EP 0288264 A2 19881026 - Method of area-stretching of leather and apparatus for carrying out the method.
Title (en)
Method of area-stretching of leather and apparatus for carrying out the method.
Title (de)
Verfahren zum Strecken von Leder und Vorrichtung zur Durchführung des Verfahrens.
Title (fr)
Procédé d'étandage du cuir et appareil pour l'application du procédé.
Publication
Application
Priority
- CS 278387 A 19870421
- CS 759487 A 19871022
Abstract (en)
The invention solves an improvement of method and apparatus for area-stretching of leathers which re inserted between two resilient belts with which they are alternatively and cyclically either moved (fed between a set of deepenings and a set of pulling studs, wither stretched by causing of reversible shifting (pushing-in) of said pulling studs into said opposite depenings. The improvement is reached as follows: Before beginning of each stretching cycle both the resilient belts, commonly with treated leather, are mutually clamped, one opposite to the other, at peripheral places of the deepenings and before the resilient belts subsequently shift, their clamping is released. Between pulling studs (21) there are mounted resilient plates (22) and oppositely to them, on peripheries of the deepenings (30), there are provided contact planes (31r) which are parallel to the shifting plane (o) of the resilient belts (4, 5). Except these distinguishing signs of the present invention there exist also further possible variances. The present invention can be used for area-stretching of leathers.
IPC 1-7
IPC 8 full level
CPC (source: EP)
Designated contracting state (EPC)
DE ES FR GB IT NL
DOCDB simple family (publication)
EP 0288264 A2 19881026; EP 0288264 A3 19900704; BR 8801876 A 19881122; DE 288264 T1 19890420; ES 2004849 A4 19890216; FI 881741 A0 19880414; FI 881741 A 19881022
DOCDB simple family (application)
EP 88303553 A 19880420; BR 8801876 A 19880420; DE 88303553 T 19880420; ES 88303553 T 19880420; FI 881741 A 19880414