baber/WOPTO huggingface dataset:
Patent GB-264628-A (GB)
Title: Improvements in bricks and in the method of and machinery for making same
IPC: B28B3/26
Filed: 1925-11-16
Abstract: 264,628. Young, C. B. Nov. 16, 1925. Extrusion machines.-In pugmills for producing bricks with a core of cheap material and a casing of superior material, the core material is agitated by blades 8 and then delivered by the screw conveyer 6 through the die D. Vertical and horizontal screw conveyers 13. 15 respectively deliver the facing material into the space 16 surrounding three sides of the die D, and the combined column of clay is subjected to final pressure in the die 30. The brick produced is covered on one side and at both ends with the facing material. Reference has been directed by the Comptroller to Specifications 9039/87, 21913/00, and 19532/08.
Patent GB-255289-A (GB)
Title: Improvements in, or connected with, the wrapping of blocks, caramels, or like articles
IPC: B65D75/38
Filed: 1925-11-17
Abstract: 255,289. Rose, W., and Rose Bros. (Gainsborough), Ltd. Nov. 17, 1925. Packing caramels and the like. - Caramels and other articles containing unctuous ingredients are wrapped by first applying directly to the article 2 a strip 1 of white or coloured paper or metal foil so as to cover one or more of the sides but not the ends. At the same time, or subsequently, an outer printed wrapper 3 of transparent matter is applied to cover the article completely, and so that the printed matter is superposed over the inner strip.
Patent GB-323742-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J19/36
Filed: 1928-10-08
Abstract: 323,742. Franklin, C. S., Robb, J. G., and Golding, L. J. Oct. 8, 1928. Vacuum tubes.-A liquid-cooled anode of a discharge device is protected from erosion &c. by the provision of a readily detachable shield in intimate thermal contact therewith. Fig. 1 shows an anode 1 upon which is wound a spirally cut copper strip 2, secured at its ends by brass clamps 3 and rebated for half its width to obtain a smooth and fluid-tight construction. Flanges 5 support a sleeve through which the cooling liquid is passed. In a modified construction, the anode of a short-wave transmitting valve, having an oil-cooling jacket and air-cooling rings, is shielded by a plurality of longitudinal rebated sections clamped thereon at the ends. Specification 251,611 is referred to.
Patent GB-1034292-A (GB)
Title: Polycarbonates
IPC: C08K5/57
Filed: 1963-07-22
Abstract: Polycarbonates are stabilized by incorporating in them, during or after their manufacture, a mixture of (a) a tetraaryl tin compound and (b) a phosphite of formula <FORM:1034292/C3/1> where R1, R2 and R3 are alkyl or aryl radicals, unsubstituted or substituted by alkyl, alkoxy, cyclohexyl, alkyl-cyclohexyl or aryloxy radicals. The stabilizers may be added to the solid polycarbonates or a solution thereof (e.g. in methylene chloride, chloroform, dioxane or tetrahydrofuran) or may be present during a transesterification process for making the polycarbonates. Pigments (e.g. cadmium sulphide) may also be added.  Examples describe the stabilization of a polycarbonate prepared from bisphenol A and phosgene.
Patent GB-298495-A (GB)
Title: Improvements in air compressors
IPC: F04B39/00
Filed: 1928-10-08
Abstract: 298,495. Steurs, A. Oct. 8, 1927, [Convention date]. Actuating diaphragm pumps by fluid-pressure. -Compressed air is forced from a chamber 1 through a valve 12 to a reservoir by a bell-shaped rubber bag 2 held at its edges 3 and swelled out from contracted shape, shown dotted, to fill the reservoir 1 by pressure fluid delivered through the inlet 17 valve 20 and perforated partition 17. When the bag is fully swelled out to fill the reservoir, thus expelling all the air from the reservoir. the top of the bag tips up a plate 5 pivoted about 6 thus lowering a valve 8 from its seat 9 and allowing atmospheric pressure to act on top of the bag and in the pressure balancing pipe 30. The pressure in chamber 29, therefore, falls and piston 26 drops, opening valve passage 24 and closing valve 20 cutting off inlet water pressure. Water therefore flows from the bag through perforated partition 17 through passage 24 into chamber 31 down a suction column pipe 32 to a reservoir, while the chamber 1 receives a fresh supply of air through the ports 15 of the automatic rubber valve 16. When the bag 2 has emptied itself and contracted, plate 5 tips up, closing valve port 9 while the last quantity of water from the bag 2 rushing down the suction pipe 32 causes a suction in the chamber 31 thus lifting the piston 26 closing valve 24 and opening valve 20 to allow pressure fluid to pass through once more. The piston 26 has a rubber bag 28 on its underside.
Patent GB-248100-A (GB)
Title: Improvements in bread bins
IPC: A47J47/12
Filed: 1924-12-04
Abstract: 248,100. Simmons Holloware Co., Ltd., and Huyton, W. S. Dec. 4, 1924. Bottoms.-A bread bin has a separate bottom B formed with downwardly extending straight edges b which fit flush with the lower edge of the body portion A and are secured to the sides thereof by welding. Specifications 15988/87 and 127,411, [both in Class 21, Casks &c.], are referred to.
Patent GB-445564-A (GB)
Title: Bags of tea and other essence containing products, and method of making same
IPC: B65D81/00
Filed: 1934-10-11
Abstract: 445,564. Packing tea &c. in bags &c. HIRSCHHORN, L., 288, Southern Boulevard, Bronx, New York, U.S.A. Oct. 11, 1934, No. 29105. [Classes 94 (i) and 94 (ii)] In making bags or packets of tea &c., a strip of cotton or like material is folded at 11 and sewn with overlocking stitches to form an outwardly extending seam 12. The resulting tube is severed into lengths and sewn with a similar seam 15 to form a bag 14, which is filled through the mouth and closed by a seam 17. In the middle of the seam 17 the end 18a of a handle string 18 is secured by an aluminium rivet 19. The free end of the string carries a tag 20.
Patent GB-1143420-A (GB)
Title: Improvements in and relating to shoes
IPC: A43B7/28
Filed: 1966-06-29
Abstract: 1,143,420. Boots &c. S. J. WIKLER.. 29 June, 1966 [10 Aug., 1965], No. 29112/66. Heading A3B. An orthopaedic shoe is made on a last having a straight inner edge 97 in the region of the inner longitudinal arch, a toe region with diverging sides 99, 99, a flat plantar surface in the region of the waist 95 and a protuberance 98 on the outer edge in the region of the tuberosity of the fifth metatarsal. The instep region of the last reaches its maximum height in a plane parallel to the inner edge 97, the plane being nearer the inner edge than the outer edge. The inner edge of the last may be corrugated in the region of the inner longitudinal arch to render the shoe flexible in this area. The shoe may be a flat soled shoe or may have a raised heel in which case the shoe is provided with a shank stiffener (not shown) extending from the heel to a point behind the forth and fifth metatarsal phalangeal joints. The sole may be provided with raised supporting means e.g. a support 51 having a bevelled edge 56 extending beneath the fourth and fifth toes, a support 72 having bevelled edges 78, 80 extending beneath the outer longitudinal arch, and a support 26 having bevelled edges 44 extending beneath the inner edge of the heel.
Patent GB-1242464-A (GB)
Title: Process for preparing acrylic or methacrylic acid
IPC: C07C51/353
Filed: 1969-06-09
Abstract: 1,242,464. Acrylic and methacrylic acids. SOC. ITALIANA RESINE S.p.A. 9 June, 1969 [24 June, 1968], No. 29119/69. Heading C2C. Acrylic or methacrylic acids are prepared by passing a polyoxymethylene diester of formula where x is 1, 2 or 3 and R is a methyl or ethyl radical in the vapour phase over a catalyst comprising an inert carrier treated with an oxide, hydroxide or carbonate of one or more metals of Group IA, Group IIA of the Mendeleef Periodic Table or boron and/or aluminium; or a natural or synthetic aluminosilicate, a molecular sieve, calcium phosphate, magnesium phosphate, magnesium silicate or aluminium oxide in the presence of a diluent consisting of an inert gas and/or a saturated carboxylic acid corresponding to the carboxylic acid present in ester form in the polyoxymethylene diester. Lithium, sodium, potassium, magnesium, calcium or barium are the metals preferred and the diluent may be nitrogen, argon or carbon dioxide. The diester starting materials may be byproducts of the esterification of polyoxymethylene or from the reaction of paraformaldehyde or high molecular weight polyoxymethylenes with a carboxylic acid or anhydride in the presence of a strong acid catalyst, and diesters with the average value of x equals 2 are preferred.
Patent GB-1512045-A (GB)
Title: Television system comprising a video storage device and a television receiver
IPC: H04N5/445
Filed: 1975-07-11
Abstract: 1512045 Television PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 11 July 1975 [15 July 1974] 29224/75 Heading H4F Television receiver includes a circuit arrangement for receiving an identification signal that has been added to a television signal received from a video storage device, e.g. video tape or disc recorder, to thereby distinguish a signal received from a recorder from a signal received from a transmitter, and in response to recognition of an identification signal changes over circuits in the receiver. Specifically the time constant network of the line sync circuit flywheel filter is changed i.e. reduced, to the same condition as in the case of non-synchronization between received line sync signals and signals generated by the line sync circuit of the receiver. If the receiver simultaneously receives transmitted and recorded signals then recognition of an identification signal prevents display of the transmitted signal. The identification signal preferably comprises serrated horizontal sync pulses, Fig. 1g, although it may comprise alternately serrated horizontal sync pulses, Fig. 1f, or horizontal sync pulses with the trailing or leading edges thereof advanced or retarded Figs. 1b-1e with respect to the trailing and leading edges of standard horizontal sync pulses, Fig. 1a. Reference is also made to including a field frequency identification signal or by employing the sound channel as a means of identification.
Patent GB-236812-A (GB)
Title: Improvements in or relating to devices for facilitating the removal of clutches and the like from shafts
IPC: B25B27/00
Filed: 1924-12-06
Abstract: 236,812. Hanson, A. C. Dec. 6, 1924. Prizing - tools. - A device for facilitating removal of clutches from Chevrolet automobiles comprises a lever 7, pivoted at 8 between splayed arms 9 having adjustable extensions 11 to hook into slots in the clutch body 1, a clamp 14 sliding on the lever and carrying a bifurcated member 15 which engages and compresses the clutch spring 3, and a second lever 19 slidably pivoted on the first lever and provided with curved arms 22 for engaging the clutch collar clamp 23 to withdraw the clutch from the flywheel until the openings 6 therein are in alignment with the clutch spring retaining pin 5 which can then be knocked out.
Patent GB-1083226-A (GB)
Title: Improvements in and relating to friction disc clutches
IPC: F16F1/32
Filed: 1965-07-12
Abstract: 1,083,226. Friction clutches; springs. FORD. WERKE A.G. July 12, 1965 [July 13, 1964], No. 29461/65. Headings F2C and F2S. In a diaphragm spring friction clutch, particularly for motor vehicles, a presser plate 2 is connected to a clutch cover 3 by circumferentially arranged, clutch return, double-bowed, leaf springs 1 each secured at 4, 5, as by rivets, at its ends to the cover and at its centre to the front or rear of presser plate lugs 11, adjustment of the loading of the diaphragm spring 7 is by insertion of tolerance compensating shim caps 8 between rearward extensions 6 of the presser plate and the outer edge of the diaphragm spring. The caps 8 are shaped to fit the presser plate extensions 6 and have centre lugs (9) engaging depressions (10) of said extensions to prevent rotational displacement of the caps. A diaphragm spring retaining ring (12) comprises an outer flange (18) providing a rear spring pivot radially outside holes (17) in the diaphragm spring. Radially inwardlyextending diaphragm spring fingers (16) may have obtuse angled cross-sections, bent-up sides or as shown, slightly indented beads (15). The arrangement of the leaf spring connection assists presser plate and leaf spring cooling. The caps may be pressed on to the presser plate extensions, without dismantling the clutch, by slightly raising the presser plate.
Patent GB-533415-A (GB)
Title: Improvements in and relating to slip-in bags for young children
IPC: A41B13/06
Filed: 1939-11-06
Abstract: 533,415. Sleeping &c. bags. KAUFMANN, M. Nov. 6, 1939, No. 29466. [Class 133] A " slip-in " bag for young children, intended for use with a perambulator or a wheeled or other chair, comprises a double walled U-section main portion c, d of sufficient depth to receive the body and legs of the occupant, provided with a removable pad or filling n inserted through an aperture m; side portions e, which may also be double-walled and similarly provided with removable fillings and closed at the top by press-studs, may be attached to the edges of the main portion. A pocket f at the back of the main portion serves for attaching the bag to a chair &c. and if made of sufficient depth serves to contain a pillow or the like. Tapes for attaching the device to the chair &c. and a cord k passed through a hem j and adapted to be tied around the waist of the occupant are provided. The front portion c may be divided by a vertical slit closable by a sliding-clasp fastener. The bag may be made of or faced with waterproof material or.a waterproof covering may be detachably secured to the front face of the bag for use in rainy weather. By making the bag of larger size it may serve as a sleeping bag for adults.
Patent GB-1038657-A (GB)
Title: Wheeling device
IPC: B60B33/06
Filed: 1964-07-13
Abstract: An exercising bar frame hinged to a wall is provided with a wheeling device at the opposite end of the frame from the wall and is displaceable between an operative position and an inoperative position by an eccentrically centred manually operable lever.
Patent GB-1309975-A (GB)
Title: Electrical capacitors
IPC: H01R12/04
Filed: 1971-06-24
Abstract: 1309975 Capacitors SIEMENS AG 24 June 1971 [28 July 1970] 29618/71 Heading H1M In the manufacture of a stacked or wound capacitor comprising thermoplastic dielectric foils 1 and metal electrode foils 2 and 3, foils 2 or turns of foil 2 of one polarity extending towards one end face of the capacitor body, and foil or foils 3 being offset towards the other end, lead wire 4 is electrically and mechanically attached by electrically heating it while applying it to an end face and pressing it into the melting dielectric to buckle the projecting edges of foil layers 2 without contacting displaced foil layers 3, the heating being continued until alloying occurs between the lead wire 4 and foil layers 2. The dielectric material may be polystyrene, the electrode material aluminium and the lead wire tinned copper.
Patent GB-427559-A (GB)
Title: Improvements in the manufacture and use of cellulose derivatives
IPC: C08B3/22
Filed: 1933-10-26
Abstract: Organic esters of cellulose which have been partially ripened in an acid medium are subjected to further ripening in suspension in a medium comprising a base.  Suitable media are aqueous or alcoholic solutions of organic bases such as ethylene diamine, propylene diamine, diamino propanol, methylamine, ethylamine, dimethylamine, diethylamine, mono-, di-, and tri-ethanolamine, tetra-methyl- or ethyl-ammonium hydroxide, basic amino acid salts, as well as aniline, cyclohexylamine, pyridine, piperidine, and piperazine.  Other solvents or diluents for the base are benzene, toluene, xylene, or other aromatic, alicyclic, or aliphatic hydrocarbons, or ethers. There may be present also a swelling agent for the cellulose ester, and a number of these are specified.  The ripening in an acid medium may be carried out until the acetyl figure is 57--59 per cent or even as low as 54--55 per cent, corresponding to the commercial acetone-soluble cellulose acetate; further ripening in suspension in a basic medium then follows.  In an example, cotton linters are acetylated by means of acetic anhydride in the presence of acetic acid and sulphuric acid, ripening is carried out after addition of water until the acetyl content is reduced to 57--59 per cent, and the cellulose acetate is precipitated and suspended in an aqueous solution of methylamine until the acetyl content is 52--54 per cent. In a further example, a partially ripened cellulose acetate of acetyl content 56--57 per cent is suspended in an aqueous alcoholic solution of ethylene diamine until the acetyl content is reduced to 52--54 per cent.
Patent GB-1464983-A (GB)
Title: Analogue signal sample amplifier
IPC: H03M1/18
Filed: 1974-07-04
Abstract: 1464983 Analogue-to-digital conversion SOC D'ETUDES RECHERCHES ET CONSTRUCTIONS ELECTRONIQUES 4 July 1974 [5 July 1973] 29741/74 Heading H3H In an analogue-to-digital converter of the type disclosed in Specification 1,415,091, which includes an amplifier A113 for recirculating an analogue signal each time applying a predetermined gain G, errors are reduced by making a preliminary circulation of a zero input signal with a different predetermined gain to obtain an error signal which is subtracted from the input signal E before its circulation. The circulation loop may include two capacitor stores M124, M127 in series with an amplifier A125 of unity gain or of gain G, Fig. 3 (not shown), or two such stores in parallel, Fig. 4 (not shown), or a delay line (120b) in series with a loss-compensating amplifier, Fig. 5 (not shown). Theory is given showing the desired values of the resistors for all the cases.
Patent GB-400772-A (GB)
Title: Improvements in and relating to control system for low pressure gaseous electric discharge apparatus
IPC: H02M7/06
Filed: 1932-10-24
Abstract: 400,772. Converting. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. Oct. 24, 1932, No. 29744. Convention date, Oct. 24, 1931. [Class 38 (ii).] In arrangements for rectifying A.C. or for converting D.C. to A.C. and for similar purposes in which current is transmitted through arc discharge apparatus having provision for blocking the anode-cathode path for a predetermined period, the ignition voltage is raised above the normal operating voltage by means of negatively charged grids and ignition is effected at a predetermined moment by applying a high voltage to the anodes. In the rectifying arrangement shown, the grids are negatively charged by a battery 2 and high voltage ignition impulses are applied to the anodes from a condenser 5 which is alternately charged from a D.C. source 7 through contacts 10 of a rotary distributer and discharged through contacts 9 connected to the anodes of the rectifier. Alternatively the anodes may be ignited by high voltage impulses produced by spark discharge. Inductances 8 are introduced into the anode leads to prevent dissipation of the ignition impulses through the supply transformer. The grids, instead of being continuously negatively charged, may be connected to anodes of lagging phase so as to render the anodes under their influence non-conducting until an ignition impulse is applied. The Specification as open to inspection under Sect. 91 states also that ignition voltage may be raised above the operating voltage by narrowing the anode shields, building structures into the shields, or using a weak magnetic field to divert the electrons. This subject-matter does not appear in the Specification as accepted.
Patent GB-602429-A (GB)
Title: Improved method of splicing sheet or web materials
IPC: C09J127/08
Filed: 1945-11-07
Abstract: Sheet or web materials are spliced by overlapping them, locating a layer of a bonding agent composed wholly or mainly of polymerized vinylidene chloride adjacent one of the layers, and applying heat. The bonding agent may be a copolymer of vinylidene chloride and vinyl chloride.  Stabilization may be by pyridene, picoline, quinoline, nicotine, allyl sulphide, 2-methallyl disulphide, esters of acotinic acid such as tri-ethyl acotinate, tripyridyl and heterocyclic nitrogen compounds wherein the ring includes at least one double bonded nitrogen atom conjugated with a double bond not within the ring of the general formula <FORM:0602429/IV(a)/1> wherein -N=C< is included in the heterocyclic ring and wherein X is carbon or nitrogen and Y is carbon, nitrogen or oxygen. Specification 601,356 and U.S.A. Specification 2,224,944 are referred to.
Patent GB-1387889-A (GB)
Title: Olefin polymerization
IPC: C08F4/659
Filed: 1972-06-26
Abstract: 1387889 Olefin polymerization catalysts MONTECATINI EDISON SpA 26 June 1972 [25 June 1971] 29785/72 Heading C3P A catalyst for the polymerization of alphaolefins comprises a complex of an electron donor compound other than an ester of an oxygen-containing organic or inorganic acid with an aluminium trialkyl or with an aluminium alkyl containing 2 or more aluminium atoms linked through an oxygen or nitrogen atom and a halogen-containing compound of di-, tri- or tetravalent titanium, or a complex thereof with an electron donor compound, supported on an activated anhydrous dihalide of Mg or Mn, at least one of the electron donor compounds being a di or polyamino compound, the halogen-containing titanium compound and the support together having a surface area exceeding 3 sq. m. per g. or showing in their X-ray powder spectrum a broadening of the most intense diffraction lines observable in the X-ray powder spectrum (determined under identical conditions) of the corresponding non-activated Mg or Mn dihalide and the content of titanium compound expressed as Ti metal being less than 0À3 gm. atom per mole of the total amount of electron donor compound complexed in the catalyst. The Specification contains extensive lists of suitable electron donor compounds, aluminium alkyl compounds and titanium halides including those containing amino, alkoxy or carboxyl radicals and complexes of titanium halides with esters, ethers, ketones and nitro compounds. The support may further comprise an anhydrous compound of an element of Group I, II, III or IV of the Periodic Table. The polymerization may be carried out in the presence of hydrogen, alkyl halides or an organometallic compound of zinc or cadmium, in bulk or in inert diluents. In the examples propylene is polymerized in bulk in the presence or absence of hydrogen using as catalyst the product obtained by milling together anhydrous magnesium chloride and one of TiCl 4  or a complex of TiCl 4  with tetramethylethylene diamine, 1,2,4 - trimethylpiperazine or 1,4 - dimethylpiperazine tetraethylethylene diamine and reacting the milled product with aluminium triethyl reacted with one of tetramethylurea, diethyl sulphide, hexamethyl phosphoramide, tetramethyl ethylene diamine, diethyl ether, triethylamine, tri-n-butyl phosphine, dimethylethylene diamine acetophenone, acetone, 1, 2,4-trimethylpiperazine, ethanol, dibutyl ether, ethyl phenyl ether, 2(dimethylamino)pyridine or tetramethyl-o-phenylene diamine.