Ann: Quarterly Activities Report SEP 2009 , page-28

Robert I wouldn't give up on batteries! MinerJoe's information may relate to Bendigo but over the hills...

The A1 had a 20 head battery in the late 1940's, The capacity of this battery was 600 tons per week according to Lloyd and Combes

" the new mill...comprised four batteries of five head each, mounted on rubber pads on concrete foundations. the linings, dies and shoes were made of chrome steel ...( NK aside , stainless steel did not exist in 19thC).. and each complete stamper weighed 1250 pounds, adjusted to 96 drops per minute.

the battery was fed by 3/4 ton side tipping trucks delivering the ore from the adit onto a Jacques No 2 drum crusher ( or "bell cracker"), which broke the rock into two inch minus material.

The crushed ore was passed through screens with 360 holes per square inch and the over copper plates eight feet long and three feet wide, three sets of hydraulic traps to corduroy strakes, Wilfley tables 15 feet long, and secondary strakes which discharged ino the creek... ( Yikes!!!!)... The capacity of the plant was 600 tons per week"

this stamp mill was still in use in the 1960's

The mill was built by Jacques Brothers of Richmond