baber/WOPTO huggingface dataset:
Patent GB-675224-A (GB)
Title: Improvements in electric cables
Inventor: DAVEY EDWARD LESLIE
IPC: H01B7/02
Filed: 1949-10-13
Abstract: 675,224. Gas-filled cables. GLOVER & CO., Ltd., W. T. Oct. 12, 1950 [Oct. 13, 1949], No. 26332/49. Addition to 625,512. Class 36. A super-tension electric cable is provided with a lapped dielectric consisting of an inner part 3 built up of not less than fourteen alternate single strip layers of orientated polystyrene film and pre-impregnated paper, and an outer part 4 of pre-impregnated paper, the interstices of both parts being filled with gas under super-atmospheric pressure under operating conditions, and the inner part 3 having a wall thickness lying within a range whose lower limit is equal to 10 per cent of the radius of the conductor surface and whose upper limit amounts to 45 per cent of the wall thickness of the whole dielectric. The polystyrene film is about 4 mils. thick and the interleaving paper about 2.5 mils. The cable preferably comprises a conductor 1, a metallized paper screen 2, dielectric 3, 4, a copper tape screen 5, lead sheath 6, metal re-inforcing tapes 7, 8, 9, an outer lead sheath 10 and a protective covering of bitumen-impregnated jute or the like 11. Under operating conditions the cable core within the lead sheath 6 contains nitrogen under a pressure of fourteen atmospheres.
Patent GB-601878-A (GB)
Title: Improvements in or relating to preventing the formation in, or the removal of dust from, air
IPC: C09K3/22
Filed: 1946-10-09
Abstract: The formation in air of dust or its removal therefrom, caused in mining, rock drilling and many industries, is prevented or effected by either subjecting the air containing dust to the action of a finely divided aqueous solution containing a small proportion of each of a nonsoapy anionic surface active substance and of a water-soluble mucilage or like adhesive substance or treating working surfaces capable of giving rise to dust with such a finely divided solution. The dusty atmosphere of mines &c. may be sprayed with the solution; working faces and the tools used may be sprayed therewith, and the solution may be used in wet drilling of rock. The surface active substances comprise water-soluble salts of organic compounds in which a hydrocarbon radical is linked directly with a sulphated or sulphonated solubilizing group or through an ester, amide or aryl linkage. Suitable groups of substances comprise salts of sulphonated or sulphated primary aliphatic alcohols of at least 8 carbon atoms derived from fatty acid sources; salts of sulphonated or sulphated secondary aliphatic alcohols of at least 8 carbon atoms derived from synthetic sources such as petroleum and particularly sulphated compounds obtained from olefines derived from cracked paraffin wax as in Specifications 459,078, 459,079, 459,080, 459,117, [all in Group IV], and 478,841; salts of isethionic acid or of taurine condensation products with fatty acids and salts of alkyl-aryl or keryl-aryl sulphonates. The preferred compounds specified comprise salts of sulphated aliphatic alcohols containing 8 to 22 carbon atoms in the molecule such as those known under the Registered Trade Marks "Teepol" and "Gardinol," and also the materials similarly known as "Nacconal," "Aerosol O.T." and "Igepon T." The mucilages are preferably water-soluble alginates or alginate-containing materials such as mucilages from species of laminaria.  Other water-soluble or dispersable mucilages or gelatinous substances may be used such as alkaline casein, gums such as gum arabic or tragacanth, methyl cellulose, starch, dextrine, saponins and licorice extracts, beet sugar residues, gelatins and fish glues, blood, or sufficiently adhesive waste industrial liquors such as spent sulphite liquor.  The solution may be sprayed in conjunction with a non-inflammable substance where there is danger from inflammable dust.  The solution may contain an anti-corrosive agent, such as sodium silicate, to reduce corrosion of drilling tools etc.; or a mucilage stabilizing agent.
Patent GB-1089523-A (GB)
Title: Improvements in or relating to veterinary compositions for treating mastitis
Inventor: ROYCE ALEC
Filed: 1964-06-25
Abstract: Compositions especially suitable for use in the treatment of mastitis in animals comprise a therapeutic agent in a hydrophobic viscous or gel base and at least 10% by wt. of a solid, physiologically innocuous, non-gelling water-soluble compound of average particle size below 150m .  The therapeutic agent is generally an antibiotic, e.g. a penicillin such as benzyl penicillin or procaine penicillin, or a streptomycin such as streptomycin or dihydrostreptomycin sulphate.  The base may be a mineral oil or vegetable oil.  An aluminium soap, e.g. aluminium monostearate, may be added to the base as a gelling agent and beeswax may be added as a thickening agent. Specified solid non-gelling water-soluble compounds are sodiumchloride, calcium lactate, and sugars, e.g. sucrose, lactose, and dextrose.  A sulphonamide, e.g. sulphadimidine, may also be included within the compositions containing an antibiotic.
Patent GB-410668-A (GB)
Title: Improvements in or relating to radio and like modulated carrier wave transmitters
IPC: H03C3/04
Filed: 1933-09-25
Abstract: 410,668. Valve modulating and amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Hansell, C. W. ; Port Jefferson, Long Island, New York, U.S.A.) Sept. 25, 1933, No. 26400. Convention date, Oct. 31, 1932. [Class 40 (v).] Undesired amplitude modulation in the output of an amplifier in a phase or frequency modulated transmitter, due, for example, to the use of an alternating or fluctuating supply for the operating voltages, is balanced out by rectifying a portion of the output to obtain a wave copy of the undesired modulation and applying this wave to an input electrode of the amplifier in the proper phase and magnitude to .effect compensation. The compensating wave may be applied to the screen grid of the amplifier valve or valves. In the arrangement shown in Fig. 1, the output of phase or frequency modulator 2 is amplified by a cross-neutralized push-pull amplifier 8, 10, to the output of which is coupled a coil 32 in circuit with rectifier 30, a copy of the undesired amplitude modulation being thus taken to a suitable tapping point on resistance 22 in the grid biassing circuit of the amplifier. As shown, anode, grid biassing and filament potentials are supplied by rectified A.C. The grids may be biassed by a battery or the valves may be self biassed. A cascade amplifier is described in which the first stage is biassed by a battery, the compensating voltages being applied at this stage. Specification 383,412 is referred to.
Patent GB-191441-A (GB)
Title: Improvements in means for securing rail chairs to the sleepers of the permanent waysof railways
IPC: E01B9/66
Filed: 1921-10-07
Abstract: 191,441. Dempster, H. G. Oct. 7, 1921. Chairs, securing to sleepers.-Chairs are apertured and recessed to receive eccentric washers to enable adjustment of the gauge, the chair bolt making contact with the chair in all positions. A square or polygonal washer is seated in a recess 8 having a hole 7 provided with four recesses 7a for the different positions of the bolt which passes through a hole 3 in the sleeper 1. In a modification, Fig. 4, the washer 6 is of diamond shape and seats in a recess 11, the hole in the chair being elongated or in the form of a slot. The eccentric washers may be provided at one or both ends of a chair.
Patent GB-1478074-A (GB)
Title: Laser apparatus
IPC: H01S3/00
Filed: 1975-06-23
Abstract: 1478074 Shaping laser beams RAYTHEON CO 23 June 1975 [26 June 1974] 26611/75 Heading G2J In the use of laser beams to work materials e.g. to melt fusible links in a printed or integrated circuit a rectangular beam is obtained by intercepting segments of a circular beam lying exteriorly of two parallel chords and superimposing these segments on the rectangular area by deflecting elements, mirrors or prisms. High power laser beam 24 is guided to the deflecting elements, mirrors 18, 20 and focused on workpiece 14 on a conventional work-table 102. A second eye-safe laser beam 108 is arranged to follow the same optical path and illuminates the same area on the workpiece to enable the operator to set up the work as shown. A T.V. camera 120 may also view the work via a semi-reflecting mirror 122. Prisms 46 and 48 give an elliptical beam in this embodiment rather than a circular C.S.A.
Patent GB-631297-A (GB)
Title: Improvements in or relating to market gardening appliances
IPC: A01G9/12
Filed: 1947-10-03
Abstract: 631,297. Protection of plants. DRAPER, J. H. A. Oct. 3, 1947, No. 26645. [Classes 5(i) and 6(ii)] A protective device for strawberries and like plants comprises strips a of waterproof paper or other similar material having teeth c, the strips being placed in pairs along a row of plants b so that the teeth overlap and the plants are enclosed in the space between the teeth to prevent contact of the fruit with the soil. Bituminised paper may be used and coated with a contact insecticide. In a modification the space between the teeth may be rectangular or hemispherical.
Patent GB-490973-A (GB)
Title: Improvements in or relating to the production of air-free pressed products from dry pulverulent material
IPC: B30B15/00
Filed: 1937-10-01
Abstract: 490,973. Moulding and packing pulverulent material. TOMKINS, A. B. (Offenen Handelsges. W. Busse und J. Perl & Co.) Oct. 1, 1937, No. 26672. [Class 87 (ii)] [Also in Group XVII] In a machine for compressing dry, pulverulent material, such as into powder boxes 12, a plunger 4 or other confining face of the pressure chamber is formed by spaced perforated members comprising wire mesh 5 and a perforated plate 6 serving to reinforce the wire mesh when deflected. The perforated members permit escape of air during pressing and may be situated adjacent the upper and under surfaces of the powder block. There may be more than one pressing plunger. The plunger may comprise a chamber 8 closed at the top with a detachable apertured plate 9. The powder is fed into a guide casing 10 through which the plunger works. The boxes 12 or other containers may be mounted on a rotary table 1. The plunger shaft may be spring-controlled and lever-actuated. The powder box may have a resilient bottom 14 and a lid 15.
Patent GB-386283-A (GB)
Title: Improvements in and relating to liquid-break electric switches
IPC: H01H33/98
Filed: 1932-09-26
Abstract: 386,283. Oil-break switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Paul, W. E.; 2279, Grand Boulevard, Schenectady, New York, U.S.A.) Sept. 26, 1932, No. 26701. Convention date, Sept. 24, 1931. [Class 38 (v).] Fluid actuation; arc-rupturing devices; contacts.-The arc formed when contacts 7, 8 are separated by lowering the bridging-member 1 is utilized to set up a pressure which separates the contacts 5, 6 and blows out the arc set up between them. Contacts 5, 6 are connected in series with contacts 7, 8 and urged into engagement by the springs 32, 33, but carry pistons 29, 30 whereby separation is effected by the arc pressure. When the contact 8 is lowered, the arc drawn creates a pressure in the oil or other fluid in the chamber 13, which acts on a piston 36 on the contact 7 causing the latter to follow up the contact 8 so as to keep the arc of small length and prevent excessive pressure arising. The pressure acts also on a piston 21, but without effect until a cam surface 28 on the bridge-carrier opens a valve 23, so allowing piston 21 to move to the right and open a valve 18. The chamber 13 is now in communication with chamber 20, so that the pressure can act on the pistons 29, 30 to separate the contacts 5, 6 and the arc formed between them is blown out through passage 31. When the pressure subsides, the contacts 5, 6 re-engage but the circuit is opened at 7, 8. Valve 23 is reclosed when the switch is reclosed. When the contacts 7, 8 are in shunt with main contacts, Fig. 2 (not shown), the contact 7 and piston 36 are relatively movable and a compression spring is fitted between them to maintain 7 in engagement with 8 until after the main contacts are separated. The valve 18 may be dispensed with, and the initial break may be caused by the rupturing of a fuse.
Patent GB-299302-A (GB)
Title: A process for removing ammonia and sulphuretted hydrogen from gases
IPC: C10K1/12
Filed: 1928-09-18
Abstract: 299,302. Hansen, C. J., (Assignee of Koppers Akt.-Ges., H.). Oct. 22, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Materials for purifying ; purifier waste, revivefying.-Gases containing ammonia and sulphuretted hydrogen are scrubbed with a solution of iron and oxy-compounds of sulphur, and the liquor is regenerated by adding sulphurous acid in the free or combined form. Fumes from pyrites burners may be supplied to the spent liquor, or ammonium bisulphite may be added. Two scrubbers are used to facilitate continuous working, and free ammonia may be added to gas with a low content thereof. An additional scrubbing with a bisulphite solution may be followed by a further scrubbing with a sulphite or thio-sulphate solution. The scrubbing may be effected at an increased pressure.
Patent GB-498616-A (GB)
Title: A device for disinfecting the mouthpieces of telephones
IPC: H04R1/12
Filed: 1937-10-04
Abstract: 498,616. Sanitary and hygienic devices. KENT, H. L., and ZWEIGENBAUM, J. Oct. 4, 1937, No. 26777. [Class 40 (iv)] In a disinfecting attachment for telephone mouthpieces in which an annular container for disinfectant adapted to fit round the outer rim of the mouthpiece is formed by a base member 1 and an upper member 2 which fit together detachably in such manner that the container is opened solely by the removal of the upper member and in which perforations 8 are formed in the base member I for the outlet of the disinfectant vapours, the base member is provided with securing means adapted to engage the interior of the mouthpiece so as to be wholly concealed therein. As shown in Figs. 2, 4, the base member is provided with prongs 5, 6 corresponding to the greatest and least depth of the mouthpiece, and with lugs 7 to prevent lateral movement of the attachment. The parts 1, 2 are secured together by relative rotation after lugs 3 have been engaged in recesses 4 in the member 1. In a modification, Fig. 6, the base member 1 is provided with a split sleeve 9 with the gap 11 engaged by a wedge 12 which is moved downwardly by a grub-screw 13 mounted in the base member 1. Perforations may be formed in the upper member and/or the base member.
Patent GB-251865-A (GB)
Title: Improvements in book binding machines
IPC: B42C11/04
Filed: 1925-10-26
Abstract: 251,865. Clark, E. W., and Schramm, C. Oct. 26, 1926. Pivoted-blade type.-A bookbinding-machine is provided with cutting-mechanism which severs a length of back-lining paper with head band strips secured along its edges, the material being fed from supply rolls 176, 200, between an adhesiveapplying roller 180 and pressing roller 179, and through friction rollers passing over a guide bracket 207 on to a pivoted bed 218 which is normally horizontal. The bracket 207 carries a fixed knife 209 co-operating with a blade 210, Fig. 23, on a lever 211 which is oscillated by a cam-actuated bell crank lever 214 through links 212, 213. A suction apparatus connected to the bed 218 holds the severed strip in position while the bed swings vertically to apply it to the glued back of the book, pads 245 on the underside of the knife-carrying lever 210 serving to press the strip on to the padded face of the bed during the creation of the vacuum.
Patent GB-332800-A (GB)
Title: Improvements in and relating to adjustable seats
IPC: A47C7/56
Filed: 1929-09-03
Abstract: 332,800. Nuss, I. M. Sept. 3, 1929. Seat adjustments.-A seat which can be adjusted forwardly and rearwardly, and can be secured in adjusted position, comprises in combination base members 1 bolted to the floor A and having longitudinal dove-tail slots therein, strips 2 engaging the slots and slidable therein, rack bars 3 secured to the strips 2 and having spaced openings 0 therein, a seat structure proper S carried by the strips 2, a bearing block 6 on each member 1 carrying between them a rotatable shaft 7, cog wheels 8, 9 on the shaft 7 engaging the racks 3, a handle in the form of a wing nut 11 on one end of the shaft 7 and a locking member 13, pivoted to a bearing block 6 and adapted to engage the wing nut 11 for retaining the shaft in a desired position.
Patent GB-468551-A (GB)
Title: Method for stopping punctures in air tubes of tyres and device for carrying out the same
IPC: B29C73/22
Filed: 1936-10-02
Abstract: 468,551. Pneumatic tyres. LUWAERT, C. Oct. 2, 1936, No. 26796. Convention date, May 11. [Classes 144 (i) and 144 (ii)] For automatically closing punctures, mica in the form of finely-divided laminµ is injected into the air-tube through the valve-stem. A device for injecting the mica comprises a container 1 with a sealing-cap 2 through which is fitted a conduit 3 leading, past a handoperated cock 7 and non-return valve 5, to a nipple 4 for connection to a compressed-air supply. The mica, agitated in the container, is forced through an outlet-pipe 8, the open end of which is adapted for connection to the valve-stem of the air-tube. To prevent choking, the pipe 8 is fitted with a wire 9, the projecting end of which enters the valve-stem.
Patent GB-843206-A (GB)
Title: Improvements in or relating to recovery of thorium by means of oxalic acid
Inventor: CARTER GILLIAN MARY
IPC: C01F15/00
Filed: 1957-08-26
Abstract: A thorium oxalate concentrate containing also rare earths and phosphate (possibly as a thoriumoxalate-phosphate complex) is prepared from an aqueous sulphuric acid leach liquor obtained from a thorium-bearing ore and containing dissolved rare earths and phosphate in addition to thorium, by precipitating the dissolved thorium with an amount of oxalic acid in the molar ratio of oxalic acid: dissolved thorium of from 3 : 1 to 5 : 1, the leach liquor being from 4 to 6,5 N with respect to total acid (sulphuric and phosphoric).  The ratios of thorium : rare earth and thorium: phosphate in the concentrate are substantially increased over the corresponding ratios in the initial leach liquor.  These ratios can be further increased by digesting the crude thorium oxalate with aqueous sulphuric acid containing oxalic acid whereby more rare earth and phosphate are separated from the solid thorium oxalate.  The resulting aqueous acid extract can be used with additional oxalic acid as precipitant for more of the acid leach liquor.  In examples, ground monazite sand is heated with concentrated sulphuric acid, then water is added and the mixture filtered; the filtrate of acidity 4,9-5,2 is mixed with 3,5-4,2 mols of oxalic acid dihydrate; the resulting precipitate of thorium oxalate concentrate is slurried with 2N aqueous sulphuric acid containing oxalic acid and filtered whereby a more concentrated thorium oxalate is obtained.  Comparative experiments describe the similar precipitations of thorium oxalate from sulphuric leach liquors the acidity of which is 7N or 3N or wherein greater or lesser amounts of oxalic acid are used than required according to the invention, thereby giving a less effective separation of thorium oxalate from the rare earths and phosphate present.
Patent GB-284398-A (GB)
Title: Improvements in apparatus for separating grit, dust and the like from smoke or gases
IPC: F23J15/02
Filed: 1926-10-27
Abstract: 284,398. Parker, A. Oct. 27, 1926. Addilion to 228,236. Density separators.-The apparatus for separating grit &c. from smoke &c. claimed in the parent Specification is provided with one or more diverting walls k, adapted to coact with the ring of vanes or blades i, arranged within an expansion chamber h. The expansion chamber h is disposed at the top of an annular space d formed between a casing a and tundish formation c, and the casing a is provided with a depending tube a<3>. The walls k are tangentially disposed with relation to the ring of vanes i, which they are adapted to cross, and are arranged vertically with the greatest depth at the outer circumference of the ring of vanes i. A series of spirally arranged vanes i is provided on each wall k, a stepped formation l<2>, Fig. 3, occurring between two successive walls k. The vanes i are slightly inclined and are radially arranged.
Patent GB-332803-A (GB)
Title: Process for the simultaneous preparation of fertilisers containing magnesium phosphate and of nitrogenous fertilisers
IPC: C05B9/00
Filed: 1929-09-05
Abstract: 332,803. Uhde, F. Oct. 25, 1928, [Convention date]. Manures.-A process for the simultaneous production of magnesium phosphate-containing mixtures and nitrogen-containing mixtures comprises adding alkali or ammonium sulphate to raw phosphates treated with nitric acid, thereby precipitating gypsum. A magnesium salt, for example, magnesium chloride from the potash industry, is added prior to, or subsequent to the removal of the gypsum. Magnesium sulphate may be employed as the magnesium salt, in which case, the use of an alkali sulphate is unnecessary. The solution is heated to its boiling point, and citratesoluble magnesium, or magnesium ammonium phosphate is precipitated by the addition of ammonia, or alkali carbonate or hydroxide. Ammonia may be removed from the separated precipitate by treatment with an alkaline oxide, or by heating. The solution freed from magnesium phosphate is evaporated to produce a fertilizing salt, which may contain ammonium nitrate and potassium or ammonium chloride, or ammonium nitrate alone, according to the reagents used. The gypsum may be treated with carbon dioxide and ammonia, to produce ammonium sulphate, which may be re-employed in the process, and calcium carbonate, which is mixed, if desired, with the fertilizing salt.
Patent GB-1349053-A (GB)
Title: Container
IPC: B65D5/50
Filed: 1972-06-09
Abstract: 1349053 Containers KINKI PRINTING CO Ltd 9 June 1972 [11 June 1971 15 May 1972] 27107/72 Heading B8P A container comprises a receptacle slidably received in an outer case which is open at one end, the receptacle having a deformable hollow end wall structure accessible through a notch at the open end of the case to facilitate removal of the receptacle. The receptacle X is erected from the blank shown in Fig. 6A, the hollow wall structure comprising panels 17, 21 and 22 and being held in place by a flap 26 having lugs 28, 281 which engage notches 6, 6<SP>1</SP> formed in the double side walls 3, 5 and 3<SP>1</SP>, 5<SP>1</SP>. The other end wall of the receptacle comprises a vertical panel 8 and a sloping panel 13 and is held erect by a flap 15 having lugs 27, 27<SP>1</SP> which engage the notches 6, 6<SP>1</SP>. The panels 13, 21, 22 have partially detached areas 11, 12, 23, 24 defining recesses to accomodate the ends of articles in the receptacle. In a modification, the panels 13, 15 are replaced by a flap (55), the side walls are of a single thickness, the recesses 23, 24 are omitted and the flap 26 is glued to the receptacle base.
Patent GB-337887-A (GB)
Title: A crescendo and diminuendo nuance action for purposes of throttling in pneumatic player musical instruments
Filed: 1929-09-06
Abstract: 337,887. Kõstner-Autopiano Akt.- Ges. May 24, 1929, [Convention date]. Expression-controlling.-To vary the rate of crescendo or diminuendo action in four different speeds by varying the rate of exhaustion or filling of a bellows 8 controlling a throttle valve, three tracker-holes are used, controlling valves 1, 10, and 11 in different combinations. For example, for rapid crescendo, the valves 10, 11 are operated simultaneously with valve 1; for subsequent rapid diminuendo, valves 10, 11 remain raised, only valve 1 being closed. The passages from the valves to the crescendo bellows 8 are controlled by adjustable screws 6, 12, 13. A further valve 22 controlling an unobstructed passage 21 provides for an additional rapid crescendo or diminuendo.