EP 0028418 B1 19840307 - METHOD AND APPARATUS FOR SAWING STONES AND MARBLE
Title (en)
METHOD AND APPARATUS FOR SAWING STONES AND MARBLE
Publication
Application
Priority
FR 7927255 A 19791105
Abstract (en)
[origin: EP0028418A1] 1. A method for sawing stone or similar material using a chain saw comprising cutting inserts (5a-5f) of tungsten carbide each fixed by mechanical clamping (6a-6f, 7) in a housing or receptacle with a corresponding cross-section so enabling the insert to be rotated, after being unclamped, through a suitable angle for evening out the wear, characterized in that the chain comprises successive sequences of links each formed by a large number of links (1a, 2, 1b, 2 ... 1f, 2), with the geometrical axes (8a-8f) of these inserts, and therefore of their respective housing, being so positioned as to meet the axis of the chain (9) at a constant distance from the corresponding insert, with each of these axes being angularly offset with respect to the axis of the preceding link by a constant amount round the chain axis, the cutting face or the inserts being coated with synthetic diamond reconstituted in situ by a known method and the inserts being positioned to have a negative cutting angle of 3 to 6 degrees, these inserts having a cylindrical shape of revolution or a polygonal prismatic shape with multiple symmetry.
IPC 1-7
IPC 8 full level
CPC (source: EP)
B28D 1/125 (2013.01)
Designated contracting state (EPC)
AT BE CH DE GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0028418 A1 19810513; EP 0028418 B1 19840307; AT E6480 T1 19840315; DE 3066867 D1 19840412; ES 497023 A0 19811001; ES 8107083 A1 19811001; FR 2468452 A1 19810508; FR 2468452 B1 19821022; JP S57169310 A 19821019; PT 72023 A 19801201; PT 72023 B 19811217
DOCDB simple family (application)
EP 80106772 A 19801104; AT 80106772 T 19801104; DE 3066867 T 19801104; ES 497023 A 19801105; FR 7927255 A 19791105; JP 15575480 A 19801105; PT 7202380 A 19801105