Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
224 words
Table-mounted circular sawing apparatus comprising a work table structure including a table top, means defining a slot in said table top, mounting means below said table top for a circular saw, said mounting means including support means and a mounting frame pivotally connected to said support means about a pivotal axis, a circular saw blade carried by said mounting frame for rotation about a saw blade axis, said saw blade being aligned with said slot, drive means for rotating said saw blade about said saw blade axis, said mounting frame being pivotally movable about said pivotal axis between a first position in which said blade is beneath said table top and a second position in which an upper portion of said blade extends through said slot and projects above said table top, an operating bar connected with said mounting frame for moving said frame between said first and second positions, said operating bar being substantially coplanar with said saw blade and extending upwardly through said slot, an upper end of said operating bar projecting above said table top and being provided with handle means and linkage means connected between said operating bar and said support means for maintaining a fixed distance between said operating bar and said saw blade axis measured in the direction of the line of fall of the saw blade plane.
Claim 2
Dependent Claim
224 words
Table-mounted circular sawing apparatus comprising a work table structure including a table top, means defining a slot in said table top, mounting means below said table top for a circular saw, said mounting means including support means and a mounting frame pivotally connected to said support means about a pivotal axis, a circular saw blade carried by said mounting frame for rotation about a saw blade axis, said saw blade being aligned with said slot, drive means for rotating said saw blade about said saw blade axis, said mounting frame being pivotally movable about said pivotal axis between a first position in which said blade is beneath said table top and a second position in which an upper portion of said blade extends through said slot and projects above said table top, an operating bar connected with said mounting frame for moving said frame between said first and second positions, said operating bar being substantially coplanar with said saw blade and extending upwardly through said slot, an upper end of said operating bar projecting above said table top and being provided with handle means and linkage means connected between said operating bar and said support means for maintaining a fixed distance between said operating bar and said saw blade axis measured in the direction of the line of fall of the saw blade plane.
Claim 3
Dependent Claim
20 words
The apparatus of claim 1 wherein said table top comprises a circular support rotatably mounted in said work table structure.
Claim 4
Dependent Claim
29 words
The apparatus of claim 2 wherein said support means includes a cradle which can tilt relative to said circular support and said mounting frame is carried by said cradle.
Claim 5
Dependent Claim
14 words
The apparatus of claim 1 including a riving knife integral with said operating bar.
Claim 6
Dependent Claim
99 words
The apparatus of claim 1 wherein said operating bar includes a mounting arm pivoted about said saw blade axis and said linkage means comprises a first rod attached to said mounting arm and a second rod pivoted at one end to said first rod and pivoted at its other end to a member associated with said support means, the length of said second rod between its pivots being equal to the distance between said pivotal axis and said saw blade axis and said second rod being parallel to a plane containing said pivotal axis and said saw blade axis.
Claim 7
Dependent Claim
15 words
The apparatus of claim 1 including guide means below said slot for said operating bar.