. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. that of fig. 1. In this case the multiplication is four times; the figure requires but little explanation—for every course of A in its groove B will move twice in its groove, for every course of B the crank C D revolves twice, and therefore four times for every stroke of A. We have said that it is quite immaterial whether the alternating points move in straight grooves or be attached to beams describing arcs; citlier plan niav be used exclusively, or the two combined in any w
. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. that of fig. 1. In this case the multiplication is four times; the figure requires but little explanation—for every course of A in its groove B will move twice in its groove, for every course of B the crank C D revolves twice, and therefore four times for every stroke of A. We have said that it is quite immaterial whether the alternating points move in straight grooves or be attached to beams describing arcs; citlier plan niav be used exclusively, or the two combined in any way found convenient. Fig. G represents a case in which there are no grooves ; the multiplication is here eight times. It must not be sup- posed that thf mechanism is complicated because a great many lines appear in the figure—the dark lines represent the whole machinery, the dotted lines lines merely show the different parts in their extreme positions, Aj Bi is the prime moving beam, oscillating about the pivot B ; for every oscillation of A, the point Aj of the second beam Aj Cj will oscillate in its dotted arc twice, owing to the connection by the Fig. rod Aj Ao; similarly, for every oscillation of the second beam, the beam A„ C, will oscillate twice ; and lastly, from what we have said before, it will be seen that for everv oscillation of the third beam the crank D, E, will revolve twice ; the motion will therefore, on the whole, have been multiplied eight times. Having considered various methods by which reciprocating may produce multiplied circular motion, we may proceed to a method by which circular motion may produce multiplied circular. The method is extremely simple. A B fig. 7, is a crank revolving about A, and Fig. 7. Fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original London : [Wil
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