baber/WOPTO huggingface dataset:
Patent DE-2435572-A1 (DE)
Title: Combustion residues e.g. coarse ash - from coal burning used as aggregate and filler replacements in light concrete
Inventor: FOERSTER PETER
IPC: C04B18/06
Filed: 1974-07-24
Abstract: Building materials are produced by replacing part of standard aggregates and/or fillers by coarse ash from coal burning, (a) contg., by wt. 5% xylite, >4% hydraulic CaO, >6% Al2O3, 15% SO3, >50% w.r.t. SO3 content, active Al2O3; (b) having loss on ignition 30 wt.% and (c) contg. >75 wt.% components having grain-size >0.09 mm. Light concrete building components are produced from these aggregates and/or fillers, binder and processing water, followed by heat-treatment with steam to cut out damaging effects of SO3 and to achieve early high strength. Replacement of 30-100% of conventional aggregates and fillers by coarse ash, hitherto regarded as unusable waste, allows 0-15% saving of cement without losses in strength. Compressive strength and frost-resistance are improved, compared with use of high xylite-contg., SO3-deficient wet ash.
Patent DE-2436794-A1 (DE)
Title: Sliding cover for open lorry - with parallel support bars and tensioning arms operated by motors
Inventor: SCHWEMMLE HEINRICH
IPC: B60J7/06
Filed: 1974-07-31
Abstract: The top edge of the open lorry is fitted with guides along which special sliders, or wheels are slid. The sliders support a set of parallel struts to which the flexible cover (18) is fitted. The struts are joined by special supports (14) pivotted at the sliders and meeting at sprung hinge joints (15). The hinge joints are fitted to hollow support tubes (6) which are pressed against the underside of the cover by the supports. This prevents the cover from drooping over the load. When the cover is slid aside the special supports fold the cover into a compact position at one end of the lorry. The whole system can be operated from the cab using simple servo motors.
Patent DE-2436800-A1 (DE)
Title: Mine conveyor tension control system - tension cable alongside conveyor incorporates monitors and actuators for hydraulically operated compensators
Inventor: KUHN MAX
IPC: E21F13/10
Filed: 1974-07-31
Abstract: The mine conveyor with parallel conveyancing and coal plough chains, has a tensioning cable (61) parallel to them, in sections between tensioning arrangements spaced along the conveyor extending sideways from the conveyor, with the end of each cable section connected to a tension indicator (5) mounted on an extension (17) attached to the conveyor frame. This indicator has a plate attached to each cable and, opposed by a spring, and carrying a tension monitor and a contrast which operates an indicator mounted on a control panel, and also actuates a hydraulic control system by means of which a cylinder (80) can move the arm (10) which carries the extension (17). Also another frame (7) alongside this arm is controlled by a further cylinder which pulls a cable (70) attached to the frame (7).
Patent DE-2437278-A1 (DE)
Title: Clamping sleeve connector for machines subject to quick accelerations - bare cable end is fastened by sleeve crimping
Inventor: WANNER KARL DR ING
IPC: H01R4/18
Filed: 1974-08-02
Abstract: A conducting glue (7) is applied on the cable end (4). The glue is a thermosetting plastic adhesive with finely divided particles of a conducting material. The connection is made by dipping the cable's bare end (4) into the viscous conducting adhesive (7), and the fixing, especially crimping, in the metal sleeve (3) of the connecting element (1). Spaces between single wires and between wires and the inner wall of the sleeve (3) are completely sealed in the squeezing process. Surfaces of the wires and the inner surface of the sleeve are thereby reliably protected against corrosion. The bare metal cable end (4) and the enveloping sleeve (3) are formed with the adhesive (7) to realise a single block.
Patent DE-2439566-A1 (DE)
Title: Hollow conductor branching circulator - has at least three branches and has gyromagnetic bodies adjacent to ferrite plate
Inventor: HASHEIDER HUBERT DIPL ING
IPC: H01P1/39
Filed: 1974-08-17
Abstract: The circulator has at least three branching arms. It consists of a housing (1) provided on its broad inner side with a capacitive load (2, 3). Two gyromagnetic bodies (4, 5) are each fixed with their lower sides to the capacitative loads. The dimensions of the gyromagnetic bodies are arranged so that an air gap (6) exists between them, and a small ferrite plate (7) is situated in the gap. The plate is filled with metal or with a dielectric, and its thickness is less than or equal to the space in the air gap. Both symmetrical and non-symmetrical forms of the circulator are presented.
Patent DE-2443361-A1 (DE)
Title: Large scale electroplating plant using aprotic electrolytes - in inert gas atmos. for coatings of aluminium, gallium etc.
Inventor: HERRNRING HEINZ GUENTER DR PHI
IPC: C25D17/00
Filed: 1974-09-11
Abstract: In a plant for electroplating workpieces in baths operated under inert gas, the associated loading and unloading stations, together with any pre- or post-treatment stations, are operated by gas-tight chambers or air-lock chambers contg. a frame operated by remote control, and the chambers can be placed on pipe connections to the baths and processing stations to make gas-tight joints, the chambers and tanks may be moved w.r.t. each other when the chambers are raised, and flat shutter valves are used to close both the tank stations and the chambers, leaving a sealed intermediate space provided with inlets for sweeping the space with inert gas. The mechanised plant pref. includes explosion- and fire-prevention devices. Provides a large scale plant for depositing high purity coatings, e.g. of Al, Ga, In or Zn from oxygen- and water-free, aprotic electrolytes onto substrates of e.g. Be, Mg, Zn, Al, Ti.
Patent DE-2444415-A1 (DE)
Title: Support rail system for wall-mounting objects - comprises triangular shaped tubular sections fitting over supports
Inventor: HEIGHT FRANK SYDNEY
IPC: A47B96/06
Filed: 1974-09-17
Abstract: The support rail system for suspending articles horizontally comprises tubular sections (2) and supports (4) wherein the tube has two linings of identical cross-section with a basically flat front face (26) and a flat back face (28). The supports are provided with two oppositely aligned pegs (8) which fit into the adjoining tubular sections wherein the connection between the pegs (8) is formed by a collar (10) which is made integral with a support which has a horizontal arm (12) and a vertical arm (14) by means of which the support can be fastened against a wall. The cross-section of each peg (8) preferably forms a narrow triangle wherein the apex angle is rounded off whilst recesses are provided in the side walls.
Patent DE-2446022-A1 (DE)
Title: Electrostatic sprayer for liquid or powder - with optimum efficiency when using material of very low electrical resistance
Inventor: VOEHRINGER GERHARD FRIEDRICH
IPC: B05B5/03
Filed: 1974-09-26
Abstract: Electrostatic sprayer for liquid or powder comprises a spray nozzle (3) of insulating material releasably attached to the outlet end of an insulating plastics pipe which includes, connected to a nozzle bore system, feed channels (4) for coating material and air, and a high tension wire for at least one needle-like high tension electrode (13). The latter is mounted near the nozzle in the outlet or suction region of the atomising air. The electrode may be mounted centrally in the outlet region and extending in the direction of flow, or concentrically in a nozzle bore (3c).
Patent DE-2447842-A1 (DE)
Title: Graphite electrode for spark erosion machining - where cast pattern made from plastic contg corundum is used to shape electrode
Inventor: WITTENSTEIN HORST
IPC: B23H1/04
Filed: 1974-10-08
Abstract: Process for mfg. a graphite electrode for the spart-erosion machining of hollow profiles in tools by (a) making a positive pattern of the cavity; (b) clamping the pattern to a plate and moving it in a planetary and vertical manner to obtain an enlarged, negative, intermediate pattern; (c) casting an enlarged intermediate positive from the enlarged negative; (d) using (c) to produce a friction tool cast in a hardenable plastic contg. grinding corundum; (e) tool (d) is used to shape the electrode from a graphite block using a vertical and planetary motion. The novelty is that pattern (a) is mad made from a hardenable mixt. of plastic and grinding corundum, which is cast and used to form negative (b). A simple method of making an accurate graphite electrode saving time and skilled labour.
Patent DE-2452802-A1 (DE)
Title: Regenerating copper and magnesium silicate-contg catalysts - used for the hydration of acrylonitrile or methacrylonitrile to their amides
Inventor: DOCKNER TONI DIPL CHEM DR
IPC: B01J23/94
Filed: 1974-11-07
Abstract: Regeneration of Cu catalyst used in hydrating acrylonitrile or methacrylonitrile to their amides takes place by washing the inactivated catalyst with deminineralised and O2-free water, esp. condensn. water, at 20-150 (40-90) degrees C. Catalysts contain Cu and an Mg silicate, prepd. by pptg. an Mg cpd. with an alkali silicate in the presence of a Cu cpd. Wash liq. can be rejected without further purificn. and/or recycled to amide prepn. if it contains significant amide or nitrile quantities. Useful life of the Cu catalysts can be prolonged 2-10 times.
Patent DE-2456381-A1 (DE)
Title: Regulator for axial piston pump - has servo motor operated by auxiliary oil circuit via control slide
Inventor: WACHS EWALD
IPC: F04B49/08
Filed: 1974-11-28
Abstract: Adjustment is effected by a signal device, which controls a servo motor operated by an auxiliary oil circuit via a control slide with feed back via a spring. A servo piston with a piston rod is used as the signal device and is arranged in a cylinder chamber within an intermediate piston on the control slide. On one side, it is supported by a compression spring w.r.t. the intermediate piston and hence the control slide. On the other side, it is adjacent to the intermediate piston via a stop and encloses a control chamber which is connected with a regulator valve which fixes a control pressure.
Patent DE-2458245-A1 (DE)
Title: Finely-adjusted seal for cleaning cabinet door - airtight in normal use but leaky under suction from inside
Inventor: SCHMITZ RUDOLF
IPC: B08B13/00
Filed: 1974-12-10
Abstract: The cabinet is used for cleaning small mechanical, electro-mechanical, etc. components. A seal is already available for the downward-opening door (2) sealing in particular, its vertical sides with U-section strips (11) which were fitted, round the return ends (9) of the door and the cabinet, hinged at the upper end (13) and held in position by a spring (18). This seal, however, does not allow the air in the cabinet to be removed by suction, as certain cleaning regimes required. Rather than provide a separate valve and subject it to the rigours of the cleaning processes, the present invention proposes to elongate slightly the hole in the hinge plate (12) and adjust the spring (16, 18) to a nicety, so that when the suction is applied the normally airtight sealing strip moves slightly and admits air.
Patent DE-2502814-A1 (DE)
Title: IC engine automatic timing adjustment - has switching element in carburetter vacuum line to distributor vacuum box
Inventor: LOEFFLER HANS
IPC: F02P5/14
Filed: 1975-01-24
Abstract: The internal combustion engine ignition timing adjustment is carried out automatically and continuously in agreement with the load and speed of the engine. A switching element (10) for dampening and delay of the back pressure at the beginning of the reduction of the previously created vacuum, is incorporated into the vacuum line (12) from the carburettor (13) to the vacuum box (14) of the ignition distributor (15). The delay switching element (10) is in the form of pneumatic valve consisting of a housing with a cylindrical inner wall whose one side is connected to a conical seat surface with a stop cone with a guide stem, while a longitudinal bore leads through both the cone and stem. The moving valve parts may be held in their stop position by a lightly prestressed spring.
Patent DE-2504554-A1 (DE)
Title: Single-core heating conductor for outdoors heaters - has heat-resistant plastics sheathing for easy laying and safety
Inventor: DUESSEL KLAUS DIPL ING
IPC: H05B3/56
Filed: 1975-01-31
Abstract: The single-core heating conductor is intended for heating free surfaces, such as roads, sports grounds etc. and has the resistance wire enclosed in an insulating sheath (12) made of thermoplastic or elastomeric plastics that resists temperatures of about 70 deg.C over long periods. This first insulating sheath is enclosed in a sleeving (13) of a cross-linked plastics material resistant to high temperatures. The sheath and sleeving can be made in one piece from the same materia, or as two separate layers. A protective outer layer may enclose the sleeving, being also made of heat resistant plastics. The advantage lies in ease of laying and in safety.
Patent DE-2509481-A1 (DE)
Title: Pure N-acetylsalicyl amide prodn from salicylamide - by reaction with acetic anhydride in aq alkali soln., useful as analgesic
Inventor: TRAUTWEIN HANS DR
IPC: C07C233/90
Filed: 1975-03-05
Abstract: Process for preparing N-acetylsalicylamide (I) is prepd. by reacting a soln. of salicylamide (II) in aq. NaOH with acetic anhydride (III) at 0-50, esp. 5-25 degrees C, while maintaining the pH of the reaction mixt. at 9-12.8, esp. 9.5-11.5, by simultaneous addn. of NaOH soln; then acidifying with inorganic acid. (I) is an analgesic. Unlike process using org. solvents, this method gives high yields of very pure (I) (minimal amts. of polyacetylated or O-acetylated impurities).
Patent DE-2510130-A1 (DE)
Title: Imidazolyl alkyl-phenyl - (thio) ethers - active against dermatophytes, yeasts, protozoa bacterial and fungal diseases
Inventor: STREHLKE PETER DR
IPC: C07C45/71
Filed: 1975-03-06
Abstract: Imidazole derivs. (I) their salts and medicaments contg. (I): (where X is a direct bond or -(CH2)n-CH-R1; n is 0, 1 or 2; R1 is H, 1-6C alkyl, phenyl opt. substd. by halogen, 1-6C alkyl or -alkoxy or NO2; R2 and R3 are H, 1-10C alkyl, 1-6C alkoxy or alkylthio, halogen or NO2 or R2+R3 is C4H4; R4 is 3-6C alkynyl, phenyl opt. substd. by halogen, NO2, CF3, 3-6C alkynyl, 1-6C alkyl or alkoxy, phenyl (1-4C alkyl) opt. substd. in the ring by halogen, NO2, CF3, 1-6C alkyl or alkoxy; R4 is also 1-6C alkyl when n is O, and X is O, S or NH) are active against dermatophytes, yeasts, protozoa, Gram-positive and negative bacteria and diseases caused by fungi.
Patent DE-2517918-A1 (DE)
Title: Diamino-anthraquinone-carboxylic acid ester prepn. - by reducing corresp. amino-nitroanthraquinone-carboxylate with hydrazine in organic solvents
Inventor: EPPLE GERHARD DR
IPC: C09B1/22
Filed: 1975-04-23
Abstract: acid esters of formula (I): (where R is 1-10C alkyl, 5-8C cycloalkyl, 3-11C alkoxyalkyl, 4-12c dialkylaminoalkyl, 7-10C phenalkyl or phenoxy-2-4-c- alkyl) are prepd. by reduction of the 1-amino-4-nitroanthraquinone-2-carboxylic acid ester, (II), with hydrazine in organic solvents, pref. at 20-150(esp. 60-100)degrees C, using 1.5-5 mol. hydrazine/mol. (II). (I) are used for dyeing and printing polyester, acetate, polyamide and polyacrylonitrile fibres. Some (I) can be used as blue dyes in transfer printing. By-products are only N2 and H2O, and mother liquor need not be worked up. On starting from 1-amino-4-nitro-anthraquinone-2-carboxylic acid, prepn. of acid chloride, esterification and reduction, can be effected in one reactor.
Patent DE-2525777-A1 (DE)
Title: Reed thatch roofing panels - of chipboard with reed thatch cemented on with polyester adhesive
Inventor: HARM HELMUT
IPC: E04D3/35
Filed: 1975-06-10
Abstract: The purpose is to enable the traditional reed thatch to continue to be used as a roof covering material, without excessive expenditure on labour and materials. For this purpose the reed thatch is cemented onto a panel, instead of being stitched directly onto roof battens; panels are of standard sizes, easily handled, and suitable for a rafters interval of 80 cm; chipboard is suitable material. Waterproofing is supplied by the polyester, or similar plastic, used as adhesive - rather than bitumen, which would involve fire hazards. The reed thatch is between 5 and 10 cm thick. Pressure causes the edges to slop over the panel edge, so as to give the completed roof a homogenous cohesive structure.
Patent DE-2528115-A1 (DE)
Title: Dewatering in double cone batch centrifuge - improved by injecting dry material at batch end to displace residual water
Inventor: WIMMER OTTO
IPC: B04B11/04
Filed: 1975-06-24
Abstract: Process for improved control of separation in double cone batch centrifuge with slurry feed entering along axial pipe, involves introducing into the central region of the bowl when the initial charge has been centrifuged, a further charge of recycled solid material. Alternatively an additional different material can be added or compressed air need to displace residual liquor. The processed material is held in a suitable vessel so that it can be pumped back to the centrifuge inlet. A pump is provided for this. A three way valve is included in the feed line to allow the recycle to be fed. The degree of filling can be measured by a pressure sensor on the inlet holes on the central shaft. The centrifuge can be used for clarifying, separating classifying and thickening of liquids and slurries. Normally the batch is complete when the liquor outlet begins to show solids present in it. With the conical bowl there is a pool of water left in the centre which raises the effective final moisture content of the product. The system described allows this pool to be displaced.
Patent DE-2529534-A1 (DE)
Title: Fluid driven power producer - for converting kinetic energy of accelerated fluid into electrical energy
Inventor: SCHNEIDER DANIEL J
IPC: F03B17/06
Filed: 1975-07-02
Abstract: Apparatus, for use in converting the kinetic energy of an accelerated fluid into electrical energy, comprises: (a) a housing; (b) two parallel axles detachably supported by the housing and capable of rotation within the support means therefor; (c) two parallel wheels positioned on each of the axles. The wheels on one axle are in the same vertically extending planes as the wheels on the other axle; (d) two belts, one of which connects the two wheels in one place and the other belt connects the other two wheels in the other plane; and (e) a series of fluid dynamically designed blades each one of which is detachably connected at the opposite ends thereof respectively to the two belts.
Patent DE-2530040-A1 (DE)
Title: Radio transmitter withAM grid modulation - has preamplifier synchronised with modulation signal to raise efficiency of transmission
Inventor: BATSCHVAROV HRISTO ATANASSOV
IPC: H03C1/22
Filed: 1975-07-04
Abstract: The radio transmitter is used for SW, MW and LW outputs and has AM grid modulation. It has a high efficiency independent of the modulation factor and it has low nonlinear distortion even at large modulation factors. The modulator controls the main power amplifier and is also connected via a diode to the sync. control circuit that controls the preamplifier. The sync. control circuit contains a transistor in series with the cathode circuit of the preamplifier (2) and connected by its base to the rectifier. The output amplitude of the preamplifier which is used to drive the grid of the power stage (3) is therefore synchronised with the modulation signal from the modulator (6).
Patent DE-2534826-A1 (DE)
Title: Spring loaded stretcher platform for ambulances - having hydraulic piston cylinder aggregate and pneumatic energy store
IPC: A61G3/00
Filed: 1975-08-05
Abstract: The sprung stretcher platform for ambulances includes a hydro-pneumatic spring with the platform (12) supported on its hydraulic piston-cylinder combination (14) and the compression fluid acting over a membrane (20) or a piston onto the pneumatic energy store (19) coupled to the cylinder (14). An adjustable throttle (25) acting only in the directions of flow may be positioned between the piston-cylinder and the pneumatic energy store. A check valve (27) is also provided. The platform (12) is arranged so that one end can swivel about a lateral shaft (A) whilst the free head end (12a) is supported on the hydropneumatic spring (13). The energy store needs only minimal charging and is equally effective for very heavy people as well as lighter patients.
Patent DE-2537169-A1 (DE)
Title: Location of ties for cable looms - involves using slotted blocks as part of assembly board and ties may be threaded through grooves
Inventor: SCHAELING WOLFGANG
IPC: H02G3/32
Filed: 1975-08-21
Abstract: The application is principally to the manufacture of cable looms used in the wiring of road vehicles, and has as its objective the more precise and firmer location of the ties. Such location is particularly important at tee-off points where subsequent handling may cause the ties to slip. On the wiring board mounting blocks (10), made of wood or other suitable material, are located. Each block has a channel wide enough to contain at least all the wires required at that point. Each block also has a groove following the contour of the channel through which the tie can be threaded. With all wires in position the tie is inserted at the start (14) of one groove and pushed through until it emerges (15) at the other end. At a tee-off it can then be crossed (14a, 15a) over the junction before tying off to give a secure hold. On conclusion of the work the loom can readily be lifted off the blocks.
Patent DE-2538279-A1 (DE)
Title: Dubbing leather and pelts - with materials prepd. by sulphonating alkyl aromatic cpds. and neutralising or hydrolysing prod.
Inventor: HOLLSTEIN MARTIN DR
IPC: C14C9/02
Filed: 1975-08-28
Abstract: Dubbing agents, (A), for collagen, contg. fibre materials are prepd. by sulphonating alkyl-substd. aromatic cpds., (I), and neutralising or hydrolysing the sulphonation products. Pref. (I) are mono- and di- 14-20 C-alkylbenzenes. (A) are used partic. for dubbing leather and fur pelts. In an example, a dubbing material for fat-liquoring Cr- tanned split cowhide was prepd. Di- 14-20 C-alkylbenzene mixt. was sulphonated 3.5 hrs. 30 degrees C with gaseous SO3 diluted with N2. After 2 further hrs., prod. was neutralised with conc. aq. NH3 soln. at 60-70 degrees C.
Patent DE-2550672-A1 (DE)
Title: Press for multiple pressing of tablets - has horizontal rotating worktable and pressure roller providing stamping action from above and below
Inventor: VILLEE FREDDY PIERRE GERARD
IPC: B30B11/08
Filed: 1975-11-12
Abstract: The press includes a horizontal work-table of circular form (1) which rotates under a reciprocating press. The tables are pressed out into peripheral depressions by a pressure roller (18) rotating about a horizontal axis; this pressure roller is adjustable in height. The tablets may have facing stamps impressed both from the upper side and the under-side operated by plungers along the same vertical axis. Completed tablets rest in a hollow chamber in the worktable are may be removed by another ram operated by a cantilever beam actuated by the same drive as the pressure rollers.
Patent DE-2551873-A1 (DE)
Title: Double safety switch system - has two separate switches in series operated in succession by same operating pin
Inventor: FRITSCH KARL DIPL ING
IPC: H01H3/00
Filed: 1975-11-19
Abstract: The first switch is a snap-action switch operated by a pin and loaded by a spring. The second switch is in series with the first. The snap-action switch is operated by the pin first, and then the other switch. The second switch operates a make contact (17, 28), and the load (34) is in series with the first switch (4, 23, 25) and in parallel with the second (17, 28), connected to terminals (24, 29). As both switches are connected in series, when both of them are closed, an isolating device (26, 40) is inserted in series and causes a permanent interruption of the circuit.