baber/WOPTO huggingface dataset:
Patent DE-2437411-A1 (DE)
Title: High density low permeability precast concrete sections - manufactured from vacuum de-airing chamber and vacuum casting system
Inventor: SAKURAI JIRO
IPC: B28B1/10
Filed: 1974-08-02
Abstract: A system for production of precast concrete sections of high density and low permeability uses a concrete mixture with a low water/cement ratio which is pumped into a pressure tight sealed chamber. The pressure tight sealed chamber is then evacuated and the air trapped within the concrete mix is removed from the mix. The mixture is then transferred to the object mould within the pressure tight sealed chamber and the mixture is then allowed to set within the mould to a very large extent whilst still under vacuum. Moulded material can then be removed from the vacuum chamber. Suitable water/cement ratios have up to 38% water.
Patent DE-2437997-A1 (DE)
Title: Core shooting machine for mfg. hollow sand cores - with simultaneous filling of two split core boxes contg. mandrels
Inventor: SCHEMMANN BERNDT
IPC: B22C15/24
Filed: 1974-08-07
Abstract: Core-shooting machine for mfg. hollow cores in core boxes split along the shooting direction and contng. a mandrel, one box-half being provided with a clamping and opening device; after extn. of the mandrel, the moving box-half is retracted and lays the core on a conveyor, if necessary after a swivel motion. The novelty is that the shooter head simultaneously fills two or more core boxes located eccentrically to the axis of the shooter head whereas the mandrel extractor is mounted on the shooter head axis and carries the mandrels on a traverse; and that the clamping and opening device deposits the cores on separate conveyors.
Patent DE-2443621-A1 (DE)
Title: Folding feet for warning triangle - with length of feet equal to one side and pivoted each end
Inventor: WIEDERRECHT REINHARD
IPC: B60Q7/00
Filed: 1974-09-12
Abstract: The warning triangle is fitted with a fixed support bar (24) spaced along the bottom of the base, and fitted with turned down support feet at each end. Two more bars are fitted, each hinged at one end of the base so that they can be turned into a support position in opposite directions. Each bar (21, 29) is fitted with similar turned down support feet (31) at their end and are swung through 45 deg. so that they support for the triangle forms a Z outline with long limbs for stability. For the storage position the pivots are provided with sprung C-type clips to secure the bars in a parallel position.
Patent DE-2444505-A1 (DE)
Title: Machine for punching thin film or paper - has lifting drive for the punch which falls under its own weight
Inventor: KLEMM GERHARD ING GRAD
IPC: B26F1/40
Filed: 1974-09-18
Abstract: The press is used for punching of thin material such as paper, aluminium and plastic foil, especially for material thicknesses less than one millimetre. High dropping speeds are used for carrying out the punching work. The press has lightweight construction and only minimum energy is used for the punching process. The punching machine beam is provided with a lifting mechanism (5) which releases the punching machine beam after reaching its upper position for dropping on the baseplate. The lifting mechanism actuates only the vertical upwards movement of the beam and the downwards movement of this beam is controlled by a vertical sliding guide.
Patent DE-2454291-A1 (DE)
Title: Two-line subscriber telephone connections - uses two Zener diodes in series opposition whose voltage is max of safety contact value
Inventor: KANNE ELMAR
IPC: H04M19/00
Filed: 1974-11-15
Abstract: The two-line subscriber telephone connection has its damping reduced by dipoles with a characteristic, having a region of negative differential resistance. At the connection end facing the subscribe telephone apparatus (1) the two lines are interconnected by two zener diodes (31, 32) in series opposition. The zener voltage of the diodes (Z1, Z2) may be equal to or less than the subscriber telephone safe contact voltage, preferably about 56 V. The arrangement is in particular directed to a two-terminal network of which the characteristic has a region of negative differential resistance, which may extend over long distances and operate with remote direct current supplies.
Patent DE-2457522-A1 (DE)
Title: Junction box for community antenna - signal split in a least two parts, for reception of broadcast and TV signals
Inventor: WORCH HERMANN
IPC: H03H7/48
Filed: 1974-12-05
Abstract: A junction box for a communal aerial has at least one transformer receiving the signal, with two outputs connected to an h.f. line each, carrying a certain part of the h.f. signal energy. In order to transmit uniformly a signal frequency band from 0.1 to 1000 MHz from the transformer (1) input (4) to the corresponding h.f. line (5), and/or between each output (8, 9) and the corresponding h.f. line (10), each line (10) has a resistor (6, 7), shunted by a capacitor (11, 12) whose impedance is low for frequencies above 40 MHz.
Patent DE-2457613-A1 (DE)
Title: Testing dimensional accuracy of components - involves using projector in whose light cone opaque components are placed
Inventor: HEIMUELLER JOST
IPC: G02B9/08
Filed: 1974-12-05
Abstract: Component shadows are compared with a standard drawing. Light sensitive diodes are provided at points on the shadow edge (A) to be measured; when dimension are correct, diodes are partly illuminated; signals are stored as nominal values in a first store; output signals obtained during component testing are compared with the stored values, and also signals from opposite points are compared with each other, and if necessary adjusted to each other; if measured signals differ beyond a certain tolerance, a fault signal is delivered and/or the component is rejected. The projector produces a cone of light so that the shadow of the component may be bigger than the component itself.
Patent DE-2458189-A1 (DE)
Title: Wedge-type tree-feller - has movable wedge member movable toward free end parts, inserted in saw cut, of sheet metal guide elements
Inventor: MILLING GUNNAR STURE
IPC: A01G23/099
Filed: 1974-12-09
Abstract: Wedge-type tree-feller can be inserted partially into a horizontal saw-cut in the tree. A longitudinal housing has a movable wedge member at one end, and is connected to two opposed, longitudinally-extending sheet metal guide elements whose free end parts can be inserted into the saw-cut of the tree. The wedge member, when moved toward the guide elements free end parts, is arranged and constructed so that is presses these elements by wedge action against the cut faces of the saw-cut. The apparatus is more usable than the conventional steel wedge and does not have their disadvantages.
Patent DE-2459314-A1 (DE)
Title: Measuring devices checking arrangement for potentiometer sources - has cable drum with cable and integral adjustable resistance
Inventor: BORM EGON
IPC: G01R31/50
Filed: 1974-12-14
Abstract: Arrangement for checking measuring devices for potentiometer sources, for example, cooling water temperature, fuel supply, enabling the measuring devices to be separated from their momentary potentiometer source. The control of the respective measuring device is through a built-in provision of the arrangement. A cab drum with a connecting cable for the measuring device has at least one adjustable resistance integrally formed in it and this is connected to inner ends of the lead to the cable. The frame for the drum and the enclosed resistance may have feet, hand-grip and rotatable enclosing outer covers for the drum.
Patent DE-2460746-A1 (DE)
Title: Pressure vessel metallic seal of 'U' section - the open end of which faces the space to be sealed
Inventor: KOSCHEL KURT
IPC: F16J15/08
Filed: 1974-12-21
Abstract: The seal is fitted between two faces which are to be sealed and lies in annular grooves of semi-circular section which are cut in the two faces. The section of the sealing ring is basically U shaped, but has rounded corners at the base of the U and at the ends of the legs of the U. The radius of these corners is so that when the seal is mounted in the annular grooves, the radiused corners lie against the faces of the grooves of semi circular section. The radius of the section of the grooves is equal to the radius of the corners on the seal section. The seal is partic effective with fluctuating pressure conditions.
Patent DE-2503253-A1 (DE)
Title: Miniature hearing aid worn behind the ear - has a two-part case and may be used in conjunction with spectacles
Inventor: TAUTZ GERHARD
IPC: H04R25/00
Filed: 1975-01-28
Abstract: The hearing air assembly comprises a battery holder rotatable about an axis perpendicular to the case halves' junction plane. It can be in one of three positions, entirely in the case, partly inside and outside, or entirely outside. In the latter position the battery can be exchanged. Battery movement between first and second position switches supply current on and off. Battery holdr can be locked in its first and second position. two recesses (9, 10) are made on the inside of one of the case halves (1, 2) in which a resilient projection (8) of the battery holder (5) falls in its first and second position.
Patent DE-2504499-A1 (DE)
Title: Metal-encased polyphase switch gear - has cct breaker and disconnector coaxial for each phase
Inventor: HEUTSCHI HANS
IPC: H02B13/02
Filed: 1975-02-04
Abstract: The metal-encased polyphase switch gear has a circuit breaker and a disconnector mounted coaxially for each phase. The circuit breakers and disconnectors are mounted parallel to one another in a common housing. The operating rods for the circuit breakers and disconnectors pass through one another telescopically and are linked at their ends each to a separate operating shaft. The operating shafts are parallel to one another and at right angles to the tubular housing's axis. One shaft has a forked sliding-pin linkage and the other shaft a simple sliding-pin linkage which is fixed to the forked linkage.
Patent DE-2505612-A1 (DE)
Title: Creep resisting aluminium alloy - for cylinder heads of internal combustion engines
Inventor: ERDMANN-JESNITZER FRIEDRICH PR
IPC: C22C32/00
Filed: 1975-02-11
Abstract: The treatment for producing the creep resisting Al alloy, which may be of wrought or cast type, comprises producing in the first instance an Al master alloy cont. a nitride and/or a N cpd. by melting and adding this master alloy to the main component of the alloy in the molten state, after which ZR and/or Ti are added to the melt. The main component of the alloy may be an Al(alloy)melt. The creep resisting alloy is suitable for cylinder heads of internal combustion engines.
Patent DE-2510857-A1 (DE)
Title: Single-seat valve with controllable pressure unloading - has pipe with control valve connecting output and unloading chambers
Inventor: ERNST GUENTHER DIPL PHYS
IPC: F16K3/34
Filed: 1975-03-12
Abstract: The valve has a throttle body actuated by a valve rod and merging into a pressure-relief plunger working in a cylindrical guide. The plunger end face forms the movable wall of an unloading pressure chamber. The output pressure acts on this face via a bypass, formed by a pipe (18) contg. a control valve (17) and connecting the output pressure chamber (6) and the unloading pressure chamber (14). The latter can be divided into a first chamber (14a) closed by the plunger (11), and a second one (14b) connected via the partly-hollow valve rod (4) to the output pressure chamber. The two chambers are connected to each other by the pipe and control valve.
Patent DE-2512063-A1 (DE)
Title: Traction control for multiple track vehicle - has DC control drive motors linked to spread torque evenly over available tracks
Inventor: KOOPMANN KLAUS DIPL ING
IPC: E02F9/22
Filed: 1975-03-19
Abstract: The large vehicle is propelled on multiple tracks arranged in groups to spread the load. Each group is driven by DC motors in series. Each group has a current inverter directly coupled to the pole circuits and a current inverter connected in reverse to the field coils. The pole-and field currents are separately controlled, while a common speed control ensures that the available torque is divided evenly over the tracks. If one track spins or if one drive shaft is sheared then the total torque is divided amongst the remaining tracks. This enables the large vehicle to be controlled with simple servo steering controls.
Patent DE-2516845-A1 (DE)
Title: Intersection piece for panel ceiling construction - has four downwardly open channel section arms at right angles
Inventor: SCHLUETER WOLFRAM
IPC: E04B9/14
Filed: 1975-04-17
Abstract: the intersection piece is for use on ceilings of panel construction where channel sections facing upwards form angles one with another and on their lower edges have flanges to which ceiling tiles are fixed. The channel sections stop short at the points of intersection and are joined together by intersection pieces. Each intersection piece comprises a fairly long channel open at the bottom and two shorter channels open at the bottom, which join together to form a cruciform. These channels can beslid into the ends of the main channel sections and so form an intersection of four channels at right angles.
Patent DE-2519487-A1 (DE)
Title: First gas scrubbing stage - for gasification under pressure uses tar made viscous by tar oil addition for injection
Inventor: HOELTER HEINZ
IPC: C10K1/02
Filed: 1975-05-02
Abstract: The parent patent describes gas produced by coal gasification under pressure is passed through a heat exchanger where high-boiling tar oil is sprayed to prevent incrustations. H2S is absorbed by injection of an alkaline or alkaline earth powder in a venturi stage. In this addn. the gases are passed through a pre-scrubber, using tar with slight additions of tar oil to keep it viscous. The powder for the H2S absorption is now injected after the wash oil process has been completed. This combines some of the wash tar with the tar in the crude gas and improves the heat balance. The tar spraying in the scrubbing tank prevents incrustations. The heat recovery from the tar wash circuit saves the necessity for a gas precooler.
Patent DE-2529477-A1 (DE)
Title: Up-and-over garage door - has spring compensated guide leverage using gas cushion for spring
IPC: E05F3/02
Filed: 1975-07-02
Abstract: The up-and-over type garage door has a guide control in the form of a gas cushion as operating spring. The leaf (4) of the garage door is suspended on top by roller suspension (5) running in a horizontal rail (3) fitted to the garage ceiling. At the lower part the leaf (4) has a pivot (6) on a short pedestal to the leaf inner surface. It is linked to a two-armed lever (7) which swivels around point (8) fitted to the door frame (2). The other end of lever (7) is connected to the lower end of gas cushion (1a), whereas the other end is fitted to the bracket (11) with an inclined slot (12, 13). Part (12) has a slight inclination suitable for the easy initial installation of the gas cushion. The other part has a steeper inclination serving for the stable end position of the door.
Patent DE-2529955-A1 (DE)
Title: Filmor paper setting and cutting tweezers - have handle part arranged at steep angle to horizontal
Inventor: SCHMIDT JOACHIM-HANS
IPC: B25B9/02
Filed: 1975-07-04
Abstract: The tweezers are used for setting and putting together thin bits of paper, film and similar. The handle part of the tweezers are arranged in a steep angle to the horizontal with an average inclination similar to that of a pen during writing. The gripping end is positioning flat against the working surface. The inclination of the handle part is between 45 and 60 degrees. The gripping end is carried out thin and the tips are sharpened. The gripping ends can be shaped in various ways to suit the kind of work they are intented for. There is a suitable type of tweezers for left handed people.
Patent DE-2531142-A1 (DE)
Title: Solderability tester which lowers PCB into solder bath - is used to measure time for solder to rise in holes
Inventor: LEIBFRIED WOLFGANG DIPL PHYS
IPC: H05K3/42
Filed: 1975-07-11
Abstract: The solderability tester measures the ease with which the metal surfaces of a PCB can be soldered by measuring the time for solder to rise through metal-coated holes in the board. The board (10) is supported above the solder bath (14) and lowered into it in clearly defined steps. A pointed probe (18) is mounted in the hole and is connected to an instrument (20) that shows when the solder touches the tip of the probe. The time between lowering the board and selder/probe contact being established gives the rate at which solder 'tins' the metal surface.
Patent DE-2541527-A1 (DE)
Title: Hydrogel-forming polymers with fluoraliphatic side chains - for use as contact lenses and membranes
Inventor: ENSOR ROY
IPC: C08F8/14
Filed: 1975-09-17
Abstract: Hydrogel-forming (co)polymers contg. fluoraliphatic side-chains, are prepd. by polymerising >=1 monomer contg. such side-chains, or gps. which allow their subsequent introduction e.g. by esterificn. with a fluorinated aliphatic acid or deriv. The (co)polymers are used to mfr. contact lenses and membranes for sepn. processes, esp. those requiring transport of large molecules. Contact lenses can be made with very high water content, up to 60-80 wt%, and good oxygen permeability, together with an advancing contact angle with water of 40-70 degrees (50-60 degrees), which reduces bacterial contamination. Membranes have good mechanical strength with a broad distribution of water pore sizes.
Patent DE-2542929-A1 (DE)
Title: Multilayer metal strip prodn. - by welding high speed steel contg. cerium onto a backing trip
Inventor: EKEROT SVEN DIPL PHYS
IPC: B32B15/01
Filed: 1975-09-26
Abstract: In the prodn. of a multi-layer metal strip by cementing pref. by electron beam welding at least one strip of high speed steel of compsn. 0.60-1.30% C, 3.0-5.0% Cr, 1.0-10% Mo, 1.0-20% W, up to 12% Co, 0.5-4.0% V, balance Fe and normal impurities, to a carrier strip, the improvement comprises the addition of 0.005-0.5% Ce to the high speed steel, possibly as misch metal. The strip may be used in the prodn. of saw blades e.g. for hacksaws. The Ce addition permits higher welding speeds to be used, with consequent improved melt flow, gives upper and lower weld seam surfaces of more uniform appearance, and weld zones with good property retention (primarily hot ductility and transverse properties.).
Patent DE-2548601-A1 (DE)
Title: Milking unit with filter chamber and pump - incorporates pipe joined to pump by sponge inlet socket vacuum pipe return valve and three-way valve
Inventor: KEHM ERWIN
IPC: A01J5/00
Filed: 1975-10-30
Abstract: The milk pump (1) sucks the milk out of the container (2) and forces it through a pipe (3) into the milk filter-chamber from where the milk flows through the outlet into the tank. During the milking, the container is connected to the vacuum pipe through a separator (7) and three-way valve (8). When milking has finished, the sponge inlet-socket (10) is opened so that air penetrates from the outside into the pipe (3). At the same time, the connecting-pipe (11) is joined to the vacuum pipe (9) via the three-way valve (8). The sponge (12) inserted into the inlet socket (10) before milking is sucked by the air rushing into the pipe (3) into the milk filter-compartment (4).
Patent DE-2556093-A1 (DE)
Title: Storage cupboard with adjustable level compartments - has drawers raised or lowered by mechanical drive system with guide rods for drawer location
Inventor: NELL KUNO
IPC: A47B51/00
Filed: 1975-12-12
Abstract: The cupboard has compartments capable of being lifted or lowered, and drawers for drawings and files. the compartments at high level are moved after their withdrawal to a level suitable for the user. Rods fitted to the cupboard side walls using a chain or geared belt drive and are returned from there to their starting position. Individual or several compartments (2) are made to be lowered after their withdrawal from the cupboard (1) to an accessible height. They have guide rods which after use are returned to their starting position. Guide ledges are fitted which have threaded forks fitting into the guide rods during the withdrawal of the compartments.
Patent DE-2556174-A1 (DE)
Title: Guide supports for focal plane shutter - comprises two metal foils in lateral grooves controlled by reel drive
Inventor: SALZMANN GERHARD
IPC: G03B9/32
Filed: 1975-12-13
Abstract: The focal plane shutter has two separate metal foils, each wound on a reel (5, 13) on one side of the exposure window. The foils are unwound from the reels to slide between upper and lower slots (4, 4a) without any cables or bands having to pull the foils into the grooves. The shutter does not require any other controls other than the drives to the reels. The foils are self supporting in the slots with the leading foil curved around its reel (5) while the trailing foil (12) is normally straight and is kept on its reel (13) by outside rollers (18).
Patent DE-2603341-A1 (DE)
Title: Axis symmetrical electron gun - has capillary metal emitter cathode surrounded by focussing Wehnelt cylindrical electrode
Inventor: WEINZIERL FRANZ DIPL ING
IPC: H01J3/02
Filed: 1976-01-29
Abstract: The axis symmetrical electron gun has a capillary metal emitter cathode, an anode and a focussing Wehnelt electrode. The latter surrounds the dispenser cathode to which it is electrically and mechanically connected. It has a projecting focussing ring between the cathode and anode. The gun comprises a cathode (1), a Wehnelt cylinder (2) and an attracting anode (3). The cathode (1) has a calotte-shaped emission disc (4) held by a supporting cylinder (5). The Wehnelt surrounds the cathode and contains at its end lying between the cathode and anode a ring projection (7) mounted symmetrical about the axis (6).
Patent DE-2607391-A1 (DE)
Title: Cutting device for web issuing from print machine - comprises independent unit having pivotal knife controlled by data signals
Inventor: NEUMANN DIETER
IPC: B41J11/70
Filed: 1976-02-24
Abstract: Cutting device for web issuing from ticket or receipt printing mechanism comprises independent unit capable of being driven by data signals in registration with the printed matter. The unit has a pivotal knife (19a) actuated by an electromagnet (6). A further electromagnet (38) is actuable to introduce a stop (21) into the path of the knife. This limits the angle of movement of the knife and effects a partial cut of the web. The knife is in the form of a double-ended lever, one end defining the knife itself, the other end being connected to the magnets.
Patent DE-2610443-A1 (DE)
Title: Warning signal for emergency vehicle - has directional radio beam to overide radios in other vehicles
Inventor: PUTTKAMER NIKOLAUS VON
IPC: G08B1/08
Filed: 1976-03-12
Abstract: The emergency vehicle is fitted with a narrow beam radio transmitter to operate with the optic and acoustic warning signal. The beam is directed at the traffic ahead and has a number of carrier frequencies to cover every possible radio station. The frequencies are modulated with the warning tone so that any driver with a car radio switched on can easily hear the warning tone, no matter how loud the radio is switched on. The transmitter can be ultrasonic, infrared or radio, with suitable decoding equipment in every car. The warning signal is then fed into the output stage of the car radio. Whether it is switched on or not. the system can be extended to switch the traffic signal ahead of the vehicle.