ommon vise with parallel jaws. The surfaces in contact are so small that the pipe is often squeezed flat, some- what, before it will hold at all, and is always a source of annoyance. If a thread has to be cut on a large pipe, it is almost impossible to hold it without jam- act well. ming or… … train had been in the line, instead of DART’S COMBINATION-PIPE VISE. tain labor-saving machines. The two empty cars, no amount of money following extract from Mrs. Pringle’s letter will ex- ‘* An ounce of plain the kind of machinery wanted:— other, The Duke of Buckingham, the chairman, and…
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