West's Moulders' Text-Book; Being Pt. II of American Foundry Practice ...

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. 1901 edition. Excerpt: ...and " fire it up" until you have a solid coke or coal fire. Then take a plain cylinder B, made of light boiler-iron, 36" long, and of the right diameter to fit the top of ladle. This cylinder should have a 2" hole at one end for tuyere pipe, and should be daubed up same as a ladle, and dried ready for use. Place the cylinder top of ladle, daub up around the joint, and add fuel until you have a good bed 6" or 7" above tuyeres. Put on such iron as you wish to use, and as much as you need to pour off the piece. Nearly all small foundries have tuyere pipes that can be detached from cupola without much trouble, and used for blast by adding a small piece of pipe to fit tuyere hole in cylinder. After the iron is down, lift off stack, and pour as usual. By this method a ladle holding three hundred pounds can be melted full of good hot iron in a short time. MAKING A CURVED PIPE FROM A STRAIGHT PATTERN. Kt Olin Scott, Benninoton, Vt. A Short time since, a customer called on me for a piece of cast-iron pipe to make a curve of about thirty degrees in a pipe about three feet in diameter. He wanted it forthwith for a repair job. Having no such pattern, nor forms for sweeping such a mould, I made the piece in a creditable manner by the means shown in the accompanying sketch. First I got a pattern for a draw-pulley rim, which was about £" thick, 6" wide, and 36" diameter, having but little draught. Around this pulley-rim I fitted a set of cores, a section of which is shown at e. In the under side of these cores was a recess, to form the bottom flanges of the pipe. I also had a piece of a circular flange pattern fitted to the outside of the rim pattern, which piece of flange pattern was about one-sixth of...