baber/WOPTO huggingface dataset:
Patent DE-2447018-A1 (DE)
Title: Tone-neutral paper or plastics loudspeaker membrane - has medium to high frequency sound attenuation increasing from centre towards edges
Inventor: LOESCHER FRIEDRICH AUGUST
IPC: H04R7/12
Filed: 1974-10-02
Abstract: The tone-neutral paper or plastics loudspeaker membrane has the completed membrane treated after production so that its internal attenuation for sound waves of medium to high frequency is such that it is at a minimum in the region of the drive element. The attenuation factor rises continuously or in stages in passing from the drive element to the outer edges of the membrane. The membrane is constructed from two or more layers of paper or plastic which have different attenuation factors for sound waves of medium to high frequency. Damping material may be sprayed onto the loudspeaker core or may be poured onto it from a nozzle.
Patent DE-2457089-A1 (DE)
Title: Austenitic - ferritic chromium-nickel-nitrogen steels - for chemical industry esp food, paper and fermentation industries
Inventor: RIEDL JOSEF DIPL ING
IPC: C22C38/40
Filed: 1974-12-03
Abstract: Corrosion- and heat-resistant austenitic Cr-Ni-N steel, used in mfr. of articles resistant to organic acids contain 0.005-0.065 (0.05)% C, 0.1-1 (0.3-0.6) % Si, 0.5-4 (0.5-2)% Mn, 22.5-28 (23-27)% Cr, 3.5-8 (4-6)% Ni, 0.08-0.4 (0.1-0.3)%N, bal. Fe, and at a ferrite content of 30-70%, are brought to a 0.2% yield strength >75 kp/mm2, with simultaneously good notch impact strength, by primary deformation at >1155 degrees C and further deformation at 1000 to 800 degrees C. Used in the chemical industry, esp. for component parts used in fermentation, food, pharmaceutical and paper industries. Steel alloys resist solns. contg. small amounts of Cl. Thus resistance to stress corrosion in 0.1-1% chloride soln. at 150-250 degrees C is higher than in standard austenitic Cr-Ni steels. 475 degrees C-embrittlement is suppressed and sigma-phase embrittlement at 700 degrees C is very slight.
Patent DE-2458523-A1 (DE)
Title: Embossing matrices prodn. from liq. photopolymerisable compsn. - using mould formed by matrix and frame, for simplicity and speed
Inventor: WERTHER HEINZ-ULRICH DR
IPC: G03F7/00
Filed: 1974-12-11
Abstract: In the prodn. of matrices for embossing by placing a curable compsn. in the patric mould formed with the matrix and curing the compsn., a liquid photopolymerisable material (I) is poured into a mould formed from a matrix and edge suited to the wall thickness of the patrix, (I) hardening to a material with a hardness of 50 Shore A to 80 Shore D, pref. 70 Shore A to 50 Shore D on photopolymsn. with full-tone exposure, with shrinkage of is not >5, pref. 2% (w.r.t. a 10 cm x 10 cm sample ; and (I) is photopolymesd. slowly by full-tone exposure with actinic light and then released from the mould. The patrix pref. is tempered in the mould at 40-100 degrees C, opt. under pressure, after photopolyms. The matrices can be produced away from the printing machine, e.g. in the repro division of the printing works. Installation in the machine, together with the matrices, can be carried out quickly (in a few min.) and without problems. In addn., the properties of the material ensure good embossing quality and high editions at low wastage. The matrices ae re-usable.
Patent DE-2461203-A1 (DE)
Title: Extruded anchor member for furniture - tapped holes for the location of anchor bolts
Inventor: AULBUR KURT
IPC: F16B12/02
Filed: 1974-12-23
Abstract: An anchor element (1) used for the construction of furniture is of extruded plastics, of quadratic or similar cross section. Wall panels or shelves (7, 8) are joined to the anchor strips (1) by means of bolts (3). The bolts have a threaded end (3') which screws into the tapped location hole (2) in the anchor element. The other end of the bolt is located in the sheld or panel where it is secured by a dowel pin or similar fastener (6).
Patent DE-2506646-A1 (DE)
Title: Wheel nut removal tool - has vertical stand with holes at various heights to support end of wrench
Inventor: WOERLE ALFRED
IPC: B60B29/00
Filed: 1975-02-17
Abstract: The device for removal of wheel nuts from powered vehicles has a vertical section (1) having a number of cut-out holes (2) along its length. The axes (3) of these cut-out holes (2) run parallel to one another and at right angles to the long axis of the vertical section. An actuating wrench lever component fits into a section in the mid region of an intermediate wrench which can be inserted by one of its ends into the holes (2) of the vertical section (1) and which has a socket which fits the appropriate wheel nut at its other end. The arrangement allows a large force to be applied downward to loosen or tighten wheel nuts.
Patent DE-2515859-A1 (DE)
Title: Carbon monoxide and hydrogen prodn. - from carbon and water using phosphorus redox cycle
Inventor: HANDWERK GLENN ERWIN
IPC: C01B3/06
Filed: 1975-04-11
Abstract: CO and H2 are continuously produced by (a) oxidising P by contact with steam at 500 degrees -1400 degrees F to produce P oxides and H2; (b) recovering H2; (c) reducing P oxides with C material at 1500 degrees F - ash softening pt. to produce CO and P; and (d) separating CO and recycling the P. Purity of the H2 and CO obtd. is 99% and 80% resp. Only water and C material is consumed and the process is thermodynamically economic.
Patent DE-2523443-A1 (DE)
Title: Spray cabin with water type drip catching system - has air feed provided by water jet pump fed from water circulation pump system
Inventor: HEBEL JACOB
IPC: B05B16/20
Filed: 1975-05-27
Abstract: The spray cabin or chamber has splash or drip catching basin situated in its floor which has a water filling and at least one wall against which water is continuously sprayed. It has a water overflow system and a circulating pump for the liquid as well as devices to feed air through the spray chamber and to separate any dye particles etc. from the circulating water or air. A water jet pump (8) is fed from the water circulatory pump (6) by means of which air is fed into the spray cabin.
Patent DE-2534491-A1 (DE)
Title: Dial gauge for measurement of inside diameters - has additional twin probes for three point measurement and centring
Inventor: RECKERS SIEGFRIED
IPC: G01B5/12
Filed: 1975-08-01
Abstract: The dial gauge is used for determining the inside diameters of tubes, bores etc. The instrument consists of a standard dial gauge (10) with spindle-operated feeler probe (12). Directly opposite to, and on the same axis as the probe, is a bifurcated positioning device (6). This comprises a Y-shaped pair of pointers (14, 15) fixed at their base by a drilled bridging piece (17). The bridge is attached to the rim of the dial gauge housing by a swivel pin so that the arm is free to move about the central axis of the instrument (X). The swivel arms and the main probe tip (B) provide a three-point contact with the inside wall of the bore to act as a self-centring device.
Patent DE-2535239-A1 (DE)
Title: Table top unit for microfilm development machine - has sinks and power unit with mains supply fittings incorporated into work surface
Inventor: FRIES KURT
IPC: G03D13/00
Filed: 1975-08-07
Abstract: A table top unit for a microfilm development machine is constructed such that the table itself has a working surface (4) with at least one sink (5, 6) situated near the machine mounting surface (2) with a space (8) below mounting surfaces (2). A power system unit (13) is mounted below the working surface (4) in the region in front of the sink or sinks (5, 6). The mains input fittings for the power system units (13) are at the rear of the machine support or mounting surface (2) and below its upper surface level.
Patent DE-2535868-A1 (DE)
Title: Impact absorbing car frame - with strengthed passenger compartment and compressed air cushion to roll car on impact
IPC: B62D39/00
Filed: 1975-08-12
Abstract: The strengthened passanger compartment is wedge shaped and is joined to the front engine section by a pivot joint secured by a shear pin. On impact the front section is displaced and the shear pin snapped. At the same time a compressed air bottle under the rear of the compartment releases sufficient air to form an air cushion and tip the rear of the car upwards. The car then rolls forwards absorbing the impact force. The system is designed to provide maximum protection when hitting a solid structure such as a wall. The car tips upwards until the reinforced roof strikes the wall at a glancing angle to slide the car down again.
Patent DE-2540872-A1 (DE)
Title: Fungicidal dichloro phenyl hydantoin derivs. - prepd. by reacting dichloro phenyl hydantoin with halogenated aldehydes
Inventor: RENTZEA COSTIN DIPL ING DR
IPC: C07D233/72
Filed: 1975-09-13
Abstract: New hydantoin derivs. are cpds. of formula (I) (where R is H or CH3; and X and Y are Cl or Br, or X is Cl and Y is CH2Cl). (I) are fungicides with prophylactic and curative activity against phytopathogenic fungi and microorganisms which attack industrial products such as textiles, paints and cellulose-contg. materials. Specific cpds. (I) include 1-(1-hydroxy-2,2,2-trichloroethyl)-3-(3,5-dichlorophenyl)-hydanto- in. In an example, this cpd. is prepd. in 85% yield by stirring chloral with 3-(3,5-dichlorophenyl)-hydantoin in the presence of conc. HCl for 8 hours at 85 degrees C.
Patent DE-2547032-A1 (DE)
Title: PTFE-lined steel pipes or fittings - produced by plastics coating surfaces to be bonded with application of pressure
Inventor: LANGER FRITZ DIPL CHEM
IPC: B29C63/26
Filed: 1975-10-21
Abstract: In the parent patent PTFE-lined steel pipes or fittings are mfd. by coating the surfaces to be bonded with a plastics material, effecting the bonding by application of pressure. In this addn. the plastics material used for this purpose is either a non-vulcanisable thermoplastics or a duroplast. The prods. are suitable for conveyance, under pressure, of corrosive materials, esp. at elevated temps., e.g. above 140 degrees C. There is no risk of delamination of lining from steel mantle.
Patent DE-2552487-A1 (DE)
Title: Extraction hood for domestic kitchen fumes - slidable hood to lead fumes to central channel
IPC: F24F13/10
Filed: 1975-11-22
Abstract: Air is drawn into a housing with sliding flow regulator and an extraction channel. This arrangement prevents return flow of smell laiden air. This extraction hood can be connected to a central air removing shaft, e.g. in a multi-family house. The outlet opening (3) in the extractor housing (2) has moving flap (11) which can be used for hermetical closing of the opening by moving the sliding element (14) into closed position. The flap is actuated by a lever (7) which is pivoted on the housing. This lever is actuated by a front edte (16) of the sliding element. The box shaped sliding element contains a filter (15).
Patent DE-2552530-A1 (DE)
Title: Manually operated grass mower - has forward sloping support plate with runner type foot and hinged lever
Inventor: STEINFELD JOSEF
IPC: A01D34/82
Filed: 1975-11-22
Abstract: The mower (1) has a handle consisting of two arms (4) joined together by a cross piece. On the front of the support plate (5) is a runner type foot (6). On the underneath side of the support plate is a hinged lever (7) with one end hinged and the other end pivot-mounted vertically (8) on the front of the mower's housing. An upward-sloping arm (9) has a bottom, angled end (10) fixed to the front of the mower (1). The arm (9) with its top, slightly curved end pointing to the back of the housing forms a downward-forward-sloping surface (11) on which the support plate (5) loosely sits. A projection (12) on the back, lengthwise edge of the support-plate (5) has an arm (13) hinged to it at the bottom. The top of the arm (13) has a knob type handle (14). An arm fixed at right angles to the cross arm has pivot mounted vertically to it by means of a bolt (17) a tubular clamp (16).
Patent DE-2557513-A1 (DE)
Title: Blast furnace for mfg. molten iron - where hearth is connected to a reservoir for the molten iron
Inventor: FERNANDES ROBERTO
IPC: C21B7/14
Filed: 1975-12-19
Abstract: Casting plant for a blast furnace in partent has the furnace hearth connected to a reservoir for molten iron remote from the refractory wall of the hearth; the reservoir is lined with refractory bricks, is open to atmos. pressure, and is connected to the hearth by a channel at the level of, or just above, the hearth. In the present invention, the novelty is that the channel has a varying cross-section, at least in part, to permit the entry of a rod or oxygen lance for opening the channel, or for closing the channel if necessary. The channel pref. has a constant cross-section near the hearth which increases towards the reservoir. For continuous operation of a blast furnace producing e.g. 1000 tonnes/day, where the connecting channel can be closed by a clay plug or opened by the rod or oxygen lance.
Patent DE-2558713-A1 (DE)
Title: Radiation pyrometer for pipe weld seam or wire drawing measuring - has movable measuring diaphragm for fast changes in zone of observation
Inventor: REGER RICHARD
IPC: G01J5/08
Filed: 1975-12-24
Abstract: A radiation pyrometer has an optical system and a measuring diaphragm to limit the zone of observation. A fixed measuring head is fitted with a movable measuring diaphragm (5) to enable the zone of observation to be shifted. The diaphragm movement is pref. effected by an externally controlled drive (6) and the diaphragm pref. either to and for or in a circle around the pyrometer. Pref. a fixed lens (7) located as closely behind the diaphragm as possible produces an image on the radiation detector (9) of a radiation limiting diaphragm (8) situated between the imaging system (4) and the measuring diaphragm.
Patent DE-2559547-A1 (DE)
Title: Catalytic purification of combustion exhaust gases
IPC: C10L1/30
Filed: 1975-01-09
Abstract: No further information has been published for this application.
Patent DE-2604775-A1 (DE)
Title: Pneumatic manipulator for cord into depression - is for electric cables and has vessel from which cord may easily be unwound
Inventor: MEIER JOSEF
IPC: H02G1/08
Filed: 1976-02-07
Abstract: The pneumatic device enables a cord (11) to be drawn through a wake channel (12) leading into the interior of a container (4) with a conical vase (5) supporting the cord winding (10) centred on a spindle (6). The cord emerging from the vessel is guided by channels connected to the depression into which it is required to fit. Compressed gas is applied to the system and is blown into the guide channel (13). One end of the cord is free and is pushed through by the gas acting on its surface. The gas is released by a hollow spindle actuated by a pistol grip spring loaded plunger, the pistol handle forming an integral part of the cap unit attached to the upper rim of the winding container.
Patent DE-2617518-A1 (DE)
Title: Composite metal frame section - has two surface components fitted to insulating I section by locking kink of surface component edges
Inventor: KUESTER JOCHEN
IPC: E06B3/273
Filed: 1976-04-22
Abstract: The composite metal frame section for windows or doors where the outer metal skins are combined with a heat-insulating plastic section sandwich between the two metal skins. The design consists of metal frame parts (1) and (2) with insulating part (3) between the two. The insulating part is of some plastic material, such as polyamide and acts as distancing element for the two outer metal parts. The insulating part (3) has an I-shaped cross section with the web of the I-shape extending laterally to the gap between the two metal parts. The flanges (5, 6) of the insulating part (3) have extensions (7) on their extreme edges which engage with back tapered grooves (8) on the metal parts (1 and 2). The upstanding edges (12) of the grooves rest in positioning grooves (9) on the insulating part (3). All positioning grooves are orientated in the same direction, so that all upstanding edges (12) point in opposite direction. When both metal parts are in position, the bottom flange parts (13) are bent into the corresponding recess on the insulating part (3).
Patent DE-2620012-A1 (DE)
Title: Noninflammable wood chipboard - made by impregnating chips with magnesium chloride soln., then adding magnesium oxide and epsom salts
Inventor: WILKE KLAUS-DIETHER
IPC: B28B1/52
Filed: 1976-05-06
Abstract: Noninflammable wood chipboard is made by impregnating the individual wood chips with an aq. soln. of MgCl2, with the simultaneous addn, of MgO obtd. by the caustic roasting of magnesite. Crystalline Epsom salts are then added to the mixt., followed by moulding into panels which are hardened at >100 degrees C. Prior to impregnation, the wood chips are pref. dried to 10% moisture, esp. to within 3% of the dry kiln wt. The amt. of water in the soln. is pef. below that which would saturate the chips or fibres. The ratio between MgO:dry MgCl2 is pref. >=2:1; and MgO+ CaO obtd. by roasting dolomite may be used instead of MgO. Hardening is pref. at 150-250 degrees C., using pressure, and a hardening time of 15-40 seconds pr mm panel thickness. The conventional process employs slow drying at 50-60 degrees C; the prod. corrodes the mfg. plan and tools used in machining the boards; and the conventional prod. is also hygroscopic. The invention eliminates these disadvantages, and permits a high proportion of wood chips to be used.
Patent DE-2626636-A1 (DE)
Title: Chain conveyor with detachable drive ends - ends have link connection detachable from loop chain when predetermined swivel position is exceeded
Inventor: HACKER HERMANN DIPL ING
IPC: B65G19/24
Filed: 1976-06-14
Abstract: Chain conveyor has two loop chains formed by loops having a link connection through horizontal bolts. Drivers are located between the loop chains the ends of which have a swivel link to loops of the loop chain against the direction of conveyor movement. The ends (6) of the drivers (4) have a link connection to the loops (2) transverse to the conveyor direction (12) movable towards the middle of the chain conveyor and are detachable from the loop chain when a predetermined swivel position of their ends is exceeded. The ends of the drivers are equipped with pins (6) of non-circular, pref. a rectangular cross-section.
Patent DE-2627127-A1 (DE)
Title: Fermented milk prods. e.g. yoghurt - produced on endless belt conveyor in tunnel with heating, neutral and cooling zone
Inventor: KASDORF ERNESTO GUNTHER
IPC: A23C9/12
Filed: 1976-06-16
Abstract: Milk prods. such as yoghurt, kefir and other food, produced by fermentation and, if thickeners are added, by concn. are conveyed continuously through a treatment tunnel on an endless belt. The tunnel includes a heating chamber, a neutral and partly uncovered zone, and a cooling zone. This continuous process requires less floor space for the same hourly prodn. rate than a discontinuous plant. It requires less labour and less heating power and the prodn. costs are thus lower.
Patent DE-2638131-A1 (DE)
Title: Shut=off valve with combined pipe expansion joint - has sleeve over pipe ends movable to close one pipe and partition between spaced pipe ends
Inventor: SAMOTICHA LEOPOLD
IPC: F16K31/44
Filed: 1976-08-25
Abstract: The shut-off valve in combination with pipe expansion joint comprises two axially aligned pipes whose adjacent end portions are surrounded by an axially slidable sleeve. This has a partition lying between the spaced apart ends of the pipes and supporting a conical valve member. The sleeve is slidable for the valve member to close the end of one of the pipes. Between each pipe and the adjacent part of the slide there is arranged a packing to seal the sleeve and accommodate expansion of the pipes. Each packing is tightenable by a screw ring entered into the adjacent end of the sleeve.
Patent DE-2639387-A1 (DE)
Title: Max. bit error number reduction in error chains - is performed by feedback transformation at sending side and data is transformed back at receiving end
Inventor: POSTL WOLFGANG DIPL ING
IPC: H04B14/02
Filed: 1976-09-01
Abstract: Error chains are produced during digital data transmission by pulse amplitude modulation in channels with quantised feed-back. Digital data to be transmitted are applied to a coder which converts them into pulses with m quantisation steps. Data to be transmitted are, before or together with the coding, transformed by feed-back modulo z with one single feed-back coefficient. Transmitted data are after or in connection with decoding transformed back by a forward coupling modulo z inverse to the feed-back. The number z is either z or equal to the number m of quantisation steps.
Patent DE-2646601-A1 (DE)
Title: Adjustable reclining chair with movable head part - has pivot axle and support with reinforced sprung piece near foot end of seat
Inventor: BOEHME GUENTHER
IPC: A61G7/015
Filed: 1976-10-15
Abstract: The adjustable reclining chair has a movable head part, so that it is suitable as a bed for patients. The head part is extended beyond a pivot axle into an extension which supports the seat underneath when in a horizontal position. The support is pref. positioned near a sprung piece. The support point can be adjusted in height. The sprung piece, pref. in the form of a plate spring, is fixed near the legs of the patient, and serves to take the weight of the body in the middle of the seat. The sprung piece is supported at the head end, and leads through an abutment piece near the pivot axle for the head part. The sprung piece is reinforced in the part of the seat next to the foot part.
Patent DE-2649390-A1 (DE)
Title: Combined cable duct and terminal board - in which terminals are enclosed by duct lid and form integrated unit
Inventor: HENLE BURKHARD
IPC: H01R9/26
Filed: 1976-10-29
Abstract: In order to provide protection for terminal points for appts interconnected by wiring carried in ducts, the terminal elements and cable duct are made to form an integrated unit with a common lid covering both parts. A typical application is in the wiring of control cubicles. For example the cable duct typically made of plastic, can be divided into two parallel sections (KR) with a central vertical web carrying the terminal elements (KL) in line. They may be electrically isolated by barriers (IS). Integral lids (D) joined to the duct by moulded hinges (SP) cover both duct and terminals when closed protecting both against the ingress of foreign matter.
Patent DE-2654071-A1 (DE)
Title: Microfiche reader with copier - uses reverse images for contact copies from viewing screen giving compact construction
Inventor: WALY ADNAN DR
IPC: G03B21/11
Filed: 1976-11-29
Abstract: The compact microfiche reader uses special microfiches in which each frame is followed by a reversed frame. If a copy is required then the reversed frame is projected onto the viewing screen and a photosensitive material placed over the screen. No extra mirrors etc. are required inside the machine to provide the copying image. The whole system is kept as compact as possible. The image can be lifted from the screen by a special light proof housing containing the copy material, which is processed by conventional means.
Patent DE-2704496-A1 (DE)
Title: Self righting post for road sign - has spring loaded base contacting hemispherical surface of ground anchor to provide sliding seating
Inventor: DIEDERSHAGEN BRUNO
IPC: E01F9/627
Filed: 1977-02-03
Abstract: The post is used for supporting a road sign and has a self-righting action when pushed over. It comprises a stake (14) embedded in the ground to form an anchor, its head (22) projecting above ground level and provided with a hemispherical surface. This is in contact with a similar surface formed in a bush (17) inserted into the lower end (27) of the post (18). A coil spring (19) passes axially through the bush, being held (24) and tensioned by lugs (25, 26) provided inside the post. The spring tension ensures permanent contact between the two hemispherical surfaces, these forming a sliding seating and bearing surface.