Two- and Three-Winch Systems and the Balancing of Weights
Diagrams of geared winches carrying suspended weights, illustrating the equality of loads
Two pen diagrams show trains of winches (verricelli) whose wheels carry weights hung in labelled boxes. The upper drawing pairs two wheels, marked with the numbers 30, 10 and 90, under the heading 'equality of weights'; the lower drawing sets three wheels in a row with the values 30, 90, 10, 180, 90 and 60. Only brief captions accompany the figures, which demonstrate how the weights are balanced across the geared system.
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Two-winch system with balanced weights
Two wheels are drawn side by side, each with a weight-box hung from it, and marked with the numbers 30, 10 and 90. The caption names it a system of two winches and notes the equality of weights it produces.
Three-winch system with suspended loads
Three wheels are set in a row, each carrying a hung weight-box, marked with the values 30, 90, 10, 180, 90 and 60. The arrangement extends the balance of weights to a longer train of winches.