"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 8104378 | Method of producing initial components for saw blades or saw bands The present invention relates to a method for manufacturing of preforms (15, 25) for saw blades respectively saw bands, comprising the following steps (a) arranging a strip (30) of a cutting material for a cutting edge of saw blades respectively saw ba... | 01/31/2012 |
| 7373857 | Composite metal article and method of making A composite metal article from two dissimilar metals is prepared. A metal base is comprised of a first metal and having first and second opposing surfaces and a least one longitudinally-positioned depression in each of the first and second opposing surfaces for rece... | 05/20/2008 |
| 7303722 | Method of making tools or components The present invention relates to a method of making a sintered body comprising one or more hard constituents in a binder phase by injection molding or extrusion. According to the invention, the binder system comprises 30-70 wt % poly(ethylene-co-vinylacetate) and ba... | 12/04/2007 |
| 7285241 | Method of manufacturing hard material components The present invention relates to a method of making a sintered body comprising one or more hard constituents in a binder phase by injection molding or extrusion. According to the invention, the granulating agent during drying is an ethylene oxide polymer and the bin... | 10/23/2007 |
| 7258044 | Apparatus and process for cutting of extruded material A rotating cutting apparatus comprising a cutting blade holder with at least one hole on the outside diameter of the cutting blade holder into which cutting blades are inserted and bonded to the cutting blade holder. The cutting blade holder encloses a center hole, ... | 08/21/2007 |
| 7249483 | Method for manufacturing backing plate with friction material retention members A backing plate for a friction assembly includes a body having a first surface and a second surface and a thickness defined therebetween. One or more retention members are provided on the first surface for engaging a friction material mounted thereon. Each retention... | 07/31/2007 |
| 7225714 | Tooth form design for reciprocating saw blade A reciprocating saw has a tooth form that decreases the cutting time of the saw blade and extends the life of the saw blade. The tooth height is longer than conventional metal cutting reciprocating saws. Also, the tooth form has a larger gullet. The tooth rake angle... | 06/05/2007 |
| 7222555 | Method of manufacturing a hacksaw A method for manufacturing a handsaw capable of cutting a glass bottle. The method includes cutting a steel strip to a predetermined length to form a handsaw substrate. A portion of the handsaw substrate, other than a cutter blade forming portion formed on at least ... | 05/29/2007 |
| 7210388 | Bimetal saw band A bimetal saw band which is suitable for cutting materials of high hardness and wear resistance at high cutting speeds and with a reduced consumption of coolant is disclosed. The saw band includes a support band with from 0.20 to 0.45% of carbon, from 0.2 to 0.6% of... | 05/01/2007 |
| 7194933 | Composite circular slicer knife A substantially circular slicer knife is provided having an interior base portion made of a first material and an outer edge portion made of a second material. The outer edge portion is metallurgically bonded to the interior base portion. ... | 03/27/2007 |
| 7181993 | Apparatus and process for cutting of extruded material A rotating cutting apparatus comprising a cutting blade holder with at least one hole on the outside diameter of the cutting blade holder into which cutting blades are inserted and bonded to the cutting blade holder. The cutting blade holder encloses a center hole, ... | 02/27/2007 |
| 7178441 | Versatile bandsaw blade A bandsaw blade includes a blade beam carrying a plurality of cutting teeth separated by gullets. A clearance angle of the teeth is smaller than 35°, and the back of a leading tooth has a convex transition to a gullet. The radius of the gullet is larger than ½ of ... | 02/20/2007 |
| 7174823 | Saw blade having increased tooth stiffness and resistance to fatigue failure A band saw blade comprising a plurality of teeth, wherein each tooth comprises a tip; a rake face formed on one side of the tip; a primary clearance surface formed on an opposite side of the tip relative to the rake face; a secondary clearance surface formed on an o... | 02/13/2007 |
| 7137316 | Saw blades A saw blade is formed from a blank which has an edge. Inserts, such as tungsten carbide are inserted in apertures in the blank and a finishing cut is then made along the line to produce a series of teeth, each having a point within the body of the insert, and thus f... | 11/21/2006 |
| 7117863 | Saw blade for cutting fiber cement An improved circular saw blade designed for cutting fiber cement workpieces, which are becoming more and more prevalent on the construction site, includes a PCD/carbide tip (16) mounted in the rim (31) of the saw blade (10) at six, rather than t... | 10/10/2006 |
| 7036415 | Band saw blade A band saw blade includes a plurality of set teeth which are formed in a variable pitch. In that construction, a bending lengths of each of the set teeth at a setting and bending position or at a bendingly setting position are substantially equal to each other. ... | 05/02/2006 |
| 7021176 | Link plate for silent chain and method of manufacturing same In the manufacture of a link plate for a silent chain, a band of sheet steel is intermittently forwarded to string of punching dies and shaving dies. The band tends to follow a slightly curved path, which causes alignment errors in a conventional punching and shavin... | 04/04/2006 |
| 7017465 | Cutting tool with grooved cutting edge A cutting tool includes a base made of metal having a plurality to cutting teeth along an edge of the base, wherein at least one cutting tooth has at least one notch in the cutting edge of the at least one cutting tooth. A tool is prepared by introducing a notch run... | 03/28/2006 |
| 6945850 | Saw blade with abrasive surface The present invention relates to a saw blade for cutting and finishing the surface of a work piece. The saw blade having a set of teeth disposed about the outer edge for making a cut in a work piece and an abrasive secured to the lateral surface of the saw blade. Th... | 09/20/2005 |
| 6908688 | Graded composite hardmetals A multiple-region hardmetal tool piece. The tool piece includes a hardmetal body including a hard particle component and a binder; an additional body, the additional body including a hardmetal body having a hard particle component and a binder; a metal body or a cer... | 06/21/2005 |
| 6907809 | Positioning device for saw blades A saw blade positioning device has two drive mechanisms and two guidance devices, which are preferably oriented at right angles in respect to each other. If a first guidance device is oriented in the radial direction of the circular saw blade by the linear guides, a... | 06/21/2005 |
| 6868755 | Manufacturing method of diamond cutter A diamond cutter 7 constituted by a cutter base plate 5 having a curved surface 3 by drawing molding a steel sheet metal material is provided. The cutter base plate 5 is obtained by preparing an original plate having an axial hole 2 | 03/22/2005 |
| 6861161 | Composite tool A composite tool comprising a supporting part of a metallic material having a first composition and a working part of a metallic material having a second composition which is different from the first composition, a process for the manufacture thereof and a method of... | 03/01/2005 |
| 6745644 | Method for guiding an endless band-saw blade In installations for truing up band blades, band-saw blades must be precisely measured, in order to be trued up accurately. The band-saw blade to be trued runs over two deviation stations and is trued up in the upper linear guide area. The invention provides a saw-b... | 06/08/2004 |
| 6742403 | Braze strength testing tool for braze-on saw tips A device mountable onto the head of a torque wrench for testing the braze strength of replaceable kerf or saw tips (referred to inter-changeably herein), the device includes a clamp supporting member for clamped mounting, at a first end thereof, to a braze-on saw ti... | 06/01/2004 |
| 6736029 | Process for producing supply stock and supply stock for saw blades or saw belts Supply stock and process for producing the supply stock for a saw member that comprises at least a carrier part made of one material and at least a blade part made from a different material. The process comprises welding the carrier part to the blade part to form th... | 05/18/2004 |
| 6672182 | Process for manufacturing a circular saw blade and circular saw blade made thereby Process for manufacturing a circular saw blade and a saw blade obtainable by the process. At least two congruent metal blades of an iron-based alloy are glued together and the inner and outer lateral surfaces thereof are treated to provide roughness value... | 01/06/2004 |
| 6609442 | Chop saw An improved chop saw may include a base assembly, a blade assembly including a blade having a center and a motor for driving the blade, an arm pivotally attached to the base assembly and carrying the blade assembly, the blade assembly being movable betwee... | 08/26/2003 |
| 6571665 | Cutting instruments A process for making a cutting instrument includes cutting a blank from a plate or strip of Type 60 Nitinol, having a thickness of between 0.005"-0.500" using an abrasive waterjet, wire electron discharge machining or laser cutting, and grinding top and b... | 06/03/2003 |
| 6553869 | Method of forming a toothed cutting blade Toothed cutting blades are made by forming spaced slots in an edge of a blade preform (20) to leave lands (8) between leading and trailing walls (4, 6) defining the slots, the leading walls (4) having a rake angle greater than that required in the finishe... | 04/29/2003 |
| 6552354 | Photo device for monitoring setting width of saw teeth In order to obtain a simple, inexpensive and low-maintenance monitoring device for controlling the setting width of individual teeth of saw blades or belt-saw blades, in particular for controlling the setting result of a setting machine the present invent... | 04/22/2003 |
| 6532855 | Saw blade having dimples formed by process of deforming blade body A saw blade includes a blade body which defines a first side surface and a second side surface, wherein (i) the blade body has a multiplicity of discrete dimples formed on at least one of the side surfaces, (ii) the blade body is made of metal, and (iii) ... | 03/18/2003 |
| 6470772 | Method for the manufacturing of a saw blade A new saw blade and a method of manufacturing such a saw blade are disclosed. The saw blade is made from a hardenable steel sheet in one piece and comprises a plain cutting blade from which a cranked mounting part, having a central mounting opening, protr... | 10/29/2002 |
| 6439094 | Saw blade A saw blade is constituted with a unset tooth, a plurality of left-set teeth and a plurality of right-set teeth. In the construction, the saw blade has the unset tooth, a plurality of left-set teeth and a plurality of right-set teeth as one group. A plura... | 08/27/2002 |
| 6427573 | Saw blade tooth form and method therefor A saw blade has a plurality of teeth with each tooth formed by a beveled gullet forming a trailing face, a beveled gullet forming a leading face and a planar surface forming a curved cutting face. The gullets forming the trailing face and the leading face... | 08/06/2002 |
| 6405575 | Vibration absorbing reed forming process A vibration absorbing reed forming process for a piece of sheet metal having a planar surface comprising the steps of cutting a predetermined number of tabs in the piece of sheet metal with a first stamp, aligning the tabs in coplanar fashion with the pla... | 06/18/2002 |
| 6363827 | Method for producing saw bands In a method of producing saw bands and saw blades with improved dimensional and setting stability, a supporting band (2) with 0.2 to 0.6% carbon, 0.5 to 6.0% chromium and up to 3.5% tungsten, molybdenum and vanadium--individually or in addition to one ano... | 04/02/2002 |
| 6321618 | Cutting tip having rounded main cutting edge and sharp side cutting edges A metalcutting tool, such as a band saw blade, is formed by providing a body having at least one tooth, the tooth including a cutting tip having a rake face, a clearance face intersecting the rake face to form a main cutting edge therewith, and a pair of ... | 11/27/2001 |
| 6298762 | Saw blade with inserted multi-tooth arcs Solid carbide segments are brazed to the rim of a steel body and then teeth are ground into them. This allows more teeth/inch on the perimeter and larger diameter blades than on previous carbide-tipped blades. The segments, which typically form an arc of ... | 10/09/2001 |
| 6289767 | Band saw blades A method of automatically cutting a variable tooth pitch band saw blade from a bulk reel 40 of blade material 14 is achieved by using a cut to length machine 8. Blade material 14 from the bulk reel 40 is pulled on to a bed 42 of the machine 8. The blade m... | 09/18/2001 |