# Machinists' and Draftsmen's Handbook: Containing Tables, Rules, and Formulas, Intended as a Reference Book for All Interested in Mechanical Work

Van Nostrand, 1899 - Mechanical engineering - 438 pages

### Popular passages

Page 439 - The Boiler-Maker's Ready Reckoner, With Examples of Practical Geometry and Templating for the Use of Platers, Smiths, and Riveters. By JOHN COURTNEY. Edited by DK CLARK, MICE Fifth Edition 4/O *«* The last two Works in One Volume, half-bound, entitled " THE BOILERMAKER'S READY-RECKONER AND ASSISTANT.
Page 71 - The exponent of the power to which a fixed number called the Base must be raised in order to produce a given number is called the Logarithm of the given number.
Page 69 - A geometrical progression is a series of numbers, which increase or decrease by a common or constant ratio.
Page 200 - The square of the hypothenuse is equal to the sum of the squares of the other two sides ; as, 5033 402+302.
Page 401 - PITCH AND LEAD OF SCREW THREAD. The terms " pitch " and " lead " of screw threads are often confused. The pitch of a screw thread is the distance from the center of one thread to the center of the next thread, whether the screw has a single, double, triple, or quadruple thread.
Page 1 - The fraction, a/b, where the numerator is a and the denominator is b, implies that a is being divided by b. The denominator of a fraction can never be zero since a number divided by zero is not defined.