Fred T. Hodgson · Frederick J. Drake and Co. · leaf 397
t most saw and moulding mills. HOW TO USE THEM 393 They should be run in lengths and then cut and mitredon the job. Illustration No. 20 shows various formsof nosing. Fig. 1 is a simple nosing- for common work.Fig. 2 may be used for school stairs, etc. Figs. 3 and4 are well adapted for a good class… … Sections ofc NosingMoulds with Riser Boards. no. 20. concrete riser when running and trowelling off thetreads. The dotted lines indicate the line of tread.Nosing moulds are cut in the centre of the section, andafterwards the two parts are held in position withscrews while the steps are being filled…
![An illustration from A Dictionary of science, literature, and art [electronic resource]: comprising the history, description, and scientific principles of every branch of human knowledge; with the derivation and definition of all the terms in general use (1844)](https://img.insideoutlibrary.com/img/200/ia-62523189.5956.emory.edu-1036-303.webp)
