baber/WOPTO huggingface dataset:
Patent DE-2920303-A1 (DE)
Title: Multiple channel TV remote monitoring system - uses coder and modulator for each camera and decoder and demodulator for each screen
Inventor: FRIEBE EBERHARD
IPC: G08G1/04
Filed: 1979-05-19
Abstract: The method of monitoring remote positions using television cameras for traffic control etc., uses a coding device for each camera each followed by a modulator for connections to a common transmission line. At the receiving point, after passing through intermediate amplifiers, the signals pass through a demodulator for each monitoring screen. A decoding device for each demodulator can give a digital coded signal from the demodulated video signal. The coding device has a summing amplifier between the input and output, and the input is also connected to a preamplifier and two amplitude filters. These are interconnected with an AND-gate and counter for counting the image free hold signals and a decoder and multiplexer which generate a coded bit pattern for feeding back to the summing amplifier.
Patent DE-2920308-A1 (DE)
Title: Steering system for heavy vehicle - has low slung lateral driving position with centrally mounted steering box
Inventor: KRAUS WOLFGANG ING GRAD
IPC: B62D7/00
Filed: 1979-05-19
Abstract: The steering linkage for a heavy vehicle with a low slung driving position has a steering column (18) driving a steering box (12), offset from the driving position and linked to the front wheels by a long linkage (10). The driving position can be low on the road to increase the loading capacity above the driver, e.g for a large capacity touring coach. The steering column is adjustable for rake about the transverse link shaft (13) with universal joints at each end (15, 16). These ensure a consistent steering control even with a small frontal collision pushing in the front of the vehicle.
Patent DE-2920743-A1 (DE)
Title: Toy construction kit elements - are formed as hollow dice open on one side and having square extension on all closed exterior sides slightly smaller than basic element
Inventor: STAUDINGER ALFONS
IPC: A63H33/06
Filed: 1979-05-22
Abstract: The element of a toy construction kit is designed to fit together with additional correspondingly shaped elements which are formed as hollow disc open on one side. The elements are made in such a way that when fitted together the ends of the connecting surfaces are made into joints and hollow spaces which form the receiving areas for further construction elements (9 11 13, 15, 16) which can be inserted. All the closed exterior sides of the construction elements are fitted with one square extension each with the extension having a smaller surface length than the measurements of the basic element.
Patent DE-2924242-A1 (DE)
Title: Non-alcoholic fresh milk ultrafiltration permeate drink - pref. contg. added lactose concentrate obtd. by reverse osmosis of permeate parts
Inventor: ENEA LIVIU DIPL ING
IPC: A23L2/38
Filed: 1979-06-15
Abstract: Refreshing non-alcoholic drink consists entirely or almost entirely of a permeate produced from fresh whole- or skim milk by ultra-filtration. Prepn. of a natural, healthy beverage finds a new economic use for increasing milk prodn. The first ultra-filtration yields a casein concentrate for cheese prodn. Further reverse osmosis of permeate yields a lactose concentrate which enriches the permeate.
Patent DE-2933076-A1 (DE)
Title: Electrical power tool with two-speed gear - has gear-change wheel electromagnetically coupled to drive cog
Inventor: WOLF OTTO DR ING
IPC: B23B45/00
Filed: 1979-08-16
Abstract: The power tool, e.g. a drill, has its switching wheel and its drive cog electromagnetically synchronised and coupled via an electromagnetic clutch. (The switching wheel is associated with the cog belonging to the second gear speed of the tool and is used for changinggear). The drive cog is designed as pole wheel and the switching wheel as short-circuit cage. The pole wheel is excited via slip rings with dc current. Alternatively, the drive cog may be the cage and the switching wheel the pole wheel. There are relatively few parts liable to wear and there is reliability and simple, quiet gear change.
Patent DE-2938682-A1 (DE)
Title: Immersed pump operating device - has pump motor switch operated by ball travelling along track inside float attached to electric cable
Inventor: KLIEMT WOLFGANG
IPC: F04D15/02
Filed: 1979-09-25
Abstract: A float (11) has a cable (12) passing through its base, connected to a microswitch (13) which controls the power supply to the pump motor. The switch is mounted on a member (15) forming a track along which a ball (14) can roll. As the float rises the cable moves so that the slope of the track is altered, causing the ball to operate the microswitch. When the ball rolls to the opposite end, it travels onto the microswitch control arm (131) and the motor is switched off. The cable can be twisted about its axis within a given amount. The track for the ball can be curved, and the travel of the ball can be adjusted within limits to operate at different positions.
Patent DE-2940958-A1 (DE)
Title: Sharp flanked pulse generator - uses power transistor feedback path to turn itself on and off
Inventor: HENDRIKS JOZEF HENDRICUS
IPC: H03K17/60
Filed: 1979-10-09
Abstract: The pulse generator has a power transistor, a voltage source between the collector/emitter of this transistor, a feedback path between the transistor's emitter and base, a switch to turn the transistor on and off, and a device that activates the feedback path after turn-off has been initiated. The activating device contains components that respond to the current passing through the collector/emitter path of the power transistor in order to remove the base current of this transistor when the emitter current exceeds a given value.
Patent DE-2943169-A1 (DE)
Inventor: ODA HAJIME
IPC: G04G15/00
Filed: 1979-10-25
Abstract: An electronic timepiece in which scheduled time data on specified date or on specified day of the week are set into a counter and their contents are displayed. When the scheduled time comes, an alarm sound is generated. If specific data are inserted instead of the instruction data representative of the date or the day of the week, the timepiece generates the alarm sound repeatedly at the scheduled time. A number of scheduled contents can be set using the same circuit construction and set action for generating repeatedly the alarm sound can be made easily.
Patent DE-3001050-A1 (DE)
Title: Aiming sight observable from second point - has glass plate with light permeable mirror reflecting to television receiver
Inventor: DASSLER HANS ULLRICH ING GRAD
IPC: F41G1/54
Filed: 1980-01-12
Abstract: The aiming sight allows its setting to be observed and checked from a second point. It is esp. for armoured fighting vehicles. In front of the outlet lens of the sight (8) there is a glass plate (1), containing in its central part a light-permeable angled mirror (9). This reflects less than 50 per cent of the light sideways, this light being transmitted via an adaptor (3) to a television receiver (4). The amount of light so reflected can be approx. 20 per cent of the total, the reflective area of the mirror being approximately one-tenth that of the lens.
Patent DE-3001277-A1 (DE)
Title: Bag production unit for retail selling counter - has conveyor transporting bag from production site and reorientating them with open side directed horizontally
Inventor: LANGEN MARINUS J J
IPC: B65B5/02
Filed: 1980-01-15
Abstract: The cash-desk counter incorporates a machine for producing bags, especially platic ones, for retail goods, and for keeping the bag open during packing. The frame of the counter has a packing unit (18). The bag-producing machine (30) is positioned inside the frame. A conveyor (40) conveys an open bag from the production point to the packing unit (18) in such a way that the bag is orientated in a horizontal position with its opening at the side. The conveyor (40) repositions the bag vertically. A bag support ledge (50) is positioned lengthwise in relation to the counter, at the packing unit (18).
Patent DE-3004494-A1 (DE)
Title: Cell for measuring oxidant concn. in liquids - esp. chlorine content of water, where cell contains glass beads agitated by water flow and cleaning electrodes in cell
Inventor: SCHLAICH ROBERT R
IPC: G01N27/38
Filed: 1980-02-07
Abstract: Cell consists of a housing (1) contg. a cavity (3) through which the liq. to be tested flows from an inlet to an outlet. Cavity (3) contains two measuring electrodes (20,21), and numerous artificial particles (I) made of an insulating material. Particles (I) are agitated by the flow of liq., and their smallest dimension is larger than the dia. of the outlet holes (11) for the liq. Particles (I) are pref. glass beads with roughened surfaces used to clean the interior of cavity (3), and esp. the working surfaces of electrodes (20,21). Electrode (20) pref. has a conical working surface (35), and is made of metal, whereas electrode (21) is pref. a metal foil. Housing (1) and its end walls (18,19) are pref. made of plexiglass (RTM). Used e.g. for the determn. of free chlorine left in drinking- bath- or tap-water after C12 or its cpds. have been added to disinfect the water.
Patent DE-3004918-A1 (DE)
Title: Gear pump or motor - has two pairs of meshing gears with different gear ratios alternately drivable e.g. via solid through hollow shafts
Inventor: SCHULDT DIETRICH
IPC: F04C14/02
Filed: 1980-02-09
Abstract: The gear pump or motor comprises at least two pairs of meshing gear wheels of which either pair is separately drivable. The pairs have gear ratios other than one to one. One gear pair (27,29) may be drivable by a shaft (25) extending through a hollow shaft (20) capable of driving the other pair (23,24). The two gear pairs may be separated by an intermediate baffle plate (33) in the housing (10-13). The driven gear wheels (24,29) may be fixed on a common shaft (19). The gear wheel pairs may have different widths. The two shafts (20,25) may each carry a gear wheel (36,35) alternately drivable by an axially slidable gear (39).
Patent DE-3012644-A1 (DE)
Title: Solid waste separation water dam - is concave on side facing flow and pref. comprises offset rows
Inventor: ROEPKE R PROF DR ING
IPC: E02B5/08
Filed: 1980-04-01
Abstract: Structural elements in a water stream with suspended solids are esp. for dividing and separating solid materials in hydraulic engineering and sewage installations. They are usually of the grating type. The elements are given a concave shape, in any way desired, on the side facing the current. They may be subsequently installed, in front of existing elements. They can be arranged in two or more rows, each offset by half a division, with the concave opening width exceeding the open gap between elements in the next row upstream.
Patent DE-3012880-A1 (DE)
Title: Textile web drying chamber - has additional cold air entering in counterflow with discharged hot air through heat exchanger at top
Inventor: GOTTSCHALK KARL-HEINZ DIPL ING
IPC: F26B23/00
Filed: 1980-04-02
Abstract: The drying chamber for a textile web has the web carried by chains along each edge between the halves of jet bodies with a fan at the entry end. At low level are supply ducts for hot air and air is again extracted through overhead ducts. These are divided by sheets so that used air is extracted through part of each duct and additional fresh air is introduced through the remainder of the duct. These flows of air travelling in opposite directions pass through a heat exchanger, so that the incoming cold air is warmed by the discharged hot air. The roof of the chamber is itself the heat exchanger, formed by the insulated cover and box of the duct. The bottom of the chamber may be used in a similar manner. The partition sheet between the two flows is not insulated.
Patent DE-3014641-A1 (DE)
Title: Rotary drilling swivel - with inner sleeve sliding for hard and locked for soft rock drilling
Inventor: KUSUMI HIROSHI
IPC: E21B21/02
Filed: 1980-04-16
Abstract: A swivel for a rotary drilling of the reverse flushing type transmits the thrust from a hydraulically operated cross-piece to the string of the drill tubes and the roller bit by two rolling friction bearings between an inner and an outer sleeve. The inner sleeve is divided into two which can axially slide relative to each other in keyways. The axial clearance is taken up by a split spacer ring only when drilling in soft strata; in that case the thrust is transmitted to the lower bearing. This allows the same swivel to be used for hard rock as well as soft strata by a simple addition of a sheet clamp ring. In hard rock the bearings are relieved of large upward thrust, so that the bearing life is lengthened.
Patent DE-3017769-A1 (DE)
Title: Sprung shoe for sportsmen - consists of upper plate attached to shoe and lower plate with springs between them located by guides
Inventor: PIEPER GERHARD
IPC: A63B25/10
Filed: 1980-05-09
Abstract: The sprung shoe permits spring assisted jumping for a sportsman. The spring shoe consists of an upper plate to be attached to the foot of the user and a lower plate (2) placed on to the floor with one or more pressure springs (3,4) positioned between them in such a way that the upper ends of the pressure springs are rigidly fitted to the upper plate (1), whilst the other ends of the springs are connected to the lower plate (2). Guide devices for the springs are fitted in the form of stops between the two plates and rigidly fitted central sections loosely enclosed by the springs.
Patent DE-3029201-A1 (DE)
Title: Centrally controlled lighting installation for public buildings - has switches for individual lights allowing their operation independently of central switch
Inventor: CHRISTIANSEN DIETER
IPC: H05B39/04
Filed: 1980-08-01
Abstract: The lighting installation includes a normally-closed central switch (2) which can be opened against the action of a spring, to break the circuit to the lights (3,5,7). A first individual light switch (4) for the light (3) can be operated locally by an operating lever (12) in addition to being operable by attraction of a lever arm (11) by an electromagnet (11). If the central switch is opened briefly, the interruption of the magnetic field of the electromagnet causes the switch (4) to open due to gravitational force on the arm (11). Once the central switch is closed again, the switch contact (10) is opened so the switch (4) does not close again unless the lever (12) is used to close the contact (10). On the other hand, the switch (4) can be opened, even if the central switch is closed, by operating the operating lever (12) to pivot the arm (11) away from the electromagnet. A second individual switch (6) for lights (5) acts similarly to the first but uses an external lever arm (15) and a spring-urged normally-closed switch element (17) connected in series with the electromagnet (14).
Patent DE-3029702-A1 (DE)
Title: Power generator utilising cavitation - has vacuum chamber fixed to floor with pistons reciprocating in side-chambers
Inventor: WENZ DIETER
IPC: F01K21/00
Filed: 1980-08-06
Abstract: The power generating installation utilising cavitation has the vacuum chamber (1) fixed to the floor. The central compartment (10) sidewalls are replaced by several small circular or rectangular pistons (14) or by one large one, reciprocating in the side chamber(s) (13) whose walls form the vacuum chamber boundaries. The condensate chamber (12) underneath the central compartment has a sliding closure. The heating and cooling-water inlets and outlets (22,23; 25,26) can be permanently connected to the systems. Steam pressure energy is used only conventionally.
Patent DE-3031266-A1 (DE)
Title: Convertible table easel - has table top hinged to move into upright easel position
Inventor: GASTINGER ERNST
IPC: A47B83/04
Filed: 1980-08-19
Abstract: The table top which is made of wood or other material is fixed by a hinge to the roller-mounted table support. This ensures that the table top can be moved up into an easel position when required. The table top may be secured at any angle desired by the user.
Patent DE-3042270-A1 (DE)
Title: 3-Acyl-substd. cyclo:butanone derivs. prepn. - by hydrolysing the prod. of the reaction between an acrylic acid deriv. and and alpha-chloro:enamine
Inventor: HEINE HANS-GEORG DR
IPC: C07C45/51
Filed: 1980-11-08
Abstract: The prepn. of cyclobutanone derivs. of formula (I) comprises reacting a ketone of formula (II) with an alpha-chloroenamine of formula (III) and a lewis acid, and hydrolysing the prod. R1 is H, lower alkyl or aryl; R2 is alkyl, aryl, alkoxy, aryloxy, or dialkylamino; R3 and R4 are Me and/or Et or together form -(CH2)n-; R5 and R6 are each alkyl or together with the N atom form a satd. 5- or 6-membered heterocycle opt. also contg. an O atom; n is 4 or 5. (I) are intermediates for plant protecting agents. Esp. (I) can be 4-halogenated and the resulting ketone then treated with aq. caustic alkali and acidified to give 2,2-dimethyl cyclopropane dicarboxylic acid derivs. which can be converted to pyrethrum insecticides. Reaction conditions are mild. In many cases purification of (I) obtd. is not necessary, and the prod. can be used immediately in further processes.
Patent DE-3046104-A1 (DE)
Title: Push-button telephone with number memory - enabling both local and trunk calls to be initiated by two switch operation
Inventor: PLUTA JOACHIM
IPC: H04M3/44
Filed: 1980-12-06
Abstract: The automatic number selection system is applied to special telephone subscribers appts. with a key lockable switch by which the form of call can be selected, or the appts. blocked for outgoing calls. The proposed modification concerns automatic trunk number selection. The trunk number is placed into a memory similar to that for local numbers by lifting the handset, operating the short number key and then forming the required number with the appropriate digit keys. The handset can then be replaced and the number retained in the memory. To select this number for use the key switch remains in the position for normal operation of the instrument. The local short number key is depressed twice to initiate read out and pulse generation of the required number. The utilisation of the circuits and appts. components is thus increased and an extra facility made available.
Patent DE-3049484-A1 (DE)
Title: One side corona discharge treatment of webs and bodies - uses electrode system, comprising point electrode(s) and earthing electrode, mounted in insulator
Inventor: KALWAR KLAUS
IPC: H01T19/04
Filed: 1980-12-30
Abstract: The exclusively single-side corona treatment is intended for material webs, or shaped objects. It an electrode system (7) consisting of at least one point electrode (3) and an earthing electrode (4), both mounted in a fully insulating body (5). The tip of the point electrode protruding from the insulator is offset in relation to the earthing electrode in the direction of the treated surface. The surface is treated by a corona beam (6), extending in the direction of the point electrode longitudinal axis. The treated surface is moved through the region of edge of the corona discharge, relative to the corona beam. The insulator is of cellular structure, having a high resistance to high frequency. It may be made of foamed plastics.
Patent DE-3104044-A1 (DE)
Inventor: SKUBALLA WERNER DR
IPC: A61K31/215
Filed: 1981-02-02
Abstract: 1. Claims for the contracting States : BE, CH, DE, FR, GB, IT, LI, LU, NL, SE Carbacyclin derivatives of the general formula I  see diagramm : EP0057660,P15,F5  wherein R1 is the group OR2 , where R2 is hydrogen or alkyl of 1-4 carbon atoms, or the group NHR3 , where R3 is acetyl, methanesulfonyl or hydrogen, W is a hydroxymethylene group or a  see diagramm : EP0057660,P15,F6  group, in which the OH is in the alpha- or beta-configuration, D is a straight or branched chain alkylene group of 1-5 carbon atoms, R4 is alkyl of 1-7 carbon atoms, and when R2 is hydrogen, salts of these compounds with physiologically acceptable bases. 1. Claim for the contracting State : AT Process for the preparation of the carbacyclin derivatives of the general formula I  see diagramm : EP0057660,P17,F1  wherein R1 is the group OR2 , where R2 is hydrogen or alkyl of 1-4 carbon atoms, or the group NHR3 , where R3 is acetyl, methanesulfonyl or hydrogen, W is a hydroxymethylene group or a  see diagramm : EP0057660,P17,F2 group, in which the OH is in the alpha- or beta-configuration, D is a straight or branched chain alkylene group of 1-5 carbon atoms, R4 is alkyl of 1-7 carbon atoms, and when R2 is hydrogen, salts of these compounds with physiologically acceptable bases, characterised in that a double bond is introduced in known manner in the 2-position into a compound of general formula II  see diagramm : EP0057660,P17,F3  by reacting it with a lithium alkylamine of general formula III  see diagramm : EP0057660,P18,F1  wherein R8 and R9 are alkyl of 1-10 carbon atoms, cycloalkyl of 3-6 carbon atoms or a trialkylsilyl group in which the alkyl is of 1-4 carbon atoms, treating it with a phenyl compound of general formula IV  see diagramm : EP0057660,P18,F2  in which R10 is the group  see diagramm : EP0057660,P18,F3   see diagramm : EP0057660,P18,F4  or -Se-Br and oxidising it, and then optionally, and in an arbitrary sequence separating the isomers, and/or freeing protected hydroxy groups, and/or esterifying or etherifying free hydroxy groups, and/or esterifying a free carboxyl group and/or saponifying an esterified carboxyl group or converting a carboxyl group into a -CONHR3 group or into a salt with a physiologically acceptable base.
Patent DE-3105571-A1 (DE)
Title: Transmitted-light dark-field condenser
Inventor: FREIBERG KLAUS
IPC: G02B21/10
Filed: 1981-02-16
Abstract: The invention relates to a transmitted-light dark-field condenser for a microscope, which concentrates the light required to use a microscope onto a specimen. In order to be able to facilitate dark-field observations even in the case of high-aperture objectives, the inner aperture of the dark-field condenser must be as large as possible. Consequently, the aperture region on the illumination side becomes small. In the case of objectives having a low aperture, the result is that the aperture region theoretically possible for the dark field is not used, and this leads to losses in light intensity. Accordingly, a transmitted-light dark-field condenser is provided for a microscope, with the aid of which the numerical aperture can optionally be varied likewise without additional focusing of the condenser head. This is achieved by producing divergence in the aperture-determining rays by the optical negative/positive system, and by displacing the central diaphragm along the optical axis. <IMAGE>