baber/WOPTO huggingface dataset:
Patent GB-672450-A (GB)
Title: Filter assembly particularly for coffee-maker vessels and the like
Inventor: JEPSON IVAR
IPC: A47J31/043
Filed: 1950-05-16
Abstract: 672,450. Making filters. SUNBEAM CORPORATION. May 16, 1950, No. 12198/50 Class 83 (ii). [Also in Groups I and VI] A filter, for example, for forcibly seating in a coffeemaker vessel (see Group I), includes a metallic screen having a member engaging its edges to hold it taut. An annular piece of metal such as aluminium is provided by dies with flanges 28 and 29 connected by an annular portion 27, Fig. 6. A screen 19, Fig. 9, is inserted in the top and the assembly placed in dies to partially bend the upper flange inwards. The flange 29 is then brought by a further series of dies into gripping engagement with the marginal edges of the screen, and the parts 27, 29 with the screen between them are rolled to increase the outside diameter and thus stretch the screen. Finally the lower flange 28 is brought to the configuration of Fig. 9 by forming dies.
Patent GB-353028-A (GB)
Title: Improvements in the treatment of cellulosic materials
IPC: C13K1/02
Filed: 1930-04-17
Abstract: Wood and other cellulose materials are saccharified by treatment with an organic acid anhydride and hydrolysing the product, one or more stages of the treatment being so conducted as to degrade the cellulosic material to sugars.  Acetic anhydride, butyric anhydride or propionic anhydride may be used and the esterification may be carried out in the presence of sulphuric acid, phosphoric acid, or other mineral acid reagent and the temperature may be 60-90 DEG  C. The anhydride may be mixed with acetic acid or benzene, the acetic acid being recovered by extraction with benzene, toluene, petroleum ether, ether, or chlorohydrocarbons or the reaction is carried out in the presence of a solvent for acetic acid so that the cellulose acetate or degraded cellulose acetate is produced in suspension.  The hydrolysis may be effected by steam.  The cellulose may be purified with an alkaline agent to remove pentosan and then treated with a mineral and/or organic acid such as acetic and sulphuric acid.  In one example, cellulose is treated with a dilute alkali then with acetic and sulphuric acid, acetic anhydride is added and the mixture heated with steam.  The steam is continued until the product is completely water soluble, after which the sulphuric acid is neutralized by suitable addition of lime.  In another example a mixture of acetic, sulphuric, and phosphoric acids is used.  The acetylation and the hydrolysis of the product may then be conducted as described in the other example.  Specifications 249,173, 263,938, 264,937, 312,098, and 326,515, [all in Class 2 (ii), Cellulose &c.], are referred to.
Patent GB-1355636-A (GB)
Title: Disinfectant
IPC: A01N47/44
Filed: 1973-03-14
Abstract: 1355636 Disinfectants and medicaments containing chlorohexidine lactate or gluconate W HURKA 14 March 1973 [31 July 1972] 12305/73 Headings A5B and A5E [Also in Division C2] A disinfectant having good skin compatibility and suitable therefore as a medicament, contains as effective substances, in aqueous solution, chlorohexidine lactate or gluconate and the lactate or gluconate of a quaternary ammonium base. The gluconate of a quaternary ammonium base may be dodecyldimethyldichlorobenzylammonium gluconate, dodecyldimethylbenzylammonium gluconate, tetradecyldimethylbenzylammonium gluconate, dodecyldimethylethylbenzylammonium gluconate or hexadecyltrimethylammonium gluconate, and the lactate of a quaternary ammonium base may be dodecyldimethyldichlorobenzylammonium lactate, dodecyldimethylbenzylammonium lactate, tetradecyldimethylbenzylammonium lactate, dodecyldimethylethylbenzylammonium lactate or hexadecyltrimethylammonium lactate.
Patent GB-313705-A (GB)
Title: Improvements in or relating to chairs, stools, seats and the like
IPC: A47C3/24
Filed: 1928-04-27
Abstract: 313,705. Headley. F. H. April 27, 1928. Revolving seats; adjustments. - A rotatable and vertically adjustable chair consisting of a shank c depending from the seat and carrying a cylindrical. thrust bearing member c located in a recess b<1> in a junction member b to which splayed tubular legs a are secured by fastening pins a<1>. In the construction shown, the shank c is screw threaded and the bearing member e rests upon a washer f having a projection which engages a longitudinal slot c' in the shank. A key g engages a circumferential groove in the member e to prevent its separation from the recess while allowing of its rotation therein. Rotation of the member e by a handle e<2> causes the shank to be displaced axially to raise or lower the seat during which adjustment the washer f is frictionally held to prevent rotation of the shank c. The seat may be rotated by hand, the shank, member e and washer f rotating in unison in the junction member b. In a modification, the shank is plain and the bearing member e consists of a split ring or clip which can be tightened on the shank. The rings may be reversed so as to be to either rotatably or non-rotatably held in the recess b<1>. In a further modification, the shank is screw threaded and the bearing member e in the form of a split ring or clip. Specification 215,137 and 222,735 are referred to.
Patent GB-200626-A (GB)
Title: Improvements in and relating to devices serving to get quickly master of evil-doers
IPC: E05B75/00
Filed: 1922-05-02
Abstract: 200,626. Fischbach, E. E. May 2, 1922. Straps and bands.-The arms of an evil-doer are tied to his body by a belt or other flexible member f which is secured at the back by inserting the member k into the member b, the belt f, which, by reason of the cams e, can only move in one direction through the member b, k, being tightened by pulling on the rings g, l. The part h of the member k, Fig. 3, inserted in the socket a of the member b has springs i adapted to engage behind a fixed ring c in the socket a, the springs i being released by a ring j movable by a special key. In a modification, Fig. 10, the ring H is fixed and the springs I are released by a key, the hooked ends of which are inserted through holes D in the member B.
Patent GB-1343138-A (GB)
Title: Method of preparing metal oxides with arc gas heaters
IPC: C01B13/28
Filed: 1971-04-30
Abstract: 1343138 Vapour phase oxidation P P G INDUSTRIES Inc 30 April 1971 [4 May 1970] 12377/71 Headings C1A and C1N [Also in Division H5] In a process for producing pigmentary oxides by vapour phase halide oxidation in which heat is supplied by passing a stream of gas through an arc gas heater having an upstream cathode electrode and a downstream anode nozzle electrode, a magnetic field is applied around the nozzle electrode to prevent the arc extending beyond the mouth of the nozzle. The electrodes are preferably spaced water-cooled coaxial cylinders 10 and 25. Magnetic fields may be applied around both electrodes by means of field coils 15 and 14 comprising Cu tubing embedded in ceramic material. Work gas is introduced tangentially at 20, preferably with sonic velocity. Suitable electrode materials are listed, the preferred being Ag or an alloy containing 72-99 wt. % Ag and 28-1% Cu. Either of the reactants may be used as work gas and/or may be introduced through either inlets 47, 55; alternatively the work gas may be inert, e.g. Ar, He, Kr, Xe, N 2 , Cl 2  or CO 2 . The shroud gas may be He, Ar, Cl 2 , N 2 , CO 2  or recycle tail gas. The oxide is preferably TiO 2  produced from TiCl 4 , TiBr 4  or TiI 4 , optionally with additives e.g. AlCl 3 , a Zr salt, SiCl 4  or a K compound, e.g. KCl, K 2 SO 4 , KNO 3 , K acetate, or phenyl K. Other oxides are listed. The amount of O 2  may be 0À5-2À5 times stoichiometric. The arc voltage may be 250-4500 V and the current 20-600 A.
Patent GB-118111-A (GB)
Title: Improvements in or relating to Hollow Ware.
Inventor: SNYDER GEORGE COCHRAN
IPC: B21D51/24
Filed: 1918-07-30
Abstract: 118,111. Snyder, G. C. July 23, 1917, [Convention date]. Metal pipes and tubes; paper, wood, and fibrous pipes and tubes. - Tubular articles are made by winding sheet material in spiral form with axially displaced convolutions so arranged that the articles assume a tapered form. The sheet material may consist of metal, asbestos, paper, &c. In making a barrel, a strip of material is slit longitudinally into two portions, which are wound so as to form end rings 10, Fig. 2, and the tapered body 11 is then formed by winding the two portions of the strip spirally. The central portion of the barrel is strengthened by winding upon it a part of the strip which is not slit longitudinally. The shape of the tapered portions may be varied by altering the amount of axial displacement of successive convolutions. A hollow chair-round or other long hollow article may consist of tapered portions 16, Fig. 4, connected by a central portion 17. The articles may be coated internally with glue, &c., and the strips may be coated with adhesive before winding. The external surfaces of the finished articles may be painted or may be enamelled and baked. Specifications 118,109 and 118,110 are referred to.
Patent GB-870880-A (GB)
Title: Improvements in or relating to optical objectives
Inventor: MERIGOLD PETER ARNOLD
IPC: G02B13/04
Filed: 1959-04-13
Abstract: 870,880. Optical objectives. TAYLOR, TAYLOR & HOBSON Ltd. March 30; 1960 [April 13, 1959], No. 12421/59. Addition to 741,511. Class 97(1) The optical objective is of inverted telephoto type and consists of a divergent front member widely separated from a convergent rear member comprising five components of which the middle one is divergent and compound and the other four are convergent, the two outer air spaces in the rear member being collective whilst the two inner air spaces in such member are dispersive and the front surface of the compound middle component of the rear member being concave to the front with radius of curvature lying between 0.75f and 1.25f where f is the equivalent focal length of the rear member. Preferably and as shown, the divergent front member includes a doublet front component having a collective internal contact surface which is concave towards the front, this doublet being located in front of a meniscus simple component. The middle component of the rear member is preferably a bi-concave doublet having a collective internal contact surface with a radius of curvature lying between 0.4 and 0.65 times rhe radius of curvature of the front surface of the component. The radius of the rear surface of this component is preferably between 0.45 and 0.575 times the radius of the front surface of the fourth component of the rear member, this fourth component being bi-convex and axially separated from the component by not more than 0.1f. The refractive indices of the two elements of the middle component of the rear member preferably differ by not less than 0.045 whilst the average value of the AbbÚ numbers of such elements lies between 30 and 46. Optical data are given in the Specification for one example of the embodiment shown and for three examples of an embodiment in which the contact surface in the middle component of the rear member is convex towards the front.
Patent GB-1460485-A (GB)
Title: Process for producing siloxane-polyoxyalkylene block copolymers
IPC: C08J9/00
Filed: 1974-03-20
Abstract: 1460485 Preparation of polysiloxane-polyether block copolymers; polyurethane foams UNION CARBIDE CORP 20 March 1974 12437/74 Headings C3R and C3T A polysiloxane-polyoxyalkylene block copolymer useful in making polyurethane foams is prepared by condensing a siloxane having at least one Si-bonded alkoxy group with a polyoxyalkylene polymer having at least one alcoholic OH group in the presence of a salt giving an apparent pH of 2À4-3À6 when 0À0033 moles of it are dissolved in 37 g. H 2 O and 48- 50 g. of C 4 H 9 (OC 2 H 4 ) 21 (OC 3 H 6 ) 16 OH; the reactants must make an at least partly compatible mixture, to which end solvents, e.g. toluene, benzene, xylene, heptane or octane, may be added. In the examples a polyether is condensed with a polysiloxane in toluene in the presence of the p-toluenesulphonate, dodecylbenzene sulphonate, or trifluoromethanesulphonate of pyridine, quinoline, diethylaniline, aniline, trioctylphosphine, or tridodecylamine. The block copolymers produced are incorporated in foams prepared from a propylene oxide, optionally with 14 wt. per cent ethylene oxide, adduct of glycerol and TDI, in the presence of water, tin dioctoate, trichlorofluoromethane and dimethyl ethanolamine or a triethylamine/ethyl morpholine mixture, and CFCl 3 .
Patent GB-1043411-A (GB)
Title: Improved fuel combustion apparatus and process
IPC: F23D11/00
Filed: 1963-03-29
Abstract: 1,043,411. Burners. GULF OIL (GREAT BRITAIN) Ltd. March 29, 1963 [March 30, 1962], No. 12438/63. Heading F4T. A fuel combustion apparatus consists of a fuel swirl nozzle 30 coaxially mounted within the discharge end of an air tube 10 and a right circular cone 44, the apex 46 of which is adjustably disposed in front of the air tube discharge end. The apparatus is arranged with the cone and air tube end inside a combustion chamber 38. The cone may be solid or hollow and may have its open base blanked off. The axis of the cone coincides with the axis of the air tube 10 and the cone is mounted on a base-plate 47 which is movable by means of a screw 39 to alter the distance between the air tube and the cone. The end of the air tube has a choke 20 which has swirl vanes along its interior surface. Fuel is supplied by a pump and a coaxial conduit 26 to the nozzle. A disc 22 is positioned by lugs 24 concentrically within the air tube and forces air to flow along the inner surface of the air tube 10. The air is supplied by a blower 12. The fuel-air mixture is ignited by fixed electrodes 28. In a modification, Fig. 8 (not shown), the choke 20 is replaced by a sharpedged orifice plate. The fuel-nozzle comprises a frusto-conical swirl stem 66, Fig. 3 (not shown), clamped in the frusto-conical end of a body 56 by a plug 58 screwed into the body. The swirl stem has straight or helical tangential slots 98 and is located by a stud 70 which is a loose fit in a cylindrical opening 72 in the end of the plug 58. Fuel flows through an axial bore 80 and a crossdrilled hole 82 in the plug 58 to an annular space 78 between the plug and the body and then flows through the slots 98 to a swirl chamber 88. The body has a flared discharge orifice.
Patent GB-600513-A (GB)
Title: Improvements in or relating to building blocks
IPC: E04B2/46
Filed: 1945-05-18
Abstract: 600,513. Building - bloclis. ERASMUS, R. J., and POTGIETER, H. May 18, 1945, No. 12515. [Class 87(i)] A building-block 1 has on its upper face a central longitudinal projecting ridge 2, having inclined faces between marginal joint surfaces 6, and a corresponding shaped recess along its underside. A rectangular keying cavity 5 is formed in the centre of the block, and a gap in each end wall of the block communicates with a cylindrical hole to form a keying slot 4. In a building construction in which the blocks 1 are arranged in two adjacent courses laid with broken vertical joints the cavity formed by two adjacent slots 4 overlaps the cavity 5 in an adjacent lower block. By filling the spaces 4, 5 with cement the courses are bonded together and the blocks in each course are keyed together. The blocks are particularly adapted for use in conjunction with corner blocks as described in Specification 600,550.
Patent GB-629152-A (GB)
Title: Improvements in and relating to rotary fluid-operated motors
IPC: F03C2/30
Filed: 1947-02-18
Abstract: 629,152. Rotary engines. WERNER, W. A. P. Feb. 18, 1947, No. 12545/49 Divided out of 629,008 and addition to 621,522. [Class 110(ii)] An engine of the axially-sliding vane type has a rotor compr'sing parts 6, 7, 8, mounted on bearings 4, 5, formed with cam faces 21, 22 which, during rotation, cause the reciprocation of a vane 16, mounted in a slot 15 of the stator 14. Working fluid is supplied through passages 23, 24 in a fixed shaft 1, to one side of the vane 16, and exhausted through passages 25, 26 causing the rotor, which may be a pulley, to rotate in an anti-clockwise direction. The direction of rotation may be reversed. The edges of the vane slide in slots 17, 18 in the stator. The web 14, of the stator, divides the working-chamber into two sections of varying cross-section, which communicate with one another by means of the slot 15. Specification 621,522 is referred to.
Patent GB-843931-A (GB)
Title: Improvements relating to table cigarette lighters
IPC: A24F15/04
Filed: 1955-05-02
Abstract: 843,931. Table lighters. SHARMA, D. N. Aug. 1, 1956 [May 2, 1955], No. 12614/55. Class 75(3) A table lighter comprises a self-contained lighter unit which is carried by and may be removable from a stand adjustably mounted on a universal joint. Any form of lighter unit may be used, Fig. 1, showing a flint and wheel type lighter 14 mounted in a recess in a stand shaped to resemble an aeroplane and caused by a universal joint 30 mounted on a base 10 the lighter being removable and held in place by spring-pressed balls 12. A small roughened recess 13 may be provided to facilate removal. The lighter may also be mounted in inverted position. The nose 5, 6 of the model aeroplane may accommodate lighter spares. The base may be formed with a hollow space to accommodate a drawer housing a musical movement or a radio or for use as an ash tray or to hold liquid or cigarettes or to accommodate the batteries for a lighter operating on butane gas or for an electric lighter. In a modification, the lighter 102, Fig. 12, is carried in a rocket shaped stand the lower part of which may be translucent and enclose a socket for an electric lamp controlled by a switch 116. A flint and wheel lighter may also be mounted in the top half of the model rocket in inverted position, the wick tube then extending the full length of the lighter so that fuel leakage is prevented. Specifications 415,058, 439,478, and 629,694 are referred to.
Patent GB-697545-A (GB)
Title: Dispensing container
Inventor: DUELL EDITH BRISBANE
IPC: A47F3/024
Filed: 1951-05-30
Abstract: 697,545. Dispensing container for tablets. DUELL, E. B. May 30, 1951, No. 12704/51. Class 18 A box for dispensing tablets has a sliding lid carrying depending flanges 20, 23, 25, 26 which co-operate with a projection 18 on the base of the body to permit only one tablet to be exposed when the lid is in its open position. The flanges 23, 25 are notched and the flange 20 has an aperture 27 to permit exit of a tablet. The flange 25 abuts a stop 30 to limit the opening of the lid, which is held closed by the engagement of a lip 15 over the end wall 11 of the body. Integral fillets 17 may strengthen the corners of the body. In an alternative form, (not shown) the element 18 may extend to and be integral with the adjacent side wall of the body. Specification 586,879 is referred to.
Patent GB-253499-A (GB)
Title: Improvements relating to carbonising or cracking fuels
IPC: C10B55/00
Filed: 1926-05-18
Abstract: 253,499. International Combustion Engineering Corporation, (Assignees of Runge, W.). June 12, 1925, [Convention date]. Carbonizing processes.-In the carbonizing or cracking of solid or liquid fuel by showering it in a finely-divided state into a retort having a heating zone in which gases and vapours are produced, a cooling zone is formed above the heating zone so that a large portion of the vapours is condensed to a liquid which falls into the heating zone. The cooling zone may be formed by the introduction of cold gases, or by a cooling-jacket or by cooling-coils in the retort. In Fig. 1, the retort 1 has a hot zone 3 and cool zone 5, hot gases from a heater 18 entering by a pipe 8 and pulverized coal or finely-subdivided oil being supplied through a charging device 7. Cold gases are introduced through pipes 24 to form the cool zone 5 and the permanent gases and lower boiling hydrocarbons are withdrawn through an outlet 22 by a pump 21. In Fig. 3 the upper part of the retort which is adapted for use with oil delivered from a spray 7<b>, is cooled by a jacket 25 and by sinuous cooling pipes 35, 36. The temperature of the cool zone is about 300‹ F. and that of the hot zone about 1050‹ F.
Patent GB-380026-A (GB)
Title: Improvements in or relating to pliers or tweezers
IPC: B25B9/02
Filed: 1932-05-03
Abstract: 380,026. Tweezers. SOKAL, S., 1, Great James Street, Bedford Row, London. -(Dresdner Goldund Silber-Scheideanstalt, Fritz & Co. Ges.; 33, Johann-Georgen- Allee, Dresden, Germany.) May 3, 1932, No. 12766. [Class 61 (ii).] Pliers or tweezers are characterized in that the operating arms, which may be detachable, are made of quartz. The arms 2 are secured to a resilient holder 7 in split ends 6 by nuts or sliding sleeve-pieces.
Patent GB-179551-A (GB)
Title: Improvements relating to internal combustion engines
IPC: F02B75/02
Filed: 1922-05-05
Abstract: 179,551. Guaita, A. May 9, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Two-stroke-cycle engines.-In an engine having piston-controlled pump-inlet and exhaust ports 23, 23<1> and 24, 24<1> and using liquid or gaseous fuel the charge is compressed in chambers 2, 11 and transferred to the working spaces through ports 25, 25<1> in the piston rod 4 having a partition 26
Patent GB-455427-A (GB)
Title: Improvements in tubular water boilers
IPC: F22B17/02
Filed: 1936-05-06
Abstract: 455,427. Heating water. SORENSEN, A. V., The Hollies, Eleanor Cross Road, Waltham Cross, Hertfordshire. May 6, 1936, No. 12791. [Class 64 (i)] In a water-tube boiler for heating greenhouses and like buildings, and of the kind comprising tubes surrounding a combustion chamber-and connected to front, intermediate and rear headers, a plate 1 is arranged behind the intermediate header 3 to direct hot gases over the rear wall of the header. The floor 11 of the setting below the rearwardly extending tubes 5 is inclined upwardly from the plate 1 to the rear header 12.
Patent GB-688804-A (GB)
Title: Improvements in or relating to transducers for use in sound recording and reproducing apparatus
IPC: H04R1/16
Filed: 1951-05-31
Abstract: 688,804. Gramophone recorders and reproducers. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. May 31, 1951 [May 3, 1949], No. 12843/51. Class 40 (iv). A recorder or pick-up can be used with hill-and-dale or transverse records. A T- shaped armature 10, 11 of a pick-up is rubber mounted at 15, 16, 17, vertical movement energizing coil 12, Fig. 2, and coils 7, 8, Fig. 1, the latter being wound in series so that the output at terminals 13, 14 is zero. On the other hand, rocking motion due to a transverse record does not affect coil 12 but energizes coils 7, 8. The circuits may be used one at a time or, in the case of a stereophonic record using lateral and chill-and-dale systems in the one groove, at the same time.