. Canadian forest industries 1892-1893. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. Owners and Sole Manufacturers London Office: 75 Queen Victoria St. Chicago Office: 41 Traders Building Montreal Office: H. McLaren & Co., Agents 74 CORTLANDT STREET NEW YORK r>, ^ ^ & The Magnolia Anti-Friction Metal Co. 74 Cortlandt Street, New York, New York, , March 5, 1891. Gentlemen,—About March 26, 1890, samples of metal marked "Spooner's Finest Copperine Babbit" were submitted to me for test ; \v> test showed finest results
. Canadian forest industries 1892-1893. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. Owners and Sole Manufacturers London Office: 75 Queen Victoria St. Chicago Office: 41 Traders Building Montreal Office: H. McLaren & Co., Agents 74 CORTLANDT STREET NEW YORK r>, ^ ^ & The Magnolia Anti-Friction Metal Co. 74 Cortlandt Street, New York, New York, , March 5, 1891. Gentlemen,—About March 26, 1890, samples of metal marked "Spooner's Finest Copperine Babbit" were submitted to me for test ; \v> test showed finest results, and on analysis, it proved to contain no copper, and approximated the formula of Magnolia Metal. In October of the same year other samples with same marks were sub- mitted for test, and tested in comparison with Magnolia Metal, upon our new testing machine, built at great expense. This test for temperatures showed Magnolia Metal to have less friction and a temperature of about 100 degrees less. On December 31st this perfected test piece of Copperine was tested again with the result of its fusing with ten minutes run of 1600 pounds to the square inch. On January 31st Magnolia Metal was tested, which ran fifteen min- utes with 1800 lbs. to the sq. inch, and one hour with 2000 lbs. to the sq. inch, and at the end of the hour the metal showed a temperature of 20c degrees Fahrenheit. Under separate cover we hand you detailed reports of the tests, showing velocity of rubbing surface about 2000 feet per min- ute, diameter of shaft 5 inches, and revolutions about 1500. Yours truly, H. G. TORREY. Note.—Mr. Torrey is Assayer, and has been in Mint ser vice at New York for 30 years. Jolin Bertram & Sons 1 CANADA TOOL WORKS _ DXJTTJDJLS, OETTJLHIO MANUFACTURERS OF WOOD-WORKING MftCHINBRY MflOfilNB TOOLS, BTG. Write for Prices and Catalogue C. C. CLEVELAND G. F. CLEVELAND J. L Goodhue & Go. manufacturers of T BATHER BELTING ^ and LACE LEATHER GEO. CORM/YOK Wholesale a
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectforestsandforestry
