Valve Gear & Timing

Stevenson Valve Gear

In 1841 two employees in Stephenson’s locomotive works, draughtsman William Howe and pattern-maker William Williams, suggested the simple expedient of replacing the gabs with a vertical slotted link, pivoted at both ends to the tips of the eccentric rods.

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Stage 1 & 2

(November 7, 2007)

Stage 1 and 2 contain the frame and drive wheels.

The frame is beautiful.  It is probably made on a CNC and is powder coated.  It is held together in four places – the front and read frame spreaders.  There is also a spreader that holds the front spring Continue reading


(November 2, 2007)

The first section of the locomotive included everything necessary to build the entire kit.

Typical OS fashion, the kit is immaculate – everything is done with great thought and precision.  My first order arrived just about two weeks after I placed it.

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