THE MILLING STRUCTURES AND MACHINERY.

Mr. Johnson added the following, showing the present status of the milling

industry in Minneapolis:

"The description of the process of the manufacture of flour so well

given above, conveys no idea of the extent and magnitude of the milling

structures, machinery, and buildings employed in the business. Many of the

leading millers and millwrights have personally visited and studied the

best mills in England, France, Hungary, and Germany, and are as familiar

with their theory, methods, and construction as of their own, and no

expense or labor has been spared in introducing the most approved features

of the improvements in the foreign mills. Experimenting is constantly going

on, and the path behind the successful millers is strewn with the wrecks of

failures. A very large proportion of the machinery is imported, though the

American machinists are fast outstripping their European rivals in the

quality and efficiency of the machinery needed for the new mills constantly

going up.

"There are twenty-eight of these mills now constructed and at work,

operating an equivalent of 412 runs of stone, consuming over sixteen

million bushels of wheat, and manufacturing over three million barrels of

flour annually. Their capacities range from 250 to 1,500 barrels of flour

per day. Great as these capacities are, there is now one in process of

construction, the Pillsbury A Mill, which at the beginning of the harvest

of 1881 will have a capacity of 4,000 barrels daily. The Washburn A Mill,

whose capacity is now 1,500 barrels, is being enlarged to make 8,500

barrels a day, and the Crown Roller Mill, owned by Christian Bros. & Co.,

is also being enlarged to produce 3,000 barrels a day. The largest mill in

Europe has a daily capacity of but 2,800 barrels, and no European mill is

fitted with the exquisite perfection of machinery and apparatus to be found

in the mills of this city.

"The buildings are mainly built of blue limestone, found so abundant in the

quarries of this city, range and line work, and rest on the solid ledge.

The earlier built mills are severely plain, but the newer ones are greatly

improved by the taste of the architect, and are imposing and beautiful in

appearance."

Scientific American Supplement, No. 275, April 9, 1881 · 第 18 / 67 题