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"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 7264426 | Apparatus and methods for servo-controlled manufacturing operations Apparatus and methods for servo-controlled manufacturing operations are disclosed. In one embodiment, an apparatus includes a base member, a drive platform spaced apart from the base member by a separation distance, and a plurality of guide members extending between... | 09/04/2007 |
| 7143490 | Tap process for hard workpieces A process and apparatus for producing screw threads in hard material workpieces with a series of taps. The present invention employs a threaded bore formed in a bracket assembly to align and position multiple taps on a rotary machine. The taps are used in sequence t... | 12/05/2006 |
| 7140813 | Line boring machine An up modifier is provided which includes a bed, a modifier, a clamp, a modifier linkage system, a clamp linkage system, and a lever. The modifier is disposed below the bed and is vertically traversable thereunder. The clamp is disposed above the bed and is vertical... | 11/28/2006 |
| 7128506 | Toolhead for multi-axis machine tools A toolhead intended for a multi-axis machine tool incorporates a tool-holder rotatable about the tool axis and attached to the spindle of a spindlehead, also a stop cage element mounted slidably to the tool-holder, which is furnished with a collar presenting an acti... | 10/31/2006 |
| 7114891 | Thread forming tool with annular ridge A thread forming tool includes an elongated body defining a longitudinal center axis. The body including a thread forming portion formed by one or more annular ridges oriented perpendicular to the axis. The body has a non-circular shape in a cross sectional plane or... | 10/03/2006 |
| 7112019 | Pneumatic spindle with means to direct the bearing air towards the tool-holding collet A spindle (1) in which the moving part (2) fixed to the tool-holding collet (3) is supported by one or more aerostatic bushes (4) on cushions of air generated by a jet of compressed air that circulates continuously along the air gaps (... | 09/26/2006 |
| 7052216 | Work saver for an electric drill A T-bracket having a pair of spaced apart arms support a housing containing a sprocket wheel and a shaft to turn the sprocket. A handle attached to one end of the shaft turns the sprocket to tighten a chain turning on the sprocket teeth. A flexible wire rod is welde... | 05/30/2006 |
| 7025542 | Guide device for workpiece machining head, machine having the same, and guide method There is provided a guide device for a machining head capable of machining a workpiece such as a cylinder head of an engine accurately, a machine having the guide device, and a guide method. At least one of guide posts formed in a guide post member has an air pressu... | 04/11/2006 |
| 7020942 | Portable boring and welding machine A portable boring and welding machine includes a tool shaft adapted to mount tools for boring and welding workpieces. The shaft extends along an axis and is driven by an electric motor. The motor and the shaft are connected by a helical gearwheel and worm pair, the ... | 04/04/2006 |
| 6751874 | Hand tool for punching holes in a range of plastic irrigartion pipes A cutting tool for forming holes in plastic piping primarily intended for use in holing irrigation pipes for drips and sprinklers ranging from holes with diameter of 2-4 mm. The tool comprises of a blade element made of steel, preferably hardened and provided with a... | 06/22/2004 |
| 6595728 | Rigid and fragile material drilling machine A rigid and fragile material drilling machine is provided, its driving means for driving the upper and lower drilling bit approximating the rigid and fragile material includes a control handle; upper and lower rear gears and associated upper and lower fir... | 07/22/2003 |
| 6585462 | Device in a tool holding assembly for moving a rotatable shaft in the axial direction A device in a tool holding assembly for axially moving a rotatable shaft on which is arranged at a first end of the shaft a device for performing work during rotation of the shaft includes an electric motor for rotating the shaft, and at least one bearing... | 07/01/2003 |
| 6551034 | Drilling apparatus for tapping into a fluid containing vessel A drilling apparatus for tapping into a fluid containing vessel from a valve device connected with the vessel. The apparatus is comprised of a housing having a lower end adapted for attachment of the apparatus to the valve device, the housing defining a h... | 04/22/2003 |
| 6506001 | Radial drilling device for a lathe A radial drilling device (1) for a lathe (5) for radially piercing a turning part (4) supported by the lathe. At least one drill bit (2b) is supported by a mobile drilling jaw (3a, 3b) in a transverse orthogonal plane to the axis of rotation of the part (... | 01/14/2003 |
| 6494650 | Leverage accessory for power drills A leverage accessory for hand-held power drills comprises a lever (10) having a handle (14) at one end and a sharp pointed tip (12) at the other end for plunging (10W) into sheathing (16) attached to the stud or joist (24) being drilled. An instantly repo... | 12/17/2002 |
| 6447220 | Portable boring/facing machine A portable boring/facing machine having a rotatable boring bar on which is supported a cutting head assembly that is adapted to be axially translated by a lead screw drive powered by an AC variable speed servo motor is provided with mounting brackets atta... | 09/10/2002 |
| 6257809 | Tapping apparatus and method Apparatus for tapping or threading holes in material reduces stresses and the danger of breakage of the tap by rotatably driving the tap at locations on the tap that change as the tap enters the workpiece. The driving element engages the tap at a point cl... | 07/10/2001 |
| 6216798 | Work unit for machine tool, with linear electric motor for axial movement of the spindle The invention concerns the work units for automatic machine tools in which a spindle (5) moves in translation and rotates with respect to a work axis (Z). More particularly in these units, in order to obtain the rotation/translation of the spindle, the la... | 04/17/2001 |
| 6204585 | Work unit having an integrally mounted drive unit A work unit for automatic machine tools is provided with a spindle that moves in translation and rotates with respect to a work axis. The spindle is housed within a sleeve that is slidable along the work axis, with the spindle being rotatable within. Rota... | 03/20/2001 |
| 6102633 | Feed system for a drill press A feed system for a drill press. The drill press comprises a base for supporting the drill press on a surface, a housing supported on the base and defining an opening, a telescoping spindle assembly positioned for movement relative to the housing along an... | 08/15/2000 |
| 6080039 | Table drive for multi-axis machine tool A machine tool comprising a bed, a worktable movable relative to the bed along a linear path and a tool movable to engage a workpiece on the worktable wherein drive means for effecting the movement of the worktable relative to the bed and therefore to the... | 06/27/2000 |
| 5902077 | Variable speed universal drilling tapping and reaming machine One of two arms is mounted adjacent one end thereof for rotation and axial adjustment on a cylindrical column which projects vertically upwardly from a generally flat, rigid base. The second arm is rotatably connected adjacent one end to the opposite end ... | 05/11/1999 |
| 5769575 | Oscillatory motion device for drill press A drill press has a drive motor with output shaft that drives a chuck through a rotatable and vertically displaceable quill and a first drive coupling which includes a pair of pulleys, such as cone pulleys, and a belt extended between the cone pulleys. A ... | 06/23/1998 |
| 5752789 | Right angle peck drill The invention provides a unique approach to solving a peck feeding problem in limited access areas restricting the drilling unit size. It uses a power transmission system which is comprised of a pinion gear driven by a motor source. The pinion gear drives... | 05/19/1998 |
| 5735647 | Tap hole drill for steelmaking vessel A drilling apparatus for drilling a worn and/or damaged tap hole refractory liner sleeve from a tap hole nozzle of an oxygen blown steelmaking vessel, the apparatus including an elongated, hollow boom structure with an elongated drill shaft rotatably disp... | 04/07/1998 |
| 5735646 | Interruptible feed rate drilling system In a system which interrupts the infeed signal generated by a CNC machine drive signals are applied to at least an RPM Control Electronics Module to drive the rotation of a cutting tool and the infeed drive motor electronics. A solid state relay intercept... | 04/07/1998 |
| 5733074 | Manual tool for removing material from brittle and/or non-ductile stock A manual tool for removing material from brittle and/or non-ductile stock includes a housing (1) with a drive unit (2) for a tool bit (3) located within the housing (1). The tool bit is arranged to be rotated by the drive unit (3) about the bit axis. In a... | 03/31/1998 |
| 5676503 | Drill stand with an automatic advancement device for a drilling machine A drill stand for a hand-held drilling machine (30) has a length-variable support (2, 4), on which a clamping chuck (20) for the drilling machine (30) is mounted in a displaceable manner. A spring (50) presses the drilling machine (30) in the advancement ... | 10/14/1997 |
| 5673467 | Machine tool assembly A machine tool assembly having a rotatable element for driving a tool to operate on a workpiece and structure for driving the rotatable element in rotation. The driving structure has a first power source and first structure cooperating between the first p... | 10/07/1997 |
| 5642969 | Portable machine tool A machine tool comprises a mounting member for attachment to a workpiece. The mounting member includes a bearing portion that has an external surface of circular cross section and is formed with an aperture in its external surface. A utility device has an... | 07/01/1997 |
| 5630685 | Toolhead assembly for machine tools A toolhead assembly for a machine tool generally consisting of a housing supportable on the machine tool and having at least one elongated bore therein, a liner formed of a structural polymer material disposed in the bore, adhesively secured to the housin... | 05/20/1997 |
| 5613810 | Pneumatic power drill A portable pneumatic power drill whose tool-carrying spindle is rotated by a pneumatic motor. According to the invention spindle speed is under the control of an electric motor as a function of the speed of rotation of the tool-carrier spindle and of inst... | 03/25/1997 |
| 5458443 | Automatic drilling tool especially for a robot A drilling tool is adapted for incorporation into a riveting robot. For this purpose, the drilling tool with its spindle head is mounted on a slide that is motor driven for displacement in the Z-direction of an XYZ coordinate system. The slide in turn is ... | 10/17/1995 |
| 5409328 | Drilling machine for railroad rail A drilling machine for a railroad rail, in which the railroad rail is clamped crosswise with respect to a main body case by a catch frame and a clamp arm, includes a cutter advanced perpendicularly with respect to the middle part of the rail by turning th... | 04/25/1995 |
| 5370481 | Drill press for stereotaxic manipulator A drill press is provided for use in conjunction with a three dimensional stereotaxic manipulator. The drill press includes a body carried by a movable member of the manipulator wherein the body has upper and lower segments and at least one guide shaft ex... | 12/06/1994 |
| 5354159 | Cable drive for drilling machine Z-axis A cable passes over pulleys to precisely control the linear movement of a machine element back and forth along a guideway. The cable path connects multiple pulleys on stationary machine elements to multiple pulleys on the movable machine element, affordin... | 10/11/1994 |
| 5350263 | Toolhead for chip-forming machine tools A toolhead (9) wherein the spindle (21) of the tool (11) is rotated about its axis (10) and in relation to the casing (12) of the toolhead (9) by a first motor (28), and is moved along the axis (10) by a drive (38) activated by a second motor (39); the sp... | 09/27/1994 |
| 5348429 | Tapping apparatus with rapid tap advance/retraction Tapping apparatus for tapping holes in workpieces is provided with a tap assembly that includes a tap fitted to a lower tip end of a vertical lead screw, there being means including a bushing for rotating the lead screw thereby to vertically advance and r... | 09/20/1994 |
| 5330298 | Milling machine accessory providing automatic and manual quill control A milling machine has a lower frame portion with a saddle and a table coupled to the lower frame portion by a knee. The milling machine also has a head with a quill and spindle. The table provides movement of a workpiece relative to the spindle along a fi... | 07/19/1994 |
| 5321874 | Multi-positioner machining system A machining system that has (i) plural machining cells spaced along a path, each having a single-point-tool and a rapid-positioning assembly for positioning the tool for multiple insertions into a workpiece as well as rapid tool exchange at speed rates th... | 06/21/1994 |
