Antique Brass Saxton Elliott Bros Water Current Flow Meter Gauge. Very rare Saxton water flow meter made by Elliot Bros London. The Saxton’s water current meter consists of a revolving vane and a dial. A tail and a mount for a staff for holding the instrument underwater at the required depth. The instrument can be adjusted along the staff for this purpose. At the dial, there is a spring mechanism that allows the operator at the surface to engage the dial against the vane screw by means of a piece of string. The string is pulled tight at the start of the measurement period and released at a given time. The release of the string disengages the dial from the vane screw and the pad at the bottom holds the dial and ends the measurement period. By means of this system, the operator can measure a the accurate flow which can be repeated at various points in the water course. Housed in it’s original Mahogany case. Good used condition with age related wear and tear. The stopper for the glass oil bottle is stuck. Please View Pictures for more Details and Condition as they form a Important Part of the Description.