baber/WOPTO huggingface dataset:
Patent DE-3807117-A1 (DE)
Title: Twin clutch comprising two friction clutches
Inventor: GABRIEL HANS
IPC: F16D21/08
Filed: 1988-03-04
Abstract: Twin clutch comprising two friction clutches. Each of these friction clutches has an axially movable friction disc which is supported by its hub on a shaft, between an axially displaceable pressure plate and an axially fixed reaction pressure plate and their displaceable pressure plates face one another. Arranged between the displaceable pressure plates is a diaphragm spring which, with its outer rim, engages on one of the displaceable pressure plates and, radially to the inside, at a distance from its outer rim, engages on the other displaceable pressure plate and can be supported tiltably between these points of engagement. The inner rim of the diaphragm spring can be displaced axially by means of an actuating device to disengage the friction clutches. To ensure that the actuating device extends to the outside of the shaft, the actuating device has a plurality of push rods, each of which is passed displaceably through an opening in the hub of the friction disc on the actuation side, engages by one end, via a first axially displaceable thrust bearing on the inner edge of the diaphragm spring and, with its other end, is supported axially on a second thrust bearing that can be displaced axially to disengage the friction clutches.
Patent DE-3810759-A1 (DE)
Title: Method of welding pipes and webs to form a gas-tight pipe wall
Inventor: BOSHALT JUERGEN
IPC: B23K9/18
Filed: 1988-03-30
Abstract: The invention relates to a method of welding pipes and webs to form a gas-tight pipe wall, in particular for steam-boiler construction, with the use of the submerged-arc welding process, in which a wire-shaped weld filler metal is fed to the welding location by means of a welding head while producing an arc. In order to increase the welding speed and to improve the weld formation, the weld is produced by two welding heads arranged one behind the other, of which the first welding head, to produce a root pass, is directed towards the web surface at a distance, corresponding approximately to the wire diameter of the weld filler metal, from the longitudinal edge of the web and is orientated at an angle of between 0 and 20@ to a reference plane, running at right angles to the web surface and parallel to the longitudinal edge of the web, towards the gap between pipe surface and side surface of the web in the area of approximately half the web thickness, and of which the second welding head, for the piercing welding of a cover pass, is inclined relative to the orientation of the first welding head by an angle of between 1@ and 40@ against the welding direction.
Patent DE-3815142-A1 (DE)
Inventor: GROSSE VOLKMAR DIPL ING
IPC: E21D11/38
Filed: 1988-05-04
Abstract: The invention relates to a sealing for construction elements, in particular tubbings, which are assembled to form a tubular tunnel, each element having at least one encircling elastomeric sealing frame which is generally composed of four profiled strips and is usually located in a corresponding recess of the construction element, the profiled strips of two adjoining construction elements being arranged relative to one another in such a way that the grooves located on the base side of the profiled strips come to lie in mirror symmetry relative to one another in the unloaded and aligned state. The essential feature of this sealing consists in the fact that the back (12, 13) of the profiled strips (6, 7), in the fitted state, do not project or do not project substantially beyond the recess (4, 5) of the construction element, and that at least one of the opposite profiled strips can be activated by means of an injectable medium increasing the total volume, the hollow space (10, 11) available to begin with for this medium being small compared with the total volume of the profiled strip in the non-activated state. <IMAGE>
Patent DE-3816094-A1 (DE)
Title: Tilting device for the spring-loaded driver's cab of commercial vehicles
Inventor: DIEPOLD KLAUS-DIETER DIPL ING
IPC: B62D33/07
Filed: 1988-05-11
Abstract: As a known, spring-loaded tiltable driver's cab is being tilted, after the centre of gravity of the driver's cab has exceeded the tilting axis, the driver's cab can either fall freely forwards against an end stop or it is locked by complex means on the lift cylinder for the purpose of preventing a movement of this kind. The invention proposes a latch (11) which, for its part, is pivotable and is articulated on a connecting rod (10) or can be actuated by a hydraulic cylinder (15). The entire arrangement is made in such a manner that during normal operation of the vehicle the latch (11) is released and the driver's cab (2) can therefore deflect freely. If, in contrast, the driver's cab is tilted, the latch automatically pivots into its locking position and engages in a rocker (6) which is then held fixed on the driver's cab. Since the rocker (6) is connected to the lifting unit of the tilting device, the driver's cab can then only execute the movements forced upon it by the lifting unit. <IMAGE>
Patent DE-3822124-A1 (DE)
Title: Process for the preparation of hot-melt adhesives
Inventor: GARDENIER KARL-JOSEF
IPC: B29B7/00
Filed: 1988-06-30
Abstract: The invention relates to a process for preparing hot-melt adhesives by dissolving polymers in a melt. In order to shorten the duration of the process it is proposed to work in a wet-mixer which has mixing and/or kneading tools mounted on a shaft, and to exert a stirring power of from 20 to 80 kW per m<3> of product mixture. In this process the temperature is adjusted, using an external means of heating if desired, to above the melting point of the lowest-melting component, this adjustment being carried out at least towards the end of the mixing procedure.
Patent DE-3842642-A1 (DE)
Inventor: BOOCKMANN GERHARD
IPC: B05B16/20
Filed: 1988-12-18
Abstract: A process for impregnating or coating objects in conjunction with the intermittent passage of the objects through an impregnating or coating zone, a drying and/or hardening furnace and a cooling zone, immersion or flooding of the objects in the impregnating or coating zone into the or by the liquid impregnating or coating means and thermal afterburning of organic components in the exhaust air of the drying and hardening furnace is characterised in that the objects are led immediately after one another through an inlet lock, the impregnating or coating zone, at least one dripping and preheating zone, the drying and/or hardening furnace, at least one cooling zone and an outlet lock, at least a part of the inlet air is introduced into one of the cooling zones and at least a part of the air introduced into the cooling zone is caused to go via the outlet lock, an air current is led from the cooling zone via the drying and/or hardening furnace to the thermal afterburning and a part of the waste heat of the thermal afterburning is transferred to the contents of the drying and/or hardening furnace, the inlet and outlet locks being zones that are arranged between two doors that can be closed in an essentially gas-tight fashion. The apparatus for carrying out the process has devices for this purpose. <IMAGE>
Patent DE-3907738-A1 (DE)
Title: Adjustable stabilising transverse supports for improving the stability of the jacked-up caravan
Inventor: ZIMMERMANN HARALD
IPC: B65D90/14
Filed: 1989-03-10
Abstract: The caravan stabilising-spindle transverse supports are an additional device on the jacked-up caravan. Every jacked-up caravan wobbles to a greater or lesser degree in the transverse direction. The stabilising-spindle transverse supports have the object of bringing the jacked-up caravan to a fixed standing position. This object is achieved to an extent which hitherto has not been known. The spindle transverse supports help the jacked-up caravan to achieve a stability of nearly 100%. They are to be used exclusively on a parked and jacked-up caravan.
Patent DE-3910714-A1 (DE)
Title: Installation for the free fall of a holding container
Inventor: STEINBORN WOLFGANG DR
IPC: G09B19/00
Filed: 1989-04-03
Abstract: Installation for the free fall of a holding container over a long path, preferably using a vertical shaft with depths between about 200 m and 3000 m and applying a magnetic field for the contactless guiding of the container in the shaft, for compensating the air friction occurring, for the individual braking and for the transport and return of the container, both an acceleration-free condition (0g) and also constant accelerations in the intermediate range from 0 to 1 g being capable of adjustment by means of the magnetic drive field. These intermediate values can alternatively be achieved by using the magnetic field measures according to the invention for inclined suspension.
Patent DE-3915126-A1 (DE)
Title: Balancing machine for rotating workpiece e.g. rotor - has reading unit, at digital computer processing out-of-balance signals, to read ambulant data carriers
Inventor: REUTLINGER WOLF-DIETER
IPC: G01M1/02
Filed: 1989-05-09
Abstract: Force measuring pick-ups (20,22) produce out-of-balance signals supplied to a digital computer (30) for processing in conjunction with workpiece specific data to provide out-of-balance measurement values. A reading appts. (36) in the computer, reads ambulant data carriers (38). The latter are realised as magnetic strip or chip cards. Pref., the workpiece specific data are directly stored on these cards and read out in a working memory (34). ADVANTAGE - Workpiece specific data safely entered into working memory of computer. Prevents errors or manipulation by entry of such data.
Patent DE-3918234-A1 (DE)
Title: Rotary electrical coupling e.g. for hair drier - has inner and outer contact rings permitting limited rotational movement
Inventor: RITT HERMANN
IPC: A45D20/12
Filed: 1989-06-05
Abstract: The rotary coupling allows electrical power transfer between the moving parts. The coupling has an inner bush with contact segments (2) in the form of rings that are located on a hollow, centre bolt (1). Individual wires (12) can be brought through the centre of the bolt and are fixed to the rings. An outer sleeve has contact rings (3) with flexible contact insert rings (6) providing the interconnection. Wires (18) pass through an annular space (17). The passages are shaped to allow 180 degrees of rotation. ADVANTAGE  - Allows relative movement between contact elements.
Patent DE-3918567-A1 (DE)
Title: Electric wiper switch for domestic appliance - incorporates light bulb for illuminating switch and associated pre-resistance
Inventor: BAER SIEGFRIED DIPL ING
IPC: H01H23/02
Filed: 1989-06-07
Abstract: The switch has a 2-part housing incorporating mountings for the fixed switch contacts (35, 36, 37), part of each  contact (35, 36, 37) lying within the switch housing (10) and part projecting on the outside of the housing (10) to provide the terminal contacts. The separation plane between the 2 housing halves (11, 12) is perpendicular to the pivot axis of the wiper contact (15) used to bridge the fixed contacts (35, 36, 37). The wiper switch is illuminated by an incorporated light bulb (41) with an associated pre-resistance (42), one terminal lead (44, 46) of each of which are coupled together and project in common from the housing (10), their remaining terminal leads (45, 47) coupled to respective stationary contacts (35, 36). ADVANTAGE - Simplified automatic assembly.
Patent DE-3922673-A1 (DE)
Title: Stacked high temp. fuel cell - with multilayer electrodes for smooth thermal expansion coefft. transition
Inventor: IVERS-TIFFEE ELLEN DR ING
IPC: H01M8/1213
Filed: 1989-07-10
Abstract: In a high temp. fuel cell having a stack of individual cells separated gas tightly by bipolar plates (2) which include gas channels (3) and which are interposed between electrode (5,7) coated solid electrolyte foils (5,7) have a sandwich construction of 'n' individual layers of different electrode materials and (ii) the individual layer materials are selected according to thermal expansion coefficients to provide continuous transition in 'n+1' steps between the thermal expansion coefficients of the solid electrolyte foil and the bipolar plate. A high temp. fuel cell prodn. process involves, (a) successively producing 'n' individual layers of different electrode materials for the cathode (5) by a foil casting, sputtering, thermal spraying sol/gel, foil electrophoretic, screen printing or plasma spraying process on one side of a solid electrolyte foil (6), (b) sintering the multilayer in one or more steps, (c) producing the anode (7) on the other side of the foil (6) in a similar manner, (d) sintering the anode-forming multilayer, and (e) assembling several such coated foils (1) to form a gastight fuel cell stack in which the foils are separated by bipolar metallic plates (2) having grooves (3,3') which define fuel supply and withdrawal gas channels in the stack. ADVANTAGE - The fuel cell is suitable for permanent operation, is mechanically stable w.r.t. high temps. and pressure differences, and has good electrical capacity provided by the series connection of the stack.
Patent DE-3923008-A1 (DE)
Inventor: MORACH EUGEN
IPC: H01L39/24
Filed: 1989-07-12
Abstract: A process is disclosed for producing oxide ceramic moulded bodies by thermal spraying on a forming surface made of a material that does not react with the oxide ceramic material and that has a coefficient of thermal expansion different from the coefficient of thermal expansion of the sprayed oxide ceramic material. The forming surface is cooled during the coating process. The finished coated forming surface is quenched, thus allowing the coating to be separated from the forming surface as a moulded body.
Patent DE-3926396-A1 (DE)
Title: Chipless conversion of tree into boards - involves use of adjustable pressure bar ahead of slicing knife
IPC: B27M1/00
Filed: 1989-08-10
Abstract: The machine is for slicing off the side boards (16) from a tree stem or squared timber (2) without the formation of chips.  It has an arrangement (22) for adjusting a pressure bar (18) installed ahead of a separating knife (8). A dovetail guide (40) is provided for adjusting the pressure bar (18), the direction of movement of the guide geing slightly inclined to the pressure edge (20) of the pressure bar (18). A transverse racking of the pressure edge (18) opposite the knife blade (6) is achieved by a tiltable suspension (26, 28) of the pressure bar (18). USE/ADVANTAGE - Provides for adjustability of the pressure bar in a machine for slicing off side boards.
Patent DE-3931888-A1 (DE)
Title: Enclosure assembly with hinged frames - which carry warning panels with reflectors and top edge fasteners
Inventor: HINZ KLAUS
IPC: E01F13/02
Filed: 1989-09-24
Abstract: The enclosure consist of frames formed by uprights (8) connected by horizontal members (4). The frames are so designed that they can be joined end to end to form a fence around the danger area. Each frame is provided with panels (11) which are fitted with reflectors (20) to enable the enclosure to be seen in poor light, or at night. The panels are also provided with holes (19) to receive the hasps (16) of padlocks (17) to prevent unauthorised removal of the panels. USE/ADVANTAGE - For protection round open manholes etc., with warning panels for all round use.
Patent DE-3933362-A1 (DE)
Title: Girder with web(s) and two flanges - has shorter shaped elements in web and straight connection between web and flanges
Inventor: BARSUHN PETER DIPL ING
IPC: E04C3/06
Filed: 1989-10-06
Abstract: The girder (10) comprises at least one web (13) and two flanges (11, 12). The web has shaped elements (15a, 15b) shorter in their longitudinal extension than the height of the web. The web edge sections, adjacent to the flanges, have flat transitions for linear connection between the web and flanges. The shaped elements are pref. spaced from each other in the main direction of the web, and the part of the web between them lies in its flat shape. USE/ADVANTAGE - For steel structures etc., with improved force taking up and distribution.
Patent DE-3935488-A1 (DE)
Title: Knee joint endoprosthesis - incorporates shaft of adjustable length to accommodate growth of patient
Inventor: SCHELHAS KLAUS-DIETER
IPC: A61F2/30
Filed: 1989-10-25
Abstract: The knee joint endoprosthesis has a hollow shaft (4) inserted either into the table or into the femur.  This hollow shaft (4) receives a second shaft (8).  This second shaft (8) has pairs of diameterically opposite tangential grooves (16). Pins inserted in holes (14) in the outer shaft (4) engage one pair of grooves (16) and so lock the inner and outer shaft together.  The effective length of the endoprostesis can be adjusted by aligning the appropriate pair of grooves (16) in the inner shaft with the  holes (14) in the outer shaft.  This feature enables the endoproathesis to be adapted to the growth of the patient in the cases where a child is fitted with an endoprosthesis. USE - Knee joint endoprosthesis.
Patent DE-3937480-A1 (DE)
Inventor: MAHLKOW GERHARD
IPC: B60N2/90
Filed: 1989-11-10
Abstract: A car seat comprises a frame (1), which is preferably upholstered and which forms a sitting surface (2) and a back-rest (3). For secure positioning of objects (5), at least the sitting surface (2) is connected to a retaining device (4) which prevents objects (5) placed on the sitting surface from falling or slipping off, and the retaining device (4) has a retaining element (6), at least in the front region of the sitting surface (2) viewed in the direction of motion, which can be brought from a rest position (7) below or approximately in the plane of the sitting surface (2) into a working position (8) above the plane of the sitting surface (2) in which it can be stopped.
Patent DE-3938933-A1 (DE)
Title: Ceramic composite article prodn. - by bonding parts with binder of ceramic filler in aq. polymer soln.
Inventor: KAWAKAMI MICHIKO
IPC: C04B37/00
Filed: 1989-11-24
Abstract: (A) In the prodn. of a ceramic composite article by bonding two articles of the same ceramic material using a binder and then sintering, the ceramic articles have the same thermal shrinkage at room temp. to the sintering temp. and the binder consists of the same ceramic material as filler in an aq. soln. of a water-soluble polymer. (B) A binder, for bonding ceramic articles, consistse of a ceramic filler in an aq. soln. of a water-soluble polymer. Pref. the polymer is one or more of methylcellulose, carboxy carboxymethyl cellulose, hydroxyethyl cellulose, polyvinyl alcohol, polyacrylic acid, polyacrylamide and polethylene oxide. USE/ADVANTAGE - The binder is esp. useful for binding calcium phosphate type ceramics to produce a bio-material. The process and binders low cost and avoid leaching out of noxious substances during use of the article.
Patent DE-3941067-A1 (DE)
Title: Lifting appts. with telescopic mast - has mast constructed with alternate lengths of round and square section tubes
Inventor: RAMANI ZYBER
IPC: E04F21/18
Filed: 1989-12-08
Abstract: The appts is used for lifting loads and has a cruciform base with a roller at the end of each arm. This base supports a telescopic mast which has a load support frame attached to its upper end. The mast can be extended by means of cables (8) and pulleys (6,10) with manually operated winches (4). The telscopic mast is constructed from alternate lengths of round and square section tube fitting one inside another. The gaps between the inner and outer tubes due to their different cross-sections are used as guide channels for the cables (8). USE - Lifting loads in the building industry.
Patent DE-3941693-A1 (DE)
Title: Torsion vibration damper for vehicle clutches - has axially compact arrangement of energy accumulators
IPC: F16F15/123
Filed: 1989-12-18
Abstract: The torsion vibration damper (2,3) for vehicle clutch discs includes a preliminary damper (2) whose energy accumulators are mounted axially adjoining and radially beneath the outer teeth of the hub part. The hub part has sockets for the energy accumulators set at the side of its outer section and radially inwardly off-set relative thereto. The hub body is pref made as a sintered part. USE/ADVANTAGE - The damper for a vehicle clutch is structurally compact both in the axial and radial direction and requires little installation space.
Patent DE-4001791-A1 (DE)
Title: Blast furnace tap-hole drill steel - made of tube with welded cutter head
Inventor: WADER JOCHEN
IPC: C21B7/12
Filed: 1990-01-23
Abstract: Drill steel for the tap holes of blast furnaces has at the end of a tube a welded cutter head with e.g. four drilling wings, formed by two steel plates.  The plates extend beyond the dia.  of the tube and have a stepped front end which is kept at a short distance from the end of the tube cooling air is passed through the centre of the tube. Pref. a steel tube (4) has a male thread (10) for engagement with the drilling machine, and a welded cutter head (6).  To produce e.g. a cruciform bit with four wings (12), two plates (40) are welded by seams (8) to the tube end (20).  Their vertical sections (18) extend beyond the tube dia. (D) and their stepped front edges (14, 26, 40) intermesh. ADVANTAGE - Replaces the costly forged drill steels with their narrow bores for cooling air by a low-cost design which is easy to make.
Patent DE-4002978-A1 (DE)
Title: Skip-type pneumatic lifting equipment
Inventor: NIKOLAEV JURIJ ALEKSANDROVIC
IPC: B65G51/18
Filed: 1990-02-01
Abstract: Inside the walls of the guide tube (1) are sealing and guide devices (10,11) located at predetermined distances from each other and are equal to the complete length respectively the half length of the skip. Each guide (11) comprises at least three rollers (12) at right-angles to the longitudinal axis of the guide tube, and working in conjunction with the skip. They serve to centre the skip in relation to the longitudinal axis of the guide tube, and are fixed to the guide tube by a nave rotary shaft or shaft pin.  The sealing devices (10) each comprise a completely moulded, ring-shaped elastic component (13) fitted in a rigid ring-shaped cover (14), and are individually rigidly connected to it. The cover (14) in turn is connected to the guide tube by a  movement-transmitting connecting link.
Patent DE-4006728-A1 (DE)
Title: Electropneumatic positioner with two inlets at different pressures - employs two EM valves connecting working chambers to atmos. and vacuum alternately and to each other
Inventor: WEGNER TORSTEN
IPC: F02M3/07
Filed: 1990-03-03
Abstract: The pressures are applied to chambers (5, 6) on either side of the piston (3) coupled to the control rod (4) with an adjustment spring (22) supported by a control piston (11). An electromagnetically operated three/two-way valve (19) controls the atmos. pressure line (12) and the vacuum line (13) to the respective inlets in communication with grooves (14, 15) around the control piston (11). The chambers (5, 6) can be interconnected via a blocking valve (21). USE/ADVANTAGE - Control of e.g. throttle flap by-pass in vehicular i.c. engine. Control rod can be driven pneumatically in both directions, dispensing with restoring spring.
Patent DE-4008204-A1 (DE)
Title: Device for coupling winding rod to entrainment shaft - has sufficiently large axial play between coupling pin and socket
Inventor: MAIER PETER
IPC: B65H18/04
Filed: 1990-03-15
Abstract: The device for coupling a winding rod to an entrainment shaft (2) of a winding machine has inside the bearing housing (7) a bearing sleeve (8) which contains on the inside, the entrainment shaft or axis (2) and the rotary bearing (9) thereof. The bearing sleeve (8) is displaceable axially together with the entrainment shaft (2) and socket part (4) which lie axially secure opposite same. The bearing sleeve can be displaceable to and fro hydraulically and/or pneumatically axially in the direction of the winding rod. ADVANTAGE - During loading and unloading there is sufficient axial play between the coupling pin and socket part for a rapid automatic process.