baber/WOPTO huggingface dataset:
Patent GB-888696-A (GB)
Title: Improvements in methods of and apparatus for the liquid digestion of solids
IPC: B01F3/12
Filed: 1957-03-19
Abstract: <PICT:0888696/III/1> Solids are treated with liquids as a slurry which is pumped through a series of pressurized vessels, the first vessel of the series being fed continuously with the slurry whilst an inert gaseous atmosphere is maintained above the level of the slurry and the succeeding vessels being substantially filled with the slurry.  As shown, bauxite is treated with an alkaline solution by first grinding the mineral in the mill 13 with a small quantity of sodium hydroxide solution introduced from the tank 14 through pipe 17 and when ground to a small size, preferably about 500 microns, is mixed with further sodium hydroxide in a tank 16 to form a slurry. The slurry is passed by the pump 18 through tanks 21 and 25 in which its temperature is raised to 97 DEG C. by steam coils and is then passed, by a diaphragm pump 28, through the series of autoclaves 33, 44 to 49 and 51 which are fitted with agitators and heated by steam coils to progressively higher temperatures the maximum being 230 DEG C. in autoclave 51.  An inert gaseous atmosphere is maintained in the first autoclave 33 at a predetermined pressure by the valve 43 in line 42, and a slurry level indicator 103 operates a valve 76 which controls the flow of slurry from the autoclaves to the blow-off tanks 77 to 81 and 82 to 84, in which the temperature and pressure of the slurry is reduced to normal, steam evolved being recirculated to the heating coils of the autoclaves 33 and 44 to 47, and the solid residue being separated from the liquid after dilution in tank 86. Fresh steam is introduced into the heating coils of the last three autoclaves 48, 49 and 51 and controlled by a thermostat 105 and valve 107, and a series of connected condensate wells 91 to 99 and 101 are connected to the lower ends of the steam coils in the heating tanks and autoclaves, the steam from the wells being recirculated to the heating coils.
Patent GB-1142282-A (GB)
Title: Apparatus for separating tobacco from articles such as cigarette filters, cigarette wrappers and the like
IPC: A24C5/36
Filed: 1967-02-21
Abstract: 1,142,282. Reclaiming tobacco and filters. R. J. REYNOLDS TOBACCO CO. 21 Feb., 1967 [23 Feb., 1966; 13 Feb., 1967], No. 8305/67. Heading A2C. Apparatus for separating tobacco from articles such as cigarette filters, cigarette wrappers and the like, comprises a vertically disposed container through which the articles are gravity fed, a plurality of sets of fixed vanes and sets of rotatable vanes disposed within said container, the sets of fixed and rotatable vanes being alternately positioned in vertically spaced relation and spaced sufficiently apart to prevent articles being caught in a scissors action, the vanes being shaped to avoid bursting of a cigarette filter or tearing of a cigarette wrapper and the like, and drive means adapted to rotate the rotatable vanes at a speed in the range of from 500 to 860 revolutions per minute so that the tearing of a cigarette wrapper and the like or the bursting of a filter is avoided. In one embodiment, an impact apparatus for striking reclaimed cigarette filters to remove tobacco fragments therefrom, Fig. 1, comprises a container 14 through which the filters 10 are passed, a plurality of vanes 22a fixed with respect to the container 14, a plurality of rotatable vanes 24a for striking the filters 10 as they pass through the container 14 and causing them to impinge against the inner surface of the container 14. In another embodiment, suitable for reclaiming tobacco from within a paper cigarette wrapper Fig. 5, the vanes 50, 52 are rod shaped to avoid any cutting action and the rotating vanes 50 are mounted on a hollow shaft assembly 34 of decreasing diameter from top to bottom so as to decrease the striking volume and hence increase the striking action for succeedingly lower positions in the apparatus. In addition a larger number of vanes 50, 52 are used at each level in lower portions 34c of the assembly 34 than in intermediate portion 34b, and the fewest number in upper portion 34a. The hollow shaft 34 may be used for dust extraction, a fan 60 being sited above it. In further embodiments there are also described rotating vanes of fan blade shape or rod shaped with fan blade members attached, frustro conical shaped containers, a frustro conical vane supporting shaft, vanes bent at right angles so as to have portions that extend substantially parallel to the shaft and the container, a container with an helical ridge on its inside surface, a single container housing three adjacent impact devices, and the use of the impact devices to feed conventional vibrating screen devices.
Patent GB-540751-A (GB)
Title: Improvements in and relating to socks
IPC: A41B11/12
Filed: 1940-05-09
Abstract: 540,751. Socks. BLOUNT, F. May 9, 1940, No. 8329. [Class 141] A sock is provided with an elastic top band 10 knitted in two halves to the lower edges of which and substantially to the whole of such edges, are connected two suspension bands 13, which are in turn connected to the top edge, and substantially the whole of the top edge, of the leg of the sock 12.
Patent GB-1328469-A (GB)
Title: Centring device for a rotary shaft
IPC: D01H7/10
Filed: 1972-02-23
Abstract: 1328469 Bearings; resilient mountings ALFALAVALAB 23 Feb 1972 [15 March 1971]  8404/72 Headings F2A and F2S A centring device for a rotary shaft 10 supported in a bearing housing 11 comprises a resiliently deformable diaphragm 13 which is rigid in its own plane and which has a central aperture through which the shaft passes, the inner edge 14 of the diaphragm co-operating with a stationary part 15 of the assembly in such a manner as to be axially slidable therealong but to prevent rotation about a transverse axis of the diaphragm, and the outer edge 16 being rigidly connected to the bearing housing 11 and mounted between the housing and the stationary part by resilient means 17. The rings 17, 18 are of rubber. The diaphragm is of steel or fibre-reinforced plastics. The connections of the inner and outer edges of the diaphragm may be reversed.
Patent GB-714294-A (GB)
Title: Improvements in or relating to food mixers
Inventor: NUTBROWN THOMAS MANBY
IPC: A47J43/10
Filed: 1952-04-03
Abstract: 714,294. Mixing appliances. NUTBROWN, Ltd., T. M. May 11, 1953 [April 3, 1952], No. 8496/52. Class 86 In a manually operated food mixer, beater spindles 36, 38, Fig. 1, are supported from a stand 12 by a bearing unit 30 which comprises complementary separable portions 31, 41, Figs. 2 and 3, formed with bearings 35, 42, and 37, 43, the portions 31, 41 being releasably secured together by a quick release clip 47 whereby one or both beaters may be removed from or fitted to the machine. The beater spindles 36, 38 carry gear wheels at their upper ends which are driven by a crown wheel 28 which engages the gear wheel on the first spindle 36. The crown wheel is attached to a cranked spindle 27 journalled in spaced upper ends 17, 18 of the stand 12, of which spaced vertical members 15, 16 are slidably clamped between side plates 21, 22 of a table clamp 23, permitting vertical adjustment of the stand. A cover 56, attached to the clip 47, encloses the gear wheels at the upper ends of the beater spindles. In a modification Figs. 4 and 5 (not shown) the clip 47 serves also to locate the portions 31, 41 in correct relative position at their ends. According to the Provisional Specification the bearing unit may be suspended from the driving wheel spindle so that the beaters are swingable to one side to allow a bowl to be moved into or out of position.
Patent GB-741928-A (GB)
Title: Improvements in electrically controlled brakes
IPC: F16D59/02
Filed: 1949-05-19
Abstract: 741,928. Electromagnets. LE TOURNEAU, Inc., R. G. May 19, 1949 [June 15, 1948], No. 8519/52. Divided out of 741,921, [Group XXXIV]. Addition to 616,821. Class 35. In an electromagnetically-released multiple disc brake of the kind claimed in the parent Specification the fixed and movable armatures 20, 21 respectively have identical laminated poles 20, 21 projecting normally from their bases. The armature poles comprise bands 23 wound concentrically and spirally and reinforced by rings 24, 25. The bands and rings of the fixed armature are welded to a wall 1 of a motor casing 2, while those of the other armature are welded to a floating brake disc 17. The bands 23 are then machined so as to cut slots 26 leaving poles 20, 21 in the fixed and moving- armature respectively with bridge cores 20A, Fig. 1 (not shown) and 21A. The poles are surrounded by energizing coils 22. Specification 741,927 also is referred to.
Patent GB-919106-A (GB)
Title: Improvements in and relating to gramophone pickups
Inventor: WALTON JEAN
IPC: H04R17/06
Filed: 1958-03-17
Abstract: 919,106. Gramophone pick-ups. COSMOCORD Ltd. June 17, 1959 [March 17, 1958], No. 8533/59. Class 40 (2). [Also in Group XXXIX] The casing, Fig. 2, supporting a bimorph piezo-electric transducer 18 is moulded integrally with an arm 20 carrying or integrally moulded with styli 21, 22. A bifurcate member is bent clockwise about the neck 15 so that the sides 14 cover the windows in the body member 13 and is held by the engagement of members 27, 28. Rivets 23, 24 serve as pivots about which the assembly may be rocked in a mount 31, secured to a tone-arm, to engage an appropriate stylus with a record and, together with hollow rivets 33, tags 35 and foils 25, provide electrical connection to the transducer 18.
Patent GB-1433068-A (GB)
Title: Digit display apparatus
IPC: G09F9/307
Filed: 1974-02-26
Abstract: 1433068 Alpha numeric displays TAMURA ELECTRIC WORKS Ltd 26 Feb 1974 [14 March 1973 (2)] 8556/74 Heading G5C Each elongated element of a digital display device contains a light source 19 and includes a transparent display portion 12 with grid lines 16 formed on the surface nearest the source to provide uniform brightness. The elements are arranged in a number of figure of eight arrays with a common front plate which is masked by material 15 to define the portions 12. The lines may comprise a diffraction grating.
Patent GB-549933-A (GB)
Title: Process for the manufacture of í¸-phytadienic acid
IPC: C07C51/377
Filed: 1941-07-09
Abstract: 549,933. Phytadienic acid. HOFFMANNLA ROCHE & CO., AKT.-GES., F. July 9, 1941, No. 8636. Convention date, July 11, 1940. [Class 2 (iii)] The ketone (CH 3 ) 2 CH(CH 2 ) 3  (CH(CH 3 )CH 2 ) 3  C(CH  3 ) = CH(CH  2 )  2 COCH  3  is converted by treatment with a halogen - acetic ester and zinc - copper couple to the acid (CH 3 ). CH(CH 2 ) 3  CH(CH 3 ) (CH 2 ) 3  C(CH 3 ) = CH(CH 2 ) 2  C(CH 3 ) (OH)CH 2 COOR which is then treated to replace the hydroxy group by halogen, and finally hydrohalogen acid is split off by alcoholic potash. In an example the initial ketone is heated with bromacetic ester and zinc-copper couple in presence of toluene, the ester is reacted with phosphorus tribromide in petroleum ether, hydrobromic acid being split off by means of alcoholic potash. The product has properties similar to those of vitamin F.
Patent GB-767673-A (GB)
Title: ªÏ-monochloro-isopropyl n-(3-chlorophenyl)-carbamate and herbicidal preparations containing it
IPC: C07C271/06
Filed: 1955-03-24
Abstract: The invention comprises the selective herbicidal compound, o -monochloroisopropyl N-(3-chlorophenyl)-carbamate.  An example describes the preparation of this compound by the reaction of 3-chlorophenyl isocyanate with 1-chloropropanol-(2) in benzene in the presence of triethylamine.  Herbicidal compositions of the product are described (see Group VI).ALSO:A selective herbicidal preparation comprises o  - monochloro - isopropyl N - (3 - chlorophenyl) - carbamate in admixture with a liquid or solid carrier.  The compound may be employed in solution in such solvents as cyclohexanone, xylene, toluene, acetone, aliphatic alcohols or methyl - naphthalenes, or as an aqueous emulsion using an emulsifying agent. A dusting powder can be prepared by impregnating clay, talc or other solid carrier with a solution in acetone of the carbamate and an emulsifying agent.  After evaporation of the acetone the product may be diluted with more of the carrier or formed into a suspension in water or other liquid carrier.
Patent GB-577092-A (GB)
Title: Improvements in electric cut-out or protective apparatus suitable for polyphase circuits
IPC: H02H3/34
Filed: 1944-05-08
Abstract: 577,092. Protective cut-out arrangements. GOLDS, L. B. S., EDMUNDONS ELEC - TRICITY CORPORATION, Ltd., and P. & B. ENGINEERING CO., Ltd. May 8, 1944, No. 8688. [Class 38 (v)] In a polyphase electric protective apparatus, separate temperature-compensated bi-metallic elements heated by the respective phases operate angularly-movable contact arms arranged to open or close a control circuit when the load on one phase differs considerably from that on another phase or exceeds the predetermined overload value. Transformers 33 energised by the respective phases, and having tappings 22 to enable them to be matched at normal load, have cores which saturate at or somewhat above normal overload to prevent premature operation on heavy starting conditions. The heaters 11, comprising a resistance metal stamping enclosed between mica discs and supplied from transformers 33, are supported on spiders 23 and shielded from adjacent units by screens 25. The bi-metallic elements are co-axially mounted on posts 15 carried by cross-rails 16 on insulating supports 21, and comprise spiral coils 12, 13, which have their outer ends linked by bridles 14. The inner ends of coils 12 are fixed to posts 15 and the inner ends of coils 13 carry contact arms 17. The centre contact 17 comprises an elongated member 35 having at each end adjustable spaced contact-members 36 between which are disposed the outer contacts 17, without, however, making contact normally. Relative movement between either of the outer contacts and the centre contact will close a circuit and produce the cutting-out action. Coils 13 are shielded from the heaters by screens 20 and compensate for air-temperature changes. The running load is indicated on scale 40 by an extension 39 of the centre contact. An adjustable lever 43 carrying a fixed contact 42 allows for overload protection according to the setting of a scale 48 and indicator 49 which is set together with lever 43 by a knob 44. On balanced overload, contact 42 is engaged by a moving contact 41 on the centre contact 17. Specification 370,543, [Group XXXVI], is referred to.
Patent GB-1536716-A (GB)
Title: Gas-cushion vehicle
IPC: B60V1/16
Filed: 1976-03-04
Abstract: 1536716 Air cushion vehicles B F GOODRICH CO 4 March 1976 [19 March 1975] 8735/76 Heading B7K An air-cushion vehicle having rigid sidewalls 5 has a forward skirt arrangement comprising a bag skirt 16 secured to and reinforced by a plurality of spaced cables 15 or flexible bands (Fig. 6, not shown) secured at their ends to the body 4 of the vehicle, the bag forming a plenum chamber 17 inflated with air supplied through a duct 40 from a fan, not shown. Contiguous U-section fingers 18 are attached to the lower part of the bag 16 and are inflated by air from the plenum chamber 17 through orifices 20. The rear skirt is similarly constructed with the addition of sealing panels connecting the lower edges of the sidewalls of the U-section fingers to prevent water scooping. Reference has been directecl by the Comptroller to Specification 1,082,851.
Patent GB-392716-A (GB)
Title: Improvements in or relating to sound recording apparatus
IPC: G11B7/00
Filed: 1932-03-24
Abstract: 392,716. Sound-recording devices. RADIO CORPORATION OF AMERICA, 570, Lexington Avenue, New York, U.S.A.- (Assignees of Kellogg, E. W:; 2, East Oak Avenue, Moorestown, New Jersey, U.S.A.) March 24,1932, No. 8825. Convention date, May 26, 1931. [Class 40 (iv).] Optical sound-recording apparatus includes a shutter motor of the magnetic armature, variable-area air gap type, adapted two, vibrate a shutter in accordance with the volume of the sound, the motor being operated by currents which are proportional to the sound volume. The motor comprises a mounting 31, Fig. 3, for a permanent magnet 32 with polepieces 33, 34, which have pole projections 33a, 33b and 34a, 34b, Fig. 4, respectively. Coils 35 .. 38 are wound round the pole projections so that, according to whether the current impulses in the coils are increasing or decreasing, the magnetism of the poles 33a, 34a is strength. ened and that of the poles 33b, 34b weakened, or vice versa. Secured to the mounting 31 are the ends of a leaf spring 48 which supports the armature. The armature comprises a pair of bars 50 of magnetic material secured to a tongue 52 of light non-magnetic material, such as that known under the registered Trade Mark "Duralumin." At one end, the tongue 52 is offset to receive a sleeve 55 which terminates in the shutter 23. To minimize the tendency to free oscillations of the shutter system, the spools on which the coils 35 .. 38 are wound are constructed of low resistance material such as copper.
Patent GB-178690-A (GB)
Title: Improvements in roof leader connections
IPC: E04D13/04
Filed: 1921-03-23
Abstract: 178,690. Goldman, B. March 23, 1921. Metal pipes. - A leader connection for roofs comprises a plate 9 having an opening 11 arranged in relation to an opening 6 in the roof 5, a discharge conduit 14 connected to the plate by a pliable corrugated pipe 13, and a tapered duct 18 secured adjacent to the opening in the plate and spaced from the discharge conduit to form a compartment closed at the top by the body of the plate for circulating warm air which flows up through the conduit from the sewer.
Patent GB-890129-A (GB)
Title: Improvements in or relating to implements for the lateral displacement of crop lyingon the ground
IPC: A01D78/00
Filed: 1959-03-16
Abstract: The subject-matter of this Specification is included in that of Specification 890,126 but the claims differ.  Specification 890,128 also is referred to.
Patent GB-1212253-A (GB)
Title: Improvements in or relating to fluid-tight containers and their production
IPC: B65D35/00
Filed: 1968-02-23
Abstract: 1,212,253. Seaming. HOFFMANN A.G. GEB. 23 Feb., 1968 [24 Feb., 1967], No. 9024/68. Heading B5K. [Also in Divisions B2 and B8] A method for the production of fluid tight containers having plastics coated walls comprises the steps of coating an impervious, strip-shaped carrier on one or both sides with heat-sealable plastics, forming the coated carrier foil to the shape of the container body, heat sealing adjacent edges of the coated carrier foil forming the body and sheathing the heat-sealed container body. The carrier film may be coated on both surfaces and the plastics on one surface may have different properties from that on the other. The foil may be bent to the form of a cylindrical tube or may be wound helically. A barrier layer sheet, for example a plastics sheet, may be applied as a composite material to the surface which will form the interior of the finished container. The carrier foil may be of metal foil, such as of aluminium or lead, or a paper foil. It may also be composed of one or more layers such as a layer of paper laminated with a metal, such as aluminium. Suitable coating materials are polyolefines, polyvinylchloride and polyvinylidene chloride. The carrier material may be impervious to light or it may be slightly transparent in order to provide a translucent container. The material may also be chosen so as to provide a finished container that is flexible or rigid.
Patent GB-124638-A (GB)
Title: Improvements in or relating to Decolourising and the Preparation thereof.
Inventor: WADE HAROLD
IPC: C01B31/12
Filed: 1918-05-31
Abstract: 124,638. Wade, H., (China Sugar Refining Co., Shaw, G. M., and McTavish, H. M.). May 31, 1918. Carbon.-Decolorizing-carbon is prepared by impregnating carbonaceous material, preferably of vegetable origin, such as sawdust, wood chips, &c., with milk of lime, carbonizing at about 1000‹ C., washing with acid and water, and drying.
Patent GB-199815-A (GB)
Title: Improved folding box or carton
IPC: B65D5/30
Filed: 1922-03-29
Abstract: 199,815. Hunt, R. March 29, 1922. Folding-boxes made from special blanks.-A folding box or carton made from a single blank of the kind in which the four walls 2, 3 fold upwards from a central piece 1 constituting the bottom, the walls being connected by tongues and slots in such a way that the walls while remaining flat can fold down on or be raised from the bottom without disengaging the tongues and slots, has the portion of the blank outside each tongue 10 cut away, leaving the tongue standing out from the edge of the blank when laid flat, its base being at substantially 45‹ to the directions of the lines on which the walls fold. Strings z for erecting and carrying are provided and pass through notches 7 in the lid when a lid is provided. The blank may also be made in the form shown in Fig. 5.
Patent GB-939287-A (GB)
Title: New morphinone and codeinone derivatives and process for preparing the same
IPC: C03B19/00
Filed: 1962-03-09
Abstract: The invention comprises codeinone and morphinone derivatives, which are morphine antagonists, of the general formula:- <FORM:0939287/IV(a)/1> wherein R is hydrogen or methyl and R1 is allyl or propargyl; and a process for preparing these compounds by reacting a compound of the general formula:- <FORM:0939287/IV(a)/2> with a compound of formula R1X, where X is halogen, in the presence of a dehydrohalogenating agent.  In the detailed examples the hydrochlorides of the products are isolated.  The compounds of formula (II) are prepared by oxidising the baine to 14-hydroxycodeinone; hydrogenating this to produce 14-hydroxydihydrocodeinone; acetylating to form 14-acetoxydihydrocodeinone; reacting this with cyanogen bromide to give N-cyano-14-acetoxydihydronorcodeinone; reacting this with acid to yield 14-hydroxydihydronorcodeinone; and, if required, heating this in the presence of pyridine hydrochloride to yield 14-hydroxydihydronormorphinone.
Patent GB-1255144-A (GB)
Title: Improvements in or relating to petrol injection apparatus for internal combustion engines
Inventor: BRADBURY CYRIL HENRY
IPC: F02M27/08
Filed: 1968-02-26
Abstract: 1,255,144. Spray carburetters. SIMMS GROUP RESEARCH AND DEVELOPMENT Ltd. May 23, 1969 [Feb. 26, 1968], No. 9144/68. Heading F1B. Petrol is directed on to an ultrasonic atomizer 13 from a nozzle 16 spaced from the atomizer and supplied with petrol at substantially constant pressure. Petrol drawn by a pump 20 through a check-valve 19 from a tank 18 is delivered to the nozzle 16 through a control valve 21 and a pressure reducing and check-valve 17 which provides the substantially constant pressure. The valve 21 is operable through a linkage 22 and 23 by a frustoconical cam 24 movable axially by an accelerator pedal linkage 28 and angularly by a centrifugal governor 25. The valve 21 may be operated manually for starting and excess fuel may be supplied through a solenoid operated valve 37 directly to the manifold 12. The cam 24 may be moved axially in response to the vacuum in the manifold 12. Separate ultrasonic atomizers, connected in parallel with a single power source, may be provided for each of the cylinders of an engine.
Patent GB-198846-A (GB)
Title: Improvements in engines and transmission gear for motor vehicles
IPC: F02B75/22
Filed: 1922-03-30
Abstract: 198,846. North, O. D. March 30, 1922. Motor cars.-An engine for a motor vehicle has two or more radial, horizontal cylinders 4, a vertical crank shaft 5, and is carried on a gear casing 10 arranged beneath the crank case 9. The gear casing contains the clutch 21, change-speed gear 24, 25 driving a worm-wheel 30 on the differential box by the worm 31. The differential gear drives on to a shaft 28, connected by universaljoints to shafts on the front or rear wheels of the vehicle. The Provisional Specification also describes modified change-speed gear comprising epicyclic. and bevel gearing.