Marder, Luse & Co. / Price list and printers' purchasing guide : showing specimens of printing type manufactured by Marder, Luse & Co., foundry, Chicago, Illinois, U.S.A.
Catalogue, pp. -172
CHICAGO TYPE FOUNDRY. TYPE-MAKING. THE frequent inquiry, "How do you make type?" has induced us to print, in a convenient form, the required information. These inquiries often come from men who have handled type all their lives, and from men who have a desire to know more of an industry that is so intimately associ- ated with their business, and so indispensable to the dissemination of general knowledge. Type metal is a composition of lead, tin, antimony and copper, all of which metals are necessary to give the required ductility, hardness and toughness. No other composition has ever been found which so well an- swers all the purposes for type-making. The first step in the_ making of type is cutting the letter desired, on tie( end of a piece of fine steel, forming the Punch, which is afterward hardened. This PUN01. is an operation requiring great care and nicety-there being comparatively few adepts at it-that the various sorts in a font may be in harmony with each other as to their proportions, width, height, 0tc. A separate punch is required for each character in every font of type, and the making of them is the most expensive operation in type-found- ing. During the process of its manufacture the punch is frequently tested or measured by delicate gauges, to insure its accuracy. When finished a smoke proof is taken, and if the letter is pronounced perfect it is driven into a piece of polished copper called the Drive. This passes to the fitter, who makes the width and depth of the faces uniform throughout the font. They must then be made to line exactly with each other. When thus completed, the drive becomes the Matrix wherein the face of the type is made. This undergoes other processes in fitting and finishing, to make it true and square with the body of the type. Matrices are also DRIVE. made by the electrotype process, for the pur- xmATR. pose of copying and multiplying certain faces without incurring the great expense of cutting new punches. The Mold in which the body is formed is made of hardened steel, in two parts; one part is fastened to the machine and is stationary, while the other is movable, so that it may be adjusted for the proper width of the letters, as one is wider than another. The accuracy of these molds is patent to every printer who knows that the sides of type bodies must be exactly at right angles, or they would be useless,
Based on date of publication, this material is presumed to be in the public domain.| For information on re-use, see http://digital.library.wisc.edu/1711.dl/Copyright