baber/WOPTO huggingface dataset:
Patent GB-844493-A (GB)
Title: Fluid pressure regulating device
IPC: G05D16/10
Filed: 1958-02-11
Abstract: 844,493. Valves. BENDIX AVIATION CORPORATION. Feb. 11, 1958 [Feb. 13, 1957], No. 4473/58. Class 135. A two-stage pressure-regulating valve has a housing that embodies a central bore 12 from which opens an annular chamber 11 and an end outlet chamber 14; the bore 12, which is provided with four inlet ports 13, slidably accommodates an assembly comprising a piston 15, a throttling sleeve 16 and a valve member 17 with inwardly flared slots 18. The bore 12 is formed by a tubular member 33 and the sleeve 16 extends rearwardly beyond the ports 13 in an axial direction when the apparatus is in the position shown, the sleeve being spaced from the member 33 by 0.002-0.003 inch; the sleeve 16 is supported from the rod 31 by a spider. The valve member 17 is attached to the righthand end of the rod 31 and in the position shown closes the end of the bore 12 but when the member 17 is moved beyond the bore 12 a flow path from the latter to the chamber 14 is established through four flared slots 18 behind the member 17, which slots are shaped as shown in Fig. 2, the degree of restriction offered by the slots 18 being dependent upon the axial position of the latter relative to the end of the bore 12. High-pressure air is admitted to the chamber 11 from which a conduit leads to a pressure regulator 25 that supplies air at a reduced pressure to the rear face of piston 15, which latter urges the assembly 15-18 rightwardly against a spring 21 so that the air in chamber 11 is enabled to flow to the chamber 14 via ports 13, the narrow annular space or cross-section between the sleeve 16 and bore 12, and the slots 18 whereby two stages of pressure reduction are realized. The pressure in the chamber 14 assists the spring 21 in opposing the pressure applied to the piston 15 so adjusting the position of the assembly 15-18. A restricted axial bore 27 extends through the rod 31 of assembly and interconnects the housing ends thereby promoting uniformity of operation.
Patent GB-535468-A (GB)
Title: A process for the production of colourless or light-coloured sulphonium compounds
IPC: C07C381/12
Filed: 1940-03-11
Abstract: 535,468. Sulphonium compounds. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. March 11, 1940, No. 4516. Convention date, April 3, 1939. [Class 2 (iii)] Colourless sulphonium compounds are prepared by reacting sulphuric acid or an aryl sulphonic acid ester of a primary aliphatic alcohol with a mixture of thio-ethers prepared from a mercaptan mixture originating from the refining of mineral oils or mineral oil products by a process characterized in that the mixture of thio-ethers is refined before use. The refining may consist of a treatment with absorbents such as clay, fullers earth, silica gel, bauxite, absorptive charcoal, or a treatment with sulphuric acid or phosphoric acid, or a mixture of such treatments. Thetreatment with absorbents is preferably carried out at temperatures from 100‹-200‹ C. In an example a mixture of thio-ethers obtained by reaction of a mixture of sodium alkyl sulphates from the sulphation and cracking of paraffin wax and a mixture of mercaptans from the cracking of a sulphur containing crude oil, is treated at 150‹ C. with an earth and filtered before being reacted with dimethyl sulphate to produce a sulphonium compound.
Patent GB-701725-A (GB)
Title: Improvements in brake cooling systems, especially for disc brakes
IPC: F16D65/853
Filed: 1952-02-20
Abstract: 701,725. Disc brakes. LALLEMANT, P. J. M. Feb. 20, 1952 [March 21, 1951; Dec. 28, 1951], No. 4542/52. Class 103(1) In a disc brake comprising a single disc 1 which is adapted to be engaged on either side by circumferentially arranged blocks of friction lining material 6 and 7 mounted upon annular support members 4 and 5, metal pads 8 and 9 are arranged between alternate blocks 6 and 7 so that when the hydraulic actuator piston and cylinder 13, 14 is operated to apply the brake, the metal pads 8 and 9 bear against the disc 1 and transfer heat therefrom to the support members 4 and 5 which dissipate it to the surrounding air. As shown in Fig. 2 the pads 8, 9, are mounted resiliently on the members 4 and 5 by rods 10 and springs 12 so that they can move back as wear occurs in the pads 6 and 7. The support members 4 and 5 are preferably hollow and filled with a salt solution comprising a mixture of powdered napthalene, such as that described in French Specification 999,870, which melts at the temperature of operation of the brake and has a high specific and latent heat. In the modification shown in Fig. 3, the heat conductor pads 8 are themselves in the form of hollow members containing a coolant and are resiliently mounted on an annular backing plate 4. In another form the pads 8 may be cooled by flow of a fluid led in by a flexible pipe. Such a pad 8b is shown in Fig. 6, the fluid, preferably air, entering by the pipe 20 and after passing oyer' the internal vanes escaping through vents 22. In Fig. 8, there is shown an arrangement whereby in an aircraft installation, a supply of air is branched off the compressed air feed circuit 23 by pipe 24 and after being led through a radiator 25 is passed to the brake under control of a valve 32 opened automatically by pressure applied to the hydraulic master cylinder 28 by which the brake friction elements are compressed. A valve member 34, interposed between the master cylinder 28 and the cylinder 31 containing the valve 32, has a partition containing a central port and non-return valves whereby when pressure is relieved in the hydraulic system, the air cooling supply to the brakes is not immediately cutoff.
Patent GB-1318676-A (GB)
Title: Pickling solutions
Inventor: FLUCHTER H
IPC: C23G1/02
Filed: 1972-02-01
Abstract: 1318676 Any-foaming agent for pickling HENKEL & CIE GmbH 1 Feb 1972 [2 Feb 1971] 4593/72 Heading C7E An acid pickling solution contains a wetting agent, and as anti-foaming agent, a mixture of octadecanediol-1,12 and a paraffin oil. The acid may be HCl, H 3 PO 4 , or H 2 SO 4 , the wetting agent may be ethoxylated nonyl phenol with or without an alkylbenzene sulphonic acid, the paraffin oil preferably has viscosity 100-200 cSt at 20‹C, the ratio octadecanediol-1,12 to paraffin oil may be 4:1 to 1:3, and the solution may contain 0À5-10% of the anti-foam agent based on the weight content of wetting agent and 0À05-2% based on the weight content of acid. The solution may also contain a chlorohydrocarbon such as trichloroethylene.
Patent GB-706528-A (GB)
Title: Method for making sintered aluminium bodies
IPC: C22C32/00
Filed: 1952-02-21
Abstract: 706,528. Powder metallurgy. SOC. ANON. POUR L'INDUSTRIE DE L'ALUMINIUM. Feb. 21, 1952 [May 10, 1951], No. 4653/52. Class 83 (4) A method of making sintered aluminium bodies having a specific weight of at most 3 gms/cm.<SP>3</SP>, a tensile strength of over 25 kg/mm<SP>2</SP> in at least one direction, and a Brinell hardness of at least 75 kg/mm<SP>2</SP> even in the annealed state, consists in hot compressing or hot working a grease free or nearly grease free superficially oxidized flaky aluminium powder having a bulk weight of at least 0.8 kg/litre. The powder is produced in a stamper or ball-mill with 0.2 per cent to 0.5 per cent stearine. The film of oxide on the flakes is less than 0.01 microns in thickness. The aluminium may be in alloy form. Specifications 430,777, [Group II], and 625,364 are referred to.
Patent GB-1040831-A (GB)
Title: Improved door checking appliance
IPC: E05D11/00
Filed: 1963-02-05
Abstract: 1,040,831. Door checks; hinges. J. N. MORRIS and R. M. WILLIAMS. May 4, 1964 [Feb. 5, 1963], No. 4731/63. Addition to 863,785. Headings E2F and E2M. In a door checking device as described with reference to Figs. 1, 2 of the parent Specification the cylinder 11 is made from drawn or seam welded tube having a "commercial finish" as supplied, and does not have any serrations or other projections formed on its inner surface, the rotor 15 being roughened by sand blasting, knurling or other roughening process. Alternatively the rotor 15 may also have an ordinary "commercial finish".
Patent GB-437778-A (GB)
Title: An improved method of waterproofing textile fabrics
IPC: D06M13/02
Filed: 1935-02-14
Abstract: 437,778. Waterproofing textiles. ANDERSON, W., 22, Blackfriars Street, Edinburgh. Feb. 14, 1935, No. 4746. [Class 140] Textile fabrics such as woven canvas, jute, linen, &c. or tents, rucksacks, horse rugs, shoes, &c. made therefrom, are waterproofed by impregnating with the composition described in Specification 413,463 comprising a mixture of spermaceti, paraffin wax, and rubber dissolved in a mixture of white mineral spirit and a chlorinated solvent such as trichlorethylene.
Patent GB-1207576-A (GB)
Title: Silkworm feed
Inventor: NIIMURA MASAZUMI
IPC: A23K20/195
Filed: 1968-01-30
Abstract: 1,207,576. Silkworm feed. AJINOMOTO CO. Inc. 30 Jan., 1968, No. 4750/68. Heading A2B. [Also in Division A5] A silkworm feed having a hardness of 10<SP>4</SP>-10<SP>7</SP> dyna/cm<SP>2</SP> at 20‹C. comprises, on a dry basis, of at least 50 wt. per cent. of maize (Zea mays L) and/or sorghum (Sorghum vulgart), with soybean solids, and 50-90 wt. per cent. of water. The feed may be free from, or may contain, mulberry leaves and its derivatives. The feed may contain Penicillin and/or Tetracycline derivative and a Macrolides antibiotic for the prevention and treatment of flacherie.
Patent GB-1026740-A (GB)
Title: Fire-retardant fibreboard
Inventor: CADOTTE JOHN EDWARD
IPC: C04B14/46
Filed: 1963-04-23
Abstract: Fire-retardant fibreboard comprises fibres consisting only of synthetic ceramic fibres, clay, in the proportion of 10 to 30 parts by weight per 100 parts of fibres, and a particulate binder, and is made by dewatering through a screen a flocculated slurry and drying the resulting mat without firing it.  The binder may be starch grains, which may be gelatinised in the wet mat before drying.  The slurry may be flocculated just before it is dewatered, e.g. by adding polyacrylamide to the headbox of a Fourdrinier machine.  In the examples, the fibres are of white slag wool, and the slurry also contains size and calcium chloride.
Patent GB-670173-A (GB)
Title: Improvements in high vacuum unobstructed path distillation apparatus
IPC: B01D3/08
Filed: 1949-02-22
Abstract: <PICT:0670173/III/1> Apparatus for high - vacuum unobstructed path distillation comprises an evacuable chamber 39 with a sump 53 for distilland and means including a pump 13 or other liquid lifting device for lifting the distilland from the sump and delivering it to a rotatable vaporizing disc 48 within the chamber.  A part 43 of the wall of the chamber 39 is close to the vaporizing disc and forms a condensing surface which as shown is bulbous and is formed with a gutter 45 for condensate.  Residue from the disc 48 is trapped by baffles 29, 31, 33 and drips into a container 19 from which it may be returned to the base of the chamber 39 by raising a stopper 21 by a wire (not shown).  By suitable operation of a tap 47 the gutter may discharge outside the chamber or back to the sump 53. Distilland can be introduced to the sump at 55.  The disc 48 is rotated about a horizontal axis by belt or other drive from a motor 80 mounted on a plate 14 from which the chamber 39 is supported.  Provision is made for cooling the bearings of the disc and also the residue passing to container 19.  The disc is heated by electric element 50 supplied with current by slip rings 54, 56.  Alternatively a stationary heater behind the disc may be used.  The plate 14 carries a pipe 61 by which the chamber is exhausted and also a chamber 81 from which liquid can be fed by a pipe (not shown) to the disc 48.  The chamber 81 is used when a liquid is to be degassed.  A control panel is secured to the plate 14 at the side of the apparatus and carries switches controlling the evacuating apparatus, the motor driving the disc 48, and the heater 50.  The panel also carries a micro-ammeter for a thermocouple 18 recording the temperature of the disc, a vacuum gauge, and auto-transformers for varying the current to the disc heater and to the diffusion pump of the evacuating apparatus. Means are provided to prevent the disc from being heated until the vacuum in the chamber 39 has reached a certain value.
Patent GB-399704-A (GB)
Title: Improvements in and relating to thread-trimming devices for buttonhole sewing machines
IPC: D05B3/06
Filed: 1933-02-16
Abstract: 399,704. Buttonhole-sewing machines. HUGHES, R. M., 72, Cannon Street, London. -(International Button Hole Sewing Machine Co. ; 502, Harrison Avenue, Boston, U.S.A.) Feb. 16, 1933, No. 4789. [Class 112.] The cutter for trimming off the stay cord and severing the thread consists of a blade placed between the throat plate and the work. In one form of the invention, Fig. 2, the cutters consist of the members 20, 15 with cutting edges 24, 17. The members are pivoted at 16 and are normally held epen by a spring 36. They are closed to cut the cord and thread by a cam 30 acting on their tails 29, 28. The cam 30 is actuated by the rotary turret, situated below the throat plate and containing the loopers. The blade 15 fits in a recess in the mat 14 on the buttonhole clamp plate 9 so that the thread is cut flush with the cloth surface. In the form shown in Fig. 11, the cutter consists of a single blade 42, pivoted on a stud 43, carried by the clamp plate 9 and flush with the mat 14. This blade has a cutting edge 44 co-operating with the front edge 45 of the cover plate 46. The blade is operated in this case by the turret operating means instead of by the turret.
Patent GB-710676-A (GB)
Title: Improvements in or relating to photographic transparency mounts
IPC: G03B21/64
Filed: 1952-02-26
Abstract: 710,676. Mounting photographic transparencies. KODAK, Ltd. Feb. 26, 1952 [Feb. 27, 1951], No. 4956/52. Class 98(2) To avoid buckling of a mounted transparency at the temperature at which it is to be used, the transparency is pre-heated to that temperature, and while so heated its margins are adhered to an adhesive-bearing surface on at least one of two sandwiching mounting members arranged with their framing apertures in register. Preferably the mounting members are sealed toegther outside the area of the transparency simultaneously with securing the transparency to the adhesive layer or layers. As shown, a strip of cardboard having symmetrically disposed apertures 14, 15 is scored along a line 11 between the apertures to form two identical flaps 12, 13 and to either or each flap is secured by moistening with alcohol a covering thin sheet of Kraft paper having a thermoplastic adhesive layer on both faces and apertured in the same way as the flap, one of the flaps having ears struck out from it to locate a transparency to be mounted. The transparency is positioned so that its image-bearing layer contacts an adhesivecovered flap when the mount is folded to enclose the transparency, and the mount is placed between the separated heated jaws of a press so that the transparency is heated and expanded to the same extent as it will be during subsequent projection. The heated jaws are then closed to seal the mount and adhere the transparency margins to it so that on cooling the transparency becomes tensioned, whereby heating caused by the projection light serves only to release the tension and buckling is avoided. The additional heat applied to seal the mount outside the transparency is insufficient to alter the temperature of the body of the transparency which remains secured to the adhesive layer or layers.
Patent GB-977193-A (GB)
Title: Hydraulic control device especially for steering vehicles
Inventor: ADAMS FREDERICK JOHN
IPC: B62D5/093
Filed: 1963-02-07
Abstract: 977,193. Telemotor steering systems. HYDROSTEER Ltd. Sept. 13, 1963 [Feb. 7, 1963], No. 4993/63. Heading B7H. [Also in Division F1] In a telemotor system for operating, e.g. a vehicle steering mechanism, wherein a pair of single-acting hydraulic motors 4, 8 operate the steering mechanism when supplied through pipes 3, 7 with liquid from a steering wheel operated reversible positive displacement rotary pump 2, e.g. a gear pump, a branch pipe 11 communicates with a pressurized reservoir and valve unit and is arranged to (a) close communication between the reservoir and the pipes during normal operation, (b) relieve excess pressure in the pipes to the reservoir, and (c) allow fluid to enter the pipes when the pressure therein is lower than the reservoir pressure. The reservoir and valve unit (Fig. 2) comprises two chambers 15, 16 separated by a wall 14 containing two spring-loaded non-return valves 17, 18 working in opposite direction. A connection 13 leads to a pressure source which may be gas, or as shown, the vehicle oil pump 13A. The branch pipe 11 may be omitted and the pipe 7 led into and out of the chamber 16. In an alternative arrangement the pipes 3, 7 supply a double-acting motor and are branched to the pressurized reservoir, one branch containing an unloaded non-return valve, and the other an unloaded non-return valve and a relief valve.
Patent GB-123207-A (GB)
Title: Improvements in Vapourizers for Internal Combustion Engines.
Inventor: SIDDELEY JOHN DAVENPORT
IPC: F02M31/08
Filed: 1918-03-21
Abstract: 123,207. Siddeley, J. D. March 21, 1918. Vaporizers, external. - A tube b traverses the induction pipe a ; it is long in the direction of flow of the gases to be heated and nar- -row, and is preferably of stream line form. Exhaust gases, water, or lubricating oil flow through the tube. The pipe a may also have a jacket c.
Patent GB-1074192-A (GB)
Title: Improvements in the electrolytic polishing of metals
Inventor: HOBSON CLIFFORD
IPC: C25F3/24
Filed: 1964-02-06
Abstract: Metal articles, particularly of stainless steel, are electropolished by supporting them freely on a titanium mesh, e.g. wire or of expanded metal in the form of a tray, immersing the mesh and articles as the anode in an electropolishing electrolyte, e.g. consisting of by weight 20 parts of H3PO4, 50 parts of H2SO4, 20 parts of water and 3 parts of aniline, and subjecting the articles to polishing.  After every ten immersions, the mesh may be cleaned by subjecting it to cathodic potential and brushing off any deposit formed during immersions.  The mesh may be corrugated or formed with a zig-zag cross-section for supporting particular shapes of articles; during immersion, the mesh is preferably vibrated.
Patent GB-1418434-A (GB)
Title: Gramophone pickup cartridge
IPC: H04R11/12
Filed: 1974-02-04
Abstract: 1418434 Stereophonic pick-up W O STANTON 4 Feb 1974 [29 March 1973] 05050/74 Heading H4J The unitary pole piece bridging arrangement of the stereophonic transducer described in Specification 1,245,031 (Pickering) is replaced by separate crossing bridging pieces 78, 80, Fig. 2, and the bridging pieces are screened one from the other at the crossing point by a non- magnetic conducting member 94 which provides also electrical connections between the bridging pieces and the cartridge casing. The cartridge has good channel separation up to 50 kc./s. and is suitable for quadraphonic systems.
Patent GB-200857-A (GB)
Title: Improvements in wireless telegraph receiving systems
IPC: H04B1/12
Filed: 1922-02-21
Abstract: 200,857. Round, H. J. Feb. 21, 1922. Atmospherics, eliminating or limiting.-In a system for eliminating atmospherics from graphic records of signals, an aerial, preferably highly directional, is coupled to two series of oscillatory circuits coupled in cascade. One of these series is tuned to the signals, the other is adjusted to have a resonance curve as similar as possible to but just not overlapping that of the first. At the end of the series the currents are rectified and opposed, and the resulting currents operate a recorder. Signals produce marks on either side of the zero line on the record, and the amplitude of the marks varies and becomes zero for a certain phase relation between signals and atmospherics. To avoid this, a second directional aerial spaced in any direction, a fair proportion of a wavelength from the first is connected to a similar receiving arrangement. Errors from the two aerials are seldom identical, and the currents from the two can be combined to produce a record in which every mark represents a signal. Specification 4125/09 is referred to.
Patent GB-208946-A (GB)
Title: Improvements in incandescent gas burners
IPC: F23D14/12
Filed: 1923-02-21
Abstract: 208,946. Rogers, R. J., and Bland Light Syndicate, Ltd. Feb. 21, 1923. Incandescent gas burners. -An incandescent gas burner comprises a burner head b, provided with outlets d in the side of an upper enlarged part and preferably with a central outlet in the top and adapted to be screwed up and down on an upper part 2 of a mixing-tube a so as to vary the distance between the top of the mixing-tube and the top of the burner head to control the flow of gaseous mixture through the outlets d. The head b can be rotated by a gallery c, adapted to support a mantle of the inverted type and a globe. Specification 193,471 is referred.
Patent GB-1056246-A (GB)
Title: Improvements in or relating to nuclear reactors
IPC: G21C3/04
Filed: 1964-02-06
Abstract: 1,056,246. Tubular heat exchangers. J. L. SELTORP. Feb. 6, 1964 [Feb. 6, 1963], No. 5116/64. Heading F4S. [Also in Division G6] A heat exchanger receives liquid magnesium - lead alloy from a nuclear reactor (see Division G6) and passes heat from this to a secondary coolant, 44À5% lead, 55À5% bismuth, primary coolant passing downwards through helical tube 49, and the secondary coolant passing from inlet 63 upwards through an annular space to outlet 64. The specific quantities of the coolants is such that the helix 49 is just buoyant and not significantly stressed; it is anchored to the heat exchanger base by links 65 joining together successive turns of the helix.
Patent GB-117469-A (GB)
Title: Improved Method of Drying Liquid Materials.
Inventor: CARR OMA
IPC: B01D1/18
Filed: 1917-04-13
Abstract: 117,469. Carr, O. April 13, 1917. Spray evaporators. - Liquid is preliminarily concentrated, and the concentrated liquid is dried, by spraying into the same current of gas. A large surplus of gas is supplied by a conduit b to the drying-chamber A to which concentrated liquid is fed by an atomizer e. After the dry product has settled out, the gas is led to the concentrating-chamber B to which liquid is supplied by spraying-devices C. The liquid sprayed into the chamber B also serves to wash out any solid particles entrained by the gas. The concentrated liquid is forced by a pump d from the chamber B to the chamber A. The gas flows through the apparatus at low velocity, and is caused to pass uniformly over the cross-section of the chambers by means of perforated walls f, h.
Patent GB-1141994-A (GB)
Title: Powder-containing preparations for application to the human skin
Inventor: SMITH ROBERT LEWIS
IPC: A61Q1/12
Filed: 1966-02-07
Abstract: 1,141,994. Medicinal &c. powders. PERMUTIT CO. Ltd. 6 April, 1967 [7 Feb., 1966; 12 April, 1966], Nos. 5303/66 and 16031/66. Heading A5B. [Also in Division C3] A powder-containing preparation for application to the human skin is claimed in which 5-95% by wt. of the powder particles are spherical polymer beads of average diameter 1-100Á. The polymer may be a copolymer of styrene and divinyl benzene with optionally hydroxy-ethyl acrylate, and the beads may be porous with a pore size of 300-10,000 Š. In examples the polymer beads were compounded with (1) magnesium stearate, (2) rice starch, ZnO and zinc stearate, and (3) as (2) using chalk in place of starch-to form a face powder; (4) boric acid, (5) as (4) with corn starch also-to form baby powders; (6) glycerol monostearate, glycerine and water-to form a powder cream; and (7) kaolin corn starch, boric acid, mixed t-butyl m- and pcresols and hexachlorophene-to form a fungicidal foot powder.