. Carpenter. ofan inch—below the bed or sole surface,the friction is reduced to a the plane is lightened, though fullyas capable as that with an entirely flatsole. Rafter Problem(By A. A. Stafford, L. U. 141.)I have noticed many books in brother chip has submitted draw- in., rise 11 ft. 8 in. (10 in. pitch). Laythe rule as shown, 14 in. to 118-12 in.,reads on rule 18 7-32 in., or 18 ft. 2g See that you do not multiply anyhypothenuse figures and make a you look at the reading right, you havethe lengths all in a nutshell. Run andrise, always cut, seat
. Carpenter. ofan inch—below the bed or sole surface,the friction is reduced to a the plane is lightened, though fullyas capable as that with an entirely flatsole. Rafter Problem(By A. A. Stafford, L. U. 141.)I have noticed many books in brother chip has submitted draw- in., rise 11 ft. 8 in. (10 in. pitch). Laythe rule as shown, 14 in. to 118-12 in.,reads on rule 18 7-32 in., or 18 ft. 2g See that you do not multiply anyhypothenuse figures and make a you look at the reading right, you havethe lengths all in a nutshell. Run andrise, always cut, seat and plumb, i. in. by 11 8-12 in. (or 12 in. by 10 ). Now, then, hips and valleys are thesame procedure, only we must have anew run. Note how rule and square , THE CHRPEDTER 1 lays. Edge of rule, from corner ofplate, on diagonal line to base of plumbcut line, is run, and reads on rule 19 in. by 11 ft. 8 in. rise, the same as square No. 2 sets plumb,the problem is plain. Then I think. common rafter. Now, if we swing squareNo. 2 on dotted line A to the corner ofplate, and apply rule on rise and run aship length, you will find the reading onrule nearly 23 in. equal 23 feet and closeenough to cut this length. Cuts—cuts—lets see. So many mentry to use common rafter cuts on every rafter by its own rise and this hip, 193 in. by 11 8-12 in., willcut plumb and seat; or 10 in. pitch by17 in., as 17 in. is (nearly) diagonallyequal 12 in. run on right angle—or 5 be added to every common foot fordiagonal run. Side cuts, length by run. These figuresnever have to be exact. Keep away fromfractions. Example: This hip we couldtake 23 in. for side cut as one figure, and193 in. (our run) for the other, as theyare both nearly correct. But here is an-other way: Apply rule across corner ofsquare 10 in. (rise) by 17 in. (run)—reads on rule nearly 191 in. Now, Iwould take 20 in. length, 17 in. run, orany equivalent for convenience. So yousee
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Keywords: ., bookcentury1900, bookdecade1910, bookidcarpenter33u, bookyear1913
