LOCOMOTIVE FOR RACK RAIL, MADISON AND INDIANAPOLIS RY. 1848

     Made by Mr. Baldwin of Philadelphia, 8 coupled drivers worked by 2 cyls. Inclined = 17 x 22. Rack Rail laid midway of the two rails of the line 10" wide. Pitch of teeth .4

     2 vertical cyls. 17 x 18 with pistons working downwards connected by cranks to pinion beneath boiler. Pinion worked into a wheel twice its own dia. Axis of this wheel being supported in bearings in the lower ends of a pair of connecting rods, which through the intervention of a bent lever acted upon a bent piston in a horizontal cyl. 10" dia. might be raised or lowered according to the necessity of engaging or disengaging the rack pinion with or from the Rack Rail.

     Five Cylinders in all. 112 tubes 2" in dia. x 17 feet long. Weight of engine exclusive of tender upwards of 30 tons.

     In 1848 the rack rail was adopted in an incline of 1 in 17 in the Madison and Indianapolis Ry.

     This incline rose from the north bank of the Ohio River at Madison, and was about five eights of a mile in length.

     Two engines as shown above called the "John Bright" and the "John Brough" were built by Mathias W. Baldwin of Philadelphia for working on that part of the line.

     The dimensions and description are given above.