baber/WOPTO huggingface dataset:
Patent DE-2654212-A1 (DE)
Title: Two=stage centrally controlled TDM telephone exchange - has two circulation stores with each group control enabling complete access without search
Inventor: FAHMY FOUAD MOUSTAFA DIPL ING
IPC: H04Q11/04
Filed: 1976-11-30
Abstract: Subscribers connected to the first stage are combined in groups, and a partly independent group control is provided for each group. The second stage is in the form of a PCM switching panel, to which the first stage is connected through which internal exchange signals are also transmitted. External PCM lines are also connected to the second stage, and the exchange central control is connected to the PCM switching panel through a pre-processing unit. A state scanning store and a speech circuit connection store are provided in the group controls. Both stores are operated as circulation stores, and circulation period of the state scanning store is a multiple of that of the speech circuit connecting store. Allocation of a free row of the latter, and thus of a free channel of the PCM line is done by cyclic shifting of the subscriber scanning period relative to the connection store control. This ensures complete access, and allocation can be made without search.
Patent DE-2702606-A1 (DE)
Title: (1,3)-Butadiene oxidn. to maleic anhydride in high yield - using a complex catalyst contg. several metals and oxygen
Inventor: DOLHYJ SERGE R
IPC: B01J23/28
Filed: 1977-01-22
Abstract: Oxidn. catalyst YaSbbMocVdZeOx (I) is used for the improved synthesis of maleic anhydride from 1,3-butadiene and molecular oxygen (II) at 250-600 degrees C. In (I), Y is Li and/or Ce; Z is W, Mg, Al or Ni as the metal or its oxide; a and d = 0.01-1.0; b and c = 1-9; e = 0-1; x = a number which satisfies the valence requirements of the other elements present. Improved yields of clean maleic anhydride and a decreased amt. of waste by-prods. are obtd. by using (I). In an example, 1,3-butadiene and air were passed over Lio.1sbMo3Vo.1Ox + W degrees 0.06 in a stainless steel tube. The heating jacket around the tube was at 360-371 degrees C and the contact time was 3.3 secs.
Patent DE-2702615-A1 (DE)
Title: Telescopic stay for window or furniture flap - has internal catch loaded by spring and projecting ratchet
Inventor: ZAHN HORST
IPC: E05C17/08
Filed: 1977-01-22
Abstract: The stay is used for supporting window of a caravan or furniture flap. The inner solid stay bar slides telescopically in tubular outer part of stay. The inner stay bar has pivoted catch for engaging with outer part for holding bar at different positions for ensuring different holding angles of window. The catch mechanism is stable and simple and it can also be used when both stay parts are tubular. The cam of a spring-loaded sliding bolt is pushed against the catch. The cam convex edge ensures that the cathc lug assumes two stable positions under spring force. The ratchet tooth of the catch projects through a slot in a groove of the outside tube with several ratchet openings.
Patent DE-2705385-A1 (DE)
Title: Prefabricated building unit e.g. garage - has walls split, by horizontal dividing line with mating edges including protrusions and depressions
Inventor: HOHNER GERARD DIPL ING
IPC: E04H6/02
Filed: 1977-02-09
Abstract: The building unit (1) incorporates a peripheral dividing gap (6), horizontally dividing all the walls (2-5) and separating the structure into top and bottom halves (7, 8). The bottom half (7) is made in one piece with the floor (10). The two halves are interconnected to form a single entity. The dividing gap pref. runs along the centre line of the wall's height. The interfacing edges of the two halves may include protrusions and depressions, for joining together in tongue and groove fashion. At the corner there may be guide lugs and holes.
Patent DE-2706646-A1 (DE)
Title: Sley stop motion - has the drive motor stopped prematurely for a slow-speed drive to bring sley to final rest position
Inventor: MAASSEN HEINZ
IPC: D03D51/08
Filed: 1977-02-17
Abstract: In bringing a sley to rest at a point between the forward and rear limits of is reciprocating path, the drive movement to the sley is ended at a preliminary point so that the sley can be brought slowly into the required stop position. The ending of the drive movement of the sley occurs a around the rear limit point at which the sley changes direction, and the slow-motion positioning is completed before the sley has returned to the forward limit of its movement. The system ensures that the sley is stopped and held at a given position, even in a high speed loom.
Patent DE-2708849-A1 (DE)
Title: Electrophotographic recording material contg. fluorine cpd. - in photosensitive layer has good negative discharge properties
Inventor: TARUMI NORIYOSHI
IPC: G03G5/00
Filed: 1977-03-01
Abstract: Electrophotogrpahc recording material has an electrically conductive substrate with a photosensitive coating contg. a photoconductor (I) and a low-mol. f cpd. (II) with a functional gp. in a resin binder based on a thermosetting resin (III). (II) pref. contains -OH, -COOH, -NH2, -NHCH2OH, -CNO, =NCH2OH and/or -CH(R)OMe gp(s). (in which R is 1-30C alkyl) and has a linear structure, with mol. wt. max. 3000, and is used in an amt. of 0.01-7, esp. 0.2-4 wt. % w.r.t. the binder. (III) is pref. an acrylic and/or alkyd rsin and opt. also contains an epoxide resin; or a melamine resin as hardener. The material has good negative discharge properties and gives high quality copies, even after repeated reprodn. cycles. Its moisture resistance is excellent. In an example, addn. of (II) to a coating based on CdS, thermosetting acrylic resin and melamine resin reduced the charging voltage and improved the copy quality, which was still excellent after 5000 copies.
Patent DE-2716427-A1 (DE)
Title: Compact electro-acoustic multi-tone sequence chime - has at least three resonators parallel to each other, with one striker crossing plane of inner resonator
Inventor: ELY HELMUT
IPC: G10K1/067
Filed: 1977-04-14
Abstract: The chime has at least two sounding plates, bars, etc. freely suspended on holders in a case. The plates are parallel to each other and at about the same distance from the base plate. There are two striking systems between the plates. The two strikers can move transversally to the plates and independently of each other. At least one further plate is provided, and all three are parallel to each other, within the space limited by the two outer plates. They are at least approx. at the same distance from the base plate and the movement path of one of the two strikers crosses the plane defined by the middle plate.
Patent DE-2724928-A1 (DE)
Title: Blending stored materials in double silos - having mixer silo with homogenising blending silo mounted below it with feed via controlled spouting inlets
IPC: B01F33/40
Filed: 1977-06-02
Abstract: Stored material is blended in silo which consists of a combination of a mixing silo with a homogenising silo. The layers of material in the mixing silo are withdrawn via metering and flow control devices. They flow into each other as spouts and are mixed in this way. The quantities of material withdrawn from the mixing silo flow into the homogenising silo and are then blended using a fluidising technique. Only sufficient material is withdrawn from the upper silo each time as is allowed to leave the homogenising silo because this requires a certain level for effective operation, this being measured by means of a level detector. Used for blending particulate materials. System combines the advantages of continuous blending silos and homogeneous silos.
Patent DE-2725045-A1 (DE)
Title: Engine exhaust gas heat exchanger cleaning system - injects water at intervals into heat exchanger while engine is working
Inventor: HOIM VIKTOR ING GRAD
IPC: B08B9/032
Filed: 1977-06-03
Abstract: The heat exchanger for the exhaust gases of IC engines is cleaned by injected water. This heat exchanger is cleaned relatively simply during the operation of the engine. Water is injected at certain intervals during the engine operation into the hot gas carrying pipes of heat exchanger at the inlet of the exhaust gases. The water is injected in the direction of the exhaust gas flow in the heat exchanger and the injection process is controlled by the increasing degree of contamination of pipe inner walls which causes an increase in the exhaust gas temperatures downstream of the heat exchanger.
Patent DE-2725280-A1 (DE)
Title: Pipe connection system for thin metal pipes - uses compressible sleeve with conical section and ring collars
Inventor: DEPREZ MAURICE
IPC: B21D39/04
Filed: 1977-06-01
Abstract: The pipe connection is esp. for use during actual installation. The pipe ends are connected using a metal sleeve with sealing rings in radial inwardly opening grooves, with parts of the sleeve being compressed. The sleeve (3) has a conical transfer section (11, 12) between its central section and the ring collars (4, 5) thereby forming the grooves (14, 15). Before compression, the conical sections are at an angle of 45 deg. to the sleeve. The internal radius of the cross section of each groove is larger before compression, than the similar radius of each sealing ring (6, 7). The ring collars are flattened at the outer circumference after compression. Beads (16, 17) are pressed into the sleeve next to the collars, so that they produce similar compressions (18) in the pipe ends (1, 2).
Patent DE-2725678-A1 (DE)
Title: Self-discharge inhibitor for lead accumulator electrolyte - comprises 1-naphthol-4-sulphonic acid or its salt
Inventor: BOPP BERND UDO
IPC: H01M10/08
Filed: 1977-06-06
Abstract: The electrolyte of a lead accumulator contains an inhibitor to reduce self-discharge. The inhibitor consists of 1-naphthol-4-sulphonic acid or its salts, pref. a sodium salt, in a concn. of 1-5 g/l. This acts both as corrosion protection for the electrode and for the preservation of the charge of an unused battery. The additive has no detrimental effect on the electrical properties of the electrolyte. This inhibitor has a better solubility in sulphuric acid then the conventional alpha-naphthol; it ensures a uniform adsorption on the entire surface of the lead electrode. An optimum inhibition is achieved at a concn. of 1-2.5 g/l, compared with over >5 g/l for alpha-naphthol.
Patent DE-2731478-A1 (DE)
Title: Continuous hollow tunnel or channel - has tubular sections placed in water filled trench from floating dock
Inventor: JANSZ JOOST WERNER
IPC: E02D29/073
Filed: 1977-07-12
Abstract: The continuous hollow channels such as an underground tunnel or a sewage disposal channel is made from prefabricated sections. The latter are connected together in an excavated open trench filled with water. The trench is excavated progressively in front of the sections. The sections are lowered on a foundation and the face around the sections is filled. The tubular sections are accommodated or made on a floating dock which is moved forwards together with the progress of the work. The tubular sections are made so that they are able to float at least temporarily. This tunnel is relatively economically to make.
Patent DE-2732821-A1 (DE)
Title: Clothes hanger with grips - has pairs of jaws positioned at ends of arms and biassed closed by springs
Inventor: FREI ERNST
IPC: A47G25/52
Filed: 1977-07-20
Abstract: The clothes hanger consists of a hook from which two arms diverge in two opposite directions. At the free ends of the arms are pairs of jaws for gripping the article of clothing, such as trousers. The jaw pairs are held tightly against one another by means of a spring and can be parted. The jaws are turned in at their free ends in opposite directions to form an angle. They extend almost at right angles to the lengthwise direction of the arms. They have protuberances extending in opposite directions midway along their lengthwise part.
Patent DE-2733151-A1 (DE)
Title: Starting and steering control for sledge - has reciprocating hand levers connected to drive sprocket wheels which are cut-away over part of their periphery
Inventor: GERECKE GUENTER
IPC: B62M27/00
Filed: 1977-07-22
Abstract: The sledge is fitted with two toothed drive wheels (10) set under the rear and with each wheel having no teeth on a third of its circumference. The wheels are linked to reciprocating arm levers (4) by means of which the rider can operate the drive to start the sledge. The toothed wheels can be set with the toothless section over the ground to allow unimpeded downhill runs. If the levers are operated separately, then the relevant toothed wheel is brought to the ground for steering control. The sledge can also be used to start downhill runs on grass, in summer.
Patent DE-2734520-A1 (DE)
Title: Threaded formwork element connector with spacer - has spreader unit driven into hole in screw section following nut fastening
Inventor: LIEDGENS KARL
IPC: E04G17/065
Filed: 1977-07-30
Abstract: Connecting element, with spacer for formwork units, comprises a screw piece with external thread and corresponding nut piece with internal thread. The screw piece has a central aperture (1) and one or more slits (2) extending in the axial line. A spreader piece (5) is driven into the aperture when the nut piece has been put on; it may be made in a single piece with the nut, or with the screw. The element can be made of plastic. The nut piece may be polygonal on the outside or inside, and incorporate a slit for a screwdriver, and an end bearing edge (18).
Patent DE-2736677-A1 (DE)
Title: Tension meter in feed of cable strands - is used in cable mfr. and has sections simulating feed and take=up spool parameters
Inventor: HOPPE BERND
IPC: B65H59/40
Filed: 1977-08-12
Abstract: A stress measuring device determines the tension on the strands of an electric cable which are fed from spools with a breaking device or winders driven by a friction coupling. The external dimensions of the breaking device and the coupling flanges are tailor made to the take up reels. The section (11, 12, 30) representing the reel consist of the element (13, 15, 30) which make up the measuring device. The drive (13) is electrical with a reduction gearing (15) and will indicate the speed of the take up spool. The reduction gear is of the differential type with two outputs where one drives the spool and the other is connected to a force meter.
Patent DE-2736855-A1 (DE)
Title: Single-track roller skate - uses removable running wheels allowing conversion into ice skate
Inventor: KREFT GUENTER
IPC: A63C17/18
Filed: 1977-08-16
Abstract: Two saddle shaped double supports are fastened at a distance to each other below the sole (21) of the boot (2). The supports have releasable elements (4) to accommodate removeable running wheels (5') or ice skates. The supporting flanks are positioned at an angle to each other of 30-90 deg. The supports are connected by an elastic element (6), so that the roller skate may be changed to an ice skate. Pref. the elastic element consists of spring rod or strip material between the saddle shaped two-part jaw supports (3).
Patent DE-2739787-A1 (DE)
Title: Laminated body panel-type solar-heat collector - composed of a pane of glass and glued-on metal sheet covered with plastics hard foam with moulded channels for heat transfer liq.
Inventor: ZEHENDNER WALTER
IPC: F24S10/50
Filed: 1977-09-03
Abstract: Flat solar-heat collector has a collector layer covered by a sheet of glass. The collector transmits absorbed solar heat to a liq. flowing through ducts which are connected with the collector layer. The collector is a composite body comprising an insulating glass sheet, the actual collector layer applied to 1 side of the glass sheet, and on top of the collector layer, a layer of thermally insulating material into which open ducts for the liq. are moulded. The heat-insulating matl. is a plastics hard foam. The collector layer is a metal sheet or foil with radiated-heat-absorbing coating and glued with its coated side to the insulating glass sheet.
Patent DE-2745164-A1 (DE)
Title: Railway wagon spring loaded telescopic hydraulic buffer - has variable opening cross partition for hydraulic fluid in high pressure chamber
Inventor: RITZL ANTAL
IPC: B61G11/12
Filed: 1977-10-07
Abstract: The buffer for a railway vehicle, has two or more telescopic and coaxial cylindrical sleeves, one with a buffer plate and movable against a spring or other force reservoir. There is a high pressure chamber (Jh) for hydraulic fluid, or similar, in one of the axially moving sleeves (40). This is bounded by a movable cross partition (27), containing a variable cross-section recess for passage of this fluid into and out of an area of lower pressure (Jn). This avoids loading peaks, and is reliable regardless of the prevailing temperature.
Patent DE-2800750-A1 (DE)
Title: X=ray generator HV transformer iron core - has magnetically soft metal sheet coiled around longitudinal axis to form inter-yoke limbs with circular cross=section
Inventor: LAGEMAN HUBERT DR
IPC: H01F27/245
Filed: 1978-01-09
Abstract: The iron core is for a low power h.v. transformer, e.g. as used in X-ray generators. It comprises flat magnetically soft sheet metal yokes with cylindrical likewise magnetically soft sheet metal limbs arranged between them. So as to reduce costs and to cut down the space required for the windings, the metal sheet used for the inter-yoke limbs is coiled around the longitudinal axis of these limbs in such a way that an approx. circular limb cross-section results. More specif. the discrete metal yoke laminations are glued together and connected by means of welding seams.
Patent DE-2806594-A1 (DE)
Title: Aircraft wing with variable thickness and chord - has hinged underside panels linked to bell-crank levers operated with flaps
Inventor: AEBISCHER FRITZ
IPC: B64C3/48
Filed: 1978-02-16
Abstract: The aircraft wing has thickness variable as well as chord and is based on a box spar and Fowler type trailing edge flaps. The undersurface (12) is movable, being hinged along the leading edge to a flap (11) fitting under the fixed top surface. This flap is on slotted rails (1) running over rollers (2) on brackets projecting from the spar. A similar roller (9) - rail (7) arrangement behind the spar supports the trailing edge flaps. Lazy-tongs (8) supported (4) from the spar are connected to bell-crank levers (6, 16) respectively pivoted from the spar rear (6), flap frame (13) front (16). Flap (11, 12, 13) operation thus produces undersurface, panel vertical movement.
Patent DE-2807974-A1 (DE)
Inventor: STIEFEL MAX ING GRAD
IPC: G21C7/22
Filed: 1978-02-24
Abstract: Boric acid is fed into the primary coolant line for the purpose, in particular, of achieving a satisfactory shutdown reactivity. The boric acid is to be fed at high pressure into the primary coolant lines in sufficient quantities, there being a small requirement for storage volume and a low supply of auxiliary energy. Provided for this purpose is a container (1) which is filled up to the level (7) with high-percentage molten boric acid and a small amount of water. The container contents are heated by the heater (6). The ratio of boric acid/water is selected such that the water vapour cushion forming in the container presses the boric acid into the primary coolant line (12) via the connecting line (11). <IMAGE>
Patent DE-2808542-A1 (DE)
Title: Steel strap tightening and securing mechanism - has tension wheel actuating release mechanism for stamping and cutting
Inventor: HELFF JOACHIM ING GRAD
IPC: B65B13/30
Filed: 1978-02-28
Abstract: The machine tightens and stamps a steel strap enclosing an item so as to join the overlapping ends together. A driving member swings up and down and indexes a tension wheel working with two or more pawls in the tightening direction by means of levers and engaging with the strap's rear end. When a predetermined degree of tension is detected, a mechanism grips the rear end and forms a notch in it. The thrust force generated by the wheel in a thrust lever with increasing strap tension actuates, on reaching an adjustable value, a release mechanism cutting in the stamping and cutter mechanism to which power is transmitted by the wheel.
Patent DE-2818117-A1 (DE)
Title: Thrust bearing for flexible coupling - has V=shaped body with two radial vanes supported on driver of coupling secondary part
Inventor: ZIEGLER GUENTHER DIPL ING
IPC: F16D3/68
Filed: 1978-04-25
Abstract: The flexible coupling has three or mare arms on a primary part, and the same number of counter bearings on a secondary part, the bearings being between the arms. Each counter bearing has a pair or arms converging radially inwards and enclosing a hollow space. The counter bearing (22) is V-shaped with two radial vanes (32) extending outwards. It is also supported on a driver (42) of the secondary part. This driver (42) is inserted axially in the bearing's hollow space (34). The vanes of adjacent bearings (22) are joined together.
Patent DE-2821195-A1 (DE)
Title: Hand held shower head with aerating switch - has air inlet and central flow divider in water channel
Inventor: RATHSACK GUENTER
IPC: B05B1/18
Filed: 1978-05-13
Abstract: The shower head has a plate with water passages on the inlet side, an air mixing space on the outlet side. It has a cover with water outlets, and an element for the selectively switching between water jets, with and without air. A channel (30) extends from each passage in the plate (20) through the air space (42) to an associated outlet (54) in the cover (24). An air inlet is between the air chamber and each channel. A flow divider (62) is centrally positioned between air inlet and water outlet within the channel, to mix water and air.
Patent DE-2830279-A1 (DE)
Inventor: STAEHLE HELMUT DR
IPC: A61K31/415
Filed: 1978-07-10
Abstract: 2-[N-(Cyclopropyl-methyl)-N-(2'-chloro-4'-methyl-thienyl-3')-amino]-2- imidazoline and non-toxic, pharmacologically acceptable acid addition salts thereof; the compounds are useful as bradycardiacs.
Patent DE-2837711-A1 (DE)
Title: Holographic method for prodn. of inverse filter - using recording material with logarithmic characteristic and stipulated intensity ratio between reference and lens beams
Inventor: DALLAS WILLIAM JOHN
IPC: G02B27/46
Filed: 1978-08-30
Abstract: The inverse filter for coding or decoding an image or for image improvement, is obtained using a holographic method. A recording material with a logarithmic characteristic is used for the filter hologramm, with an intensity ratio between the reference light waves and the lens. Light rays which is different from that being used during the exposure. The filter hologramm may be obtained via a double exposure, with the coherent reference light used for the initial exposure and the lens light waves which are of greater intensity, used for the second exposure.
Patent DE-2840914-A1 (DE)
Title: Master cylinder for antilock brakes - has sprung base in cylinder to absorb pressure pulses and protect seals
Inventor: KIRCHER DIETER DIPL ING
IPC: B60T8/38
Filed: 1978-09-20
Abstract: The master brake cylinder of the anti lock brakes is fitted with a sprung bottom (13) to absorb pressure pulses without damaging the piston seal (10) when this passes the vent hole (11). The sprung bottom is held in the blind bore of the cylinder by an integral spring. The sprung fitting prevents the edge of the piston seal being pushed into the vent hole if the brake modulation occurs when the piston starts to move.
Patent DE-2844858-A1 (DE)
Title: Folding car seat safety belt securing system - uses seat frame detachably secured to chassis and has guides for belt ends
Inventor: FIALA ERNST PROF DR TECHN
IPC: B60R22/26
Filed: 1978-10-14
Abstract: The system secures a safety belt for a folding seat in a motor vehicle, particularly a car. The ends (6) of the belt fitting over the abdomen are fixed to the frame (11) of the seat (2), which is secured to the vehicle chasis (4,, 14) by a detachable locking mechanism (13). Fittings can be provided (18) to hold and guide the belt ends against the seat surface; these are typically loops through which the ends are passed. Alternatively there can be guide sleeves fixed to the seat frame.