US4170911A — Log cutting apparatus

Claim 1

Independent Claim 184 words

Improved log cutting apparatus comprising: (a) first conveyor means for transporting logs to be cut; (b) log clamp means located adjacent an end of said first conveyor means, said clamp means comprising a first bifurcated member located below a log to be cut and a second befurcated member located above a log to be cut, said first and second bifurcated members being moveable to clamp a portion of a log therebetween; (c) power cutting means located adjacent said clamp means, said cutting means being moveable across said log to sever same; (d) pivotal waste removal means located adjacent said power cutting means; said waste removal means lying beneath a log path of travel and being pivotal upwardly to remove cut log waste from the apparatus; (e) second conveyor means located on an opposite side of said power cutting means to said first conveyor means; and (f) a plurality of individual log stop means located along said second conveyor means and being individually actuatable to stop a log moving along said second conveyor means at a predetermined location to cut a predetermined length of log.

Claim 2

Dependent Claim 184 words

Improved log cutting apparatus comprising: (a) first conveyor means for transporting logs to be cut; (b) log clamp means located adjacent an end of said first conveyor means, said clamp means comprising a first bifurcated member located below a log to be cut and a second befurcated member located above a log to be cut, said first and second bifurcated members being moveable to clamp a portion of a log therebetween; (c) power cutting means located adjacent said clamp means, said cutting means being moveable across said log to sever same; (d) pivotal waste removal means located adjacent said power cutting means; said waste removal means lying beneath a log path of travel and being pivotal upwardly to remove cut log waste from the apparatus; (e) second conveyor means located on an opposite side of said power cutting means to said first conveyor means; and (f) a plurality of individual log stop means located along said second conveyor means and being individually actuatable to stop a log moving along said second conveyor means at a predetermined location to cut a predetermined length of log.

Claim 3

Dependent Claim 45 words

Log cutting apparatus as defined in claim 1 wherein said pivotal waste removal means comprise a pivotal member located on each side of said power cutting means, said waste removal means being individually actuatable to remove waste from either side of said power cutting means.

Claim 4

Dependent Claim 33 words

Log cutting apparatus as defined in claim 1 wherein said log clamps are shaped to partially conform to the contour of logs of different diameters, said clamps being vertically offset from each other.

Claim 5

Dependent Claim 32 words

Log cutting apparatus as defined in claim 1 wherein further said log clamp means has a graduated scale in conjunction therewith, said scale indicating the diameter of a log being held therein.

Claim 6

Dependent Claim 35 words

Log cutting apparatus as defined in claim 1 wherein said power cutting means are mounted adjacent said clamp means, said cutting means being operable to pass across said conveyor means and sever said log thereat.

Claim 7

Dependent Claim 16 words

Log cutting apparatus as defined in claim 1 wherein said stops are operated by air cylinders.

Claim 8

Dependent Claim 33 words

Log cutting apparatus as defined in claim 1 wherein said waste removal means includes a waste removal means located upstream and downstream of said power cutting means along said log path of travel.

Claim 9

Dependent Claim 38 words

Log cutting apparatus as defined in claim 1 comprising further cut block removal means located downstream of said stop means, said cut block removal means being operable to move across said log path and remove cut blocks therefrom.

Claim 10

Dependent Claim 31 words

Log cutting apparatus as defined in claim 8 wherein said cut block removal means is operated by an air cylinder and is actuated by switch means engaged by said cut block.

Claim 11

Dependent Claim 205 words

Improved log cutting apparatus comprising: (a) first log conveyor means for transporting logs to be cut; (b) log clamp means located adjacent an end of said first conveyor means, said clamp means comprising a pair of clamp members, a first of said members being moveable into and out of engagement with an underside of a log and a second of said members being vertically offset from said first and being moveable into and out of engagement with an opposite side of said log; (c) power cutting means located adjacent an end of said first conveyor, said cutting means being moveable across a log path along said conveyor to sever said log thereat; (d) kick means adjacent said power cutting means to remove log waste remaining thereat; (e) a second log conveyor located adjacent said cutting means on a downstream side and extending away from same to deliver blocks cut from said log; and (f) a plurality of raiseable log stop means located within said second conveyor at a predetermined distance from said cutting means, said stop means being individually raised to stop log movement along said conveyor for cutting and then lowered to permit the cut block to be conveyed away from said cutting means.

Claim 12

Dependent Claim 205 words

Improved log cutting apparatus comprising: (a) first log conveyor means for transporting logs to be cut; (b) log clamp means located adjacent an end of said first conveyor means, said clamp means comprising a pair of clamp members, a first of said members being moveable into and out of engagement with an underside of a log and a second of said members being vertically offset from said first and being moveable into and out of engagement with an opposite side of said log; (c) power cutting means located adjacent an end of said first conveyor, said cutting means being moveable across a log path along said conveyor to sever said log thereat; (d) kick means adjacent said power cutting means to remove log waste remaining thereat; (e) a second log conveyor located adjacent said cutting means on a downstream side and extending away from same to deliver blocks cut from said log; and (f) a plurality of raiseable log stop means located within said second conveyor at a predetermined distance from said cutting means, said stop means being individually raised to stop log movement along said conveyor for cutting and then lowered to permit the cut block to be conveyed away from said cutting means.

Claim 13

Dependent Claim 19 words

Log cutting apparatus as defined in claim 10 wherein said power cutting means is of a bucking saw type.

Claim 14

Dependent Claim 46 words

Log cutting apparatus as defined in claim 10 wherein said log waste kick means comprises a pivotal member located on at least one side of said cutting means, said member being operable to be pivoted into contact with log waste to force same from said conveyor.

Claim 15

Dependent Claim 57 words

Log cutting apparatus as defined in claim 10 comprising further: (g) a cut block stop means located adjacent an end of said second conveyor; and (h) cut block kick means located adjacent said cut block stop means, said cut block stop means being operable to remove cut blocks from in front of said cut block stop means.

Claim 16

Dependent Claim 42 words

Log cutting apparatus as defined in claim 13 wherein said cut block stop means has an impact switch means associated therewith, said switch means being operably associated with said cut block kick means to actuate same for removal of said cut blocks.

Claim 17

Dependent Claim 40 words

Log cutting apparatus as defined in claim 10 wherein said top clamp member comprises a plate having a pair of diverging legs, and said bottom clamp member comprises a pair of plates, each having diverging legs on opposite sides thereof.

Claim 18

Dependent Claim 36 words

Log cutting apparatus as defined in claim 15 wherein a vertically oriented graduated scale is provided adjacent said clamp means, the position of said clamp means indicating a diameter measurement of a log being held therein.

Claim 19

Dependent Claim 134 words

A log cutting clamp comprising: (a) a framework; (b) a first clamp member mounted on said framework for movement into and out of engagement with logs fed thereto, said clamp member having bifurcated legs for receivably engaging an under-surface of logs of different diameter; (c) a second clamp member mounted on said frame on a side thereof opposite from said first clamp member, said second clamp member having bifurcated legs for engaging an upper surface of logs of different diameter; (d) at least one graduated scale located adjacent said clamp members, a portion of one of said clamp members residing adjacent said graduated scale whereby log diameters are indicated at least in part thereon; and (e) means for moving said clamp members into and out of engagement with logs of different diameter fed therebetween.

Claim 20

Dependent Claim 134 words

A log cutting clamp comprising: (a) a framework; (b) a first clamp member mounted on said framework for movement into and out of engagement with logs fed thereto, said clamp member having bifurcated legs for receivably engaging an under-surface of logs of different diameter; (c) a second clamp member mounted on said frame on a side thereof opposite from said first clamp member, said second clamp member having bifurcated legs for engaging an upper surface of logs of different diameter; (d) at least one graduated scale located adjacent said clamp members, a portion of one of said clamp members residing adjacent said graduated scale whereby log diameters are indicated at least in part thereon; and (e) means for moving said clamp members into and out of engagement with logs of different diameter fed therebetween.

Claim 21

Dependent Claim 18 words

A log cutting clamp as defined in claim 17 wherein said clamp members are operated by air cylinders.

Claim 22

Dependent Claim 39 words

A log cutting clamp as defined in claim 17 wherein a further graduated scale is provided on said first clamp member to permit log diameter determination when said first clamp member is moved upwardly more than a predetermined amount.

Claim 23

Dependent Claim 25 words

A log cutting clamp as defined in claim 17 wherein one of said clamp members is vertically offset from said other of said clamp members.

Claim 24

Dependent Claim 67 words

A log cutting clamp as defined in claim 17 wherein said first clamp member is a bottom log support and comprises a pair of spaced apart plates, each plate having a V shaped upper end for receiving logs of different diameters therein, and wherein each of said plates is located on an opposite side of a line along which a power cutting means will sever said log.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1982-10-15	1983-04-16	1983-10-16	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1986-10-15	1987-04-16	1987-10-16	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1990-10-15	1991-04-16	1991-10-16	$7700.00	Window Closed / Lapsed

Log cutting apparatus

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