Granite State Monthly Volume 27

Granite State Monthly Volume 27

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1899 edition. Excerpt: ...and bush hammers, as in straight work, and in addition to these other tools are required on molded work, such as Scotia hammers, bush chisel, and various shaped chisels, and pean hammers, to facilitate cutting difficult parts of the molding. Great care is necessary in cutting in the template or bevel at the ends so that the stones will come together without trimming in the building, but often with the greatest care on the part of the cutter trimming is necessary so as to have the joints show the mold continuously, through the fault of the mason in setting. It may seem to an onlooker that it is a simple thing to chisel a line or bush hammer a stone, but care and skill are necessary from the time the stone is placed on the banker In splitting dimension stone allowance is made for any deviation from the chalk line, and to allow for the stone-cutter to finish it to the required design. Generally about two inches is allowed in quarrying, but it depends on the nature of the stone, and the quality of the work required on the dressed stone, --if for rough work sometimes n0 allowance is made, but the judgment of the quarryman decides on what he considers a necessary allowance in all cases. To split dimension stone there is often considerable waste, and the skill of the quarryman is often taxed to get out a stone at the required dimension and have it clear of defects of knots, seams, and stripes. The waste is either thrown over the dump, or where the quarry is near a city the waste stone, technically called "grout," is often utilized for foundations for buildings, bridges, worked up into paving blocks or crushed for macadamizing purposes. In splitting random stock the same process is gone through, only the quarryman, not being limited more

Product details

  • Paperback | 128 pages
  • 189 x 246 x 7mm | 240g
  • United States
  • English
  • black & white illustrations
  • 1236811607
  • 9781236811608