Some cool precision grinding photos:
Image from page 45 of “The manual education college, comprising a complete statement of its aims, approaches, and final results, with figured drawings of shop exercises in woods and metals” (1906)
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Identifier: manualtrainingsc00wood
Title: The manual instruction school, comprising a complete statement of its aims, methods, and outcomes, with figured drawings of shop workouts in woods and metals
Year: 1906 (1900s)
Authors: Woodward, Calvin Milton, 1837-1914. [from old catalog]
Subjects: Manual coaching. [from old catalog]
Publisher: Boston, D. C. Heath & co.
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress
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Text Appearing Before Image:
or the T-bevel gauge. SeeFig. ten for the position^ even though using the rip-saw. The basic and special features of the jack and the smooth-ing planes need complete exposition and illustration. Methods of grinding, oil-stoning (see Fig. 11), and settingplanes need to be offered with wonderful precision, and they shouldbe nicely illustrated by drawings.^ 1 One of the series of workouts offered below is based on this principle. two For many of these exquisitely-drawn wood-cuts, I am indebted to the littlevolume, How to use Wood-operating Tools published by Ginn & Heath in 1881. three There are a variety of kinds of planes which the teacher could use in his lectureon planes. The Bailey patent adjustable plane is a fantastic preferred with some,even though other people prefer the old-fashioned woode^ plane. 32 Very first YEAR OF MANUAL Coaching College. [Chap. IL When lumber is rough and far more or significantly less irregular, the planeis an indispensable tool, and the workman should know histools. The operation of reducing a rough piece around
Text Appearing Following Image:
Fig. 10. Employing the Rip-Saw on a Board. 2×2 and a foot lengthy to a smooth ll square, is not an easyone, and most students fail at very first. Some succeed only aftermany failures, and some by no means succeed. The technique of holdingthe plane for the 1st component of a stroke is shown in Fig. 12. Theleft hand keeps the toe of the plane down. Chap. II.] SAVING A SPOILT PIECE. 33 When a boy has spoilt his piece, i.e. taken off so much stockthat a piece If square is no longer feasible, it is a good program tochange the dimension to IJ and let him attempt again. Similarly,minimize to li, to 1, and even much less following additional failures. Ihave noticed boys, who, like the monkey judge in the fable, inevita-
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