Bizarre Patents
An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 4417377 | Tool providing for the automatic exchange of different working fixtures Tool with automatic exchange of different working fixtures on a main holder of a machine tool, particularly adapted for digitally controlled coordinate machine tools, where the exchange, selection, and clamping of a required working fixture, stored in a s... | 11/29/1983 |
| 4412767 | Tool holder A tool holder for carrying a cutting tool is attached to a drive spindle. For purposes of making possible a rapid and easy exchange of the tool holder while at the same time there is required a small working space the tool holder is carried by an adapter,... | 11/01/1983 |
| 4407615 | Tool-clamping device A tool-clamping device for a hand tool machine with a rotary drive spindle includes a tool-clamping set having an outer sleeve mounted on an inner sleeve which serves to clamp a tool to be used and a locking plate which is pivotal relatively to a housing ... | 10/04/1983 |
| 4393626 | Toolholder for supporting thin rotary tools A toolholder for supporting thin rotary tools is disclosed, utilizing first and second tool rings having flange portions for respectively clamping and driving the sides of a rotary tool such as a thin grinding wheel, wherein the respective tool rings have... | 07/19/1983 |
| 4379667 | Chuck for machine tools A needle-roller type chuck for machine tools which includes a chuck body having a chuck barrel integral with the leading end portion of the chuck body. The chuck barrel has a leading end portion and an outer peripheral surface tapered to form a conical su... | 04/12/1983 |
| 4377292 | Chuck assembly and collet The chuck assembly and the collet for retaining an end mill tool against axial pullout. The collet includes a radially compressible body having a tapered outer surface, a central bore and a radial aperture extending from the outer surface into the central... | 03/22/1983 |
| 4350463 | Arrangement for mounting a cutter An arrangement and method for mounting a cutter body, especially a milling cutter, in which the cutter and power driven spindle have a common axis of rotation. An arbor shank is used to interconnect the cutter with the spindle with one end of the shank ma... | 09/21/1982 |
| 4339893 | Quick release hub assembly An improved hub assembly is utilized to rotatably mount a grinding wheel. The hub assembly includes a hub which engages a first major side surface of the grinding wheel. A circular clamp member is mounted on the hub by a plurality of fasteners. An annular... | 07/20/1982 |
| 4328975 | Quick-change mechanism for standard milling spindles An adaptor for securing a tool to a spindle includes a first member which can be secured to the spindle, and a second member attachable to the first member; the first and second members have through-going bores, respectively, for receiving the tool, and t... | 05/11/1982 |
| 4325664 | Cutting tool A cutting tool including a cutter and an arbor head. The cutter can be attached to and detached from the arbor head in an extremely simple manner without the need of removing the bolt.... | 04/20/1982 |
| 4322190 | Mounting device for machining tools A mounting device for machining tools, preferably milling cutters, which are secured to the mounting device (11, 30) by means of a connecting means (12). For making possible a rapid exchange of machining tools (10), such as milling cutters having differen... | 03/30/1982 |
| 4298208 | Spring actuated chuck A spring actuated chuck wherein a slotted flange, tapered shank tool adapter is clamped to a holder by a spring actuated clamping and ejecting nut assembly which includes a nut having threaded engagement with the holder, a clamping ring rotatably adjustab... | 11/03/1981 |
| 4290721 | Tool holder assembly for a portable power tool A toolholder assembly incorporated in a portable power tool having a housing and a drive disposed therein. The assembly includes a toolholder body, a first releasable securing arrangement for attaching the toolholder body to the drive for oscillating the ... | 09/22/1981 |
| 4269553 | Arbor assembly PCT No. PCT/US80/00137 Sec. 371 Date Feb. 11, 1980 Sec. 102(e) Date Feb. 11, 1980 PCT Filed Feb. 11, 1980 This invention relates to an arbor assembly (10) for attaching a cutting tool (14) to a machine spindle (12). Replacing large cutting tools on multip... | 05/26/1981 |
| 4266895 | High torque chuck assembly and collet A chuck assembly and collet for retaining a commercially-available large-diameter, high-torque end mill (or similar) tool against axial pullout and against radial (or rotational) movement with respect to the assembly. The tool includes two axially spaced ... | 05/12/1981 |
| 4257724 | Milling tool for machining cylindrical sections A milling tool for machining cylindrical sections of crankshafts comprises a rotatable tool drum adapted to be mounted so that it surrounds the workpiece and to be driven and which at one end carries an internally cutting, annular primary cutter head and ... | 03/24/1981 |
| 4257197 | Hub for mounting a rotary tool A hub is disclosed for mounting the spindle of a rotary tool, particularly a grinding or polishing wheel for ophthalmic lenses. The hub comprises a cylindrical bore and a plurality of radial centering arms arranged around the bore with their free ends lyi... | 03/24/1981 |
| 4244248 | Method and apparatus for setting up tools, work pieces and similar on a rotatable spindle The invention relates to a method and an apparatus for setting up tools, work pieces and similar (11, 12, 19) on a rotatable spindle (10) by means of a clamp bushing comprising a double walled sleeve (2, 3) which is closed at both ends and which has at on... | 01/13/1981 |
| 4242020 | Milling tool, especially gang cutter The present gang cutter for crankshaft milling machines comprises a plurality of disk cutters spaced from one another on a common, rotational axis by spacers which may be bearings. The gang cutter is divided into a plurality of partial units corresponding... | 12/30/1980 |
| 4229130 | Collets A collet for a threaded-end tool bit, seats a bit-engaging nut in its rear end portion. When the collet is clamped within a chuck, there is no radial interference between the nut and the collet body, thus permitting the gripping segments of the collet to ... | 10/21/1980 |
| 4204787 | Milling cutter A milling cutter is disclosed that comprises a rotatable adapter plate having a central protrusion on one side of the plate. A cutter ring, having recesses for mounting inserts therein, is provided with bayonet slots and a central opening so it can be fit... | 05/27/1980 |
| 4197044 | Chuck assembly and collet A chuck assembly and collet for retaining an end mill tool against axial pullout. The collet includes a radially compressible body having a tapered outer surface, a central bore and a radial aperture extending from the outer surface into the central bore.... | 04/08/1980 |
| 4137822 | Mandrel for receiving the tool in a hobbing machine or a similar machine A mandrel for receiving the tool of a tool machine which has cones on both ends thereof for centering the mandrel in a tool machine spindle. Securing structure is provided for securing the mandrel to the tool machine spindle so that rotational drive is pr... | 02/06/1979 |
| 4072084 | Graphite fiber reinforced structure for supporting machine tools Machine tools utilized in precision machine operations require tool support structures which exhibit minimal deflection, thermal expansion and vibration characteristics. The tool support structure of the present invention is a graphite fiber reinforced co... | 02/07/1978 |
| 4040765 | Reamer A reamer having a tool shank and a detachable reamer head in which the shank is provided at one end with means to be engaged by the spindle of a machine tool and at the other with a sleeve defining a conical socket and the reamer head has an integral coni... | 08/09/1977 |
| 4021051 | Chuck for machine tools There is disclosed a chuck adapted to be attached to the spindle of a machine tool, for gripping an intended tool, comprising a chuck barrel adapted to grip an intended tool and having a conical outer peripheral surface and not having slots extending alon... | 05/03/1977 |
| 3994061 | Machine tool with an automatic tool changer A machine tool is provided with a transfer arm for interchanging a first tool, inserted into a rotary spindle and positioned at a predetermined angular position, with another tool stored within a storage magazine, the spindle and each of the tools being r... | 11/30/1976 |
| 3962953 | Rotary tool holders A rotary tool holder of the type in which the tool has threaded engagement with a member projecting from a rotary body and the latter affords a forwardly directed radially extending locating face which engages a complementary face of the tool to locate th... | 06/15/1976 |
