. Peoples' pocket stair builder and carpenters' hand book . .. rafter as shown at abc, and as describedat Figs. 1 and 2, riate 49. 2 Appendix No. 1. Foi- the cut on edge of sheathbig.—Take BH on the bladeand DH on the tongue. The tongue gives the cut, also the sidecut of purlin against the hip, gutter stop, and level planceer, whencanted to the pitch of rafters. For the hacking of hip rafter.—Take DE on the blade andDS on the tongue. The tongue gives the bevel ; the angle forsaddle on hip may be laid off from this bevel if required. To find the cut on the lower end of a hip or valley rafter to
. Peoples' pocket stair builder and carpenters' hand book . .. rafter as shown at abc, and as describedat Figs. 1 and 2, riate 49. 2 Appendix No. 1. Foi- the cut on edge of sheathbig.—Take BH on the bladeand DH on the tongue. The tongue gives the cut, also the sidecut of purlin against the hip, gutter stop, and level planceer, whencanted to the pitch of rafters. For the hacking of hip rafter.—Take DE on the blade andDS on the tongue. The tongue gives the bevel ; the angle forsaddle on hip may be laid off from this bevel if required. To find the cut on the lower end of a hip or valley rafter toline ivith the common rafter, wlien they are cut square instead ofplumb, for the corona in a raking cornice.—From D, Fig. 2, andperpendicular to CB draw Dn, draw no parallel to DC, joinDO. The angle at O gives the bevel. Take 12^ on the blade, andadjust the tongue to DO from the line BO, the tongue gives thecut. The above cuts for jack rafters, purlins and hip backing, are for hipswhen square on plan. When rectangular on plan, follow Fig-s. 3,4 and Pig. 3. Shows plan of a hip aceommodctting tiuo pitchesithe seat GD of hip being the diagonal of a rectili7ie(il parallelo-gram ADJG on plan. Figs. 4 and 5 sfww tlie elevation ofcommon rafters. AD is the run and DB the rise for the rafter AB; AG \sthe run and AK the rise for the rafter GK; [BE has the sameinclination as ASj. Perpendicular to BE draw BH; at rightangles to AD draw HL. Make DC equal DG, join BC forlength and inclination of hip rafter. From D and at right anglesto SCdraw DS; from D and square to DG draw a line to inter-sect GA prolonged at Q, also intersect GJ produced at jR; atright angles to KG draw KP, Make 23Jlf equal AP; from Mdraw a line parallel with GrJ to intersect DG prolonged at N. Appendix No. I. 3 For the cuts and length of covimon rafter ABfor the sideAGD.—Take the run AD on the blade and the rise DB ou thetongue to a scale. The blade gives the foot cut and the tonguethe plumb cut. as shown at 4
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Keywords: ., bookcentury1800, bookdecade1880, bookidpeoplespocke, bookyear1880
