baber/WOPTO huggingface dataset:
Patent GB-166277-A (GB)
Title: Improvements in explosives
IPC: C06B21/00
Filed: 1919-10-10
Abstract: 166,277. Rintoul, W., Nolan, T. J., Stickland, O. W., and Nobel's Explosives Co., Ltd. Oct. 10, 1918. Explosives.-Relates to hardened granulated fibrous nitrocellulose powders for shot guns, consisting of mixtures of fibrous nitrocellulose, metallic nitrates, and moderating ingredients that are granulated and subsequently hardened by treatment with a solvent medium that does not destroy the fibrous appearance of the grain. According to the invention, the hardening is performed by means of non-volatile gelatinizing- agents entirely without or with a reduced quantity of volatile solvent instead of by means of volatile solvent as heretofore. A large number of examples are described. In one of these, a wet mixture of 76 parts of nitrocellulose, 10 parts of barium nitrate, 2 parts of potassium nitrate, and 4 parts of mineral jelly are mixed and incorporated under an edge-runner, then rubbed through a sieve of 10 meshes to the inch. The sifted material is placed in a steam-heated revolving pan, and, when the grains are correctly formed and contain about 50 per cent moisture, the grains are transferred to a revolving vessel where 8 parts of benzyl formanilide in solution in 5 parts of a mixture of one part of alcohol and two parts of benzene is sprayed on the grains. The grains are then removed from the vessel and the small amount of volatile medium dried out, leaving the grains well hardened. Specifications 127,871, 127,873, and 166,502 are referred to.
Patent GB-654072-A (GB)
Title: Improvements in or relating to mixed fertilizers
IPC: C05B1/06
Filed: 1947-09-11
Abstract: Mixed fertilizers containing nitrogen and citrate soluble phosphates are made by mixing superphosphates or weakly ammoniated superphosphate with water and ammonia or with aqueous ammonia in amount equivalent to more than 4 mols. NH3 per mol. of P2O5 in addition to that required to neutralize the free acid present in the superphosphate, the mixing being effected in such manner that the mixture shows throughout the mixing operation an alkaline reaction when tested with moist indicator (e.g. brom-thymol blue or phenol phthalein), paper. Superphosphate may be mixed with an amount of aqueous ammonia exceeding that which can react instantaneously but not exceeding that which ultimately can react and stored in a closed container until the smell of ammonia has become sufficiently faint or has disappeared.  Ammonia used in excess or not yet fully reacted or present in a volatile form may be removed by heating, e.g. to 70 DEG C, or by passing air through the product at ordinary or elevated temperatures; or the ammonia used in excess or not yet fully reacted or present in a reactive form, such as in di- or tri-ammonium phosphate, may be reacted with acids, acid anhydrides or acid salts, thus carbon dioxide may be passed through the mixture and the resulting ammonium carbonate may be left in the product or be removed by volatilization.  Ammoniation may be effected in stages, thus superphosphate may either be slightly ammoniated to produce weakly ammoniated phosphate and the latter may then be reacted with ammonia according to the invention, or be ammoniated with excess ammonia and the intermediate product may be mixed and reacted with superphosphate or multiple superphosphate.  The superphosphate can, prior to or subsequent to ammoniation, contain or be mixed with other substances and the aqueous ammonia can contain, dissolved and/or suspended, ammonium salts or other fertilizing substances.
Patent GB-811419-A (GB)
Title: Gear finishing
IPC: B23Q7/04
Filed: 1957-08-08
Abstract: 811,419. Gear-finishing. NATIONAL BROACH & MACHINE CO. Aug. 8, 1957 [Oct. 8, 1956], No. 25025/57. Class 83 (3). [Also in Group XXX] A gear-finishing-machine comprises a transfer device 36 (omitted from Fig. 1) for moving an unfinished internal gear to a position adjacent the tool T, and means for ejecting a finished gear from a chuck 14 into the transfer device and thereby ejecting the unfiished gear on to the tool. The tool T may be a shaving cutter or a plastic tool with abrasive particles embedded therein, and may be given a reciprocation axially of the gear with intermittent feed, or a " plunge " feed. A vertically adjustable knee 17 supports a slide 18 movable to and from the work-holder 14 and carrying a slide 20 attached by a link 22 to an air cylinder 24. The slide 20 carries a tool head 26 adjustable angularly about a centre passing through the tool. An adjustable back plate 30 supports the transfer arm 36 and gear supply-and-discharge shoots 38, 82. The arm 36 is oscillated about a pivot 40 by a fluid-operated device 46, between limits set by an abutment 90 and a switch LS1. Unfinished gears are fed by gravity along a shoot 38, being released past a switch LS2 by a fluid-pressure device 78 operating a bell crank 62 through a toggle linkage 68, 70, one arm of the bell crank releasing the leading gear while the other arm checks the following gear. When the head 100, Fig. 7, of the transfer arm is between the shoots, an air-operated device 104 pushes a gear 108 from the delivery shoot 38 into a recess 112 and moves a double-headed piston 116, 118 to push a finished gear 108 into the discharge shoot 82. When the head of the transfer arm is between the withdrawn tool 126a, Fig. 8, and the chucked gear 108, the latter is pushed from the chuck, causing the loaded gear 108 to be pushed on to the tool. If the gear is ejected on to the tool and does not mesh with it, a lever having a rounded end engages the bottom inner surface of the gear, and is moved up. wardly to actuate a switch and stop the machine. When the arm is withdrawn, the cutter carries the gear into the chuck. Projecting from the cutter head are fingers (not shown) which fit loosely within a work-gear to prevent it swinging as it enters the chuck, but allow the gear to rotate freely while they remain in position during finishing. Chucks.-The gear is clamped in the chuck by dogs 136, Fig. 13, on rods 150, each having a helical slot engaged by a fixed pin 174. As the rods 150 are drawn back by forked arms 168 on a pneumatically operated rod 158, they are rotated to swing the dogs into clamping position. On the unclamping stroke of the rod 158, the dogs 136 are swung aside, and the rod continues to advance against a spring 164 to move a head 154 to eject the gear into the transfer head. Specification 806,399 is referred to.
Patent GB-740792-A (GB)
Title: Improvements relating to high-voltage electrical switchgear
Inventor: CHRISTIE JOHN
IPC: H01F38/30
Filed: 1953-09-10
Abstract: 740,792. High tension switches. REYROLLE & CO., Ltd., A. Aug. 30,1954 [Sept. 10, 1953], No. 25047/53. Class 38(5) High voltage switchgear includes a live - tank circuitbreaker 10 supported wholly by an insulator 11 of moulded synthetic resin in which a current transformer primary 12 is embedded. The tank 10A of a smalloil - volume circuitbreaker may also be moulded of synthetic resin and may be integral with the insulator. The movable contact 14 may be operated by an insulating mechanical linkage 16 arranged outside the insulator, or by pneumatic or hydraulic means similarly arranged. The winding 12 comprises an elongated single turn loop extending along the insulator between fixed contact 14 and terminal 18, and surrounding, at its lower end, a hole 19 through which the secondary winding and core may be threaded. An air-blast circuit-breaker, Fig. 2 (not shown), may be similarly arranged, the insulator being then provided with a longitudinal passage for the air blast. A series isolating switch, also operated by the air blast, may be mounted externally of the insulator. In an alternative arrangement the circuitbreaker may have a downwardly opening. movable contact operated by linkage extending through a passage in the insulator. The insulator may have a thin porcelain sleeve formed with external sheds, or may itself be formed with integrally moulded external sheds
Patent GB-189907-A (GB)
Title: Rotary drilling machines for drilling wells or the like
IPC: E21B3/04
Filed: 1921-09-21
Abstract: 189,907. Greve, E. E., and Oil Well Supply Co. Sept. 21, 1921. Bore-hole apparatus. - A machine for drilling wells &c. comprises a base 2 supporting a rotatable table which may be integral or in two connected parts 3, 4, .a bevel gear 15 rotatably mounted on the table and driven by a shalt 17, slidable members 19 whereby the table and gear 15 may be locked together, and slidable members 31 whereby the table may be locked to the base. An inner member 10 may be locked to the table by sedable members 11 and receives means sLidably engaging the drill rods to drive the latter or receives slips B to hold the rods while adding or removing rod sections; where large-diameter drill rods are used, the part 10 is removed and the driving means or slips B are placed in the part 9 of the table. When drilling, the part 10, the table and gear 15 are connected by the slidable members 11, 19 ; the slidable member 31 is released. When adding or removing rod sections, the table is locked to the base by the means 31, the slidable members 19 are released, posts E, D are fixed to the table and gear 15 to co-operate with tongs F, H secured to adjacent rod sections and the string of drill rods is suspended from the table by the slips B; the gear 15 is then rotated to connect or disconnect the adjacent rod sections G, C. Thrust collars 8, 39 prevent vertical movement of the parts. Inclined roller bearings 25 are provided between the table and the base and are supported in a recessed plate 26. Anti-friction rings 36,37 are provided between the table and gear 15. Lubricant channels 41, 42 convey lubricant from a reservoir 40. Interlocking annular tongues 43 prevent access of dirt &c.
Patent GB-820410-A (GB)
Title: Method of bending glass sheets
IPC: C03B23/027
Filed: 1956-08-16
Abstract: 820,410. Bending glass sheets. PITTSBURGH PLATE GLASS CO. Aug. 16, 1956 [Aug. 18, 1955], No. 25067/56. Class 56. In the bending simultaneously of two glass sheets for laminated wrap-around windshields having two sharply bent side wings and the top of the centre portion between the wings bent transversely, the sheets are pre-cut to very slightly different sizes, where necessary, to compensate for the slight misalignment at the edges, after bending, that otherwise occurs when two identically shaped sheets are bent together. The Fig. shows the slight differences at 12, 121 and 20, 20<SP>1</SP>. Particular dimensions are quoted.
Patent GB-408509-A (GB)
Title: Improvements in or relating to filaments of highly refractory material for electric incandescent lamps and discharge tubes
IPC: H01K3/02
Filed: 1933-09-11
Abstract: 408,509. Electric incandescent lamp filaments. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Sept. 11, 1933, No. 25112. Convention date, Oct. 13, 1932. [Class 39 (ii).] A filament for electric incandescent lamps and discharge tubes is made by winding a helically coiled wire into a second helix which is in the same sense as the first. Such a filament has a greater resistance to deformation than one in which the two helices are in opposite senses. Fig. 2 shows a filament in which both helices have been wound towards the right, as indicated in Figs. 2<a> and 2b. The wire may be a highly refractory material such as tungsten or rhenium. An inert gas filling of argon and nitrogen, in which at least 90 per cent is argon, is described as suitable for electric incandescent lamps made according to the invention.
Patent GB-367760-A (GB)
Title: Improvements in or relating to permanent waving device
IPC: A45D7/00
Filed: 1930-08-22
Abstract: 367,760. Hair- - waving appliances ; heating water by electricity. FUCHS, C., 12, Schifflande, Zurich, Switzerland. Aug. 22, 1930, No. 25130. Convention date, Sept. 4, 1929. Void [Published under Sect. 91 of the Acts]. [Class 131.] A generator, for supplying steam to a hollow perforated curling tube or tubes on which the hair is wound, comprises a casing 5 and a central rod 6, both formed of insulating material, and between which are situated two spiral electrodes 12, 13 embedded in an absorbent compound 11 which acts as a resistance. The rod 6 is provided at its ends with bores 8, 7 which communicate with the interior of the casing through perforations 9, 10 respectively. The electrodes 12, 13 are connected to contacts 14 and, when water supplied from a tank through the inlet 3 is absorbed by the compound 11, it is stated to act as an electrolyte and to be vaporized, the steam passing through the perforations 10 to an outlet 15 connected by a flexible tube to the curling tube or tubes. In a modification, the rod 6 is formed of metal and acts as an electrode, one of the spiral electrodes being omitted. The steam may be produced by the use of gas or hot air instead of electrically.
Patent GB-1475880-A (GB)
Title: Sorbent thermoset foam materials
IPC: B01J20/22
Filed: 1973-05-25
Abstract: 1475880 Solid absorbents for gases MINNESOTA MINING & MFG CO 6 June 1974 [25 May 1973] 25182/73 Heading B1L [Also in Division C3] Gases are preferentially sorbed by a black thermoset foam which has been made by pyrolysing a mixture of at least one aromatic nitrogen-containing compound having the general formula: in which Ar represents an aromatic nucleus in which X and Y are substituents and which optionally carries additional substituents, X represents a substituent having a negative Hammett sigma constant (i.e. having a reducing action) and attached to the aromatic nucleus by a nitrogen, oxygen or sulphur atom and Y represents a substituent having a positive Hammett sigma constant (i.e. having an oxidising action) and attached to the aromatic nucleus by a nitrogen atom, the substituents X and/or Y optionally forming part of a ring fused onto the aromatic nucleus, and which is liquid under the pyrolysis conditions and at least one Lewis acid metallic salt, and removing the Lewis acid metallic salt from the material resulting from the pyrolysis. The foams may be used, optionally mixed with activated charcoal, to remove noxious or poisonous gases, e.g. HCN or HF, from air, and H 2 S and SO 2  from combustion waste gases.
Patent GB-481881-A (GB)
Title: An appliance for use in locating and drawing transition and lemniscate curves
IPC: B43L11/00
Filed: 1936-09-16
Abstract: 481,881. Calculating-apparatus. RICHARDS, E. W. W. Sept. 16, 1936, No. 25214. [Class 106 (i)] [Also in Group XX] An appliance for use on plans for determining lemniscate or other transition curves suitable for use in laying out roads &c., comprises a rule having marked thereon a set of deflection rays a and a series of related transition curves g, the rays and curves having a a common point of origin. The rule which is preferably transparent may have a protractor scale b for measuring the deviation angle between the two tangents to be joined by a transition curve. Each ray of the protractor b is numbered and the deflection ray defining transition curve segments at the ends of which tangents make with each other half the' angle of the ray of the protractor b is correspondingly numbered. Further related data may be tabulated in the columns e, f. An interpolation diagram k is provided to facilitate the determination of curves between the marked curves. The rays a are selected so that they mark off equal chords on the curves thus providing data from which the curves may be readily layed out on the ground.
Patent GB-729940-A (GB)
Title: Improvements in or relating to bearings
IPC: F16C35/02
Filed: 1952-10-08
Abstract: 729,940. Bearings. JOHNSON, H. A. Sept. 22, 1953 [Oct. 8, 1952], No. 25260/52. Class 12 (1). [Also in Group XXII] Means for releasably supporting a rotary shaft in a housing 1 comprises a bearing 12 having a radial slot 11 which is adapted to be moved into or out of register with a slot 16 in the wall of the housing 1. After the shaft is inserted through the registering slots 11, 16, Fig. 4, the bearing is rotated by means of a handle 15 to the out-of-register position shown in Fig. 3. Stop means are provided at the limiting positions. A bracket 13 engages a groove 14 in the bearing 12 and thereby prevents endwise movement of the bearing. The invention is shown in Fig. 2 applied to supporting the roller 5 of a sheet-metal bending machine.
Patent GB-532563-A (GB)
Title: Improvements relating to branched pipes
IPC: F16L41/00
Filed: 1939-09-07
Abstract: 532,563. Pipe joints. STEWARTS & LLOYDS, Ltd., and BLAIR, J. S. Sept. 7, 1939, No. 25354. [Class 99 (i)] Branched metal pipes are reinforced at the junction by a plate c formed with holes d, e which are threaded over the pipes before they are joined, the plate being welded to the pipes. The plate may be circular or arcuate, instead of V-shaped, or may be formed as two straight portions. Further, the plate may be divided diametrically across the holes d, e, either in the plane of the pipes or transversely thereto ; or it may be divided transversely between the holes.
Patent GB-390061-A (GB)
Title: Improvements in and relating to light sensitive devices
IPC: F16F9/52
Filed: 1932-09-12
Abstract: 390,061. Light-sensitive cells. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Metcalf, G. F. ; 1319, Union Street, and Kling, A. J. ; Box 140, Aqueduct Road, both in Schenectady, New York, U.S.A.) Sept. 12, 1932, No. 25398. Convention date, Sept. 11, 1931. [Class 40 (iii).] In a process for the manufacture of lightsensitive cells comprising a foundation member coated with selenium and contained within an envelope, the selenium is introduced into the envelope, vaporized under vacuum conditions, temporarily deposited by condensation on a surface within the envelope and subsequently transferred under vacuum conditions from said surface to the foundation member. A glass plate 1 is covered with a gold film which is baked to a temperature of about 150‹ C., and subsequently subjected to an engraving process to form two electrode surfaces separated by a curved channel 3 for the selenium. The plate is mounted eccentrically in a glass block 5 by metal blocks 6 secured to terminal wires 9 and amass of selenium is placed on the uncoated side of the plate. The block 5 is sealed in a glass envelope 8 which is evacuated. The envelope arrangement is heated to about 350‹ C. to vaporize the selenium, which on withdrawal of the heating supply is caused to condense on the inner surface of the walls of the tube by external cooling means. Heater coils 14 prevent the condensation of selenium near the stem of the tube 8. The selenium is again vaporized and, on removal of the heatsource 13, condenses more particularly on the engraved face of the plate 1. To prevent revaporization, a small amount of inert gas, such as nitrogen or argon is introduced into the tube when the selenium is deposited on the electrode surface and may be withdrawn before the envelope is sealed.
Patent GB-1301980-A (GB)
IPC: C07H15/16
Filed: 1971-04-19
Abstract: 1301980 8-Norlincomycins UPJOHN CO 19 April 1971 [28 April 1970] 25416/71 Heading C2C  Compounds of the formula and its acid addition salts (where R and Me are 1-8 C alkyl and Y is NO 2 , NH 2 , NHAc or NAPc; Ac is alkanoyl or aralkanoyl of up to 8C and Pc is the acyl residue of L-2-pyrrolidinecarboxylic acid) are prepared by sequences 1 (steps 1-5) or 2 (steps 6-10) Pharmaceutical compositions useful as antibacterials comprise compound (I) and a carrier.
Patent GB-826980-A (GB)
Title: Improvements in and relating to electrical sound reproducing devices
IPC: H04R1/28
Filed: 1956-08-20
Abstract: 826,980. Sound magnifying appliances. GRAY, V. C. Aug. 6, 1957 [Aug. 20, 1956], No. 25421/56. Class 13. [Also in Group XXXIX] A loud-speaker or a directly-connected electromagnetic motor is positioned between two bowed, resilient, resin-impregnated plywood walls 12, 13 which are braced by struts 14 and ties 16, the walls being mounted on a wood or plastic base 10 with a spacing which is less than their minimum surface dimension. As shown in Figs. 1 and 2, an electromagnetic loud-speaker 20 with a core diaphragm 21 is suspended between the walls by four strings or wires 22 and the base is slotted to provide a sound path from a flared central portion 25. Apertures 24 may be provided in the walls. In a modification, Figs. 5, 6 and 7, a strut 29 which bears against, but not fixed to, the walls is fitted to the suspended loud-speaker. External string or wire ties 28 are also provided which engage struts 27. The walls may alternatively be directly vibrated by an electromagnetic motor 38, Fig. 8, the motor comprising two armatures 30, 31 each connected between a wall and an internal tie 32, 34 associated with the opposite wall surface.
Patent GB-1421541-A (GB)
Title: Securable fastener
IPC: E05B13/00
Filed: 1972-05-31
Abstract: 1421541 Fasteners C G SMITH 12 July 1973 [31 May 1972] 25452/72 Heading E2A A fastener comprises a base member 10 attachable to a door or window frame, a securing member 13 mounted on the base member 10 for restrained movement relative thereto, and having a handle 14 connected thereto, and securing means 17, 18 mounted on the base member 10 for engagement with the handle 14 upon pivotal movement of the handle into a predetermined position relative to the base member 10. The handle 14 is provided with an aperture 19 of a shape complementary to that of the securing means. The profile of the securing means is irregular so that once it has passed through the aperture 19 it may be rotated to hold the handle in its predetermined position. In a further embodiment the securing member is in the form of a slidable, cylindrical bolt the handle extending laterally from one end thereof.
Patent GB-504697-A (GB)
Title: Improvements relating to electrically heated ovens
IPC: H05B3/66
Filed: 1938-08-31
Abstract: 504,697. Electric resistance ovens. UHLENDORFF, O. Aug. 31, 1938, No. 25513. Convention date, Aug. 31, 1937. [Class 39 (iii)] An oven is heated by flat strip resistances I arranged side by side with their broad sides facing the oven interior, the strips being supported by interconnecting cross-bars 2 and spaced apart by spaced insulators 4 engaging their edges. The insulators 4 and the ceramic supporting hooks 3 are arranged in common channels. Adjacent insulators 4 may be interconnected by cross-bars 5.
Patent GB-803249-A (GB)
Title: Brown vat dyestuffs
IPC: C09B57/00
Filed: 1956-08-21
Abstract: The invention comprises dyes of the formula <FORM:0803249/IV (c)/1> where R is nitro, amino, halogen, methyl or ethyl, n is 0 or 1, and m has a value of 0-3, and the alkali metal leuco-disulphuric ester salts thereof.  They are made by heating a 2.3-dichloro -1.4-naphthoquinone with a 31-hydroxy-(benzo - 11.21.1.2 - carbazole) unsubstituted in 41-position, in presence of an acid accepter.  They dye and print cotton brown shades.  In examples: (1) 2.3-dichloro-1.4-naphthoquinone and 31 - hydroxy - (benzo - 11.21 : 1.2 - carbazole) are refluxed in pyridine; (2) 8-nitro-2.3-dichloro - 1.4 - naphthoquinone and 31 - hydroxy - (benzo - 11.21 : 1.2 - carbazole) are refluxed in pyridine, and the nitro body may either be used direct in dyeing or printing, when reduction of nitro to amino takes place in the vat or paste, or is reduced in a separate step with alkaline sulphide or hydrosulphite; (3) 31 - hydroxy - 8 - methyl - (benzo - 11.21.1.2 -carbazole) is heated in pyridine with 2.3-dichloo-1.4 -naphthoquinone or its 8 nitro derivative; (4) 31 - hydroxy - 7 - chloro - (benzo - 11.21.1.2-carbazole) is heated in pyridine with 2.3-dichloro-1.4-naphthoquinone or its 8-nitro derivative; (5) the product of 1 is converted to its leuco-sulphuric ester salt with iron and chlorsulphonic acid in pyridine in presence of cuprous chloride; (6) 2.3-dichloro-1.4-naphthoquinone and 31 - hydroxy - (benzo - 11.21 : 1.2 - carbazole) are heated with alcoholic potash or with a mixture of monochlorbenzene and pyridine.