Abstract: This machine for sawing commercial products consisting of accurately sized plates of metal, wood, chipboard or other similar materials comprises a turn-table mounted on a feed table adapted to be set in various positions along a path disposed at right angles to the sawing line, and responsive to means for driving the feed table forwards and backwards, the backward movement of the feed table being attended automatically by a 90-degree rotation of the turn-table. The invention is applicable more particularly to the trimming and finishing of the contours of multilayer printed circuits subsequent to the strata-forming operation.

Abstract: This system for guiding the carriage of a circular sawing machine adapted to saw relatively long plates or boards from beneath and provided with a chassis incorporating spaced parallel supporting beams forming a sawing channel between them comprises two guide rails having their longitudinal axes disposed in the same vertical plane as the center of gravity of each supporting beam in order to prevent the ingress of shavings, chips and dust into the carriage rolling means while facilitating the access thereto.

Abstract: The invention relates to a device for closing up the grooves in the tops of the front and rear tables of a machine for sawing materials in sheets, these grooves being perpendicular to the sawing-line. This closing device is characterized by the fact that it comprises, for each groove (9), an obturator (13) activated by means of propulsion (20, 21, 34) and subjected to a vertical course to fit into the groove (9) of the table (5, 6).