baber/WOPTO huggingface dataset:
Patent GB-824418-A (GB)
Title: Improvements in or relating to the polymerization of olefines and catalysts therefor
IPC: C08F10/00
Filed: 1957-05-01
Abstract: Polymerization catalysts are prepared by mixing (1) a halide of titanium, zirconium or hafnium; (2) an organometallic compound of formula MRn, where R is a hydrocarbon radical and M is one or more metals of Ia, IIa or IIIb of the Periodic Table; and (3) a halide of a metal of Group IIIb, IVb, Vb or VIII of the Periodic Table, in a liquid hydrocarbon diluent.  In examples, ethylene and propylene are polymerized using catalysts prepared by mixing titanium tetrachloride with aluminium tribromide and lithium aluminium tetraheptyl, titanium tetrachloride with tin tetrachloride and diphenyl magnesium, titanium tetrachloride with antimony pentachloride and diphenyl magnesium, titanium tetrachloride with ferric chloride and diphenyl magnesium, titanium tetrachloride with cobaltous chloride and diphenyl magnesium, and titanium tetrachloride with tin tetrachloride and lithium aluminium tetraheptyl.ALSO:Terminally unsaturated hydrocarbons are polymerized using a catalyst prepared by mixing (1) a halide of titanium, zirconium or hafnium; (2) an organometallic compound of formula MRn where R is a hydrocarbon radical and M is one or more metals of Ia, IIa or IIIa of the Periodic Table; and (3) a halide of a metal of Group IIIb, IVb, Vb, or VIII of the Periodic Table, in a liquid hydrocarbon diluent.  The polymerization is carried out using 0.001 to 10% of catalyst by weight of the monomer, in a hydrocarbon diluent, at 0 DEG  to 300 DEG  C. and at a pressure between 1 and 200 atmospheres.  In examples, ethylene and propylene are polymerized using catalysts comprising titanium tetrachloride, aluminium tribromide, lithium aluminium tetraheptyl, tin tetrachloride, diphenyl magnesium, antimony pentachloride, ferric chloride, and cobaltous chloride.
Patent GB-1078546-A (GB)
Title: Improvements in or relating to data processing devices
IPC: G06F7/535
Filed: 1966-03-30
Abstract: 1,078,546. Arithmetic means. INTERNATIONAL BUSINESS MACHINES CORPORATION. March 30, 1966 [April 5, 1965], No. 13968/66. Heading G4A. Cyclically-operable arithmetic means performs an arithmetic operation on a first operand and a multiple of a second operand during each cycle, the result selecting a multiple for use with said result during the next cycle. In a pure-binary non-restoring divider, respective registers receive the 8 high-order bits of the normalized divisor (register D8-DC), the normalized divisor (M), 3/2 times the normalized divisor (L), and the dividend (K). The dividend register (K) is used for storing the successive partial dividends produced by a carry-lookahead adder-subtractor supplied during each cycle with the contents of the dividend register (K) and (to its true/complement input) 0, 1/ 2 , 3/4, 1 or <SP>3</SP>/ 2  times the divisor, this multiple being obtained by gating either or neither of the two "divisor" registers (L, M) directly or with a one-bit right shift to the adder input. The multiple is selected during the previous cycle by decoding the 6 highorder bits of the divisor and dividend (in the first cycle), the dividend being replaced for this purpose during subsequent cycles by six high-order half-sums from the adder. The six half-sums from the adder are decoded as though there is a carry into the lowest of the six positions and as if there is not, one of the two multiples so specified then being selected by the presence or absence of the carry. During each cycle two bits of quotient (or three if the <SP>3</SP>/ 4  multiple was used) are gated into a quotient register (J), the quotient bits depending on the multiple used, and whether the partial dividends (or dividend) applied to the adder and produced at the adder output were true or complement. A counter controls position of insertion of the quotient bits into the quotient register (J), and a left-4 shift therein every other cycle. When three quotient bits are generated during a cycle, one bit from the next cycle is discarded.
Patent GB-514570-A (GB)
Title: Improvements in or relating to chairs, settees and the like
IPC: A47C3/02
Filed: 1938-05-10
Abstract: 514,570. Spring upholstery. BATES & SONS, Ltd., J. W., and BAILEY, N. J. May 10. 1938, No. 13971. [Class 52 (iv)] Foundation slats for upholstery y springs forming the seat and back spring- ing of a seat have a U-shaped wire frame 6 at the bottom of the slats forming the back the ends of the frame being fixed to the framing 14 of the seat back. A wire frame 11 surrounds the seat foundation which is fixed at its front edge while the slats of the back are fixed at their upper ends 2 and the floating ends of the foundations are secured together by tension springs 12.
Patent GB-276741-A (GB)
Title: Improvements in or relating to adjustment devices particularly suitable for use with variable condensers, variometers and the like instruments
IPC: H03J1/14
Filed: 1926-06-02
Abstract: 276,741. Davis, W. J. June 2, 1926. Wireless tuning- apparatus, adjustment and indicating devices for. - A coarse and fine adjustment mechanism comprises epicyclic friction or toothed gearing having the intermediate wheels carried in a rotatable cage rigidly fixed to the operating- spindle, one of the gears being prevented from rotating during the fine adjustment, the arrangement being such that during the coarse adjustment there is no relative rotation between the gear wheels which rotate as a whole. In one construction, Fig. 1 (Provisional Specification), the intermediate wheels H, J are carried between plates D, E rigidly secured to the spindle A by a grub screw G. The fine adjustment spindle M is integral with a pinion L which is pressed into contact with the wheels H by springs K, the wheels J being simultaneously pressed into contact with the rim of a dished washer C. The washer C is loosely mounted on the spindle A and has a felt or other liner in its under side which frictionally engages the panel B. In modifications, the springs K engage with the pinion L only, pressure being transmitted through the gear wheels to the panel. The grub screw G is also arranged to project to the exterior of the coarse adjustment knob.
Patent GB-944906-A (GB)
Title: New 6-halo-steroids and process for the preparation thereof
IPC: C07J5/00
Filed: 1960-04-21
Abstract: The invention comprises compounds of the general formula: <FORM:0944906/C2/1> (X1 is chlorine or fluorine, X2 is bromine, chlorine or fluorine, Y is H (b -OH) or O, and R is hydrogen or an acyl group) and the corresponding 1:2-saturated derivatives in which R is hydrogen, together with a process for the preparation of the 1-dehydro compounds by subjecting the corresponding 1, 2-saturated steroid having in position 17 a hydroxyl or acyloxy group to dehydrogenation in known manner, e.g. with selenium dioxide or Corynebacterium simplex, after which the resulting D  1, 4, 6-steroid may be hydrolysed or acylated at C17.  Specified acyl groups R include acetate, propionate, t-butyrate, trimethylacetate, hemi-succinate, enanthate, caproate, benzoate, phenoxyacetate, phenylpropionate, p-hydroxyphenylpropionate, cyclopentylpropionate and b -chloropropionate.  Four detailed examples are given.
Patent GB-1516080-A (GB)
Title: High voltage isolating switch shutter assembly
IPC: H02B11/24
Filed: 1977-04-04
Abstract: 1516080 Switchgear isolation WESTING- HOUSE ELECTRIC CORP 4 April 1977 [2 April 1976] 14084/77 Heading H1N Switching apparatus of the type having a cabinet 13 with fixed bus-bar terminals 21, 23 movable terminal-masking shutters 47 and withdrawable switching units 15, 17, includes a withdrawable isolating switch unit 17 with contacts 33 that are movable to engage fixed terminals 23 the contact moving mechanism being engageable with the shutter moving mechanism of the cabinet to move the shutter 47 to expose or mask fixed terminals 23.
Patent GB-135881-A (GB)
Title: Improvements in Floors and Roofs.
Inventor: BRETON EMILY LOUISA JANE LE
IPC: E04F15/024
Filed: 1918-08-30
Abstract: 135,881. Le Breton, E. L. J., and Surridge, L. T. Aug. 30, 1918. Wood floors other than wood-block; joist floors; metal floors; roofing; walls and partitions.-Flooring, roofing, staging, and partitioning consists of panels or sections formed of boards, wood substitutes, metal, concrete, &c. and detachably secured to joists by clamping-plates C, Figs. 2 and 11, which, overlap the corners of four adjacent panels and lie flush with the upper face. The clamp bolts E are either held rigidly to the joists or are slidable in slotted plates M to allow for expansion. The abutting ends of panels may be grooved and connected by a metal tongue, or they may be shaped to engage a dovetailed wooden fillet G, Fig. 5, or a metal guide H, Fig. 6. The ledgers B on the back of the panels may be bevelled to engage either cleats K, Fig. 8, on the boards, or undercut therein; or T-shaped metal bars, Fig. 10, or round rods or cables may be engaged by cleats or clips. The panels may be pressed together by spring frames such as are described in Specification 141,086.
Patent GB-276934-A (GB)
Title: Improved method of mining coal
IPC: E21C25/68
Filed: 1926-11-25
Abstract: 276,934. Tugwood, R. J., (Jeffrey Manufacturing Co.). Nov. 25, 1926. Endless-chain machines.-A method of mining coal, which may conveniently be carried out by the machine described in Specification 273,157, consists in cutting a kerf along a coal face by means of a coal-cutting machine comprising a main frame 1 adapted to travel longitudinally of the coal face and a plurality of kerf cutters, for example the chain cutters 40, 48, 51. The undercut material is then broken down, and the machine is traversed in the reverse direction, the drive of the kerf cutters being reversed by suitable gear in the machine so that they operate progressively to shift the material laterally of the coal face. The broken coal falls clear of the machine on to a long-wall conveyer comprising a frame 68, a floor plate 69, and conveying arms. 70 which, on their return path, are moved to an upright position as shown in the Figure.
Patent GB-475273-A (GB)
Title: Improvements in and relating to wrapping or packing carpets, linoleum and like coiled articles
IPC: B65B5/04
Filed: 1936-05-20
Abstract: 475,273. Packaging - apparatus. ROBINSON, F. G., and PAPER SACKS, Ltd. May 20, 1936, No. 14307. [Class 94 (i)] A device for facilitating the packing of rugs, carpets, linoleum, and like coilable materials comprises a table M with an upstanding edge N against which the carpet &c. C is tightly rolled so as to be in alignment with a tapered funnel A. The funnel is mounted on a slipway E, the inclination of which may be adjusted by means of hinged legs O. A length of paper tube, preferably formed with gussets, is drawn from a roll G beneath a guide roll F, and fastened to the funnel A by clamping means D, the appropriate length B being severed by a guillotine K. The roll of carpet is forced through the funnel into the paper tube and the projecting ends are tied or folded and secured by adhesive. The slipway may be graduated at H. One or both ends of the funnel may be expansible. The ends may comprise a number of segments movable radially by cam action.
Patent GB-313152-A (GB)
IPC: B60Q1/36
Filed: 1929-05-08
Abstract: 313,152. Spezial - Werkzeugfabrik Feuerbach Ges. June 8, 1928, [Convention date]. Road - traffic signals on vehicles.-An electromagnetically-operated signal arm has a mechanical locking device for the inoperative position of the arm comprising a link normal to the line of movement of the magnet plunger. A casing 1 has an electro-magnet 2 detachably mounted therein. The signalling arm 3 is formed as a crank member and is pivotally mounted for rotation about an axis 5. The plunger 9 of the electromagnet is forced up to a stop 10 by a link 7 pivoted at one end to the arm 3 and at the other end to the plunger 9 and influenced by the spring 8. In the inoperative position of the core of the magnet, the link 7 is horizontal so that the signalling arm 3 cannot move as the component if any force set up by oscillation of the arm 3 is directed horizontally towards the plunger 9 through the link 7.
Patent GB-971657-A (GB)
Title: A swash-plate-type hydraulic pump or motor
IPC: F01B3/10
Filed: 1962-04-13
Abstract: 971,657. Reciprocating motors and pumps. LICENTIA PATENT-VERWALTUNGSG.m.b.H. April 13, 1962 [April 17, 1961], No. 14356/62. Addition to 809,666. Heading F1A. In an hydraulic, axial-piston pump or motor as described in the parent Specification and having a tiltable cylinder carrier 4 connected to a rotating drive flange 1, and cylinders 6 connected through hollow pistons 14 to ports in flange 1, the cylinders 6 are mounted in a common resilient casing 11, e.g. of rubber, under compression between a plate 12 and head members 9 of cylinders 6, to urge members 9 against a bearing ring 10.
Patent GB-307388-A (GB)
Title: Improvements in and relating to reinforced concrete structures
IPC: E04C5/16
Filed: 1927-12-06
Abstract: 307,388. Carson, N. B. Dec. 6, 1927. Divided on 307,380. Reinforced-concrete beams.-Concrete beams of the type reinforced by a rolled or built-up joist and bars spaced therefrom, are provided with preformed stirrups shaped to fit around or to hook into the joist and also to hook over the bars to space them in predetermined position. In Fig. 1, the stirrups 4 are hooked into the web of the joist; ties 19 may be added. In Fig. 3, the stirrups 11 are V-shaped. Figs. 5 and 9 shows stirrups which embrace the joist, the stirrups 28 being shaped as shown in Fig. 10. Fig. 16 shows a stirrup embracing and hooked into the joist. For built-up joists, the stirrups may be shaped as shown at 57, 59, Fig. 22, or as symmetrical pairs 62, Fig. 25.
Patent GB-1043473-A (GB)
Title: Process for the production of cyclohexanone
IPC: C07C45/32
Filed: 1965-04-05
Abstract: Cyclohexanone is produced by contacting a mixture comprising vaporous cyclohexane carboxylic acid and molecular oxygen, with a copper containing catalyst at a temperature between 250 DEG  and 600 DEG  C. The catalyst preferably comprises a mixture of copper and zinc in the form of free metals or their oxides and may also be copper metal, copper chromite, cuprous oxide and cupric oxide.  A small amount of cyclohexene and cyclohexanol is formed as a by-product. The gaseous mixture preferably contains 1 to 3 parts by weight of air per part by weight of cyclohexane carboxylic acid vapour and preferably, also, up to 5 parts by weight of steam per part by weight of air.  The flow rate of the said gaseous mixture over the catalyst ordinarily varies from 0.2 to 10.0 parts by weight of cyclohexane carboxylic acid per hour per part by weight of catalyst.  The process is conveniently carried out in a converter containing the heated catalyst and a preheating section consisting of an inert material such as alumina. The unreacted cyclohexane carboxylic acid may be separated by steam distillation and recycled.
Patent GB-978172-A (GB)
Title: Improvements in or relating to the preparation of diesters of phthalic acids
IPC: C07C51/265
Filed: 1962-04-13
Abstract: In a process for producing dimethyl terephthalate and/or dimethyl isophthalate by oxidising p-and/or m-xylene, esterifying the resultant product with methanol and separating the major proportion of the principal ester formed, the residual mixture free from xylenes and toluates but containing oxidation by-products together with dimethyl terephthalate and/or dimethyl isophthalate, is oxidised with oxygen or an oxygen-containing gas in the presence of an oxidation catalyst at a temperature of 130 DEG  to 200 DEG C. to convert at least part of the oxidation by-products to terephthalic and/or isophthalic acid, and the acid or acids so formed is or are esterified with methanol to yield further dimethyl terephthalate and/or dimethyl isophthalate. The oxidation of the residual mixture may be carried out using a salt of manganese, cobalt, cerium or thallium as catalyst, and at atmospheric pressure or, preferably, at a pressure of up to 20 atmospheres.  The dimethyl terephthalate and/or dimethyl isophthalate may be separated from the mixture containing them by fractional crystallisation in a hot organic solvent, e.g. an aliphatic aromatic, or hydrogenated aromatic hydrocarbon. Specification 809,730 is referred to.
Patent GB-528779-A (GB)
Title: Improvements in or relating to the welding of flanged metal members
IPC: B23K9/00
Filed: 1939-05-15
Abstract: 528,779. Uniting by fusion. BRITISH OXYGEN CO., Ltd. (African Oxygen & Acetylene (Pty.), Ltd.). May 15, 1939, No. 14436. [Class 83 (iv)] In a method of welding the abutting ends of two metal members, each of which comprises a web merging into a flange, such as fox making rail joints in situ, a portion of the web of at least one of the members is removed so as to form a recess exposing the abutting flange ends across the full width thereof, the abutting flanges are then welded and thereafter an element conforming to the recess is fitted therein and a peripheral weld is effected round the recess. Semicircular recesses 16 are made in each of the abutting webs 12, 13 of a pair of rails, the abutting edges of the flanges 14, 15 are formed with a V-notch 17, and welding effected by first filling the notch with weld metal and then welding, peripherally round a circular element inserted in the aperture formed by the recesses. Stiffening plates 19, 20 are then butt-welded to the edges of the flanges on either side of the joint. The rail crowns 10, 11 may be welded, if desired, All welds may be effected from above and may be carried out by oxy-acetylene, atomic hydrogen or metallic or carbon arc.
Patent GB-139383-A (GB)
Title: Improvements in cooling chambers for chocolate and other materials
IPC: A23G7/02
Filed: 1919-06-06
Abstract: 139,383. Marks, E. C. R., (Fours et ProcÚdÚs Mathy). June 6, 1919. Cooling-chambers.-In apparatus in which the goods to be cooled, for example chocolate in moulds, are conveyed through the chamber by an endless conveyer belt, the cooling-air first passes over the upper stretch of the belt 1, as shown by the arrows a, in the same direction as the goods, and then passes over the edges of the belt at the delivery end and through the space between the stretches, as shown by the arrows c, or below the lower stretch, or through both these spaces, to an outlet 9. After leaving the chamber, the air passes through a drier 19, Fig. 5, and is forced by a fan 20 through a cooler 18, from which it returns to the chamber through a wide funnel 5. The side walls of the chamber are air-insulated, the insulation being omitted at the delivery end to provide passages 7, 7<1>, for the air at the sides of the belt. The belt is supported upon side bars 14, Fig. 4, and a central bar 16, and substantially forms a separating partition between the upper and lower spaces, but it may be formed of spaced slats to allow the air to pass through it and around the moulds or other goods.
Patent GB-1518268-A (GB)
Title: Buoyant water wheel
IPC: F03B17/06
Filed: 1977-04-14
Abstract: 1518268 Water turbines A DIXON 14 April 1977 14480/77 Heading F1T An electric generator is driven by a buoyant water wheel. In one arrangement the latter has a hollow gas filled plastics hub 1 with radial paddles 2 and is mounted on hinged arm 8 to drive the generator via toothed belt 4. In another arrangement the buoyancy is provided by an inflatable rubber tube passing through holes in the paddles. Several wheels may be mounted on a common support structure such as a breakwater or river bridge.
Patent GB-438060-A (GB)
Title: Improvement in or connected with cloth toy animals, dolls, puppets and the like
IPC: A63H3/02
Filed: 1934-05-14
Abstract: 438,060. Dolls. RENDLE, C. J., Oswald House, Coalbrookdale, Shropshire. May 14, 1934, No. 14517. [Class 132 (iii)] A toy animal, doll, puppet or the like is constructed from textile materials waterproofed on the wrong side by coating or treating with rubber and/or cellulose or acetate dopes, paints or solutions, and has the holes formed by the needles in stitching filled or covered with liquid rubber solution or dopes whereby the interior of the toy is impervious to water.
Patent GB-419537-A (GB)
Title: Improvements relating to feeding means for film forming drums or cylinders
IPC: B01D1/22
Filed: 1933-05-19
Abstract: <PICT:0419537/III/1> Liquids are fed onto a rotating drum a, heated or cooled, so that a solid film is formed on the drum by supplying the liquid to a container c in which a toothed wheel e is rotated so as to spray the liquid through an adjustable aperture b onto the drum.  A movable plate g permits adjustment of the amount of liquid supplied to the drum.  A scraper removes the solidified material.
Patent GB-1422335-A (GB)
IPC: A01D34/73
Filed: 1972-03-29
Abstract: 1422335 Rotary mowers MASSEY-FERGUSON-PERKINS LTD 27 March 1973 [29 March 1972] 14614/72 Heading A1F A crop cutter rotor unit suitable for a mower of the kind described in Specification 1376719 has a domed annular cutter carrier 14 with three equally spaced cutter blades 16 secured around the outer periphery on pivot pins 30 mounted between arm members 28 and wear members 32. The blades 16, which may be the shape shown in Fig. 2 or circular or star shaped, Fig. 4 (not shown), are formed with an aperture whereby they are located on the pivot pin 30. In the modified versions the aperture is round, square or formed with a number of lobes so as to provide a plurality of pivot points. If a blade strikes an obstruction, it can move radially inwardly or it can pivot clockwise about pin 30 to an inoperative position in which it does not overlap the edge 46. This action also turns the blade and ensures all the cutting edges are used equally and at the same time results in an automatic self-cleaning action.
Patent GB-443324-A (GB)
Title: Improvements in or relating to the production of vinyl derivatives
IPC: C08F8/28
Filed: 1935-05-20
Abstract: Condensation products soluble in appropriate solvents to give a solution of relatively high viscosity are manufactured by condensing a polyvinyl alcohol with formaldehyde or a polymer thereof in the presence of an acid or acid reacting catalyst, the amount of catalyst being chosen by determining experimentally the maximum quantity which gives a product insoluble in the solvent selected and then using an amount slightly in excess of this quantity.  The excess should in general not exceed 10 per cent of the experimentally determined quantity when working at room temperature, and should usually not exceed 1 per cent of the total reaction mass when using hydrochloric acid.  In examples: (1) a polyvinyl alcohol having a viscosity of 38 seconds Engler as a 4 per cent aqueous solution at 15 DEG  C., is condensed with trioxymethylene in aqueous solution at 20 DEG  C. in the presence of 7 per cent (on the total mass) of hydrochloric acid, to yield a product soluble in a mixture of methylene chloride and alcohol (6,7 per cent of acid being the maximum quantity giving an insoluble product); (2) a polyvinyl alcohol of 68 seconds Engler viscosity is used and the condensation is effected in the presence of 25 per cent of sulphuric acid (23,5 per cent being the maximum quantity giving an insoluble product).  Specifications 337,806, [Class 2 (iii)], and 351,082* are referred to.
Patent GB-1365413-A (GB)
Title: Reactor suitable for preparing metal powders
IPC: B22F9/24
Filed: 1972-03-29
Abstract: 1365413 Liquid/liquid contact; mixing apparatus PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 29 March 1972 [1 April 1971] 14813/72 Headings B1C and BIF [Also in Division C7] A reactor for the production of metal powder by reduction with NaBH 4  comprises a vessel 3 having a cover 5, a cooling jacket 17, a stirring device 7 and an overflow 23. Separate inlets (11, 13-Fig. 1 not shown) supply the reactants, e.g. FeSO 4  solution and NaBH 4  solution, to the vessel 3, the metal powder formed being carried away via the overflow 23. The removal is aided by the stirrer 33 and a water nozzle 25. The liberated H 2  and diborane escape through the outlet 27.