baber/WOPTO huggingface dataset:
Patent DE-2420040-A1 (DE)
Title: Thermo-syphon evapo11twz 6or solvent - with holding vessel and tubular steam heater at side
Inventor: MCLAGAN RUSSELL G
IPC: B01D3/04
Filed: 1974-04-25
Abstract: Excessive frothing of impure solvent is avoided by having large vessel to encourage froth disengagement and this is assisted by spray carry over from the thermo-syphon effect. The solvent is heavier than water and less volatile, so water tends to flash off first. 50-60 psi. steam is used. A water vapour pressure relief line is provided and the top of the vessel has a fault in annular condenser. Condensate flows through a separator to take off the water layer. The initial level is controlled so that the bottom 1/3 of the evaporator is flooded, this however can either by left to find its own level depending on the contamination or for only slight contamination, automatic control can be used.
Patent DE-2421136-A1 (DE)
Title: Economy excitation cct for electromagnets - has full-wave rectifier and switches to half-wave to supply holding current
Inventor: WALLOSCHKE RUDOLF
IPC: H01F7/18
Filed: 1974-05-02
Abstract: The excitation circuit is intended for overexciting an electromagnet and has the electromagnet coil coupled to the direct current output of a full-wave rectifier diode bridge. A break contact is connected between the two diodes in the bridge that would normally be connected to the negative direct current output terminal. The break contact is operated by the electromagnet and switches the bridge full-wave supply to the magnet over to half-wave supply, thereby saving considerable energy by using the half-wave, and not the full-wave overexcitation current, as the holding current for the electromagnet.
Patent DE-2429194-A1 (DE)
Title: Orthobenzyl toluenes prepn. by a condensn. reaction - of o-xylyl halides and substd. benzenes in acids
Inventor: EILINGSFELD HEINZ DR
IPC: C07C17/26
Filed: 1974-06-18
Abstract: Prepn. of o-benzyltoluenes (I) by condens. of (II) with (III) (where R1, same or different, is H or halogen; R2 is as R1 or an aliphatic or aromatic radical) in the presence of H2SO4 or a mixt. of H3PO4 and an org. sulphonic acid RSO3H, opt. with cpds. contg. Zn, Sn, or B. Method is less hazardous, gives good yields without need if complicated catalysts, and shows consistent results. Cpds. (I) are inters. e.g. for dyestuffs.
Patent DE-2429306-A1 (DE)
Title: Auxiliary load bearing prefabricated concrete roller-shutter case - with light steel girders partly cast in and concreted to ceiling
Inventor: WLATKOWITSCH NIKOLAUS
IPC: E04C3/20
Filed: 1974-06-19
Abstract: The roller-shutter case is prefabricated from concrete, and contributes to load bearing functions, and is reinforced in its side walling, the object here being to facilitate a perfect connection between the reinforced concrete ceiling and the case, which acts as a laminar beam, with fissure formation prevented even where very high widths are spanned. One or more thin girders of steel are fitted in the area of the upper side, partially cast in with the case and partially freely projecting from it, so as to make it possible to cast them with site concrete together with the ceiling structure. The steel girders may be firmly connected to the additional reinforcement, and may have an upper chord with zig-zag strutting attached to it.
Patent DE-2429522-A1 (DE)
Title: Pneumatic tool to force connector onto tube end - single-acting piston forces jaws together and is returned by spring
Inventor: KAISER DIETER ING GRAD
IPC: B25B25/00
Filed: 1974-06-20
Abstract: A tool for forcing a connection piece onto the end of a tube has a cylindrical housing (12) with an outer jaw (10) fixed to it, and a moving jaw (36) attached to a spindle passing through the middle, the spindle being actuated by a pneumatically driven piston at the other end of the housing. Each jaw is forked, the shape of the forks being semicircular to match the shape of the tube and the connection piece. The spindle carries a set of five pistons (28, 30 etc.) which form chambers (22, 24 etc.) between them. The control valve operating beyond them is single-acting, to force the inner jaw (36) towards the fixed outer jaw (10). When the valve is cut off, a spring (52) between the jaw and the first piston (28) returns the jaw to an open position.
Patent DE-2433176-A1 (DE)
Title: 2-Halopyrimidine derivs - prepd. from cyanoimino acetates via N-cyano cyanoimino acetates
Inventor: HIRAYAMA TADAMASA
IPC: C07D239/42
Filed: 1974-07-10
Abstract: 2-Halopyrimidine derivs. (I; R = lower alkyl1 X = halo) are prepd. by reacting cyanoimino acetates, N is approx. = CCH2C(OR) = NH.HM (M = mineral acid residue), with N is approx. = CNH2 followed by reaction of resulting N-cyano cyanoimino acetates, N is approx. = CCH2C(OR) = NC is approx. = N, with HX. In an example, a suspension of 2.6 g. N is approx. = C-CH2C-(OMe)=NH.HCl 2.6, N is approx. = CNH2 1.68, and molecular sieve 4 angstroms 5 g in C6H6 was stirred 5 hr. at 25 degrees C to give 2.26 g N is approx. = CCH2C(OMe)=NC is approx. = N (II). BF3-Et2O (0.14 g) was added to 1.23 g II in C6H6-Et2O, 1.07 g 20.5% HCl-Et2O added at 25 degrees C, and the mixt. reacted 6 hr. at 25 degrees C to give 1.48 g I (R = Me, X = Cl).
Patent DE-2434264-A1 (DE)
Title: Ballast circuit for fluorescent lamps - has choke and electrodes which are heated using transformer and no starter is fitted
IPC: H01F37/00
Filed: 1974-07-17
Abstract: The laminated cores (4 and 5) of the transformers (2, 3) are mounted in a case. Common, one-piece laminations are used for both the choke and transformer; and the choke and transformer are so designed, that magnetic fluxes flowing through the common limb are vectorially added, with the resultant flux having a reduced scalar value. The core laminations are symmetrical and are welded together at their ends outside the windings, (1, 2, 3), so that the windings may easily be assembled with the laminated cores. The case consists of two U section shells, the sides of which overlap over the sides of the laminations forming the cores.
Patent DE-2434652-A1 (DE)
Title: Vapour deposition of materials onto bulk substrates - appts. suitable for coating ceramics with nickel-chromium for resistor mfr.
Inventor: ESPENHAIN MANFRED DIPL PHYS
IPC: C23C14/22
Filed: 1974-07-18
Abstract: Process for applying coatings of metal, alloy or insulating materials to substrates consisting of bluk material, i.e. material is heaps, inside a vacuum vapour-deposition chamber. The novelty is the use of a round hollow container with an outer jacket of two walls made from perforated metal sheet and forming an annulus sepd. by radial walls into a circular row of single chambers, in which the bulk substrate is placed; the container rotates on an axis on which the source of vapour from one or more constituents is located so the substrate material passes periodically through the stream of vapour. Electron beams are pref. used for obtaining the vapour and the pref. device is included in the claims. For example, the coating of ceramic bulk material with Cr-Ni layers for electric resistors, where very uniform coatings and therefore uniform electric and mechanical properties can be obtd. at high deposition rates.
Patent DE-2435352-A1 (DE)
Title: Door handles tolerant to internal variations - having inner bush to engage through shaft
IPC: E05B3/04
Filed: 1974-07-23
Abstract: A handle for doors and windows has a middle part as a guide and fixing to a four sided shaft to operate with a lock or part of the lock; this central part has a bush projecting into and engaging with the handle. The central shaft is engaged by a middle part which is easy to produce accurately and tolerates variations in dimensions of the shaft and/or interior of the handle.
Patent DE-2437022-A1 (DE)
Title: Movable cooker grill screen - connected to operating component by release mechanism
Inventor: ZINNKANN PETER DIPL ING DR
IPC: F24C15/18
Filed: 1974-08-01
Abstract: The object is to make it easy to move the grill screen into position when the grill on the cooker is going to be used, and to ensure that use of the screen is not overlooked. the grill screen, which is connected to an activating component by means of a release mechanism, may be mounting on a swivelling and resilient setting in the front casing of the cooker, and the activating component may be a switch in the cooker's switch panel, with a curved plate on its stem. There may be a tipping lever nearby, on a hinged resilient mounting. Use of the screen is made more convenient.
Patent DE-2439689-A1 (DE)
Title: Radioactive isotope gas separation - by cascade assembly of rotating units with cross-connected outputs and inputs
Inventor: INOUE KIYOSHI
IPC: B04B5/08
Filed: 1974-08-19
Abstract: Gas sepn., for concn. of radioactive isotopes, is effected by feeding a 1st mixt. comprising >=2 materials of different mass to the inner periphery of a centrifuge cylinder of a 1st sepn. unit, and simultaneously feeding a 2nd mixt. of materials of different mass (B) to the outer periphery of a centrifuge cylinder of a 2nd sepn. unit identical to the 1st. The sepn. coefft. alpha1 of the 1st material of the 1st sepn. unit is made equal to the sepn. coefft. beta2 of the 2nd material of the 2nd unit; and the sepn. coefft. beta1 of the 2nd material of the 1st unit is made equal to the sepn. coefft. alpha2 of the 1st material of the 2nd sepn. unit. A ratio O1 of a throughflow amt. of the 1st material to be taken from the 1st sepn. unit and a throughflow amt. of the gas mixt. (A) fed to the 1st unit to 0.5, and the ratio of throughflow amts. of the 1st material withdrawn from the 2nd unit and the 2nd gas mixt. (B) fed to the 2nd unit is adjusted to >0.5. The 2nd material sepd. in the 1st unit is fed to the 2nd unit together with the 2nd gas mixt. (B), and the 1st material sepd. in the 2nd unit is fed to the 1st, together with the 1st gas mixt. (A). The 1st and 2nd materials are removed from the 1st and 2nd units respectively. A cascade gas sepn. system is simplified; the sepn. yield is increased at small throughputs; and a cascade system can be constructed with small mixing losses.
Patent DE-2441702-A1 (DE)
Title: Wall unit system with upright panels and reinforced edges - as extra support means allowing support of drawer units etc
Inventor: RAITH RICHARD L
IPC: A47B96/14
Filed: 1974-08-30
Abstract: The wall units comprise several vertically mounted rectangular boards or panels (A) which have opposite side edges (B) forming the fastening edges so that vertical cylindrical holders (C) are mounted between the edges (B) of adjoining panels so as to lock the latter together in a basically upright position. Supports (D) are provided with a front panel (126) and an inwardly facing end panel (116) which has inwardly projecting lugs (120, 122, 123) which are designed to engage in certain selected slots from the vertical row of slots (12) provided along the edge (B) of the panel (A) so that the supports (D) can be suspended from the right height. The front panel (126) of the support (D) extends parallel to the panel (A). Extra structural items such as drawer units, etc., can be attached to the support (D) and can be supported without contacting the panel by means of a further support means.
Patent DE-2446111-A1 (DE)
Title: Three phase out of balance measurement - using method which works independently of frequency and harmonic content and applicable to machine protection
Inventor: BREHLER ROBERT ING GRAD
IPC: G01R29/16
Filed: 1974-09-26
Abstract: The stator windings of a three phase generator (1) are supplied with the three phase supply concerned, whilst the rotor is driven with an auxiliary motor (2). The arrangement is such that the generator voltage output represents the out of balance load on the supply, producing a voltage at twice the supply frequency to do this. The harmonics are filtered out with a filter (4) and applied to a voltmeter (6) through a direct current isolating capacitance (2). The arrangement can be used to prevent machine overloading due to out of balance effects. In this case a multiplier (7) fed with the output voltage, and this feeds an analogue model of the heating and cooling characteristic of the machine to be protected. The output of this is used to limit the supply to that machine or to switch it off if appropriate.
Patent DE-2447868-A1 (DE)
Title: Support for conveyor belt roller - has roller spindle held in slots in side plate having hand guards
Inventor: SCHREIER JOSEF
IPC: B65G39/10
Filed: 1974-10-08
Abstract: The belt conveyor plant includes a guide drum in a position where the bottom run of the belt changes direction, rotating about a stationary shaft. The ends of the shaft are located in slots of side walls of the driving or return station of the conveyor or in slots of roller brackets of the conveyor frame. Immediately before a position where the belt enters, the guide drum is mounted a hand guard which has its die plates located on the shaft of the drum. The slots (6) for locating the drum shaft (3) are open in the direction of belt run. The side plates (8) of the hand guard are provided with slots (9) which embrace the shaft ends (3).
Patent DE-2452742-A1 (DE)
Title: Lead alloy contg. copper, tin and selenium - opt replaced by sulphur and tellurium and use for leading chemical appts.
Inventor: GRAEFEN HUBERT DR
IPC: C22C11/06
Filed: 1974-11-07
Abstract: Pb alloys for surface-protection contain 0.005-0.5 (0.01-0.025)% Se in adn. to 0.03-0.15% Cu, 0.03-0.15% Sn, bal. Pb. Alloys are used for homogeneously lead-lining chemical appts. e.g. of steel. Addn. of Se prevents heat-crack formation of linings without impairing the other properties. Se has a grain-refining activity. Inter-crystalline fissure-formation is also prevented. Leaded apparatuses have improved service-life. Se content can be replaced, entirely or in part, by 0.002-0.012 (0.002-0.006)% S (less toxic than Se) or by 0.01-0.15% Te. Pb alloys may also contain 0.025-0.1% Ag and/or 0.05-0.2% Pd and 0.5-5% Sb.
Patent DE-2453304-A1 (DE)
Title: Two-way loudspeaker telephone circuit - has two way amplification control with speech current in one direction affecting coupling in other direction
Inventor: BROSOW JOERGEN
IPC: H04M9/10
Filed: 1974-11-11
Abstract: The two-way loudspeaker telephone enables working in both transmitting and receiving directions and there is an amplification control device which operates in both directions of transmission. In each transmission path for the microphone in the transmitter and the loudspeaker in the receiver mode of working there is at least one optical coupler (OK1, OK2) which consists of a light emitting diode and a phototransistor. Each of these is controlled in dependence upon the speech current flowing through the other. The base electrodes of the phototransistors may have applied to them a positive voltage dependent upon the speech current.
Patent DE-2508498-A1 (DE)
Title: Album type document files mfg appts - forms pockets from separately supplied strip of cardboard
Inventor: NURIMANOW MYALIK CHASYANOWITSC
IPC: B42F5/02
Filed: 1975-02-27
Abstract: The pocket type documents files are made from a continuous sheet (4) of cardboard in which flaps (7) have been formed by cuts from three sides of a rectangle. The sheet (4) is fed between driven rollers underneath a rotating shaft (5) carrying a number of discs (6) mounted parallel to each other. An oscillating arm (14) mounted beneath the sheet folds up the flaps (7) into the spaces between the discs (6). At the same time continuous strips of cardboard (19) are fed from above around an inclined frame (21) so that each strip (19) is guided between the flap (7) and the sheet (4). The sheet (7) is afterwards cut transversely between the flaps (7) to form the files.
Patent DE-2509466-A1 (DE)
Title: Internal pressure prestrrressed reinforced concrete reactor tank - with cylinder sheath construction only as required for interior pressure transfer to stress members
Inventor: HERTEL WILHELM DIPL ING
IPC: G21C13/093
Filed: 1975-03-05
Abstract: The subject is a pre-stressed reinforced-concrete nuclear reactor tank or container, where the cylindrical lengthways pre-stressing is normally to be effected in stress channels, and where there are openings for the heat-exchangers in the reactor vessel only in the cover, centrally and on the periphery. Here the cylinder sheat is constructed only to the extent that it is needed for pressure transfer of interior pressure onto the stress members, during the stressing process. The annular stress members and also the lengthways ones lie freely exposed during the stressing process, and are normally concreted in after this is over, making it unnecessary to carry out laborious pressing out of channels to effect cohesion. Heat-exchangers can be held in through openings in the base periphery, as well as through cover openings, so that they continue to form a protective apron relative to the reactor core, reducing heat and radiation effect and promoting better use of the space.
Patent DE-2509603-A1 (DE)
Title: Removing tool for tapered mandrel - has hammer pivoted to support to strike wedge into extraction slot
Inventor: HAEUPLER HERMANN
IPC: B23B31/07
Filed: 1975-03-05
Abstract: The wedge piece (3) is mounted in a fork in the end of a strip of metal (1). The wedge is mounted in line with the hole into which it is to be driven. The end of the strip, on which the wedge is mounted, is hinged about a pivot (8). A lever (10) is also mounted on this hinge point. The end of this lever carries a weight, which is in line with the wedge-piece. The lever with weight can be swung to and fro so that its end hits against the end of the lever on which the wedge is mounted. The wedge is driven into a hole in the tool holder and the tool is removed.
Patent DE-2510389-A1 (DE)
Title: Control for gear box gear change - has clutches operated electro-hydraulically under time dependant control without interrupting transmission
Inventor: KUHN WALTER DIPL ING
IPC: F16H61/08
Filed: 1975-03-10
Abstract: A pump draws oil from a sump through a filter and delivers it to torque converter and to the gear change clutches. These are actuated by a hydraulic slide valve which is controlled by an electro-hydraulic servo valve. The return pipe from the valve is connected directly to the sump but the return pipes from the valves are connected to a control valve actuated by the servo valve, and which is provided with a time dependent control so that the dis-engagement of each of the clutches is delayed until the clutch controlling the gear selected by the driver is fully engaged.
Patent DE-2512679-A1 (DE)
Title: Ventilating system for hospital operating theatres - includes local supply outlet hood mounted on operating table light fitting
IPC: A61G13/00
Filed: 1975-03-19
Abstract: The operating theatre (1) has a false ceiling (2) above which there is a supply air duct (3) delivering biologically clean air through outlets (4) in the false ceiling. A central support (6) running from the ceiling carries the operating table lamps(8) on pivoted swivel arms (7). A tube (9) is run through the centre of this fitting and is joined to a hollow pivoted swivel arm (11) at its bottom. The arm (11) carries an outlet hood (12) on its end which contains a perforated plate and a filter. Air is supplied to it through the tube (9) from the supply air duct (3) through a further cleaning and heating unit (24). It delivers a laminar air flow over the patient which isolates the open wound from dust picked up in the room.
Patent DE-2526305-A1 (DE)
Title: Model railway type wheel and axle unit - has integral electrical load resistance with connections to both wheels
Inventor: CONRAD LUDWIG
IPC: A63H19/22
Filed: 1975-06-12
Abstract: A wheel and axle unit is partic, for use in toy or model type railways. Two metal wheels are connected by means of an axle and have an electrical load resistance such that the contacts for the resistance are electrically connected to one of the wheels. The load resistance is constructed in the form of the tube (8) which is push-fitted onto the axle (5). Both the connections (11) for the resistance are coaxial with the mid line (18) of the axle (5) and are supported on both ends by the wheels (4).
Patent DE-2531888-A1 (DE)
Title: Base plate for measuring instruments - has preformed screw holes for mounting electrical components
Inventor: FROHNWIESER BERNHARD
IPC: G01R1/04
Filed: 1975-07-17
Abstract: Base plate for small electrical or mechanical components esp. in measuring instruments comprises a grid arrangement of holes (11) for screws whereby the components are secured to the base plate. The screws may be of the self-tapping type. The holes may be blind holes in cup-shaped formations of the plate. Several small plates may be connected together by bridge pieces. At its corners, the base plate may h ave holes (19) for screws which secure a casing to the plate. Pref. the plate is made of injection-moulded plastics.
Patent DE-2533171-A1 (DE)
Title: Oil recovery from oil seeds, esp. cotton - using a rotary filter on ground seed prepressed at low pressure with solvent extn. of residual oil cake
IPC: C11B1/12
Filed: 1975-07-24
Abstract: The process comprises feeding the matl. to a heated rotating and axially oscillating kneader of the type used to homogenise thermoplastic and thermohardening matls. The kneaded matl. is discharged from the kneader/mixer onto axially aligned oil separator consisting of a horizontal hollow cylindrical rotary filter with a concentrically rotating stirrer. The oil leaving the filter openings is collected, while the residual oil in the cake from the separator is recovered by solvent extn. The process eliminates the usual pre-pressing of the ground oil seed which has been preheated to 90-100 degrees C, by recovering a high proportion of the oil at relatively low pressure so that the oil and residual cake is exposed to a high temp. for the min. period of time. The quality of the oilis improved, while losses of lysine in the residual oil cake are decreased.
Patent DE-2543309-A1 (DE)
Title: Power assisted motor vehicle control pedals - employing coil spring as friction clutch between pedal and servo motor have drum linked to pedal
Inventor: KIRSCHNER PETER DIPL ING
IPC: B60T11/08
Filed: 1975-09-27
Abstract: The servo drive to the clutch or brake pedal is provided by a separate motor. Its power is transmitted through a cable or link to assist the pedal travel as in 2527478. The pedal (1) hinges on a spindle (9). Concentric with the spindle and mechanically linked with the pedal is a drum (2) which has a cut out into which a projection (1a) on the pedal fits with circumferential clearance. Surrounding the drum is the shallow hollow cylinder (8) of the servo drive. A spring (7) whose free ends are located in the gaps between pedal projection (1a) and the ends of the drum cut out, provided the friction drive between rotating servo cylinder and pedal.
Patent DE-2547982-A1 (DE)
Title: Multiple pinion drive for high torques - has drive to differential casing and outer sun wheel acting as transfer gear
Inventor: BENTHAKE HEINRICH DIPL ING
IPC: F16H37/10
Filed: 1975-10-27
Abstract: A drive for very high torques and designed for reduction in size is used on gearwheels of large diameter. The drive pinion meshes with the planet wheel carrier and the outer sun wheel (12) of the planet system acts as transfer gear. To arrange for multiples of two pinions on the gearwheel (6) there are at least two planet sets (2) connected to a by-pass gear (3) via the inner sun wheel (14). The outer sun wheel of the planet set (2) meshes with at least one of the hweels driven by the pinion (8). The spur pinion has inclined teeth.