Stone and concrete cutting machine

A stone and concrete cutting machine, comprising:

• an elongated base comprised of at least one tube of triangular cross section;
• bracket means for releasably mounting the base in a stationary relationship to a surface to be cut with one side of the triangular tube substantially parallel to the surface to be cut;
• truck means mounted to the base for longitudinal movement along the base length with rollers thereon for engaging all three sides of the triangular tube;
• biasing means for urging the roller engaging the parallel side of the triangular tubular base firmly against the parallel side to maintain the truck in self-alignment with the base;
• an elongated standard protruding from the truck means in lateral relation to the base length;
• a cutting head receiving carriage mounted to the standard for movement along the standard length;
• and
• a cutting head on the receiving carriage;
• carriage drive means interconnecting the standard and carriage for moving the carriage along the standard length;
• and
• truck drive means interconnecting the truck means and base moving the truck along the length of the base.

A stone and concrete cutting machine, comprising:

• an elongated base comprised of at least one tube of triangular cross section;
• bracket means for releasably mounting the base in a stationary relationship to a surface to be cut with one side of the triangular tube substantially parallel to the surface to be cut;
• truck means mounted to the base for longitudinal movement along the base with rollers thereon for engaging the triangular tube;
• a standard protruding from the truck means in lateral relation to the base length;
• a cutting head;
• a cutting head receiving carriage mounted to the standard for movement along the standard length;
• adapter means having coupling elements on the cutting head and receiving carriage for releasably mounting the cutting head to the receiving carriage on either of oppositely facing sides of the standard;
• wherein the standard is hollow along its length;
• a carriage drive means that operatively connects the standard and carriage from within the hollow standard for moving the carriage along the standard length;
• and
• a truck drive means that operatively connects the truck means and base from within the hollow standard for moving the truck means along the base length.