baber/WOPTO huggingface dataset:
Patent DE-2733650-A1 (DE)
Title: Body organ gas insufflation instrument - delivers gas at constant pressure and cuts off when desired value is reached
Inventor: FUCHS HUBERT G ING GRAD
IPC: A61M31/00
Filed: 1977-07-22
Abstract: The insufflation instrument introduces metered quantities of a gas such as CO2 or N2O into organs for examination or operation purposes. The gas is delivered at constant pressure, and the actual value of the gas pressure in the organs effect the cut-off of the gas supply via a control circuit when the desired value is reached. Conversely, it cuts in the gas supply again when the actual value falls below the desired one. The control circuit can be pneumatic, with a pneumatic actuator. The desired-value emitter can be set by turning a knob on the front of the housing.
Patent DE-2733829-A1 (DE)
Title: Forklift truck for bins - has fork flanges to grip under horizontal flanges around bins
Inventor: ROEGER HEINRICH
IPC: B62B3/06
Filed: 1977-07-27
Abstract: The fork lift truck has two parallel forks on which are supported angles rails (9) to tilt about longitudinal axes and grip under the flanged lips of the bins. The rear ends of the forks are joined by cross members for security. The bins are carried in a low position for a low centre of gravity. The truck can easily lift and lower the bins from the ground.
Patent DE-2737839-A1 (DE)
Title: Water valve for sanitary fitting - has seal and rotation locking unit with lobed transition sections
Inventor: GRASSE KLAUS-PETER ING GRAD
IPC: F16K1/36
Filed: 1977-08-23
Abstract: The valve upper part is used in sanitary fittings and has a head with an internal rotating adjusting spindle for generating axial movements, with a seal carrier within the head. The rotating locking section and the sealing section form a continuous constant straight cylinder with constant cross section. In the circumferential region of adjacent section are provided lobed transitions. A sealing arrangement (27, 28) is provided directly in the region of the rotation preventing section. The guide faces have large radius lobes and the transitions between them small radius lobes.
Patent DE-2741858-A1 (DE)
Title: HV rectifier prodn. system - winds conductors off reels, and diodes are soldered in place before cutting conductors to length
Inventor: BEHN REINHARD DIPL-PHYS
IPC: H01L25/07
Filed: 1977-09-16
Abstract: The rectifier has diodes connected in series, combined in a constructional unit. It consists of several semiconductor elements, with tappings for external contacting of the semiconductor elements, so that a stack of semiconductor elements is produced, with the tappings connected mechanically and electrically with the semiconductor elements. There are parallel conductors which are wound off one or several reels; conductors (4) are held in a former at a distance from each other; diodes are inserted coaxially to each other between the conductors and soldered to them. The conductors are then cut off at a required length.
Patent DE-2743596-A1 (DE)
Title: Corrosion inhibitor for concrete and steel concrete vessels - esp. for collecting sewage comprising thio:bacteria inhibitor
Inventor: PILZ DIETRICH DIPL ING
IPC: C04B22/06
Filed: 1977-09-28
Abstract: The inhibitor is mixed with the water used for making the cement, and consists of 250-2500 mg/1 CuSO4.5H2O.Ag2SO4, NaHAsO4.7H2O, SeO2, Na2TeO3, 5-25 mg/1 Na2MoO4.2H2O, NiSO4, 6H2O 10-55 mg/1 dinitrophenol (2,4-DN P), fluoroacetate (C2H2FNaO2), phenylalanine (C9H11NO2), Na pyruvate (CH3COCOONa), oxalacetate (C4H4O5), 10-125 mg/1 N-ethylmaleimide (NEM)(C6H7NO2HgCl2, p-chloromercuric-benzoate (CMB)(C7H5ClHgO2) ar/or 150-200 mg/1 iodoacetamide (C3H4INO). The vessels (pref. (steel)concrete) are used esp. for collecting sewage. The additives prevents the formation o H2SO4 from H2S by killing or retarding the growth of thiobacteria.
Patent DE-2751081-A1 (DE)
Title: Piece goods conveyor system with points - includes roller stations parallel to each other with elastic spacers between adjoining stations
Inventor: MATTAUCH OSKAR
IPC: B65G47/64
Filed: 1977-11-16
Abstract: Conveyor installation for piece goods, includes conveyors in the form of roller tracks, band conveyors, slides etc. The installation includes several roller stations following each other in the direction of conveyor movement and parallel to each other which are made in a support construction corresponding to a pre-determined conveyor track. At least one elastic spacer (23) is positioned between adjoining roller stations (7', 7). Each spacer is pre-tensioned and made as spiral springs.
Patent DE-2755165-A1 (DE)
Title: Refining cast iron - by blowing oxygen into a converter full of molten iron both above and below the melt level
Inventor: BROTZMANN KARL DR ING
IPC: C21C5/28
Filed: 1977-12-10
Abstract: Method of improving the heat balance and thus increasing the amt. of scrap that can be used in refining cast iron in a converter having oxygen tungenes below the bath surface with protective sheaths, and oxygen blowing devices above the bath level, is claimed in which during a large part of the refining period, 20-80% of the O2 is fed into the bath by jets directed toward the bath surface from above the bath surface, and the rest is blown in below the surface. The amount of O2 blown onto the surface from above is varied during the course of the refining. The properties of the steel produced are unaltered, despite the improved heat balance and the increased use of scrap. The axis of the free jets w.r.t. the surface of the bath make an angle with the axis of rotation of the converter of >35(>45) degrees.
Patent DE-2759018-A1 (DE)
Title: Stable easily assembled tent frame with tubular rods - has interfitting connection between joints through brackets and set of retaining hoops
Inventor: GUELDENER FRITZ
IPC: E04H15/34
Filed: 1977-12-30
Abstract: The tent frame consists of tubular articulated ties and purlins which are fitted together at ridge and eave joints (1, 2). The eave joints are forked to take the articulated ties (3) and they are provided on both side faces (7) with retaining hoops (8) which can be coupled and locked with push-on brackets (11) provided at the ends of the purlins (9). These push-on brackets (11) are pref. designed to pass through the retaining hoops (8) wherein a locking bolt (13) with ratchets (15, 16) engage in the bracket (11). Although manufacturing costs are reduced the joints are quite stable, and can withstand high winds etc.
Patent DE-2802082-A1 (DE)
Title: Mould giving injection mouldings with clean surfaces - comprising press with system of three plates to form sub-cavities before final impressions
IPC: B29C45/26
Filed: 1978-01-18
Abstract: A mould, for injection moulding articles with clean surfaces and which have tapered sides (over at least part) has three moving plates and therefore two split planes. The first has a number of mould impressions, and the second has a cluster of sub-cavities connected with the injection hole on one side and the mould impressions on the other. When moulding these sub-cavities produce a waste sprue. The sub-cavities between the middle and back plates are connected directly with the injector opening in the front plate via a hole in the middle plate. The set of mould impressions is formed between the front and middle plates. The flow duct from the sub-cavities leads to the mould impressions where an ejector ends and where the mouldings end at their smaller section, that section being widest at the front split plane between the plates. A simple low-cost method of producing clean mouldings, i.e. without surface flaws requiring dressing, is provided.
Patent DE-2813339-A1 (DE)
Title: Monitoring of welding parameters by electronic appts. - which includes comparator logic circuit for extremely close control of parameters
Inventor: DILTHEY ULRICH DR
IPC: B23K9/095
Filed: 1978-03-28
Abstract: The parameters are e.g. welding current, arc voltage, welding speed, temp. etc.; and the appts. includes a meter for the parameter plus a visual display indicator for the actual value (Sa), which is also fed to a comparator which has adjustable inputs supplying max. and min. desired values (Sref). For adjusting higher and lower max. and min. values of Sref, the appts. includes a multiplexer and four adjusting devices connected to the comparator together with an evaluation circuit contg. logic elements, and a time delay device. Used esp. in building reactors, where the deviation of welding parameters from the desired limits of Sref can be recorded, e.g. via a pen recorder so X-ray or other tests can be undertaken at the zone where the deviation occured; and where Sa can be held to within close limits.
Patent DE-2813650-A1 (DE)
Title: Removable panel for sliding roof on vehicle - has sloping slots to engage fixed pins on roof frame, with panel removed by lifting rear edge
Inventor: BAUHOF KARL
IPC: B60J7/16
Filed: 1978-03-30
Abstract: The front edge of the sliding roof panel is located on the panel sliding support by two support axes (5, 6) and with special couplings slots between the panel and the axes. The front slot is open towards the front and clips over the front axis while the rear slot is sloped to slide over the rear axis. The panel can be removed by lifting the rear edge to disengage the rear slot and pulling along the plane of the panel. No fittings links are required and the panel can be removed in a garage with limited headroom.
Patent DE-2816530-A1 (DE)
Title: Electronic guidance stick for blind - suddenly alters frequency on encountering obstacle less than stick length away
Inventor: SCHULZ HANSRICHARD PROF DR
IPC: G09B21/00
Filed: 1978-04-17
Abstract: The electronic guidance device for the blind gives contactless measurement of distance. Data emission frequency and/or intensity is suddenly altered when the distance to an obstacle becomes less than stick length. The ultrasonic impulse radar principle is used to control frequency and/or intensity of the data signal, a fresh emitter impulse being produced, controlled by the echo time, so that the pulse sequence frequency f expressed in Hz is related to the distance r to the obstacle in accordance with the equation:- f = k/(s + r), s and k being constants.
Patent DE-2822105-A1 (DE)
Title: Spring modulator for car suspension - has several elastic pads secured between spring coils to reduce deflection on hitting bump
Inventor: MUEHLBERGER HEINZ DIPL ING
IPC: F16F1/13
Filed: 1978-05-20
Abstract: The coil spring of the vehicle suspension has its characteristics adjusted by elastic inserts (7) set between the adjacent coils of the springs and with all the inserts secured on a mounting plate (8). The number of inserts is chosen to provide the set amount of spring modulation. The inserts are easy to fit, with the car lifted off its wheels. They reduce the amount of suspension movement e.g. when a front spoiler is fitted, and prevent damage to that spoiler.
Patent DE-2834845-A1 (DE)
Title: Colouration of glass with copper - using a single stage heating process
Inventor: GRAFF WILLIAM ARTHUR
IPC: C03C21/00
Filed: 1978-08-09
Abstract: A glass body is coloured with copper by (1) coating the surface of the body with a liquid slip which contains Cu (I) halide (Cu2Cl2) a Cu (II) salt (CuSO4) and a particulate inorganic binder (sillimanite) and (2) heating the coated body to 500-700 degrees C in a gaseous atmosphere which is gradually changed from a non-reducing atmosphere into a reducing atmosphere to produce a red coloration. Only one heating stage is required for the process.
Patent DE-2840242-A1 (DE)
Inventor: MEIXNER HANS DIPL PHYS DR
IPC: F23K5/00
Filed: 1978-09-15
Abstract: A heating device for preheating heating oil flowing through a pipe has a heat conduction body to which a plate-shaped ceramic PTC resistance heating element is connected in heat exchange-relationship. The heating element has a thickness in the range of 0.5 to 2 millimeters, a Curie temperature between 120 DEG and 220 DEG  C. and a specific resistance of 430 to 5000 ohm-cm rated at a supply voltage between 110 and 220 volts such that the maximum temperature achieved by the heating element over a range of heat transfer rates is relatively constant and is determined by the resistivity and the Curie temperature of the heating element rather than by the rate of heat transfer. If designed for energization at 220 volts, the heating element has the same thickness and Curie temperature as in the first example described above, but with a specific resistance of 1700 to 20,000 ohm-cm as measured at 220 volts.
Patent DE-2847889-A1 (DE)
Title: IC engine with two pre-combustion chambers - arranged in series, with valve between, first igniting fuel to assist combustion in section
Inventor: LAMPARD ROBERT DOUGLAS
IPC: F01L1/14
Filed: 1978-11-04
Abstract: The piston compresses air in the cylinder which communicates via passage with first and second auxiliary combustion chambers. A reciprocable valve selectively blocks communication between the chambers. Fuel is injected into the second chamber during the compression stroke of the engine, the chambers then being in communication. Before TDC the valve closes. Around top dead centre additional fuel injection into the first chamber begins. The air fuel mixture in the second chamber is then ignited and the valve opened to cause ignited fuel to ignite the air-fuel mixture in the first chamber.
Patent DE-2852634-A1 (DE)
Title: Locking door unintentional closure prevention mechanism - comprises strip in concealed housing folded between door and frame by slide
Inventor: FABIAN FRANK-DIETRICH DIPL ING
IPC: E05F5/02
Filed: 1978-12-06
Abstract: The device reliably prevents the door wing from banging shut and provides safeguard against being locked out when someone has gone out without a key. It consists of a blocking strip (4), in a housing unit which has no part lying in front of the end face of the door wing. A sliding device (16) causes the strip to be folded between door wing and door frame, after being pushed out from the housing into an initial operative position. Part of the strip, at least, may be divided into two parts or pref. three.
Patent DE-2855922-A1 (DE)
Inventor: SCHROEDTER KLAUS DIPL CHEM DR
IPC: C01B25/237
Filed: 1978-12-23
Abstract: The invention relates to the production of alkali metal phosphate solutions free of zinc, from phosphoric acid solutions contaminated with zinc. To this end, feed solution is admixed with alkali metal hydroxide or carbonate so as to establish in the resulting suspension a pH-value within the range 8 to 14. Next, resulting suspension is reacted under pressure and with thorough agitation with H2S or an alkali metal sulfide solution; and decontaminated alkali metal phosphate solution is separated from solid matter, the pressure being maintained.
Patent DE-2905766-A1 (DE)
Title: Stacking chair with arm rests for use singly or in rows - has secure locking of arms by bolt and recess using ordinary tools
IPC: A47C3/04
Filed: 1979-02-15
Abstract: The arm rest which to obtain a low stacking height is offset relative to the upright stacking plane of the side legs is attached to a shaft. Its ends are housed for swivel movement in sleeves attached to the arm rest support. On e shaft end has at least one diagonal recess which can be brought into engagement with a diagonal bolt which runs through the corresponding sleeve. Inside one of the sleeves there is pref. a spring which presses the shaft supporting the arm rest in to the direction of the bolt. The arm rest is thus securely locked in position and can be readily released when pushed against the pressure of the spring, whereupon the recess becomes disengaged from the bolt. The locking action is concealed inside the sleeve so that the user cannot accidentally release it.
Patent DE-2905922-A1 (DE)
Title: Record locating system for record player turntable - has concentric rings of pegs projecting from surface to determine position of records
Inventor: HASSELBACH WOLFGANG DIPL PHYS
IPC: G11B17/028
Filed: 1979-02-16
Abstract: The record player with a set of selector buttons controlling the type of records to be played incorporates a system for locating the differently sized records. Incorporated in the turntable mat (4), in addition to the ridges (12, 13) for supporting the records, are pegs (15, 17) against which rest the edges of the records. An inner set of pegs (15) can locate the smallest size, and another set can locate the intermediate size. Further pegs (17) for the largest size can be incorporated on the surface adjacent to the turntable. There may be only two of these pegs. The spindle (14) in the centre has a pointed tip (23) which is highly polished.
Patent DE-2908508-A1 (DE)
Title: Blackboard suitable for group teaching - consists of base plate with rotatable paper roll on one side which can be locked when paper strip has been drawn off
Inventor: REGNER JOHANNES
IPC: B43L5/02
Filed: 1979-03-05
Abstract: The blackboard is used for instructional purposes and consists of a base plate which has a holder for a paper roll with a turnable bearing on one side. There are holding elements at the top and bottom edges of the blackboard to hold the top and bottom of the paper strip drawn off from the paper roll in position in front of the base plate. A frame is fitted to the base plate with those of its legs adjoining the paper roll and located opposite to the former being fitted with a passage slot for the paper strip. The paper roll holder is equipped with a locking device preventing it from turning when required.
Patent DE-2910803-A1 (DE)
Title: Furniture leg adjustable in height - consists of spindle with foot inside rectangular frame screwed to furniture
Inventor: DELECKER WILLY-MAX EDUARD
IPC: A47B91/02
Filed: 1979-03-20
Abstract: The leg for a piece of furniture or implement is pref. positioned inside the furniture frame and can be adjusted in height by means of a straight spindle (9). The leg has a rectangular enclosed frame screwed to one corner of the furniture frame. A top and bottom cover enclose the frame to form a housing (8). In the centre of each cover (1) is a partly slotted guide tube (2) for the spindle (9) at the bottom of which is a foot (17) which rotates on the spindle (9). Between the ends of the guide tube is a worm gear (13) supported by the spindle (9). The worm gear (13) or the spindle can be locked (6). Inside the casing (8) is at least one guide housing (14) for the control worm shaft.
Patent DE-2911168-A1 (DE)
Title: Electric miniature components feeder - singles out and orientates discharged components for bending and cutting leads
Inventor: SUTER EDWIN
IPC: H05K13/00
Filed: 1979-03-22
Abstract: Separation of individual small electric components is simplified and made less costly when handling randomly discharged components on the carrier surface. The mechanism ensures oriented location of the axial leads of components for presenting to the bending and cutting tools. The miniature components are handled by carrier gears close to the rotor, the shaft of which is guided by lugs. The shaft holds bells to form a transfer rotor with dovetail grooves holding on exchangeable strip with a separation and transport groove.
Patent DE-2912507-A1 (DE)
Title: Winding arrangement for machine tool two speed motor - has fifty four coils with six connections forming six groups and gives optimum chip removal by cutting tool
Inventor: BELIKOVA GEB NAUMENKO LJUDMILA
IPC: H02K17/14
Filed: 1979-03-29
Abstract: The drive of a machine tool uses a two speed motor and is designed for optimum chip removal by the cutting tool. The coils are formed to have six connections and 54 coils with uneven sets of windings. These are divided into 18 groups of coils, and the numbers of windings are in the sequence 4, 5, 1, 1, 1, 4, 4, 4, 3, 4, 5, 1, 1, 1, 4, 4, 4, 3. The first fourth and seventh groups form the first half of the first strand of windings, and the eighth, tenth and thirteenth form the other half. The first and second halves of the second strand are formed by the eleventh and fifteenth and by the second and sixth, respectively. The first half of the third strand are the third, fifth, seventh and ninth and th second half are the twelfth, fourteenth, sixteenth and eighteenth.
Patent DE-2912730-A1 (DE)
Title: High-pressure control valve - has two diametrically opposite flow deflector pockets in each plunger
Inventor: BRUNNER RUDOLF ING GRAD
IPC: F15B13/08
Filed: 1979-03-30
Abstract: The control valve is for a high-pressure hydraulic system with two or more plungers sliding in bores between neutral and two control positions. In the first control position a recess in the plunger periphery connects a pump outlet drilling in the bore to one leading to the unit supplied and offset axially from it. In the second the latter is connected to a return passage In neutral, unpressurised circulation takes place between the pump and return unions via a passage in the plunger. The passage is divided into two, so as to exert equal pressure on the plunger at opposite points. At right angles to the plane containing the ser (11, 12) and pump (8) unions are two diametrally-opposite flow-deflector pockets (17) in each plunger (6), each incorporated in one part of the unpressurised circulation passage. Each part-passage comprises a section leading directly from the outside of the housing to the respective pocket, and further one bypassing the plunger bore (5) and leading to the opposite side of the housing.
Patent DE-2914410-A1 (DE)
Inventor: MEYER ADOLF PROF DR ING
IPC: B28B21/72
Filed: 1979-04-10
Abstract: A hydraulically setting mass having a small tendency to cracking and a felt-like structure when freshly mixed while showing no cracks or only microscopic cracks when in the hardened condition comprises essentially a fast-hardening hydraulic cement binder, water, alkali-resistant mineral fibers and additives. The freshly mixed mass is applied in a layer to the surface of a tube or the like, the applied mass is completely covered with a sheet and the mass is pressed against the surface with the sheet.
Patent DE-2916987-A1 (DE)
Title: Welded pipeline joint e.g. for nuclear reactor cooling circuit - secured by split clamp around taper shouldered flanges
Inventor: DORNER HEINRICH DR ING
IPC: F16L13/06
Filed: 1979-04-26
Abstract: Welded pipeline joints, esp. for the coolant circuit of nuclear power stations, are produced by arc welding the V-shaped gap between the two short flanges at the end of adjacent pipes. The flanges have conical shoulders and are held together by matching split clamps of saddle shape with bolts at each end. This provides an additional safety measure in case cracks should arise in the weld and keep the pipe ends securely together. The egress of the coolant is prevented and both pipe ends are anchored in position.
Patent DE-2922966-A1 (DE)
Inventor: SCHWINDT JUERGEN DR
IPC: C08G18/10
Filed: 1979-06-06
Abstract: This invention relates to new diisocyanates containing urea groups which are liquid at room temperature or can be liquefied by heating to a temperature of up to 80 DEG  C. These novel diisocyanates may be in the form of solutions in isocyanate prepolymers. The invention also is directed to a process for preparation of these new diisocyanates by the reaction of special diisocyanate starting materials and water and to their use as components for the production of polyurethanes.
Patent DE-2924346-A1 (DE)
Title: Junction box or multiple terminal system for cables - has trip-shaped retainers holding contact spring sleeves which are pressed into recesses
Inventor: SCHWARZHOFF WOLFGANG
IPC: H01R24/62
Filed: 1979-06-16
Abstract: The box or terminal has pins (28) formed on the transverse partition walls (27) of the casing in the direction of the axes of the chambers within each series of chambers. Strip-like retainers (29) hold the contact spring sleeves (25) and press onto these pins with recesses (30). The lower part (1) of the casing and/or the upper part (2) have numerous retaining projections (21) that rest on the retainers and prevent their removal. A side wall (10) is formed on the edge of the lower part opposite the multiple connector. The lower and upper parts of the casing form a tension-relief cahmber (12) in the region of one narrow side.