baber/WOPTO huggingface dataset:
Patent GB-1166008-A (GB)
Title: Frequency Modulators
IPC: H03C3/00
Filed: 1968-06-14
Abstract: 1,166,008. Frequency modulations; transistor oscillating circuits. INTERNATIONAL BUSINESS MACHINES CORP. 14 June, 1968 [6 July, 1967], No. 28320/68. Headings H3R and H3T. A frequency modulator comprises a ring oscillator having a plurality of transistor stages 11, 21, 31 interconnected in a circular fashion for sequential conduction, a common source of collector bias for the stages and control means for varying the bias as a function of an input signal. As shown an output is taken from stage 31, but it may be taken from any of the frequency-modulated stages 11, 21, 31. As shown, the collector voltage is derived from the second, 52 of two cascaded emitter followers 51, 52 to the base of the first of which is applied (1) a centre-setting bias from potentiometer 43 and (2) the modulating signal from potentiometer 42, via capacitor 44. The ring oscillator may comprise any odd number of transistor stages, together with further emitter-follower stages, the frequency of oscillation being determined by the propagation delay of the transistors.
Patent GB-362839-A (GB)
Title: Sewing machines
IPC: D05C15/00
Filed: 1930-11-07
Abstract: 362,839. Tufting-machines. FAIRWEATHER, W., 65, Chancery Lane, London.-(Singer Manufacturing Co. ; Elizabeth, New Jersey, U.S.A.) Nov. 7, 1930, No. 28512/31. Divided on 362,615. [Class 112.] Thread loops formed by a hookneedle tufting-machine are cut by a disc knife 101 which is rotatably mounted on the feeding foot. As the knife wears the thread forces it round against a frictior. washer to a new position. The needle is flattened on one side and makes sliding engagement with the knife. The machine is similar to that described in Specification 362,615. Specification 362,616 is referred to.
Patent GB-1151639-A (GB)
Title: Catalytic reforming process
Inventor: KLUKSDAHL HARRIS E
IPC: B01J23/656
Filed: 1967-06-20
Abstract: 1,151,639. Reforming catalysts. CHEVRON RESEARCH CO. 20 June, 1967 [24 June, 4966; 19 May, 1967], No. 28516/67. Heading B1E. [Also in Division C5] Reforming catalysts comprise a porous inorganic oxide catalyst support having disposed thereon in intimate admixture from 0.01-3% of Pt and 0.01-5% of Re. Preferred supports are MgO, Al 2 O 3 , Si0 2  (and naturally occurring aluminium silicates which can be regarded as complexes of SiO 2 .Al 2 O 3 , SiO 2 -ZrO 2 , SiO 2 - Al 2 O 3 -ZrO 2 ., SiO 2 -MgO, SiO 2 -Al 2 O 3 M g O   and zeolites (crystalline aluminosilicates). Preparation is conventional in that the oxide is usually immersed in soluble Pt and Re salt solutions. The conversion to metal may be effected in the presence of hydrogen. The catalyst may be promoted by S, Cl or F.
Patent GB-844727-A (GB)
Title: Improvements in or relating to electrical connector assemblies
IPC: H01R4/18
Filed: 1958-09-05
Abstract: 844,727. Making electrical components; jointing by stamping. GENERAL MOTORS CORPORATION. Sept. 5, 1958 [Sept. 19, 1957], No. 28557/58. Classes 83 (2) and 83 (4). No. 39811/58. [Also in Group XXXVI] An electrical terminal 10, fixed to conductor 13, with a spade end 11 and ferrule 12, is formed from sheet metal, the ferrule being U-shaped with a flat bottom 15 and side walls 16, 17 which upwardly extending ears 20 and 22, 23 respectively so placed that when the side walls are curled over by the die 30 to clamp upon conductor 13, ear 20 engages space 21 between ears 22, 23 and encloses several strands of the conductor between itself and the side wall. The die is so shaped as to bend the side walls in a curved path and, because of their alternate arrangement, "they consequently engage the strands beyond the longitudinal central line and sweep them back to the side wall thus forming a serpentine bend in the strands to fix them more firmly. In another modification, the flat bottom of the ferrule has a raised portion aligned with the central ear which bends the strands of the conductor perpendicular to the above-mentioned serpentine bends.
Patent GB-296587-A (GB)
Title: Improvements in or relating to hinges
IPC: E05D3/04
Filed: 1927-10-27
Abstract: 296,587. Thompson, E. Oct. 27, 1927. Hinges for adjoining doors on separate doorways comprise a pair of separate hinge pins to which are secured a right-hand and a left-hand strap 4 respectively, the pins being mounted in the sockets of brackets 3 of upper and lower attachment members 1, 2. The ends of the pins are rounded. The application of the hinge to a double garage door is referred to.
Patent GB-1322757-A (GB)
Title: Getter devices and processes
IPC: H01J29/94
Filed: 1970-06-12
Abstract: 1322757 Getter device SAES GETTERS SpA 12 June 1970 [14 June 1969] 28647/70 Heading H1D A getter device for insertion in an electron tube (e.g. a c.r.t.) comprises a getter material, first and second gas releasing materials disposed and arranged so as to be capable of actuation successively to provide at successive stages in a gettering process first and second releases of gas, each gas having the property of improving the sorption properties of the getter material. The getter material may be an alkali or alkaline earth metals, e.g. Ca, Mg, Sr and Ba, the latter preferred. The getter metal may be alone but is preferably a getter alloy including one or more less reactive metals, less reactive to air, preferably Ba-Al in wt. ratio 10 : 5 to 10 : 20 and binary alloys containing 50 to 56% Ba, balance Al. Getter metals and alloys alone produce endothermic getter devices operable by induction heating, but is preferably exothermic as when mixed with Ni wherein heat for vaporization is produced exothermically between the Ni and the alloy. The inductively heatable ring can be of variety of continuous shapes. Suitable gases include carbon-monoxide, carbon dioxide, oxygen, and preferably hydrogen and/or nitrogen. The two gases may be the same, e.g. nitrogen. Gas releasing materials include barium carbonate, the metallic hydrides, barium nitride, barium hydride, titanium hydride, phosphorous nitride and preferably iron nitride (Fe 4 N). Respective wt. ratios of the getter material and gas releasing materials and gas producing pressures are given. Fig. 1 includes ring 21, pressed particulate mixture 22 of (a) Ba-Al aloy and Ni, and (b) Fe 3 N, disc shield 23 of heat conductive material, holding gas releasing material 25, heat insulating base 29 attached by tabs 28, mounting tab 30, and depressions 31 to reduce heat transfer. Fig. 3 and 4 (not shown) include modified holder (41), Figs. 5 and 6 (not shown) include annular channel (51) and cylindrical holder (55), Fig. 7 (not shown) includes a mixture (62) of gas releasing material and evaporable material, support member (63) attached by spot welding and holder (67) containing gas releasing material, Fig. 8 (not shown) includes spring biased strip (72) attached to the electron gun, inductive heating beng via H.F. operated coil (74). Fig. 9 (not shown) includes support (82) holding getter device (50), with holder (55) for the further gas releasing material. Figs. 10, 11 (not shown) illustrate comparative gas releasing characteristics and Fig. 12 (not shown) the sorbtion characteristic, discussed in relation to specific examples of operational procedures and parameters. Reference is made to Specification 496,856.
Patent GB-348494-A (GB)
Title: Improvement in conveyors
IPC: B65G37/00
Filed: 1930-09-25
Abstract: 348,494. Endless belt conveyers. KRIEGER, L., 2 bis, Avenue Jean-Jaurea, Arcueil, Seine, France. Sept. 25, 1930, No. 28687. Convention date, Oct. 8, 1929. [Class 78 (i).] In conveyers comprising two endless bands b, c between which are engaged the articles to be conveyed, the bands are separated at curved parts of their travel by guiding them on separate pulleys.
Patent GB-648580-A (GB)
Title: An improvement in or relating to gas storage containers
IPC: A62C13/00
Filed: 1948-11-05
Abstract: 648,580. Storing gases under pressure. NU-SWIFT, Ltd., and HENSHAW. T. A. Nov. 5, 1948. No. 28747. [Class 8(ii)] [Also in Group XVIII] A container for liquefied or compressed gas is so constructed as to float when empty and when charged or partly charged to float partly submerged to an extent proportionate to the amount of the charge. A calibrated buoyant member may be detachably secured to the container or the latter may be jacketed to give it the desired buoyancy.
Patent GB-228995-A (GB)
Title: Improvements in the soldering of aluminium or its alloys
IPC: B23K35/26
Filed: 1923-11-15
Abstract: 228,995. Preston, L. R., and Tolman, J. A. Nov. 15, 1923. Alloys.-A solder for aluminium and its alloys contains, in addition to tin and zinc, small percentages of aluminium, bismuth, phosphor-tin, stearic acid and silver sand. The solder is composed approximately of 73.2 per cent of tin, 22 per cent of zinc, 1.8 per cent of aluminium, 0.5 per cent of bismuth, and 2.3 per cent of 5 per cent phosphor-tin, and is cast in moulds coated with stearic acid and silver sand.
Patent GB-824066-A (GB)
Title: Aliphatic tricarboxylic acid esters
Inventor: BRUSON HERMAN ALEXANDER
IPC: C07C69/34
Filed: 1957-09-12
Abstract: Lubricants comprise tricarboxylic esters of formula <FORM:0824066/III/1> wherein a is an integer from 6-9 inclusive, b is an integer equal to (15-a) and X, Y and Z represent an alkyl radical or an alkyl-(O-A)n-radical in which A represents a C2-3 alkylene group and n is 1, 2 or 3, the sum of carbon atoms in X, Y and Z being not less than 6 nor more than 81.  For use in internal combustion engines, the esters are advantageously mixed with 0.01-0.5% by weight of an antioxidant such as phenothiazine. Other additives may be present such as viscosity index improvers, e.g. polylauryl methacrylate, or various oil-soluble detergents, extreme pressure agents such as chlorinated waxes and oils, phosphorized and sulphurized oils, and organic phosphates or phosphites.  The esters may also be formed into greases with gelling agents such as lithium hydroxystearate or bentonite.ALSO:The invention comprises esters of formula <FORM:0824066/IV (b)/1> wherein a is an integer from 6-9 inclusive, b is an integer equal to (15-a) and X, Y and Z represent an alkyl radical or an alkyl-(O-A)n-radical in which A represents C2-3 alkylene group and n is 1, 2 or 3, the sum of carbon atoms in X, Y and Z being not less than 6 nor more than 81.  They may be prepared by forming a 1 : 1 adduct of oleic or elaidic acid, or an appropriate ester thereof, with maleic anhydride, preferably at about 200-250 DEG C. in an inert atmosphere, fully esterifying said adduct to form a triester having the appropriate alcohol residues, and then hydrogenating the triester to remove unsaturation therefrom. Alternatively a triester prepared as above in which each alcohol residue is derived from a C1-3 alkanol may be transesterified with one or more appropriate alcohols containing 4 or more carbons.  Any unchanged starting materials or volatile by-products may be removed by vacuum distillation before or after the hydrogenation step and the product may be treated to remove free acidity and traces of alcohols by washing with dilute alkali followed by the use of alumina or absorbent clays.  The hydrogenation is advantageously carried out with a finely divided nickel catalyst at 150-200 DEG  C. and 50-200 atmospheres hydrogen pressure.  The preferred products have a pour point of -65 DEG  F. or below and a viscosity index above 100 (Dean-Davis).  They are useful as lubricants (see Group III).
Patent GB-322840-A (GB)
Title: Improvements in or relating to rotary fans
IPC: F04D29/34
Filed: 1928-10-06
Abstract: 322,840. Bothezat, G. de. Oct. 6, 1928. Impeller blades.- A fan consisting of blades 17 formed integral with or secured to a central disc 10 has the disc diameter not less than 0.35 of the overall diameter, the sum of the blade widths w, Fig. 9, at any radius r between 1.6 # and 2.4 # of such radius, and the blade angle b, Fig. 6, between 15‹ and 45‹. The length R of a blade is preferably more than twice the greatest width Wm, Fig. 9, the number of blades greater than 15 and the spacing h, Fig. 6, not less than half the average width w. A metal sheet may be stamped out to form the blades and central disc, this being corrugated at its periphery, or separate blades may be secured by angular brackets 19, Fig. 3, or by integral angular tongues, to the disc 10, the other corners being riveted directly to another disc 11. The blades may be parallel or tapered, flat or shaped as in Fig. 6, and of constant or varying angle b. If curved the line c, joining the edges of blade, is 5 to 20 times as long as its maximum perpendicular distance from the blade.
Patent GB-170862-A (GB)
Title: Improvements in and relating to catamenial appliances
IPC: A61F13/64
Filed: 1921-10-29
Abstract: 170,862. Hille, T. Oct. 30, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Catamenial appliances.-A catamenial appliance is formed wholly of elastic material and comprises a relatively small holder c for cotton wool, sponge, or other absorbent material, supporting- bands b, and a belt a. Figs. 1, 2, and 3 show three different embodiments of the invention.
Patent GB-355985-A (GB)
Title: Improvements in horse rakes
IPC: A01D76/00
Filed: 1930-09-26
Abstract: 355,985. Rakes. RANSOMES, SIMS, & JEFFERIES, Ltd. and CHALLACOMBE, A., Orwell Works, Ipswich. Sept. 26, 1930, No. 28906. [Class 6 (iii).] To lock the tine frame 1 of a horse-rake in its working position the raising pawls 4 of the selflifting mechanism are adapted to latch on to locking rollers 13 or pins when the tine frame is dropped to its working position. The pawls 4 are adapted to be lowered into engagement with the ratchet wheels 3 by a spring-controlled pedal actuating a finger 6 engaging between lugs 7, 8, as described in Specification 292,313, [Class 6 (iii), Harvesting-appliances]. When the tines are to be lowered again the pedal is released and the pawls are lifted by a cam 17 permitting the tine frame to fall. A cam surface 10 on each pawl passes under the locking roller until a hook 9 formed on the pawl can snap over or latch on to the roller. The frame is then locked until the pawls are again depressed. A plunger stop 12 cushions the fall of the tine frame.
Patent GB-617163-A (GB)
Title: An electronic valve device for maintaining an electrical current substantially constant
IPC: G05F1/52
Filed: 1945-11-01
Abstract: 617,163. Automatic control systems for electric supply circuits. ENGLISH ELECTRIC CO., Ltd., and HOWELL, E. A. Nov. 1, 1945, No. 29033. [Class 38 (iv)] Current control.-Direct current from a source V to be stabilized flows through a load R1 in the anode circuit of a pentode valve T1 having a cathode load R2, the voltage drop across which, opposed by a steady voltage derived from resistor R5 and neon tube T3, biasses the control grid appropriately for the anode current, while the screen grid is supplied from a separate source. Variations in the supply voltage or in the load R1 produce changes in the anode current, and consequently in the voltage drop across the cathode load, which are fed back to the control grid in compensating sense to stabilize the current in the load R1. The cathode load is variable to adjust the anode current, and has a differential resistance value which, when multiplied by the valve amplification factor is large compared with the anode load. In a modification (not shown) the cathode load is replaced by a second pentode having its own cathode resistor, which may be replaced by a third valve and cathode resistor. The Provisional Specification refers to a modification in which a second valve is connected between the cathode and control grid of the first valve to increase the rate of change of control grid volts with change of load current.
Patent GB-1395354-A (GB)
Title: Method of mixing at least two gases and to a device for carrying out said method
IPC: B01F23/10
Filed: 1972-06-21
Abstract: 1395354 Mixing gases ENTREPRISE DE RECHERCHES ET D'ACTIVITES PETROLIERS (ELF) 21 June 1972 [29 June 1971 1 Dec 1971] 29043/72 Heading B1C In a method and apparatus for mixing a molar proportion of a gas B with a gas A, the latter flows through a mixing chamber 3 at a constant rate while B diffuses into it from a chamber 2 through a porous screen 4. The gas B may, as shown, be the vapour of a volatile liquid maintained at a constant level in chamber 2, or may be introduced in the chamber 2 in the gaseous state; in the latter case a pressure equalisation duct (14, Fig 3 not shown) may connect the two gas supply pipes. The apparatus is surrounded by a temperature controlled enclosure. The area of the screen through which gas B can diffuse may be altered by exchanging the ring 5. The screen may be a sintered metal plate, glass fibre pad, wire guage, or a thin permeable membrane e.g. of a silicone, polyalkylene, polyethylene or polypropylene, of thickness 0.5Á to 1 mm and pore diameter 1 to 1 mm. More than two gases can be mixed by introducing a mixture of gases or liquids with the the chamber 2, or by using a plurality of such chambers, the different gases diffusing through the same screen. The invention is useful in chromatography, preparing standard mixtures for analytical purposes, and making doping gas mixtures.
Patent GB-800031-A (GB)
Title: Improvements in and relating to register mechanisms
Inventor: GREENWOOD ERIC
IPC: G06M1/26
Filed: 1954-10-08
Abstract: 800,031. Counting-apparatus. ENGLISH ELECTRIC CO., Ltd. Sept. 30, 1955 [Oct. 8, 1954], No. 29072/54. Class 106 (1). A counter comprises indicating drums 1-4 mounted on a common shaft 5 and interconnected by transfer mechanism 8-10. The first drum 1 is driven by a worm 11 and wormwheel 12 carried by one end of a sleeve 13, the other end of which carries a weighted driving arm 14, the head 14a of which is located between the internal projections 15, 16 of the drum 1. Free on the shaft 5 is a weighted arm 17, the head 17a of which is located between two internal projections 16, 18 of the drum 1. The drum 1 is normally rotated by the arm 14, but is moved rapidly during the transfer instant by the weighted arm 17. Specification 757,362 is referred to.
Patent GB-835084-A (GB)
Title: Method of continuously casting metals
IPC: B22D11/11
Filed: 1957-09-16
Abstract: 835,084. Continuous-casting processes. BABCOCK & WILCOX CO. Sept. 16, 1957 [Oct. 1, 1956], No. 29115/57. Drawings to Specification. Class 83 (1). In a continuous-casting process, natural cryolite or an analogue thereof, i.e. a composition containing sodium-fluoride and aluminium-fluoride, is continuously added to the melting-zone to fluidize the slag &c. The additive is in the ratio by weight of 1 part to 25,000-10,000 parts of the melt. The additive is introduced by a screw-feeder and the mould-assembly is similar to that disclosed in Specification 656,386, which is referred to.
Patent GB-1122907-A (GB)
Title: New water-insoluble halogenated anthraquinone dyestuffs and process for their manufacture
IPC: C09B1/515
Filed: 1966-06-29
Abstract: The invention comprises halogenated di-hydroxydiaminoanthraquinones and mixtures thereof of the formula <FORM:1122907/C4-C5/1> wherein A, B1 and B2 represent hydrogen or alkyl radicals which may be substituted, R represents an aryl residue which contains at least one OH, alkoxy, benzyloxy, phenoxy or acyloxy group i o- or p-position to the anthraquinone residue, and n is a number within the range from 0.5 to 2.5.  They may be obtained by treating the corresponding unhalogenated compounds with halogenating agents.  Specified halogenating agents are Cl2, Br2 and sulphuryl chloride.  The halogenation may be carried out in a solvent or diluent. Halogenation catalysts may be used, for example iodine or a ferric halide.  Examples are given for the production of the dyestuffs. They are useful for dyeing polyester fibres greenish blue shades. Reference has been directed by the Comptroller to Specification 1,056,954.
Patent GB-419842-A (GB)
Title: Improvements for converting oscillating motion into rotary motion
IPC: F16H21/40
Filed: 1933-10-21
Abstract: 419,842. Linkwork. BABEL, R. A., 12, Place des FÛtes, Clichy, Seine, France. Oct. 21, 1933, No. 29221. Convention date, Sept. 4. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 23, 1934.] [Class 80 (iii).] Means for converting the semi-rotary motion of a shaft 76 to a rotary motion of a shaft 75, comprise a beam 77, links 78<a>, 79a, pivoted to the beam and to pins 80, 81, on crank discs 80<a>, 81a. Further crank discs 82a, 83<a>, on shafts 80<b>, 81b, are coupled by a link 84. The centre of this link is connected to a pin 86 on a disc 87 fixed to the shaft 75. The Specification as open to inspection under Sect. 91 describes an internal-combustion engine having oscillating vanes 7 fixed to a hub 8 on a shaft 14 which drives a power shaft 19 through a connecting rod 18, or a combination of links and gear wheels. Cams 22, 21, which control each pair of inlet and exhaust valves 23, 24, are driven by chain and sprocket gear 29, 29<a> or by rocker arms off the driven shaft. Cooling water flows through the hollow shaft 14 to inside the vanes 7 which contain baffles 41, and also through the casing, abutments, and hub. The vanes may be secured to the hub 8 by screws 48, and to the stub shafts 14 by bolts 51. Spring-pressed packing bars 15, 16, 17 are provided. In a further arrangement, a rocking lever on the vane shaft has two links pivoted to the ends of the lever, the outer ends of the links being pivoted to gear wheels. This subject-matter does not appear in the Specification as accepted.
Patent GB-825509-A (GB)
Title: Null-type radiation analysis system
IPC: G01N21/37
Filed: 1956-09-25
Abstract: 825,509. Photo-electric analysis. PERKINELMER CORPORATION. Sept. 25, 1956 [Sept. 27, 1955], No. 29223/56. Class 40 (3). Gas is analysed by passing a beam of infra-red radiation through a sample and comparing it with a nulling beam comprising two beams, one of which is of greater intensity and is constant while the other is of lesser intensity and may be variably attenuated. Light from a source S divides into nulling beams 11, 12, the total intensity of which is adjusted by trimmers 30, 31, 32 to equal that of the analysis beam 10, after which the sample is introduced into chamber 13. A chopper 14 allows light from the analysis beam 10 and the nulling beams 11, 12 to fall alternately on a photo-electric cell 16, the output of which is amplified (at 17) and demodulated (at 19) to produce a signal corresponding to the difference between the intensities of the analysis and nulling beams. This signal is filtered at 21 and used to control a servomotor 23 which adjusts the attenuator 24 so as to eliminate the difference, the amount of adjustment being recorded at 28. For precise measurement, nulling beam 11 is adjusted initially to <1>/10th of the intensity of the two nulling beams so that a 10% adjustment thereof by the attenuator 24 effects a 1% adjustment of the system.
Patent GB-395720-A (GB)
Title: Process of normalising ternary and multiple alloys containing copper and nickel
IPC: C22F1/00
Filed: 1931-10-21
Abstract: In a process for improving alloys consisting of copper, nickel, and a metal or metals of the group iron, chromium, molybdenum, cobalt, manganese, vanadium, or tungsten and having a composition lying outside the range of miscibility in the solid state at ordinary temperatures but within the range of miscibility at temperatures approaching the melting point, the cast alloys are homogenized by heating to temperatures between 800 DEG  C. and the melting point and are subsequently either mechanically worked at the homogenizing temperature or are chilled and then mechanically worked in the cold state.  The alloys after being worked at the homogenizing temperature may be quenched and then tempered at 300-800 DEG  C.  The cold worked alloys may also be tempered at 300-800 DEG  C.  Various examples of particular alloys are given in the Specification.