US3470772A

US3470772A - Round hooded chain saw sharpener

Info

Publication number: US3470772A
Application number: US767886*A
Authority: US
Inventors: Joseph P Faust Sr
Original assignee: FAUST JOSEPH P SEN
Current assignee: FAUST JOSEPH P SEN
Priority date: 1968-08-29
Filing date: 1968-08-29
Publication date: 1969-10-07
Anticipated expiration: 1986-10-07

Description

0% 1959' J- P. FAUST, SR

ammo aoonnn 01mm SAW smmsn Filed Aug. 29, 1968 J.P.FAUST, SR.

United States Patent 3,470,772 ROUND HOODED CHAIN SAW SHARPENER Joseph P. Faust, Sr., Woodville, Miss. 39669 Continuation-impart of application Ser. No. 547,070, Apr. 13, 1966. This application Aug. 29, 1968, Ser. No. 767,886

Int. Cl. B2311 63/12, 63/08, 63/00 US. C]. 76-37 6 Claims ABSTRACT OF THE DISCLOSURE This application is a continuation-in-part of application Ser. No. 547,070, filed Apr. 13, 1966, now Patent No. 3,426,625.

IDENTIFICATION OF REFERENCE NUMERALS Figure illustrations 1 through 4Composed of malleable or low carbon steel.

No. 5-Hollow bushing threaded outside %-11 x long I.S.D. milled fiat two sides one end to inch for wrench application.

No. 6-File and depth gauge channel rack with aligning slots.

No. 7The front jaw movable only as compressed or released.

No. 8Rear tool jaw and chamber assembly rigid.

No. 9-% x 20 threaded hole in carrier rack for maintaining same.

No. 10Left-hand cutter tooth.

-No. 11Right-hand cutter tooth.

No. 12- 75 hole in nose of rear tool jaw and chamber assembly.

No. 13Chuck type lo ck bushing for containing cutter tool.

No. 14Two nuts x 16 x /8 Hex. F. to F. one locks, the other jams.

No. 15%; x A: x /1-20 stripper bolt for supporting carrier rack No. 6.

No. 16Complete handle assembly.

No. 17Cutter tools, reamer, files, or diamond tool, to A inch dia.

No. Iii-Complete round hooded chain for chain saws.

No. 19--Right-hand lock slot in file and gauge rack.

No. 20Left-hand lock slot in file and gauge rack.

No. 212% x A chambers to carry No. 13 chuck type lock bushings part of No. 6.

No. 22-Chuck type tap wrench for rotating cutter.

-No. 23Cutter bar groove to guide No. 18 chain.

No. 24Depth gauge channel for left-hand cutter tooth.

No. 25-Depth gauge channel for right-hand cutter tooth.

No. 26Bolts to connect No. 7 and No. 8 units to handles.

No. 27--.072 slot cut in nose of No. 8 to carry floating washer for lock.

No. 28 /s x /2 dial pin to support No. 36, floating washer.

No. 29--Adjustment bolt to control opening of No. 7 movable jaw.

No. 30--C0mpression spring /2 x 1% x 080 gauge.

No. 31--% x 11 thread in rear of No.8 chamber assembly.

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No. 32- /2 inch slot cut 1% inches long to support compression spring and No. 7 jaw in chamber No. 8.

No. 33Depth gauge on all chain saw cutter teeth.

No. 34% inch slot cut in lower end No. 7 jaw to straddle chain No. 18.

No. 35Complete cutter bar as used on all chain saws.

No. 36 i x /8 washer inch hole for lock.

FIGURE 1: Being a perspective view of universal tool applied to chain in active position.

FIGURE 2: The tool is seen from bottom complete, with no chain or cutter bar, less chuck type wrench for rotating cutter tool of FIGURE 1.

FIGURE 3: The top view of file and depth gauge channel rack No. 6, showing slots as referred to in reference No. 19 and No. 20, being parallel with depth gauge channel on reverse side to accept floating washer to lock channel rack in perfect alignment with cutter teeth Nos. 10 and 11, while sharpening.

FIGURE 4: A cutout or cross section of bottom view of FIGURE 2, exposing sectional performance, less car- Eer or channel rack and cutter tool assembly of FIG- ABSTRACT AND DRAWING IN DETAIL No. 35 is a portion of chain saw referred to as cutter bar, containing a groove around rim No. 23 to support and maintain chain No. 18 and cutter teeth Nos. 10 and 11, encircling bar in an outward direction from unit.

Illustrated tool, as shown in FIGURE 1, is supported by a pair of parallel hand tool handles No. 16 by bolts No. 26 attached to short jaw and chamber N0. 8 and long jaw No. 7 in active position for sharpening cutter tooth No. 10; the tool handles No. 1-6, when compressed relieve pressure on No. 7 and cutter tool No. 17, thereby releasing right-hand cutter tooth No. 10, and the tool can then be removed and pivoted back to opposite angle, then applied to left-hand cutter tooth No. 11, then releasing handles enabling compression spring No. 30 to expand and force front jaw No. 7 and the cutter assembly back in position on to cutter tooth No. 11, thus rotating chuck type tap wrench No. 22 clockwise until adjustment bolt No. 29 jams head of chamber No. 32. This prohibits an excessive amount of steel from being cut from cutter tooth and sharpens tooth as desired. No. 17, the cutter tool, being a round high speed steel straight fluted reamer, carbon steel, or diamond plated file, 7 inch and inch in diameter as shown in FIGURES 1 and 2, supported by a brass chuck type threaded split bushing No. 13 and two nuts, No. 14, supported by chambers -No. 21, being a part of tool rack No. 6. Two nuts, No. 14, are screwed on to bushings No. 13 and jammed to one another to fasten reamer or files to develop a mating unit for sharpening cutter teeth. No. 33, the depth gauge, being a part of cutter tooth No. 10, and No. 11, to avoid excessive cut while in motion, inserts in channel No. 24, and No. 25, on tool rack as tool clamps cutter teeth for sharpening. The cutter tool assembly, composed of Nos. 17, 6, 13, 14 and 22, can be pivoted to approximately thirty-seven and one-half degrees, right or left. No. 36, a floating washer in No. 27 slot, supported by No. 28 dial pin, fits in lock slot Nos. 19 and 20, right or left, as a lock; to disengage, lift with pointer finger and pivot tool rack and cutter assembly to opposite parallel slot, thus release same to relock. Handles No. 16 are compressed to relax No. 29, to adjust No. 7, to proper size of tooth, and also permit sufficient forward motion of No. 7 to correctly sharpen tooth. The tool and depth gauge channel rack No. 6 is supported at point of No. 8, as shown in FIGURE 4, through No. 12 with stripper or shoulder bolt No. 15 and screwed into No. 9, being a part of No. 6, thus permitting cutter tool assembly to pivot from right to left 3 cutter teeth. No. 5, a threaded hollow bushing milled flat two sides at end for A inch wrench, for screwing into No. 8, at No. 31, chamber, and puts tension on compression spring No. 30 and thus jams No. 7 to the required tension for No. 17 cutter to perform properly as rotated in cutter teeth. Adjustment screw No. 29 is the means of adjusting space between No. 7 and No. 17 to acquire proper clearance for application. No. 29, adjustment screw, goes completely through Nos. 5, 7 and 30 and jams front of No. 8, chamber, and when turning clockwise opens space between N0. 7 and No. 17, as shown in FIG- URE 4, until suflicient to clamp on cutter teeth and permit cutter assembly to bear on same; as teeth wear or are reduced by sharpening, adjustment bolt No. 29 is turned counterclockwise to allow contact on cutter teeth, as illustrated. No. 34, is a quarter inch slot cut in the tip or lower part of jaw No. 7 to drop below chain link level at rear of cutter teeth to assist in maintaining tooth alignment with depth gauge channel No. 24 and No. 25.

I claim:

1. A chain saw sharpener comprising a pair of plierstype handles pivoted intermediate their ends; first jaw means pivotally mounted on one of said handles; second jaw means, having a portion adapted to engage a back portion of a cutter tooth of said chain saw, pivotally mounted on the other of said handles; a chamber assembly attached to said first jaw means; and a file and depth gauge channel rack pivotally mounted on said chamber assembly and adapted to receive a cutter tool; said chamber assembly including a bore through which said second jaw means extends, resilient means positioned in said bore and bearing against said second jaw means to bias said jaws apart and to bias said file and depth gauge channel rack toward said second jaw means whereby said cutter tooth is resiliently clamped between said second jaw means and said cutter tool, and an adjustment means associated with said chamber assembly for regulating the amount of material removed from said cutter tooth by said cutter tool.

2. A chain saw sharpener as defined in claim 1 wherein said file and depth gauge channel rack has a plurality of lock slots therein and said chamber assembly has mounted thereon a fioating washer locking device for engaging said locking slots to position said file and depth gauge channel rack.

3. A chain saw sharpener as defined in claim 1 wherein said file and depth gauge channel rack has a plurality of depth gauge channels therein for engaging a depth gauge on said chain saw for positioning said cutter tool at a proper angle with respect to said cutter tooth.

4. A chain saw sharpener as defined in claim 1 in which said adjustment means extends through said bore of said chamber assembly, and threadingly engages a portion of said second jaw means and abuts a portion of said chamber assembly, whereby the distance between said second jaw means and said cutter tool can be regulated.

5. A chain saw sharpener as defined in claim 1 wherein said resilient means comprises a compression spring and means to vary the force applied by said spring.

6. A chain saw sharpener as defined in claim 1 wherein said file and depth gauge channel rack includes a pair of chuck bushings for retaining said cutter tool in said file and depth gauge channel rack during the cutting operation.

References Cited UNITED STATES PATENTS 2,770,985 11/1956 Pearce 7637 3,005,363 10/1961 Newman 7636 TRAVIS S. MACGHEE, Primary Examiner US. Cl. X.R.