baber/WOPTO huggingface dataset:
Patent GB-1465623-A (GB)
Title: Thermoplastic resin extruder die plate
IPC: B29C48/04
Filed: 1974-04-11
Abstract: 1465623 Pelletizing die USS ENG & CONSULTANTS Inc 11 April 1974 [11 April 1973] 16300/74 Heading B5A A metal die plate for the underwater pelletization of thermoplastics, comprises extrusion passages 14 disposed between reinforcing ribs formed on the upstream side of the passages 14 and comprising radially extending ribs 15 interconnected by part-annular, or rectilinear ribs 16 extending between adjacent ribs 15. The ribs 15, 16 reinforce the die plate against deflection arising from the temperature differential between the upstream and downstream faces of the die plate. The interconnecting ribs 16 may be ¢ the thickness, and up to 2/3 the depth of the radial ribs 15. The passages 14 extend over 1/5 to 2/3 the overall thickness of the die plate. The die plate is heated by steam or oil circulated between alternate inlet and outlet passages extending radially, preferably in the area of the ribs 15, and which are interconnected by transverse, i.e. part annular, passages 22 extending in the area of the ribs 16. The passages 22 are of variable cross-section to equalize their heating effect, and are formed by milled grooves closed by metal members 24 which are secured by welds 25. A wear resistant facing 19 is provided against which operate the blades of pelletizing apparatus mounted to a die plate bore 18. Two or more rows of passages 14 may be provided intermediate adjacent ribs 16, with the passages 14 of adjacent rows being staggered. The passages 14 may be of 0À06 to 0À10 inch diameter. The ribs 15, 16, have chamfered upstream edges. Plugs 30 may be inserted to render inoperative, e.g. the innermost and outermost pairs of orifice rows.
Patent GB-586129-A (GB)
Title: Improvements relating to photoflash lamps
IPC: H01K1/46
Filed: 1943-10-08
Abstract: 586,129. Electric lamps. BRITISH THOMSONHOUSTON CO., Ltd. Oct. 8, 1943, No. 16488. Convention date, Oct. 10, 1942. [Class 39 (ii)] [Also in Groups XXI and XXXVI] In a photoflash lamp of special construction, several forms of which are described, [see Group XXI], the neck of the bulb is closed by a rimmed cap 23 through which pass current leads 25, the space between the rim of the cap and the neck 21 and the apertures in the cap through which the leads pass being sealed by plastic material 33, such as a vinyl acetate resin having special specified properties. The cap 23 is preferably made of a moulded thermosetting plastic composition (suitable examples of which are mentioned), or it may be of glass &c. The parts of the leads which pass through the cap 23 may, as in the construction shown in Fig. 13, be fixed in and insulated from the cap by fused vitreous material 111 to facilitate the sealing of the leads 25 of the various constructions of lamps into the caps 23 by means of plastic material, an assembly plate made of refractory composition is used, the plate having a number of recesses to hold the caps (with the leads inserted in position) while the sealing plastic, in powdered form, is filled into the caps, the loaded plate being then placed in an oven to fuse the plastic, which is afterwards allowed to set by cooling. Finally, the bulb and the cap with its associated parts are assembled together after the bulb has been exhausted and charged with the required gas filling. Before this is done, heating the neck of the bulb and re-fusing the plastic in the cap are necessary. The Specification, as open to inspection under Sect. 91, describes also apparatus for carrying out the above-mentioned final assembly operations. The apparatus, Fig. 14 (Cancelled), comprises a hollow block 90, the chamber in which is rimmed at the top by an elastic sealing- ring 91, and in the base of which is mounted a plunger 93. This carries a socket 92 to receive the cap 23 of the lamp. The chamber contains a ring of resilient fingers 102 for centring the neck of the lamp bulb, and a gas duct 108 opens into one side of the chamber. In use, after the cap 23 and the neck of the bulb have been heated, the cap is placed on the socket 92. The bulb is then placed in position in the block as shown, is evacuated by exhausting air through the pipe 108, and oxygen or other suitable gas is afterwards admitted. The plunger 93 is then raised to press the cap 23 against the neck of the bulb, and the plastic is allowed to harden. This subject-matter does not appear in the Specification as accepted.
Patent GB-1217829-A (GB)
Title: Preparation of l-tyrosine
IPC: C12P13/22
Filed: 1969-03-28
Abstract: 1,217,829. Preparation of L-tyrosine by fermentation. KYOWA HAKKO KOGYO K.K. 28 March, 1969 [29 March, 1968], No. 16491/69. Heading C2C. L-tyrosine is obtained by culturing aerobically a hydrocarbon-assimilable microorganism requiring phenylalanine for its growth in a culture medium containing a hydrocarbon as the major carbon source and the L-tyrosine produced is recovered from the culture medium. Suitable strains used in the process may be Corynebacterium hydrocarboclastus, and Arthrobacter paraffineus. The nitrogen source may comprise ammonium nitrate, ammonium chloride, ammonium sulphate, ammonium carbonate, ammonium phosphate or urea. The carbon source in the culture medium is preferably an aliphatic hydrocarbon containing 10 to 25 carbon atoms, a mixture of at least two such aliphatic hydrocarbons, kerosene or gasolene.
Patent GB-846857-A (GB)
Title: Lubricating composition
Filed: 1959-05-15
Abstract: Xanthates of the formula RO.CSS(CH2)n COOH, where R is an alkyl radical having 4-20 carbon atoms and n is an integer of 1-3, are prepared by treating an alcohol ROH with CS2 and a metal hydroxide, preferably a hydroxide of a Group I or II metal, in a slight excess of the alcohol at 40-60 DEG C. the xanthate product is filtered and washed and condensed with a salt of a suitable halogenated organic acid, the salt being treated with a strong acid to obtain the free acid of the above formula.  The products are used as additives to lubricating oils (see Group III).ALSO:Lubricating oil compositions comprise a lubricating oil and from 0.1 to 10% by weight of an additive of formula RO.CSS(CH2)nCOOH where R is an alkyl radical having 4-20 carbon atoms and n is an integer of 1-3.  The base oil may be any mineral or synthetic oil which may also contain other additives, such as agents for lowering the pour point, viscosity index improvers, anti-oxidants and colouring material.  The examples use a paraffin oil as base oil, and in some instances the additive of the above formula is used in conjunction with 2,6-di-tert, butyl-4-methyl phenol.
Patent GB-186395-A (GB)
Title: Improvements in the manufacture of small sheet metal articles by pressing
IPC: B21D35/00
Filed: 1921-06-20
Abstract: 186,395. Smith, A. H. June 20, 1921. Chains; nuts; pens.-In a machine for making articles by a crank operated die from sheet metal 30, fed by rollers driven by cam and ratchet mechanism, the stationary die 1 is provided with a positively operated ejector 14 and may comprise an outer tool for cutting out the blank and one or more inner tools for piercing it as described in Specification 186,875 for making chain links, while the moving die 25 may be integral and move horizontally so that the completed article will fall away when ejected. The strip is fed by a pair of adjustable rolls 61, 62 which are rotated intermittently by a spring-controlled ratchet lever 56 having a roller 55 at its lower end engaged by a cam 54 on a longitudinal shaft rotated by bevel gear from a crank shaft. The ejector 14 may be pressed forward to eject the finished blank by a cam 66 on the longitudinal shaft which engages a lever carrying an adjustable ball.pointed screw 71 which engages the end of the slide 15. The ejector may be returned positively or by the movable die, and a cushioning spring 74 may be used. In another form of apparatus the ratchet lever may be connected by an elongated slot 86, Fig. 4, to a connecting rod. 85 secured to an adjustable crank 84 on the crank shaft and the lever carrying the screw for operating the ejector may be attached by a link 79 to a lever 77 which is held by a spring 78 in contact with a cam 75 on the crank shaft. The ejector may be operated to eject the blank by a spring such as 74 compressed by the movable die during the operative stroke. It is normally retained by a shoulder on the interior of the die 1. The Provisional Specification describes also similar dies for making pens and nuts.
Patent GB-1201833-A (GB)
Title: Method and device for determining the content and granulometric composition of the insoluble constituents of bitumen
IPC: G01N33/42
Filed: 1968-04-08
Abstract: 1,201,833. Granulometric analysis of bitumen mixtures; centrifugal separators. "BORAL" INDUSTRIE EN HANDELSONDERNEMING. 8 April, 1968 [7 April, 1967 (3)], No. 16861/68. Headings B1D, B1X and B2P. Bitumen is sorted into a soluble constituent and particles of various size ranges, prior to granulometric analysis, by first mixing the bitumen in a centrifugal strainer (Fig. 13) with chloroethene, pumped from reservoir (10) through inlet 33, while the strainer drum assembly 21, 22 rotates slowly until soluble matter is dissolved, the drum being then driven faster to expel the solvent, and undissolved particles below a certain size, through screw-in sieves 27 in drum lid 23, from which the solvent and particles flow through chamber 28 and outlet duct (3) to a solid-bowl centrifugal separator (Fig. 4), whose inlet is bridged by a sieve 47. The liquid flows up and down an array of concentric tubes 52, 53, 54, as shown by arrows, which are lined by removable paper sleeves on which the particles collect for subsequent removal. Both the strainer and separator are totally enclosed, and gas-liquid separators (4, 7) are provided on their respective liquid outlet sides (Fig. 1, not shown). The centrifugal strainer comprises a housing which can be tilted to place the drum axis vertical for filling of the inner, perforate, drum 21 with bitumen. The mixing and centrifuging are performed with the axis horizontal. Drum 21 prevents large solids from reaching outer, imperforate drum 22 or sieves 27. The drum assembly 21, 22 is rotated through a belt drive engaging the drum floor with peg 38, while the respective drum lids 26, 23 are rotatably supported by a bearing system 29 .. 32 on the lid 17 of the fixed housing. The housing has heaters 45 to assist the dissolving process. After centrifuging the drum assembly is removed from the housing and emptied, to provide the particles for granulometric analysis. The particles in tubes 52 to 54 are removed and weighed.
Patent GB-567522-A (GB)
Title: Unitary grid assembly for ice freezing trays
IPC: F25C1/24
Filed: 1942-11-27
Abstract: 567,522. Icemaking. KLEEN, N. E. AF. Nov. 27, 1942, No. 16893. Convention date, Feb. 2, 1942. [Class 29] A removable grid for a domestic ice - making tray 11 has transverse partitions 15 rigidly attached to a resilient middle top bar 20 adapted to be flexed to spread apart the partitions by means of levers 32, 30 pivoted at 27, 40 respectively to the spring bar and connected by pin 38 and slot 37. The endmost partition may be stayed by a strut 45. A longitudinal partition extending over a part or the whole of the tray is made in sections 16, slotted at 21, Fig. 8, to fit over slots 22 on the transverse partitions and having tongues 24 and holes 23 to connect them together. The transverse partitions have lugs 19 welded &c. to the spring bar. Specification 514,580 is referred to.
Patent GB-388978-A (GB)
Title: Process for the manufacture of pure titanium dioxide
IPC: C01G23/053
Filed: 1932-06-15
Abstract: Titanium dioxide of high colouring power and capable of easy filtration is obtained from solutions of titanium sulphate by treating the solution before precipitation with a liquor possessing a nucleating action prepared either by hydrolysis of a solution of titanium sulphate in which orthotitanic acid has been dissolved but in which a pH value of 2 has not been exceeded, or by neutralizing a solution of titanium sulphate with alkali so that a pH value of 2 is not exceeded, redissolving the precipitated titanium in the mother liquor, and hydrolysing the clear solution.  The liquor from which the nuclei are hydrolysed out may contain from 10-30 grms. of sulphuric acid and 30-60 grs. of titanium oxide per litre, and the ratio of titanium to sulphuric acid be from 2 : 1 to 5 : 1.  The nuclei are precipitated at a temperature below 95 DEG  C., and 1-6 per cent of nucleus liquor may be added to the main solution to be hydrolysed. Specification 310,949 [Class 1 (iii), Oxides &c., Metallic], is referred to.
Patent GB-1427684-A (GB)
Title: Apparatus for wet treatment and subsequent drying of textiles
IPC: D06B9/02
Filed: 1974-04-18
Abstract: 1427684 Wet treatment and drying apparatus BRUCKNER - APPARATEBAU GmbH 18 April 1974 [4 May 1973] 16982/74 Heading D1L Solvent used in the wet treatment of fabric webs is recovered during drying of the web by evaporating the solvent, transferred from the wet treatment zone, into the circulating hot air stream used for drying. Solvent may be applied to the web 1 in the wet treatment zone 2 by means of the transfer roller 4 partly immersed in the solvent reservoir 5. The wetted web may be dried either whilst being passed through the elongated drying zone 3 by conveyor 6 (Fig. 1) or by being passed around the perforated drum 6' (Fig. 2). Solvent from the reservoir 5 is passed via valved line 8 to the evaporation dish 7 disposed in the drying zone, so that the solvent can be evaporated into the hot air stream circulating in the drying zone 3 or 3'. The dish 7 may have a removable foil cover 9.
Patent GB-380127-A (GB)
Title: Improvements in or relating to telegraph systems
IPC: H04L13/06
Filed: 1931-06-11
Abstract: 380,127. Automatic exchange systems. CREED & CO., Ltd. and THOMPSON, A. E., Telegraph House, Croydon. June 11, 1931, No. 16984. [Class 40 (iv).] In telephone systems in which a message can be printed at a subscriber's station when the subscriber is out, exhaustion of the roll of printing paper operates a switch to give a break-in signal to the transmitter and operate a local alarm. In the arrangement shown in Fig. 1 the line is broken at 9 and an alarm circuit is closed at 8 when the contact 6 snaps over. This occurs when the exhaustion of the paper supply permits the lever 3, 11, to which contact 6 is connected through spring 10, to turn about pivot 4 into the dotted-line position. In a modification, Fig. 2 (not shown), the paper roll 1 is mounted on the moving carriage of a page-printer. The spring-operated switch 10, 6 is then dispensed with and the arm 11 moves, when the paper is exhausted, into such a position that at the end of the carriage-return movement it strikes against a pivoted switch arm to effect the necessary changes. In another arrangement, Fig. 4, the paper 32 passes between two guide-pins 31 and when exhausted pulls the empty spool against these pins so as to turn the arm 29 counterclockwise about pivot 30 and to bring the projection 35 into such a position that at the end of the carriage-return movement this projection strikes against a pivoted switch arm 16. In a further modification, Fig. 3 (not shown), applicable to a spool which, like that shown in Fig. 11, is axially stationary, the arm 29 itself carries the movable switch contact. The spool 1 is carried in a cradle 28 which moves axially being resiliently connected to the carriage 25.
Patent GB-314661-A (GB)
Title: An improved sign, tablet, showcard and the like
IPC: G09F13/04
Filed: 1928-06-12
Abstract: 314,661. Beville, W. J. June 12, 1928. Changing by alteration in view-point of observer. - In order to give changing colour effects as the observer moves, slats 4 of coloured glass are interposed between a stencil 1 and diffusing glasses 2 lighted by lamps 3. In daylight signs of the forward stencil type the slats 4 are arranged as shown. They may either be inclined or at right angles to the stencil. Slats may also be superposed on the stencils of davlight signs of the overhead type. In some cases they may be opaque.
Patent GB-318947-A (GB)
Title: Improvements in electric resistance units
IPC: H01C1/148
Filed: 1928-06-13
Abstract: 318,947. Standard Telephones & Cables, Ltd., (Western Electric Co., Inc.). June 13,1928. Resistance coatings; variable resistances.- Electric resistances for use as leaks &c. comprise a base 1 of insulating material with an external or internal continuous helical thread in the valley portions of which is an unbroken patch of resistance material, end connections being made by caps 8 and helical springs 4, 5 threaded on to the base 1 and turned to vary the resistance. A base 1 of unglazed porcelain may be coated with graphite by applying a paste or by dipping or spraying, the tops of the thread 3 being bared, by turning or grinding, to form a helical resistance. Conducting caps 8 cemented to a tubular casing 13 are connected to the graphite by wire helices 4, 5 of the same pitch as the thread 3, one or both helices being adjusted during manufacture before soldering the helix to the cap. In. a modification, the thread 3 is on the interior of a tubular base receiving the end-caps, the tube 13 being omitted.
Patent GB-1455742-A (GB)
Title: Linguistic self-teaching device
IPC: G09B5/06
Filed: 1974-04-19
Abstract: 1455742 Playback of card-form records; teaching apparatus HSING-CHING LIU and CHING-HUEI WEI 19 April 1974 17329/74 Headings G5R and G5G A selected one of a plurality of sound tracks on a stationary card-form record is played back according to the position of the record in the playback apparatus. As shown, a card 5 having a picture 512 and associated words 511 in different languages on its upper surface and corresponding sound grooves 521 on its underside is selectively positioned in a recess 111 in the top of a casing 1 by lodging projections 54, 54<SP>1</SP> in a selected pair of notches 114, 114<SP>1</SP>. Permanent magnets 53, 53<SP>1</SP> secure the card and close contacts 46, 47 to start a battery-powered motor M which, through a friction clutch 29, 32, swings a playback stylus 21 along the selected sound groove 521, activating a speaker diaphragm 23. Contacts 43, 44 are opened to stop the motor at the end of playback, and manual depression of a button 35 retracts the lower clutch member 32 to allow a spring 25 to return the stylus 21 to its starting position.
Patent GB-539925-A (GB)
Title: Improvements in or relating to apparatus for mixing and whipping liquids
Filed: 1940-12-05
Abstract: 539,925. Whipping or mixing machines. UNITED STATES RUBBER CO. Dec. 5, 1940, No. 17348. Convention date, Dec. 5, 1939. [Class 86] Apparatus for whipping aqueous dispersions of rubber &c. comprises a container and a whipping member which are independently driven in the same direction; a removable resilientlysupported scraper is provided for the side of the container which is mounted on a wheeled truck, hydraulic lifting gear being provided for lifting the container into operative position. The container 12, Fig. 1, is carried on rollers 50 on a frame 37 mounted on a ram ; the container is rotated by a motor 47, and is supported for removal on a wheeled truck 15. The whipping- member 13, comprising a cage-like structure fitted with a propeller 54, is detachably mounted on a shaft 58 driven by another motor 70. The scraper 14, shaped to the side and bottom of the pan, is provided with a rubber edge and is laterally supported by a link 74; the scraper is carried by a spring-influenced lever 97, Fig. 7, and is under the influence of a spring 102. The apparatus is enclosed in a chamber 10 supplied with air by a blower 16 and with steam from a jet 17, which may be used to heat the container.
Patent GB-403421-A (GB)
Title: Improvements in shuttleless looms
IPC: D03D45/50
Filed: 1932-06-20
Abstract: 403,421. Looms with stationary weft supplies. BRITISH CELANESE, Ltd., 22, Hanover Square, London, and POOL, W., c/o British Celanese, Ltd., Spondon, near Derby. June 20, 1932, No. 17367. [Class 142 (ii).] Shuttleless looms having suction means for seizing the weft ends and tensioning the weft during the beat-up are provided with means for maintaining a degree of suction at the loom and further means for applying additional suction suddenly at the instant the weft ends are to be seized. The invention is described in connection with a loom of the type described in Specification 360,818 wherein suction orifices 13, 14, Fig. 1, provided on the lay beneath the cloth selvedge, communicate through conduits 15, 16, 17, 20 with a suction main 21 adapted to serve a number of looms. A suction vessel 19, having a filter bag 18 to collect the severed weft ends, may be provided for each loom of a series, but, if the same quality or type of weft is used throughout, the weft ends may be collected in a common receiver 23. The suction at the orifices 13, 14 is increased intermittently by means of an auxiliary oscillating air pump 28 which is operatively connected to the crank shaft of the loom and is connected to the conduit 17 by a pipe 32. The pump cylinder 35, Fig. 3, is carried by a pivoted cradle 36 having machined faces 49, 51, 52 that are kept in close contact with similar faces on a supporting bracket 48 by a coil spring 53. The timing of the pump is such that on the upward stroke of the piston 58, a port 73, communicating with the cylinder 35, is swept across a port 75 connected to the conduit 32 and additional suction is thereby applied to effectively seize the weft ends. On the return stroke the cylinder is exhausted to atmosphere through a port 76, Fig. 5. A filter, in the form of a perforated tube covered with porous filter cloth, disposed on a T-piece 33, Fig. 1, at the junction of the conduits 17 and 32 prevents entry of the severed weft ends into the cylinder 35 and any weft ends tending to cling to the filter are lifted by a small influx of air introduced from the atmosphere through a port 84, Fig. 5. The supporting bracket 48 may be formed with a double set of ports, as shown in Fig. 5, so that it can be used at either side of the loom. Specification 391,159 also is referred to.
Patent GB-146206-A (GB)
Title: Improvements in or relating to window holders
IPC: E05C19/10
Filed: 1920-06-26
Abstract: 146,206. Heckert, E. Feb. 14, 1916, [Convention date]. Stays.-A hook or stay h for holding open a window d is formed with an integral guard-arm g which is separated from the fang of the hook by a short gap i and yields when the fang is inserted in or withdrawn from the staple e. The end of the fang or the guard-arm may be tapered. Two or more hooks of different length may be mounted in the same staple a.
Patent GB-374634-A (GB)
Title: Improvements in or relating to plant supports
IPC: A01G9/12
Filed: 1931-06-16
Abstract: 374,634. Treatment of growing plants. WEST, L. E., 25, The Chase, Norbury, London. June 16, 1931, No. 17423. [Class 6 (ii).] In plant holders or supports adapted for use in pairs, each holder consists of a stake 1 with a half-hoop member 2 standout at an angle thereto and secured at its centre to the stake by a socket 3, and the ends of the half-hoop members are formed with hooks 4 or with eyes 5 for engagement with eyes or hooks upon the half hoop of a fellow holder. The socket 3 may be adjustable on the stake or riveted, welded, or otherwise fixed thereon. The upper end of the stake may be bent, as at 6, or formed with a handle to facilitate pressing into the soil. The eyes on one holder may be arranged vertically and engaged by outwardly projecting hooks on the other.