US1392261A - Saw-fitting tool - Google Patents

Description

G. ANDERSON.

SAW FITTING TOOL- APPLICATION FILED APR. 20, 1920.

G- ANDERSON.

SAW FITTING TOOL. I

APPLICATION FILED APR. 20, 1920.

PatentedSept. 27, 1921'.

2 SHEETS-SHEET Z.

N\ W Y ll-S QV\ Arron/v: Ys.

UNITEDFSTATES' PATENT OFFICE.

SAW-FITTING TOOL.

Specification of Letters Patent. Pate t d S t 2 7 1,921.

' Application filed April 20, 1920.. Serial No. 375,234.

To all whomit may concern: 7

Be it known that I, GUs'rAF ANDERSON, a citizen of the United States, and a resident of Atlin, in the Province of British Columbia and the Dominion of Canada, have made certain new and useful Improvements in SawFitting Tools, of which the following is a specification.

My present invention relates particularly to saw fitting tools of that character described and claimed in my Patents No.

1,990,038 and No. 1,314,729 and granted respectively January 7, 1919, and September 2, 1919.

ing a vertically adjustable swage gage member provided with a plurality of laterally projecting gage points, so'located that when gaging the lengthof a raker tooth of a saw, they will be out of registry withv the two points of they raker tooth, whereby the unused gage point will not interfere in the 0peration, by coming in contact with the opposite tooth point. I also aim to provide adjustingmeans to vary the vertical adjust- =ment of the gage points with respect to each other, and. to produce inclination to the gaging surfaces of the gage points, so that they may be operable either in a horizontal position, or slightly inclined longitudinally of the device. The same adjusting means also to serve as means for to prevent lateral 1 shifting of the gaging member.

A further object is to providemeans acting directly against'the file, whereby the file may be adjusted to a desired position for side dressing saws, without having to remove the file from'the tool when adjusting the same.

A still further object is to provide a saw ointer support that is more efficient, con

venient and inexpensive than tools of this lcharacter that have preceded it, particularly with respect to adjustingmeans, and clamping means and arrangement of parts, whereby the elevation of the file may be varied at will, either up or down, with respect to its contactwith the saw teeth, whether it be for jointing their length with respect to uni formity of curvature of the saw, or for side dressing the sameto even up their set, or for reducing the set when required.

This and other objects will be described in the following specification in which ref;

My objects are to provide a device includ-;

erence is had to the drawin s formin r art of this specification, g p

In the accompanying drawings Figures 1 and 2 are a side elevation of the improved device, looking at the file holding side thereof, the whole file being shown respectively in edgewise and flatwise position and a portion of a saw in dotted lines, the

inner halfof. runner plates being fully shown, and the outer halves partially broken. off to permit the more closely grouped parts being shown on a larger scale.

Fig. 3 ma top plan view of the device removed from. the saw. v Fig, 4 is a side elevation looking atthe opposite side of thedevice with the j ointer support. detached- Fig. 5 is a vertical transverse section taken on the line- 5-.5 of Fig. 1.

Fig.6 is a similar view taken on the line 6-6 of Fig. 2.

Figs. 7 and 8 are'vertical transverse sections taken respectively on lines 7-7 and 8-8 of Fig. 1.

Fig. 9 is a horizontal section taken on the line 9-9 of Fig. 1. 1

Fig. 10 is a perspective view of the swage gage member showing one form of adjusting meansfor flexing the member. I r 7 Fig. 11 is an additional top plan view of the device as shown in Fig. 1." r

Several parts of the'present fitting device closely resembles those of my patent's above referred to, particularly the latter. The web or frame plate 10 is provided with lower and upper flanges 11 and 12 on its opposite sides, to. form parallel saw engaging side planes for guiding the tool along the side of a saw.

The jointing plane formed by flanges 11 and 1 2 is extended upwardly by an additional upper flange 13, for the operation of swage gages asshown in dotted lines of a portion ofa raker tooth above the dotted outlines of a saw in Fig. 2. From theflan ge 13, lugs 14 and 14 inspaced relation adjacent the opposite ends of the device extend upwardly and cooperate with other spaced lugs 15 in forming elevated supports. for cap plates 16 and 16, which are secured to the lugs by screws 17 entering through slots in the cap plates into threaded engagement withlugs 1 1 and 15, as best shown in Figs. 4 and 11, and by a further inspection of these figures it will be. seen that in the space'bet'ween the two inner lugs 15 is located a raker teeth tooth stop 19 of an inclined filing surface 20, preferably integral with the frame, and a laterally projecting rib 21, to which tooth stop plates 22 are secured by a screw 23 inserted through a slot in the plates into a threaded opening in the rib, all as'in my patents above referred to.

Between the filing surface 20 and the adj acent cap plate 16 extends upwardly from the flange 13 another lug 2% which in the present instance is machined horizontally, and on a plane of approximately 00.2 or 00.3 of an inchbelow the plane of the top surfaces of the lugs 1e, 14: and 15 to form a horizontal swage gage support provided with a vertical threaded opening therein.

The resilient swage gage member 25 seen in Figs. 3, 4, l0 and 11 consists of a small flat plate as'shown. The front of the member has a smooth'and hardened file guiding edge 25 facing the filing surface, and has laterally projecting gage points 26, 27 and 27, the two latter points overhang the saw jointing plane of the frame, and are close together, so that atno timewill they both come in contact with the two points of a raker tooth of a saw at the same time, which would interfere with the gaging operation. The back end of the member adjacent to the cap plate has a slot 28 in its body, and a screw 29 is inserted through the slot, and through washers or shims, into the threaded opening in the lug 24, for adjustably clamping the member to the gage support, as seen in Figs. 4 and 11. The

front end, adjacent to the filing surface,

has a threaded openingin which an adjusting screw 30 engages the opening and abuts against the lower portion of the filing surface, or otherwise suitably formedrecess in the frame. A' look nut 30 is also provided for holding the screw in place, Figs. 10 and 11. e 1

By referring now to the file clamping means of the device for jointing the length of the cutting teeth of a saw with respect to uniformity and curvature, and for side dressing the same to even up their set as shown in Figs. 1 and 2 respectively, it will be seen that the under surface of the flange 13 is provided with slightly downwardly depending file engaging bearing points 32 and 32 against which the file A may be clamped either in edgewise or flatwise position. These bearings are machined at a perfect right angle with themachine finished saw bearing plane formed by the flanges below and above the file engaging bearings.

The web 10, usually referred to as the frame, and of which the greater portion has been cut away for the purpose of lightness, is arranged to lie in different planes and of which a top portion and a centrally best seen in Figs. 6 and 9. The end portions have other offsets to form laterally elevated file rests 33 and 33 extending up wardly from the bearing flange 12 in a slightly inwardly inclined position and on which the flat side of-the file A may rest when of normal thickness. These file rest portions have transverse threaded openings near their extreme top ends through which screws 34 and 34 are inserted from the opposite side of the tool to bear against the file A, for purposes of adjustment with respect to thickness and inclination of the file, flush with the saw bearing plane of the adjacent flange 12, and at an angle to correspond with the set in the saw teeth. Lock nuts 35 and 35 are provided to prevent the screws from working out and becoming lost, Figs. 4 and 6.

The flanges 11 and 12, areas usual cut away centrally and by reason of the offsets in the web 10 a transverse vertical slide way is formed in which; lies a longitudinally grooved slide 36, having a file engaging top bearing-37, which is machined at right angle with the saw bearing plane, and lower file engaging shoulders 38; A lug 39 projects laterally from the web in the slide way through an opening in the slide. The web is recessed or cut away above and below the lug 39 to receive rearward enlargements of the slide opposite its groove. An adjusting and clamping screw 40 having threaded engagement with the lug, lies in the groove of theslideand overlapping the same above and below the lug, its head engaging'the lower end of the slide, for clamping the file either edgewise or flatwise against the file engaging bearings 32 and 32 Figsel and 2. r

It is to be noted that by reason of the file adjusting screws 34: and3 l being operative from the opposite side of the tool from that which holds the file in its fiatwise position shown particularly in Figs. 4 and 6 and are adapted to bear directly against the file, the adjustment can be accurately and speedily performed, without the necessity of removing the file from the tool.

By reference to the file supporting means by which the file is adjustably carried with respect to elevation'in its contact with the teeth of a saw, it will be seen by the inspection of Figs. 1, 2 and 3 that its consists ofa detachable bar 50 carried by the cap plates 16 and 16 and having bosses 51 provided at each end with vertically disposed transverse openings, a bolt 52 being inserted upwardly in each boss opening frombeneath the bar. Thumb nuts 53 and 53 above and below the bar serve to secure each boltadjustably in place and a transverse opening in thelower head 54 of each bolt serves to receive the These runner plates'55 are provided with,

smooth under surfaces and have transverse perforations in flanges 56 and 56 midway of the plates, a rivetor bolt being inserted through the flanges 56 and 56 and the bolt head 54 to form the pivot 55 as shown particularly in F ig.- 7.

It is to be noted that thumb screws 51 are also provided which pass through a horizontal threaded opening in the side of each of the bosses 51 and engage one side of the bolts 52, for firmly clamping thesaid bolts against the opposite side of the vertical Opening in eachof thebosses.

Near the inner endof each of the runner plates 55, I provide the bar with means for preventing horizontal rotation of the runner plates consisting as shown in Figs. 1, 3 and 8, of spaced depending legs 59 straddling the inner portions of the runner plate to form a bracket, and having on at least one of the legs of each bracket a lower inward pointing toe. 60 to keep the inner end of each runner plate within the bracket.

The brackets may preferably be integral with the bar, or they may be of a bolt construction and secured to the bar. 50 in the same manner as the outer bolts 52, as will be readily understood.

Intermediate its ends and opposite the cap plates 16 and 16", the bar 50 is provided with integrally formed foot pieces 62 having flat under surfaces to: rest on the cap plates and these foot pieces project rear-- ward and laterally from the bar and have grooved or recessedtop bearing surfaces 63, and transverse slots or bifurcations 64, extending inward at a fixed limit to form stops for holding the bar in longitudinal alinement with the main frame, for the sidewise reception of the thumb screws 65, and by which the jointer supporting bar may be unvaryinglyclamped tothe main tool, between the shouldersofthe screws 65 and the capplates 16 and 16 through which the screws pass into threaded openings in the lugs 14*. e

It will be understood that both the upward and the downward adjustment of the runner plates is controlled by the adjusting thumb nuts 53 and 53 above and below the bar 50, which in turn control the elevation of the file as held. in the main tool.

This is most advantageous, particularly when the file is being used in a fiatwise position against the side of the saw teeth. Fur-' thermore, the manner in which the jointer supporting bar is being attached to the main tool makes it as rigid as if it formed an integral part of the body of the main tool.

To operate the tool for jointing the length of the saw teeth points to even up the curvature of the saw, the file A is placed edgewise in the toolbetween the file engaging bearings 32, 32 and the top 37 of the slide 36 as seen in Fig. 1, and sprung to produce a slight curve in the file by operating the clampingscrew40 in the usual manner, and by loosening the thumb screws 65, located intermediately of each cap plate, the supporting bar foot piece projections are inserted beneath the shoulders of these screws the full limit of the slots 64: and firmly clamped in position as shown in Fig. 3 and then placed on the saw teeth. If the file does not touch the point of the saw teeth then the runner plates should be adjusted until it does and then drawn lengthwise the saw. If it-be seen-that the file takes too much hold or does not take enough holdon the saw teethpoints, then the runner plates may again be more accurately l e-adjusted by operatingthe thumb nuts 53 and 53 and a slight turno-f the thumb screws 51 will rigidly hold the adjustment.

To even upthe set in the saw teeth, the file is placed flatwise in the tool with the lower edge even with the plane for the saw, or the outside edge of flange 12, as shown in Figs. 2 and 6, andfby placing the tool and file between the thumb and other fingers of one hand, the file adjusting screws 34, '3 P and the clampingscrew 40 can be operated with the other hand, so that by these means the file can be adjustably securedbetween the lower file engaging shoulders 38 of the slide 36 and the file bearing points 32 and 32 at a desired angle flush with the saw bearing plane without removing the file from the tool. The j'ointer support is then attached as before, and the runner plates adjusted to position as shown in Fig. 2 leaving only the set portion of the tooth points exposed to the file and then the tool may be drawn along the side of the saw in the usual manner.

For reducing the set in'the saw teeth it will be understood, that-by reason of the upward and'inward tilt of the file, it is only necessary to bring the file to a higher elevation by rei-adjusting the runner plates as described. j

When it is desirable to operate the swage gaging surfaces of the member 25 in horizontal position for determining the length of the raker teeth in the usual manner, as by rocking the tool on teeth points that are too long, and by viewing the space between the gaging surface and those teeth points which may be too short to reach thegaging surface of the gage member, thin washers or shims may be inserted between the body of the member 25 and the supporting lug 24; to bring its gaging surfaces to a desired eleva tion, and an additional shim, the thickness of a sheet or two of paper, inserted between its extreme back end and the lug, adjacent to the cap plate, so as to leave its front end which faces the filing surface or opposite cap plate a little the lowest, that beingthe portion from which the gage points laterally project, and after first clamping the member firmly to the lug 24 by the screw 29, may then be brought back to; horizontal position by virtue of the adjusting screw 30 which, as hereinbefore stated, has threaded engagement with the member and bears against the frame. The resilient short body of the member 25 being thus clamped to the supporting frame lug, prevents lateral shifting of the front end of the member.

By first removing some of thewashers or shims from beneath the gage member 25 the laterally projecting gaging portions of the member may be vertically adjusted and inclined longitudinally of the device,by means of the adjusting screw 30 as before.

This latter method of adjustment is preferable, for the reason that when the cap plates 16 and 16 and the gaging surface of the member 25 rests evenly on the cutting teeth and the point of a raker tooth respectively, the exact length of the latter, with respect to the curved line of the toothed edge of the saw, can be determined by the longitudinal position of its contact with the gaging surface, so as to enable the user to know whether to strike the tooth point a light or hard tap with a hammer, after the tool having first been removed from the saw.

I claim 1. In a saw jointer andgage, a framehaving parallel saw engaging side planes and longitudinally spaced apart top surfaces at right angles to the side planes, cap plates in spaced relation carried thereby, a horizontal swage gage support, integral with the frame, in the space between the cap plates and beneath the plane thereof, and a resilient swage gage member adjustablyclamped to said support, and provided with laterally projecting gagingportions within close proximity of each other and out of registry with the two points of a raker tooth ofa saw, to prevent their simultaneous contact therewith, and means for shifting said gage member from a horizontal position to a longitudinally inclined position of the gage member, for the purpose described.

2. In a saw jointer and gage, a frame having saw engaging side planes and longitudinally spaced apart top surfaces at right an gles to the side planes, cap plates in spaced relation carried thereby, a horizontal swage gage support in the" space between two cap plates and beneath the plane thereof, and a resilient swage gage member adjustably clamped to said support, having laterally projecting gaging portions within close proximity of each other, and adjusting means at opposite ends of its body to vary the vertical adjustment of. the gaging portions 'withrespect to one another, and to provide inclination to the gaging portions, and rigidity to the gage member as described.

- 3. In a sawjointerand gage a frame having saw engaging sidevplanes, cap plates thereon, an upwardly extending horizontal swage gage support between said cap plates and beneath the plane thereof, aresilient swage gage member having laterally proj ecting gaging portions, adjusting means beneath one end of said member and a clampingiscrewjinsertedthrough an opening in said member, and through, andalong the adjusting means into threaded engagement bear against a suitably formed recess in the frame, for flexing the inner end of said member back to a horizontal position, to produce rigidity and to prevent lateral shifting of the gaging portion of the memher, as described. Y 1

4. A saw jointer, comprising a frame having lower saw bearing flanges, an upperfile engagingfiange, a vertically adjustable file engaging slide and laterally movable file adj usting' members, as described.

5. A saw ointer,comprising a frame,hav ing lower saw bearing flanges and an upper file engagingfiange, a vertically'adjustable file engaging slide and file adjusting screws threaded horizontally'through portions of the frame upon opposite sides of the said slide. q

6. A saw joint-er, comprisinga frame, having lower flanges at one side for engagement with a saw and provided with an upper file engaging flange, a slide adjustable Vertically at the same side of the frame to engage and clamp the fileagains't the last mentioned flange, said frame having threaded horizontal bearing portions below its last mentioned flange and upon relatively opposite sides of the said slide, and file adjusting screws working through the said bearings from the relatively opposite side of'the frame, as and for the purposedescribed. r l

7. A saw jointer, comprising a frame,

' having file clamping means, {a jointer support detachably mounted thereon, including a longitudinal bar, runner plates in the form of channel members opening upwardly be low theopposite ends of the said bar and disposed beyond the opposite ends of the frame, said"runner platesbeing vertically adjustable and longitudinally tiltable, and means carried by the said bar and depending therefrom into the channels of the runner plates to prevent lateral shifting movement and horizontal rotation thereof.

8. A saw jointer, comprising a frame, having file clamping means, vertically disposed thumb screws threaded into the upper portions thereof at spaced points, a longitudinal bar having laterally projecting foot pieces intermediate the ends thereof and slotted to receive the said thumb screws, bearings at the outer ends of :saidlbar, vertically disposed and threaded bolts adjustable in said bearings, adjusting nuts engaging the latter bolts above and below the bearings, and longitudinally extending runner plates pivotally connected intermediate their ends to the lower portions of the said bolts, as described.

9. A saw jointer, comprising a frame, having file clamping means, vertically disposed thumb screws threaded into the upper portions thereof at spaced points, a longitudinal bar having laterally projecting foot pieces intermediate the ends thereof and slotted to receive the said thumb screws, bearings at the outer ends of said bar, vertically disposed and threaded bolts adjustable in said bearings, adjusting nuts engaging the latter bolts above and below the bearings, longitudinally extending runner plates pivotally connected intermediate their ends to the lower portions of the said bolts, and bracket members depending from the bar adjacent to its outer ends and engaging the runner plates inwardly beyond their pivots to prevent lateral shifting movement thereof.

10. A saw jointer, comprising a frame, having file clamping means, vertically dis posed thumb screws threaded into the upper portions thereof at spaced points, a longitudinal bar having laterally projecting foot pieces intermediate the ends thereof and slotted to receive the said thumb screws, bearings at the outer ends of said bar, vertically disposed and threaded bolts adjustable in said bearings, adjusting nuts engaging the latter bolts above and below the bearings, clamping screws threaded through the bearings at right angles to and engaging the said bolts, longitudinally extending runner plates pivotally connected intermediate their ends to the lower portions of the said bolts, and bracket members depending from the bar adjacent to its outer ends and engaging the runner plates inwardly beyond their pivots to prevent lateral shifting movement thereof.

GUSTAF ANDERSON. Witnesses E. F. GREENE, LoIs B. GREENE.

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