.. Handy notes and queries . TRADEMARK REGISTERED— Is the recognized STANDARD ELBOW IN THE Write for Prices and Discounts to LOCK SEAH ELBOW HAIUFG €©., INDIANAPOLIS, IND. SOLE MFRS. HOPKINS HANDY NOTES AND QUERIES. Wires of Various Metals Compared. The following table is given by Mr. David Kirkaldy, of London, to exhibitthe tensile strength and resistance to tension of wiie made of various ma-terials. Pulling Stress square inch Specimens Tested. Hard. Pounds. Copper 13° 141 Brass 51 550 Charcoal
.. Handy notes and queries . TRADEMARK REGISTERED— Is the recognized STANDARD ELBOW IN THE Write for Prices and Discounts to LOCK SEAH ELBOW HAIUFG €©., INDIANAPOLIS, IND. SOLE MFRS. HOPKINS HANDY NOTES AND QUERIES. Wires of Various Metals Compared. The following table is given by Mr. David Kirkaldy, of London, to exhibitthe tensile strength and resistance to tension of wiie made of various ma-terials. Pulling Stress square inch Specimens Tested. Hard. Pounds. Copper 13° 141 Brass 51 550 Charcoal Iron 46. 60 Coke Iron Steel Phosphor Bronze, No. 1 • « •« 44 Specimens Tested. Copper Brass Charco Coke Iron Steel Phosphor Bronze, No. 1. No. 2. No. 3. 44 No. 4. Extension per cent. Annealed. Hard. 28. 17. No. twistsin 5 inches. Annealed. 9657 874479666053124 Of the eight pieces of steel tested three stood from 4j to 45 twists, a^4Ave stood from 1}4 to 4
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Keywords: ., bookcentury1800, bookdecade18, booksubjectmetalwork, bookyear1887
