. Foundry practice; a treatise on molding and casting in their various details. Fig. St. up in fire-clay, as in the case of the cupola lining. Adaubing of clay is placed over the fire-brick to takethe cutting and wash of the iron. The daubing is put CUPOLAS, BLOWERS, AND MELTING FURNACES 169 on the same as the lining of the smaller ladles. In re-ceiving ladles for the cupola, the continual fall of theiron upon one point as it comes from the spout cuts awaythe lining very rapidly. Without special protection thelining will be cut away in a comparatively short time. Agood method of daubing this l
Image details
Contributor:
The Reading Room / Alamy Stock PhotoImage ID:
2AFKT05File size:
7.1 MB (528.3 KB Compressed download)Releases:
Model - no | Property - noDo I need a release?Dimensions:
1813 x 1378 px | 30.7 x 23.3 cm | 12.1 x 9.2 inches | 150dpiMore information:
This image is a public domain image, which means either that copyright has expired in the image or the copyright holder has waived their copyright. Alamy charges you a fee for access to the high resolution copy of the image.
This image could have imperfections as it’s either historical or reportage.
. Foundry practice; a treatise on molding and casting in their various details. Fig. St. up in fire-clay, as in the case of the cupola lining. Adaubing of clay is placed over the fire-brick to takethe cutting and wash of the iron. The daubing is put CUPOLAS, BLOWERS, AND MELTING FURNACES 169 on the same as the lining of the smaller ladles. In re-ceiving ladles for the cupola, the continual fall of theiron upon one point as it comes from the spout cuts awaythe lining very rapidly. Without special protection thelining will be cut away in a comparatively short time. Agood method of daubing this ladle is to have the placewhere the metal strikes built up with small pieces of fire-. Fig. 86. brick laid into the clay very closely, and the mass wellbound together with the clay daubing and thoroughlydried before the metal strikes it. The blast for melting the iron is produced by blowerssuitable to deliver the volume of air desired and to main-tain the pressure required for the particular furnace.There are two types of blower in general use: first, thepositive blast or root blower, and second, the fan. Fig. 85 illustrates one style of a root blower which is 170 FOUNDRY PRACTICE driven by a belt. The blast is produced by the rotationof the vanes, as indicated by the arrows shown in thesectional view in Fig. 86. These blowers are positive,