US3750503A — Method and means of gang saw lubrication and cool…

Claim 1

Independent Claim 259 words

In an edger having; an arbor having a bore and being adapted to carry a collar; the collar having an axial width and opposed jaws adapted to engage blade surfaces of a saw for securing the saw to the collar; the arbor, collar, and saw being adapted for mutual rotation; blade guiding means straddling the saw; and means to feed lumber through the saw; means to lubricate and cool the collar and saw including: a. supply means to feed liquid under pressure to the bore of the arbor, b. transfer means to conduct liquid from the bore to the collar, the transfer means including; i. a valve adjacent the arbor, the valve being normally closed when clear of the collar, and opened when in register with the collar, so as to pass liquid to the collar, ii. the arbor having a passage leading from the bore of the arbor to the valve to conduct liquid from the bore to the valve, c. distribution means in the collar communicating with the valve so that when the valve is opened by the collar, liquid in the passage passes the valve into the distribution means, constructed and arranged so that when the arbor rotates the saw to cut lumber, liquid is fed in to the bore and passes outwards to the valve in register with and opened by the collar, the liquid passing the valve and flowing to the blade surfaces of the saw across which the liquid is centrifuged, the liquid providing coolant and lubricant for the collar and the saw.

Claim 2

Dependent Claim 259 words

In an edger having; an arbor having a bore and being adapted to carry a collar; the collar having an axial width and opposed jaws adapted to engage blade surfaces of a saw for securing the saw to the collar; the arbor, collar, and saw being adapted for mutual rotation; blade guiding means straddling the saw; and means to feed lumber through the saw; means to lubricate and cool the collar and saw including: a. supply means to feed liquid under pressure to the bore of the arbor, b. transfer means to conduct liquid from the bore to the collar, the transfer means including; i. a valve adjacent the arbor, the valve being normally closed when clear of the collar, and opened when in register with the collar, so as to pass liquid to the collar, ii. the arbor having a passage leading from the bore of the arbor to the valve to conduct liquid from the bore to the valve, c. distribution means in the collar communicating with the valve so that when the valve is opened by the collar, liquid in the passage passes the valve into the distribution means, constructed and arranged so that when the arbor rotates the saw to cut lumber, liquid is fed in to the bore and passes outwards to the valve in register with and opened by the collar, the liquid passing the valve and flowing to the blade surfaces of the saw across which the liquid is centrifuged, the liquid providing coolant and lubricant for the collar and the saw.

Claim 3

Dependent Claim 23 words

An edger as defined in claim 1 in which the supply means is a rotary seal assembly adjacent an end of the arbor.

Claim 4

Dependent Claim 119 words

An edger as defined in claim 1 in which: f. the valve is adjacent an outer surface of the arbor, the valve being a two-position valve and having a raised closed position when the valve is clear of the arbor, and a lowered open position when the valve is in register with the arbor, g. axial spacing between adjacent valves along the surface of the collar being greater than one-half of the axial width of the collar so as to prevent interference between the collar and adjacent valves, adapted so that when the collar is in register with a corresponding valve the corresponding valve is opened and liquid flows from the bore into the collar, remaining valves being closed.

Claim 5

Dependent Claim 133 words

An edger as defined in claim 1 in which: h. a key having a surface extends axially along the arbor and is in sliding engagement with a keyway in the collar so as to transmit power to the collar, i. the valve is a three-position valve and is adjacent the surface of a key, the valve having a raised closed position when the valve is clear of the collar, a middle open position when the collar is in register with the valve, and a closed lowered position when the collar is in register with an adjacent valve, so that, when the collar is in register with a corresponding valve, the corresponding valve is opened and liquid flows from the bore into the collar, remaining valves and valves adjacent to the collar being closed.

Claim 6

Dependent Claim 26 words

An edger as defined in claim 4, including: j. an axial manifold extending along the key to distribute liquid axially to valves spaced along the key.

Claim 7

Dependent Claim 95 words

An edger as defined in claim 1 in which the distribution means in the collar includes: k. the collar cooperating with the arbor to form an annular manifold to distribute liquid circumferentially about the collar, the annular manifold communicating with the transfer means, l. clearance between the jaws of the collar and the saw, the clearance communicating with the annular manifold, adapted so that liquid from the bore of the arbor fed to transfer means is distributed circumferentially around the collar and is centrifuged outwards across surfaces of the saw, providing lubricant for the saw.

Claim 8

Dependent Claim 39 words

An edger as defined in claim 1 in which m. the collar is slidable axially of the arbor so as to change position of the saw relative to the arbor, the saws being moved by the blade guiding means.

Claim 9

Dependent Claim 69 words

An edger as claimed in claim 6 in which n. the annular manifold extends circumferentially around a bore in a side wall of the collar adjacent the arbor, the manifold communicating with opened valves, o. the collar has passages extending from the annular manifold to the clearance between the jaws of the collar and the saw to conduct liquid from the annular manifold to the surfaces of the saw.

Claim 10

Dependent Claim 216 words

An edger as claimed in claim 4 in which the three-position valve is adapted selectively to open and close a passage in the key, and the valve includes: p. a ball being moveable axially of the passage, a spring urging the ball outwards of the passage, q. an outer valve seat at an outer end of the passage, the seat permitting the ball to stand proud of the surface of the key in the raised closed position, when the collar is clear of the valve, the ball being urged against the seat to close the valve, r. an inner valve seat, spacing between the valve seats permitting limited movement of the ball, the inner valve seat being resilient and positioned so that when the collar is in register with an adjacent valve the ball is forced against the inner valve seat by the collar to the lowered closed position to close the valve, the ball being essentially flush with the outer surface of the key, the passage of the valve having a size such that, when the collar is in register with the valve, the ball is depressed by the wall of the collar to the middle open position which provides clearance for liquid to flow around the ball into the distribution means of the collar.

Claim 11

Dependent Claim 236 words

An edger as claimed in claim 4 in which the three-posItion valve is adapted selectively to open and close a bore in the key, the valve including: s. a ball being moveable axially of the bore, t. an outer valve seat face at an outer end of the bore which permits the ball to stand proud of the surface of the key in the raised closed position when the collar is clear of the valve, u. an inner valve element having an inner valve seat, spacing between the valve seats limiting movement of the ball, the inner valve element being spring urged outwards to bear against a stop so that when the ball is in the lowered closed position the ball is urged against the inner valve seat to close the valve, the seat element being resiliently mounted to accommodate variation in clearance between bore of the collar and the key, v. a valve plunger having an outer face to engage the ball, the plunger being spring urged outwards to force the ball against the outer valve seat face to close the valve in the raised closed position, the plunger having clearance for flow of liquid past the plunger, the bore of the valve being a size such that when the collar is in register with the valve, the ball is depressed by the collar to the middle open position which provides clearance around the ball,

Claim 12

Dependent Claim 28 words

An edger as defined in claim 4 in which: w. the collar has a keyway having a hard anvil adapted to contact the ball of the ball valve.

Claim 13

Dependent Claim 99 words

An edger as defined in claim 11 in which: x. the anvil has outer working surfaces straddling an inner working surface, the inner surface being radially spaced from the arbor to depress the ball to the middle open position when the collar is in register with the valve, the outer working surfaces being spaced from the arbor to depress the ball to the lowered closed position when the collar is in register with an adjacent valve, y. the collar having a passage adjacent the anvil and communicating with the keyway to transmit liquid from the keyway to the saw.

Claim 14

Independent Claim 103 words

A method of cooling and lubricating a collar and saw of an edger, the collar being mounted on an arbor for rotation, the saw being secured to the collar, the method including steps of: a. supplying liquid under pressure to the arbor, discharge of liquid from the arbor being substantially prevented by closed valves, b. positioning the collar on the arbor so as to open at least one valve permitting transfer of liquid from the arbor to the collar, c. distributing liquid from the collar to surfaces of the blade, so as to cool and lubricate the collar and surfaces of the saw.

Claim 15

Independent Claim 103 words

A method of cooling and lubricating a collar and saw of an edger, the collar being mounted on an arbor for rotation, the saw being secured to the collar, the method including steps of: a. supplying liquid under pressure to the arbor, discharge of liquid from the arbor being substantially prevented by closed valves, b. positioning the collar on the arbor so as to open at least one valve permitting transfer of liquid from the arbor to the collar, c. distributing liquid from the collar to surfaces of the blade, so as to cool and lubricate the collar and surfaces of the saw.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1976-08-06	1977-02-05	1977-08-07	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1980-08-06	1981-02-05	1981-08-07	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1984-08-06	1985-02-05	1985-08-07	$7700.00	Window Closed / Lapsed

Method and means of gang saw lubrication and cooling

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