Sawing apparatus

Claim 2

Saw apparatus comprising: a table having a work supporting surface, a frame, guide means connected with said table for displacing said frame longitudinally along said table, a carriage, guide means connected with said frame for displacing said carriage transversely of said table, saw support means on said carriage, said support means including a spindle and a saw blade mounted for rotation on said spindle and motor means for driving spindle, means for rotating said support means relative to said carriage about an axis perpendicular to said table surface, means for temporarily locking said support means at predetermined rotational positions relative to said carriage, cylindrical sleeve on said support means, bearing means supporting said sleeve on said carriage for axial movement, a collar on said sleeve, said collar having a circumferential groove therein, lever means mounted on said carriage adjacent said collar, said lever means including a lever engaging said collar and including means for selectively swinging said lever to displace said sleeve axially relative to said carriage, whereby said saw blade is raised and lowered relative to said table surface.

Claim 3

The saw apparatus according to claim 1 wherein said swinging means includes a bracket on said carriage and an adjUsting screw threadedly engaging said bracket, bearing means connecting one end of said lever with said screw, the opposite end of said lever engaging said collar, fulcrum means on said carriage supporting said lever for swinging movement, and means for turning said screw.

Claim 4

The saw apparatus according to claim 1 wherein said locking means includes a locating pin on said sleeve and said carriage has a plurality of sockets therein to receive said locating pin at predetermined rotational positions of said sleeve relative to said carriage.

Claim 5

Saw apparatus comprising: a table having a work supporting surface, a frame, guide means connected with said table for displacing said frame longitudinally along said table, a carriage, guide means connected with said frame for displacing said carriage transversely of said table, saw support means on said carriage, said support means including a spindle and a saw blade mounted for rotation on said spindle and motor means for driving said spindle, means for displacing said support means longitudinally of said axis, a cylindrical sleeve on said support means, a locating pin on said sleeve and said carriage has a plurality of sockets therein to receive said locating pin at predetermined rotational positions of said sleeve relative to said carriage, means mounting said locating pin for longitudinal movement relative to said sleeve, and means for selectively latching said pin at predetermined longitudinal positions relative to said sleeve, said latching means including a plunger on said sleeve and a transverse bore in said pin and means for aligning said pin and said bore.

Claim 6

Saw apparatus comprising: a table having a work supporting surface, a frame, guide means connected with said table for displacing said frame longitudinally along said table, a carriage, guide means connected with said frame for displacing said carriage transversely of said table, saw support means on said carriage, said support means including a spindle and a saw blade mounted for rotation on said spindle and motor means for driving said spindle, means for displacing said support means longitudinally of said axis, a cylindrical sleeve on said support means, a locating pin on said sleeve and said carriage has a plurality of sockets therein to receive said locating pin at predetermined rotational positions of said sleeve relative to said carriage, means mounting said locating pin for longitudinal movement relative to said sleeve, and means for selectively latching said pin at predetermined longitudinal positions relative to said sleeve, said latching means including a plunger on said sleeve and a transverse bore in said pin and means for aligning said pin and said bore.

Claim 7

The saw apparatus according to claim 4 including means for temporarily preventing longitudinal displacement of said frame relative to said table, and means for temporarily preventing relative movement between said carriage and said frame.

Claim 8

Saw apparatus comprising: a table having a work supporting surface, a frame, guide means connected with said table for displacing said frame longitudinally along said table, a carriage, guide means connected with said frame for displacing said carriage transversely of said table, saw support means on said carriage, said support means including a spindle and a saw blade mounted for rotation on said spindle and motor means for driving said spindle, means for rotating said support means relative to said carriage about an axis perpendicular to said table surface, means for displacing said support means longitudinally of said axis and means for temporarily locking said support means at predetermined rotational positions relative to said carriage, gauge means on said carriage for indicating the effective cutting cord length of said saw blade, gauge means on said frame for indicating the effective cutting cord length of said saw blade, and stop means for limiting radial movement of the saw blade relative to the workpiece, whereby the location of the ends of the kerfs produced by the blade is accurately controlled.

Claim 9

Saw apparatus comprising: a table having a work supporting surface, a frame, guide means connected with said table for displacing said frame longitudinally along said table, a carriage, guide means connected with said frame for displacing said carriage transversely of said table, saw support means on said carriage, said support means including a spindle and a saw blade mounted for rotation on said spindle and motor means for driving said spindle, means for rotating said support means relative to said carriage about an axis perpendicular to said table surface, means for displacing said support means longitudinally of said axis and means for temporarily locking said support means at predetermined rotational positions relative to said carriage, gauge means on said carriage for indicating the effective cutting cord length of said saw blade, gauge means on said frame for indicating the effective cutting cord length of said saw blade, and stop means for limiting radial movement of the saw blade relative to the workpiece, whereby the location of the ends of the kerfs produced by the blade is accurately controlled.

Claim 10

Saw apparatus comprising: a table having a work supporting surface, a frame, guide means connected with said table for displacing said frame longitudinally along said table, a carriage, guide means connected with said frame for displacing said carriage transversely of said table, said carriage having a cylindrical support member mounted thereon for axial and rotational movement relative to said carriage, a spindle housing secured on said support member between said carriage and said table surface, a spindle journaled for rotation in said housing, a saw blade mounted on said spindle for rotation about an axis parallel to said table surface, motor means mounted on said support member, means forming a driving connection between said motor means and said spindle, a collar secured on said support member, thrust bearing means on said carriage in position to engage and support said collar, said carriage being between said collar and said spindle housing, said collar having a circumferential groove therein, A lever engaging in said groove, said lever being mounted on said carriage for displacing said support member axially upon swinging movement of said lever, means for controlling the movement of said lever and thereby controlling the elevation of the saw blade relative to the table surface, an arm projecting outwardly from said support member adjacent said collar, said arm being movable with said collar toward and away from said carriage, a locating pin on said arm and extending substantially parallel to said support member, said carriage having a plurality of sockets therein adjacent said support member and in position to receive said locating pin upon rotation of said arm into alignment with one of said sockets whereby said pin temporarily locks said saw blade at a predetermined angular position relative to the table surface.

Claim 11

Saw apparatus comprising: a table having a work supporting surface, a frame, guide means connected with said table for displacing said frame longitudinally along said table, a carriage, guide means connected with said frame for displacing said carriage transversely of said table, said carriage having a cylindrical support member mounted thereon for axial and rotational movement relative to said carriage, a spindle housing secured on said support member between said carriage and said table surface, a spindle journaled for rotation in said housing, a saw blade mounted on said spindle for rotation about an axis parallel to said table surface, motor means mounted on said support member, means forming a driving connection between said motor means and said spindle, a collar secured on said support member, thrust bearing means on said carriage in position to engage and support said collar, said carriage being between said collar and said spindle housing, said collar having a circumferential groove therein, A lever engaging in said groove, said lever being mounted on said carriage for displacing said support member axially upon swinging movement of said lever, means for controlling the movement of said lever and thereby controlling the elevation of the saw blade relative to the table surface, an arm projecting outwardly from said support member adjacent said collar, said arm being movable with said collar toward and away from said carriage, a locating pin on said arm and extending substantially parallel to said support member, said carriage having a plurality of sockets therein adjacent said support member and in position to receive said locating pin upon rotation of said arm into alignment with one of said sockets whereby said pin temporarily locks said saw blade at a predetermined angular position relative to the table surface.

Claim 12

The saw apparatus according to claim 7 wherein said locating pin is movable longitudinally relative to the arm, a plunger mounted on said arm, shoulder means on said pin, said plunger and shoulder means cooperating to lock said pin in extended longitudinal position whereby said locating pin may be released by operating said plunger to lift said pin from said socket without requiring the support member to be fully elevated by said lever.

Claim 13

The saw apparatus according to claim 6 wherein said gauge means includes a pair of spaced pointers, said pointers being spaced a distance equal to the length of cut produced by the blade at the maximum depth of penetration into the workpiece.