baber/WOPTO huggingface dataset:
Patent DE-2928961-A1 (DE)
Title: Holding device for double blade mowing cutters - has swing arms of one bottom mower blade fitted with holding device
Inventor: SCHEFERS WILHELM
IPC: A01D34/17
Filed: 1979-07-18
Abstract: The holding device is for double blade mowing cutters where the two reciprocated cutting blades are elastically supported in a spring loaded fashion on swing arms. The swing arms of one bottom mower blade, which cannot be hinged up, are fitted with a holding device which is arranged with little running-and fitting play over the width of the blade back of the top blade. The free space is approx 2mm and greater than the immersion depth of the coupling head or the rubber metal block of the swing arm above the mushroom head of the bottom blade.
Patent DE-2931485-A1 (DE)
Title: Heat recovery from ground water bore holes - using evaporator of refrigeration circuit with vertical copper cylinder surrounded by plastic heat transfer tube
Inventor: OETJENGERDES RUDOLF
IPC: F24D11/02
Filed: 1979-08-03
Abstract: Heat for use in heating and domestic water is recovered from ground water borehole by means of a heat pump. The evaporator of the pump is sunk into the borehole below the water table. The evaporator consists of a long vertical cylinder made from Cu. Inside, the cylinder has a number of conducting baffles e.g. of Al soldered onto the cylinder. The cylinder has a pipe down the centre which serves as an oil return pipe and has a non-return valve on the end. This allows accumulated oil to be returned to the compressor. The cylinder has a plastic heat exchanger coil surrounding it on the outside. For recovery and utilisation of heat in ground water gives capacity for energy storage, which can be automatically controlled, can be used to store solar energy, can assist in recovery of heat from motor exhausts driving heat pump, can recover heat from waste water, the evaporator is not subject to much corrosion, and the system allows simple removal of oil.
Patent DE-2931909-A1 (DE)
Title: Railway wagon shunting standing step - has bolt sliding in cover plate on stop batten and grating hanger bar
Inventor: STECKEL GERHARD
IPC: B61D23/02
Filed: 1979-08-07
Abstract: A sliding floor (3) at the bottom of a tread-holder hanger bar (1), for a step used in shunting operations on railways wagons, has a stop batten (5) for front limitation of transverse turning bolt (9) for an extensible grating holder, with the bar providing rear limitation. A covering plate (6) providing space for the bolt to slide is fitted to the batten and bar. The grating comprises two side-pieces (17), held apart by spacer bars (12), gripping the floor and plate from outside, and held in the sliding space (8) by a turning bolt (9). The side pieces have a bottom connecting stop piece (11) gripping the floor from below, and arrestable in front and rear positions by a piece (7) on the plate. This a compact and reliable standing plate, easily adjusted for locomotive shunting.
Patent DE-2935360-A1 (DE)
Title: Ethyl-ammonium-nitrate(s) as octane number improvers - in diesel fuels based on ethanol or its derivs.
Inventor: OPPENLAENDER KNUT DIPL CHEM DR
IPC: C10L1/22
Filed: 1979-09-01
Abstract: The basic patent (DE2909565) specified the use of triethylammonium nitrate as a cetane number improver in diesel fuels consisting essentially of ethanol and/or ethylene oxide derivs. The present patent in addition specifies mixts. of triethyl- and diethylammonium nitrates and, if necessary, monoethyl ammonium nitrate for the same purpose. Use of the nitrates and the finished fuel are both claimed. The di- and triethyl derivs. pref. together constitute at least 70wt.% of the mixt. of ethylammonium nitrates, and this mixts. Pref. constitutes 15-25wt.% of the fuel.
Patent DE-2942752-A1 (DE)
Title: IC engine for tractor - has auxiliary fan for cooling air through ejectors to give even flow along length of engine
Inventor: JANSEN WILHELM
IPC: F02B77/13
Filed: 1979-10-23
Abstract: The engine has a sound absorbing enclosure (36,37). Cooling air is drawn in by a fan at the front of the engine. The air enters the side of the enclosure and flows forward to the fan through a chamber (41) round the cylinder head. It is blown back into a chamber (48) along the side of the engine and flows transversely across the cylinders (17). A second fan at the back of the engine draws secondary air through ejector passages (58) along the side of the enclosure. These alternate with main air passages from which they eject air so that it flows evenly along the length of the engine.
Patent DE-2943297-A1 (DE)
Title: Foldable nappy with side adhesive strips - consists of impervious outer layer, absorbent middle layer, and porous inner layer
Inventor: JUNGBAUER LUDWIG
IPC: A61F13/15
Filed: 1979-10-26
Abstract: Nappy consists of an impervious outer layer (1), on which is an absorbet layer (2), covered by a porous inner layer. The side edges of the nappy have adhesive strips (4,5) which are joined at one end (6,7) to the side of the nappy, and, on the part (8,9) not joined to the nappy, have a detachable strip covering the adhesiVe layer. The adhesive strip (4,5) extends symmetrically to the centre line of the nappy running crosswise to the side edges, or parallel to the side edges. The adhesive strip enables the nappy to be folded and fixed in that position.
Patent DE-2944303-A1 (DE)
Title: Snap-action contact self-cleaning switch - has central column unequal length changeover spring for sideways-movement cleaning action at change-over
Inventor: HAMMER HEINZ DIPL ING
IPC: H01H13/12
Filed: 1979-11-02
Abstract: The snap action switch is intended for household equipment where frequent operation can be expected and also where contacts may get dirty. The snap action has a plunger carrying contacts operated by unequal length springs so that a sideways contact cleaning changeover results. The switch housing (3) carries two pairs of fixed contacts (1,2) above and below the changeover contacts (10) on the spring (7.8) loaded carrier (4). When the central plunger (5), releases under base coil spring (6) pressure, its upward movement tensions the springs (7,8), connecting it to the central switch bar (4). The tensioned springs (7,8) snap the switch bar over to the second set of contacts (1) moving the bar sideways in the process to clean the contacts (1,10) upon impact. The difference in angles of the two springs (7,8) to the points (9) where they are connected to the switch bar (4) exceeds 20 per cent.
Patent DE-2944731-A1 (DE)
Title: Deep boring machine for geothermal energy or ores - has drill head with peripheral row of endless tracks digging into earth
Inventor: KARL HELMUT
IPC: E21B4/00
Filed: 1979-11-06
Abstract: The machine includes a slide, which travels down a deep hole together with the drill head. The machine pref. builds a tube wall round the bored hole. Special bricks are fed down the hole and are used to form the tube wall. The bricks form channels employed to hold cables or pipes supplying electricity or coolants to the machine. The slides consist of endless tracks located on the periphery of a drill head and digging downwards into the earth like a mole. The machine can be used to drill very deep holes to reach an earth temp. of 600 deg.C. used to generate energy or for winning of ores.
Patent DE-2945527-A1 (DE)
Title: Disconnector with contact arm raised and rotated - employs mechanism containing drive piston and specified linkage
Inventor: ALBRIGHT ROY H
IPC: H01H31/28
Filed: 1979-11-10
Abstract: The disconnector has a contact arm(138, 140) connecting a distant spring-arm forked contact to the point to which the contact arm pivots. The arm is operated by a mechanism that not only raises and lowers it but also rotates it about its axis to produce a clean break with the fork's arms. The mechanism is designed such that the problems caused by changes in the length of the angled rotating arm (120), which pivots the arm up and rotates it about its axis, in the longitudinal direction of the mechanism are avoided. This is accomplished by a specified configuration whereby the angled rotating arm is coupled to another arm(118) pivoted to a short arm(116) fixed to the contact arm.
Patent DE-2946780-A1 (DE)
Title: Stair lift for invalid chair - is actuated by rotation of screwed rod which drives block up inclined track
Inventor: GRASS GERD ING GRAD
IPC: B66B9/08
Filed: 1979-11-20
Abstract: The device for raising a chair or platform up a flight of stairs as an aid to the physically handicapped consists of a block (23) with rollers which run on a rail (16). The rail extends from the bottom of the lower banister post (18) to the top of the upper banister (20). The block has an internal screw thread which engages a screwed rod (25) which is attached to upper and lower guides (22) (28), so that the ends travel along the upper (12) and lower rails (14). By rotating a knob (37) on the end of the screwed rod (35) the block is made to travel up the middle rail (16).
Patent DE-2951957-A1 (DE)
Inventor: SCHATZ HERMANN
IPC: C08L61/34
Filed: 1979-12-22
Abstract: 1. A process for the production of co-condensates of phenol and melamine with formaldehyde in aqueous solution, wherein a) formaldehyde and phenol are condensed in a molar ratio of 4:1 to 10:1 in a conventional manner in aqueous solution at an initial pH of at least 7.5 until the condensate just exhibits unlimited dilutability with water (or limited dilutability with 5 % strength magnesium sulfate solution), and b) the aqueous condensate thus obtained is condensed with at least 0.3 mole of melamine per mole of formaldehyde at a pH of 7.5 to 10 until it exhibits limited dilutability with water, with the proviso that the amount of formaldehyde, based on the sum of the molar amounts of melamine and phenol, is at least 1.5.
Patent DE-2952596-A1 (DE)
Title: IC engine carburettor with variable venturi - uses axially compressible element contained in contoured recess in carburettor housing
Inventor: BERGNER ARNDT DIPL ING
IPC: F02M9/10
Filed: 1979-12-28
Abstract: The i.c. engine carburettor includes a venturi of variable shape and cross-sectional flow area. At least part of the venturi consists of a readily deformable solid element (1) made of resilient material with a through-passage (14). To reduce the cross-section at the narrowest point (23) of the passage, the element can be compressed in the axial direction e.g. by an axially slidable bush (13) moved via a rack (16) and pinion (17), while its outward expansion is limited by the internal contour (18-20) of the housing (2) in which the element is contained. The element is pref. located via annual projections (7,12) in the housing (2) and on the bush engaging corresp. recesses (5,10) around the passage (14) at bottom and top of the element.
Patent DE-2952716-A1 (DE)
Title: Motor vehicle window raising mechanism - has operating unit moving along track with curved section linking parallel ends
Inventor: BRUSASCO ENZO
IPC: E05F11/40
Filed: 1979-12-29
Abstract: There is an elongated, largely undeformable activating element (12) with two transversely flexible end sections in the system for raising a pane in a motor vehicle, or other window. A guideway (11), connectable to a carrier (2) for the pane (4), combines with this to form a sliding track, with two straight end sections (14, 15) and a middle connecting section (16). A drive unit (27) is coupled so as to move the activating element along the guideway, the element's ends being linked to points on the pane near the straight end sections.
Patent DE-3007499-A1 (DE)
Title: Continuous prodn. of roller blind slats - where thermosetting resin mix is moulded in chain of tools fitting closely together
Inventor: GRAU HANS
IPC: B27N5/00
Filed: 1980-02-28
Abstract: Moulded roller blind slat sections are produced continuously from thermosetting binder and filler (e.g. wood wool), using a heated die made up from plate tools which move together from the feed end to the outlet end; they then separate from the moulded section and come together again at the feed end. The profile of the material consists of two sides and connecting cross web (i.e. inverted channel section), the die has two longitudinal walls, the lower is made up of base plates forming the inside faces of the section, the top wall is made up from U-section cover plates to form the outer faces of the cross web and sides and which start the process offset from each other. The cross web part of each top tool projects at its front end, where it leaves an apparently thicker passage for the material mix, but the back end of each next top tool is correspondingly smaller in section, so that the adjacent ends overlap together. Improvement over DE-AS 27 38 716 as material cannot exude between the ends of the adjacent tools where the continuous chain of tools changes its direction.
Patent DE-3010297-A1 (DE)
Title: Self-cleaning flue heat exchanger system - moves annular brush down at regular, short intervals using strong electromagnet
Inventor: SINGER JOHANN
IPC: F28D21/00
Filed: 1980-03-18
Abstract: The heat exchanger system has cold air from the outside heated by passing it down the outside of the flue for the exhaust gases, before supplying it to the combustion chamber, the wall of the exhaust gas flue acting as a heat exchange surface. The interior of the flue is cleaned periodically via an annular brush its up and down movement controlled via a strong electromagnet. This automatic cleaning at short intervals is used to maintain good heat exchange between the incoming air and the exhaust gases.
Patent DE-3012465-A1 (DE)
Title: Automatic garage door operating mechanism - has door holding end switches incorporated in drive unit and released upon disconnection of drive
Inventor: SUZUKI MITSUO
IPC: E05F15/668
Filed: 1980-03-31
Abstract: The mechanism has an electric motor drive system coupled to an operating element (60,61) which operates a door holding switch (30,31. The coupling between the drive system and the operating element (60,61) has elements (56,58) for disengaging the coupling to allow the operating element (60,61) to move into the release position for the door holding switch (30,31). Pref. the operating element (60,61) comprises a disc rotated by a spring into the release position for the switch (30,31) when the coupling with the drive system is released. Pref. the switch (30,31) is released via a lever (32,32) acted on by a cam surface of the operating element (60,61). The switches are incorporated with the housing of the door operating mechanism so that they are out of reach of children etc., but with their setting readily adjusted when required.
Patent DE-3013712-A1 (DE)
Title: Thyristor rectifier ignition circuit - eliminates idle period between switching command to control occurrence of first ignition pulse
Inventor: LANGLOTZ HELMUT DIPL ING
IPC: H02M1/08
Filed: 1980-04-10
Abstract: The process uses ignition pulses (UZ) which are formed cyclically in the control unit by comparison of a periodical auxiliary function (U-H) with a switching threshold (U-S). The idle time between the instant, at which the switching-on command is transmitted to the control unit, and the appearance of the first ignition pulse is eliminated. This is attained by stopping the cyclic generation of the ignition pulse during the operational break interval of the rectifier. Then all ignition pulse generators (K) are energised into a ready state. The generators are energised beyond the inverter limit position. During the operational break interval the amplitude of the periodical auxiliary function may be reduced below the switching threshold. Alternately, the switching threshold may be raised above the amplitude of the periodical auxiliary function.
Patent DE-3014910-A1 (DE)
Title: Ignition point timer for IC engine - has accelerator pedal dependent timing stage for amplifier allocated to gear change transmission
Inventor: STREIF FRANZ
IPC: B60W30/18
Filed: 1980-04-18
Abstract: The ignition point timer is intended for electronic control of automatic motor vehicle transmission, consisting of a hydrodynamic torque converter with bridging clutch and a multi- speed mechanical gear box. On the drive side of the automatic transmission and on the turbine runner wheel of the torque converter are mounted speed generators. The frequency dependent control signals of each generator are converted in respective frequency analog converter and supplied to a signal amplifier. The amplifier outputs are fitted with relays for the control of the gear-change elements, or the bridging clutch. A timing stage is started in dependence on the accelerator pedal position and transmits a low signal level to amplifiers associated to the speed-change stages. A logic circuit controls the bridging clutch during operation of the timing stage, consisting of a combination of an OR-stage and an AND-stage.
Patent DE-3015489-A1 (DE)
Inventor: FISCHER HERMANN
IPC: B41F21/00
Filed: 1980-04-23
Abstract: In the high-pile deliverer (2) of a sheet-fed rotary printing machine, the axle (9) of a chain guiding element (12) which deflects the sheet transporting chain (11) is simultaneously used as the axle for the back pressure cylinder of a perfecting unit (15, 16). Owing to the dual function of the axle (9), one axle can be saved. <IMAGE>
Patent DE-3018202-A1 (DE)
Title: Earthmoving machine adaptable planing shield - has replaceable sets of parts for conversion from straight to U=shape
Inventor: REMBARZ HANS-DIETER
IPC: E02F3/815
Filed: 1980-05-13
Abstract: The straight shield plate is converted into a U-shaped one by pref. sets of components for interchangeable attachment to the shield plate sides. The interchangeable components make up shield sides protruding beyond the plane of the shield. There can be homologous sets of components for the left and right side. Each pref. comprises a sidewall, front wall, cover plate and corner blade, all detachably interconnected, and with contours adapted both to each other and to the shield. The sidewall can contain holes, for shield fixture, and front and/or sidewall can have holes for externally accessible blade attachment.
Patent DE-3018828-A1 (DE)
Title: Massaging device having flexible support sheet for patient - with concave rolls travelling beneath to produce moving undulations
Inventor: NIESSEN KARL OTTO
IPC: A61H15/00
Filed: 1980-05-14
Abstract: A massaging appliance comprises a frame, rectangular in plan with support feet, risers and horizontal longitudinal rails to which a flexible mat is attached, for the patient to lie on. Beneath this flexible mat rolls having a concave longitudinal section are moved by a chain drive or the like to produce moving undulations. The rolls may be of nylon or a setting plastics material. The flexible mat may be stretched in the longitudinal direction only.
Patent DE-3023158-A1 (DE)
Inventor: HEINZLE AUGUST
IPC: G06K1/02
Filed: 1980-06-20
Abstract: The punching apparatus consists of a punching block (1), in which the punching pins are set in reciprocal motion by a drive, and of a feed device for the card material or strip material. In order to keep the drive device in constant movement, a separation between the drive device and the punching block (1) or the feed device is proposed. For this purpose, there is provided as a drive device for the actuating element in the punching block (1) and/or for the paper feed a respective displaceably guided slide (8) supported via a roller (4) on an eccentric disc (6) of the drive device. Each slide (8) consists, in relation to its longitudinal extension, of at least two portions (8' and 8'') succeeding one another at a distance, a filling piece (13) being insertable according to predeterminable control cycles into the space remaining between the portions (8' and 8'') of the slide (8). This filling piece (13) is displaceable together with the two portions of the slide (8), at least in the insertion position, so that the movement of one portion (8') is thereby transmitted to the other portion (8'') and therefore to the punching block (1). <IMAGE>
Patent DE-3025682-A1 (DE)
Inventor: DOETSCH WERNER DIPL CHEM DR RE
IPC: C01B15/047
Filed: 1980-07-07
Abstract: Disclosed is a continuous process for the production of bivalent metal peroxides, comprising the steps of introducing into an intensive mixing apparatus a solid, anhydrous or hydrated oxide or hydroxide of a bivalent metal; simultaneously introducing into the intensive mixing apparatus a solution of hydrogen peroxide, whereby the solid bivalent metal compound and the peroxide are intensively mixed and react to produce a reaction mixture containing bivalent metal peroxide; transporting the reaction mixture directly to a rapid dryer; and rapidly drying the reaction mixture to produce the bivalent metal peroxide in solid form.
Patent DE-3029395-A1 (DE)
Title: Coin release system for prepayment telephone - with low inertia moving parts, to limit operating current drawn from telephone system
Inventor: MAX LUDWIG
IPC: H04M17/02
Filed: 1980-08-01
Abstract: The coin system comprises a slot (12) into which individual coins (16,17) can be entered (a). The coins are held by an arresting pin (2) which passes across the slot. This pin is part of the armature (1) of a solenoid system attached, together with the coin slot (12), to a mounting plate (18) forming part of the telephone instrument structure. The windings (3) are inside a flux return path (5) with a ring magnet (4) between them. Energising the appropriate coil moves the armature and coupled pin to one or other of the two stable positions. The mass of the system is small therefore the acceleration energy drawn from the system is also small. The very lightness of the system makes it vulnerable to abuse. An asymmetrically weighted lever section (13,14,15) can be added. Normally the heavy end (13) holds the system clear of the pin end. A blow directed at the front of the coin box to release a coin also accelerates the lever system, and the light end (14) moves in line with the pin (2) and blocks its movement due to the blow.
Patent DE-3029941-A1 (DE)
Inventor: KREIS PHILIPP
IPC: B60H1/22
Filed: 1980-08-07
Abstract: In a room heater for small rooms, particularly for caravans, which is fired with gaseous or gasified liquid fuel, an outlet connection (10) for connection to a waste gas flue (11) is provided at the end of a downwardly directed part (8, 9) of a combustion gas duct in the form of a heat exchanger. This outlet connection (10) has a flue connection opening (30) whose centre line (31) rises in the direction of flow, so that a waste gas flue joined thereto assumes an upwardly directed position. <IMAGE>
Patent DE-3037942-A1 (DE)
Title: Hinge bearing ring enclosing bolt - comprises two mutually turning rings loosely linked by snap connector (NL 3.5.82)
Inventor: JANCLAES ERNST
IPC: E05D11/00
Filed: 1980-10-08
Abstract: At least one bearing ring, sited between hinge sockets, encloses the bolt in a hinge joint. The ring (8) is made up from two rings (10,11) held together loosely but undetachably in the axial direction by a snap connection (13,14), turning easily on each other. One of these in each case fits against the adjacent hinge socket, and one at least is made from wear-resistant plastics with low friction coefficient. There can be an inner ring, and an outer ring overlapping this with a socket-shaped attachment. The outer one may be permanently joined to the adjacent hinge half.