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U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 6644479 | Method and air separator for classifying charging material reduced in size A method of grading comminuted charging material in a wind sifter having a sifting rotor. The sifting air and the charging material are introduced into a sifting chamber and blocking air is blown into a ring seal region in the transition region between th... | 11/11/2003 |
| 6644859 | Supporting roller set for tiltable support of a rotary drum The invention relates to a supporting roller set for tiltable, axially movable and rotatable support for a rotary drum which can be driven in rotation. It comprises two supporting rollers which lie symmetrically on both sides of a vertical longitudinal ce... | 11/11/2003 |
| 6638058 | Tubular burner for industrial furnaces A tubular burner for industrial furnaces is capable of achieving a good mixing of combustion gas and fuel. This burner contains an end section projecting into a combustion zone supplied with secondary combustion air, and several separate annular feed duct... | 10/28/2003 |
| 6551100 | Device for thermally treating a material The invention relates to an apparatus for treatment of material, especially for thermal and/or chemical treatment, having an ascending pipeline branch, a diversion chamber and at least one descending pipeline branch. In the diversion chamber there is prov... | 04/22/2003 |
| 6544032 | Method and installation for heat-treating fine-grained products A method and apparatus for heat treatment of fine-grained material. In order to reduce the nitrogen oxide content of the exhaust gas from the combustion zone, a region of the calcination zone is operated under reducing conditions and ammonia-containing ad... | 04/08/2003 |
| 6357683 | Roller grinding mill The invention relates to a roll mill with two rolls which are rotatably mounted in a machine frame and have an outer wear protection casing. In order to facilitate a particularly simple and rapid replacement of the wear protection casings on the rolls, bo... | 03/19/2002 |
| 6325620 | Method of reducing volatile pollutants in the exhaust gases from a heat exchanger system In the method according to the invention for reducing volatile pollutants in the exhaust gases of a heat exchanger system for heating of cement raw meal or the like, partially preheated raw meal is heated to a temperature for release of the pollutants con... | 12/04/2001 |
| 6030448 | Method for producing cement clinker The invention relates to the production of cement clinker from cement raw material using a preheating zone, a calcination zone, a heating zone in which the calcined material is further heated whilst avoiding the formation of a molten phase, as well as a c... | 02/29/2000 |
| 5961056 | Method and apparatus for fine comminution of granular mill feed material A method and apparatus for comminuting granular mill feed material wherein the material is delivered in a stream to a gap between two rotary grinding tracks which confront one another, one of which is positioned at a small angle to the other so that in re... | 10/05/1999 |
| 5947719 | Grate plate construction A grate plate construction for installation as part of a grate assembly in which free flowing material is supported for movement along a path while treatment gas flows upwardly through such material. The construction has a relatively thin carrier plate ha... | 09/07/1999 |
| 5919301 | Method and apparatus for heat treatment of fine-grained material The invention relates to the heat treatment of fine-grained material which is first of all preheated in a multi-stage cyclone preheater, then further heated in a calcination zone, next finally burnt in a kiln and then cooled. Preheated material and tertia... | 07/06/1999 |
| 5902685 | Roll, method of producing a roll as well as material bed roll mill A grinding roll for use in a material bed roll mill for the comminution of brittle material has a cylindrical body in the periphery of which are alternating grooves and lands. To the exterior of each land is secured a wear strip. The grooves of the confro... | 05/11/1999 |
| 5897063 | Method of comminuting ore material In this method of comminution according to the invention, pre-comminuted ore material is subjected to material bed comminution in a material bed roll mill. In order to achieve optimal comminution even of very different ore materials with a high throughput... | 04/27/1999 |
| 5871348 | Method and apparatus for preventing formation of snowmen and removing lumps of coating in clinker coolers A method and apparatus for preventing the accumulation of fines and the resulting formation of snowmen in a clinker cooler by applying short duration blasts of high pressure, high velocity air from openings in the cooler inlet grate. The cleaning air can ... | 02/16/1999 |
| 5754423 | Method and apparatus for preparing a mixture of materials The invention relates to the preparation of a material mixture consisting of a plurality of mineral raw material components which are delivered individually proportioned, are ground and homogenised, wherein samples are periodically analysed and determined... | 05/19/1998 |
| 5673860 | Method and apparatus for comminuting moist mineral material The invention relates to the comminution of moist mineral material in the comminution zone of a material comminuting machine followed by breaking up of agglomerates which have formed and subsequent wet classification of the broken-up material. A good disa... | 10/07/1997 |
| 5642863 | Method of extracting metals from ore material In this method according to the invention for extracting metals, starting ore material is subjected to material bed comminution and then leached by the addition of leaching fluid. In order to be able to ensure an optimal yield of metals even in the case o... | 07/01/1997 |
| 5620116 | Rotary vane gate The invention relates to a rotary vane gate for free-flowing bulk material and Comprises a housing provided with housing covers on the end faces as well as with an inlet opening and an outlet opening and a compartmentalised wheel disposed in the housing w... | 04/15/1997 |
| 5613782 | Supporting roller bearing A supporting roller bearing for a rotary drum comprises a supporting roller, supporting on its outer surface a circumferential running surface of the rotary drum. The supporting roller is mounted with axial clearance. A measuring device determines the par... | 03/25/1997 |
| 5568734 | Double layer cooler Bulk material cooling comprises includes a conveyor having a support surface for transporting bulk material from the conveyor inlet to its outlet. A first material supply chute is provided at the inlet for depositing a quantity of relatively cool material... | 10/29/1996 |
| 5553796 | Roller Mill A roller mill having a fixed roller and a floating roller mounted on a frame and driven in opposite directions includes two gear units for the rollers and two independent torque absorbers to minimize the transfer of torque loads to the frame. Each torque ... | 09/10/1996 |
| 5549471 | Cooler grate for a reciprocating grate cooler The invention relates to a cooler grate for a reciprocating grate cooler, with a plurality of grate plate supports extending transversely with respect to the cooler grate and constructed as hollow bodies, on which in each case grate plates are supported s... | 08/27/1996 |
| 5538537 | Method of purifying flue gases A method of desulphurizing flue gases polluted with SO2 comprising cooling the gases to a temperature of about 0.5 to 20° above the dew point of the gases and flowing the gases through a granular sorbent prepared from a mixture of commercial c... | 07/23/1996 |
| 5476377 | Method and grate cooler for hot bulk material The invention relates to the cooling of hot bulk material, particularly cement clinker, ore material or the like, in a grate cooler, in which the bulk material is transported on the cooler grate surface toward an outlet and exposed to cooling gas from bel... | 12/19/1995 |
| 5462234 | Grinding plant and method of grinding and classifying brittle material for grinding The invention relates to a grinding plant and to a method of grinding and classifying brittle material for grinding, in which two classifiers are used. The finer fraction from the first classifier is delivered to a second classifier which separates it int... | 10/31/1995 |
| 5462370 | Tiltable supporting roller bearing In this tiltable supporting roller bearing according to the invention for supporting a rotary drum there are provided a freely rotatably mounted supporting roller and an appertaining bearing structure which is tiltably supported with respect to a stationa... | 10/31/1995 |
| 5437721 | Method of producing cement clinker The invention relates to a method of producing cement clinker from fine-grained cement raw material which after preheating and calcining is burnt in a clinker burning zone divided into two stages and is then cooled. Optimum process conditions, particularl... | 08/01/1995 |
| 5433597 | Rotary kiln inlet An inlet for a rotary kiln comprises a plurality of arcuate segments supported adjacent the inlet opening of the kiln to form a trough protruding through the inlet opening. Each of the segments is hollow and has an opening through which a cooling medium m... | 07/18/1995 |
| 5383610 | Method of operating a material bed roll mill The invention relates to the comminution of brittle material for grinding in a material bed roll mill with two grinding rolls, in which the material for grinding is comminuted between the cylindrical surfaces of the grinding rolls by the application of a ... | 01/24/1995 |
| 4846666 | Method and burner for burning fuel The invention relates to a method and a burner in which a proportion of the fuel is delivered via an outer annular duct and accelerated at the outlet end to a high speed, while a further proportion of the fuel is delivered via a second, inner annular duct... | 07/11/1989 |
| 4792393 | Spiral air sifter having air regulation The invention relates to a sifter in which the spiral for delivery of the air for sifting is divided into a plurality of channels lying one above another in which elements for setting the quantity of sifting air delivered to the individual channels are pr... | 12/20/1988 |
| 4778381 | Reciprocating grate drive apparatus The invention relates to apparatus for driving a thrust grate cooler, in which the division of force is provided on the low-moment side between and electric motor and a reduction gear system. Such a construction is distinguished by substantially reduced e... | 10/18/1988 |
| 4771641 | Sample divider A sample divider for fine-grained loose material samples contains - arranged symmetrically below one another - a sample delivery pipe, a divider and collecting vessels for sub-samples provided below the divider. The divider is constructed as a divider con... | 09/20/1988 |
| 4762489 | Cooling apparatus The cooling apparatus which is preferably constructed in the form of a grate cooler contains in its material inlet portion a material transfer arrangement with at least two rows lying behind one another of transversely extending air boxes which can be sup... | 08/09/1988 |
| 4762220 | Side scraper for a heap of loose material The invention relates to a side scraper which serves for the discharge of loose material from a heap of loose material and in which the free space between the surface of the heap to be cleared and the upper face of the scraper scoops is covered by a suppo... | 08/09/1988 |
| 4756093 | Apparatus for heat exchange between gas and fine-grained material The invention relates to apparatus for heat exchange between gas and fine-grained material containing a plurality of cyclone-like separators which are arranged one above the other and have bent central axes. Such a heat exchanger is distinguished by a par... | 07/12/1988 |
| 4741808 | Coke oven door The invention relates to a coke oven door with a sealing element which consists of a metal sealing strip and a crowned metal diaphragm. When the sealing strip is pressed onto the door frame a wedge-shaped gap is produced between the sealing strip and the ... | 05/03/1988 |
| 4737294 | Matrix-ring magnetic separator The invention relates to a matrix ring magnetic separator the induction bodies of which are formed by sieve nettings which are arranged vertically and stacked behind one another in the direction of the magnetic field in such a way that the intersections o... | 04/12/1988 |
| 4732561 | Apparatus for cooling hot material In apparatus for cooling hot material, a material transfer stage is provided in the material inlet of a cooler and acted on by cooling air. The transfer stage has a plurality of air-permeable carrier elements spanning the breadth of the inlet. At least on... | 03/22/1988 |
| 4732334 | Apparatus for crushing brittle material for comminution The invention relates to apparatus for crushing brittle material for comminution which is subjected to individual grain crushing and material bed crushing in a roll crusher at high pressure and with agglomerates being formed, these agglomerates being loos... | 03/22/1988 |
