Tiltable edger saw mechanism

Claim 2

In a saw mill including means for moving a log along a first line past a series of saws for cutting said log into boards; an edger saw mechanism comprising: a shaft; an edger saw mounted on said shaft for rotation about an axis; means for mounting said edger saw for tiltable and rotational movement; means supporting said mounting means for axial movement while sawing; and means for tilting said mounting means in a plane substantially parallel to said first line between a first position in which said edger saw is positioned to saw a board along one line, and a second position in which said edger saw is positioned to saw a board along a different line at an angle to said first line whereby the board area obtained from the log is increased.

Claim 3

An edger saw according to claim 1 comprising a tiltable post, edger saw mounting means through which said post extends, and a counterweight connected to said edger saw mounting means.

Claim 4

An edger saw according to claim 2, further comprising a guide frame mounted on said post, and a projection on said mounting means slidably extending into a channel on said guide frame.

Claim 5

An edger saw according to claim 3 wherein said projection comprises a roller.

Claim 6

An edger saw according to claim 2 wherein said edger saw mechanism comprises a guide member, and said post has one end slidably mounted in said guide member, said edger saw mechanism further has pivot means for said post intermediate its ends, and said tilting means comprises a fluid cylinder connected to the opposite end of said post.

Claim 7

An edger saw according to claim 3, further comprising means for pivoting said guide frame and said post for retracting said edger saw from the path of a log.

Claim 8

An edger saw according to claim 6 wherein said pivoting means comprises an arm having one end secured to said post, and a fluid cylinder connected to the opposite end of said arm.

Claim 9

An edger saw according to claims 1 or 2, further comprising a protective shield on said edger saw and a laser unit on said shield for directing a light dot or line on the log indicating the path the edger saw will follow.

Claim 10

In a saw mill including means for moving a log along a first line past a series of saws for cutting said log into boards; an edger saw mechanism for edge cutting a board as it is sawed from said log by a head saw comprising: at least one edger saw; mounting means for tiltably and rotatably supporting said edger saw on an axis with said edger saw normally lying in a first horizontal plane for edge cutting a board on a first horizontal line as the board is transported past said edger saw in a second plane at right angles to said first plane; means for supporting said mounting means for axial movement while sawing; and means for tilting the axis of said edger saw in a third plane substantially parallel to said second plane at an angle to said first plane so that said edger saw edge cuts a board on a second line at an angle to said first line whereby the board area obtained is increased.

Claim 11

In a saw mill including means for moving a log along a first line past a series of saws for cutting said log into boards; an edger saw mechanism for edge cutting a board as it is sawed from said log by a head saw comprising: at least one edger saw; mounting means for tiltably and rotatably supporting said edger saw on an axis with said edger saw normally lying in a first horizontal plane for edge cutting a board on a first horizontal line as the board is transported past said edger saw in a second plane at right angles to said first plane; means for supporting said mounting means for axial movement while sawing; and means for tilting the axis of said edger saw in a third plane substantially parallel to said second plane at an angle to said first plane so that said edger saw edge cuts a board on a second line at an angle to said first line whereby the board area obtained is increased.

Claim 12

An edger saw mechanism according to claim 9 wherein said means for slidably supporting said mounting means comprises a tiltable post, an opening in said edger saw mounting means through which said post extends, and a counterweight connected to said edger saw mounting means.

Claim 13

An edger saw mechanism according to claim 10, further comprising a guide frame mounted on said post, and a projection on said mounting means slidably extending into a channel on said guide frame.

Claim 14

An edger saw mechanism according to claim 10 wherein said edger saw mechanism comprises a guide member, and said post has one end slidably mounted in said guide member, said edger saw mechanism further has pivot means for said post intermediate its ends, and said tilting means comprises a fluid cylinder connected to the opposite end of said post.

Claim 15

An edger saw mechanism according to claim 11, further comprising means for pivoting said guide frame and said post for retracting said edger saw from the path of said log.

Claim 16

An edger saw mechanism according to claim 13 wherein said pivoting means comprises an arm having one end secured to said post, and a fluid cylinder connected to the opposite end of said arm.

Claim 17

An edger saw mechanism according to claims 1 or 2 comprising at least two edger saws mounted at a preselected spacing for making parallel cuts at a preselected angle through said log.

Claim 18

An edger saw rotatable about an axis operative to saw along a line and mounted for movement parallel to the axis of rotation of said saw; and means for tilting said axis in a plane substantially parallel to the line of sawing.

Claim 19

An edger saw rotatable about an axis operative to saw along a line and mounted for movement parallel to the axis of rotation of said saw; and means for tilting said axis in a plane substantially parallel to the line of sawing.

Claim 20

The edger saw of claim 16 further comprising means for balancing the weight of said saw.

Claim 21

The edger saw of claim 17 wherein said balancing means comprises a counterweight.

Claim 22

The edger saw of claim 17 wherein said balancing means comprises a spring.