LIST OF ILLUSTRATIONS 



Page 

 Fig. 1 Left Side Elevation of Case Traction Engine .......... 8 



2 Top or Plan View of Case Traction Engine ............ 14 



3 Lime in Peed Pipe Nipple ............................. 16 



4 Sectional View of Injector ............................ 22 



" 5 Sectional View of Marsh Pump ....................... 25 



6 Section of Check-Valve ............................... 28 



7 Sectional View of Cast Shell Heater .................. 30 



8 Sectional View of Steel Shell Heater ................. 31 



9 Sectional View of Fire Box for Burning- Straw ....... 36 



10 Sectional View of Fire Box for Burning Oil .......... 38 



11 Sectional View of "Ideal" Cup ........................ 46 



12 Oil Pump Attached ................................... 47 



13 "Swift" Lubricator ................................... 48 



14 The Connecting-Rod .................................. 61 



15 The Cross-Head .......... ............................ 53 



16 Board used in Babbitting Cannon Bearing ............. 56 



17 Cannon Bearing in Position for Babbitting ............ 57 



18 Side Elevation of Engine Proper ....................... 65 



19 Sectional View of Simple Cylinder ..................... 66 



20 Governor for Engine .................................. 72 



21 Section of Governor Valve ............................ 74 



22 Engine Belted to Prony Brake ........................ 79 



23 Prony Brake .......................................... 80 



24 Sectional View of Woolf Compounded Cylinder ......... 84 



25 Face of Compounded Valve ............................ 85 



26 Pipe to Steam Plugs, Compounded Valve ............... 86 



27 Center-Head Packing ................................. 87 



28 The Woolf Reverse Valve Gear ........................ 90 



29 Tram on Disc ......................................... 94 



30 Tram on Cross Head .................................. 95 



31 Tram on Valve Stem .................................. 97 



32 Sectional View of Boiler .............................. 106 



33 Interior of Steam Gage .... ........................... 108 



34 Section of Steam Gage Siphon ......................... 108 



35 Sectional View of Pop Valve ......................... 109 



36 Fusible Plug in Section ............................... 110 



37 Cut Showing Cannon Bearing and Gearing ............. 122 



38 Friction Clutch of Case Engine ........................ 123 



39 Section of Hub Portion of Clutch ...................... 124 



40 The Differential Gear, Showing Springs ................ 127 



41 Top View of Power with Sweeps Attached ............. 133 



42 Sectional View of Iron Frame Horse Power ........... 143 



43 Sectional View of Case Separator ..................... 146 



44 Cut Showing Space Between Teeth .................... 158 



45 Right Side of Belt Separator with Feeder and Wind 



Stacker ........................................... 164 



46 Left Side of Separator with Feeder, Weigher and Wind 



Stacker ........................................... 165 



47 Right Side of Geared Separator with Common Stacker. .166 



48 Shoe, Showing Position of Sieve Rods .................. 172 



49 Lip Sieves (reduced) ................................. 174 



50 Sieves and Screens (full size) ......................... 175 



51 Spacing of Holes in Leather Belts ...................... 214 



52 Belt Lacing with Ends Turned Up ..................... 214 



53 Lacing for Four Inch Leather Belt .................... 215 



54 Location of Holes for Lacing Canvas Belt .............. 217 



55 Stitched Canvas Belt Lacing ........................... 218 



56 Sectional View of Case Feeder ....................... 229 



57 Sectional View of Wind Stacker ...................... 235 



58 Telescoping Device for Straw-Chute .................. 235 



59 Head of Case Weigher ................................ 243 



