baber/WOPTO huggingface dataset:
Patent DE-2734647-A1 (DE)
Title: Bis-(decahydroquinolyl-N-methyl)-imidazolidine thione(s) - are vulcanisation accelerators, corrosion inhibitors, flotation agents, herbicides and insecticides
Inventor: SAFAEV ABIDSCHAN
IPC: C07D401/14
Filed: 1977-08-01
Abstract: The thione cpds. of the formula (I) are novel: (where R2 is H or CH3). (I) are vulcanisation accelerators for natural or synthetic rubbers, corrosion inhibitors for non-ferrous metals, flotation agents in the extraction of non-ferrous metals from waste waters, herbicides and insecticides. They may be prepd. by reacting imidazolidine-2-thione with formaldehyde and R2-substd. decahydroquinolines. A typical prod. is N,N'-bis-(decahydroquinolyl-N-methyl)-imidazolidine-2-thione.
Patent DE-2735624-A1 (DE)
Title: Telephone exchange overvoltage protector - has solder connection between spring element on incoming line and equipment lead which melts with heat from shunt
Inventor: GABLER PETER DIPL ING
IPC: H04M1/74
Filed: 1977-08-06
Abstract: The overvoltage shunt protects external lines connected to equipment in telephone exchanges from accidental contact with mains voltage. A fuse is included to protect the shunt and its surroundings from overheating. A lead (1) connected to the apparatus to be protected has an upturned end which is soldered to the end of a spring (2) connected to the lead-in conductor. The bend of the lead presses down on the shunt. In the event of an overvoltage heating the shunt, heat from the shunt is conducted to the solder connection (3), which melts. The spring moves away from the end of the lead (1) thereby breaking the connection between the lead-in conductor and the apparatus.
Patent DE-2742523-A1 (DE)
Title: Prefabricated reinforced concrete silo wall slab - has thickened end sections, one or both sides, facilitating concrete casting
Inventor: BOLD PETER DIPL ING
IPC: E04H7/28
Filed: 1977-09-21
Abstract: The wall slabs (4", 4") have thickened sections (6) formed onto their ends, on both sides or on one side. They may be applied to cell units (2) made up from four walls (4), with two forming a central nodal point. Only two opposite slabs are thickened on both sides, providing a sufficiently large opening (7) for direct concrete casting. This simplifies casting, with no additional formwork needed on site.
Patent DE-2752210-A1 (DE)
Title: Vertical support plates on wrapping table - provide space frame for producing cube shaped parcel of delicate food product
Inventor: ACKERMANN KARL FRIEDRICH
IPC: B65B11/02
Filed: 1977-11-23
Abstract: A wrapping table (6) which is used to wrap delicate food products, such as soft cake, has a reel (7) which supplies wrapping material. When the cake is placed on the wrapping foil, two vertical blades (3) are placed into slots in the table so that the cake is located in between. The top edge of the two blades are provided with hinged fingers (3a-3d). When the fingers are horizontal, they form a rectangular space frame around which the parcel can be formed without being in contact with the cake inside. The fingers will hinge upwards when the finished parcel is lifted off the table.
Patent DE-2754837-A1 (DE)
Title: U=shaped holder for fastening goggles to any type crash helmet - has forked ends on one arm engaging round helmet edge
IPC: A42B3/22
Filed: 1977-12-09
Abstract: The protective goggles are fastened to the crash helmet by a U-shaped holder (4) which is made of a flexible material wherein one arm is forked with a double-armed clamping lever (6) being mounted in the fork ends. In the clamping position one arm of (14) clamping lever is supported on the edge of the helmet whilst the other arm clamps the hood-shaped part of the helmet firmly between itself and an arm of the holder. A secure fastening between the holder and the helmet is thus ensured even where the helmet has a narrow edge.
Patent DE-2808852-A1 (DE)
Title: Sequential frequency spectrum analysis circuit - comprises superposition switched oscillator, mixer, and switched series of filter elements
Inventor: SCHMIDT HUBERT MARTIN DIPL ING
IPC: G01R23/165
Filed: 1978-03-01
Abstract: A circuit for sequential frequency spectrum analysis passes the spectrum to be analysed to a filter after mixing it with the time-varying output frequency of a superposition oscillator. An amplitude measurement circuit is connected before the filter. It prevents the decay characteristics of the filter from influencing the next measurement in the sequence even with a large dynamic range. The additional circuitry is essentially less than that required for simultaneous frequency analysis. The filter contains series-connected filter circuits connected in stages to the mixer as the oscillator frequency is changed in steps.
Patent DE-2811309-A1 (DE)
Title: Shelving frame with continuously moving shelves - allows easy replacement of shelves without stopping vertical conveyor unit
Inventor: ROETTGER ROBERT
IPC: B65G1/127
Filed: 1978-03-15
Abstract: The shelves(1) of each column(2, 3) in the cupboard are moved vertically by conveyor elements in the form of continuously rotating synchronised chains(4, 5). Cogs (6) protruding beyond the shelves(1) engage in the chain links to draw the shelves along. A support rod associated with a driving gear system controls shelf grippers which can be displaced above and below the two columns so that on the one hand each top shelf can be raised from the upward moving column and set down on the adjoining downward moving column and on the other hand each bottom shelf can be removed from the downwardly moving column and transferred to beneath the adjoining upwardly moving column.
Patent DE-2829290-A1 (DE)
Title: Motor vehicle brake system pressure converter - has piston annular chamber connected by preloaded rubber plate to atmosphere
Inventor: BABLITZKA ADOLF ING GRAD
IPC: F15B21/044
Filed: 1978-07-04
Abstract: The pressure converted for a motor vehicle brake system has a venting differential piston with a seal. The annular space between the piston seals is connected to atmosphere for venting. Entry of water is reliably prevented even if the vehicle is sprayed with dirty water at high pressure. A preloaded rubber plate is placed against the opening facing the atmospheric side. This rubber plate is inserted into seat on the outside surface of the valve housing. It is pressed by means of a rapidly released cover against the opening of the bore (23). Any pressure build up within the annular space is rapidly released through this plate.
Patent DE-2830142-A1 (DE)
Title: Communications system with remote control of outstations - can interrupt sequential transmissions to interrogate one specific outstation
Inventor: GUZMAN-EDERY JORGE DIPL ING
IPC: H04Q9/00
Filed: 1978-07-08
Abstract: A control centre (1) with a transmitter (S) and receiver (E) controls substations (US1, US2...) via a communications link comprising a monitoring channel and a control channel. The substation logic circuitry (L) controls switches (R1, R2...) in the monitoring channel. Normally the switches (R1, R2...) are all closed so that the substations can sequentially send process information to the control centre. A message from the control centre can interrupt the sequence to allow a substation to transmit data. In such cases the logic (L) opens the relevant switch, to prevent substations further down the line from transmitting.
Patent DE-2830551-A1 (DE)
Title: Coupling hose connectors to housing - by single rotatable clamp with one arm acting on each connector
Inventor: ROENNEFARTH KLAUS
IPC: F16L37/56
Filed: 1978-07-12
Abstract: Hose connectors (5, 6) with annular reels (9) are plugged into bores (2, 3) in a housing. The bores are axially parallel and the connectors are held in place by a common rotatable clamp (14) whose surfaces (13) press against the connectors under the action of a spring (17). The arrangement allows a single clamp to secure several connectors and is useful in batteries of pipe connections where space is limited. Useful in compressed air braking systems of motor vehicles.
Patent DE-2831562-A1 (DE)
Inventor: FRICKER PAUL
IPC: B23H7/28
Filed: 1978-07-18
Abstract: With this apparatus, a rotary parallel movement with variable eccentricity can be superimposed on the main eroding movement of the electrode as a function of the main eroding movement. The superimposed electrode movement is process-controlled. Means (121, 124, 125, 126, 127, 131, 132, 201) are available in order to vary the degree of eccentricity. These means continuously change the radius of the rotary parallel movement by their displacement relative to a copying device (202, 220). <IMAGE>
Patent DE-2838352-A1 (DE)
Title: Combustion air humidifier for oil burners - has vessel with completely immersed air supply pipe with filter
Inventor: TILLMANN HEINRICH
IPC: F23L7/00
Filed: 1978-09-02
Abstract: The combustion air humidifier is used in oil burners. The humidifier is compact and readily installed into the burner. The rectangular vessel (2) has an air inlet filter (9) in one side wall. This is connected to the air supply pipe which is held completely within the vessel (2). The air supply pipe has an externally adjusted restrictor valve. The air supply pipe is held below water level. Air is drawn through a pipe above the water level.
Patent DE-2843746-A1 (DE)
Title: Public transport vehicle heating and ventilating equipment - has housing formed by one-piece bowl of synthetic material
Inventor: SCHULZ JOACHIM
IPC: B60H1/00
Filed: 1978-10-06
Abstract: The heating and ventilating equipment is for the driver's cab and passenger space in a public transport vehicle, having an open-bottomed housing with an external fan, and a heat exchanger. The opening of the fan discharge conduit is inclined in relation to the heat exchanger inlet side. The housing is a one-piece bowl of synthetic material with side and end walls, converging from the open bottom face to a base. The upstream end wall has air inlets with unions for the fan, and is at a relatively large acute angle to the bottom face. The opposite side walls have faces protruding inwards forming brackets for the lateral support of the heat exchanger inlet end, and these faces are inclined at an acute angle to the bottom face roughly half that of the upstream wall. At the heat exchanger outlet, the downstream end wall and the bottom face, whose side lengths are roughly equal, form a prismatic chamber containing the air outlets.
Patent DE-2844655-A1 (DE)
Title: Variable magnification camera objective - with displacement of rear lens controlled by cam at rear of front lens mounting
Inventor: STEPHAN HEINZ
IPC: G02B7/10
Filed: 1978-10-13
Abstract: The objective uses at least lenses (L1, L2, L3) which more in conjunction with one another, but by differing amounts, the setting ring (1) for the objective acts as the mounting for the front lens (L1, L2) and has a cam curve (2) at the rear defining the movement of the rear lens (23). The mounting (6) for the rear lens (L3) has a campin (4) contacting this cam curve (2) with a further guide pin (8) at the rear of the mounting (6) fitting behind a shoulder of a frame ring (10) which is screwed to the setting ring (1). The rotation of the latter causes rotation of the first lens (L1, L2) and linear movement of the second lens (L3).
Patent DE-2847197-A1 (DE)
Title: Flame monitor for furnace burner control - signals normally flame presence and absence during operation, while delaying and storing flame signals in out- of-operational state
Inventor: SCHWARZ SIEGFRIED
IPC: F23N5/08
Filed: 1978-10-30
Abstract: The flame monitor has a change-over switching threshold for testing and operating level, using external light storage. In operation the presence or absence of the flame is normally signalled, while outside of operating conditions the signalling is delayed, stored and inverted. Thus the interference switch-off in operational and non-operational flame signalling is carried out within the safety time period via the same signalling lines of the burner control device. Preferably the storage and inversion of the flame signal outside the operating conditions is carried out by resistors (2, 3) in series with the flame detector (1), the resistors being of PTC type. For such signalling the resistors are heated, and the flame signal is delayed and inverted by the first resistor (2). The second resistor (3) is connected to a switch (4), in order to safeguard interference switch-off within the safety time period. The switch may take up the testing and operating level switching via a solid state resistor in series to the second resistor (3). The flame monitor may control a monitoring device without any magnetic relays, using a triac and a resistive network with a photoresistor.
Patent DE-2902443-A1 (DE)
Inventor: DANEFFEL HANSRUEDI
IPC: H01H47/32
Filed: 1979-01-23
Abstract: An AC switch for switching a load circuit (11) has a relay (20) with a relay contact (21) which is to be connected to the load circuit, an electronic circuit arrangement (22), which is provided with a sensor (42), for controlling the relay (20), and a rectifying circuit arrangement (23) for supplying the electronic circuit arrangement (22) and the relay. In order to supply power when the relay contact (21) is open and when it is closed, the input (27, 28) of the rectifying circuit arrangement (23) is connected on the one hand via a resistor (R1) to the connecting terminals for the load circuit (11) and on the other hand to the secondary winding (26) of a current transformer (25) whose primary winding (24) is connected in series with the relay contact (21) and is bridged by two parallel-connected diodes (D1, D2) having opposite forward directions. The impedance of the primary winding (24) of the transformer (25) is at least five times greater than the forward resistance of the diodes (D1, D2) at the maximum load current intensity, as a result of which only a relatively small portion of the load current in each case flows through the primary winding (24) and, because of the current/voltage characteristic of the diodes, the voltage across this winding changes only relatively slightly when the current intensity in the load circuit (11) varies by a factor of more than 10. The transformer (25) can have relatively small dimensions. The switch can be used in the same way as a normal mechanical switch in domestic installations. <IMAGE>
Patent DE-2913717-A1 (DE)
Title: Frequency generator for synchronous or stepping motor - counters to control division ratio of programmable frequency dividers
Inventor: HAACK WOLF-DIETER DR RER NAT
IPC: H02P8/04
Filed: 1979-04-05
Abstract: The frequency generator has the operating frequency obtained from a standard frequency through periodic pulse selections, using programmable frequency dividers. The motor is speeded-up or braked by increasing or reducing the operating frequency in steps, the data inputs of the frequency dividers controlled in parallel by the outputs of respective reversible counters. The counters are clocked by a free-running oscillator and their momentary count values are transmitted in parallel to comparators for comparison with the required frequency division ratio, the difference used to adjust the counter contents. Pref. the output frequency of the frequency dividers can be adjusted by a further modulo-n-counter.
Patent DE-2921578-A1 (DE)
Title: Reciprocating internal combustion engine - has bevel gear drive between individual cylinder cranks and common main shaft
Inventor: HAFNER KLAUS
IPC: F02B75/02
Filed: 1979-05-28
Abstract: The engine has a cylinder block with cylinders arranged in a ring round it. A piston reciprocates in each cylinder. The piston has a connecting rod which joins it to a crank pin on a bevel gear held in the block. The bevel gear meshes with a second bevel gear which is fixed to the output shaft. This gear meshes with the bevel gears of all the cylinders. The shaft runs parallel to the cylinders through the centre of the cylinder block. It carries a valve disc at the top of the block which has ports controlling inlet and exhaust of the cylinders.
Patent DE-2921583-A1 (DE)
Title: Adjustable torque converter guide blades - are rotatable about common axes in pairs to have entries pointing in flow direction
Inventor: FLOEGEL EBERHARD
IPC: F04D29/46
Filed: 1979-05-28
Abstract: The adjustable blade assembly is intended for flow machinery, such as for the stator blades of the turbine section or the guide blades of the pump section of a hydraulic torque converter. It comprises rotatable blades (1) which, for certain operating conditions, are rotated such that their entry sides point in the direction of flow (4). More than one, preferably two such blades are connected to form an assembly (12) which is rotatable about a common axis (11).
Patent DE-2928209-A1 (DE)
Title: Heating pipe radiation shield - is shaped to reflect heat in desired direction and is made of corrugated aluminium sheet
Inventor: SCHNIER ERHARD
IPC: F24D5/08
Filed: 1979-07-12
Abstract: The radiation shield is designed to fit onto a heating pipe, directing the heat to where it is wanted. It is shaped to give the most effective degree of reflection, and can be secured to the pipe (4) with the aid of a hook and spring assembly (3,6). By varying the lengths of the hook and spring assembly it can be adapted to different diameters of pipe. The design affords a simple method of saving energy in a greenhouse etc. The radiation shield (1) is bent into an arc of a circle. It is made from an aluminium sheet and has corrugations (2) formed into it for stiffening.
Patent DE-2934480-A1 (DE)
Title: Di:chloro-azoxybenzene prepn. - by catalytic hydrogenation of chloro-nitrobenzene
Inventor: HERRMANN HANS-JOACHIM DIPL CHE
Filed: 1979-08-25
Abstract: Prepn. of dichloroazoxybenzenes (I) is carried out by hydrogenating chloronitrobenzenes (II) in an alkaline medium at 40-120 deg.C in the presence of a catalyst comprising a noble metal on a BaSO4-contg. support, and stopping the H2 supply when the reaction ceases. The reaction is pref. effected in a 2-phase system in the presence of a water-immiscible organic solvent in which (I) is soluble at elevated temp. but insoluble at room temp., e.g. cyclohexane or n-heptane. The catalyst pref. comprises 0.5-10 wt. % of a Pt-group metal on a support contg. more than 60% BaSO4. The aq. phase is pref. a 16-25% alkali metal hydroxide soln. contg. up to 0.3% of a nonionic or anionic emulsifier. (I) are useful as intermediates in the dyestuffs and plastics industries, e.g. for prodn. of benzidine pigments. The process gives high yields (e.g. 84-94%) using a readily recoverable catalyst (cf.SU273206).
Patent DE-2937020-A1 (DE)
Title: Level setting circuit for wideband transmission system - comprises T network controlled by 4-pole network
Inventor: BAACKMANN DIRK ING GRAD
IPC: H03H7/25
Filed: 1979-09-13
Abstract: The circuit uses a bridged T network with a controlled electronic resistance element, e.g. a pin diode, in each cross arm. A four-pole network has a DC voltage (Uo) applied across one pole pair (1,2) and a setting voltage (U) applied across the other pole pair (3,4). A first pole (1) of the first pair (1,2) is coupled to the corresp. pole (3) of the second pair (3,4) via a resistor (R3) and two series P-I-N diodes (D21,D22). Two further P-I-N diodes (D11,D12) and a series resistor (R4) are connected in a transverse arm of the 4-pole network. These resistors (R3,R4) are each bridged by a series resistor and Zener diode (R6,Z2,R7,Z1) and the T network is coupled across the initial two series P-I-N diodes (D21,D22).
Patent DE-2938419-A1 (DE)
Title: Pulverised coal blowing method into burner - grades into different degrees of fineness for supply to different burners
Inventor: BEELMANN RICHARD
IPC: F23K3/02
Filed: 1979-09-22
Abstract: The appts. blows pulverised coal directly into a furnace burner. The coal is delivered with hot gas or air to a mill, and the mixture which emerges from the mill is graded before entering the burner. The grading operation forms partial currents containing pulverised coal of different degrees of fineness, and these currents are fed to different burners. Seen in the flow direction of the combustion gases in the burner, the coarser-grade mixture can be blown into a burner before the finer-grade one. The degree of fineness of the pulverised coal in the partial currents can be regulated.
Patent DE-2939569-A1 (DE)
Title: Wall or ceiling covering - comprises tubular supports and oblong strips held together by clips
Inventor: SPANGENBERG ROBBERT ERNST
IPC: E04B9/26
Filed: 1979-09-29
Abstract: The do-it-yourself wall or ceiling covering equipment comprises two or more bar-shaped or tubular supports (1), secured by supporting blocks (2) to wall or ceiling. A number of thin oblong strips with edges bent over towards one side are secured by suspension clips snapping over the edges of adjacent ones. The lengthwise axes of the supports inter-sect those of the clip snap portions. Each support can be secured to its block by a stirrup (14) fitting over it and with flanges (15) sliding into openings in the block.
Patent DE-2942295-A1 (DE)
Inventor: BENNING HERBERT
IPC: A61F5/02
Filed: 1979-10-19
Abstract: 1. A dorsal-supporting bandage having a pressure pad of a flat, springy material which in the relaxed state has a curvature facing towards the back of the wearer, characterised in that the pressure pad (2) has a curvature in horizontal cross-section and is so constructed that in the stressed state, it changes into a wavy line in cross-section, which wavy line consists of three curves (7, 8, 7), a central curve (8), which faces away from the back of the wearer, and two curves (7) close thereto on either side which face towards the back of the wearer.
Patent DE-2946877-A1 (DE)
Title: Prefabricated sanitary type room cell installation on substructure - involves application of viscous polyurethane resin layer foaming and hardening under influence of moisture
Inventor: STAUDENMAYER WINFRIED
IPC: E04B1/348
Filed: 1979-11-21
Abstract: Following alignment into a vertical position, a room cell unit, such as shower cubicle or other sanitary room, is fixed on an unfinished floor or other substructure by application of a layer of viscous single-component polyurethane resin, hardening of in moisture between its support surfaces and the substructure. The latter has, or is given, moisture content exceeding that of air, and/or water is initially added to the resin, which then foams and sets hard under the effect of the moisture. Varnishing material, with pref. 1% water mixture, may be used. Cell fixture is quick and simple.
Patent DE-3004610-A1 (DE)
Inventor: VOLKWEIN GERT DIPL CHEM DR
IPC: C07C43/295
Filed: 1980-02-08
Abstract: Process for the preparation of 4-phenoxyphenols of the formula <IMAGE>  I  in which R1 through R5 are hydrogen, halogen or alkyl, by diazotization of amines of the formula    <IMAGE> II  in a hydrochloric acid medium, and boiling in aqueous sulfuric acid at 110 DEG  to 150 DEG  C.
Patent DE-3010334-A1 (DE)
Title: Electrically heated hot-plate with typically three elements - with each element comprising resistance wire in chamber in insulating baseplate, with top plates borne by support rods
Inventor: DEMBSKI ANNI
IPC: H05B3/68
Filed: 1980-03-18
Abstract: The electrical hot-plate may be circular or rectangular in form and is built up from a number of zones each of which may be heated independently. In one design, there is a central disc-shaped plate (7) surrounded by two annular plates (8,9), all carried in a baseplate (10) of insulating material (10). Each heated plate has beneath it a number of concentric chambers (11,12,13) forming the retaining space for electrical resistance heater wires (20,21,22), the chambers being cut into the insulating base-plate. The heated plates are themselves carried by support rods (14,15) with small shoulders near their tops. The resistance wire ends are all connected to terminals, connected in turn to a common switch and heat adjustment control.