The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
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| Number | Title | Issue Date |
| 7513183 | Metal roof panel cutting shears A metal panel shear cutter is designed for metal panels which include support ribs. The metal panel cutter utilizes an anvil type cutting blade positioned at each side of a cutting base. Each cutting blade is pivotally connected to a cutting base in the vertical pla... | 04/07/2009 |
| 7219586 | Cutter A cutter 10 having a support member 12, a handle member 30 which is movably coupled to the support member 12, and a pair of cutting members 39, 40 which are attached to the handle member 30. The cutter 10 includes a s... | 05/22/2007 |
| 7080538 | Roofing panel notching, shearing, and hemming tool A notching, shearing, and hemming tool constructed with a table which receives the roofing panel, at least two notching devices (notchers), a pan shear pivotally mounted on the table, and a hemming tool pivotally mounted on the table. To prepare a finished end piece... | 07/25/2006 |
| 6979153 | Deep-grooving insert having stepped cutting edge A deep-grooving chip-forming cutting insert includes a rear mounting portion, a front cutting portion, and a pair of side walls, each side wall extending along the front and rear portions. The front cutting portion includes a front end surface, a top surface, and a ... | 12/27/2005 |
| 6595093 | Shingle cutting apparatus A portable apparatus for cutting roofing shingles at various angles comprises a rigid frame assembly, a first cutting blade affixed to the frame assembly, a cutting blade assembly comprising a blade-supporting arm pivotally attached to the frame and a sec... | 07/22/2003 |
| 5899133 | Frozen hamburger patty separator A frozen hamburger patty separator for separating a single hamburger patty from a frozen hamburger block including a U-shaped holding member having a bottom wall connected to front and rear walls for holding a frozen hamburger block in place. A U-shaped h... | 05/04/1999 |
| 5873294 | Semi-automatic tool for cutting pizzas into pieces of the same size A semi-automatic tool cuts pizzas into pieces of the same size. A platform has a supporting column provided with a cantilever arm terminating with a sleeve and a slidable rod is within the sleeve. The rod has a base with a series of radial blades on its l... | 02/23/1999 |
| 5775192 | Sliding miter cutter A shear type miter cutter has a pivotal blade and four linearly sliding blades. The linearly sliding blades may be manually linearly positioned to preset locations for a particular size or type of stock material. The linearly sliding blades are further li... | 07/07/1998 |
| 5471971 | Turret tile and machine for production of turret tile An apparatus for making ceramic tiles for roofs of turrets, including interchangeable cassettes each with a frame, a base mounted thereon and having an upper surface of frustoconical shape, and cutter carriers carrying the tile cutter blades and pivotally... | 12/05/1995 |
| 5394782 | Shearing apparatus An apparatus is provided for selectively shearing angle iron and flat stock. The apparatus has a frame defining a receiving station for separately receiving angle iron or flat stock. The receiving station includes a stationary shear blade assembly having ... | 03/07/1995 |
| 5370027 | Guillotine for cutting tabs A guillotine for cutting tabs includes a mobile part supporting a knife-blade. A mechanism with bolt and nut controls translation of the mobile part, which is guided and supported by a slide. The slide includes a rail made of a folded sheet metal and a ca... | 12/06/1994 |
| 5133236 | Tire cutting tool A tire cutting tool wherein a curved hardened cutter blade is hydraulically driven to cuttably engage a tire between the cutting face of the cutter blades and open faces of a cutter anvil with a beginning end of the cutter blade entering between the open ... | 07/28/1992 |
| 4811642 | Kitchen guillotine A kitchen guillotine is described in which a chopping board is provided with a pivotable sleeve device at one end thereof into which the tip of any available kitchen knife may be inserted so that a chopping action can be achieved by moving the knife handl... | 03/14/1989 |
| 4660451 | Scrap shearer The invention relates to a scrap shearer comprising a displaceable frame (1) and a pair of blade units (2, 3) shearing in a scissor-like manner, whereby the blade units are fastened on the frame (1) so that at least one of the blade units (2, 3) is pivota... | 04/28/1987 |
| 4408508 | Cutting tool having circular blade mounted on a pivoted lever The cutting tool has a circular blade having a center hole and a plurality of pivot holes spaced apart on a common radius with a handle fixed to the center hole and one of said pivot holes. A pivot shaft extends between spaced side plates and the blade is... | 10/11/1983 |
| 4399730 | Floating angle knife for metal working machines A knife assembly for shearing angle stock has a square, plate-like, floating cutter provided with a pair of opposed, flat, parallel faces, presenting four, stock-engaging corners each having two pairs of cutting edges, permitting eight "settings" used suc... | 08/23/1983 |
| 4387616 | Sheet metal shear A cutter for ribbed sheet metal building panels wherein anvil blocks are mounted on the base table adjacent the shear edge of the base table which normally cooperates with the cutting edge of the swinging shear blade. The anvil blocks define sharp cornere... | 06/14/1983 |
| 4385538 | Shearing device for cutting bar-shaped stock such as rolled steel billets A shear for cutting bar stock includes upper and lower cutting blade supports each having a cutting blade, and a hold-down member, all pivotally connected about a working bearing. This assembly is pivotally mounted about a second bearing or pivot axis on ... | 05/31/1983 |
| 4367669 | Device for cutting angular profiles applicable to hydraulic shears A knife cutter for the angular profiles includes a plate, generally triangular in shape, the posterior surface of which has a prismatic projection corresponding to one of the sides thereof. The side and the prismatic projection are arched in order to adju... | 01/11/1983 |
| 4241631 | Machine for punching, nibbling, rounding off and cutting any kind of sheets or plates, and for similar operations The machine comprises an operating arm accommodated with a pair of horizontally extending shoulders and is rockingly supported by a pin pivoted on parallel vertical supporting standards or uprights for said shoulders and forming part of the machine bedpla... | 12/30/1980 |