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Patent application for Heated Dinner Transport Apparatus

Drawing to accompany application for United States Patent 3,129,317, awarded to Oscar Curtis Howard on April 14, 1964, for Heated Dinner Transport Apparatus. Oscar C. Howard papers, 1945–1990, Cafeteria and Industrial Catering Business, Manuscripts Collection, Minnesota Historical Society.

Patent-model dust collector

Mahogany and tinned-iron patent model of a flour mill dust collector patented in 1879. The introduction of dust-collecting machines to flour factories greatly increased the safety of the milling process, preventing dust-ignited explosions like the one that destroyed Minneapolis' Washburn A Mill in 1878.

Patients

This photo shows a group shot of patients at Mudcura Sanitarium, c.1910.

Patients at Willmar State Hospital

Patients at Willmar State Hospital, 1940.

Patients dancing at the Children’s Preventorium

Patients dance the Charleston to live music at the Children’s Preventorium of Ramsey County. Photograph by the St. Paul Daily News, ca. 1930.

Patients in a day room

Patients in a day room at Cambridge State Hospital’s Boswell Hall, 1970s. From a collection of photographs used as evidence in Welsch v. Likins, 1973.

Patricia Staine (right) and Minnesota Representative Alicia Kozlowski

Patricia Staine (right) testifies before the Minnesota House of Representatives on February 14, 2023, during a hearing on a bill to amend the Minnesota Indian Family Preservation Act (MIFPA). Representative Alicia Kozlowski (DFL-Duluth) sits at left. Copyright Minnesota House of Representatives; photo by Catherine Davis. Used with the permission of House Public Information Services.