US1295788A - Framing-guide. - Google Patents

Description

R. R. NANCE..

FRAMING GUIDE.

' APPLICATioN FILED Aue.25, 1911.

1,295,788. Patented Feb. 25, 1919. I 2 SHEETS-SHEET l.

HNVENTOR WITNESSES @www R. R. NANCE.

FRAMING GUIDE.

APPLlcATxoN man AuG.25. 1911.

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WITNESSES UNITED srarns "PATENT ortica.

` lnnLzEivrAiv n. NANCE, .or FnnaDEnrcmoKnAHoMa FRAMING-GUIDE.

Specification of Letters Patent.

Patented Feb. v25, 1919.

Application -led August 25, 1917. Serial N0.-188,168.

v cation.

This invention lrelates to framing guides,

and particularly to a guide structure adapt ed for use withan-.ordinary steel square such as is now commonly -used by carpenters, and others, and which ,guide is' lolesigned particularly for use lin planning and cutting a frame work, or brace framing, vin laying off a stair, measuring and vfinding cuts for braces, forming polygons, cutting miters, and the like.

An object of the invention is to provide a guide bar which has indicating markings IJthereon and vwhich is adapted'tohave vthe steelsquare fitted thereto `and adjusted. to varioussettin-gs, to. thus provide a guide of such character that when the square is laid .uponthe timber or piece of lumber to be cut, it will be presented in the proper relation for use and will be positively held to give the proper angle.

A further object lies inrproviding means by which the square can` .be positively clamped to lock in the set relationvwith respect to the guide bar, which clamping means is so constructed that immediately ,this clamping pressure is released, theparts will, be moved from bearing engagement upony the tongue and blade of the square, thus making it possible to quickly kandeasily adjust the same for the dili'erent uses vas stated above.

Yet another object resides in providing scales upon the guide bar in Vclear and, concise form so that by following instructions Y and claims, V4my inventionrconsists in: certain an ordinary mechanidnot highly skilled in the use of gures orin calculations usually required inv framing, ,can with the greatest facility properly. obtain the length of and mark o seat. and plumb cuts of roofV framing and bracing timbers for use upon common rafters, hip rafters, octagonal hiprafters, andthe like, andwhich may withequal accuracy be y used in( layin-groffV a stair, or in markingfoif` and layinglout polygonal forms and` framingv structures. y

With the above and other objects-in view, lwhich Awill bein part described and inpart understood from theispeciication,drawings,

novel featuresof construction and combinations of parts which wil'lbe hereinafter more fully set forth.

In the drawings v f vFigure lis aview in ,planshowingthe guide vbar with a ysquare tted thereon and illustrating vthe manner of using the same;

Fig. 2is a bottom plan view of the disclosure in Fig. l

Fig. 3 is a sectional view taken on the line 4 is an .enlargeddetail view of the guide barand intendedv to better showVv the manner of giving the indicated scales;

Fig. 5 is a transverse sectional view on the line 5 5 of Fig. 4;

F ig. 6 is afragmentary view to better disclose the arrangement of the slide block by which one of the squareclamping means is carried; f

Fig. 7 is a sectional view taken on the line 7.-7, of Fig. 4; 4

Fig. 8 is a perspective view to better disclose the form ofthe slide'block;

Fig; 9 is asectional view` on ,the line 9-9 of F ig.i7, and looking in t-he direction indicated bythearrow; and, Y

. Fig. l0 is an enlarged sectional view on the linelO-lO of Fig. 9 with the clamp screw omitted.

The guide bar l, which is wood, metal, or other suitable materia-l, has the edge 2 thereof formed as a straight-edge, and this bar hasanelongatedslot 3 formed trans versely therethrough and extending from adjacent one end of the bar, ina parallel line with respect to the straight-edge `2, and from near the right end to substantially the middleof thebar.` n

The Y* material yof vthe guidebar l' iscut away on the rear face so that a guide track is formed as shown ,at 4l, and a substantially T-shaped slide block 5 is formedtofbe received inh `this track with the central ribV thereof extending through the. slot 3 and having its upper face substantially Hush with `the face of the bar l. A boss 6 is provided on the upper face of the central rib,V

anda bore 7 is formedthrough this kboss and the slide, block 5. A clamping button 8, the structure of which isbetter shown in FigflO, hasa .bore 9; therethrough-lined up with the bore?, ofthe slide block 5, Vand the bore is enlarged on `thelovverside. of this'v button, sothatthe boss 6 of the block 5 will have a loose lit therein. A clamp, bolt ll is passed Y through the bore 7 of the block 5 and the boss 6, and through the bore 9, of the clamp button 8, and a thumb nut 12 is fitted on the is fitted in place and the thumb nut 12 isl tightened down, it will of course be appreciated that the'. clamping button 8 will be rocked on the point 14; as a fulcrum, due to the fact that this point will bear upon the face of the bar 1 adj a-cent the slot ,3 thereof, andV at the same 'time the head portion of the slide block 5 will vbe clamped within' the track 4L formed in conjunction with the slot 3. yAs has been stated, the button 8 is cut away at one side on the lower face, and this clearance is sufficient so that the blade or body of an ordinary steel square can be fitted therebeneath, and as the thumb nut is tightened down, the Vrocking of this button 8 on the ful-crumed point 14 will cause the same to bear down and clamp ragainst the blade o-r body ofthe square, the slide block 5 and consequently the button 8 being looked in rigid setting with respect to the guide bar 1 in the manner set forth. As it is the intention Vthat the square 'shall be readily adjustable when the thumb nut 12 is loosened, it is preferable that a `coiled spring` be mounted around the clamp boltv 11 within the bore 13, this spring being indicated by the Vreference numeral 15` in Fig. 5. spring 15 bears at one end upon the boss 6, and at its other end against the shoulder at the headof the bore 13, and 'thus as the thumb nut 12 isV loosenedV upon the clamp bolt 11, theY clamp button 8 will be moved and swungupwardly on its fulcrum point 14 and the reduced edge of this button will f be raised from its clamping and Vfrictional bearingengagement with the blade or body of the square.

As' has been stated, the slot 3 is formed preferably Ventirely within one Vend of the bar 1, although of coursethis `slot might hie given greater length than above' speci-V the tongue of the steel square, when the Yde- Y vice. is to be used in measuring and marking Vso timbers and the like, openings 16 are provided transversely through the guide bar 1 adjacent the other end thereof, a clamp bolt 17 being-'fitted throughoneiof these openings'with its screw-threaded V'end eX tendedfabovel the top-face of the bar.

clamping button .18, which is very similar to the button 8V but'which need'not have the The As it is desired to also set and secure yof sides of the polygons and the second the enlarged bore 10 is fitted over the threaded end ofthe clamp bolt tol-have the fulcrum point thereof bear upon the upper surface of the bar. As is the case with the button 8,V this clamp button 18 is cut away at one side lfor reception of the -steel square, and a coiled spring 19 is fitted around the'clamp button 18, and to bear upwardly against theY shoulder of the topof this bore to normallyV exert force -to raise the button 18 from. clamping engagement with the tongue of' the square vas the same is fitted Within the cut out or reduced'portion of the button. A thumb nut 20 isoprovided to be fittedon the threaded end of the clamp bolt 17 Yto be turned down torock this button 18`aro-und its fulcrum point and move thesame against the force of the spring 19,` to accomplish clamping- 'pressure upon the tongue of a4 steel souare. By providing the clamp buttons 18 and S, the latter of which is mov able through the sliding mountingof the block 5, it is possible to so adjust the clamping parts that a steel square can be set upon bolt' 17 tobe Yreceived within the bore of the the guidel bar 1 to haveV any desired angle Y rinformation with relation to legends on the face opposite the respectiveflines of saidl scale. That is to say, as shown in the drawings, the second line ofthe scale givesV the pitch, or rather the variouspitches Yof the rafters being cut. By preference the Yuppermost lines of the scale contains figures to c0 act with the respect graduations of the'blade of an ordinary steel square, which blade is marked as usual with figures. VThe Vthird linegives'the'length per oneY foot run and plumb lcut ofthe common rafter. r)The next is the same'ona hip rafter, and the neXt'the same on an Octagon rafter. Adjacent the mark 21v are legends as shown. TheY mark 22 at the lower kedge of thebaris for framing polygons, and a't'such times thegraduaf Vtions 12 on the tongue ofthe square will intersect the mark 22. *The* scale near the lower ing but two rows, theQiirst being the number figures to coactwithgraduations on the blade edge of the guide is shown in Fig. las hav- Yofthe'squ'arewhen the latter is' reversed lor 1 turned with itsfangle downwardinsteadof Y' upward asshown in Fig. .1. 'Atthis time, the f1 markings of the `lowermost scalefmust 'rac'r- Y curately intersect with the graduations on the blade, while the appropriate graduations on the tongue must accurately intersect the mark 22. Similarly, when the square is used with its angle upright, as shown in Fig. 1, the graduations must intersect the proper markings on the upper scale and at the point 21. The buttons described above are for holding the two arms of the square after it has been laid across the bar and adjusted to the proper point. The right hand button may obviously be adjusted within its slot. When the tongue of the square extends at a considerable angle to the bar, -it may be necessary to adjust the bolt or screw 17 into the other hole 16 near the left end of the bar, and this explains the use of a yplurality of holes at this point.

In the use of this framing guide, the frame or timber to be marked is laid across the straight edge 2 as shown in Fig. 1, and an ordinary steel square is laid over the face of the bar 1 and clamped thereto by the buttons after it has been properly adjusted. It will hardly be necessary to give the various angles which may be found, and an explanation of what may be the simplest will prove sutlicient. Let it be assumed that it is de,

lsired to cut a common rafter of pitch or 6 inches rise per foot 0n a building which is ten feet wide. The legend at the left end of Fig. 4 directs the numeral l2 on the tongue of the square be set directly opposite the point 2l. The operator finds the pitch 3; in the second line of the scale to the right end of the bar, and opposite thereto is the numeral 6. This indicates that the 6 inch point on the blade of the square must be set opposite to the markings of this scale. Vith the square adjusted and the buttons set up tight,

the plumb cut can be markedV on the timber or work along the side of the blade of the square, and the seat cut along the side of the tongue of the square. The pitch of the rafter is found along the second line of the scale. For a rafterhaving a five foot run, which would be the case in a building ten feet wide,

it is necessary only for the operator to mark the timber opposite the point 21 and again opposite the point wherev the blade crosses the straight edge, then move the bar and square to a second position with the tongue crossing the last-named mark and make a second mark with the blade in its new position and thus step oif five times, along the timber, and then mark for the plumb cut as above shown.

I claim:

1.V A framing guide for use with a square, the same consisting of a bar having a straight edge to abut the beam being worked, one fa-ce of the bar being inscribed near one end with a mark to coact with the proper graduation on the tongue of said square and near its other end with scales whose figures give various pitches and the respective graduations on the blade of said square which must bel set in coactive relation to the scale marking in order that said blade will indicate the plumb cut and said tongue the seat cut on the work simultaneously.

2. A framing guide consisting of a bar having a straight edge and a plurality of openings near one end and a longitudinal slot near its other end, and two fastening devices for clamping a square to the face of said bar, one selectively engaging one of said openings and the other adjustably mounted in said slot; the bar near one end having a mark intersecting said straight edge opposite which a certain point on the ton e of the square is to be set, and the face of the bar along its slot having scales Whose markings intersect the straight edge and whose figures indicate the pitch and the respective point on the blade of the square to be set opposite thereto, whereby the blade will indicate the plumb cut and the tongue the seat I RELZEMAN R. NANCE.

Vitnesses Dock ETH-ELTON, J. OR'A CARR.

Copies of this patent may be obtained for ve cents each, yby addressing the Commissioner of Patents, Washington, D. C.

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