baber/WOPTO huggingface dataset:
Patent DE-2649561-A1 (DE)
Title: Rotor for small and medium electric motors - with groove around surface of metal stamping packet in plane parallel to end face
Inventor: SRB NEVEN DIPL ING
IPC: H02K17/16
Filed: 1976-10-29
Abstract: The rotor for small or medium electric motors comprises a cage and a sheet metal stampings packet. The surface (2) of the latter is formed with an annular or helical groove (1) extending around it. This groove pref. has a depth of between 0.5 am 1 millimetre and reduces the vibration of the rotor due to parasitic surface currents. The groove (3) may extend around the centre of the stampings packet in a plane parallel to the end face of the cylindrical rotor, it may comprise an annular groove extending around the surface of the stampings packet in a plane at an angle to the plane of the end face, or it may comprise a helical groove running along the packet surface (2).
Patent DE-2651882-A1 (DE)
Title: Injection mould locking device - has one half actuated by fluid piston and other half mounted resiliently to prevent closure when tools are disposed therebetween
Inventor: FORKO DRAGO
IPC: B29C45/84
Filed: 1976-11-13
Abstract: Injection mould locking device has the first movable half-mould mounted slidably on the frame and connected to the hydraulic actuator, and the other half-mould mounted slidably on a fixed support and spring biased towards the half-mould by which it is displaceable through a limited distance in the opposite direction during the locking operation. Damage to mould is prevented when closing is initiated whilst tools are still present between the half-moulds.
Patent DE-2653002-A1 (DE)
Title: Internal telephone network with paired phones - automatically redirects call to second handset of pair when first is engaged
Inventor: TSITER IRAKLIS DIPL ING
IPC: H04Q3/54
Filed: 1976-11-22
Abstract: The internal telephone network employs a number of hand-sets (E1, En) which are coupled to a common multi-wire address line (AL) and arranged in pairs (E1a, E1b) allocated complementary, binary coded, address code words. The address line (AL) has a number of transmission wires which exceeds the number of binary characters of such address word. Each addressed handset (e.g. Eia) delivers a return signal (RS) to a central installation (Z), responding to the latter to direct further calls to the other handset (E1b) of the sampe pair.
Patent DE-2657141-A1 (DE)
Title: Metal fire-proof door aerated concrete filling slabs - have frame braced tension anchors in channels parallel to metal plates
Inventor: GAIL JOSEF
IPC: E04B1/94
Filed: 1976-12-16
Abstract: The relatively thin and light panel-shaped fire-protective door, incorporates parallel metal cover plates, a metal frame which stiffens these, and an intervening filling of heat-insulating aerated concrete. Here the filling is made up from two or mor eaerated concrete slab (11) between the cover plates (9). The slabs incorporate one or more channels (29) extending parallel to the plates through the concrete slabs lying between two opposite sides of the metal frame. A tension anchor (25) braced to both frame sides, passes through the channel. There may be interlocking rebate folds (15, 17) on the interfacing edges (13) of the aerated concrete slabs. This makes aerated concrete filling applicable to relatively large fire-protective doors.
Patent DE-2658158-A1 (DE)
Title: Hoist mechanism sliding disc brake - has disc unit moved by thruster screwed onto drive shaft between working positions
Inventor: KLINKHAMMER KARL
IPC: F16D59/00
Filed: 1976-12-22
Abstract: The brake is for use with a hoist mechanism having a housing in which a shaft is coupled between the power source and the lifting mechanism. Around the shaft (11) is a sliding disc brake unit (15) rotating with the shaft and also working with the housing (10) via a freewheel (16) preventing rotation in one direction. A thruster body (24) is screwed onto the shaft, and moves the brake unit into the applied and release positions, also transmitting the drive to the shaft. The brake unit can have a disc (19) bearing against a flange (17) at the input end of the shaft and keyed to the shaft, and against which a disc of braking material (20) bears. The second disc is held against the first by a pressure disc (21) having a boss (22) by which it runs on the shaft.
Patent DE-2659528-A1 (DE)
Title: Antibacterial (5)-nitroheterocyclyl-(2)-amidrazones - with broad-spectrum activity, also amoebicidal, trichomonacidal and coccidiostatic activity
Inventor: NESVADBA HANS DR
IPC: A61K31/38
Filed: 1976-12-30
Abstract: Amidrazones of formula (I) are new together with their acid addn. salts (where R' is alkyl; R2 is H, alkyl or phenyl; either Y is -CH= and X is O or S, or Y is -N= and X is S or -NH- opt. substd. by alkyl or hydroxyalkyl). (I) are broad-spectrum antibacterial agents, also having amoebicidal, trichononicidal and anticoccidial activity for human and veterinary use. A pref. cpd., N'-ethoxymethylene-1-methyl-5-nitroimidazole-2-carboxamidrazone, was prepd. by heating under reflux as mixture of 1 -methyl-5-nitroimidazole-2-carboxamidrazone and ethyl orthoformate.
Patent DE-2700738-A1 (DE)
Title: Steel or aluminium staircase steps - has single sheet metal sheet bent into saw tooth shape
Inventor: BOHN ERNST
IPC: E04F11/022
Filed: 1977-01-10
Abstract: The metal staircase, esp. one of ferrous metal or aluminium, is for clamping into masonry or other load bearing wall on at least one side. All its steps (1, 2) are made up from a single piece of sheet metal bent into a saw-tooth shape; they are formed into this shape from a flat sheet on a bending bench or press. Sheet steel or galvanised sheeting are suitable materials, pref. between 1.2 and 2.00 mm thich. Sharp metal edges can be covered by insertion profile units, and tread surfaces can incorporate a coating of hard, non-wearing material, such as wood and textile combination, esp. a 22mm thick plywood base with a textile covering cemented onto it.
Patent DE-2702356-A1 (DE)
Title: Repairing depressed cutaneous scars - using fibrin stabiliser and plasma
Inventor: GOTTLIEB SHELDON K DR MED
IPC: A61K35/16
Filed: 1977-01-21
Abstract: A compsn. for the repair of depressed cutaneous scars comprises fibrin stabiliser(s) (I) and plasma (II) in an amt. to provide sufficient fibrin within a cavity formed under the scar and the fibrin stabiliser being present in an amt. to maintain the fibrin in the cavity and thereby cause build-up of collagen. The build-up of collagen results in the permanent elevation of the depression to produce a more continuous skin surface that improves the cosmetic appearance of the patient. Pref. compsns. comprise 20-50 mg of absorbable gelatin sponge, 12.5-75 mg of aminocaproic acid and 0.3-5cc of plasma.
Patent DE-2705134-A1 (DE)
Title: Reversible ratchet spanner for high torques - has rollers contacting seat and central polygonal plug with spigot
Inventor: HEINEMANN FRITZ
IPC: B25B13/46
Filed: 1977-02-08
Abstract: The reversible, freewheel ratchet spanner head is used for high torques. The ratchet mechanism has several clamping rollers (10) in radial guide slots (4). The roller cage (3) holds the rollers and the rollers rest against internal circular contact face. The rollers contact also polygonal central plug (7). Segmental clamping chambers ensure short rolling distance for rollers. The ratchet mechanism has direction changing lock (5, 6) and the ratchet spanner nut connecting the square spigot (9) is held on the connecting flange (8) on the polygonal plug.
Patent DE-2706861-A1 (DE)
Title: Developer toner concentration measuring device - using permanent magnet two field plates and pole plate
Inventor: KOEFFERLEIN RAINER DIPL ING
IPC: G03G15/08
Filed: 1977-02-17
Abstract: The developer toner concentration measuring device, for an electrostatic copier, employs a permanent magnet (DM), two field plates (FP1, FP2) and a pole plate (PL). The field plates (FP1, FP2) are positioned side-by-side facing one pole (N) of the permanent magnet (DM) and the pole plate (PL) contacts the opposite pole (S) of the permanent magnet (DM), to define two magnetic circuits. One magnetic circuit has a small air-gap and the other has a large air-gap, with the field lines (LT2) of the second magnetic circuits extending through the developer mixture. A measuring circuit for evaluating the toner concentration is connected to the two field plates (FP1, FP2).
Patent DE-2709262-A1 (DE)
Title: Stacking chairs with hinged arm-rests - has chair with side member curved to match that of chair stacked above it
IPC: A47C7/54
Filed: 1977-03-03
Abstract: The side member (4) of a stacking chair has a flange with two holes for fixing to the legs. The side member (4) is curved to enable the side member of another chair to be stacked above it sothat the outside curve of the upper chair fits the inside curve of the lower chair. The arm rest (10) is mounted on a hinge (11) with its axis horizontal so that the arm rest can be swung upwards and outwards. This outward swinging movement enables a wide and comfortable arm set to be used which does not interfere with the close stacking of chairs.
Patent DE-2716715-A1 (DE)
Title: Chimney for garden fire for outdoor cooking - has concrete cowl constructed in sections which spigot together
Inventor: WEIDMANN CHARLIE
IPC: F24B1/18
Filed: 1977-04-15
Abstract: The chimney has an ash pit (3) and fire sections (2) which are open on one side. They are surmounted by a cowl section (1) which is closed on all sides. The entire structure tapers towards the top. The cowl part is made in separate sections (10, 11) which are fistted together by means of a spigot joint (8). The lower cowl section fits onto the top fireplace section (12) by means of a similar spigot joint. This joint leaves on internal lip flange (15) round the base of the cowl. The flange diverts downdraughts of cold gases into the centre of the chimney where they are carried up by rising hot gases. The spigot joints make assembly easy enough for d.i.y.
Patent DE-2718427-A1 (DE)
Title: Quick release tensioned diac brake pad mounting - keeps pads in place by axially spring loaded swivelling arm
Inventor: HARTIG WALTHER
IPC: F16D65/095
Filed: 1977-04-26
Abstract: The disc brake pad mounting is quickly released without tools and without removing parts of the assembly. The brake assembly consists of disc (2) and cover (3) fitted together by bolts (4). The housing has a pad compartment (5) which is open in radial direction, accommodating brake pads (6, 7) fitted to slide axially. The opening of the pad compartment is covered with holder element (8) seated to allow its arm (9) to swing on a bolt (10). The arm (9) is rigidly connected with a bush (11) which can rotate and also slide on the bolt (10). The extreme end of the element (8) has an angled-down flap (21) adjacent to the cover (3). The flap carries pin (12) which fits into a recess on the cover. The spring (18) on the bolt (10) forces the pin into the recess. To remove the pads the arm is slid back to disengage the pin from the recess and the entire arm is swung round so that the pad can be removed.
Patent DE-2718840-A1 (DE)
Title: Dental extraction tool with leverage action - has plate spanning tooth to be extracted, acting as fulcrum, resting on adjacent teeth
Inventor: MIES HEINZ DR
IPC: A61C3/14
Filed: 1977-04-28
Abstract: The dental operating instrument for extracting a tooth has a loop (3, 6, 7) on the ends of a handle (8) which is positioned around the tooth, this loop forming a support for tooth clamping members. At the same time, it forms a fularum for applying leverage to the clamped tooth. The end port (3) of the loop also bridges the side arms (6, 7) and a vertical screw (11) passes through it. This screw carries a curved horizontal strap (10) whose ends (10b, c) can rest on a tooth each side of the tooth to be extracted. The tooth is gripped between a clamping plate (2) one side and the base (3b) of an extension (3) of the opposite side arm (7). This clamping plate is forced inwards by a horizontal screw.
Patent DE-2719651-A1 (DE)
Title: Tidal flow water wheel - has guide plates shaped to give same rotation for ebb and flow tides
Inventor: SCHUMANN GEORG
IPC: F03B13/08
Filed: 1977-05-03
Abstract: Several water wheels are mounted vertically above each other in an estuary or other tidal stretch of water. The number of wheels depends on the depth of the water. There is a shaped baseplate underneath the bottom wheel and a shaped upper plate above the top wheel. The wheels are separated by intermediate plates which have undersides shaped as a top plate for the wheel below and upper sides shaped as a bottom plate for the wheel above. The plates are shaped so that the water is guided onto the wheels below the centreline from one direction and above the centreline from the other direction. This makes the direction of rotation the same for both directions of flow.
Patent DE-2727370-A1 (DE)
Title: Capacitive measurement voltage transfer circuit - has synchronised changeover switches for reference voltage independent transfer to evaluation circuit
Inventor: MARGARIS PANAJOTIS ING GRAD
IPC: G01R19/00
Filed: 1977-06-14
Abstract: A circuit includes a capacitor which can be connected to a measurement voltage and an evaluation system via two synchronised changeover switches. It enables transfer of the measurement voltage to the evaluation circuit independently of the reference potentials of measurement voltage and evaluation circuit. The capacitor (1) is either connected to the measurement voltage (U1) via contacts (11, 12) of the changeover elements (4, 9), or to the evaluation circuit (17) via the other changeover contacts (13, 14). As the elements change over the capacitor transfers the voltage (U1) to the evaluation circuit inputs (15, 16).
Patent DE-2727441-A1 (DE)
Title: Plastics, flexible shipping container for flowable bulk goods - comprises reinforced plastics woven tape fabric with pref. polyamide polyester or aramid reinforcing bands woven into it
IPC: B65D88/16
Filed: 1977-06-18
Abstract: Container for particulate bulk material comprises a flexible container body with reinforcing webbing at >=2 opposite sidewalls, for fastening carrying loops. The container body comprises a reinforced textile, a plastics-tape fabric with the reinforcing webbing woven into the textile. The container bottom and 2 opposite sidewalls with reinforcing webbings consist of 1 continuous web with longitudinally extending reinforcing webbings. Pref. the platics-tape fabric consists of polyethylene or polypropylene whilst the reinforcing webbings are made of polyamide, polyester or aramid.
Patent DE-2731190-A1 (DE)
Title: Room air conditioning system - incorporates air take=off housing with projecting flange having electrical conduit passages
Inventor: SCHMIDT FRIEDRICH HARALD
IPC: F24F13/02
Filed: 1977-07-09
Abstract: The ventilation/air conditioning system is for rooms using air inlet sockets in the floor. The sockets are connected as air take-offs to outlet via releasable air-tight, couplings, having associated electrical conduits. The cylindrical housing (14) of the air take-off point (10) has an outer flange-like projecting circumferential ring (15). The ring has passage (16) for electrical conduits. The ring surrounds the housing eccentrically, and is integrally formed with it. The recesses (19) in the ring circumference (18) have inserted soft elastic seals (22), with a cap, having co-axial circular grooves and a vertical groove in the outward facing side wall.
Patent DE-2732134-A1 (DE)
Title: Sloping sided dam construction - includes two zigzag plastics skins sloping towards each other to form central core between them
Inventor: LIST FRANZ DIPL ING
IPC: E02B3/10
Filed: 1977-07-15
Abstract: The method of constructing a dam with sloping sides facing inwards and outwards uses a zig zag plastics skin insert incorporated within the interior, forming a core. A triangular cross section layer, apex downwards, is formed below a datum level, based on the first step(12a) of the zig zag layer. This contains medium sizes stones and rocks, and is surrounded by a layer containing smaller rocks and stones. The edge of the skin is fullest upwards and backwards onto the next fold of the zig zag, and anchor pins(23) inserted on a slope, passing through a supporting layer(17) and into the triangular layer below. The next fold(12) of the zig zag is made, building up a support behind it in successive layers(25 to 28), above the datum level. The main rock layer(10) is based on this datum level.
Patent DE-2732854-A1 (DE)
Title: Processing vanadium slags - by roasting, leaching precipitating vanadium and chromium and recycling waste water (NL 23.1.79)
Inventor: ZIEHL LUDWIG DIPL CHEM DR
IPC: C22B34/22
Filed: 1977-07-21
Abstract: V slags are processed by (a) oxidising and roasting the slag with alkali metal salts, (b) leaching the roasted material, and (e) pptg. V from the leaching soln. by means of H2SO4 at an elevated temp. Cr is removed from the soln. by adding a hydroxide giving a ppte. which is removed, and the waste soln. is utilised for leaching the roasted prod. in (a). The process is more economical as water consumption is reduced, and by recycling the waste soln. environmental pollution is prevented.
Patent DE-2735675-A1 (DE)
Title: Spacer for edge zones of multiple glass pane - has T=section profile with two enclosed melted seals
IPC: C03C27/12
Filed: 1977-08-08
Abstract: The spacer is formed by a single-piece 'T' section, hollow, metal profile with >=1 (partly) hollow chambers. The leg of the T forming the spacer has recesses or projection as stops for the glass, between which two melted-in joints are provided. The profile of the spacer pref. include a flexible rib which balances out the length tolerances and absorbs shock-loading. The support, for a double-glazed window pane etc. makes a seal between the edge zones of the glass panes and the spacer which effectively prevents the penetration of humidity. In addn. the edges of the panes are protected against damage by a frame, the depth of which is equal to the thickness of the finished double pane.
Patent DE-2736618-A1 (DE)
Title: Continuous transfer printing machine for textile web - applies pressure belt over printing foil and textile webs slung over rotating drum
Inventor: MEISEN KLAUS
IPC: B41F16/02
Filed: 1977-08-13
Abstract: Continuous transfer printing of a textile web is carried out by rotating drum. A printing foil web carrying dye stuff capable of sublimation and the textile web itself are slung over the drum. A pressure belt is applied on top of these webs. The drum cover, printing foil web and pressure belt are pervious to gas or air. The webs and the belt are subjected to a cross stream of gas or air. The latter is infinitely variable as is the longitudinal tension of the pressure belt.
Patent DE-2737485-A1 (DE)
Title: Exit path guidance system for personnel evacuation - includes several guidance signs operated by received alarm signal
Inventor: KAWAMURA MASANORI
IPC: G08B5/36
Filed: 1977-08-19
Abstract: The exit guidance system is used to evacuate personnel from a danger zone, in reponse to toxic gases, explosive gases, or smoke etc. being detected. A number of detectors and respective evaluation circuits supply signals to the guidance system, which subsequently energises a series of illuminated guidance signals indicating the appropriate exit route. Pref. each guidance sign has two arrows pointing in opposite directions, either one of which can be illuminated, in dependence on the location of the danger.
Patent DE-2738486-A1 (DE)
Title: Heat radiation unit for wood veneer press - has radiation concentrated in sealed hollow space and with optical screen control
Inventor: FRITZ KARL DR
IPC: B27D1/02
Filed: 1977-08-26
Abstract: The process for heating surfaces by accurately timed and located heat radiation, e.g. in woodworking venear presses, has radiation concentrated onto the surface, in a hollow space completely sealed to radiation. The action on the object being treated is regulated by optical shuttering. All reflective and absorbant parts may be forcibly cooled. The shutter screens may be profiled or recessed to produce special temporal and spatial radiation sequences. This obviates undesirable effects of radiation on the surroundings and of inadequate switching speed.
Patent DE-2740375-A1 (DE)
Title: Plank cutting and separating machine - has conveyor with cut plank supporting surfaces diverging in wedge pattern from saw blade
Inventor: BAEURLE KLEMENS
IPC: B27B31/00
Filed: 1977-09-08
Abstract: The machine cuts to length and separates planks, these being delivered sideways simultaneously to a saw. the saw conveyor delivers the planks to supporting surfaces whose length that of the sawn planks. The distances between these surfaces(18) in the travel direction increase in a wedge pattern from a vertical centre line formed by a central blade (15) of the saw. Each surface can be arranged to work in conjunction with a bin (32) or conveyor, receiving the cut planks.
Patent DE-2741486-A1 (DE)
Title: Copolymer membranes for oil-water sepn. - of (meth)acrylonitrile! with (meth)acrylic! acid or maleic acid or anhydride
Inventor: HATA YASUO
IPC: B01D71/42
Filed: 1977-09-15
Abstract: Membranes for oil-water sepn. produced from random copolymers of (a) 20-90 wt. % (meth)acrylonitrile and (b) 80-10% (meth)acrylic acid and/or maleic acid or anhydride. Pref. copolymers are made from 20-80% (A), and 80-20% (B) which consists of acrylic and/or methacrylic acid or of maleic acid and/or anhydride. Up to 40 wt. % of (A) may be replaced by 1-4C alkyl (meth)acrylate, (meth)acrylamide, styrene, butadiene, and/or isoprene to improve the physical properties. The membranes are used for removal of oil from water effluent, sepn. of water-hydrocarbon mixts. in the chemical industry, recovery of solvents, etc. The copolymers are readily converted to membranes in the form of films, hollow fibres, etc. which have excellent separation ability allowing passage of water while retaining oil. No energy is required for sepn. and oil content of effluent water is reduced to a few ppm.
Patent DE-2744123-A1 (DE)
Title: Lead zirconate titanate piezoelectric ceramic - contg. manganese and niobium, with min. temp. coefft. of mechanical quality
Inventor: MOHAUT JUTTA
IPC: C04B35/491
Filed: 1977-09-30
Abstract: In a new piezoelectric ceramic (I) of the Pb zircontatetitanate system with Mn-Nb complex portion PbZrxTi1-x-z(MnaNbb)z O3, the ratio a:b is 1:4 to 1:6 with 0.42  x 0.44 and 0.75  z 0.125. (I) is produced by reaction for 1.5-2.5 h at 850-1000 degrees C and sintering for 1.5-2.5 h at 1280-1320 degrees C. Min. temp. coefft. of the mechanical quality is attained with retention of the temp. coefft. of the resonance frequency and opt. the dielectric constant.
Patent DE-2747677-A1 (DE)
Title: Intermediate plate for coupling frame to camera - has fixed and movable tapering pressure faces on seat set by clamping screw
Inventor: FEIERLEIN HEINZ
IPC: G03B17/56
Filed: 1977-10-25
Abstract: The intermediate plate couples a frame to an instrument e.g. a camera. A clamping plate is screwed to the frame and a plate is joined to the instrument, fitting in a flat seat in the clamping plate and gripped by a clamping device attached to the latter. To hold the instrument plate (3), the clamping plate (2) has two tapering pressure faces (7, 29) fitting against mating faces (10, 11) on the instrument plate, on the seat (4). One of these tapering faces is fixed (7) and forms a seat end face, while the other is part of a movable and lockable clamping member (14), which exerts a force at right angles to the two tapering faces.