...Chicago, Ill....... Car Boxes. New York........ .See Page 20 Wason Manufacturing Co................ ..Philadelphia, Pa............See Page 134 Car Builders. The McNairy & Claflen Manufacturing Co......Cleveland, Ohio........ .Erie, Pa...... .See Page 188 GREENE & RANDOLPH, Nos. 40 & 42 BROADWAY, NEW YORK. RAILWAY SUPPLIES, OF ALL KINDS. English and American Iron and Steel Rails, LOCOMOTIVES, PASSENGER CARS, FREIGHT CARS, Steel and Rubber Springs, WHEELS, AXLES, CAR IRONS, BRIDGE IRONS, BOLTS, NUTS, RODS, SPIKES, FISH PLATES, Track Supplies, Contractors' Material, &c, &c., &c., &c Everything Necessary to Maintain and Operate Railways. HOLLOW CAST IRON COLUMNS (CYLINDRICAL). Breaking Weight in Tons. This is a comparative table of Breaking Weights; the columns headed H. as given by Hurst, and the columns headed T. as given by by Trautwine. Trautwine's figures are qualified by many explanations and remarks on the different qualities of iron and the various tests and experiments on which the rules, by which the following figures were made, are based. The table will serve to show the great difference of opinion, and results, which skilled men and minds will entertain on the same subject. Diam. coco Ext'rn'l] Thick. H. 8 Feet. Length of Column in Feet. H. 16 Feet. T. 31 59 72 51 55 36 22 27 32 35 36 44 48 ... 38 48 55 71 17 67 54 ... 5 5 5 161 188 236 127 91 81 70 153 187 218 276 190 232 34 272 345 269 316 403 7 7 307 361 462 196 156 255 184 ... IMPROVED AIR BRAKE,. MANUFACTURED BY THE Ward Air Brake Co. OF KALAMAZOO, MICHIGAN. CHARTERED BY THE STATE OF MICHIGAN, FEBRUARY, 1872. A trial of the Ward Air Brake for more than one year has fully demonstrated it to be the CHEAPEST, SIMPLEST and most effective Air Brake now in use. It has much fewer parts, a more speedy release, and costs nearly one-half less than other Air Brakes. Has been in constant use for over one year, and is most highly recommended by prominent railroad men. A trial train equipped upon any road, to be paid for only when found satisfactory. Full particulars and terms furnished upon application.. PUMPS, WITH PIPE, HOSE, &c. WEST'S COPPER, OTIS' AND OTHER Lightning Rods, WEATHER VANES, CRESTINGS, &c. Car Hassocks. Geo. Drake Smith.. New York Ottoman & Hassock Co..............................................New York.. .Philadelphia, Pa.............See Page 246 66 236 CAPACITY OF CISTERN, IN GALLONS, FOR EACH FOOT IN DEPTH. CEMENT TO RESIST FIRE AND WATER, AND HARDEN QUICKLY. Two parts finely sifted unoxodized iron filiugs. Ono part, perfectly dry, finely powdered loam. Knead the mixture with strong vinegar into a homogeneous plastic mass, to be used as soon as made. CEMENT FOR STOPPING JOINTS, ETC. White lead in oil, mixed with enough white sand to make a stiff paste. This grows hard by exposure, aud resists heat, cold and water. |