baber/WOPTO huggingface dataset:
Patent GB-1413879-A (GB)
Title: Bicyclic olefinic oxyalkylenes and siloxane-polyoxyalkylene copolymer derivatives thereof
IPC: C08G18/00
Filed: 1973-01-15
Abstract: 1413879 Oxyalkylated norbornenes; silicone block copolymers; polyurethane foams UNION CARBIDE CORP 15 Jan 1973 [17 Jan 1972] 2114/73 Headings C3R and C3T [Also in Division C2] Novel norbornene derivatives of the formula wherein Y denotes H or C 1-4  alkyl, Y<SP>1</SP> denotes H or C 1-12  alkyl, R<SP>0</SP> denotes a divalent hydrocarcon group free of aliphatic unsaturation, a is 0 or 1, R<SP>00</SP> denotes an alkylene group of at least two carbon atoms, b is at least 1, R<SP>000</SP> denotes-R, -OCNHR, -OCR<SP>1</SP> or -OCOR<SP>1</SP>, R denotes H or a monovalent hydrocarbon group free of aliphatic unsaturation and R<SP>1</SP> denotes a monovalent hydrocarbon group free of aliphatic unsaturation, are prepared by alkoxylating compounds of the formula followed where necessary by suitable conversion of the terminal OH group, e.g. by reaction with isocyanates to provide urethane groups, or by reaction with alkali metal alkoxides and then alkyl halides to provide ether groups. In examples Y and Y<SP>1</SP> denote H, R<SP>0</SP> denotes methylene, a is 0 or 1, R<SP>00</SP> denotes ethylene or a mixture of ethylene or propylene, b is variously 7À8, 48À2, 49À5 and 56, and R<SP>000</SP> is H or methyl. The above compounds may be further reacted with hydrosilanes containing at least one unit of the formula and other units of the formula Z p SiO 4-p/2  in the presence of a platinum-containing catalyst to provide block copolymers consisting of units of the formula (wherein m denotes 0, 1 or 2, n denotes 1 or 2, m+n denotes 1, 2 or 3, and X denotes a monovalent hydrocarbon group free of aliphatic unsaturation), and units of the formula (wherein Z denotes a monovalent hydrocarbon group free of aliphatic unsaturation and p denotes 1, 2 or 3). The above block copolymers function as foam stabilizers in polyurethane foams based on polyether or polyester polyols, polyisocyanates, conventional catalysts and blowing agents. An example uses a glycerolethylene oxide/propylene oxide reaction product, tolylene diisocyanate, water, dimethylethanolamine, CCl 3 F and stannous octoate in conjunction with two alternative block copolymer foam stabilizers to produce one-shot foams.
Patent GB-857251-A (GB)
Title: Improvements in and relating to mineral mining machines
Inventor: WELLS GEORGE MAYES
IPC: E21C35/08
Filed: 1958-01-22
Abstract: 857,251. Controlling mining machinery by radiation. COAL INDUSTRY (PATENTS) Ltd. Jan. 21, 1959 [Jan. 22, 1958], No. 2167/58. Class 40(3). [Also in Group XXI] A mineral-cutting or drilling machine is, maintained in a given strata by directing electromagnetic radiations 10 into the strata through which the machine is cutting from one or more sources 4 mounted in the cutting head of the machine and steering the head by suitable known means to maintain at a constant level the amount of back-scatter of the radiation by the mineral as recorded by suitable instruments 6 also mounted in the head. Radiation sources 4 are spaced from geiger counters 6, which are shielded from all but reflected radiations 10 by steel plates 7, 8.
Patent GB-379970-A (GB)
Title: Spectacle frame arms
IPC: G02C5/16
Filed: 1932-01-25
Abstract: 379,970. Spectacles. WAWRZYNOWICZ, E., 8, Rhinowerstrasse, Rathenowon-Havel, Germany. Jan. 25, 1932, No. 2291. Convention date, Jan. 9. [Class 97 (i).] A resilient spectacle side is formed of a tube consisting of a wire network formed of a number of wires each repeatedly interlinked with its neighbour on either side. The Figure shows the network in the flat state, which can be converted into a tube by the addition of a single spiral wire. The tube may be slightly twisted. The wires may be coloured, and alternated with threads of celluloid or the like. A number of superimposed tubes may be employed.
Patent GB-539706-A (GB)
Title: Molded article and process of production
IPC: D21J3/00
Filed: 1940-02-06
Abstract: 539,706. Moulded paper pulp. FEDERAL ELECTRIC CO., Inc. Feb. 6, 1940, No. 2293. Convention date, Feb. 6, 1939. [Class 96] [Also in Group V] Gramophone turntables, protective guards, trays, sheet materials &c. are moulded from fibrous pulps, e.g. paper stock by mixing the felted fibres with a binder comprising the complex resinous material remaining after pine wood pitch has been extracted to remove turpentine, resin &c. The melting point of the pitch extract may be raised by forming a condensation product therefrom as described in U.S.A. Specification 2,115,496 or by adding metal oxides or hydroxides, e.g. zinc oxide. The mixture is preferably defiberised in known manner by beating in a Hollander to which the binder and a wetting or dispersing agent is added. A mixture comprising 14 lbs. kraft cuttings, 18 lbs. formaldehyde-hardened pitch extract, 11¢ ozs. Paris Black &c. is specified and is adjusted to a Ph of 4.5 by addition of alum. The mixture is built up to the required form by immersing a bell-shaped vessel 18 supporting a wire-mesh screen 20 in the pulp solution contained in a vessel 10 and applying suction through a conduit 16 to draw the fibres through the screen and deposit the fibres thereon. The built-up shell is then removed, dried and moulded between dies 24, 26 which may be heated, e.g. to, 300-315‹F. at 1500-2000 lbs. per sq. inch pressure.
Patent GB-284225-A (GB)
Title: Process for the determination of voltage equivalents of electric currents at varying potentials
IPC: H01J9/42
Filed: 1928-01-24
Abstract: 284,225. Egyesult Izzolampa Ús Villamossagi Reszveny - tarsasag. Jan. 24, 1927, [Convention date]. Drawings to Specification. Current and pressure meters. - Measurements made on a circuit of fluctuating voltage are corrected for voltage variations by calculation from the readings of an ampere-hour meter connected in series with a resistance across the mains, so as to read volt-hours, and an energy meter having both its pressure and current windings connected in series with resistances across the mains, so as to integrate the square of the voltage. The life of incandescent lamps, R÷ntgen tubes, &c. at a constant standard voltage may similarly be deduced from observations made on a circuit of fluctuating voltage.
Patent GB-228537-A (GB)
Title: Improvements relating to writing pens
IPC: B43K1/00
Filed: 1925-01-26
Abstract: 228,537. Stassano, E. Jan. 29, 1924, [Convention date]. Void [Published under- Sect. 91 of the Act]. Pens.-A pen-nib, which may be formed as part of a holder, is made of celluloid or similar material. The usual manufacturing operations are employed, and bosses for increasing the. rigidity of the nib may be provided.
Patent GB-652882-A (GB)
Title: Improvements in and relating to pulse signalling systems
IPC: H04B14/02
Filed: 1948-08-05
Abstract: 652,882. Pulse discriminating circuits; pulse modulation systems. GENERAL ELECTRIC CO., Ltd., and LEVY, M. M. Aug. 5, 1949, No. 2300/48. [Classes 40 (v) and 40 (vi)] In a pulse signalling system in which intelligence is conveyed by recurring time modulated pairs of pulses of constant time spacing the transmitter, comprises means for producing from the modulated carrier, two corresponding side - bands which are spaced apart and which are used as the transmitted signal. Fig. 4 shows a receiver circuit for such a system in which the received signal has a waveshape as shown in Fig. 2. The positive-going input pulses at terminal T1 are combined with a delayed signal of the same polarity from the delay network N1 which has an overall delay equal to the spacing between successive peaks of the incoming signal, to produce a peak of enhanced amplitude, Fig. 5, curve K. This voltage is inverted and delayed by the shorted delay line N2 to produce a waveshape as shown at Fig. 5, curve L. The resultant as shown at Fig. 5, curve M, is applied to valve V2 which allows only signals above the level shown at C3 in Fig. 5 to pass and shockexcite the tuned circuit LC. The steep trailing edge T (Fig. 5) produces a larger and steeper pulse from the circuit LC than any other of the pulses and may be readily selected, and its intelligence extracted in a demodulator circuit.
Patent GB-480791-A (GB)
Title: Improvements in or relating to electric resistance welding
IPC: B23K11/24
Filed: 1936-08-31
Abstract: 480,791. Electric welding hydraulic presses. SOUDURE ELECTRIQUE. Aug. 31, 1936, No. 23798. Convention date, Aug. 30, 1935. [Class 83 (iv)] [Also in Group XXIX] In an electric resistance welding apparatus, particularly for welding aluminium alloys, in which the pressure is modified at the moment of the approaching and forging of the weld, an incompressible fluid, confined within a closed space bounded by a movable member connected to the electrode, is subjected through a number of independently controlled valves to any or several of a series of different pressures. In one method of operation the valves may be opened simultaneously the speed of operation being such that they remain open for such a limited time that the resulting pressure has a value intermediate the applied pressures. A cam shaft 6, which is driven by a motor 1 through reducing gear and a one revolution ratchet or electromagnetic clutch 3 controlled by a pedal 4, carries a cam 7 for operating a valve 8 for supplying air to a pipe 11, which communicates by pipes 14, 15 provided with adjustable pressure reducing devices 16, 17, with cylinders 12, 13. The pistons 18, 19 operate on liquid in cylinders 20, 21, which communicate with the cylinder 29 of the electrode 30<1> through cam-operated valves 24, 25 one of which may be closed when the other is open. The electrode is returned by a spring 31 and the pistons by air passing through pipe 10. Several units such as 12, 18, 20, 24 may be used. Welding current is supplied to the transformer through three cam-operated contacts 35, 36, 37 with resistances 38, 39 in shunt, round the contacts 36, 37. The contacts are closed simultaneously, but are opened successively so that the parts are kept at a temperature below welding temperature, but sufficient for the forging operation.
Patent GB-982792-A (GB)
Title: Improvements in or relating to lined cartons
Inventor: BALL STANLEY
IPC: B65D5/46
Filed: 1962-01-23
Abstract: 982,792. Lined cartons; container closures. HUGH STEVENSON & SONS Ltd. Feb. 12, 1963 [Jan. 23, 1962], No. 2492/62. Headings B8P and B8T. A container for fluid material comprises an inner container made of powder or liquid proof material such as synthetic plastics material in the form of a hollow rectangular body and having a neck with a cap 3 and an outer container formed from single thickness cardboard or fibreboard or from a double-backed corrugated paper blank, Fig. 3, having an extension 14 on the side panel 9 which has an aperture 18 for receiving the said neck 3 when the inner container is disposed within the outer casing and extensions 26, 27, 21 and 15 on side panels 11, 12, 10 and extension 14, respectively, which interlock to close the top of the carton. The extension 26 has further extensions 30, 31 forming handles which pass through slits 19, 20 when the outer casing is closed. In one embodiment, Fig. 4, the neck is positioned in one corner of the top of the inner container to come through the aperture 18 in the top sloping panel of the outer carton, the handles protruding from the centre of the top panel. In a second embodiment, the neck is positioned in the centre of one of the top edges to come through a similarly positioned aperture in panel 14 in the outer casing, the handle protruding from between the panels 14 and 9.
Patent GB-302517-A (GB)
Title: Improvements in plate and dishwashing machines
IPC: A47L15/06
Filed: 1928-01-26
Abstract: 302,517. Davidson, F. L. Jan. 26, 1928. Plates, dishes, and the like, washing. - The dishes are supported in racks 20, 20a in a container 11 carrying liquid and are washed by means of rotary splashers 13 and a spray tube 21, the latter being provided with a valve to admit liquid and being connected to the lid of the container so that the valve is open only when the lid is closed. The tube 21 is preferably of the form shown in Fig. 3. The dish racks are. supported in the container by hollow rods 18 which are engaged at their ends by screws passing through perforations in the walls of the container. The height. of the liquid in the container is determined by an overflow pipe 39 having a perforation 42, the pipe being located within a sleeve 36 which communicates with an outlet 31 from the base of the container. The pipe 39 is formed at its lower end as a valve engaging a valve seat 33, so that on raising the valve the container is drained of liquid.
Patent GB-793702-A (GB)
Title: Hydraulic weight sensing device for load indicating apparatus
IPC: B66C13/16
Filed: 1955-01-28
Abstract: 793,702. Weighing apparatus. MARTINDECKER CORPORATION. Jan. 28, 1955 [Jan. 29, 1954], No. 2682/55. Class 143 In a hydraulic weighing device the pressure generating unit comprises a fluid filled chamber C between a plate 14 and a flexible diaphragm 16, a plate 15 in contact with the diaphragm, an element 21 connected with plate 14 by bolts or studs 26 which are slidable through holes 15c in plate 15, and an element 20 connected with plate 15 by bolts 25 which are slidable through holes 14c and 17a in plate 14 and a diaphragm sealing ring 17. Thus movement apart of elements 20, 21 generates pressure in chamber C which communicates with a gauge (not shown) through conduits 35, 11. Bolts 25, 26 are provided with spacer sleeves 29, 30 and rubber cushioning rings 31, 32. As described in connection with Fig. 1 (not shown) the unit is connected between a fixed base member and an arm extending tangentially from a snubbing drum to which is anchored one end of a cable forming part of a well drilling apparatus. In a modification (Fig. 5, not shown) the elements 20, 21 are provided respectively with an eye and a hook which connect two parts of a running or anchored line. In other modifications (not shown) the unit is incorporated in the pulley tackle system of a crane or derrick or in a torque indicator.
Patent GB-142444-A (GB)
Title: Improvements in the starting of internal combustion engines
IPC: F01L13/00
Filed: 1920-01-29
Abstract: 142,444. Blache, H. H. April 26, 1919, [Convention date]. Starting; reversing. - In a multicylinder engine in which the valve levers 3 are mounted on a stationary shaft 4 along the top of the cylinders and are actuated from an axially adjustable cam-shaft 7, the compressed-air starting - valves are arranged to be set into or out of operation in groups. In the form shown, the stem 10 of each starting valve 8 is adjusted in length for starting by compressed air admitted to a cylinder 9 containing a piston, or by means of a spring or wedge device, and the devices for effecting this adjustment are arranged for actuation in groups. The devices are arranged so that the handle which shuts off the starting-air from a particular cylinder also starts the fuel pump for that cylinder. The valve-rods 5 are pivoted upon the levers 3 and movable away from the cam-shaft 7 to allow the longitudinal adjustment for reversing or for starting in either direction. The Specification as open to inspection under Sect. 91 (3) (a) states also that the starting-valves may be set into or out of operation singly. This subject-matter does not appear in the Specification as accepted.
Patent GB-1533977-A (GB)
Title: Laser engraving of surfaces
IPC: B23K26/00
Filed: 1975-01-22
Abstract: 1533977 Engraving CROSFIELD ELECTRONICS Ltd 19 Jan 1976 [22 Jan 1975 26 March 1975] 2839/75 and 12763/75 Heading B6J To reduce the variation in the widths of holes or grooves excavated in a surface by a laser beam whose direction of polarization is controlled by a modulating signal, the polarized beam is applied to the surface through an analysing polarizer formed with a central aperture through which the central portion of the beam passes to the focusing lens regardless of its polarization. As shown Brewster windows 11 provide a polarized output from CO 2  laser 10. The electro-optic modulator 12 (e.g. of Gallium arsenide or Cadmium telluride) increases the orthogonal vector of polarization with respect to the vector in the original plane of polarization when a modulating voltage is applied at 13. The beam is amplified in a laser amplifier 14 and passed through Brewster angle polarizers 16 and 18 of germanium and of the transmission kind. Apertures 19 permit the central part of the beam to pass through focusing lens 20 to the surface 22 to be engraved. The method is applicable to the production of gravure printing surfaces.
Patent GB-1397331-A (GB)
Title: Production of foamed plastics material
IPC: B29C44/46
Filed: 1972-01-21
Abstract: 1397331 Foam-producing apparatus VITAFOAM Ltd 29 March 1973 [21 Jan 1972] 2906/72 Heading B1C A device for supplying foamable material, for use with a foamed material slabstock producing apparatus of the type including a mixer head 12 and an inclined conveyor 10, comprises a container 11 having relatively inclined walls 13, 14, forming a (V) with wall 13 extending higher than wall 14, a ramp 16 inclined downwardly from the upper edge of wall 14, side walls 15 (only one shown) and inlet means 19, which may comprise one or more apertures in the container, for connection to head 12. A baffle plate 17 may be provided which stops short of wall 14 to create a restricted passage 18. Walls 13, 14 may be hinged together as may wall 14 and ramp 16 so as to be able to vary the configuration. The ramp may be provided with a flexible plate overlying its junction to wall 14, the plate having an adjustably convex form across the width of the junction so that less foam passes over the central region, thus minimising the "domed" effect of the product.
Patent GB-514604-A (GB)
Title: Magnet system
IPC: H04R9/02
Filed: 1938-01-29
Abstract: 514,604. Telephone instruments. DEUTSCHE EDELSTAHLWERKE AKT.-GES. Jan. 29, 1938, No. 2910. Void. Convention date, Jan. 29, 1937. [Class 40 (iv)] [Also in Group XXXV] In a magnet system built up of separate components, a ferromagnetic plastic is used to obtain a low "transitional resistance " or reluctance at the joints. In the annular gap loud. speaker magnet shown, layers 2 of the plastic are placed between the surfaces of the permanent magnet 1 and the soft iron end plates 3. The whole is compressed in a press until the central pole-piece 5 is brought to the proper relationship with the upper pole plate 3, whereupon the assembly is fixed together by' the bolts 4. The surfaces of the two parts to be joined may be roughened. The plastic may consist of soft iron powder, obtained by precipitation from iron carbonyl, made into a paste with water glass, tragacanth, rubber, shellac or cement, or made into a springy, rubber-like form by admixture with a moulding powder and stamped to the desired shape from large sheets. The invention is applicable to permanent or electromagnets.
Patent GB-620904-A (GB)
Title: Improvements in or relating to layers formed of finely divided particles and methodsof forming such layers
IPC: H01J9/22
Filed: 1947-01-30
Abstract: 620,904. Cathode-ray tubes; luminescent materials. RAULAND CORPORATION. Jan. 30, 1947, No. 2913. Convention date, May 8, 1946. [Class 39 (i)] A luminescent or dark trace screen or a mosaic screen comprises a thin layer of finely divided particles bound together by glass which has solidified after being in the molten state and stripped from its original supporting surface. In one example, finely powdered glass is mixed with metal particles and the mixture deposited through a silk screen on to a refractory plate. The plate is furnaced and after cooling, the metal-embedded glass layer is stripped off and mounted in a suitable framework. Similarly, fluorescent powder is mixed with powdered glass and the plate heated to the melting point of the glass. Air or water settling may also be used to deposit the mixture on the refractory plate. The screen can be given any desired shape or pattern and may be part spherical for use, e.g. with a Schmidt optical system tube. Luminous lettering, framing or patterning may be applied in different colours. Metallic oxides or salts are incorporated in the binder in the molten condition to render it semi-conducting.
Patent GB-1368688-A (GB)
Title: Process and device for the continuous determination of water in gases
IPC: G01N31/16
Filed: 1972-01-21
Abstract: 1368688 Determining water in gas CHEMISCHE WERKE HULS AG 21 Jan 1972 [23 Jan 1971] 2957/72 Headings G1B and G1S In a process of continuously determining the water content of a gas by means of coulometric titration by the dead-stop method with Karl- Fischer reagent as titration liquid, the titration liquid in the titration system is caused to circulate around a closed loop by means of an anhydrous gas containing at least 5% by volume of molecular oxygen, which gas is fed in continuously. The oxygen-containing gas may be dry air. Apparatus comprises a feed section 1 with inlet 4 and outlet 9 for reagent, inlet 5 and outlet 11 for the gas under test, inlet 8 for the dry oxygen-containing gas and indicating and generating electrodes 6, 7 of platinum wire.
Patent GB-241074-A (GB)
Title: Improvements in sugar containers or servers
IPC: A47G19/34
Filed: 1925-02-03
Abstract: 241,074. Sharp, T. Feb. 3, 1925. Sugar-holders. - Relates to sugar containers or servers of the kind comprising a receptacle with a central vertical discharge tube extending down inside to within a short distance of the bottom, through which a measured quantity is discharged from a well when the receptacle is inverted. The glass or like container a has an internal concave bottom with a small central well e and three projections d or which rests the conical or flanged lower end c of the central tube b. The conical cover h screws on to the upper end of the container and has an opening g at the top with a flange k to engage within the top end of the tube b. An aperture j with a screw or other cover is provided in the cover h for filling purposes.
Patent GB-850438-A (GB)
Title: Method of producing sodium tetraborate tetrahydrate
IPC: C01B35/12
Filed: 1959-01-28
Abstract: Sodium tetraborate tetrahydrate (Na2B4O7.4H2O) is prepared by forming a solution containing at least 28% of the decahydrate (borax), seeding it with crystals of the tetrahydrate and maintaining the solution at at least 57.5 DEG C. until the desired tetrahydrate crystallizes out.  The initial decahydrate solution may be prepared by dissolving the borax in water or by slightly heating damp borax whereby it dissolves in its water of crystallization. The amount tetrahydrate employed as seed may be from 0.01 to 0.04 and may be in the form of natural kernite.  The seeded solution may be heated from 40 to 70 hours at 80 to 100 DEG C.  The tetraborate pentahydrate may crystallize out but this is re-dissolved on further heating and the desired tetrahydrate is then formed.