baber/WOPTO huggingface dataset:
Patent GB-1260073-A (GB)
Title: Fluorosilicone polymers
Inventor: SMITH ARTHUR GORDON
IPC: C10N30/00
Filed: 1970-06-02
Abstract: 1,260,073. Silanes, silanols, siloxanes. DOW CORNING CORP. 2 June, 1970 [1 Aug., 1969], No. 26513/70. Headings C3S arid C3T. [Also in Divisions C2 and C5] Novel silanes of the formula wherein X represents a hydrolysable radical, R represents H, a monovalent hydrocarbon radical optionally substituted by Cl, Br or I, or a radical R f CH 2 CH 2 -, R f  represents C 1-20  perfluoroalkyl, n represents an integer of from 1 to 20, a is 1, 2 or 3, b is 0, 1 or 2, and the sum of a and b does not exceed 3, are prepared by reacting CCl 3 (CF 2 ) n Br with ethylene and dehydrobrominating the product to give a compound CCl 3 (CF 2 ) n CH=CH 2  which is added to a siliconhydrogen bond in the presence of a platinum catalyst. X may represent halogen, hydrocarbonoxy, acyloxy, ketoxime, amino, hydrocarbonthio, nitrile, isocyanate, sulphate, carbamate or amino-oxy, and may be hydrolysed to give novel silanols corresponding to the above general formula in which X represents an OH group. The silanols may be subsequently polymerized to give corresponding polysiloxanes or may be copolymerized with other compounds to introduce additional units of the formula where c is 0, 1, 2 or 3 and Z represents hydrogen, OH, a hydrolysable group or an organic radical attached to the silicon through an Si-C linkage. In examples, HSi(CH 3 )Cl 2  is reacted with and the latter is hydrolysed to give the corresponding silanol This silanol is homopolymerized to give a hydroxyl-endblocked polymer having units of the formula which on further treatment with a vinyltriacetoxy-silane cross-linking agent and a dibutyl tin diacetate catalyst cures to an elastomeric gum having nonflammable properties and useful as a sealant. Alternatively, the silanol is refluxed with hexamethyldisilazane to give a viscous fluid polymer having the formula Uses.-Resinous products may be used as coating compositions; elastomeric products function as high temperature and radiationproof sealants; and fluid products are useful as lubricants and stable heat transfer media.
Patent GB-389541-A (GB)
Title: Improvements in or appertaining to optical comparators
IPC: G01B11/02
Filed: 1931-09-23
Abstract: 389,541. Linear -dimension gauges. STANDARD TELEPHONES & CABLES, Ltd. and STOCKS, H. R., Connaught House, Aldwych, London. Sept. 23, 1931, No. 26540. [Class 106 (ii).] An optical comparator comprises an adjustable anvil 14, and a movable member 13 which forms one side of a parallelogram linkage the opposite side of which is attached to or formed by the frame 2 the two remaining sides comprising flexible members 11, 12. When an object is placed between the anvil 14 and member 13 the latter is moved and since it abuts against a pin 7 passing through a vertical spindle 6 carrying a mirror 5 tilts the latter. Light from a source 1 after reflection from mirrors 3, 4 passes to the mirror 5 and thence after reflection from a mirror 8 to a scale 9. Screens 17, 18 are fitted. In a modification the mirror 5 is carried by a leaf spring secured to the frame and the arrangement of the light source and mirrors in the casing is modified. A finger-operated lever may be provided for opening the gap between the anvil 14 and movable member 13 to facilitate the insertion of the object.
Patent GB-444251-A (GB)
Title: Improvements in the saponification of organic esters of cellulose and of articles made thereof
IPC: D06M11/38
Filed: 1934-09-17
Abstract: Cellulose organic esters or filaments, ribbons, films, and the like containing them are treated with a saponifying medium containing a colouring agent which has an affinity for regenerated cellulose but none for the cellulose ester, until the materials have become coloured to a predetermined shade by said colouring agent, and the colour is thereafter stripped from the materials. Suitable colouring agents are cotton dyes capable of discharge by reduction, and a number of these are specified.  In a modification the materials are dyed before saponification with a dyestuff which has no affinity for cellulose, and saponification is continued until the original shade has decreased to a predetermined amount. Examples of suitable dyestuffs in this case are mono-carboxylic and mono-sulphonated azo dyestuffs.  In an example, a cellulose acetete fabric is saponified in a bath comprising caustic soda, sodium sulphite and benzopurpurine 4B.  From time to time test portions of the fabric are removed and compared with test pieces saponified to known degree and dyed under the same conditions.
Patent GB-1240411-A (GB)
Title: Pharmaceutically treated tab for application to the mucous membrane of a living organism
Inventor: WEINZ GERHARD
IPC: A61K9/70
Filed: 1969-05-27
Abstract: 1,240,411. Local dental anaesthetic device. G. WEINZ. 27 May, 1969 [31 May, 1968], No. 26726/69. Heading A5R. A device for anaesthetising a gum prior to an anaesthetic injection for dental operation comprises a tab saturated, or coated, with at least one anaesthetic agent, disinfectant agent and dye agent. The tab may be of paper, textile material, plastics material, or a mixture thereof, and is capable of adhering to a mucous membrane by moisture.
Patent GB-822251-A (GB)
Title: A method of etching the surface of a semiconductor or an electric device comprising said semiconductor
IPC: C23F1/40
Filed: 1957-08-26
Abstract: An etchant for semi-conductors and semi-conductor devices is composed of hydrogen peroxide, caustic alkali, and a metal sequestering agent such as potassium cyanide, sodium cyanide, ethlyenediamine tetra-acetic acid or poly-phosphoric acid. Hydrogen peroxide oxidizes the semi-conductor and the caustic alkali dissolves the oxide.  The metal sequestering agent prevents decomposition of the hydrogen peroxide by catalytic action of heavy metal ions which may derive from metal parts of the device being etched or from within the semi-conductor body, or may be accidentally introduced into the etching solution; it also prevents deposition of metal on the semi-conductor surface.  The etchant may comprise 0.1-30% of hydrogen peroxide, 0.01-20% of caustic alkali and 0.01-10% of the metal sequestering agent, and is preferably used at 15 DEG -50 DEG C.  The Specification contains results of using an etchant comprising H2O2 (5%), KOH (0.1%), EDTA (0.1%), H2O (ad 100%) at 35 DEG C to etch.
Patent GB-1040394-A (GB)
Title: Improvements in and relating to the manufacture of photo-sensitive films
IPC: G03C1/91
Filed: 1963-07-05
Abstract: 1,040,394. Photographic silver halide materials. KALLE A. G. July 5, 1963 [July 7, 1962], No. 26805/63. Heading G2C. A polyethylene terephthalate support is preswelled and then coated with a nitrocellulose composition containing an sulphonate salt of succinic acid partially or wholly esterified at the carboxyl groups with alkyl radicals of 3 to 18 carbon atoms, followed by a gelatino-silver halide emulsion layer. The support may be pre-swelled with an aqueous solution of trichloroacetic acid, chloral hydrate, resorcinol or trichlorophenol, which solution also may contain a wetting agent such as a sodium alkylsulphonate.
Patent GB-680270-A (GB)
Title: Improvements in hose couplings
Inventor: HARTLEY EMETT C
IPC: F16L33/22
Filed: 1950-11-03
Abstract: 680,270. Hose end fittings. PARKER APPLIANCE CO. Nov. 3, 1950, No. 26828/50. Class 99 (i). A hose end fitting comprises an insert 12 having a bore substantially equal to the bore of the hose 9, a thin cylindrical leading portion 15, and a tapered portion 14 rising to a screw-threaded portion 13 having rounded leading threads 17, and a sleeve 20 adapted to screw on to the insert, and having a counterbore 22 to receive the hose end, projecting ribs or screw-threads 24 in an intermediate portion of the counterbore fitting closely on the hose before assembly. The outer part 23 of the counterbore is spaced from the hose.
Patent GB-998652-A (GB)
Title: Sealing and insulating means for continuous casting starter bars
IPC: B22D11/08
Filed: 1964-06-29
Abstract: 998,652. Continuous casting - machines. UNITED STATES STEEL CORPORATION. June 29, 1964 [June 27, 1963], No. 26835/64. Heading B3F. A starter bar 12 includes a flexible heatresistant member 18, e.g. asbestos cloth for sealing the clearance between the bar and the mould, a chill plate 22, and a packing member 24, e.g. asbestos, sealing the clearance between the chill plate and the mould. Small particles of metal are placed on the top of the bar in the mould. Pins 28 are connectably secured to the head by taper pins 32.
Patent GB-1348162-A (GB)
Title: Decyl esters of prostaglandin e1 and e2 and production thereof
Inventor: YAMAMOTO K
IPC: C07C405/00
Filed: 1971-04-19
Abstract: 1348162 Decyl esters of PGE 1  and PGE 2  ONO PHARMACEUTICAL CO Ltd 19 April 1971 [15 April 1970 (2)] 26850/71 Heading C2C Novel decyl esters of prostaglandin E 1  and E 2  are obtained by reacting the free acids with diazodecane. Pharmaceutical compositions suitable for oral or parenteral administration, contain the above novel esters and suitable carriers or diluents. The compounds possess the ability to inhibit gastric juice secretion. Reference has been directed by the Comptroller to Specifications 851,827 and 1,040,544.
Patent GB-428210-A (GB)
Title: Improvements in or relating to fluid straining apparatus
IPC: B01D33/00
Filed: 1933-09-29
Abstract: 428,210. Strainers. ANDALE CO., 1600, Arch Street, Philadelphia, U.S.A.- (Assignees of McNeal, D. R.) Sept. 29, 1933, No. 26871. Convention date, Feb. 20. [Class 46] [See also Group XXVIII] A cleansing compartment through which the parts of a rotary strainer pass successively for cleansing by reverse flow is provided with sealing plates of rubber or similar resilient material to prevent leaking of the liquid under treatment into the compartment. A rotating disc strainer comprises a straining element 22, formed by winding together a flat and a corrugated strip and held in position on a wheel having a hub 13, spokes 14 and an outer rim 15 by a second wheel having a hub 16, spokes 17 and an outer rim 18. The hub 13 is keyed on a shaft 10 extending through a casing formed of upper and lower parts 43, 27 bolted together. Fluid supplied through an inlet connection 32 passes through the strainer to an outlet connection 39. Inner casings A, B are arranged opposite one another on either side of the straining element, so that as the element rotates the sections of the element between adjacent spokes are successively cleaned by flow of fluid from the casing A to the casing B. The casings A, B are bolted on to the lower portion 27 of the outer casing and the inner spaces of the casings are connected respectively by passages in the part 27 with pipes 51, 49, Fig. 3, for the supply and discharge of the cleansing fluid. On the side towards the straining element the casing A has a cover plate 59 and over that a plate 62 of rubber or other resilient material which makes joint with the spokes 17. Cleansing fluid from the casing A passes through a slot in the plate 59 and an aperture in the plate 62 which is sector-shaped to correspond, with the space between adjacent spokes 17. The casing B has a similar cover plate 70 and plate 71 of resilient material both provided with sector-shaped openings. The plates 62 and 71 are of such a size as to contact simultaneously with at least four spokes of the wheel and thus make an effective joint against the passage of liquid under treatment or cleansing fluid. Joint is made between the rim 15 and the inner wall of the outer casing by means of a rubber ring 81 which may be vulcanized on a metallic ring 82 carried by the rim 15. More than one pair of casings A, B may be provided. In a modified form of apparatus, for use when a liquid under pressure is being strained, the plates on the face of the casing A have no passages therethrough and impurities separated by the strainer are drawn.off through the casing B without the aid of cleansing fluid.
Patent GB-995262-A (GB)
Title: Improvements in or relating to cathode-ray oscillographs and like apparatus
IPC: H01J29/70
Filed: 1962-07-13
Abstract: 995,262. Cathode-ray tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. July 13, 1962 [July 13, 1961], No. 27018/62. Heading H1D. To amplify the deflection in a cathode-ray display apparatus, cf. an oscilloscope, there are provided, in the electron beam path beyond the deflection system D, two magnetic systems comprising pairs of parallel, rectangular pole faces P, P<SP>1</SP> producing parallel, but opposite, fields, the larger dimension of the first pair P being at right angles to the electron gun axis, and the larger dimension of the second pair forming a marked angle therewith. As shown, the two systems produce equal and opposite fields and between the first pair of pole faces P the angular deflection of the beam is amplified but a mean deflection 40 is superimposed. The second pair of pole faces P<SP>1</SP> are at an angle # 0  to the gun axis and provide further amplification of the beam deflection, the mean direction of the emergent beam being parallel to the gun axis. In an alternative arrangement, Fig. 3 (not shown), the field intensity between pole faces P<SP>1</SP> is greater than that between pole faces P so that the beam when not subjected to an initial deflection impinges on screen E on the gun axis at point I. To avoid astigmatism, the beam is focused by two independent systems of electrodes H, V forming lenses in the vertical and horizontal planes. Specification 650,044 and French Specification 866,058 are referred to.
Patent GB-318635-A (GB)
Title: Improvements in machines for the manufacture of card clothing
IPC: B21F45/10
Filed: 1929-09-06
Abstract: 318,635. Despa et Fils, (Assignees of Gohy, J.). Sept. 7, 1928, [Convention date]. Cards, wire.-A machine for the manufacture of card clothing of the kind in which a row of teeth across the width of the cloth is shaped simultaneously and subsequently inserted simultaneously in the foundation comprises a drum 1, Fig. 1, rotated intermittently by a star wheel 9 and roller 12 on the main shaft 11. The drum is provided with a number of rows of radial holes 5, the number in each row corresponding to the number of teeth to be inserted in the cloth 6 in each row. A number of parallel wires 37 are seized by moving grippers 36 and carried forward to stationary nippers 35. The length of wire projecting beyond the nippers 35, and held thereby, is engaged at the centre by a member 19 sliding in a guide 16 and forced into a hole 5 in the drum. At the same time a knife 17 descends and severs the length of wire. The member 19 presses home the wire to double it, and is then withdrawn. The drum then rotates a step and brings the wire to a pair of nippers 22 which cross the two legs of the wire and give them a definite parallel position when released. The drum rotates further and brings the teeth into position to be inserted in the clothing. The clothing is pierced by needles 28 on an arm 27 which is lifted up and pressed forward. The teeth are engaged by punches 31, carried by a slide 32 mounted inside the drum, and are pushed forward, turned through 90‹, to bring the legs into the same horizontal plane, and then pushed through guide holes 30 in the member 26 into the pierced holes in the clothing 6. The bend in the teeth is obtained by pushing them over the stop 29 against the inclined member 39.
Patent GB-339613-A (GB)
Title: Improvements in or relating to electrically driven gramophones
IPC: G11B17/00
Filed: 1930-05-31
Abstract: 339,613. Powell, V. May 31, 1930. Rotary machines.-The underside of a gramophone turntable 1 has a number of electromagnets each consisting of an iron core 2 and winding 3, the commutator 5 being mounted on a boss 1<a>. The field magnets 9 with segmental pole-pieces 8<a> are fixed on a supporting member 7. The axes of the magnets 3, 9 are parallel to the axis of the turntable 1. The member 7 carries a bearing casing 6 for the turntable spindle 4, the upper part of the casing 6 having insulated carbon brushes 18 bearing upon the commutator.
Patent GB-1176431-A (GB)
Title: Process and apparatus for Cutting Discs from a Hard Material
Inventor: KRANICH WERNER
IPC: B28D5/04
Filed: 1968-06-07
Abstract: 1,176,431. Grinding. ELEKTROMAT VEB. 7 June, 1968, No. 27112/68. Heading B3D. A process for cutting discs from hard material, such as a semi-conducting crystal rod 7, comprises performing a relative movement between at least one blade 3 and the rod which is partly immersed in a lapping emulsion, the rod performing an additional oscillating movement so that a surge of lapping emulsion is applied directly on to the dividing cut between the rod and the blade. In apparatus for carrying out the method, a plurality of spaced steel blades 3 are reciprocated at high frequency by a vibrator 6, the blades being mounted in bearings 4, 5. The rod 7 to be cut is mounted in a carrier which is reciprocated along a guideway in the directions of the double arrow and mounted on a rod 10 slidable in a pivoted guide 11 which imparts the additional oscillation to the rod 7.
Patent GB-873369-A (GB)
Title: Improvements relating to nuclear reactors
Inventor: SMITH DEREK RANDALL
IPC: G21C19/04
Filed: 1957-08-28
Abstract: 873,369. Nuclear reactors. A.E.I.-JOHN THOMPSON NUCLEAR ENERGY CO. Ltd. Oct. 21, 1958 [Aug. 28, 1957], No. 27118/57. Class 39(4). In a reactor which is re-fuelled whilst in operation and in which the fuel elements are stacked one above the other in a coolant channel, one or more by-pass passages for coolant flow are provided parallel to part of the channel length to increase the cross-sectional area of the coolant path at that part of the channel. The, arrangement serves to reduce the force of the coolant which would otherwise act in an excessive manner upon the last removed element(s) due to its increased velocity. As shown, a fuel channel 4 containing fuel elements 5, 6, 7 has bypass passages 10, 11 formed in the moderator block 2 by baffles 12, 13, the ends of the channel parts in the blocks 1, 3 being enlarged at 16, 17 to lead into the passages 10, 11. Guide grooves 8, 9 are provided for the fuel element carriages. In modification (Figs. 3, 4, not shown) the baffles are omitted and the by-pass passages are formed wholly by the material of the block 2.
Patent GB-1029087-A (GB)
Title: Semi-permanent memory device
IPC: G11C17/02
Filed: 1963-07-09
Abstract: 1,029,087. Read-only stores. HITACHI Ltd. July 9, 1963 [July 10, 1962], No. 27187/63. Heading G4A. A semi-permanent memory device comprises digit lines and word lines, each of the latter being provided, at the intersections with digit lines, with loops having sides parallel to the digit lines for storing " 1's " and intersecting the digit lines at right-angles without forming loops for storing " O's." Figs. 3a, 3b (not shown), show a memory unit consisting of two printed-circuit boards, one having digit lines on one face and word lines on the other, and the other board having word lines on one face. The word lines on the second board have loops positioned over the digit lines on the first board (when the boards are juxtaposed) and a bit is stored by perforating through either a loop (for " 0 " or the wire shorting it (for " 1 "). If a word driving line is pulsed (for read-out) a voltage is induced in those digit lines having the loops above them in that word driving line unperforated. A stack of these memory units may be formed, mutually separated by magnetic shielding plates. A diode matrix (Fig. 5, not shown) is used for selecting a memory unit and a word driving line in it in response to signals from address decoders fed by address registers each having a terminal for receiving information from a computer. Data read out on the digit lines goes to a memory register having an output terminal (Fig. 4, not shown).
Patent GB-813237-A (GB)
Title: Means for resiliently mounting an axle box or the like on a vehicle chassis
Inventor: BROOM ANDREW
IPC: B61F5/30
Filed: 1957-08-29
Abstract: 813,237. Axle box mountings. LENNING (PROPRIETARY) Ltd., E. C., and BROOM & CO. (PROPRIETARY) Ltd., A. Aug. 29, 1957, No. 27291/57. Classes 103(6) and 108(2) An axle box is mounted on a vehicle chassis 24 by means of a pair of V-shaped resilient members 9 disposed between complementary-shaped locating means 6 associated with the axle box and similarly shaped retaining means 13 connected to the chassis 24. In Figs. 1 and 2, the means 6 consist of projections 4, 5, 6, 7, of a housing 1 split in a plane disposed at right angles to the axle box axis. The means 13 comprise angle-section members 13, 14 which are pivotally mounted on the chassis 24 by pins 21. Resilient buffers 25, 25, are disposed between each member 13, 14 and the vehicle body 27. In a modification (Figs. 3 and 4, not shown), there is no housing 1, and the projections 4 to 7 are replaced by a single pair of projections integral with the axle box. The respective upper limbs of the members 13, 14 are provided by an integral, member which is welded to the chassis. The lower limbs are provided by surfaces of an arcuate shaped bracket which-is bolted. to the upper member. The upper limb of each resilient member 9 is thicker than the lower limb.
Patent GB-847487-A (GB)
Title: Improvements in bolt-tensioning tools
Inventor: NEVILLE SIDNEY
IPC: B25B29/02
Filed: 1956-09-06
Abstract: 847,487. Wire strainers. METROPOLITANVICKERS ELECTRICAL CO. Ltd. Aug. 20 1957 [Sept. 6, 1956], No. 27335/56. Class 45. [Also in Group XXII] A tool for tensioning a bolt or stud (not shown) during the screwing-up or unscrewing of a nut comprises a cylinder-and-pitson unit 22, 23 and means 31 for securing the unit operatively to the bolt for tensioning the bolt when liquid under pressure is admitted to the cylinders. The bolt-engaging bush 31 is mountd in a cylinder-block 23, between a pair of pistons 22 for engaging the part to be bolted. A pump (not shown) supplying oil to the cylinder, may be mounted on the tool or connected to the tool by a flexible pipe. The Provisional Specification describes also two single-piston tools, the annular piston of one of which surrounds the bolt and abuts the part to be secured.
Patent GB-1076392-A (GB)
Title: Process for treating electrolytically chromated metal surfaces
IPC: C25D11/38
Filed: 1965-06-28
Abstract: The electrolytic deposit of hydrated chromium oxide formed by deposition from a chromic acid electrolyte on a metal surface is made corrosion resistant by treating the still wet coated metal after rinsing in an aqueous solution containing a total of 1 to 100 grams per litre of at least one water soluble compound selected from alkanol amines, alkyl amines, aromatic amines, polyalkylene polyamines, hydrazine and its alkyl derivatives and alkali metal salts of amino-carboxylic acids.  The metal is rinsed and then dried. Preferably the treatment solution is at 30 to 70 DEG C. and immersion lasts for 1 to 60 seconds.  The treatment may be applied to iron, steel, aluminium, chromium, nickel, zinc, tin and their alloys. Examples of chromating bath compositions and conditions and examples of suitable amine compounds and immersion baths are given.
Patent GB-362987-A (GB)
Title: Process for the manufacture of azo dyestuffs
IPC: C09B29/20
Filed: 1930-09-12
Abstract: Azo dyes; azo dyes, forming on the material.--Azo dyes are made in substance or on the fibre by coupling a diazotized amino-2-alkoxycarbazole with an arylide of 2 : 3-oxynaphthoic acid. Blue shades are obtained.  In examples the following dyestuffs are produced on cotton (1) amino-2-methoxycarbazole --> the anilide, (2) amino-2-ethoxy-9-methylcarbazole --> the b -naphthalide. Specification 282,682, [Class 2 (iii), Dyes &c.], is referred to. Amino-2-alkoxycarbazoles are obtained by nitration of the corresponding alkoxycarbazoles advantageously in acetic anhydride and reducing.  Amino-2-ethoxy-9-methylcarbazole is made by methylating nitro-2-ethoxycarbazole with dimethylsulphate in alcoholic alkaline solution and reducing.