baber/WOPTO huggingface dataset:
Patent DE-2408977-A1 (DE)
Title: Spiral pipe welding machine - for bending and welding metal strip using two burners
Inventor: CLAYTON ARTHUR
IPC: B21C37/12
Filed: 1974-02-25
Abstract: A spiral-pipe welding machine, the novelty being that it comprises a guide-track along which the metal strip travels round a bending edge and past a roll parallel to, and aligned with, the bending edge so that the strip forms continuous adjacent spirals when it is aligned at an angle w.r.t. the bending edge; two burners are provided for welding the adjacent edges of the strip together. The angle of the guide-track is pref. adjustable w.r.t. the bending edge and connected to a guide-slot, while the roll can be adjusted w.r.t. the bending edge; the guide-track is pref. fitted with straightening-and driven-rolls. A compact and inexpensive machine, the small number of components simplifying repairs.
Patent DE-2416739-A1 (DE)
Title: Dispenser of dry, semi-dry and soft food for fishes - has drive motor to shaft associated with cylindrical housing closed by disc plates
Inventor: BRUNNER GERHARD
IPC: A01K61/80
Filed: 1974-04-05
Abstract: The housing is closed at the top and bottom by disc-shaped plates, rigidly fixed together. Inside the housing is a shaft mounted in the discs. A drive motor is screwed onto the socket on the top plate, and rotates the shaft which is joined just above the bottom plate with a disc. The bottom of the shaft is rigidly fixed to another disc, so that the shaft and the two discs rotate together. A ring forms a spacer-sleeve for the base-plate. The food is poured through an opening in the cylinder, to drop onto a funnel, where it falls through a central hole onto the disc to form a conical heap. The disc has an elongated opening positioned concentrically to the centre of the disc. The base plate also has a hole situated the same distance from the pivot axis as the hole in the disc. A tension spring is fixed by means of a block to the circumference of the lower disc, and rests against a pin on the bottom plate of the container.
Patent DE-2417805-A1 (DE)
Title: Removable formwork for concrete room unit - has formwork split to enable moulded shell to be removed on pallet
Inventor: GAIL JOSEF
IPC: B28B7/22
Filed: 1974-04-11
Abstract: A formwork arrangement for casting prefabricated concrete rooms, has roof and sides carried on an arrangement of supports so that after catches attached to their inside have been released, the assembly can be separated into two portions along a longitudinal dividing line, freed from a fixed core, and a supporting slab, mounted on a pallet on wheels, wheeled out, carrying the cast, open ended unit with it. The support arrangement includes a set of pivot arms so that the formwork halves can be inclined at an angle to assist the release.
Patent DE-2418158-A1 (DE)
Title: Working platform on telescopically extensible mast - with sectional endless circulating draw organs coupled to adjacent sections, and drive
Inventor: LANGE KLAUS
IPC: E04G1/22
Filed: 1974-04-13
Abstract: The elevated working platform is mounted on a sectioned telescopic mast, one section being a support tube. Each of the sections between this and the top one has a draw organ which circulates endlessly over its extension range, each length of this being coupled to an adjacent section in the sense of a common direction of movement. The section next to the support tube can be moved by a drive assembly which may comprise one or more hydraulic cylinders. There may be several draw organs round each mast section, with guide rollers between them. A high degree of security is provided by a light assembly with a simple drive.
Patent DE-2421290-A1 (DE)
Title: Digital-analogue convertor - has a storage register whose outputs deliver digital voltage pulses
Inventor: PALZ GUENTER DIPL ING DR
IPC: H03M1/00
Filed: 1974-05-02
Abstract: The voltage pulses are applied to semiconductor analogue switches in a resistive network insulated from the register at least for d.c. An electroluminescent component is provided in the register all outputs, converting voltage into light signals, and the analogue switch has a photodetector responding to a light signal. The converter has further a 2R-R resistor network and a d.c. voltage source. Shift register has two outputs for each bit, and a unit consisting of ligh-emitting diode and photodetector is connected to each output; photodetector in one of these switches is between one terminal of the d.c. voltage source and one of the R-resistors, and the other photodetector lies between the d.c. voltage source other terminal and the same R-resistor.
Patent DE-2421466-A1 (DE)
Title: Perpetual calendar with indicating cards - each card has display and concealed position in holder
Inventor: SCHARRER HANS WILHELM
IPC: G09D3/08
Filed: 1974-05-03
Abstract: This perpetual calendar comprises a holder, which may be free-standing or wall-mounted, containing three sets of cardboard, plastic or metal, circular or oblong cards. One set is for dates one for days of the week and the third for months. All the cards have a cut-out section by means of which they are mounted in the holder. This is so shaped e.g. with a circular and an elongated section, that each card can be held upright by one section or permitted to revolve around its axis. In the upright position the card has an indicating section visible, otherwise it is concealed in the holder.
Patent DE-2424145-A1 (DE)
Title: Guide system for drawers - has rails engaging with unilateral horizontal play to allow manu tolerances without canting
Inventor: SCHOCK KARL
IPC: A47B88/04
Filed: 1974-05-17
Abstract: The guide system for the drawer comprises a pair of rails on each side of the drawer wherein the guide rail is mounted on the drawer and the slide rail is mounted on the frame so that the guide rail forms the ouer rail and engages round at least three sides of the inner rail formed by the slide rail. This inner rail has two guide faces which form an angle with the horizontal and lie opposite corresponding faces of the outer rail without any horizontal play in the case of one pair but with horizontal play in the case of the other pair.
Patent DE-2428623-A1 (DE)
Title: Cooling system for internal combustion engine - injects liquid into intake air in order to reduce combustion temperature
IPC: F02M25/00
Filed: 1974-06-14
Abstract: The liquid is contained in a vessel which has a connection to the air intake terminating either before the carburettor, after the carburettor or within the carburettor. The connecting pipe contains a throttling valve so that the quantity of liquid injected can be automatically controlled and the control is arranged so that the quantity of liquid is proportional to the air volume drawn into the engine. The liquid used is a nitrate, oil, molybdenum sulphide or other liquid which does not interfere with the combustion process but reduces the peak temperature in the cylinders. This avoids coke formation and the burning of valve seats and prolongs the life of the engine.
Patent DE-2431006-A1 (DE)
Title: Pulse controlled on-off switch - has two junction field-effect transistors whose drain-source paths are used for switching
Inventor: PRECHTL ROBERT ING GRAD
IPC: H03K17/06
Filed: 1974-06-27
Abstract: The drain-source paths are connected in series, and JFET gate-source paths are inserted in parallel into a control circuit, so that when switching pulses are applied, the gate current does not affect the switching path. The control circuit contains a transformer feeding the gate-source paths; switching pulses are applied to its primary winding, and a capacitor is inserted between it and the gates of the JFET for blocking voltage generation; a limiter is provided in parallel with the gate-source paths limiting the blocking voltage to a specified value; a voltage limiter is connected in parallel with the gate-source paths which limits the gate voltage to a specified value when gate current flows.
Patent DE-2434095-A1 (DE)
Title: Oxidn. of sulphur dyes on cellulose fibres - using oxygen-contg. gas and opt. substd. 1-3 ring quinones as catalysts
Inventor: HEID CHRISTIAN DR
IPC: D06P1/22
Filed: 1974-07-16
Abstract: Cellulose textiles dyed or printed with sulphur dyes are oxidised by oxygen-contg. gas in presence of catalysts consisting of 1-3 ring quinones and/or their leuco forms, which may be substd. by one or two methyl, ethyl or Cl gps., and by one or two anionic salt-forming gps. Poor wash fastness caused by oxidn. with H2O2 is avoided. The treatment does not cause dulling of the shades, hardening of the textiles by metal residues, hydrophobic effects of effluent problems, as occurs with bichromate or bichromate/copper sulphate treatments.
Patent DE-2434745-A1 (DE)
Title: Hot-drinks machine with hot-plate and vaporisation unit - has evaporation tube embedded adjacent heating tube for effective heat transfer
Inventor: OHNMACHT HELMUT
IPC: A47J31/54
Filed: 1974-07-19
Abstract: The coffee maker or other hot drinks machine comprises a vapourisation and heating unit (1) which consists of a hot plate (2), an evaporation tube (3) and a tubular heating member (4) wherein the latter two are embedded right next to each other so as to be completely enclosed in the good heat-conductive material of the hot plate (2) so that an optimum but inexpensive heat transfer is achieved between the hot plate (2), heating element (4) and evaporation tube (3). The heating element (4) and evaporation (3) can be cast in one work step into a one-piece injection moulded member wherein the evaporation tube is preferably mounted directly above the heating element.
Patent DE-2436623-A1 (DE)
Title: Control device for coherent optical radiation from laser - involves nonlinear crystal and with means for variation of its optical properties
Inventor: HUBER HANS-PETER DIPL PHYS
IPC: G02F1/35
Filed: 1974-07-30
Abstract: The control means are designed to ensure phase matching between optical waves passing through the crystal, and there are further control means which are used to regulate and maintain constant the humidity content of air surrounding the crystal. The crystal and the means for variation of its optical properties and means for air humidity control are mounted in a gastight housing sealed against external air, and form a constructional unit. The incoming coherent light beam (17) enters the apparatus through a window (19). The crystal (13) is mounted between blocks (12) and has inclined surfaces so that the exit ray is parallel to the entering ray but is shifted sideways. The crystal and mounting blocks are surrounded by a heat insulating jacket (14).
Patent DE-2456429-A1 (DE)
Title: Air humidifier with water tank - has heating element to produce directly superheated steam and prevent furring of element
Inventor: EXARCHOU NICOLAS
IPC: F24F6/02
Filed: 1974-11-29
Abstract: The air humidifier comprises a water tank, and above a water mark (9) a radiation-type having element (11). Pref. heat radiation in the direction of the water surface (9) is controlled by a parabolic reflector. The heating element may comprise a Cr-Ni heating element, or an infra red source of which the surface remote from the water surface is gold-plated, or a ceramic incandescent body of which the cross-sectional surface is in the hape of a ring segment and of which the surface remote from the water surface is shielded by the reflector.
Patent DE-2457659-A1 (DE)
Title: Cylindrical guiding cage for valve closing element - is made from perforated flat strip by rolling and welding
Inventor: BAELZ JUERGEN DIPL ING
IPC: F16K3/34
Filed: 1974-12-06
Abstract: The blocking valve for liquid or gaseous media has a separating wall within a housing between inlet and outlet. A perforated cage is fitted between this separating wall and the outlet end for guiding a cylindrical closing element. This cage (6) is made by rolling a flat strip material into a cylinder. The perforations (14) are made into the strip before rolling. The rolled strip has a longitudinal welded joint which is machined. Reinforcing ribs (25) can be fitted in the sleeve bore. This arrangement is cheaper to produce than a sleeve made by casting and machining.
Patent DE-2457990-A1 (DE)
Title: High speed fluid cumulative nozzle - is forged after machining from martensiticaly hardenable annealed steel blank
Inventor: EDNEY BARRY E
IPC: B21K21/08
Filed: 1974-12-07
Abstract: Cumulation nozzle is mfrd. with or without a water reservoir at its entry side, for use in a device for producing a high-speed liquid stream. A blank of high-strength martensitically hardenable steel is machined in its annealed state, and is pushed with a cylindrical or multiconical bore onto a forging mandrel of hard metal, shaped corresp. to the inner contour of the nozzle to be formed. The blank is forged over the mandrel by a high number of hammer strokes on the outer surface. The blank is turned with the mandrel and is advanced in the direction of the axis of rotation. The finished workpiece is pulled off the mandrel and is after-treated. A well-defined inner contour can be formed in a single operation.
Patent DE-2461863-A1 (DE)
Title: Thin wall pipe construction - has three members of low wall thickness jointed to resist internal and external loads
Inventor: SCHLEICH JOSEF DIPL ING
IPC: E02B9/06
Filed: 1974-12-30
Abstract: Pipes are constructed from three shells assembled to a cylindrical shape, with a base shell to which two upper shells are joined at support points, the two upper shells being jointed together at a crown joint. Pref. the joint axes coincide with the axes of the shells, and the arc length of the base shell is equal to that of the upper shells, or greater or smaller. The base shell may include a groove or an edge extending towards the bottom at the joints, and may increase in thickness towards the joints in which case the cylinder axis does not coincide with the shell axis at the joint.
Patent DE-2500826-A1 (DE)
Title: Telescopic shock absorber for car - has auxiliary non-return valve preventing hysteresis and aeration problems
Inventor: LEPPICH ERHARD DIPL ING
IPC: F16F9/34
Filed: 1975-01-10
Abstract: Hysteresis which occurs just as the piston of a hydraulic shock absorber changes direction at the end of its stroke is eliminated by putting an additional non-return valve in the flow path. The standard spring loaded valve (7) permits the desired damping characteristics for upward displacement of the piston (2). Hydraulic fluid flows through the channel (6) and is then discharged through the additional valve (8). This simple non-return valve is of low inertia, so that when the piston changes direction, it immediately closes. The main valve takes a longer time to close and it is this factor which normally causes the hysteresis in the damper force characteristic. Since the two valves are in series, the snap action of the second valve eliminates the hysteresis.
Patent DE-2502582-A1 (DE)
Title: Gas-agitated mixer for powdered to granular materials - with lower gas inlet and upper filtered gas outlet
Inventor: GEISS DIETER
IPC: B01F33/40
Filed: 1975-01-23
Abstract: The agitation gas inlet at the lower end of a mixer for powdered to granular solid materials, which includes a housing having a filtered gas outlet in its upper zone, consists of an upwardly expanding conical annular passage, in which guide plates extend from the inner to the outer housing wall. The guide plates extend through the passage with an inclination to the longitudinal axis of the mixer vessel. Used for mixing of particulate solid materials, including those having varying particle size structure or bulk density. Comparatively low press. gas is required (0.2-6.0 bar). There are no large expensive moving parts. Since the discharge valve does not have to open against the weight of the charge the size of the mixing vessel is not limited.
Patent DE-2502864-A1 (DE)
Title: Cutting system for chipboard sheets - has system for cut edge glue application and transverse strip cutting
Inventor: LUECKING WILFRIED
IPC: B27B5/065
Filed: 1975-01-24
Abstract: The system for cutting or splitting large plates, plastic chip board type plates, allows the cut edges to be glued. The large plates are initially arranged or subdivided into longitudinal strips, the long edges of which are eventually glued. Each individual longitudinal strip can then be cut up into transverse sections by passage through the appropriate cutting and sectioning device. This consists of a series of individual saw blades set across the feed direction for the plates or strips. The system can handle chipboard sections in excess of 20 metres, and provides cut edges of increased strength.
Patent DE-2520130-A1 (DE)
Title: Electrolytic capacitor partial or complete encasement method - relates to capacitors with contacts on their end faces and accommodates flat or layered windings
Inventor: UTNER FERDINAND
IPC: H01G2/12
Filed: 1975-05-06
Abstract: The electrolytic capacitors are encased in a plastic coat produced from a plastic fluidised bed. Capacitors are heated by an inductor (1) in a container with fluidised plastic powder (6). Depending on the required degree of encasing, capacitors are passed through the inductor, so that the metallised foils (3) of layered capacitor, or flat sides of the flat wound capacitor form an angle with the magnetic field (4) between 0 deg. and 90 deg. the pack of flild (3 is electrically connected to a terminal wire (8). the inductor plates are flat with square box section reinforcing attachments.
Patent DE-2522386-A1 (DE)
Title: Electrical insulation lacquer for wires - comprises polyester imide and diacetone alcooccohoool and or glycol solvent
Inventor: OHM KLAUS DIPL CHEM DR
IPC: H01B3/30
Filed: 1975-05-21
Abstract: Heat resistant, electrical insulation lacquer for coating wires comprises a polyesterimide modified by incorporation of tris-(2-hydroxyethyl)- or tris-(2-carboxyethyl)-isocyanurate and a solvent, and is characterised in that the solvent is diacetonealcohol and/or glycols or their esters or ethers. The resin has good solubility in the solvent, better than e.g. cresol, and solns. have lower viscosity.
Patent DE-2527410-A1 (DE)
Title: Open end spinning cup with coaxial drum - located in housing having spiral fibre supply groove which terminates in cup
Inventor: DREGER KLAUS-DIETER
IPC: D01H4/08
Filed: 1975-06-20
Abstract: The housing is provided with a frusto-conical surface for the drum and the surface has a spiral fibre guiding groove extending from the fibre supply opening and terminating at a housing lip in the cup interior. Used for spinning yarns from sensitive fibres. Arrangement of fibre supply duct prevents formation of detrimental stresses in fibres.
Patent DE-2529439-A1 (DE)
Title: Eutectic aluminium silicon alloy for engine pistons etc. - where zirconium is added to obtain pronounced improvement in creep strength
Inventor: DEUBELBEISS ERNST ING GRAD
IPC: C22C21/02
Filed: 1975-07-02
Abstract: Eutectic Al-Si alloy, pref. used for components employed in internal combustion engines, esp. pistons, and with compsn. 11-13% Si, 0.8-1.5% Cu, 0.8-1.3% Ni, 0.8-1.3% Mg, rest Al. Specifically the alloy also contains 0.01-0.25% Zr. The alloy pref. also contains is not >0.7% Fe, is not >0.5% 0.5% Cr, is not 0.5% Co, is not >0.3% Ti, is not >0.3% Mn, and/or is not >0.3% Zn. The addn. of Zr improves the high temp. properties of the alloy as indicated by the creep strain limit test over extended periods of time.
Patent DE-2531387-A1 (DE)
Title: Bonding cylinders for model aircraft fuselages - using flanged stepped lap joint and filling intermediate space with resin
Inventor: NEUHIERL HERMANN DIPL CHEM DR
IPC: B29C45/14
Filed: 1975-07-14
Abstract: Bonded assemblies, and partic. those of cylindrical components for model aircraft, use a male stepped joint of reduced dia. on one component to fit into the bore of another component, the male step has an o.d. only slightly less than the i.d. of the latter and an inward flange at the end, thus forming an intermediate space which is filled with injected thermosetting resin. Proves high strength joints between components which cannot be glued or welded together.
Patent DE-2533802-A1 (DE)
Title: Contact plate for steering column switch in motor vehicles - has several contact strips on insulating plate and has enlarged contact areas
Inventor: ERDELITSCH HERBERT
IPC: H01H1/58
Filed: 1975-07-29
Abstract: The switch unit has contact strips form fixed and connecting contacts. There are several contact strips (20-23) which are interconnected by links (18), thus forming one single unit. There is an insulating plate (10) which has holes (12) passing right through the plate under the links (18), through which subsequent separation of contact strips is possible. Movable contact elements may be lowered into contact with the fixed strips. Enlarged square or rectangular areas (15) may be used to accommodate these contacts and they may have down turned edges (16).
Patent DE-2537174-A1 (DE)
Title: Lateral damping for vehicle seat - with pendant damped suspension on vertically sprung frame able to accommodate different driver weights
Inventor: STEIGERWALD RUDOLF ING GRAD
IPC: B60N2/39
Filed: 1975-08-21
Abstract: The seat shell is supported on two pendant levers (9, 10) pivotted about two axes on an upper support bar (11). The levers are further fitted with spring frams (19) to hold them on a central position when displaced laterally. The upper bar is at the top of a vertical support with vertical damping. A damper (23) braces the frame laterally. The seat is thus sprung in all directions and can be used on construction vehicles, especially on rough ground. The spring pressures can be adjusted to accommodate different weights of drivers.
Patent DE-2540173-A1 (DE)
Title: Ethylene and 1,2 propylene oxide esterified block copolymer - for oil in water emulsion breaking with no salt pptn.
Inventor: LIEBOLD GERT DIPL CHEM DR
IPC: C08G63/87
Filed: 1975-09-10
Abstract: Prepn. of esterified block polymers of ethylene oxide and 1,2-propyleneoxide comprises esterifying block polymers of formula A-B-A (I) (A=a polyethyleneoxide block, B a polypropylene oxide block) in the presence of acid catalysts, with dicarboxylic acid at high temperature. The block copolymers are esterified using 0.5-3 wt.% of (a) >=1 8-12C alkylbenzene sulphonic acid or (b) a 4-10C alkane or alkene carboxylic acid, without intermediate neutralisation. The block copolymers do not need to be neutralised before esterification and no salts are pptd. when the final ester is used to break up oil in water emulsions. The esters can be used to break up oil emulsions from various sources. In an example 1 mol of a block copolymer obtd. by alkaline oxyethylation of 1,2-propyleneoxide, was esterified, without neutralisation, at 150 degrees C with 0.5 mol adipic acid and in the presence of 0.18 Mol % p-n-dodecylbenzene sulphonic acid to give an ester. This is suitable for breaking up oil in H2O emulsions without pptd. of salts.
Patent DE-2541664-A1 (DE)
Title: Vacuumetric anti-leakage device for double-walled tanks - incorporates probe, fed by suction air, to activate alarm
Inventor: SCHMUKI FRANZ DIPL ING
IPC: B65D90/503
Filed: 1975-09-18
Abstract: The anti-leakage device is for double-walled tanks, the inner wall consisting of a synthetic foil. The tanks are for the storage of fluids, esp. hydrocarbons, containing highly volatile elements, the flash point of which is below 55 deg.C. The device contains a pump, to suck air or any other medium from the space between the double walls, and an alarm unit, which reacts, when there is a leakage. A probe, reacting to the vapours or gases of the stored fluid, is supplied with the evacuated air. The probe activates the alarm via a control, when any gases are present. The probe is of the type, in which the gases alter the electrical characteristics, or actuate an electrical switch. It is connected directly or via an amplifier, to a relay which has a contact, to switch an acoustic and/or optical alarm.