SLEEVE VALVE ENGINE COMING Publication: Automotive Daily News Byline: H.A. Tarantous Dateline: Detroit, Michigan Date: 27 August 1925

Detroit, Aug. 26.—It is generally agreed that one of the most desirable qualities an engine can possess is quietness, and, knowing this, engineers have oddly enough confined themselves almost entirely to the development of the poppet valve engine.

Charles Knight had to take his sleeve valve engine to Europe to obtain recognition, though after the European acceptance American makers took it up. But now we hear of an unusually large amount of experimenting and actual building of a single sleeve engine, using the Argyll patents.

These patents have been purchased for American rights and it is learned on good authority that there is a considerable amount of money already invested in Argyll production equipment. Further, at least half a dozen motor car makers have expressed their willingness to use the American produced Argyll engine and three of these have gone so far as to commit themselves to its exclusive adoption in place of the poppet engines they now use.

It has long been believed that the Argyll held much promise as a supplanter of the poppet. In the Argyle there is one sleeve which reciprocates and oscillates.

The writer always believed that it was worthy of further development and all that it really needed was a reduction in the amount of vibration produced by the oscillation of the sleeves. This vibration problem, it is understood, has been licked by the American interests holding the exclusive patent, production and selling rights.