baber/WOPTO huggingface dataset:
Patent DE-2853137-A1 (DE)
Title: SLR camera with inbuilt motor drives - uses two separate motors for film wind, shutter cocking aperture setting and mirror pivoting
Inventor: YAGI MICHIO
IPC: G03B17/00
Filed: 1978-12-08
Abstract: A s.l.r. camera incorporates two motors (7, 8) which drive gears (3) for film transport (1), for shutter cocking (4) for mirror operation (5) and aperture setting (6). This arrangement enables motors of reduced power to be used. The winding motor can be small enough to be housed in the take-up spool. Transmission mechanism requirements are reduced.
Patent DE-2903159-A1 (DE)
Title: Motor driven medical instrument with piercing needles - has needle carrier reciprocated by eccentric drive mounted on motor shaft
Inventor: KIRCHNER GEORG
IPC: A61M37/00
Filed: 1979-01-27
Abstract: The medical instrument with a set of needles which are used to pierce the skin of the patient, has a sleeve containing a slider with the head of the needle carrier at one end. The slider is reciprocated by a motor driven spindle at right angles to the direction of movement. The motor is enclosed by a housing which forms a handle. The drive spindle carries an eccentric collar with a projecting lug which engages a slot in the slider, which reciprocates the slider as the spindle rotates. Behind the slider is a return spring. The end of the slider carries an extension which projects from the end of the sleeve to act as a position indicator.
Patent DE-2904322-A1 (DE)
Title: Telephone call system time delay switch - has two springs controlling switching wheel and stop wheel with ratchet arm
Inventor: ZIELKE ALFRED
IPC: H01H13/24
Filed: 1979-02-05
Abstract: The time delay switch, for emergency telephone call systems, has switching contacts which are closed when the switch is operated and which are held closed for a limited time after closure. At the rear are the terminals, and underneath is a swinging arms which after operation is held down by a spring (12) at one side. This is operated by a toothed switching wheel (16) and a sto wheel (17) and a ratchet arm (25). These form a dead centre mechanism, combined with a second spring n26) anchored at one end to the frame f the switch and secured at the other end to the ratchet arm. This controls the return action, the teeth of the wheels having different formations (21, 22, 23).
Patent DE-2908623-A1 (DE)
Title: Heated car rear mirror - with central and peripheral electrodes for resistance layer to provide uniform current density
Inventor: BERGMANN MICHAEL ING GRAD
IPC: B60R1/06
Filed: 1979-03-06
Abstract: Mirror consists of a hollow streamlined casing in which a silvered glass disc is retained by a spring. The rear of the glass disc is covered by an insulating layer, pref. epoxy resin or silicone rubber, which has been coated by a resistance layer. The pref. material for the resistance layer is a mixture of carbon and plastics, applied as a paste by screen printing between two electrodes. One electrode is arranged in the centre and the other on the disc periphery. This provides heating and ensures a uniform current density across the resistance layer, thus providing good visibility in all weather conditions.
Patent DE-2917064-A1 (DE)
Title: Reducing formaldehyde evolution from aminoplast foams - by treating foam surface with formaldehyde binding agent esp. urea
Inventor: DIEM HANS DIPL CHEM DR
IPC: C08J9/36
Filed: 1979-04-27
Abstract: Formaldehyde evolution from aminoplast foams is reduced by treating the finished foam surface with a non-volatile HCHO-bonding agent (I). (I) is pref. an aq. urea soln. or a salt of a S acid esp. an aq. mixt. of urea, NH3, ammonium sulphite and a water contg. or drawing agent. In an example, a urea-HCHO soln. prepd. from urea-HCHO resin soln. urea and water, was beaten with Na dibutylnaphthalene sulphonate, resorcinol, phosphoric acid and water were beaten into to form a foam which was moulded into test pieces.
Patent DE-2917574-A1 (DE)
Title: Gas and liquid mixture centrifugal pump - has gaps at wheel side chambers for low pressure gradient preventing gas leakage
Inventor: KOSMOWSKI INGO PROF DR ING
IPC: F04D29/16
Filed: 1979-04-30
Abstract: The centrifugal pump is for the delivery of fluid and gas mixtures with a high gas content, and is of the single or double flow type. Either large rough surfaces, radial ribs (6, 7) or blades are positioned on the housing wall in the area of the wheel side chambers and there are smooth outer surfaces on the boss disc (1) and cover disc (3) of the running wheel. Due to the thus formed gaps in the wheel side chambers, the pressure gradient in the latter caused by the rotating fluid-gas ring is small. Gas from the pump housing (4) does not penetrate the wheel side chambers.
Patent DE-2923366-A1 (DE)
Title: AF amplifier with response control - has signal from amplifier controlling relative gain over frequency ranges
Inventor: DODSON GEORGE B
IPC: H03G9/02
Filed: 1979-06-08
Abstract: The audio frequency power amplifier includes a variable gain circuit responding to a reaction signal arising from the power amplifier so as to modify the gain of the system in one range of frequency w.r.t. that in another. This reaction signal from the power amplifier is coupled to the gain control circuit so as to modify the relative gain. This prevents an audible difference in the amplifier response to different spectral components in the range of controlled frequencies. The coupling may be an active equalisation circuit, or may comprise a variable resistor or light source illuminating a photosensitive resistor.
Patent DE-2924587-A1 (DE)
Title: Built-in door case renovation sheathing - is held by profile pieces fastened to case, pref. with bent ends
Inventor: KORTE KURT
IPC: E06B1/34
Filed: 1979-06-19
Abstract: The system is used during modernisation of old buildings. Provision is made for cladding and sheathing a door case firmly built into masonry, or similar lining, with wood, metal or other materials. Here the sheathing media are retained in place by profile pieces attached to the case or lining. They pref.have two or more shanks at right angles to each other, with stem pieces fitted vertically on them, with ends running out in protruding plug-in angle pieces. These can form sealing lips on the door fitting side. The dimensions of passageway openings are only very slightly diminished.
Patent DE-2928819-A1 (DE)
Title: Vehicle remote control system using multiple aerials - includes phase equaliser system with demodulators connected to monitoring and control units
Inventor: NEUHAUS ALBERT ING GRAD
IPC: B61L3/22
Filed: 1979-07-17
Abstract: The remote control system for a vehicle using three aerials, includes amplifiers for the aerials, with the amplifiers for the front and rear aerials interconnected to a phase equaliser and each followed by a frequency selective threshold circuit and demodulator. The third aerial is connected by an amplifier to two other phase equalisers, and all three equalisers are connected to a monitoring unit which passes signals corresponding to signals received at marking points along to route to the vehicle control system. The demodulators are connected to the vehicle control system. Fault signals are issued from the monitoring unit when signals are received from only one of the first two phase equalisers which occurs when there is a fault at one of the first two aerials. The phase equaliser system uses a system of AND gates and a NOR gate to provide the fault signals.
Patent DE-2929004-A1 (DE)
Title: Domestic central heating using heat pump - uses cavities in outside walls and under roof with central collector duct and pump
Inventor: SCHLAPPIG WOLFGANG
IPC: F24D3/18
Filed: 1979-07-18
Abstract: The central heating system for a house uses a heat pump which extracts heat from warmed air which is circulated through the cavity (5) between the inner layer (2) and outer layer (1) of a double walled construction for the outside walls. Heated air is discharged into the bottom of the cavity and is then collected at the highest point (7) under the sloping roof and extracted by a central vertical duct (8) for discharge at the bottom. At the lower collection point is a connection (9) for the input of a circulating pump (12) followed by an evaporator (15). The condenser (18) of the heat pump is used as a heat exchanger for water circulated through distributors (22) for the rooms above, or for a hot water supply. The wall cavities are also lined with an insulating layer each side. A further cavity (6) under the roof communicates with the central collector duct.
Patent DE-2931587-A1 (DE)
Title: Dust and noxious gas control in mine and tunnel blasting - by raising humidity to increase effectiveness of alkaline earth chloride powder
Inventor: LEWER HANS
IPC: E21F5/20
Filed: 1979-08-03
Abstract: In the control of the dust and noxious gas in blasting in mining and tunnelling operations with slight atmos.humidity, using cartridges filled with solid, finely-divided alkaline earth chlorides and wetting agents, the relative humidity is increased to min. 80% in the air at the site and in the adjacent 30-60 m. Thisis carried out by introducing a mist of water under the roof or injecting water into the ventilation line of a separately ventilated operation, 1-2 min. before blasting. Raising the relative humidity makes it possible to use these cartridges under normally dry conditions, since the hygroscopic salt is more effective in removing noxious gases and water helps to settle the dust.
Patent DE-2932064-A1 (DE)
Title: Heat resistant non-flammable impermeable coated textile prodn. - by extruding or casting plastics film on heat resistant substrate, rolling and heat treatment
Inventor: JENNER JOSEF
IPC: D06Q1/10
Filed: 1979-08-07
Abstract: Prodn. of a heat-resistant, nonflammable coated textile prod., which is impermeable to gas and liq., involves producing a plastics film and applying this to a continuous web of heat-resistant substrate immediately after prodn., then passing through a pair of rollers and subjecting to thermal treatment. Substrates of any mesh width can be given a flawless and pore-free coating without detriment to their flexibility.
Patent DE-2933970-A1 (DE)
Title: Vehicle for containers with liq. industrial waste - has hooks to hold containers on deck and crane for loading and unloading
Inventor: EDELHOFF GUSTAV DIETER ING GRA
IPC: B60P1/54
Filed: 1979-08-22
Abstract: The vehicle (1) is intended for transporting refuse containers, particularly with industrial liquid and paste-like waste. The chassis carries a load deck with container positions arranged in two longitudinal rows. Each container has L-section vertical corner posts extending below the bottom to form feet, and a bottom frame with pairs of cross members. Swivel hooks on the deck can engage the cross members to hold the container in position. A crane can swivel over the deck and carries a yoke with hooks capable of engaging lifting eyes at diagonally opposed top corners of the containers.
Patent DE-2937096-A1 (DE)
Title: Microprocessor controlled home telephone system - has circuits for simultaneous internal and outside calls using hybrid transformer and main switching direct to exchange
Inventor: FAHRENSCHON FRANZ DIPL ING
IPC: H04Q3/62
Filed: 1979-09-13
Abstract: A telephone system for installation in a home allows one main and four extensions to make internal calls or use the exchange line, and is controlled by a microprocessor. An outside call can be made or received on any telephone while others are engaged on an internal call. An internal call cannot be made, however, if an outside call is already in progress. Two busbars are provided, each with its own hybrid transformer and power supply. All telephones are normally on the house busbar but are switched to the exchange busbar while setting up internal calls or for outside calls. If the house power supply fails, the system is bypassed and the main switched direct to the exchange line. The microprocessor detects lifting or replacing a receiver and dial pulses by means of an opto coupler connected in one wire to each telephone.
Patent DE-2952366-A1 (DE)
Title: Soil sampling porous vacuum probe - has pore dia. required for varying water containing soil types determined by associated table
Inventor: KLEY WOLFRAM
IPC: E02D1/06
Filed: 1979-12-24
Abstract: Samples of water-saturated, or unsaturated soil are extracted, on the vacuum principle, by a porous probe for inserting into layers of soil. The dia. of the pores is established according to the type of soil concerned, using an enclosed table. The length of the probe can be dependent on water permeability of the type of soil, in accordance with an associated graph, and main dia. in turn can be dependent on this length. Probes can be connected to intermediate storage units, linked to a collective duct, with forwarding pump and meters, in order to determine various coil parameters, such as grain size, pH value, electric conductivity etc.
Patent DE-3001702-A1 (DE)
Title: Gas-fired boiler assembly - has casing and burner inside pot-section with medium between double walls
Inventor: SCHMITZ GEORG
IPC: F24H1/44
Filed: 1980-01-18
Abstract: The gas-fired boiler has an atmospheric burner at the open underside of a casing enclosing the firebox. There are several pipes for a heat-transfer medium which pass in the transverse direction across the hot combustion gases. They may be inclined at an angle to the gas flow. The casing with the burner is inserted in a open-topped pot-section with double walls, between which a heat-transfer medium is passed. This section encloses the casing and is clear of it for a predetermined distance. The pipes can be connected to the medium between the section walls.
Patent DE-3006738-A1 (DE)
Title: Electrical power generation utilising solar energy - has concentrator system of mirrors and lenses with cooling medium fed through heat exchanger
Inventor: PFEIFFER HEINZ DR RER NAT
IPC: F24S23/74
Filed: 1980-02-22
Abstract: The solar energy power generating system has a concentrator system and absorber unit fitted along the focal line. The absorber contains a forced flow cooling medium for dissipating the heat of the energy converter. The reflection of the cooling agent is effected by using gravity. The cooling agent is a liquid, which is conveyed to a raised heat exchanger (3) in a system of cooling pipes (2). The heat exchanger gives off heat to the environment. The cooling agent is conveyed through the light shadows of the concentrator system.
Patent DE-3007439-A1 (DE)
Title: Line scanner for document - has photoconductive film and common signal electrode with gas chamber coupling discharge chambers to photoconductive film
Inventor: FISCHER DIETER DIPL PHYS DR
IPC: H04N1/028
Filed: 1980-02-28
Abstract: The document line scanner consists of a number of individual elements, each with a discharge chamber. One chamber side is formed by a carrier layer with an electrode, while the opposite side is formed by a photo-conductive film with a signal electrode and a transparent plate. The signal electrode is common for all individual elements. The individual discharge chambers are connected to the surface of the photoconductive film via at least one additional gas chamber. The electrodes of each element of a line can be energised in a three-phase mode for charging the photoconductive film, using a shift register principle. The photoconductive film is provided with an insulating film, carrying an electrode on the surface facing the discharge chamber. The gas chamber is formed by at least one aperture in the insulating film or this electrode.
Patent DE-3007523-A1 (DE)
Title: Radio-station selector and indicator - has display showing station name channel number and frequency which may be stored in memory
Inventor: SIEGLE GERT DIPL PHYS DR
IPC: H03J1/00
Filed: 1980-02-28
Abstract: This radio station selector includes a read/write memory in which station names, frequencies and channel numbers may be entered via a numeric keyboard which includes a single key for selecting characters. The selector is linked to the tuner unit of a radio receiver. A central control unit (6) regulates the data entry and retrieval from a store (7), the radio tuner (2,3,4) and a display (10). The latter shows station name (11), frequency (12) and channel number (13). The control unit (6) is linked to a keyboard (8) via an interface (9).
Patent DE-3009110-A1 (DE)
Title: Vaporisation appts. for medical or cosmetic use - has housing enclosing vapour chamber and electrically-heatable vessel removable after release of sealing arrangement
IPC: A61M11/04
Filed: 1980-03-10
Abstract: A vessel that can be filled with water and electrically-heated is accommodated in a housing enclosing a vapour chamber. There is a vapour outlet tube and a feed-in for medical or cosmetic substances, e.g. herbal leaves and essential oils, so that they reach the vapour chamber. An electrical heating arrangement is provided in the base of the vessel open at the top. A receptor for the effective material used is provided in the vessel above the max. filling level. The vessel can be taken from the housing after release of the sealing arrangement. A plate that can be lowered against spring pressure is located in the housing to serve as a positioning surface for the vessel. In its working position, the plate edge is spring-pressed against a sealing in the housing. In a removing position, the plate can be taken from the housing through a side opening.
Patent DE-3014940-A1 (DE)
Title: Solid-fuel fired plant combustion-air flow regulator - has controller acting on air-flap operating rod at point between facing fulcrums
Inventor: ANSCHUETZ THEO
IPC: F23N3/04
Filed: 1980-04-18
Abstract: The combustion-air flow regulator for solid fuel fired installations is for plant with a control-rod operated air flap. A controlling element acts, directly or indirectly, on this rod (5) which can move between fulcrum-stops either side of it (11,12) under the influence of a spring (13). With the element in the starting position the spring, positioned between one fulcrum (11) and the control element's point of action (4), presses the rod against that fulcrum causing the flap (6) to be held shut. A rod extension (10) beyond that point of action interacts with the second fulcrum (12).
Patent DE-3015591-A1 (DE)
Title: Double exposure mode warning for camera - has selective acoustic and optic warnings linked to motor drive unit oscillator circuits
Inventor: WIESSNER WILLI
IPC: G03B17/42
Filed: 1980-04-23
Abstract: A double exposure warning for a camera with a motor drive unit has two oscillator circuits (8,9) to generate a signal when the double exposure switch is operated. The signal can be an acoustic warning (10) or an optical flasher, the latter being used in churches, courts, lectures etc. for silent operation. The signal serves to prevent the user from taking double exposures through neglecting to switch off the facility at the end of a double exposure or sequence of them. The warning can be included in the motor drive. A unit in the camera body can be moved by a side switch slidable between end positions to allow usage of the double exposure model. A switch (S2) in the motor drive unit is simultaneously operated to activate the warning circuit (6) when the exposure button is pressed. Both oscillators (8,9) consist of a resistor (11,12), a capacitor (13,14) and a NAND gate (15,16) with Schmitt trigger inputs.
Patent DE-3021867-A1 (DE)
Inventor: SCHMITT HERMANN
IPC: H01H71/40
Filed: 1980-06-11
Abstract: An automatic switch of this type includes a switch latch for interrupting current, an overload tripping device and a short-circuit current tripping device for acting on the switch latch to trigger a current interruption. Generally there is also included at least one main contact device having at least one stationary contact and at least one movable contact, a movably supported contact lever attached to the at least one movable contact, and at least one arc quenching device associated with each main contact device. The improvement according to the invention includes a combination of an additional armature system having a magnet coil, a magnet core, a magnet armature and a striker pin. The striker pin is operable for directly striking the at least one movable contact lever and for lifting the at least one movable contact from the at least one stationary contact for a given limited time in the event of short-circuit currents, and the short-circuit current tripping device is in the form of a selective protection tripping device.
Patent DE-3025558-A1 (DE)
Inventor: ROESSERT MICHAEL DR
IPC: C08C19/38
Filed: 1980-07-05
Abstract: 1. Reaction products of a) 50-95 % by weight of at least one diene polymer having an average molecular weight Mn  of from 500 to 10 000 and an OH number of from 0 to 200, b) 5 to 50 % by weight of glycidyl acrylate and/or glycidyl methacrylate and c) 0 to 10 % by weight of aqueous acid, the percentages given above relating to the sum of components a), b) and c) characterized in that the diene polymers a) contain from 1 to 15 % by weight, based on a), of chemically incorporated sulphur.
Patent DE-3028364-A1 (DE)
Inventor: SCHWARZ RUDOLF DR
IPC: C01B33/18
Filed: 1980-07-26
Abstract: 1. A process for the pyrogenic production of silicon dioxide by vaporising one or more volatile silicon compounds from the group of chlorosilanes and organochlorosilanes, mixing with air or oxygen-containing gas, fuel gas and steam and combusting this gas mixture, characterised in that a carbon monoxide-containing gas is used as fuel gas.
Patent DE-3029062-A1 (DE)
IPC: E04F13/04
Filed: 1980-07-31
Abstract: 1. Profiled rod-shaped bearer element (1) for lathwork (3) having at least one profile member which is connectable with or provided with longitudinally staggered retaining members (6) for the lathwork (3) and with, set back in relation to the supporting face of this or these profile members, a profiled part having, staggered in a longitudinal direction, a plurality of housings (15) each intended to accommodate a fixing element (2) of the bearer element (1), the free ends of the retaining members (6) and of the fixing elements (2) extending in opposite directions, characterised in that each fixing element (2) is mounted on the bearer element (1) so as to be displaceable on and in the longitudinal direction of the bearer element (1), the cross-section of the bearer element being substantially U-shaped with outwardly bent-over ends, these latter lying in a common plane and forming two spaced-apart profiled flanges (10, 11) and in that the fixing element (2), at least in the region thereof which is associated with the housing (15), has a screwthread and in that the bearer element (1) is retained between two abutment members (22, 25) of the fixing element, in particular at least one being constructed as a nut.
Patent DE-3029726-A1 (DE)
Title: Post coital contraceptive for enteral or parenteral admin. - contg. racemic norgestrel or levonorgestrel
Inventor: STEINSCHULTE WERNER DR MED
IPC: A61K31/565
Filed: 1980-08-06
Abstract: New post-coital contraceptives for enteral or parenteral admin. contain norgestrel (racemic) or levonorgestrel (D- enantiomer of norgestrel). The new contraceptives avoid the health risks associated with the daily administration of a conventional oral contraceptive, and avoids the side-effects and risks associated with the current post-coital contraceptive method (admin. of 3-5 mg ethynyloestradiol or 30-50 mg diethylstilboestriol for 5 days starting not later than 48 hrs. after intercourse.