. Carpenter. 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 its all done by working your head alittle, and the two notorious tools, ruleand square. Dont forget to use the oneon the other. Study Fig. 1 and imagine To Pit Purlin Plates Againt HipRafters (By James Barry.) Place square on stick at 6 and 12. Layoff size of top of stick and face sides
. Carpenter. 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 its all done by working your head alittle, and the two notorious tools, ruleand square. Dont forget to use the oneon the other. Study Fig. 1 and imagine To Pit Purlin Plates Againt HipRafters (By James Barry.) Place square on stick at 6 and 12. Layoff size of top of stick and face sides bothways from corner of square—B to A, 6in. for top side, and B to C, 6 in. for faceside, or exact size of rafter. From these three points ABC squareacross from A to 1, B to 2, C to 3. Now square end of stick to be miteredon face D E, or on top D F. Next take distance from 1 to 2 and setoff on bottom corner of face, from E to G,and mark G D, which required level forface of purlin plate against hip Take distance from 2 to 3 and set it off,on back corner of top from F to H andmark H D, which will give bevel for topside of purlin plate against hip to marks G D H. Mark opposite sideof stick, as shown at J G and J H. The bevels will be the same on any sizestick having 6 in. pitch. Sticks of any size and pitch may belaid out by this rule. 116
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Keywords: ., bookcentury1900, bookdecade1910, bookidcarpenter33u, bookyear1913
