, and The device is exceedingly simple, and constitutes a neat can be easily atfached to any ladle, old or new. and handy attachment. Patented through the Scientific In the annexed engraving, Fig. 1, D represents the ladle, and B the vertical conduit on the side which opens into the bottom of the… … METALLIC ARCHES FOR TUNNELS. and discharges into a smaller ladle, shown in Fig. 2. This We illustrate herewith an improvement in the construction is similarly constructed for the purpose of first delivering American Patent Agency November 27, 1877. For further of arches to be used for tunnels,…
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