...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
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| Number | Title | Issue Date |
| 6733365 | Method and apparatus for hard machining A hard machining process uses a cylindrical tool (21) of ceramic or other hard machining material of comparatively low cost that provides a circular cutting edge to be engaged in cutting relation with hardened workpiece (20) to be machined. As tool cut... | 05/11/2004 |
| 6616511 | Rolling mill equipped with on-line roll grinding system and grinding wheel A grinding head unit is constituted by a grinding wheel, a drive device for rotating the grinding wheel, and a movement device for moving the grinding wheel. When vibration of a mill roll is applied to the grinding wheel, a plain wheel integral with an ab... | 09/09/2003 |
| 6425814 | Device for processing a card clothing A device for processing a card clothing mounted on a card clothing carrier, particularly an all-steel sawtooth card clothing carrier, has at least one processing tool and a guiding device for guiding the processing tool along a predetermined path. The gui... | 07/30/2002 |
| 6257964 | Roll grinding system for a roll A roll grinding system includes a roll with a pair of longitudinally opposite ends, a longitudinal axis extending between the ends, and an outer surface. A material removal tool is movable in a travel path along a length of the roll. The material removal ... | 07/10/2001 |
| 6095907 | Reciprocating assembly for abrading a workpiece A reciprocating assembly for moving an abrasive element over a workpiece. The reciprocating assembly utilizes a piston arrangement operated by pressurized fluid wherein the abrasive element is extended over the workpiece at one rate and is retracted along... | 08/01/2000 |
| 5853318 | Roll surface grinder A roll surface grinder includes a frame mounted on a carriage assembly for traversing movement between opposite sides of the frame in a direction parallel to the axis of the roll subject to grinding. The carriage assembly includes a linear drive system fo... | 12/29/1998 |
| 5797788 | Grinding a mounted card clothing A card clothing is mounted on a support and rotatable therewith about an axis. A grinding apparatus for the card clothing has an abrasive grinding element, a base juxtaposed with the card clothing, and an elastic biasing element for pressing the grinding ... | 08/25/1998 |
| 5651413 | In-situ conditioning of a strip casting roll A strip caster (10) for producing a continuous strip (24) has a tundish (12) for containing a melt (14) and a pair of horizontally disposed water cooled casting rolls (22). The casting rolls are juxtaposed relative to one another for forming a pouring bas... | 07/29/1997 |
| 5644828 | Device for in situ repairing of a cylinder in a printing machine A device for repairing a cylinder in a printing machine while the cylinder is installed in the printing machine. The device includes a cross slide rail having a base body with longitudinal guides, a longitudinal support slidably mounted on the longitudina... | 07/08/1997 |
| 5536198 | Apparatus and method for on-site dressing and truing of sanding machine rubber-covered cylinders An apparatus and method for on-site dressing and truing of rubber-covered cylinders mounted within sanding machines. The grinding apparatus comprises a base having a pneumatic cylinder mounted thereon for imparting oscillating or reciprocating movement to... | 07/16/1996 |
| 5460565 | Pivoting polishing block for use in apparatus for cleaning and polishing roll assemblies A pivoting polishing block assembly comprises a torsion arm having a molded polishing block joined thereto in pivoting relation about the central axis of the torsion arm. The molded polishing block comprises a polishing block holder having a plurality of ... | 10/24/1995 |
| 4841675 | Apparatus for cleaning and polishing roll assemblies An apparatus is provided for cleaning and polishing the surface of cylindrical rolls. The apparatus is characterized by a shaft connected at each end thereof to end units. The end units are movable toward and away from the surface of the roll to be cleane... | 06/27/1989 |
| 4841683 | Roll grinding system Worn rubber-like coating around a printing roll or the like is resurfaced by bringing a regrinder with spaced abrasive belts to the place where the roll operates, and operating the belts to regrind the roll as it is rotated by its operating drive. The reg... | 06/27/1989 |
| 4767438 | Apparatus for cleaning material transporting rollers The roller cleaning apparatus of the present invention includes a frame which has a pair of caster mounted wheels located at one of its ends. The casters are connected to one another through a tie-rod which causes them to turn as a unit between a right-ha... | 08/30/1988 |
| 4428164 | Apparatus for the continuous polishing and the uniform cooling of the face of a rolling mill work roll mounted in its stand An apparatus which comprises at least one abrasive rubbing element mounted on a retractable support extending over all the width of the roll face. The abrasive rubbing element is applied with a predetermined pressure against the roll face during operation... | 01/31/1984 |
| 4418503 | Apparatus for continuously polishing the pressure roller of a coiling machine An apparatus for the continuous polishing of a pressure roller in a coiling machine, comprising at least one abrasive rubbing element which extends parallel to the axis of rotation of and over the entire length of the face of the roller, the abrasive rubb... | 12/06/1983 |