baber/WOPTO huggingface dataset:
Patent DE-2345980-A1 (DE)
Title: Speech signal evaluation circuit - has reference signal output from stage preceeding later delay stage, with separating amplifiers
Inventor: KERSTEN RUDOLF DR ING
IPC: G10L25/93
Filed: 1973-09-12
Abstract: The speech signal evaluation circuit has a delay line network. The outputs of the n stages have connections from which signals delayed by the separating amplifiers can be taken off. In dependence on the desired delay, the input of the network or the output of one of the stages of the network is connected via a separating amplifier with a connection for the reference signal, and this stage is arranged in the signal path before the stages for the delayed signal. Preferably each network has 42 stages, and the outputs of stages 22 to 42 have connections for tapping off delayed signals. The output of stage 21 has a connection which gives the reference signal and can be combined successively with the outputs of stages 31 to 42, to give a signal with stepwise increasing delay. The number of connections and separating amplifiers is reduced.
Patent DE-2346761-A1 (DE)
Title: Sludge level in sedimentation tanks measuring device - with heat conduction of water and sludge measured by four sensor elements
Inventor: FRAHM JUERGEN
IPC: B01D21/32
Filed: 1973-09-17
Abstract: This heat conduction is a function of solids concentration, and the four sensor elements are arranged below each other and, in order to eliminate the effects of temperature, contamination and flow, are combined in two electric bridges supplied with constant current and directly heated. The heat conduction is converted into electric voltages applied to comparators allocated to the upper and the lower sensor pair, and biased in the opposite sense to voltage variations when sludge level varies. Their two outputs linked by resistors form together a signal, whose polarity depends on the comparator bias and the unbalance of the upper or lower bridge, thus showing the deviation sense. This signal controls a follow-up device which indicates the state of the probe, and thus of the sludge level.
Patent DE-2351511-A1 (DE)
Title: Position determination circuit - uses pulse radar stations, such as two marine D radar stations for strongly disturbed targets
Inventor: NIESS PETER DIPL-ING
IPC: G01S13/72
Filed: 1973-10-13
Abstract: Automatic target tracking is performed. In order to save digital storage locations during clutter decorrelation after manual signal pre-processing, only the binary coded radar video signal evaluated over several aerail revolutions are added up in a nonrecursive integrator; after low-pass filters have reached steady state, the corresponding bearing signals are delivered; they are then processed in real time by a permanently allocated, or multiplex wandering window detector operated in time; target beginning and end signals are used by a following line estimator, together with single and double bearings; after a disjunctive linking over two consecutive range rings, they are stored in an intermediate bearing store with a suitable number of bits.
Patent DE-2363957-A1 (DE)
Title: Tool shaft in machine tool - is vibration damped by two-piece cast metal construction held in chuck
Inventor: KAUDERER ALFRED
IPC: B23B27/00
Filed: 1973-12-21
Abstract: The vibration damped tool for swarf-producing machining of a workpiece, has a head which carries one or several blades and a shaft which is at least partially of one-piece construction with the head. The shaft has at least two parts, the limiting contacting surface of which forms a sharp angle with the longitudinal axis or plance of the shaft. The shaft components are rigidly connected with each other in the ready to operate condition, and are pressed against each other by means of a tension force. The individual parts of the tool shaft are at least partly made from cast metal, particularly steel or iron. The tool shaft, between its underside and its upperside is clamped in a cast-metal chuck of like material.
Patent DE-2400786-A1 (DE)
Title: Separation of denser substances from metal melts - by centrifugal force
Inventor: GERLACH RUDOLPH DR ING
IPC: B22D1/00
Filed: 1974-01-09
Abstract: Separation of substances of differing sp.gr. in the melt stream by the use of centrifugal force whereby (a) a separation of substances of greater sp.gr. in the melt flow can be continuously maintained by heating centrally in a cylindrical or concial refractory-line vessel rotating correspondingly rapidly, in accordance with laws of centrifugal force, (b) this separation can proceed during the course of reaction in conditions most favouring such reaction, (c) optimum physical conditions for heat transfer can be achieved for the centrifugal separation process, (d) by step-formation of the internal diameter and varying the angle of inclination of the reaction vessel the throughput per unit time can be regulated. The process is used in the production of iron by direct reduction, refining processes etc.
Patent DE-2409481-A1 (DE)
Title: Device for multi-bath immersion treatments - suitable for the acid polishing of glassware
Inventor: SCHERER PAUL OTTO
IPC: B65G49/04
Filed: 1974-02-28
Abstract: In the treatment of workpieces by immersion in aggressive liqs. e.g. for the acid polishing of glassware, the objects being treated are placed in a container which is supported by suspension gear and dipped into the baths. The baths are arranged in a row alongside a conveyor track on which a trolley is mounted and used to carry the suspension gear on which interchangeable containers can be mounted. The conveyor track pref. and extends beyond the row of baths by the width of one bath and is fitted with both vertical and lateral guides for the trolley which pref. has a mounting for a fork pivotted by a motor, the free ends of the fork being used to hold a work-basket or a dum. Used for e.g. electroplating, etching, or acid polishing of glassware. The container i.e. a work-basket or drum, can be successively immersed in a row of baths.
Patent DE-2414979-A1 (DE)
Title: Prodn of bitumen blocks from molten steam - by water-cooling on endless belt to form strip, then pressing
Inventor: ULKE GOTTFRIED
IPC: C10C3/18
Filed: 1974-03-28
Abstract: A method of converting molten bitumen into solid blocks by water-cooling consists of applying the bitumen as a flat strip onto an endless, inert conveyor belt and then conducting the belt through a water bath until the bitumen hardens; the hardened bitumen is then removed from the belt and converted into blocks, pref. either by rolling or folding it up and then pressing into blocks, or by cutting it into short lengths and pressing these together to form blocks. Simple and economic process, without the need for a large plant area.
Patent DE-2415665-A1 (DE)
Title: Elastic sealing for vehicle tailgate when off loading - has two concentric hoses on vertical sides of hatch and curtain secured by end to building wall
Inventor: PETER JUSTUS
IPC: B65G69/00
Filed: 1974-04-01
Abstract: One or more toroidal parts are arranged on the two vertical sides of the tailgate. Each part consists of an elastic hose which surrounds another hose e.g. foam rubber concentric with it and with greater flexibility and elasticity than the first hose. Each part is connected to a device which enables the parts to be moved closer or further apart and each part has a curtain which is secured by its end to the wall of the building. Each part has a ventilation device which comes into operation when a set minimum or maximum pressure is exceeded.
Patent DE-2427031-A1 (DE)
Title: Extn of oil, sulphur, etc. from natural deposits - using microwave energy for prim or tert prodn
Inventor: BAN AKOS DR
IPC: E21B43/24
Filed: 1974-06-05
Abstract: In a process for the sepn. of liquefiable or volatile materials in solid carrier substances, esp. rock, whereby the material to be sepd. has greater permeability and dielectricity than the carrier, a magnetic field is generated in the carrier with a frequency corresp. to the natural (resonance) frequency of the material to be sepd., and the material which emanates intermittently from the carrier is removed. The equipment used is smaller than for conventional methods, and the efficiency is higher.
Patent DE-2439158-A1 (DE)
Title: Winding spool drive for fishing-line reel - includes device on drive-crank shaft setting thread guide in rotation and reel in motion
Inventor: GONUALEZ ABELARDO
IPC: A01K89/01
Filed: 1974-08-14
Abstract: The core of the spool is fixed to the top of a shaft which moves inside the axial hole of a sleeve mounted in a casing and joined to the cylindrical casing. The shaft moves to and fro in the hole and in a guide piece below it. On the bottom edge of the sleeve is a conically toothed rim connected to a corresponding bevel gear. A disc shaped piece is joined to a shaft pivot mounted in a hub or bearing in the housing; the shaft projects outside and is driven by a hand crank. On the free surface of the disc shaped piece is a curved spiral groove, in which is a guide shoe from one side of which projects a bolt or cylindrical pin. The bolt/pin rotates freely in a crosswise hole in the spline shaft.
Patent DE-2440806-A1 (DE)
Title: Moulding compsns from cyanate resins - prepd by heating at reduced pressure to remove solvent, adding catalyst and plastifying
Inventor: LINDNER HEINZ-JOACHIM DR RER N
IPC: H01B3/30
Filed: 1974-08-26
Abstract: Moulding compsns. are produced by (i) heating filler-, lubricant- and pigment-contg. bifunctional aromatic cyanate ester resins at 40 Torr to 150 degrees C, whereby solvent is removed and compsn. exhibits a preliminary degree of crosslinking; (ii) cooling and comminuting compsn. and homogeneously working in a catalyst by mixing in a drum mixer and (iii) kneading and plastifying at 60-80 degrees C under normal pressure to remove residual solvent traces.
Patent DE-2446300-A1 (DE)
Title: Control device for a motor - is for motor vehicle fan protecting it against thermal overload in case of blockage
Inventor: HERMA PAUL ING GRAD
IPC: H02P7/288
Filed: 1974-09-27
Abstract: A controlled and current limiting power stage (V1, V2) is in series with the motor (M). It is controlled by a control device (V9, V10, R11, R18, V6, V5) which adjusts the current flowing through the motor to a specified constant value. A bistable flip-flop (V3, V8) is controlled by the motor temperature or by a component in the power stage (V1, V2) carrying the motor (M) current. When the temperature exceeds a threshold, flip-flop trips from a first state into a second, in which it blocks current supply to the motor through the power stage (V1, V2). It is reset by a switch (S) into its first state.
Patent DE-2447325-A1 (DE)
Title: Transducer test appts. for transformation errors - has phase derived from standard transducer and other voltage including ninety degree shift
Inventor: BRUECKEL WALDEMAR DIPL ING
IPC: G01R35/02
Filed: 1974-10-03
Abstract: The two input terminals of a first loop wire arrangement (SF) are switched by a first two-pole reversing switch (S1S2) in one switch position via a first barrier resistance (Rv1) to a terminal (K) supplying voltage derived from the standard transducer (Nw) or directly to a resistance (R) lying on reference potential. In the other switch position they are switched directly to the terminal supplying voltage derived from the standard resistance or, via a second barrier resistance (Rv2), to the resistance lying on reference potential. The input terminals of the integrating amplifier (IV) are switched to the tap of the loop wire arrangement.
Patent DE-2448355-A1 (DE)
Title: Soft drink dispenser - with dispensing nozzle for pressurized diluent controlling separate pump for concentrate
Inventor: GREEN DAVID WILLIAM
IPC: B67D1/12
Filed: 1974-10-10
Abstract: A beverage is prepared by a dispersing nozzle which receives a concentrated drink from a vessel through a pump. The pump is switched on by a reed switch which is actuated by a moving magnetic plunger as soon as a diluent, pressurized by carbon dioxide, is allowed to flow to the dispersing nozzle. The concentrate remains unadulterated by CO2 which pressurizes oly the diluent. As the CO2 need not be purged from the concentrate tank the appts. is portable and less expensive than prior art.
Patent DE-2448722-A1 (DE)
Title: Easily manipulated heavy masonry building block - with grip recesses with handles on surface
Inventor: SPITZNER JOACHIM DR ING
IPC: E04C1/39
Filed: 1974-10-12
Abstract: The purpose is to simplify transport by hand, and the mortaring process, for building blocks of comparatively heavy weight, esp. over 10 kg., using in wall construction and other masonry work. On the surface (5) there are gripping cavities (2) fitted with handle grips (1); these may be made of plastics, and let into the cavities. There may be two grip cavities which are diagonally opposed to each other. The handles pref. project beyond the block surface by no more than the thickness of a layer of mortar. There may be vertically running grooves (3, 4) at the end faces, tapering from the filling end to the other end, pref. wedge-shaped in depth (8) and/or width (9); with these the application of mortar is simplified.
Patent DE-2451419-A1 (DE)
Title: Field effect controlled liquid crystal display - has polariser and reflector arranged with gaps between them and liquid-crystal layer
Inventor: FUNADA FUMIAKI
IPC: G09F9/30
Filed: 1974-10-29
Abstract: The liquid crystal display has a sandwich arrangement of liquid crystal layer between two transparent electrodes, at least one of which is fed with a control signal. It differs from similar displays in having a polariser arranged in front of the liquid crystal layer and a reflector behind it. When an electric field is applied, the orientation of the liquid crystal molecules is changed, so that light reflected back through the layer from the reflector is absorbed by the polariser. Pref., at least one of the electrodes is comb-like or lattice-like and is arranged on the main surface of the liquid crystal layer to form a segmented electrode.
Patent DE-2453859-A1 (DE)
Title: Grinding mill with resonance effect - has grinding drums at the ends of reciprocating spring loaded arms
Inventor: TASNADI GYOERGY
IPC: B02C17/14
Filed: 1974-11-13
Abstract: The grinding mill has a balanced dynamic system and it can efficiently pulverise even if it is not fully loaded. The grinding drums have filling and outlet openings and the drums contain loose grinding elements. In the diagram the grinding drums 5, 6, 7, 8 are arranged at the ends of beams 3, 4 in the vertical plane which rock about their mid position. The drums 5,7 are fitted at the extreme ends of the pivoted diagonal beam 3 and the lower drum 5 is connected to the actuating rod 13 which is reciprocated by the crank on shaft 10. The other diagonal beam 4 carries drums 6, 8 and the upper drum 6 is connected to another reciprocating rod. These rods are actuated by a common shaft 10 which rotates two cranks which are at right angles to each other. The drums are connected with spring elements and the beams rock about a common centre 1.
Patent DE-2455412-A1 (DE)
Title: Making pipe elbow of reinforced plastics - USING DISPOSABLE MOULD OF POLYSTYRENE OR POLYETHYLENE
Inventor: ANDERSSON LASSE ERIK
IPC: B29C70/16
Filed: 1974-11-22
Abstract: In making a pipe elbow of reinforced plastics matl. where the fibres and the resin are laminated on an internal mould which is used once only, the mould is of a thin walled plastics matl. such as polystyrene or polyethylene, pref. having a flange at the end for attachment to a working surface. After lamination, the mould is destroyed mechanically leaving a pipe elbow with a smooth inner surface.
Patent DE-2456447-A1 (DE)
Title: Swimming or bathing installation with polyurethane cladding - comprising closed-cell foam with firmly adhering massive top layer
Inventor: MUELLER GERHARD DR
IPC: E04H4/00
Filed: 1974-11-29
Abstract: A swimming or bathing installation such as a tank or pool has walls of load-bearing concrete or steel etc. on which a polyurethane cladding is mounted. this cladding consists of a closed-cell polyurethane foam that is sprayed directly onto the load bearing wall, and a firmly adhering top layer comprising massive polyurethane. No risk of leaks, Good heat and noise insulating characteristics. The claimed structure may be relatively easily erected inside existing buildings, e.g. in the basement of a house, Mfr. involves using a fungus-resistant polyurethane hard foam with apparent density 80-160 kp/m3 and compressive strength 5-8 kp/cm2. This may be prepared from a higher-functional polyester or polyether polyol, with technical methylene diphenyl diisocyanate, in presence of usual catalyst, stabiliser and foaming agent(s).
Patent DE-2456736-A1 (DE)
Title: Camera with piezoelectric crystal for flash lamp fitting - prevents blurring due to impact of ignition on crystal
Inventor: SCHUCHARDT GERHARD
IPC: G03B15/04
Filed: 1974-11-30
Abstract: Photographic camera comprises a film winder and/or tensioner, and a fitting for a flash lamp with a supply circuit containing a piezoelectric crystal. In synchronisation with the shutter, two impact members are moved simultaneously in opposite directions by the same amount of force, to act on the crystal to generate a piezoelectric voltage. Pref. the two impact members consist of scissor-like levers held together by a spring, and are locked by the film winder and released by a release mechanism.
Patent DE-2459073-A1 (DE)
Title: Mine channel frame support strutting - strap pierced for bolt linked to strut bolt grasps channel top and arches underneath
Inventor: SCHAEFER HEINRICH-PETER
IPC: E21D11/28
Filed: 1974-12-13
Abstract: The channel support frame strutting system for coal mines consists of a strap (6) whose one end (8) clasps round the flange (5) of the channel frame (1) at the face side and whose second end (9) reaches down to the centre base of the channel (10). The strap end is pierced here (11) to accept the end (12) of a screw bolt (7) whose far end (14) is secured to the main strutting bolt (4). It is preferable for the strap to simulate the shape of the frame channel and to be cranked (17) at the end (9) under the central base area of the channel (10). This cranked part may lie below the pierced entry (11) for the bolt (12).
Patent DE-2505126-A1 (DE)
Title: Four way servo valve with mechanical return - has central control chamber in contact with valve housing pressure connection
Inventor: BARTHOLOMAEUS REINER
IPC: F15B13/043
Filed: 1975-02-07
Abstract: The servo valve connection plate simultaneously forms the valve housing of the second valve stage, and the pressure connection is in the centre of the plate, while the tank connections are at the outside. The control piston of the second stage is guided in an axially adjustable control sleeve. The central control chamber of the second stage, enclosed by the control piston, is connected to the pressure connection in the valve housing. The mechanical return rods between the control piston of the second stage, and the control member of the first stage are surrounded fluid-and pressure proof by a tubular body in the area between control sleeve and valve housing.
Patent DE-2512454-A1 (DE)
Title: Flame retardant prodn. in hexa-bromo-cyclododecane mfr. - by treating mother liquor with alkali and distn. of volatiles
Inventor: MUELLER HANS-RICHARD DIPL CHEM
IPC: C09K21/08
Filed: 1975-03-21
Abstract: In flame retardant prods. by reacting cyclododeca-1,5,9-triene (I), dissolved in a 1-4C alkanol (II) in a (I): (II) wt. ratio of 1:2-20, with Br2 in a (I):Br2 molar ratio of 1:2.5-4 at -20 to +25 degrees C and isolating the 2 phases from the prod., consisting of a solid phase of hexabromocyclododecane (III) and a liquid phase of mother liquor (IV), (1) 100 (wt.)pts. (IV) are mixed with 1-25 pts. 5-50% aq. alkali soln. and mixing is continued for 1-8 h at 20-120 degrees C; (2) the prod. is opt. mixed with 5-50 pts. H2O; (3) the organic phase is isolated from the prod. from (1) or (2), consisting of a liquid aq. and a liquid organic phase; and (4) the volatiles are distilled from the organic phase until volatiles no longer distil at 0.001-0.1 bar and 30-110 degrees C; and (5) if desired, the prod. from (4) is washed with 0.2-2 times its wt. of water and the volatiles are distilled from the resultant organic phase as in (4). Used for flameproofing elastomers, polyurethane plastics or paper prods. The flame retardant is a clear, viscous, chemically inert, almost odourless and non-volatile liquid with good flame retardant action. The mother liquor from the process can be converted to a non-polluting prod., e.g. by combustion.
Patent DE-2515941-A1 (DE)
Title: Parted-off section conveyor - has ejector working between holder rollers and driven in synchronism with shear
Inventor: BERGMANN EWALD
IPC: B65H35/04
Filed: 1975-04-11
Abstract: A conveyor is for sections parted off by a shear from a strip of material, the shear being followed by a holder and guide unit with transverse rollers, dispensing the sections to the conveyor delivering to a stacking mechanism. Between the rollers (22) of the guide unit (20) is an ejector mechanism (23), whose mechanical drive is taken from that of the shear l(13), so as to work in synchronism with the latter. The shear can have a stationary lower knife (14) and a moving upper one (15), while the guide unit is mounted above the plane in which the sections (26) are transported. The sections are deposited on the conveyor, which is in the form of a magnetic belt.
Patent DE-2519237-A1 (DE)
Title: Pneumatic multi-coordinate position detector - has spherical head probes each with boreholes having axes in three coordinate directions
Inventor: PAHL WOLFRAM ING GRAD
IPC: G01B13/00
Filed: 1975-04-30
Abstract: The pneumatic position detector is relevant to location finding in machine tools or other mechanical moving objects. A typical unit consists of a mounting shaft with its longitudinal axis collinear with a principal coordinate axis (Z) of the main assembly. In the plane orthogonal thereto are four symmetrically arranged spikes with spherical heads each containing three boreholes coaxial with one of the three main coordinate axes, (X1 Y1 Z1X2 ...from the shaft and also has three boreholes (X4, Y4, Z4). Each borehole cooperates with a common air flow duct so that pneumatic flow responses indicate the proximity of a locating face to one of the sensing holes.
Patent DE-2520935-A1 (DE)
Title: Sewage plant screening device overload control - adapts drive to brief excess power level before switching off
Inventor: MARZLUF WERNER ING GRAD
IPC: E02B8/02
Filed: 1975-05-10
Abstract: A control system for the drive of stroke making devices subject to periodically occurring mechanical overloads, esp. for clearing rakes and similar machinery in sewage farms, water purifying installations, etc., has a meter for the overload and a switching circuit for the drive. On overloading, the stroke arrangement is driven at reduced speed or comes to a stop, and a driving moment greater than that exerted by the overload is maintained for a brief period after the onset of the overload, before the drive is switched off. After the cutout of the drive following overload, there is a further delay, during which time, the stroke device runs back a little before the power is switched on again. The drive is adapted to overloads which can be overcome and to thos which cannot be overcome. The safety of the various parts of the installation is improved. After switching off and a slight run back of the stroke mechanism, the blockage on the grid may have deformed itself so that when the power is reconnected, the blockage can be cleared without the necessity of a signal to the operative.