baber/WOPTO huggingface dataset:
Patent GB-1427303-A (GB)
Title: 2,4,6-trioxotetrahydro-1,3-oxazines
IPC: A01N43/86
Filed: 1974-03-07
Abstract: 1427303 2,4,6-Trioxo-tetrahydro-1,3-oxazines BAYER AG 7 March 1974 [9 March 1973] 10226/74 Heading C2C Novel compounds have the Formula III in which R<SP>1</SP> represents a hydrogen atom, an optionally branched C 1-12  alkyl group or a 5- membered or 6-membered cycloalkyl group, the alkyl groups being optionally substituted by a phenyl group which is unsubstituted or subsubstituted in one or more positions with fluorine, chlorine, bromine, a C 1-3  alkyl group or a trifluoromethyl group; or in which R<SP>1</SP> represents a phenyl or naphthyl group which is unsubstituted or substituted in one or more positions with a C 1-3  alkyl group or with a trifluoromethyl group; R<SP>2</SP> and R<SP>3</SP>, which may be identical or different, each represents a hydrogen atom, an optionally branched C 1-18  alkyl group or a 5-membered or 6-membered cycloalkyl group, the alkyl groups being optionally substituted by a phenyl group which is unsubstituted or substituted in one or more positions with fluorine, chlorine, bromine or a C 1-3  alkyl group; or in which R<SP>2</SP> and R<SP>3</SP> each independently represents a phenyl or naphthyl group, unsubstituted or substituted in one or more positions with fluorine, chlorine, bromine, alkoxy having 1 to 3 C-atoms or alkyl having 1 to 3 C-atoms; or in which R<SP>2</SP> and R<SP>3</SP> are joined together to form an alkylene bridge having from 4 to 6 C-atoms, optionally interrupted by oxygen or sulphur; and R<SP>4</SP> represents an optionally branched alkyl group containing from 1 to 6 C-atoms or a 5-membered or 6- membered cycloalkyl group, the alkyl groups being optionally substituted by a phenyl group; or R<SP>4</SP> represents a phenyl group which may be unsubstituted or substituted with fluorine, chlorine, bromine, C 1-3  alkyl, trifluoromethyl, an alkoxy group having 1 to 3 C-atoms or an NO 2  group. The oxazines of Formula III are obtained by reacting a #-amino-acrylic acid ester of Formula I wherein R represents a C 1-12  alkyl or a C 5-6  cycloalkyl group, the alkyl groups being optionally substituted by a phenyl group which in turn may be unsubstituted or substituted by F, Cl, Br or a C 1-3  alkyl group, with a bis- (halocarbonyl)-amine of Formula II wherein X represents chlorine or bromine. Preferred reaction conditions are a molar ratio of I : II of 1 : 1 to 1 : 2, a temperature of 0 to 200 C. and the presence of an inert solvent and/or an acid acceptor. Examples prepare oxazines of Formula III in which R<SP>1</SP> is CH 3  or phenyl; R<SP>2</SP> is H, CH 3 , phenyl, benzyl, p-methoxyphenyl, m-methylphenyl, 2,6-dimethylphenyl or cyclohexyl; R<SP>3</SP> is H or CH 3 ; and R<SP>4</SP> is CH 3  or phenyl. The compounds of Formula III possess fungicidal properties.
Patent GB-944583-A (GB)
Title: Improvements in or relating to means for attaching together articles of wearing apparel
IPC: A41B3/04
Filed: 1960-03-23
Abstract: 944,583. Garment fastenings. W. O. WHITE. Feb. 27, 1961 [March 23, 1960], No. 10227/60. Heading A3V. [Also in Division E2] Attachment means for attaching together articles of wearing apparel 12, 16 comprises a first element 10 of thermo-plastic material for attachment to one article and presenting a longitudinally extending channel 13 the mouth 14 of which is restricted relative to the internal width of the channel and at least one wall of which is provided with spaced-apart transversely extending slits 19, and a second element 11 of thermo-plastic material for attachment to another article and presenting a bead 17 and a flange 18 the bead being engageable with or disengageable from the channel 13 of the first element by relative longitudinal sliding movement between the elements the flange 18 being arranged to extend through the mouth of the channel when the bead 17 is engaged therein. The elements are attached to the articles by sewing.
Patent GB-541935-A (GB)
Title: Improvements relating to boiler and like furnaces
Filed: 1940-06-12
Abstract: 541,935. Furnace grates. HOLLAND, L. G. June 12, 1940, No. 10252. [Class 51 (i)] A boiler furnace is provided with a grate comprising a central flat portion 3 and side portions 4, 5 inclined at such an angle to the horizontal that lines drawn centrally through them and normal to their planes intersect at a point slightly below the top of the furnace flues. Substantially the whole amount of the air for combustion is supplied beneath the grate and so adjusted relatively to the chimney suction as to produce balanced draught conditions. Specification 534,397 is referred to. Reference has been directed by the Comptroller to Specifications 17228/04, [Class 51], and 335,552 [Class 51 (i)].
Patent GB-218761-A (GB)
Title: A device for holding safety razor blades for sharpening
IPC: B24D15/10
Filed: 1923-04-16
Abstract: 218,761. Scott, C. A. April 16, 1923. Stropping-apparatus.-A holder for sharpening safety-razor blades comprises two jaws 1, 2 pivotally united by a tubular rivet 3 which passes through wings 4, 5 formed on the jaws. The jaws are forced together at their front ends, to grip the blade, by springs 6 surrounding the rivet, and the amount of opening of the jaws is limited by extensions of the wings. The jaws are mounted on a handle 20 by a rivet 12, which passes through the rivet 3 and prongs 11 of the handle. The handle is split longitudinally, the two portions being united by a cap 9 and by a rivet 10, which has an extension 13 extending between the rear ends of the jaws and serving to limit the swing- ing movement thereof. In each jaw is mounted a cup 14 carrying a projecting ball 15 which rolls on smaller balls 16 mounted in notches 17 in a retainer 18. The balls contact with the sharpening-element when the device is in operation, and define the angle the blade makes with the sharpening-element. Specifications 218,951 and 218,952 are referred to.
Patent GB-1489104-A (GB)
Title: 4-o-alpha,d-glucopyranosyl-6-o-alpha,d-xylo-hexopyranosyl-2-deoxystreptamine a process for its preparation and compositions incorporating it
IPC: C07B61/00
Filed: 1975-03-12
Abstract: 1489104 A 4-O-α,D-glucopyranosyl-6-O- α,D - xylohexopyranosyl - 2 - deoxystreptamine ROUSSEL-UCLAF 12 March 1975 [12 March 1974] 10271/75 Heading C2C Novel compound Iα and acid addition salts thereof is prepared by alkaline hydrolysis of a compound XIIα or a mixture thereof with the #-anomer and, if necessary, separating the compound Iα from its #-anomer. Compound XIIα and its #-anomer are prepared by Konigs-Knorr condensation of a compound X with a compound VII and hydrogenolysis of the benzyl group. Compound X is prepared by acid hydrolysis of 3<SP>1</SP>,4<SP>1</SP> - di - O - acetyl - 5,6 - O - cyclohexylidenetetra - N - methoxycarbonyl - neamine which is prepared by acetylation of 5,6-O-cyolohexylidene-tetra-N-methoxycarbonyl-neamine. Compound VII is prepared from compound II by demethylation of the NH-CH 3  group followed by reaction with Cl-COOEt to give NH-COOC 2 H 5  benzylation of the 2-OH group, substitution of 1-OC 2 H 5  by 1-OCOCH, and chlorination to give 1-Cl. Compound (Iα) has antibiotic activity and forms with a suitable vehicle a pharmaceutical composition which may be administered orally, parenterally, rectally or topically.
Patent GB-691862-A (GB)
Title: Improvements in or relating to electrical measuring instruments
IPC: G01R15/00
Filed: 1950-04-27
Abstract: 691,862. Bridge circuits; current and voltage measurements. BUTLER, Ltd., H., and BUTLER, H. April 27, 1951 [April 27, 1950], No. 10361/50. Class 37. An instrument is connected in a network employing non-linear resistors in one or more arms so as to use a major portion of the available deflection to measure a selected portion of the current or voltage range, the resistance of one or more of the linear arms of the network being variable by control means on the instrument so as to vary the limits of the selected range. A Wheatstone bridge has two opposite arms formed by lamps L1, L2, the other pair of opposite arms being formed by linear resistances R1, R2. For testing the voltage of an accumulator the lamps L1, L2 and resistances R1, R2 are so chosen that the bridge is balanced when the voltage applied across terminals E is equal to that of the accumulator in the tow condition of charge. If the voltage is higher than this the current through the lamps L1, L2 and consequently their resistance, rises. The bridge becomes unbalanced and current flows through the instrument G. A switch S in the position shown connects the instrument G in series with a resistance r3 across the diagonal of the bridge. In the alternative position of the switch S the resistance r2, forming part of the resistance arm R2, is short-circuited so that the resistance r1 forms this arm. At the same time the sensitivity of the instrument G is altered by substituting a resistance r4 for the resistance r3. The change in the resistance of the arm R2 changes the lower limit of the selected range. Shunt resistances may be employed instead of the series resistances r3, r4. Instead of employing a bridge circuit the instrument may be shunted by a non-linear resistance in series wth a variable linear resistance.
Patent GB-830924-A (GB)
Title: Process for producing shaped articles from polyethylene
IPC: C08K3/10
Filed: 1956-04-04
Abstract: Shaped articles are made from compositions of linear polyethylene and 0.01 to 3% of one or more inorganic salts or oxides of metals of Group IIa, IIb, or IVb.  The polyethylene may be produced as described in Belgian Specifications 533,362, 534,792 and 534,888, and specified oxides and salts, which may be added as solutions or suspensions during the working up or purification of the polymer, are calcium carbonate, phosphite and oxide; cadmium, barium, lead, magnesium and zinc carbonates; lead sulphate and orthosilicilate; magnesium sulphate and oxide; and zinc oxide.  Optional additives are copper phthalocyanine and unspecified stabilizers, dyestuffs, pigments, fillers and plastics.  Specification 808,286 also is referred to.
Patent GB-582498-A (GB)
Title: Improvements in or relating to the catalytic dehydrogenation of hydrocarbons
IPC: B01J23/80
Filed: 1943-06-28
Abstract: A catalyst for the dehydrogenation of hydrocarbons comprises a major proportion of zinc oxide, a minor proportion of an oxide of iron, manganese, chromium, cobalt, or nickel, and a small amount of potassium or sodium oxide.  A stabilizer may also be present, consisting of a non-acidic oxide of a metal other than the alkali and alkaline earth metals, and an addition of 1 per cent. of silica gel is advantageous.  The hydrocarbons treated may be mono-olefins or aralkyls with at least two carbon atoms in the alkyl group.  They may be diluted with 1-30 volumes of steam and treated at 1,000-1,600 DEG F.
Patent GB-436098-A (GB)
Title: Improvements in or relating to electrical measuring and control systems
IPC: G05B11/01
Filed: 1934-04-06
Abstract: 436,098. Electric signalling systems. PARKER, H. F., 435, West 23rd Street, New York, U.S.A.-(Assignee of Parker, H. F., and Aceves, J. G.) April 6, 1934, No. 10487. Convention date, April 21, 1933. [Class 40 (i)] In a system for the measurement of small direct-current voltages such as those derived from a pyrometer, the unknown voltage is balanced against a known voltage across a potentiometer resistance, the differential voltage due to any unbalance being applied to. a thermionic value which effects a control to restore balance. The valve is supplied through a converter which converts the differential voltages into corresponding A.C. values so as to facilitate amplification. As shown in Fig. 1, the output of a thermo-couple 1 is converted into a corresponding A.C. value by a converter 13 comprising a rotary interrupter or vibrating relay and the output of the converter is applied through thermionic amplifiers 15, 15<a> to a motor 9 which drives the movable contact 6 of the potentiometric resistance 3 until the thermo-couple voltage is balanced. In a modification, the derived A.C. values are reconverted into D.C. values which are applied to a field circuit of a D.C. motor. In a further modification, the movable contact 6 may be operated by a continuously driven motor through friction clutches. Fig. 7 shows a potentiometer adapted for both " full and "open" scale readings. When the switch 78 is in the upper position the resistance 76 is brought into use and the system operates in the manner previously described to deal with the " full " range of values to be measured. When switch 78 is moved into engagement with the lower contact, resistance 77 is switched into circuit and together with resistances 81-88<a> selectable by moving contact 95, adapts the system to " open " scale operation for different sections of the " full range. The system may be adapted for control, e.g. temperature control, by a modified arrangement wherein the contact 6 is set manually to the temperature to be maintained and the motor is replaced by a relay which in turn controls the temperature.
Patent GB-153845-A (GB)
Title: Improvements in means for regulating draught in furnaces
IPC: F23L13/00
Filed: 1920-04-15
Abstract: 153,845. Anderson, J. O. April 15, 1920. Chimney terminals. - The draught of a furnace is controlled by variation in the level of water in a tank 10 into which the down-turned end of the furnace flue 7 projects. The water level is maintained at any desired height by means of a float 28 adjustably connected to a three-way valve 18 through which water is supplied or drawn off according as the level is above or below the normal. Manually-controlled supply and draw-off valves 15 and 15<1> are also provided. In the case of metallurgical furnaces, volatile constituents such as mercury, collect in the water and are drawn off through a pipe 12.
Patent GB-387543-A (GB)
Title: Improvements in television transmission systems
IPC: H04N7/10
Filed: 1932-04-13
Abstract: 387,543. Television. FERNSEH AKT.- GES., Goerzallee, Zehlendorf, Berlin. April 13, 1932, No. 10595. Convention date, April 17, 1931. [Class 40 (v).] Television signals are transmitted over power distribution overhead networks, preferably by carrier working. The signals transmitted in this way may be used to modulate short-wave wireless broadcasting transmitters.
Patent GB-1504361-A (GB)
Title: Double pipe heat exchangers
IPC: F22B1/18
Filed: 1975-03-14
Abstract: 1504361 Heat exchanger; waste gas steam generation SCHMIDT'SCHE HEISSDAMPF GmbH 14 March 1975 [15 March 1974] 10759/75 Headings F4A and F4S A heat exchanger contains substantially straight double-pipes 1 each comprising an outer tube 4 and an inner tube 5 connected at their ends to a headers 6 and 6<SP>1</SP> in such manner that the outer tubes 4 communicate with the interiors of the headers, whereas the inner tubes 5 pass through the headers. The outer tubes 4 have thickened walls 9 at their ends at their junctions with the headers. Cracked gases to be cooled (produced in pyrolytic cracking processes) are passed through the inner tubes 5 from a head 2 to a head 3. Cooling water is passed through the outer tubes 4 from the headers 6 and leaves as steam through headers 6<SP>1</SP>. The cooling water enters headers 6 through feed pipes (not shown) and the steam leaves through steam pipes (not shown) leaving each of the headers 6<SP>1</SP>. The headers 6 are arranged in a row and the headers 6<SP>1</SP> are arranged in a row. (Alternatively the headers could be pipe rings). The headers of each row are welded together, e.g. at 13, and thus form gas-tight pipe end plates. The cross-section of the headers may be oval (as shown), round or polygonal.
Patent GB-473887-A (GB)
Title: Improvements in and relating to an internal combustion engine with means for varyingthe compression ratio
IPC: F02B75/04
Filed: 1936-04-15
Abstract: 473,887. Driving-gear. HIRONAKA, Y., and TSUNEDA, K. April 15, 1936, No. 10864. [Class 7 (ii)] [Also in Group XXIX] The pressure of combustion gases taken from the engine cylinder is utilized to vary the compression ratio by altering the dead-centre position of the piston. This position may be altered (1) by varying the distance between the axis of the piston-pin and the piston-head, (2) by varying the length of the piston rod, or (3) by mounting the crank-shaft in an eccentric bearing. As shown, an eccentric sleeve 3 loosely mounted on a gudgeon pin 2 is embraced by an eccentric strap on the connecting-rod 5. A worm-wheel 4 on the sleeve 3 but concentric with the pin 2 is rotated to adjust the piston by a worm 6 fixed on a square shaft 7 slidable through a pinion 8 engaging a rack 10 terminating in a plunger 12 working in a cylinder 11. When the explosion pressure becomes excessive, a valve 15 opens, gas passes via a conduit 16 to a chamber 17 so as to open a valve 18, enter the cylinder 11 and depress the plunger against the action of a spring 13, whereby the piston is lowered and the compression ratio is reduced. On fall of pressure, the valves 15 and 18 are closed, and the spring 13 returns the plunger to normal position, the gas passing to the atmosphere or to an inlet manifold 20.
Patent GB-769629-A (GB)
Title: An improved optical device for producing pattern repeats
Inventor: CELTON MARTIN OAKLEY
IPC: G02B17/06
Filed: 1955-04-15
Abstract: 769,629. Optical apparatus. RANK PRECISION INDUSTRIES, Ltd., [formerly BRITISH OPTICAL & PRECISION ENGINEERS, Ltd.]. April 15, 1955, No. 10914/55. Class 97(1) An optical device for producing a number of juxtaposed repeats of a master pattern comprises a number of periscopes, one for each unit of the repeat pattern, each periscope consisting of two reflectors, one of which is disposed in a cluster in front of an eye piece formed in a panel which carries the second reflector of each periscope in echelon formation and which is appropriately inclined towards the master pattern. The master pattern is set up at O in front of a panel 1-2, and is viewed directly by the observer's eye at E. The pattern is also observed by reflection in a first mirror Ml forming one of a cluster of reflecting surfaces A mounted on a glass sheet supported on a pillar, and a second mirror M2 adjustably mounted on the panel 1. The normals of the reflecting surfaces lie in the same plane, so that the image is not rotated. A number of mirrors M1, M2 are arranged in such a way that a number of evenly spaced images of the master pattern O are observed from E, so that the effect of an all-over repeating pattern can be observed. The reflector cluster can be replaced by a second reflector cluster, so that the effect of both straight patterns and half drop patterns can be observed. The mirrors M2 are mounted on hinged slides or adjustable screws so that they can also be readily interchanged between the two sets of positions required.
Patent GB-899393-A (GB)
Title: Improvements in or relating to commutators
IPC: H01R43/08
Filed: 1961-03-27
Abstract: 899,393. Making commutators. BOSCH G.m.b.H., ROBERT. March 27, 1961 [April 30, 1960], No. 11006/61. Class 83 (2). [Also in Group XXXV] A commutator is made from a copper bar comprising a short leg 10<SP>1</SP> extending perpendicularly from the end of a long leg 10<SP>11</SP> by stamping the bar to form segments connected by thin webs 11 at their front faces and having anchoring claws 12 at their rear faces, removing the webs at the end having short legs 10<SP>1</SP>, rolling the bar laterally into an annulus, moulding a hub of insulating material 13 therein so that the claws 12 are firmly embedded and then machining to remove the remainder of the webs 11 to electrically separate the segments and form a running surface for the brushes. Slots (not shown) are sawn into each of the short legs 10<SP>1</SP> into which may be soldered two or more wires of an armature winding. A hub support is provided by a steel bush 14. In a modification, the bar may be of a U cross-section with a short leg at each end, those at one end being removed by the machining operation.
Patent GB-1147559-A (GB)
Title: Retractable tool supporting apparatus for mounting on the slide of a machine tool
IPC: B23B29/034
Filed: 1967-03-08
Abstract: 1,147,559. Boring bars. BULLARD CO. 8 March, 1967 [6 June, 19661, No. 11020/67. Heading B3C. A retractable boring bar assembly 10 which may be one of a number carried by a tool slide 12, comprises a boring bar 14, pivoted to a base 16 at 31, and a finger 64 for locking the bar in the boring position. The boring bar is adjustably secured to a holder 30 which is connected to a piston 40 by a link 32, and a piston rod 38. Finger 64 is connected to the piston rod 58 of a piston 56. A member 90 having keys 92, 96, of different angles is adjustable by a screw 100, so as to provide lateral adjustment to tool 82, and vertical adjustment is provided by screws 108, 114. Constant spring or fluid pressure is applied to the rod side of pistons 40, 56, so as to retract holder 30, and finger 64. In operation, fluid pressure is applied to the head sides of the pistons, and piston 40 pivots holder 30 until bore 74 is aligned with finger 64. Piston 56 now moves downwardly, and holder 30 is locked by the finger engaging bore 74.
Patent GB-858288-A (GB)
Title: Improvements in or relating to travelling wave tubes
IPC: H01J25/40
Filed: 1957-04-04
Abstract: 858,288. Travelling wave tubes. SIEMENS & HALSKE A.G. April 4, 1957 [April 6, 1956], No. 11077/57. Class 39(1). In a travelling wave tube having an interdigital delay line the cross sectional area of the electron beam is small relative to the cross sectional area of the field of the interdigital delay line and the beam is located solely in a region in which a particular frequency harmonic of the fundamental space wave predominates. The beam is adjusted to travel in the correct region by electron optical or mechanical means. The electron optical means consists of deflecting means and the mechanical means consists of means for relative adjustment of gun and delay line. The delay line is preferably a flat interdigital line of width less than #/1 and the tube functions as a backward wave oscillator, a flat electron beam passing to one side of the line and if desired a second flat beam passing on the other side of the line. The field amplitudes along different longitudinal sections of the delay line are plotted for frequencies f, 2f and 3f in Figs. 2a, b, c, respectively (not shown). For frequency f the fundamental component is mainly at the central region IV, Fig. 1, of the delay line, the frequency harmonic content increasing, and the fundamental content decreasing, in both directions away from the central region IV. For an operating frequency of 2f this wave predominates in regions II and VI and for a frequency of 3f this wave predominates in region IV and between regions I and II ; and VI and VII. For frequency f therefore a high current small diameter beam flows along region IV for 2f along II or VI and for 3f between regions I and II or VI and VII.
Patent GB-382879-A (GB)
Title: An improved table dish
IPC: A47G19/02
Filed: 1932-04-19
Abstract: 382,879. Carving dishes. ELLIS, D. P., 65, Park Avenue, Gillingham, Kent. April 19, 1932, No. 11139. [Class 128.] A reversible carving dish, of the kind which on one side presents a raised central flat carving surface with a gravy channel and sump and on the other side serves when inverted to hold semi-liquid foods, has its raised central surface 1 in the plane of the upper edge 5 of the peripheral rim 4 so that when the dish is reversed it rests on the edge 5 and the surface 1. The gravy channel 2 gradually deepens towards the sump 3.