Young, George, jr, Baxter, Hubert Eugene, joint author · New York, Macmillan · leaf 240
n the section. 2. The heel cut for a common rafter. This is also shown intrue size on the section. 3. The side cut for a jack rafter. This angle is shown on planas hVm. This angle does not show in its true size. Let itbe rotated on hm as an axis, until it is parallel to H. Duringthe rotation, A;… … rafter (§§ 27, 53). The angles marked 4 and 5 are the truesize of the required angles. 6. The top bevel of the hip rafter. Assume an H plane ofreference, as shown by IIA. Extend the roof planes to intersectthis plane. The traces will be yP, ZZ*, and ZZ, as shown.The line of intersection of the…
Geometry, Descriptive
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