baber/WOPTO huggingface dataset:
Patent DE-2337466-A1 (DE)
Title: Trimming layer type resistors by third contact - involves short circuiting part of resistor to reduce resistance to desired amount
Inventor: ZIBERT KLAUS DIPL-ING
IPC: H01C17/22
Filed: 1973-07-24
Abstract: The object is to obtain maximum utilisation of the available resistance material, and to achieve even current distribution throughout the layer in order to minimise electrical noise generation. This is achieved by placing a third contact between the main contacts and trimming away the amount of surface short circuited by the third contact by a slit along the edge of the resistor under the third contact surface.
Patent DE-2351342-A1 (DE)
Title: Twin-rotor pump with intersecting rotor axes - has driving rotor coupled to driven rotor in common housing
IPC: F01C3/06
Filed: 1973-10-12
Abstract: The driving rotor is fixed on the drive shaft. When the rotors rotate, the spaces between the rotors vary in volume thus producing the pumping action. The rotors may be connected by resilient plastics or rubber inserts. The rotors may be wedge-shaped or curved to control the opening of the inlet and outlets ports. The shaft of the driven rotor may be pivotally carried in the houding to permit varying the output. The rotors may be provided with a common central ball support. The variation of the volume of the chambers is determined by the tilt of the rotors relative to the drive shaft.
Patent DE-2364406-A1 (DE)
Title: Cleaning stamping oil from lead air gun projectiles - using volatile non flammable solvent
Inventor: HAENEL GERHARD DIPL CHEM
IPC: F42B12/74
Filed: 1973-12-22
Abstract: Lead projectiles, esp. for air guns, are made by (1) leading a lead rod through a stamping oil, (2) pressing the rod into a pressing and stamping tool, (3) passing the formed projectiles into a bath of a volatile, non-flammable solvent and (4) removing the solvent from the projectiles in a drying appts. The stamping oil is removed from the lead by a simpler and less time consuming method than in the known process.
Patent DE-2400582-A1 (DE)
Title: 1-Butene prodn. by ethylene dimerisation - with titanium alcoholate-alkylaluminium catalysts
Inventor: BELOW GENNADIJ PETROWITSCH
IPC: C07C2/30
Filed: 1974-01-07
Abstract: 1-Butene is prepd. by dimerisation of ethylene in an org. solvent in the presence of a catalyst system comprising (a) a complex Ti alcoholate of formula (RO)3TiR'.AIR"2OR (where R is 2-4C alkyl; R' = R or H; R" is as defined for R) and a trialkylaluminium or (b) a Ti alcoholate of formula Ti(OR)4, a dialkylaluminium hydride and a modifier comprising dicyclopentadienyltitanium dichloride, O2, m-phenyl-enediamine or N-phenyl-beta-naphthylamine. 1-Butene is used in the prodn. of n-butanol, ethylene/butylene copolymers, isotactic polybutene, butene oligomers and butadiene. Compared with conventional ti alcoholate catalysts, system (a) increases the yield of 1-butene by ca. 25 wt. % and decreases the yield of by-prods. (higher olefins, polyethylene) to 1.7-5.3 wt. % and system (b) increases the yield of 1-butene by 10-20%.
Patent DE-2401436-A1 (DE)
Title: Aerobic fermentation with control of oxygen and temp. - by varying proportions of gases bubbled through tank
Inventor: HERRICK CARLYLE SHELDON
IPC: C12M1/36
Filed: 1974-01-12
Abstract: An apparatus for carrying out controlled aerobic fermentation comprises a vessel, an agitator, a first gas inlet pipe comprising a regulator valve, the setting of which is determined as a function of the molecular oxygen content of the system as read by an oxygen indicator, and a second gas inlet pipe, comprising a regulator valve, the setting of which is regulated as a function of a temperature sensor in the system. Pref. the agitator is a flat bladed turbine and one of the pipes introduced gas (air) just below the blades so that maximum bubble formation is obtained. The oxygen content and temp. in the tank can be easily regulated; no cooling pipes are needed for removing excess heat generated. The bubbling action produced by one or other of the feeds achieves this result.
Patent DE-2402410-A1 (DE)
Title: Continuous prodn. of chip or fibre boards - uses lignocellulosic particles wetted with binder formed into felt on conveyor belt
IPC: B27N3/18
Filed: 1974-01-18
Abstract: The felt, formed by spreading of the binder wetted particles on an endless conveyor belt, are fed into a press for heat treatment, curing the binder and formation of chip or fibre board strip. Specifically the upper cover layer of the felt structure is heated prior to reaching the inlet region of the press. An indirect radiation heating in the range of 30-50 degrees C is sufficient. This provides a sweating effect in the felt cover layer, which prevents dust formation on the felt and the felt fed into the press has a uniform thickness. The produced boards are 1.6 to 30 mm thick, have an improved density distribution and a very small thickness tolerance.
Patent DE-2407641-A1 (DE)
Title: Ear-mark for pigs - consists of hollow metal pin with one sharp edge one flanged edge, and identification tag
Inventor: WIJK ANTOON VAN
IPC: A01K11/00
Filed: 1974-02-18
Abstract: The metal pin has a sharp edge at one end for inserting through the animal's ear. The other edge ends in a flange, of diameter larger than the other end, which rests against the outer side of the animal's ear. The smaller pin opening has a hole for an identification tag. A disc made of elastic material, such as plastic, and of any colour, with a centre hole, is pushed over the pin against the flange end. The disc is curved concavely outwards a little, and has a diameter larger than that of the flange. The flange is thereby sunk into the hollow of the disc.
Patent DE-2411432-A1 (DE)
Title: Hydrostatic drive regulator system - has comparator to eliminate pressure fluctuations
Inventor: KOENIG WALTER PROF DR ING
IPC: B60W30/18
Filed: 1974-03-09
Abstract: A hydraulic pump driven by the engine output shaft is in closed circuit with an hydraulic motor which serves as the secondary part of a hydrostatic drive. A constant hydraulic pump is connected with its suction side to a storage tank and its pressure side to a metering and comparator unit contg. an adjustable throttle linked mechanically with the engines fuel regulator via an adjustment member which is actuated by a comparator which, on the working pressure exceeding a pre-determined pressure, establishes a connection with the return flow. The fu el regulator adjuster is connected to a multiplication unit which continuously forms a product of the working pressure in the high pressure feed and the hydraulic motors delivery volume.
Patent DE-2411881-A1 (DE)
Title: Enamelling cylindrical hollow bodies - filled with enamel slip and rotated while horizontal or inclined under vibration
Inventor: TITZE KARL DIPL ING DR TECHN
IPC: C23D5/00
Filed: 1974-03-12
Abstract: Enamelling of hollow cylindrical bodies takes place by turning the hollow body, filled at least partly with enamel slip, under vibration, in a horizontal to inclined position. After coating the walls and bottom to be enamelled with slip, the body is drawn up to the vertical position, until emptied, pref. while maintaining rotational motion. Esp. for large articles, e.g. hot water tanks and barrels. Enamel coating is dense, non-porous and free from striations.
Patent DE-2414942-A1 (DE)
Title: Sealing-length-covered flat roof end cladding - with bracing bolts under spring action clamping holder and cover rails together
Inventor: LAURICH HANS
IPC: E04D13/15
Filed: 1974-03-28
Abstract: The end cladding is for flat roofs covered with sealing lengths, comprising a holder rail fixed to the building and a covering rail overlapping the upper edge of this, and pressing the sealing strips, which have been led between the two rails, against the upper edge of the holder rail, and it is designed to prevent loosening and loss of clamping effect caused by long-term temperature-induced volume changes in the rails. Bracing bolts are provided for insertion in specially provided holes in the assembly of the cladding, standing under spring action, and able to clamp the holder and covering rails together with an constant firmness, when the locked and braced bolts are released.
Patent DE-2417496-A1 (DE)
Title: Tractor-towed implement support for rows of root crops - has one fixture-piece by which implement(s) are fixed at one time
IPC: A01B39/22
Filed: 1974-04-10
Abstract: The implements are fixed to the support by means of movable attachments, and are secured by one fixture-piece which is a clamp, preferably an adjusting or clamping screw. The implements can be moved in different directions, especially in a lengthwise and crosswise direction. The fixture-pieces are inserted into one hole in the support to form one unit which rests against the-preferably top wall, wall of the hole in the support, and against an adjustable, preferably underneath, abutment in the hole. An intermediate piece is inserted between the parallel surfaces of the implement fixture pieces in the hole.
Patent DE-2419300-A1 (DE)
Title: Portable stool with canvas seat - has legs fixed to base to fold up into carrying rod
Inventor: MOECKEL EWALD
IPC: A47C9/10
Filed: 1974-04-22
Abstract: The fold-up stool is provided with two legs which are connected together in scissor-fashion where the lower ends are fastened to a horizontal elongate base member having on the underneath a stand surface which allows the stool to be set up both on inside and external ground. One leg is fastened to a fixed joint whilst the other is fastened to a joint which can be moved along the base member relative to the fixed joint so that the legs and base can be brought into a parallel position thereby forming a rod-like unit which can be easily carried and stored away. The canvas or similar seat is attached between the upper ends of the legs in the normal way and since the base member is at right angles to the direction of sight of the occupant there is nodanger of the seat toppling over.
Patent DE-2421259-A1 (DE)
Title: Height adjustable chair - has stands having guides to attach seat and foot boards at different heights
Inventor: OPSVIK PETER
IPC: A47C3/20
Filed: 1974-05-02
Abstract: The chair has height adjustment with side stands extending into supports at their lower ends and carrying a backrest at their upper part equipped with fittings to attach the seat at different heights. The stands have guides at their inside extending over a considerably part of their height running in a mainly horizontal direction to hold the side edges of a seat board and a foot board. There are means to fix the seat and foot boards by screws and nuts and the tightening of these also moves the stands towards each other. There is also a connection to connect a belt to prevent a child from falling forward.
Patent DE-2424702-A1 (DE)
Title: Glass-ceramic carrier plates for electric circuits - with lead holes formed by photo-masking and etching with dil. acid or alkali
Inventor: LAUCKNER HANS DR RER NAT
IPC: H01L23/15
Filed: 1974-05-21
Abstract: Prodn. of carrier plates for thin- or thick-layer circuits provided with holes for leads or contact pins, is improved in that the plates are produced from a molten glass-ceramic compsn. which is allowed to solidify in the glassy form, heated again to the soft state, cooled again to solidify in the crystalline form, and melted at a high temp.; the holes are produced by the photo-mashing and etching technique using a dil. acid or alkali. The holes can be accurately located. The etching proceeds readily, even under mild conditions (dilute acids or alkalis). The glass-ceramic compsn. pref consists of the PbO-SnO-B2O3 system with addition of PbF2 (the m.ot. is about 500 C). The etching of the holes (in places not covered by the photo mask) is pref. carried out with dil. HNO2 or dil. CH3COOH.
Patent DE-2424918-A1 (DE)
Title: Felt tip pen with exchangeable ink cartridge - preventing initial spluttering and final retention of residual ink
Inventor: MECKE NORBERT DR
IPC: B43K8/02
Filed: 1974-05-22
Abstract: A felt tip pen has an exchangeable ink cartridge (7) mounted in its hollow shaft and containing at least part of the ink supply. Ink is supplied to the tip of the pen via a supply wick (2) of which the rear end (5) communicates with a transfer wick (6) of which the free and protrudes into the ink cartridge. The front end (3) of the supply wick is connected to a writing wick (4). No ventilation system or other regulating system is required to provide uniform flow of ink, as the amount of ink drawn out of the cartridge as equal to the amount transferred from the supply wick to the tip.
Patent DE-2435201-A1 (DE)
Title: Spring contact for plug connector socket - has two rolled-up flaps forming contact slit for flat contact pin with lateral solder tags
Inventor: PAESSLER HORST
IPC: H01R13/115
Filed: 1974-07-22
Abstract: The spring contact for plug connector sockets, contact holders etc. accepts flat contact pins and has solder tags projecting from the socket housing. The spring contact is constructed from a profiled metal sheet with two rolled-up flaps (5) forming a contact slit for the flat contact pin and the two solder tags (4) at right angles to the rolled-up flaps. A further flap acts as an additional solder tag and is seated in a recess in the socket housing. Further rolled-up flaps and/or solder tags can be formed as required by closing a suitably shaped piece of sheet metal.
Patent DE-2435641-A1 (DE)
Title: Contact rail for electric vehicle - with conductor strip cold pressed into top of light alloy rail
Inventor: LIGONES HUBERT
IPC: B60M1/30
Filed: 1974-07-24
Abstract: The light alloy rail is formed by extrusion, or rolling and has two parallel grooves cut in the top surface. A conductor strip is shaped with two turned over lips clipped into the grooves. The edges of the rail are then pressed, or rolled to compress the lips in the grooves to form a cold weld, for electric contact. The conductor strip is provided with a series of holes which fit over shaped studs in the top of the rail, so that after machining they form simple rivets. The conductor and the top surface of the rail are slightly convex for improved running of the take-up shoe.
Patent DE-2437246-A1 (DE)
Title: Closing device for thermoplastic moulding machines - with stop for subdividing return stroke of piston of pressure unit
Inventor: LADDA-ZUNK BARBARA ING GRAD
IPC: B29C45/67
Filed: 1974-08-02
Abstract: Mould closing device for machines for processing thermoplastic masses, e.g., injection moulding machines, has a working unit for moving the mould support into its closed and open positions, and a hydraulically operated piston-cylinder unit forming a pressure unit for holding the mould in its closed position. A stop is provided for sub-dividing the return stroke of the piston of the pressure unit. The stop sub-divides the return stroke into a "breathing" stroke and an unlocking stroke. This enables mouldings to be produced with a foamed core and a smooth surface. The construction is relatively simple and reliable, and operation is effected independently of the moulding part.
Patent DE-2443640-A1 (DE)
Title: Adjustable suspension for car wheel - with variable length bolts to secure pivot axle for suspension arms
Inventor: KRONIGER WILHELM
IPC: B62D17/00
Filed: 1974-09-12
Abstract: The support arms (1) for the car wheel are pivotted on bearings at each end of a mounting axle (2) secured on the side of the wheel cavity by special bolts. The bolts are fitted with support sleeves and aligned flanges so that the relative angle of the axle to the cavity wall is easily adjusted by both or either bolts. This provides a simple adjustment for the toe in and camber of the car wheel without any special tools, and without requiring any special fittings on the car body. The inner nut is in two halves, (6, 10) held together in the chassis member by an outer locking nut (8).
Patent DE-2447367-A1 (DE)
Title: Cable tension for plug connectors - has pin bridge with cable relief plate of organic glass or metal
Inventor: HEROLD HANSI FRITZ
IPC: H01R13/58
Filed: 1974-10-04
Abstract: The cable tension relief is intended for plug connectors, in order to prevent pulling out of connecting wires and cable cores secured to the plug pin end by soldering, welding, screwing, or insertion. For this purpose the pin bridge (1) supports the connected wire (2) or cable core by means of a tension relief plate (3) which may be of organic glass, other plastics or metal. Thus tension relief plate may be secured to the bridge by screwing adhesion or casting. The tension relief plate may be replaced by a cam of the same material.
Patent DE-2452353-A1 (DE)
Title: Clear, high impact, vinyl halide (co)polymers - by (co)polymsg. with water sol. monomer sol. catalysts, and graft polymsg.
Inventor: WEI CHUNG H
IPC: C08F14/06
Filed: 1974-11-05
Abstract: Vinyl or vinylidene halide (co)polymers with a good impact resistance and clarity, in the form of particles having a porous or irregular urface are prepd. by (a) suspension polymsg. (the (co) monomers) in the presence of 0. 05-1.0 wt. % monomer-sol. catalyst, and 0.003-0.6 wt.% water-sol. catalyst, until polymsn. is >=60% completed, (b) isolating the polymer particles, (c) forming a suspension of the polymer particles, (d) adding a monomer compsn. capable of forming a rubber-contg. interpolymer with a Tg of  25 degrees C and (e) polymsg. the monomer compsn. in the presence of the polymer suspension. Gives easily handled and moulded polymer particles that are free of polymsn. impurities.
Patent DE-2459847-A1 (DE)
Title: Arm rest on motor vehicle side door - is used as pivoted handle for actuating door lock
Inventor: PROTZE DIETER
IPC: E05B83/36
Filed: 1974-12-18
Abstract: The side doors, especially for motor vehicles, have arm rests on the inner side. These rests provide support for the arm below elbow and they can also be used as door closing handles. A further function of this arm rest is to act as a pivoted door opening handle and hence any other opening handles are eliminated. The arm rest is pivoted about a pin and it is provided with an actuating plate. This plate is held in rest position by a spring loaded lever. The door lock is actuated by a mechanism which in turn is actuated by the arm rest via carrier.
Patent DE-2461010-A1 (DE)
Title: Cylindrical fire box boiler with double tube jacket - has flow spoiling bar joining double wall surrounding jacket tubes
Inventor: WILQUIN HEINZ
IPC: F24H1/24
Filed: 1974-12-21
Abstract: In an addition to 2010293 a boiler with cylindrical fire box to the front end of which is attached a burner. A water space in the form of a double jacket surrounds the fire box, has attachments for inlet and outlet of water flows such that the jackets are constructed from double walled pipes concentrically attached at a radial separation from each other which end at different positions in relation to the burner and floor opposite the burner. The walls (8, 9) of each double walled tube (6, 7) are connected by a bar (10, 11) interrupting the through flow of water which extends along the jacket line in the longitudinal direction.
Patent DE-2505217-A1 (DE)
Inventor: SCHIEMANN HEINZ
IPC: F16K51/00
Filed: 1975-02-05
Abstract: This pipe screw union is intended to allow connection of a container which is filled with gas or fluid at an overpressure to a further container, which is at atmospheric pressure, without gas or fluid losses. For this purpose, the pipe screw union contains an inner pipe part (5) which is provided at one end (6) with lateral through-openings (7); these are gripped by a displaceable, sealing sleeve (8) which is displaced to release the through-openings (7) when the inner pipe part (5) is fitted into a further outer pipe part (12). The pipe screw union is primarily suitable for measurement transducers have an equalising container. <IMAGE>
Patent DE-2510801-A1 (DE)
Title: Mass spectrometer circuit for medical purposes - has control networks whose amplification rate is regulated by specified pulse signals
Inventor: SCHEID PETER DR
IPC: H01J49/04
Filed: 1975-03-12
Abstract: The mass spectrometer with gas mixture input feed has a circuit generating signals proportional to the specified volume of components of the gas mixture. The output signals of the mass spectrometer, proportional to the partial pressures of the specified components are supplied to a summation circuit specified numbers of control circuits with regulatable amplifying factors. The summation circuit transmits a faulty voltage as a function of the difference between the sum of output signals and a rated value signal, whose value is specified, as in 2037698. The amplifying rate of the control circuits is regulated by a pulse signal with a pulse width corresponding to the control circuits output signals.
Patent DE-2511109-A1 (DE)
Title: Cement grout obtd. from gas washing muds - uses lime and limestone added for washing and fly ash in the gas
Inventor: MINNICK LEONARD JOHN
IPC: C04B7/24
Filed: 1975-03-13
Abstract: The parent patent described removal and use of washing muds obtd. from washing off-gases with lime or limestone to remove sulphur oxides. The muds which contain sulphites and/or sulphites are dehydrated and treated with lime and/or fly ash to give cementitious compsns. comprising 30-90% solids including 0.25-70% alkaline earth sulphite, 0.25-70 wt % alkaline earth hydroxide and 10-99.5% fly ash. This mixt. was used for grouting or pointing of mortar layers on brick buildings. In this addition patent, the mud itself can provide part or all the alkaline earth hydroxide and/or the fly ash necessary to provide the stoichiometric excess of lime or limestone used in the washing and subsequently available for reaction. Similarly the fly ash need not be separated from the off gases before washing and this flay ash is then available to the reaction. The residual matl. has a pozzolanic activity equal to 10-99.5% of fly ash according to ASTM C 618. There is no need to separate the fly ash before operation and the lime needed may be incorporated at the washing stage.
Patent DE-2511762-A1 (DE)
Title: Centrifugal pump impeller projection - extends between inlet blade edges in housing inflow channel
Inventor: ESSER GERD ALFRED ING GRAD
IPC: F04D29/42
Filed: 1975-03-18
Abstract: Centrifugal pump, particularly a submerged pump, in which between the inlet edges (37) of the impeller blades (36) on the inflow side of the impeller (17) an impeller projection (39) extends out into the axially directed inflow channel (16) of the housing (14). The projection (39) constantly curves into the impeller contour (35) in the area of the blade inflow edges, and on the inflow side of the impeller a guide grid type pre-torsion prevention unit (48) is fitted. This unit can take the form of guide blade type steps in the housing part (14) containing the impeller (17), and which extend radially with equal or unequal angular distribution from the inflow channel (16) centre coinciding with the impeller axis.
Patent DE-2522443-A1 (DE)
Title: Water valve with two seats, one for high pressure - preventing exit of water in case of leaks or detachment of hose
Inventor: KLEIN HARTMUT
IPC: D06F39/08
Filed: 1975-05-21
Abstract: Valve for protection against damage by water comprises a closure member which is pressed into a first closed position against a first seat by a given reaction pressure against the water pipe pressure, which is lifted off the first seat to open the valve to a stable intermediate position under the action of differential pressure occurring at the closure member when the appliance is switched on, and which is moved in the direction of flow into a second closed position against a second seat when pressure on the closure member in the stable position exceeds a given value. Pref. the first seat is bridged by a channel so that water pipe pressure acting on the front surface of the closure member in the first closed position also acts on its rear surface to form at least partially the reaction pressure; and when the closure member is lifted off the first seat, pressure on the rear surface of the closure member falls.