W. T. Nicholson - Assigned Patents | VintageMachinery.org

Manufacturers Index - W. T. Nicholson

W. T. Nicholson
Providence, RI, U.S.A.
Company Website: http://www.nicholsontool.com
Manufacturer Class: Metal Working Machinery

Patents

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Patent Number	Date	Title	Name	City	Description
19,622	Mar. 16, 1858	Vise	Charles B. Clark	Oriskany Falls, NY	W. T. Nicholson was much better known as a file maker, but according to the book "A History of American Manufactures, from 1608 to 1860, Volume 2", he also made this patent vise. In the mid-1860s he incorporated as the Nicholson File Co., a firm that remains in business as of 2018.
42,217	Apr. 05, 1864	Improvement in File Cutting Machines	William T. Nicholson	Providence, RI	A rocking bed designed to move during the cutting of teeth. When there is any unevenness of the surface that would cause the chisel to cut deeper on one side than the other, the blow of the chisel causes the worm gear to turn and move the blank to ensure even teeth. Text references that this is an improvement of a portion of a file machine which he had applied for at the same time, Patent No. 42,216. Files produced by this machine are covered later under his Patent Nos. 44,443 and 58,025.
42,216	Apr. 05, 1864	Improvement in File Cutting Machines	William T. Nicholson	Providence, RI	A pawl and ratchet feeding mechanism with the bands operated by the revolution of the main shaft and a movable carriage. The moveable carriage is improved upon in his Patent No. 42,217. Files produced by this machine are covered later under his Patent Nos. 44,443 and 58,025.
44,443	Sep. 27, 1864	Improved File for Dressing Metal	William T. Nicholson	Providence, RI	File pattern where the ranges of teeth are separated by lands which vary from each other in width by a fixed and regular ratio of either increasing or decreasing. This pattern of file is claimed to overcome the shortcomings of machine cut files (coarser near the end than the middle of the file as well as parallel furrows which causes a fluted surface) and hand cut files (wavy parallelism). This file is produced by his file cutting machine 42,216 and rocking bed patent 42,217.
45,850	Jan. 10, 1865	Improved Machine for Forging File Blanks	William T. Nicholson	Providence, RI	Swage forming of file blanks to a consistant shape for machine cut files. Although the text makes no mention of his file machine patents, 42,216 and 42,217, it is assumed that this was a natural development in support of his machine cut file operations.
58,025	Sep. 11, 1866	Improvement in Files	William T. Nicholson	Providence, RI	Machine manufacture of for round or semi-round files with the teeth distinctly formed as when cut by hand but with the rows arranged in wave lines to prevent the file from naturally rotating in use by following the furrows. This patent references his Patent Nos. 42,216 and 42,217 as appropriate methods and tools to produce this file.
78,681	Jun. 09, 1868	Improved Machine for Cutting Files	William T. Nicholson	Providence, RI	"Claim is for a file cutting machine with a "rolling bed," whose longitudinal axis is set angularly with the line of motion of the carriage, or the cutting chisel if the former be stationary and the latter movable, in combination with such cutting chisel." References functions of John Crum's 1 Jul 1851 patent 8,199 as well as Nicholson's patents of 5 Apr 1864 42,216 and 42,217.
94,503	Sep. 07, 1869	Improvement in Rasps	William T. Nicholson	Providence, RI	The cutting edge of each tooth is curved in two directions with the metal raised by the chisel a convex outer surface to provide a shearing cut.
177,071	May. 09, 1876	Machines for Stripping File-Blanks	William T. Nicholson	Providence, Providence County, RI	The invention described in this application is one of several improvements in machines used for the purpose of stripping or draw-filing file-blanks, for the several divisions of which invention I have made three other applications for Letters Patent, all of even date herewith. This part of my invention consists, first, in an improved arrangement by which reciprocation is imparted to the file-blank, and a movement given to it which approximates in its figure to the figure 8; second, in the arrangement by which an elastic, yielding, and self adjusting support is given to the file or tool, which effects the stripping; third, in the construction of the file-blank bed, by which the file-blank is enabled to adjust itself to the face of the stripping-file; fourth, in a peculiar arrangement by which the file-blank is held in contact with the stripping-file, which contact is partially relieved when the blank passes backward from under the same.
177,070	May. 09, 1876	Improvement in Files	William T. Nicholson	Providence, RI	Improvement on Nicholson's Sept. 27, 1864 patent (no. 44,443). Each grouping of teeth has overall wider or narrower spacing than the adjacent grouping. The specifications mention parallel patents for the machinery to produce these files. Patents 177,071 through 177,074 relate to preparing the blank, and 177,075 describes the machine that cuts the file.
177,072	May. 09, 1876	Machines for Stripping File-Blanks	William T. Nicholson	Providence, Providence County, RI
177,073	May. 09, 1876	Machines for Stripping File-Blanks	William T. Nicholson	Providence, Providence County, RI
177,074	May. 09, 1876	Machines for Stripping File-Blanks	William T. Nicholson	Providence, Providence County, RI
177,075	May. 09, 1876	Machines for Cutting Files	William T. Nicholson	Providence, Providence County, RI
191,811	Jun. 12, 1877	Improvement in File Holders	William T. Nicholson	Providence, RI	File holder that allows the file to be sprung or bent which is preferred on large surfaces and the convex surface also makes the file less likely to clog or glaze.
198,668	Dec. 25, 1877	Improvement in Butchers' Steels	William T. Nicholson	Providence, RI	A butcher's steel with two opposite abrasive surfaces and two opposite smooth polishing or finishing surfaces.
198,777	Jan. 01, 1878	File Handle	William T. Nicholson	Providence, RI	Handle with tapered socket, three or four radial slots, and "elastic compress" to hold file tangs, or double-taper square or triangular files -- the corners of the files or tangs entering the slots. One known example (found in spring 2018) has lost the "elastic compress" and shows three radial slots.
200,218	Feb. 12, 1878	File Cleaner	William T. Nicholson	Providence, RI	My invention consists, mainly, in a file cleaner provided with a bristle-clad surface on one side, a wire-toothed surface on the other side, a scoring-awl, and a convenient handle. It further consists in a file cleaner provided with a scoring-awl, which is housed and secured by a spring in the body of the cleaner, for affording a convenient and ready means, whereby on occasion such scores or cuts in a file as cannot be opened by the cleaner brushes may be thoroughly plowed or scored.
204,596	Jun. 04, 1878	Improvement in File Holders	William T. Nicholson	Providence, RI	Holder for a "stub-file" or a "riffler" file that reduces the need for a large number of files with different handles for different applications. Holder uses a pair of expanding jaws and a screw clamp.