Stained glass work; a text-book for students and workers in glass by Whall Christopher 1849-1924

Author:Whall, Christopher, 1849-1924
Language: eng
Format: epub
Tags: Glass painting and staining
Publisher: New York, D. Appleton and Company
Published: 1905-03-25T05:00:00+00:00

Fig. 71.

Of General line to raise a perpendicular. Let A B be

Conduct the given straight line (this must be the

*ced ^^ /(!?«^ side of the form, and the point B

must be one corner of the base-line): it is

required to raise from the point B a line

perpendicular to the line A B.

(1) Prolong the line A B at least 6 inches beyond B (if there is not room on the paper, it must be pinned on to a smooth board, and a piece of paper pinned on, so as to meet the edge of it, and continue it to the required distance).

(2) With the centre B (the compass leg being in all cases placed with absolute accuracy, using a lens if necessary to place it) describe the circle C D E.

(3) With the centres C and E, and with a radius of not less than 9 inches, describe arcs intersecting at F and G.

(4) Join F G.

Then, if the work has been correctly done, the line F G will pass through the point B, and be perpendicular to the line A B. If it does not do so, the work is incorrect, and must be repeated.

When the base and the springing-line are drawn on the form, the form must be accurately measured from the bottom upwards, and every foot marked on both sides.

Such markings to be in fine pencil-line, and to be drawn from the sides of the form to the extreme margin of the paper, and you are not to trust your eye by laying the lath flat down and ticking oflF opposite the inch-marks, but you are to stand the lath on its edge, so that the inch-marks actually meet the paper, and then tick opposite to them.

Also if there are any bars in the window to be observed, the places of these must be marked, and it must be made quite clear whether the mark is the middlp of the bar or its edge; and all this marking must be done lightly, but very carefully, with a needle - pointed pencil.

In every case where the forms are set out from templates, the accuracy of the templates must be verified, and in the event of the base not being at right angles with the side, a true horizontal must be made from the corner which is higher than the other (the one therefore which has the obtuse angle) and marked within the untrue line; and all measurements, whether of feet, bars, or squaring-out lines, or levels for canopies, bases, or any other divisions of the light, must be

T 289

Of General Conduct and Procedure

Of General made upwards from this true level

Conduct LINE."

and Procedure These rules, I suppose, have saved me on an average an hour a day since they were drawn up; and, mark you, an hour of waste and an hour of worry a day—which is as good as saving a day's work at the least.

An artist must dream; you will not charge me with undervaluing that; but a

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