baber/WOPTO huggingface dataset:
Patent DE-2550033-A1 (DE)
Title: Crosslinked cellulose ethers having high water retention capacity - prepd. using crosslinking agents contg. substd. acrylamide gps.
Inventor: HOLST ARNO DR
IPC: C08B15/10
Filed: 1975-11-07
Abstract: Water-absorbing cellulose ethers, (A), are produced by alkalising cellulose in a liq. reaction medium and reacting with etherifying agent to form a water-soluble carboxymethyl-, carboxymethyl-hydroxyethyl-, hydroxyethyl- or methyl- hydroxyethyl cellulose. A crosslinking reaction is carried out, before, during or after etherification, using a crosslinking agent which is polyfunctional w.r.t. cellulose in alkaline reaction medium. Novelty comprises using a crosslinking agent contg., as functional gp. w.r.t. cellulose, >=1 substd. acrylamide gp. having formula R1CH=CH2-CO-N (I) (where R1=Me and R2=H, R1=H and R2=Me). (A) can be used as bandages, catamenial napkins or as dehydrating agents, e.g. in aq. emulsions. Water absorbent is so strongly anchored to crosslinked prod. that it is hardly removed on applying a centrifugal force of 2000 G. In an example, crosslinked CMC was prep. having water retention capacity 5600 % and contg. 51.5% water-in-soluble portion.
Patent DE-2553456-A1 (DE)
Title: Paper packaging machine for spaghetti - has carton wrapped around product by spring assisted compression arms in U-formation
Inventor: GAUKLER FRITZ DIPL ING
IPC: B65B19/34
Filed: 1975-11-28
Abstract: The spaghetti-packaging process is carried out on a chain-conveyor (3), with a series of open-top containers (5) carried along by the links. Each container has a movable back wall (12) meshing with the floor (11), fastened to the chain via blocks (13, 14) and guide rods (15, 16) running in grooves (17). At the opposite side from the rear wall (12) is a yoke (18), attached by lugs (19) to a spring (20). This spring prevents the opposite walls from being pulled apart completely by extension of the guide rods (15, 16). The limit is set by the yoke (18) contacting the blocks (13, 14). Extension and release of the sprung back walls (12) is produced by the guide slope (28) which allows the flexible foil or paper wrapper edges (8) to overlap on contraction.
Patent DE-2555004-A1 (DE)
Title: Helium:neon laser tube - has capillary tube coaxially held in cylinders on both sides of gas discharge aperture
IPC: H01S3/032
Filed: 1975-12-06
Abstract: The helium-neon laser tube has the capillary tube held coaxially near the gas discharge tube aperture by two cylinders. The cylinders form a case which contains the cathode. The long rear end can be bent about the fusing zone with the inner cylinder. The mirror at the capillary tube back end can move on a spherical surface, and thus be brought to a position parallel to the mirror at the capillary front end. The back end of the capillary tube has a fitting for fastening to the hollow cylinder case.
Patent DE-2557951-A1 (DE)
Title: Electromagnetic double contact relay - is for telephony crosspoint switch and has two magnet armatures in U-shaped yoke
Inventor: KLOR WALTER DIPL ING
IPC: H01H51/22
Filed: 1975-12-22
Abstract: The electromagnetic double-contact relay consists of a U-shaped yoke (5) with an excitation winding and two freely-moving armatures inside contact arrangements between the arms of the yoke. To make the arrangement as in 2557901 suitable for use as a crosspoint switch in telephone switching matrices, two insulating plates are positioned over one another each side of each freely-moving armature and a gap is left between the two pairs of plate assemblies. The two armatures are permanently magnetic either in the same sense or in opposite senses.
Patent DE-2600026-A1 (DE)
Inventor: HEETMAN JACOBUS G A
IPC: B32B7/02
Filed: 1976-01-02
Abstract: The first layer (1) of the panel, which first layer (1) is covered by a second layer (2), has a density of 200-600 kg/m<3> and the cover layer has a density of 700-1200 kg/m<3>. In the production of such a panel, the grains of the first layer (1) are glued using a binder containing no curing agent, after which the grains are scattered predried into a press mould. The grains of the cover layer (2) are glued using conventional binders. The curing agent necessary for curing the binder of the grains of the first layer (1) is supplied to the first layer from the cover layer (2) only during the hot pressing of the aforementioned layers. Panels produced in this manner can achieve a high flexural strength. <IMAGE>
Patent DE-2600880-A1 (DE)
Title: Broad-spectrum cephalosporin antibiotics resistant to beta-lactamase - 7-(alpha-(4pethyl-2,3-dioxo-piperazinocarbonylamino)-para-hydroxy- phenylacetamido)-ceph-3-em-4-carboxylic acids
Inventor: SAIKAWA ISAMU
IPC: A61K31/545
Filed: 1976-01-12
Abstract: Cephalosporins of formula (I): (where R1 = H, a cation or a blocking group and R2 = acetoxy (cpd. C) carbamyloxy (cpd. D), 5-methyl-1,3,4-thiazol-2-ylthio (cpd. B) or 1-methyl-1,2,3,4-tetrazol-5-ylthio (cpd. A)), are broad spectrum antibiotics effective against Gram-positive and Gram-negative bacteria (partic. Pseudomonas aeruginosa, Klebsiella pneumoniae and Proteus species) and stable to bacterial beta-lactamase. The cpds. have low toxicity, are well absorbed to give high blood levels and do not show hemolytic activity.
Patent DE-2604378-A1 (DE)
Title: Mounting bolt securing device for masonry - has elastic lip on sleeve washer bearing against hole walls
Inventor: FISCHER ARTUR
IPC: E04B1/41
Filed: 1976-02-05
Abstract: The device secures a mounting bolt in a hole drilled in masonry, filling the hole with hardening binder material. The bolt comprises a tubular sleeve, closed at the insertion end preferably by squeezing it flat. The other end has an internal screw thread running for part of its length, and a washer is fitted over this end to secure it in the hole. The washer has an elastic sealing lip bearing against the walls of the hole. The peripheral face of the washer can be tapered. The design gives a complete seal, even where the mouth of the hole is not round.
Patent DE-2618101-A1 (DE)
Title: Corrugated asbestos roof panel - has fracture point provided by perforations or notches at all four corners
Inventor: WURMBACH BERTHOLD
IPC: E04D3/32
Filed: 1976-04-26
Abstract: The designed fracture is for asbestos cement panels, flat or more esp. corrugated, and esp. as used on roofs. These have to be capped at the corners to permit a clean and well-sealed panel coverage. The perforation for fracture is made in the panels at all four corners. It may be only partially pressed in. A notch may be used to provide the fracture point, in a variety of forms, and this may not be carried right through to the edge at full depth. There may be two perforations or notchings in two different widths at each corner.
Patent DE-2628222-A1 (DE)
Title: Flue gas cleaning plant for mining waste - has annular chamber with cooled internal rotating shell for sulphur
Inventor: KAUFMANN HANS
IPC: F23J15/06
Filed: 1976-06-23
Abstract: The flue gas cleaning arrangement is used in the processing of minerals met in coal mining. This arrangement ensures full separation of the toxic substances such as sulphur, carbon mnoxide, andcarbon dioxide from flue gases. The flue gases are preheated in the combustion chamber with open flame of a burner, which operates with heavy oxygen excess. The heated gases are directed into an annular space whose inner wall rotates, and is cooled internally so that sulphur vapors are deposited as solids on the surface. The deposited sulphur is scraped from the roller surface. The temperatures of surface is regulated by varying the rotating speed of the roller or by regulating the cooling water quantity sprayed on the inside wall.
Patent DE-2628594-A1 (DE)
Title: Vertical ventilation ducts connected to stacked containers - have swivel nozzles to match inlet port spacing
Inventor: KAELLNER PER ANDERS
IPC: F24F13/02
Filed: 1976-06-25
Abstract: The containers are stacked vertically,a nd contain perishable foods requiring forced ventilation or refrigeration. A vertical duct, located at one end of the container stack, includes a supply and a return pipe for the medium flow. Connecting nozzles for inlet and exhaust are provided along the ducts at levels corresponding to the container ports. Since two types of containers are in use with varying vertical spacing of the connector ports, the inelt and return nozzles have to be adjustable. This is achieved by making the attachment of the S-shaped nozzles on the ducts a swivel connection, which allows the nozzle to move in a vertical plane.
Patent DE-2628826-A1 (DE)
Title: Electrically driven tool gearwheel - has hub and gear ring joined together by insulating material
Inventor: BROECKL WALTER ING GRAD
IPC: F16H55/18
Filed: 1976-06-26
Abstract: The gearwheel is partic. for the gearbox of an electrically-driven tool. It comprises a hub (1) and one or more gear rings (2) of metal, joined together by insulating material (3), so that they cannot slide or turn in relation to each other. The outside of the hub and the inside of the ring can be splined in the lengthwise direction and the insulating material can extend beyond one or both end faces of the gear ring, having teeth where those of the ring are. The hub length can be at least that of the overall length of ring and insulating teeth. The profile can be larger than that of the ring teeth.
Patent DE-2639536-A1 (DE)
Title: High compression engine for additive free fuel - has combined rotating and axially moving valve actuated by camshaft
Inventor: KALTENEGGER BENNO
IPC: F01L7/14
Filed: 1976-09-02
Abstract: The valve systems for four stroke ic engines, has inlet and outlet valves operated by a camshaft. This valve system ensures high compression ratio with fuel which does not contain antiknock compounds and high volumetric efficiency is maintained. The engine does not emit poisonous exhaust fumes. Valve (9) and a slider (16) act together on changing cylinder charge. A common valve is used for inlet and exhaust. The inlet and exhaust processes are controlled by the slide (16). The valve (9) is axial extension of the cylinder (3). The rotating slider (16) is arranged above the valve seat. The valve and slider are driven in the camshaft (15).
Patent DE-2643241-A1 (DE)
Title: Temp. indication system using cholesteric liquid crystals - which are microencapsulated in suspension with matched refractive indices
IPC: G01K11/16
Filed: 1976-09-25
Abstract: The system comprises several liquid crystals of different compsns. and dimensions and placed side-by-side on a supporting surface, each corresponding to a given thermal range. The liquid crystals are deposited onto the surface in suspension with a pliability associated with a plastifier agent. The liquid crystals, the microcapsules contg. the liquid crystals, and the optical pliable elements in which these are in suspension, are all selected so that their refractive indices are as close together as possible.
Patent DE-2645664-A1 (DE)
Title: Bearing assembly for castor - has separate shells held together by snap fastening ratchet formations on tubular extensions
Inventor: DORNSEIF ERICH
IPC: A63C17/22
Filed: 1976-10-09
Abstract: The simple bearing for a castor wheel, or roller skate wheel, has separate side flanges (20, 21) acting as the outside location for the ball races (26) and made from metal pressings. The two flanges are linked together by ratchet surface (17) for a simple snap fastening. The whole wheel assembly is made from a minimum of components and is suited for mass production. No special welding of crimping is required to assemble the wheel. The bearing housing (11, 12) is pref. compressed by the elastic biasing force of the roller (10) of the castor.
Patent DE-2646013-A1 (DE)
Title: (2)-Amino-anthraquinone prodn. from tetrahydro-anthraquinone - by nitration at low temp. then redn.
Inventor: KNIEL PAUL DR
IPC: C07C225/34
Filed: 1976-10-12
Abstract: Prodn. of 2-aminoanthraquinone (I) comprises first reacting 1,4,4a, 9a-tetrahydroanthraquinone (II) with concn. HNO3 at -10 to +20 degrees, esp. -5 to +5 degrees C. The nitration prod. is then dissolved or suspended in water or a mixt. of water and a polar organic solvent which is stable towards redox systems at pH 7.5-12, and reduced to (I) at 70-120 degrees C. Pref. reduction is at 80-105 degrees C using NaSH. Preliminary dehydrogenation of (II) is not necessary and (I) is prod. in good yield and purity. (I) is an intermediate for vat dyes.
Patent DE-2646086-A1 (DE)
Title: Control unit to reduce sensitivity to input fluctuations - has main and auxiliary stages each with proportional and integral units and output stage including manual control
Inventor: NEPPACH HEINZ
IPC: G05B7/02
Filed: 1976-10-13
Abstract: The unit is designed to reduce fluctuations in values of control movements in a regulator and incorporates two similar control units (3, 6) each of which receives control variable values (x1, x2) through converters (2, 5) and transfers them through a switch (1, 4) to a proportional unit (11, 15) and thereafter to an integral unit (14, 18). A feedback signal from each integral unit is returned through a comparator (23, 21). The working value from the first stage (xw1), is converted into a working value from the second stage (xw2), and this, combined with the intervention of a manual control signal (Y5) assisted by a third integrator (19) forms the final output signal (Y).
Patent DE-2651666-A1 (DE)
Title: Instant picture camera with focal plane shutter - has lens frame as objective lens with dimensions corresponding to film format
Inventor: KWIATKOWSKI WOLFGANG
IPC: G03B19/02
Filed: 1976-11-12
Abstract: The instant picture camera has a lens frame as the objective lens. The dimensions of the frame corresponds to the film format (2). The camera uses a focal plane shutter (9). Alternatively, a liq. crystal shutter can be used that covers the whole of the lens frame surface. A rigid polarisation filter (12) and a rotatable one (4) to alter the penetration of light can be mounted in front of the lens frame (11). This latter arrangement enables a set shutter to be used in a cheaper version of the camera, the exposure being controlled by the filters.
Patent DE-2652430-A1 (DE)
Title: Automatic film wind:on mechanism for SLR camera - has electric motor short circuited by diode to obviate resistance to elastic recoil from winding
Inventor: IWASHITA TOMONORI
IPC: G03B17/42
Filed: 1976-11-17
Abstract: The film is wound on immediately after an exposure has been made, and the mechanism is then latched in position until the next exposure has been made. then the latch is released magnetically for the film to be wound on again. Jamming of latches can often be attributed to the motor holding the mechanism too firmly at the end of its travel. To avoid this, the film is first over-wound, and then the electric motor short-circuited with a diode, so that no resistance is offered to the elastic recoil the overwinding induces. This recoil ensures that the latch will not bind.
Patent DE-2654355-A1 (DE)
Title: Disc brake system for heavy vehicles - has power brake on front axle and mechanical brake on rear axle with pneumatic spring cylinder for parking use
Inventor: KLAUE HERMANN DR ING
IPC: F16D65/847
Filed: 1976-12-01
Abstract: Four, two part brake discs provided with friction linings are fitted to two projections carried by the brake bearers. The brake bearers are bolted to the front wheel stub axle flange and permit the discs to freely move axially but not radially. Two tensioning units are located between the discs and actuated by compressed air from pressure hoses. The rear wheels have mechanically actuated disc brakes with an external pneumatically actuated spring cylinder for the parking brake use. The front axle brake housing has a combined air surface of 1m2 to conduct heat away and the combined rear wheel brake housing has a surface area of 0.6m2.
Patent DE-2658883-A1 (DE)
Title: Storage battery charging device - has temp. sensitive controller for battery, and constant voltage controller for voltage sensitive loads
Inventor: GIEPEN ULRICH
IPC: H02J7/14
Filed: 1976-12-24
Abstract: The generator device may be used in a motor vehicle. It supplies voltage sensitive and voltage insensitive loads connected to a storage battery and charges the battery. It has a generator driven by an IC engine and connected to the battery. Two controllers (8, 10) are provided, of which the first (8) controls the battery (2) charging voltage in accordance with the battery (2) temperature, while the second (10) is allocated to the voltage sensitive loads and limits the voltage applied to them to the maximum permissible value.
Patent DE-2659765-A1 (DE)
Title: Preserving hygienic condition of laundered and autoclaved washing - by wrapping it in perforated plastics film
Inventor: KUNTZE GEB GERLACH MARION
IPC: B65D65/24
Filed: 1976-12-29
Abstract: Articles of washing such as bed linen, night gowns, etc., such as are used in hospitals and similar institutions, are preserved in hygienic condition after laundering and sterilisation in an autoclave, by wrapping them, before the autoclaving step, in a tightly sealed plastics film provided with fine perforations which allow gases to pass. The film doubles as packaging for the treated articles. The process is simple and relatively inexpensive. The wrapped washing can be safely handled after treatment without impairing its hygienic state. The film may be of polyethylene or polypropylene. It is transparent and, before perforation, gas-impermeable. Perforating is effected by needle perforation. The wrapping is closed by heat-sealing. The perforations may be selectively located in a specific region of the wrapping.
Patent DE-2700948-A1 (DE)
Title: Hoist motor drive mechanism - has coupling devices fixed to lifting belt between reinforcing components and engaging with pulley
Inventor: HORNIKEL EUGEN ING GRAD
IPC: B66D3/18
Filed: 1977-01-12
Abstract: The hoist drive mechanism has a motor-driven pulley, a round part of which at least a lifting belt is reeved, equipped with a hook etc. at one end. The belt contains inlaid reinforcing material running in the lengthwise direction and tension-resistant, particularly steel wires. The material (44) is spaced apart, and along the belt at regular intervals are coupling devices (46), with fixing devices (50) passing through the belt between the lengths of reinforcing material. These devices engage with complementary ones on the periphery of the pulley. The coupling devices can have bosses fitting in recesses in components on the pulley, and typically of part-spherical section.
Patent DE-2701968-A1 (DE)
Title: IC engine ignition system with ignition coil - has angle control with a store whose value is variable by subsequent rising and lowering phases
Inventor: JUNDT WERNER DIPL ING
IPC: F02P15/10
Filed: 1977-01-19
Abstract: The primary circuit of the ignition coil contains a switch, and its secondary circuit contains the spark plugs. The closing angle of the switch is controlled by a device connected to a signal generator in engagement with a rotary shaft. The angle control device has a storage (21) whose value is variable by successive, continuous decreasing and increasing phases. One phase is defined by the time period of integration between two threshold values, while the other phase is defined by the current flow duration in the primary circuit of the ignition coil (15), starting with the instant at which the primary current has reached a threshold value. The storage value can be transmitted to a second storage (23) on the signal generator (10) output. The switch (13) is closed by preset threshold value of the storage, while being opened by the generator signal.
Patent DE-2707917-A1 (DE)
Title: Cutting a rubber belt contg. steel wires - used in mfr. of automobile tyres
Inventor: ROEDER GEORG DIPL ING
IPC: B29D30/46
Filed: 1977-02-24
Abstract: Stranded steel wires, embedded on both sides in a rubber belt, as required for the production of motor car tyres, which are cut to length by conventional means usually have no exactly straight cut edges because the pull at the end leads to a restriction in the width of the parallel wire bundle. This can be avoided by additional magnetic lifting/advancing strips. A first set of lifting strips is arranged obliquely close to and parallel to the oblique cutting guillotine. A second set of lifting strips, at right angles to the length of rubber belting, is arranged close to the fold at the work table entry. If glass fibres replace the steel wire strands, suction cups are used instead of the magnetic lifting strips.
Patent DE-2713147-A1 (DE)
Title: Automatic processing machine for massive insulated wires - aligns, measures, cuts to length and removes insulation using clamps, rollers and cutters
Inventor: BENEDIX ALFRED DIPL ING
IPC: H02G1/12
Filed: 1977-03-25
Abstract: The processing machine, for massive insulated wires, aligns, measures, cuts to length and removes insulation from the wire automatically as it passes through. The incoming wire (2) is positioned by a series of rollers (1) and passes through a set of insulation stripping knives (3). It then passes through two clamps (9, 11) on sledges and two holders (14, 15) to the cutting station (17). The latter (17) has a cutter block (20) with a driven separating knife (21) and adjustable by means of a spindle (18).
Patent DE-2713740-A1 (DE)
Title: Elapsed day measuring band for conscript soldiers - controls service period with band divided into 400 numbered day sections produced by photoprint process
Inventor: KLUTKE JOHANNES
IPC: G09D3/10
Filed: 1977-03-29
Abstract: An elapsed day measuring band for Conscript soldiers or time serving personnel is used to control their period of service. The band may be 3.69 m long, and it may be 1.5 cm broad. The day measuring band includes a day numbering arrangement from 0 to 400 and the figures from 0 to 99 are 6 mm high whilst those from 100 to 400 have a height of 5 mm. Each day section has a measurement of 1.5 by 0.9 cms with the total band length being 3.69 m and the band has a total diameter of 3 cms when rolled up. The day measuring band is produced by the photoprint process and can be printed in various colours.
Patent DE-2717846-A1 (DE)
Title: Thread transfer for automatic spooling machines - fitted with tread change including auxiliary thread guide with movement controlled by drive unit
Inventor: SCHIMINSKI HERBERT
IPC: B65H67/04
Filed: 1977-04-22
Abstract: The spooling device is fitted with a thread change comprising an auxiliary thread guide with it's movement controlled through a drive unit, and a prong to form a thread loop and a thread reserve; during the forming of the thread reserve a pin axially movable in a length slot of the prong guides the thread into the change over area according to parent patent. Improvement is that the installation to move the pin during the forming of the thread reserve is actuated by a control element. The drive element of the auxiliary thread guide is connected through a control lead with the control element receiving it's control impulse through a switch unit actuated from the drive element dependent on it's path.
Patent DE-2719674-A1 (DE)
Title: Rope winding drum milling machine - uses milling cutter cutting thread groove to fit rope profile
Inventor: SCHWIERS KARL
IPC: B23C3/32
Filed: 1977-05-03
Abstract: A production method is for cylindrical rope drums as used in mining winding machinery. It involves ribs being milled into the cylindrical surface in the form of a thread. In the milling process, the material in the rib cross-section is machined out in a lengthways direction and over the full rib width, commencing from the rib base and moving from inside to out, and moving from the commencement of the rib to its end. The equipment involved for the method has a rib (21, 31) accommodating the drum, and a movable slide (5) whose drive (13) is derived from a shaft (31) drive (4). On the slide is a driven milling head (8) comprising a disc (8) running counterwise to the drum shaft (31) and several blades.