H.L. DAY COMPANY:

The collection consists of 23 linen drawings of dust collecting systems designed by the H. L. Day Company for use in various grain elevators and sawmills in Minnesota and other locations in the United States. Most of the drawings are concerned with the mechanics of the dust collecting system itself (such as ductwork), but some include sketches of building exteriors. They are arranged in chronological order.

Early drawings were signed by H. L. Day, later ones by the H. L. Day Company.

Removal of dust from mills and grain elevators is important because dust of any kind can be explosive; even small mills sometimes have explosions. The problem became more acute in the 1870s as mills and grain storage facilities became larger and as advances were made in the associated technology, such as the middlings purifier. The 1878 explosion of the Washburn "A" Mill, for example, destroyed not only the "A" Mill, but much of the surrounding milling district as well.

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Availability:

The collection is open for research use.

Preferred Citation:

[Indicate the cited item and/or series here]. H. L. Day Company (Minneapolis, Minn.). Architectural Drawings. Minnesota Historical Society.

See the Chicago Manual of Style for additional examples

Accession Information:

Accession number: 11,922

Processing Information:

Processed by: John M. Wickre

Catalog ID number: 990017153770104294

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This collection is indexed under the following headings in the catalog of the Minnesota Historical Society. Researchers desiring materials about related topics, persons or places should search the catalog using these headings.

Topics:

Dust explosions.

Grain elevators.

Grain elevators -- Dust control.

Sawmills.

Sawmills -- Dust control.

Organizations:

Banner Grain Co. (Minneapolis, Minn.).

Berst Manufacturing Co. (Cloquet, Minn.).

Exchange Elevator Co. (Saint Louis Park, Minn.).

Minneapolis Union Elevator.

Minnesota and Ontario Paper Company.

Monarch Elevator Company (Minneapolis, Minn.).

Places:

Minneapolis (Minn.).

Document Types:

Engineering drawings.

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