The mechanic's text-book and engineer's practical guide; containing a concise treatise on the nature and application of mechanical forces; action of gravity; the elements of machinery; rules and tables for calculating the working effects of machinery; of the strength, resistance, and pressure of materials; with tables of the weight and cohesive strength of iron and other metals (1866)
pendicular A «q, and draw the line q D Lequal and parallel to A C;bisect A C and A q in r andn; make C I equal to C D,and draw the line I r q ; drawalso the line n s D ; bisect sD with a line at right angles,and meeting the line C D ing ; draw the line g q, make C P equal to C k, and drawthe line g… … 14 PRACTICAL GEOMETRY. 14. Bisect the chord A B, and fix at right angles anystraight guide, as b c; pre-pare, of any suitable mate-rial, a rod or staff, ecfual tohalf the chords length, asd ef; from the end of thestaff, equal to the heightof the arch, fix a pin e,and at the extremity atracer f;…
Mechanical engineering
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