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| Number | Title | Issue Date |
| 4939998 | Ballast tamping machine In a mobile machine for tamping ballast under ties of a railroad track, which comprises a machine frame, spaced undercarriages supporting the machine frame for mobility on the railroad track in an operating direction, and a ballast tamping assembly mounte... | 07/10/1990 |
| 4938239 | Mobile track bed cleaning machine and method A mobile machine for cleaning a track bed comprises a suction arrangement on the machine frame, the suction arrangement comprising a suction head having an inlet port, a suction conduit, a ventilator connected to the suction head by the suction conduit fo... | 07/03/1990 |
| 4938095 | Safety module for machine table in an assembly line A safety module for a machine table comprises two vertical columns, a safety plate supported by the vertical columns for protecting the machine table and designed to aid in the prevention of accidents, cantilevers connecting the columns to flanges at a fr... | 07/03/1990 |
| 4937924 | Apparatus for needling a felt from one side In order to ensure a desirable withdrawal of the felt in an apparatus for needling a felt from one side, the stripper plate (3) is provided on that side which faces the support (2) for the felt with guide ribs (7), which extend between the longitudinal ro... | 07/03/1990 |
| 4935035 | Process of producing dried wood chips Wood from broad-leaved and/or coniferous woody plants, particularly bushwood or waste wood or wood obtained in wood-growing plantations, is processed in that wood in a green state is chopped to form wood chips and is mixed with accompanying or additional ... | 06/19/1990 |
| 4931369 | Contact arrangement for the battery of an in-ear hearing aid A contact arrangement in a housing including a cover, the housing and cover defining a battery chamber having an opening closable by the cover, the chamber having dimensions substantially corresponding to the dimensions of a button battery to be received ... | 06/05/1990 |
| 4929816 | Electric flash-butt welding machine and method of providing a welded joint between adjacent ends of rail sections A mobile electric flash-butt welding machine comprises machine frame, undercarriages supporting the machine frame on a railroad track, and a drive for propelling the machine frame along the track. The machine frame carries a hydraulic fluid supply pump, a... | 05/29/1990 |
| 4928599 | Continuously advancing track leveling, lining and tamping machine A continuously advancing machine for track leveling, lining and tamping comprises a main frame, a single undercarriage supporting the main frame and the main frame having a portion projecting in the track direction from the single undercarriage, a drive c... | 05/29/1990 |
| 4928498 | Method and device for compression of gases The invention relates to a method and a device for compression of gases, in particular of air, within a compressed air piping system. The air drawn in for the compressor is cooled below 0° C. within a freeze-dehumidifer in a cooling channel. The supply o... | 05/29/1990 |
| 4923184 | Clamping device A clamping device, more particularly a toggle lever clamping device is devised for clamping workpieces and comprises an actuator cylinder (3) with a mounting head (23), said mounting head protruding from the piston rod and being provided with the control ... | 05/08/1990 |
| 4922828 | Ballast tamping tool A ballast tamping tool for attachment to a reciprocating tamping drive of a ballast tamping machine comprises a shaft having an upper end affixed to the tamping drive and a tamping blade detachably mounted on a lower end of the shaft. A plug-in, form-fitt... | 05/08/1990 |
| 4911246 | Ballast cleaning machine A ballast cleaning machine comprises a machine frame comprising two frame parts, one of the ends of one machine frame part adjoining one of the ends of the other machine frame part while the machine frame part ends opposite to the one ends are remote from... | 03/27/1990 |
| 4911599 | Mobile installation for loading, transporting and unloading A mobile installation for loading, transporting and unloading track parts such as ties on, in and from open top railroad cars including a train mounted for mobility along a railroad track and having a plurality of open top railroad cars. Adjacent ones of ... | 03/27/1990 |
| 4905551 | Apparatus for fixing workpieces to be machined and method of fixing a workpiece by means of that apparatus A fixing apparatus (3) for fixing a workpiece (2) to be machined comprises at least two jaws (6,7), which are individually adjustable and are preferably adapted to be fixed in position. In order to permit a workpiece (2) to be fixed exactly in a desired p... | 03/06/1990 |
| 4905604 | Mobile switch leveling, lining and tamping machine A mobile switch leveling, lining and tamping machine comprises a vertically and laterally adjustable leveling and lining tool carrier frame linked to the machine frame, a pair of flanged wheels supporting the carrier frame on a main track for mobility the... | 03/06/1990 |
| 4904102 | Base plate for a loose-leaf holder A base plate for a closure mechanism of a loose-leaf holder for sheets defining holes along an edge thereof, the base plate carrying fixed, straight prongs for receiving the holes of the sheets and pivotal prongs cooperating with the fixed prongs, and the... | 02/27/1990 |
| 4900002 | Sheet folding apparatus An apparatus for folding sheet material comprises a rotatable magazine comprising two folding plates having end edges extending parallel to each other for holding the sheet material with portions thereof projecting beyond the edges of the folding plates, ... | 02/13/1990 |
| 4896616 | Seed planter A device for sowing individual seed grains spaced from each other comprises a discharge disc which constitutes the rear wall of a seed box and has suction openings for sucking the seed grains and discharges the grains seed through a discharge passage of t... | 01/30/1990 |
| 4896460 | Rail grinding machine A rail grinding unit comprises a support frame having opposite ends, an undercarriage having flanged wheels supporting each support frame end on the rails for mobility along a railroad track, a vertically adjustable carrier frame mounted on the support fr... | 01/30/1990 |
| 4893565 | Mobile track switch working machine A mobile track working machine comprises a machine frame and an apparatus for lifting and laterally moving the track in a switch section, which apparatus comprises a vertically and laterally movable tool carrier frame, power-actuated drives linking the to... | 01/16/1990 |
| 4892180 | Method and apparatus for extracting individual parts from a conveyor The invention relates to a method and device for supplying and extracting assembly parts which are fed to an extraction point in a previously determined aligned position. The assembly parts acts upon by a conveying force are carried into a singling and/or... | 01/09/1990 |
| 4892151 | Ballast cleaning machine A ballast cleaning machine comprises a chain for excavating the ballast and for conveying the excavated ballast to a discharge end, a screening installation arranged to receive the excavated ballast from the discharge end of the excavating and conveying c... | 01/09/1990 |
| 4892040 | Ballast tamping machine In a mobile machine for tamping ballast under ties of a railroad track, which comprises a machine frame, spaced undercarriages supporting the machine frame for mobility on the railroad track in an operating direction, and a ballast tamping assembly mounte... | 01/09/1990 |
| 4891870 | Needling apparatus for making a patterned felt web A needling apparatus for making a patterned felt web comprises at least one needle board, which is connected to a needle board drive, a feed drive for feeding the felt web through a felt guide between a felt support and a stripper, and means for adjusting... | 01/09/1990 |
| 4890715 | Method of and a device for coding workpiece carriers in a production plant Workpiece carriers are fed to successive work stations along conveyor tracks at which stations work operations are performed on individual parts on the carrier and in which a defect signal is allocated when appropriate. After a work operation has been per... | 01/02/1990 |
| 4887404 | Translucent glass brick made of opal glass with light diffusible crystal particles A translucent glass brick for use in a building wall as a lighting wall is made of a translucent opal glass in a form of a hollow glass block. The opal glass has an opal appearance and a mean light transmittance of 20-80%, in a glass thickness of 10 mm, f... | 12/19/1989 |
| 4884509 | Mobile tie gang apparatus A mobile apparatus for sequentially exchanging selected consecutive groups of old ties for groups of new ties while retaining a groups of old ties between the selected old ties for support of the mobile apparatus on the railroad track, which apparatus com... | 12/05/1989 |
| 4884330 | Assembly method A method of assembling a plurality of individual parts to manufacture a workpiece, which comprises the steps of placing each single individual part in a holder in a preparation stage, the holder holding each single individual part in a predetermined posit... | 12/05/1989 |
| 4884210 | Method and machine for a balancing centering of workpieces which are to be machined only at certain portions, particularly crankshafts In a method and machine for balancing centering a workpiece, such as a crankshaft, to be machined only at certain portions and in which the workpiece is transversely displaced with respect to an axis of rotation so as to minimize any unbalance and is subs... | 11/28/1989 |
| 4883720 | Process of marking hot steel ingots and product For the provision of durable and easily legible inscriptions by jet spraying on steel ingots when they are at an elevated temperature, a nickel or iron metal powder having a largest particle dimension not in excess of 0.075 mm and a zirconium oxide powder... | 11/28/1989 |
| 4881467 | Continuously advancing track maintenance or rehabilitation machine A continuous action track maintenance or rehabilitation machine comprises a first machine frame, a carrier frame arranged between the undercarriages supporting the first machine frame on the track, ballast tamping and track lifting and lining units vertic... | 11/21/1989 |
| 4878435 | Mobile tie exchange machine arrangement A mobile machine arrangement for exchanging old track ties for new track ties comprises first and second machine units, a drive for propelling each machine unit independently along the track in an operating direction, an operator's cab for each machine un... | 11/07/1989 |
| 4867676 | Thermal decomposition furnace An apparatus for the thermal decomposition of a fluid toxic substance contained in a gas comprises a cylindrical main combustion chamber and a secondary combustion chamber arranged thereabove. An inlet opening leads into the main combustion chamber at an ... | 09/19/1989 |
| 4863322 | Clamping device for fising a disklike rotary cutter to a toolholder A clamping device (5) is provided, which serves to fix a rotarty cutter (3, 3a) to a toolholder (2, 2a). The rotary cutter (3, 3a) has a planar radial contacting surface (15, 15a) for engaging a planar radial end face (16, 16a) of the toolholder. Load-app... | 09/05/1989 |
| 4863150 | Device for actuating tools, in particular, clamping means, subject to the application of pressure The invention provides a device for actuating a clamping tool means by fluid pressure and for monitoring the fluid pressure, which comprises a carrier for a workpiece and the clamping tool means, a first mounting element on the carrier, a second mounting ... | 09/05/1989 |
| 4862806 | Mobile tie gang apparatus and tie exchange method A mobile apparatus for sequentially exchanging selected consecutive groups of old ties in an existing railroad track for groups of new ties while retaining groups of old ties therebetween to support the mobile apparatus on the track, comprises at least on... | 09/05/1989 |
| 4860881 | Apparatus for conveying assembly parts An apparatus for conveying assembly parts from a storage bin to a singling and/or orienting station has a conveyor which includes an endless carrier extending from an inlet in the bin to a discharge end whence the conveyed assembly parts are thrown from t... | 08/29/1989 |
| 4858696 | Mobile ballast cleaning machine A machine for cleaning ballast along the shoulders of a railroad track, which comprises a machine frame, an endless ballast excavating and conveying chain vertically adjustably mounted at each machine frame side, a ballast screening installation arranged ... | 08/22/1989 |
| 4858402 | Building board, particularly gypsum plasterboard In order to facilitate the placing of gypsum plasterboards, the boards are provided on their surface with a marking, which comprises length scales extending along regularly spaced apart lines which are parallel to the edges of the board. The marking may p... | 08/22/1989 |
| 4858389 | Apparatus for grinding twist drills Apparatus for grinding twist drills comprises a drive shaft and a grinding wheel, which is coupled to said shaft and is mounted thereon to be axially movable and tiltable relative to the shaft and is spring-loaded toward a drill-guiding structure facing t... | 08/22/1989 |
