Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 4646473 | Method and apparatus for finishing surfaces Workpieces having three-dimensional surfaces can be efficiently sanded by rotatable sanding members mounted on spindles which are supported for movement in a circle of revolution over the surfaces of the workpieces as the individual spindles are selective... | 03/03/1987 |
| 4617762 | Cam controlled machine for forming non-standard surfaces A cam controlled grinding machine in one embodiment of which the spindle is supported for rotation and lateral movement within a nest of three annular rings. Advantageously, roller bearing arrays between the spindle and the first annular ring, the first a... | 10/21/1986 |
| 4615146 | Smoothing machine for wood panels A smoothing machine for wood panels, particularly wood panels having contoured surfaces with parts in relief, includes a substantially horizontal conveyor belt, a support structure overlying the belt, and a plurality of smoothing units carried by the stru... | 10/07/1986 |
| 4601133 | Manipulator head with grinding device for pipes or pipelines A manipulator head for the remote-controlled positioning and operation of a grinding device within a pipe, which includes two support flanges having clamping devices and guide elements for extending the manipulator head; a frame rotatably mounted in the s... | 07/22/1986 |
| 4541204 | Apparatus for manufacturing substantially spherical objects to a high degree of roundness An apparatus for machining spherical objects to a high degree of roundness. The apparatus includes rotating a work piece about a first axis and concurrently rotating a grinding device about a second axis perpendicular to the first axis to engage the work ... | 09/17/1985 |
| 4494280 | Method and machine tool for a circular machining of eccentric shaft portions When it is desired to machine crankpins of crankshafts to a circular cross section with a surrounding cutting tool, which is rotated or oscillated, the tool is longitudinally positioned relative to the crankpin and machines the same while engaging the cra... | 01/22/1985 |
| 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 |
| 4467567 | Method of crown grinding gears having lengthwise curved teeth A method for crown grinding of gear teeth having lengthwise curved teeth and a grinding head for the performance of the method, wherein there are ground the outer and inner flanks by means of rotatable, individually driven grinding elements or bodies, whi... | 08/28/1984 |
| 4427324 | Method of shape generation by orbiting a rotating hob A method for generating a shape on the periphery of a non-rotating workpiece by orbiting a rotating hob in cutting engagement with the workpiece while moving the hob and workpiece relatively lengthwise of the workpiece.... | 01/24/1984 |
| 4419847 | Device for supporting and moving a tool within a tapping A supporting and centering arrangement in the form of a star the arms of which are radial with respect to a tapping to be machined or checked. These arms have elements for centering and fastening them to the tapped wall, as well as a centering element at ... | 12/13/1983 |
| 4361987 | Apparatus for high tolerance polishing of a work-piece surface A method for polishing a workpiece comprising the steps of providing a polishing element formed of a volume of abrasive containing resilient material and causing the polishing element to move rapidly against a workpiece surface under pressure. Apparatus f... | 12/07/1982 |
| 4346534 | Apparatus for honing cycloidal surfaces An apparatus for abrading and finishing the inner surface of an unusual shape, for example the inner ring of a gerotor device, with a tool holder adapted to carry honing stones for movement along the part surface and driven by a mating part engaging a sta... | 08/31/1982 |
| 4219973 | Grinding machine for chamfering workpiece end surfaces The invention relates to a grinding machine for chamfering workpiece end surfaces and renders possible a high-capacity machine, which removes material from the workpiece end surfaces only to an amount necessary for obtaining a product acceptable for conti... | 09/02/1980 |
| 4218800 | Planetary grinder and polisher A machine particularly useful for continuously descaling wire and finishing tubular products. The basic machine incorporates a heavy, circular planetary mounting plate having a pair of independently driven finishing brush wheels, mounted thereon which rot... | 08/26/1980 |
| 4143489 | Mould polishing machines A polishing machine comprises a vertically movable surface on which is mounted a driving motor for rotating a support supporting on an axis of oscillation the gearbox an electric motor associated with an eccentric means urging the said motor to pivot on t... | 03/13/1979 |
| 4125057 | Planetary milling machine Motor driven milling and boring machine used primarily for forming screw threads of any selected pitch, external to cylindrical or conic projection or within similar-shaped bore of workpiece, particularly workpieces such as are too large or irregular-shap... | 11/14/1978 |
| 4091713 | Radius milling or grinding tool actuator or controller A tool controlling apparatus for rotating a tool through a circular path of adjustable radius wherein a first plate member is caused to move in a first direction and second plate member is caused to move with said first plate member and in a direction per... | 05/30/1978 |
| 4045837 | Machine for polishing rods or wires The machine comprises in combination a fixed frame and a hollow tubular element rotatable in the frame. The rod to be polished extends axially through the tubular element. A pressure-applying device actuated by centrifugal force and pivoted to the tubular... | 09/06/1977 |
| 4033075 | Mechanism for adjustably positioning planetary machining elements A planetary machining apparatus comprises a rotor and one or more drive spindle assemblies mounted thereon. Each drive spindle assembly includes a rotary spindle support mounted for rotation on the rotor about an axis parallel to and radially spaced from ... | 07/05/1977 |
| 4015370 | Machine for grinding of peripheral surfaces on work pieces A machine for grinding of peripheral surfaces on workpieces, particularly, screw driver blades, comprising at least one grinding disc or abrasive belt contact disc, respectively, arranged on a rotating carrier which is driven in a predetermined transmissi... | 04/05/1977 |
| 4000552 | Hydraulic hose skiving machine A machine for preparing hydraulic or any other type of hose to receive metallic couplings. Hose in desired inches or feet of length cut from a longer supply may be skived on an end to prepare the hose to receive a coupling crimped on to the hose. The exte... | 01/04/1977 |
| 3976815 | Method for cleaning and coating rod An apparatus and method for continuously cleaning and coating wire is disclosed in which rod having scale and other inpurities on its outer surface is first mechanically descaled by passage through a plurality of spatially positioned rollers, then cleaned... | 08/24/1976 |
| 3955325 | Abrading apparatus for the housing of a rotary engine An abrading apparatus for the housing of a rotary engine formed therein a cavity in which a rotor piston is adapted to revolve while being maintained in sliding contact with the inner peripheral wall of the housing. The abrading apparatus comprises rotata... | 05/11/1976 |
