diagram below is courtesy of the
Primary Industries & Resources Department
- and taken from the SA Department of Mines & Energy brochure
"ALMANDA SILVER MINE - A guide to the walking trail"
This is an impression of the interior of the boilerhouse and enginehouse which were erected in 1869. The engine powered a 15-head stamp battery and concentrating machinery which were located in an iron shed to the right of the engine.
|This is what one of the two Cornish boilers would have looked like...|
The ore is being crushed by the "stampers" at the top of the machine. Each of these is drawn up by cams connected to the two fly wheels on either side of the head.
After being lifted, the stampers fall down on to the ore, breaking it up into a fine powder.
This powder was mixed with water, then concentrated using mercury.
Once you have seen the diagram at the top of this page, the quality of the stone work used to make the engine mounting block you can still see at Almanda mine makes sense - a lesser wall would have been shaken apart by the vibration.
On the right, you can see the engine mounting block from above, with the mounting bolts still sticking out of it - they go all the way through the wall and into the ground.
The difference in the quality of workmanship of the engine mounting block when compared with the boilerhouse wall on the right of the picture is obvious, particularly when you look at them in the first picture in this section.
This is a close up view of the engine mounting on top of the wall. It's interesting to see the way part of the bracket has been sheared off during the engine's removal. It would have been a difficult job, out in the bush.
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