Best Known Today for its Unique Carburetor, Hagan Gas Engine and Manufacturing Co. Followed its Own Path on the Road to Engine Manufacturing
Nameplate from a Campbell/Hagan.
Unsuccessful Hagan tractor.
The Hagan factory in Winchester, Ky., sometime around 1910. The building was razed in 1985.
100 HP four-cylinder Hagan actually two, two-cylinder engines coupled together.
The Hagan factory floor as depicted in a Hagan catalog.
Earliest known Hagan brochure showing an entirely different carburetor than the chain-drive affair Hagan was known for. It's unclear how many engines were equipped with this design.
Individual Hagan carburetor components as shown in a Hagan catalog.
Complete Hagan engine showing belt drive to carburetor. Also visible at bottom behind flywheel is gear drive for camshaft.
Hagan valve train showing 'rockshaft' for valve actuation. Hagan employed a mechanically operated intake valve instead of the more common atmospheric intake valve used by most manufacturers of small, stationary engines.
Hagan valve train and cylinder layout with double lobe camshaft for rockshaft visible. Note, too, that Hagan engines are headless and in fact have no gasketed surfaces, all joints being ground to fit.
Two-cylinder Hagan was two single-cylinder engines on a common base.