The Corliss Engine

[Illustration: George H. Corliss

Born in North Easton, Washington County, New York, George H. Corliss

started out to work in a general store. At twenty-one he was the

proprietor of his own store. It was an incident which happened there

that set him forth on a career as an inventor. A customer complained

of a pair of boots which ripped at the seams. Corliss thought there

ought to be a better way to sew and in the process of trying to find

it, invented a sewing machine in 1843, three years before Elias Howe

received his patent. That was his first step as an inventor and it

was followed by many other inventions.]

The Corliss steam engine improvements, at the time of their invention

and for many years thereafter, represented the most effective device

ever designed for economizing in the use of steam and regulating the

steadiness of a steam engine’s power and speed. These were essential

steps if man was to harness the power of steam and turn it to practical

use.

Before the advent of the Corliss engine, those engines which were

available were very wasteful in their use of fuel to produce steam and

its resultant power. They were also unable to maintain even speeds in

driving factory machinery and other units. This uneven flow of power was

a serious handicap to those who wanted to use steam to turn the wheels

of industry.

The secret of the efficiency of the Corliss engine lay in its most

distinctive feature ... the Corliss cut-off valve gear. The cut-off was

automatically controlled by the governor regardless of power variations

and without any slowing in speed. This was fundamentally responsible for

the Corliss’ efficiency and savings in fuel. So efficient was the engine

that the inventor often agreed to sell his product under an agreement

that the saving in fuel cost by the end of a certain period would be its

price. In one case, after the engine had run through the stated period

of two years, the purchaser was glad to pay twice the list price rather

than the much higher amount represented by actual savings.

The Corliss engine has played no small part in the development of Dayton

industry. Two such engines were used by The National Cash Register

Company for almost fifty years. One of these has been placed in Carillon

Park. In the next few pages this faithful worker for industrial progress

tells some of its experiences.

[Illustration: Looking over the top of the Corliss engine as

installed in the miniature power house in Carillon Park.]

Milestones in the Mighty Age of Steam: The Grasshopper and the Corliss · 第 9 / 12 题