The Art of Casting in Iron by Simpson Bolland

Author:Simpson Bolland
Language: eng
Format: epub
Publisher: Skyhorse Publishing
Published: 2011-11-23T00:00:00+00:00

Fig. 130.

When practicable, it is always best to place these chaplets in their respective positions on the pattern, and ram them in the cope, to be afterwards withdrawn, and the front edge of the hole enlarged by a taper plug made for the purpose. By this mode of procedure two very important ends are gained, viz., accuracy as to position, and freedom from anxiety with regard to the edge of the hole, which, being clear of the chaplet, allows for its easy motion in either direction without fear of damage to the cope.

To those unaccustomed to the use of a variety of studs and chaplets, Fig. 131 will be of interest, and serve the purpose of an object-lesson; it is the sectional elevation of a 36″ × 36″ column having internal webs formed by cores, and as all these cores are entirely surrounded with iron, they must of necessity be supported, steadied, and anchored down by a system of studs or chaplets, or, as is seen in this case, It may be a combination of both.

Fig. 131.

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