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Figures (3)

Fig. 1
Fig. 1

Side view of resistance. Sections AB and CD are detailed in Figs. 2 and 3.

Fig. 2
Fig. 2

Section AB of Fig. 1. 1—Slate Base. 2—Locking Nut. 3—Resistor. 4—Clamping Nut. 5—Binding Post. 6—Thumb Nut. 7—Binding Post. 8—Resistor Slot.

Fig. 3
Fig. 3

Sliding Contact (Section CD, Fig. 1). 1—Slate Base. 2—Guide. 3—Slider. 4—Binding Post. 5—Thumb Nut. 6—Clamping Screw. 7—Phosphor-bronze Support. 8—Phosphor-bronze Clamp. 9—Cross arms. 10—Contact Wires. 11—Resistor Wire.