"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 |
| 8186611 | Segmented knife assembly with replaceable wear segments A segmented knife assembly for a mixer apparatus is disclosed. The knife assembly has a front, a rear, and a perimeter with a cutting edge forming a portion of the perimeter. The segmented knife assembly includes a support portion positioned toward the rear of the k... | 05/29/2012 |
| 8167226 | Chipper knife and method of manufacturing a chipper knife A chipper knife adapted to be mounted in chippers which have a rotatable tool, in the form of a disc, drum or frustoconical member, on which a plurality of chipper knives are mounted has at least one cutting edge which is defined between two edge-forming surface por... | 05/01/2012 |
| 8167225 | Cutting tooth for brush cutter A cutting tooth is used on a brush cutter head. The cutting tooth includes a cutting portion having a first face and a second face. The first face and the second face cooperate to define a tapering profile terminating in a cutting edge. The first face of the cutting... | 05/01/2012 |
| 8162249 | Chipper knife and method of manufacturing a chipper knife A chipper knife that is adapted to be mounted in chippers which have a rotatable tool, in the form of a disc, drum or frustoconical member, on which a plurality of such chipper knives are mounted has at least a first side having a raw, unworked surface or working st... | 04/24/2012 |
| 8146849 | Chopping drum for a forage harvester A chopping drum for a forage harvester has a shaft. Supporting rings are mounted on the shaft one next to the other in the axial direction and extending in the radial direction. Blade holders are distributed around the outer periphery of the supporting rings, and ch... | 04/03/2012 |
| 8128015 | Tool mounting A cutter assembly for a rotary, shear-type shredder including a cutting-tool carrier having a body possessing a rotational axis, a shear cutting tool, and a generally radial, sliding-friction-type, heat-cycle, binding interface removably anchoring the tool to the ca... | 03/06/2012 |
| 8066215 | Roller press with annular disc A roller press (1) is described for grinding particulate material such as cement raw materials, cement clinker and similar materials, the roller press having two oppositely rotating rollers (2, 3) with one roller being movably supported relative to the... | 11/29/2011 |
| 8061642 | Cutter device for a crushing machine A cutter device for a crushing machine includes a rotary cutter base body and plural cutters. The rotary cutter base body is formed integral and has an outer peripheral side axially and equidistantly formed with plural annular ribs respectively provided with plural ... | 11/22/2011 |
| 7980502 | Cutting tool for comminuting devices The invention refers to a cutting tool for comminution devices, comprising a knife (2) or knife edge which can be fastened to a comminution cylinder or a toothed body (1). The invention is characterized in that the knife (2) can be arrang... | 07/19/2011 |
| 7959099 | Bolt-in toolholder for a rotor assembly A bolt-in toolholder assembly for a shredding device includes a rotor having a substantially cylindrical shape, a plurality of pockets formed in the rotor and spaced apart preselected distances to form preselected patterns, a bolt-in toolholder. ... | 06/14/2011 |
| 7938350 | Knife holder for comminution devices The invention refers to a knife holder for comminution devices, comprising a tooth body (1) which can be fastened on a comminution cylinder or the like, and at least one knife (2), the knife (2) being able to be arranged positive-locking on the ... | 05/10/2011 |
| 7900861 | Teeth for grinding apparatus A replaceable tooth arrangement for use in grinding discs such as used in wood hoggers and comminuting equipment. A preferred tooth arrangement includes two end to end adjacent tip portions, or a tip portion end to end with a complementary base portion. The contacti... | 03/08/2011 |
| 7815136 | Cutting wheel containing secondary cutters The present invention includes a cutting wheel device for grinding materials, the cutting wheel comprising a plurality of discrete plates mounted on an axle and cutting heads positioned between the plates. The cutting heads having a portion extending beyond the peri... | 10/19/2010 |
| 7584921 | Shredding apparatus and method of clearing land A shredding apparatus utilizes a cylindrical drum adapted for quickly and effectively clearing large tracts of land. Several blocks are positioned in two spiral rows on the periphery of the drum and are secured to the drum by welding. The blocks in each row are spac... | 09/08/2009 |
| 7510135 | Grinding roll The invention relates to a grinding roll with a basic roll body as well as a plurality of wear protection elements made from hard metal which form at least a part of the roll surface. The basic roll body has recesses extending in the circumferential direction, a plu... | 03/31/2009 |
| 7497396 | Grinding roller for the pressure comminution of granular material The aim of the invention is to provide grinding rolls in particular for high-pressure roller mills or rolling presses for pressure grinding a granular material not only with a wear-resistant coating but also with a face armour plating in the area of the roller annul... | 03/03/2009 |
| 7438247 | Grinding rollers for a vertical crusher The invention relates to a composite milling roller, produced by casting, comprising peripheral inserts of a high wear-resistance and high hardness material, sealed in a ductile material on said casting. The roller comprises first zones subject to high wear and seco... | 10/21/2008 |
| 7416144 | Exchangeable beater A percussion tool for comminuting materials, in particular wood waste materials, having a beater head and a shank, wherein a cutting insert with an upper cutting edge extending transversely with respect to the cutting direction is fastened on the beater head. If the... | 08/26/2008 |
| 7384011 | Multi-functional tool assembly for processing tool of waste processing machine A multi-functional tool assembly for a waste processing machine includes waste reducer to reduce waste material. The multi-functional tool assembly also includes a single tool to support the waste reducer. The tool includes a head, a fan, and a shaft integrally form... | 06/10/2008 |
| 7380576 | Milling tooth and milling tooth holder for a comminution machine A milling tooth body for a comminution machine has a working side, oriented in a working direction; a flange side detachably connected to a milling tooth holder of the comminution machine; a tooth tip on the side of a recess; and a base at an end of the tooth body f... | 06/03/2008 |
| 7377459 | Tooth construction for a mineral breaker A tooth construction for a mineral bear, the tooth construction including a tooth shaped support body covered by a shell which defines the outer shape of the tooth construction, the shell being composed of a plurality of covers which are fixedly secured to one anoth... | 05/27/2008 |
| 7360289 | Apparatus for milling a surface The present invention provides an apparatus for use on a roof or the like which incorporates an insulation material. The invention allows workers to shave the insulating layer to smooth, remove high spots, or create slopes, valleys or sumps, in order to achieve posi... | 04/22/2008 |
| 7322175 | Crop conditioning roller flute shape A forage conditioner for conditioning cut crop material from a forage harvester includes a fixed bottom fluted roller carried in end housings and a top fluted roller which is pivotally mounted on the housings by a linkage pivotal relative to the housing about an axi... | 01/29/2008 |
| 7293730 | Knife fixing method The present invention concerns a method for fixing a knife in wood chipper apparatuses over the whole knife length between two steady surfaces. The fixing force is developed by means of a roller chain located between two counter surfaces and reversing its direction ... | 11/13/2007 |
| 7293729 | Arrangement facilitating single fastener attachment for strikers of a wood comminuting rotor A comminuting striker assembly for mounting on a rotor of a comminuting apparatus comprising: a striker having first and second opposed faces, the first face defining at least one cutting edge, and a striker retainer, the striker and striker retainer defining cooper... | 11/13/2007 |
| 7290726 | Angular cutting tool A cutting tool holder, a cutting bit, and a retainer maintaining the cutting bit at a prescribed position relative to the tool holder. The cutting bit is received in a slot located in a first lateral surface that extends through the top surface. The retainer is rece... | 11/06/2007 |
| 7287938 | Machine tool A machine tool has a rotatable tool holder formed with an outwardly open seat having an outwardly directed floor and a cartridge engaged in the seat, carrying a cutting insert, and formed with an inwardly open groove defining a groove axis and having a surface confr... | 10/30/2007 |
| 7287308 | Swarf cutter An assembly suited to the lathing of cylindrical workpieces, such as photoreceptor blanks, includes a first drive system which rotates an associated workpiece about an axis of rotation. A machining tool machines a circumference of the workpiece to generate a strip o... | 10/30/2007 |
| 7285180 | Perforated deck made out of a plurality of segments A cylindrical rotating thickening device including an axial core, a plurality of longitudinally extending spaced apart support ribs extending radially from the axial core, and a shell surrounding the support ribs and supported thereon. The shell includes a plurality... | 10/23/2007 |
| 7281676 | Shredding apparatus and method of clearing land therewith A shredding apparatus includes a shredding drum capable of quickly and effectively clearing large tracts of land. Several cutter blocks are positioned in axial rows across the periphery of the drum and are secured to the drum by welding. The blocks in each row are e... | 10/16/2007 |
| 7222808 | Mulcher with improved tooth design A mulcher apparatus includes a tractor and a mulcher unit provided to the tractor. The mulcher unit includes a tooth assembly with a holder and a cutter element with a cooperating notch portion and cross bar arrangement. The notch portion can be retrofit to existing... | 05/29/2007 |
| 7213778 | Tire size reduction/wire separation system A tire size reduction/wire separation system comprising a drive shaft; a plurality of rotors mounted on the drive shaft, each rotor having axial slots with a rotor mounted knife removably secured within each slot; and an independent housing supporting the drive shaf... | 05/08/2007 |
| 7213781 | Cutterhead A cutterhead having a drum surface with a series of knife retainers distributed about the surface. The longitudinal extension of the knife retainers defines an angle α with the axis of rotation of the cutterhead, and a knife is mounted to the knife retainer. The kn... | 05/08/2007 |
| 7204442 | Apparatus and method for supporting and retaining a hammer and cutter A rotary drum having a cutter extending outward from the outer diameter of the rotary drum. The rotary drum further includes a sleeve. The cutter is retained in a position relative to the drum by at least one block having a surface that wedges the cutter and/or inte... | 04/17/2007 |
| 7186087 | Method and apparatus for a dispensing system with a dual direction paddlewheel A dual rotation paddlewheel includes tangs that are equally effective in either direction of rotation. The paddlewheel includes tangs disposed around an outer periphery of a body. The dual rotation paddlewheel includes a primary face for use in a first direction and... | 03/06/2007 |
| 7175119 | Apparatus and method for shredding wet chip materials A shredder apparatus and method for shredding wet chip materials in which the shredder utilizes a shredder mechanism having a shaft attached to a frame, a bearing assembly disposed on the shaft, and a rotatable rotor disposed on the bearing assembly. First shredder ... | 02/13/2007 |
| 7168501 | Rotor system for ground milling or mine milling A rotor system for ground milling or mine milling comprising a base rotor provided with a number of support plates for accommodating tools. The tool support plates are detachably joined to the base rotor in the rotor system. A number of segments are radially arrange... | 01/30/2007 |
| 7137583 | Striking tool for comminuting materials A striking tool for comminuting materials, particularly waste wood, having a shank and a chisel head, wherein a cutting insert is fastened on the chisel head. For an extended service life, along with an improved comminuting output, the cutting insert has at least on... | 11/21/2006 |
| 7134622 | Chipper knife and holder therefor The invention relates to a chipper knife for chippers of the type comprising a tool (12) which is rotatable on an axis of rotation and is in the form of, for example a drum, disc or truncated conical body, which supports a plurality of such chipper knives. Th... | 11/14/2006 |
| 7134623 | Hammermill A hammermill having a housing, a rotor assembly, a plurality of hammers, and a attrition plate assembly is provided to reduce oversized particulate material to a desired size. The housing has a sidewall that extends between an inlet end and an discharge end which de... | 11/14/2006 |