baber/WOPTO huggingface dataset:
Patent DE-2502144-A1 (DE)
Title: Calcium and magnesium carbonates suitable for paper mfr - made by feeding carbon dioxide into aq suspension of calcined dolomite
Inventor: SCHULTZE WERNER DR
IPC: D21H17/67
Filed: 1975-01-21
Abstract: Process for mfg. carbonates of calcium and/or magnesium, the novelty being that by heating to 1000-1100 degrees C, dolomite is converted into a mixt. of calcium and magnesium oxides which are suspended in water using 1 pt. wt. of oxides and 20 pts. wt. water and the carbon dioxide is introduced into the suspension to convert the hydroxides into the corresponding carbonates. The initial starting material is pref. natural dolomite calcined in a rotary drum furnace, and the gas fed into the suspension is pref. CO2 or a mixt. of CO2 and N2, esp. the exhaust gas from the drum furnace. Before or during the slaking of the oxides, additional amounts of Ca or Mg oxide, hydroxide or carbonate may be added. Used e.g. for mfr. of basic calcium-magnesium carbonate as a filler or coating for mfg. glossy papers, where the carbonate has a degree of whiteness above 95%.
Patent DE-2503018-A1 (DE)
Title: Plastics LV electricity distribution box - has vented profiled walls to prevent sticking of posters etc.
Inventor: LANGMATZ HANS
IPC: H02B1/50
Filed: 1975-01-25
Abstract: The distribution box has at least one external surface with raised portions to prevent posters, etc., from being stuck on the box as these may obstruct important information such as box identification and technical data. The raised portions are preferably in the form of vertical horizontal or oblique ribs. The ribs may be in the form of louvres covering ventilation slots in the wall of teh box. The walls and door may be formed from overlapping panels which form ventilation slots of the overlaps. The box may be constructed of box segments whose bottom face is extended to form a rib with shoulders for spaced peripheral regions, forming together with adjacent segments a labyrinth-shaped air ducts.
Patent DE-2507515-A1 (DE)
Title: Overhead projector for transparent writing support sheets - has internal reflector mirror and fresnel lens system
Inventor: LANDSEE RAINER
IPC: G03B21/132
Filed: 1975-02-21
Abstract: The overhead type projector has a housing supporting the transparent writing surface, and with a light source and cooling face within the housing, and a deflector mirror and Fresnel lens with right angle cut edges attached, having a support arm for the projection head counting an objective and pivoting or lockable mirror, is constructed such that the height of the housing (1) is smaller than its length and width. The reflector mirror (3) encloses an angle of less than 40' with the floor of the housing (4) and the light source which illuminates it is situated close to the upper edge of the fresnel lens (6).
Patent DE-2508429-A1 (DE)
Title: Conveying nestingly stacked objects over small curvature - involves supporting objects by driven means through inner curvature of their path
Inventor: OERTEL WOLFGANG
IPC: B65G47/74
Filed: 1975-02-27
Abstract: The arrangement is intended for transporting a "snake" (1a) of stacked and nested objects such as flat plastic rimmed lids. In order to achieved a path with relatively small radius of curvature the rim sides going through the inner curvature of the path are in supporting contact with driven transport means, such as a roller or a system which may consists of a pair of rotatably driven discs. The periphery of these discs may be provided with lateral ribbing or a friction material. The transport means for moving the object along a straight path may consists of a conveyor belt (2).
Patent DE-2511274-A1 (DE)
Title: Profile milling of curves - has auxiliary table connected to feed unit and manual transverse traverse
Inventor: ANTOGNONI EZIO
IPC: B23Q35/10
Filed: 1975-03-14
Abstract: The profile milling arrangement is for the milling of curves of profiled bars and includes a table milling machine with a profile milling tool and is distinguished by an auxiliary table (8) mounted freely movable onto the table (7) of the milling machine (1). This auxiliary table serves to receive the chuck (10) for the workpiece (12) and also the template (11) which acts with the follower (4). The auxiliary table is connected by a rod (16) to the slider (18) of a controlled feed unit (21) arranged beside the milling machine. There are handles (13) on the auxiliary table for manually moving the table transverse to the feed direction of the feed unit (21).
Patent DE-2512151-A1 (DE)
Title: Electromagnetically controlled sealed switch - has ferromagnetic plate forming contact of parallel rod-shaped elements
Inventor: KURPANEK WALDEMAR H
IPC: H01H51/28
Filed: 1975-03-20
Abstract: The electromagnetically controllable switch has a contact of ferromagnetic material polarisable by an enclosing excitation coil and movable into two end positions determined by a magnetic force. At least in one end position it connects two contacts and makes a circuit. The contact (3) consists of several parallel, adjacent ferromagnetic rod elements and is in the shape of a flat plate. Preferably the rod elements are of circular cross-section and are of material of high coercive force and high remanence. The rod elements may be surrounded by a flat support of good electric conductivity. The switch design may be used also for types using a permanent magnet as a single bridging magnet.
Patent DE-2526767-A1 (DE)
Title: Twin piston pump for concrete - has triangular prism-shaped slide alternately connecting feed to one and outlet to other cylinder
Inventor: BENDER HORST
IPC: F04B7/00
Filed: 1975-06-14
Abstract: The twin piston pump is particularly intended for moving a concrete mixture and is of the type provided with control means which alternately feed one pump cylinder and allow the other cylinder to deliver to an output line. The control means consist of a sliding element in a housing which element has a triangular cross-section and contains curved connections from supply vessel to cylinder and from cylinder to outlet respectively.
Patent DE-2533286-A1 (DE)
Title: Polymerisable water-based compsns prepn - by dispersing incompletely polymsd resin-curing agent in aq soln of surfactant
Inventor: VIAZZI PIERRE
IPC: C08F2/00
Filed: 1975-07-25
Abstract: Aq. compsns. contg. an incompletely polymsd. resin, esp. a polyester, epoxy, or furan resin, for use in moulding, extrusion, spraying, etc. are prepd. by homogeneously dispersing (I) the resin, and (II) a curing agent in an aq. soln. of (III) a surface active agent. Process gives homogeneous stable dispersions, even with a high filler content. The prods. are easily converted into finished resin prods. with good mechanical properties, and can be easily detached from the shaping surface, e.g. a mould.
Patent DE-2534474-A1 (DE)
Title: Rope clamp for sailing boat applications - has two serrated toothed jaws mounted on base plate pivot to clamp rope
IPC: B63B21/08
Filed: 1975-08-01
Abstract: A self locking clamp for ropes particularly suited to sailing boat applications is designed to take a number of rope diameters and provide easy release. Two clamping jaws (1) are mounted on pivots (2) at either end of a base plate (3). Each clamping jaw has a cam shaped profile (6) with a vertical serrated tooth profile (4) formed on the lower half. The serrated teeth continue over the top section which is curved in the vertical plane. The operation a rope inserted between the jaws is locked in position by pulling to close the jaws. Release is readily effected by pulling the rope in the opposite direction (7) to open the jaws.
Patent DE-2535548-A1 (DE)
Title: Mechanical foam separation for beer fermenting vessel - leads to increased utilisation of vessel vol. and improved bitterness of beer
Inventor: ANTHON F DR ING
IPC: C12C11/00
Filed: 1975-08-08
Abstract: The foam separator is pref. mounted in a separating vessel which is connected to the fermenting vessel, or to several fermenting vessels simultaneously or consecutively. The separator, which operates with rotary conical plates, allows elimination of the previously required unfilled space for the foam, as the foam is continuously separated into the gas which passes out via the hollow shaft, and into the liquid, and optionally into solid particles whic are cast back into the vessel. The use of the separator also increases the bitterness of the beer by approx. 6% and allows the required bitterness to be obtained with a smaller quantity of hops.
Patent DE-2538276-A1 (DE)
Title: Dust-binding agents for salts and fertilisers - contg. mixts. of paraffins and spindle- or mineral oil
Inventor: MENZINGER FRITZ DIPL CHEM DR
IPC: C05G3/20
Filed: 1975-08-28
Abstract: New dust-binding agents to give practically dust free granulates, esp. of particle size of 0.8-4.0 mm up to a falling height of 20 m, consist of a mixt. of 75-90% soft paraffin (15-28C, pref. 18-22C) composed of 80-90% n-paraffins, 10-20% cyclo- and isoparaffins; and 10-25% spindle oil of ca. 15 c.st./20 degrees C with a solidifying point of 20-30 degrees C and average mol. wt. 300. Variants of dust-binding agents consist of a mixt. of 60-70% technical paraffins, 30-40% paraffin-contg. mineral oil of compsn. 5-15% (25-42C, esp. 30-37C) n-paraffins and 85-95% mineral oil of viscosity 120 c.st./50 degrees C and average mol. wt. 460. The agents may be used to prevent dusting of salts and fertilisers, esp. those as specified as encountered in stores, holds of ships etc. The paraffin/spindle oil based agents are esp. used for materials with fines above 18.5%. The variants are esp. used with fines below 14%. Either type of agent may be used with fines of 14-18.5%.
Patent DE-2539107-A1 (DE)
Title: Hydraulic impact hammer with multiway valve - has automatic control system for maintaining constant operating pressure in cylinder
Inventor: KROEGER HANS
IPC: E02D7/10
Filed: 1975-09-03
Abstract: The impact hammer is driven by pressurised liquid and a double-acting cylinder. The piston rod is connected to the hammer body. The hammer is actuated by multiway valves and a signal system operated by piston rod movements. This hammer is controlled by the operator according to changing operating conditions. The operating pressure, however, is kept almost constant automatically. This ensures efficient utilisation of stored hydraulic fluid. The signal generator (14) for determining the upper position tends to shorten the working stroke length when the supply pressure falls. Conversely when supply pressure increases, so does working stroke length. The movable signal generator is connected to the regulating piston (13) of a double-acting regulating cylinder.
Patent DE-2539395-A1 (DE)
Title: Wallpapers covered with pre-printed plastic film - having the pattern on the internal face
Inventor: MELSON HENNING
IPC: B41M3/18
Filed: 1975-09-04
Abstract: Composite wallpapers comprise a paper, fibrous or textile base covered with a clear plastic film, the internal face of the film being preprinted with a coloured pattern.
Patent DE-2549825-A1 (DE)
Title: Cover for metallurgical casting ladles - has segmented edge and moving midsection protecting lining, and for access
Inventor: GRUNER HANS ING GRAD
IPC: B22D41/00
Filed: 1975-11-04
Abstract: Cover arrangement for metallurgical casting ladies, is readily handled and locked into position. It also ensures long life of the fireproof ceramic lining. The cover has a circular edge (1) rim which is connected firmly to the ladle by spring loaded connectors. The circular middle section is locked with the edge region and the middle section has rotating bracket. The circular edge can be subdivided into segments. The edge of the cover remains on the ladle and this eliminates the need for sealing between the cover and the ladle for each treatment. The fireproof lining is no longer damaged due to the lowering and lifting of the cover and is protected against expansion and cracking and also against erosion. Metallurgical treatment is carried out through the opening in the mid section.
Patent DE-2551008-A1 (DE)
Title: Inductive annealing of high-alloy welding wires during drawing - using temp. according to chemical compsn. of wires
Inventor: GERDAU HERBERT
IPC: B23K35/40
Filed: 1975-11-13
Abstract: Inductive annealing of high-alloy welding and resistance wires during drawing is carried out by passing the wires after each cold drawing stage through an induction circuit and subjecting them to intermediate annealing without interrupting the continuity of drawing. The temps. reached during annealing depend on the chemical compsn. of the wires. Method allows drawing to be performed continuously until the desired final size is reached.
Patent DE-2552732-A1 (DE)
Title: Double ended coal shearing machine - has machine angled before winning to bring roof drum forward, floor drum is trailing to cut at floor level
Inventor: BRANDENBURG HELMUT
IPC: E21C27/02
Filed: 1975-11-25
Abstract: Coal seam winning by shearer with two cutter drums carried at adjustable levels by swivel jibs, using the leading drum to cut the seam at the roof. before starting out on the winning trip, the body of the machine (1) is adjusted to bring the roof drum (5 or 6 as appropriate to the direction of travel) forward in the cutting sense, in relation to the floor drum (5 or 6) which trails and cuts at this level. Pref. it is only the part of the machine which carries the respective leading jib (8 or 9 as appropriate to the direction of travel) which is angled prior to winning. The body, capable of transverse movement, should slew round a vertical axis (16) with locking facilities in all positions, using a portal frame (2) as mounting, above the level of the floor pack (12) cut clear by the respective top cutting drum.
Patent DE-2557004-A1 (DE)
Title: Formic acid-free acetic acid prodn - by oxidn of acetaldehyde in the presence of a catalyst contg cobalt, manganese and nickel cpds
Inventor: ROSCHER GUENTER DIPL CHEM DR
IPC: C07C51/235
Filed: 1975-12-18
Abstract: Acetic acid is produced virtually free of formic acid by the liq. phase oxidn. of acetaldehyde with (an) O2 (-contg. gas) in the presence of a catalyst comprising mixts. of Co, Ni and Mn cpds. Due to only traces of HCO2H being present, (typically 100 ppm) ordinary stainless steel distillation columns can be used (instead of special materials) to purify the crude AcOH. Purifn. of the AcOH is simplified as impurities other than HCO2H are easier to remove. Secondary products (CH3OH, AcOCH3, CO2, CH4, H2O etc.) are not formed in any greater quantities nor is the yield of AcOH reduced. The catalyst can be easily recovered almost quantitatively and re-used.
Patent DE-2558691-A1 (DE)
IPC: E05B65/00
Filed: 1975-12-24
Abstract: The catch (2) of a combination lock is connected to a mounting slide (1) for the releasable fixing of a mounting bolt in the locking position. A pivotable blocking element (3) on the one hand is connected to the catch (2) of the combination lock and on the other hand blocks the mounting slide (1) in the locking position. This blocking element can be moved out of the blocking position by means of pulls exerted by the catch of the combination lock. It is designed as a self-locking toggle lever (3). This makes it possible to ensure that, although the mounting slide (1) is also retracted when the catch (2) of the first lock is retracted, nevertheless no influence on the first lock is possible under load in the opposite direction. <IMAGE>
Patent DE-2603370-A1 (DE)
Title: Pivot for component at distal end of endoscope - with angular gear mechanism between actuator and shaft and suitable for one:handed operation
Inventor: PAULDRACH GEORG
IPC: A61B1/00
Filed: 1976-01-29
Abstract: Device for pivoting components at the distal end of an endoscope comprises a control box (1) in which is rotatably mounted a hollow shaft (7) on which is pivotably mounted an actuator (2). Pivoting of the actuator is transmitted by an angular gear mechanism (5a, 9) to a shaft (8) which extends through the hollow shaft. The mechanism may consist of a bevel gear (5a) which is non-rotatably connected to the shaft, and a second bevel gear (9) which is mounted on the actuator and which meshes with the first bevel gear. Alternatively it may consist of a bevel gear and rack. Actuation can be performed with one hand, to pivot the component in different planes.
Patent DE-2607844-A1 (DE)
Title: Decimeter wave circulator with lumped elements - uses metallized dielectric plate with connectors and gyromagnetic disc
Inventor: DEUTSCH JOSEF DR RER NAT
IPC: H01P1/387
Filed: 1976-02-26
Abstract: The circulator with lumped parameters has three branches set 120 deg. apart and the flat conductors are insulated from each other. Simplification of the design is due to the application of integrated microcircuit techniques and due to inclusion of the gyromagnetic disc. This decreases the damping as well as makes the unit independent of variations. The dielectric plate(1) of a ceramic has a metallization layer 1' on one side, while the opposite side carries the printed or otherwise deposited conductor(2c) connected at one end to conductor strips(3a-3c). The latter are offset from each other by 120 deg. and form strips that are insulated from each other. The bore in the plate(1) holds a ferrite or garnet disc(4) with a soft magnetic plate (6) underneath it.
Patent DE-2618329-A1 (DE)
Title: Composite jewellery ring giving several shapes - has two identical non:circular elements fitted rotatingly on inner circular collar
Inventor: EXNER GEB NIESSING URSULA
IPC: A44C9/00
Filed: 1976-04-27
Abstract: The design concerns a jewellery ring consisting of several parts fitted together in such a way that a combination of shapes can be achieved even after the ring has been put onto the finger or applied to a scarf. The ring consists of two triangle-shaped elements (1) and (2) with their central finger hole fitted to a collar-like ring (3). The ring is provided with turned-over rims (4) which hold together the two triangle-shaped elements by their shouldered peripheral parts (5). One of the triangle-shaped elements can be provided with an axially projecting ring-shaped part (6) which rests against the plain surface of the other element, hereby creating a slight gap (7) between the two elements. Also on the peripheral part of the triangle-shaped elements a gap (8) can be created by a difference of diameters.
Patent DE-2623581-A1 (DE)
Title: Solid fuel rocket projectile - has radial burner propellant support tube which serves as carrier for ignition charge
Inventor: BETHMANN KARL WILHELM DIPL ING
IPC: F02K9/95
Filed: 1976-05-26
Abstract: The tubular support (10) is intended for a solid propellant unit (12) of a radial burner, partic. for a rocket projectile, and has an enclosed wall (11). The tubular support serves as a carrier for the ignition charge (17). The tube wall may be provided with recesses. The ignition charge may be arranged on at least one surface of the tube, in recesses. The tube wall may have ignition orifices (18). A further tube with ignition orifices may be co-axially arranged around the support tube. The charge may be arranged in the orifices of the support tube.
Patent DE-2623878-A1 (DE)
Title: Contact holder for reed relay - has frame holding coil, contact tongue and fixed contacts and end openings closed by covers
Inventor: NISHIMURA HIROMI
IPC: H01H50/04
Filed: 1976-05-28
Abstract: The contact holder, for a reed relay, can accept different switch elements and has several connections embedded in a frame open at its top and bottom. A coil, a contact tongue and fixed contacts are located inside the frame and connected to the connections. A permanent magnet is positioned near the fixed contacts. The frame's top and bottom openings are closed by covers. The contact tongue is made of wire and shaped so that its contact end is dome-shaped. Projections on a support plate at the base of the contact tongue are fixed into a slot at the input of the coil assembly.
Patent DE-2630427-A1 (DE)
Title: Heat exchanger inset coated with corrosion resistant plastics - comprises a tube bundle welded into a bottom plate passing through plastics spaced diverting discs for the outer heat exchange medium
Inventor: VAD RICHARD
IPC: F28F9/013
Filed: 1976-07-07
Abstract: In Parent patent, mfr. of a heat-exchanger insect coated with corrosion-resistant plastics and comprises a tube bundle which is welded into bores of >=1 frontal bottom plate and passes through spaced, plastics, diverting discs for the exterior heat-exchange medium. In this patent of addition the bores in the bottom plate are cleaned with a solvent and/or by sand blasting; then lined, by spraying, with a heat-setting, clear, resin, pref. an epoxy. After drying the tube bundle is introduced and the ends of the tubes passing through the bores radially rolled-on in known manner to remove any resin being forced out of the bores. The resin is removed with solvent and/or sand blasting, and the anchoring rods (pref. double) welded to the bottom plate.
Patent DE-2634029-A1 (DE)
Title: Milling cutter with interchangeable cutter bits - has smaller pre-cutters of different section to relieve tips of main cutters
Inventor: HEINLEIN HANS
IPC: B23C5/22
Filed: 1976-07-29
Abstract: Two types of cutter bits are mounted on the milling cutter. The first type is a main cutter element (4), the second is a pre-cutter (5), which is always mounted immediately in front of the main cutters. The dimensions of the pre-cutters are smaller than those of the main cutters. The pre-cutters cut over an area (f) over which the main cutters do not cut. A cutting edge of the main cutter which has become blunt can be placed in the non-cutting position.
Patent DE-2635171-A1 (DE)
Title: Photoelectric gas analyser with tunable laser radiation source - has radiation passing through test gas sample to detector feeding logarithmic signal processing circuit
Inventor: RIEDEL WOLFGANG DIPL PHYS
IPC: G01N21/39
Filed: 1976-08-05
Abstract: The signal output of the detector is connected to a logarithmic network. At any time interval in which the laser frequency changes in a frequency band outside and in the region of the absorption line the time control unit switches the output of the logarithmic network to a channel with integrating and holding circuits. The output signal of the analyser is formed by forming the difference of the stored values. A beam splitter produces a reference beam path and a motorised diaphragm alternately frees the two beam paths which are united again into one beam path by a beam fusion device in front of the receiver.
Patent DE-2640318-A1 (DE)
Title: Wedge drive for press tool - has curved nose or roller tip to convert vertical wedge movement to horizontal
Inventor: FEIRER EGON
IPC: B30B1/40
Filed: 1976-08-09
Abstract: The wedge drive is for deflecting a vertical press force into an angled force. The vertical press force acts on a drive wedge which acts with the push wedge of a deforming punch at an angle to the drive wedge. A leading curve (3) is arranged in the extension of the wedge face (1a) of the drive wedge (1). In its region (2b) which acts with the drive wedge (1) during its first contact, the push wedge (2) is mounded. The region (2b) of the push wedge (2) which acts with the leading curve (3) is pref. in the form of a roller. The radius of the push wedge region which acts with the leading face or the radius of the corresp. roller is so chosen that the wedge face is at a tangent to the radius.