baber/WOPTO huggingface dataset:
Patent DE-2837014-A1 (DE)
Title: Device measuring distance between two movable objects - has sender and receiver coupled with objects and bar carrying ultrasonic oscillations
Inventor: BETTIN HUBERTUS
IPC: G01D5/48
Filed: 1978-08-24
Abstract: The measurement is made by a sender generating ultrasonic oscillations, and by a receiver registering their propagation time. The propagaton time is measured and serves as the measure for the distance between the objects. The sender is coupled with one object, and the receiver with the other object, so that they carry out a movement proportional to the relative movement of the objects. A bar carrying the ultrasonic oscillations has magnetostrictive properties, and is so arranged, that oscillations are applied to it by the sender, and registered by the receiver.
Patent DE-2842329-A1 (DE)
Title: Attenuator for AF signals - has pulsed switch passing digitised audio input signals to D=A converter
Inventor: PICHLER HEINRICH DR ING
IPC: H04H60/04
Filed: 1978-09-28
Abstract: The attenuator has a switch (SCH) controlled by a pulse generator (LOG) and passing the digitised input audio signals to a d-a converter (DAU). The pulse generator produces pulses of variable pulse duty factor and with a repetition frequency that is at least equal to the frequency of the digital signals. The d-a converter's output is connected to a low pass filter (TP). The attenuator is mainly for mixing consoles and output stages in digital audio equipment.
Patent DE-2848353-A1 (DE)
Title: AM radio receiver - has control circuit controlling broadband input, phase and amplitude amplifiers
Inventor: LOEHN KLAUS DIPL PHYS DR
IPC: H03D1/22
Filed: 1978-11-08
Abstract: The a.m. radio receiver has a regulating device behind the amplifier in the amplitude channel. The device passes a control signal to the amplifiers in both the phase and amplitude channels as well as to the input amplifier (3). The regulating device consists of a rectifier feeding a potentiometer via an RC circuit. The potentiometer provides a control for the phase amplifier (10) and the broadband input amplifier. One end terminal of the potentiometer provides the control voltage for the amplitude amplifier. A differential amplifier is located in front of the amplitude amplifier (11) and its two inputs are connected to the outputs of the two low-pass filters (8, 9) in the amplitude and phase channels.
Patent DE-2849881-A1 (DE)
Title: Paper fibre slurry feed control in bleaching plants - with variable delivery pumps regulated from central supply point
Inventor: ANDERSSON NILS-ERIC DIPL ING
IPC: F04B49/00
Filed: 1978-11-17
Abstract: In a bleaching process for a slurry papermaking material, the mass of fibres is pumped through a number of columns in which it is treated with chemicals. There is an individual pump provided for each column and the power for all of them is supplied from a common source. The speed of revolution of all the pumps is thus controlled from a central point. The pumps are driven by squirrel cage asynchronous motors fed by a common frequency regulator. Pref. the mass of slurry is pumped through filters the speed through which is controlled in common. Diluting and rinsing water is fed to the columns by at least one common pump, the speed of revolution of which is regulated. Washing water is fed to the filters by at least one similarly regulated pump. Arrangement makes unnecessary the wastage of energy accompanying the use of constant feed pumps and choke valves which often have a cooling circuit requiring additional energy. The entire flow of paper fibres can be controlled more easily. Both starting up and operation are simplified. Individual pumps can be changed easily and the revolution control drive can be bridges and the squirrel cage motors connected to the 50 cycle a.c. mains directly.
Patent DE-2856123-A1 (DE)
Title: Dialysis membrane comprising thin walled hollow cellulose fibre - extruded from cuprammonium soln. of cellulose, used in haemodialysis
Inventor: BANDEL WERNER DR
IPC: D01D5/24
Filed: 1978-12-23
Abstract: A dialysis membrane is in the form of a hollow fibre of regenerated cellulose with a wall thickness of 0.5-8 pref. 1-5 mu m. Pref. the wall of the hollow fibre is formed of a single layer. The hollow fibresa re spun by extruding a cuprammonium soln. of cellulose into an aq. caustic soda soln. through the annular slit of a hollow fibre die immersed in the aq. caustic soda soln. A liq. which will shape the empty space is extruded through the inner passage of the die. The ratio of the speed of drawing of the holow fibre over the first drawing roller to the speed of extrusion of the cuprammonium soln. of cellulose from the annular slit is 1-1.05. The direction the fibre follows from the die to the first drawing roller forms an acute angle, pref. 15-70 degrees, with the axis of the die apertures. Subsequent treatment of the fibre is as usual. The membrane is used partic. in hemodialysis; it can also be used for reverse osmosis. These thin walled hollow fibres give a very efficient dialysis membrane.
Patent DE-2856843-A1 (DE)
Title: Water well operating system - supplies oxygen enriched water alternately to two wells to prepare ground water
Inventor: GROBA EGON PROF DR
IPC: E03B3/08
Filed: 1978-12-30
Abstract: The water well operating system draws water out of a first well during a first phase, enriches it with oxygen, and delivers it to a second well, so as to precipitate materials in solution from the ground water round about. The supply or enriched water to the second well is then halted, and in a second phase enriched water is drawn off for domestic consumption. The functions of the two wells are periodically interchanged, part of the water drawn from the second well during the second phase being enriched with oxygen and delivered to the first one until the water round the latter has been prepared, water being then drawn from it for consumption.
Patent DE-2908329-A1 (DE)
Title: Plastics moulded brake fluid reservoir - has locating ridge surrounding fluid duct for securing to master cylinder
Inventor: HEINTZ HARALD M DIPL ING
IPC: B60T11/26
Filed: 1979-03-03
Abstract: A plastics moulded brake fluid reservoir for fitting to the cast metal master brake cylinder has one or two fluid ducts moulded to the underside to locate in the filling holes in the cylinder. At least one of the ducts is surrounded by a moulded ridge (13) which serves to cover the tolerance in the duct spacing and the closer tolerance in the cylinder hole spacing. The ducts are sealed on the insides of the cylinder holes by O rings and are located by profiled ridges (7) on the ducts and grooves in the holes. Additional sealing lips can be provided on the ducts. No special fittings are required to attach the reservoir.
Patent DE-2911903-A1 (DE)
Title: Dewatering of bulk material, esp. granulated slag - where water sprayed into molten slag is reclaimed via sepg tanks and recycled
Inventor: MUELLER-SPAETH ERICH
IPC: C21B3/08
Filed: 1979-03-27
Abstract: Water is sprayed into molten slag to make slag sand, which is fed with the water into a tank contg. a sieve bucket wheel removing the granulate to a conveyor belt. The tank has an overflow, via which the hot water, contg. fine particles of granulate, flows into a reservoir with a pump feeding the water into the top of a cooling tower. From the cooling tower, the water flows into a cold water tank used for the direct supply of nozzles spraying the water into the molten slag. In the pref. plant, the cold water tank has an inlet for fresh water, and a bell which prevents the fine particles of granulate in the water from blocking the water circulation system.
Patent DE-2914732-A1 (DE)
Title: Optimisation of control circuit subject to stochastic interference - using proportional controller having gain changed by random load and/or rated value fluctuations
IPC: G05B13/02
Filed: 1979-04-11
Abstract: The structureal optimisation process is for an electrical control circuit subject to random interference. The circuit is pref. a speed-connected electric drive. When random or random and determined load and/or rated values changes occur, a proportional-controller is used for optimum adjustment between control pat h and controller in the case of multiple loop control circuits. Its proportional-gain satisfies a specified expression linking mechanical time constant of the drive system. the control pat h gain and t he t otal time constant of the speed control loop.
Patent DE-2917040-A1 (DE)
Title: Air bubble bath mat - finely perforated by roller application to soft foil on needle bed
Inventor: FRENKEL WALTER
IPC: B26F1/24
Filed: 1979-04-27
Abstract: The earlier Patent No. 234027 described a method of producing perforations in air bubble bath mats by a heat radiation pretreatment of the soft foil, followed by a vacuum deep drawing operation. This does not produce as fine a hole diameter as is desirable from the medical aspects, and it requires a blower of too great a capacity. It is suggested therefore to omit the heattreatment and to perforate the cold solf foil by laying it on a needle bed and applying a roller or brush against it to achieve holes fine enough to be normally closed and only to open under air pressure. Such a mat has the desired medicinal effect on the patient.
Patent DE-2919979-A1 (DE)
Title: Three point motor vehicle safety belt - has automatic rewinding mechanism fixed to body wall below seat
Inventor: BLUEGGEL ERWIN
IPC: B60R22/02
Filed: 1979-05-15
Abstract: The three-point automatic safety belt (10) is for use in motor vehicles. One end is anchored to the top part of the body wall. The other end leads to the drum of the automatic rewinding mechanism (11), which is also fixed to the wall, below the seat. The design combines proper support for the shoulder of the wearer with comfort.
Patent DE-2920467-A1 (DE)
Title: Measurement insert clamp device for electrical thermometers - has corrugated tube acting as sealing and clamp element
Inventor: SCHUHL HERBERT ING GRAD
IPC: G01D11/30
Filed: 1979-05-21
Abstract: A clamping device for measurement inserts is esp. for electrical thermometers with measurement insert tubes e.g. for resistance and thermoelement thermometers. It is a simple device universally applicable with connecting heads and plugs and with large numbers of contacts. It is resistant to vibration and enables application of large clamping forces with reliable sealing of the tubes. The sealing tube element acts also as the sprung clamp element and is in the form of a longitudinally elastically expandable corrugated tube. The tube expansion is sufficient to compensate measurement point positional variations and the stiffness sufficient to enable application of the clamping force. The corrugated tube has a rotational intermediate element connecting it to the contact head with longitudinal security.
Patent DE-2921940-A1 (DE)
Title: Heat pump for central heating - uses filter above door to supply used warm air to heat pump at top of staircase well
Inventor: KODRON RUDOLF S DIPL ING
IPC: F24D11/02
Filed: 1979-05-30
Abstract: The central heating system for a building, using a heat pump, has a sound reducing filter built into the wall, under the ceiling above each door, communicating with the staircase well. Warm air from the rooms passes through the filter to the heat pump which is at the top of the staircase well. The air is then sufficiently cool to be circulated in the cellar if required. The filter consists of a stack of perforated or slotted plates, with the openings offset from each other, so that the air travels along a zig-zag path before reaching the staircase well. The heat extracted is used as an auxiliary source for the hot water system.
Patent DE-2926459-A1 (DE)
Title: Door sill bar position fixing device - has right angled piece in groove on piece lying against soffit
Inventor: FREY HARRY
IPC: E06B1/60
Filed: 1979-06-30
Abstract: A device on threshold bars for doors, esp. with wooden doorcases, enables the bar to be fixed at any desired point in the doorway. One (1) of two main constituent, mutually adjustable, parts fits against the door soffit (4), and has provision for holding the threshold bar (11). The other part (2) is movable on a guideway (12) on the first, aligned horizontally at right angles to the bar. This part, itself at right angles to the first' fits against the wall surface (14) adjoining the soffit. The guideway can be a dovetail groove. This permits precise mounting, even with no door case present, and ensures that the correct position is maintained during subsequent work.
Patent DE-2927127-A1 (DE)
Title: Offset printing press - has moisture application roller gear driven from plate cylinder and bearing against doctor roller
Inventor: KNEUSELS WERNER
IPC: B41F7/26
Filed: 1979-07-05
Abstract: The printing press is particularly of the offset type, with a mechanism applying a moistening film to a plate cylinder and having a ductor immersed in the moistening agent and a non-slip application roller running against the cylinder. (9,10) to the plate cylinder (2), and bears directly against the ductor roller (3), which is driven at a slower peripheral speed than it. Application and ductor rollers can be so driven that the difference between their peripheral speeds increases with increasing speed.
Patent DE-2940291-A1 (DE)
Title: Pneumatically ventilated silo operation - using air pressure source supplying two air flows with volume selected to produce adjustable predetermined pressure
Inventor: KLUGER WOLFGANG DANIEL HELMUT
IPC: B65G69/06
Filed: 1979-10-04
Abstract: The operating method for a pneumatically ventilated silo for fine grained goods uses an air pressure source which supplies a first flow of air to the silo floor and/or the outflow area of the silo and a second air flow directed to the pneumatic conveyor installation connected to the silo. The volume of the first air flow is selected dependent on the air pressure present in the supply pipe in such a way that when a predetermined air pressure value is exceeded the first air flow is reduced and the second air flow is increased.
Patent DE-2943791-A1 (DE)
Title: Electron irradiation device for webs - protected by curved housing covering drum opposite electron beam window
Inventor: GLUCHICH VASILIJ ANDREEVIC
IPC: H01J37/30
Filed: 1979-10-30
Abstract: A device to irradiate webs of textile, polymer or paper material by electrons continuously consists of an electron source, incorporated inside a hollow drum which is revolved by a pinion engaged with a toothed rim on its periphery. The drum consists of two solid ends which are joined by a perforated shell ring carrying a pattern. The web is urged by two rollers against the segment of the drum with the shell ring facing the window for the emerging electron beam. The outside of this segment is covered and shielded by a curved radiation protection chamber. This creates a simple protection against radiation hazards by an attachment which takes up little space.
Patent DE-2951268-A1 (DE)
Title: Combustion engine exhaust heat utilisation - has evaporator in ranking cycle to drive turbine whose output is coupled to engine output
Inventor: WOHLERT JOERG
IPC: F02G5/02
Filed: 1979-12-17
Abstract: The arrangement is intended for utilising the waste heat from a combustion engine (1) or gas turbine, which may be stationary or drive a motor vehicle. The exhaust passes through an evaporator (3) contained in a Rankine cycle (3,7,6,5,4) which uses a refrigerant as the medium to drive a turbine,(7). This turbine is coupled (fluid drive 9, planet gear 10) to the output shaft (11) of the engine so that more power is available at the final output (12). Further heat, derived from the condenser (6) in the Rankine cycle, may be usefully employed.
Patent DE-2951562-A1 (DE)
Title: Hair dryer for standing or hand-held use - has swivel arm with handle acting as support leg when necessary
IPC: A45D20/12
Filed: 1979-12-21
Abstract: The handle (16) of the hair dryer which stems from the housing is set in a right-angled position at the free end (15) of a jib arm (14) which runs next to the housing (1). The hair dryer can now be used both as a hand-held dryer and a stand dryer wherein in the latter case the handle forms one stand leg and the corresponding housing edge the other. The handle pref. extends transversely to the housing beneath same so that when held in the hand the housing rests on the lower arm relieving the strain on the wrist. The dryer can be adapted to various useful positions if the jib arm can be displaced and locked relative to the housing and the handle can be displaced and locked relative to the jib arm.
Patent DE-2953259-A1 (DE)
Title: Alarm system for protected area - has fibre=optic transmission link between sensors and central alarm control system
Inventor: COLES GRAHAM FREDERICK
IPC: G08B29/12
Filed: 1979-08-28
Abstract: A secured room, such as a bank vault, has a range of alarm sensor modules coupled to a remote alarm control system within a protected area. The link between the sensors and the control unit is provided by two fibre optic bundles, that have the fibres freely mixed. When an alarm sensor is activated an oscillator circuit outputs a specific frequency and amplitude signal that is transmitted via an LED and one fibre optic link to a photo diode. A pair of comparators checks to determine the level relative to threshold values. If it is outside these values an alarm is triggered. Any disturbing light effect is felt by both fibre optic links and a second photo transistor is used to provide identification. A number of sensors may be coupled to the central facility.
Patent DE-3011467-A1 (DE)
Title: 2-Alkoxyalkyl-N-haloacetyl aniline derivs. - useful as herbicides for pre- or post-emergent application
Inventor: CHUPP JOHN PAUL
IPC: A01N37/22
Filed: 1980-03-25
Abstract: Anilides of formula (I) are new: (where X = halo. R and R1 = H, 1-10C alkyl or 1-10C alkoxy-methyl opt. substd. by 1 or 2 1-4C alkyl. R2 and R3 = H or 1-4C alkyl or alkoxy. R4 = H, 1-10C alkyl, alkenyl or phenyl opt. substd. by 1-5C alkyl or alkoxy, halo or NO2. n = 0-4). They are prepd. by reacting the corresp. 2-(CR2R3Hal) cpd. with R4OH. (I) are useful as herbicides for pre- or post-emergence application, partic. for selective weed control in soya, sugar beet, wheat, rice or sorghum. The pref. pre-emergence application is 1.12-5.6 kg/hectare.
Patent DE-3013477-A1 (DE)
Title: Washing of workpieces after surface treatment - by immersion in row of water tanks, together with exposure to row of water spraying nozzles
Inventor: FISCHER GUENTER
IPC: C25D21/08
Filed: 1980-04-08
Abstract: The workpieces are treated in a bath, and are then successively dipped in a row of rinsing tanks which are each filled with water, so the carry-over of soln. from the bath becomes progressively more dilute. Each rinsing tank is provided with overhead spraying nozzles fed with water from the next tank entered by the workpieces. Fresh rinsing water is only fed into spraying nozzles located above the final rinsing tank; and the water flows in counter-current to the workpieces, In the pref. plant, each tank is provided with a feeder using compressed air to drive water through spraying nozzles located over the preceding tank. Used for example in electroplating of workpieces with Cr. The counter-current flow of water can be exactly counterblanaced; and the most contaminated water, ie.. in the first rinsing tank, can be fed by an overflow pipe to a reclaiming plant, e.g. to reclaim Cr or other chemicals.
Patent DE-3013586-A1 (DE)
Title: Reciprocating chain drive for bicycle - has extended length spring or rubber driven by crank lever
Inventor: DICHTL PETER PAUL
IPC: B62M1/24
Filed: 1980-04-09
Abstract: The reciprocating chain drive for a bicycle has a chain (2) passing over the sprocket wheel (8) and driven by a crank lever (23). A rubber or spring tensioner (28) is fitted to the end of the chain and is taken over a roller (32) and along to a remote securing point (25) under the crossbar. This enables a long length of rubber to be used with less reaction drag. The roller is fitted to the side of the rear luggage carrier (18). The longer rubber ensures that for the fixed amount of extension it requires less effort than with a shorter rubber. The under frame mounting on the crossbar does not interfere with the operation of the machine.
Patent DE-3020290-A1 (DE)
Title: Long wearing earthworking machine rotary cutting block - has cutting edge sloping back from forward protruding striker tip
Inventor: STEPHENSON EARLE W
IPC: E02F3/76
Filed: 1980-05-28
Abstract: The earthworking machine has a carrier arm and a working end bent out from it. It has a cutting edge, formed by a block with hard-metal blades, long enough to overlap the arm end and make an L-shaped tool. The cutting block has a striker tip protruding forward across the cutting edge. From this point the edge is inclined rearwards in relation to the direction of rotation for the outer ends of the block. The inclined part may have protective coatings of highly wear-resistant material.
Patent DE-3023513-A1 (DE)
Title: Assembly contg. electric contact bolt - has spring array, transverse to sliding direction of bolt, forming resilient abutment between bolt and housing
Inventor: MUTSCHLER ERICH
IPC: H01R13/24
Filed: 1980-06-24
Abstract: The contact assembly is intended partic. for current supply to a hatch door of a motor vehicle, carrying a number of electric appliances, such as a window demister, a rear window wiper etc. The contact bolt of the assembly is axially slidable in a housing and spring loaded in the sliding direction. A resilient abutment between the contact bolt (10) and the housing (13) is provided by a spring arrangement (42,11) transverse to the sliding direction. Pref. between the spring arrangement and the housing or the contact bolt, is provided a punctiform or linear abutment by cams (43) or bending edges. A spring may be embedded in a housing wall for stressing the contact bolt. Alternately, a spring element formed by a spring strap (42), cut out from the housing wall is used. The contact bolts may carry itself a spring (11). Instead of a bolt a flat contact strip, stamped from sheet metal, may be used.
Patent DE-3024141-A1 (DE)
Title: Lampholder for fluorescent tubes - has slide-on end caps to cover connectors and fit flush around tube and to base unit
Inventor: ARNOLD RUDOLF
IPC: F21S8/00
Filed: 1980-06-27
Abstract: The lampholder is for a fluorescent tube which has end connectors. The holder has end caps (14,15) which slide onto and anchor onto the end sections (12,13) of the base housing (10). Each end cap (14,15) comprises a flat end wall (19) with appropriate cut outs or holes for mounting on/off switches and starters. The top section (16) of each end cap (14,15) is a shaped shround with front collar (22,22a) which fits closely over the tube (17,17a). The shrounded part (16) has a diameter which enables it to flush mount onto the base unit (11c,12,13) where they meet. The two end caps (14,15) conveniently cover and hide the electrical end connections to the fluorescent tube (17). The end caps also use elasticised clip fastenings to the base holder unit (11), not only does the top shroud match the width of the base but the end sections (19) also do so that the complete unit is flush fitting.