baber/WOPTO huggingface dataset:
Patent DE-2406007-A1 (DE)
Title: Electrodes cutting machine for spark erosion machines - has thin wire cutter with teeth and clamping jaws on reciprocating vertical slides
IPC: B23D57/00
Filed: 1974-02-08
Abstract: The machine cuts profiled tool electrodes for spark erosion machines from carbon, graphite or copper blocks. The machine cuts blanks of thickness of a few centimetres with high accuracy by means of thin, diamond impregnated wire. The wire is fed into the block so that the wire is straight at all times and cuts at high speed. The cutting wire is guided by a parallelogram linkage which has a stylus for following the copying template. The wire speed exceeds ten thousand revolutions per minute and hence high wire feed rates can be achieved without bending the wire. The clamping slide is reciprocated vertically for removing cuttings. The electrode cut by this method requires very little finishing work.
Patent DE-2415925-A1 (DE)
Title: Pig iron electr slag refining furnace - has 2-4 times larger internal dia. than electrode dia
Inventor: GRATSCHEW WLADIMIR A
IPC: F27D11/04
Filed: 1974-04-02
Abstract: In pig iron electro slag refining furnaces the internal dia. of the electrically conducting material lines cylindrical crucible is 2-4 times the dia. of non-consumable electrode introduced symmetrically into it. Method permits overheating of the melt and improves the refining process and casting.
Patent DE-2418202-A1 (DE)
Title: I.C. engine with main and ante combustion chambers - chambers have annular connecting channel through which fuel is injected
Inventor: ECKERT ROLF DIPL ING
IPC: F02B19/12
Filed: 1974-04-13
Abstract: The connecting channel between the ante chamber in the cylinder head and the main combustion chamber is covered by a porous insert section through which the fuel enters via an annular chamber fed from a feed pipe from the fuel pump. As a result of the pressure difference between the pump and the gas pressure in the connection channel fuel is drawn from the porous insert and carried off into the ante chamber during the compression stroke and ignited. The resulting pressure from the expanding gases stops the porous insert fuel flow until the pressure falls below that of the delivery pump. The fuel pressure in the annular chamber may be determined by a pressure limiting valve arranged as a non return valve in the fuel return passage.
Patent DE-2431935-A1 (DE)
Title: Ball bearing with pressed metal races - has races formed by splitting race edge and rolling to final size
Inventor: JELENAK HEINER ING GRAD
IPC: B21H1/12
Filed: 1974-07-03
Abstract: The races for light load bearing ball bearings, are made from sheet metal by pressing with the number of components reduced by splitting the edge for forming rolling element tracks. Hence only two race rings are used instead of four. The inner and outer race edge which contacts rolling elements is at first split by a rolling cutter edge under pressure while the race plate is clamped. The split gap is opened up and the track profile is rolled so that the sides are overlapped symmetrically by the race edges. The rolling bodies are readily fitted between inner and outer races by a cage which spaces the balls. One of the races can be divided for fitting, while the other is integral.
Patent DE-2433569-A1 (DE)
Title: Four high rolling stand - with automatic roll change system has guides for withdrawing roll assemblies from stand
Inventor: MARTEN HANS-FRIEDRICH
IPC: B21B31/10
Filed: 1974-07-12
Abstract: The lower roll assembly is deposited on the rails by guide rollers for changing the rolls. The upper assembly is displaced in relation to the lower one and supported. This arrangement is designed to simplify and facilitate automatic roll change of superposed roll assemblies. The rolls can be changed even if the roller material is still with in the rolling stand. The upper support roll assembly is provided with dismantling rails (8) and the drive end fo the upper working roll is provides with guide rollers (9) which engage with the guide rails. The drive end of the lower working rolls has facing pieces (10) which are retracted in the rest position.
Patent DE-2441398-A1 (DE)
Title: Securing catch for tipping car seat - with catch hinge in slot mounting for easy release
Inventor: THILL ALBERT
IPC: B60N2/10
Filed: 1974-08-29
Abstract: The car seat is tipped forward about a front axis and is secured onto the floor mounting by a catch (3) at the rear edge. The catch is pivoted in a U-shaped metal duct (11) with a shallow profile, and with the axle pin (2) mounted in horizontal slots (13) in the sides of the duct. a retaining spring (4) pulls the catch into the closed position so that its operating end (31) engages a slot (51) in the floor mounting. A release cable (6) pulls the catch to slide horizontally to disengage the seat. The catch is sloped (33) so that it locks automatically when the seat is dropped back.
Patent DE-2442728-A1 (DE)
Title: Clamping device esp. for coaxial cable plugs - designed for litz wires or similar inner conductors
Inventor: MARGREITER HANS
IPC: H01R13/646
Filed: 1974-09-06
Abstract: The clamping device for coaxial cable plugs has a connection part into whose channel the litz wire is axially inserted, and a clamping screw whose end tapers towards the channel's opposite wall. The channel wall opposite to the clamping screw is flat, and is limited by perpendicular clamping channel walls at least in the clamping screw area. The screw dia. is equal to, or greater than, the distance between the perpendicular walls. For an angled plug a tube shoulder made of metal can be provided, formed preferably as a single unit with the main tube, and situated in axially parallel relationship with the channel opening. A covering nut ensures a firm fixing.
Patent DE-2444798-A1 (DE)
Title: Tank containing transformer - consists of flat bottom tray and top cover with side walls reaching laminated core bottom yoke
Inventor: MANZINGER ERNST
IPC: H01F27/02
Filed: 1974-09-19
Abstract: The bottom tray (3) which forms part of the tank closely surrounds the bottom yoke of the iron core (1) and is rigidly joined to it after its compression, and takes up its pressure forces. The bottom tray (3) is fitted with bollards (6) on its two long sides, which are designed to support complete weight of the assembled transformer. The sidewalls (13) of the cover may be bent along straight lines so that they closely match the core (1) and the outline of the windings (9, 10). The curvature of the sidewalls produces a stressed skin effect so that they are self-supporting for vacuum and oil pressure.
Patent DE-2450455-A1 (DE)
Title: Articulated granular tipper vehicle - has light alloy body casting with oscillator generator to move load when tipped
Inventor: FEHRMANN HEINZ
IPC: B62D29/00
Filed: 1974-10-24
Abstract: The load carrying body also serves as vehicle chassis and is supported at the rear by a rear axle bogie (40) and carried at the front by a conventional turntable (15) and tractor (12). The rear suspension is preferably air bellows in order to simplify levelling problems. An oscillator generator (17) is fitted below the container floor which is inclined towards the rear opening door to make tipping easier. the distance between the side walls increases towards the rear and vertical reinforcement ribs are provided. The body is of one piece with the floor and side walls rounded at their junction to prevent the load sticking at the corners.
Patent DE-2451633-A1 (DE)
Title: Herbicidal tetrachloroethylidene-bis(isocyanide dichloride - prepd. by reacting the trichloro deriv. with excess chlorine under irradiation
Inventor: BECK GUNTHER DR
Filed: 1974-10-30
Abstract: Tetrachloroethylidene-bis(isocyanide dichloride) of formula (I): CCl3-CCl(-N=CCl2)2 (I) has herbicidal activity and is also used as an intermediate in the synthesis of flame- and temp. change-resistant man-made materials such as those on the basis of condensation products with di-or poly oles or amines. (I) are prepd. by leading an excess of Cl2 into a melt of cpd. (II) CCl3-CH(-N=CCl2)2 (II) at pref. 150-200 degrees C. The mixture is pref. irradiated at 300-600 600 m mu using e.g. a U.V.- or daylight lamp. Excess Cl2 is then removed and the mixture is fractionated. (II) may be prepd. in situ using trichloroethylidene-bis-formamide in the presence of acid chloride, esp. PCl5 and excess Cl2, opt. in inert solvent such as CCl4.
Patent DE-2455296-A1 (DE)
Title: Support for building - having wall plate fastenable to building, and stress-accommodating inserts between the wall plate and main support
Inventor: DOMAKOWSKI WOLFGANG
IPC: E04B2/64
Filed: 1974-11-22
Abstract: Support for buildings has a wall plate that can be fastened to the building, and seated on a support face of the support. The support face runs downwards in the direction of the support, and inserts extend in the plane of the plate between the support and the plate to accommodate movements caused by settling and thermal contraction/expansion. Rigid connection of the wall plate to the support is unnecessary. Good accommodation of various types of movement is provided so that no damage occurs to the wall plate or the support.
Patent DE-2501646-A1 (DE)
Title: Packing bag esp. for tobacco - has two walls joined together by W-folds and provided with separating cut (NL200776)
Inventor: TJADEN JAN
IPC: B65D30/00
Filed: 1975-01-16
Abstract: Packing bag esp., for tobacco includes two right angular walls which in an empty bag are positioned on top of each other and joined together along their side edges. Both walls (1, 2) are joined together by W-folds (8, 9) located along their edges (6, 7) at right angle to the separating cut (14). The W-folds (8, 9) in the region of the side edges (4, 5) have the fourth layer of their ends attached together. The separating cut (14) in one wall (2) is taken over its whole width and at the same time through both inner layers (10, 11 or 12, 13) of the W-fold and both walls (1, 2) are joined together along one side of the separating cut (14) and at least in the region of the W-folds (8, 9).
Patent DE-2504348-A1 (DE)
Title: Scaffolding for roof construction or repair - uses quick fastening brackets with hook at free ends of one flank
Inventor: GOUBAUD MICHEL
IPC: E04G3/22
Filed: 1975-02-03
Abstract: The scaffolding has brackets, each with two flanks. The first flank forms a strand for the scaffolding elements, and has an arm, with a hook at its free end. The second flank forms a support. There are separate anchoring elements, each with a flat base plate, for fastening to the roof, and a hooking-in aperture, to accommodate the hook of the bracket arm. The aperture is located at the front of a nose, which extends at a distance and parallel to the base plate of the anchoring element. The nose forms an integral extension of that plate. The hook is concave towards the free end of the bracket stand. Plate and nose are formed by opposite ends of a steel band, which is bent into a loop, for the nose. The loop has an upper part, forming the aperture, and a lower part, in the plate extension.
Patent DE-2518728-A1 (DE)
Title: Water insol. solvents recovery - using carbon bed adsorption with bed cooled and dried by exhaust
Inventor: SCHMITT ROLF DIETER
IPC: B01D53/04
Filed: 1975-04-26
Abstract: The continuous recovery of solvents which are insol. in water from air streams involves the adsorption of the solvent onto activated carbon and its subsequent stripping off with steam, using >=2 beds operated cyclically. After being steamed, a bed is cooled and dried by exhaust air from the other bed. To achieve this the system contains several multi-way valves. There are two-four-way valves, the first to direct the incoming air to one bed and the exhaust air to the other, the second to direct the exhaust either to atmosphere or to the inlet of the bed being cooled. There is also a three-way valve which can direct the final exhaust to atmosphere from either bed. Used in the recovery of water insol. solvents, such as trichlorethylene, perchlorethylene, methylene chloride, etc. The process efficiency is improved by drying and cooling the carbon bed after steaming. The system allows this to be done without an additional fan or the use of more power.
Patent DE-2519803-A1 (DE)
Title: Heat exchanger with ribbed heating pipes - has pipes forming heating meander supported by separator wall
Inventor: PAIKERT PAUL DR ING
IPC: F28D15/02
Filed: 1975-05-03
Abstract: The device for use in heat exchange systems, has a series of heating pipes or tubes which have externally ribbed construction, and which are at least partially filled with a liquid which is easy to vaporise and having a separating wall positioned such that it laterally divides the heat exchange tube region with two chambers which contain flowing media with differing temperatures, has the heating tubes or pipes (6) formed into a heating pipe meander (5) which is supported by means of the separator wall (4) and has a sealed end and is evacuated.
Patent DE-2521410-A1 (DE)
Title: Flywheel type regenerative brake for vehicles - has torsion spring between wheel and electromagnetic coupling to flywheels
Inventor: BRANDSTAEDTER OTTO DR
IPC: B60K6/10
Filed: 1975-05-14
Abstract: A wheel (10) of the vehicle has a friction coupling (11) to one end (12) of a torsional spring (13). The other end (17) of the spring is attached to a cylinder (18) which has three annular windings (19, 20, 21) each forming one half of an electromagnetic coupling. The other halves are formed by windings (22, 23, 24) on the ends of concentric cylinders projecting inside the spring cylinder and connected at their other ends to concentric annular flywheels (26, 27, 28). To brake the vehicle the flywheel with the smallest moment of inertia is coupled to the spring and wheel so that the wheel is retarded and the flywheel accelerated until the spring is unwound when the next flywheel is coupled if further braking is required. Acceleration takes place in the reverse order.
Patent DE-2527073-A1 (DE)
Title: High performance burner for gaseous fuels - has radial outlet nozzles for preheated gas and preheated air supply
Inventor: TSCHERNY ANATOLY ALEXEEWITSCH
IPC: F23D14/62
Filed: 1975-06-18
Abstract: The high performance burner for combustion of gaseous fuels, especially for combustion of gas in heating units is used e.g. for melting of refractories in the glass making industry. The burner generates a short nonoxidising flame by a system with modified distributor. The outlet end of the outside tube (4) of the gas distributor (2) has a number of uniformly distributed radial pipes (10). These nozzles are connected to the distributor channel (2) between two coaxial tubes (3, 4). The radial pipes have openings (11) whose diameter increases withthe distance from the gas distributor channel. This inside tube (3) for natural gas for increasing flame luminosity has at its outlet end a calibrated nozzle (5) with outlet (6). The gas fed into the burner is preheated in the preheater(17) and preheated combustion air is supplied through a duct (27).
Patent DE-2527128-A1 (DE)
Title: Pot shaped, adjustable, bearing for bridges and similar structures - has an interior pressure pad adjoining the cover
Inventor: BAYER KARL
IPC: E01D101/40
Filed: 1975-06-18
Abstract: A pot-shaped bearing whose vertical position may be reversibly adjusted has, in its interior, a pressure pad adjoining the cover of the bearing. In the "pot" there is, under the pressure pad, a membranous bladder whose edges bear snugly against the inner wall of the pot. Above the cover there is an insert of PTFE in contact with a slip metal-sheet. In order to adjust the vertical position, oil may be forced into the membraneous bladder and drained off again when the bearing is to be lowered. In construction of bridges and similar structures. In the claimed bearing construction, the pressure pad does not have to absorb all the forces acting on it; it can therefore be used with very heavy bridges. Also, as the pressure pad is enclosed in the pot, any rolling displacement by longitudinal movement of the bridge resting upon it, is prevented, so that its service life is considerably prolonged.
Patent DE-2530411-A1 (DE)
Title: Cold butt welding machine - esp. for joining thin thin aluminium strip used as a tubular sheath in data transmission cables
Inventor: KATZSCHNER WOLFGANG DR PHIL
IPC: B23K20/02
Filed: 1975-07-04
Abstract: Machine for the cold pressure butt welding of wire or strip by upsetting, using two pairs of clamping jaws to hold the two workpieces being joined. The jaws are provided with matching recesses to hold the workpieces and notches into which the upset metal can flow. A guide locates the jaws while they move together during welding. For clamping metal strip coated with plastic on one or both sides, the jaws are mounted on guide bars which provide the machine with rigidity and also permit a clamping pressure of up to 70 KN to be applied by separate hydraulic cylinders to each pair of jaws. Another hydraulic cylinder provides the welding pressure via wedges on the jaws. Used for cold butt welding two Al strips with cross-section 50 x 0.2 mm, coated on both sides with 50 mu m of plastic. The very long strip obtd. is bent to form a very long tube with overlapping edges round a cable core. Polythene is then extruded round the coated Al tube, the finished cable being used for data transmission.
Patent DE-2531391-A1 (DE)
Title: Convertor with controlled valves - has symmetrical switches and diode bridge network
Inventor: LINDEN WILHELM DIPL ING
IPC: H02M7/515
Filed: 1975-07-14
Abstract: The device has a controlled bridge connected valve network and a bridge connected recovery diode network. The mid-point of the diode network is connected to the corresponding mid-point of the valve network. The d.c. voltage inputs of the convertor are connected to the two potentials of the d.c. supply via symmetrically arranged electronic switches. There switches are transistors, thyristors or d.c. current regulators, the recovery diodes being connected between the d.c. supply voltage in front of the electronic switches.
Patent DE-2532392-A1 (DE)
Title: Improving softness, suppleness and strength of pelt and leather - by treatment in organic solvents contg. hydrophilic surfactants and opt. modified polyhydric alcohols
Inventor: GRAF HANS-DIETER ING GRAD
IPC: B29C49/00
Filed: 1975-07-19
Abstract: The fur pelts or leather goods are treated in water-immiscible organic solvents, e.g. chlorohydrocarbons andfluorochlorohydrocarbons, with 1-20 wt.%, w.r.t. goods, of a mixt. of (1) hydrophilic tensides and (2) di- and polyhydric alcohols which are opt. modified at OH-function by esterification with inorganic gps. or by introduction of a COOH gp. The goods may be treated in dry condition, but best effects are obtd. with wet materials contg. 80% water. When treating dry goods, mixt. of (1) and (2) is preliminarily dissolved in water. Treatment can take 5-30 min. Substances (1) and (2) used are completely absorbed by the treated goods. In pelts, hair structure is fully maintained.
Patent DE-2540188-A1 (DE)
Title: Banding strap sealing mechanism - has recesses in claws bending seal ends round strap and guiding notching knives
Inventor: HELFF JOACHIM
IPC: B65B13/34
Filed: 1975-09-10
Abstract: The mechanism applies seals to banding straps. The ends (5) of the seal are bent round the strap by means of recesses (4) in the sealing claws (3), which move in a direction roughly parallel to the strap surface and across it. The notching knives (7) are guided in the claws, and are actuated by the movement of the toggle linkage (1) causing the pivoting movement of the claws. There can be rollers (8) on the linkage, acting against the knives, which are secured by spring-loaded locking balls (9). There can also be a stationary guide rib (10) between the claws.
Patent DE-2541694-A1 (DE)
Title: Electric motor with axial airgap - has annular armature stack with toroidal winding with excitation system opposite armature end face
Inventor: VOLKRODT WOLFGANG DR ING
IPC: H02K23/54
Filed: 1975-09-18
Abstract: Electric motor having an axial air-gap and d.c. flux field excitation is fitted with a rotatable annular armature stack having a toroidal winding and made of a ferromagnetic material. At least one excitation system is arranged opposite one end face of the armature to create a d.c. flux field that enters the armature stack in an axial direction. The toroidal wound wires only be immediately adjacent or contiguous to one another on the outer periphery or on the end-face of the armature and their surface is bared to form a commutator against which the carbon brushes are located in the zones of the pole-changes or reversals.
Patent DE-2549716-A1 (DE)
Title: Pivoting ramp with drive over plate - has hinge at ramp end with U-shaped seat for plate edge
Inventor: SCHNORR KURT
IPC: B65G69/28
Filed: 1975-11-06
Abstract: The pivoting ramp (1) has a drive-over plate (3) tipping to an approximately vertical position, and hinged to the free end of the pivoting ramp (1) on which it rests with about half of its width. Below the pivoting ramp (1) is mounted on the ramp frame (4) an open U-profile which provides a seat for the lower edge (6) of the vertical tipped drive-over plate (3). The part (3a) of the drive-over plate (3) which projects over the free end (2) of the pivoting ramp (1) is heavier than the part (3b) resting on the pivoting ramp. When the vehicle no longer rests on the drive-over plate, it swings back down below.
Patent DE-2553869-A1 (DE)
Title: Image coding system for three:dimensional objects - forms two images using coherent light sources and combines them as positive and negative
Inventor: KLOTZ ERHARD
IPC: G03H1/06
Filed: 1975-11-29
Abstract: The image of a three dimensional object is recorded twice, using differently oriented coherent light sources. Each image is used to form a negative. The negative of each image is combined with the positive of the other using a hologram, obtained via a reference wave and several light sources and a pin hole camera for recovering the coordinates of the image points. The combined images are multiplied and superimposed on a common substrate. The coded images are decoded using two synchronised varifocal lenses. The two coded images may be formed using x-rays on two separate films, with the negatives formed by a contact process.
Patent DE-2554705-A1 (DE)
Title: Coupling technique for LED or laser to fibre - has optical transformer in form of horn reflector and sheathed core fibre with rotational symmetry
Inventor: TIMMERMANN CHRISTIAN DR ING
IPC: G02B6/42
Filed: 1975-12-05
Abstract: The optical coupling method permits a light emitting diode or laser beam source to be connected with an optical fibre by the use of an optical transformer. A horn shaped reflector may be used to convert a rectangular profile light source to a circular profile. The reflector may be used as a device to produce a lobe with a circular cross-section to connect with from a cylinder a cylindrical fibre or may produce an elliptical section profile to connect from the rectangular form. For a laser coupling the relevant equations are of the type dx. sin (psi)X 2 a no square root 2. delta. f; dy. sin (psi)y 2 a no square root 2. delta. f. Where dx. dy are the aperture coordinates, 2a is the diameter of the optical fibre, no is the refractive index, (psi)x, y are the aperture angles and delta. f. is the refractive index differential ratio.
Patent DE-2558302-A1 (DE)
Title: Tape form striking surface for safety matches - has perforations which increase safety by permitting separate storage of matches
Inventor: KASSAU HORST
IPC: F23Q13/00
Filed: 1975-12-23
Abstract: The striking surface for safety matches is in tape form and with perforations. It is primarily intended to permit separate storage of the matches and the striking surfaces in the interests of safety for children. The tape is made up in a reel and is perforated in such a way that matches can be threaded through it, being ignited by pulling out. To raise the safety level further, a length of tape sufficient for only a single match can be torn off the reel.