Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 6135174 | Lathe cutter and chip fan A lathe cutter and chip fan is described in which an annular frame includes a rotary portion that is driven to rotate about an axis. The rotary portion is annular, forming a workpiece receiving opening. A cutter is mounted on the rotary portion and projec... | 10/24/2000 |
| 6039094 | Log turning machine guides A log turning machine is described in which a support frame mounts a rotary cutter with a log receiving opening positioned to receive an elongated log workpiece that is moved relative to the support frame in a forward direction of travel along an axis. Th... | 03/21/2000 |
| 5722475 | Method and device for dressing logs An apparatus and method for machining the surface of logs, in which the log is longitudinally advanced through an opening provided in a rotor disc and the surface of the log is machined by rotatable cutting heads mounted on respective supporting arms pivo... | 03/03/1998 |
| 5645117 | Tompkins turner A turner holds a wood blank while positioning it adjacent a cutting bit of a router to cut the blank into a shaped cylindrical object. The turner includes a mandrel and two mandrel wheels attachable to ends of the mandrel, which each have finger gripping ... | 07/08/1997 |
| 5025842 | Fence rail and method and apparatus of manufacturing the same A machine for milling fence rails and the like having a pair of opposed milling units, each having a cutter head with a conically shaped inner surface, cutting knives arranged to taper material inserted into the heads to the shape of the inner surface and... | 06/25/1991 |
| 4770215 | Wood bar rounding machine with two or more cutting and sanding units A wood bar rounding machine which has two or more cutting and sanding units arranged concentrically so that a rectangular timber can be rounded and polished to a desired size. The desired product in a high quality can be obtained by a series of sequential... | 09/13/1988 |
| 4651790 | Machining elongate rods A device for machining elongate rods has a feed means defined by a track and a plurality of V belts which feeds the rods in an uninterrupted succession one behind the other in a feed direction transverse to their longitudinal axes. The track defines a an ... | 03/24/1987 |
| 4630660 | Dowell making A dowell making machine which has a central hollow shaft which is adapted for rotation on connection to a driving means and has associated therewith an end plate which is co-axial with the shaft and adapted to rotate therewith, the end plate having a cent... | 12/23/1986 |
| 4562873 | Method of and arrangement for milling root butts of round timber For milling root butts on round timber, a trunk is clamped at a predetermined location and non-rotatable, a milling shaft with a milling tool is brought into abutment against the trunk, the milling tool mills in the trunk butt in the abutment region to a ... | 01/07/1986 |
| 4554958 | Apparatus for rounding the circumference of a log An apparatus for rounding the circumference of a wood log which is supported by two sets of three drive rollers at spaced points between the ends of the log to establish a geometrical center. A knife is positioned extending the length of the log for cutti... | 11/26/1985 |
| 4553575 | Dowel cutter and sizer A dowel cutting method and apparatus comprising a stationary cutting tool having an internal bore and at least one cutting edge at its input end into which woodstock is disposed while being rotated by an electric hand drill or the like to create a finishe... | 11/19/1985 |
| 4549586 | Device for shaving wood with cylinder saws With a cylinder saw arranged rotatably in a machine frame, only circular profiles are sawed out of boards and beams. This cylinder saw possesses a toothed arrangement, at least on the front side, and is rotatably supported by support and guide rollers in ... | 10/29/1985 |
| 4519429 | Log shaper A machine for forming a smooth surface on a cylindrical log workpiece as it is moved longitudinally past a cutting station which includes both shaping and planing blades. The same cutting pass also includes a cove cutting operation to cut a longitudinal c... | 05/28/1985 |
| 4497352 | Adjustable violin peg and dowel shaving device An adjustable Violin Peg and Dowel Shaving Device capable of shaving a tapered or non-tapered peg or dowel from a size substantially that of a full size cello peg down to almost the size of a toothpick with only one adjustment. The device comprises two gu... | 02/05/1985 |
| 4470225 | Variable position orbital sander A machine which orbits an abrader or cleaning tool about a fixed axis at a relatively low speed in which the orbital radius of the abrader may be changed while the machine is in operation.... | 09/11/1984 |
| 4467848 | Machine for cutting down logs to a desired diameter A log shaping machine for cutting logs to a desired diameter and for cutting off root outgrowths, has a cutting ring with inwardly pointing tools which rotate with the ring. For the purpose of changing the effective cutting diameter of the tools the ring ... | 08/28/1984 |
| 4378035 | Machine to prepare logs for log houses A machine for processing wood logs for construction of log houses. The machine includes means to load raw logs into a self-centering means, whereby a carriage assembly can be centered over the logs and the log is mounted in the carriage on powered centers... | 03/29/1983 |
| 4371018 | Device for repairing poles for supporting electric power transmission lines and the like A method and apparatus for lengthening or shortening a pole supporting lines, such as electric power and telephone lines. The method includes the providing of a stub adapted to be joined in abutting end-to-end relationship with the lower end of the pole t... | 02/01/1983 |
| 4363342 | Log milling apparatus In a milling apparatus for removing root swellings from timber logs the log is received on two spaced apart supports with the butt-end of the logs freely overhanging from the supports. A holder-on urges the log against the supports. The holder-on as well ... | 12/14/1982 |
| 4303111 | Log forming machine A device that forms smooth cylindrical surfaces along a log being moved longitudinally past a cutting station. The device includes a feed conveyor that moves successive logs longitudinally past a cutting station. A planetary cutting head drive is situated... | 12/01/1981 |
