Bizarre Patents
A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 7260877 | Boring and turning mill A boring and turning mill, comprising a nonrotatable tool ram, a rotationally drivable tool spindle in the tool ram, an auxiliary head which can be attached to the tool ram in a nonrotatable manner, two work slides arranged in opposition to each other and displaceab... | 08/28/2007 |
| 7241086 | Apparatus for machining pipe ends, especially for cutting connecting threads A thread cutter for pipe ends has a tool head rotating coaxially with respect to a fixedly clamped pipe end and provided at tool holders in the form of radial sliders. Actuators which are parallel to the rotation axis are mounted on a frame shiftable with respect to... | 07/10/2007 |
| 7179024 | Tool with deployable cutting blade A tool having a deployable cutting blade for making an undercut in a substrate is disclosed. The tool has a chamber positioned between its cutting tip and its tang. The cutting blade is movably mounted within the chamber. The blade is movable by sliding, pivoting or... | 02/20/2007 |
| 7172373 | Deburring tool with quick change knife The invention relates to a deburring tool with a quick change knife, which is formed by at least two parts, namely a guide sleeve having a larger diameter and a center bore, and a base body that can be inserted in the center bore in an axial direction. The base body... | 02/06/2007 |
| 7172374 | Backspot facing tool A backspot facing tool includes a shaft and a cutting element. The shaft has a first and second ends and a recess located near the first end. The shaft also includes an outer circumference and is centered on a first axis. The cutting element has an inner portion and... | 02/06/2007 |
| 7048482 | Boring head with tool advance independent of rotation The transmission of the rotational movement to the driving pinion of the carriage is provided by: a first gear train with a cage mounted so that it can rotate about the axial shaft and the crown wheel of which meshes with a pinion ... | 05/23/2006 |
| 6354772 | Cutting tool A cutting tool having a shank held in a chuck. Mounted in the shank is an insert holder and a carbide insert held therein. The insert holder extends radially beyond the shank, with the insert on its extended end. The insert can be adjusted as to radial ex... | 03/12/2002 |
| 6050159 | Facing head with rotary slide A facing head includes a housing with a center axis and a rotary slide with a rotation axis offset from the housing center axis. At least one cutter plate is provided on the rotary slide and rotatable therewith. A centrifugal drive is located in the housi... | 04/18/2000 |
| 5759000 | Generating head assembly with generating head and rotary power actuator A generating head assembly for cutting or machining a surface on a workpiece and including a generating head mounted for relative rotation with the workpiece and with cutting or machining members having a radially advanced cutting or machining position fo... | 06/02/1998 |
| 5651645 | Generating head assembly with generating head and rotary power actuator A generating head assembly for cutting or machining a surface on a workpiece and including a generating head mounted for relative rotation with the workpiece and with cutting or machining members having a radially advanced cutting or machining position fo... | 07/29/1997 |
| 5251511 | Tool head for use in machine tools The invention concerns an adjustable tool for use in machine tools, with a slide (14) which can be fitted with at least one cutting tool and which can be displaced relative to the rotating main body (10) perpendicularly to the axis of rotation. The invent... | 10/12/1993 |
| 4981401 | Boring bar with tool holder stations and control for same A boring bar having multiple tool stations spaced therealong. A tool holder is carried at a tool station within a bar mounted bushing. A pinion gear on the bushing is in threaded engagement with the tool holder for moving same. A channel along the bar rec... | 01/01/1991 |
| 4729699 | Device for performing spot-facings, in particular at the non-accessible end of through-holes The device comprises a body longitudinally provided with a stem which is suitable for being inserted into the hole of a part being machined. On the body an element is slideably coupled which has an element for attachment to the mandrel of the machine tool... | 03/08/1988 |
| 4577535 | Contouring machine with radial slide head A two axis numerically controlled contour boring machine adapted for interior and exterior machining operations such as boring, facing, grooving, turning and back-facing. The machine comprises a headstock slidably driven along a first axis by a feed motor... | 03/25/1986 |
| 4516889 | Precision adjustable cutting tool A tool is disclosed that offers precision fine adjustment of a cutting tool bit on the tool, having an opening provided with a conical seat, an internally-threaded tool adjustment cartridge having a conical surface engageable with the conical seat, an ext... | 05/14/1985 |
| 4514121 | Chamfering apparatus Chamfering apparatus for simultaneously chamfering the I.D. and O.D. of tubular members including an internal cutter for chamfering the I.D. and an external cutter for simultaneously chamfering the O.D., the internal and external cutters being mounted sel... | 04/30/1985 |
| 4512116 | Feed-up means for expandable work engaging members An improved drive chain for a machine tool such as honing device comprising a machine tool with at least one radially movable work engaging assembly thereon, a power train operatively connected to the honing device to rotate same, and a feed motor positio... | 04/23/1985 |
| 4369007 | Fly cutter tool An adjustable fly cutter tool for cutting and forming blanks of metal, wood, plastic, glass, etc. The tool can be used on a conventional lathe or milling machine, and enables the operator to continuously change the depth of the cut into the blank without ... | 01/18/1983 |
| 4275624 | Internal adjustable grooving bar A grooving bar is provided for machining grooves on the inside surface of a casting or the like, such as the split casing for a pump. The grooving bar of the present invention can be inserted into a casing, adjusted for a precision cut and moved from one ... | 06/30/1981 |
