James Hamilton - Assigned Patents | VintageMachinery.org

Manufacturers Index - James Hamilton

James Hamilton
New York, NY, U.S.A.
Manufacturer Class: Wood Working Machinery

Patents

This page contains information on patents issued to this manufacturer.

Submitting Patent Information

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.

Patent Number	Date	Title	Name	City	Description
X7,560	Apr. 29, 1833	Making fellies	James Hamilton	New York, NY	This patented design was seen in 2006 in an 8-page catalog on eBay (asking price, $495). The catalog is from 1833 or 1834 and illustrates "Hamilton's sawing and boring machine, and Wiswell's spoke machine". The article quotes a writeup from a committee of the American Institute, which mentions that Hoe & Co. was manufacturing these machines for the New York market, and rights were available for other territories. The Hamilton machine sold for a whopping $350, and requires about 2 horsepower worth of water-power to run.
183,306,531	Dec. 20, 1833	Machinery for boring and manufacturing wood; applicable for various purposes	James Hamilton	, England	"JAMES HAMILTON, of Threadneedle Street, in the City of London, Civil Engineer, for certain improvements in machinery for sawing, boring, and manufacturing wood applicable to various purposes.â€”Sealed July 17th, 1834." See also US patent 7,560, which is for substantially the same invention. James Hamilton periodically moved between London and New York.
X8,931	Jun. 26, 1835	Felling trees	James Hamilton	New York, NY	This patent's drawing and specification were lost in a fire at the Patent Office. The July 1835 "New York Farmer, and American Gardener's Magazine" had an article on this invention (see link) and its illustration is shown here. The sawblade is labeled "D" and is on the far left.
77	Nov. 10, 1836	Machine for cutting veneers	James Hamilton	New York, NY	James Hamilton was an influential early designer and manufacturer of woodworking machinery. We do not have confirmation that he manufactured this veneer cutting machine, but we assume that he did.
1,652	Jun. 27, 1840	Pit-sawing and slitting machine for sawing logs into lumber and boards	James Hamilton	New York, NY
1,663	Jun. 27, 1840	Machine for sawing or cutting snags	James Hamilton	New York, NY	Invention is a saw to be mounted on a boat; it can be positioned to cut above or below the water, at any angle. The inventor received a possibly related patent for dredging: 8,840.
2,704	Jul. 02, 1842	Sawmill-gate for curvilinear sawing	James Hamilton	New York, NY	The patent drawing is unavailable.
3,053	Apr. 15, 1843	Machine for curvilinear and compound-bevel sawing	James Hamilton	New York, NY	Sawmill makes curved cuts by rolling the log during while being sawn. The 30 September 1848 issue of Scientific American carried an article about a British trial, Hamilton versus Cochran. It seems that James Hamilton sued John W. Cochran in Britain regarding patent infringement for this design: both inventors had secured British patents also. Judgement was in favor of Mr. Hamilton. For Cochran's design, see American patent 5,394.
3,342	Nov. 21, 1843	Sawmill for sawing timber with a direct or compound bevel	James Hamilton	New York, NY	This sawmill is designed to produce compound-curved timbers as needed in ship-building.
184,912,425	Jan. 18, 1849	Cutting wood	James Hamilton	, England	"To James Hamilton, of London, civil engineer, 'improvements in cutting wood.'â€”(Sealed) 17th January 1849."
185,013,264	Sep. 28, 1850	Machinery for sawing, cutting and shaping wood	James Hamilton	, England	"Mr. Hamilton describes and claimsâ€” "1. A combination of machinery applicable chiefly to sawing the head and other staves of casks. In this machine two blocks of wood are shown at the same time under the operation of a suitable number of saws, which are mounted in two saw-gates, those in the front gate entering the wood about two inches in advance of those in the back gate, and then diverging to the right to form one side of the stave; the saws in the back gate following the others in the same straight cut, and then diverging at the same point in the opposite direction to form the other side of the stave, and finally leaving the block in the same cut as those in the front gate. The machine is provided with templates, to guide the saws in cutting staves of the required shape. The number of saws may be varied, and, if desired, they may be made to enter and leave the wood simultaneously. "2. A combination of machinery for performing the operations technically called 'backing and hollowing' staves. This is effected by rotating concave and convex adzes or cutters. "3. A combination of machinery for boring the dowel-holes in the staves of casks. The principal features of this machine are the setting of the drills so as to be adjustable with regard to each other, and mounting them in a frame which may be set at an angle if desired. "4. A combination of machinery for giving staves the requisite shape and bevel. The circular saw, by which this is effected, is hung in the usual way, and the stave is placed on the bench at the required angle to give it the necessary bevel, and guide by hand to obtain the proper shape. "5. A combination of machinery for forming 'dowels' for casks. In this machine two cutters are employed, one to cut off a piece of wood of the requisite size, the other a circular hollow tool to finish the dowel. The first cutter is placed at a higher level than the finisher, and the severed piece of wood slides down an incline, and is forced against the second cutter by the continuous action of the machine."
8,840	Mar. 30, 1852	Dredging-machine	James Hamilton	New York, NY	See also patent 1,663.
8,872	Apr. 13, 1852	Mill for curvilinear sawing	James Hamilton	New York, NY	Improvements to patents granted to the inventor in 1842 (patent 2,704) and 1843. According to M. Powis Bale's book "Woodworking Machinery, Its Rise, Progress and Construction", "In the year 1854 Mr. James Hamilton, of New York, patented an arrangement of vertical saws especially adapted for cutting ships' timbers. A machine, made under this patent, was erected at the shipbuilding yard of Messr. Wigram and Son, Blackwall. The machine ran two saws, which cut both sides at once of any timber ordinarily used in shipbuilding. Each saw was hung in such a manner as to be free to turn on its centres, and present its cutting edge in any required direction; they were also arranged to move laterally in the saw frame. This movement was obtained by stretching each saw in a separate frame, which frame slided sideways within the principal frame. The sawyer controlled the position of both the saws by holding a lever or guide in either hand, and thus manipulated, each saw was made to follow the line on the timber to any desired curve or taper. The bevel of the timber was obtained by causing it to revolve somewhat as it was fed up to the saw, and the exact bevel necessary at every point was thus secured, and the timber left the saw sufficiently true to require little or no trimming."
8,873	Apr. 13, 1852	Machinery for making casks	James Hamilton	New York, NY
185,400,976	May. 01, 1854	Improvements in machinery for crushing quartz and other substances	James Hamilton	New York, NY
25,113	Aug. 16, 1859	Crosscut-sawing machine	James Hamilton	New York, NY
43,688	Aug. 02, 1864	Improvement in sawmills	James Hamilton	New York, NY