This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1914 edition. Excerpt: ...shown in Fig. 87. Another fact to be Fig. 86. noticed here is that no eccentric is used, the eccentric being replaced by a pin attached to the governor arm. The pin E, of course, revolves about the center of the shaft when the wheel turns and drives the eccentric rod in the same way as would an ...
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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1914 edition. Excerpt: ...shown in Fig. 87. Another fact to be Fig. 86. noticed here is that no eccentric is used, the eccentric being replaced by a pin attached to the governor arm. The pin E, of course, revolves about the center of the shaft when the wheel turns and drives the eccentric rod in the same way as would an eccentric whose center was at E. This is an advantage on a high-speed engine since an eccentric running at high speed is liable to cause trouble. The position of the short heavy arm which carries the pin E is controlled by the outer weight arm through the short link. As the speed increases the outer arm swings relative to the flywheel and in turn swings the eccentric arm about P, thus changing the position of E relative to the center of the shaft and crank. 1 60. Inertia Governors. No governors which depend solely upon centrifugal force for their operation can be very sensitive because in order to cause the weights to move out the speed must increase an appreciable amount. The governor shown in Fig. 88 (also shown in Fig. 18) belongs to a class known as inertia governors. 'In Fig. 88 the centrifugal force of the weight arm (whose center of gravity is at the point C) just balances the force of the spring in any given position when the engine is running at normal speed. This balance is adjusted by changing the initial tension on the spring and by adding or taking away weight from the ends of the weight arm, provision being made for doing this. With the wheel turning as shown by the arrow, the weight is pulled around by the spring. Suppose now that the wheel is turning at the speed for which the mechanism is adjusted. If the load were to suddenly go off so that the wheel started to speed up it would try to speed the weight up with it. The inertia of...
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Add this copy of Mechanism of Steam Engines to cart. $47.14, new condition, Sold by Revaluation Books rated 4.0 out of 5 stars, ships from Exeter, DEVON, UNITED KINGDOM, published 2009 by BiblioBazaar.
Add this copy of Mechanism of Steam Engines, Revised Edition, Volume 1. to cart. $65.00, fair condition, Sold by Brentwood Books rated 4.0 out of 5 stars, ships from Kinnelon, NJ, UNITED STATES, published 1923 by John Wiley & Sons.
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Seller's Description:
FAIR. Textblock without cover, title page, or copyright page. Starts with Preface (page iii) through the end of the index on page 277. Authors inferred from initials at end of preface to first edition, date of publication inferred from presence of preface to revised edition. Title stated in the preface to the revised edition. Binding of textblock is sound. Pages creased and somewhat worn, a few pencil marks in text.
