EP 0467074 A3 19920729 - APPARATUS AND PROCESS FOR MAKING BRICKS
Title (en)
APPARATUS AND PROCESS FOR MAKING BRICKS
Publication
Application
Priority
DE 4023007 A 19900719
Abstract (en)
[origin: EP0467074A2] In a process for making a brick which has a holding aid in the form of a recess on at least one side, raw material is extruded in an extrusion operation through an opening of a die and is formed into a continuous body. The recess, serving as a holding aid, in the continuous body is formed by the continuous body being extruded with an intermittently varied contour. A corresponding apparatus has a die with an opening through which raw material can be extruded and formed into a continuous body. An apparatus for forming the recess comprises a device for changing the cross-section of the opening of the die, in which arrangement at least one blade-like diaphragm can be moved for changing the cross-section through which the continuous body is extruded and can be made to overlap the latter. With the apparatus, instead of producing a holding aid, the motion of the continuous column can also be regulated so as to be of limited duration. <IMAGE>
IPC 1-7
IPC 8 full level
B28B 3/26 (2006.01)
CPC (source: EP)
B28B 3/26 (2013.01); B28B 3/2681 (2013.01)
Citation (search report)
- [Y] FR 681749 A 19300519
- [YD] DE 8700438 U1 19870619
- [A] AU 474878 B2 19750515
- [A] FR 2255792 A5 19750718 - PINTAT ARMAND [FR]
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0467074 A2 19920122; EP 0467074 A3 19920729; DE 4023007 A1 19920123
DOCDB simple family (application)
EP 91109802 A 19910614; DE 4023007 A 19900719