US1447039A - Woodworking tool - Google Patents

Description

B. W. RHODES.

WOODWORKING TOOL- FILED JUNE 28. 1.922.

Feb. 27, 1923.

INVENTOR '45, broader claims;

Patented Feb. 27, 1923.

- won!recess-r 131E5 nonnrt'r wenrr'onns," or cesnnnsnune; PENNSYLVANIA.

Y To all who'm'z't mag/concern Be it: known th at I, Ronnnr big-RHODES; a-citizen of the:United-Staten-nestling at V Greensburg, in the county of Westmorelani.

-State of Pennsylvania, have invented a new and usefullmprovement in Noodworking 4 Tools, of which thefollowing is a full, clear,

a and exact description. y

The present invention-relates broadly to wood-Working tools and more-particularly to tools of the-type ordinarilyreferred to as scrapers" and adapted for use in finishing d-isadvantages, in JFthat each adjustment,

L changes the relativepositions of the -.operating. parts- By the presentinvention :this

' difiiculty'is entirely obviated'by-the provi; 'sion of means for adjusting-theposition of' the blade independently oftheclamping and supporting members. 1 3 @F'The present,invention-retains all of the thejuse ofa scrapingrblacle of-iinexpensive construction which can be easily resha-rpened and-Which presents an efiective cuttingedge at: alltimes. i

In the accompanying drawings there isi-- .shown-for purposes of illustration-only oneem bfodiment of the (present invention, it be;

-' define. the limits of any invention and- -that changesimay be madelIlJ-the' construction and operation Without departingi from the spirit ofmthezinvention or-- scope of my,

.-.,In--the drawings, a

Figurel is aside: elevation,-partly in secs-i n, tiong 'illu strating one embodiment; o f the present invention; p 3 g Figure .2 .is' artop plan--vievv of the end portion ofthe scraper-illustratedimEigure. 1,- one 0tthe2operating-handles being re a-moved :thereirom $erial- No.=

members and to beadjusted by' relative advantages oi-then construction disclosed in 1 my coepend ngappllcation in that it enables:

gingsunderstood-that the drawingswdo not 1922: sena1 ire-571,500.,

shovvnin position andcertain o'f'the'sparts bemgilh istrated in elevation; I

. l igure l 1s a detailsectional view. on an nre 2,.and

front'elevation of. the scrap- Figure 5vis 'a zing blade.

enlarged scale on the line" Ill- IV. offlFig- In the illustrated embodiment or. the invention' there is provided clamping means a for the scraping s blade 2 comprising "a supporting member 3 and-a backing member 4. Both the supporting member and theflbackzing member have t-heir cooperating. faces curved, one to present a concave surfacevand the other aconvex surface, Wherebyi-the clamping operation Will be reflective for curvingsthe scraping. blade.

;The supporting member 3 may be carried by arms5 projecting downwardly from enlargedbearing portions 6 having openings formed therein to receive a transversely 6X,

the bearing portions 6 are .arms Slying in parallel spaced relation, as clearly'shovvn in Fiqure 2 and provided :Wlilll enlarged bearing; portions 9- at their outer ends.

1 The. backing. member 1 may be formed to comprise spaced .para'llelly extending side members 10 adapted to embrace therarms 8, the backing member itself extending transversely I with respect to .the jsidevinembers FrbGI-S at their forward portions are provided withabearing openings adapted to extfend in axial alignment" with the openingsfformed in the bearing-portions 6 and receive the ends of the pin 7. The side Walls attheir rear portions-preferably have solid portions adapted to; embrace the bearing portions 9 formed on-the ,arms 8. Byoreasonvof this construction the side membersyare effective fore-maintaining in operative position-a pin 11- extending through the: bearing-portions 1 in-the iarmsi8-and'ha'ving its ends abutting h againstrthe inner surfaces o f-the walls 10,.

For maintaining the clampingmembers in 2 they desired position and permitt1ng-- opera tionthereofithere may berp-rovided avhandle 12. a' l hisehandle is: preferably keyed to a handlegbar- 13Which:extendsglongitudinally 1 through a; spacing sleeve 1&7. and engages a1 transversely extending ethreadedopenmg 1n 1 thepin 7.- The end of the -sleeve ,14.adjacent 1;. Figure-8 is-sa detail;sectionalevievvs on theline III-JILotEi-gure 2r h&.-h&ndle;;.being the clamping membersmay be proyided-with raecurved @c'lamping fac'e 41- 5, adapted to entending pin 7 Extending rearwardly. from as will be clearly apparent, The sideamem- 2 i ,aavgoee gage the front bearing portions formed on the supporting and backing members. By reason of this construction, it will be apparent that upon rotation or" the handle 12 in one direction the sleeve ll will be moved to release the clamping members and permit angular adjustment thereof relatively to the handle bar, while movement of the handle in the opposite direction will be eiiecti as for clamping the parts in their adjusted position.

For moving the supporting member 3 relatively to the backing member 1 to clamp the blade in position, there is provided a second handle 16 operatively secured in any desired manner to the tem 1'? which is provided with a threaded lower portion 18 adapted to engage an interiorly threaded transversely extending opening formed in the pin 11.

Loosely surrounding the stem 17 is a clamping plate 19 formed with a flat upper surface adapted to permit rotational engagement with the handle 16 and with a curved lower surface adapted to engage the side walls 10. These side wallsat their rear portions are preferably curved in such manner as to provide arcuate bearing surfaces whereby when the handle 16 is turned in one direction to release the clamping member 19 the handle may be swung bodily, together with the pin 11 to change the effective posi tion of the handle with respect to the clamp ing members. In this manner the effective downward pressure which may be exerted by the handle 16 may be easily varied.

In addition to providing an adjustable mounting for the handle 16. the threaded stem 1? is also effective for clamping or releasing the blade. It will be apparent. that during the clamping operation the stem 1'? is threaded into the pin 11 and thereby swings the supporting member about the pin 7 as an axis. lVhen the blade is being released the reverse operation occurs.

For adjusting: the position of the blade with respectto the clamping members, I have provided adjusting bars 20 havinghooked lower ends 21 adapted. to extend through the openings 22 in the blade 2 and with threaded upper ends 23. These bars are vertically adjustable in sockets 24 formed in the backing member 4: outside of the wall 10, and having enlarged interiorly threaded recesses 25 at their upper portions. The supporting member 8 may be provided with slots 26 to cooperate with the lower hooked ends of the bars 20. Threaded upon the upper ends of the bars and also having a threaded engagement with the recesses 25 are nuts 27. These nuts preferably have threads of difierent characters cooperating respectively with the bars and with the recesses whereby the movement of the nuts will be eilective for imparting an am plified movement to the blade.

This may be accomplished. by providing a left-handed thread on the bars 23 and a right-handed thread in the recesses 25, or vice versa, as will be apparent.

The scraping operation may be facilitated by providing a foot 28 having a stem 29 adjustably engaging the socket 230 which is slidably mounted on the sleeve 1 1 and which may be clamped in adjusted position thereon by the set screw 31. In some instances it is desirable to move the foot 28 from the position shown in full lines in Figure 1 to the position illustrated in dotted lines there in for permitting the scraper to be operated in a manner similar to the operation of a plane. it will be apparent that by adjustin the position of the foot. the width of the throat provided between the same and the cutting edge of the blade may be accurately regulated.

it has been found desirable to mount the stem 29 nearer one end of the foot 28 than the other, as this permits the foot to spring upwardly a slight amount at its relatively tree end when sufficient pressure is applied the handle 16. This enables the operator to easily remove a greater amount of ma terial in small local areas. as may be desired.

The locking member 4- is preferably so shaped as to provide a small portion 32, as clearly shown in. Figure 4, extending at an angle or cuiwed'with respect to the lower portion of the back edge of the backing member. The scraper during operation may be easily rocked over a wide angle about this portion, thereby providing another means for determining and regulating the depth of cut. This operation is independent of the provision of the foot 28.

Vv'ith the present construction it will be obvious that the position otthe scraping blade is adjustable relatively to both of the clamping members and independently of the msition of the handle 12. This permits the blade to be advantageously adjusted while maintaining the outer parts in the desired an gular relationship.

Further advantages of the present invention arise from the provision of an angularly adjustable handle 16 permitting the effective leverage thereof with respect to the craping blade to be varied as desired.

I claim:

' 1. In a scraper, a flexible blade, members for clamping and curving the blade, and means for adjusting the position of the cutting edge of the blade relatively to the clamping members, substantially as described. i

2. In a scraper, a flexible scraping blade, members for clamping and curving the blade, and vertically adjustable means for varying the position of the cutting edge of the blade relatively to theclamping members, substantially as described.

erative to curve the blade, means for adjust- 3. In a scraper, a flexible blade, means for clamping and curving the blade, means. for adjusting the position of the cutting edge of the blade, and means forming an adjustable throat through which the material removed by the blade may pass, substantially as described.

4. In a scraper, a flexible blade having an opening therein, means for clamping and curving the blade, an adjustable means carried by said clamping means and provided with a projection engaging the opening in said blade, and means for adjusting the position of said last named means to adjust the position of the blade, substantially as described. r

5. In a scraper, a flexible blade having a plurality of openings therein, means for clamping and curving the blade in operative position, and a plurality of independently adjustable means engaging the openings in said blade for adjusting the position of the cutting edge thereof, substantially as described. I

6. In a scraper, a supporting member, a backing member, a flexible blade, means for clamping said blade in position between said members, said clamping operation being oping the position of the blade relatively 'to I both of said members, and a handle for opcrating the scraper, substantially as described. 2-.

7. In a scraper, a supporting member, a backing member, a flexible blade, means for clamping said blade in position between said members, said clamping operation being operative to curve the blade, means for ad justing the position of the blade relatively, to both of said members, a handle for operating the'scraper, and an adjustable foot cooperating with said blade and adapted to, form therewith an adjustable through which the material removed by said blade may pass, substantially as described.

8. In a scraper,a sup-porting member,.a

throat I curved cooperating faces adapted to curve a blade clamped therebetween, a scraping blade, means for clamping said blade between said members, and means for adjusts ing said blade relatively to said members to vary the amount of projection thereof, sub- I stantially as described.

9. Ina Wood-working tool, a flexible blade of wafer-like thickness, supporting members for curving said blade and means for effecting relative adjustment between said bladeand said members to vary the amount of projection described.

10. In a wood-working tool, a flexible blade of wafer-like thickness, supporting -members for clamping said blade therebefor clamping said blade with a deflective stress, and adjusting means for saidblade of said blade, substantially as comprising a threaded blade engaging memher and an oppositely threaded nut engagin-g said member for adjusting the position thereof, substantially as described.

12. Inia scraper, a flexible blade, means for clamping the blade with a deflective, stress, an operating handle for said scraper and a second handle adapted to be swungto difierent positions to vary the effect thereof on the scraping blade when the scraper'is being operated, substantially as described.

13. In a scraper, a blade, meansffor clamping the blade in position, an operating handle, and a foot of resilient .material adapted to flex and cooperating with-said blade for re of, substantially as described.

In testimony whereof my hand.

ROBERT w. RHODES- gulating the depth of out there- I have hereunto set I

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