baber/WOPTO huggingface dataset:
Patent DE-2638281-A1 (DE)
Title: Wideband amplifier to correct stray output capacity effect - operates by use of feedback signal to inverted input of amplifier using compensating capacitor as coupling element
Inventor: HORBASCHEK HEINZ ING GRAD
IPC: H03F1/48
Filed: 1976-08-25
Abstract: The wide band amplifier has a high output resistance and is connected in series with the output terminal (A1). Between this terminal or a tapping on the resistance (R5) and a second output terminal of the amplifier unit (TS1) at which an inverted signal appears (1) a compensating capacitor (C2) is connected. The circuit provides a max. degree of linearity of gain with frequency, and is suitable for test work, e.g. in testing t.v cameras, requiring an output signal varying linearly with input over a very wide frequency range, taken across a high output resistance with frequency characteristics adversely affected by stray capacities.
Patent DE-2639237-A1 (DE)
Title: Three-core high current cable - has field limiting electrode made by folding back split outer metal sheath
Inventor: TUSCHY PETER
IPC: H02G15/068
Filed: 1976-08-27
Abstract: The three-core high current cable (up to 10kV) has the end of its metal outer sheath (2) folded back on itself to form a field-limiting electrode (8) for a fitting attached to the end of the cable. The sheath is cut into strips axially parallel at its end to facilities folding back. The folded-back sheath is wrapped around a wire (7). The exposed insulation (5) beneath the metal sheath, and the field-limiting electrode are enclosed in the same insulating tape (9). The voltage breakdown strength is increased in the region of the cable's fitting.
Patent DE-2641126-A1 (DE)
Title: Grill unit with several rotary spits - has central heating cylinder with spits displaceable on vertical axes by gear drive
Inventor: SCHIESSL MATTHIAS
IPC: A47J37/04
Filed: 1976-09-13
Abstract: The spit grill unit is provided with several upright rotating spits fitted with drip trays for the meat juices and are rotated individually by a rotary drive in front of a heating cylinder which contains electric or gas heating elements. As these spits rotate individually they are also displaced along the heating cylinder. The number of spits on the apparatus is high in relation to the size of the unit. The spits can be mounted in holders which are rotatably attached to a horizontally rotatable spur gear of the rotary valve. The spits themselves are driven by a second spur gear.
Patent DE-2641771-A1 (DE)
Title: Time difference measuring device - compares measured time difference and reference value for ultrasonic velocimeter
Inventor: SATO TOMOMI DIPL ING
IPC: G04F10/10
Filed: 1976-09-14
Abstract: The time difference measuring device is used as part of a measuring system, e.g. an ultrasonic velocimeter, to determine the time lapse between a measured signal and a reference signal. The difference measuring circuit, provides an output signal representing the time lapse between the measured and reference signals, and is coupled to a comparator comparing the measured time lapse with a fixed reference value. A control is coupled to the comparator for controlling the reference signal, so that the corresponding measured time lapse is equal to the reference value.
Patent DE-2648526-A1 (DE)
Title: Hydraulic twin cell elastic walled engine mounting - has small holes in inter cell plate fixed to engine and chassis via main cell
Inventor: BRENNER HEINZ ING GRAD
IPC: F16F13/24
Filed: 1976-10-27
Abstract: The elactic-walled hydraulic mounting for automobile engines is designed to absorb low frequency high amplitude engine vibration whilst transmitting high frequency low amplitude support vibration. It has primary (19) and secondary (20) cells contg. hydraulic fluid. Part (1, 8) of the cell walls may be of rubber and a bleeding orifice (31, 32) communicates between the cells. The mounting comprises a hollow unit which is traversed axially by a vertical bolt (21) and subdivided by a horizontal metal diaphragm plate (17). The top (24) of the bolt attaches (25) to an engine bracket (26), and external flanges (27) at diaphragm (17) level attach (26) to the chassis (29). Metal cones (7, 14) with rubber rings (1, 8) form the top and bottom of the unit resp. and inclined plates (3, 4, 10, 11) from the diaphragm (17) form the side walls.
Patent DE-2655988-A1 (DE)
Title: Lorry cover securing device - has clips mounted on common slider for remote clamping in one operation
Inventor: MITTENZWEI MICHAEL
IPC: B60J7/10
Filed: 1976-12-10
Abstract: The flexible cover for the lorry has a series of oval fitting holes along the vertical edges, to hook over securing hooks (3) on the upright support frames. The hooks are mounted on a common slider bar which is tensioned in the upwards direction by a flexible band near the top. The cover is secured in one simple movement, after the bottom edge is secured. Two adjacent covers are secured on the same set of hooks. The driver does not have to perform tedious lacing or fitting of buckles, nor does he have to climb up a ladder to reach the upper hooks.
Patent DE-2659325-A1 (DE)
Title: Spanner adaptor for hard to reach screws - has square section socket in ratchet housing periphery for handle
Inventor: ENGE RAINER
IPC: B25B13/46
Filed: 1976-12-29
Abstract: The spanner adaptor comprises a ratchet housing with a square-section socket in the peripheral surface, to accommodate a handle equipped with a square drive head attached to a universal joint. The axis of the universal joint is parallel to that of the screw to be unscrewed or driven home. Alternatively there can be a boss fixed to the peripheral housing surface, coupled by universal joint to a handle. An angle-piece can be used, with square socket and head, or a worm drive, the head being on the wheel spindle and the socket in the worm spindle. The adaptor aids access to screws partly masked by other components.
Patent DE-2659722-A1 (DE)
Title: Textile fabric wall covering - has panels held on frame with sides formed of channel section members which receive clamping profiles
Inventor: EPPERLEIN HELMUT DIPL ING
IPC: E04B9/04
Filed: 1976-12-31
Abstract: The textile fabric covered frame panel is used for wall and ceiling lining. Triangular, square hexagonal or other polygonal panels are made to match a layout pattern. The frame is made of profiles (1) and corner profiles by inserted connection. The textile cover encloses the frame, and it is closed by clamping profiles. A profile forming the side of the frame has a channel section with the channel section with the channel sides folded over to grip the clamping profile and corner connector. The fabric is held by the clamping profile.
Patent DE-2710856-A1 (DE)
Title: Shipboard equipment for manipulating objects over stern - consists of carriage running on overhanging overhead rail to support roller fairlead
Inventor: HARMS HORST DIPL ING
IPC: B63B27/16
Filed: 1977-03-12
Abstract: The shipboard equipment for manipulating objects over the stern comprises a roller fairlead for a winch operated suspension line. The fairlead is flexibly suspended from a carriage running on a horizontal rail extending out over the stern, and supported over the centreline by two gantries. Carriage position is controlled by a tackle running, via rollers at each end of the rail, to a second winch. Control links between the winches provide for automatic level maintenance of objects being moved fore and aft.
Patent DE-2720265-A1 (DE)
Inventor: ALDEN JOHN TOOD
IPC: B60C17/00
Filed: 1977-05-03
Abstract: A pneumatic tire which can be operated in a deflated condition without damage to the tire, wherein the tire has a cord ply, a tread, a ply with wire cords in the crown, and thick sidewalls wherein the cord ply extends from the heel of the bead to a location closely adjacent to the outer surface of the midpoint of the sidewall and thence towards the inner surface of the crown.  The interior portion of the sidewall rubber has a high dynamic modulus with low hysteresis properties and high aging properties.
Patent DE-2721956-A1 (DE)
Title: Internal combustion engine exhaust system and silencer - uses tubes with multiple bores to cool exhaust gas
Inventor: LEISTRITZ HANS KARL DR
IPC: F01N13/16
Filed: 1977-05-14
Abstract: A silencer forming part of the exhaust system of an internal combustion engine consists of two concentric tubes (51, 52). These tubes are joined by radial walls (55) which extend longitudinally so that the annular space between the tubes is divided into a number of separate compartments (5). A cooling fluid flows in these compartments (5) in the opposite direction to the flow of gas in the central bore (50). The outer wall of the outer tube (52) has a number of radial fins (56) which also extend longitudinally. These fins help to dissipate the heat which has been transferred to the cooling medium by convection and radiation.
Patent DE-2733726-A1 (DE)
Title: Power saw chain assembly - has adjacent side links running on guide plate with cutting and laterally aligned side links forming vibration reducing gap (SW 19.12.77)
Inventor: ENGMAN THOMAS
IPC: B27B33/14
Filed: 1977-07-26
Abstract: The power saw chain comprises a central row of driving links and outer rows of cutting links and side links. Each cutting link is laterally aligned with a side link and adjacent a side link longitudinally of the chain. The undersurfaces of the adjacent side links are designed to run on a guide plate surface. The undersurfaces of the cutting links and the laterally aligned side links have clearance from the surface to reduce the vibration effect of the chain.
Patent DE-2740948-A1 (DE)
Title: Torsion rear axle for car - has trailing arms welded to axle on stress-relieved welds
Inventor: GROTEWOHL ALBERT DR ING
IPC: B60G21/05
Filed: 1977-09-10
Abstract: The rear suspension has torsion cross member (3) welded to two trailing arms (1, 2) to support the wheels. The trailing arms are tubular and can bend but not twist, while the cross member is rigid for other forces than torsional. The weld seam linking the two profiles are along stress relieved lines to provide a secure mounting. The cross member has an open profile and the outer ends of the profile are welded to the sides of the tubular members where most movement occurs, while the more rigid apex of the profile is welded to the upper or lower face of the trailing arms.
Patent DE-2750148-A1 (DE)
Title: Prepn. of alkali cellulose with high cellulose content - by addn. of soluble sodium salt to the caustic soda liquor (SW 12.12.77)
Inventor: EHRENGAARD DAG
IPC: C08B1/08
Filed: 1977-11-09
Abstract: In the prodn. of alkali cellulose, a soluble inorganic Na salt is added to the NaOH soln. to give an optimum concn. of Na ions, up to 30% (pref. 5-15%) of which come from the salt. The alkali soln. may contain hemi-cellulose from previous use, and also wetting agent. Total Na ion concn. is pref. 16-19 wt. %. The salt is pref. NaCl or Na2SO4. Used in mfr. of viscose solns. for spinning into fibres, etc. and of carboxymethyl cellulose. Swelling of the cellulose sheet is reduced, and prods. with high cellulose content are obtd. without use of high pressure to squeeze out fluid from the treated sheet, which makes comminution difficult.
Patent DE-2753767-A1 (DE)
Title: Carbonless copying papers - with colour components encapsulated in polyadduct from tri:keto-oxadiazine di-or tri-isocyanate
Inventor: SCHNOERING HILDEGARD DIPL ING
IPC: B41M5/165
Filed: 1977-12-02
Abstract: copying papers based on micro-encapsulated colour components are made from a capsule wall material consisting of a polyadduct of an isocyanate of formula (I), (where R is a divalent aliphatic gp; X is O or double bond N-R-NCO) and a tetra- or pent-amine. The micro-capsule walls are impermeable to the colour components and their solvent, break only when pressure is applied during writing, do not agglomerate in suspension and are unaffected by drying at 100 degrees C. The isocyanates have excellent solubility in many solvents, allowing dye solvents causing minimum pollution to be used. Micro-capsule suspensions are stable during storage and transport, and allow very good and uniform coating of paper.
Patent DE-2806310-A1 (DE)
Title: Drinking water pipe reverse flow protection equipment - has pressure control valve opening unloader pipe before separator unit
Inventor: WALETZKO ALFRED
IPC: E03C1/10
Filed: 1978-02-15
Abstract: The equipment protects drinking water pipes against the flow of waste water in the reverse direction, having a separator tube sliding against spring action underr a pre-determined water supply pressure into a discharge boss with non-return valve and thus allowing free water flow. When pressure falls it slides back into a position shutting off the flow. A pressure control valve (11) is connected via a hydraulic control pipe (13) to the drinking water supply pipe (4) on the one side, and to the consumption side (5) of the separator unit (1) on the other. When pressure difference between supply and consumption sides falls below a set minimum, this shuts off the water supply to the separator unit, and at the same time opens up an unloader pipe (15) between the shut-off point (14) and the separator unit, and connected to the portion of the supply pipe (4') between them. With increased pressure difference the water supply is freed again and the unloader pipe it shut off.
Patent DE-2809415-A1 (DE)
Title: Air deflector for burner atomising nozzle fuel burner - has beaker shape with hole and air slots in wall
Inventor: HERRMANN GERHARD
IPC: F23D11/40
Filed: 1978-03-04
Abstract: The flow blocking arrangement is installed in front of an atomising nozzle of a pressure atomising oil burner, to deflect the combustion air in the nozzle region. The resultant flame requires only a low oil flow rate. The deflecting arrangement (10) is a circular cylindrical beaker with opening in beaker bottom in front of the nozzle (4). The beaker wall (16) has airinlet slots (22) formed by overlapping parts of the beaker wall. The beaker can be adjusted axially in the burner tube (1).
Patent DE-2810967-A1 (DE)
Title: IC engine ignition system - has inductive pick=up determining ignition instant with first sensor coil, and second coil can be added adjacent to it
Inventor: SOEHNER GERHARD DIPL ING
IPC: F02P5/155
Filed: 1978-03-14
Abstract: The system has a rotating inductive pickup unit with at least two sensor coils, generating different switching instants of a switch in the ignition coil primary circuit. The switching instant is determined by the pickup voltage reaching a threshold. A sensor coil (11) generates the pickup (10) output signal and at least one further coil (12) can be connected by a switch (15, 21). Consequently the pickup (10) output signal is the result of superposition of signals of all sensor coils (11, 12). The switch (15, 21) is controlled by operating parameters of the system.
Patent DE-2814025-A1 (DE)
Title: Rapid charging system for batteries - is terminated by sensor when charging voltage rise in unit time becomes zero
Inventor: SCHUMACHER HANS
IPC: H01M10/44
Filed: 1978-03-31
Abstract: The rapid charging system is for batteries which are composed of nickel cadmium cells and have a drooping voltage characteristic when the temp. rises. The charging operation is interrupted as a function of the cell temp. A sensor monitors the battery voltage change in unit time (dU/dt) and cuts off the charging current when dU/dt becomes zero. The battery (B), consisting for example of 8 to 14 cells, is charged through a resistor (Rv). Parallel to the battery, a second resistor (R) is in series with a capacitor (C) which is switched ON every 10-30 sec. for 1-2 sec. by a time switch (T). An operational amplifier (V) across the resistor (R) measures the current voltage and compares it with that on the capacitor.
Patent DE-2820370-A1 (DE)
Title: Grinding sheet attached releasably to grinding disc with adhesive - by providing sheet with layer increasing shearing and reducing stripping forces
Inventor: MARTON MIKSA
IPC: B24D9/08
Filed: 1978-05-10
Abstract: Grinding sheet is releasably attached to a flexible rotatable supporting disc by providing the reverse face of the grinding sheet with a layer which is coated with an adhesive serving to attach the sheet to the disc. The adhesive makes only partial bond with the layer and the adhesion is strongest to withstand the forces acting in the plane of the sheet but weakest in the plane normal to the sheet. Sheet can be quickly replaced due to weak adhesion in the normal direction without tearing the sheet. Layer withstands the shearing forces at the interface whilst simultaneously reinforcing the material of the sheet.
Patent DE-2821488-A1 (DE)
Inventor: HUG WERNER
IPC: G01N33/36
Filed: 1978-05-17
Abstract: A yarn (1) is drawn off from a spinning bobbin (3). It passes through a drawing-in delivery unit (4) and a heater (6) to a twister (8) and subsequently leaves the texturing zone through an exit delivery unit (10). The torque exerted by the twister (8) on the thread (1) sets the latter in rotation about its own axis (11). Since, in so far as there are no yarn deflections, the counter-torque is generated virtually only between the nip of the drawing-in delivery unit (4) and the heater (6), the respective thread piece between the heater (6) and the twister (8) has approximately a uniform twist frequency. The twist frequency of the thread (1) can therefore be detected at any point within this zone, namely heater (6) and twister (8). A detector (13) performs this function. This method for determining the twist of thread structures is simple in terms of measuring technique, gives reliable results and also offers the possibility of providing simple, practical and cheap meausuring devices. <IMAGE>
Patent DE-2834445-A1 (DE)
Title: Heavy duty tipper mechanism for road vehicle - operates single ram on pivot mounting on articulated coupling
Inventor: JOURDAN KLAUS DIPL ING
IPC: B62D53/08
Filed: 1978-08-05
Abstract: The heavy duty tipper lorry is designed for use over rough ground. It has the tipper constructed as a trailer unit which is pivoted about an articulated coupling on the two axle towing unit. The lifting ram pivots with the coupling and the trailer is linked to the coupling by stabilising arms. The rear wheels move forwards relative to the front and middle wheels as the tipping motion takes place. The system allows tipping then the trailer and towing unit are at different ground levels or inclinations.
Patent DE-2838150-A1 (DE)
Title: Streamlined shape for lorry cab - includes sleeping unit in profiled section between cab and load space
Inventor: GILHAUS ALFONS DIPL ING
IPC: B62D33/06
Filed: 1978-09-01
Abstract: The streamlined lorry cab is made in separate front (2a) and rear (11) sections, with the rear section forming a smooth shape between the narrow cab front and the broad load section. It reduces turbulence between the cab and the load and greatly reduces drag. The separate rear section can be a sleeping section or additional seating space for work crews on utility vehicles. It is secured to the cab by bolts and seals. The cab section is made by conventional means.
Patent DE-2839438-A1 (DE)
Title: Lathe chuck assembly for holding universal joints - has jaw assemblies mounted for radial movement pair of each having concave conical member for holding joint
Inventor: REEDER MARION F
IPC: B23B31/167
Filed: 1978-09-11
Abstract: The self-centring lathe chuck assembly is for positioning and holding universal joints and associated propeller shafts. It comprises a pair of jaw assemblies mounted for radial movement toward and away from one another and each having a concave, conically shaped member for receiving and holding a universal joint journal cross. Different sizes and types of universal joints can be held in a given pair of jaw assemblies. The centre or axis of the journal cross is automatically aligned with the turning axis of the lathe, thus eliminating the need for a different kit or jaw assembly for each different universal joint.
Patent DE-2842407-A1 (DE)
Title: Surface treatment of workpiece in sealed chamber by glow discharge - where ionisation plasma burner is used to reinforce ionised gas in chamber, e.g. for nitriding or carburising steel
Inventor: STAUDER NORBERT
IPC: C23C8/36
Filed: 1978-09-29
Abstract: In the chamber, the ionisation of the gas is reinforced by the additional emission of ions which are created externally; and the workpiece is pref. treated in the region of a falling current-voltage characteristic for the gas discharge. The workpiece pref. forms an electrically neutral element between a cathode and an anode, or may be used as the cathode or anode in the chamber. The treatment pref. occurs at an elevated temp., esp. in a thermally-insulated chamber and in vacuo; and the additional emission of externally created ions is pref. maintained by feeding gas into the chamber and igniting the gas, and by removing a corresp. amt. of gas from the chamber. Used for example, the nitriding or carburising of steels via a glow discharge in ionised gas.
Patent DE-2842594-A1 (DE)
Title: Ink supply system to typing head - has supply from stationary vessel controlled by level in travelling vessel
Inventor: HEINZL JOACHIM PROF DR ING
IPC: B41J2/175
Filed: 1978-09-29
Abstract: The system supplies inking to a typing head, particularly in an office, data or telex machine, the ink vessel travelling with the head along the line typed on the paper and being topped up from a further stationary vessel. In the supply passage (6) between the stationary (5) vessel and another vessel (4) travelling with the head (2) a valve system (8) is incorporated controlled by a circuit monitoring the ink level in the travelling vessel. The stationary vessel (5) can be mounted at a higher level than the latter.
Patent DE-2854272-A1 (DE)
Inventor: PARATTE DANIEL
IPC: G04G17/04
Filed: 1978-12-14
Abstract: An electronic watch movement is formed from a flexible substrate which is enabled to fit the relief of the watch movement frame by openings formed therein. A conductive metal coating is affixed on the substrate covering the openings, and portions of the coating are removed to form an electric conductor grid with some coating sections left over some openings. The coating support the substrate between the openings and mount the substrate in the frame by bending so that the coating supports sections to conform to the frame relief.
Patent DE-2900878-A1 (DE)
Title: Hydraulic deformation of fittings on pipelines - by hydraulic cylinders with circular segments in split frame
Inventor: DELBECK WILHELM
IPC: B23P11/00
Filed: 1979-01-11
Abstract: Fittings and branch connections are joined to existing pipelines with a smaller outer diameter than the bore of the fitting by a hinged frame with two semicircular parts which can be closed to a ring. Four circular segments are radially guided and can be moved inward by two hydraulic cylinders on each. The pressure is exerted to close the gap between fitting bore and pipeline outer diameter after the end of the fitting has been heated by a glow cable. The result is a uniform deformation without damage to the pipe which saves the manual deformation by hammer blows. Useful for incorporating extra branch lines in grid gas systems. To join the pipeline (1) to a fitting, a two-part frame (3) which is hinged by a pivot (4) is applied around it and closed by a pin (5). Each part carries four hydraulic cylinders (6) and two tubes (10) in a radial arrangement. Circular segments (7) are guided by plungers (11) in the tubes (10) and can be applied by two cylinders each against the fitting. The fitting itself (not shown) is pushed up to the other side of the distance pieces (8) and the pressure is applied after glow cables, separated from the segments by insulating strips, have heated up the fitting rim.