Patent ID: 7028683

Claim:
A structural improvement in a portable stone cutter comprising: a box like rectangular base having an opened top, a closed bottom, four side walls, a partition in center thereof to define said base into a water sink, a motor compartment abutting a high plain surface which has a pair of indentations for respectively engaging a switch and a piece of electric wire, a motor disposed in said motor compartment and secured by screws and having an axis on front end inserted into said water sink via a through hole in said partition and perpendicularly connected with a saw blade with a seal ring and a swinging ring engaged therebetween, a concave in a sidewall for pivoting a handle therein, four foot pads secured respectively to four lower corners, a pair of U-shaped detents in a depression of said bottom opposite to said plain surface for engaging two ends of a flexible plate for fixing said electric wire when it is rolled up and a pair of elastic grip plates diagonally arranged on said bottom for pressedly engaging two ends of a leant upon ruler therein; a rectangular lid covering said opened top of said base and fixed by screws having a closed left side on top of said motor, a pair of stepped stopping surfaces spacedly formed on said closed left side and an opened right on top of said water sink and graduation being engraved on front and rear edges; a pair of grille working plates openably disposed on top of said lid each having a plurality of longitudinal slits spacedly formed, wherein one of the grille working plates pivoted to right edge of said lid and the other pivoted to middle of the front and rear edges of said lid and having a pair of supports pivoted to an underside and stopped against one of the steps of said stepped stopping surfaces, a support plate vertically secured to an inner side of the front edge of said lid and extended upward from a central gap between said pair of grille working plates having a top pivoted with one end of a blade guide which protects a protruding portion of said saw blade; a dividing device composed of a dividing plate having graduations on an arcuate side, a pair of vertical gripping flanges on an underside slidably engageable with said leant upon ruler and a pivot on a central top, and a V-shaped ruler having a downward flange on outer edge and a surrounded screw hole in a junction engaged with the pivot of said dividing plate secured by a bolt and a nut; whereby, said stone cutter may conduct a regular cutting, an inclined cutting and a stopped cutting of a working piece.