baber/WOPTO huggingface dataset:
Patent DE-2224768-A1 (DE)
Title: Fume removal - from coke oven battery buildings
Inventor: HOELTER HEINZ
IPC: C10B33/00
Filed: 1972-05-20
Abstract: Process and appts. for suction of fumes from a building enclosing a coke oven, and more esp. a coke quenching bay, whereby the base ventilating load is collected in the region above the coke oven chamber doors but not in the roof space of the building and is passed to a high capacity washer, while the vols. of air of higher dust content arising intermittently in accordance with the coke discharge process are collected in the roof space and passed to a medium pressure washer having a continuously running motor drive but also an adjustable variable pitch impeller upstream which can be intermittently operated at 100% suction capacity during the coke discharge periods and adjusted to idling operation at other times.
Patent DE-2300012-A1 (DE)
Title: Casting large plastic reproductions of monuments - by using mixt. of polyester resin, paraffin, accelerator, diluent and stone
Inventor: KUHN ELMAR
IPC: B44C3/04
Filed: 1973-01-02
Abstract: Accurate, cheap weather-resistant reprodns., e.g., of ancient relief sculptures or tombstones; for indoor or outdoor decoration or for educational purposes in schools, consist of large plaster casts made by using a casting compsn. contg. 1 pt. polyester resin, 1/20 pts. paraffin soln., 3/100 pts. accelerator, 2/100 pts. diluent and 3 pts. ground stone; mixing and casting into a -ve mould made out of same compsn. or out of a silicone-rubber compsn., and hardening after about 1 hr. Pref. -ve mould is brushed with a paraffin soln. before casting. Stone may be used with a dry oxide pigment, to match colour of original. Large pts. can be provided with cavities and recesses, to save material and reduce wt.
Patent DE-2304364-A1 (DE)
Title: Spot welding of fastener to trowel blade - using unequal contact surface electrodes, the larger contacting the trowel blade surface
Inventor: JORZYK KURT
IPC: B23K11/11
Filed: 1973-01-30
Abstract: The fasteners for handles are attached to bricklayers blades by spot welding without impairment of the trowel blade surface by employing a relatively larger contact area electrode against the working surface of the blade and a smaller contact area electrode against the fastener rear surface. The method is used for fixing a corrugated strip which is forced mechanically into grooves in the handler, to the rear of a smoothening trowel.
Patent DE-2306211-A1 (DE)
Title: Sampling system for radioactive or corrosive liqs or vapours - partic water or steam in a nuclear power plant
Inventor: PRZIBRAM EVA DR
IPC: G01N33/00
Filed: 1973-02-08
Abstract: In a sampling system for radioactive or aggressive liq. or vapour media flowing in pipelines (main pipe) from which a tap-off pipe leads to a sampling table where a tap-off point as well as at least one measuring device is provided, a return flow pipe is provided from the sample table to the main pipe and at least one tap-off path with quick acting coupling (self closing plug couplings) on both pipes for the connection of a sample vessel or measuring device is provided between the tap-off and return pipes, and is bridged by a by-pass pipe.
Patent DE-2307236-A1 (DE)
Title: Stop-off material for selective gas carburising of steel - contg. boron oxide, a synthetic resin and an organic solvent
Inventor: LAKE LESLIE THOMAS
IPC: C23C8/04
Filed: 1973-02-14
Abstract: The material contains boric acid and/or boron trioxide a synthetic resin which can be removed after steel treatment without leaving a carbonaceous residue, and an org. solvent for the resin. Specific. resins are (co)polymers of (meth)acrylic acid esters, e.g. lower alkyl esters, and copolymers of the esters with monomers such as ethylene. Generally the stop-off compsn. is (by wt) >=5 (pref. 10-30)% resin >=30 (pref. 45-75)% boric acid and/or boron trioxide and >=7.5% (pref. 10-50) solvent. A high b.pt. coal tar distillate may be added to improve film-forming props. The stop-off can be removed easily by washing with warm or hot water to leave a bright surface.
Patent DE-2307468-A1 (DE)
Title: Isomerisation of unsatd alcohols - using transition metal catalysts
Inventor: NINAGAWA YOICHI
IPC: B01J31/00
Filed: 1973-02-15
Abstract: Isomerisation of unsatd alcohols (where R = satd. or unsatd. aliphatic or cycloaliphatic or aromatic or araliphatic radical, opt. substd., R2 and R3 = H or lower alkyl, and R and R2 may be bound together) into an unsatd. alcohol (II) or isomerisation of alcohols (II) into alcohols (I), is carried out using catalysts comprising cpds of transition metals of Gps V, VI and VII. Prefd. catalysts are cpds of V, Mo, Cr, W or Re esp ammonium vanadate, -molybdate, -tungstate or -perrhenate, or acetylacetonates of V or Cr. The reaction is pref. effected under N2 at 100-300 degrees C using 0.05-3 wt. % catalyst based on alcohol. Process is esp. useful for isomerising linalool into a mixt. of geraniol and nerol, useful as perfumes and inters. in the prodn of medicines.
Patent DE-2311702-A1 (DE)
Title: Gypsum-water mixer - consisting of a funnel with helical profile agitator
Inventor: ZENNER HERBERT
IPC: B01F15/00
Filed: 1973-03-09
Abstract: An agitator projecting into the cylindrical bottom section of a mixing funnel comprises a central shaft on which is mounted through its two ends a helical spring, the o. d. of which is only slightly less than the bore of the cylindrical section of the mixing funnel. The spring is pref. suspended from eyes on the square cross section shaft. The mixer design greatly reduces the risk of encrustation.
Patent DE-2315725-A1 (DE)
Title: Metal castings automatic transfer - by grate traverser from shaking screen to cooling box conveyor
Inventor: QUEDNAU HORST
IPC: B22D33/06
Filed: 1973-03-29
Abstract: Castings are automatically transferred from a moulding box to a vibrating screen for removal of the sand and then to a cooling box. The upper part is lifted off from the lower part of the mould box, and the lower part is turned over to drop the casting to the vibrating screen. When the sand has been removed by shaking, a traverser raises the casting by bar fitting between the grate bars of the screen and transfers it to a cooling box on a conveyor. The moulding sand sepn. is combined with the ejection of the casting from the mould. This reduces the time required for cooling and results in a shorter mechanical moulding plant.
Patent DE-2318978-A1 (DE)
Title: Compost prepn from sewage sludge - using reactor with controlled air inlet
Inventor: KNEER FRANZ
IPC: C05F17/00
Filed: 1973-04-14
Abstract: A thermally insulated aeration reactor is loaded continuously at the top with sludge mixed with an org. carbonaceous support such as peat, sawdust and straw as well as bentonite flour. Air is introduced by a blower and is enriched with oxygen from a recipient; the mixt. is blown through fine nozzles into the mass of matl., which is kept moist by a water-dripping system. The reactor is kept full, decomposed matl. being drawn off at the bottom to balance new matl. added at the top. Probes sample the air mixt. at a number of points and its oxygen or CO2 content is shown on a recorder. Temp. probes likewise record the temp. at different levels in the reactor. These readings jointly serve to control the decompsn. process through adjustments to the air inlet. The bentonite is added at the rate of 7.5-12.5 kg/m3 of sludge; it exchanges its calcium ions for the unwanted sodium and heavy metal ions. Its silicon cpds. also form insoluble complexes during the decompsn. process; these act as soil improvers.
Patent DE-2335160-A1 (DE)
Title: Respiratory protection mask - spaces for mouth and nose completely separated
Inventor: WEITZENBOECK HANS DIPL-ING
IPC: A41D13/11
Filed: 1973-07-11
Abstract: Respiration protection mask has the spaces in front of the nose and the mouth, respectively, separated so that expired air is completely separated from air breathed in. Preferably the eyes are in the breating space, preventing fogging of the window. The nose and eye space is sealed off by a soft, porous plastics foam strip which also acts as a filter, from the outer air. The mouth space is the free ambient air. The inspiration space around the nose and eyes may be completely sealed, and connected to the ambient air by a filter. Each space may have a non-return valve.
Patent DE-2346041-A1 (DE)
Title: Endless conveyor belt mechanical counter for car wash - has swing counter arm on vertical shaft extending into item path
Inventor: LENZ CLAUS DIPL ING
IPC: G06M1/08
Filed: 1973-09-13
Abstract: The mechanism is particularly for car-washing booths, with a swing counting lever extending into the path of the items to be counted and whose movement is transmitted by a switch cam to the counting mechanism. The lever extends horizontally and is mounted on a shaft perpendicular to the plane in which the items are conveyed. At the lower end of the shaft is a locking lever, which, when the counting lever swings back, extends into the path of the bottom belt return run. The shaft passes through a lockable housing containing the counting mechanism. The shaft can be divided inside the housing, lugs protruding from the mating ends, between which lugs a switch with pressure spring is mounted. One shaft end can have a bush into which the other shaft end is spigoted. The lugs are attached to the bushes and the switch cam to one of them.
Patent DE-2351430-A1 (DE)
Title: Fluorescent bleaching composition for detergents - prepd by grinding com-pressed filter cake contg. bleaching agents with anhydrous sodium sulphate
Inventor: LANGSTROTH THEODORE ASHMEAD
IPC: D06L4/664
Filed: 1973-10-12
Abstract: Grinding is effected at 20-60 degrees C in the presence of at least one and not more than 8 molar equivs. of anhydrous sodium sulphate for 10 mol. equivs. of water present in the filter cake until the crystals are reduced to an average size of about 5 mu no crystals being >15 mu; the resulting prod. is dried to remove all or some of the water present. In general the compsn. contains 2% water, and is readily sol. or dispersible in water or aqs. soap or detergent solns. The fluorescent bleaching agent is pref. disodium 4:4'-bis-(4-anilino-6-morpholino-s-triazin-2-ylamino)-2:2'-stilbe- ne-disulphonate.
Patent DE-2402770-A1 (DE)
Title: Drive arrangement used as power or processing unit - rotating piston formed by a piston plate moves within a cylindrical housing and is adjustable towards axis
Inventor: BEHR FRIEDRICH DIPL ING
IPC: F01C9/00
Filed: 1974-01-22
Abstract: Drive for power or processing machine, has a shaft and a rotating piston, formed by a piston plate with a cylindrical circumference area. The piston plate is rotatable in a cylindrical housing and adjustable in the direction of the axis, adjoining with the whole of the circumference, the inner circumference wall of the housing. The inner chamber of the housing is limited at both ends by cone shaped coating surfaces with their centre lines co-axial, but extending offset parallel in relation to the housing axis with the points of the coating surfaces directed towards each other and with half the angle of the cone corresponding to the angle of inclination of the piston plate. Two rotatable drum sections turnable around the axis of the cone shaped coating surfaces are fitted in the housing forming a guide for the piston plate between them.
Patent DE-2406537-A1 (DE)
Title: Accurate pipette esp. for medicinal substances - has hollow piston and predetermined variable piston stroke
Inventor: HORN ANTON DR
IPC: B01L3/02
Filed: 1974-02-12
Abstract: A mechanical hollow-piston pipette is intended for mutliple use in dispensing equal volumes of substances with high accuracy. It comprises upper and lower housing parts joined together and contg a slender, hollow piston actuated by a push knob at the top of the housing. A predetermined stroke is provided and can be varied by insertion of spacers between the parts of the housing or between plug inside the housing and the lower part. In particular, it is possible to fit to the end of the pipette nozzle and extension cone to receive a further tube, e.g. containing a centrifuged prod. such as blood plasma.
Patent DE-2408461-A1 (DE)
Title: Synthesis gas made in slagging producer - charged from a coke oven via a hot coke extractor
Inventor: VOLLHARDT FROHMUT
IPC: C10J3/66
Filed: 1974-02-22
Abstract: Synthesis gas is produced in a slagging producer from coke which is charged to it hot straight from a coke oven through a pressurised coke extractor. Scorifying agents are introduced into the extractor which is heated by the flue gases of the coke oven or the gas produced in the coke oven, directly or indirectly. This results in a better utilisation of the heat content of the production media. It allows a great flexibility for a varying production of synthesis gas, coke and coke oven gas.
Patent DE-2409298-A1 (DE)
Title: Electromagnetically-driven piston - has dumb-bell shape with hammer-heads linked by magnetised rod and driven by coils
Inventor: TOKUNO TOMOTOSHI
IPC: H02K33/08
Filed: 1974-02-27
Abstract: The electromagnetically-driven piston has a hollow outer cylinder enclosing a laminated from iron core with coils embedded in its inner surface. The axially moving piston travels inside this iron core through the toroidal coils. The piston has the shape of a dumbell with hammer heads at each end and a central portion which is magnetised by a constant d.c. current flowing through a tubular coil around it. The toroidal coils are collected into two groups, each around one hammer head, and are supplied with an a.c. current so that the piston shunts backwards and forwards.
Patent DE-2412112-A1 (DE)
Title: Corrosion-preventing additives for hydrocarbon fuels - consisting of 21C dicarboxylic acids and derivs
Inventor: WARD BENJAMIN F
IPC: C10L1/18
Filed: 1974-03-13
Abstract: Additives comprise 1-200 ppm (pref. (5 +100) ppm of liq. dicarboxylic acids of formula (I) (in which x and y are 3-9, x+y is 12, one Z is H and the other COOH) and/or their amide derivs. and/or monoamide derivs. of their soaps. The derivs are pref. mon- or di-alkanolamides, or the mono-alkanolamide of a soap. the hydrogenated acids may also be used. The acids are readily obtd. from linseed oil acids, and may be mixed with other fatty acids. Corrosion of metal parts e.g. engines, tanks, etc., in contact with fuels contg. water is prevented.
Patent DE-2414674-A1 (DE)
Title: Rectangular-plan varied-level garden paving slab - with planes at different levels interconnected by curved transitional sections
Inventor: MEURER EBERHARD
IPC: E01C13/00
Filed: 1974-03-27
Abstract: The paving slabs are designed for simple joining together to form layouts of varying shapes and levels, in gardens, children's play areas and similar spaces. They are rectangular in plan, and have planes offset relative to each other at different heights, connected by transitional areas which are arched. Various combinations of this two-level arrangement are possible, including slabs with sunken recesses or those designed for fitting on corners where a line of raised sections forms a border curb to the lower-level areas. There may be cutouts for water runoff. The slabs may be hollow, and may be made of concrete or plastic. The two levels are constant in each type of slab, for easy assembly together, and easy stacking for transport or storage.
Patent DE-2420663-A1 (DE)
Title: Regenerating and rating circuit of keyed flip-flop type - has two integrated inverting amplifier stages and gate electrodes of different materials
Inventor: MEUSBURGER GUENTHER DIPL ING
IPC: G11C11/4091
Filed: 1974-04-29
Abstract: The amplifier stages each consist of a switching transistor nodes of the regenerating circuit. The switching transistors are so rated that their starting potential corresponds to the most favourable average value UM = 0.5. (UBO + UB1). The starting potential of the switching transistors can be (+-) 20% of the most favourable average value UM. The gate electrodes of the load transistors and switching transistors are made of different materials, the work function between the gate electrode material and the sub-layer of the switching transistors being greater than the corresponding work function of the load transistor.
Patent DE-2426667-A1 (DE)
Title: Collapsible portable chair with back-rest - swivel and rotational joints between frame members permit complete folding
Inventor: MINSKER LAWRENCE D
IPC: A47C4/24
Filed: 1974-06-01
Abstract: The collapsible portable chair has a U-shaped frame (29) forming a slide and guide for the seat (17) and swivel connected to the back rest (15) and back legs (12) whilst the front legs (11) are swivel connected to the rear legs and the back rest. Slide members attached to the U-frame (29) are housed in a slot (22) in the seat (17). The chair can be folded up into a small carrying unit by moving the rear legs (12) towards the front legs (11) by rotation about the swivel joint (23) which connects the legs together. During this movement the back rest connected to the front legs by the swivel point (28) moves forward and down until it lies parallel to the chair legs. The U-frame which is connected to the seat at the fulcrum (19) slides back over the swivel joint (24) in the slot (22) in the seat (17).
Patent DE-2433418-A1 (DE)
Title: Thermostat for hot plates - has bimetal strip extended by rigid arm engaging contact elements under bimetal control
IPC: H01H37/52
Filed: 1974-07-11
Abstract: The high sensitivity thermostat is intended for hot plates of a cooking range and has a bimetal strip, clamped at one side, affecting the respective contact elements. The bimetal strip (6) is extended by a rigid arm (17) engaging the contact elements (4). Preferably the rigid arm is inserted on the bimetal strip. It may have a U-shaped cross section so that the inside of its tranverse strip abuts one side of the bimetal strip, while sections of its shanks abut the bimetal strip other side. The bimetal strip free end may have a section or reduced width, engaging between the shanks of the U-shaped arm, while the shank sections protrude over the transverse strip of the arm.
Patent DE-2435094-A1 (DE)
Title: Walking or jumping aid - is made as shoe attachment and consists of steel springs or plastic foam in thick unit under sole of shoe
Inventor: BRAUN F HERBERT
IPC: A63B25/10
Filed: 1974-07-22
Abstract: Walking or jumping aid for children or adults consists of spring units which are fastened to the soles of the users shoes. The unit (2) is either fitted or attached below the shoes (1) and inside the unit (2) are flexible means which are compressed during walking or jumping and produce a spring action. The flexible means inside the unit may consist either of steel springs (4) the size or tension of which may be adapted to the size of the shoe and the corresponding use as walking or jumping aid, or may be made from plastics foam material.
Patent DE-2441957-A1 (DE)
Title: Manual operated awning drive gear assembly - with locking bolt to engage drive shaft and engageable by ratchet wheel
Inventor: ERB WALTER
IPC: E04F10/06
Filed: 1974-09-02
Abstract: The gear comprises a gear housing, drive shaft for coupling with hand crank, drive shaft for coupling with shaft to be driven, and locking device with ratchet wheel with partially serrated periphery, rotatably mounted in the housing, and drive toothing working in conjunction with this, rotatably linked to a transmission shaft. A locking bolt (28) is mounted in the drive gear housing (18), and can be brought into engagement with the drive shaft (21); a ratchet wheel can be brought into engagement with the locking bolt, for its activation. There may be a spring acting on the locking bolt, pref. in the release direction. Rotational moments acting on the drive shaft are not transmitted to the serration in the lock position.
Patent DE-2442115-A1 (DE)
Title: Dense sintered ceramic dielectric contg vitrifier - for low loss factor with less redn in dielectric constant and low sintering temp
Inventor: BAUMANN GEORG
IPC: C04B35/468
Filed: 1974-09-03
Abstract: A dense sintered ceramic dielectric with a loss factor of =1 x 10-3 and approx. linear temp. dependence of the capacity, based on TiO2 and/or ZrO2 and/or cpds. of TiO2, ZrO2, SnO2, Nb2O5 and/or Ta2O5 with alkali, alkaline earth or rare earth oxides in the form normally used for the prodn. of ceramic dielectrics, has the compsn: a1 A + a2in epsilon = 1 b1(yiBi.ziMi) (with a1 = 50-97 wt. %; A is a basic material with approx. linear temp. dependence of the dielectric constant; n >=1; n epsilon i=i b1 = 1; a1 + a2. n epsilon i=i b1 = 1; yi = 1-5; zi = 1-5; Bi are oxides of metals or alkaline earth metals of gps. IIa, IIb, IVb, Va or Vb; and Mi are the vitrifiers B2O3 and/or P2O5 and/or SiO2). The dielectric is used in single or multi-layer condensers. The forced decrease in the dielectric constant due to the addn. of sintering aids is reduced, whilst the temp. dependence of the dielectric constant remains linear and the loss factor is max. 1 x 10-3 and wide limiting conditions w.r.t. sintering temp. and baking time are sufficient. A low sintering temp. can be used an energy savings are obtd. in the sintering and electrode baking stages.
Patent DE-2443638-A1 (DE)
Title: Vacuum cleaner nozzle for wet-cleaning of carpets - has textured roller body forcing dirt and liq. up for better suction removal
Inventor: HOTZ GISBERT
IPC: A47L11/30
Filed: 1974-09-12
Abstract: The vacuum cleaner nozzle for removing liquids from textile floor coverings comprises a housing with a fixedly mounted slot nozzle (2) which supports a radially movable but axially secured roller body (4) having a textured surface and engaging round the nozzle opening (3). The ends of the nozzle through which the moisture is taken up are fixed in the housing and the slot nozzle itself forms a seal in respect of the inner face of the roller body. The textured surface of the roller body provides an even pattern over the carpet so as to avoid streaks or irregular formations and it also helps to force out the dirt and liquid thereby increasing the cleaning effect.
Patent DE-2447681-A1 (DE)
Title: Permanent magnet closure for surgical incision - wounds are closed without stitching and directional tissue growth occurs
Inventor: MUEHLBAUER WOLFGANG DR MED
IPC: A61B17/03
Filed: 1974-10-07
Abstract: One or two adhesive strips (2) are arranged parallel to the wound edges having carriers (3) in or on them with side closing pockets into which sets (4) permanent magnets can be placed, or at least one magnet is arranged on one side with a corresponding soft-iron part on the other side. Pref. the magnets are equipped with loops or fasteners and have sterilizable covers which are coloured or identifiable according to polarity. The magnets can be levelled towards the incision to produce a stray field deep into the incision, or they are anisotropic. Alternatively the wound can be taped and a plastic tube containing magnets placed over it. The magnets have a coercive force of at least 4.500 A/cm and a power of at least 120mWs/cm3.
Patent DE-2454226-A1 (DE)
Title: Aircraft tyre with turbine section - has blades vulcanised to tyre walls to provide rotation before touchdown
Inventor: SCHMIDT ERHARD
IPC: B64C25/40
Filed: 1974-11-15
Abstract: Special turbine blades are fitted to the aircraft wheel to cause it to rotate when the undercarriage is down, so that skidding is avoided when the wheels touch the runway. The blades can be fitted directly to the tyre by vulcanisation or they can be part of the wheel disc. Tyre wear is improved, less black skid marks are left on the runway and the tyres do not char on touchdown. The system automatically sets the wheel speed to different landing speeds, due to the different slipstream speed. No complex drive linkage is required.