The Montgomery advertiser., 1904-09-25

that men of high standing as mechani- cal engineers, having seen what they called my previous achievement would pronounce 1t a wonder a marvel and a great success. I could only smile and politely as possible point out the flaw which utterly ruined the machine s practical chances.
 "Once I had made my draught of the new principle there was never doubt or a misgiving I built an engine of twenty-five horse power according to my new plan. and 1t developed twenty eight in use. I ran my shop with It. saving twenty-five per cent in steam, using one fourth the floorspace of an equivalent reciprocating engine and having no vibration whatever. but my accomplishment did not include plans for compromising and installation In units. and I had that to achieve.
 The Perfect Engine.
 Now 1t Is done. Tn my shop have a 300 horse power engine that Is rotary and Is perfect. IL is the smallest, most economical and fastest engine for It's power ever built and is so complete a success that I can make public the main secret which I have so carefully guarded so long.
 Little anyone knows of the difficult ties I have had to protect my opera tions from being stolen. The would be thieves have ranged from agents of forengn governments disguised as worklngmen 10 rival inventors who were handy with jimmy.
 The eighth principle used In the building of the tenth and eleventh engines is simple in the extreme. The steam Is introduced through a hollow shaft, which Is stationary and enclosed d high jacket of elIiptical form, whose greatest dimetrical dimension is q frac- ton Jess than the diameter of the steel enclosing cylinder; so in repose the cyl inder is supported on the elltpse.
 The hollow stel shaft is not in the centre of the elliptical jacket, but in the geometrical centre of the cylinder, and the distance from the centre of the shaft to the blsection at right angles of the line of the circumference of the throw of the ellipse is equal to the ra- dius of the cylindrical cavity. so that the ellipse on the throw side Is fin flush contact with the cylinder and on the other side there Is q space or cham Der. into which protrudes the first seg- mental blade. fitted to a housing in the cylinder and guided by a crank Dl-
 am critically opposite Is duplicate blade. but the throw of the ellipse presses 1t back into its housing. .The eIllpse is practically the steam chest. Steam is admitted at the end of the hollow shaft into the ellipse, and by port into the part of the chamber on the convex face of the smented blade. The steam expands against three faces of resistence the outer sur face of the elllpse, the inner surface of the cylinder and the convex surface of the blade. Two are unresponsive. the third and last the blade receeds before the pressure and pushes the cylinder into revolution.
 Now. the first segmental blade, ap preaching the greater dimension of the ellpse. Is forced back into its hous- ing. and the second segmental blade, relieved of the pressure of the greater dimension of the ellipse, comes out of It's housing and when protruded steam again issues from the part in the el- lipse into the newly formed chamber, the first segmental blade now acting as an abutment and the cylinder is driven on until the first blade comes out again. and so on the alternating progress goes
 sto9m Admission.
 "steam Is admitted only during two