baber/WOPTO huggingface dataset:
Patent GB-1451609-A (GB)
Title: Process for reducing calcium sulphate scale formation
IPC: C01B25/226
Filed: 1972-11-08
Abstract: 1451609 Calcium sulphate from wet process phosphoric acid FISONS Ltd 16 Oct 1973 [8 Nov 1972] 06281/76 Divided out of 1451608 Heading C1A In a process similar to that of the parent: in which phosphoric acid and calcium sulphate slurry obtained in the wet process for phosphoric acid production are filtered and scale formation reduced by the addition of anti-scaling additives after the slurry has been filtered; scale formation is reduced further by the addition of an antiscaling additive which is a condensed phosphate of M 2 O : P 2 O 5  molar ratio of from 1À1 : 1 to 1À2 : 1, M being hydrogen or an alkali metal, this addition of condensed phosphate is made at any point in the production of phosphoric acid by the wet process.
Patent GB-895743-A (GB)
Title: Improvements in or relating to computer circuits
Inventor: HAYWARD RODNEY KENNETH
IPC: G07C15/00
Filed: 1957-02-25
Abstract: 895,743. Electric calculating apparatus. POSTMASTER GENERAL. May 23, 1958 [Feb. 25, 1957], No. 6283/57. Class 106 (1). Fig. 1 shows an arrangement for subtracting one number between 1 and 10 entered on to the corresponding magnetic core Y(1-10) by line LY(1-10) and winding D from another entered on a core X(1-10) by line LX(1-10); after entry the subtrahend is counted up by application of pulses to inputs α1, α2 in turn (cores Y being arranged as a transistor-coupled ring counter) the " setting " current of each core Y passing through the " resetting " winding D of an X core so that the number of pulses necessary to erase the entered minuend represents the required difference. By applying pulses α1 and α2 successively to 10 " and " gates (not shown), and applying the output on L11 to all these gates, the difference appears as an output on a corresponding gate; a pulse on line RL1 then ensures that all Y cores are reset at the end of the operation. Fig. 4 shows a modification including two ring counters; Z1-Z10 for pulses alternately on lines α3, α4 counting the minuend and Y1-Y10 for pulses on α1, α2 counting the subtrahend. Cores X are in the same state as cores Z between a minuend input pulse and the next subtrahend input pulse, and when the difference is required the inputs are stopped, one more " minuend " pulse applied, and " subtrahend " pulses then applied to count up to the minuend as in Fig. 1. Specification 841,287 is referred to.
Patent GB-1164785-A (GB)
Title: Continuous Method of Making Abrasive Finishing Materials
IPC: B24B31/14
Filed: 1968-02-08
Abstract: 1,164,785. Finishing chips. ROTO-FINISH CO. 8 Feb., 1968 [19 Sept., 1967], No. 6288/68. Heading C4V. A method of making resin-bonded abrasive finishing chips comprises the steps of providing a mixture of particulate abrasive material and a curable resin, the resin being in a liquid, and cured state, depositing the mixture on to a moving web, partially curing the resin in the mixture on the moving web to form a rod of gelatinous material, separating the gelatinous rod from the web, cutting the rod into segments, and completing the curing of the segments to produce the finishing chips. Preferably the web is initially flat and is formed into an upwardly facing channel shape and a mixture deposited into the channel. The profile of the channel, which may be opened or closed to the top, may be rectangular, half-oval, half-circular, half-octagonal, circular or oval according to the shape of chip required. Abrasives which may be used are particulate solids such as aluminium oxide, silicon carbide, amorphous silicas, crystalline silicas, bauxite, bentonite, rouge, pumice, flint, volcanic ash, granite, lime stone, emery, garnet, zirconium oxides and crushed rock. The resin may be any suitable resin which can be cured, or set or polymerized by contact with air, catalytic action, heat, radio-frequency energy or otherwise. Suitable resins include polyesters, epoxies, alkyds, allyls, aminos, phenolics and urethanes. Suitable catalysts include benzoyl peroxides, methyl ethyl ketone peroxide, acids, other organic peroxides. The particle size of the abrasive material may be less than 60 mesh screen size.
Patent GB-1399651-A (GB)
Title: Pyrazoloquinazolone compounds
IPC: G03C7/384
Filed: 1972-02-10
Abstract: 1399651 An azo dyestuff from a pyrazolo- [2,3-b]quinazolone AGFA-GEVAERT 30 Jan 1973 [10 Feb 1972] 6291/72 Heading C4P [Also in Divisions C2 and G2] The azo dyestuff of formula is obtained by reacting diazotized p-anisidine (NaNO 2 /HCl) with the novel compound of formula dissolved in sodium hydroxide solution.
Patent GB-418792-A (GB)
Title: Improvements in or relating to linear dimension gauges
Filed: 1934-02-27
Abstract: 418,792. Linear - dimension gauges. MAHR GES., C., Esslingen-on-Nahe, Germany. Feb. 27, 1934, No. 6323. Convention date, March 6, 1933. [Classes 106 (ii) and 106 (iv).] In a gauge of the dial type one end of a pivotally mounted bell-crank lever bears on the feeler while the other end coacts with a rack engaging a pinion operating a pointer either directly or through a suitable transmission. The plunger I engages the short arm of a bell-crark lever 5, 9 through the medium of a ball or knife edge carried by the arm. The long arm 9 engages through the medium of an eccentrically mounted ball 11 at the end a lug 14 on a crosshead 15 sliding on a guide 16 mounted in the casing. The crosshead is formed as a rack 21 to engage a pinion 17 on the pointer spindle 18. The spherical surfaces or knife edges 10, 11 may be formed on the plunger and crosshead respectively, the arms having flat surfaces. By adjusting the ball 11 on its eccentric mounting the transmission ratio may be altered. In a modification, the rack is formed on the upper side of the cross head and engages the smaller of two wheels on the same axis the larger engaging the pointer pinion thus giving an amplified reading.
Patent GB-476326-A (GB)
Title: An improved process for the production of top or bottom closures for tubular paper bodies
IPC: B65D59/04
Filed: 1936-03-03
Abstract: 476,326. Cycle - handles. WALDVOGEL, I. March 3, 1936, No. 6406. Void. Convention date, March 11, 1935. Drawings to Specification. [Class 136 (iii)] [Also in Groups XXXI, XVII, and XXIII] The method of making spectacle cases described in Specification 404,485, [Group XVII], wherein one edge of a paper strip is shaved or scraped to wedge-section adapted to form an end-closure by folding when the strip has been wound into tubular form on a mandrel, is utilized to produce other tubular bodies closed at one or both ends such as steering- handles for cycles.
Patent GB-485699-A (GB)
Title: Improvements in curtain supporting devices
IPC: A47H15/02
Filed: 1937-03-04
Abstract: 485,699. Suspending curtains. SMITH, H. F. March 4, 1937, No. 6411. [Class 52 (v)] A curtain - supporting runner comprises a roller hollowed out at one side face, a pivot pin 12 projecting into the hollow, and a hanger 6 having its end portion projecting into the hollow to engage the pivot substantially above the rail 8 on which the roller runs. The roller may be formed by cutting out a block of metal or by pressing out a metal sheet. Each arm of the hanger may be provided with a similar roller if desired.
Patent GB-1528532-A (GB)
Title: Preparation of a zeolite catalyst
IPC: C10G11/04
Filed: 1976-02-18
Abstract: 1528532 Zeolite hydrocarbon cracking catalyst W R GRACE & CO 18 Feb 1976 [19 Feb 1975] .06419/76 Heading B1E [Also in Division Cl] A zeolite catalyst for cracking a hydrocarbon feedstock to obtain lower boiling olefines of increased olefinic content is prepared by (a) ion-exchanging a type-Y zeolite having alkali-metal was with an acidified aqueous solution of at least one ammonium and/or amine salt and having a pH 3.0 to 3.5 to reduce the alkali-metal ion content to below 4 wt.% (calculated as alkali-metal oxide), (b) calcining at 1000-1500‹F for 0.1 to 12 hours, (c) cooling the zeolite and baseexchanging it with at least one ammonium and/or amine salt to reduce the alkali-metal ion content to below 1 wt. %, (d) calcining at 1000-1500‹F for 0.1 to 12 hours to convert at least some of the ammonium or amine cations to hydrogen ions and (e) cooling and recovering the exchanged zeolite. The zeolite may be mixed with a calcined, rare-earth exchanged type - Y zeolite. The catalyst may be mixed with an amorphous inorganic matrix (e.g. silica optionally in admixture with a metal oxide such as alumina, or a mixture of clay and silica-alumina).
Patent GB-175542-A (GB)
Title: Improvements in or relating to coal or rock drilling and channelling machines
IPC: E21B3/02
Filed: 1921-02-25
Abstract: 175,542. Rayner, G. H. T., and Rayner, P. Feb. 25, 1921. Drills.-A hand or power driven drill for operating on rock or coal is attached to a support p which can turn on ball bearings round a central fixed support a. A toothed ring or segment f, which may be renewable, is bolted to the support a, and a worm 7, mounted in a box u, is carried by the support p and gears with the ring f. To adjust the worm horizontally and vertically, lateral play is provided, as shown at w and 4, round the bolts which hold the box to the support p. A handle (not shown) is attached to the worm shaft.
Patent GB-595334-A (GB)
Title: A portable power take-off device for use with a motor-vehicle
IPC: B60K25/08
Filed: 1946-03-15
Abstract: 595,334. Power take-off devices. STINSON, G. F. March 15, 1946, No. 6473/45. [Classes 79 (ii) and 79 (iii)] In a portable power take-off device of the kind comprising a U-shaped frame, in the flanges of which are journalled the spindles of a pair of rollers which can support a driving road wheel of a motor vehicle and of which at least one is adapted to drive an auxiliary, at least one of the flanges adjacent the end of a roller spindle additionally supports a mounting for alternative auxiliaries, the said spindle having, at the appropriate end, a member for drivingly engaging a coacting member on a driven shaft of the selected auxiliary. As shown, the power take-off device comprises a channel section-member 11 with walls 15, the web of the channel resting on the ground. Concave rollers 14 secured to spindles 13 are journalled in bearing blocks 12 and are adapted to be driven by the rear wheel of an automobile. The spindle 13 is drivingly connected to the shaft 26 of one of a number of detachable auxiliaries 20 by a diametrical slot and rib. The auxiliaries are mounted on brackets 22 carried by one of the flanges 15 of the frame. Another auxiliary 19 may be mounted similarly on the opposite side of the frame. The other roller has a pulley 17 secured to its spindle.
Patent GB-826957-A (GB)
Title: Improvements in or relating to structural frame members of cementitious material
IPC: B28B3/02
Filed: 1956-03-01
Abstract: 826,957. Moulding concrete window frames &c. BETONWERK WESER G.m.b.H. March 1, 1956 [Sept. 5, 1955], No. 6485/56. Class 87(2). A method of moulding a concrete thin-walled frame, e.g., a window frame, comprises introducing concrete 14 into the cavity 5 of a mould 1, vibrating the mould 1 whilst introducing a ram 12 into the cavity to exert pressure on the concrete, removing the formed frame from the mould 1 by means of an ejector 9 and subjecting the frame to a hardening process. A concrete composition is given and the hardening process may be the placing of the frame in a humidity chamber with or without the exposure to heat by steam.
Patent GB-398419-A (GB)
Title: Improvements in and relating to directional street refractors
IPC: F21V5/00
Filed: 1933-03-03
Abstract: 398,419. Street lamps. HOLOPHANE, Ltd. and ENGLISH, S., Holophane House, Elverton Street, Vincent Square, London. March 3, 1933, No. 6521. Addition to 337,398, [Class 75 (ii), Lamp chimneys &c.] [Class 75 (ii).] Globes.-A dome refractor, for directional street lighting, consists of two glass envelopes with smooth exposed surfaces, the inner envelope having a smooth interior surface and a series of horizontal prismatic rings 1, 4 on its outer'surface, and the outer envelope having a smooth exterior surface and on its interior surface a number of vertical prisms 2 grouped about clear zones and a band of horizontal prismatic rings 1 above the vertical prisms, the arrangement producing the same light distribution as in the parent Specification. The horizontal prisms 1 on the inner and outer refractors combine to produce symmetrical illumination depressed at an angle of 20-40‹ below the horizontal, and the prisms 4 on the lower part of the inner refractor combine with the vertical prisms 2 on the outer refractor to depress the light to an angle of 10-20‹ below the horizontal, and to increase its strength in certain horizontal directions. The outer glass member rests on a flange 5 on the inner member, a washer 5 being interposed. A washer may also be secured over the neck parts of the two members. Specification 217,539, [Class 75 (ii), Lamp chimneys &c.], is referred to.
Patent GB-1127773-A (GB)
Title: Improvements in or relating to the forming of materials by extrusion
Inventor: GREEN DEREK
IPC: B21C23/00
Filed: 1965-02-15
Abstract: 1,127,773. Extruding. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 4 Feb., 1966 [15 Feb., 1965], No. 6532/65. Heading B3P. A tubular article is formed by hydrostatic extrusion of a tubular billet 8 using a mandrel 10 supported within the billet and which passes therewith through the extrusion die 2. The latter is supported within a pressure container 1 by copper and rubber sealing rings 4, 5. Container 1 is filled with liquid 13 and is pressurized by a plunger 3 fitted with copper and rubber sealing rings 6, 7. Mandrel 9 has a head 11 sealing against the rear end 12 of the billet. In another embodiment, Fig. 2 (not shown) the rear end of the mandrel has a conical head (14) which may pass completely through the die orifice to enable the whole of the billet to be extruded. In other embodiments, Figs. 3, 4 (not shown), the billet is closed at either its rear or leading end and a plain cylindrical mandrel is used. After extrusion, the mandrel is removed from the extruded tube by slitting it open.
Patent GB-1442292-A (GB)
Title: Fastening device
IPC: F16B31/02
Filed: 1975-02-17
Abstract: 1442292 Applying predetermined tensions to fasteners A FISCHER 17 Feb 1975 [19 Feb 1974] 6534/75 Heading F2H [Also in Division G1] An element 9 to indicate the tension in a fastener 1 comprises a washer placed under the head 7 of the fastener and made of a material which changes colour in dependence on the compressive stress to which it is subjected. The washer is made of P.V.C. including a plasticizer, the colour change being due to a change in the structure of the plasticizer under compression. The colour change is a brightening of the original colour of the plastics, the amount of brightening indicating the loading, the limit being when the material is completely white. As shown, the fastener 1 comprises a longitudinally split expansible sleeve 2 on a bolt 4 having an expander head 3, the bolt being screwed into a threaded bore 6 of a rod 5. The head 7 may be integral with the rod 5, or may be a nut screw-threaded on to the rod. The washer 9 is arranged to reach its white colour at a load corresponding to the greatest force which can be applied safely to masonry 11 in which the fastener is anchored.
Patent GB-112716-A (GB)
Title: Improvements in Dobbies for use in connection with Looms for Weaving.
Inventor: HILL EDWARD
IPC: D03C1/06
Filed: 1917-05-09
Abstract: 112,716. Hill, E. May 9, 1917. Shedding-levers.-In dobbies in which the jacklevers b, Fig. 1, engage and operate levers c fulcrumed centrally in the loom, the ends b<1> of the jack-levers are slotted at b<2>, Fig. 4, to engage centrally the reduced upper edges c<1>, Fig. 6, of the levers c, and the levers b have quadrant guiding-surfaces b<3> as near as possible to the points of contact of the levers b, c. The upper surface of the end b<1> and the co-operating surface of the part c<2> of the lever c are kept as broad as possible to withstand wear. The surfaces b<3> of adjoining lavers co-operate, grids or grates being dispensed with, and the outer levers are guided by plates d supported by the cross-shaft 3 and the stay-bolts 5 within the frame B. These plates extend from the surfaces b<3> to the shaft 3 and to the upper ends of the levers b at 4, and are adjusted in position by screws passing through the frame B at f, g, h.
Patent GB-793891-A (GB)
Title: Quartz crystal
IPC: C30B7/00
Filed: 1956-03-02
Abstract: Single crystals of alpha quartz containing from 0.05 to 1 per cent by weight of germanium dioxide, are grown on quartz seed crystals in a autoclave containing small pieces of quartz supply material, an aqueous solution of sodium hydroxide, and germanium dioxide.  The autoclave is heated so that a temperature of 345 DEG  to 350 DEG  C. is maintained in the neighbourhood of the seeds, and a temperature 35 DEG  to 40 DEG  C. higher in the neighbourhood of the supply material.  The pressure is 5000 to 6000 p.s.i. and the crystals are grown for 2 1/2 months.  Piezoelectric resonator plates are cut from the crystals in such a manner that the normals to the major surfaces of the plates lie in crystallographic YZ planes of the crystalline material and make angles of 34 DEG  to 36 DEG  301 with the Y axes. Specifications 761,531 and 761,643 are referred to.
Patent GB-436078-A (GB)
Title: Improvements in or relating to electric incandescent lamps
IPC: B64D37/06
Filed: 1934-03-01
Abstract: 436,078. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. March 1, 1934, No. 6610. Convention date, March 3, 1933. Drawings to Specification. [Class 39 (i)] [See also Group XI] The Specification as open to inspection under Sect. 91 describes the arrangement and interconnection of internal parts such as pole wires, incandescent bodies, screens, &c. of rectifying tubes and glow discharge tubes, in such a manner that the natural frequency of vibration of the interconnected parts has a value sufficiently high to prevent the vibrations of the surroundings in which the device is used from exerting any unfavourable effect. This subjectmatter does not appear in the Specification as accepted.
Patent GB-678511-A (GB)
Title: Improvements in and relating to electric resistances
IPC: H01C10/32
Filed: 1949-03-11
Abstract: 678,511. Cooling resistances; variablecontact resistances. BRITISH ELECTRIC RESISTANCE CO., Ltd., and NEWNHAM, L. A. June 12, 1950 [March 11, 1949], No. 6676/49. Class 37. A resistance element is mounted in a metalwalled housing which is adapted to be sealed and a very thin packing of electrically insulating material is arranged between the element and the wall of the housing and in close contact therewith so that heat generated in the element passes freely to the wall of the housing, by which it is dissipated. The housing 12 has a cylindrical wall 13 which is inclined outwards at 14 and terminates in an annular collar 15. The bottom 16 is formed with an annular recess 17 having a central aperture. Within the housing 12 is a moulding 18 of insulating plastic or ceramic material which has a recess 21 in its outer surface extending round the major part of the periphery. A spindle 22 rotatable within a sleeve 23 has an insulating member 24 moulded on to its upper end. The sleeve 23 is formed with an annular projection 26 fitting into the recess 17 and is threaded at each end to take locking-nuts 27, 28. A spring washer 29 is fitted between the member 24 and the end of the sleeve 23. In contact with the internal surface of the cylindrical wall 13 are mica strips 33, between which and the moulding 18 is wedged an arcuate strip 34 of resistance material, its lower portion being housed in the recess 21. The member 24 has secured to it by screws 32 a sliding contact 30 and a spring contact 31 made from a single piece of resilient phosphor bronze. A cap 41 is fitted over the housing 12 and spun down against the inclined portion 14, a rubber gasket 40 forming a hermetic seal. The cap carries three terminals, each of which comprises a screwed metal stud 44 passing through a rubber insulator 45, a conical insulator 46, and a ceramic disc 47. Each stud is held in position by a nut 48 under which is a terminal tag 49. The spring contact 31 engages the centre stud 44, the other studs being connected to the ends of the resistor by leads 36. The outer surface of the housing may have a matt surface, corrugations, or fins for dissipating heat.
Patent GB-1357752-A (GB)
Title: Communication system
IPC: B61L3/22
Filed: 1971-03-12
Abstract: 1357752 Track apparatus BRITISH RAILWAYS BOARD 8 March 1972 [12 March 1971] 6692/71 Heading B7N [Also in Division H4] A system for communicating with a vehicle such as a railway train comprises a pair of spaced, parallel, elongate sensing elements carried by the vehicle and a pair of spaced, parallel, elongate conductive means arranged along the path of the vehicle so that they lie substantially parallel to said sensing elements and fed with a signal from a transmitter, the strength of the electric field detected by the sensing elements being dependent upon the differential capacitance between the sensing elements and the conductive means.
Patent GB-1515981-A (GB)
Title: Looped cable control device
IPC: E21F17/06
Filed: 1976-02-20
Abstract: 1515981 Taking up slack in cables PERARD ENG Ltd 15 Feb 1977 [20 Feb 1976] 06707/76 Heading B8B A control device for a looped supply cable of a mining machine reciprocable along a face conveyer 11, comprises a body pivotally mounted at 27 on a spill plate 14 to form a cable trough 34 therewith, the body being pivotally biased by resilient blocks 26, away from the spill plate and into abutment with stops 35 integral with the spill plate. The body includes a plurality of cranked arms 30, 32 secured at intervals to a wall 36 carrying a plurality of spring closed gates 40 at the top of the trough 34.
Patent GB-563451-A (GB)
Title: Improvements relating to the manufacture of compound cooking fats, lard substitutes and the like
IPC: A23D9/02
Filed: 1943-04-29
Abstract: 563,451. Cooking fats. CO-OPERATIVE WHOLESALE SOCIETY, Ltd., and GREEN, J. E. April 29, 1943, No. 6752. [Class 84] Cooking fats, lard substitutes and the like are made from solid fats and liquid oils, the ingredients being brought together progressively and worked mechanically as they are added to each other without melting the solid fats. The high-melting-point fats may be mixed while liquid as received from the refinery and allowed to cool to the setting temperature before adding the liquid ingredients. The solid fats may be softened by heat, but not melted. In one example, solid hardened whale oil (35 per cent) is worked mechanically until plastic ; beef fat (15 per cent) is added gradually and worked to produce an intimate mixture. Peanut oil (50 per cent) is then introduced slowly as mixing continues. After homogenising, if necessary, the mixture is packed into containers. Colouring matter or other improvers may be embodied. In another instance, hardened whale oil (20 per cent) and coconut oil (10 per cent) are mixed, while liquid as delivered, and cooled to the setting point. Liquid oil (peanut oil, cotton oil, sesame oil), (70 per cent), is added in small amounts with thorough incorporation at each stage. Specification 552,988 is referred to.