Engineering Office Systems and Methods; Together with Schedules and Instructions for the Collection of Preliminary Data for Engineering Projects Sampling, Inspecting and Testing Engineering Materials Conducting Domestic and Export

Engineering Office Systems and Methods; Together with Schedules and Instructions for the Collection of Preliminary Data for Engineering Projects Sampling, Inspecting and Testing Engineering Materials Conducting Domestic and Export

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1915 edition. Excerpt: ...poor castings and large pulleys allow more. Allowance for Castings In order to allow for fillets and over-run in weight of castings, it is necessary to add a percentage to the net calculated weight varying from 5 percent in the case of large castings to 10 percent in the case of small pieces with numerous fillets. Table VIII.--Unit Weights of Substances most commonly used in Machinery Estimating Detail Sheets In Fig. 83 is given an example of a convenient form of sheet for recording the details of an estimate. Its use practically compels a certain amount of system in taking off the quantities; so that all plates, all loam castings, etc., will be listed together and cost computed at the proper rate. By preparing the material-estimate in this methodical manner, and by checking-off each piece as listed by a red mark on the print, no serious omissions of items should take place. The same form may be used for making the estimate of direct labor required; and the totals may then be transferred to the Estimate Summary Sheet (Fig. 81) for addition of Indirect Costs, etc. SEC. III. STRUCTURAL STEEL ESTIMATING A Structural Steel Estimating Method General The method of "taking off" structural steel material outlined below is one which, with slight modifications, is quite generally used in estimating offices throughout the country. It is submitted, more particularly, as an aid to engineers in other than structural steel offices who may have occasion to make or to check estimates on work of this character. It has been the author's experience that engineers who have never done structural steel estimating quite frequently obtain results Fig. 83.--Heading of detail sheets for mechanical estimating. Size, Sin. X 13 1/4in. in this work that are 25 percent...show more

Product details

  • Paperback | 208 pages
  • 189 x 246 x 11mm | 381g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236644190
  • 9781236644190