baber/WOPTO huggingface dataset:
Patent GB-555409-A (GB)
Title: Improvements in structural materials
IPC: D21J1/16
Filed: 1941-12-29
Abstract: 555,409. Structural material used as substitute for wood and metal. ANGEL, E. R. Dec. 29, 1941, No 16749. [Class 140] [Also in Group XXIII] Shaped products such as flat or curved panels produced ordinarily from, e.g. wood or metal are produced from a fibrous material which has been impregnated with a liquid binder comprising a synthetic thermosetting resinous composition or a natural or synthetic thermoplastic resinous composition, or natural 'rubber or a rubber substitute with or without vulcanizing ingredients by drying the impregnated material subjecting it to heavy pressure, e.g. by calendering to increase its density preferably to about unity and then moulding and hardening under lower pressure The binder is preferably used in quantity slightly in excess of that required to fill the voids in the material. The material treated may be any fibrous material in sheet form, e.g. absorbent paper or cellulosic or non- cellulosic textiles; 4-ply kraftpaper, regenerated cellulose, cellulose derivatives wool, silk, and asbestos are mentioned. The thermosetting resin may be of the phenol-aldehyde or ureaaldehyde class, and anti-oxidant or vulcanizers &c. may be added. Untreated laminae, e.g. wood veneers may be incorporated either as facing or as intermediate laminae. The material may be used as a weather-resisting skin on a plywood or other structure, of lower weather-resistance.
Patent GB-450670-A (GB)
Title: Improvements in or relating to hydraulic transmission apparatus
IPC: F16H39/32
Filed: 1934-10-17
Abstract: 450,670. Hydraulic transmission of power. GUINNESS, E. E., Allendale, Coalway Road, Wolverhampton, ELWELL, M., The Laurels, Tipton Road, Woodsetton, Staffordshire, and WATTS, R. C., Cleveland Works, Cleveland Road, Wolverhampton. Oct. 17,1934, Nos. 16758 /36 and 16756/36. Divided out of 450,595. Drawings to Specification. [Class 69 (ii)] In hydraulic transmission mechanism having a vane pump and a vane motor with means for varying the power transmitted, the vanes are arranged for rolling contact with stator surfaces. The forms of transmission described are the same as in Specifications 450,625 and 450,671, and one form is the same as that described with reference to Figs. 1-7 of Specification 450,595. Specification 430,159, [Group XXVI], also is referred to.
Patent GB-982234-A (GB)
Title: Preparation of 2,3,4-trichlorobut-1-ene
Inventor: HAWKINS EDWIN GEORGE EDWARD
IPC: C07C17/10
Filed: 1962-05-02
Abstract: 2,3,4-Trichlorobut-1-ene is prepared by passing chlorine gas into 1,3-dichlorobut-2-ene containing a free radical inhibitor, specified inhibitors being t-butyl-catechol, 2,6-di-t-butyl-4 - methylphenol, 2,6 - di - t - butyl - a  - di-methylamino - p - cresol, phenothiazine and N,N1 - di - b  - naphthyl - p p phenylenediamine. Dichlorobutanes are produced as by-products. Examples are given.  A comparative example omits the free radical inhibitor.
Patent GB-1451719-A (GB)
Title: Powdered bleaching detergent composition
IPC: C11D3/39
Filed: 1974-04-17
Abstract: 1451719 Detergent bleach composition KAO SOAP CO Ltd 17 April 1974 [17 April 1974] 16795/74 Heading C5D [Also in Division D1] A detergent bleach composition in powder form, having good storage stability, and comprising one or more surfactants, one or more builders and sodium percarbonate, is characterized in that (a) at least 60% by wt. of the detergent components have a particle diameter larger than 250 microns, the copper content being less than 2 p.p.m. and the iron content being less than 5 p.p.m. and (b) at least 60% by wt. of the sodium percarbonate has a particle diameter larger than 250 microns. In Example 1, the detergent components contain sodium alkyl benzene sulphonate, sodium tripolyphosphate, sodium silicate, sodium carbonate, carboxymethyl cellulose, fluorescent dye, perfume and sodium sulphate.
Patent GB-487103-A (GB)
Title: Toy-hand-grenade
IPC: F42B27/08
Filed: 1937-06-17
Abstract: 487,103. Toys. ARNOLD, C. June 17, 1937, No. 16845. [Class 132 (iii)] A toy hand-grenade with spring-controlled firing pin b and handle pin c provided with lateral projection g for engaging in an indentation or behind a projection h of the plate i to tension the spring d, is characterized by the provision on the handle pin c of a disc f of slightly larger diameter than the casing a of the grenade to ensure that the grenade explodes although it may not fall on its head. The cartridge is introduced into the casing a through an aperture l.
Patent GB-577317-A (GB)
Title: The manufacture of styrene polymers and interpolymers
IPC: C08F4/28
Filed: 1942-11-27
Abstract: Styrene, alone or in admixture with one or more other compounds of a polymerizable olefinic nature in an amount not exceeding that of the styrene, is polymerized in an aqueous medium in presence of persulphuric acid or a water-soluble persulphate and of an oxy-acid of sulphur with reducing properties or a water-soluble salt thereof or an addition-compound of such a body with an aldehyde or ketone. Compounds of a polymerizable olefinic nature are defined as containing the group >C=CH- and include esters, nitriles and amides of acrylic, a -chloracrylic, methacrylic, maleic, or fumaric acid, vinyl ethers and vinyl esters of inorganic or organic acids and unsymmetrical dichlorethylene. Suitable persulphates are the ammonium, sodium or potassium salt. Suitable salts of oxy acids of sulphur with reducing properties are alkali metal or ammonium sulphites, hydrosulphites, sulphoxylates, pyrosulphites, bisulphites and thiosulphates. The polymerizable material may be dispersed and/or dissolved in the aqueous medium, which may consist of water, with or without a miscible solvent such as ethyl alcohol, and may contain an emulsifying agent such as a soap, or water-soluble salt of sulphonated fats and oils, or of esters of fatty alcohols, or water-soluble cellulose ethers.  The aqueous medium may be weakly acid or alkaline.  The reducing sulphur compound should be present in sufficient quantity to ensure its presence and that of the persulphate throughout a substantial proportion of the time of polymerization.  The reaction may be performed in a closed vessel from which air may have been displaced by an inert gas, e.g. nitrogen or carbon dioxide.  Plasticisers, e.g. dibutyl phthalate or tricresyl phosphate may be present during the polymerization. The product may be obtained as a suspension of particles which may be filtered and dried or as a latex-like dispersion which may be coagulated with an electrolyte, e.g. sodium chloride, or as an aqueous solution or suspension which may be evaporated to dryness. Examples describe the preparation of polystyrene in presence of (1) ammonium persulphate and sodium sulphite; (2) ammonium persulphate and sodium hydrosulphite of a copolymer of styrene and diethyl fumarate and of a copolymer of styrene and ethyl acrylate in presence of ammonium persulphate and sodium sulphite.
Patent GB-1079831-A (GB)
Title: Improved manufacture of viscose rayon filaments
Inventor: MYTUM ERNEST
IPC: D01F2/06
Filed: 1963-04-30
Abstract: 1,079,831. Regenerated cellulose filaments. COURTALDS Ltd. April 29, 1964 [April 30, 1963], No. 16918/63. Heading B5B. Extensible viscose rayon filaments are made by extruding viscose through a multihole jet into an acidic coagulating medium to form imcompletely regenerated filaments, stretching the filaments in such a way that the stretched filaments are incompletely regenerated, relaxing the filaments, in contact with a swelling agent, for a period of at least 3 minutes, and subsequently completing the regeneration. A swelling agent is defined as causing lateral swelling of an incompletely regenerated cellulose filament to a greater extent than water, without disrupting the fibre structure to the extent that it dissolves or to the extent that two adjacent filaments are rendered mutually adhesive and coalesce during the process. Specified swelling agents are aqueous solutions of alkali metal hydroxides, especially up to 2% caustic soda, caustic potash, 2% lithium hydroxide and quaternary ammonium bases, e.g. tetramethyl ammonium hydroxide, tetraethyl ammonium hydroxide or tetra-n-butyl ammonium hydroxide, but calcium thiocyanate and zinc chloride solutions may also be used. In examples, viscose which may contain an amine/ethylene oxide adduct and polyethylene glycol is spun into coagulating baths containing sulphuric acid, sodium sulphate and zinc sulphate, withdrawn, stretched to a ratio of 1À6-2À05, relaxed in contact with the swelling agent and regeneration completed in acid baths in known manner.
Patent GB-200337-A (GB)
Title: A new or improved variable speed gear
IPC: F16H3/66
Filed: 1922-06-20
Abstract: 200,337. Turnbull, D., and Withers, A. T. June 20, 1922. Variable-speed gearing comprises pairs of racks 20, 20<a> reciprocated with variable amplitude and driving through one - way devices comprising worm gearing. Thus rack 20 oscillates a pinion 22 to which a wormwheel 24 and an internal gear 26 are secured. A worm 30 is carried by a revoluble frame 40 which also carries a toothed train adapted to drive the worm from the gear 26. When the worm-wheel 24 moves in one direction, it binds against and drives the worm solidly and so drives the frame 40. Movement in the opposite direction causes the gear 26 to drive the worm, which slips over the worm-wheel, which is thus allowed to return idly. The arrangement is made doubleacting by the other rack 20<a> and other trains 25, 31, 27, &c., the same frame 40 being driven. The frame 40 is secured at 46 to a driven or intermediate shaft 10. The driving-shaft 12 carries a casing 13 which carries in guides 15 a reciprocal slide 16 to which the racks 20, 20<a> are secured. The slide 16 engages also blocks 68 upon an eccentric sheave 43 which turns within a non-rotary bearing 44 the eccentricity of which is adjusted to vary the speed transmitted. The double-acting worm one-way device is duplicated on the right of the eccentric 43, the casing 13 there shown turning solid with the first casing 13, and the two sets of gearing are co-ordinated by an epicyclic train 50, 53, 51 to drive a disc 56 with constant speed. This through a train 57, 58, 60, 65 drives a tail shaft 67.
Patent GB-576467-A (GB)
Title: Improvements in and relating to road surfaces, road foundations and similar layers
IPC: E01C7/08
Filed: 1939-06-09
Abstract: A mixture of blast furnace slag and blast furnace sludge (obtained by washing blast furnace gas already treated in dry dust separators) is used in making road foundations or surfaces. Suitable fillers such as stone-chippings, gravel or sand may be added and the mixture may be first pressed into blocks.
Patent GB-1363380-A (GB)
Title: Apparatus for internally sealing pipe sections
IPC: F16L55/163
Filed: 1972-04-13
Abstract: 1363380 Pipe joint seals WEGNER & CO and H MARKS 13 April 1972 17040/72 Headings F2P and F2G The joint between pipes 1, 3 is internally sealed by a resilient sleeve 5 having axially separated annular sealing surfaces 6. Cavities 8 are disposed radially inwardly from surfaces 6 and communicate with the base of the sleeve via ports 10 and with the respective ends of the sleeve via ports 11. Annular slits 7 are incorporated into the sealing surfaces 6. In use, the cavities 8 bear annular reinforcements 9 and are filled with an expanding cement via ports 10. A pipe 14 bearing collars 15 is inserted in the sleeve and the collars are inflated with compressed air to bear on the inside of the sleeve inwardly of the sealing surfaces 6. Excess cement is extruded via ports 11. The expanding nature of the cement ensures even sealing of surfaces 6 against distorted or damaged pipe walls. After deflation of the collars 15 the pipe 14 and collars are removed. The expanding cement may be a plastics material which is expanded on setting by a foaming agent. The seal is suitable for circular or oval pipes. The pipe 14 bearing collars 15 is of similar cross section to the joint being sealed.
Patent GB-244351-A (GB)
Title: An improved core arrangement for use in casting hollow concrete walls
IPC: E04G11/18
Filed: 1925-07-03
Abstract: 244,351. Dorkin, C. W., McGinty, P., and Bradshaw, H. July 3, 1925. Moulding walls in situ.-Core shutters for casting hollows in concrete walls have clips a disposed on their inner faces adapted to receive prongs h<3> projecting from a spacing bar H which is forced between opposed plates to secure them in position. To prevent bulging of the plates. they are further stiffened by distance-pieces K supported on the tops of the outer shutters. Handles c are also provided on the upper edges of the shutters and joint cover plates are secured to alternate shutters.
Patent GB-682808-A (GB)
Title: Improvements in or relating to modulation control circuits for modulated carrier wave transmitters
Inventor: RICH CHARLES WILFRED
IPC: H03C1/06
Filed: 1950-07-07
Abstract: 682,808. Cathode-ray oscillographs; modulation measurements. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 4, 1951 [July 7, 1950], No. 17095/50. Class 37. [Also in Groups XXXV and XL (c)] An automatic modulation control circuit for a carrier wave transmitter is provided with means for indicating or displaying the A.C. and the D.C. components of the rectified carrier wave. The transmitter output feeder 20 is connected to a rectifier 2 with a load impedance comprising a transformer 7 and a resistor 8. Output taken from the transformer secondary coil 11 and the resistor 8 feeds a second rectifier 14 and provides at 19 a control voltage which is used to prevent excessively deep modulation. The cathode of the diode 2 is earthed for carrier frequencies by a condenser 9, and the resistor 8 is shunted for signal frequencies by a condenser 10. The voltage across the impedances 7, 8 is taken through a lead 25 to a deflecting electrode of a double-beam C.R. tube 24 and displays the A.C. signal voltage W on its screen, the D.C. voltage being suppressed by a condenser 26. The voltage across the resistor 8 is transferred through the lead 23 to an electrode associated with the second beam of the C.R. tube, and displays the rectified carrier voltage as a line L. Suitable meters may be substituted for the C.R. tube.
Patent GB-1529939-A (GB)
Title: Method of verification of magnetic records
IPC: G06K19/12
Filed: 1975-10-06
Abstract: 1529939 Reading record cards EMI Ltd 6 Oct 1975 [16 Oct 1974] 17122/78 Divided out of 1529937 Heading G5R An object purporting to be a security document comprising a layer with a permanent structure in the form of selected spaced regions within which magnetically anisotropic material is aligned in a distinct direction and other regions wherein the material is unaligned or aligned in another distinct direction, are investigated by a process comprising the steps of reading and storing any information recorded on any such medium and, in order to assess veracity of the object, magnetizing any such layer to above its coercive force value with a unidirectional magnetic field and detecting the resultant magnetic remanence pattern. Initially a magnetic field may be applied to record a production signal of known form into the magnetic medium, any such recorded production signal being read with said information and of comparing the read-out production signal with the known form to detect any anomalies of the form as can be caused by simulation of a permanent alignment remanence pattern by variation in the thickness of the material.
Patent GB-247456-A (GB)
Title: Improvements in boiler cleaners
IPC: F28G3/16
Filed: 1925-07-03
Abstract: 247,456. Fairweather, H. G. C., (Whitte more, Hulbert, Whittemore, & Belknap). July 3, 1925. Cleaning, fluid-pressure processes for.-The supply of cleaning fluid to a boiler cleaner is controlled by the flow of the boiler feed water through the feed-water supply pipe by means of a water-meter B, Fig. 3, one of the dials of which has a spring contact 12 which at first bears against a neutral post 15, but, when a predetermined amount of water has passed, snaps past this post to a post 19, thereby completing an electrical circuit which operates to open a solenoid valve 25, Fig. 1, and admits steam to the blower on one side of the boiler, after which the spring contact is again forced forward to a post 19 to close a second circuit which opens a second solenoid valve 28 and operates the blower on the other side of the boiler. The blower has a head C slidably mounted on a rotating shaft 41, and is projected forwards by the pressure of the cleaning fluid. The nozzles 52 of the blower are inclined at different angles and communicate in turn with a steam port 51 so that different zones of the boiler shell are swept. The shaft 41 is slidably secured in a sleeve 40 of a spurwheel 39, Fig. 6, rotated by a worm 38 driven through a spur-wheel 37 and reduction train E from a turbine 34, Figs. 4 and 5, to which steam is led through a by-pass 32, Fig. 1. The backplate 54 of the shaft 41 is resiliently mounted on springs 55 and a thrust bearing 58 is provided to take up end pressure. In modifications, the blowers with rotatable heads are replaced by blowers oscillated by suitable mechanism, or non- rotating, non-retracting or non-oscillating blowers may be employed. Also any number of blowers can be operated simultaneously or in any preferred sequence.
Patent GB-822615-A (GB)
Title: Improvements in or relating to a method of converting gaseous or liquid hydrocarbonsinto gases consisting substantially of low-molecular weight carbon compounds and hydrogen
IPC: C01B3/38
Filed: 1956-06-04
Abstract: 822,615. Combustible gases. GERHOLD, M. June 4, 1956 [June 7, 1955], No. 17168/56. Class 55 (2). In a process for converting gaseous or liquid hydrocarbons into gases consisting of low molecular weight carbon compounds and hydrogen the hydrocarbons are first cracked at a temperature of at least 500‹ C., preferably 600-750‹ C., in the presence of a cracking catalyst and the gaseous products of the cracking are reacted with oxidizing gases, preferably in the presence of a dehydrogenating catalyst and at a temperature of 700-900‹ C., to form the required gases. Steam, air or oxygen or mixtures thereof may be used as the oxidizing gas and it and the starting materials may be preheated. External heat may be supplied to the process, e.g. by causing an electric current to flow in the walls of the reaction chamber. Cracking catalysts which may be used are oxides of aluminium, magnesium, zinc, cadmium, silicon, boron, tin, lithium, titanium, beryllium, zirconium or molybdenum alone or mixed with each other. The cracking and dehydrogenating catalysts may be formed into shaped heattransmitting bodies which may be heated to the desired reaction temperature outside the reaction chamber in which they are employed and circulated therethrough. The contact time for the whole process may be less than 15 seconds, e.g. 3-10 seconds, 1/2-1/3 of this time being employed for the cracking stage. Olefins which may comprise 30-50% of the products of the cracking stage may be separated therefrom and the residual gases only passed to be reacted with the oxidizing gases. Hydrogen in an amount up to 10% by weight of the starting material may be introduced into the cracking stage, e.g. by recycling some of the final gas produced to the cracking stage.
Patent GB-355394-A (GB)
Title: Checks for doors, windows or the like
IPC: E05F5/02
Filed: 1930-06-04
Abstract: 355,394. Door &c. checks. MEAD, F. W., Norwood, Streetsbrook Road, Solihull, Warwickshire. June 4, 1930, No. 17178. [Class 65 (i).] A door, window, or like check comprises spaced wedge surfaces which frictionally receive a cooperating part of the check before the door &c. finally closes and which can be manually adjusted to vary the checking effect. In one form, a block 6 of hard rubber &c., carried by a bracket 3 on the door, engages between a triangular bracket 8 and plate 10 on the door frame 7. Two corners of the plate 10 are attached with interposed washers 11 to bosses 9 on the bracket and a fixed bolt extends through the remaining corner of the plate and bracket and is provided with a nut 13 for adjusting the plate. A spring may be interposed between the nut 13 and the plate 10. A spring 17 may be provided for automatically closing the door and, preferably, retaining it in an open position after opening to a predetermined extent. The ends 19 of the arms 18 of the spring are bent at right-angles to engage in bosses 20, a tab 22 being provided for disengaging the spring. In a second form, the block 6, Fig. 3, is mounted in a bracket 3 constituted by two angle-section pressings and the wedge surfaces are formed on a bracket 28 of channel section, the base 29 being cut away and the sides 31 flared outwardly at 32 where the block enters. The distance between the sides 31 is adjusted by means of a bolt and nut 34 for varying the checking action. A closing spring 26, which may be provided internally with a telescopic or other control rod, is secured by split pins 27 to the brackets 3, 28 so as to be enclosed within the channel when the door is shut.
Patent GB-353172-A (GB)
Title: Improvements relating to non-microphonic light-sensitive cell construction
IPC: H01L31/08
Filed: 1930-06-04
Abstract: 353,172. Light-sensitive cells. CONSTABLE, F. H., St. John's, Cashio Lane, Letchworth, Hertfordshire, and RADIOVISOR PARENT, Ltd., 26, Coventry Street, London. June 4, 1930, Nos. 17190 and 17192. [Class 40 (iii).] In a cell having a light-sensitive resistance and an enclosing envelope mounted in a cap or holder, vibration damping or absorbing means is incorporated to prevent mechanical vibrations of audio frequency received by the cap from being transmitted by the cell. The light-sensitive cell 1 is carried on asymmetrical supports 4, 5 mounted in a pinch 6. The cell envelope 7 is supported in a valve holder 10 by means of a resilient collar 9 of sponge rubber or composed of a pliable wax. In alternative forms, Figs. 2, 3 (not shown), the cell resistance element is mounted in heavy clips carried on supporting members which may be attached to the clips at their centres. In a further form, Figs. 4 and 4a, a glass rod 11 is secured to extended supports 4, 5 and the light-sensitive resistance 1, carried in clips 2, 3, is freely suspended by thin wire straps 12, 13. The valve holder may consist of a thick rubber sleeve to which the neck of the cell envelope is secured by an adhesive.
Patent GB-866652-A (GB)
Title: Improvements in or relating to caps for containers
Inventor: MARKES DOUGLAS HENRY
IPC: B65D43/02
Filed: 1959-05-20
Abstract: 866,652. Closure caps. METAL BOX CO. Ltd. Feb. 16, 1960 [May 20, 1959], No. 17223/59. Class 125(3). A cap of resilient plastics material having a crown 1 and an annular skirt 2 is formed with an annular plug 3 of wedge-section extending from the interior of the crown, and an annular bead 4 of wedge-section on the interior of the skirt. The surfaces 5, 6 of the plug and bead respectively converge towards the axis of the cap, the rim of a container being inserted between said surfaces 5, 6 so that a seal is effected between the plug 3 and the inner wall of the container and between the bead 4 and the rim of the container.