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336 |
IDEAL HOME LIFE |
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adjusting at this vital part of the engine makes all the difference between a successful and an unsuccessful engine. This can be adjusted by lengthening or shortening the stroke of your piston valve or length of the rod itself. Your valve should be in position as shown at K, at about the middle of the outward stroke.
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Electrical Apparatus |
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BY R. T. JOHNSTON
Here is shown a simple way in which to generate electricity. Obtain a pint fruit jar and fill it three-quarters full of |
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a solution made from a pint of water and four ounces of salammoniac. Get two electric light carbons, remove the copper coating, file a groove around one end of each and connect with copper wire. Next buy a zinc pencil at any electrical supply house for five cents. Fasten them together with two pieces of wood, which are clamped together and bored to receive the carbons and pencil. Separate and plane down a little on the two edges that are to meet so that there will be a small space between them when you put in your carbons and zinc pen |
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Figure 37 |
cils, which will allow |
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