baber/WOPTO huggingface dataset:
Patent DE-4018005-A1 (DE)
Title: Optics with grating for testing spectacle lenses
Inventor: BERTRAND PATRICK
IPC: G01M11/02
Filed: 1990-06-05
Abstract: The optics detect the phase along an optical beam path. A beam radiator (13) provides the light source (14). A working station (15) accepts the optical system (10) to be tested. A receiver (17) intercepts the observed image upstream of a grating (16). A data processor (18) evaluates this image by detecting the phase. A matching element (13) is placed between the working station and the grating. The processor and a calibrator use a beam tracking program and take into account both the theoretical and practical abberations appearing at the convergent matching element (13) for correction.
Patent DE-4022809-A1 (DE)
Title: Guide for bending bows for violin, viola, cello and bass - comprises mould pivotably located at one end and having several parallel accommodating strips
Inventor: NACHTMANN JOHANN DIPL ING
IPC: G10D3/16
Filed: 1990-07-18
Abstract: The accommodating strips (3) in the bending mould (1) are spaced apart by a distance which is less than the dia. of the bow bar (11) to the bent. Their width narrows in the direction of the bar end to the same extent as the bar dia. increases. The curvature of the strips in a longitudinal direction is at least 25 per cent greater than that of the bent bow. Flexible holders (6) are provided to act as counter bearings for the inserted bow bar. Heating and cooling channels (2) are incorporated, and extend on the side of the mould turned away from the holders parallel to the accommodating strips, and at the height of the inserted bow bar. USE - To bend bows for violons, violas, cellos and basses.
Patent DE-4024966-A1 (DE)
Title: Wheel suspension with piston and spring in parallel - has system for increasing passive stiffness of spring
Inventor: LANDESFEIND KLAUS
IPC: F16F9/50
Filed: 1990-08-07
Abstract: The arrangement is for damping a sprung wheel suspension for a vehicle. It has a piston displaceable in a cylinder and dividing it into two working chambers, with the piston and cylinder arranged in parallel with a spring. A dynamic wheel load (Cr) in the region of the wheel eigenfrequency is reduceable by intervention in the damping element (4)  by means of a frequency-dependent increase in the passive spring stiffness of the spring (3). USE/ADVANTAGE - Minimising wheel load to give greater safety and improved ride comfort.
Patent DE-4025652-A1 (DE)
Title: Pipe connection flange with pipe socket - has ring washer of U=shaped annular cross=section, with sealing surface, bridge piece and screws
IPC: B23K31/02
Filed: 1990-08-14
Abstract: The flange for connecting to a pipe (1) is slid over the pipe (1) with a pipe socket (2).  A ring washer (5) with U shaped annular cross-section forms a sealing surface with the bridge piece (6) of the U.  A sleeve flange (8) is slid over the pipe socket (2) and has holes (9) in for fixture-screws, and has a collar (10) extending axially on its outer edge.  The sleeve flange (8) rests against the outer U arm of the ring-washer (5). The sleeve flange (8) is hard-soldered to the pipe-socket (2) and to the U-arm (7) of the ring-washer, and has a groove (14) for containing the hard-solder where it rests against the outer U arm (7). ADVANTAGE - The flange for placing over a pipe uses less material yet is as strong as or stronger than previous flanges.
Patent DE-4027904-A1 (DE)
Title: Processing screened electrical cable end for connecting or terminating - applying twisting device with central bore receiving cable lead wires and outer surface for widening out screening mesh
Inventor: PUTZ WILHELM
IPC: H02G1/12
Filed: 1990-09-03
Abstract: The lead wires (2, 3) of the stripped cable end are inserted in the mouth of a turning-over device (10), against which the screening mesh (5) beneath the cable insulation (6) abuts. The screening mesh can be widened outwards by the angled outer face of the turning over device as the lead wires are drawn through the latter by applied suction. The screening mesh is then turned back on itself to overlie the cable insulation adjacent the stripped end. USE/ADVANTAGE - Clears section to be joined of screening. Copes with cable with reinforcing glass fibres.
Patent DE-4029201-A1 (DE)
Title: Bar cropping shears of four-crank type -  have throw of cutting crankshaft smaller than throw of auxiliary crankshaft to raise mechanical advantage
Inventor: BRAUN HANS JUERGEN
IPC: B23D25/10
Filed: 1990-09-14
Abstract: The bar stack (16) is fed from the straightener (13) into the pair of shears (11,12) where it is cropped into commercial lengths. The upper blade (11) is mounted in a carrier (9), which is connected to a cutting crankshaft (5) by a link (19) and to an auxiliary crankshaft (8). The throw (22) of the auxiliary crankshaft is less than the length (21) of the link (19). The throw (20) of the cutting crankshaft is less than that of the auxiliary crankshaft. The lower blade (12) is carried in a similar linkage and works together with the upper blade through the action of synchronising gears (7,18). The linkage configuartion traverses the blades through a path (24) whose horizontal component is determined by the auxiliary crankshaft (8). The small vertical cutting crankshaft (5,6). USE/ADVANTAGE - Greater mechanical advantage reduces size of motor required.
Patent DE-4031948-A1 (DE)
Title: Aluminium:titanate prepn. - involves mixing aq. acidic titanium-contg. soln. with aq. alkaline aluminate soln., removing ppte., calcining, compressing and sintering
Inventor: BROWN NEIL DR
IPC: C01G23/00
Filed: 1990-10-09
Abstract: Prepn. of aluminium titanate (I) comprises: (i) mixing an aq. acidic titanium-contg. soln. with an aq. alkaline aluminate soln. at pH 4-8 (5-7) to ppte. hydrated titanium oxide and hydrated aluminium oxide at 20-100 deg.C; (ii) removal and washing of the pptes; (iii) calcination of the pptes. at 400-1200 (700-900) deg.C to form a powdered mixt. of water-free Ti02 and Al203; (iv) partial deagglomeration of the oxide mixt.; (v) compression of the mixt. at 200N/mm2 to form a green moulding with a relative density of at least 40 pref. 50%; (vi) reaction sintering of the moulding above 1300 deg.C to produce aluminium titanate. USE/ADVANTAGE - (I) is used as an insulating material in IC engines. The raw materials are used to make (I) are inexpensive
Patent DE-4032664-A1 (DE)
Title: Operating circuitry for low pressure gas discharge lamp - includes PTC resistance in parallel with choke coil for reduced power warm starting
Inventor: ERZMONEIT HORST
IPC: H05B41/282
Filed: 1990-10-15
Abstract: The circuity uses a rectifier (9) supplied from the mains network and a smoothing capacitor (10) providing the lamp operating voltage. Starting is effected via a resistor (12), a diode (13), a winding (21), a choke coil (24), a positive temp. coefft. resistance (25), a second choke coil (26) and the lamp filaments (48). Parallel capacitors (27) for each lamp (29) lie on the outside of the starter housing. The lamp can be started using a reduced power level when warm via the first choke coil (24) and the parallel negative temp. coefft. resistance (25), also used to operate a fuse (5) when the lamp is exhausted. ADVANTAGE - Reduced current for warm starting of lamp.
Patent DE-4035624-A1 (DE)
Title: Adequate lubrication for vehicle differential - involves use of capsule to control oil flow within differential housing
Inventor: HOBOHM JOERG
IPC: B60K17/16
Filed: 1990-11-09
Abstract: The differential is for use in a road vehicle. It incorporates a drive element and a driven element in a housing and is supplied with lubricating oil. The housing (18) is formed as a capsule with a sleeve (26), and a cover (28) with an oil feed pipe (36) and an oil outlet (44) with the oil outflow so arranged that a given amount of oil always remains in the capsule. USE/ADVANTAGE - Method of ensuring adequate lubrication without immersing the differential in oil.
Patent DE-4101476-A1 (DE)
Title: Steel profiled support member used in mining gallery - has stirrup shaped cross=section and is laid end on end with lapped ends
Inventor: NIEBUHR HERBERT
IPC: E21D11/20
Filed: 1991-01-19
Abstract: A steel profile with a virtually U-shaped cross section (1) for use in supporting mining galleries, produced in sections, are laid end on end with the ends lapping. Both sides of the U are grooved longitudinally on the outside (7), and the grooves (7) are kinked (10) at regular intervals along the length. Clamps are used to secure the lapped ends, and these comprise a pair of inverted stirrup shaped plates (20) with longitudinal projecting ribs on the inside face of the free ends, and bolted together (21, 22) at the other ends. The two plates (20) form a claw and the ribs grip inside the grooves in the outside face of the U section. USE/ADVANTAGE - A hole through the lower end of the claw enables things to be hung on them.
Patent DE-4104381-A1 (DE)
Title: Emergency braking system for car - uses brake shoe with reinforced teeth to engage road surface
IPC: B60T1/14
Filed: 1991-02-11
Abstract: The emergency braking system is for a vehicle. It has a bracket (a) hinged and secured beneath the chassis with a brake shoe (b) fitted with reinforced teeth. A blow to the release button (c) on the car dashboard causes the spring (f) to lower the brake shoe and the weight of the rear axle ensures a plough-action engagement of the reinforced teeth with the road surface. USE/ADVANTAGE - Emergency braking system effective within 1/10 of a second.
Patent DE-4105530-A1 (DE)
Title: Explosive mine for dropping from aircraft
Inventor: KROSCHEL HEINZ
IPC: F42B23/24
Filed: 1991-02-22
Abstract: An explosive mine (1) which is dropped from an aircraft is provided with a member to erect itself to the correct position in which it is intended to explode. In this position,spring-loaded arms (5) extend radially outwards to hold the mine upright. If the mine lands so that one of the arms is in contact with the ground, an internal mechanism is actuated which detaches the support plate for the arms from the mine body. The band (8) holding a second group of radial arms (6) is released. The springs acting on these arms of this second group then erect the mine to the required position.
Patent DE-4109411-A1 (DE)
Inventor: HEIN ANDRE
IPC: B42F13/00
Filed: 1991-03-22
Abstract: The invention relates to a letter filing appliance consisting of flat material made of multi-layered cardboard and covered with paper, fabric and/or plastic film, and having a filing appliance back (10), two cover hinges (12, 12') which are arranged laterally on the filing appliance back and are constructed on the outside as a groove (16) and on the inside as a bead (20) bounded by lateral bending lines (18), and having two filing appliance covers (14, 14') which are hinged to the filing appliance back (10) in the region of the cover hinges (12, 12'). In order to reduce the restoring forces in the region of the hinge joints and to avoid premature wear of the back labels arranged on the outer surface of the filing appliance back (10), it is proposed according to the invention that a back hinge (26, 26') be arranged on the side of each cover hinge (12, 12') facing the filing appliance back (10), said back hinge running parallel to said cover hinge and being constructed on the inside as a groove (28) and on the outside as a bead (30). <IMAGE>
Patent DE-4109446-A1 (DE)
Title: Holding device for tachometer shaft of vehicle - has two clamping elements with restricted rotational movement
Inventor: ZBOREK HEINZ
IPC: F16C1/26
Filed: 1991-03-22
Abstract: Holding device for the tachometer shaft of a vehicle having a sleeve (6) with a shaft (7) which can be directly connected to a dividing wall (1) of the vehicle using two clamping elements (9,10) subject to the force of a spring (11). A guide is formed by a forked groove (12) and a stop projection (13), and the rotational movement of the two clamping elements is controlled by the extensions (9i) on the noses (9b). ADVANTAGE - Preassembled device for a tachometer shaft which can readily be installed at a suitably accessible point on the vehicle and which can just as readily be dismantled.
Patent DE-4117523-A1 (DE)
Title: Binding cpd. for producing ceramic grinding bodies - contains silicate slag, kaolin and/or clay and feldspar sand
Inventor: KRAACK KARL-ERNST DR ING
IPC: B24D3/14
Filed: 1991-05-25
Abstract: Binder compsn. for producing ceramic grinding bodies consists of in wt.%:- 0.4-0.8 silicate slag resulting from phosphorus prodn. with a grain size of below 63mm; 0.15-0.3 kaolin and/or clay and 0.1-0.3 feldspar sand. The binding cpd. is a homogeneous mixt. of 0.58-0.62 silicate slag; 0.18-0.22 clay and 0.18-0.22 fieldspar sand. USE/ADVANTAGE - In producing esp. corundumm grinding wheels which can rotate at speeds upto 35 m/sec.  Is an economic boron- and lead-free binding agent which enables the grinding body to be sintered at no more than 1250 deg.C.
Patent DE-4118916-A1 (DE)
Title: Mouldings free from flash, prodn. - by surrounding mould impression with elastic seal whose top face is higher than that of finished moulding
Inventor: MARX ANDREAS
IPC: B29C33/00
Filed: 1991-06-08
Abstract: Rubber or plastic are produced in a mould which gives the desired dimensions; seals are positioned between the mould tools and moulding so as to prevent flash from being formed. The seals are pref. made of elastic material. ADVANTAGE - The process of vulcanising, injection moulding or blow moulding can be used without flash. (Dwg.0/2)
Patent DE-4119492-A1 (DE)
Title: Height adjustment device for plasma arc cutting machines - whereby waiting time for arc to stabilise is automatically determined after which time the height adjuster is switched on
Inventor: HENRICI REINHARD DR
IPC: B23K9/10
Filed: 1991-06-13
Abstract: Automatically switching on a height adjustment device for a plasma arc cutting burner whereby as soon as the ignited burner starts to move over the material to be cut, an arc voltage measuring unit is activated. Only when the arc achieves thermal and/or electrical equilibrium, pref. by having a constant voltage, is the height adjustment device switched on. More specifically, to initiate the height adjustment device, the gradient of the voltage is monitored and when the value falls below a predetermined value, the device is switched on as the arc is considered stable. Alternatively, the voltage is measured over a given time period and average and min./max. values are recorded. When the deviation between the average and min./max. values is smaller than a predetermined value, the arc is considered stable and the height adjustment device switched on. When switched on the height adjustment device monitors the voltage and compares any nominal voltage with a computed optimal voltage. Any difference is given by a height regulation signal. ADVANTAGE - The waiting time (for a stable arc to be established) is automatically determined thereby avoiding the excessive time loss experienced when excessive manual waiting time is imposed, esp. in cases of cutting many small objects from a large sheet.
Patent DE-4120083-A1 (DE)
Title: Cosmetic skin product having rapid absorption to skin - uses finest ground animal embryo cells as frozen mixt. of tissue paste and cell matter and broken down cell membranes
Inventor: CZARNETZKI DIETER FRANZ JOSEPH
IPC: A61Q19/00
Filed: 1991-06-18
Abstract: In mfg. a cosmetic skin product, derived from animal foetus, the fresh organs and/or organ components of the foetus are ground to a finest consistency without any artificial additives so that the cell membranes are broken down. The mixture to be applied to the skin is composed of a tissue paste, cell matter and broken down cell membranes. Before grinding to the finest consistency, the organs and/or organ components are finely ground pref. after a coarse grinding. The mixture of tissue paste, cell material and broken down cell membranes is frozen after prepn. and before use. The granular material for application to the skin is cryo ground and presented as pieces which can be handled, such as sugar cube size and shape. The granular material or pieces are held in cold containers as frozen material. The organs or organ components are taken from poultry embryos a few days before hatching, removed from the egg shells under sterile conditions and dissected. The organs and/or organ components are chilled while grinding. ADVANTAGE - The fresh cell cosmetic product has a high affinity to the skin, with rapid absorption of the active components into the skin structure.
Patent DE-4125059-A1 (DE)
Title: Penetrative coating-impregnation of porous non-metallic substrates - by applying easily-evaporated liq., heating and then applying coating-impregnant during cooling, e.g. for restorative work
Inventor: ORTLEPP WOLFGANG DIPL CHEM DR
IPC: B05D7/02
Filed: 1991-07-29
Abstract: Coating and/or impregnation of porous non-metallic substrate e.g. spray-asbestos or opt. bonded fibrous material is effected by, (i) impregnating into the substrate an easily evaporated liq. e.g. water and/or Et0H; (ii) heating to evaporate the liq.; and (iii) applying the coating or impregnant while the substrate is cooling. Heating in step (ii) is pref. by inductive-, radiant-, convection- and/or resistance-heating, with the liq. applied in step (i) pref. being electrically conductive. The material can contain at least 2 pts.wt. polymeric organic lacquer binder and/or at least 0.1 wt.% of a colourant which is heat-sensitive in the range 10-100 deg.C. as regards colour or colour-depth. USE/ADVANTAGE - The process can be used to apply e.g. silane- or silicone- contg. hydrophobes, water-glass or aq. lacquers to spray-asbestos, (synthetic) stone, cement, gypsum prods. pulp, paper etc., e.g. for restarative purposes. The high temp. of the substrate during cooling allowing increased pentetration of the coating or impregnant by otherwise conventional means.
Patent DE-4135604-A1 (DE)
Title: Stacking chair with tubular legs - has front straight leg and rear leg with upper curved section
Inventor: JAEGER HARALD
IPC: A47C3/04
Filed: 1991-10-29
Abstract: The stacking leg frames for chairs comprise two front and two rear tubes wherein each front and rear tube form a V-shaped first and second frame curve mounted at the side on the chair and connected together by a cross rod. The front tube (1) of the curve is a straight tube which is set at an angle outwards relative to the floor (7). The rear tube (2) starts from the floor and comprises a first straight section which is set an angle outwards relative to the floor, a second convex curved section curved with a radius, and a third straight section which adjoins the upper end of the front tube. The two angles preferably make up 70 deg. ADVANTAGE - A very low stacking height is possible.
Patent DE-4136051-A1 (DE)
Title: Injector for medicinal substances into organ - has surgical syringe connected to cannula with sliding wire
Inventor: KOEHLER DIETER
IPC: A61M25/06
Filed: 1991-11-01
Abstract: The injector for piercing an internal organ and then injecting a medicinal substance, consists of a surgical syringe (1) which is connected by an adaptor to a cannula (4) and to a tube (17) which forms a guide for the wire (13). A sealing disc (22) is fitted in the joint between the adaptor (14) and the tube and the wire passes through a close fitting hole in the disc. The syringe is fitted with a piston which has a sealing disc (6) fitted to its head. The wire is pushed through the cannula to pierce the organ to allow the contents of the syringe to be injected. ADVANTAGE - The piercing of the organ and injection of the medicinal substance can be performed in one operation.
Patent DE-4138025-A1 (DE)
Title: Bandsaw blade for foams and textiles - has wavy sections with teeth to prevent plucking with reciprocating blades
Inventor: POETZSCH ROLF
IPC: B26D1/00
Filed: 1991-11-19
Abstract: A bandsaw blade, esp. for cutting foam or textiles, has a cutting edge (29) with wavy section (23) and straight sections (24) and has teeth (27) which are set back from a line (50) joining the leading parts of the blade. The wavy sections can have 3-5 paired wedge shaped teeth and a wave length of about 10mm and a depth of 1-1.5mm. Straight and wavy sections can alternate and the teeth can be confined to the wavy sections. USE/ADVANTAGE - Partic. useful in preventing plucking at the reversal point in reciprocating blades.
Patent DE-4142145-A1 (DE)
Title: Sensor arrangement for electron beam machines - includes coaxial partial current sensor preceding total current sensor
Inventor: DOBMEIER ULRICH
IPC: H01J37/304
Filed: 1991-12-20
Abstract: Sensor arrangement is for electron beam machines with an up to 80 kW electron beam generator and an analysis unit supplied with the parameters registered by the sensor arrangement. The sensor arrangement comprises a total current sensor (10) and a preceding (in the direction of motion of the electrom stream) partial current sensor (11) located concentrically relative to the axis (21) of the total current sensor. To let through the electron beam, the partial current sensor has been provided with an opening (23) running coaxially with the beam axis. The opening (23) of the partial current sensor (11) is pref. symmetric, esp. of circular shape. Such an opening has an enlarged exit (26) for the electron beam. USE/ADVANTAGE - With electron beam machines in welding and surface treatment shops. In contrast to known sensor systems, it allows all essential parameters of such machines to be directly established.
Patent DE-4205059-A1 (DE)
Title: Self-tapping screw with two=stage cutting edge - has end of shank formed as drill bit with stepped cutting edges
Inventor: YAMAMOTO HISAYOSHI
IPC: F16B25/10
Filed: 1992-02-19
Abstract: The self-tapping screw tip of the shank (4) formed as a cone with a half-cone angle (theta 2). The conical end region merges with a transitional conical region with a hhalf-cone angle (theta 1). The transitional region merges with the cylindrical part of the shank. The latter has two diametrially opposite flutes (53) with cutting edges (55). The flutes merge with grooves (63, 73) formed in the conical region. The grooves also have cutting edges (65, 75). ADVANTAGE - Reduced axial force for the screw application.
Patent DE-4205121-A1 (DE)
Inventor: BAUER RUDOLF
IPC: A45D6/04
Filed: 1992-02-20
Abstract: A process for winding hair strands (20) for permanent waving is disclosed. The hair tips (21) in a hair strand (20) are secured in the area of a holding strip (1, 50) located near the head, below the upper edge (6) of the holding strip (1, 50), and the holding strip (1, 50) is wound together with the hair strand (20) secured thereto by means of a curling device (12, 13) which is then removed. The holding strip (1, 50) forms the curler (30, 110).
Patent DE-4211264-A1 (DE)
Title: Clockwork spring coupler with fixed and movable elements - has cable cavity in which peripheral rollers are fitted for cable motion control
Inventor: IDA YUICHI
IPC: B60R16/027
Filed: 1992-04-03
Abstract: Both elements have cylindrical units, the second one rotary w.r.t. the first one. A flexible cable (3) is retained in an annular cavity, formed by the two units, which is wound in a U-shaped section in opposite reuse on the two units. The cavity contains peripheral rollers, controlling the cable radial motion. Several rollers are fitted within the cavity in peripheral direction for controlling the cable radial movement. The rollers are interconnected by an appropriate element. Pref. two rollers in opposite configuration over the cable reversing section are fitted to both ends of the connecting element. The latter may be guided in the cavity peripheral direction. USE/ADVANTAGE - Car electric connector between stationary and movable part by cable, without cable bulging, but with its smooth rotary movement.