baber/WOPTO huggingface dataset:
Patent GB-833029-A (GB)
Title: Therapeutic compostions and preparation thereof
IPC: A61K31/65
Filed: 1957-03-20
Abstract: Calcium dioxytetracycline is prepared by dissolving oxytetracycline hydrochloride and calcium chloride in water and adjusting to pH 5.5 with sodium hydroxide.  It is used in the preparation of stable aqueous suspensions for oral use (Group VI). Specification 742,157 is referred to.ALSO:A palatable stable therapeutic composition comprises calcium dioxytetracycline (see Group IV (b)) suspended in a concentrated aqueous sugar solution or in a concentrated aqueous sorbitol solution, i.e. containing 40 to 70% of the sugar or sorbitol. Preferably, the solids in the composition are reduced to a particle size of less than 100 microns before suspension in the aqueous vehicle.  Sucrose solutions especially those containing 40 to 67% w./w. sucrose are preferred and such may contain other sugars such as invert sugar and glycerol or glycols.  In the case of sorbitol, a 70% aqueous solution is preferred.  For oral preparations viscosities of 40-100 centipoises are preferred. Optical additions are (a) sweetening agents such as sodium cyclohexane sulphamate and saccharin, (b) flavouring agents such as chocolate, cocoa, coffee; fruit flavour, e.g. raspberry; oils of peppermint, spearmint and orange; and fruit acids such as citric, ascorbic and tartaric; (c) dyes; (d) preservatives such as sodium and calcium propionate, cinnamaldehyde, 2,4-hexadienic acid, methyl- or propyl-parahydroxy benzoic acid and quaternary ammonium compounds such as benzalkonium chloride; and (e) antioxidants such as sodium bisulphite and sodium metabisulphite. Specification 742,157 is referred to.
Patent GB-1125102-A (GB)
Title: A solenoid actuator and a solen oid actuated fluid control valve
Inventor: HAIRE CHRISTOPHER ADRIAN
IPC: H01F7/16
Filed: 1965-03-03
Abstract: 1,125,102. Valves. WESTLAND AIRCRAFT Ltd. 1 March, 1966 [3 March, 1965], No. 9132/65. Heading F2V. [Also in Division H1] A solenoid actuator, e.g. for operating a fluid flow control valve, comprises a magnetic circuit including a magnetic element, i.e. a plunger 1, connected therein by two non-magnetic gaps, the element being mounted so as to be capable of movement along a path at least one end of which is determined by a stop and of being maintained in said stop position, when not actuated, by a biasing means or spring 10, and means, i.e. a core 15, responsive to electric current for producing in the magnetic circuit a flux whose magnitude is related to said current, the two non-magnetic gaps being so proportioned and disposed that movement of the element is related to the current and to the biasing force. As illustrated in the Figure, the magnetic circuit comprises the following items of magnetic material: an adjustable bush 2, an outer solenoid shell 3, an end body comprising a fluid inlet 4, a fixed bush 5 and element or plunger 1. The flux path 21 lies within said magnetic material except for the gaps between the respective end portions of plunger 1 and the bushes 2 and 5. Fixed to the plunger is a non- magnetic top bearing 8 slidably mounted in bush 2. A bottom bearing 7 fixed in bush 5 supports a guide member 6 attached to plunger 1, the guide member acting as a valve member co-operating with a valve seat 13. A solenoid coil 15 wound on non-magnetic former 16 when excited moves the plunger 1 against compression spring 10 so that movement of the plunger is related in a predetermined manner to the current in the solenoid coil and to the biasing force of the spring. Movement of the plunger allows fluid to flow in through inlet 41 over coil 15 and exit through outlets 18.
Patent GB-232587-A (GB)
Title: Warp-thread guide plates
IPC: D02H13/16
Filed: 1925-04-06
Abstract: 232,587. Scott, H. van W. April 21; 1924, [Convention date]. Yarns, warping and beaming. - A plate 1 through which silk or other warp threads are threaded to guide them from the creel to the warping mill is formed by casting metal or alloy into a mould in which porcelain or other eyelets 3 are held by pins. The eyelets are formed with an annular swell 3<a> which ensures that they are held securely when the metal contacts are cooling. The eyelets are of the same length as the thickness of the plate 1.
Patent GB-679680-A (GB)
Title: Improvements in or relating to alternating current bridges
Inventor: HOULDIN JOSEPH ERIC
IPC: G01R17/00
Filed: 1950-04-14
Abstract: 679,680. Impedance measuring. GENERAL ELECTRIC CO., Ltd., and THOMPSON, G. T. July 11, 1951 [April 14, 1950], No. 9243/50. Class 37. A circuit for measuring impedance comprises two T-networks, one constituted by a resistance 3, Fig. 2, inductance 4 and variable capacitance 5, and the other constituted by inductances 6, 7 and variable capacitance 8 which can be shunted by the impedance 9 to be measured. In operation, the circuit is first balanced without the shunt impedance 9 by varying condensers 5, 8 to values Cg2 and Cb2 respectively; the unknown impedance is then connected in shunt, and the circuit re-balanced by adjusting condensers 8, 5 to values Cg1, Cbl respectively. If L1, L2, L3 are the values of the inductances 4, 6, 7 respectively, and R is the value of resistance 3, then the conductance of the unknown impedance is L1 R(Cg2-Cg1)/L2L3 and the susceptance is (Cb2-Cb1). Both these expressions are independent of frequency. In practice condensers 5 and 8 have trimmers in parallel; the main condensers are pre-set and the bridge balanced with the unknown impedance in shunt by means of the trimmers; the unknown impedance is then removed, and the bridge rebalanced by varying the main condensers. The main condensers may be in conductance and susceptance. In a practical embodiment adapted for very high frequency operation, the inductances consist of short lengths of wire 41, 42, 45, Fig. 6, which with the resistance 47 are contained in a metal housing, upon which are mounted the main variable condensers 33, Fig. 3 and the trimmers 18; the condensers 33 consist of brass tubes adjustable to include more or less of plugs 30 which project from the plates 31, 32, Fig. 6; the trimmers 18 are similar. Sockets 54, 55, 49 permit connections of the co-axial type.
Patent GB-440396-A (GB)
Title: Improvements in or relating to the impregnation of felted cellulosic fibrous materials
IPC: D21H17/14
Filed: 1934-03-26
Abstract: 440,396. Impregnated paper. DU PONT DE NEMOURS & CO., E. I., Wilmington, Delaware, U.S.A. March 26, 1934, No. 9399. Void [Abridged as open to inspection under Sect. 91 of the Acts, Oct. 2, 1934]. [Classes 96 and 140] Paper, artificial leather, &c. made from fibres, e.g. of kraft, pulp, bleached or unbleached sulphite or soda pulp, rope, or mixtures thereof, which have been artificially crinkled by superficial treatment with a, solution, e.g. of caustic soda, zinc chloride, ferric chloride hexahydrate, cuprammonium calcium thiocyanate, sulphuric acid, of mercerizing activity, e.g. using caustic soda of 8-35 per cent, e.g. at 20-40‹ C., is impregnated with a drying oil, e.g. linseed oil, blown, heat bodied, or raw chinawood oil, or soya bean oil, e.g. with asphalt. The fibre, e.g. about ¥-4 millimetres mean length, may be dispersed in a disc refiner, or a Hollander with the roll raised, the caustic soda being diluted promptly after dispersion, before most of the non-alpha-cellulose is dissolved out; alternatively caustic soda may be applied to a loose pulp web. The crinkling causes increased freeness, and is accompanied by increased tensile strength and improved lustre and dyeing properties. The paper &c. is relatively porous after impregnation and may be coated using pigmented rubber and pyroxylin compositions, e.g. one containing rubber, zinc oxide, litharge, lamp black, sulphur, palm oil, and naphtha, and a sizing coat may include pyroxylin and orange shellac. The products may be vulcanized, e.g. using zinc chloride, calcium thiocyanate, caustic soda &c. Ground cork may be added to the pulp, using a wetting-agent, e.g. that known under the Registered Trade Mark " Gardinol," or turkey red oil. In an example, Kraft pulp is treated 15 seconds with 18 per cent caustic soda, diluted, and formed into a web 0À06 inches thick and impregnated with a linseed oil and naphtha composition. The products may be used, e.g. for book binding or shoe parts, or for gaskets, floor or wall coverings, electrical insulation, roofing materials, &c. The freeness of the pulp may be tested using a suspension of 5 grams of fibre per 1000 cubic centimetres in a glass tube of stated dimensions, having a wire screen at the bottom. Specification 313,085, [Class 96], is referred to.
Patent GB-254796-A (GB)
Title: Process of treating asbestos ore
IPC: C04B20/08
Filed: 1925-04-08
Abstract: 254,796. Dolbear, S. H., and Selective Treatment Co., Ltd. April 8, 1925. Asbestos is separated from its ore by reducing the latter in a liquid medium to such an extent that the asbestos fibres are separated from the rock but are not completely separated from one another, the quantity of liquid being sufficient to carry away the asbestos in suspension from the rock. The reduction is preferably effected in a ball-mill containing a subnormal number of balls. The discharge from the mill is passed first through a ¢ inch screen and then through a separator, over the discharge weir of which a suspension containing all the fibre and some sand passes, while coarser material is retained and mav be re-treated. The longer fibres are removed from the suspension by a 20-mesh screen, and the liquid is then passed to a battery of settling-cones which retain the sand while the fine asbestos fibres are recovered from the overflow by filtration. The long and the short fibres are separately dried in as compact a condition as possible, and when dry the fibres are completely separated by passage through a horizontal cylinder with heating arms. The final product is separated into grades in the usual manner.
Patent GB-909273-A (GB)
Title: Tobacco composition
IPC: A24B15/14
Filed: 1959-04-21
Abstract: The subject-matter of this Specification is substantially the same as that of Specification 909,272, but the claims are directed towards the inclusion with finely divided tobacco of ethyl hydroxyethyl cellulose and a cross-linking agent, and there are references to the use of humectants other than tetraethylene glycol, i.e. glycerine, diethylene glycol and, in a quantitative example, triethylene glycol. Reference has been directed by the Comptroller to Specification 874,135.
Patent GB-1376534-A (GB)
Title: Means for interconnecting two machine elements
IPC: F16D1/072
Filed: 1972-03-01
Abstract: 1376534 Assembling force fits SKF INDUSTRIAL TRADING & DEVELOPMENT CO NV 1 March 1972 [8 March 1971] 9577/72 Heading B3U [Also in Division F2] Elements, such as a hub 12 and shaft 11 or a bearing outer race 32 and stationary housing 33, Fig. 13, are secured together, permanently or releasably, by one or more closed or open lockrings 15 or segments which are of softer material than that of the elements and are forced axially and/or radially into parts 13 of the elements which have serrations which deform or cut complementary serrations in the lock-rings. In Fig. 1, the serrations are triangular-sectioned axial teeth with pyramidal deforming, or sharp cutting, ends, and the lock-rings 15 are forced axially therebetween by an end nut 16. In Fig. 7, not shown the lock-ring is an annular cylinder with chamfered leading edge, and in Fig. 8, not shown, is oval sectioned. In Fig. 9, not shown, the serrations on the outer element are inclined outwards to form a convergent wedge gap to receive the lock-ring. In Fig. 10, not shown, the lock-ring is in two parts, one inner part (24) being expanded radially into circumferential serrations (23) in the elements by coned engagement with an axially thrust outer part (25), itself engaging axial serrations (18) in the elements. This provices both a circumferential and an axial lock. In Fig. 12, not shown, a similar inner part (24) is expanded into a knurling formed by cross serrations in the elements. In Fig. 13, the outer race 32 of a bearing is secured in a housing 33 by a lock-ring 35 forced axially into a serrated recess, formed in the housing and race, by an end plate 36 and screws. In Fig. 14, not shown, an end abutment (37) is retained in the end of a ball-thread nut (38) by a lock-ring (39) arranged as in Fig. 13, but without the removable pressure applying endplate. In Fig. 15, not shown, two diametrically opposite arcuate lock segments (40), between serrated elements (41, 42), are adapted to rupture at a predetermined torque, which can be increased by using more than two segments.
Patent GB-1372442-A (GB)
Title: Device for effecting a frictional mounting of one part coaxially on another part
IPC: F16D1/097
Filed: 1972-03-01
Abstract: 1372442 Assembling force fits SKF INDUSTRIAL TRADING & DEVELOPMENT CO 1 March 1972 [3 March 1971] 9578/72 Heading B3U [Also in Division F2] Parts, such as a shaft 1 and member 2, having mating frusto-conical surfaces, are connected together by supplying pressure fluid to expand a chamber 3, formed at one end of one of, 2, the members, and enclosing a slidable piston 4, secured, as by a screw-thread, to the other member 1, such supply being effected through a channel 10 direct, e.g. at a groove 12, to the coned surfaces at a point axially spaced from the chamber 3, so that the coned surfaces are separated by the fluid pressure to permit its access to the chamber 3 for expanding the latter. The piston 4 has a seal disc 6, and the chamber 3 has a plugged drain passage 11. In Fig. 2, not shown, the.piston (12) is screwed to the outer part 2, whilst in Figs. 3 and 4, not shown, the inner part 15 an externally coned sleeve seated on the butting ends of aligned shafts (23, 24) for coupling the shafts.
Patent GB-1046547-A (GB)
Title: Electromagnetic relays
IPC: H01H50/64
Filed: 1964-03-06
Abstract: 1,046,547. Electromagnetic relays; electrically tripped switches. J. JUCKER. March 6, 1964 [March 8, 1963], No. 9597/64. Heading H2B. The pivoted armature 4 of a relay actuates a plurality of contact sets in the form of microswitches 12 through two co-operating levers 6, 9. Lever 6 is pivoted to a frame 7 about an axis parallel to the pivotal axis of armature 4 and lever 9 is pivoted about an axis perpendicular to the armature axis. On energization of coil 2 lever 6 is raised by pegs 5 carried by the armature and lifts lever 9 so that the pushbuttons 13 of the microswitches are depressed. The lever 9 may be latched in the raised position and released only on re-energization. A lostmotion link may be provided between the armature 4 and lever 6. Two parallel rows of microswitches with a lever 9 for each row operated by a single lever 6 may be provided. Instead of bearing directly on the push-buttons 13 the lever 9 may carry a pawl which drives a ratchet-wheel (Figs. 3 and 4, not shown). On the same shaft as the ratchet-wheel is a drum provided with a plurality of longitudinal keyways in which cam members may be selectively placed to operate the microswitches in a determined order. The relay may be used as a counter. The relay may be mounted in a transparent case and be provided with plug-in pins.
Patent GB-104812-A (GB)
Title: Improvements in or relating to Advertising and the like Devices.
Inventor: EVENS THOMAS NELSON
IPC: G09F7/10
Filed: 1916-07-08
Abstract: 104,812. Evens, T. N. July 8, 1916. Loose-letter and like signs.-In a sign of the kind in which removable letters &c. are provided with projections to fit in grooves in a base, means are provided to secure the correct spacing of the letters. Figs. 1 and 2 show one arrangement. The base is formed of wood strips a secured to a backing to leave narrow slots band enlargements c. The letter f, Fig. 2, is provided with a narrow projecting piece g and a bar h longer than the letter is wide and adapted when the letters are in position to give the desired spacing. The base may be formed of strips of board or card as shown in Fig. 5, and the projections on the letters suitably shaped. The bar h may, in some constructions, be replaced by a spring l, Fig. 8. Spacing-pieces', as shown in Fig. 11, without letters may be employed where required.
Patent GB-1071491-A (GB)
Title: Improvements in or relating to frequency meters
Inventor: WOOD PETER
IPC: H03M1/00
Filed: 1963-03-12
Abstract: 1,071,491. Selective signalling. PLESSEY-UK Ltd. March 4, 1964 [March 12, 1963], No. 9718/63. Heading G4H. In a frequency measuring system the unknown frequency is compared with a known frequency formed by selectively adding various reference frequencies, and the known frequency is progressively modified in accordance with the result of the comparison until equality is attained, the particular selection of reference frequencies necessary to achieve this being a measure of the unknown frequency. As described, pulses from a 16 kc/s. oscillator 7 Fig. 1, are successively divided by bi-stable circuits C-H to give reference frequencies of 8 kc/s., 2 kc/s. &c. These reference frequencies are selectively combined, in accordance with the contents of a counter 1 to 6 to produce a known frequency K. The input frequency is compared with the known frequency by logic circuit 15 to 24 and any difference steps the counter 1 to 6 forwards or backwards until equality is attained.
Patent GB-369414-A (GB)
Title: Improvements in or relating to reproducing the surface markings of wood and other material
IPC: B41M3/06
Filed: 1931-03-31
Abstract: 369,414. Photo-mechanical printing- plates. TENNANT, W..J., 111, Hatton Garden, London.-(Oxford Varnish Corporation ; Empire Building, Detroit, Michigan, U.S.A.) March 31, 1931, No. 9777. Drawings to Specification. [Class 98 (ii).] In a process for imitating the graining of wood or other natural material on a hard surface such as metal, of the kind in which the design is applied over a ground colour by means of photographically-produced and etched printing-plates as described in Specification 169,515, [Class 98 (ii), Photographic processes &c.], one of the printing-plates carries a reproduction of part only of the grain pattern, while another carries a reproduction of the whole of the pattern. The part reproduction shows the part of the original not containing the darker grain pattern and in which occur " undertonings " in a colour between those of the ground and of the darker grain. The plate may be prepared by tracing on to a transparent sheet such as celluloid the general pattern of the darker grain areas of the original particularly where the " undertonings " appear to show outside the darker grain lines, a rough equivalent of a photographic positive being thus produced. This is printed on to a carbon resist and the design on the resist is broken up by subsequent exposure through a Rembrandt screen. The resist is then employed to etch a plate or roll slightly. Alternatively, the original can be photographed, preferably with a brief exposure and if desired blocking out the parts where the " undertoning " is not apparent, a positive produced from the photograph and a carbon resist produced therefrom. The colour applied by the " undertoning plate is such as will blend with the ground colour to produce a correct result, the ground colour being lighter than that normally employed. If more than one colour occurs in the " undertoning " the predominant one is applied by printing and the others are worked in by hand, or a printing-plate may be prepared for each colour. The reproductions on the " undertoning" and full grain plates are preferably arranged to print out of register, for example by taking one of the photographs out of focus. The " undertonings " are preferably applied direct to the ground colour, but if desired the full grain reproduction may be applied first.
Patent GB-270226-A (GB)
Title: Improvements in internal combustion engines
IPC: F01P3/10
Filed: 1926-01-25
Abstract: 270,226. Shannon, D. M. Jan. 25, 1926. Pistons; attaching to rod; cooling. - A piston for an internal - combustion engine comprises two parts E, E<1> having facings engaging radial surfaces on collars on the piston-rod. The part E<1> is recessed to receive the corresponding collar, while the end of the piston rod enters the part E, the joint in each case being made by packing-rings e<12>. The parts may be separately bolted to flanges e<6>, e<7> on the pistonrod, or may be drawn together by means of right and Left-hand studs, or by means of cap nuts e<10>, engaging the heads of studs in one piston part and screwing on to the heads of studs in the other part. In a modification the piston parts are clamped to a single collar on the piston-rod by studs passing through a flange on one piston part and screwing into the other part. The space between the piston parts is enclosed by a sleeve e<13>, which may be split and sprung into position, or may bo in two parts grooved to receive retaining split rings e<14>. The edges of the sleeve may make bevelled joints with the piston parts. Cooling fluid admitted by a pipe 1 in the piston-rod passes from the upper piston part to the annular space i<1> and flows to and from the lower piston part by passages i<2>, i<3> and slots in a partition i<4>. Specification 270,225, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of], is referred to.
Patent GB-1091491-A (GB)
Title: Improvements in or relating to adhesive connecting devices
IPC: A61B17/08
Filed: 1965-03-08
Abstract: 1,091,491. Extensible connecting device. R. NEYMAN and A. ASSED. March 8, 1965 [Oct. 15, 1964], No. 9818/65. Heading A5R. An adhesive connecting or fastening device, particularly suitable for securing surgical dressings, comprises two thin portions of tape 1 and 2, coated on one side with adhesive material and interconnected by a flexible and extensible element 3. The tape is suitably of cellulosic or plastic material, and the flexible element may be a rubber ring.
Patent GB-309586-A (GB)
Title: Aluminium alloys
IPC: C22C21/12
Filed: 1929-03-27
Abstract: 309,586. Reuleaux, O. April 13, 1928. [Convention date]. Annealing.-Aluminium-copper alloys containing also titanium, zirconium, or boron are heated for a number of hours at about 510‹-520‹ C., cooled. and subsequently aged either naturally or at 100‹-150‹ C.
Patent GB-768209-A (GB)
Title: Control of bogging in fluidized coking of heavy hydrocarbon oils
IPC: C10B55/10
Filed: 1955-04-05
Abstract: 768,209. Coking heavy oils. ESSO RESEARCH & ENGINEERING CO. April 5, 1955 [May 11, 1954], No. 9913/55. Class 55 (1). In a process for coking a heavy hydrocarbon oil, the oil is introduced through a line 2 into a fluidized bed of coke particles at coking temperature (850-1200‹ F.) and the pressure differential between at least two points at different elevations in the fluidized bed, the liquid concentration on the coke being restricted when the pressure differential decreases from 3-50 per cent from a predetermined normal level to prevent bogging in the bed. The liquid concentration on the coke particles is reduced by raising the coking. temperature and/or by restricting the feed rate of heavy oil to the bed. As shown, the pressure differential is registered by meters 12 and 15 arranged between lines 10 and 11 and 13 and 14 respectively. Pressure differential readings for normal operation of the bed were found to be 25" w.g. at 12 and 24" w.g. at 15. Subsequent readings fell to 15" w.g. and 14" w.g. respectively and the liquid concentration on the coke particles was reduced until the readings returned to their normal level. The feed rate of heavy oil to the fluidized bed is in the range of 0.06-30 w/w. solids 1 hour. Pro. duct vapours are withdrawn through line 4 and coke through line 8. A fluidizing and stripping medium, e.g. steam, is introduced at 3. Coke is fed into the fluidized bed at coking temperature from a separate heater (not shown) through line 9. The solids forming the fluidized bed have an average particle size ranging between 100 and 1000 microns in diameter, preferably between 150 and 400 microns. In addition to coke particles, particles of sand, glass beads, metal shot and catalytically inert particles may be employed. Pressures range from 1-10 atmospheres.