baber/WOPTO huggingface dataset:
Patent GB-856409-A (GB)
Title: Improvements in and relating to a new pyridazine derivative and its process of preparation
IPC: C07D237/20
Filed: 1959-07-24
Abstract: The invention comprises 3-hydrazino-pyridazine-6-carboxamide, and acid addition salts thereof ; and the preparation thereof by reacting a 3-halogeno-pyridazine-6-carboxamide with hydrazine. The process is advantageouly conducted by refluxing the halogen compound with hydrazine hydrate in an anhydrous organic solvent such as ethanol. This process may be combined with the preparation of the 3-halogenopyridazine-6-carboxamide by the following sequence of reactions : levulinic acid is condensed with hydrazine to form 6-methyl-3-pyridazinone, this is halogenated, e.g. with bromine in acetic acid, to a 6-methyl-4-halogeno-3-pyridazinone, this is dehydrohalogenated with alkali, e.g. KOH, to 6-methyl-3-pyridazone, this is oxidized, e.g. with bichromate and sulphuric acid, to 3-pyridazone-6-carboxylic acid, this is esterified, e.g. to an alkyl 3-pyridazone-6-carboxylate with an alkanol, this is treating with a halogenating agent, e.g. phosphorus oxychloride, to give, for example, an alkyl 3-halogeno-pyridazine-6-carboxylate, and this is treated with ammonia to give the required starting material. Acid-addition salts referred to are the tartrate, maleate, citrate and sulphate.
Patent GB-733401-A (GB)
Title: Improvements in flame spray apparatus, particularly for spraying with a fusible material
IPC: B05B7/20
Filed: 1951-05-02
Abstract: 733,401. Spraying fusible materials. RHEEM MANUFACTURING CO. May 2, 1951 [Sept. 20, 1950], No. 25508/53. Divided out of 733,334, [Group III]. Class 69 (3). Flame-spraying apparatus comprises a spraying nozzle 236 with a central channel 410 to which powdered composition is fed at 262, and compressed air is supplied through a converging channel 416 to drive the composition from the central channel about which is arranged a flame jet 460 to direct a flame in the axial direction. The molten material is sprayed through a tube 238 on to the work 10. Compressed air is fed through a conduit 432 to an annular channel 436, and passes through openings 438 and is directed forwardly between a member 440 and a sleeve 442, and then passes rearwardly between said sleeve and a further sleeve 444 to longitudinal channels 430, and then through converging channel 416. Oxygen and acetylene are delivered to an annular mixing and combustion chamber 456 and the burning gas mixture passes through openings 458 to an annular chamber between the central channel 410 and the sleeve 444. The burning gases are emitted through circumferentially spaced openings at the end of the annular chamber. The tube 238 includes a sleeve 246 pivoted at 256 to an arm 258 on the tube, and rollers 254 on the sleeve ride on the work. Alternatively, set screws 248 retain the sleeve in position on the tube.
Patent GB-1524758-A (GB)
Title: Electrical resistance assemblies
IPC: H01H9/42
Filed: 1977-06-20
Abstract: 1524758 Resistors SIEMENS AG 20 June 1977 [18 June 1976] 25629/77 Heading H1S In a circuit-breaker the resistance discs 14 of a resistance stack 12 mounted on a stem 15 are maintained in a central position in an insulating support 16 by spacing means 17, which is provided within the stack and which comprises relatively axially-displaceable parts 18, 19 and a plurality of support members 21; upon parts 18, 19 being moved together abutment faces 23 urge respective members 21 radially outwardly against the inner surface of support 16. As shown, support members 21 are constituted by pins having insulating tips 27. In various modifications (not shown) pins 21 may be engaged by further pins (28) which may be adjustable. Alternatively the support members 21 may comprise insulating spheres.
Patent GB-1275612-A (GB)
Title: Adamantyl-s-triazines
Inventor: NARAYANAN VENKATACHALA LAKSHMI
IPC: C07D251/18
Filed: 1969-05-20
Abstract: 1275612 2,4 - Diamino - 1,3,5 - triazine derivatives E R SQUIBB & SONS Inc 20 May 1969 25735/69 Heading C2C Novel 2,4-diamino- 1 ,3,5-triazine derivatives of the general formula wherein R and R‹ are each a hydrogen or halogen atom or a C 1-5  alkyl, C 1-5  alkoxy, phenyl or phenyl-C 1-5  alkyl group, R<SP>1</SP> is a hydrogen atom or a C 1-5  alkyl group, R<SP>2</SP> is a hydrogen atom or a C 1-5  alkyl or halo-C 1-5  alkyl group, R<SP>3</SP> and R<SP>4</SP> are each a hydrogen atom or a C 1-5  alkyl or phenyl-C 1-5  alkyl group and n is 0, 1 or 2, and acid addition salts thereof are prepared by reaction of a biguanide of the general formula with a carboxylic acid or derivative thereof of the general formula R<SP>2</SP>COX, wherein X is the residual moiety of an acid, acid halide, acid anhydride or ester, followed optionally by salification. Hydrochlorides of biguanidines of the second general formula above are prepared by reaction of the hydrochloride of a primary or secondary amine containing the desired adamantyl group with an optionally substituted dicyandiamide. 1 - Adamantylmethylamine hydrochloride is prepared by reaction of 1-adamantane-carboxylic acid with thionyl chloride, treatment of the resulting 1 -adamantane-carboxylic acid chloride with ammonia, reduction of the 1- adamantane-carboxamide so obtained with lithium aluminium hydride and treatment of the 1-adamantylmethylamine so formed with ethereal hydrogen chloride. 2- (1 -Adamantyl) -ethylamine hydrochloride is prepared analogously. 1- Adamantylacetic acid is prepared by treatment of 1 -bromoadamantane in dichloroethylene with sulphuric acid containing boron trifluoride. Pharmaceutical compositions having antimicrobial and hypoglycemic activity comprise, as active ingredient, a 2,4-diamino-1,3,5-triazine derivative of the first general formula above or physiologically acceptable acid addition salt thereof, together with a conventional vehicle, and may be administered orally or parenterally.
Patent GB-297972-A (GB)
Title: Apparatus for playing games
IPC: A63F7/00
Filed: 1927-09-29
Abstract: 297,972. Pennell, E. R. Sept. 29, 1927. Indoor games.-In an apparatus for use in playing ball games wherein a large number of light balls are projected through a vertical tube by a current of air and the players endeavour to catch them in baskets or other receptacles as they fall, a perforated ceiling or cover is provided for projected balls to fall upon and pass through. A polygonal framework is provided with a perforated ceiling D surmounted by a domed roof C. The balls are blown by a fan G up a two-part tube F, E so as to fall upon, and pass through, the perforated ceiling D below which the players manipulate their catching baskets. These are provided with handles and may be suspended by cords from the upper part of the apparatus. A canvas floor H returns missed balls to the air tube, a wire partition f<1> preventing them dropping on the fan. The interior of the apparatus may be divided by vertical radial partitions of netting. The air tube and the domed roof C may be made of glass to allow the balls to be observed, and the ceiling D may consist of perforated steel or of wire netting.
Patent GB-1095987-A (GB)
Title: A cover of plastics foil for greenhouses and hotbeds
IPC: A01G9/14
Filed: 1965-06-18
Abstract: 1,095,987. Garden frames. S. A. U. JORGENSEN. June 18, 1965 [June 23, 1964], No. 25988/65. Heading A1E. [Also in Division E1] A cover of plastics foil 1 for a greenhouse or hot bed is provided at each side with a channel 2 having an opening at each end and a number of partitions 4 forming pockets 5 which are filled with water to hold the cover taut when it is in position over the frame of the greenhouse or hot bed.
Patent GB-1421109-A (GB)
Title: Process fro producting electric cable insulated with cured polymeric material
IPC: B29C48/30
Filed: 1974-06-12
Abstract: 1421109 Extrusion coating cables DAINICHI-NIPPON CABLES Ltd and MITSUBISHI PETROCHEMICAL CO Ltd 12 June 1974 [12 June 1973] 26030/74 Heading B5A [Also in Division H1] An electric cable is produced by extruding a crystalline polymer and a cross-linking agent R on to a conductor 1 in a long-land die 3 (1 to 50 m. long) to the inner surface of which a lubricant 4 is fed, curing the polymer, and cooling the polymer in a main cooling apparatus 52 containing pressurized cooling fluid after passage through a relatively mild cooling zone 51 contain fluid (which may also be pressurized) at between 40 C. and the melting point of the polymer. Braking is applied to the conductor to compensate for the pull exerted on the cable covering by the pressure of the cooling fluid in the manner-described in Specification 1,408,947. The lubricants described in Specification 1,380,942 are supplied from an annular reservoir 42 through a slit 43 in the die 3. The polymer may be a polyolefin or copolymers of poly-α- olefins such as E.V.A. Several extruders are connected to a cross head die to form semiconductive and insulating layers on bare or nylon cloth coated conductors.
Patent GB-1189105-A (GB)
Title: Improvements in Decorative Extrusions
Inventor: KENT CECIL
IPC: B29C48/06
Filed: 1966-06-10
Abstract: 1,189,105. Extruded strips. CREATORS Ltd. 12 June, 1967 [10 June, 1966], No. 26062/66. Heading B6G. [Also in Division E1R] A decorative extrusion comprising a flexible part of opaque material and a metallized decorative bead is produced by extruding an aluminium foil or metallized transparent plastics foil as an insert within a transparent plastics material and feeding the bead through a heated cross-head of an extruder which extrudes and presses against the bead a compatible opaque flexible material to heat-bond the flexible material to the surface of the bead. In the Figure, a trim strip comprises a bead 1 extruded with a sheath of transparent polyvinyl chloride encapsulating a core comprising an extrusion of polyvinyl chloride 2 to the surface of which is bonded a foil 3 of polyethylene terephthalate having a metallized surface and, bonded to the bead, coloured flexible polyvinyl chloride webs 4, 5 and 6.
Patent GB-872939-A (GB)
Title: Improvements in devices for cleaning rollers, more particularly for textile machines
IPC: D01H5/62
Filed: 1959-07-29
Abstract: 872,939. Textile-roller cleaning-apparatus. REITERES F., and WINDISCH, L. July 29, 1959 [Dec. 9, 1958], No. 26085/59. Class 120(2) Apparatus for cleaning textile-rollers where rubbers are associated with a suction-system, comprises means for automatically removing the rubber from the corresponding roller at pre-determined intervals to facilitate the action of the section system. In Fig. 1, the rubbers 5 are carried by the mouthpieces 4 of suction ducts 1 which are intermittently oscillated by a cam 2 or by electromagnetic, hydraulic or pneumatic means. The mouthpieces are mounted on plates 7 so as to be adjustable with respect to the ducts. In Fig. 8, two rubbers are provided for each roller and are secured to the corresponding duct by springs 25; a rod 23 is moved to and fro by a cam 2 so for dogs 24 to withdraw one rubber at a time from the rollers. In Fig. 4 a similar effect is produced by mounting the rubbers on rods such as 8 which are alternately raised and lowered by the mechanism shown.
Patent GB-447314-A (GB)
Title: Electrical systems employing space discharge devices
IPC: H03F1/54
Filed: 1935-09-20
Abstract: 447,314. Protective cut-out arrangements. STANDARD TELEPHONES & CABLES, Ltd., 63, Aldwych, London.- (Assignees of Doherty, W. H. ; 35, King Street, Morristown, New Jersey, U.S.A.) Sept. 20, 1935, No. 26108. Convention date, Dec. 20, 1934. [Class 38 (v)] [See also Group XL] A protective system for electrical apparatus employing a thermionic valve with associated input and output circuits, is operated by changes in relationship of the voltages in the input and output circuit and acts to disable the input circuit. The Figure shows a radio transmitter in which the power amplifier comprises two valve stages 70, 71, the coupling 72 between which involves no phase change so that the output voltage of 71 is in phase with the input voltage of 70. The two circuits are coupled through a variable inductance 82 and condenser 83 in series, the common point being connected over a high-frequency ammeter 84 and condenser 85 to earth. For normal working conditions, the reactances 83, 82 are balanced by adjusting the latter until no current flows in 84. On the occurrence of any abnormality in the system, such as a short- or open-circuit or other material variation of circuit constants, the phase and /or magnitude of the output current is changed, the balance of 82, 83 is disturbed and a current flows through 84, 85. This current is rectified in the bridge 86, and energizes relay 89 which in turn energizes relay 63 thereby breaking the input circuit of the amplifier 64. Relay 89 is kept closed by holding coil 90 until switch 91 is opened. If the amplifier 70, 71 comprises an odd number of valves, the reactances 83, 82 are of like kind and may be capacities or inductances, Figs. 1 and 2 (not shown). Also, if the phase difference between input and output circuits of the amplifier is neither zero nor 180 degrees (due, e.g. to phase shift in coupling 72), the reactances 82, 83 may be combinations of resistance and capacity or resistance and inductance as the case requires. The input circuit may be disabled by methods other than that shown in the Figure.
Patent GB-627547-A (GB)
Title: Improvements in or relating to colour photography
IPC: G03C7/46
Filed: 1944-12-29
Abstract: 627,547. Colour photography. DANLOS, P. A. L., and CIRIEZ, R. F. DAUBIGNY-. Dec. 29, 1944, No. 26128. Convention date, Dec. 20, 1943. Drawings to Specification. [Class 98 (ii)] A multicolour picture is obtained on a support coated with a single silver halide emulsion by exposing the emulsion under separate colour component positives of an object, either simultaneously or in succession and in registration, developing, removing the negative silver image produced, differentially exposing the resulting composite residual positive silver halide image through one colour component negative masked by positives of the other colour components and developing and processing to the appropriate colour, and repeating the process with all but one of the remaining colour-component negatives masked by the appropriate positives, the final image remaining in the coating being uniformly re-exposed, developed, and processed to colour. A threecolour picture may be obtained on a support carrying silver halide emulsion layers on each side by producing two colour component positives in one emulsion by the above process and producing the third colour component positive in the other emulsion in the usual way. A four-colour picture may also be produced. The colour images may be produced by colour development (the yellow image may be produced by a pyrogallol developer containing little or no sulphite), dye-toning, or chemical toning.
Patent GB-364140-A (GB)
Title: Electromagnetic relay arrangement for indicating temperature
IPC: H01H47/14
Filed: 1930-09-02
Abstract: 364,140. Temperature alarms. ALLM€NNA SVENSKA ELEKTRISKA AKTIEBOLAGET, Võsteras, Sweden. Sept. 2, 1930. No. 26178. Convention date, Sept. 2, 1929. [Class 47 (i).] A relay for use in an arrangement for indicating a predetermined temperature has two opposed windings 3, 4, Fig. 2, on the core 5, one of which is connected in parallel with a resistance 1, which is formed of material which varies in resistance with temperature change, and the other being in parallel with a resistance 2, which is independent of temperature change, the junction points of the windings and resistances being interconnected at 6 so as to form a bridge connection, as shown in Fig. 1. The coil 4 is arranged normally to predominate so that the pivoted armature 7 is held attracted, as shown, but when the ambient temperature rises the consequent rise in the value of the resistance 1 causes an equalization of the opposing forces of coils 3, 4. The armature 7 may, at the corresponding temperature, be held in the attracted position by the remanent magnetism in the coil 5, but on the slightest excess of temperature above this limit the consequent neutralization of the remanent magnetism allows the armature to be withdrawn by its spring 8, so breaking contact between springs 9 to produce a signal or the like. The relay armature may be restored by opening a push-button switch 10 in the circuit of coil 3, and the balance between the coils may be varied by an adjustment of the variable resistance 2.
Patent GB-318177-A (GB)
Title: Improvements in or relating to the manufacture of steel having good machining properties
IPC: C21C5/34
Filed: 1929-08-28
Abstract: 318,177. Borggrõfe, F. Aug. 29, 1928, [Convention date]. Purifying and refining.-In a process for the manufacture of freely-machining steel, particularly useful for the production of pressed nuts, a charge rich in silicon and with an adjusted phosphorus content is decarbonized with suitable additions of de-oxidizing agents in acid-lined containers.. The charge rich in silicon is prepared by the fusion in a cupola furnace of a charge of scrap iron, haematite iron, high percentage haematite, silicon iron, or ferro-silicon, and the phosphorus content is adjusted to that required in the end product by the addition of Thomas pig iron. In an example scrap steel with 0.05 per cent phosphorus is melted in a cupola with silicon iron and Thomas pig iron and the melt then introduced into an acid-lined Bessemer converter, ferro-manganese added, and the melt decarbonized. A steel produced by the process may contain 0.2 to 0.5 per cent phosphorus, 0.3 to 0.6 per cent manganese, 0.4- 0.1 per cent carbon, 0.05-0.15 per cent sulphur and up to 0.25 per cent silicon. In the Specification as open to inspection under Sect. 91 (3) (a) it is stated that the phosphorus content may be adjusted by the addition to the cupola of other substances containing phosphorus e.g. ferrophosphates, apatite or vivianite. This subject-matter does not appearin the Specification as accepted.
Patent GB-1283607-A (GB)
Title: Improvements in and relating to optical switching arrangements
Inventor: AINGER FRANK WILLIAM
IPC: H03K3/42
Filed: 1969-05-23
Abstract: 1283607 Dielectric storage arrangements PLESSEY CO Ltd 7 May 1970 [23 May 1969] 26334/69 Heading H3B A storage element comprises a material which is normally antiferroelectric but which may be changed to a ferroelectric condition by the application of an electric bias field E s , Fig. 1. In the ferroelectric state the material has two stable polarization states E s (a) and E s (b). The polarization may be moved between these two states by the application of alternate positive and negative pulses of magnitude E f -E a , the 2 fields E f  and E a  being those required to saturate the material as shown in Fig. 1. The two stable states may be detected using a light beam which is transmitted by one state and blocked by the other. The material may therefore be written into by the application of a bias and an appropriate polarity pulse, and may be read optically. A sheet of the material may be provided with an array of bias electrodes to form a matrix store which may be read using a single light source and appropriately placed photo-detectors, Fig. 2 (not shown). Suitable materials are PbO.ZrO 2 .SnO 2 .TiO 2 , NaNbO 3  and (Pb 0À92 Sr 0À05 La 0À02 )(Zr 0À53 Sn 0À30 Ti 0À17 )O 3
Patent GB-338966-A (GB)
Title: Improvements in and relating to iron railway sleepers
IPC: E01B3/16
Filed: 1929-08-29
Abstract: 338,966. Buchholz, T. Nov. 20, 1928, [Convention date]. Sleepers, metal; railway permanent way.-Iron railway sleepers, formed from a long rolled bar with thickened parts for rail-securing purposes and cut into sleeper lengths, have the thickened parts a, Fig. 4, formed into guide ribs for the rails, with or without rail seats. The sleeper lengths are re-rolled, pressed or forged to form swells for the guide ribs, and at the same time the rail seats may be inclined. If forged, the sleepers are capped at the ends at the same time. A central reinforcement b enables the gauge to be adjusted in the final pressing. Sleepers metal, and securing rails thereto; chair keys; railway permanent way; forging- punches; die-rolling.-The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following subject-matter. The reinforcement may extend around the sleeper, Fig. 14, (Cancelled) and the guide ribs are upset by pressing. The bolt recesses to the ribs may be finished by this pressing or by subsequent milling. The rail seat may be widened in forming the swells and the swells reduced by milling out the parts f, g, Fig. 17, (Cancelled). Recesses may be rolled in the swells to facilitate forming undercut recesses for the bolt-heads. The bolt-head recesses in the ribs d, Fig. 25 (Cancelled), may be undercut by drifting with a tool n, expanding from a rectangular part o to a part p having the finished form of the recess. The tool n is used with a block m having a groove for the drift and transverse grooves for the guide-ribs. The recesses c, Fig. 30, (Cancelled), may be widened from both sides by a shoe-shaped p, or widened from one side by the punch and drifted from the other side. The material between the ribs d, Fig. 31 (Cancelled), may be pressed down to form a longitudinal or transverse rib t, s at the centre of the rail sea, or transverse ribs at the ends of the seat with intermediate inclines to engage the ballast. The guide ribs X, Fig. 34 (Cancelled), may be undercut by milling, drifting, or bending as shown at Y to form parallel or inclined ways for keys Z used to secure the rails. The guide ribs d, Fig. 22 (Cancelled) may be bent outwards to form a recess c for the bolt heads, while the clips i engage stops h. The sleeper top is forced up at k to strengthen the rail seat. The Specification also contains the subject-matter of Specifications 338,986 and 338,987. This subject-matter does not appear in the Specification as accepted.
Patent GB-648567-A (GB)
Title: Improvements connected with couplings
IPC: F16C11/04
Filed: 1948-10-11
Abstract: 648,567. Linkwork. FRANCIS & BARNETT, Ltd., and FRANCIS, G. I. Oct. 11, 1948, No. 26386. [Class 80(iii)] [Also in Group XXV]  Two rods 9, 10, Fig. 1, are coupled together by means of two link members 1, 2 with inter-engaging convex surfaces on the two end parts 3, 4, or one of these surfaces may be flat. Rubber blocks 11. 12 or springs are provided in the links to keep the said convex surfaces in resilient engagement. In Fig. 5 a rod 20 is coupled to a lever 21 by means of a link 22 secured to the rod and having a convex surface on its end part 23 engaging with a flat surface 25 in a cut-away part 24 of the lever. In this case a spring 26 is provided to maintain the engagement but a rubber block may be employed.