If you find a patent number or patent date by this manufacturer that is not on this
list, please contact the Site Historian.
Key to Links for Patent Information
USPTO = U.S. Patent Office .
Images of the actual patent can be viewed on the U.S. Patent Office web site but
a special TIFF viewer must be installed with your browser in order properly work.
More information on how to configure your computer to view these patents can be
found at TIFF image Viewers
for Patent Images.
DATAMP = Directory of American Tool And
Machinery Patents . A sister site to VintageMachinery.org with information
on patents related to machinery and tools. A much easier user interface than the
USPTO's for finding information on machinery patents.
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1,748,556
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Feb. 25, 1930
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Boring machine
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Elliott John McKnight |
Gardner, MA |
The invention is a multi-spindle drill where the spindles can be angularly and horizontally adjusted, in contrast to the usual arrangement where only the table is angularly adjustable. It uses direct-drive motors to power the drills.
The machine has been seen in an L. G. McKnight & Son Co. catalog, as the No. 5 "direct motor driven chair seat boring machine". |
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1,852,586
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Apr. 05, 1932
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Clamp
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Elliott John McKnight |
Gardner, MA |
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1,858,677
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May. 17, 1932
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Multiple spindle boring machine
|
Elliott John McKnight |
Gardner, MA |
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