baber/WOPTO huggingface dataset:
Patent DE-2212072-A1 (DE)
Title: Precision investment casting appts - dental restorations produced using wax surrounding plastic material casting tree
Inventor: COOPER ABRAHAM J
IPC: B29C39/00
Filed: 1972-03-13
Abstract: A precision investment casting tree used e.g. for making dental crowns and caps, rings etc. formed of relatively high m.pt. plastics material surrounded by a lower m.pt. wax is built to support a number of small wax patterns. The tree is supported by a base and surrounded by investment material. The plastics members are hollow so that on heatint the wax melts and runs out of the investment material leaving a cavity within the material. On heating again to a higher temp. the plastic melts and runs out of the investment material leaving a sprued investment material which will ensure high quality casting.
Patent DE-2229121-A1 (DE)
Title: Back-flooding block valve - to prevent reverse flow in a drainage channel esp from cellar
Inventor: SCHROEDER HANS
IPC: E03F7/04
Filed: 1972-06-15
Abstract: A chamber of e.g. plastics material, is placed on the pipe from the drainage fit in the cellar floor and the main drain and over the outlet port to the drain, which is sloping, is a hinged, elastic plastic faced stop plate operated by a hydraulic inflated bag. The bag is connected to a water-supply via a two-chamber type float valve in the chamber. The component parts of this valve are also of non-rotting, e.g. plastics and stainless steel, materials. Suitable materials include hard PVC and high pressure polyethylene.
Patent DE-2321473-A1 (DE)
Title: Impregnation of wool felt board - by spray application and two groups of suction units with collecting tanks
Inventor: BEETZ ERICH
IPC: D21H23/50
Filed: 1973-04-27
Abstract: Designed for impregnation with a bacterial preserving agent such as benzalkonium chloride, sodium pentachlorophenolate, phenyl mercuric acylate or the like, the soln. is sprayed on the material, which acts as a filter, for the first group of suction units to draw mainly water through which is held in the first tank, the second group of suction units extracting mainly surplus impregnating agent which is passed to a second tank for recovery. This provides a simple impregnation process with simple fluid handling techniques without a recirculating circuit or thinning the agent with water.
Patent DE-2340852-A1 (DE)
Title: Expanded porous glass ceramic - contg lithium compound as expansion agent
Inventor: SIMMINGSKOELD BO KURT WILHELM
IPC: C03C11/00
Filed: 1973-08-13
Abstract: Porous glass ceramic material is prepd. by heating a mixture of powdered glass material e.g. bottle or window glass or slag with a Li contg. expansion agent e.g. Li2CO3 and pref. with other expansion agents at =1000 degrees C for 1-5 hrs.
Patent DE-2345202-A1 (DE)
Title: Insertable concrete reinforcement component spacer bar - with ends for support on form walling and slits to embrace reinforcing iron
Inventor: GEBERT MANFRED
IPC: B28B7/24
Filed: 1973-09-07
Abstract: The spacer is for insertion on reinforcing elements used in concrete construction, its ends being intended for bracing against the sides of the shuttering or mould casing, and the open slit or slits - pref. two - in the intervening area for grasping a reinforcing iron. It is pref. made of elastic material, with slits narrowing for snap action, and formed from cuts in the bar which is otherwise of constant cross-section and tubular. Plastic or other low-heat-conductive non-metallic material is suitable. Intervals between reinforcement components and formwork, and between the reinforcement components themselves, can be securely maintained, and the spacer is esp. suitable for use between two sets of matting.
Patent DE-2347670-A1 (DE)
Title: Electroluminescent solid-state device - controls charge carrier recombination rate from indirect to direct semiconductor by magnetic field
Inventor: HEYWANG WALTER PROF DIPL PHYS
IPC: H01L29/00
Filed: 1973-09-21
Abstract: An electroluminescent solid-state device consists of two regions bordering in a heterojunction. The first region, which produces the excess charge carriers and is designed as diode with a pn-junction and an electrode on both sides, is an indirect semiconductor in which a radiant transition of electrons from the conduction band to the valence band is impossible. The second region is a direct semiconductor which is designed as thin surface zone and provides for such a direct transition. This magnifies the radiant recombination rate and makes it possible to control the device through a magnetic field.
Patent DE-2350681-A1 (DE)
Title: Smokeless flaring furnace for combustion of gaseous hydrocarbon - has means for injecting fine droplet water spray into flame of gas stream
Inventor: ZINK JOHN SMITH
IPC: F23G7/08
Filed: 1973-10-09
Abstract: The ratio of the weight of hydrogen tocarbon in the fuel is less than one quarter. Addition of a fine spray of water adjusts the hydrogen and carbon weight ratio to such a value that free carbon cannot escape from the flame in the form of smoke. The special sprayer used operates with liquid water and droplets which have diameter of about ten microns are formed by means of a high speed gas stream from a water surface. These small water particles are immediately evaporated in the flame and the generated steam is available for conversion reaction. The gas is supplied through a pipe which has a nozzle plate at its upper end. This upper end is enclosed by a cylindrical chamber which is connected to the gas pipe.
Patent DE-2353190-A1 (DE)
Title: Hydraulic rotary motor or pump - has rotor chamber with ports containing three-pronged rotor engaging two rotary stators
Inventor: BRUNDAGE ROBERT WESLEY
IPC: F01C17/02
Filed: 1973-10-24
Abstract: The housing contains a rotor chamber with curved internal wall, and stator chambers with circular walls intersecting the rotor chamber wall. The rotor has a hub section and three equi-spaced radial projections or prongs. Each stator is provided with diametrically opposed recesses for receiving the rotor prongs, and projections capable of sealingly engaging the rotor hub between prongs. There are fluid inlet and outlet ducts freely communicating with the rotor chamber and positioned in the chamber wall. Means are provided to drive rotor and stators synchronously. The rotor prongs are preferably provided with sealing means, sealing against the chamber wall under the action of fluid pressure. Further sealing means energized by fluid pressure are preferably provided between the stator prongs and the rotor hub.
Patent DE-2358110-A1 (DE)
Title: Book with sound illustrations - uses records with spiral sound grooves fitted to each page or to an inserted booklet
Inventor: DOERING ERICH
IPC: B42D3/12
Filed: 1973-11-21
Abstract: Book with sound illustrations has areas fitted to each page for the attachment of sound reproducing apparatus with records including a spiral shaped sound groove. The book covers project on at least one edge beyond the bookblock area by at least the size of a sound illustration area and with each sound groove with its corresponding adjustment devices being attached to the inside of the projecting book cover edge. Sound grooves are also fitted to the inside of a booklet inserted inside the covers of the book so that with the book open the booklet is positioned next to the book.
Patent DE-2365269-A1 (DE)
Title: Adding active ingredients to detergents - with melt-sprayed mixt contg colloidal silica or aluminium silicate swelling in water
Inventor: BOECK ALEXANDER DIPL CHEM DR
IPC: C11D17/00
Filed: 1973-12-31
Abstract: Particulate active ingredient-free component of detergent additive consists of (A) 20-70% of >=1 satd. fatty acid or fatty alcohol having m.pt. >30 degrees C, (B) 10-50% of at least one water-soluble polyglycol or non-ionic or anionic tenside and (C) 1-20% colloidal SiO2 and/or water-contg. Al silicate, pref. MgAl silicate with ribbon or tubular configuration of the silicate and aluminate gps, capable of swelling in water. Wt. ration (A) : (B) is 5 : 1 to 1 : 2 (3 : 1 to 1 : 1) and mixt. of (A) and (B) pref. has m.pt. > 38 degrees C. Used as additive contg. an active ingredient enhancing washing, bleaching or germicidal activity of powdery detergent compsn. Detergent additive (i) resists storage, e.g. active perborate content of detergent contg. tetraacetyl glycoluril (I), added as bleach activator in additive compsn., is improved from 1% to 85% after 4 weeks at 30 degrees C and 80% RH, w.r.t. control contg. (I) added to liquid concentrate before spraying; (ii) dissolves easily.
Patent DE-2406544-A1 (DE)
Title: Type carrier for roller printer - has continuously rotating type drum with type carriers having gear wheel segments
Inventor: BURKHARDT GOTTFRIED
IPC: B41J1/50
Filed: 1974-02-12
Abstract: The carrier is so designed that only the types which are to be used at any one time are linked up. In this way the life of the ink pad is increased. The type shaft has a transverse pin which is located in a bearing hole in the shaft and interacts with a control rim over which a plate with an internally toothed segment is positioned. This segment has two toothed regions of which the first contains a stationary mounted ink pad and effects a first rotation of the type shaft, while the second region effects a second rotation which brings the type shaft into the starting position. Sawtoothed cutouts are formed in the transverse pin in which a spring loaded pressure piece mounted in the type carrier can be selectively engaged.
Patent DE-2413412-A1 (DE)
Title: Cyclic carboxylic acid dihydrazide polymers - used as high temp adhesives etc in aircraft
Inventor: HAN YUR WHA-YUL
IPC: C08G73/06
Filed: 1974-03-18
Abstract: A N-N cyclised cyclic arboxylic acid dihydrazide-diol polymer is prepd. by reacting a cyclic polycarboxylic acid dihydrazide (I) with a diol (II) and aldehyde (III) at 95-120 degrees C to form an uncyclised polyamic acid polymer and then heating this polymer >120 degrees C to internally N-H cyclise the polyamic acid. A polar solvent (IV) can be added prior to the polymn. Pref. I is pyromellitic dicarboxylic acid dehydrazide (V) and II is pref. 1,5-pentane diol dihydroxydiphenylsulphone, diethylene glycol, trans-1,4-cyclohexane-dimethanol and 2,2,3,3,4,4-hexafluora-1,5-pentane diol. Pref. III is HCHO and IV is 1-ME-2-pyrrolidone, DMF, DMA, DMSO and THF. Prod. has good high temp. and oxidn. resistance props. and is suitable for use as adhesives, sealants, etc. for high performance aircraft.
Patent DE-2426728-A1 (DE)
Title: Adjustable head rest for car seat - has transverse slider to engage ratchets on headrest supports
Inventor: HOFMEISTER WILHELM
IPC: B60N2/48
Filed: 1974-06-01
Abstract: The head rest is supported on two vertical shafts (8) which are cut with a pattern of ratchet slots (9) on the rear. The shafts are guided through holes in the transverse frame members (5) of the seat back. A spring-loaded slider bar (10) is mounted on one transverse member and is provided with special holes through which the shafts are positioned. The holes are wide enough at one side to allow the shafts to pass through and are provided with restrictions at the other side to firmly grip the ratchet bars. To release the adjustment the spring-loaded bar is pressed in at the side of the seat back. The headrest is secured even in severe collisions.
Patent DE-2430710-A1 (DE)
Title: Positioner change sensor - responds to rotation about at least one axis and protects objects against unauthorised removal
Inventor: MENZEL UWE
IPC: G01P15/11
Filed: 1974-06-26
Abstract: A spherical magnet is provided freely moving inside an induction coil attached to the protected object and connected to an evaluation device amplifying induction pulses generated by the magnet movement, and responding to a specified number of pulses. The coil acts at the same time as receiver coil of an inductive proximity switch. An easily magnetised sphere (4) is free to move within the cylindrical inner space (1) of a cylindrical coil (3) with coils ranging in many directions on a core (2). The space (1) is enclosed at the bottom by an insulating board (5) and at the top by a cap (6) which encompasses the whole spool. Movement of the sphere induces an e.m.f. in at least one of the coils.
Patent DE-2433130-A1 (DE)
Title: Electronic contactless alignment measuring system - has detector of relative clearance changes between two coils by using eddy currents
Inventor: ALBRECHT JUERGEN ING GRAD
IPC: G01B7/31
Filed: 1974-07-10
Abstract: The alignment checking uses electronic measuring of coil space changing in an eddy current field. The relative space change is displayed on a path-indicating logarithmic scale. According to the magnitude and position of the deviation, the scale shows the influence of the permeability and conductivity of the material and the ambient temperature, as well as toher influential variables. Averaging of the two measured clarity and simplicity. Averaging of the two measured values determines the radial offset, and the difference formation determines the axial offset. A universal clamping device can be used to allow easy and reliable mounting. the support can consists of various moulded parts.
Patent DE-2434238-A1 (DE)
Title: System to store and retrieve stored energy - has gas type auxiliary energy storage medium which is liquefied when energy requirements are low
Inventor: RUECKBORN GUENTER DIPL ING
IPC: F25J3/04
Filed: 1974-07-16
Abstract: A method to supply energy consumers with energy produced by generator which in times of low energy consumption stores part of the energy produced by means of a gas type auxiliary energy carrying agent is constructed such that in time of low energy requirement the auxiliary energy carrying medium is liquefied and stored under almost no pressure condition. During times of large energy requirement the auxiliary energy transport medium is vapourised, heated up and efficiently expanded. A gas turbine, compressor, cooler and reactor may be incorporated in the closed cycle.
Patent DE-2436311-A1 (DE)
Title: Joint separator for flanged pipes - has jaws inserted in bolt holes and point forced into gap by screw
Inventor: KLEINBONGARTZ WOLFGANG ING GRA
IPC: B25B27/16
Filed: 1974-07-27
Abstract: The joint separator for flanged tubes, for removal of seals, for renewal, consists of a threaded spindle (1) with a hand grip (3) at the top passing through an internally threaded cylinder which acts both as a nut and as a pivot for a pair of jaws (5, 51). These jaws terminate in elongated noses (5a, 5a1) shaped to fit into the bolt holes (8a, 9a) through the flanges (8, 9), and shich will fit into a range of sizes of hole. At the same time, the pointed end (ac) of the spindle enters the gap between the flanges, and can be forced into it by rotating the spindle. To separate the flanges, two such tools may be used, one each side.
Patent DE-2437949-A1 (DE)
Title: Float switch for level limiting - has housing with float chamber for heating and processing installations
Inventor: HAENLE HANS
IPC: G01F23/32
Filed: 1974-08-07
Abstract: The float chamber has at least one terminal. A float is provided which operates an electric switch outside the housing through a lever system. A function control device regulates the float position. It comprises a transmission element (44) operating the above switch (22). It is moved to a position operating the switch by the component (39) of the lever system brought out from the float chamber, and by the function control device (56). The functioning of the operating member (46) of the switch (22) occurs directly via the transmission lever (44) since a further latching arrangement is connected between both parts consisting of a blocking lever (48) which is in a vertical position to the transmission lever in its disengaged position.
Patent DE-2438758-A1 (DE)
Title: Piezoelectric ceramic resonator - has ceramic rectangular or round element with central electrodes on two sides
Inventor: SCHUMACHER HEINZ DIPL ING
IPC: H03H9/13
Filed: 1974-08-13
Abstract: One or more electrode pairs is provided on one of the main surfaces, electrically separated from each other, with a corresponding number of counter-electrodes on the other surface. Their dimensions correspond to those on the first surface. All electrodes have leads and contact surfaces at the ceramic element edge. Counter-electrodes are surrounded on all sides by a ring electrode, connected to the electrodes by conducting strips. The pair of electrodes (2) installed upon the piezo-electric ceramic element (1) is galvanically separated by a narrow gap (3). Connecting strips (4) couple the electrodes with the connecting surfaces (5). The metal structures can be fitted by either thin or thick layer technique to the ceramic element, e.g. vaporisation, screen printing, chemical and galvanic processes.
Patent DE-2442608-A1 (DE)
Title: Fault finding in printed cct of colour T.V. - using stencil with apertures corresponding to fastening elements
Inventor: GUBLASS EDUARD
IPC: G01R31/28
Filed: 1974-09-05
Abstract: The fault finding procedure is applicable to printed circuits especially in colour television sets and uses a specially cut stencil with apertures corresponding to fastening elements on the printed circuit board. In association with other apertures in the stencil certain circuit points are thereby made readily assessable. These circuit points are then sequentially tested until the fault is found by e.g. disappearance of sound, brightness, or a colour, or variation from a prescribed value. The associated component is then thoroughly examined and/or the testing is continued as indicated by an arrow or joining line on the stencil.
Patent DE-2446927-A1 (DE)
Title: Wide surface variable radius curved concreting framework - with sideways movable beam shank ends engaging membrane and variable length chord sections
Inventor: MAIER JOSEF
IPC: E04G11/06
Filed: 1974-10-01
Abstract: The large-area form assembly, comprising form membrane, supporting beams and beam-interconnecting transverse chord, is esp. suitable for use in concreting large tanks with different radii of curvature. The beams (2) have shanks (3) engaging the form membrane (5) with one open edge (4), and these shanks can be moved sideways in the area of their engagement without causing lasting deformation. Chord sections (6), of different length, or of adjustable length, can be attached to the beams, running across their line and connecting them together; threaded spindles may be used for length adjustment of these. The shanks, on a U-shaped beam, may run out at an angle to each other crossways, and may be fitted with length-adjustable spacer units.
Patent DE-2447188-A1 (DE)
Title: Acceleration indicator instrument for motor vehicles - has hinged connection to vehicle and pedestal for instrument housing
Inventor: BUSCH HEINRICH
IPC: B60Q1/44
Filed: 1974-10-03
Abstract: The hinged connection between the instrument housing and a pedestal acting as a standing surface enables the instrument to be pivoted forwards and backwards parallel to the direction of travel of the vehicle. Bearing plates with vertical slits are arranged on two opposing sides of the pedestal. On both sides of the instrument housing there is a bearing journal which is received and guided by the slits when the instrument is placed on the pedestal. The instrument housing can have a rod linkage hinged to it, so that the vehicle driver can pivot the instrument out of its housing from his seat.
Patent DE-2448629-A1 (DE)
Title: Differential pressure measuring cell - has two chamber halves arranged mirror symmetrically with each other
Inventor: NUERNBERGER WILHELM DIPL ING
IPC: G01L13/02
Filed: 1974-10-11
Abstract: The measuring cells are made of glass, and a diaphragm is stretched between the two halves. Pressure channels lead to them, and an electric pickup reproduces the diaphragm deflection, function of the pressure difference. In order to support the diaphragm in case of overloads, the opposite surfaces of the two half-chambers are spherical. The diaphragm (1) is made of glass and is soldered or welded to the edges of the chamber halves (3). Resistance elements (8) operating as strain gauges are provided on its surface.
Patent DE-2449224-A1 (DE)
Title: Continuous strand cigarette making machine - feed chamber for rectangular section strand has adjustable suction slot below
Inventor: PETERSEN KURT-ECKHARD
IPC: A24C5/18
Filed: 1974-10-16
Abstract: A continuous strand cigarette making machine has the tobacco strand formed into a rectangular cross section flow inside a correspondingly shaped chamber between two base plates (42, 43) and two upper blocks (28) with a gap (41) between the plates communicating with a suction chamber (52) underneath, and a larger gap (2) between the blocks, both gaps being on the centre line of the tobacco chamber. The two plates have slots (49) across them for securing screws so that the width of the gap (41) can be adjusted. The inner edges (44, 46) may alternatively slope inwards, or outwards, or may be radiused, so as to vary the shape of this gap (41).
Patent DE-2459829-A1 (DE)
Title: Limited pressure gynaecological forceps - having knurled head adjusting screw between handle grips (SW140676)
Inventor: SIPLI WOLFGANG DR MED
IPC: A61B17/44
Filed: 1974-12-18
Abstract: The device provided to limit the pressure applied to the head of the foetus is a knurled head screw (3) which can be adjusted to regulate the pressure. A centrally located pin is fixed rigidly to a lug and inserted in an eyelet open on one side only, thus holding both forcep arms (1, 2) securely together whilst permitting rapid simultaneous opening and closing of the forceps. The forceps can be easily modified using a ratchet lock system to fix the arms in a required position. The forceps can be easily manipulated and are simple to sterilize.
Patent DE-2460747-A1 (DE)
Title: Sheet feeding for rotary printing machines - features measuring head with two photo sensors to effect servo motor displacement
Inventor: FISCHER HERMANN
IPC: B65H9/20
Filed: 1974-12-21
Abstract: Introduction of sheets into sheet-fed rotary printing machines where the sheets are moved to the front marks over the table with a number of conveyor belts which go round in the feed direction while the introduction mechanisms reciprocate transverse to the feed direction. Sideways in the introduction sheet (11) is a measuring head (17) with two photo-sensors. A side difference determined between the sheet side edge and a reference line lying between the photosensors serves as a control parameter for a servo-motor side displacement at the auxiliary gripper shaft (12) and/or the feed drum (8).
Patent DE-2500178-A1 (DE)
Title: Flocking of threads yarns and the like - threads guided on adjacent parallel planes through electrostatic field
Inventor: WIRTH ROLAND
IPC: D02G3/34
Filed: 1975-01-03
Abstract: Arrangement for flocking threads, yarns and the like by guiding a number of threads lying parallel to each other through an electrostatic field. One thread plane lies adjacent to at leat another thread plane and the position of each thread of one plane is on a perpendicular between two adjacent threads of a neighbouring thread plane. The flocking device consists of a frame in which are two high tension surface electrodes arranged opposite each other.
Patent DE-2500539-A1 (DE)
Title: Metal coating plastic articles - by spraying with molten iron then adhesive and finally molten zinc
Inventor: PUETZ ALBAN
IPC: C23C4/08
Filed: 1975-01-08
Abstract: A metal coating is applied to plasti carticles by coating the latter with an adhesive, curing it and spraying on molten zinc at 1,000 degrees C under pressure. The adhesive layer softens and partly mixes with the zinc. After cooling >=1 further zinc layer is applied as a bonding coat; when this has cooled another metal is opt. sprayed on at above its m.pt. to produce an outer layer. In the novelty, molten iron is applied as a very thin coating before the adhesive. A better bond is obtd. and the metal coating is easily repaired by abrading and renewed spraying.