ing iron. whether or no gas is present. The test holes should be The vase shown in Fig. 4 is formed of four embossed foundation, and a piece of very thin soft copper or placed about six feet apart, and should not reach be- brass is secured to the block so as to cover the lace, as low the line of… … close-grained, soft wood for lead work ; but for brass Fig. 7.-W0QDEN TOOLS FOR REPOUSSE. Fig. 4.-VASE FORMED OF EMBOSSED PLATES. or copper, the wood should be hard. To the frame, A, is attached the plate of metal by means of screws. street, so that the gas in the ground has a direct and The board,…
Asks · Patents · Adapted · Munn · Scientific American · Iron · Cartridge case · Waste pipe · Horse power · Slag escape · Multiple switch · Inches long · Steam engine · Electric light · Switch board
Internet Archive · Public domain (published before 1931). Free to use for anything.
![An illustration from [Catalogue of 19th century British plated and unplated art metal-work]. (1880)](https://img.insideoutlibrary.com/img/200/met-p16028coll13_2388-13-1.webp)