Rudimentary treatise on the erection of dwelling-houses : illustrated by a perspective view, plans, elevations, and sections of a pair of semi-detached villas ... (1896)
Brooks, S. H. (Samuel H.) · London : C. Lockwood and Son · leaf 101
77 PORTABLE COMPASSES. ther and folded up (or the points turned in_, from whence is derived the name of turn-in compasses) they occupy a space not more than three inches long, and may be carried in the pocket without being an incum- brance. The annexed engraving represents the instru- ment when all… … legs of the instrument are f and movable, as usual, by a joint at a. The lower joints, b and c, afford the means of setting the front limbs, d and e, perpendicular to the paper, as explained before when describing the last instrument. Each of the point limbs may be re- moved from the legs f and g,…
House construction
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