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Title: |
1893 Article-Weyman & Hitchcock, Vertical Oil Engine |
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Source: |
The Engineer Magazine, 23 Jun 1893 pg. 544 & 549 |
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Insert Date: |
3/20/2013 8:58:21 PM |
On the next stand Messrs. Weyman and Hitchcock show four of their “Trusty” oil engines, one horizontal, one portable, one small vertical, and one larger vertical. The portable engine and the larger vertical have each two cylinders, and the cranks are placed at about 120 deg. apart, so that the impulses are given at two different parts of the revolution. The portable to this extent differs from that exhibited by this firm at the Islington show last December, as illustrated in our columns. It is intended to take the place of the portable steam engine of 8-horse power nominal, and, it is stated, indicates 22-horse power. It is of about 10½ brake horse-power and its weight is about two and a half tons. Placing the cranks at 120 deg. is a new departure with the four-cycle type of engine, but it is successfully done and with a strong crank the advantages may be secured without any disadvantage. The engine may, moreover, work at full power with half load, so as to run at the highest economy, both parts of the engine being capable working independently without making any change. The smaller vertical engine is illustrated by the accompanying engraving. All these engines are of the vaporizer type, using oils up to 240 deg. flashing point. They run at a high speed and this materially aids in the attainment of regularity when driving machinery such as a thrashing machine, which makes suddenly varied demands on the motor.
Image courtesy of Grace's Guide.
http://www.gracesguide.co.uk/File:Im1893EnV75-p544.jpg |
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1893 Weyman & Hitchcock, Vertical Oil Engine
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