Graham Industries

These engines look great all on one board with a gang valve in back to control the air/steam

TVR1A

1/2" bore

5/8" stroke

This twin cylinder, double-acting, reversing, Hackworth gear steam engine kit. It is available as an assembly-only kit or as a fully-assembled engine. I purchased it as a kit and it took about 8 hours to assemble. The instructions are very good, but a few things need to be filed and lapped. It runs very well on about 8 lbs of steam or air.

VR1A

1/2" bore

5/8" stroke

This single cylinder, double-acting, reversing Stephenson gear steam engine kit. I purchased this as a kit and then assembeled over several hours. The classic "Stephenson" reversing gear uses two eccentrics and lots of linkage providing plenty of visible action when the engine is running. With a high end of over 4000 RPM, everything becomes an impressive blurr. A "D" slide valve, driven by the reversing gear, provides smooth steam distribution to the double-acting cylinder. The crosshead is a trunk type.

HM1

Bore .344"

Stroke .500"

This is a double-acting, single cylinder, non-reversing steam engine kit constructed from aluminum, brass and steel. The kit contains a detailed instruction manual, all parts fully machined and all necessary hardware, including brass hex-head bolts for all visible hardware.

 

SC1A

1/2" bore

5/8" stroke
The GAGE SC1A is a compact, double-acting steam engine. A slide valve is used to control the steam. The compact size is possible by using a "Scotch Yoke" drive between the piston and the crankshaft. A Scotch Yoke is also known as a slide crank. An eccentric driven yoke operates the valve. Using a yoke drive eliminates the length of the crosshead commonly used in steam engines.

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