Langley, Batty, 1696-1751 / The city and country builder's and workman's treasury of designs, or, The art of drawing and working the ornamental parts of architecture
Roof beams and trusses, pp. Plate 1.-Plate 14. ff.
Page Plate 1.
The Splicing or lengthening of Beams Explained Plate 1. A Beam camber, with an Inch and 1/4 Spring; to 25 Feet Extent Different Truss's for Girders and Beams Different Scarfings for Wall Plates, Raisings &c Batty Langley Invt. 1741 Published November the 16th. 1741, by Sam. Harding. Tho. Langley Sculp
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