Rathbun Gas

THE RATHBUN-JONES ENGINEERING CO., TOLEDO, OHIO, U. S. A.

Form 67 FRAME DandE

FRAME F, G, Hand J

FRAME Kand L ATHBUN Gas Engines are built with two, three and four R cylinders and in · some cases for particular purposes with six and eight cylinders. This make of has been on the market for nearly twenty years and the many advantages of its design and construction have been thoroughly demonstrated.

Our standard design provides an extended shaft and outboard bear­ ing. The drive may then be either by belt from the flywheel, or from a pulley that would be mounted on the extended shaft between the flywheel and outboard bearing, or an engine type generator may be mounted on the extended shaft.

These engines are conservatively rated, being provided with suffi­ cient capacity to assure the delivery of their full rated H. P. continuously.

Gas of practically any heat value may be used, the compression being made to suit. The heat value of the gas, however, should be maintained as nearly uniform as possible and of value for which the engine is designed; variations of over 1 5 % are quite undesirable.

Rathbun Gas Engines are guaranteed to produce one horse­ hour for each 9,000 to 10,000 B. T. U. supplied in gas to engine, depending on the kind of gas used.

Less than one gallon of lubricating oil will be required for the en­ tire lubrication of an engine for 1,500 H. P. hours. •

With temperature of supply water 7 5 degrees F. and discharge 130 degrees F., about 7 .5 gallons of cooling water will be required per H. P. hour. SOME GOOD POINTS about the RATHBUN GAS ENGINE

Roller Path Motion

Valves in Cylinder Head Ground Joints at Valve Cages. ------Cylinder Head and Igniter

Compensating Mixing Valve

Dead Air Space in Head of Piato Solid Stra1>-End on Rod

Heat Treated

Front of -case Removable

Wedg:e Adjustment of Rod Boxea

Working Parts Enclosed

Valves Operated by Eccentrics

Steel Stay-bolts

Larlfe Openings in Crank-case Wedge Adjustment of Main Journals ..t

Rigid Base Conatruction Large Bearing Surface on Foundation General Description of Apparatus as Usually Offered The Rathbun Gas Engine is of the vertical mul ti ple cylinder four-cycle type consisting principally of a base and housing, cylinders, cylinder heads and manifolds. The Base is of cast-iron and contains the main journals and crank-shaft and acts as a reservoir for the lubricating oil. The Housing is of cast iron, reinforced by steel columns so placed as to carry directly to the main journals the stress due to the thrust. In one side of the housing is mounted the eccentric shaft with its accompanying valve operating mechanism, all of which is enclosed by a cast-iron cover. In the housing opposite each connecting rod is located a large door, making parts within the housing readily accessible. The Cylinders are simple castings of close-grained iron with provision for reboring. They are bolted sepa­ rately to the housing and are provided with ample openings through which the water jackets may be cleaned. The Cylinder Heads are mounted on the cylinders and are held in place by eight steel studs. The heads con­ [ tain the exhaust and admission valves, air starting valves and igniters. The Admission Manifold carries the valve a:id connects the cylinder heads together on one side, on the other side the Exhaust Manifold leads the exhaust from each head into the exhaust pipe. The Flywheel is cast" with a solid rim and split hub, the hub being sufficiently long to act as a coupling between the standard engine shaft and the extended portion which may be of such size and length as required. In large sizes and for special purposes split flywheels are used. Water and oil joints have gaskets but all others are made metal to metal. Operating Features Adjustments and Provision Against Wear Rollers, Pins and Cams are hardened and ground. The Main Journals and Connecting Rod Boxes take up by means of wedges. All Journals are lined with best grade of babbitt, except Cross Head Boxes which are of hard bronze turning on hardened and ground steel pins. Admission and Exhaust Valves are operated by eccentrics and roller-path levers. Starting Compressed air at about 200 pounds pressure is admitted to each cylinder on its working , none of the pr"ncipal operating mechanism being disturbed. Governing A Centrifugal is located within the engine housing and acts directly on a simple, balanced disc throttle-valve which controls the quantity of mixture in proportion to the load. The gas supply may be sep­ arately controlled when necessary and maintains automatically the best operating mixture under varying load conditions. The timing of the ignition may be automatically advanced by the governor on loads and can also be controlled by hand. An adjustment is provided for changing the engine speed while running. Lubrication The engine base acts as an oil reservoir, the level of the oil being maintained constant by an overflow. A pump driven by the engine returns the oil through sight feed lubricators on the main journals. Splashers on the ends of the connecting rods dip into the oil, throwing it into the cylinders and other working parts within the housing. ' Ignition Make and break igniters are used, current beini supplied by a storage battery. The batteries are charged from 125 to 250 volt circuits or a small magneto is supplied when no other source of direct current is available. The timing of the ignition may be changed while running. Regular Equipment Unless Otherwise Specified Each engine is provided with a platform arranged for conveniently handling the exterior mechanism of the If engine; an induction coil for each cylinder; one ignition cut-off switch; one graduated air valve; one graduated gas valve; one globe valve for controlling the· compressed air at the engine; an extended shaft and outboard bearing; exhaust muffler; wrenches and special tools; air tank; stand for turning engine by hand; storage battery. Station Auxiliaries It is necessary that the customer be provided with a small air compressor for 200 pounds intermittent service, and some means for driving it. We also recommend a lubricating oil filter, a cabinet for the storage battery and an igmt10n switchboard. The cost of the auxiliaries varies somewhat with the size of the plant. We make separate quotations on Station Auxiliaries for use with our engines. When Ordering or Asking for Prices Give as much information regarding the load conditions as possible, particularly the maximum and average loads that the engine will be expected to handle. If to drive a generator give size, voltage, cycles, etc., and if parallel operation with other units is required. When ordering generators for direct connection specify "engine type without shaft base or bearings but including sole plates and pressing on of rotor." Dampening device should be provided in alternators for parallel operation. If engine is to be installed considerably above sea level we should know the approximate altitude. About 3 per cent of effective horse-power is lost for each 1,000 feet of rise. Let us know the kind of gas it is expected to use, and its heat value. It sometimes happens that the water for cooling the engine will leave objectionable deposits in the engme jackets -if the water is bad advise us fully. We include with each engine only a few spare parts, namely,-an extra igniter for each cylinder; one extra exhaust valve and cage complete; one set of rings for one . If additional spares are required they should be specified or the amount in money purcha'ser desires to invest in such parts should be given. Sizes, Weights, Dimensions

Frame B c D F F G H H I J J K K L - 7S 7S I IS ISO 160 - 190 22S -- ~ ------ and Stroke ll V2 xl6 103/.i x 13 12 3/.i x IS ISxlS ISx l6V2 l6V2 x IE 17 V2x. 17 17 V2 x 19 20x20 21 x 20 20x22 21x22 21 V2 x24 ~ ------· ---1--- ~ .....~ Gas Connection 4" 3V2" 3 V2 " 4" 4V2" S" S" S" 6" 6" 6" 6" 6" "' Brake Horse-Power - 100 --8S ISO ---17S 190 22S -2SO -300 -3SO 37S - --soo 67S c:> - "' ------·------Bore and Stroke l IV2x It 10% xl3 123/.ix IS 14xlS 14x l6 V2 1Sxl6 16xl7 l6 V2 x1 9 18 V2 x20 20x20 20x22 20x24 ~ ---- -:;; ------z: Gas Connection I V2 " 114 " I V2 ' 2• 2" 2V2 " 2 V2 2 V2 " 3" 3" 3" 3% " Number of Cylinders - 2 - 3 - 3 - 3 - 3 - 3 - 3 - 3 - 3 - 3 - 4 - 4 - 4 ------Revolutions per Minute 300 300 300 277 2S7 2S7 2S7 2S7 22S 22S 200 200 200 ------Shipping Weight, Lbs. 18,000 12,000 26,000 37,000 39,000 4S,OOO 48,000 S0,000 70,000 72,000 9S,000 100,000 12S,OOO ------8.-1-,-0.- Exhaust Connection s• S" s• 6" 6" 7" 7• 7" 8" 8" 8"

The two-cylinder engine on Frame B differs somewhat in design from the three- and four-cylinder . Frame L ?as water-cooled pistons. Engines are rated for 600 feet elevation. All three-cylinder engines may be arranged to turn in either direction but the four-cylinder machines tum only counter-clockwise when facing engine at the flywheel end.

... Direct Connected Belled Pulley Belted Fly-Wh eel E C D E F G H K L M N 0 p Q ~ A B A B A I B

c IOI 4" llf o• 81 4" 81 9' 71 6" 8£ o• 8£ 6' ------60" 10" ---;;-;-;-;~~ ! ~~~ ------1-- D ~~~~~ 12£0' 111 6' 41 6" 316" 31 7• 70" IS" 23" 41 o• 61 10" 41 6 ' 181 9 " 7£ O" SI O' E 141 6" 161 o• 13£ 6' 1s1 o• 1216• 1 14£ o• 121 o• 418" 31 8' 31 10• 70' 16 i " 2S" 31 3" 8£ 2" 41 10 ' 9£ 3 ' 6£ 6 " Sf 6 ' F 1s£ o• 16£ 6" 14£ o• 1s£ 6' 1216" 141 o• 1216• s1 s• 61 o• 41 o• 72• 19i " 2S" 31 4" 81 2" 41 6 " 91 6 " 71 O" SI o'

~ 1610' \ '716" ISIO' 1616' 1416' 1610' 1310" 610' 61 4' 41 2" 82" 19" 21 2" 31 9" 91 2" Sf O" IOI 4 ' 9£ O" SI 6 "

H 1810" 1910' 1616" 18£0" ISl6" 17101 1310" 610' 61 4' 41 2" 82" 22' 21 21 31 9" 91 2' Sf O" _1 101 9 " 91 O" SI 6 '

J 201 o• 221 o• 181 o• 201 o• 171 o• 191 o• 141 o• 61 10• 71 6" s1 o• 87' 30' 21 S" 41 I' I If 0" 61 O" 121 3" IOI O" 61 O"

K 221 9• 26£ o• 221 o• 2s1 o• 211 6" 241 6" 141 o• 61 10• 71 6" 8£ 6" 87" 30" 21 S" 41 I' 131 6" 61 O" 121 3" IOf 0 " 61 O"

L 241 10•l 281 o• 241 o• 26£ 6" 231 o; 2s1 o• ~ ~ - 71 10• ~ 100• --;;---;;-~ 141 4' ~1 141 3 " ~--;;- ---~-----~----~--~-~--~-~--~ MINIMUM HEAD ROOM ----r

() 0

;

FLOOR LINE

FLOOR LINE

i.-- -li---nf- B ., I',- p 1:11 1•1 Frame D and E ~ ~j & l; ~1 ~ 1 ~ '~.t:L.£.-'/J

+----- E -----! 1.-- F ______, I ' I I ---- -1 I I () I I EX H. I

FLOOR LIN E

Frame F G, HandJ C!J I

f'l'-~ ------M~N~TrOM

0 -----1

... Cl J Frame Kand L

//////(////_

I I I l ---.______--

Rathbun Gas · Engines Quiet Economical Reliable

OPERATE ON Natural, Producer, Illuminating or By-product Gases

Built in 2, 3, 4, 6 or 8 cylinders 50 to 1000 Horse-Power

THE FRANKLIN, TOLEDO