Four Post Battery Frame

Seldom used due to its increased overall height and cost over a three post stamp mill; the advantage of this stamp mill was it seldom had a broken camshaft

Stamps could be ordered from 850 pounds to 2,000 pounds each; stamps heavier than 850 pounds were not recommended for pack animal transportation

Can you name the  components of this stamp mill? (a key is provided below)                                                       

The most desirable order of drop was usually a 1-4 or a 1-5 drop.  the 1-4 drop was 1-4-2-5-3 meaning that stamp 1 dropped first, 4 was second, 2 was third, 5 was fourth, and 3 was last.  This drop was also written as 1-3-5-2-4 which is the same, but written backwards.  this drop caused the ore to build up on an end of the mortar resulting in an uneven distribution of labor on the dies.

The 1-5 drop was completed in the order 1-5-2-4-3 or written backwards, 1-4-2-3-5.  The drop became the favorite as it gave the most satisfactory results ever found.

The illustration here shows 10 stamps which commonly used the order 1-6-5-10-2-7-4-9-3-8.