LIGHT L0 COMOTIVES A W E X 0 / US / VE S P E O / A / TY, Outside Connected Mine Locomotive, 66 inches High, and 65 inches Wide - on 3 feet Gauge. NARROW GAUGE PASSEN- s With 6 wheel tender, GER, with 4 drivers and two wheel { With 4 wheel tei: 16 Cylinders. truck. U 8 x 16 Cylinders. NARROW GAUGE FREIGHT 12 x 16 Io x 16, 6 drivers, with or without truck; 3. l saddle or tender-tank. 11 x 16, 9 : X I4. SPECIAL ENGINES for R. sig, 12 x 18, I2 x 16, R. Construction and . Shifting, # 8 o' | 10 x 16, 9 x 16, Mills, Furnaces, Quarries, Lum-3 * : * : ) 9} x 14, 94 x 14, ber Roads, with Wooden or Iron | #.g5 | 84 x 16, 8 x 16, Rails, Contractors' Use, &c. U: © 3 J 8 x 14, 7 x 12, MINING ENGINES, s Outside connected as above, or inside connected, 9 x 12. Photograph and Price of Engine, to do the required work, furnished on application. Inquiry should state length of road, gauge, steepest and average grades, radii of curves and whether on grades, weight and kind of rail, and load to be hauled. PORTER, BELL & CO., PITTSBURGH, PENN’A. Works, 50th St. & A. V. R. R. Cffice, 5 Monongahesa House, DIAGRAM showing proportion between up to 150 feet per mile. Furnished by Porter, Bell & Co., Pittsburgh, Pa See opposite page. Eacample I.—What proportion of its load on level will engine haul on grade of 20 feet per mile? Look for 20 foot grade at top, follow down perpendicular line to curve, and for percentage look at left hand on horizontal line intersected by the curve. Answer.—50 per cent. Example II.-If an engine's maximum load on 20 foot grade is 200 tons, what is its capacity on 40 foot grade? The diagram gives engine on 20 foot grade 50 per cent. of its capacity on level. Then, 200 tons being 50 per cent., the maximum load on level is 400 tons. The percentage shown on 40 foot grade is 30, and 30 per cent. of 400 gives Answer, 120 tons. This Diagram supposes track to be straight and in 200d order; the load is to be started on grade; the level is supposed to be absolute, though 5 or 10 feet to the mile is as near a level as is often found in practice. Grades of 500 feet per mile can be overcome by engines working by adhesion alone on good T rail. Tenders must be reckoned as a part of the train, GEO. B. WALBRIDGE, 55 Chambers Street, New York. Nuts, Washers, Spikes, Şo - - Iron Ores. Chas. W. Matthews........ © e o g c e o e e o a 4 to e o e o to so o e o e is e s to s o o o Philadelphia, Pa............ See Page 38 Rhodes & Bradley................ & © to e & Chicago, Ill.................... 6 * 192 Iron Padlocks. . Romer & Co e Newark, N. J.................See Page 204 Ritchie & Son e “ ......... & g o & e o 'o do so to { { 44 Iron Paints. Jno. W. Masury & Son New York................. ....See Page 214 Iron—Pig. WHITEWASH. For Outside Wood Work. Slack 3% bushel of lime, add 2 lbs of white vitrol and water enough to bring to consistence of thick whitewash. This is white and may be colored by adding Ochre, umber, lamp black, etc. When lamp black is added to water colors it should first be dissolved in alcohol. For Stone or Brick Work, etc. Slack 34 bushel of lime, then fill the barrel two-thirds full of water and add 1 bushel of hydraulic cement, also 3 lbs, of white vitrol dissolved in water. Make about the thickness of paint and lay on with a whitewash brush. It may be improved by adding a peck of white sand before using. This Maixture may be Colored same as the preceeding one. For Inside Work. Whitewash for inside work shonld have no salt in it, for making it permanent use about a quart of thin glue water, or any good clear size, to a pailful of wash. NUMBER OF NAILS AND TACKS PER POUND. NAILS. e ize. e b. o: fi lo. h so TACKS. #voy * o Inçn. ... 4: “...” Title. Length. No. per lb. 4 “ ......- # * ...... 300 “ 1 oz. ......... *% inch. ......... 16,000 5 “ ...... 1% “ ...... 200 “ 1% “ ........ & “ ......... 10.666 6 * ..... ... 3" “ . To “ }%. o. so a . §oo 7 “ ...... 2% “ ...... 128 “ 2% “ ........ so % “. ......... 6,400 8 “ ...... 2% “ ...... 92 “ 8 “ ......... % “ ......... 5,333 9 * ...... 2% “ ...... 72 “ 4 “ ......... j. “ . 4,000 10 * ...... 3 “ ...... 60 “ 6 “ ......... % “ ......... ,666 12 “ ..... 3.4 ... ...... 44 “ 8 “ ......... % “ ......... 2,000 16 “ ...... 3% “ ...... 32 “ 10 “ ......... # “ ......... 1,600 20 * ...... 4 “ ...... 24 “ 12 “ ......... % “ ......... 1,333 30 “ ...... 4% “ ...... 18 “ 14 “ ......... # “ ......... 1,143 40 “ ...... #4 “. ...... 14 “ 16 “ ......... ; “ ......... 1,000 50 “ ...... 5% “ ...... 12 “ 18 “ ......... # “ . 888 60 “ ...... 6 “ ...... 10 “ 20 “ “. ......... 8()() 6 “ fence, 2 “. ...... 80 “ 22 “ ......... % “ ......... 727 8 “ $6 2% “ ...... 50 “ 24 “ ......... 1% “ * @ e o os e o so o 666 10 “ 66 3 “. ...... 34 “ 12 $6 66 3% Gé e e o 'o e o 29 66 PASTE, THAT WILL ADHERE TO ANY SUBSTANCE. Sugar of lead, 720 grs., and alum, 720 grs. ; both are dissolved in water. Take 2% ounces of gum arabic and dissolve in 2 quarts of warm water. Mix in a dish 1 pound of wheat flour with the gum water cold till in pasty consistence. Put the lish on the fire, pour into it the mixture of alum and sugar of lead. Shake well, and take it off the fire when it shows signs of ebulition. Let the whole cool, and ;he o: is made. If the paste is too thick, add to it some gum water, till in proper 29 nsistence. PRATT & Co., HARDw ARE. PROPRIETOIRS OF THE BUFFAL0 IRON AND NAIL WORKS, FLETCHER BLAST FURNACES, SPIKE, BOLT, MACHINE 3 FORGE SHOPS. ANUFACTURERS OF Rail, Bridge Boat Spikes, Railroad,” Contractors' Supplies, Russel L & ERWIN MANF"C CO., Locks of all Kinds= P R A TT & C O. , |