baber/WOPTO huggingface dataset:
Patent DE-2523411-A1 (DE)
Title: Hot air drying system for items of variable moisture content - has exhaust air valve flap with coupled setting motor to control air flows
Inventor: ROOS FRIEDRICH ING GRAD
IPC: F26B21/06
Filed: 1975-05-27
Abstract: The system is for drying veneers or other items having varying initial moisture contents. There is an automatic control system for the drying atmosphere provided by means of an air moisture content measuring device with an after coupled setting motor and exhaust air flap. The volume of fresh air entering the system is adjusted by the setting of the exhaust air flap so that air exhausted from the end of the drying cycle can be fed into system as a prewarmed air flow.
Patent DE-2526633-A1 (DE)
Title: Metal test piece polishing arrgt. - has vertical rotary arm giving planetary motion to test piece above polishing plate
Inventor: WEIH GUENTER
IPC: B24B37/10
Filed: 1975-06-14
Abstract: A polishing arrangement using a polishing paste without water has a horizontal arm (17) mounted on a vertical column (19). The vertical column can be rotated by a handle (34). A specimen mounting disc (9) is mounted on a shaft (14). The shaft is mounted in ball bearings in a vertical sleeve (12) which forms part of the arm. A gear wheel is attached on the outside of this sleeve. A holder (3) for a polishing specimen has external teeth (6) which mesh with the teeth on the gearwheel mounted on the sleeve. The specimen holder is mounted in ball bearings (8) in the specimen mounting disc. When the handle is rotated, the specimen will move round the sleeve on the arm. The sleeve moves round the vertical column.
Patent DE-2530142-A1 (DE)
Title: Portable electric fan heater - has housing of thermo-plastic material with protective grid
Inventor: LINSS WALTER DIPL ING
IPC: F24H3/04
Filed: 1975-07-05
Abstract: The fan heater has a housing, containing a blower, and a register and protective grid, both positioned in the air flow of the blower. The grid (1) is directly positioned at the register (12), and has decorative surfaces (2), to complement the housing. Cooling surfaces (9) on the grid extend in the blow channel within the cold air flow. The grid has an upper and lower limiting strip (8, 8'), overlapping the blow channel, and projecting over the housing. The grid is fastened via the decorative surfaces, engaging in the housing sides, behind integral noses; and via integral straps (5), engaging in recesses (6) of the central housing section. The grid has rear projections with a fine wire mesh (17) fastened to it.
Patent DE-2531388-A1 (DE)
Title: Coupling pin for attaching wing to model aircraft - is secured by spring wire clip on installation to give flexible coupling
Inventor: NEUHIERL HERMANN DIPL CHEM DR
IPC: A63H27/18
Filed: 1975-07-14
Abstract: A coupling pin (7) is fixed to the root of a model aircraft wing (1a). It is used to attach the wings to the fuselage (1). The pin is forced into the stop bush of the wing root (9) by means of a compression spring (29) thus making the coupling flexible. The pin end which is inserted into the location bush inside the fuselage has a radial groove for the location of a spring wire clip (4). For the assembly or removal of the wings, the U-shaped securing spring clip (4) can be spread so that it is retracted from the coupling pin groove. This is done by moving a hinged lever (12, 14) such that rectangular plates (13) which are inside the U-bracket force the clip (4) apart.
Patent DE-2539516-A1 (DE)
Title: Silencer for hand held IC engine - has outlet injector for cooling air to mix with exhaust in diffusing action
Inventor: RIEHL KALR-HEINZ DIPL ING
IPC: F01N13/00
Filed: 1975-09-05
Abstract: The silencer is intended for powered agricultural or forestry tools. It has a silencing chamber (10) with a flanged inlet pipe (11) for the engine exhaust. The outlet (13) from the silencer is in the wall opposite the inlet. A second wall (15) is placed at a short distance from this back wall to leave a small space (14) between them open at top and bottom. The outer wall (15) is profiled to form a venturi throat (17) opposite the silencer outlet (13) which makes an inlet jet into the throat. The lower part (20) is shaped as a diffuser. The space between the walls forms an injector which draws in air which mixes with theexhaustand reduces its temp.
Patent DE-2540008-A1 (DE)
Title: Spark plug with interference suppressing resistor - has screening casing with plug-in section protruding over insulator end
Inventor: SCHARR GERHARD
IPC: H01T13/05
Filed: 1975-09-09
Abstract: The interference suppressing resistor is mounted in the spark plug connector insulator. The latter houses also a connector for the ignition cable and a spark plug contact part coupled to the spark plug terminal opening. The insulator is surrounded by a screening casing (11) with a plug-in-section (14) protruding over the insulator (1) at its end with the park plug terminal opening (6). The plug-in section carries two opposite sprung tags (17), inserted into the plug-in aperture (18) of the screening casing. Preferably each curvature centre point of the tags is offset radially in opposite direction from the longitudinal axis (21) of the spark plug connector.
Patent DE-2541114-A1 (DE)
Title: Semi-automated contacting of semiconductor systems - uses two types of strips on separate conveyor belts, one strip type carrying baseplates
Inventor: HEIL GERHARD ING
IPC: H01L23/488
Filed: 1975-09-15
Abstract: Holding metal sheets are used for contacting, in which two different strips are carried on separate conveyor belts. One kind of strips is provided with baseplates, while the other strips afford inserting of the semiconductor systems and at least one holding sheet. These second strips have depressions and retaining pins corresponding to the tolerance of the semiconductor systems and holding sheets thus enabling subsequent adjustment. Between the contact surfaces of the semiconductor system and the holding sheet are subsequently formed mechanical connections. In the following step the semiconductor system and holding sheet combination is inserted on the baseplate, with a possible connection between the holding sheet and the baseplate by soldering.
Patent DE-2541569-A1 (DE)
Title: Frequency dependent attenuator for directional aerial system - has one shorted feeder shunting input and output gate and parallel open circuit feeder
Inventor: REMBOLD BERNHARD DR ING
IPC: H01Q25/00
Filed: 1975-09-18
Abstract: A frequency dependent attenuator is inserted in the feed lines to individual radiators of a directional arial system. There are two feeder lines whose terminal impedance and characteristic impedance as well as electrical lengths are selected to produce specified propagation characteristics. the system uses coplanar and strip conductors between the input and output gates. The energy conversion in the attenuator is performed by an ohmic resistance. One of the feeder lines is a short circuited (5a) coplanar series feeder (3a, 4a) shorted by the ohmic resistance (6a) linking the input gate (1a) with the output gate (2a). The other feeder is an open circuited trip conductor (7a) which is connected in parallel to the output gate.
Patent DE-2544549-A1 (DE)
Title: Battery charging control circuit - has system measuring rate of voltage increase to determine switch off time
Inventor: RIEDER KLAUS HARTWIG DIPL ING
IPC: H02J7/00
Filed: 1975-10-04
Abstract: The application is the charging of accumulators and the prevention of charging current flow beyond the full charged value. The battery is charged from a constant current supply, typically connected to an a.c. source via a rectifier. At intervals the battery potential is tested over a predetermined time and the analog of voltage/time stored and evaluated whilst the test interval timer is reset. If the rate is above a set value charging continues. When, during a subsequent test interval, the evaluation shows that the rate of voltage increase is now below the set value full charge is assumed and the timing circuit utilised to switch off the battery supply.
Patent DE-2559752-A1 (DE)
Title: (2,4)-Diamino (5)-benzyl pyrimidines - with antibacterial activity
Inventor: LIEBENOW WALTER DIPL CHEM DR
IPC: C07D239/48
Filed: 1975-10-17
Abstract: New 2,4-diamino-5-benzylpyrimidines of formula (I) and their acid-addn. salts: (where R is 1-4C alkyl or halogen). Cpds. (I) have higher activity and lower toxicity than trimethoprim. Like the latter, they can be used in combination with sulphonamides. A typical cpd. is (I; R=Me). In an example, this is prepd. by reacting 2,4-diamino-5-hydroxymethylpyrimidine with 2-methyl-6-methoxyphenol.
Patent DE-2600628-A1 (DE)
Title: Automatic vent for sewage pipes - uses kinetic energy of waste flow around U-bend to provide air cushion
Inventor: STAHN ROLF
IPC: F04F10/00
Filed: 1976-01-09
Abstract: The automatic ventilation is for municipal drainage channels, esp. those carrying sewage. The air space above the sewage is ventilated by utilising the kinetic energy of the effluent. The fluid flow sucks in fresh air through a nozzle, and feeds it into the air space. Spaces under atmospheric pressure may also be ventilated in this way. The device has a U-form bend in the main flow pipe, with a partial air cushion formed by weir edges at the inlet and outlet of the horizontal U-bend section.
Patent DE-2600678-A1 (DE)
Title: High temperature fluid safety valve - has seal holder with seal ring lip and locating shoulder
Inventor: DASHNER JAMES WILLIAM
IPC: F16K17/04
Filed: 1976-01-09
Abstract: The safety valve is for high temperature fluid-operated systems, and has a housing forming a ring-shaped valve seat for a lever-operated plug. The valve plug (32) has a seal holder (42) which comprises a projecting shoulder (43) on which a plastic sealing ring is so located that it forms the only contact surface between the valve seat and plug when the valve plug is disengaged. The seal holder (42) is removable from the valve plug (32) and its projecting shoulder (43) has a cylindrical outer surface and a ring lip (42) projecting radially over the inner edge of the sealing ring (46) so as to hold the sealing ring firmly on the holder shoulder (43).
Patent DE-2611660-A1 (DE)
Title: Machine for assembling pipe couplings - has coupling nut secured to pipe by flaring end with joint ring
Inventor: HOFNER FRIEDRICH
IPC: B23P19/08
Filed: 1976-03-19
Abstract: The machine (2) attaches the coupling nut to the end of a pipe in order to make one part of a screwed pipe coupling. The coupling nuts are fed from a container (9) into a chute (11) and then roll on to the end of the arm (17). The joint rings which have an external taper at each end are fed from another container (8) via a chute (10) to the end of an arm (18). The arms (17, 18) are swung upwards by jacks (20, 21) and hold the coupling nut and joint ring one behind the other. The end of a pipe is fed through the coupling nut and a pneumatic ram forces the joint ring into the end of the pipe so that the pipe end is flared and prevents withdrawal of the coupling nut.
Patent DE-2617742-A1 (DE)
Title: Stabilisation of freeze-dried blood plasma - by storage in an atmos. contg. carbon dioxide
Inventor: HEBER HELMUT DR
IPC: A61K35/16
Filed: 1976-04-23
Abstract: Stabilisation of blood plasma is carried out by introducing the freeze-dried plasma (opt. contg. stabilisers) into a protective atmos. consisting of >=2 components and contg. >=5% (pref. 10-50%) of CO2. The prod. can be used as a standard for coagulation tests. The plasma can be stored in the protective atmos. without any significant change in its coagulation parameters. A pure CO2 atmos. is not necessary (c.f. Parent patent). In an example, ten portions (450ml. each) of venous blood were each contacted with 50ml. of 0.1 M citrate buffer (pH 7.0) and centrifuged. The plasma was treated with 1% lactose, 1% sucrose and 4g/l. Hepes buffer, and freeze-dried in ampoules. The ampoules were kept under vacuum (5x10-4 torr) for 3 hr., and the vacuum was then replaced by a mixt. of 50 vol. % CO2 and 50 vol. % N2, in which the ampoules were sealed. The coagulation parameters of the prod. remained practically unchanged after storage at 37 degrees C for several months, or at 4 degrees C for >3 years.
Patent DE-2623887-A1 (DE)
Title: Low mass linear induction vehicle drive motor - has synchronous motors and lateral multiphase drive coils on each side
Inventor: SCHUELER ULRICH
IPC: B60L13/03
Filed: 1976-05-25
Abstract: The lightweight, compact linear induction drive has two sets of laminations (9, 10) enclosed by DC coils (8) and provided with multi phase drive coils (17, 18). The ends of the laminations are open and are bridged by fixed pole pieces (2, 3) forming part of the fixed track, and completing the magnetic circuits. The fixed parts of the system provide a great weight reduction while the design of the drive results in a reduction eddy currents etc. as well as smaller control currents.
Patent DE-2624722-A1 (DE)
Title: Vending machine system with several shelves in chute - has mechanism with lugs and cams allowing shelves to tilt to release goods
Inventor: KLOCKE PAUL
IPC: G07F11/06
Filed: 1976-06-02
Abstract: A vending machine has two or more shelves (3) dividing a chute (1) into compartments. The rear portions of the shelves are curved so as to engage with shafts (2) about which the shelves can tilt. There are lugs (5) on the shelves which engage with projections in the rear wall of the compartment to hold the shelves horizontal. There are projections (9) connected to the shafts (2) which act as cams. Sideways movement of these cams can free the shelves to rotate so as to release the goods to be sold when required. The cams carry frictions faces or stop faces (13).
Patent DE-2632888-A1 (DE)
Title: Lock for rotary switch and sockets - prevents plug insertion and removal when key is out
Inventor: MERKLE PAUL
IPC: H01R13/707
Filed: 1976-07-20
Abstract: The lock previously described in the main patent for locking rotary switches is extended for locking sockets as well. In this case too the key can only be removed after the supply line has been broken ie. after the plug has been removed. The plug can only be inserted after the key has been inserted. Existing levers in the various forms of the lock described in other patents, or an extra lever, can be used to block the socket.
Patent DE-2633993-A1 (DE)
Title: Dry cleaning clothing - using liq. derivs. of methane or ethane and carrying out the cleaning in a totally enclosed recirculating cycle
Inventor: JAEGER WALTER ING GRAD
IPC: D06L1/02
Filed: 1976-07-26
Abstract: Clothing is dry cleaned using liq. derivs. of the methane or ethane series and the whole cleaning cycle is carried out on the totally enclosed cycle principle. The clothing is dried by allowing the liquid cleaning agent to drain away from the drum into a sump and the residual air and agent vapour mixt. is heated using a heater and a fan and then recirculated through the articles. The mixt. is exhausted by a compressor which displaces the mixt. into an air cooled condenser. The gaseous agent is pptd. and the liq. is returned to the sump following removal of moisture in a water trap. Power input is reduced and chemical agent recovery is increased. Pref. the whole cleaning cycle is carried out under partial vacuum pressure and at the beginning of the cycle air is removed from the cleaning drum by inducing an 80% vacuum.
Patent DE-2634149-A1 (DE)
Title: Zirconium oxide mouldings contg. calcium oxide - which are rapidly cooled, after calcining, and aged to obtain large increase in strength
Inventor: GARVIE RONALD CHARLES
IPC: C04B35/486
Filed: 1976-07-29
Abstract: Zirconium oxide ceramic which is partly stabilised by 3.3-4.7 wt.% CaO. The ceramic is pref. employed as a refractory possessing a fine-flaked microstructure with two phases: (a) a metastable tetragonal phase of critical size dispersed in (b) a matrix of cubic grains, where zones (a) are irreversibly converted into the normal monoclinic form when the refractory is exposed to high stress. The ceramic pref. contains 3.4-4.2% Ca, esp. 4% Ca, and the ceramic is baked at 1700-1950 degrees C., followed by cooling at min. 175 degrees C./h, esp. 175-600 degrees C./h to 1200-1450 degrees C., then ageing at this temp., but esp. 1300 degrees C. to obtain max. strength. Ageing may occur by slow cooling from 1400 degrees to 1000 degrees C. Pref. a mixt. of ZrO2 and CaO is moulded, baked 3-5 h at 1700-1950 degrees C., cooled rapidly as above and then either (a) aged; or (b) cooled to room temp. then reheated for ageing.
Patent DE-2636724-A1 (DE)
Title: Engine fuel carburation regulator - has fuel flow rate regulated by combustion air intake to produce reformed propellant gas
Inventor: MASUNAGA KUNIHIKO
IPC: F02M27/02
Filed: 1976-08-14
Abstract: The I.C. engine propellant is a reformed gas which is introduced into a series of jets (11) arranged in a circle at the narrowest part of an intake venturi (9) upstream of the throttle valve (2). The liquid fuel is partially oxidised in a thermal reactor (4). the combustion air for the thermal reactor is mea sured at its intake point (5) by a propeller. The propeller revolutions per minute are transformed into electrical signals. The signals are fed to a computer (7) which produces an output signal to regulate (8) the fuel flow to the thermal reactor. The propellant gas enters the venturi jets via a feed pipe (10) which contains a flow rate regulator valve (10).
Patent DE-2644960-A1 (DE)
Title: Connector or closure for radiator manifold - has screw plug with external longitudinal grooves for passage of fluid into branch pipe close to end
Inventor: SCHOELL GUENTER PROF DR ING
IPC: F16L41/08
Filed: 1976-10-06
Abstract: The connector or closure for a radiator manifold (25) comprises a plug (26) having external longitudinal grooves (22) and provided around the crests between the grooves with a screw thread (23). The plug can be screwed into a corresponding nut thread in the interior of the circular section manifold. The grooves prevent the plug obstruction free communication between the manifold and branch pipes (9) emanating from the manifold in the region of the plug. The plug may be used to connect adjacent lengths of the manifold by the use of opposite hand threads in the respective manifold lengths.
Patent DE-2645232-A1 (DE)
Title: Vertical buffer frame linked to horizontal plate conveyor - is controlled by two pairs of plate sensors which overlap conveyor belts
Inventor: STEFANI FRANCO
IPC: B65G47/51
Filed: 1976-10-07
Abstract: A vertical buffer (1) straddles a horizontal conveyor which moves flat rectangular objects (6). Two parallel ladder type support shelves (25, 26) inside the frame (1) are raised and lowered by means of a gear motor (3) and two chain drives (11). Since the plates (6) overlap the conveyor belts on either side, the support shelves (25, 26) are able to lift the plates along two parallel edges. Photo cell sensors (31, 32), located above the conveyor and similar sensors (33, 34) to monitor the vertical buffer, supply the control box (35) with relevant data. Thus the conveyor and the buffer are coordinated in their movement.
Patent DE-2648541-A1 (DE)
Title: Rotary piston engine with wear resistant seal coating - has similar metal coat vacuum evaporated on to inner housing wall by explosive charge
Inventor: FENGLER WERNER H
IPC: F01C21/10
Filed: 1976-10-27
Abstract: The sliding seal is particularly intended for a rotary piston engine with a trochoidal housing (124) and comprising sealing elements whose outer surface is coated with a thin wear-resistant layer consisting of a molybdenum or tungsten alloy in accordance with the main application. A similar layer (126) is also deposited on the inner surface (120) of the housing wall (124). The layer may consist of a Molybdenum/Ruthenium or Tungsten/Ruthenium or Molybdenum/Rhenium alloy. It may be deposited by evaporation in vacuum. This may be achieved by explosive evaporation resulting from an electric current fed through two wires in the corresponding alloy components which extend side by side through a number of stacked housings.
Patent DE-2650119-A1 (DE)
Title: Manufacture of laminated security glass for windscreens etc. - using silane(s) to bind olefin polymer(s) to glass
Inventor: BECKMANN ROLF DR
IPC: B32B17/10
Filed: 1976-10-30
Abstract: Parent patent describes the mfr. of laminated security glass by combining, on one or both faces of >=1 sheets of silicate glass, leaves of plasticised PVC with the aid of silanes. In this addn., ethylene and/or propylene polymers or partly acetylated PV alcohol (esp. poly(vinyl butyral)) replace the PVC; lamination is done under pressure at 120-200 degrees C. The polymer sheets have Shore A hardness of 40-98 (pref. 50-95). The silanes have formula RnSi(Y)3-nApZ (where R is hydrolysable gp., e.g. Cl or OX, X is 1-8C alkyl, opt. contg. -O- or -S-, or is acyl; Y is 1-18C alkyl; A is 1-10C alkylene, opt. branched. Z is radical contg. epoxy, -C=C-, halogen, -NR1R2 or (R' is H or 2-8C aminoalkyl; R2 is H or R1, R3 is H, CH3 or C2H5); N=1-3; p=o or 1. of Z contains -C=C- the cpds. are used together with a radical former. Depending on the degree of adhesion between the various layers (which depends on the type and amt. of silanes used), the materials can be used in window glass and in other constructional used, in glass for testing projectiles, or in the windscreens of motor cars, railed vehicles, boats, aeroplanes, etc. Replacement of PVC by ethylene and/or propylene polymers gives an improved security glass.
Patent DE-2650454-A1 (DE)
Title: Multi-filament incandescent lamp - has each filament separately connected to current supply circuit to ensure continuous lighting
Inventor: DAEHN KARL-EBERHARD
IPC: H01K9/02
Filed: 1976-11-01
Abstract: The multi-filament incandescent lamp has its filaments connected in a circuit which safeguards that its function is not completely lost during a defect or damage. If one filament is blown, the lamp does not give its full luminous output, but it remains alight. The lamp is particularly suitable for signalling purposes, or motor vehicle illumination. The partial luminous output is also an indication for a necessary replacement.
Patent DE-2652776-A1 (DE)
Title: Stabilised sodium percarbonate mfr. - by precipitating in presence of silicate, then increasing the silicate content of the mother liquor
Inventor: BRAID JOHN EDWIN
IPC: C01B15/10
Filed: 1976-11-19
Abstract: Stabilised sodium percarbonate mfr - by precipitating in presence of silicate, then increasing the silicate content of the mother liquor. Prepn. of sodium percarbonate (I) comprises precipitating (I) from a soln. (pref. of sodium carbonate and hydrogen peroxide) contg. silicate, to obtain particles with a limited quantity (pref. 0.1-2.0 wt %) of silicate distributed in and through them. Sufficient silicate is then deposited on the surface of the particles to improve their resistance to external contaminants. (I) is stabilised against both its intrinsic instability (e.g due to Fe present in reactants) and instability due to external causes. Loss of active oxygen content, agglomeration and corrosion are prevented. (I) can be stored in bulk, safely for several months or even weeks, e.g. prior to in corporation into detergent compsns. Only small amts. of stabiliser, and no special appts. are required.
Patent DE-2653581-A1 (DE)
Title: Optical glass based on oxides of silicon, boron and lanthanum - having high index of refraction and low dispersion
Inventor: ISHIBASHI KAZUFUMI
IPC: C03C3/062
Filed: 1976-11-25
Abstract: Optical glass contains 51-74 mole % of (SiO2 + B2O3 + La2O3). The molar ratio SiO2:La2O3 is 0.33-0.66 (pref. 0.39-0.63, esp. 0.59); B2O3:La2O3 is 0.46-0.86 (pref. 0.50-0.74, esp. 0.59). Glass having high index of refraction (nD=1.84-1.95) and low Abbe number (nu d = 33-43) can be produced on industrial scale at a low cost. The prodn. is facilitated in that the compsn. does not much deviate from the eutectic point so that the fusion temp. is relatively low. The glass does not contain the objectionable thorium oxide (which is often used in commercial glasses having high index of refraction).