baber/WOPTO huggingface dataset:
Patent GB-413517-A (GB)
Title: Improvements in and relating to process and apparatus for the synthetic production of compounds
IPC: C01C1/04
Filed: 1933-09-02
Abstract: <PICT:0413517/III/1> In the synthesis of compounds, such as ammonia, by reacting in a cyclic system a mixture containing inert constituents, the proportion of the latter in the system is kept low by withdrawing reaction mixture at a high rate, e.g. 10 per cent of the input. The material so withdrawn is passed into a secondary cyclic system working with a higher proportion of inert constituents than the primary system, and conveniently containing a more active catalyst.  Some fresh reaction mixture may also be supplied to the secondary system.  The Figure shows an ammonia synthesis apparatus comprising two cyclic systems each containing a compressor 11, cooler 5, heat-exchanger 3, converter 1, and separator 18.  Fresh reaction mixture is passed into both systems by the pipes 14.  Gas discharged from the primary system is conveyed by pipe 25 to the secondary system, and a proportion of gas from the latter is withdrawn from the apparatus by the pipe 28.  By closing valves 26 and 28 and opening valves 33 and 34, the functions of the systems may be reversed.  In another modification, four cyclic systems are connected to common gas supply and withdrawal mains and also to a gas exchange main whereby on suitable manipulation of valves, gas can be transferred from any one or more systems to the others.  A third modification has three primary systems working in parallel, from which gas is passed to a single secondary system.
Patent GB-641978-A (GB)
Title: Improvements in apparatus for determining the constituent proportions of a gaseous mixture
IPC: G01N27/00
Filed: 1947-09-04
Abstract: <PICT:0641978/III/1> <PICT:0641978/III/2> The proportion of a constituent in a gaseous mixture is determined continuously by absorbing the constituent in an electrolyte and comparing the electrical conductivities of the electrolyte before and after absorption of the constituent.  The process is effected in an integral unit (Fig. 1) comprising a reference cell 1 and a measuring cell 2, both of which contain a pair of platinized platinum electrodes 22, 26 and both of which are integrally mounted in a constant temperature jacket 3.  The electrodes are connected by wires 21, 25 to a Wheatstone bridge, the spacing between electrodes 22 being constant but that between electrodes 26 being adjustable by means of a rack-and-pinion device 24, 27. Electrolyte is fed to reference cell 1 through coiled pipe 5 and overflows into capillary tube 7 by which it is fed through pipe 12 and coiled tube 6 to measuring cell 2.  The gaseous mixture under test enters the coiled tube 6 at 11 and bubbles through the electrolyte in the tube until it reaches cell 2 where the residual gas and used electrolyte are led off by pipes 13, 14 respectively. Flow of electrolyte is regulated by a valve 18 provided with a plurality of ports of different cross-sectional area and is measured by a graduated capillary tube 8. The capillary tube 8 is in communication with the atmosphere at 9. In a modification (Fig. 4) the electrolyte flows in a closed circuit by thermosyphonic effect and is regenerated in pipe 33 by means of a heating jacket 35.  An inactive gas may be introduced at 39 to urge the thermosyphonic motion and the expulsion of the desorbed gases from bulb 34.  When employed to determine the proportion of SO2 and H2S in gaseous mixtures, the electrolyte may be monoethanolamine and the regenerant in jacket 35 may be steam.
Patent GB-532296-A (GB)
Title: A machine for training swimmers
IPC: A63B69/12
Filed: 1939-08-25
Abstract: 532,296. Dynamometers. SMITH, R. J. Aug. 25, 1939, No. 24468. [Class 106 (ii)] [Also in Group XXI] A device for indicating the forward pull of a swimmer comprises a spring c mounted in a graduated tube band connected to the swimmer's harness by a chain g passing over a free-wheel n in a casing a. A ring f at the end of the spring is suitably anchored and a saddle piece d on the casing a is seated on the nosing of the swimming bath. The reaction of the spring between the swimmer's strokes is resisted by friction plates q engaging the centre portion of the weel n. Pressure is adjustably applied to the plates q by plates r and springs t compressed by a wing-nut u on a spindle p mounted non-rotatably in the casing a. The chain g is held in engagement with the wheel n by a spring. The indicator k may operate the stylus of a recording mechanism.
Patent GB-768267-A (GB)
Title: Method of separating acenaphthene, diphenylene oxide, and fluorene from aromatic oils
IPC: C07D307/91
Filed: 1954-08-23
Abstract: <PICT:0768267/IV(b)/1> Acenaphthene, diphenylene oxide and fluorene are obtained from an oil containing them, e.g. a coal-tar fraction, boiling within the range of 260 DEG  to 303 DEG  C., the weight of the oil being at least three times the combined weight of the above substances, by fractionally distilling the mixture, collecting separately the fractions boiling at 265-279 DEG  C., 279-288 DEG  C., and 288-299 DEG  C., and then cooling to crystallization and then removing the crystals separately from each of the fractions.  In a preferred embodiment, the oil to be processed is fed through a conduit 4 and recycle oil through a conduit 6 to a still 2 from which the distillate passes to vessel 20 (265-279 DEG  C.), then to vessel 22 (279-288 DEG  C.) and to vessel 24 (288-299 DEG  C.).  These distillation fractions are then processed individually by cooling them in a heat exchanger 34 to preferably 20 DEG  C. to produce crystallization and then separating out the crystals by centrifuge 48, the crystals being collected in a container 54 and the oil in a tank 52.  In a modification, fractionation is first effected at 265-279 DEG , 279-288 DEG , 288-295 DEG  and 295-300 DEG  C. and after crystallization and removal of the crystals, the resultant oil is removed and added to new oil and the mixture then treated according to the preferred embodiment.ALSO:<PICT:0768267/III/1> Acenaphthene, diphenylene oxide and fluorene are obtained from an oil containing them, e.g. a coal-tar fraction, boiling within the range of 260 to 303 DEG C., the weight of the oil being at least three times the combined weight of the above substances, by fractionally distilling the mixture, collecting separately the fractions boiling at 265-279 DEG C., 279-288 DEG C. and 288-299 DEG C. and then cooling to crystallization and then removing the crystals separately from each of the fractions.  In a preferred embodiment, the oil to be processed is fed through a conduit 4 and recycle oil through a conduit 6 to a still 2 from which the distillate passes to vessel 20 (265-279 DEG C.), then to vessel 22 (279-288 DEG C.) and to vessel 24 (288-299 DEG C.).  These distillation fractions are then processed individually by cooling them in a heat exchanger 34 to preferably 20 DEG C. to produce crystallization and then separating out the crystals by centrifuge 48, the crystals being collected in a container 54 and the oil in a tank 52.  In a modification, fractionation is first effected at 265-279 DEG C., 279-288 DEG C., 288-295 DEG C. and 295-300 DEG C. and after crystallization and removal of the crystals, the resultant oil is removed and added to new oil and the mixture then treated according to the preferred embodiment.
Patent GB-1126394-A (GB)
Title: Improvements in or relating to transmission systems for vehicles
Inventor: BURNHAM HORACE JAMES
IPC: B60K17/30
Filed: 1967-05-26
Abstract: 1,126,394. Arrangement of vehicle driving gear. ROLLS ROYCE Ltd. 26 May, 1967, No. 24553/67. Heading B7H. A pair of driven, steerable wheels in a two or four wheel drive vehicle are driven through drive shafts having inner and outer universal joints, the centre point of the outer joint, which is of the constant velocity type lying outboard of the swivel axis of the wheel. The inner joint may be a constant velocity joint or a Hooke's joint.
Patent GB-968177-A (GB)
Title: Storage receptacle for pulverised material
IPC: B61D5/00
Filed: 1963-06-20
Abstract: 968,177. Pneumatic conveyers. W. HERMANNS. June 20, 1963 [July 11, 1962], No. 24556/63. Heading B8A. A receptacle for pulverized material comprises a container 1 having a discharge opening 3 in its bottom with a flexible non-resilient web 4 secured to the inner edge of the opening and the container walls to which it closely conforms in its relaxed state, and means 6 enabling compressed air to curve the web inwardly away from the walls to eject the material through the opening, the upper part 4 of the web being impervious and the lower part 5 pervious to allow the air to pass through and loosen the material at the opening. In another embodiment, a cylindrical tank has sloping shelves leading to the opening provided with pervious boxes for loosening the material and the web is formed by two longitudinal pieces secured at their ends to inner tank walls.
Patent GB-259252-A (GB)
Title: Improvements relating to the moulding of phenolic condensation products and the like
IPC: B44C1/00
Filed: 1926-10-04
Abstract: 259,252,. Kurz-Kasch Co., (Assignees of Copeland, H. N.). Oct. 5, 1925, [Convention date]. Processes; moulding gums and resins. - Phenolic combustion products are formed with striated or burled markings by fusing a mixture of differently coloured material to a viscous state and subjecting to a pressure adapted to displace the material within a mould. Preferably a tablet of material is formed by cold pressing and this tablet is subjected to a comparatively low fusing temperature within the mould so that the material is in thick viscous condition during its displacement therein. Articles such as automobile steering-wheels, electric switches, buttons, picture frames &c. may be formed. Fig. 1 shows a form of knob which is produced in dies 1, 2, Fig. 5. To provide for the flow of the material, the tablet 3 may be apertured as at 4 or the die 1 may be recessed as at 13, Fig. 8. Variations in design may be obtained by superposing tablets of different sizes or by employing tablets of different shapes.
Patent GB-186057-A (GB)
Title: Manufacture of products for dyeing or printing textile fibres and other materials
IPC: D06P1/28
Filed: 1922-09-11
Abstract: Reduction products of vat-dyes (indigo, thioindigo, anthraquinone hydroazines &c.) are converted into enolic ethereal salts which are stable in air, by the reaction of acids with the hydroxyl groups of the said reduction products.  The conversion may be effected by general methods, for example, by action of an acid chloride on the leuco dyestuff in the presence of a tertiary base; the ethereal salts of sulphuric acid are obtained by the use of chlorsulphonic acid in the presence of a tertiary base, the product being then converted into a stable salt.  In an example, dihydro-indigo is added to a pyridine solution of chlorsulphonic acid in an atmosphere of carbon dioxide and the mass diluted with water and crystallized; the pyridine salt so obtained is converted into an alkali or other salt. Specification 23396/99 is referred to.ALSO:Animal or vegetable fibres are dyed or printed with the stable enolic ethereal salts obtained by the reaction of acids with the hydroxyl groups of reduction products of vat-dyes (indigo, thioindigo, anthraquinone hydroazines &c.); these products are converted on the fibre into the dyestuffs by hydrolysis and oxidation, or by treatment with an oxidizing agent only; the latter method is available particularly in the case of sulphuric acid derivatives of dihydro-indigo and dihydro-thioindigo which are hydrolized and oxidized simultaneously by ferric chloride, bromine, chloride of lime or the like, even in neutral solution.
Patent GB-142739-A (GB)
Title: Improvements relating to differential or balance gearing
Filed: 1919-10-08
Abstract: 142,739. Taylor, C. W. Oct. 8, 1919. Differential or balance gearing is provided with means for obtaining internal friction in the form of spring-pressed blocks A which act simultaneously against two connecting or planetary pinions 16. The pinions 16 supported on a driving casing 18 mesh with driven members 10, 11, which may also be acted on by the members A.
Patent GB-725261-A (GB)
Title: Improvements in or relating to a modulation limiting device for electric pulse modulation multiplex communication systems
IPC: H04J3/00
Filed: 1953-09-07
Abstract: 725,261. Multiplex pulse signalling. PINET, A. E. Sept. 7, 1953 [Oct. 16, 1952], No. 24713/53. Class 40 (5). The amplitude-modulated channel pulses in a multiplex transmitter are prevented from assuming zero amplitude by the addition thereto of pulses of constant amplitude derived from the channel selection pulses. In the four-channel system described, the pulse amplitude modulators 10, 20, 30, 40 are supplied with modulating channel signals from terminals 11, 21, 31, 41 respectively and interlaced pulse trains, for modulation, from the tappings 6 ... 9 respectively of a delay-line distributer 3, supplied with master pulses from a generator 1. The combined negative pulse outputs from the modulators at terminal 18 are added to constant-amplitude negative pulses derived from valve 53 to which pulses from all the tappings 6 ... 9 are fed. The resultant modulated channel pulses at 18 are applied to a differentiating circuit 27, 28 to convert them to sawtooth pulses of varying amplitude which are clipped by valve 25 to give duration-modulated pulses. These are differentiated in the anode circuit 37, 38 of valve 34, the resultant positive trailing- edge pulses being selected by valve 43 and passed as negative position-modulated pulses to the output terminal 24.
Patent GB-403188-A (GB)
Title: New therapeutically valuable compound of ethylhydrocupreine and process for its manufacture
IPC: C07D453/04
Filed: 1932-09-05
Abstract: A compound of ethylhydrocupreine with hexamethylenetetramine and sulphosalicylic acid in the molecular proportions of 1 : 2 : 2 respectively is prepared by interaction of ethylhydrocupreine or ethylhydrocupreine salicylate or the components of the latter with hexamethylenetetramine sulphosalicylate or its components.  The product possesses therapeutic properties.  According to the examples, (1) ethylhydrocupreine sulphosalicylate is prepared from its components in alcohol solution and the double compound treated with sulphosalicylic acid and hexamethylenetetramine dissolved in alcohol, (2) a solution of the three components in alcohol is evaporated in vacuo.
Patent GB-221369-A (GB)
Title: Improvements in or relating to engines for hauling and like apparatus
IPC: F01B17/00
Filed: 1923-10-08
Abstract: 221,369. Knapp, W., and Coested, E. Oct. 8, 1923. Engines with two or more parallel cylinders perpendicular to main shaft; radial-cylinder engines; casings. - A reversible engine suitable for driving haulage, apparatus has an axially-adjustable cam shaft which is coned in opposite directions with central waist portions which directly bear upon and actuate through balls cylindrical, combined admission and exhaust valves for each cylinder. The engine, Fig. 1, has parallel cylinders 11 - - 14 with piston-controlled exhaust ports 32, an overhead cam shaft 16 driven by bevel gearing, and end transverse slide valves 26, 30 which are pressed towards the cams by springs 18 mounted in detachable caps, and which control the supply from a passage 22 to cylinder ports 24 and an auxiliary exhaust through ports 28. The. valves, cam shaft, and bevel gearing are mounted in a detachable casing. In an engine with four inclined cylinders, Figs. 5 and 7, the valves are arranged parallel to the cylinders and worked in pairs from the same cams, and the cylinders are arranged in staggered formation and exhaust into ducts 29, 29<1> leading to a box housing the gears 36, 37 driving the haulage drum 38 by gears 40, 39. The box acts as an exhaust silencer, and the wheel 36 is dished, perforated, and webbed to separate the oil from the exhaust. In a twin-cylinder haulage engine described, the cylinders are double-acting without piston-controlled ports, and the valves are inclined and transverse to the cylinder ends and actuated by cams on shafts parallel to the cylinders.
Patent GB-795234-A (GB)
Title: Stepless variable epicyclic friction gear box
IPC: F16H15/52
Filed: 1954-08-30
Abstract: 795,234. Variable-speed gearing. WEBER, M. Aug. 30, 1954 [Sept. 10, 1953], No. 25107/54. Class 80 (2). A variable-speed friction gearing between driving and driven shafts 35, 36 comprises planetary rollers 53 slidable in the direction of their axes and engaging a friction annulus 49 which is movable axially. of the shafts 35, 36 to vary the speed ratio. A coupling 41, 42, 52 transmits an axial thrust proportional to the torque transmitted to press the rollers 53 against the surfaces they engage. As shown, the rollers 53 are mounted on spindles carried by a support 37 loose on the shaft 35. The rollers have surfaces engaging a cone 38 on the driving shaft 35 and stationary cones 54. The annulus 49, which is driven by the rollers 53 upon rotation of the driving shaft 35, is splined to a sleeve 47 connected to the driven shaft 35 by the torsion coupling 41, 42. The sleeve 47 is connected to the shaft 35 by a thrust bearing 40. Thrust is also transmitted through the coupling to the rollers 53 by spring washers 44 the axial pressure of which is adjustable. The axial position of the annulus 49 is varied by a control member acting through a pivoted arm 51. In a modification the annulus 49 is non- rotary and the shaft 36 is driven through a bevel gear which engages a bevel gear fixed to each roller 53. In another modification the rollers are supported only by friction and toothed gearing and in another modification the roller carrier forms the driven member of the friction gearing.
Patent GB-388683-A (GB)
Title: Improvements in and relating to apparatus for weaving endless warps
IPC: D03D29/00
Filed: 1932-09-09
Abstract: 388,683. Shedding-devices &c. for hand power looms &c. HARVEY, I. F., 37, Booth Street, Bradford, Yorkshire. Sept. 9, 1932, No. 25138. [Classes 142 (i) and 142 (ii).] In weaving with endless warps these are passed around rollers B, B<1> and are shed by a device comprising discs R<1> spaced apart by members R<2> having varying forms or dispositions assembled on a shaft &c. R<3>, which is turned by hand or power so that the warp threads guided by the discs R<1> are raised or lowered to form sheds. Wheels may be mounted on the ends of the shaft which is given successive half, quarter or other turns. The loom may weave leather thongs or raffia and the warp may be made continuous by tying, the knots being arranged to be positioned on flattened parts of the rollers B, B<1>. The shaft R<3> may be placed in either of two series of slots C covered by pivoted piece C<1>. A guide member G may be placed across the warp threads. The weft may be inserted by a needle or shuttle.
Patent GB-1194301-A (GB)
Title: Translucent Instrument Dial Means.
Inventor: HEINKE WALTER MARTIN
IPC: G04B19/30
Filed: 1968-05-27
Abstract: 1,194,301. Indicating-apparatus. STEWARTWARNER CORP. May 27, 1968 [June 7, 1967], No.25152/68. Heading G1J. A tachometer or other indicating instrument with a translucent dial plate has a light source 26, for illuminating the dial from the rear and opaque indicia 50 in front of the translucent dial, the indicia 50 having contrasting portions 52, 54 so that they can be seen even when the intensity of illumination from ambient sources balances that from the rear source 26. The dial 38 comprises a transparent plate 40 (which may be of acrylic or polycarbonate plastics material) with a layer of translucent material 44 (which may be white, silver or light blue paint) leaving an annular area 46 clear for edge lighting by reflection at the bevelled edge 42. The indicia 50 are carried by a front layer 48 of dark coloured plastics film capable of absorbing ambient light when the source 26 is unenergized and of transmitting light from the source 26 when it is energized. The layer 48 may be a transparent plastics film with a surface made light transfusing by applying a vapourized lacquer finish. Each of the indicia 50 comprises an opaque dark coloured substratum 52 and a superimposed opaque light coloured stratum 54, both of which may be formed of ink or paint and which are preferably black and white respectively.
Patent GB-226138-A (GB)
Title: Improvements in and relating to garments
IPC: A41D1/06
Filed: 1924-10-22
Abstract: 226,138. Wright, P. G., and Haffen, J. B. Oct. 22, 1924. Trousers and pantaloon garments.-The leg portion 8 of garments is made with a flap 11 carrying an eyelet 12 for engagement with a lace 10 detachably secured to a loop 9 on the outside seam. The flap, which is intended to be wound round the wearer's calf or ankle, may be intergal with, or may be a triangular piece of material sewn to, the garment.
Patent GB-836029-A (GB)
Title: Method of and apparatus for cleaning articles
IPC: C11D7/50
Filed: 1956-08-17
Abstract: A method of cleaning articles with such volatile solvents as benzine, trichlorethylene, and perchlorethylene which contain a finely-divided filler, for example fibres, pieces of leather, or sawdust, comprises immersing the articles in the filler-containing solvent, and then after-treating the articles with solvent free from filler whilst the articles are still wet with solvent. Suitably both liquids are at a temperature below the boiling-point, and the after-treatment is carried out in the solvent vapour.  This may be achieved in a single container provided with a chamber for the first treatment, a chamber for the after-treatment, and a space for solvent vapour which is common to both chambers and through which the articles can be transported from the first to the second chamber.
Patent GB-532577-A (GB)
Title: Stocking and method of making the same
IPC: D04B1/26
Filed: 1939-09-08
Abstract: 532,577. Knitting. SCOTT & WILLIAMS, Inc. Sept. 8, 1939, No. 25445. Convention date, Jan. 5. [Class 74 (ii)] A stocking knitted upon a circular machine and having a gore 20 formed by reciprocatory knitting between the heel 18 and foot and extending above the heel 18, has a leg 6 with ribbed or purl design. The ribbing may extend into the instep portion. The stocking may have a welt 2, a 1 x 1 rib top and a 6 x 3 rib leg and instep portion. A widened gore 20, followed by a narrow gore 26 may be provided as described in U.S.A. Specification 1,549,307, and rounds of circular knitting 12, 28, plain knitted except at the instep may be provided before the heel and after the narrowed gore 26. The heel may be formed by additional widening to the point 157 and narrowing to the point 158, followed by the normal widening to form the portion 160. A suture may be formed between the points 162, 164 between the widened and narrowed gores 161, 166. The leg and instep may be patterned by reverse plating and by wrapping. The foot may be of the split type and elastic yarn may be knitted into the arch portion, either alone or with a non-elastic yarn. Left-and-right toes may be knitted as described in U.S.A. Specification 1,160,819. The stocking may be produced upon a superposed cylinder machine in which the sliders in the upper cylinder have transfer butts of five lengths, and the lower cylinder sliders either have no transfer butts, where the needles are intended always to knit in the bottom cylinder, or are of one of two lengths. Pattern controlled transfer cams are provided, and to control the sliders at transfer a separating cam 66, Fig. 5, is provided. Specifications 24290/12 and 230,185, [both in Class 74 (ii)], and U.S.A. Specification 1,154,116, also are referred to.