 A0 19890421
DOCDB simple family (application)
EP 90106798 A 19900409; AT 90106798 T 19900409; DE 69003431 T 19900409; IT 2023689 A 19890421