baber/WOPTO huggingface dataset:
Patent DE-3017420-A1 (DE)
Inventor: SCHOETTLE KLAUS DIPL ING
IPC: G11B15/29
Filed: 1980-05-07
Abstract: A tape transport apparatus comprising a central drive capstan and take-up and supply reels which are rotatably mounted on supports that ae movable relative to said capstan and can be urged by biasing means toward the capstan to maintain the surface engagement between the periphery of the capstan and the peripheries of the reels. To compensate for the mass moment of inertia of the movable supports and the tape reels mounted thereon, one or more counterweighting means are provided which are movably connected to the supports in such a way that the mass inertias cancel each other out.
Patent DE-3021835-A1 (DE)
Title: Multicylinder piston engine for vehicle - has two opposed cylinders in each of groups separated by clutch
Inventor: KRUEGER HERMANN DR ING
IPC: F02D17/02
Filed: 1980-06-11
Abstract: The multicylinder piston engine is particularly for motor vehicles. A clutch engages at an exact angular position between two parts of a crankshaft brought into use in succession, each part serving some of the cylinders. The engine (1) is of the horizontally-opposed type, four-stroke and with four cylinders. There are two opposed cylinders in each of the groups (2,3) into which it is divided. The two parts of the crankshaft can only be engaged together after each has performed a whole number of revolutions.
Patent DE-3023298-A1 (DE)
Title: Paper drying drum - has insulating mass at end flange zone to prevent over-drying at paper web edges
Inventor: SCHIEL CHRISTIAN
IPC: D21F5/02
Filed: 1980-06-21
Abstract: The insulating mass is applied as a layer on the inner surface of the steam-heated paper drying drum, at the end zone where the drum mantle meets the end flange. The insulating layer can extend into the cylindrical section of the drum flange and/or mantle. The layer is applied in a layer of 0.5-5.0 mm thickness, and is secured by adhesive or vulcanising. The pref. insulating material is a paste for application by spreading, which can be hardened. The drum design prevents overheating and uneven drying of the paper web at the edges, so that the paper quality and character is consistent across the paper web width.
Patent DE-3026703-A1 (DE)
Title: Anti:reflection coating for transparent material, esp. optical glass - includes layer of zirconium di:oxide contg. tantalum oxide stabiliser
IPC: G02B1/115
Filed: 1980-07-15
Abstract: The coating consists of several layers with a thickness of L/2 or L/4, where L is the wavelength of the light. The layers have a high or a low refractive index (RI), and consist of single materials or mixts. The material used for the layers with high RI consists of a ternary mixt. (I) formed on the substrate by vacuum vapour deposition. Mixt. (I) consists of a known oxide, e.g. min. 95wt.% ZrO2, contg. max. 5% of a stabiliser. Mixt. (I) pref. contains ZrO2 with max. 5% Ta2O5 and has an RI of 2-2.5, esp. 2.05. The transparent substrate pref. has an RI of 1.52-1.68. Used esp. to form an antireflection coating for light of wavelength 400-600 nm on optical glass by vacuum vapour deposition without difficulty so the layers have a constant thickness.
Patent DE-3033360-A1 (DE)
Title: Triple rail guide for extending drawers - has sufficiently reinforced front end of middle rail to withstand heavy strain but without using extra thickness
Inventor: FULTERER MANFRED
IPC: A47B88/493
Filed: 1980-09-04
Abstract: The drawer guide includes three rails (1,7,11) with the first C-section rail (1) attached to the inside of the carcase, the second (7) supporting the drawer and the third S-section middle rail (11) set between these two. The front end (30) of the upper part of the middle rail (11) lies in front of the runner (20) set on the lower vertical flange (13). The middle horizontal flange (16) and the lower part of the upper vertical flange (12) of the centre rail are cut out above the runner (20) to form a peripherally closed recess (21) while to restrict the extension of the rail (7) supporting the drawer (6) a detachable stop (22) is mounted on the lower horizontal flange (15) of the centre rail (11) near the front runner (20). The front end of the centre rail is now reinforced so that without increasing the thickness of the material substantially higher stresses can be accommodated without deformation.
Patent DE-3035040-A1 (DE)
Title: Artificial brickwork prodn. using perforated bricks - and thin-layer mortar applied on a passage between perforations and margins with flat sponge
Inventor: GIRG FRIEDRICH
IPC: E04G21/20
Filed: 1980-09-17
Abstract: In brickwork prodn. by superimposing a thin mortar layer on highly perforated artificial bricks or blocks, opt. of light- or aerated concrete, the mortar is applied on the stone or block side bearing the perforation openings, on the passages between the perforations, and the margin. The mortar pref. contains a hydraulic or porous binder, aggregate, water, a water-soluble hydro-colloid and opt. resin binder and/or fibres. The equipment (claimed) contains a sheet-like sponge for pressing the thin mortar layer on the passages and margin of the bricks or blocks. The sponge is pref. made of foamed rubber, polyurethane, polyamide, plasticised PVC, viscose, polystyrene, or natural sponge. The brickwork is used in buildings or building units. Material loss is prevented. The mortar is easily absorbed and released by the sponge and adheres well to bricks and blocks and can reach compressive strength at least 10 N/sq.mm. after 28 days.
Patent DE-3038107-A1 (DE)
Title: Non-contact oil slick sensing - by measuring fluorescence excited by ultraviolet light beam
Inventor: KECK ROLAND DR
IPC: G01N21/64
Filed: 1980-10-09
Abstract: Non-contact qualitative and quantitative determn. of oil on the surface of water is based on directing an UV light beam on the surface to excite the fluorescence of a possible gp. of oil and on a photoelectric sensor for the light from the thereby created sec. source of light. The reflected light, which has to pass through a filter to block the UV light, and the radiation due to the fluorescence are received by a photoelectric receiver. This traces even minute oil slicks. The appts. is easy to install, even in places of difficult access. Other disturbing factors can be readily excluded.
Patent DE-3040441-A1 (DE)
Title: Copper foil for printed circuit boards - comprises copper layer, tin layer and vanadium-contg. zinc layer
Inventor: NAKATSUGAWA HIROSHI
IPC: H05K3/38
Filed: 1980-10-27
Abstract: A Cu foil comprises a Cu layer, a Sn layer formed on the Cu layer and a vanadium-contg. Zn layer formed on the Sn layer. Blown spots are prevented from forming on a printed circuit board and adhesion of Cu foil to a resin board is improved. A Sn-plating bath contains 100 g/l sodium stannate and 10 g/l sodium hydroxide. The temp. of the Sn-plating bath is 65 deg.C. The roughened surface of a Cu foil is plated with Sn in the plating bath at a current density of 1 A/cu.dm for 3 seconds. A Zn-plating bath contains 24 g/l zinc oxalate, 85 g/l sodium hydroxide and 0.5 g/l ammonium metavanadate. The Sn-plated layer of the Cu foil is plated with V-contg. Zn in the plating bath at a current density of 3.3 A/cu.dm for 5 seconds.
Patent DE-3041503-A1 (DE)
Title: Trailer discharge station with laterally tippable platform - has tractor platform raised and laterally moved as tractor remains coupled
Inventor: WICENEC GOTTFRIED DIPL ING
IPC: B65G67/42
Filed: 1980-11-04
Abstract: The mechanism is intended for laterally tipping at least one trailer to discharge material therefrom into a chute (9) or the like while the trailer remains coupled (5a) to the towing vehicle (5). It comprises a base frame (7) with a laterally tippable trailer platform and a separate platform (17) for the tractor which, during the tipping operation, is raised and laterally moved while remaining horizontal. The platform may be raised by trunnion-mounted hydraulic cylinder actuators (19) and linked to the frame (7) via swivel arms (18) such that the lift motion causes the platform to move sideways towards the chute.
Patent DE-3041628-A1 (DE)
Title: Shunt-wound DC motor energy recuperation system - allowing partial battery recharging, e.g. for vehicle electric drive
Inventor: OHLMANN REMIGIUS
IPC: B60L7/12
Filed: 1980-11-05
Abstract: The energy recuperation system allows the magnetic flux stored in the shunt winding of the motor to be converted back into electrical energy using resistance switching. The obtained electrical energy is pref. fed back to the battery which supplies the DC motor. Pref. the lamella disc (21) cooperates with a rotating switch (23) so that each lamella is coupled to a resistance, to cause flux variations in the shunt winding with resulting self-induction. A high EMF is obtained when the shunt winding has a large number of winding turns. The energy recuperation system can be used for an electrically driven vehicle.
Patent DE-3101732-A1 (DE)
Title: Centralised lubrication distributor
Inventor: REBS ALEXANDER DIPL ING
IPC: F16N7/38
Filed: 1981-01-21
Abstract: A description is given of a centralised lubrication distributor, in particular for use in grease supply systems, in which the advantages of the progressive system are combined with the advantages of the two-line system without the problems with switching over associated with the two-line system. To achieve this, an external control device is assigned exclusively to a working space of one cylinder space. The centralised lubrication distributor operates in such a way that the lubricating cycle in each case extends only as far as the cylinder to the working space of which the external control device is exclusively assigned. If a control pulse is transmitted to this working space via the control device, the cycle begins again.
Patent DE-3101958-A1 (DE)
Title: Magnetic-inductive flowmeter
Inventor: HOFMANN FRIEDRICH DIPL ING
IPC: G01F1/60
Filed: 1981-01-22
Abstract: An energy converter (10), which is connected to the supply connections of the preamplifier (9), is connected to the excitation current line (4) in order to supply energy to the preamplifier (9) of a magnetic-inductive flowmeter whose magnetic coils (3) are excited by an alternating current or by a switched direct current. Transformers, electrooptic transducers, electrothermal transducers or converter circuits are possible types of energy converter. Energy stores are used for smoothing in the case of pulsating energy conversion. <IMAGE>
Patent DE-3116475-A1 (DE)
Title: Piston for an internal combustion engine
Inventor: NAKANO HIDEAKI
IPC: F02F3/22
Filed: 1981-04-25
Abstract: In a piston for an internal combustion engine, a crown (1) of the piston has an upper part (1a) and a lower part or ring carrier (1b), which are made from different metals and are welded together. The two metals are selected so that they have the same coefficient of thermal expansion, but the metal of the upper part (1a) of the piston crown (1) has a low thermal conductivity, whereas the ring carrier (1b) has a very high thermal conductivity. A cooling chamber (6), which is defined on the one hand by the upper part (1a) of the piston crown (1) and on the other by the ring carrier (1b), is formed in the piston. <IMAGE>
Patent DE-3118933-A1 (DE)
Title: Device for regulating the initial speed for motor-vehicle auxiliary units
Inventor: WYCHNANEK RAINER DIPL ING
IPC: G05D13/04
Filed: 1981-05-13
Abstract: The invention relates to a device for regulating the speed of auxiliary units, having a gear mechanism (10) which comprises a gear pump (14) and a geared motor (15). The gear pump (14) has two gear-pump chambers (17, 18) which deliver a hydraulic flow to the geared-motor chamber (19) of the geared motor (15). With the aid of a control valve (16), one of the gear-pump chambers (17) can be short-circuited via a short-circuit line (22). The control valve (16) operates in dependence on pressure or speed and shuts off one gear-pump chamber (17) in the event of a predetermined maximum speed of the drive motor. <IMAGE>
Patent DE-3120823-A1 (DE)
Title: Device for lifting and moving flat workpieces, especially planks
Inventor: LEWECKE JUN ERNST
IPC: B65G47/91
Filed: 1981-05-26
Abstract: The device has a multiplicity of suction units (1), which hold the planks under a vacuum, and each one of which has a suction device (2) with a channel (5) which is connected to it and is connected to an air pipe (6). A suction nozzle (4) which is inserted into the channel (5) used for blowing and sucking and is connected by its lower end to the suction device (2) has a control bore (14) with a cross section which gradually increases from the suction bore (3) of the suction device upwards to the sucking channel (5). A ball (15) which can be moved vertically in the vertical region of the sucking and blowing channel (5) and of the control bore (14) has a diameter which is smaller than the smallest cross section of the control bore (14), and is automatically controlled, in dependence on the proportion of secondary air (volume flow) arriving at the suction device (2) into a suction position in which it floats vertically in the control bore (14) of the suction nozzle (4) and into a closed position which is provided in the upper end region of the sucking and blowing channel (5) and, in dependence on the stream of blown air, into the lowest blowing position which is supported by an abutment (17) and releases the suction bore (3) of the suction device. The suction device (2) is composed of two types of rubber which have different degrees of hardness and are melted together to form a single unit. <IMAGE>
Patent DE-3122114-A1 (DE)
Title: Sealing arrangement for a screw mechanism
Inventor: ANDOH SHIGENORI
IPC: F16L27/08
Filed: 1981-06-04
Abstract: A description is given of a sealing arrangement for a screw mechanism having a hollow screw which is mounted within the screw housing. An oil conduit projects with a small clearance into the bore of the hollow screw from the rear end of the housing. Helical turns are formed along the surface of the oil conduit and/or along the inner wall of the end of the hollow screw and, at high screw speeds, air which seals off the oil is taken along by these turns. In conjunction with compressed-air sealing arrangements, stable support for the screw at very high speeds, entry of oil into the interior of the housing and avoidance of leakage losses is achieved.
Patent DE-3123232-A1 (DE)
Title: "Process for fabricating a pn-junction in an n-type semiconductor of the group II-VI"
Inventor: NISHIZAWA JUN-ICHI
IPC: H01L21/40
Filed: 1981-06-11
Abstract: A process for fabricating a pn-junction in an n-type semiconductor material of the group II-VI is described which starts from a crystal grown from the liquid phase employing the temperature difference method. The pn-junction is formed by diffusion in the crystal of a p-type impurity material, e.g. Au, it being possible to effect doping by diffusion or alloying in a noble-gas atmosphere. The impurities diffused in have a high diffusion rate, so that the evaporation of the substrate crystal, e.g. consisting of ZnSe, can be suppressed. The Se atoms have a rate of evaporation which is lower than the diffusion rate of Au, as a result of which the formation of the pn-junction becomes possible.
Patent DE-3125627-A1 (DE)
Title: Safety and directional valve
Inventor: NAU WALTER DIPL ING
IPC: F16K1/10
Filed: 1981-06-30
Abstract: Directional valves according to the invention have not only a pressure connection piece and an equipment connection piece but also vent openings in the valve housing to provide a safety function. In a first embodiment, a valve element is provided which, in an adjustable manner, either closes the passage of the valve under spring loading or, in a defined position, opens it, at the same time closing the vent opening. In a second embodiment, a first valve element is provided which, in an adjustable manner, either closes the passage of the valve in a defined position or opens the latter, and a second coaxial valve element serves, under spring loading, for the closure of the vent openings independently of the position of the first valve element, opening them in the event of an excess pressure. <IMAGE>
Patent DE-3127024-A1 (DE)
Inventor: REMENYI KARL DIPL ING
IPC: B61D27/00
Filed: 1981-07-09
Abstract: 1. Circuit for a single-duct air-conditioning installation of a passenger compartment coach with at least one central air-conditioning device (L), covering the basic heat requirement, for the flow temperature of the heating medium and with a central control device (SLa) and discrete supplementary heaters (N1, N2 ... Nn) for individual setting of the compartment temperature in each compartment, which in each case is controlled as a function of a set value generator S1 ... Sn, provided in each compartment via one control device for each (SA1, SA2 ... SAn), the heater coil (HR) of the central air-conditioning device being cut in and out intermittently by switching means as a function of a command variable for the flow temperature formed in the central control device from the particular duty cycle of the supplementary heaters (N1, N2 ... Nn) of the compartments, characterised by the following features : a. A current transformer (I) in the supply line to the bus bar of the supplementary heaters (N1, N2 ... Nn), b. A multipole change-over switch (U) in the connecting lines between each control device (SA1, SA2, ... SAn) and the associated regulating devices (R1, R2, ... Rn) for the compartment temperature, c. A remotely actuated selector switch (W), the selectable switching contacts of which are in each case connected to one single-throw contact each of the change-over switch (U), in each case one supplementary heater being energisable in turn in cyclical sequence, d. A test pulse generator (P), which emits at certain time intervals pulses for the actuation of the change-over switch (U) and for one passage of the selector switch (W), and one terminal of which generator is connected to the root of the selector switch (W), e. A logic and evaluation element (V) with a comparison device, in which the current value measured in the current transformer (I) in each case is compared in cyclical sequence with a nominal current value of the supplementary heaters stored in the comparison device and, in the event of a noticeable deviation of the measured value from the nominal current value, an error signal is given, which comparison device is in connection with the current transformer (I) and the test pulse generator (P) as well as with the drive mechanism of the selector switch (W), f. One remotely actuated switch (SS1, SS2, ... SSn) each in the connecting line between the control devices (SA1, SA2, ... SAn) for the supplementary heaters and the central control device (SLa), which switches are opened when an error signal is announced in the comparison device.
Patent DE-3129967-A1 (DE)
Title: Light-emitting semiconductor component
Inventor: SPAETH WERNER DIPL PHYS
IPC: H01L27/15
Filed: 1981-07-29
Abstract: The invention relates to a light-emitting semiconductor component which, in particular, consists of a plurality of monolithic light-emitting diodes which are situated close together in a semiconductor body (1). To prevent unwanted emission of light (18) between adjacent light-emitting diodes, a silicon layer (10) is additionally applied in the zone above an insulating layer (6). <IMAGE>
Patent DE-3130564-A1 (DE)
Title: Container for storing small, valuable articles
Inventor: HENSCHKE SIEGFRIED
IPC: B65D85/00
Filed: 1981-08-01
Abstract: The invention relates to a container for storing small, valuable articles, such as semiprecious or precious stones, other minerals, pieces of precious metal or other collectable small items. According to Figure 1, the container has the form of a geometric body and consists at least partially of transparent walls. It is filled with insert bodies, whose dimensions correspond to a regular space grid of the interior of the container. The insert bodies are either fillers, preferably made of transparent material, or valuable articles. <IMAGE>
Patent DE-3132151-A1 (DE)
Title: Process and mould core for demoulding, from gypsum-core moulds, ceramic castings produced by the clay-casting process
Inventor: GEBHART HUBERT
IPC: B28B7/12
Filed: 1981-08-14
Abstract: The invention relates to a process for demoulding, from gypsum-core moulds, ceramic castings produced by the clay-casting process, which process is characterised in that, before the production of the gypsum-core mould, at least one air-permeable flexible tube, preferably a textile tube, which is closed at its immersion end is embedded in the gypsum-mould core and, after the hardening of the cast ceramic casting in the gypsum-core mould and after removal of the outer mould parts for demoulding the casting, compressed air of approximately 5 to 10 atmospheres above atmospheric pressure is forced, by means of a compressed-air gun or through a coupling connection to a compressed-air line, for the duration of approximately 10 to 15 seconds, into the opening, present on the mould core, of the end of the flexible tube. The invention also relates to a mould core for carrying out the process. <IMAGE>
Patent DE-3133943-A1 (DE)
Title: Process for preserving foods
Inventor: HALBRITTER FRANZ
IPC: A23P10/28
Filed: 1981-08-27
Abstract: A process for preserving foods with the use of ethyl alcohol comprises, during packaging of the food to be preserved, mixing the ethyl alcohol with a carrier substance to give a solid to gel-like mixture and then adding it to the food, the carrier substance used being, for example, stearic acid or calcium acetate.
Patent DE-3134794-A1 (DE)
Title: Brake calliper for disc brakes, in particular those of rail vehicles
Inventor: BARTLECHNER MANFRED
IPC: B61H15/00
Filed: 1981-09-02
Abstract: The brake calliper for disc brakes, in particular those of rail vehicles, has a connecting rod arrangement (10) which comprises two levers (11, 12) pivoted on the brake levers (1, 2) near to the brake shoes (5). The levers (11, 12) extend away from the brake disc (7) and are attached pivotably, directly or indirectly, to one another at their two ends (16). Extending between the two levers (11, 12) is a connecting rod (17) parallel to the axis (8) of the brake disc (7), which connecting rod may be fitted with a conventional wear adjustment device for the adjustment of its length. The brake calliper permits high leverage ratios (b : a), although the connecting rod (17) is arranged outside the region of the brake disc (17) and is subjected only to tensile forces, not to bending moments.   <IMAGE>