baber/WOPTO huggingface dataset:
Patent DE-3102256-A1 (DE)
Title: Circuit arrangement for suppressing interference signals
Inventor: GLEIM GUENTER
IPC: H03K5/1252
Filed: 1981-01-24
Abstract: Circuit arrangement for suppressing interference signals, in particular in the transmission of digital signals of changing amplitude and a time-constant component. A voltage-limiting component is connected in parallel with the time-constant component. A further time-constant component is connected in series which is dimensioned in such a way that its time constant is greater than that of the first time-constant component.
Patent DE-3103767-A1 (DE)
Title: Magnetic head
Inventor: YASUDA ISAO
IPC: G11B5/127
Filed: 1981-02-04
Abstract: In the case of a magnetic head with an inner core of metallic, magnetisable material, which is laminated between a pair of outer reinforcing cores each having an insert opening for the reel winding, the inner core comprises a first core block with a surface forming a front gap and a surface forming a rear gap, respectively on one and the other side of the first core block, and with a reel winding cutout in the vicinity of the surface forming the front gap, there being provided between the surface forming the front gap and the reel winding cutout an intermediate space or a groove for limiting the lower end of the surface forming the front gap and there being provided a layer of soldering material for connecting the intermediate space or the groove to the reel winding cutout; and a second core block, to be connected to the first core block, to form the inner core.
Patent DE-3109543-A1 (DE)
Title: Device for feeding coolant to rotating cutting tools, provided with coolant passages, for metalworking, in particular drilling tools
Inventor: ECKLE OTTO
IPC: B23Q1/00
Filed: 1981-03-13
Abstract: A device for feeding coolant to rotating cutting tools, provided with coolant passages, for metalworking, in particular drilling tools, has a coolant feed ring (6) which is rotatably arranged on the cylindrical tool shank (3), is sealed off from the tool shank, can be connected on the outside via a releasable coupling (7, 7', 17, 17') to a stationary feed line (20) and is connected on the inside via an annular passage (27) to coolant bores (4) of the tool shank (3). The tool shank (3) can be inserted into a drive spindle (14) mounted in a housing (13). A coupling head (17, 17') arranged in the area of the coolant feed ring (6) and constantly attached to the feed line is connected to the housing (13). The coupling head (17, 17') has an outlet bore (21) which runs essentially radially to the shank axis and opens out in a first sealing face (22, 22'). The coolant feed ring (6) has a second sealing face (10) interacting with the first sealing face (22, 22'). An essentially radially running inlet bore (11) connected to the annular passage (27) opens out in the second sealing face (10). The coolant feed ring (6) has a radially projecting coupling piece (7, 7') having the second sealing face. Both sealing faces (10, 22, 22') are of planar design. The first sealing face (22, 22') is inclined in the peripheral direction of the coolant feed ring (6) relative to a tangent (T) running through the outlet bore (21) at a circle (K) concentric to the shank axis (a-a) at an acute angle ( alpha ) of 2 to 10 DEG in such a way that its distance (r) from the shank axis (a-a) is reduced in the direction of rotation (D) of the tool (1) and runs inclined at an acute angle (ss) up to 10 DEG  in the direction of the shank axis (a-a) parallel to the latter or towards the free end of the tool (1) away from the shank axis (a-a). The second sealing face (10) is adapted in its inclination to the inclination of the first sealing face (22, 22'). <IMAGE>
Patent DE-3113684-A1 (DE)
Title: Incandescent lamp
IPC: F21V19/00
Filed: 1981-04-04
Abstract: The invention relates to an incandescent lamp having a light body which is arranged in an at least partially translucent housing, preferably in a bulb consisting of glass or quartz. In order that such an incandescent lamp (which is preferably constructed as a halogen incandescent lamp) can be arranged and aligned exactly in a simple manner and at a low production cost in a luminaire, it is proposed that the housing of the incandescent lamp be arranged with its end part in a retaining body. This retaining body is preferably produced from a synthetic material and contains an axial stop surface which is at a predetermined distance in the direction of the longitudinal axis to the centre of the light source of the light body. <IMAGE>
Patent DE-3116770-A1 (DE)
Title: Device which can change in length telescopically
Inventor: SUTTNER KLAUS
IPC: H01Q1/12
Filed: 1981-04-28
Abstract: Device which can change in length telescopically and has telescoping elements which can be adjusted relative to one another and are guided one against the other. Stops are provided in order to delimit the relative movement of the telescoping elements and as drivers. The invention further provides locking members which are used for positive locking and unlocking of the telescoping elements in a predetermined sequence and in dependence on the relative adjustment thereof. <IMAGE>
Patent DE-3117124-A1 (DE)
Title: Method and appliance for dedusting the precipitation electrode plates in a dry electrostatic dust filter
Inventor: PETERSEIM HEINZ ING GRAD
IPC: B03C3/76
Filed: 1981-04-30
Abstract: Such a method for dedusting the precipitation electrode plates is implemented by generating vibrations in the precipitation electrode plates in a mechanical way, i.e. by tapping. In this context, a distinction is made in turn between longitudinal tapping and transverse tapping of the precipitation electrode plates. In the case of longitudinal tapping, the precipitation electrode plates (2) are guided in tapping rods. They can move in their own longitudinal direction, however, so that they can expand under the temperature influence of the hot gas to be dust-freed. The tapping rod transmits the impact to the plate which is thereby excited into a vibration, so that the dust drops off it. In the case of transverse tapping, the plate is made to vibrate in the transverse direction. It has been found to be a drawback that the precipitation electrode plates (2) tend to buckle when exposed to non-uniform temperatures, as a result of which free expansion in the longitudinal direction of the plates is no longer possible. The generation of vibrations by means of tapping appliances on the basis of longitudinal tapping or transverse tapping therefore does not result in satisfactory vibrations which cause all of the dust to drop off. A method for dedusting the precipitation electrode plates (2) is provided, in which the pendulous precipitation electrode plates (2) have gas jets (12) directed against them in the form of pulses up to an intensity causing striking against a pendulum limit stop (4). The dedusting appliance for implementing the method is arranged in such a way that the rows (1) of precipitation electrode plates (2) are each suspended between the pendulum limit stops (4), which maintain a gap (7, 8) of from 2 to 20 mm, and that nozzles (10) for generating the gas jets are provided. <IMAGE>
Patent DE-3119259-A1 (DE)
Title: Electronic control for woodworking machines
Inventor: FREY KARL DIPL ING
IPC: G05B19/05
Filed: 1981-05-14
Abstract: For the purpose of simplified construction and improved operation of the woodworking machine and preparation for fully-electronic control, the electronic control for a woodworking line exhibiting at least one woodworking machine (1) for trimming, edge-banding, lopping, milling, grinding and the like of furniture elements exhibits for each machine (1) a freely programmable electronic control (2) with a program memory, an auxiliary memory, a non-volatile auxiliary memory and a 1-bit microprocessor for carrying out logic operations and with 24-V and 5-V level inputs and 220-V and 24-V level outputs. When configured as fully-electronic control, each freely programmable control (2) is connected to a microprocessor (3) for resetting the units of the machine, a microprocessor (4) for controlling the supply of edge materials and a microprocessor (5) for simulating a shift register for contactless length control, and microprocessors (3, 4, 5) are connected to an input unit (7) via a current loop interface (6). <IMAGE>
Patent DE-3125419-A1 (DE)
Title: Aircraft tyre
IPC: B64C25/40
Filed: 1981-06-27
Abstract: An aircraft tyre is described which automatically starts to rotate during the landing approach after being lowered, in order that the relative speed, and hence the tyre wear, are reduced after touchdown on the runway. This is achieved by means of one or more external projections which offer a different drag of sufficient magnitude in opposingly directed tangential airflows. The projections can be constructed integrally with the tyre body or may be special parts which are connected to the tyre body.
Patent DE-3128687-A1 (DE)
Title: Process for cleaning a blocked siphon and device for carrying out the process
Inventor: DORNHEGE BERNHARD
IPC: E03C1/306
Filed: 1981-07-21
Abstract: The invention relates to a process for cleaning a blocked siphon and a device for carrying out the process. In this arrangement, a dimensionally flexible and pliant bell is positioned over the siphon mouth and a sealing hose connection is produced between the upper part of the bell and the mouth of a water-supply line. By virtue of manual, pumping pressure on the surface of the bell, a vacuum is produced in the interior of the hose/bell/air part system of the siphon and the valve of the water-supply line is then opened. Owing to the sudden change between vacuum and water pressure, the blockage is released and driven out.
Patent DE-3129410-A1 (DE)
Title: Expansion valve arrangement in heat pumps
Inventor: POEHLMANN ERICH ING GRAD
IPC: F25B30/04
Filed: 1981-07-25
Abstract: Published without abstract.
Patent DE-3129904-A1 (DE)
Title: Gearbox with a plurality of transmission stages
Inventor: WEICHERT CLAUS ING GRAD
IPC: F16H37/04
Filed: 1981-07-24
Abstract: The invention relates to a gearbox with a preliminary-stage gearset driven by the driving motor and a plurality of transmission stages, the sun wheels of which are arranged coaxially one behind the other, and with two coaxially arranged output shafts, namely a solid shaft and a hollow shaft surrounding the latter. In order to provide a gearbox, one output shaft of which has, relative to a second output shaft surrounding the first shaft, a considerably higher speed after a change in the direction of rotation of the drive than before the change in the direction of rotation, e.g. twice the speed, it is proposed to design the preliminary-stage gearset as a planetary gearset, to arrange a further, coaxial output shaft on the output side of the first-mentioned output shaft, the transmission shaft being arranged in a particular way relative to this further output shaft, and to have different transmission ratios for the individual transmission stages. Details of this configuration emerge from the features of Claim 1. <IMAGE>
Patent DE-3130858-A1 (DE)
Title: Covering for a tennis court
Inventor: MUELLER UWE
IPC: A63C19/12
Filed: 1981-08-04
Abstract: In this tennis court, tarpaulins (40) are arranged next to the side lines (10 and 12) of the playing area. These tarpaulins are mounted there on attachment supports (30 and 32). In order to be able to cover the playing area, attachment supports (34 and 36) are provided in the longitudinal mid-axis (20) of the court, said supports being linked in a case (48) arranged countersunk in the ground. The supports (34 and 36) can be pivoted up into the vertical position from their horizontal position which is flush with the ground. The covering tarpaulins (40) can be pulled up on wire ropes (44) attached to the supports (34 and 36). It is likewise possible to wind the tarpaulins up on spring shafts or other shafts. The covering can be spread over the court, for example by two players, in a very short time at the onset of rain. When the rain stops, it can be stowed away again on the side lines just as quickly. <IMAGE>
Patent DE-3134690-A1 (DE)
Title: Solar energy reflector plate and method for producing it
Inventor: EGGERT JUN
IPC: F24S23/74
Filed: 1981-09-02
Abstract: In order to be able to mass produce solar energy reflector plates (10), use is made of a support (14) on which a solar energy reflector or mirror (12) is mounted. A flexible binding agent (binder) or a cellular (foam, expanded) plastic is arranged between the support (14) and the reflector (12). <IMAGE>
Patent DE-3139152-A1 (DE)
Title: Device for manipulating tools for a machine tool, in particular a milling machine, equipped with a tool magazine
Inventor: PECCHIOLI BRUNO
IPC: B23Q3/157
Filed: 1981-10-01
Abstract: Device for manipulating tools (U) for a machine tool when inserting and removing the tool into and respectively from the tool spindle (10), which tools (U) each have a disc (18) with recesses (20). The device comprises a mechanical manipulator with at least one cradle-shaped seat (64, 66) which accommodates and at least partly surrounds the circular edge area of the disc (18). Provided on the manipulator are elastically catching holding teeth (72, 88) which hold the tool (U) by engaging in the said recesses (20). Provided in the seats (32, 34) of the tool magazine (24) are further elastic holding teeth (44) which interact with the holding teeth (72, 88) of the manipulator in such a way that the teeth (88) of the manipulator unlock the teeth (44) of the tool magazine (24) upon removal of a tool from the tool magazine, and conversely the teeth (44) of the tool magazine (24) unlock the teeth (72) of the manipulator during the transfer of a tool to the tool magazine (24). <IMAGE>
Patent DE-3141579-A1 (DE)
Title: Cooking hob
Inventor: DETTERBECK HEINRICH
IPC: F24C15/10
Filed: 1981-10-20
Abstract: In cooking hobs, it is known to make the display elements, which are assigned to the operating members for the individual cooking points, visible upwardly through the cooking hob surface, so that a direct perceptible connection exists between the individual cooking points and these display elements. In this connection, it was disadvantageous that these display elements were constructionally combined with the operating members or the corresponding control devices. According to the invention, separation between the display elements assigned directly to the cooking hob and the operating members for the cooking hob, which are e.g. situated on a cooker, is possible in any manner, the display elements being connected via flexible connection lines to the operating members. <IMAGE>
Patent DE-3145134-A1 (DE)
Title: Axial displacement and holding device for intermediate rolls of a multi-roll stand
Inventor: BERNING FRANZ
IPC: B21B31/20
Filed: 1981-11-13
Abstract: In an axial displacement and holding device for intermediate rolls (5, 6) of a multi-roll stand, the said intermediate rolls being mounted displaceably in chocks (11, 12) guided in roll housings, a pressure-medium cylinder is operatively connected to the intermediate roll (5 and 6 respectively) via thrust bearings (21, 22). To provide an economical axial displacement and holding device which allows very large axial forces to be exerted on the intermediate rolls (5, 6) and can be released rapidly from the journals (37) of the intermediate roll for the purpose of changing the rolls, a connecting rod (27) connected via an annular clamping means to the journal (37) of the intermediate roll is accommodated rotatably at the other end in a thrust bearing block (18) guided with horizontal displaceability on a housing bracket (13). <IMAGE>
Patent DE-3151087-A1 (DE)
Title: Motor vehicle with automatic clutch
Inventor: ROTTER GERHARD
IPC: F16D48/08
Filed: 1981-12-23
Abstract: In a motor vehicle with a device for the automatic operation of a clutch provided in the transmission line between a drive motor and a gearbox, which clutch is opened as a function of certain operating states of the motor vehicle, such as, for example, overrun operation, in order to interrupt the flow of power between engine and gearbox, a device is provided which, when the brake is operated, restores the flow of power between engine and gearbox by closing the clutch. The operating reliability of the motor vehicle is increased by a device of this type.
Patent DE-3203742-A1 (DE)
Title: Refrigerated cabinet
Inventor: LEUPRECHT KARL
IPC: A47F3/04
Filed: 1982-02-04
Abstract: In order to combine the advantages of so-called still cooling (laminar flow of air due to temperature differences) with those of dynamic cooling (air circulation produced by fan) whilst avoiding their disadvantages in a refrigerated cabinet, the invention proposes introducing an acceleration flow (16) in a circuit (15), which allows the still cooling, with a throughflow duct (8), extending below a circulation base (6), and a cooling chamber (9) which is connected upstream on the operating side (3) and accommodates the evaporator (10), with the aid of an air distribution pipe (14) which penetrates the throughflow duct (8) and/or is arranged at the end of the throughflow duct (8). <IMAGE>
Patent DE-3206855-A1 (DE)
Title: Method for working the edge of ceramic vessels and apparatus for carrying out the method
Inventor: KIEFFER RUDOLF
IPC: B28B11/12
Filed: 1982-02-26
Abstract: A method for working the edge of dish-shaped ceramic vessels in the unfired, leathery state is undertaken by means of a wire clamped in a tension bracket, which wire is on the one hand rotated relatively to the vessel and on the other hand is displaced relatively thereto in the axial direction. The rotary movement is appropriately coupled with the reciprocal movement. An apparatus for carrying out this method achieves the coupling of the two movements by means of a cam disc which is scanned at its end face.
Patent DE-3217594-A1 (DE)
Title: Apparatus for spaces in which parts liable to corrode are stored
Inventor: SCHMIDT PETER DIPL ING
IPC: F24F1/02
Filed: 1982-05-11
Abstract: The invention relates to an apparatus for spaces in which materials liable to corrode are stored. The invention serves for air dehumidifying and supplementary heating in the case of circulating air operation, and consists of a channel adapted to the height of the space, with an air inlet at the top end and an air outlet at the bottom end, and an evaporator, a condenser, and control elements arranged in the channel, and possibly also a refrigerator, so that the damp air which predominantly collects in the upper part of the storage space is sucked out and can be fed back to the space at the bottom as dried air.
Patent DE-3218310-A1 (DE)
Title: Internal combustion piston engine
Inventor: SCHINDLER MANFRED
IPC: F02B23/00
Filed: 1982-05-14
Abstract: Internal combustion engine, especially a two-stroke internal combustion engine, the central combustion chambers (10) of which are of semi-spherical or spherical cup shaped design and the annular guide surfaces (8) of which are provided with swirl generating means in the form of tangentially directed guide slots (11). <IMAGE>
Patent DE-3222562-A1 (DE)
Title: Packaging machine for a can
IPC: B65B53/06
Filed: 1982-06-16
Abstract: A packaging machine for a can has a banding device (16) and a shrinking device (28) and a transfer device (18) in the form of a pivotable frame (20). The pivotable frame (20) has two clamping arm arrangements (24, 26), which are equidistant from the axle (22) of said frame and diametrically opposed. Each clamping arm arrangement has a receiving point, in which the can (34) is gripped at its front side, a banding point (34''), which is lower by half a can diameter with respect to said receiving point, and a shrinking point (34'''), which is swivelled through 180 DEG  with respect to said banding point. Whilst a can is banded at point (34''), a further can is shrunk at point (34'''). The can is held at its front side before the banding operation, during the banding operation, during the transfer into the shrinking zone and during the shrinking operation. <IMAGE>
Patent DE-3222598-A1 (DE)
Title: Removal and feed unit and a method for loading and unloading installations, preferably for the sheet metal-working industry
Inventor: LAMPE DIETER
IPC: B21D43/10
Filed: 1982-06-16
Abstract: The application describes a removal and feed unit and a method for loading and unloading installations, preferably for the sheet metal-working industry. Pneumatic driving elements are provided for the transfer and feed movements in the horizontal region and pneumatic or hydraulic driving elements are provided for the lifting movements, depending on the weight of the material to be transferred. The essential point is that periodic and/or intermittent transfer movements are carried out by three-dimensionally superimposed linear movements between the end points of the transfer path even in the case of a transverse and/or vertical offset. The end points of the transfer path can be loaded without the insertion of an intermediate deposition point. <IMAGE>
Patent DE-3224091-A1 (DE)
Title: Electrical switch
Inventor: DONNER HARALD
IPC: B60Q1/34
Filed: 1982-06-29
Abstract: An electrical switch having a switch lever which can pivot in two mutually perpendicular directions, supports a latching bolt on the end which interacts with latching profile curves, and interacts with a switch slide and with a switch rocker which supports a contact link. The technical problem of the invention is to couple the switch movements of a switch lever in two mutually perpendicular directions to a switch rocker and to a switch slide. The switch slide has a slot, aligned in a pivoting direction of the switch lever, in which the switch lever engages. The switch rocker is supported such that it can tilt and has a pressure surface aligned at right angles to the longitudinal axis of the said slot, for a shoulder of the switch lever, and has a profile curve which is used for the other movement direction of the switch lever. <IMAGE>
Patent DE-3225271-A1 (DE)
Title: Process for the delignifying bleaching of semicellulose
Inventor: SAMUELSON HANS OLOF PROF
IPC: D21C9/147
Filed: 1982-07-06
Abstract: When No and/or NO2 plus gaseous oxygen were used in an introductory activation step in the treatment of semicellulose, followed by a delignification step, it was found that relatively large amounts of nitrogen oxides and starting material are used in the process for forming these oxides. This problem is overcome by the present invention, which relates to a process for the delignifying bleaching of semicellulose using the abovementioned chemicals in an activation step at a relatively high pulp consistency, a subsequent washing step and at least one delignification step in an alkaline medium in the presence or absence of gaseous oxygen and/or peroxide, where nitric acid is added to the semicellulose in the activation step in an amount of from 0.1 to 1.0, expediently 0.15 to 0.80, and preferably 0.25 to 0.60, gmol per kg of water in the semicellulose, and where the temperature during the activation step is 40 to 120, expediently 50 to 100, and preferably 55 to 90,  DEG C, and the activation time is 15 to 180 minutes at an activation temperature of from 40 to 50 DEG C, 5 to 120 minutes at 50 to 90 DEG C, and 1 to 10 minutes at higher temperatures.