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Glass Negative - Chas Ruwolt Pty Ltd, Great Northern Pocket Grinder for Australian Newsprint Mills, July 1940 Image Reg. No: MM 012410

Description Of Content:
View of fully assembled Great Northern Pocket Grinder manufactured to Great Northern, Canada, design. 6 units where made for Australian Newsprint Mills, Tasmania, and are almost completely of cast 16% chrome stainless steel to combat corresion due to eucalypt organic acids. The grinding wheel is 62" diameter x 54" face width and absorbs 1800 hp at 240 RPM. Weight of each machine is 35 tons.
It is believed but not substantiated that these were the largest stainless steel castings produced in the World at that time.
Acquisition Information:
Donation from Vickers Ruwolt Pty Ltd, 1986
Discipline: Technology

More information

Themes this item is part of: Engineering Collection, Vickers Ruwolt Collection
Primary Classification: MANUFACTURING & INDUSTRY
Secondary Classification: Engineering Products
Tertiary Classification: pulp & paper manufacturing equipment
Original Caption: GREAT NORTHERN GRINDER. AUSTRALIAN NEWSPRINT.
Inscriptions: Circular stamp and photo number do not appear on negative: 'CHARLES RUWOLT PTY LTD MELBOURNE PHOTO 970 '
Entered in hand-written catalogue as: '970 | Great Northern Grinder | Australian Newsprint '
Entered in hand-written subject index under 'PAPER MACHINERY' as: '970 | 3.7.40 | Great Northern Grinder | Australian Newsprint | L5801 | 2 Neg.'
Format: Glass Negative: Black & White; Whole Plate
Place & Date Depicted: Richmond, Victoria, Australia, 1940

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