baber/WOPTO huggingface dataset:
Patent DE-2936237-A1 (DE)
Title: Fluorinated styrene prodn. - from fluorinated benzyl-tri:phenyl-phosphonium halide and para-formaldehyde
Inventor: HAGEMANN HERMANN DR
IPC: C07C17/26
Filed: 1979-09-07
Abstract: Prodn of fluorinated styrene derivs of formula (I) is carried out by reacting 1 mole of a fluorinated benzyl- triphenylphosphonium halide of formula (II) with 2-10 moles of paraformaldehyde (III) at 0-100 deg C in an aq medium contg 1-10 equivs of a strong bases. (where X is Cl or Br; R1-R3 are F or partially or totally fluorinated alkyl or alkoxy, and R2 and R3 can also be H). (I) can be homo- or copolymerised (e.g. with styrene or acrylate esters) to produce polymers with unique optical properties, e.g. low refractive index and high dispersion (low abbe no). The use of (III) rather than aq. formalin reduces the vol of the reaction mixt and increases space-time yields.
Patent DE-2936968-A1 (DE)
Title: Claw coupling for switchable engine cam - has damping fluid in claw grooves between coupling halves acting on claws before claw engagement
Inventor: OHLENDORF ROLF
IPC: F16D11/10
Filed: 1979-09-13
Abstract: The claw coupling (1) may be used for switchable cams on an engine camshaft. It comprises an input (3) and an output half (2,5,6) provided with claws (7,8) capable of entering segment- shaped grooves in the input half (3). The trailing radial faces of these grooves engage the sides of the claws on engagement of the coupling. The claws can only enter these grooves at points adjacent to their leading faces. After entering, the claws have to displace a damping fluid (in chamber 9) before they come in contact with the trailing faces.
Patent DE-2945045-A1 (DE)
Title: Pressure compensation for blast furnace lock - by duplicate lock bunker and antiparallel compensation pipe section
Inventor: BAERMANN HANS
IPC: C21B7/00
Filed: 1979-11-08
Abstract: Pressure compensating device for pressurised shaft furnaces, specially large blast furnaces, consists of another gas space container which is connected to the conventional lock-type charging bunker through pressure compensating piping containing an anti-parallel section. The preferred container design is a duplicate of the lock bunker. The thereby reduced gas pressure during a lock operation results in a considerable redn of the created noise and of the emission of dust laden gases.
Patent DE-2945749-A1 (DE)
Title: Ventilation duct wall box union - comprises wall plate with opening accommodating coupling plate sliding inside
Inventor: KIPARSKI HEINZ
IPC: F24F7/00
Filed: 1979-11-13
Abstract: The wall box union accommodates and secures a ventilation duct being partic. for connecting to a vapour exhaustion cowl on the inside of an aperture in the wall. The union (7) comprises a wall plate (9) fitting against a wall surface (4), and a coupling plate (10). The wall plate has an opening whose clear width is greater than the maximum clear width of that in the coupling plate, which slides in relation to it by means of coupling devices. These can be positively secured to the wall plate and comprise holding strips fitting over mating faces on the coupling plate.
Patent DE-2949874-A1 (DE)
Title: Overcurrent protection switch fitting onto on=off switch - is reset by operating on=off switch normally after bimetal has cooled
Inventor: PETER JOSEF
IPC: H01H73/30
Filed: 1979-12-12
Abstract: The protection switch (1) is combined with an on/off switch (5) into one unit. A two-armed resetting lever (28) is located between the fixed contacts (21,22) roughly parallel to the plane of separation between fixed and moving contacts. The lever is connected non-rotationally to the spindle of the on/off switch which lies perpendicular to the planes of separation. The arms (29) of the lever lie in the plane of separation and are designed as cams acting against an insulating slide. The arms have a length such that they hold the slide outside its position between the contacts (7,21,22) when rotated in a direction causing the slide to move.
Patent DE-3000570-A1 (DE)
Title: Telephone call timer comprising sand-filled hour-glass - has timing interval corresponding to telephone tariff period
Inventor: GLISCHINSKI GERHARD VON
IPC: G04F1/06
Filed: 1980-01-09
Abstract: The timer comprises a transparent container divided into two compartments by a narrow restriction through which the sand passes. The size of this restriction and the amount of sand held in the container is such that it all passes from one compartment into the other in between 7 and 7 1/2 minutes, corresp. to the call tariff period for the German telephone network. The timer allows a subscriber to terminate a call before the elapse of the tariff period, so that a following tariff period which is not fully used is not paid for and the size of the telephone bill is thus reduced.
Patent DE-3005475-A1 (DE)
Title: Ice formation volume absorption unit - has flexible pockets with antifreeze water mixture, in water container
Inventor: LEMM VOLKER ING GRAD
IPC: F25D3/00
Filed: 1980-02-14
Abstract: The unit is for the absorption of the ice formation volume in water containers, to utilise the latent heat of the water contents during formation of ice. The water container has integral pockets, which are formed from flexible material, and are filled with an antifreeze/water mixture. Non-compressible pipes extend from the pockets to a compensation vessel positioned above the water container. The system ensures that high pressures cannot be generated as the water breezes, as expansion is always possible.
Patent DE-3005491-A1 (DE)
Title: Weather-proof holder for notices - has profiled sprung end holding board firm for easy exchange
Inventor: MIETHE MANFRED
IPC: G09F7/18
Filed: 1980-02-14
Abstract: The holder comprises a lower support bearing (3) for the board or picture and an upper counter bearing (4) which has a section (6) which is biased in the holding position and has a recess (7) to take the board (1). This section is made of a resilient material firmly connected at one end to the frame (2) so that the board (1) can be easily fixed and replaced as required. The section can be a hollow cylinder containing a torsion spring (8) rigidly connected at one end to the frame (2) and at the other to the section. A key can be provided for turning the cylinder against the action of the spring.
Patent DE-3007669-A1 (DE)
Title: Indicator for automatic electronic flash unit - has LED or LCD array showing max. and min. distances for set aperture and film speed
Inventor: ADLER BERNHARD
IPC: G03B15/05
Filed: 1980-02-29
Abstract: A working indicator for an automatic electronic flash gun has an LED or LCD array (5) defining the operating range of the flash while controls set the aperture (3) and film speed (4). The computer-controlled flash qun operates with selective auto- or manual modes as well as with different flash angles. The user is given a clear indication of the working range of the flash for any setting, as well as the optimum distance when selecting manual control. The indicator is mounted on the rear face of a flash gun and is operated by press tabs and simple switches. The display can be rectangular or circular to suit the shape of the gun.
Patent DE-3010103-A1 (DE)
Title: Chemical surface hardening of glassware, esp. bottles - by ion exchange using salt mixt. carried into bottle by compressed air employed for final moulding of bottle
Inventor: KNOTH WERNER-DIETER
IPC: C03C21/00
Filed: 1980-03-15
Abstract: The internal and/or external surfaces of a container or bottle made of glass are hardened by exchanging alkali ions (I) of a smaller atomic vol. in the surface of the glass with alkali ions (II) of a larger atomic vol. Ions (II) are obtd. from a dry material (IIa), which is fed by a carrier onto the glass while the latter is being moulded and is above 100 deg.C, so material (IIa) melts partly or completely when it impinges on the glass. Material (IIa) is pref. a salt mixt. contg. by wt. more than 50% of alkalies contg. ions (II); plus more than 20% other salts which melt when meeting the hot glass; and after ion exchange, the residual salt mixt. is completely soluble in water. The compressed air used to mould the glass is pref. employed to carry the salt mixt. (IIa). Chemical surface hardening can be included in the normal glass moulding process.
Patent DE-3011796-A1 (DE)
Title: Supersonic air intake for ramjet - has diametral splitter to give uncoupled air streams and stabilise shock pattern
Inventor: ENGL ERNST DIPL ING
IPC: F02C7/04
Filed: 1980-03-27
Abstract: The supersonic air intake is divided by a diametral splitter (5) to give two aerodynamically uncoupled air streams (Lhr1,Lhr2). The splitter extends from the tip (4) of the centre body (3) to the sub-sonic region. The thickness (H) is kept small, and a duct (7) and vanes (10) are arranged to stabilise the flow pattern. The design gives a two- dimensional oblique shock pattern within a construction with rotational symmetry. Operation over a wide range of conditions is possible without encountering dangerous instabilities. The design is suitable for aircraft power unit.
Patent DE-3013013-A1 (DE)
Title: Vision testing board with symbol lines - has intervals between symbols in lines same in all lines on board
Inventor: HOHMANN ANNEMARIE DR
IPC: A61B3/032
Filed: 1980-04-03
Abstract: The board is for both close and distant vision testing. It has characters, or symbols, arranged in lines and all of the same size in each line, whereas the sizes vary from line to line, and there are intervals between the lines. The intervals between the characters in the lines on each board are all the same. The Landolt-C can be used as the character in each case, with the gap extending in different directions to random patterns. The interval between the characters for close and distant sight testing boards can be 2.6 and 17.2 degree minutes respectively.
Patent DE-3032901-A1 (DE)
Title: Animal drinking fountain with spring-loaded basin - has breakwater apron inside top edge of basin
Inventor: EBERLEIN HELMUT
IPC: A01K7/02
Filed: 1980-09-01
Abstract: The animal drinking fountain is particularly for cattle, operating automatically. A spring-loaded basin moves vertically under the weight of water flowing in via an inlet valve, this being opened when the basin is in the uppermost position. A breakwater apron (50) is mounted inside the top edge of the basin (10), its lower edge being at the water level (52) when the basin is full, so as to prevent water spilling over the basin edge. It can be immersed for up to 2cm. in the water, and can be of material semi-permeable to water, l e.g. perforated sheet-metal, the holes being 2 to 3mm. in dia.
Patent DE-3036194-A1 (DE)
Title: Washing machine drive unit - has two motors used separately or in parallel dependent on rotation range
Inventor: BRADLER PETER DIPL ING
Filed: 1980-09-25
Abstract: The drive unit has an induction motor which can be mechanically coupled to a series commutator motor which rotates in the same sense and is simultaneously coupled to the supply network over a given rotational range. When the induction motor is operating in a braking mode, the delivered braking moment together with the load moment of the coupled load is greater than the rotational moment of the commutator motor. The induction motor is used on its own for the lowest rates of rotation, both motors being used in parallel for the following rotation range, only the commutator motor being used for the highest rates of rotation. A single-phase AC supply is used. The drive unit allows a wide range of rotation for a washing machine with washing, rinsing and spin-drying cycles.
Patent DE-3037997-A1 (DE)
Inventor: BOBERG MICHAEL DIPL CHEM DR
IPC: C07D501/20
Filed: 1980-10-08
Abstract: beta -Lactam antibiotics of the formula   <IMAGE>   in which A is a hydrogen atom, an optionally substituted alkyl, alkenyl, alkinyl or cycloalkyl group, a substituted or unsubstituted phenyl ring, a polycyclic aromatic ring or an optionally substituted heterocyclic 5-membered or 6-membered ring with 1 to 4 hetero-atoms, Y is <IMAGE>  X is a sulphur or oxygen atom, T is an organic radical, and Z is a hydrogen atom or a C1 to C6 alkoxy group, or an ester or salt thereof.
Patent DE-3038229-A1 (DE)
Inventor: WEBER ALFRED DR
IPC: C12N1/20
Filed: 1980-10-07
Abstract: 1. Aqueous nutrient medium for the cultivation of microorganisms, characterised in that a component of the medium is a carbohydrate-free protein hydrolysate solution containing 0.2 to 5.0% cystein, which is prepared by hydrolysing horn, feathers or hair with mineral acid, and neutralising and filtering the hydrolysate.
Patent DE-3042653-A1 (DE)
Inventor: VERMES GYOERGY DIPL ING
IPC: B23H1/02
Filed: 1980-11-12
Abstract: The circuit arrangement has a high-voltage pulse generator (7) fed with a d.c. voltage of 100 to 300 V and a discharge section (3) connected in parallel with the outputs of the high-voltage pulse generator (7). The essence of the invention consists in the fact that the discharge section (3) is connected via its first pole (10) to a controlled current generator (2) and via its second pole (11) to a current source (1) connected in series with the controlled current generator (2) and supplying a d.c. voltage of 30 to 60 V. The circuit arrangement is only loaded with small energy dissipation and can therefore be of space-saving construction. Furthermore, a high rate of rise and fall of the pulses of the discharge current can be achieved. The circuit arrangement thereby guarantees a significant improvement in the machining conditions and the electrode wear by the maximum value of the discharge current being stabilised and by at the same time the run-off rate of the pulses of the discharge current being controlled as a function of the value of the discharge voltage.   <IMAGE>
Patent DE-3045382-A1 (DE)
Title: Decontamination of medium or low activity liq. waste - with fibrous deep bed filter in evaporated effluent path
Inventor: BRAEHLER GEORG DIPL CHEM DR
IPC: G21F9/08
Filed: 1980-12-02
Abstract: Appts. for improving the decontaminating efficiency of radioactive liquid effluent treatment plants in which the liquid effluent is evapd. in an evaporator sump and the vapours pass to a condenser, consists of a fibrous deep bed filter incorporated on the path between the evaporator and the condenser. Pref. this filter is incorporated in a horizontal line between the evaporator and condenser. Used in partic. in plants for the decontamination of medium to low activity liquid effluents, where a certain amt. of droplets are inevitably entrained in the form of aerosols with the evapn. vapours. By incorporating a fibrous filter on the path of the vapours, a very large proportion of the aerosols are extd. from the vapours before they reach the condenser.
Patent DE-3047210-A1 (DE)
Title: Motor vehicle illumination lamp assembly - has slotted cylindrical cap with relocatable adjustment ring and projecting flat terminals
Inventor: BRAUNECKER WILHELM
IPC: H01J5/60
Filed: 1980-12-15
Abstract: The lamp is esp. for motor vehicle illumination, with a bulb of various shapes, but each type of bulb is attached to a smooth cylindrical portion (2) and to a base member with flat terminal lugs. The adjustment ring (3) which has both plastics and metallic components slides on the smooth cylindrical (neck) portion of the lamp and may fit into slots in the cylinder. The external ring of the adjustment ring has cut-out pieces in its edge or may have tooth-like indentations to assist in gripping. The adjustment ring fits to the body of the vehicle in flexible metallic clips.
Patent DE-3110657-A1 (DE)
Title: Fire-resistant composite roof slab
Inventor: JUNGBLUTH OTTO PROF DR ING
IPC: E04B1/94
Filed: 1981-03-19
Abstract: The invention relates to a non-combustible, multilayered roof slab, the upper cover layer of which comprises a profiled steel sheet and the lower cover layer of which is designed with a planar underside, the two layers being connected to one another in a shear-resistant manner by means of screws, via non-combustible webs consisting of high-temperature-insulating material. A mineral insulating layer is arranged between the webs such that an airgap is formed between them and the upper flanges of the upper profiled steel sheets. The cooperation of the lower cover layer, which is designed in a tension-resistant and compression-resistant manner owing to a possible continuous-beam effect, is achieved in the event of fire in that its upper part of the cross-sectional surface is high-temperature-insulated, with the result that, for example in the case of it being designed as a C-shaped steel sheet (Figure), its angled-off parts are embedded in the high-temperature-insulated webs or in the mineral insulating layer. Depending on dimensioning, such extremely lightweight composite slabs for standard loading achieve, as tests have shown, spans of from 4 m to 6 m and a fire-resistance duration of between approximately 30 and 120 minutes. <IMAGE>
Patent DE-3111942-A1 (DE)
Title: Folding machine
Inventor: KUNZMANN ANTON
IPC: B65H45/14
Filed: 1981-03-26
Abstract: The invention relates to a folding machine with a folding device (11) having any number of folding pockets (12-15) and with a feed device for the material to be folded. The feed device for the material to be folded has both a roller-train feed apparatus (19) and also a single-sheet feed apparatus (20). These feed apparatuses (19) and (20) can either be optionally brought into the entry region (17) of the folding device (11) or are arranged stationary with respect to the folding device (11). In a stationary arrangement, the two feed apparatuses (19, 20) can also simultaneously charge material to be folded into the folding device (11). <IMAGE>
Patent DE-3114333-A1 (DE)
Title: Container for receiving a standard audio-tape cassette
IPC: G11B23/023
Filed: 1981-04-09
Abstract: The invention relates to a cassette container comprising a housing and a drawer, the bottom of the drawer and the end face of the drawer being transparent, so that an inserted label is visible; there is no bottom to the housing. For use in particular in the case of prerecorded standard audio-tape cassettes. <IMAGE>
Patent DE-3121856-A1 (DE)
Title: Annular plate for a container made of flexible material for storing and transporting bulk products
Inventor: LISSNER HANS
IPC: B65D90/54
Filed: 1981-06-02
Abstract: The invention relates to an annular plate for a container made of flexible material for storing and transporting bulk products, the container having a filling opening on one broad side, to the edge of which filling opening the annular plate is attached by an inner welding zone while the outer edge region of the annular plate forms an abutment for manipulating the container. In order to simplify the attachment of the annular plate to the edge of the filling opening using little material and to facilitate manipulation of the container, the annular plate is constructed in such a way that the welding zone (7) and the outer edge region (5) are arranged in different, mutually parallel planes and are connected to one another by an annular web (6). As a result, the stability and rigidity of the annular plate (4) are improved in such a way that a considerable reduction in material thickness is possible. Due to the lower material thickness, in particular in the region of the welding zone (7), it is readily possible for the annular plate (4) with the welding zone (7) to be welded onto the edge (9) of the filling opening (2) of the container (1). An insertion gap (10) is then defined between the underside of the outer edge region (5) and the top side of the broad side wall (3) of the container (1), in which gap elements of a holding device can be inserted without difficulty. <IMAGE>
Patent DE-3125528-A1 (DE)
Title: Circuit arrangement for a switched-mode controller for inductive loads
Inventor: SCHUELZKE PETER DIPL ING
IPC: H02P7/285
Filed: 1981-06-29
Abstract: Such a switched-mode controller is used, for example, in a motor vehicle and controls the operation of a fan motor in dependence on the radiator temperature. In the load circuit, a switching element, mostly in the form of a transistor, a current-sensing resistor and the fan motor are arranged in series between the poles of the power supply. The useful signal is picked up across the current-sensing resistor and supplied to a comparator via a resistor network. This comparator is also supplied with the radiator temperature signal generated by an NTC resistor. Depending on this signal, the fan motor is controlled cyclically via the transistor used as a switching element. The resistor network is designed in such a manner that the useful signal generated by the current-sensing resistor is transformed into the common-mode range permissible for the comparator. This makes it possible to manage with a single comparator for evaluating the current-dependent useful signal. By connecting the fan motor in the load circuit directly to the power supply pole with the series-connected current-sensing resistor and switching transistor, accurate control is maintained. <IMAGE>
Patent DE-3128269-A1 (DE)
Title: Attachment for drilling machines
Inventor: TAAKE BERTHOLD DR
IPC: B23Q11/00
Filed: 1981-07-17
Abstract: Belonging to the attachment are a drill-chuck housing which can be slipped over the drill chuck of the drilling machine, a slip-on ring with lateral connection piece, a dust container, a flexible line leading to the dust device, and also a reducing ring. Arranged at one end of the drill-chuck housing is a revolving external strengthening which has a gap extended beyond the strengthening. Due to this design, the diameter can be varied via a clamping screw and thus the drill-chuck housing can be firmly clamped in position on the drilling machine. In addition, air is drawn in through the extended gap in the direction of the drill. The other end of the drill-chuck housing is of tapered design for slipping on the slip-on ring, a catch being arranged on the tapered part and a recess being arranged in the slip-on ring as a counterpart to the catch. In order to carry off the dust drawn in, the opening of the lateral connection piece of the slip-on ring located in the locked state is congruent with a groove arranged in the tapered part of the drill-chuck housing.
Patent DE-3133345-A1 (DE)
Title: Digital frequency identification circuit
Inventor: SCHEMMEL HANS ROBERT DIPL ING
IPC: G01R23/15
Filed: 1981-08-22
Abstract: The proposed digital frequency identification circuit, with which the fundamental frequency of an input oscillation (1) is identified, contains a frequency divider circuit comprising a frequency divider (1a, 1b) and a series of logic chips (Ga, Gb, Gc, I1, I2) which are fitted to it. The output signals on the three outputs (a, b, c) of this frequency divider circuit control a counter (5) and a decoder matrix (6) in such a way that the counter (5) is initially incremented for the duration of three cycles of the input oscillation by a very fast clock (3) which is independent of the input oscillation. The forwarding of the clock pulses (3) is then interrupted for the duration of one cycle of the input oscillation, i.e. the counter reading is retained. A pulse on one output (b) of the frequency divider circuit then opens the output gates (GI to Gm) of the decoder matrix (6) which converts each counter reading into a logic "1" on one of its outputs (AI to An). Finally, the counter (5) receives a reset pulse via a further output (c) of the frequency divider circuit before the entire arrangement passes through the same conditions for the next four cycles of the input oscillation. <IMAGE>