baber/WOPTO huggingface dataset:
Patent DE-3913185-A1 (DE)
Title: Current-pulse thyristor triggering
Inventor: SONNTAGBAUER ERNST DIPL ING
IPC: H01H9/54
Filed: 1989-04-21
Abstract: The invention relates to an arrangement for production of the triggering voltage for thyristors, two thyristors in each case being connected in reverse in parallel and being arranged in parallel with the making switching contact of a load changeover switch. Two current transformers are arranged between the making switching contact and a common output line, in the secondary windings of which current transformers the rising edge of the connection current induces a voltage pulse in each case. This voltage pulse is fed to the triggering inputs of the thyristors, the conductive state of the thyristors occurring before the metallic contact of the contact pieces of the making switching contact. By means of the invention it is possible to connect the switching contacts without any arc and without blackening of the oil.
Patent DE-3915722-A1 (DE)
Title: Drill for prodn. of large hole - has sliding tapering bolt forming self-locking clamp for interchangeable tool shank
Inventor: PETERS WALTER DIPL ING
IPC: E21C35/19
Filed: 1989-05-13
Abstract: The large-hole drill has a holder (10) accommodating interchangeable cutting tools (11) with cylindrical shanks (13), which are detachably clamped in a holder bore (15). The tool is held and clamped bya bolt (17) with a tapering peripheral portion. This fits in a drilling (16) crossing and partly cutting into the holder bore, and in which it is movable. The tapering face on the bolt either bears against the contact zone (20) on the shank to form a self-locking clamp or releases it. USE/ADVANTAGE - Secures tool with no free movement while allowing rapid and easy replacement being particularly for drilling into soft rock, salt, etc.
Patent DE-3916455-A1 (DE)
Title: Complex shaped components made of individual elements - fixed together with each element having specific properties adapted to its working condition
Inventor: BIEBL HILMAR
IPC: H01F3/02
Filed: 1989-05-20
Abstract: Components having complex shapes and surfaces subjected to different stress and wear conditions are made up of at least two preformed compact or lamella elements of different materials with properties suitable to the requirements of its use. USE/ADVANTAGE - Esp rotationally symmetric, eccentric or prismatic shaped bodies which have to withstand high static and dynamic force such as systems plates or control curves.  The properites provided by a certain part are adapted to its operating conditions. When worn out, parts can be easily replaced.
Patent DE-3919109-A1 (DE)
Title: Rod sensor for revolution rate measurement e.g. for vehicle wheels - has axial spring element formed from friction bush which allows axial rod motion in pole wheel direction
Inventor: HEINLEIN WERNER
IPC: G01P1/00
Filed: 1989-06-10
Abstract: The revolution rate rod sensor (1) rod is held in a bore by a clamping friction bush (4) and detects rotation of a pole wheel (6). A sprung element exerts a spring force on the rod sensor in the  pole wheel direction. The sprung element consists of the bush and axial claws formed from the bush which engage the outer rod surface and only allow axial rod motion in the pole wheel direction. ADVANTAGE - Rod sensor is forced only  towards the pole wheel without additional assembly or material costs.
Patent DE-3927779-A1 (DE)
Title: Straddling dowel with expander sleeve - has longitudinal slots and inner thread, with threaded bolt and angled spacer pieces
Inventor: FISCHER ARTUR PROF DR
IPC: F16B13/12
Filed: 1989-08-23
Abstract: The straddling-dowel for anchoring in conically inward-widening holes, consists of an expander-sleeve (1) with lengthwise slots (4) in an inner thread. A threaded straddling-pin (2) fits into a narrowing lengthwise threaded hole (8). The threaded bolt (2) extends from the straddled-out part (3) into the un-sloted shaft part of the expander-sleeve (1). The threaded bolt (2) has a hollow container or other screw-driver holder. Angled spacer-pieces (6) stick out on the end of the expanded end of the expander sleeve (1) to the centre axle. USE/ADVANTAGE - The straddling dowel can transfer forces from the shaft to the expander segments.
Patent DE-3927791-A1 (DE)
Inventor: WIELAND HEINZ DIPL ING
IPC: F04D29/54
Filed: 1989-08-23
Abstract: Axial fan which contains an impeller (6) provided with rotor blades (14), which impeller is arranged in a flow duct (4) enclosed by a wall (1). In or on the wall (1) in the area of the blade tips (15) at least one opening is provided which is equipped on the duct side with a cover (21) having through holes (22). <IMAGE>
Patent DE-3927971-A1 (DE)
Title: Hand-held power tool with attached cord - enables high axial force to be applied to tool
Inventor: LEIDL HAGEN
IPC: B25H1/00
Filed: 1989-08-24
Abstract: The hand held power tool, such as a power drill, has a clamp (16) fitted to its body (4) to enable one end of a cord (10) to be attached. This cord (10) passes around the part of the structure (2) being drilled and its free end is then attached to a shaft (20). This shaft is attached to the drill body in the place in which an auxiliary handle is normally fitted. This shaft (20) can be rotated by means of an attached handle (26) so that the cord (10) is wound on to the shaft and exerts an axial force on the drill during the drilling operation. USE - Hand-held power tools.
Patent DE-3928246-A1 (DE)
Title: Machine tool cutting bar into defined lengths - has first tool which cuts groove and second tool which cuts off required length
Inventor: MOLT OTTO P
IPC: B23B49/04
Filed: 1989-08-26
Abstract: The long bar (2) of material is cut into precisely dimensioned lengths on a machine tool with two cutting stations (12,13).  A circumferential groove (7) with a V-shaped profile is cut in the bar at the first station (12). The bar is then moved axially by the gripper (20) until it abuts against a stop (27). This movement of the bar (2) brings the groove (7) in line with the second tool (16) which then cuts right through the bar to produce the required length (3). At the same time the first tool cuts a second groove in the bar at the required distance from the newly cut end face (8). USE - Cutting bar material to required length.
Patent DE-3930270-A1 (DE)
Title: Adjustable armrest for motor vehicle door - has electromagnet device for locking at required height and spring adjustment mechanism
Inventor: WOLFF MARTIN
IPC: B60N2/75
Filed: 1989-09-11
Abstract: The armrest has a handgrip (3) and a height adjustable arm rest surface (4), displaced by a spring mechanism and locked at the required height by a releasable electromagnet device. Pref., the arm rest surface is displaced telescopically relative to a reception housing via cooperating slides, with 2 spaced coil springs acting between them. The handgrip pref. incorporates a manual switch (23) for activating and releasing the electromagnet device used to clamp the armrest surface at the required height. ADVANTAGE - Good reliability and simple operation.
Patent DE-3931405-A1 (DE)
Title: Control circuitry for relay - has transistor switch controlled by pulses of appropriate length
Inventor: NICKEL HEINZ DIPL ING
IPC: H01H47/32
Filed: 1989-09-20
Abstract: A circuitry for driving a relay comprises a switching transistor (TS1) whose collector emitter path is connected in series with a relay coil (K) connected in parallel with a diode (LD). The transistor (TS1) is driven by a series of pulses whose period is such that the relay is switched on with the min. supply voltage (Us) during a pulse. The pulse frequency is greater than the discharging time of the relay. USE/ADVANTAGE - Digital transmission via relays. Small loss.  Allows supply voltage to vary over wide range.
Patent DE-3933417-A1 (DE)
Title: Stiffened vehicle component construction - several identical mass produced components are stacked and have intervening layers of glass fibre and binder
Inventor: BENKWITZ JUERGEN DIPL ING
IPC: B62D29/00
Filed: 1989-10-06
Abstract: A vehicle construction providing increased safety uses only identical mass produced parts, eliminates the need for special components and increases strength with the lowest possible wt. increase. The component is constructed of several identical components (1) stacked above each other and either attached to each other or having intervening layers (2) of glass fibre and a polymeric binder, e.g. a thermosetting resin or a plastic. The complicated contour (3) of the stacked components (1) is exactly the same as that for a single component (1). USE/ADVANTAGE - In vehicle, partic. motor vehicle construction. Improves vehicle safety by stiffening members without the need for specially prepared components.
Patent DE-3938725-A1 (DE)
Title: Rotor for stone crushing machine - has protective covers fitted to rotor discs between hammers
Inventor: GREINER GEB KEUTER
IPC: B02C13/28
Filed: 1989-11-23
Abstract: The stone-crushing machine has a rotor formed from a number of discs (6) mounted side by side on a common shaft (2). Each disc (6) has a central boss projecting from each side so that there is a gap between the outer parts of adjacent discs. These gaps receive the hammers (12) which are secured by bolts (11) aligned parallel to the rotor axis and which pass through the discs. The spaces between the hammers (12) lying in the same plane are fitted with protective covers (14). These protective covers are held in place by bosses which engage holes in the discs (6). USE - Stone crushing machine.
Patent DE-3939085-A1 (DE)
Title: Indoor flagstaff for exhibition hall - contains fans generating transverse air currents over whole flag length
Inventor: MAHN REINHARD
IPC: G09F17/00
Filed: 1989-11-25
Abstract: The indoor flagstaff is for use in exhibition halls etc. It contains fans to create a current of air to hold the flags extended. The fans (8) are mounted on the lengthwise axis of the pole, and generate air currents in the transverse direction, acting on the flags over their full lengths. USE/ADVANTAGE - Permanent display of full text etc. on flags which are seen waving in the breeze, even in an indoor situation.
Patent DE-3939281-A1 (DE)
Title: Glass exchanger tubes providing effective heat transfer - to surrounding water form condensate layer to protect tube plate
Inventor: REININGER KLAUS-DIETER
IPC: B01D53/00
Filed: 1989-11-28
Abstract: Hot gases from boiler plant axially enter the head of a cylindrical casing holding a heat exchanger formed of multiple parallel glass tubes anchored in top and bottom tube plates, where they are anchored by rubber or plastic sealing rings held in grooves. The glass tubes extend above the upper tube plate by 10-80 mm to form an area wherein condensate from the gases accumulates as a layer protecting the plate from excessive temp. The mixt. of condensate and gas descending the tube provides automatic cleaning, while the heat content is transferred to water occupying the spaces between tube exteriors. Surplus condensate is laterally discharged into a neutraliser. The casing base is filled with material such as Fe or Al chippings and a Cu rod for neutralising the condensate by discharging the hydrogen ions. ADVANTAGE - Glass exchanger tubes transfer heat effectively with no risk of corrosion from hot fumes.
Patent DE-4001297-A1 (DE)
Title: Facade-plate mounting - has plastic cap with centring spigot on bolt shank engaging in drilling
Inventor: FISCHER ARTUR PROF DR
IPC: F16B13/14
Filed: 1990-01-18
Abstract: The facade-plate mounting comprises bolts secured in undercut drillings.  Each bolt has a cone at the forward end and a screwed shank at the rear.  A plastics covering cap (6) on the shank (8) has a centring spigot (11) engaging in the drilling (2).  The bolt (1) is secured in the latter by a hardening mixture (5) of two ingredients. There can be lengthwise notches (12) in the outside surface of the spigot.  These continue as radial ones in the support face (13) of the cap. ADVANTAGE - Strength and accurate positioning free of  expansion pressure of thin porous plates.
Patent DE-4002907-A1 (DE)
Title: Cylindrical cutting head forms extension of borehole drill pipe
Inventor: BLASCHKE KURT
IPC: E21B10/48
Filed: 1990-02-01
Abstract: The cutting head for use in sinking cased boreholes has a body in the form of a cylindrical ring that makes an extension to the drill pipe. The cutting head has teeth uniformly spaced around its periphery. The teeth (4) are indirectly joined to the body by sleeves welded into, and completely filling, recesses in the body. The sleeves have recesses for the fitting and securing of feet (5) formed on the teeth. Several features and variants of the cutting-head design are claimed.
Patent DE-4005917-A1 (DE)
Title: Book block separator in book binding plant - which is convertible from sheet laying station of stacking machine
Inventor: THRANDORF HANS-PETER
IPC: B42C19/08
Filed: 1990-02-24
Abstract: A bookbinding machine is supplied with a stack of blocks of pages, to which end papers must be added before binding. A stack of end papers is placed at a station (1, 2) on each side of the page block station (3). The page blocks (5) are delivered, one at a time, to a platform which places a page block onto one set of end papers. The block and end papers are then moved to a  station (2), where a second set of end papers is placed on top of the block.  The block, with its two sets of end papers, is then transported to the binding machine. ADVANTAGE - Low-cost conversion for block separator.
Patent DE-4007391-A1 (DE)
Title: Trim strip covering grooves in vehicle - with seam edge shaped into grip lip to secure trim
Inventor: BENTO PAULO VALENTE
IPC: B60R13/04
Filed: 1990-03-08
Abstract: The elastic trim strip (5) is clipped to the vehicle to cover the groove formed between body panels, e.g. between the side panels and the centre panel of the roof. One of the panels has its edge flange (3) set into the groove to form a lip onto which the elastic trim strip is clipped. No additional fasteners are required. The flange is shaped with a ridge (4) running along its length. This prevents the trim strip being pulled off. The strip itself does not require any reinforcing.
Patent DE-4010291-A1 (DE)
Title: Rear wheel steering for vehicle - has adjustable connection to steering to alter steering ratio w.r.t. front wheel steering
Inventor: APETAUER MILAN PROF DR
IPC: B62D7/15
Filed: 1990-03-30
Abstract: The rear wheel steering linkage has the connection (13) to the front wheel steering on an adjustable mounting, including an adjustable joint (22) which sets the relative steering effect of  the front and rear wheels.  The adjuster can be used to steer the rear wheels when the front wheels are set fixed. The adjustment provides a variable control to suit the driving conditions.  Both front and rear axles can be steered in opposite or the same directions depending on the required control.  For parallel opeation the vehicle has improved control at high speed driving, or can be moved away from a parallel  park position against a wall. USE/ADVANTAGE - Improved driving control, maximum steering range for rear wheels.  All wheel drive vehicle, off the road vehicle.
Patent DE-4013690-A1 (DE)
Title: Pipe fixture clamp for downpipes - has tie bolt and two curved clamp parts each with curved piece and clamping arm
Inventor: STRIEDELMEYER EGON
IPC: E04D13/08
Filed: 1990-04-28
Abstract: The pipe fixture clamp has a tie-bolt (20) and two curved clamp parts (26, 28). Each has a curved piece (30, 32) and a clamping-arm (34, 36) running radially in relation to the clamp. The two clamping arms (34, 36) have a space holding part of the tie-bolt (20). The space (60) has an inlet (52) for the tie-bolt (20). The two clamp-parts (26, 28) have a link connection (46) on a pivot axle (48) parallel to the clamp's axis. USE/ADVANTAGE - The tie bolts can be adjusted in at least two degrees of freedom.
Patent DE-4013917-A1 (DE)
Title: Release of plug from socket - by pulling tool that has threaded bars fixed into socket housing
Inventor: BAESCH MANFRED
IPC: H01R43/26
Filed: 1990-04-30
Abstract: A tool is used to remove a cable plug from a socket which has been in position for some length of time. The plug housing has a cover (1) with a threaded hole to receive a rod. At the front of the plug is a flange (14) with holes that allow tiebars (3) to be fixed into the socket housing (14). Once mounted on the housign the central rod may be rotated to pull the plug clear of the cone shaped section to which it is fixed. ADVANTAGE - Tool releases plug of electrical equipment due for repair or maintainance from socket.
Patent DE-4014406-A1 (DE)
Title: Chlorinating mixt. of finely divided polyolefin - and anti-coagulating agent in presence of free radical accelerator, avoiding liq. or gaseous media
Inventor: KANG HEE-DONG
IPC: C08F8/22
Filed: 1990-05-04
Abstract: Chlorination of polyolefins involves (a) mixing a finely divided polyolefin with an anticoagulating agent, and (b) chlorinating the mixt. in a multi-stage process in presence of a free radical accelerator. The anticoagulating agent is TiO2, talc, SiO2 or polystyrene sulphide. The mixt. may also contain a heat transfer medium, esp. KCl or NaCl, in ratio of polyolefin:anticoagulating medium;heat transfer agent of 100:50-200:10-30; the ratio of polyolefin:anticoagulting medium is 1:1. The polyolefin is esp. high or low density polyethylene or polypropylene. The 1st and 2nd stages of the chlorination are under the action of UV radiation of wavelengths 3000-4000A. An alkyl chloride, esp. (m)ethyl chloride, is formed as by-prod. USE/ADVANTAGE - The use of liq. or gaseous media is avoided. The chlorinated polyolefins are suitable for prodn. of adhesives.
Patent DE-4014909-A1 (DE)
Title: Storage container for fluent materials - has removable protective film inside and out which can be dissolved
Inventor: LINDEN ALFRED
IPC: A01G9/02
Filed: 1990-05-10
Abstract: The storage-container for liquids, granules, powders or pastes can be cleaned by removing a protective film applied to the outside and inside. The protective film is applied by vacuum-deep-drawing, coating, spraying, immersion, powder-coating or sintering and maybe coloured. All traces of the film are removed by dissolving it by altering the temperature. USE/ADVANTAGE - The protective film is resistant to the  contents of the container and can be dissolved and removed.
Patent DE-4015101-A1 (DE)
Inventor: SCHULZE ECKEHART
IPC: F03C1/06
Filed: 1990-05-11
Abstract: A hydraulic drive device, especially for robot arms with several joints, has as the power drive an axial-piston hydraulic motor (13) in which the pressure medium supply is controlled by a follow-up servo valve (14) and there is an electric motor (17) for predetermining the reference position which can be controlled by output signals from a central NC or CNC control unit. A cylindrical tubular section (46) of the drive shaft (47) of the rotor (16) of the axial-piston hydraulic motor (13) is fitted to rotate on an outer casing surface of a casing section (49) housing the electric motor (17) intended to control the predetermined reference via a hollow tubular axial extension (48) forming the bearing pin for the rotor (16) of the casing section (49) housing the electric motor (17). Control channels for controlling the operation of the axial-piston motor take the form of sector-shaped external flutes in the pin (48) with which radial transverse channels in the rotor (16) leading to the drive chambers (39) of the linear cylinder (41) of the rotor (16) alternately coincide.
Patent DE-4015460-A1 (DE)
Title: Magazine for workshop tools - comprises several polygonal discs recessed around perimeter and vertical guide rod with elevating arm
Inventor: PAJTLER ALEXANDER
IPC: B23Q3/155
Filed: 1990-05-14
Abstract: The tool magazine comprises a number of polygonal discs (10) mounted coaxially on a vertical standing column which revolves equidistant from each other. The discs (10) each have a series of recesses (4,4',4") around the perimeter (14) into which the tools are placed (3,3',3"). Parallel to the column is a vertical guide rod (21) on which a horizontal telescopic arm (20) can slide up and down. The arm (20) is equipped with a clamp (22) to hold the tool (3), and can be elevated tor each any of the discs (10). USE/ADVANTAGE - A compact and more rapidly accessible magazine.
Patent DE-4020128-A1 (DE)
Title: Appts. to monitor facilities in ice storage bin - has water basin in which ice blocks are movable, arm to monitor level of stored ice blocks and U=shaped drainage channel
IPC: F25C5/187
Filed: 1990-06-25
Abstract: Ice machines producing small blocks require monitoring of the numbers of ice blocks stores, and residual quantities of water to be disposed. The water basin in which the ice blocks are formed is movable and the level of stored ice blocks is monitored by an arm along the edge of the basin. A U-shaped sloping drainage channel with a raised lip placed along the edge of the arm removes overflow water from the basin and the channel is hinged and held in place by a spring. The movement of the drainage channel is determined by a limiting switch. USE/ADVANTAGE - To provide monitoring facilities in the ice storage bin and to simplify disposal of residual cold water from the basin after each ice-making cycle.
Patent DE-4027056-A1 (DE)
Title: Fluoro-chloro-hydrocarbon cpds. are recovered during disposal - of cooling appts. by repeated crushing of appts. to finer size granules in sealed zone, and sucking out liberated fluoro-chloro-hydrocarbon
Inventor: ERDWICH JOHANN
IPC: B09B3/00
Filed: 1990-08-27
Abstract: In disposal of cooling appts., refrigeration part of which has opt. been separately disposed of, sepn. of fluorochlorohydrocarbons (I) contained in the appts., is by (1) repeated mechanical disintegration of appts. of size of granules in region enclosed from exterior; (2) sucking out atmos. from this region; and (3) filtering atmos. to separate and then collect (I). Coarse crushing is followed by a first fine crushing step, and Fe pts. are sepd. and withdrawn from enclosed region. Remaining material is pref. subjected to second or further subsequent crushing and compressed in part or whole. After second subsequent crushing, material is compressed into briquettes under very high pressure and briquettes are transported to outside enclosed region. ADVANTAGE - (I) are sepd. and recovered substantially completely. (6pp Dwg.No.1/2)
Patent DE-4032862-A1 (DE)
Title: Surface treatment of turbine blades prior to flame spray coating - with high speed water jet to increase coating adhesion
Inventor: STORCH WILFRIED DR
IPC: C23C4/02
Filed: 1990-10-12
Abstract: Turbine blades subject to centrifugal force are surface pre-treated before coatings are applied by thermal spraying by a blasting process, in which the positioned component surface is constantly exposed to a motor droplet jet in a high-speed range, for controlled erosion at a pressure of 2500-3500 bar. Abrasives can be added to the water and nozzle shape, distance and relative speed between jet and surface are variable. ADVANTAGE - Increase in adhesion of coating.
Patent DE-4033538-A1 (DE)
Title: TV signal data abstracting device - uses data from teletext to control TV receiver and video recorder
Inventor: NAKA MASAFUMI
IPC: H04N5/782
Filed: 1990-10-22
Abstract: The figure shows a block diagram of the device which examines transmitted television signals, operating equipment in such a way as to facilitate recording of pre-requested programes using video recorders. In particular, an electronically controlled receiver (11) operates with signal decoder (12) and comparater (14) in a feedback circuit with controller (13) to select channel as required by stored data in system controller (15). The same circuits check time information from transmitted TV signals to allow operation of video recorder. USE/ADVANTAGE - Video recorder circuits. Allows recording of delayed transmission through checking of teletext data.