Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7695224 | Deburring welded pipe Methods of producing a pipe include curling a skelp into a cylindrical shape by bringing laterally opposed edges of the skelp together to form a seam, butt welding the seam to define the pipe downstream of the skelp, thereby leaving a radially inwardly extending wel... | 04/13/2010 |
| 7422399 | Debeading tool for butt-welded plastic pipe A debeading tool capable of internally debeading butt-welded pipe made of PVC and similarly hard plastics has a work head that can be coupled to a distal end of a torque tube. The work head includes a motor carrying a cutter which is oriented at an angle, e.g., 12 d... | 09/09/2008 |
| 7360975 | Multi-functional tube milling head A milling head for a rotary tool, which is preferably utilized to process, prepare, or otherwise impart a desired finish to a workpiece, preferably an end portion of a tube. In a preferred embodiment, the milling head includes at least three different cutting or mil... | 04/22/2008 |
| 6887020 | Device for deburring the inside of a longitudinally seam-welded pipe, and method for adjusting a device of this type A device for deburring the inside of a longitudinally seam-welded pipe includes a retention arm secured outside the pipe in the area of the pipe that is not yet closed and having an end zone which is located behind the welding spot. Arranged on the retention arm is ... | 05/03/2005 |
| 6276881 | Method of manufacturing slotted component Apparatuses and methods are implemented for machining a longitudinally extending slot in a bore of a component. The component is gripped in a gripping device of a workholding device. A cutting operation is performed in order to cut the slot in the bore by... | 08/21/2001 |
| 5782398 | Device for inside scarfing of longitudinally welded tubes or profiles A device for the inside scarfing of tubes or profiles longitudinally welded in a tube welding line consists of a tool carrier guided on guide rollers inside the tube to which a cutting ring is attached. The cutting ring is clamped in a cutting ring holder... | 07/21/1998 |
| 5435676 | Two-stage broaching of engine block bearings A method and apparatus for broaching a series of axially aligned and spaced bores in which a first broach is provided for broaching in an initial operation. The first broach has circumferentially extending cutting teeth. The first broach also has arcuatel... | 07/25/1995 |
| 5323949 | Apparatus and method for cutting and transporting scarfed weld bead The invention comprises a method and apparatus for handling the weld bead scarfed from the interior surface of continuous seam welded metal tube or pipe incident to its manufacture. A section of tube of predetermined length is cut from the lead and of the... | 06/28/1994 |
| 5216792 | Method of and device for obtaining short shavings trimmed from the seams inside longitudinally welded pipes An arrangement for trimming short shavings from a seam inside a longitudinally welded pipe having a longitudinal axis, in which an inside shaving is scraped off continuously with a stationary blade by moving the pipe relative to the blade. The inside shav... | 06/08/1993 |
| 5201622 | Train apparatus for removing blisters from a fiber conduit A train apparatus for removing thick blister buildups from an underground fiber conduit used for housing power cables. The train apparatus includes three or more cutting units including an initial, a middle and a final cutting unit having smallest, medium... | 04/13/1993 |
| 5072514 | Round scraper tool A scraper tool particularly useful for hand deburring internal rounded corners, holes an concave surfaces includes a scraper blade integrally formed with a front part having a scraping edge, and a back part joined to a shank at the back end fixed to the h... | 12/17/1991 |
| 5056972 | Deburring device A device for deburring the inner longitudinal welding seam of longitudinally moving, seam welded conduits. The device includes an elongated frame with a trailing head on which there is mounted a cutting ring positioned to cut or deburr such seam. The cutt... | 10/15/1991 |
| 4936723 | Method and apparatus for cutting off the beads of seam-welded pipes A method and an apparatus for cutting off the beads of seam-welded pipes are disclosed, in which the skew angle of a freely rotatable circular cutting tool is 25°-35°, and the tilt angle is 15°-25°. The apparatus comprises a double-walled holder, a ... | 06/26/1990 |
| 4893972 | Cutting tool The present invention pertains to a cutting tool for removing upset from inside a tube and which does not force splatter into the inside surface of the tube. The cutting tool comprises a holder and means for enabling the tube to move along the holder. The... | 01/16/1990 |
| 4822221 | Internal flash removal unit An internal flash removal unit which radially cuts flash while it is still hot and relatively soft. A drive motor and reduction gearbox mounted in a housing drive a tooling plate rotatably mounted on the housing. A cutting assembly is mounted on an arm wh... | 04/18/1989 |
| 4710078 | Device for the internal deburring of a pipe A device for the internal deburring of a pipe or shaped tubular member, such as for removing the inwardly projecting portion of an axially extending seam, includes a support body elongated in the axial direction of the pipe. A cutting ring is clamped exte... | 12/01/1987 |
| 4682921 | Inside-tube scarfing tool A scarfing tool for scarfing the inside of a tube-like member in which an elongated body is adapted for attachment to the end of an impeder rod. The body includes a cutting tool and a pair of spaced apart rollers aligned with the cutting tool. A thrust ro... | 07/28/1987 |
| 4440533 | Deburring tool A tool for deburring the inside wall of welded tubes includes a tool body carrying a cutter, and a lower roller is linked to the body, being urged at a constant force against the tube wall; the body carries an upper roller linked to a rod that is accessib... | 04/03/1984 |
| 4383786 | Apparatus for removing flash from pipes An apparatus comprises a body having V-shaped two-arm levers mounted thereon. Around the periphery of the body there are mounted cutting tool holders pivoted each to one arm of each of the levers. Secured to the body are drives for turning the levers and ... | 05/17/1983 |
| 4358231 | Device for internally deburring tubes A device for internally deburring tubes and the like welded along a longitudinal seam includes an elongated main support body. A cutting ring is mounted in the main body adjacent to one of its ends and the ring projects outwardly from one surface on the b... | 11/09/1982 |
| 4266896 | Deburring tubes or pipes on the inside A tubular cutter with flared end and circular edge is obliquely held and centered by resilient guide elements, one in line (axially) with the edge, the other one acting radially opposite and axially between the first one and the edge. The edge has a large... | 05/12/1981 |
| 4138925 | Deburring an inside welding seam of hollow profiles A deburring device has a fixed or pivotable head on a rod or shaft which projects into the tube, pipe or other hollow to be deburred. The head has an oblique bore in which sits a tube; a cutting edge is provided along and around one end of that tube. Turn... | 02/13/1979 |
| 4084484 | Device for removing internal circular flash According to the present invention the radial feed mechanism comprises a hydraulic cylinder on the rod of which is rigidly fixed a holder connected with the housing of the radial feed mechanism by springs which ensure the cutting force of the cutting tool... | 04/18/1978 |
