[Two rotary tipples, A-J mill.] (no. I)
Scope and Contents
Milling began at the rotary tipples. The tipple on the left was dumping simultaneously 4 ten-ton ore cars from the mine. Each train from the mine had forty similar cars. The tipple on the right was being repaired. The ore from the mine usually had an average value of about $1.50 or less per ton at $35.00 per ounce of gold. The mine operated 24 hours per day, 363 days per year and averaged over 12,000 tons per day. The tipples dumped over 1200 car loads per day, into a 1500 ton hopper. Six devices, called apron feeders, moved the ore from the hopper to the primary crushers.
Dates
- circa 1930
Conditions Governing Access
The collection may be viewed. However, the images may not be photocopied.
Extent
1 Photographic Prints
Language of Materials
From the Collection: English
Repository Details
Part of the Alaska State Library - Historical Collections Finding Aids Repository
PO Box 110571
Juneau AK 99811-0571 US
907-465-2920
907-465-2925
907-465-2151 (Fax)
asl.historical@alaska.gov