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?
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4633847 | Multiple-blade internal-hole saw for sawing crystalline rods Crystalline rods or blocks can be sawed into thin wafers by sawing the rod or block into a plurality of wafers that are connected to each other. The wafers can be connected by introducing a connecting agent after each sawing step, into the resulting cutti... | 01/06/1987 |
| 4596640 | Shaping method and apparatus using an axially moving continuous elongated tool A workpiece cutting method and apparatus in which an elongated wire or band tool spans a pair of guides and is continuously advanced relative to the workpiece by a first drive system but is reciprocated in the region of the workpiece by a second drive sys... | 06/24/1986 |
| 4574769 | Multi-wire vibratory cutting method and apparatus In a multi-wire type cutting method comprising the steps of stretching and winding a continuous fine wire many times around four multi-grooved blocks disposed at the vertexes of a rectangle, bringing the lower horizontal parallel stretching lines of the w... | 03/11/1986 |
| 4566427 | Device for cutting blocks of granite, marble, stone and the like materials The device for cutting blocks of granite, marble, stone and other like materials by means of diamond blades displaced in a reciprocating movement by a blade carrying frame, said blade carrying frame being itself connected to a reciprocating motor unit, ch... | 01/28/1986 |
| 4539972 | Method for the multiple lap-cutting of crystal blocks with continuous shortening of the blade excursion In the multiple lap-cutting of crystal blocks, the blade excursion is shortened continuously by a connection between the rotating drive crankhead and the connecting rod system which transmits the force to the gang saw which is moved toward the center of t... | 09/10/1985 |
| 4498450 | Gang saw for cutting blocks of stone An improved vertical gang saw is provided for sawing blocks of stone or the like. By this new design, the vertical saw frame is slued or swung about the center of the blades during each reciprocating movement. This design combines the following features: ... | 02/12/1985 |
| 4494523 | Wire saw An improved wire saw is disclosed in which a linear wire storage means comprises a vertically moving carriage. The carriage is supported by the wire, thereby improving the efficiency and production rate of the saw.... | 01/22/1985 |
| 4474164 | Sawing machine for stone blocks Machine for stone blocks' sawing. The sawing machine includes a frame mounted in order to pivot around a horizontal axis (6) and wearing two saw blades (8) on each side of this frame, the cutting edge of the blades (8) having an arc shape which center coi... | 10/02/1984 |
| 4393450 | Three-dimensional model-making system A three-dimensional model-making system that employs a cutting wire under tension and acting in a reciprocating mode to shape an easily-machinable material. The machine has three servo-driven axes including an x and y axis and a rotational axis.... | 07/12/1983 |
| 4379042 | Apparatus using an axially moving continuous elongated tool A workpiece cutting apparatus in which an elongated wire or band tool spans a pair of guides and is continuously advanced relative to the workpiece by a first drive system but is reciprocated in the region of the workpiece by a second drive system at high... | 04/05/1983 |
| 4308852 | Apparatus for sawing different materials An apparatus for sawing different kinds of materials has a supporting frame including a girder-type construction defining an opening for the feed-through of materials to be cut in longitudinal direction by a saw blade. A supporting platform for materials ... | 01/05/1982 |
| 4287869 | Charging system for cutting blade A cutting process in which a blade under tension is moved relative to a workpiece. The blade has a longitudinally-extending abrasive-holding portion defined by blade material that is softer than the workpiece to be cut and overlies a high tensile strength... | 09/08/1981 |
| 4226223 | Machine for sawing blocks of solid, especially stony materials, such as marble, granite and the like A machine for sawing stones, of the kind having one or more reciprocable blade-carrying frames, is disclosed, wherein an actuating mechanism for said blade-carrying frame is provided, which moves said frame(s) substantially parallel to itself along a pres... | 10/07/1980 |
| 4204515 | Apparatus for machining workpieces by abrasion Apparatus for machining workpieces by abrasion by means of an oscillating ltiple-blade tool, which is moved across the workpiece. The moved masses define an oscillatory system, as a result of which the energy can be stored in the reversal ranges by a buff... | 05/27/1980 |
| 4188936 | Method for increasing the cutting performance of reciprocating slurry saws and a reciprocating slurry saw for carrying out this method A method for increasing the cutting performance of reciprocating slurry saws of the type in which cutting blades are held in a clamping frame is accomplished displacing the clamping frame at a frequency above two cycles per second in reciprocating motion ... | 02/19/1980 |
| 4187827 | Process for multiple lap cutting of solid materials A process for the multiple lap cutting of solid materials, using a set of parallel, spaced apart blades mounted on the frame of a gang-saw for reciprocal movement over the solid materials to be cut, in a suspension of a lapping abrasive, wherein a pressur... | 02/12/1980 |
| 4178670 | Process of forming a wire pack Making a wire pack in which a plurality of wires of predetermined length extend between a pair of spaced supports by wrapping turns of wire in a helix around a cylindrical roll while maintaining a constant tension on the wire, placing the supports in posi... | 12/18/1979 |
| 4177789 | Method for the production of slabs of marble or similar stony material Thin sections of marble or like stone are made by sawing of a block to produce preliminary slabs which are held together, either by integral bridging portions, bonded base portions, or external shoring, while a spacer material, for example resin, is intro... | 12/11/1979 |
| 4160439 | Cutting-off machine for hard bodies The invention relates to a machine for cutting hard bodies, characterized by the fact that it comprises two power-driven rotatable drums with parallel axes, each provided with a helical groove on its peripheral surface. An abrasive metallic wire is wound ... | 07/10/1979 |
| 4105012 | Apparatus for cutting up hard and brittle material A gang saw is used for cutting up hard and brittle material, particularly semiconductor material, in which saw there is a reciprocating movement of workpiece with a large amplitude and low frequency and an additional vibrating motion of the sawblades in t... | 08/08/1978 |
| 4098032 | Method of forming air bearing rails of head assemblies A plurality of parallel abrasive wires are placed into a plurality of grooves machined into a support. The depth and spacing of the grooves form a wire pattern which shapes the air bearing rails of sliders of magnetic head assemblies. Batch fabrication is... | 07/04/1978 |
| 4092971 | Self-contained, multi-blade package for slurry saws and the like A self-contained, multi-blade package is constructed to be mounted in the blade head assembly of a slurry saw for cutting hard materials such as quartz, silicon, germanium, and the like. The blade package is pre-assembled with connecting rods extending th... | 06/06/1978 |
| 4092972 | Process of cutting wafers In a cutting process in which a blade under tension is moved relative to a workpiece, that improvement wherein the blade has a longitudinally-extending abrasive-holding portion defined by blade material that is softer than the workpiece to be cut and over... | 06/06/1978 |
| 3982521 | Heavy duty jig saw The Present heavy duty jig saw is constructed for cutting through walls of concrete, masonry, and the like. For this purpose a somewhat elongated suction bell carries a guide bar secured to one longer side of the bell. The guide bar in turn carries tool c... | 09/28/1976 |
| 3976045 | Stone cutting machine A stone cutting machine is disclosed comprising a frame, a sliding beam movably supported on the frame, and one or more flexible wires having a plurality of cutting or honing segments projecting from the periphery thereof carried tautly by the beam. Motor... | 08/24/1976 |
| 3957028 | Wire-type cutting machine A wire-type cutting machine comprising a continuously moving wire which is guided over rollers supported by a set of rigid arms in the form of a parallelogram. The wire is pressed against the workpiece by deformation of the parallelogram. Accurate control... | 05/18/1976 |
| 3942508 | Wire-saw A wire saw having a single wire extending from a feeding roller to a take-up roller through a seesaw means and an array-forming and controlling means, so as to form a wire array at an intermediate portion, which wire array is reciprocated for sawing a wor... | 03/09/1976 |
