baber/WOPTO huggingface dataset:
Patent DE-2457702-A1 (DE)
Title: Feeder for elastic threads to circular knitting machines, etc. - magnetic foot plate positions feed roller wherever required
Inventor: MUELLER GERHARD
IPC: D04B15/48
Filed: 1974-12-06
Abstract: A thread guide for feeding elastic yarn to the needles of a knitting machine, has a roller carried by a bracket in the footplate of which there is a magnetic component which it can be attached to the machine. Permits completely unrestricted access to the needles. Leaves the selection of the angle of feed completely open.
Patent DE-2505139-A1 (DE)
Title: Base plate for fixing clothing fasteners - forms claws of fastener base into hook to fix inside base plate (SW140676)
Inventor: KRAMER FRIEDHELM
IPC: A44B1/28
Filed: 1975-02-07
Abstract: This one piece base plate for fixing fasteners to material is dished round the edges so that when the claws of the fastener are forced in the claws are bent into a hook which is held under the flap (11) thus holding the fastener in place. The base can be domed inwards so that claws which pass through the opening in the flap (11) are hooked outwards. Both methods producing a secure base for the fastener. Preferably the stabilising surface (1) and/or the side walls a flange including construction.
Patent DE-2509501-A1 (DE)
Title: Buffer amplifier has broad temp stability - achieved by chopping input signal with variable duty factor through to averager
Inventor: KAPFER KARL
IPC: H03F3/38
Filed: 1975-03-05
Abstract: The buffer amplifier, or decoupling circuit with arbitrary gain, has its input information (as current or voltage) transferred by an isolating circuit in the form of an alternating signal having a variable duty factor. The average value of this alternating signal is proportional to the input voltage. A master/slave flip-flop is used to control the switch that gates the input signal through to an operational amplifier which is provided with an RC time circuit whose output is compared with a reference and is used to clear the MS flip-flop. The advantage of this arrangement lies in its functioning accurately over a wide temperature range and using few components.
Patent DE-2514440-A1 (DE)
Title: Solar energy conserving glass building block walls - have different crystal forming salt soln fillings and air cushion behind glass panels
Inventor: MARCUS JOACHIM
IPC: E04B1/76
Filed: 1975-04-02
Abstract: The walls comprising glass building-blocks are designed for solar energy conservation, the purpose being to improve heat insulation, to reduce heat loss in winter as well as to improve delivery facilities and thus reduce costs. The glass building-blocks can be filled with different crystal-forming salt solutions. Glass panels can be set in front of the walls, so as to produce air intervals between them and the glass building-blocks. The glass panels may be provided with optically effective coatings. The air intervals may be comprised in channels parallel to the wall, for ventilation purposes. Calcium chloride and magnesium salts are suitable fillings. Roofs can be made of similar construction.
Patent DE-2515193-A1 (DE)
Title: Trench cutting tool on excavator arm - is pivoted about two perpendicular axes for improving manoeuvrability
Inventor: NUESSING ALOIS
IPC: E02F3/96
Filed: 1975-04-08
Abstract: The trench cutting tool used as an accessory on an excavator, is held in front of the excavator on an articulated arm so that the tool can be rotated about a vertical plane. The manoeuvrability of the trench cutter is improved so that it can excavate trenches parallel to the excavator track with continuous feed and with an angle of attach which can be adjusted in the working plane. The trench cutter (10) has an endless cutting chain driven over two pulleys. The cutter upper end has a first pivoting joint (11, 12, 13) for rotating the cutter about an axis in a vertical rotating plane of the excavator articulated arm. A second pivoting joint (19, 20, 21, 22) rotating the cutter in vertical plane. The cutter is also clamped by the pivoting joint features. Both these joints are held between the holding plate (8) of the articulated arm (3) and the cutter (10).
Patent DE-2521675-A1 (DE)
Title: Assembly method for picture frames and similar objects - uses Z sections members retained by corner clamps
Inventor: SCHMILK GEORG ING
IPC: F16B12/50
Filed: 1975-05-15
Abstract: The frame members are of Z cross-section with the outer end of each flange bent at right angles towards the opposite flange. The retaining clamps have an L-shaped member with ratchet teeth formed on its outer surfaces. Sliding members fit over the inward facing flanges of the Z section and are slid towards the mitred joint until they are firmly wedged on the L-section and prevented from slipping back by ratched teeth. The clamps are fitted to the reverse side of the frame end and are not visible from the picture side. Clamping screws or leaf springs may be used instead of ratchet teeth.
Patent DE-2522647-A1 (DE)
Title: Rope end releaseble coupling esp in ski retention - has pear shaped coupling member of elastic flexible plastic wire with metal clamp to hold ends together
Inventor: JUTZI FRIEDRICH DR
IPC: A63C9/00
Filed: 1975-05-22
Abstract: A releasable coupling for two rope ends, partic. for ski retention ropes, has a slender, pear shaped coupling member (2) made from strong smooth, rigid but elastically flexible plastic wire such as 'Perlon' (RTM) inserted into the punched out longitudinal hole in the metal section of the rope attachement. Both wire ends are held in contact with each other by means of a metal clamp which is of greater width than the longitudinal hole (31). The upper free pear shaped section has a width exceeding that of the hole (31) and can be hand compressed to pass through the hole allowing it to be pulled down without any further compression.
Patent DE-2524450-A1 (DE)
Title: Oil filter for internal combustion engines - has a disposable element consisting of a roll of paper
Inventor: STILWELL JAMES H
IPC: B01D35/18
Filed: 1975-06-03
Abstract: An oil filter having an interchangeable filter element in the form of a roll of paper on a central tube has a hollow housing with external cooling fins and one closed end with an internal hollow screwed boss and a second open end through which the filter element is inserted. The open end of the housing is closed by a cover plate having inlet openings and a central outlet opening for the oil, from which a pipe extends co-axially through the housing inside the core tube of paper roll and is screwed onto the boss inside the closed end. The oil normally enters through inlets in the cover and flows through the body of paper roll to its opposite flat end, from whence it enters the central pipe via slots in boss. The oil then flows to the outlet. When the oil press. at the inlet end exceeds a predetermined value, a spring loaded collar inside and at the outlet end of the pipe acting as a valve which is lifted by the oil press. to expose opening in the lower end of the pipe which enable the oil to by-pass the filter in the event of blockage. A further valve surface is provided to operate in conjunction with the sliding collar to prevent oil by-passing the roll when the valve collar is in the closed position. The spring prevents vibration of the collar and its opposite end. The filter can be fitted to existing engines without modification. Particles of paper from the element cannot pass into the filtered oil stream and the filter maintains its efficiency throughout its working life. The filter roll is progressively compressed by the tapered housing and thus gives progressive filtration. The filter is cheap to produce and can be quickly and easily serviced.
Patent DE-2524628-A1 (DE)
Title: Meat pickling machine conveyor - with endless chains joined by crossbars and fitted with serrated links
Inventor: HUEBNER MAX
IPC: A23B4/28
Filed: 1975-06-03
Abstract: A conveyor system for meat in a brine injection machine consists of endless chains with cross bars, supported by a sliding plate under the top strand. Both the two chains and the cross bars are fitted with links with serrations along the top which form a grip on the meat and move it towards the brine injection needles. This requires much smaller return pulleys than the conventional endless steel belts with welded channels. The new conveyor is much easier to keep clean and is cheaper to mfre.
Patent DE-2527214-A1 (DE)
Title: Hygienic protective cover for lavatory seat - has folded edges arranged around central hole to prevent direct contact with seat
Inventor: BATTI VITTORIO
IPC: A47K13/16
Filed: 1975-06-16
Abstract: The hygienic protective cover (1) for a lavatory seat (2) is made of paper provided with a paraffin coating to make it waterproof. The cover is roughly oval in shape and a small area (4) at one end is covered with silicon paper to make it stick to the lavatory seat. A hole of roughly rectangular shape is cut in the centre of the cover and the edges (5, 6, 7) are folded inwards in order to ensure that no part of the user's anatomy comes into contact with the lavatory seat (2). This hygienic protective cover is particularly suitable for use in public lavatories.
Patent DE-2545243-A1 (DE)
Title: Light stable titanium dioxide pigments - by doping with ions of copper, vanadium, manganese, niobium, tantalum, molybdenum, tungsten, antimony
Inventor: HAUFFE KARL PROF DIPL ING DR
IPC: C09C1/36
Filed: 1975-10-09
Abstract: Method comprises treating the TiO2, which may be calcined, with a cpd. contg. ions chosen from Cu, Mn, V, Nb, Ta, Mo, W, Sb in an amt. corresp. to 10-4 - 2.5 atom %, tempering the treated TiO2 at 500-1100 degrees C for 10-0.1 hr., if necessary adding Cu, Mn and/or V ions, and drying the prod. Titanium dioxide is used as a white pigment esp. in paints and also for delustering syntethic fibres. Such paints used out of doors are affected by the weather and u.v. light and a chalking effect resulting from the action of atomic oxygen (from the TiO2) as the paint binder ensues.
Patent DE-2551768-A1 (DE)
Title: Press tools and dies made from superplastic alloys - where alloys are hot-shaped using compressed air
Inventor: HOLDSWORTH ARTHUR WILLIAM
IPC: B21D26/055
Filed: 1975-11-18
Abstract: A pressing die, compression mould or a press tool, are produced from a plate made of a superplastic alloy, by a process in which (1) the plate is located opposite a die-surface; (2) suction is employed to evacuate the air out of the cavity between the die-surface and the plate; (3) the plate is heated so that at least its surface becomes plastic; (4) the plate and the die surface are brought into close contact so the surface of the plate matches the die-surface; (5) the moulded plate is removed from the die surface. Air pressure is pref. used to force the plate against the die surface, and a flexible diaphragm may be used in the die assembly. Used for example, in the process given in GB 1168273, for the mfr. of embossed thermoplastic plates, or for other press tools used for processing plastics.
Patent DE-2552157-A1 (DE)
Title: Machine for prodn. of building elements - from ligno-cellulosic particulate material and hydraulic binder, pref. cement
IPC: B28B13/02
Filed: 1975-11-20
Abstract: Machine for prodn. of elements such as plates, ledges, posts etc. from lignocellulose-contg. particles and a hydraulic binder (pref. cement) comprises a feeding bunker supplying measured quantities of the starting materials onto a first endless conveyor. The materials then drop onto a second endless conveyor, which alternatingly moves in the direction of pref. 2 moulds, so that one of them is being filled, whilst the complete filling of the second mould is compressed by a stamp. The two endless conveyors can horizontally rotate around a vertical shaft to feed more presses disposed star-like around the vertical axis. This machine is simpler and has higher productivity than known machines. It can be operated practically continuously. The particle distribution and, hence, the internal structure of the prod. is uniform.
Patent DE-2552243-A1 (DE)
Title: Mfr. of narrow, flexible felt tubes, esp. for artificial veins - by pressure of rotating rollers on a stationary, slightly tapering mandrel
Inventor: DILO RICHARD
IPC: A61F2/06
Filed: 1975-11-21
Abstract: Fibrous material is fed tangentially to a stationary mandrel which tapers by 1 1/2-2% along its length. Rubber-covered cylindrical rollers alongside the mandrel press the material down and set the mascent tube into rotation. Beyond these rollers, the mandrel assumes a constant diameter, that of the finished tube. Shortly before this part is reached, there is a bulge in the tapering mandrel, and here the felt is compacted against the cylindrical rollers. The bulge also carries a screw thread of saw-tooth profile, which urges the almost-finished tube forwards, towards the mandrel's constant-dia. termination. Known methods are limited to making tubes of >=40mm. dia. with walls >=4 mm. thick. The invention is directed towards tubes down to 4-5 mm. dia.
Patent DE-2552418-A1 (DE)
Title: Continuous casting guide roll - with individual rollers on stationary shaft supplied with coolant through axial and radial bores
Inventor: WITT JOACHIM DIPL ING
IPC: B22D11/128
Filed: 1975-11-22
Abstract: A guide roll for continuous casting plant consists of several individual rollers with anti-friction bearings on a common stationary shaft. A coolant is passed to each roller through an axial bore and a radial bore, terminating inside a shaft seal at one end. After passing axially through the bearings, the coolant leaves through another radial and axial bore. this is more effective than the conventional spray cooling. Damage to the bearings, damage to the strand and downtimes are reduced to a minimum.
Patent DE-2556165-A1 (DE)
Title: Valve for pressure gas packing - has seal dimensioned to maximise charging cross section in clamping region
Inventor: ZIMMERHACKEL FRANZ
IPC: B65D83/14
Filed: 1975-12-13
Abstract: The valve for pressure gas packing has a sealing disc whose dimensions are chosen so that a sufficiently large charging cross-section can be attained. To achieve this the external dia. (D8) of the essentially circular disc (8) amounts at most to 116% of the external diameter (D7) of the clamping border (7). The disc dia. 112% of that of the clamping border. The external disc dia. lies between 8 and 20mm and its thickness between 1 and 2 mm. The disc is made from a material exhibiting a Shore hardness of at least 70.
Patent DE-2556176-A1 (DE)
Title: Piston for trochoidal rotary small piston engines - with timing teeth cut into piston material to simplify cooling design
Inventor: WEEBER HERMANN ING GRAD
IPC: F01C21/08
Filed: 1975-12-13
Abstract: The piston for trochoidal rotary piston IC engines is intended for small engines, with internal cooling by means of the entering gas mixture. The piston of conventional design has an internally toothed timing ring in the bore of one end face. However, to avoid the deformation and high stress problems which arise in engines such as this from shrunk-in timing rings, or the complexity on the other hand of flexible connections or protective coatings, the ring is eliminated by cutting the teeth into the piston material. A material must be used which is equally suitable for the functions of a rotary piston and of gearing, such as spheroidal graphitic cast iron - pref. GGG 60 or GGG70.
Patent DE-2607143-A1 (DE)
Title: Rotary machine tool blade head clamping device - is behind cutting unit and has barrel shaped outline and projecting finger
Inventor: HERTEL GUENTHER
IPC: B23C5/22
Filed: 1976-02-21
Abstract: Clamping device for the blade head of a rotary machine tool, in which the clamping device (9) is a part (12) in a tool holder (1) rotatably located around a vertical rotary axis (11) to the direction of clamping. It is activated by tension means tangentially to its rotary axis, and has a clamping finger (13) projecting radially in the direction of the cutting body (2). The clamping part (12) is arranged in the direction (14) of the rotating tool axis behind the recess for location of the cutting component (2). It has an outline form of a cylinder, which can be barrel-like in appearance with a convex vaulted outer surface.
Patent DE-2610191-A1 (DE)
Title: Insect trap with lure light - has catcher part which is coated with adhesive and is in form of transparent flat plate
Inventor: GRUBE MARTIN
IPC: A01M1/14
Filed: 1976-03-11
Abstract: The capture device uses adhesive for flying insects where the part of the catcher with the adhesive can be illuminated. The catcher part with adhesive is in the form of a transparent, flat plate which sits in an opaque holder and whose one edge can be lit up by a lamp which sits in the same holder. The transparent plate which serves as the catcher is roughened up on the surface which carries the adhesive. Further, the part which carries the adhesive can be replaced. It can be fixed in the holder with a movable holding device and is not totally covered with adhesive. The part which is free of adhesive is opaque. Alternatively the catcher can be in the form of a transparent cylinder, illuminated by a lamp in its inside.
Patent DE-2618501-A1 (DE)
Title: Citric acid prepn. by fermentation - using Aspergillus niger R-1 strain on nutrient medium contg. molasses
Inventor: RUMBA ALMA ALBERTOVNA
IPC: C12N15/00
Filed: 1976-04-27
Abstract: Citric acid is prepd. by growing a new Aspergillus niger R-1 strain, (I), on a nutrient medium contg. sources for C, N and mineral salts, followed by mycelium sepn. and extn. of end-prod. from culture liquor. (I) is produced by combining activity of UV-radiation, ethylene imine and N-nitrosomethyl urea on Aspergillus niger EU-119 (II). Citric acid is used esp. in pharmaceutical and food industry. (i) Cultivation of (I) in place of (II) increases citric acid yield from 88-89wt.% to 99wt.%, w.r.t. sugar consumed, and, on molasses media, citric acid formation is increased from 93-94% to 97-98%, w.r.t. acid sum. (ii) (I) resists antagonistic bacteria, inhibits formation of gas-, acid- and nitrite-forming bacteria in fermentation process and ferments molasses well. (iii) (I) is less sensitive to chemical compsn. of starting molasses, and allows use of a lower quality molasses.
Patent DE-2622197-A1 (DE)
Title: Oxidising calcium sulphide formed in waste gas purificn. - comprises introducing air-oxygen mixt. into scrubber
Inventor: HOELTER HEINZ
IPC: C01F11/46
Filed: 1976-05-19
Abstract: This addition relates to the cleaning of waste gases contg. SO2 in which Ca-S cpds., which are formed, are oxidised by air to CaSO4. An improvement is obtd. by providing the air-oxygen, which is required for the oxidn. of Ca bisulphide, in the region of the washer, pref. in the acid water of the scrubber. The air-oxygen is introduced into the scrubber by the suction fan and/or into the outlet pipe system of the wash liquid and oxidation is effected by means of compressed air and/or conc. oxygen.
Patent DE-2624197-A1 (DE)
Title: Phthalaldehydic acid prodn. by hydrolysis of diphthalidyl ether - using (in)organic acid catalyst at high temp., for high yield and purity
Inventor: STEFFEN KLAUS-DIETER DIPL CHEM
IPC: C07D307/89
Filed: 1976-05-29
Abstract: Prodn. of phthalaldehydic acid (I) involves the hydrolysis of diphthalidyl ether (II) with water in the presence of a catalytic amt. of inorganic and/or organic acids (III) is soln. at elevated temp. In an example, (II) was heated 4 hr at 125 degrees C in 1% HCl soln., giving a 96.4% yield of (I), m.pt. 97-1000 degrees C which was 98.8% pure. If 10% NaOH was used for hydrolysis, the yield was only 97.6%. (I) is a valuable intermediate for the prodn. of many important pharmaceutical prods., e.g. phthaloazones produced by reaction with hydrazine or its derivs. (II) which is formed by dehydration of (I) and is obtd. in more or less large amts. as an undesirable by-prod. in (I) mfr., is converted easily in a few hours to (I) in high yields and good purity.
Patent DE-2628226-A1 (DE)
Title: Automatic cheese manufacture control - by measuring densities of high fat and no fat components and mixing to suit
Inventor: SCHWEER GEB KIRCHHOFF INGEBORG
IPC: A01J11/10
Filed: 1976-06-23
Abstract: In a system for the mfr. of standardised cream for the cheese prodn. with a given ratio of fat content of dry substance, a high-fat milk component is mixed in a certain proportion with a no-fat component. The density of th emixt. is determined; depending on the ratio of the difference of the densities of the no-fat component and of the mixt. to the difference of the densities of the high-fat component and the mixt. reduced by the density of distilled water, the amt. of the no-fat component added to the high-fat milk component is controlled. Cheese can be produced simply an inexpensively from two milk components of different fat content without any necessity for intermediate storage in tanks with cooling and mixing facilities. Process results in precise fat contents in the cheese and a precise ratio of fat content to dry substance. Readjustments require no downtimes.
Patent DE-2628848-A1 (DE)
Title: Alloy steel with high nitrogen content - produced by adding a mixture of deoxidising agent and silicon nitride during electroslag remelting
Inventor: JACHOWSKI JOHANNES
IPC: C22B9/18
Filed: 1976-06-26
Abstract: The N content of high alloy steel is increased during electroslag remelting at atmos. press. by the addn. of a mixt. of a strong deoxidising agent and a high N contg. non-metal nitride of which the non-metal element has no adverse effect on the properties of the high alloy steel, the deoxidising agent being present in an amt. of 0.1-0.8 wt.%, and N in the nitride 0.1-0.8 wt.% referred to the quantity of remelt steel. Method does not require the use of high pressure appts. for introducing the N, and allows the use of stationary or glide moulds. Melting proceeds undisturbed.
Patent DE-2629588-A1 (DE)
Title: Charging and tipping device for bakery oven - has rollers on height adjustable arm and swivel strut attached to frame
Inventor: KILIAN THEO
IPC: A21B3/07
Filed: 1976-07-01
Abstract: Charging and tipping device for a bakery over batch of rolls etc. has a framework which has a width the same as that of the oven and to which a pair of rollers are fastened. The rolls are positioned at the same height as the leaching edge of the lowest hearth which protrudes approx. half the length of the tip tray for the rolls. The rollers are secured to a height adjustable extension arm, and on the other side of the oven side of the frame on a swivel strut upwards in a working position, is a swivel which turns around the longitudinal axis of the frame Spaced gripping plates are provided for the tip tray and/or over charging device. Handling is multi-level ovens is facilitated.
Patent DE-2640014-A1 (DE)
Title: Protective layer for X=ray fluorescent screen - formed from lacquer contg. cellulose aceto-butyrate and methyl methacrylate!
Inventor: DEGENHARDT HEINZ DR RER NAT
IPC: G21K4/00
Filed: 1976-09-06
Abstract: A protective layer for an X-ray screen with a fluorescent layer consists of a mixt. of 50-80 (60) wt.% cellulose acetobutyrate and 20-50 (40) wt.% methyl methacrylate. The protective layer dries rapidly and bonds firmly to the fluorescent layer; it resists tropical conditions and is hard but flexible. The layer is thin, is not >15 mu, and does not affect the image sharpness on the screen. Specifically, the mixt. of cellulose ester and methacrylate is applied as a soln. The soln. esp. contains 150g of the mixt. and (i) 600 ml methyl glycol, 300 ml ethyl glycol and 100 ml butyl acetate, or (ii) 800 ml methyl glycol acetate and 200 ml methyl glycol. This lacquer is applied to a fluorescent screen consisting of a carrier, e.g. of polyester, and a fluorescent layer contg. La oxybromide as fluorescent agent and polyvinyl acetate or an acrylic resin as binder. Alternatively, the lacquer is applied to an intermediate carrier, and covered first with the fluorescent layer and then with the carrier film, followed by sepn. of the screen from the intermediate carrier.