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  • TABLE DES MATIÈRES
  • TABLE DES ILLUSTRATIONS
  • RECHERCHE DANS LE DOCUMENT
  • TEXTE OCÉRISÉ
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  • PAGE DE TITRE
    • Tne National Gas Engine Company, Limited (p.3)
    • Introduction (p.4)
    • Showrooms and Depots (p.6)
      • Standad Engines for Small-Power Users (p.9)
    • National Gas Engines (p.10)
      • Special Features of Standard Engines, 2 H.P. to 7 H.P (p.11)
        • Governors (p.11)
        • Ignition Arrangements (p.11)
        • Loose Cylinder-Liner (p.11)
        • Valves (p.11)
        • Forged-Steel Crank Shafts (p.11)
        • The Starting Arrangements (p.11)
        • Perfect Self-Lubrification (p.11)
    • Particulars of Standard Engines (p.13)
    • Standard Single-Cylinder Horizontal Engines (p.15)
    • Specification of standard Single-Cylinder Gas Engines (p.17)
      • General Description (p.17)
      • Cylinder (p.17)
      • Bed (p.17)
      • Air and Gas Valves (p.19)
      • Valves and Valve Gear (p.21)
      • Crank Shaft (p.21)
      • Gear Wheels and Side Shaft (p.21)
      • Crank-Pin Lubricator (p.21)
      • Connecting Rod (p.23)
        • Electric Ignition (p.23)
        • Tube Ignition (p.23)
        • Governing Gear (p.23)
      • Piston (p.25)
        • Lubricating Pump for Connecting Rod and Cylinder (p.26)
        • Air and Exhaust Silencers (p.26)
      • Starting Arrangements (p.27)
        • Tests (p.29)
    • Specification of 95 Horse-Power Gas Engine (p.32)
      • Air and Gas Valve and Cylinder Jacket (p.32)
      • Valve-Spindle Guides (p.32)
      • Side-Shaft Bearings (p.32)
      • Governing Gear (p.34)
    • Standard Normal Engines, fitted with Two Fly-wheels (p.41)
    • Standard Normal Engines, fitted with One Fly-wheels (p.43)
    • Particulars of Engines for Electric Driving (p.45)
      • Thousands of National Engines are use in:- (p.46)
      • In Electrical Work they are extensively used for: - (p.46)
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  • PAGE DE TITRE
    • Viex of Wellington works and head offices of the National Gas Engine Co., LTD. (p.2)
    • Types of standard national engines (p.7)
      • Standard 2 – Wheel Engine, 20 to 50 B.H.P (p.7)
      • Standard Mill Engine, 300 B.H.P (p.7)
      • Six – cylinder Engine. New design (p.7)
      • Standard Mill Engine, 150 B.H.P (p.7)
      • Large Vertical Engine, 300 to 1500 B.H.P (p.7)
    • Interior View of one of 20 Bays in our works devoted exclusively to the manufacture of National Gas Engines (p.8)
    • View of 4 Effective H.P. Gas Engine (p.12)
    • Standard Design of 6 to 10 Effective H.P. Gas Engine (p.14)
    • Standard Industrial design 18 Effective H.P (p.16)
    • Core-making Department in Foundry (p.18)
    • A testing Bay where all Engines are thoroughly tested before dispatch (p.20)
    • Standard Design of 36 Effective H.P. Engine for Electric Light purpose (p.22)
    • One of our Machine Shops where National Engines are manufactured on the most modern methods (p.28)
    • Standard Design of 20 to 40 Effective H.P. Gas Engine for Industrial Purpose (p.30)
    • Standard Design of 20 Effective H.P. Electric Light Engine (p.31)
    • Standard Design of 95 Effective H.P. Electric Light Engine (p.33)
    • Typical indicator diagrams (p.35)
      • Full load (p.35)
      • Light load (p.35)
      • Variable load (p.35)
      • Light spring Card (p.35)
    • Wellington works, Ashton – under – lyne (p.36)
      • Drawing office (p.36)
      • Pattern shop (p.36)
      • Brass foundry (p.37)
      • Brass – Finishing Department (p.37)
      • Heavy Turning Shop where Fly – Wheels and other heavy parts are machined by powerful Turning Mills (p.38)
      • Part of Foundry and Moulding Shop where all Castings for National Engines are produced (p.39)
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Particulars of Engines for Electric Driving

and for Factory Driving, where Steady Turning is specially required. (see figures 5, 6 and 7.)





PRINCIPAL OVERALL DIMENSIONS.

Approx.

Weights.

III CL > |_ PQ 03 S g 1 S£ i 02 2 i w a C 'H Belt Pulley. Fly Wheel. 1 Engine j Only. j Concrete Foundation. <D a 'So . c >> 111 r3 rQ Code Word ui d. >

J§ m Dia. A Width ! B C D Dia width E F i G H 1 J K ‘ R j Length 1 Width G+ Hi J + K Length 1 L i Depth m : Width N w-a ^ ° 4) fl £ h j 1 â– 

B.H.P. j 1 I 1 £

In. In. Ft. In. In. Ft. In.j In Ft. In. In. Ft. In. In. ! Ft. In. Ft. In. Ft In. Ft In. Ft. In. Ft. : In. Cwts Cwts Cwts.

ME 10 j 280 ' 18 6 1 9 12 5 3* 7i 4 11 12 2 9 13 | 2 3f 5 11 3 10 6 6 2 9 4 3 15 18 14 Elongate ME

OE 14 260 24 10 1 11 13* 5 11 n 5 8 i 14 3 6* 15 i 2 9* 6 10 4 8* 7 9 3 4* 5 3 22 27 21 Elucidate OE !

PE 18 250 i 24 10 2 0 14 6 2 10 6 2 15 3 7 • 15 ; 2 10| 7 5 4 10 8 3 3 4* 5 4* 34 39 25* Elegance PE

RE 26 250 : 30 ! 12 2 15 6 4* 10 6 10 16 4 1* 18 3 S§ ; s 2 5 7* 9 0 3 10* 6 3 40 47 33 Elegantly RE

SE 34 250 30 12 2 Si 16 G 6f 10 7 1 i 17 4 3 18 1 3 5* 8 6 5 9 9 3 3 10* 6 6 48 55 40 Element SE

TE 44 240 40 12 1 2 8 17 7 6.1 12 j 7 9 ! 18* 4 6* : 20*; 3 9§ . 9 3* 6 3 10 3 4 6 7 0 60 69 44 Elevate TE

VE 50 230 40 ! 14 i 2 8* 18 7 8 I 12 ! 8 2 ; 19*1 4 10 20*' 3 11* 9 9* 6 6* i11 0 4 6 1 t \ 3 72 82 50 Elevator I VE 1

WE I 60 230 1 54 1 14 2 8* 18 7 10 12 8 7*; 19* i 4 10 ! 21 ! 3 11*10 O 6 7 I11 0 5 0 7 6 90 102 I 58 Elevation WE

XE 75 230 1 54 16 S 3 21 19 8 1*| 14J 8 10* 21 5 7* m 23* ; 4 81 10 7* 7 7 in 6 5 0 1 8 0 105 118 83 Eligible ! XE

XAE 95 210 60 20 ; 3 8 16* 8 4| 18f 9 5* 24 j 6 6 29 ! 5 2 11 5* i 8 11 13 0 5 6 | 9 6 145 160 111 Elicit XAE 1

All the foregoing engines have girder beds, supported cylinders, and generally they embody our very latest improvements.

They are fitted with extra heavy fly-wheels, giving a degree of regularity of rotation which makes the engines quite suitable for the steady driving of dynamos. They will drive direct-current dynamos in parallel without any difficulty whatever.

Balance weights are fitted to all crank shafts, and wrought-iron splasher guards are likewise provided.

No pulleys are included with electric engines.

The powers given are maximum at the standard speeds, and due allowance should be made between this maximum and the constant working load which the engine has ordinarily to meet so as to ensure a suitable reserve of power.

So far as power developed and good general working are concerned, it is assumed that the local conditions are not unusual. The gas supplied to the engine should in all cases be plentiful and good. 1 There should also be a plentiful supply of water for the cylinder jacket.

Where gas engines work at a considerable elevation above sea level, their power is reduced about 5% for every 1,000 feet.

45




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