LAP WELDED AMERICAN CHARCOAL IRON BOILER TUBES. Ins. 1 11/ 14 11 134 2 4... 214 21 23 3 34. ... Ins. Ins. 3.142... 0.856... Ins. 2.689 0.072... 4.460.. 4.460.. 3.819 3.474... 0.072 ... 3.455 3.056 4.191... 0.083 ... 2.863 ... 2.547 4.901... 0.095 ... 2.448 ... 2.183 ... 5.667 0.098... 2.118... 1.909 ... 6.484... 0.098... 1.850 ... 1.693 7.172... 0.109 0.109... 1.673... 1.528 7.957 0.109 1.508... 1.390 8.743... 0.109 1.373 ... 1.273 9.462... 0.119 1.268... 1.175 7.125 8.296 3.958 1.091 ... 8.357 ... 9.621 1.018... 9.6 7... 11.045 0.955 ... 10.992 ... 12.566.. 0.849 14.126... 15.904 15.708... 4.72 14.818... 0.140 0.140... 0.809 0.764 17.497 19.635 ... 18.84)... 5.699... 17.904 0.151 0.670 0.637 25.509 28.274 21.991 ... 6.657... 2 .914... 0.172 0.574 0.545 34.8 5 38.484 12.435 25.132... 7.636... 23.989... 0.182... 0.500 ... 0.478 45.795 ... 50.265 15.109 28.274... 8.615... 27.055... 0.193... 0.444... 0.424... 58.291 ... 63.617 18.002 10 ̄ ̄ ... 31.416 9.573... 30.074... 0.214... 0.399 ... 0.382... 71.975 ... 78.540... 22.19 312... 10.995 JEWETT PURE RAW, BOILED AND REFINED. Factory, Port Richmond, Staten Island. JOHN JEWETT & SONS, Office, 182 Front St., NEW YORK. Whiting, 70 pounds; boiled oil, 30 pounds; water, 2 gallons. Mix. If too thin, add more whiting; if too thick, add more oil. TO SOFTEN PUTTY. To remove old putty from broken windows, dip a small brush in nitro-muriatic acid or caustic soda (concentrated lye), and with it annoint or paint over the dry putty that adheres to the broken glass and frames of your windows; after an hours interval, the putty will have become so soft as to be easily removable. Frederick Eckel, MANUFACTURER OF ENGINEERS' AND SURVEYORS' INSTRUMENTS, Transits, Levels, CHAINS, TAPES, RODS, &c. WARRANTED THE BEST QUALITY. INSTRUMENTS CAREFULLY REPAIRED and ADJUSTED 10 BURLING SLIP, COR. WATER ST., NEW YORK. JOHN BAYLISS, PATENT VERTICAL HOT BLAST and WATER TUYERES AND FORGES. Warranted to save 33% Coal, and same amount of Time; does not choke up or burn up. ALSO, MANUFACTURER OF CONTRACTORS' TOOLS AND RAILROAD SUPPLIES. SEND FOR CATALOGUE Copper Wire. Ansonia Brass & Copper Co................ ....New York..... ...See Page 122 44 New York...... New York.. Cotter Drills. ..Philadelphia, Pa............See Page 64 Cotton Waste. Radley & McAlister Manufacturing Co....... T. B. Bickerton & Co...... A. Fulton's Son & Co........ ..Chicago, Ill. .See Page 124 .Philadelphia, Pa...... SURFACE HARDENING OF CAST-IRON. The wearing of cast-iron surfaces exposed to sliding friction can be almost wholly prevented by tempering the surface with a mixture of 21 1-10 pints of water, 3034 pounds of sulphuric acid, and 1,003 grains of nitric acid. The article should be heated to a cherry-red, and protected from the oxidizing effect of currents of air by a sheet-iron box. The process is especially adapted to the hardening of bearings of axles. which, while much cheaper than those of the usual alloy, will, when regularly ubricated, last as long, even when there is great rapidity of motion. These weights include laps for riveting and calking, but not the rivets, the weight of which depends upon the sizes and number used. |