Taggart, William Scott · London : George Routledge & Sons, Ltd. · leaf 107
on a circular scale. This scale is usuallya quadrant of a circle, and is divided so that the weight of theyarn can be read off. A diagram of this yarn balance is shown in Fig. 149. Whenthe apparatus is in a state of equilibrium, the long arm pointeris at zero on the scale, this point being some… … Fi(^.15Q the arms ; for when the arms come to rest, it is seen that theweight in P is nearer to the vertical line through F, whilst Wis farther away. As P increases its moment decreases, whilstthe moment of W increases. W itself is a constant quantity.The result of these changes in the moments of…
Textile machinery
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