NEW TECHNICAL BOOKS Every new volume in any branch of practical science that is received at Our Technical Book Department contains one of the largest and most widely assorted stocks in this A. C. McCLURG & Co. FOR YOUR OWN PERSONAL USE The Rapid YOU need this instrument right on your own desk. Every man does who has an idea to express. In one half the time spent in going to the drafting room and explaining what you want to the draftsman you can, with the aid of the Rapid Sketching Device, jot down your idea yourself with perfect clearness and accuracy. The Rapid Sketching Device is a money saver, because it is a time saver. It enables you to draw and scale your lines at the same time and at any desired angle. It consists of a graduated square, which, by means of a protractor, can be set at any angle, thus giving parallel lines anywhere about the board. This parallel motion is accomplished by means of an arm consisting of two pivoted parallelograms which join the protractor to the left hand corner of the board. Spring stops are provided for the zero, 30°, 45°, 60° and 90° angles, so that these may be obtained without stopping to read the protractor. The blades of the square are scales and are interchangeable; furnished in any length and any graduation. Also straight edge for inking. The Rapid Sketching Device can be used for drawings up to 18"x24", and is ordinarily used on a 20 x 27" board. Sent on 10 days Approval on Receipt of $4.75 If satisfactory send us $2.00 a month for seven months. Otherwise return device to us and we will refund your money. The cash price is $17.75. The outfit consists of one 20'x 27" board, one Rapid Sketching Device and one set of scales. Complete Information on Application. Universal Drafting Machine Co. 220-226 SENECA STREET WATCHMAKING PAYS 50 Million Timepieces to be Repaired! Accurate time an absolute necessity in the business world. When "time is money,' the watchmaker gets his share of profit. AT ATC Learn Watchmaking HÔME by the De Selms Chart System, copyright- STRUCTURAL DRAFTING We teach by mail only and guarantee success. before. TEAR OFF and send this advertisement to us today and receive our 200-page Bulletin containing outlines of our Mechanical, Architectural and Structural Drafting courses, and over 60 other courses in Engineering. AMERICAN SCHOOL OF CORRESPONDENCE, CHICAGO, ILL. |
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