baber/WOPTO huggingface dataset:
Patent DE-2932574-A1 (DE)
Title: Electromagnetic suspension heating of electrically conducting sample - in induction coil fed with high frequency current free from low harmonics
Inventor: ESSMANN UWE DIPL PHYS DR
IPC: H05B6/32
Filed: 1979-08-10
Abstract: The sample is heated or melted without using a crucible, but is suspended in an induction coil fed by an a.c. generator in which the low frequency modulation is below 5%. The induction coil is located below an electromagnet providing a d.c. magnetic field which is not rotationally symmetrical. The pref. electromagnet has a U-shaped core with legs of unequal length; and the sample pref. rests initially on three wires insulated from each other and mounted in a vertically adjustable holder. Used e.g. to decarburise and de-gas a monocrystalline Nb sphere 7 mm dia., via 16 h at 2300 deg.C where the d.c. magnetic field restricts rotation of the Nb sphere to below 600 r.p.m.
Patent DE-2939593-A1 (DE)
Title: Two-for-one spindle threading - uses additional jet to carry yarn into opening of the threading channel
Inventor: MUENKER GERT ING GRAD
IPC: D01H15/007
Filed: 1979-09-29
Abstract: There is an additional compressed air jet, to thread a two-for-one twisting spindle, to generate a vertical airstream pointed upwards at the centre of the yarn threading opening leading to the threading channel. The design gives a positive carrier medium for the yarn, so that it is correctly threaded and ranges into the correct ballooning zone of the equipment.
Patent DE-2942705-A1 (DE)
Title: Alternating voltage frequency difference measurement - using integration of fixed duration pulses triggered by low-high transitions
Inventor: DELAGO ERICH
IPC: G01R23/06
Filed: 1979-10-23
Abstract: Themethod and arrangement for measurement of the frequency of an analogue voltage signal involves the use of a clock frequency from a clocking oscillator. The device is economical to produce and exhibits only minimal circuit related errors. Each low-high transition of the alternating voltage input signal causes generation of an associated pulse of constant amplitude and duration. An integrator produces a positive constant charging current during a pulse and a negative constant charging current during a pause. For frequency difference measurement, each input voltage causes a pulse series to be generated and the integrator produces a positive current for one pulse and a negative current for the other. The integrator acts as a digital-to-analogue converter.
Patent DE-2945015-A1 (DE)
Title: Adjuster spindle in hollow piston rod - regulates piston valve setting in hydraulic damper cylinder
Inventor: WILLICH JEAN-HERBERT
IPC: F16F9/46
Filed: 1979-11-08
Abstract: An adjustable hydraulic shock absorber for vehicles, includes a piston which is located in a cylinder that is filled with hydraulic fluid. The piston has axial fluid transfer holes which are closed on both sides by leaf spring valves. Each valve plate has an elastic pressure ring which control the required valve opening force. The pressure ring setting is adjustable from outside the cylinder, by a spindle which is located in the hollow piston rod.
Patent DE-2947275-A1 (DE)
Title: Wound dressing pad - with plastic container for sterile storage and application
Inventor: HESSNER HANS
IPC: A61F/
Filed: 1979-11-23
Abstract: Bandage with absorption pad surrounded by sticking plaster is stored in a semi-cylindrical cap, made of polystyrene, polypropylene or polyethylene, with the open end closed by a flat foil which is permeable to gas but is fluid tight. The semi-cylindrical cap has tow parallel notches which hold down the tops of the sticking plaster whilst the space between them accommodates the pad. To apply the dressing the flat foil is torn off and the pad with the sticking plaster is pressed by the cap against the skin of the patient. This ensures entirely sterile storing and application of a dressing without fingers touching the skin of the patient.
Patent DE-3000275-A1 (DE)
Title: Universal mine gallery driving excavating machine - has detachable bolt coupling replaceable tool to carrier frame on tracked chassis
Inventor: HIDASI ISTVAN DIPL ING
IPC: E02F3/96
Filed: 1980-01-05
Abstract: The chassis is supported on endless tracks and has a hydraulic power system. There is a tool connected to this power system and there are control systems esp. in the area of a driver's seat. The universal working machine is used esp. for driving forward galleries in underground mines. The chassis (1) has a carrier element (6) - pref. frame-mounted on it. The tool (7) has a coupling element (71) - pref. a coupling plate - fastened to the carrier element by a detachable fastening element - pref. bolt. The tool can have a system of arms forming a parallel guide unit, and a loading shovel mechanism (8) mounted on this. The tool can also be a winch, or carriage-mounted drilling machine.
Patent DE-3001888-A1 (DE)
Title: Read and write control of credit card data - has magnetic strip with facility to store data to minimise falsification by having identifying mark punched out at write stage
Inventor: HARTMANN HANS
IPC: G07B11/11
Filed: 1980-01-19
Abstract: A credit card using a magnetic track is designed to minimise the possibility of falsification. The card consists of a plastic backing (4) with a coating strip of magnetic material (5). The card is passed through a slot formed between two plates (1,2) on a read/write station. A number of write heads (7) and read heads (8) are located in the base plate. An identifying mark locates the card for write operations and this mark is pinched (10) out after recording has taken place. Once punched the location for any read operation is difficult to identify and so provides security against falsification.
Patent DE-3003709-A1 (DE)
Title: Synchronous machine pole position and slip measurement - using magnetic rotor detecting rotary flux between armature and stator
Inventor: MRHA WILFRIED DIPL ING
IPC: H02K11/00
Filed: 1980-02-01
Abstract: A measurement device for determining the pole position and slip of synchronous machines is applicable with minimal constructional alteration to both rotating synchronous machines and synchronous linear motors. It gives a pole position value for the stationary condition. The arrangement, whose measurement mechanism is constructed on the principle of a synchronous machine, is placed between the stator and armature of the synchronous machine being measured. It contains a diametrically magnetised permanent magnet rotor (6) and an assembly (18) detecting deflections and rotations of the rotor. The output drives an evaluation device with the rotor position corresponding to the pole position. When slip is present this causes the rotor to turn. Stray flux is guided by an arrangement (7) with a number of pole shoes (8) in the air gaps facing the stator.
Patent DE-3010003-A1 (DE)
Inventor: DOKOUPIL JIRI DIPL ING
IPC: C14B1/26
Filed: 1980-03-15
Abstract: An apparatus and process for expanding the area and for drying of leather pieces, felts and other similar flat materials. On both sides of the leather elastic foils impervious to air are disposed, a vacuum is connected to the space between the two foils and then forces are applied for enlarging the area of the foils, where the forces are predominantly disposed in the plane of the foils. Thermal energy can be fed to the flat material. The forces can be intermittently applied and they can be provided preferably by hydraulic or pneumatic means.
Patent DE-3010833-A1 (DE)
Title: Escape system for large passenger aircraft - has multiple parachutes connect to passenger compartment, with explosives to jettison remainder of aircraft
Inventor: NEUBECK ERIC
IPC: B64C1/32
Filed: 1980-03-21
Abstract: The two phase aircraft escape system is triggered by the crew when a crash is inevitable. In the first phase, explosives and drag chutes jettison the wings, tailplane, undercarriage and baggage compartment while simultaneously drogue and main chutes are deployed to retard the passenger compartment and retain it horizontal. In the second phase a computer system monitors the time to touch down and deploys further sets of main chutes to achieve a smooth deceleration of the passenger compartment to an acceptable sink rate. The parachutes are stowed in housings in the roof of the passenger compartment.
Patent DE-3015730-A1 (DE)
Title: Absorbent feminine hygiene tampon - contg. alkali carboxy:methyl-cellulose staple fibre absorbent radially compressed with liq.-permeable sheath
Inventor: PIETSCH HELMUT DIPL CHEM DR
IPC: A61F13/22
Filed: 1980-04-24
Abstract: Tampon for female hygiene consists of a spirally coiled fibre-fleece absorbent surrounded by a cylindrical liq. permeable sheath and radially compressed. (a) The absorbent consists partly or entirely of alkali carboxymethyl-cellulose fibres, which are water-insoluble at body-temp. and have ave. degree of substit. 0.05-1, titre 4-10 dtex, staple length 12-100 mm and strength at least 20 cN/tex. (b) The sheath, which is cylindrical in unpressed condition, consists of non-elastic fibres. On wetting with physiological fluids, the fibres resume their vol. without exerting undue pressure on body cavity.
Patent DE-3016880-A1 (DE)
Title: Modified traction differential drive - has direct drive to one wheel and differential drive to other wheel
Inventor: SCHWARZ HELMUT
IPC: B60K17/16
Filed: 1980-05-02
Abstract: The modified vehicle differential has the drive taken directly from the propshaft to one wheel, and to the other wheel via the differential. The drive is split by a set of bevel gears with one bevel linked to the input bevel of a simple differential. The output from the differential is taken over two slave bevels to a single bevel and drive shaft. The differential has simple bevel gears and does not require a large crown wheel with its associated low ground clearance. Good traction is obtained during cornering and on poor grip roads, without having to have a locking differential.
Patent DE-3019190-A1 (DE)
Title: Continuous distance measurement in mine workings - uses cable with drum and interchangeable potentiometer for different measurement distances
Inventor: DETERING KLAUS
IPC: G01B7/02
Filed: 1980-05-20
Abstract: The arrangement for continuous measurement of the variation in distance between measurement points is esp. for monitoring workings in coal mines. It contains a cable and drum with a toothed disc on the drum axle engaged by the clamp spring gear. A potentiometer driving a precision voltage-to-frequency converter is also driven from the same shaft. It is a compact system which can be adjusted to the required measurement length without great effort and under comparable measurement conditions. The cable drum (6), spring (13), cable drum shaft (10) end plates (4,31) and the spring shaft (12) have the same dimensions for all the distances to be measured. The potentiometer (20) and/or the associated gearwheels (32,33) which are externally mounted, can be changed for different measurement distances.
Patent DE-3027316-A1 (DE)
Title: Clamp for joining two plates of a mechanical structure - has assembly which can be made and undone without the use of tools
Inventor: LATUSSEK HANS PETER
IPC: H05K7/18
Filed: 1980-07-18
Abstract: The clamp is used to give a firm connection between two plates (1,9), e.g. parts of a cubicle or frame structure. A bolt (3) with head (4), shank (5), thread (6), and nut (7) is fastened in an opening (2) in one plate (1). The nut is tightened until the end of the shank (5) bears solidly against the plate (1) surface. The length of the shank is such that the space between the under side of the bolt head (4) and the surface of the plate (1) is slightly less than the thickness of the plate (9) to be joined on. The under side of the bolt head is slightly conical. A slot (10) in the second plate (9) allows it to be placed over the bolt head. The plate is then pushed under the bolt head and an interference fit results. The joint is undone by the opposite procedure.
Patent DE-3028732-A1 (DE)
Title: Light-mounting floppy disc drive - grips centre of disc between spring-loaded collars on driving spindle
Inventor: HARTMANN HANS-HEINRICH DIPL IN
IPC: G11B17/028
Filed: 1980-07-29
Abstract: Equipment for recording or reproducing data, using floppy discs, incorporates a drive mechanism in which the centre of the disc (2) is gripped between an upper collar (8) and lower collar (1). The lower collar is attached to the driving spindle (6) through the middle, and the upper collar is held down by the force of a spring (13) retained in a hollow in its top half. Also retained in this hollow is a locking disc (10) secured by a resilient locking ring (15) which fits into a groove above it, around the inside. A locking pin (7) is fitted through the top of the spindle, passing through a horizontal hole. The locking collar (8) is released by rotating it until a slot across the locking disc in in line with this pin, allowing it to be lifted clear. An alternative design uses a special driving core with interlocking cam shaped elements.
Patent DE-3030750-A1 (DE)
Title: Ball-point pen with knife blades - has blades masked by ball-point when used for writing
Inventor: HERING WILHELM
IPC: B43K29/18
Filed: 1980-08-14
Abstract: The ballpoint pen or pen cartridge has knife blades to allow easy opening of cartons etc. One or more blades (2) are so mounted on the tip of the cartridge (1) that they are masked by the ballpoint (3) when this is used for writing. Alternatively, a blade can slide in a guide rail in the pen clip, being guarded when not in use.
Patent DE-3032227-A1 (DE)
Title: Fitting for roof or attic window - has hinge pin fitted with torsion springs inside square section tube to support window weight
Inventor: VOLLMER HANS
IPC: E05F1/12
Filed: 1980-08-27
Abstract: The roof window is hinged along one edge in a fixed frame. The hinge has two torsion spring rods (23) joined together by a cylindrical coupling member (29) with transverse pins (30). A radially projecting rod (10) has one end fixed to the coupling member and the other end attached to the fixed window frame. The torsion spring rods are enclosed in a square section tube (26) attached to the hinged frame. The ends of the rods fit in end caps (28). There are two or more torsion springs (24) which fit over the torsion rods. One end of each spring fits in radial hole (25) in the torsion rod(s). The other end of each spring has a short straight arm which abuts against the wall of the square section tube. In this way the weight of the hinged window is partly supported by the torsion springs.
Patent DE-3033791-A1 (DE)
Title: Multiple share rotary plough - has trailing wheel at rear with suspension permitting swing about horizontal and vertical axes
Inventor: BUHL MANFRED ING GRAD
IPC: A01B15/00
Filed: 1980-09-09
Abstract: The plough with a beam (6) carrying a line of plough shares projecting from opposite sides and which can be swung around its longitudinal axis, can be supported at an angle in a raised position when not in use. When lowered, its outer end is supported by a trailing wheel (10) which is carried by an extension (26) which can swing about a horizontal pivot axis (11) nearer the traction vehicle. This axis forms part of a connection which also allows the trailing wheel to swing about a vertical axis, i.e. towards or away from the plough beam. The swing in both directions is limited by stops, and the maximum angle of swing is equal for both, and is approximately equal to the angle of tilt of the beam when raised.
Patent DE-3038809-A1 (DE)
Title: Drawer for furniture with linear guide piece - has bearing under drawer, with support of two crosspieces, and bar
Inventor: HERO FRANZ
IPC: A47B88/12
Filed: 1980-10-14
Abstract: The drawer for a chest of drawers is mounted so that it moves horizontally by using a linear guide piece (LF). The linear guide piece (LF) has at least one bearing (LG) on the underneath side of the drawer (SL). The bearing (LG) is joined to the chest of drawers (MK) by means of at least one support (AS) gripping under the drawer (SL). The support (AS) consists of at least two cross pieces (Q1,Q2) extending beneath the drawer (SL). The bearing has a support bar (TS) joined to the cross piece (Q1,Q2) and extending crosswise to them.
Patent DE-3040105-A1 (DE)
Title: Three=phase AC motor speed control - uses variable frequency DC=AC converter and voltage control
Inventor: BLOCHER REINER
IPC: H02P23/07
Filed: 1980-10-24
Abstract: The system is used for regulating the speed of a three-phase asynchonrous motor (1). The motor is connected to an intermediate circuit, and control at high speed is performed by varying the frequency of AC fed to the motor. The system is used for driving a lift or a hoist,control at low speeds is by varying the voltage. The current for the motor is supplied by a DC/AC converter (2) with external control. There is a firing pulse generator (6) connected to a switching circuit (7). The external control signal is fed to a comparator (10) connected to the switching circuit via amplifiers, (8,9) a frequency converter (12) and a computing network (13).
Patent DE-3041720-A1 (DE)
Title: Mirror with V=section reflecting upright grooves - has grooves including 90 degrees or two flat mirrors at 90 degrees to show image without reversal
Inventor: KASTL ALFRED
IPC: B44F1/02
Filed: 1980-10-18
Abstract: The mirror comprises a plate (1a). One side of the plate has parallel V-section grooves (2) whose sides include an angle (alpha) of 90 deg. while adjoining sides of adjacent grooves also include 90 deg. angles. The grooves have a reflective surface (3). When an observer looks (B) at the grooved side of the mirror with the grooves in the vertical position, the reflected image is normal instead of showing a left-right reversed mirror image. When the plate is transparent, e.g. glass, the same applies for viewing (B') from the parallel other side (4). The same effect may be obtained by two flat mirrors at an angle of 90 deg. to one another.
Patent DE-3042419-A1 (DE)
Title: Heating device for motor vehicle mirror - with PTC heating elements on rear of adhesive copper foil
Inventor: SCHAEDLER BERND ING GRAD
IPC: H05B3/84
Filed: 1980-11-11
Abstract: A heating device for flat surfaces, e.g. of the rear mirrors of motor vehicles consists of a thin plate with a good heat conductivity (copper) which can be cut to suit the size of the mirror and carries on one side a self-adhesive layer, protected before use by a tear-off foil. An insulating layer (cardboard, asbestos, glass fibre tissue, plastics) on the other side has rectangular windows to which PTC heating elements are fixed. The heating element is coated by a sealing cpd. (silicone, rubber) and connected to the ignition circuit of the motor vehicle. Such a heating device is easy to produce at low cost and is readily adaptable to various mirror sizes.
Patent DE-3044699-A1 (DE)
Title: Recessed roller for furniture sliding gear - has spring clip fastening inside slotted rail
IPC: B60B33/04
Filed: 1980-11-27
Abstract: The rail (1) has an upwards facing slot (8) to grip the underside of the furniture item and a downwards facing slot (9) into which the roller is slid. The axle ends of the roller are secured on spring plates (10) slid into the slot, with the outline of the plates gripping the sides of the slot securely. The roller has bearings (2) to roll around the axle in a central locating groove (5). The slot has deeper central sections to provide grips for the spring plates. The outer dimensions of the roller do not protrude from the slot.
Patent DE-3048585-A1 (DE)
Title: Coin operated automatic vending machine - has vertical carton stack in module form with motor driven dispensing unit and is esp. for cigarettes or chocolate
Inventor: PRUEMM GEORG
IPC: G07F11/16
Filed: 1980-12-23
Abstract: A coin operated goods dispenser e.g cigarette dispenser, is designed for ease of access, simplicity of dispensing operation and low power requirements. Each product is installed as a module (8) with the cartons stacked vertically (10). The module is supported by a profiled section (81) onto a rail (82). The bottom carton in the stack is extracted by a transfer belt driven by a motor (12) and supported on rollers (122,123). A limit switch (13) signals operation of the unit. All electrical leads are brought out to a single connecting socket (15).
Patent DE-3108408-A1 (DE)
Title: Process for spraying a bitumen/polymer composition
Inventor: HEYEN JOHANNES
IPC: E04B1/66
Filed: 1981-03-06
Abstract: Published without abstract.
Patent DE-3125636-A1 (DE)
Inventor: HARTING JUERGEN DR
IPC: A61K31/13
Filed: 1981-06-30
Abstract: 1-(p-2-iso-propoxyethoxymethyl-phenoxy)-3-isopropylamino-propan-2-ol and its biocompatible salts are very useful in decreasing the intra-ocular pressure, e.g., to treat glaucoma.
Patent DE-3126396-A1 (DE)
Title: "Compressor installation with a mounting base"
Inventor: HOFMANN RUDOLF
IPC: F04C23/00
Filed: 1981-07-03
Abstract: In order to be able to attach a compressor, especially an oil-injection screw compressor, to a vehicle, a mounting plate is provided which is designed to be hollow and accommodates drive devices and connecting lines, so that as compact and tight an overall arrangement of the compressor plant as possible is obtained. <IMAGE>
Patent DE-3135464-A1 (DE)
Title: Comparator with hysteresis
Inventor: ERBELE KURT
IPC: G01R19/165
Filed: 1981-09-08
Abstract: The invention relates to a comparator with hysteresis which can be adjusted with arbitrary accuracy within wide limits, consisting of a differential amplifier stage and an output stage transistor. The object of specifying such a comparator with low power consumption, which can be monolithically integrated, is achieved by the fact that the reference voltage is changed by the position of the output voltage in such a manner that an additional current is impressed in the reference voltage divider with the aid of a current source. <IMAGE>
Patent DE-3136699-A1 (DE)
Title: Underbody for transport containers
Inventor: SCHULZ GERD
IPC: B65D90/02
Filed: 1981-09-16
Abstract: The profiles of the transverse profiles have a length which corresponds to a multiple of a grid size. The longitudinal supports have openings for the transverse supports within the grid size. Prior to welding, the openings are inevitable guides for the height-adjustable transverse supports, thus providing independence in the later choice of the bottom. The profiles are rolled profiles so that the underbody produced is stress-relieved, even when the profiles have been welded together. <IMAGE>
Patent DE-3137068-A1 (DE)
Title: Contact lens having an aspherical fitting surface
Inventor: WILMS KARL-HEINZ
IPC: G02C7/04
Filed: 1981-09-17
Abstract: A description is given of a contact lens having an aspherical fitting surface, as well as of a method for producing contact lens surfaces. The fitting surface is a "quasi-parabolic" surface with an increasing flattening, and is fitted to the particular eye in such a way that in the ophthalmometric-topometric region of the cornea it extends parallel to the latter and flattens off faster than the cornea outside this region. In the method described, the individual meridians of the lens surface are machined in sections using a cherry which is guided via the evolute of the particular meridian.
Patent DE-3145494-A1 (DE)
Title: Device for guiding the piston of a working cylinder
Inventor: UNGER HERBERT ING GRAD
IPC: F15B15/14
Filed: 1981-11-16
Abstract: The invention relates to a device for guiding the piston of a working cylinder, the piston being acted upon on the one hand by an action force generated by pressure medium and on the other by a reaction force generated by a spring element. The sliding surface of the piston is arched in the direction of the longitudinal axis at least in one partial area, the arched area of the sliding surface according to an advantageous embodiment of the invention having at least one lubricant groove running in the circumferential direction. Additional means for guiding the piston in the cylinder are not necessary since the arched piston wall prevents any tilting of the piston.