baber/WOPTO huggingface dataset:
Patent GB-1442586-A (GB)
Title: Ion sources
IPC: H01J27/02
Filed: 1975-02-10
Abstract: 1442586 Boron oxide INTERNATIONAL BUSINESS MACHINES CORP 10 Feb 1975 [23 Feb 1974] 5526/75 Heading C1A [Also in Division H1] The preparation of a substance containing boron oxide for use as the source material in an ion source (see Division H1) comprises heating boron nitride particles 1 to 3 mm. in diameter in an oxygen flow for 45 minutes at 900‹ to 1100‹ C. followed by similar heating, also for 45 minutes, in a nitrogen flow for stabilization. The nitride need only be 25-75% oxidized. Instead of pure boron nitride, a commerically available sinter of boron nitride and SiO 2  can be subjected to identical treatment.
Patent GB-525747-A (GB)
Title: Fire extinguishing liquid
IPC: A62D1/00
Filed: 1940-03-28
Abstract: 525,747. Fire - extinguishing. BAKER, W. March 28, 1940, No. 5593. [Class 47 (ii)] A fire-extinguishing liquid is composed of common salt, sal ammoniac and water in the proportion of common salt 11b., sal ammoniac ¢lb. mixed thoroughly with 3 pints of water until no sediments are visible.
Patent GB-718697-A (GB)
Title: Steering gear for motor vehicles
IPC: B62D7/16
Filed: 1951-03-08
Abstract: 718,697. Toothed gearing BAYERISCHE MOTOREN WERKE AKT.-GES. March 8. 1951 [July 22, 1950], No. 5670/51. Addition to 715,810 [Group XXXI]. Class 80 (1) An improvement in the vehicle steering arrangement of the parent Specification consists in that two projecting arms 12, 14 for connecting to the short and long track rod sections respectively are secured to the lower end of one of the main rotatable spindles 5, to the upper end of which is secured a bevel gear segment 1 in mesh with a bevel pinion 2 on a steering shaft 3. The spindle 5 and bevel gearing 1, 2 are enclosed in a casing 6 with a removable cover 7.
Patent GB-1271066-A (GB)
Title: Improvements in or relating to double-row self-aligning rolling-element radial bearings
IPC: F16C33/60
Filed: 1970-02-06
Abstract: 1,271,066. Bearings. POZNANSKA FABRYKA KOZYSK TOCZNYCH. 6 Feb., 1970 [6 Feb., 1969], No. 5716/70. Heading F2A. A self-aligning double-row radial rolling bearing assembly comprises an external ring 1 having a concave raceway and provided with a ring 2 on the raceway disposed between the rows of rolling elements 8 in order to limit the degree of displacement of the outer ring to a predetermined range. The ring is a snap-fit in a groove 3, and is provided with cut-outs to facilitate removal (Figs. 6, 7, not shown). The rolling elements may be barrel rollers or balls. A cage, partially supported by a removable collar (Fig. 2, not shown), may be provided. The bearing may be sealed.
Patent GB-779481-A (GB)
Title: Glass composition
IPC: C03C13/00
Filed: 1956-02-24
Abstract: 779,481. Glass compositions. L. O. F. GLASS FIBERS CO., Feb. 24, 1956 [Jan. 26, 1956], No. 5743/56. Class 56 A glass composition for the production of glass fibres by either mechanical or gas attenuation operations and having softening points and working temperature ature appreciably below 2000‹F., consists of:-  The glass fibres produced have a high resistance to chemical attack. Refractory clay melting apparatus may be used in place of platinum or other scarce metals.
Patent GB-962254-A (GB)
Title: Improvements in web splicing apparatus
IPC: B65H19/10
Filed: 1961-02-16
Abstract: 962,254. Feeding webs. P. C. RIEGGER. Feb. 16, 1961 [Feb. 20, 1960], No. 5771/61. Heading B6B. A web-splicing apparatus is of the kind in which an operative supply roll and a replacement supply roll are mounted for rotation, such that the replacement web can be spliced to the operative supply roll upon running out of the operative web. An abutment is on one side of the replacement roll and when splicing is to be effected the replacement roll is set into rotation and the abutment engages a member for setting the cutting and splicing means into operation. A replacement web roll 3 is accelerated by a roller 8, such that its peripheral speed equals the linear speed of a web 7, unwound from an expiring roll, prior to splicing the two webs. A stop 4, positioned in an opening 16, Fig. 2 (not shown), in a plate secured to one side of the replacement roll, actuates a trip for a splicing roller 12 and knife 13 for severing the end of the expiring web. The leading end 5 of the replacement web carries an adhesive covering strip. The web ends may be secured by one or two strips, Figs. 1A, 1B, 1C (all not shown). In a modification, a stop 4, Fig. 3, engages a contact 17 which energizes an electromagnet 18 which actuates a detent lever 19 which releases a knife 13. The knife 13 co-operates with a counter-bar 20<SP>1</SP> to cut the expiring web. Actuation of a hand lever 20 in the direction F causes an arm 23 to rock an arm 24. The arm 24 through a spring 25 leaves the knife-carrying lever 26 in position ready for operation upon subsequent energization of the electromagnet 18. The cam 24 carries a splicing brush 12<SP>1</SP> which splices the expiring web to the replacement web. A drive roller 29 is rocked into engagement with the roll 3 by an arm 27 engaging a spring 28 to accelerate the roll 3. An adhesive splicing strip 34, Fig. 5, may be secured to the roller 12 by suction or adhesive applied to areas 35.
Patent GB-201864-A (GB)
Title: Improvements in apparatus for treating cloth
IPC: D06B23/00
Filed: 1923-02-28
Abstract: 201,864. Hunt & Moscrop, Ltd., and Hunt, E. W. Feb. 28, 1923. Piled materials, treating with fluids.-Treating apparatus in which cloth in rope form is piled and passed through a J- or U-shaped stack as described in Specifications 774/08 and 176,306, is provided with a retaining door, gate or shutter D placed in the inclined part B of the stack or shoot A so as positively fto close the passage while the piling-door stack is first being charged with material.
Patent GB-199768-A (GB)
Title: Improvements in and relating to forming cartons and boxes
IPC: B31B5/74
Filed: 1922-02-28
Abstract: 199,768. White, A. D., and Jacob, White, & Co., Ltd. Feb. 28, 1922. Machines for making boxes. The end flaps of boxes or cartons are secured after pasting or glueing by passage over a heated surface, the boxes &c. being carried by abutment members 9 on arms 5 extending radially outward from a cylindrical member 1 pivotally mounted at 2, and the heated surface 12 forming part of the peripheral surface of a cylinder coaxial with the axis 2. The members 9 are carried by plungers 10 located in sockets 6 in the arms 5 and pressed outwards by springs 11 so that the members 9 are resiliently supported and force the flaps against the surface 12 ; each member 9 is guided by pins 8 thereon engaging slots in flanges 7 at the end of the socket 6. The surface 12 may be provided with electrical heating elements 14 which may be arranged adjacent one end of the surface 12 so that the temperature decreases from that end to the other.
Patent GB-1445526-A (GB)
Title: Colour photographic silver halide light-sensitive materials
IPC: G03C7/26
Filed: 1974-02-11
Abstract: 1445526 Colour photographic silver halide material FUJI PHOTO FILM CO Ltd 11 Feb 1974 [9 Feb 1973] 05987/74 Heading G2C A light-sensitive photographic material comprises a support bearing in at least one layer at least one silver halide emulsion, at least one hydroquinone of the formula:- where R<SP>1</SP> is optionally substituted alkyl or a precursor of said hydroquinones capable of producing said hydroquinone by hydrolysis in an aqueous alkaline solution, and at least one twoequivalent α- acylacetamide yellow-forming coupler, or a bis derivative thereof, of the formula:- where Y <SP>1</SP> is an aliphatic, aromatic or heterocyclic group; Y<SP>2</SP> is an aromatic or heterocyclic group; and X is acyloxy, aryloxy, arylthio, heterocyclic thio, cyclic acylsulphonylamino or a group of the formula: - where Z completes a heterocyclic ring. The silver halide, the yellow-forming coupler and the hydroquinone are all normally incorporated in the same layer, but one or more of the components may be in different layers. The hydroquinone precursor may have one of the formulae:- where R<SP>2</SP> is alkyl. 6,6'-dihydroxy-4, 4, 4', 4', 7, 7'-hexamethyl-bis-2, 2'-spirochromane is used in Examples 4 and 5 in the blue-and green-sensitive silver halide emulsion layers respectively.
Patent GB-179354-A (GB)
Title: Improvements relating to straw trussers and like machines
IPC: A01D39/00
Filed: 1921-02-23
Abstract: 179,354. Robinson, J. Feb. 23, 1921. Sheafing or binding apparatus.-To prevent straw and dirt from obtaining access to the knotting- mechanism of a straw trusser or a self-binder, vertical side plates e are secured by screws g to the knotter table a on each side of the knotter. The top ends of the plate e are secured as indicated at h to the board b at the upper end of the table a. A flanged lid i, hinged on the board b, covers the space between the plates. Distance-pieces l extend between the plates e.
Patent GB-171663-A (GB)
Title: Process for the manufacture of enamelled writing tablets
IPC: C23D5/00
Filed: 1921-02-23
Abstract: 171,663. Zulauf, R. Nov. 13, 1920, [Convention date]. Writing-tablets. - An enamel-covered writing- tablet is made by coating an iron sheet with an enamel of the usual composition and then stoving thereon a second coating of a matt or dull enamel, prepared by grinding a fused enamelling mixture of ordinary composition with an excess of white clay, for example 15-22 per cent instead of the usual 8-10 per cent, and an appropriate amount of a colouring-agent.
Patent GB-493143-A (GB)
Title: An improved arrangement for the interchange of energy between direct current and alternating current mains
IPC: H02M1/20
Filed: 1937-03-02
Abstract: 493,143. Converting. SIEMENSSCHUCKERTWERKE AKT.-GES. March 2, 1937, No. 6232. Convention date, March 2, 1936. [Class 38 (ii)] In a moving contact converter employing a synchronously varied current-limiting impedance in series with the contacts, a change in the direction of energy transfer is accompanied by a change in the phase relationship between the voltage and the instant of contact actuation. When rectifying, current is transferred from one phase to the next after the instant in which the voltages are equal in these phases, but in inverter operation this condition is reversed; the time interval in each case is preferably variable for modulation purposes. Automatic regulation characteristics may at the same time be changed from constant voltage regulation when rectifying, to constant current regulation when inverting. Two sets of contacts, operated like poppet valves by camshafts, may be provided, one for rectifying and the other for inverting, and an axially slidable cam-shaft may selectively operate either; or a single set of contacts may be operated selectively by one of two cam-shafts by rocking a lever carrying both. In an arrangement comprising separate sets of constantly operating contacts arranged respectively for converting and inverting, switching means may connect the D.C. circuit to the set desired. To vary the aforesaid phase relationships, the individual contacts may be interchangeably connected to the phases of the A.C. mains. The variation of current-limiting impedance in each circuit may be varied at the time of changing the phase relationship referred to, by means of supplementary windings on the choke coils on which the current is varied. Fig. 6 shows a system wherein a rotary contact 2, co-operating with fixed contacts 3 connected to the separate phases through choking coils 8, is driven by a synchronous motor, the stator 10 of which can be moved to effect the change in phase relationship desired, when the energy transfer direction changes, by means of a relay 13. This operation is effected by a polarized relay 15, and is accompanied by actuation of a switch 16 to change the current in biassing windings on the chokes 8. An automatic regulator 17 controlling the field of the motor serves to regulate the modulation of the converter in dependence on load current.
Patent GB-557229-A (GB)
Title: Improvements in or relating to electrically-conductive inks
IPC: C09D11/00
Filed: 1942-05-08
Abstract: 557,229. Ink. BRITISH TABULATING MACHINE CO., Ltd. (International Business Machines Corporation). May 8, 1942, No. 6268. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 14, 1942.] [Class 146 (iii)] An electrically conductive ink is composed of graphite having an average particle size of about two and one-half microns, an inorganic filler, such as kaolin, a plasticizer, which may be a hygroscopic polyhydric alcohol, such as glycerine, and a volatile medium, such as alcohol.
Patent GB-622049-A (GB)
Title: Improvements in or relating to compressors
IPC: F04D21/00
Filed: 1947-03-06
Abstract: 622,049. Axial - flow compressors. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 6, 1947, No. 6365. Convention date, Nov. 23, 1943. [Class 110(i)] Gas enters the rotor blades at a supersonic velocity relative to the blades, which have sharp inlet edges and are so shaped as to provide a compression shock to the gas in a direction substantially normal to its direction of flow. The compression shock converts velocity energy into pressure energy. The rotor blades 17 are approximately diamond shape in crosssection, with sharp inlet and outlet edges, and the compression shock occurs at the region 23 of minimum passage width, extending between the leading edge 21 of each blade and the apical portion 22 of the preceding blade. Fixed diffuser vanes 26 and inlet guide vanes 16 are provided, the latter being preferably of aerofoil section.
Patent GB-1451286-A (GB)
Title: Method and apparatus for the measurement of fluid-flow velocity
IPC: G01P5/00
Filed: 1974-02-12
Abstract: 1451286 Measuring fluid-flow velocity profiles F HOFFMANN - LA ROCHE & CO AG 12 Feb 1974 [16 Feb 1973 12 Dec 1973] 06405/74 Heading G1G [Also in Division H4] The flow-velocity profile of fluid carrying wavescattering centres is measured by transmitting first and second wave-energy pulses into the fluid, detecting respective first and second sets of echo waves reflected by the scattering centres, and combining signals representative of the first set with those of the second set to generate a signal whose amplitude variation with time represents the flowvelocity profile. In the Fig. 1 system, ultrasonic transducer 3 is operated in a pulse-echo mode to determine the velocity profile across a duct 1 containing a soundscattering liquid (e.g. blood). Echoes are amplified at 5, limited at 6, frequency-converted in a mixer 7 fed also by a reference oscillator 8, then applied via a side-band-extracting filter 9 to a multiplier 12 over two paths. One path provides at 10 a delay equal to the pulse repetition period: the other includes a phase shifter 11. The low-pass filtered output of the multiplier 12 has at any given time a magnitude which is a sinusoidal function of the flow-velocity at a corresponding point on the profile; hence successive magnitudes (which all occur within one pulse repetition period) represent the complete profile. The system operates on the Doppler principle, whereby the transit time of echoes from the same moving scattering centre varies from one pulse period to the next so that the delayed and undelayed inputs to the multiplier have a phase difference dependent on velocity. To improve the signal-to-noise ratio, the velocity profile measurement may be averaged over several pulse periods and echoes from stationary objects may be eliminated. The profile is displayed on a CRD and may be integrated over the duct section to determine volume flow. Various modifications (none shown here) are discussed in which (a) the phase shifter 11 is omitted or incorporated in delay 10, (b) the delayed and undelayed signals are limited before being multiplied Fig. 4 (not shown), (c) the echo signals are frequency-converted by mixing them with two reference signals in phasequadrature and scalar-products or vector-products are derived from the converted signals, Figs. 6 or 7 (not shown), (d) echo signals are delayed before frequency-conversion (Fig. 7), or (e) the delayed and undelayed signals are processed to give sum Fig. 11 (not shown) or sum-and-difference Fig. 13 (not shown) signals which are then rectified. In the various embodiments the signal delaying and processing may be done by analogue, digital or hybrid techniques. The invention is applicable to electromagnetic wave systems, e.g. the measurement of wind velocity profiles using modulated or unmodulated laser light.
Patent GB-1021715-A (GB)
Title: Joint sealing composition
Inventor: REID JAMES EDWARD
IPC: C09D5/34
Filed: 1963-02-18
Abstract: A joint-sealing composition workable at ambient temperatures comprises a mixture of bitumen, butyl rubber, powdered filler and a solvent.  The percentages by weight may be: bitumen, 24-28; butyl rubber, 2.5-8; mineral oil, 5-15; powdered filler, 40-50; fibrous filler, 5-14; solvent, 5-14.  The bitumen may have penetration 180-500.  The powdered filler may be whiting, talc or calcium carbonate.  The fibrous filler may be asbestos fibre.  The mineral oil may be "Risella" (Registered Trade Mark) 33 or Process Oil 381.
Patent GB-608821-A (GB)
Title: Improvements in and relating to internal combustion engines of the fuel-injection compression-ignition type
IPC: F02B19/10
Filed: 1946-03-01
Abstract: 608,821. Combustion chambers. CHAPMAN, C. W., and GOSLING, A. W. March 1, 1946, No. 6465. [Class 7 (iii)] A fuel-injection compression ignition engine has a combustion chamber 1 formed in the cylinderhead, offset from the cylinder axis, and connected to the cylinder space 3 by a short tangential transfer passage 4, and is characterised in that the fuel injector 5 is disposed within the chamber at a position spaced apart from the passage 4 and so located that at least part of the fuel is sprayed in the direction of swirl of the air in the chamber and part directly through the transfer passage into the cylinder space. Instead of being in the position shown, the injector might be vertically above the passage and have only one jet assisting the swirl and then passing through the passage.
Patent GB-588237-A (GB)
Title: Tuning systems for high-frequency electrical oscillators, amplifiers and mixers
IPC: H01J23/207
Filed: 1941-05-20
Abstract: 588,237. Velocity - modulated tubes; electric resonators. THOMSON, J.. SUTTON, R. W., REITH, A. M., and WRIGHT, C. S. May 20. 1941, No. 6466. [Classes 39 (i) and 40 (iii)] in a high-frequency oscillator tuning of a resonator is effected by a plunger 11 moving close to but without touching a metal tube 12, which is in contact with the copper discs 2 forming the rhumbatron. The movement of the plunger is obtained by sliding or screwing and insulation may fill the gap between the plunger and tube 12. A number of such plungers may be used or they may be used in association with plungers 9 giving a coarse tuning adjustment. The walls 2 may be closed at their outer ends by sections, each pierced to receive a plunger or one hole having a concentric line output connection ; or the walls may be bent over to meet and holes made at the junction. Specifications 543,400 and 546,774 are referred to.
Patent GB-231459-A (GB)
Title: Improvements in installations for the treatment of heavy hydrocarbons in order to obtain a combustible gas and liquid products analogous to petroleum or naphtha
IPC: C10G11/02
Filed: 1925-03-10
Abstract: 231,459. BenzonaftÞne. March 26, 1924, [Convention date]. Hydrocarbons, cracking.-In an apparatus for carrying out the process described in Specification 231,157, heavy hydrocarbons such as fuel oil &c. pass from a tank 1 through a constant level tank 5 into a trough 10 in a horizontal boiler or retort 7 heated to 450-600‹ C. by a furnace 8. A layer of catalyst of the kind described in Specification 231,458, [Class 1 (i), Chemical processes &c.], is applied to the inside of the top of the boiler 7. For this purpose the surface is coated with a paste made by mixing solutions of sodium silicate and sodium formate with cerium and thorium oxides and reduced copper and nickel. A mixture of cerium oxide and reduced copper may be applied to the inlet end and a mixture of thorium oxide and reduced nickel to the outlet end. The vapours pass by a pipe 13 to a condenser 14 in which they are cooled to 30‹ C. Condensate passes away by a pipe 15 and uncondensed vapours pass through an iron chamber 17 containing copper baffles coated with a mixture of ferric oxide and reduced nickel and heated to 200‹ C. The vapours pass through a second condenser 18 in which they are cooled to 15‹ C. and then through a chamber 21 the baffles of which are coated with ferric oxide and reduced iron and which is heated to 250-300‹ C. The vapours then pass through a third condenser 22 in which they are cooled to 10‹ C. Uncondensed gases are collected in the holder 26. The Specification as open to inspection under Sect. 91 (3) (a) states also that fatty substance of animal or vegetable nature may be treated. This subject-matter does not appear in the Specification as accepted.
Patent GB-450589-A (GB)
Title: Improvements in or relating to the surface treatment of magnesium and high percentage magnesium alloys for the purpose of increasing the resistance to corrosion thereof
IPC: C23C22/24
Filed: 1936-03-04
Abstract: A corrosion-resistant surface is formed on magnesium or a high percentage magnesium alloy by suspending the article, after it has been cleaned, in a cold aqueous solution containing between 35 and 45 grams per litre of an alkali metal dichromate and between 55 and 65 grams per litre of magnesium sulphate for a period of about 1-2 hours.  The preferred solution contains 40 gms. per litre of alkali metal dichromate and 60 gms. per litre of magnesium sulphate and, after treatment, the article is rinsed in tepid or warm water.  The suspended article must be out of electrical contact with the metallic part of the apparatus.
Patent GB-261237-A (GB)
Title: Improvements in or relating to luggage grids or carriers for motor vehicles
IPC: B60R9/06
Filed: 1926-03-09
Abstract: 261,237. Clarke, E. March 9, 1926. Luggage and like racks. - A luggage grid or carrier for motor vehicles is provided with a fitting whereby the grid may be mounted upon the securing spindle of a spare wheel support, additional support for the grid preferably being furnished by the pins or like members which carry the number-plates. In the arrangement shown the fitting is in the form of a transverse bar a, to the ends b of which the grid d is pivoted and which is provided with a central hole e adapted to be passed over the spindle of the spare wheel support, while the lower edge of the bar rests upon the number-plate pins. A securing- nut engaging the outer end of the spindle clamps both the spare wheel and the bar a in position. Instead of a hole e, the bar may be provided with slots, as indicated by e<1>, a', to receive the spindle and pins respectively, or an enlargement f on the lower edge of the bar may be perforated or slotted to engage over the pins.
Patent GB-279697-A (GB)
Title: Improvements in the reduction of zinc ores or other zinc bearing materials
IPC: C22B1/14
Filed: 1927-03-09
Abstract: 279,697. Compagnie des Metaux Overpelt-Lommel. Jan. 26, 1927, [Convention date]. Agglomerating processes; distilling zinc. - A process for the reduction of zinc ores comprises the formation of the ore into sized grains preferably by the means described in Specification 284,248, followed if necessary by drying or baking, and in the case of sulphide ores by roasting on the grate of a blast apparatus, the grains so obtained being charged along with reducing agent, preferably also sized, into retorts for reduction. Calamines may be mixed with pre-roasted sulphide ores before treatment. Oxide ores may be agglomerated by means of water only, and in some cases a drying operation may be dispensed with, for example by the addition of zinc dust and sodium chloride.