baber/WOPTO huggingface dataset:
Patent DE-3716317-A1 (DE)
Title: Device for Shutting Off Leaky Portions of a Hydraulic System
Inventor: HORNUNG HELMUT
IPC: B60T11/32
Filed: 1987-05-15
Abstract: The subject of the invention is a device for shutting leaky portions of a hydraulic brake system from other parts of the brake system, the operating capacity of which is maintained. The device contains a cylinder (Z) with two working chambers (19,24). Each working chamber is connected to a pressure source and to a member actuable by pressure during braking. Arranged displaceably in the cylinder is a piston (12) which, when the working chambers are pressureless, is held under spring pre-stress in a first end position. The piston (12) contains an overflow chamber (9) which is opened via by-passes during the feed of hydraulic fluid into the member and which, in the event of a leak in the brake-system parts located downstream of the cylinder, is shut off from the second working chamber. <IMAGE>
Patent DE-3717138-A1 (DE)
Title: Opening part for a container and method for the manufacture of a container
Inventor: KUEPPERSBUSCH GERD
IPC: B65D25/40
Filed: 1987-05-21
Abstract: Prefabricated opening parts for containers have deformable projections. These are difficult to manufacture. An opening part is to be provided, which is easy to manufacture and can easily be inserted into a container. The opening part (1) has an aperture part (2) which has a neck (3) and a connecting flange (5). A container wall (6) is introduced into a depression (9) in the connecting flange (5). Mounted on the side of the container wall (6) facing away from the connecting flange (5) is a perforated disc (10) which overlaps both the container wall (6) and the connecting flange (5). These parts are sealed together. The container thus created can be used for liquids, powdery bulk materials, including those of the chemical or pharmaceutical industry. <IMAGE>
Patent DE-3720900-A1 (DE)
Inventor: GRABIETZ JOACHIM DIPL ING
IPC: F24H1/18
Filed: 1987-06-24
Abstract: The development of bacteria and of germs, in particular of those which cause legionnaires' disease, in hot water heating, is prevented by the special cold water inflow inside the hot water heater. In this hot water heater, the entire cold water consumption is conducted through the hot water heater. At the same time, moreover, the pressure level in the cold water system and hot water system is the same, as a result of which the disadvantage of fluctuating mixing temperatures at the consumer is avoided. 
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Patent DE-3721685-A1 (DE)
Inventor: LOTZ HORST K
IPC: B22D11/126
Filed: 1987-07-01
Abstract: Provided in a flame-cutting machine in continuous strip-casting plants for the thermochemical cutting of very wide and thick feedstock for the rolling of steel sheets, particularly at a high output rate, is a clamping device which, in a contactless fashion or with only slight loading by a measuring roller (2) or by means of a clamping system, synchronises the continuous strip 1 and the flame-cutting machine (3) for the flame-cutting operation. <IMAGE>
Patent DE-3724655-A1 (DE)
Title: Hydraulic valve clearance adjusting element
Inventor: ZIELKE HORST DIPL ING
IPC: F01L1/25
Filed: 1987-07-25
Abstract: A hydraulic valve clearance adjusting element in a valve gear, especially in an internal combustion engine, is described, with an inner piston and an outer piston encompassing the former, which are guided so as to be longitudinally displaceable in one another with tight leakage gap at operating temperature and which with one another define an oil pressure chamber adjacent to the leakage gap. In order to achieve rapid gas venting of the oil pressure chamber even when the valve clearance adjusting element is cold and the oil in the chamber thereby viscous, the inner piston is composed of a material which has an essentially higher coefficient of thermal expansion than the material of the outer piston, so that the leakage gap in the cold state is essentially wider than in the warmed-up state, thereby allowing oil and gas to flow out of the oil pressure chamber.
Patent DE-3741680-A1 (DE)
Title: Method and device for glazing the surface of a paper web
Inventor: HEBELS ALBERT
IPC: D21G9/00
Filed: 1987-12-09
Abstract: A calender (1) for glazing (calendering) the surface of a paper web (2) has assigned to it a gloss measuring apparatus (48) having a plurality of measuring elements (51) arranged transversely to the running direction (arrow 31) of the paper web, which elements monitor in sectors specific measuring or width sections (49a to 49d) of the paper web and are connected, for purposes of control, to separately actuable setting elements (41) of a moisturising apparatus (27) which, as a function of the gloss values obtained, moistens the paper web more or less in sectors in the region of moisturising zones (47a-47d) corresponding to the same measurement or width sections of the paper web in such a way that in the case of gloss measurement values lying below a preset desired value, the moisturising in the corresponding sectors is intensified, and vice versa. <IMAGE>
Patent DE-3802157-A1 (DE)
Title: Method of determining polyhalogenated polycyclic aromatics having a planar structure and a test kit for the carrying out thereof
Inventor: VANDERLAAN MARTIN DR
IPC: G01N33/53
Filed: 1988-01-26
Abstract: Contamination by polyhalogenated polycyclic aromatics having a planar structure in industrial samples are detected by means of a specific reaction with antibodies, after the samples have been digested and/or prepared.
Patent DE-3807077-A1 (DE)
Title: Device for the contactless optical measurement of distance according to the triangulation method
Inventor: KOPPERS MANFRED ING GRAD
IPC: G01S17/46
Filed: 1988-03-04
Abstract: The device for the contactless measurement of distance has a base device 1 and a measuring head 2 which are connected together via optical fibres 3, 4. A laser beam is generated in the base device 1 by a laser 5 and fed via a laser beam input coupling stage 6 into the optical fibre 3. In the measuring head 2 this laser beam exits from a laser beam output coupling stage 11 in the direction of a test object 16. The imaged light point LP is focused by an objective 12 onto a light-sensitive surface 17 of the receiver head 13 in the measuring head 2. This light reaches a position-sensitive semiconductor sensor 7 in the base device 1 via the optical fibre ribbon 4, whose optical conductors lead into the surface 17. The contour of the test object 16 is determined by evaluation electronics on the basis of the point of impingement of the focused light point LP. The surface 17 is curved. It can be designed to be strip-shaped or shell-shaped. <IMAGE>
Patent DE-3809295-A1 (DE)
Title: Snap-action electrical switch
Inventor: STRUTH HERMANN ING GRAD
IPC: H01H13/20
Filed: 1988-03-19
Abstract: The subject of the invention relates to a snap-action electrical switch, especially a reversing light switch for motor vehicles, having a sheet-like frame spring which can be snapped over using a plunger actuator and on which at least one contact for contact with at least one assigned fixed contact is fastened. The invention is characterised in that the frame spring (31) is snapped by means of a cross-member (34) and a wave-shaped bent stressing tongue (37) which is formed on the other cross-member (32) which carries the contact (33), into corresponding knife-edge bearings (35 and 38, respectively) of a terminal contact piece (25), and in that the lateral members (36) of the frame spring (31) are operatively connected to the plunger actuator (8) via a spring-loaded switching rocker (39). <IMAGE>
Patent DE-3810946-A1 (DE)
Title: Controlled soft-focus lens system - for photocine and TV camera has liquid crystal cell mounted behind objective in direction of light entrance
Inventor: STETTIN HEIKO DR
IPC: G02B13/20
Filed: 1988-03-31
Abstract: The lens system includes a liquid crystal cell (2) mounted behind the objective (1) in the direction of light entrance in the imaging beam path, and connected electrically to a control unit (3). The liquid crystal cell (2) is designed so that with an applied electrical voltage, a dynamic scattering or dispersion effect arises in the zone between two parallel glass-plates containing a liquid-crystal substance. The scattering effect is characterised by domains, which become smaller, as a result of the difference in density of dispersion centres, and the light dispersion increases. ADVANTAGE - Variable photographic soft-focus system requiring low-power drive.
Patent DE-3818563-A1 (DE)
Title: Electric motor for driving window/headlamp wipers on motor vehicles
Inventor: LOESCH DIETER
IPC: B60S1/08
Filed: 1988-06-01
Abstract: Electric motors are known which are used to drive window/headlamp wipers on motor vehicles and which have a transmission housing and a parked position switch which has a metallic switching disc which is attached to a gear wheel which is produced from plastic and a plurality of wiper springs which are fixed to the housing, one of which springs is located in a gap in the switching disc when the engine is stationary in the parked position. With these electric motors there is the risk of a overheated wiper contact burning into the plastic material of the gear wheel and being torn off when the electric motor starts up. In order to prevent this, according to the invention a metal plate which is electrically insulated from the switching disc is attached in the gap of the switching disc, on which metal plate the wiper spring can rest with a wiper contact borne by it when the motor is at a standstill in the parked position.
Patent DE-3818994-A1 (DE)
Title: Disc store drive
Inventor: ELSAESSER DIETER
IPC: H02K5/10
Filed: 1988-06-03
Abstract: Disc store drive having a brushless drive motor (10), which has a stator, provided with a winding, and an outer rotor (22), coaxially embracing the stator to form an air gap (17) and having a permanent-magnetic rotor magnet (16). A hub (32) connected in a rotationally fixed manner to the rotor magnet (16) is provided with a disc support section (31), which can be inserted through a central opening (35) of the storage disc (34) for the purpose of receiving at least one storage disc (34) arranged in a clean space (48). The stator winding and the rotor magnet (16) are accommodated at least over half of their axial length within the space enclosed by the disc support section (31). The rotor and the hub are mounted rotatably by means of a bearing arrangement on a fixed shaft. The inner space (46) of the motor is sealed off from the clean space (48). A disc-like ring part (6) is fitted concentrically on the open end of the rotor bell. <IMAGE>
Patent DE-3821262-A1 (DE)
Title: Tyre testing machine
Inventor: HIMMLER GUENTHER DIPL ING
IPC: G01M17/02
Filed: 1988-06-23
Abstract: A tyre testing machine for testing the quality and/or uniformity of motor vehicle tyres, with which tangential forces can be determined, additional bending elements being able to be coupled to a torque measuring device which detects the tangential forces, for the adjustment of specific torsion stiffnesses and thus for the adjustment of various measuring sensitivity ranges.
Patent DE-3828187-A1 (DE)
Title: Projectile opener with associated projectiles in weaving machines
Inventor: JANKOVSKY FRANTISEK DIPL ING
IPC: D03J5/06
Filed: 1988-08-19
Abstract: To increase performance, operating reliability and fabric quality in projectile weaving machines, the projectile opener with associated projectiles has a spring element (20, 21, 22, 23) which is located between the opener part (18) and mounting part (19) and which, during the opening of the projectile, allows an elastic displacement and/or rotation of the opener part in relation to the mounting part. As a result, fluctuations in position of the projectile are compensated and frictional loads and wear are reduced considerably. The coordinated contact faces (28, 29, 33, 34) of the opener part and of the projectile clamp result in surface contact during the opening operation. They can be made flat and wedge-shaped. Oil-free operation can be achieved in the case of plastic projectiles by means of an opener part made from abrasion-proof impact-resistant plastic. <IMAGE>
Patent DE-3828571-A1 (DE)
Inventor: WEIHRAUCH GEORG
IPC: B29C61/00
Filed: 1988-08-23
Abstract: Brushware which consists of a bristle carrier and bristles anchored therein made of thermoplastic material is manufactured by the method that holes are formed on the bristle carrier to accommodate the bristles, the bristles are melted at their attachment-side ends resulting in a shortening of their length and a formation of a thickening, and they are inserted with the thickening first into the holes on the bristle carrier. In order to be able to connect bristles made of any desired thermoplastic material to bristle carriers made of any desired material with the least time expenditure, provision is made for the holes in the bristle carrier to be formed with a free cross-section which is smaller at least in some areas than the cross-section of the thickenings at the bristle ends, and for the thickenings and/or the walls of the holes to be heated to a joining temperature which is between the transition temperature and the flow temperature in the case of amorphous thermoplastics or to a joining temperature which is between that and the crystallite melting temperature in the case of partial crystalline thermoplastics or held at this joining temperature, at which the thermoplastics are in the entropy elastic state, and the thickenings are inserted into the holes by thermoforming in this state.
Patent DE-3829670-A1 (DE)
Title: Liquid crystal display
Inventor: SALZMANN TIMM
IPC: G02F1/13357
Filed: 1988-09-01
Abstract: In a liquid crystal display an optical conductor (2), which has a trapezoidal cross section is arranged behind a liquid crystal cell (1). By means of its obliquely running sides, light reaching them is reflected back into the optical conductor (2) so that the light losses are very small and a uniform illumination of the liquid crystal cell (1) occurs. <IMAGE>
Patent DE-3833155-A1 (DE)
Title: Conveying apparatus
IPC: B61B10/02
Filed: 1988-09-29
Abstract: The invention relates to a conveying apparatus, in particular for the textile industry, having a conveying unit which has a running rail having one or more running surfaces arranged in parallel, along which running surfaces supporting rollers of a supporting device can run. The conveying unit also has a drawing means which is driven via a drive motor and a drive wheel and is in part guided along the running rail in such a manner that the supporting device is grasped via a driving device and transported along the running rail, a sliding clutch being provided between the drive motor and the drive wheel of the drawing means.
Patent DE-3839934-A1 (DE)
Title: Apparatus for rolling out a sealing sheet
Inventor: FROEHLICH DIETER
IPC: B09B1/00
Filed: 1988-11-26
Abstract: According to the invention, rolls of sealing sheets are rolled out on the subgrade of landfill sites by means of a drive which is coupled to the roll spindle and is supported with at least one boom on the seal and/or the subgrade.
Patent DE-3900556-A1 (DE)
Title: Fuel feed system
Inventor: HOFBAUER PETER PROF DR
IPC: F02M37/12
Filed: 1989-01-11
Abstract: Fuel feed systems of this kind are required for internal combustion engines installed in motor vehicles. These fuel feed systems are formed by a mechanical fuel pump, an accumulator and a hydraulic pump. In this case, self-starting with the feed system empty can require a workshop. In contrast, the feed system according to the invention has the features that a valve which controls the flow of fuel from the hydraulic pump to the accumulator additionally assumes a second opening position when the balance chamber is empty and there is no flow of fuel from the hydraulic pump and that in this position   a) the connection between the hydraulic pump or line and the balance chamber is interrupted; b) a connection is established between the delivery line and the balance chamber and c) a connection is established between the intake line and the hydraulic pump or line.   Automatic starting of the fuel feed system with the minimum technical expenditure is thus now achievable.
Patent DE-3901521-A1 (DE)
Title: Shackle-type connector
Inventor: GOTTSCHALK GUENTER
IPC: F16B7/00
Filed: 1989-01-20
Abstract: In a shackle-type connector for conveyor supporting structures, the spar ends of which have congruent striking plates fixed in the spar profile as well as, in the striking plates, recesses and, in the hollow profiles, slots for a bolt which can be introduced with a transverse member into their adjacent recesses and which can be pivoted into the slots of the hollow profiles by means of parallel legs of a chain-connection member, provision is made, according to the invention, for the transverse member (23), the legs (21, 22) and the chain-connection member (20) to form a shallow-profile portion, the parallel legs (21, 22) of which can be pivoted with their front edges into the slots (16, 19) and the web of which has a recess, the lower transverse edge (43) of which limits the web portion which serves as a transverse member (23) and which, after introduction into the inwardly extending perforations (15) of the striking plates, is rotatable in the striking-plate recesses (14), whilst the chain-connection member (20) is shaped out of the upper web portion (Figure 1). <IMAGE>
Patent DE-3906265-A1 (DE)
Title: Hair dryer
Inventor: STEMME ROSALIND
IPC: A45D20/42
Filed: 1989-02-28
Abstract: For a hair dryer with an electric heater and a blower device, it is proposed to provide its covering with at least one area which has a lower hardness than adjacent areas and does not drop below a particular minimum proportion of the overall outer surface. As a result, increased impact and splash-water protection, improved gripping security and reduced sound radiation are achieved.
Patent DE-3906971-A1 (DE)
Title: Pneumatic machine for distributing seed and/or fertiliser
Inventor: WEISTE HELMUT DIPL ING
IPC: A01B49/06
Filed: 1989-03-04
Abstract: The invention relates to a pneumatic sower machine for distributing seed and/or fertiliser, with storage tanks for the various materials. Arranged under the tank outlets are metering devices which can be set independently to different sowing rates, and the storage tanks are arranged in the front area of the tractor, prederably in the front power lift. The storage tanks are combined to form a constructional unit and include tanks of identical or different volume. Two conveyor lines are provided which lead from the metering devices to the tail of the tractor and open via a mixer unit into a pneumatic distributor, and the seed and/or the fertiliser are distributed over the working width.
Patent DE-3910460-A1 (DE)
Title: Thickness shear mode crystal resonator and method for its production
Inventor: HAYASHI HITOAKI
IPC: H03H3/02
Filed: 1989-03-31
Abstract: In the case of a thickness shear mode crystal resonator and a method for its production, wherein a natural crystal surface appears on at least a part of the surfaces of its crystal plate, to the extent that the part is essentially transparent, the resistance of the crystal resonator is in this case small and a large Q factor can be obtained. There is no decrease in the temperature characteristic of the resistance and the vibrational frequency of the crystal resonator. <IMAGE>
Patent DE-3912822-A1 (DE)
Title: Gene expression Aspergillus strains - using iso:penicillin n-synthetase promoter from acremonium chrysogenum
Inventor: KUECK ULRICH PROF DR
IPC: C12N15/80
Filed: 1989-04-19
Abstract: The isopenicillin N-synthetase (IPNS) promoter from Acremonium chrysogenum, or its 500 bp SalI-NcoI fragment, is used for expression of genes in Aspergillus strains. Also claimed are Aspergillus strains transformed using the indicated promoter or fragments. USE/ADVANTAGE - The process may be used to introduce homologous or heterologous genes into Aspergillus strains, esp. A. niger, e.g. introduce selectable markers or to produce more productive strains. High protoplast transformation rates may be achieved.
Patent DE-3915652-A1 (DE)
Title: Hydraulic control for spool valve unit - makes use of throttles to reinforce spring action
Inventor: OLBRICH GOTTFRIED DIPL ING
IPC: F15B13/04
Filed: 1989-05-12
Abstract: The hydraulic control arrangement has a directional control valve in which the control chamber (60) is connected by a channel (77) with a first throttle point (63) between the stop (14) and the pressure balance (12). A second throttle point (75) is arranged in the channel (74) so that both throttle points control an intermediate flow in the chamber (60) which backs up the force exerted by the control spring (61). USE/ADVANTAGE - Hydraulic control unit of compact  design which requires a very small spring cavity.
Patent DE-3915813-A1 (DE)
Title: Spinning process using an open-end rotor - has indented inside surface at end of the feed channel
Inventor: BROCKMANNS KARL-JOSEF DR ING
IPC: D01H4/38
Filed: 1989-05-13
Abstract: A process of spinning with an open-end rotor, and which utilises a conical delivery passage for fibres, between the opening roller and the rotor, is provided on the inside with a series of length-wise narrow rounded ridges for a short distance along the narrow end of the passage, to improve the desired yarn structure. The top end of the conical passage where the fibres is delivered into the groove of the rotor, has a surface with identations for a short distance on the inside. Initially, a series of small grooves running parallel to the cylindrical shaped length, and lying close together, it is also proposed that this may follow the design of a rifle bore. This evolves further into a miscellany of grooves, flutes, fillets, and gullies with rounded ridges or flat surfaces between, with an assortment of shapes in the same circumference. USE - To arrange the fibres as they enter the rotor, in an improved formation and alignment, which results in a better quality of yarn.
Patent DE-3920167-A1 (DE)
Inventor: FILBERT DIETER PROF DR ING
IPC: H03H19/00
Filed: 1989-06-16
Abstract: In order to recognise a predeterminable signal (v(t)) in input signals (u(t)), the latter are taken to a first multiplier (M1) and the predeterminable signal (v(t)) to a second (M2), to the input side of which is applied a carrier signal (p(t)) with a carrier frequency (fo). The outputs of the multipliers (M1, M2) are connected to signal inputs (E1, E2) of a convolver (C). In order to be able fully to evaluate the information of the input signals (u(t)) and (v(t)) and to obtain bipolar output signals (g(t)) for further processing, the carrier signal (p(t)) is taken to a frequency doubler (FV), the output (7) of which is connected to an input (6) of a further multiplier (M3). The output signal (c(t)) of the convolver (C) is applied to another input (5) of the further multiplier (M3).
Patent DE-3921772-A1 (DE)
Inventor: WALTER MANFRED
IPC: B24B23/02
Filed: 1989-07-01
Abstract: A hand-held tool for driving a cutting or grinding disk includes a housing and a protection hood with a sleeve-shaped extension detachable connected to the housing. A receptacle is mounted on the housing for releaseably holding the sleeve-shaped extension. The receptacle is formed as a slotted sleeve so that it has a variable diameter. The diameter is changed by moving circumferential ends of the sleeve toward or away from one another. The displacement of the sleeve ends can be effected by a lever pivotly mounted on the ends.