Rudimentary treatise on the erection of dwelling-houses : illustrated by a perspective view, plans, elevations, and sections of a pair of semi-detached villas with the specification, quantities, and estimates and every requisite detail, in sequence, for their construction and finishing / by S.H. Brooks. (1874)
Brooks, S. H. (Samuel H.) · London : Lockwood · leaf 110
ves them a tendencyto separate from each other to the extent of abouthalf an inch, which tendency is counteracted by ascrew, c, whereby the pen-points may be set to anyrequired interval within the above limits. The screwsa and b are for the purpose of setting the points of theblade to draw lines of… … 90 ERECTION OF DWELLING-HOUSES. lelism may be secured. It is usually known by thename of the Road Pen, having been originally designedto draw lines of roafls upon maps, both sidesn being drawn at the same time. For such pur-poses it is very convenient, as one side or fencemay be drawn with a…
Building · Architecture, Domestic
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