Multi directional web cutter

Claim 2

A web cutting apparatus comprising means for holding the web on a support surface; a pair of spaced tracks mounted on said support surface; at least one other cross-track positioned across said pair of tracks and moveably mounted thereon to slide laterally along said pair of tracks to and fro; a knife carriage moveably mounted on said cross track; a rotatable blade assembly rotatably mounted on said carriage; (a blade mounted on said blade assembly and positioned to contact the web thereunder to cut the same;) means for rotating said blade assembly to cut said web in a plurality of directions; said blade assembly having resiliently mounted at the base thereof a blade guide means, said guide means terminating in a smooth surfaced foot for riding over the web, said guide means having a blade mounted thereon and penetrating beyond said foot and means for adjusting the depth of penetration of said blade beyond said foot; means for moving said knife carriage along said cross-track and means for moving said cross-track along said pair of tracks so as to move said blade a plurality of directions over said web to cut the same.

Claim 3

The web cutting apparatus of claim 1 wherein said cross-track is mounted at right angles with said pair of tracks.

Claim 4

The web cutting apparatus of claim 1 having two spaced cross-tracks mounted across said pair of tracks.

Claim 5

The web cutting apparatus of claim 1 wherein at least one marginal web clamp secures the web to said support.

Claim 6

The web cutting apparatus of claim 1 wherein said pair of tracks are mounted in spaced parallel relationship proximate opposed edges of said web.

Claim 7

The web cutting apparatus of claim 1 having a calibrated scale mounted along at least one of said tracks.

Claim 8

The web cutting apparatus of claim 1 having at least one stop means positioned on at least one of said tracks to stop said carriage after making a predetermined cut in said web.

Claim 9

The web cutting apparatus of claim 1 wherein said rotatable blade assembly has locking means to radially index said assembly and its blade in a plurality of positions.

Claim 10

The web cutting apparatus of claim 1 wherein said blade is mounted on said blade assembly at an angle with said web to cut said web in a bevel cut.

Claim 11

The web cutting apparatus of claim 1 wherein said knife carriage moves over said track on roller means.

Claim 12

The web cutting apparatus of claim 1 wherein said knife carriage has at least one handle for manual guidance of same.

Claim 13

The web cutting apparatus of claim 1 wherein said support surface is mounted vertically and carries said tracks and said cros-track thereon.

Claim 14

The web cutting apparatus of claim 1 wherein said web is selected from the group consisting of mat board, paper, glass and plastic.

Claim 15

The web cutting apparatus of claim 1 wherein said blade is mounted to a blade slide member to slide at an acute angle with the surface of said web, extension means for sliding said blade toward said web to penetrate beyond said foot for web cutting purposes and retracting means for sliding said blade away from said web to retract said blade.

Claim 16

The web cutting apparatus of claim 1 wherein locking means lock said blade in the penetrating position, and releasing means release said lock and permit said blade to retract, said retracting means being a spring.

Claim 17

The web cutting apparatus of claim 1 wherein said extension means is at least one push rod which moves back and forth in a path substantially normal to said web in engagement with said blade slide member, which moves back and forth at an acute angle with said path.

Claim 18

The web cutting apparatus of claim 1 having handle means for lifting said blade assembly, including said blade guide means off said web and relative to said knife carriage to permit free movement between said blade assembly and said web, including rotational indexing of said blade assembly.

Claim 19

The web cutting apparatus of claim 1 having means to index said blade assembly at four 90° intervals.

Claim 20

A web cutting apparatus comprising means for holding the web on a support surface; a pair of spaced tracks mounted on said support surface; at least one other cross-track positioned across said pair of tracks and moveably mounted thereon to slide laterally along said pair of tracks to and fro; a knife carriage moveably mounted on said cross-track; a rotatable blade assembly rotatably mounted on said carriage; a blade mounted on said blade assembly and positioned to contact the web thereunder to cut the same; means for rotating said blade assembly to cut said web in a plurality of directions; means for moving said knife carriage along said cross-track and means for moving said cross-track along said pair of tracks so as to move said blade a plurality of directions over said web to cut the same; carriage stops mounted on at least some of said tracks: each stop having a base plate; a spaced pair of projecting arms extending from said base plate; a compressible coil spring mounted on said base plate between said arms; a gripper plate mounted between said arms on said spring, a cam lever pivotably mounted between said arms against said gripper plate, said cam lever being thicker with respect to its pivot axis on at least one side than at the base thereof such that pivoting said lever to bring said side into contact with said gripper plate advances the latter toward said base plate to grip a track situated therebetween and pivoting said lever to bring its base into contact with said gripper plate permits said gripper plate to withdraw from said base plate under pressure of said spring, releasing said stop for repositioning same along said track.

Claim 21

A web cutting apparatus comprising means for holding the web on a support surface; a pair of spaced tracks mounted on said support surface; at least one other cross-track positioned across said pair of tracks and moveably mounted thereon to slide laterally along said pair of tracks to and fro; a knife carriage moveably mounted on said cross-track; a rotatable blade assembly rotatably mounted on said carriage; a blade mounted on said blade assembly and positioned to contact the web thereunder to cut the same; means for rotating said blade assembly to cut said web in a plurality of directions; means for moving said knife carriage along said cross-track and means for moving said cross-track along said pair of tracks so as to move said blade a plurality of directions over said web to cut the same; carriage stops mounted on at least some of said tracks: each stop having a base plate; a spaced pair of projecting arms extending from said base plate; a compressible coil spring mounted on said base plate between said arms; a gripper plate mounted between said arms on said spring, a cam lever pivotably mounted between said arms against said gripper plate, said cam lever being thicker with respect to its pivot axis on at least one side than at the base thereof such that pivoting said lever to bring said side into contact with said gripper plate advances the latter toward said base plate to grip a track situated therebetween and pivoting said lever to bring its base into contact with said gripper plate permits said gripper plate to withdraw from said base plate under pressure of said spring, releasing said stop for repositioning same along said track.