Š ENGINEERING 77 N. //WS7RUME/W7 MA/WUFACTURERS, No. 43 North Seventh St., PHILADELPHIA.

IMPROVED TRANSITS and LEWELS, TAPES, CHAINS, IRAUGHTING INSTRUMENTS, STATIONERY, all supplies for Field and Office.

EVERY DESCRIPTION

, , O rat. INTERNAL 2.%. & Of cLAMP couplino No. 3 &2 IF I XT U R. E. S - <z 3 © 4. used in PAT. VISE couplincs N '62 TRANSMISSION

SHAFT INC 2 Of Steam Powers From 4% to 5}; in. DIAM. o,”& Pat. Inn proved 2. So loose conians. Fast collans N 3, "o, © Ball and Socket Z --> Adjustable STEEL SHAFTINC made to order & - H • 2 angers.

LARGE STOCK of FINISHED PULLEYs always on hand.

Journal Bearings.

G. W. W. Stevens & Co.................................. New York..................... See Page 8
John Harden................................................ {{ “ .......... e e o is to e o e o e e * * 230
- Knife Corinders.
D. Brewer & Co............................................. Philadelphia, Pa............. See Page 246
& - Lace Leather.
Bickford, Curtiss & Deming........................... Buffalo, N. Y.................. See Page 136
N. H. Gardner & Go . “ “ .................. “ 254
- Ladles.
Wm. B. Bement & Son.................................... Philadelphia, Pa............. See Page 168
Lag Screws.
Lewis Oliver & Phillips; H. B. Newhall, Agt...New York..................... See Page 166
Pittsburgh Bolt Co....................................... Pittsburgh, N. Y............ € $ I 18
Providence Tool Co.; H. B. Newhall, Agent.... New York..................... {{ I66
Lannp Posts.
Morris, Tasker & Co * Philadelphia, Pa............. See Page 36

R. A. Brick & Co * New York..................... { % 48

MEMORANDA. ON ENGLISH RAILWAYS-CONTINUED.

Requirements.
Joints of rails to be fished.
Chairs to be secured by iron spikes.
Fang bolts to be used at the joints of flat-bottomed rails.

Stations.

Ends of platforms to be ramped (not stepped).
Signals and distant signals in both directions.
Signals to be weighted to fly to “danger” if wire breaks.
Switch handles to be brought together.

§ { not to be worked between lines of rail. ' Facing points to be avoided

* { where unavoidable, to be furnished with self-acting signal. Sidings to be supplied with locked chock-block. Sidings on a gradient falling towards the line to be provided with a blind siding. Turn-tables to be a safe distance from adjacent lines. Platforms of bridges protected from fire. Walls and handrails to be provided on viaducts at stations. . Level crossing gates to be capable of being closed across both road and railway. Clocks visible at all stations. Mile posts and gradient boards. Tunnels and dangerous places protected by telegraph.

RECIPES FOR SEA LING WAX.

. Red Brown
Shellac..................... 4 ounces. Shellac ................... 7% ounces.
Venice turpentine ..... 1% 66 Venice turpentine..... 4 “
Wermllion................ 3 &e Brown ochre............ l &{
Vermilion................ 3% “
Black
Shellac................• * * * * * * * 60 parts. e Blue.
Fine ivory black.......... 30 “ Fine shellac. ...... * & e o e g & 7 ounces.
Well.ce turpentine........ 30 “ Venice turpentine...... 3 “
Resin. ..................... 1 “
Yellow. Mineral Blue ............ 1. “
}llac.................... .4 ounces. - -
io to Gre???
Venice turpentine..... 2 {{ Shellac ............“....... 4 ounces.
Sulphuret of arsenic... 34 {{ . Venice turpentine..... 2 6 &
- Resin ....................... 1% {{
Sulphuret of arsenic... 34 “
Mineral blue ............ 3% 4&

Melt the shellac at the lowest necessary temperature; stir the turpentine previously warmed; and then add the colors, and pour into moulds

Frogs, Switches, Steel Scrapers, Cold Chisels,
Claw and Tamping Bars, Spike Mauls,

- Larmps. Ansonia Brass & Copper Co......... $ 4 & © to $ to e o e o e o 'o e s s o New York..................... See Page 122 Buffalo Steam Gauge Co................................. Buffalo, N. Y.................. & 6 170 J. G. Knapp Manufacturing Co............. & e o e g o s & s is New York..................... {{ I6 L. G. Tillotson & Co....................................... 6% “. ..................... {{ 94 S. M. Aikman & Co........................ * * * * * * * * > e o e o to e o & 6 “ ..................... & 4 114 Wose, Dinsmore & Co............. * * * * * * * * * * * * * * * * * * * * * * * * & & “. ..................... $4 60 Lanterns. Buffalo Steam Gauge-C ................................. Buffalo, N. Y.................. See Page 170 L. G. Tillotson & Co....................................... New York..................... { % 94. Parmelee & Bonnell...................................... Buffalo, N. Y.................. { % 202 Orrin L. Gridley............................................ & 6 “ .................. { % 196 Radley & McAlister Manufacturing Co........... New York..................... {{ 250 S. M. Aikman & Co............................. - e o so e e o 'o to a {{ “ ..................... € $ 114 T. B. Bickerton & Co .Philadelphia, Pa............. & 4 138 Vose, Dinsmore & Co..................................... New York..................... {{ (30 STANDARD SIZES OF NUTS. SQUARE NUTS. e HEXAGON NUTS. & width. Thickness. Hole. ..." width. Thickness. Hole. *...* Žá "... #4 ... % & ...... % ...... 11–29 ...... % § g to e e s & * to e o e o o § * : : & e o so e o * ... % e o e o e e %3 • . . . . . %3 || 1 - - - - - - 2 - - - - - - 16 . . . . . . . 2 % . * to e o e o go : 1% ...... % ...... % ...... à % ...... % ...... % 1% ...... % ...... % ...... 33 i. to e o os o go % “... % 1% ...... % ...... # ... # 1. % * * * * * * #% to to e o 'o e % 1% e e o os e e % to e o go to o g ... % #3 "... #3 "... #3 oš “... % ...... # * e e g o e % #4 go o e o G & 38 to e e o e g ZS 1% fe & © e o 'o 1. e & © g o o iš ... “ % #3 to e o is to o % % | 1.4 ...... 1 ...... 29–32 1. #3 ... * ... ; 1% ...... 1% ...... 29–32 ...... h 143 “” 8 - - - - - - § 2 ...... # “... }, ..." I § I § •: . . . . 1% e e s to $ to 1% % # * * * * * }: & e o os o o } § e to e s p & } § : * ... o I % ... iś . ; o: § & © e g o to 1% ...... 1% | 3 | ...... 1% ...... 1% ...... 1% #4 o e o e o 'o 1% ...... 1% 3% ...... 1% ...... 1% ...... 1% #4 ...... 1% ...... is 35% ... 2 ...... # & e e s st 1% o to e o 'o & to # & e o e o so # 3% 2 ...... 14: ...... 2 *d 24 • - - - - - 8 - - - - - - 8 3 ...... 1% ...... 11 #4 ... : ... # % ...... 1% ...... 1% § . iž . is: 4 ...... 2 ...... 2 NUMBER OF NUTS OF EACH SIZE TO 100 POUNDS. COLD PUNCHED NUTS. HOT PRESSED NUTS. Square Hexagon Square Hexagon %-in. ............ 1945 ............ 301() o; in to to e o is e o q & © to e 109.9 ............ *::: % “ ............ 810 ............ 810 % “ ............ 540 ............ 645 § ‘. ............ 425 ...---..... 450 % “ ............ 370 ............ 420 % “ ............ 243 ............ 965 % “ ............ 225 ............ 253 % “ ............ 166 ............ 160 I “ ............ 145 ............ 165 ; “ ............ 110 ........... 105 || 1% “ ............ 95 ............ 115 1% “ ............ 80 ............ 80 1% “ ............ o to e o 'o e o so o go & o o 83 1% “ ............ 67 ............ 60 1% “ ............ 43 ............ 50 1% “ ............ 32 ............ 30 STANDARD LIGHT SIZES, HOT PRESSED, SQUARE AND HEXAGON NUTS. Short * Size of Short e Size of Diam. Thickness. Hole. Bolt. Diam. Thickness. Hole. Bolt. § to s e o e e # © to e e o 'o 2-34 * * * * * * # }% to o e o o is * • * * * * * * s e s ∈ $ $ 1% s to e o o & 6 to g & e o e # to e o e o o 6 3. * & e g g to * to $ to e & 8 to to e o to to e to t e o o Aoto o so e o 'o e © ...... * 2 ...... 1% ...... I ...... 1% o to a c e s a § to $ & & e e ; to o o o & c. % 2% ...... # & e o so e & } : : § 1% ...... % ...... 6 * * * * * * % 2% ...... 1% ...... 1 7–32 ......' 1 is . % ...... 21–32 ...... % 2% . #: & o go © to o 1 % ...... 1%

L. P. WOODWORTH, J. D. PAYNE, Superintendent. Soc'y and Treas.

One steamer, fitted for Horses, Prince's Metal Jacket, very powerful and highly finished.

One Steamer, fitted for Horses, Sheet Iron Jacket.
One Single Pump Steamer, drawn by Hand, Sheet Iron Jacket.

to All built by The Allerton Iron Works Manufacturing Co., and will be sold at very low prices.

ADDRESS GEORGE M. ALLERTON,
205 BROADWAY, New York.