Manufacturers Index - John A. White Co.
John A. White Co.
Concord, NH; Dover, NH, U.S.A.
Manufacturer Class:
Wood Working Machinery
This page contains information on patents issued to this manufacturer.
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USPTO = U.S. Patent Office .
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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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136,979
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Mar. 18, 1873
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Improvement in circular-saw benches
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Benjamin F. Dunklee |
Concord, NH |
A double-arbor tablesaw where the two saws can be raised either together or separately. |
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151,217
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May. 26, 1874
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Improvement in band sawing machines
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Edward F. Gordon |
Concord, NH |
The invention is an improved mounting of the journal box for the upper wheel; the mounting provides a larger bearing surface.
An example of this bandsaw had two labels cast into it: one with "D. C. Allen & Co., Concord, N.H.", and the other with "Granite State" and the patent date. Granite State is a model name that was also used by Dunklee & Allen, Concord Machine Works, and John A. White Co., all for bandsaws of the Gordon design, with evolutionary improvements. |
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221,804
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Nov. 18, 1879
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Improvement in gages for circular sawing machines
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Edward F. Gordon |
Concord, NH |
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221,805
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Nov. 18, 1879
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Improvement in adjustments of planing-machine tables
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Edward F. Gordon |
Concord, NH |
This is a simple and ingenious mechanism for adjusting a jointer infeed table. The underside of the table has four "bearing plates" that support the table. These four plates are identical and have a convex (circular) underside. Each of those convex surfaces rests on a cylindrical rod fixed to the jointer base. The table is adjusted by a screw that moves the table horizontally toward or away from the cutterhead. As the table moves away from the cutterhead it also lowers because of the shapes of the bearing plates and their cylindrical supports. |
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227,517
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May. 11, 1880
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Steam-radiator
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Edward F. Gordon |
Concord, NH |
Inventor and assignee were co-owners of Hobbs, Gordon & Co. Gordon was an important woodworking machinery inventor who worked for a series of companies, including the John A. White Co. |
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249,337
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Nov. 08, 1881
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Feeding device for wood-planing machines
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Edward F. Gordon |
Concord, NH |
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291,645
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Jan. 08, 1884
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Crank adjustment mechanism for balance-wheels
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James B. Thurston |
Concord, NH |
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350,872
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Oct. 12, 1886
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Tenoning-machine
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Abe L. Cushman |
Concord, NH |
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