baber/WOPTO huggingface dataset:
Patent DE-4003338-A1 (DE)
Title: Rotary reciprocating piston engine - has end housing covers rigidly connected each other and able to pivot around rotor shaft
Inventor: SCHNIEDERJUERGEN-STRAETLING WO
IPC: F02B75/18
Filed: 1990-02-05
Abstract: A rotor (4) is centrally mounted in a cylindrical housing (2).  It has radial chambers (12a,12b,12c) with pistons (14a,14b,14c).  Each piston has a pin (11a,11b,11c) running parallel to the rotor shaft, and fitting into radially located guide slots in the end walls of the rotor.  The free ends of the pins fit into stellate guide grooves in the end covers (3) of the housing (2). The end covers (3) of the housing (2) are rigidly connected to each other and are able to pivot around the rotor shaft (5) by means of a lever arrangement (6). USE/ADVANTAGE - The dead centre positions on the guide track can be adjusted to eliminate engine knocking.
Patent DE-4003885-A1 (DE)
Title: Arc cutting torch - designed to avoid overheating of and oxygen leakage to current contact nozzle
Inventor: LOEFFLER HANS-JOACHIM DIPL ING
IPC: B23K9/167
Filed: 1990-02-09
Abstract: A cutting torch has a nozzle tip into which electrode wire is fed by a coaxial linear guide, equipped with a current contact nozzle, and into which oxygen is fed by a side feed line. The novelty is that (i) the nozzle tip (1) has, at its front end, a linear nozzle channel (7) connected to a coaxial guide channel (8) extending to the rear end of the nozzle tip, the guide channel having a narrower cross-section that the nozzle channel and allowing electrode wire passage with play; (ii) the contact nozzle is spaced from the rear end of the nozzle tip; and (iii) a linear oxygen feed channel (14) is provided in the nozzle tip, the oxygen channel (14) connecting with the rear end of the nozzle channel (7) at an acute angle to the guide channel (8) and extending to the rear end of the nozzle tip (1). ADVANTAGE - Overheating of and oxygen leakage to the current contact region are avoided. The current contact nozzle is integrated in the torch to provide a simple and easily handled cutting torch.
Patent DE-4004019-A1 (DE)
IPC: H01F41/04
Filed: 1990-02-09
Abstract: A magnetic coil (32) is composed of essentially annular metal sheets (2) stacked one behind the other in the direction of the axis (22) of the coil. The metal sheets (2) are each interrupted in a region of their periphery, and adjacent metal sheets (2) are conductively connected to each other in series with the same direction of current flow. The magnetic coil is characterized in that at least two of the metal sheets (2) inside the stack of metal sheets (20) are designed so that the outer radial side has a tongue (16) pointing in a first peripheral direction and the inner radial side has a tongue (17) pointing in the opposite, second peripheral direction, and that - advancing in the direction of the axis (22) of the coil - the tongues (16, 17) both on the outer radial side and on the inner radial side of the successive metal sheets (2) point alternately in the first and second peripheral directions, and that - advancing in the direction of the axis (22) of the coil - overlapping adjacent tongues (16, 17) are conductively connected to each other alternately on the outer and inner radial sides.
Patent DE-4006830-A1 (DE)
Title: Mobile air shield for electric melting furnace - has steel structure with refractory lining and space inside for electrodes
IPC: F27B3/10
Filed: 1990-03-05
Abstract: Mobile air shield device consists of a steel structure with a refractory lining (1) and with space inside for the electrodes (2), mounted on the furnace on wheels or rollers (5). The shield is supported on a continuous bridge by rollers (6), the bridge being supported on the furnace rim. The structure can be in one piece, without the supporting arrangement. ADVANTAGE - Formation of oxides above the furnace bed is limited as far as possible.
Patent DE-4006969-A1 (DE)
Title: Barrier frame for fixing equipment to shaft cover - has block actuating pivoting claws engaging in holes in cover
Inventor: HINZ KLAUS
IPC: E01F13/02
Filed: 1990-03-06
Abstract: The equipment fixes a barrier frame to a shaft cover, the latter having holes in pairs in the top surface at the ends for engagement by lifting tackle. It comprises a holder engaging in the holes and connected to a clamping mechanism engaging with the frame. The holder (4) has two claws (8) pivoting in a bracket (7), in which there is a block (12) acting on them. The block is moved by a clamping mechanism in the bracket. ADVANTAGE - Usable also with cover having a partition between the holes.
Patent DE-4010016-A1 (DE)
Title: Yarn folding machine - has simplified yarn direction guides for two-to-one folding
Inventor: STENMANS HEINZ
IPC: D01H7/86
Filed: 1990-03-29
Abstract: Two-for-one yarn folding machine has a hollow spindle. A sleeve running with the spindle provides a yarn direction device, and also supports a drag arm and guides to take yarn from the bottom package. Two yarn packages are pref. mounted on a centre on the spindle. The yarn from the top package is directed into the hollow spindle by a sleeve, which has a ceramic guide. An outer support tube provides a base on which another guide tube is fixed on to the sleeve, and this has an extended ceramic guide. Each of these parts are fixed in a relative position to each other. ADVANTAGE - There is a simplification of existing procedures.
Patent DE-4015248-A1 (DE)
Title: Mfg. coil-break-free hot rolled strip
Inventor: FREIER KLAUS DR
IPC: C22C38/14
Filed: 1990-05-09
Abstract: Coil-break-face steel strip of 2-6mm thickness with age-resistant constant yield print elongation it produced from a steel of compsn. in wt. % 0.002-0.08 C, 0.01-0.4 Si, 0.05-1.0 Mn, 0.002-0.025 P, 0.001-0.015 S, 0.015-0.08 Al, max. 0.008 N, 03-0.08 Ti  balance Fe plus usual impurities. The steel is concast and slabs heated to at least 1100 deg.C before being rolled at above the Ar3 and coiled at 550-400 deg.C.
Patent DE-4020951-A1 (DE)
Inventor: REMBOLD HELMUT DIPL ING
IPC: F16K31/02
Filed: 1990-06-30
Abstract: The proposal is for a magnetic valve to control the through-flow aperture of a connecting line (17), especially one conveying fuel, in which, in order to prevent the valve closing component (20) from chattering on returning to the closed position, it is elastically connected to a coupling member (28) on which the return force impinges, whereby the coupling member is additionally damped via a damping collar (32) on its movement which closes the valve closing component (20).
Patent DE-4024514-A1 (DE)
Title: Doctor blade for rotary printing machine - has wear reduced by soldering or welding hard material in exposed region
Inventor: KINKEL MARINA
IPC: B41F9/10
Filed: 1990-08-02
Abstract: The excess ink applied to the cylinder of a rotary printing machine is removed by a doctor blade. The hard surface of the cylinder results in increased wear of the doctor blade. To reduce this blade wear, its regions subject to wear are coated with a hard material which is applied by soldering or welding. The hardness of the material applied to the doctor blade is approx. equal to, but slightly less, than the hardness of the cylinder surface. ADVANTAGE - Improved hardness matching.
Patent DE-4026827-A1 (DE)
Inventor: HEITZE GERHARD
IPC: B30B15/02
Filed: 1990-08-24
Abstract: In an upsetting press for reducing the width of rolled material, especially the slab width in hot wide strip blooming trains with toolholders 2 arranged on both sides of the slab edge and receiving the pressing tool 1, a mounting device is proposed for the detachable mounting of the pressing tool 1 and the toolholder 2 which has at least one pretensionable tie bolt 3 with a hammer-shaped tie bolt head 5 held so that it can rotate in or on the toolholder 2, which tie bolt head engages in a recess 6 in the pressing tool 1 which is open on one side, essentially matches the tie bolt head 5 and supports this. 
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Patent DE-4029488-A1 (DE)
Title: Paper web contactless drying - uses thermal energy from recovered coolant air from infrared dryer for under side of floating dryer
Inventor: SALMINEN SIMO DIPL ING
IPC: D21F5/00
Filed: 1990-09-18
Abstract: The drying of a web of paper or cardboard, without contact, using drying zones for infra-red radiation, uses recovered thermal energy from the coolant air of the infra-red dryer wholly as heating energy for the side of the floating dryer facing the opposite side of the web to the coated wet side. The side of the dryer facing the wet coated side of the web has a channel (1) to take cold and pref. dry air as the blown carrier (1) for the dryer.  The thermal energy from the recovered coolant air from the infra-red dryer is passed wholly to the lower side (2) of the floating dryer, or the evaporation capacity is increased by about 40% by passing this thermal energy to both sides (1,2) of the floating dryer. ADVANTAGE - The productivity of the paper coating appts. is increased, without significant captical expenditure, and energy a costs are reduced.
Patent DE-4030401-A1 (DE)
Inventor: BRUECKNER HEINZ W DIPL ING
IPC: G01F23/22
Filed: 1990-09-26
Abstract: This device comprises a plurality of thermoelements as sensors on the front face of a support made of a film material, the rear face of which has an electrical heating conductor. A common connecting line as well as individual measurement lines for displaying the liquid level are arranged on the two junctions of the thermoelements. To obtain a device which is cheap and easy to manufacture, one component of the material of the thermoelements is obtained by vaporizing or imprinting on the support a material in the form of a plurality of spaced ridges. In particular, metalloids such as tellurium are used for this purpose. Both the connecting and the measurement lines are then imprinted on the front face of the support by means of a metal conductive adhesive and they cover one or other end of the individual ridges. In addition to the bonding, this produces a thermovoltage at the same time, provided that a temperature difference exists between the two ridge ends. This film pile is easy to fold and roll and can therefore be arranged compactly. When the sensors are connected in series, a measurement value voltage analogous to the liquid level is generated and applied through the two lines to an evaluation device or a computer in the vehicle, where it is converted to a measurement value by the known voltage coding process.
Patent DE-4034375-A1 (DE)
Title: Acousto=optical gas measuring device - with pollutant enrichment cell preceding measuring chamber
Inventor: BACHMANN GUIDO DIPL ING
IPC: G01N21/3504
Filed: 1990-10-29
Abstract: In a device for measuring noxious substance concn. in a gas by directing intensity-modulated (esp. IR) radiation at a gas-filled opto-acoustic measuring chamber to induce gas pressure fluctuations, a gas enrichment cell (7) is provided having one or more enrichment surfaces (12, 13) in the beam path (5) between the radiation source (1) and the measuring chamber (14) for noxious substance molecule accumulation over a certain enrichment time. The noxious substance-loaded enrichment surfaces (12, 13) reduce the intensity of radiation incident on a reference gas in the measuring chamber (14) in accordance with the noxious substance concn. and the intensity redn. is evaluated by an evaluation circuit (17). Pref. the enrichment surfaces (12, 13) are formed of a polymer (e.g. polyethylene) capable of reversible accumulation of noxious substance molecules. ADVANTAGE - The device can detect low concns. of noxious substances, e.g. halogenated hydrocarbons, and has a simple construction. ( 1/1)
Patent DE-4041264-A1 (DE)
Inventor: LESEMANN BERND
IPC: E01B7/02
Filed: 1990-12-21
Abstract: In a device for lifting the tongue-blade of a switch, with a rolling device (5) which comprises a large number of rollers, the axles of which are aligned essentially parallel to a track, and which transports the tongue-blade from a support surface in a direction transverely to the track, each roller (44, 45) of the rolling device is arranged in each case on one arm (51, 52) of a two-armed lever (41), the axle of which is aligned parallel to the axles of the rollers, the minimum stroke of the arm facing the track being designed in such a manner that the upper side of the roller arranged on this arm aligns flush with the upper side of the slide chair, while, in the horizontal position of the lever, the upper sides of the rollers arranged on it align flush with the upper sides of the remaining rollers of the rolling device, which sides lie coplanarly with a support surface arranged in a raised manner in relation to the slide chair. <IMAGE>
Patent DE-4041648-A1 (DE)
Title: Protection of hydroxy-gps. using hexa:methyl:di-silazane - by reaction in presence of cation exchanger and small amts. of water
Inventor: LEHNERT ROBERT DIPL CHEM DR RE
IPC: C07F7/18
Filed: 1990-12-22
Abstract: Prepn. of hydrocarbons contg. C-OSiMe3 units comprises reaction of aliphatic- or aromatic-bound C-OH gps. with hexamethyl disilazane in the presence of an acid catalyst (e.g. a cation exchanger), opt. with introduction of a carrier gas and with addition of moisture. The water content in the reaction mixt. over the whole reaction is 0.001-2 wt.%. The water content is pref. 0.01-0.5 wt.% and the water is added via the reagents, the catalyst or the gas. Polyoxyalkylene glycols may be silylated. USE/ADVANTAGE - The prods. are used as intermediates (protecting the OH gp.) in the organic chemical and pharmaceutical industries. The process gives good yields in short reaction times and does not require exclusion of moisture. Sepn. of prod. from catalyst is simple
Patent DE-4104174-A1 (DE)
Title: Prodn. of protein hydrolysate from waste hides - by heating with calcium hydroxide in aq. slurry, oxidising sulphide ions with hydrogen peroxide, and adding sodium carbonate to ppte.
Inventor: PISKE HAGEN DR RER NAT
IPC: A23J1/10
Filed: 1991-02-12
Abstract: In an protein hydrolysate from waste hides from the leather industry, the raw material is pieces or fragments of unhaired hides and/or machine leather scraps for making glue. These are treated with Ca(OH)2 in an aq. slurry for 2-7hrs (3-5hrs) at 85-120 (95-105) deg.C; sulphide ions in the liq., freed from undissolved matter, are oxidised with H2O2, and the liq. is freed from Ca ions by addn. of Na2CO3. USE/ADVANTAGE - The prod. can be used as a textile aid, or as an intermediate for cosmetics. The prod. is free from toxic by-prods., esp. Cr cpds. The process is cheaper than enzymatic hydrolysis. The filter-cake can be used in manuring or composting. In an example, a mixt. of 500 ml of water, 500 g of ox hide and Ca(OH)2 was refluxed for 4 hrs, followed by filtration. The filtrate was treated with 10 ml of 30% H2O2 and boiled for 10 mins., followed by addn. of 20 g of Na2CO3 to ppte the Ca ions. The filtrate was conc. to density of 1.22 g/ml, giving 207 g of a soln. with a slight odour, iodine value 36, and Gardner colour 8-9. The degree of degradation was 27%%%
Patent DE-4112560-A1 (DE)
Title: Protective valve unit for air brake system of goods vehicle - makes use of top-up chambers working with overflow valves
Inventor: SIEBOLD MANFRED
IPC: B60T11/32
Filed: 1991-04-17
Abstract: The multicircuit protective valve arrangement is for the compressed air braking system of a vehicle having at least two braking circuits (I, II) with two overflow valves (18, 19) lying one behind the other. A top up-chamber (V1, V2) is provided between each of the overflow valves and the chambers are so arranged that the first overflow valve opens more quickly, allowing circuits (I, II) to be supplied before the other circuits (III, IV). The two overflow valves can be integrated to form a single unit. USE/ADVANTAGE - Braking circuit for a goods vehicle in which the closure members of the overflow valves are not subject to distortion during operation.
Patent DE-4114257-A1 (DE)
Title: fabric laying and cutting appts. with adjustable rollers - allows web to be cut directly below gripper surfaces of guides jointed to bearing plate
Inventor: SEIDEL WOLFGANG DIPL ING
IPC: B65H45/101
Filed: 1991-05-02
Abstract: The web is propelled by synchronously driven parallel feed rollers (18, 19) set horizontally above adjustable guides (20, 21). The cutter (40) is longitudinally adjustable in one guide (20) has a blade (43) rotating in a horizontal plane in co-operating with a circular blade (45). The rollers (18, 19) are hollow to accommodate motors driven at adjustable speeds under electronic control. The web is gripped between vertical portions (20.2, 21.2) of the guides (20, 21) which are jointed (30, 31) to a bearing plate (17) of the housing (13). ADVANTAGE - Simple and compact appts. affords many functions including all current modes of folding, tensioning, calendering and cutting.
Patent DE-4120791-A1 (DE)
Title: Equipment for plasma powder spraying of metallic components - by conversion of plasma cutting unit with modified powder spray nozzle with plasma gas nozzle, nozzle cap, powder guide cap and inert gas cap
Inventor: BECKER REINHARD
IPC: B23K10/02
Filed: 1991-06-24
Abstract: Equipment for plasma powder spraying of metallic components by conversion of a plasma cutting unit with removal of the original cutting nozzle and cap and substitution of a powder spray nozzle having a shorter plasma gas constriction nozzle (5) with enlarged outlet bore and similar internal profile in a nozzle cap (6) with modified external profile, connectable to the burner body with the appropriate cathode-anode gap. Equal-spaced powder channels (9) are formed in the outer surface of the lower truncated conical part of the replacement nozzle cap (6), running out close to the nozzle cap bore (14) level with the outlet of plasma gas nozzle (5). A powder guide cap (2) fits closely over the conical surface of the nozzle cap (6), sealing the powder channels (9) and forming a communicating annular powder distribution gap at the upper cylindrical part. An inert gas cap (3) is attached over powder guide cap (2) by a threaded connection, with the opposite conical surfaces of equal angle forming an annulus for the inert gas shield. USE/ADVANTAGE - Provides a means of converting commercial plasma cutting equipment for plasma powder spraying without extension of the existing cooling system and which can be operated with or without a pilot arc.
Patent DE-4122254-A1 (DE)
Title: Simple mechanical press for crushing cans - has ram and platform surfaces inclined so that after two strokes crushed can slides through gap under end stop
Inventor: JIRKU HEINZ
IPC: B30B9/32
Filed: 1991-07-05
Abstract: The can to be crushed lies on a V-section platform (4) which is inclined so that the can slides to rest with one end against a vertical stop plate (12). The stop plate has a V-shaped bottom edge corresponding to the section of platform (4) and is positioned from the platform at a distance allowing the crushed can to slide through. A ram (11) of V-section and inclination corresponding to that of platform (4) is guided on column (3) and can be forced down against the platform by actuation of a spring-loaded linkage and hand lever (6,17,18). The can is placed with its open end against the stop plate and crushed with a first stroke of the ram. The second stroke crushes the closed end of the can, which can then slide through into a bin when the ram lifts. ADVANTAGE - Low cost. Simple and safe to use.
Patent DE-4124621-A1 (DE)
Title: Immobilising contaminants, esp. heavy metals, in effluent gases, liq(s). and solids - by converting harmful substances into highly insoluble complex cpds. with jarosite type structure
Inventor: GEBHARD GEORG DR
IPC: A62D101/43
Filed: 1991-07-25
Abstract: Process for purification of gases, liqs. and solids laden with harmful substances, by converting the harmful substances into water-insoluble cpds. having structures of the type AB3X2(OH)6 (I). In (I) position A is pref. occupied by H3O, NH4, Na, Mg, K, Ca, Mn, Rb, Sr, Ag, Cd, Cs, Ba, La, Ce, Nd, Au, Hg, Tl, Pb, Pb, Bi, or Th; position B is pref. occupied by Al, Ti, Fe, Co, Ni, Cu, Zn or Ga; and position X is occupied by PO4, SO4, AsO4, SeO4, CrO4, SiO4, CO3, SeO3 or BO3. The OH gps. in (I) may be partially replaced by H2O, F or Cl. USE/ADVANTAGE - The process allows harmful heavy metals present in effluent gases, liqs. and solids to be converted into complex water-free sulphates with a trigonal symmetry of formula (I), in which positions A and B are occupied by heavy metals and position X is occupied by a heavy metal in the form of a cation such as AsO4, CrO4 or SeO4. The (I) are insoluble prods. with an extremely small solubility prod. The process is esp. effective for removal of Hg, Pb and other heavy metals from industrial effluent gases, effluent water, plating baths, flue gas, waste prods., residues from burning of refuse, et
Patent DE-4124855-A1 (DE)
Title: Pin disc grinding mill with two rotors - has each rotor made from two parallel plates attached to common hub
Inventor: GOERLITZ FRANK-OTTO DIPL ING
IPC: B02C13/288
Filed: 1991-07-26
Abstract: The pin disc grinding mill has two rotors (3, 4) which rotate in opposite directions inside a housing (2). Each rotor is mounted on a shaft (10) and consists of two circular plates (13, 14) and (15, 16) which are attached to hubs (11, 12). The two shafts (10) are in line with each other. Each rotor has rings of pins (5) which project axially and which pass through one of the plates (14, 15) and are fixed to the other plates (13, 16). The rings of pins are so arranged that the rings of one rotor are positioned between adjacent rings of the other rotor. USE/ADVANTAGE - Grinding mill. Making the rotors from two plates reduces the motor weight.
Patent DE-4138984-A1 (DE)
Title: Sheet conveyor for sheet feeders in painting machines - has guide elements which restrict transport plane of sheets by injection action and has air box with curved guide plate at outlet
Inventor: ZIMMERMANN HANS
IPC: B65H3/08
Filed: 1991-11-27
Abstract: The guide elements (11, 12) are situated between the separating vacuum (4) and the back stop position (16) of the transporter vacuum (5). These restrict the transport plane of the sheets at the top exert an injection action on the sheets. The guide elements consist of a guide plate (12) with recesses and associated air box on the side remote from the sheets. The outlet opening of the air box has a curved guide plate. The air box and guide plate are connected airtight on three sides. ADVANTAGE - Improved output with reduced wear by reducing the periodically moved masses of the sheet divider of a sheet feeder.
Patent DE-4139074-A1 (DE)
Title: Algae and moss control agent - contains alkyl:amino:phosphonic acid ester, and has toxic and ecological advantages over known agents
Inventor: LUTHARDT HORST DR
IPC: A01N57/20
Filed: 1991-11-28
Abstract: Agents for the control of algae and moss contain an alkylaminophosphonic acid ester (I) or salt and conventional adjuvants and carriers. In (I), R1 is 1-4C alkyl; and R2 = 1-4(6)C alkyl. (I) is pref. 1-butylamino-cyclohexanephosphonic acid di-n-butyl ester (butinafos), 1-methylamino-cyclohexanephosphonic acid dihexyl ester or their hydrochloride. USE/ADVANTAGE - (I) are herbicides. In contrast to known products such as benzalkonium chloride, diuron, amitrole, polyquat, and MCPA, (I) have low mammalian toxicity and are readiyl degraded without leaving toxic residues in soil. Thus, seeding or planting can be carried out immediately after the agents have been used.