PICTURE - PATTERNS FOR MODEL


March/April 1953
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Mr. Earl Nelson of 4052 Seventh St., Minneapolis, Minn., tells about the Model Engine he built and which is pictured in this issue. Ed.

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I waited some time for the pictures you will find enclosed. They were taken by the best photographer I could get, he is head photographer at the University of Minnesota.

This engine develops about one-half hip. at moderate speed and pressure. It is built a little different than the ordinary engine, in that the cylinder is square, on the order of a Corliss but still 'has a still valve.

You will note that the steam goes in the center of the cylinder on the top and comes out the same on the bottom. Also note that the cylinder cocks are built in the cylinder and drain into the exhaust pipe in the bottom.

Thus engine is not just an engine. It is built as neat as possible and with care it. runs noiseless at any speed.

I am also sending you a picture of patterns for a one-quarter hp. I am building and pretty much on the order of the one-half hp.

I have cylinder and valves of Mr. Gaines engine from Glenco, Minn. I have bored the cylinders, refaced the valves and seats, made new pistons and rings and valve stems. They did look sickly when I started on them but they will survive.

Well Mr. Ritzman, I think you should have a little of my background. I was born in a machine shop and took to mechanics quite early, and along with that I was interested in steam engines of which I have built many kinds and still enjoy working: with them.

Back in the year 1922 I was stationary engineer for the Soo Line Railroad but lost out when the depression struck. I stood high with the company but did not go back as I went into the artificial limb business. I worked at this for over 20 years. This gave me the name of Nelson Machine and Joint Works. At one time my work was over the world but now do very little of it. I like my hobby best.

I am getting too old to work hard but like to do things that must be right. Things that take time to make right. I am over 70 years old and have lost speed but still retain accurate workmanship.

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