Colburn Machine Tool Co. - Assigned Patents

Manufacturers Index - Colburn Machine Tool Co.

Colburn Machine Tool Co.
Franklin, PA; Cleveland, OH, U.S.A.
Manufacturer Class: Wood Working Machinery & Metal Working Machinery

Patents

This page contains information on patents issued to this manufacturer.

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Patent Number	Date	Title	Name	City	Description
277,545	May. 15, 1883	School-desk	Henry J. Colburn	Toledo, OH
477,737	Jun. 28, 1892	Slotting Machine	Leslie H. Colburn	Toledo, OH	My invention relates to improvements in slotting-machines, which have a vertically operating reciprocating cutter for making the slot. The objects of my invention are, first, to afford facilities for making a perfectly-straight cut in the metal to be operated upon, and this is accomplished by affording improved facilities for supporting the cutter-bar; second, to construct a machine that can be used on articles having a great range in their external diameters, and upon articles such as pulleys and gearing, where their arms and rims are in the way of connecting mechanism for supporting the opposite extremities of the cutter-bar; third, to provide improved mechanism for regulating the length, depth, and taper of the cut to be taken; fourth, to provide a device for radially locating the slot in the bore of the work to be operated upon.
545,153	Aug. 27, 1895	Safe	Henry J. Colburn	Toledo, OH	Of interest because the inventor also manufactured woodworking machinery and machine tools. "My invention relates to burglar-proof safes, particularly that class which are carried on trains between leading stations and are especially exposed to danger and plunder from train robbers, who, having held up the train and intimidated the guardians of the treasure, gain complete access to the exterior of the safe and all point, rendering it only a question of time to enter the same as it is now generally constructed."
545,154	Aug. 27, 1895	Safe	Henry J. Colburn	Toledo, OH	Of interest because the inventor also manufactured woodworking machinery and machine tools. "My invention relates to burglar-proof safes, particularly that class which are carried on trains between leading stations and are especially exposed to danger and plunder from train robbers, who, having held up the train and intimidated the guardians of the treasure, gain complete access to the exterior of the safe and all point, rendering it only a question of time to enter the same as it is now generally constructed."
568,429	Sep. 29, 1896	Safe	Henry J. Colburn	Toledo, OH
576,074	Jan. 26, 1897	Glass-blowing machine	Henry J. Colburn	Toledo, OH	Improvements to Owens' patent 548,588.
		Glass-blowing machine	Michael J. Owens	Toledo, OH
584,755	Jun. 15, 1897	Glass-blowing machine	Henry J. Colburn	Toledo, OH
599,054	Feb. 15, 1898	Machine for Cutting Slots	Leslie H. Colburn	Toledo, Lucas County, OH	My invention relates to an improved machine for cutting slots of various shapes and sizes, principally in articles where the cut must be made internally, such as cutting key-ways in pulley-hubs, forming the teeth of internal gears, and performing other analogous operations and is especially designed as an improvement upon a slotting-machine for which United States Letters Patent were granted to me June 28, 1892, and numbered 477,737. The present invention has for its objects, first, a novel arrangement and construction of the lower guide-bar; second, an improved construction of the upper arm for supporting the cutter-bar; third, an improved method of supporting the back of the cutter-bar and cutter, the table being in any desired angular position and the said support being accurately maintained adjacent to the top surface of the table automatically; fourth, to provide means for accurately centering the work upon the table; fifth, to provide, in combination with other features, mechanism for moving the work to be operated upon in a lateral, transverse, and circular direction; sixth, to provide means for securing an angular adjusting-table in a fixed position with respect to the cutter-bar.
599,551	Feb. 22, 1898	Upright Boring and Turning Machine	Leslie H. Colburn	Toledo, OH
707,675	Aug. 26, 1902	Circular sawing machine	Henry J. Colburn	Toledo, OH	Inventor was deceased at the time the patent was issued. The administrators of the deceased were Eliza A. Colburn and Irving W. Colburn. Irving was an inventor of electrical dynamos and lamps. In the 1880s he operated I. W. Colburn & Co. of Fitchburg, which by the 1890s was operating as Colburn Electric Mfg. Co.
742,291	Oct. 27, 1903	Upright Tapping and Boring Machine	Leslie H. Colburn	Franklin, Venango County, PA
748,844	Jan. 05, 1904	Slotting Machine	Leslie H. Colburn	Franklin, Venango County, PA
755,849	Mar. 29, 1904	Vertical Shaper	Leslie H. Colburn	Franklin, Venango County, PA
892,107	Jun. 30, 1908	Change Speed Gear	George R. Willis	Franklin, Venango County, PA
1,017,635	Feb. 13, 1912	Automatic Tripping Device for the Feed Mechanism of Machine Tools	Leslie H. Colburn	Franklin, Venango County, PA
1,044,990	Nov. 19, 1912	Currency Cutting Machine	Leslie H. Cloburn	Franklin, Venango County, PA
		Currency Cutting Machine	Frederick F. Clarke	Franklin, Venango County, PA
1,068,324	Jul. 22, 1913	Compound Table for Drill Presses	Leslie H. Colburn	Franklin, Venango County, PA
1,115,659	Nov. 03, 1914	Drill Press	Albert A. Geck	Franklin, Venango County, PA
1,167,887	Jan. 11, 1916	Drill-press	Frederick F. Clarke	Franklin, PA	This geared drill press is designed so that it can be equipped with gearing only for the speed(s) required, which will reduce costs in a machine intended for manufacturing use.
1,185,060	May. 30, 1916	Spring Counterbalance for the Rams of Boring Mills	Frederick F. Clarke	Franklin, Venango County, PA
1,185,061	May. 30, 1916	Lubricating System for the Spindle and Table Drive for Vertical Boring and Turning Mills	Frederick F. Clarke	Franklin, Venango County, PA
1,185,064	May. 30, 1916	Clutch Gearing for Machine Tools	Frederick F. Clarke	Franklin, Venango County, PA
1,188,043	Jun. 20, 1916	Stop Index System for Boring Mills	Frederick F. Clarke	Franklin, Venango County, PA
1,262,192	Apr. 09, 1918	Method of Producing Gears	Ernest C. Head	Franklin, Venango County, PA
1,351,504	Aug. 31, 1920	Center Indicating Device	Frederick F. Clarke	Franklin, Venango County, PA