. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. 410 THE CIVIL ENGINEER AND ARCHITECTS JOURNAL. [November, the contrar)-, extend when the action flags. The jiarts necessary to eftect these different changes connect tlie valves with axes moved by the engine, by means of a contrivance of which Watt conceived the idea from the regulator employed in some of the flour mills. He called it the governor, it is also termed the centrifugal power regulator. Its efficiency is such that some years ago there was, in the cotton-mill of Mr
. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. 410 THE CIVIL ENGINEER AND ARCHITECTS JOURNAL. [November, the contrar)-, extend when the action flags. The jiarts necessary to eftect these different changes connect tlie valves with axes moved by the engine, by means of a contrivance of which Watt conceived the idea from the regulator employed in some of the flour mills. He called it the governor, it is also termed the centrifugal power regulator. Its efficiency is such that some years ago there was, in the cotton-mill of Mr. Lee, a mechanic of great talent, a clock set in motion by the steam-engine of the factory, and wliich acted almost as well as the ordinary spring clock by its side.—.see fiq. 15. M'att's governor is the secret, the principal secret, of the astonishing per- fection of the manufacturing products of the age; it is that which gives the steam-engine an action free from any vibration, and which enables it with equal success to embroider muslin and to forge anchors; to weave the most delicate fabrics, and to communicate rapid motion to the massive stones of the flour mill. This explains why Watt said, without being liable to the Fig. 13 & tkj^ PARALLEL MOTION. The apparatus adopted for carrying this motion into effect, is represented in fig. 13, wliich is an elevation, or side view of one half of the engine beam ; and fig. 14, a plan of same ; similarletters, in both figures, refer to similar parts; the beam moving on its axis A, every point in its arm moves in the arc af a circle, of which A is the centre. Let B be the point which divides the arm, A F into equal parts A B, and B F, and let D C be a straight rod, equal in length to A B, and playing on the fixed centre or pivot C. The end D of this rod, is connected by a straight bar D B, with the point B, by pivot at B and D, on which the rod B D plays freely. If the beam be supposed to move alter- nately on its axis A, t
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