baber/WOPTO huggingface dataset:
Patent DE-3904305-A1 (DE)
Title: Bulk-material bunker, in particular underground bunker for mining operations and the like
Inventor: WASCHULZICK WALTER
IPC: B65G65/32
Filed: 1989-02-14
Abstract: The invention relates to a bunker, preferably an underground bunker (roadway bunker), with a feed conveyor (6) arranged above the bunker space (5), a discharge conveyor (9) arranged at the bottom bunker outlet (11), and a distributing and clearing conveyor (12) which delivers the storage material supplied by the feed conveyor (6) into the bunker space (5) and withdraws it from the bunker space (5) during the unloading. According to the invention, the delivery point (7) of the top feed conveyor (6) is arranged in the top area of a drop shaft (8), in the bottom area of which the withdrawal point (11) with the discharge conveyor (9) is located. In this arrangement, a cover consisting of a slide (24) of the like is provided, with which the drop shaft (8) can be closed in its cross-section so that the bulk material delivered by the feed conveyor (6) can be received by the scraper conveyor (12) and transferred into the bunker space (5). When the slide (24) is opened, the bulk material delivered by the feed conveyor (6) falls directly in the drop shaft (8) down onto the discharge conveyor (9). The bulk material can also be discharged from the bunker space (5) by means of the scraper conveyor (12). <IMAGE>
Patent DE-3904709-A1 (DE)
Title: Method of starting the working longwall face
Inventor: STOECKER HORST DR ING
IPC: E21C41/18
Filed: 1989-02-16
Abstract: The invention relates to a method of starting a longwall face equipped with a self-advancing support, a conveyor and a winning machine, in which the preliminary work required for preparing the face equipment is to be reduced and the starting operation is to be simplified. To this end, provision is made for the face equipment to be prepared in the gate road, for it to be shifted in stages in the working direction into the worked face area as excavation commences, and, to protect the gate road to be kept open, for a dam-like support to be placed behind the face by prefabricated support elements being moved to the location of the roadway side of the gate road in accordance with the unit of advance when shifting the face equipment.
Patent DE-3906108-A1 (DE)
Inventor: SCHENKER GILBERT DR
IPC: C07C29/80
Filed: 1989-02-27
Abstract: In a process for producing esters of (meth)acrylic acid using straight-chain, saturated or unsaturated fatty alcohols containing 8 to 22 carbon atoms, the fatty alcohols are distilled over sodium boranate and the purified fatty alcohols so obtained are reacted with (meth)acrylic acid to form esters of (meth)acrylic acid with Hazen colours less than 500, in particular less than 250.
Patent DE-3908984-A1 (DE)
Title: Vertically adjustable platform stand
Inventor: STASCHEIT KURT
IPC: E04H3/26
Filed: 1989-03-18
Abstract: In order to construct theatre stages or the like, use is made of vertically adjustable platform stands which are provided with a platform (2) borne by an upper frame (1), with four arrestable supporting scissor mechanisms (6, 7) which can be articulated on the corners of the upper frame (1) and of a lower frame (3), and with a vertical-adjustment device which can be driven by a motor. In order to achieve inexpensive stands which can also be vertically adjusted by remote control, the invention provides that the vertical-adjustment device is composed of four spreading members (25) which each act on the supporting scissor mechanisms (4,5,6,7), of four cables (9,10,11,12) which are each connected to the spreading members (25) and of a canned motor (8) or the like which is arranged on the lower frame (3), in the longitudinal centre of the platform stand. <IMAGE>
Patent DE-3910869-A1 (DE)
Title: Control unit for gas turbines
Inventor: ANNING ANDREW JOHN
IPC: H02P23/00
Filed: 1989-04-04
Abstract: The invention relates to a control unit for gas turbines which, in order to avoid the typical overshoot in the case of rapid and large changes of speed, brings about an asymptotic adjustment of the actual speed to the new speed demanded in that instead of the new set speed actually predetermined it initially sets a substitute set value, which reduces the speed differential actually demanded and then adjusts the said substitute set value to the actual new set value according to an iterative algorithm.
Patent DE-3915167-A1 (DE)
Inventor: CLAUSEN EIVIND
IPC: G11B5/41
Filed: 1989-05-09
Abstract: A tape machine cleaning apparatus comprising a housing 46', a cleaning member 76 mounted in the housing to be moveable to clean a head of the machine; drive means 78' in the housing to move the cleaning member; a first drive cartridge 120 adapted to be removably mounted in the housing to form a drive connection to the drive means to cause the cleaning member to move; and a second cleaning cartridge (150, Fig 6) adapted to be removably mounted in the housing in place of the first cartridge and having a cleaning pad (156) to engage and clean a drive member 16 of the machine. The drive means 78' in the cartridge 120 drives a gear wheel to oscillate a cleaning pad 76' sideways across a head in known manner (Fig 1). The cartridges are retained in the housing by a tilt/slide movement allowing interengagement of pin 142 and slot 138. <IMAGE>
Patent DE-3916775-A1 (DE)
Title: Machine for edge profiling of plate - has machining unit guided by four-bar chain linkage to avoid use of slideways
Inventor: FICKERT PETER DIPL ING
IPC: B24B9/06
Filed: 1989-05-23
Abstract: Machines for radiusing the edges of stone slabs by grinding are subject to heavy wear of open slideways used to guide the grinding unit in a circular path about the edge being machined. This is avoided by the use of two arms (2) and (3) which are pivotted about points (6) and (7) respectively. The machine body (1) is attached to the arms at pivots (13) and (14), and attached to the machine body at pivot (11) is the grinding unit (5,10). A connecting rod (8) couples the arms and grinding unit so that they move together. When the machine body pivots about (6) and (7) a radius is produced on the edge of the work (4) by the wheel (10), whose face remains always tangential to the work surface. Different radii are produced by axial-adjustment of the wheel position. USE/ADVANTAGE - Reduced machine wear and greater workpiece accuracy.,
Patent DE-3920744-A1 (DE)
Title: Sharp contour discharge printing of synthetic textiles - using alkali paste and cyan:azo dyes
Inventor: HAMPRECHT RAINER DR
IPC: D06P5/17
Filed: 1989-06-24
Abstract: Alkali discharge printing on synth. textiles is effected in conventional manner using an alkali-working paste along with cyanazo dyes of formula (I) where X = H, F, Cl, Br, I, R, CO2R, COR' CN or CF3; Y and Z = H, Me, Cl or Br; R = 1-4C alkyl or 5-6C cycloalkyl; R1 = as for R or phenyl opt. substd. by 1-4C alkyl or Cl; R1 and R2 = 1-4C alkyl opt. substd. by OH or by 1-4C alkoxy; and R3 and R4 = H or Me. X = CO2R (esp. CO2Me or CO2Et), Cl or Br; Y and Z = H or Cl; R1 and R2 = Me or Et; and R3 and R4 = H, with an esp. prefd. (I) being of formula (II). USE/ADVANTAGE - Polyester textiles can be given sharp contour discharge printings by conventional processes using dyes (I) known from eg. DE 3736088.
Patent DE-3920752-A1 (DE)
Title: Gas pressure spring with cylinder - contains operating piston, with annular friction piece and control
Inventor: HAHN-BANSBACH EDGAR
IPC: F16F9/02
Filed: 1989-06-24
Abstract: The gas-pressure spring has a cylinder (1) containing an operating piston (25) is joined to a piston rod (10). The operating piston (25) contains an annular friction piece (45) with control for adjusting the amount of frictional force with variable compressive force on the inner wall (9) of the cylinder (1). The end (23) of the piston rod (19) cooperating with the pressure piece on the operating piston (25) is in the form of a threaded spindle. USE/ADVANTAGE - The gas pressure spring can be used for different purposes.
Patent DE-3921992-A1 (DE)
Title: Fast image-sensing device for a video tape recording apparatus
Inventor: BONG-JOO KIM
IPC: G11B15/665
Filed: 1989-07-04
Abstract: The invention relates to a fast image-searching device for video tapes, it being intended for the tape to be subjected to less wear than in the past and likewise for separate pick-up heads to be avoided. According to the invention, only one half of the video tape is stretched over a movable, flexibly mounted supporting arrangement and brought to bear against a signal pick-up head, without the pick-up head drum being wrapped around by the video tape for normal picture reproduction. Furthermore, a cam control device with a crank-rocker linkage is provided, in order to ensure the tensioning and bringing-to-bear movement for the magnetic tape. The invention can be used for video tape recording and reproducing apparatuses.
Patent DE-3937242-A1 (DE)
Inventor: PUERRER JOSEF
IPC: A01B59/043
Filed: 1989-11-09
Abstract: The invention is directed at a device for the movable mounting of an agricultural machine on the three-point linkage of a three-point suspension by means of a diagonal-tie fastening (7), pivotable about a transverse and a vertical axis, and two stabilising struts (23, 24) of variable length which engage on the three-point linkage (1) at a lateral distance next to one another, the diagonal tie (7) engaging on the three-point linkage (1) approximately level with the lower-link connections (2) between these and the stabilising struts (23, 24) engaging on the three-point linkage (1) approximately level with the upper-link connection (3). <IMAGE>
Patent DE-3937448-A1 (DE)
Title: Hydraulic system for actuating rotating chucks - has three separately controlled stages for fast approach, clamping and force retention
Inventor: BALD HUBERT
IPC: B23B31/30
Filed: 1989-11-10
Abstract: The design is intended for wider application to machine tools such as lathes with rotating spindles in which work or tool shanks may be clamped by a chuck having a drawbar (116) moving backwards and forwards through the centre of the spindle (104).  A first stage fast approach to the work is obtained by programmed axial movement of a ring (150), the movement being trnasferred to the drawbar irrespective of spindle rotation by way of the bearing (140). To clamp the work a second stage movement under high pressure is obtained by admitting pressurised oil through passages (160,162) to either side (116,118) of the piston (102) coupled directly to the end of the drawbar.  A third hydraulically controlled stage maintains a min. clamping pressure. USE/ADVANTAGE - Rotating chuck hydraulic system is capable of universal application.  Large fast approach distance allows easy clamping of work of widely varying dia.
Patent DE-3939605-A1 (DE)
Title: Fluid pressure spray appliance - has air inlet valve with spring element for automatic pressure compensation
Inventor: PETZ GUENTER
IPC: B05B9/08
Filed: 1989-11-30
Abstract: The appliance has a housing with electrically operated pump, and pressure tube with atomiser nozzle. The housing may be coupled with a fluid tank, and the suction tube from the pump extends sealed into the fluid tank and the fluid. The tank has an air inlet valve (13). In inactive position of the pump the valve closure element (15) automatically closes the air inlet valve due to a return force (16). In working position of the pump, the closure element automatically opens the air inlet valve by vacuum action, against the return force, for pressure compensation in the fluid tank.
Patent DE-3939983-A1 (DE)
Title: Super-twist LCD - contg. optically active component in nematic mixt. of two liq. crystal components with positive dielectric anisotropy
Inventor: FINKENZELLER ULRICH DR
IPC: C09K19/42
Filed: 1989-12-02
Abstract: Supertwist LCD has 2 plane parallel carrier plates, forming a cell with the surround; a nematic liquid crystal (LC) mixt. (I) with positive dielectric anisotropy in the cell; electrode layers with superimposed orientation layers on the inside of the plates; a pitch angle between the longitudinal axis of the mols. to the surface of the plates and the plates of ca.  1-30 deg.; and a twist angle in the LC mixt. from one orientation layer to the other of 160-360 deg.  The novelty is that (I) consists of 20-70 (wt.)% LC component A, with a dielectric anisotropy of over +1.5; 20-80% LC component B, with a dielectric anisotropy of under +1.5; and an optically active component C in an amt. giving the entire mixt. a ratio of film thickness (between the plates) and natural pitch of ca. 0.2-1.3 and a ratio of elastic constants in spreading and bending K33/K31=min. 1.2.  LC component A consists of a 2-alkyl-, 2-(trans-4-alkylcyclohexyl)- or 2-(trans-4-alkylcyclohexyl) alkyl-5-cyano-pyridine cpd. of formula (II); where R = 1-7 C n-alkyl or 2-7 C trans-n-alkyl; m = 1 or 2; n = 0 or 1; and opt. other cpd(s). All components are known cpds. or can be prepd. by conventional methods. USE/ADVANTAGE - (I) has a nematic phase range = min. 60 K; viscosity = max. 30 mPa.s at 20oC; ratio of the dielectric aniso-tropy (delta-epsilon) to dielectric constant in the direction of the short axis of the LC mol. (epsilon perp.) = ca. 0.2-2.0; prod. of the double refraction (delta-n) and the film thickness of (I) = 0.1-2.5 microns; dielectric constant, epsilon perp. = 3 or more; and dielectric anisotropy, delta-epsilon = 5 or more (all claimed).  (I) is claimed for use in the prodn. of supertwist LCDs with high characteristic gradient.
Patent DE-4001649-A1 (DE)
Title: Cutter for trimming sides of books - has angular discharge drive combined with lifting rods to gather trimmed stacks
Inventor: SCHAEFFER JOHANN DIPL ING
IPC: B26D7/32
Filed: 1990-01-20
Abstract: The triple cutter machine for simultaneously cutting three sides of books or brochures has a feed and a discharge assembly, and a replaceable cutting table. The discharge drive (9) of the discharge assembly (11) has a vertical (9.1) and a horizontal (9.2) face with respect to the upper surface of the cutting table (4). There are two vertically movable rods (13) activated by an actuator (17) within the framework of the machine, which project intermittently above the surface of the table (4). USE/ADVANTAGE - For dealing accurately with very thin copies of books or brochures.
Patent DE-4002186-A1 (DE)
Title: Photocopier with document handler - has alignment control to position document manually or with handler feed
Inventor: WATANABE JUNJI
IPC: G03G15/00
Filed: 1990-01-25
Abstract: The copier has documents alignment stops at each end of the scanner movement. The first alignment stop (9) is used for both manually loaded documents and handler fed documents. This stop is on a pivot mounting to operate between two modes of control. The handler moves the documents over the stop, which tilts to allow passage of the document and tilts up to align the document edge. The scanned documents are returned to an out tray. The scan position is fitted with a pressure hold (12) to ensure the documents are flat.
Patent DE-4004635-A1 (DE)
Title: Artificial tooth anchoring system - has two root-type formations instead of flat lower part, tooth base being hollowed inwards
Inventor: GYOERY KALMAN PETER
IPC: A61C13/093
Filed: 1990-02-15
Abstract: The two roots (2,3) are embedded in the front and rear walls of the hard part (10) of the prosthesis base.  The flanks of the thus formed tooth base spring away when biting load occurs in either of two directions (A,B), thereby absorbing a part of the bite force. The tooth base transmits a vertiacl bite pressure over a larger surface of the prosthesis base  and the tooth ridge beneath it. A tooth anchored in this manner does not become loose, as is often the case with known artificial teeth. Also, much more space can be used with a hydro-dynamic prosthesis for the hydraulic cushion embedded in the soft lower lining. USE/ADVANTAGE - In dentistry, to provide an individual artificial tooth which overcomes the static anchoring disadvantages with known teeth which have a virtually flat base.
Patent DE-4007216-A1 (DE)
Title: Operating instruction device for input instruction screen positioning - controls display element according to selected reference coordinate data groups
Inventor: MORI SHUICHI
IPC: G06F3/048
Filed: 1990-03-07
Abstract: The operating instruction device contains a display element, a position coordinate detector corresp. to the display screen and a device for determining to which region of the screen the position coordinates for an instruction signal corresp. The region determining device stores a number of reference coordinate data groups corresp. to a number of screen response region groups. A region image signal generated according to a selected reference region data group is used to control the display element. USE/ADVANTAGE - For generatnig operating instructions corresp. to screen positions of input instructions with improved user operating characteristics. Inbuilt audio equipment in motor vehicle with controls and display elements as compact as possible, yet avoiding misoperation.
Patent DE-4009041-A1 (DE)
Title: Winder for webs of material - has rotary drive to allow winding of several webs side by side on winding shaft
Inventor: SCHMIDT SIEGFRIED
IPC: B65H19/22
Filed: 1990-03-21
Abstract: The feed is for winding up lengths of material into rolls on central driven winding shafts (3) which are mounted with parallel axles (4) on two winding parts has the winding shafts designed as radially stressed friction shafts. The second bearing block for each winding shaft is mounted separate from the winding carriage (7) fixed on the winding spot and supports the end of the winding shaft where it is secured against axial displacement. The rotary drive for the winding shaft is attached to this winding shaft end shilst the other end can be engaged and disengaged on a bearing (12) mounted on the bearing block (9`) of the winding carriage (7) by moving the winding carriage into the winding spot in the direction of the winding shaft axle. The winding carriage has a lifter (13) which takes up the finished wound roll (2) as the winding carriage moves out of the winding spot. USE - Several material webs can be wound up simultaneously side by side on the winding shaft of each winding spot.
Patent DE-4009137-A1 (DE)
Title: Control system for laser write head - has several processors dedicated to different tasks which operate in parallel resulting in speedy adaption and integration
Inventor: ENDRES MANFRED DIPL ING
IPC: G06K15/10
Filed: 1990-03-21
Abstract: The laser control unit (SK) associated with a Laser Write Head derives its instructions from a computerised system and produces both standard lettering and unconventional lines by combining basic form elements stored in an intermediate Store (SP).  Text and scribe parameters derive from a micro computer (EE) which provides processing instructions to a processor (VE) which uses the memory base stored in the intermediate store (SP) as well as in the auxiliary store (VEZ).  The latter operates in parallel to take up overloads.  All assembled form packages are supplied with sequential reference numbers and passed on to a digital/analogue converter (PSU).  Its output is applied to a positional head setting machine (SK) causing the Laser Head to produce the writing. The objectives of the arrangement are: reducing time delays and bottlenecks in the form assembly process; also, providing greater independence in the passing on to the laser head of positional instructions and other parameters such as the thickening or thinning of lines. ADVANTAGE - Allowing several sub-functions to operate in parallel, performance speed is increased.
Patent DE-4009774-A1 (DE)
Title: Heating regulator programme data input and updating
Inventor: ABEL HELMUT
IPC: F24D19/10
Filed: 1990-03-27
Abstract: The programme data input and updating is used to define a variable temp. profile for the heating regulator, allowing different required room temps. to be used for different points during the day.  The user enters specified required temps. via a setting device, from which a basis profile programme is obtained with subsequent correction of the basic profile via a learning process. Different temp. programmes can be used for weekdays and weekends.
Patent DE-4015261-A1 (DE)
Title: Electromechanical actuating mechanism for lathe chuck - has two=stage actuation of chuck derived from main spindle drive and one additional motor
Inventor: BALD BRIGITTE
IPC: B23B31/28
Filed: 1990-05-12
Abstract: The chuck actuating mechanism is especially applicable to lathes, where it operates to move the chuck drawbar (130) in two stages - an initial work centering stage and a final work clamping stage. The final clamping stage is by rotation of the mainspindle under control of the powerful mainspindle drive motor.  This rotates the screw drive (116) and applies the  clamping force through the spring (136). The initial work centering movement is performed with the spindle stationary, the drive to the screw (122) being derived from the additional motor (158) driving through a worm and wheel (154,156). A different construction based on the same principles is used to allow bar to pass through the spindle. USE/ADVANTAGE - Compact design. Low cost standard motors can be used. Compatible with other machine control functions.
Patent DE-4035129-A1 (DE)
Inventor: HEDDERICH HANS-K
IPC: F16J15/34
Filed: 1990-11-05
Abstract: The invention concerns a slide-ring packing designed to be fitted on the inlet and outlet of a rotary drum to provide a gas-tight seal at the interfaces between the rotating drum and the stationary inlet and outlet housings. Described is a self-supporting or floating packing with a self-centering capability which ensures that the slip surfaces always move parallel to each other, the profiling of the slip surfaces (F10, F8d; F30, F28d2) prevents them from slipping away from each other sideways, the coaxial design of the sealing surfaces ensuring that said surfaces remain physically locked one inside the other. This gives a physically locking gas-tight seal with low-wear characteristics and high reliability.
Patent DE-4039495-A1 (DE)
Title: Thermocouple element fitted to centre of rotary grate of gas generator - in fixing, positioning and sealing arrangement
Inventor: HUNGER ANDREAS DIPL ING
IPC: G01K1/14
Filed: 1990-12-11
Abstract: Arrangement secures, positions and seals a sheath-type thermocouple element in the centre of the rotary grate of a pressure-type gas generator. Several features and variants are claimed. USE/ADVANTAGE - Other thermocouple arrangements for measuring these gas-generator temps. have not been able to withstand the rough working conditions of the rotary grate without giving trouble. The proposed arrangement which overcomes such difficulties enables the thermocouple element to be fitted above the grate centre, in a position where it can assist in the improved operation of these gas generators.
Patent DE-4040807-A1 (DE)
Title: Flue gas suction system - for desulphurisation reactor of heat generating plant
Inventor: STROEER KURT DIPL ING
IPC: F23J15/08
Filed: 1990-12-14
Abstract: In a system for flue gas suction from a desulphurisation reactor which has an additive distributor and a gas inlet channel in its top region and a gas suction channel in its funnel region, the suction channel (4) is integrated via an entry portion (7) with a collector (8) in the reactor wall (6), the entry portion (7) being joined to a circular array of spaced individual downpipes (12) in the reactor interior. ADVANTAGE - The system requires no internal fittings for hot gas mixing, produces uniform gas and heat flow and is self-cleaning.