baber/WOPTO huggingface dataset:
Patent DE-3325217-A1 (DE)
Title: Plastic sack for granular or powdery bulk products and method of producing and closing the sack
Inventor: LISSNER HANS
IPC: B65D33/02
Filed: 1983-07-13
Abstract: The invention relates to a sack for granular or powdery bulk products consisting of a tubular plastic film which is closed at both ends by a transverse weld and has a slit serving as filling opening in the front wall near to one transverse weld. The sack is closed by welding a covering sheet made of film over the slit. In order to prevent the slit from being torn open during filling via a filling nozzle and in order to maintain satisfactory welding without impairing the rear wall, a slit strip serving as heat barrier and reinforcement is welded onto the front wall before the sack is filled, said slit being congruent with the slit in the front wall. During the subsequent welding of the covering sheet between welding jaws which clamp the covering sheet, the front wall and the back wall, said heat barrier prevents the back wall from being welded to the front wall or weakened by displacement of softened film material. Additionally, the front wall which is greatly loaded in the region of the slit is made more rigid and reinforced by the welded-on strip, which has an advantageous effect both for cleaning and for handling during opening, filling and closing. <IMAGE>
Patent DE-3326857-A1 (DE)
Title: Head strip for index cards
Inventor: BOOS PAUL DIPL ING
IPC: B42F21/06
Filed: 1983-07-26
Abstract: The invention relates to a head strip for index cards or index sheets, especially for hanging cards for deadline monitoring files, having a strip attached to the head piece and extending over the entire length thereof, the said strip consisting of a plurality of transparent strips which are integrally connected to each other at the upper head piece and extend parallel to each other, and between every two of which a longitudinal slot is formed receiving displaceably guided slides and/or signalling means. The strip masking the upper longitudinal slot forms a slot-shaped opening, for the access of an actuating pin or the like, over the entire length of the head piece, with its lower edge and a strip located below the latter, this opening being widened at one side of the head piece for the introduction of the signalling means into the longitudinal slot. For the resilient mounting and/or engagement of the signalling means which are displaceably guided in the longitudinal slot, the upper strip has transverse deformations extending over the entire length of the head piece and adapted to the signalling means.
Patent DE-3331944-A1 (DE)
Title: Panel heating, in particular floor heating
IPC: F24D3/16
Filed: 1983-09-05
Abstract: A panel heating system comprises a plurality of panels and has relieved corner sections, at which pieces of connection pipe are formed, for connecting to further panels. According to one embodiment, the corners are relieved in the form of a Z, whereas in the case of another embodiment the corners with the pieces of connection pipe are flattened off. According to one embodiment, each panel is taken up by a bearer element, the surface of which facing the bearer element has a shaping which is complementary to the surface configuration of the downwardly facing surface of each panel.
Patent DE-3336840-A1 (DE)
Title: Machine for mass transfer and for the separation of dust and droplets
Inventor: BRAUER HEINZ PROF DR ING
IPC: B01D47/16
Filed: 1983-10-11
Abstract: The invention relates to a machine for the more rapid performance of mass transfer processes between gases (vapours) and liquids, as well as for the intensive separation of dusts and very fine droplets. The machine is noteworthy in that it generates, per unit volume of the machine, a very large interface between the phases involved in the mass transfer or in the separation process, and in that it periodically renews this interface. This is achieved in that, in a periodic sequence subject to the design, the liquid involved in the process is broken up into droplets and recoalesced. The machine according to the invention essentially comprises a rotor which moves in a fixed casing. The rotor is similar to a radial blower. It has spiral-shaped ducts with perforated walls. Through these ducts, the gas or the vapour flows either radially outwards or inwards. At the edges of the perforations, the liquid is atomised, while moving radially outwards from duct to duct. This process is illustrated in Figure 1. Thus it is possible to set up in the rotor a counterflow or a parallel flow of the phases involved in the mass transfer or in the separation process. <IMAGE>
Patent DE-3341512-A1 (DE)
Title: Ignition device for a combustion plant burning liquid fuel
Inventor: BARTELS FRIEDRICH
IPC: F23Q5/00
Filed: 1983-11-17
Abstract: In the ignition device, having an arc ignition plug, a preheated surface is provided adjacent to the electrodes of the arc ignition plug. The preheated surface is arranged in the region of an arc produced by the electrodes. The arc ignition plug and the heating element are combined into one unit.
Patent DE-3344903-A1 (DE)
Title: Gripper arrangement for an industrial robot
Inventor: BERGER DIETER
IPC: B25J15/06
Filed: 1983-12-12
Abstract: Fastened to the robot arm (1) is a pivotable double arm (2) which is connected at the ends via quick-acting couplings (25) to special grippers (3, 4) for manipulating printed circuit boards and films. <IMAGE>
Patent DE-3401933-A1 (DE)
Title: Exterior rearview mirror system without blind angle for lorries
Inventor: GHEORGHIU CONSTANTIN PROF
IPC: B60R1/08
Filed: 1984-01-20
Abstract: The exterior rearview mirror system without blind angle for lorries is a combination of three mirrors which are fixed by means of a ball system on a metal plate which is welded in a triangular case. The triangular case is provided with a mobile connection which is secured to the mirror carrier. By means of the ball system, each mirror is adjustable - by manual pressure - according to the requirement of the lorry driver so that everything which is taking place behind, on the right-hand side and on the left-hand side of the lorry is always shown quite clearly.
Patent DE-3402001-A1 (DE)
Title: Belt pulley for driving a belt drive
Inventor: BANNASCH LUTZ-UWE DIPL ING
IPC: F16H55/36
Filed: 1984-01-21
Abstract: A belt pulley for a belt drive for the purpose of driving the auxiliary units or the camshaft of an internal combustion engine has a belt running ring which is mounted rotatably via a web and a rolling bearing and in an axially and radially fixed manner on the hub. The driving torque is transmitted to the belt running ring by the crankshaft separately from the mounting of the belt running ring, via a rubber disc which is held fast rotationally on the hub and on the belt running ring. This provides a belt pulley with good guidance of the belt running ring and vibration-free torque transmission from the crankshaft to the belt drive.
Patent DE-3403845-A1 (DE)
Title: Pallet truck with rolling members suitable for adaptation to the ground profile
Inventor: COMTE HENRI
IPC: B62B3/065
Filed: 1984-02-03
Abstract: The pallet truck according to the invention comprises a frame (1) and a conveying unit (4) which is movable relative to the frame (1) and has a conveying fork (5) and supporting rolling members (6) mounted on supports (8) linked to the fork. It is distinguished by the fact that the conveying unit (4) comprises a cross-bar (13), linked to the frame (1) via link rods (14), two planet gears (15), rotatably mounted on the cross-bar (13) about an axis (16) perpendicularly to its longitudinal axis, two sleeves (17), adapted to the cross-bar (13) and each carrying a pinion (18) meshing with the two planet gears (15), at least two shift levers (19), frictionally connected to the sleeves (17), and at least two tie rods (20), connecting the shift levers (19) to the supports (8) of the supporting rolling members (6). 
<??>The fork (5) remains parallel to the ground profile lying under the wheels of the frame (1), for the rolling members (6) can adapt themselves to the ground profile. 
<IMAGE>
Patent DE-3408042-A1 (DE)
Title: Liquid-crystalline mixtures for the guest-host effect
Inventor: DEMUS DIETRICH PROF DIPL CHEM
IPC: C09K19/42
Filed: 1984-03-05
Abstract: The invention relates to coloured liquid-crystalline nematic mixtures for opto-electronic components for the colour display of numbers, symbols and graphics. The object of the invention is to provide nematic liquid-crystalline mixtures for the guest-host effect having positive contrast with a pure red colouration and high stability. According to the invention, from 1 to 15 mol % of novel derivatives of tetrazine of the formula.
Patent DE-3408699-A1 (DE)
Inventor: SKUBALLA WERNER DR
IPC: C07C405/00
Filed: 1984-03-08
Abstract: Carbacyclin derivatives of Formula I    <IMAGE>  (I)  wherein R1 is OR2 wherein R2 is hydrogen, C1-C10-alkyl, C3-C10-cycloalkyl, C6-C10-aryl,   <IMAGE>   or a heterocyclic residue, or R1 is R3 wherein R3 is C1-C10-alkyl, C3-C10-cycloalkyl, C6-C10-aryl, C7-C14-aralkyl or a heterocyclic residue, A is -CH2-CH2-, trans-CH=CH- or -C 3BOND C-, W is a free or functionally modified hydroxymethylene group or a free or functionally modified   <IMAGE> wherein the OH-group can be in the  alpha - or  beta -position, D is <IMAGE>   a straight-chain, saturated alkylene group of 1-10 carbon atoms, or a branched, saturated or a straight-chain or branched, unsaturated alkylene group of 2-10 carbon atoms, each of which can optionally by substituted by fluorine atoms, n is the number 1, 2 or 3, E is -C 3BOND C- or -CR6=CR7- wherein R6 and R7 differ from each other and one is hydrogen and the other alkyl of 1-5 carbon atoms, or one is hydrogen and the other is halogen, or E can also be -CH2CH2- when R1 is R3, R4 is C1-10-alkyl, C3-C10-cycloalkyl, optionally substituted C6-C10-aryl or a heterocyclic group, R5 is a free or functionally modified hydroxy group and, when R2 is hydrogen, the salts thereof with physiologically compatible bases; are useful as medicinal agents.
Patent DE-3413869-A1 (DE)
Title: Process for the decaffeination of black tea
Inventor: FORSTER ADRIAN DIPL ING DR
IPC: A23F3/36
Filed: 1984-04-12
Abstract: The decaffeination of black tea is successfully carried out in a mild manner and with complete aroma content by the use of moist liquid carbon dioxide. The caffeine content is reduced by 97% in less than 4 h.
Patent DE-3419821-A1 (DE)
Title: Self-locking differential
Inventor: BEST CARL MARIA
IPC: F16H48/26
Filed: 1984-05-26
Abstract: A self-locking differential has a differential case (23) with differential bevel gears (26, 27) and axle bevel gears (24, 25) which are connected rotationally to axle shafts (18, 19). The axle shafts (18, 19) and the differential case (23) are connected to one another via a lock-up clutch comprising two hydrodynamic torque converters (10, 11) and a clutch (29, 30, 31) releasable as a function of the rotational speed. <IMAGE>
Patent DE-3420975-A1 (DE)
Title: Machine for profiling profile rolling wheels
Inventor: WULFF FREDERICO
IPC: B24B5/16
Filed: 1984-06-06
Abstract: The invention relates to a machine for profiling profile rolling wheels, with a drive provided on a carrier means and a holder for the profile rolling wheel to be machined, with a carriage, on which the holder for the profile rolling wheel is provided, which is borne by the carrier means so as to be movable up and down, a pivot support which is borne by the carrier means and is used to hold an electric turbine which drives a grinding point, a cam wheel which is displaced into a rotary movement by the drive and bears against the carriage at its outer periphery, and a timing lever which is actuated via a push rod by the up and down movement of the carriage and is connected to the holder of the profile rolling wheel via a gear connection. A grinding wheel support can be provided with a drive, borne by the latter, for a flank grinding wheel or a radius grinding wheel.
Patent DE-3421281-A1 (DE)
Title: Fork-carrier side part and method of producing it
Inventor: WOLFF DIETHARD ING GRAD
IPC: B66F9/12
Filed: 1984-06-07
Abstract: The side part of a fork carrier according to the invention consists of a single, unified workpiece 21 on whose tubular body parts with the surfaces 37, 38, 39 are provided, from which bearing-journal supporting bodies 23, 24 can be created by machining. <IMAGE>
Patent DE-3421492-A1 (DE)
Title: Control valve
Inventor: RUCHSER ERICH
IPC: F15B20/00
Filed: 1984-06-08
Abstract: The invention relates to a control valve which is electromagnetically servo-controlled and has two three-way valves which are connected in parallel, can be operated simultaneously and are located in one axis. The two three-way valves are provided with sealing means, by means of which the inlet flow connection of the control valve can be opened and closed. In the event of incorrect connection of the control valve, the complete valve including the servo controls is vented and hence made free of pressure. The control valve cannot be taken back into use until the defect which led to the incorrect connection has been rectified.
Patent DE-3423976-A1 (DE)
Title: Driving device, preferably for space, air, water or underwater craft
IPC: F03G3/00
Filed: 1984-06-29
Abstract: The invention relates to a driving device, preferably for space, air, water or underwater craft, having rotors which can be driven perpendicularly with respect to the axis of rotation, running in the direction of travel, and having flywheel masses, which are arranged diametrically oppositely on the said rotors, can be displaced back and forth in the direction of the axis of rotation and during each rotational revolution are guided eccentrically with respect to the axis of rotation by means of a guiding device. In the case of a known driving device (US Patent 3968700), a rigid cam guide track, mounted eccentrically with respect to the axis of rotation, serves as the guiding device for the diametrically back and forth displacing movement of the flywheel masses. Such a known device has the disadvantage that, due to the rigid guide track, considerable friction losses occur, by which the drive energy gained is partially destroyed. The object on which the invention is based is to provide such a driving device with which these disadvantages can be avoided. The object is achieved by the guiding device comprising controllable pressure-fluid cylinders which are arranged on the rotors (2, 2'), are connected to each of the flywheel masses (3, 3') and during each revolution displace the latter back and forth in the radial direction with respect to the axis of rotation (1). According to the invention, the advantage is obtained that the travelling direction ... both in the horizontal direction and in the vertical direction in a convenient and simple way ... Original abstract incomplete. <IMAGE>
Patent DE-3434226-A1 (DE)
Title: Method for the chipless working, in particular forming, of rod-shaped stock, such as shafts, wire or the like and a unit for carrying out the method
Inventor: LINDEMANN HANS
IPC: B21B1/16
Filed: 1984-09-18
Abstract: A description is given of a method for the chipless working, in particular forming, of rod-shaped stock, such as shafts, wire or the like, in particular for the production of feedstock for conical springs, and of a unit for carrying out the method, in which the stock to be worked is fed axially through an all-round frame of a unit, which frame has at least two rollers which are supported in it in such a way as to be rotatable about an axis essentially parallel to the feed direction of the stock and which are moved continuously in a radial direction towards and away from the stock feed axis along an axis perpendicular to the said stock axis, thereby working the stock. By means of this method it is possible both to form rod-shaped stock with a constant diameter - either still hot or heated up before working - by continuous radial adjustment of the rollers to give rod-shaped stock with a diameter which varies continuously along its longitudinal axis, and to harden and polish the surface of rod-shaped cold stock with a diameter which varies continuously along its longitudinal axis by means of the continuous movement of the rollers towards and away from this axis in a manner corresponding to the respective stock diameter. <IMAGE>
Patent DE-3444264-A1 (DE)
Title: Packaging material and process for producing it
Inventor: HUBER FRIEDO
IPC: C08J9/32
Filed: 1984-12-05
Abstract: The invention relates to a foamed, dimensionally stable packaging material of low density, for creating a product in which only a small proportion of the starting materials used are based on crude oil, this packaging material being resistant to many solutions, solvents, in particular to water, alcohol, benzene, chloroform, ethyl acetate and acetone, it being highly absorbent so that even the abovementioned solutions and solvents can, where possible, be absorbed, and the packaging material furthermore being dimensionally stable, capable of absorbing pressure, tear-resistant and stretchale, it being proposed according to the invention to use cellulose-containing material (pulp, waste paper, waste cardboard, wood shavings) as the main constituent which is suspended by stirring in water to give a suspension, this solids suspension being mixed for a sufficiently long time with microbeads filled with a propellant gas, the water content of the suspension then being largely removed and the remaining mixture being heated and thus being expanded.
Patent DE-3501032-A1 (DE)
Title: Method for reducing the risk of collision in motor vehicles
Inventor: OSTERMANN BERND DIPL ING
IPC: G08G1/16
Filed: 1985-01-15
Abstract: The invention indicates a method for reducing the risk of collision in motor vehicles. This takes place by means of a, if appropriate fully automatic, optimisation of the driving behaviour. <IMAGE>
Patent DE-3510627-A1 (DE)
Title: Castor for apparatuses, furniture or the like
Inventor: LUETTGEN HANS GUENTER
IPC: B60B33/00
Filed: 1985-03-23
Abstract: The castor comprises a housing, in which a wheel is accommodated on its axle, the housing being pivotably connected to a fastening peg which is arranged perpendicularly with respect to the wheel axle at a trailing distance therefrom. In order to facilitate fitting and repair, the wheel with its axle is arranged in a bearing cage which, for its part, can be inserted into the housing.
Patent DE-3512327-A1 (DE)
Title: Circuit arrangement for powering an electronic dialling device in telephone subscriber stations
Inventor: BAHR FRANK
IPC: H04M1/31
Filed: 1985-04-03
Abstract: The circuit arrangement for powering an electronic dialling device in telephone subscriber stations in conjunction with a conventional speech circuit is simplified in that the feed voltage is tapped in parallel with the microphone capsule via a decoupling resistor and, in the dialling condition, a storage capacitor is connected in parallel with the speech circuit which supplies the power for redialling and controls the dial tone muting and the reduction in audibility of the pulse transmission in the telephone receiver.
Patent DE-3512566-A1 (DE)
Title: Christmas tree stand
Inventor: AUGUSTIN EBERHARD
IPC: A47G33/12
Filed: 1985-04-06
Abstract: The invention relates to a Christmas tree stand which dispenses with the socket on a base plate, which was hitherto generally customary, and instead uses abutment pieces, which can be pivoted about horizontal axes opposite a single screw spindle and are in each case arranged in symmetrical alignment on either side of a vertical central plane through the screw spindle. The fir-tree, which is inserted into the Christmas tree stand according to the invention, is supported with the lower end on the base plate 1 and is then fixed in the initially arbitrarily selectable position by turning the screw spindle in until the pivotable abutment pieces come to bear firmly and assume a position which corresponds to an arbitrarily selected alignment of the lower part of the fir-tree trunk. <IMAGE>
Patent DE-3512872-A1 (DE)
Title: Expanding rivet consisting of plastic or rubber
Inventor: KRONEMEYER DETLEF
IPC: F16B19/10
Filed: 1985-04-11
Abstract: The virtually exclusive use of screws, stud rivets and weldings when mounting structural parts, combined with the specific deficiencies and disadvantages, frequently does not satisfy the requirements which the expanding rivet can satisfy in many cases. Due to its design of head, shank and foot, due to the conical foot, the longitudinal incisions and the hollow bore in the shaft, rapid use is achieved, this contributing greatly to the reduction in mounting times. Excellent resistance to weathering is achieved as a result of the material quality. The expanding rivet, comprising the bolt and the rubber ring or the rubber sleeve, can be used for mounting parts which are subjected to vibration and require either elasticity in the axial direction of the expanding rivet and/or lateral elasticity. Securing can be achieved by driving a pin into the hollow bore. The design and the material stresses permit rapid demounting and re-use.
Patent DE-3513426-A1 (DE)
Title: Transmission for small tractors
Inventor: ALBRECHT ZBYNEK DIPL ING
IPC: B60K17/16
Filed: 1985-04-15
Abstract: The invention relates to a transmission for small tractors with a brake arranged on the countershaft (5) and with a differential gear with a locking mechanism on the driven axle (35). The countershaft (5) is connected to a gear (7) and to a spur pinion (6) and supported in a brake cover (4) and in the step bearing (3) in a side wall of the transmission housing. The brake cover (4) is fixed by its flange in the opposite wall (18) of the transmission housing (1). The differential gear (25) is supported by its transmission housing (26) and a spur gear (27) connected to it on the one hand in a housing inner bearing (29) in the opposite wall (18) and on the other on a cover inner bearing (31) in the cover (23) of the locking mechanism. This cover (23) is fixed in the side wall (17) of the transmission housing (1) by means of a centring shoulder (22). <IMAGE>
Patent DE-3515402-A1 (DE)
Title: Process for the stabilisation of concentrated liquid resinous tanning agent solutions
Inventor: PIEPER FRIEDRICH
IPC: C14C3/20
Filed: 1985-04-29
Abstract: Solutions of resinous tanning agents, which have been obtained by condensation of nitrogen-containing organic compounds, aromatic sulphonic acids and aldehydes, can be stabilised by adding certain amide compounds after condensation is complete.
Patent DE-3524581-A1 (DE)
Title: Method and circuit for the fast determination of electrical quantities of alternating-current systems
Inventor: HANDSCHIN EDMUND PROF DR ING
IPC: G01R21/00
Filed: 1985-07-10
Abstract: The method is particularly intended for determining the active, apparent and reactive power and the rms values of current and voltage, preferably in single-phase alternating-current systems, from measured original alternating-current and voltage signals, the electrical quantities only being determined from two pairs of measurement values per phase, the determination of which is effected by preferably simultaneous integration of the variation of current and voltage in a predetermined time interval. The circuit for carrying out the method exhibits for each original input signal an analog/digital converter with an active connection to the input of one integrator each and for both input signals jointly one processing unit, the inputs of which exhibit an active connection to the outputs of the integrators.