Scientific Instruments > Calculating

Amsler Early Planimeter by Elliott Bros. London.

Item#: SCI396

SOLD

 

This gold plated brass Planimeter is an early Amsler type integrating machine that was made in England to calculate the area of closed irregular shapes. The Planimeter contains a pole arm with detachable weight and steel pin that acts as a steady pivot. A tracer arm with a pointer and handle, and a carriage with measuring wheels. The pole weight is connected via a hinge to the carriage. Moving the tracer pointer along the borders of the shape will cause the carriage wheel to rotate. The net roll of the wheel is proportional to the area of the shape and can be read from the calibrated scale. The Planimeter is numbered 16330 and marked Elliott Bros. London. Adjusted. The planimeter comes with its original purple velvet lined box.