Manufacturers Index - Buhr Machine Tool Co.
Buhr Machine Tool Co.
Ann Arbor, MI, U.S.A.
Manufacturer Class:
Metal Working Machinery
This page contains information on patents issued to this manufacturer.
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817,587
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Apr. 10, 1906
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Machine for drilling nuts and the like
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Martin Nelson |
ON, Canada |
This multiple-spindle drilling machine was sold by Nelson-Blanck Mfg. Co. as a drilling head accessory. Ads from 1914-1917 feature their two-spindle version; from 1919 to 1921 they also offered versions with 3, 4, 6, 8, 10, or 12, and available in both in-line and circular configurations. The distance between spindles was adjustable. They also offered custom designs. In 1925 it appears that Nelson-Blanck was acquired by Buhr Machine Tool Co. and we assume that firm also manufactured these patent drill heads. |
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1,075,545
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Oct. 14, 1913
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Explosive Engine
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Joseph F. Buhr |
Detroit, Wayne County, MI |
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1,392,678
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Oct. 04, 1921
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Chuck
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Joseph F. Buhr |
Detroit, Wayne County, MI |
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1,394,709
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Oct. 25, 1921
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Drill Head
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Joseph F. Buhr |
Detroit, Wayne County, MI |
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1,428,002
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Sep. 05, 1922
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Drill Head for Drilling Machines
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Joseph F. Buhr |
Detroit, Wayne County, MI |
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1,696,468
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Dec. 25, 1928
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Multiple-spindle drill head
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Joseph F. Buhr |
Detroit, MI |
Buhr Machine Tool Co. specialized in high-speed multi-spindle drilling machines for automotive manufacturing. Their machines tended to be specialized for particular operations such as boring holes in engine blocks for valve guides. |
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1,700,975
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Feb. 05, 1929
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Drill Head
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Joseph F. Buhr |
Detroit, Wayne County, MI |
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1,702,810
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Feb. 19, 1929
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Tapping Chuck
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Joseph F. Buhr |
Detroit, Wayne County, MI |
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1,845,123
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Feb. 16, 1932
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Collet Means
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Joseph F. Buhr |
Ann Arbor, Washtenaw County, MI |
See also patent #1,934,910. |
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1,934,910
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Nov. 14, 1933
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Collet Means
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Joseph F. Buhr |
Ann Arbor, Washtenaw County, MI |
See also patent #1,845,123. |
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1,973,942
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Sep. 18, 1934
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Socket Collet Structure
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Joseph F. Buhr |
Ann Arbor, Washtenaw County, MI |
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1,973,943
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Sep. 18, 1934
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Socket Collet Structure
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Joseph F. Buhr |
Ann Arbor, Washtenaw County, MI |
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2,068,594
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Jan. 19, 1937
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Bearing Structure for Rotatable Spindles and the Like
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Joseph F. Buhr |
Ann Arbor, Washtenaw County, MI |
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2,078,192
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Apr. 20, 1937
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Tool Holder
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Joseph F. Buhr |
Ann Arbor, Washtenaw County, MI |
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Tool Holder
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Rollo G. Ellis |
Ann Arbor, Washtenaw County, MI |
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2,152,302
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Mar. 28, 1939
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Lock for Tool Holders
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Joseph F. Buhr |
Ann Arbor, Washtenaw County, MI |
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