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560
�KINEMATICS OF MACHINERY.
�( 72 and 76), its formula runs (6 / ; / P- L ) tl - b. In Hornblower's
train the curve-triangle C, (which we have already examined in
���FIG. 40,7.
�FIG. 408.
�26) takes the place of the pin 2. The chain being reduced by the
link b, the curve-triangle appears without its rectangular partner
��IMG. 409.
element. The formula of the chain runs therefore (C"C ) P^Y'b. If we bring both trains by augmentation into their complete condition we obtain the mechanisms shown in Figs. 409 and 410. The
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