Gas Engines

The hobby of collecting antique engines, past and present.

Trials & Tribulations: 5-Year Dempster Engine Restoration

By Brian Edgerton

An old Dempster engine avoids the scrap yard and comes back to life after an extended restoration.


Atkinson Differential Engine Replica

By Jim Kennedy

Building a full-size and running Atkinson differential engine.


The Tale of a 15 hp Ohio Engine

By Mike O’Malley

A circa-1915 15 hp Ohio resurfaces after 100 years in Maine.


Rare Engines: Otto and Westman Busy Bee

By Bill Vossler

The Schneider brothers, along with their father, developed a knack for finding rare engines like their 1906 Otto.


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Coolspring Spotlight: Circa-1905 10 hp Klein Model 5

By the Gas Engine Magazine staff

This Klein Model 5 runs hit-and-miss controlled by a pendulum governor, unlike earlier Transit engines.


Elevator Engine: 1942 Ruston & Hornsby Mark CR

By Glenn Thompson

A 17 hp Ruston & Hornsby Mark CR engine and a brief history of Ruston & Hornsby Ltd.


More Tiny Tim Generator Information

By Ken Karrow

A reader responds to another reader’s Tiny Tim generator from a past issue.


Bates & Edmonds Air Compressor Questions

By Jim Brown

A reader wants to hear from anyone who can shed some light on a Bates & Edmonds vertical engine.