il sketch of atweer which we have been using in our water-wheelworks for the past year. I send it to you for thebenefit of your readers who use such things. We have been much perplexed in trying to keepour fires clean while making large welds, especiallythose on which we had to sand in the lire.… … thoroughly and find no fault in it. Appended is adescription of ij. The cylinyer, A, is six inches diameter inside, and17 inches deep. B is a rod running up through thecenter, carrying a cone-shaped head, D, on the top.The cap plate has a beveled hole, C, in the center, toreceive a cone, D, when…
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