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Patents for Harold J. Siekmann
Patents 46 - 60 of 64
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NumberDatePatenteeTitleType
2,553,984May 22, 1951H.C. Kemper, H.J. SiekmannElectric Duplicator Attachment for Lathesmetal lathe accessories and attachments
2,554,721May 29, 1951G.J. Kasselmann, H.J. SiekmannDial Indicating Mechanismmetalworking machine mechanisms
2,558,275Jun. 26, 1951N.D. Cooper, H.C. Kemper, H.J. SiekmannLathe Control Mechanismmachine tool controls
2,561,712Jul. 24, 1951H.J. Siekmann, G.J. KasselmannAdjustable pulley v-belt transmissionmetalworking machine mechanisms
2,587,542Feb. 26, 1952H.J. Siekmann, G.J. KasselmannDuplicator attachment for lathesmetal lathe accessories and attachments
2,596,511May 13, 1952W.R. Meyer, H.J. SiekmannCrankshaft Lathe Tool Feeding Mechanismmetalworking machine mechanisms
2,623,429Dec. 30, 1952H.J. Siekmann, W.R. MeyerWork Handling Appparatus for Machine Toolsmetalworking machine mechanisms
2,643,570Jun. 30, 1953W.R. Meyer, H.J. SiekmannMultiple Station Center Drive Crankshaft Lathemetalworking machine mechanisms
2,653,502Sep. 29, 1953H.J. Siekmann, W.R. MeyerWork Handling Appparatus for Crankshaft Lathesmetalworking machine mechanisms
2,678,579May 18, 1954G.J. Kasselmann, H.J. SiekmannWithdrawal Device for Hydraulic Tracersmetalworking machine mechanisms
2,697,373Dec. 21, 1954N.D. Cooper, G.W. Luning, G.J. Kasselmann, H.J. SiekmannTracer Controlled Facing Lathemachine tool controls
2,728,254Dec. 27, 1955G.W. Luning, H.J. SiekmannTracer Controlled Lathe Structuremetal lathes
D177,350Apr. 03, 1956W. Okvit, G.J. Kasselmann, H.J. SiekmannSpeed Indicating Plate for Lathe Headstockengine lathes
D177,351Apr. 03, 1956W.A. Kimsey, R.M. Bacon, H.J. SiekmannEngine Latheengine lathes
2,746,613May 22, 1956H.J. Siekmann, W.R. MeyerWork Handling Appparatus for Machine Toolsmetalworking machine mechanisms
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