baber/WOPTO huggingface dataset:
Patent GB-811460-A (GB)
Title: Apparatus for controlling and recording the operation of washer boxes
Inventor: WALLACE WALTER MAY
IPC: B03B5/24
Filed: 1956-04-26
Abstract: Apparatus for controlling and recording the operation of jigs for coal or ore cleaning has means for sensing the amount of sink material in the jig and controlling accordingly the admission of raw materials as well as the discharge of the discard material. The sensing means may operate a recording instrument and also control the water and compressed air admitted to the box.  Flow diagrams of the apparatus are given.  Specification 722,993 [Group XXIX] is referred to.
Patent GB-1491378-A (GB)
Title: Well casing hanger assembly
IPC: E21B23/02
Filed: 1975-03-27
Abstract: 1491378 Well casing hanger assemblies N A NELSON and S W PUTCH 27 March 1975 [15 May 1974] 12826/75 Heading E1F A well casing hanger assembly by which inner 10 and outer 12 tubular casings can be locked together to suspend the one within the other comprises a recess 14 in the inner casing a resiliently expandable locking ring 16 received in the recess for limited axial movement having a shoulder 45 which engages shoulder 46 on the outer casing in the expanded position, two surfaces 48, 50 on which the ring 16 can seat to retain the ring in its expanded position, and shear means to prevent axial movement of the ring onto said surface until shoulders 45, 46 are engaged. The second surface 56 on which the ring can seat in its expanded condition is recessed into a notch 58 in the ring 16 and carries a shear ring 60 that is broken off by upward movement of the ring when shoulders 45, 46 engage. The ring locks against upper edge 30 of the recess 14 to suspend casing 10 within casing. Upward movement of casing 10 allows ring 16 to move axially downward off surfaces 56, 48 and will be retracted into the recess by engagement with the continuous inner wall of casing 12. In other embodiments (Figs. 5-8 not shown) shear means are provided adjacent surfaces 48 and 32 to limit the upward axial movement of the ring 16. Two basic forms of locking ring are described: a resilient one piece ring slotted to allow radial expansion (Fig. 2 not shown) and a ring formed from a number of rigid components linked by springs (Fig. 1 not shown).
Patent GB-503453-A (GB)
Title: A method of driving a vehicle or machine by means of an internal combustion engine, and plant for carrying out the method
IPC: F02G3/00
Filed: 1938-04-29
Abstract: 503,453. Gas turbines; combustionproduct plant. HEYLANDT, C. W. P. April 29, 1938, No. 12847. Convention date, May 13, 1937. [Class 110 (iii)] [Also in Group XXVII] An expansion engine C for propelling a vehicle or machine is supplied with gases exhausted from an internal-combustion engine A driving a compressor B. The expansion engine is jointly controlled by its speed governor R and a foot lever F, which also regulates the fuel supply to the internal-combustion engine. When the vehicle is at rest the governor control mechanism is as shown in Fig. 2. If the foot lever F is depressed the fuel supply to the internal-combustion engine is increased, the rod T pushed down and, since the governor R is ineffective, the tubular member V drops and opens fully the inlet throttle valve to the expansion engine. As the vehicle 'attains speed the governor R raises the valve V so that notwithstanding full depression of the lever F the expansion engine at full speed is only charged at about 18 per cent of its maximum possible rate. Release of the lever F will cut down the fuel supply and slow down the engine. Part of the air from the compressor may be. used to supercharge the internal-combustion engine and part be mixed with the exhaust gases before use in the expansion engine. A control rod S associated with the starting device for the internal-combustion engine ensures that, at starting, the internalcombustion engine exhaust and air compressor cylinder are open to atmosphere. The heat of the exhaust gases from the expansion engine and of the cooling of the internal-combustion engine cylinders may be used to produce steam which may be expanded in the expansion engine or in a separate cylinder or cylinders. The compressor may also be automatically regulated to yield air at constant pressure.
Patent GB-595625-A (GB)
Title: Improvements in sickles and like grass cutters
IPC: A01D1/06
Filed: 1945-05-23
Abstract: 595,625. Grass cutters. LOW, A. M. May 23, 1945, No. 12862. [Classes 6 (ii) and 6 (iii)] Safety-razor blades 5 are inserted in a holder provided with a stop or ridge 6 to locate said blades in the holder and so form a grass cutter of scythe type. The holder consists of a metal strip 2 of curved cross-section attached to a somewhat wider flat strip 1 of wood or metal by studs and wing nuts 3. The razor blades are inserted between the two strips to form a continuous cutting edge and abut against the longitudinal ridge 6 on the inner surface of the flat strip 1 so that their projection from the holder is fixed. The blades are held in position by the pressure of the two strips 1, 2. A handle 7 fits into a socket 4 fixed to the flat strip 1 so that the handle is nearer to one end of the composite blade than to the other. The handle is arranged to lie at an oblique angle to the plane of the blade and the vertical plane perpendicular to the edge of the blade.
Patent GB-244339-A (GB)
Title: Improvements in or relating to paper or like sheet feeding machines
IPC: B65H5/24
Filed: 1925-05-18
Abstract: 244,339. Toronto Type Foundry Co., Ltd., (Assignees of Tufts, L. R., and Dalton., R. S.). Dec. 22, 1924, [Convention date]. Pile tables for sheet feeds.-A sheet-feeding machine of the continuous type, in which a bank of feathered sheets is fed from an upper piletable a bv bands a<1> over a reversing drum f to a lower table b, is provided in association with the drum f with a deflector mechanism comprising a plurality of resilient members or holding grips adapted to form an outer spring guide resiliently pressing the sheets to the drum and accurately maintaining their relation. As shown in Fig. 3, an upper set of curved spring members e is adjustably secured to an upper guide bar e<1>, and a lower set of curved resilient members g, preferably staggered relatively to the members e, is adjustably mounted on a shaft g<1> which is fitted with a crank-arm acted on by an adjustable spring g<11> to press the members g towards the sheets. The movement of the members g is limited by stops g<7>. In a modification, Fig. 7, the springs e are formed with hooked ends e" which in the operative position of the springs are placed over a bar g<8>. The lower members g are replaced by curved shoes g<0> adjustably secured to a rod g‹‹.
Patent GB-454779-A (GB)
Title: Process for the manufacture of n-methyl-c, c-allyl-isopropyl-barbituric acid
Filed: 1936-05-07
Abstract: N-Methyl-C : C-allylisopropyl-barbituric acid is prepared either by methylating C : C-allylisopropylbarbituric acid, or by treating N-methyl-C-isopropyl-barbituric acid with allyl halides, or by reacting allylisopropylmalonic ester with methylurea.  The product possesses therapeutic properties.  According to the examples: (1) C : C-allylisopropylbarbituric acid is dissolved in caustic soda solution and stirred with dimethyl sulphate; (2) N-methyl-C-isopropylbarbituric acid, obtained by condensing isopropylmalonic ester with methylurea, is warmed in caustic soda solution with allyl bromide; (3) isopropylallylmalonic ester is heated in an autoclave with methylurea in the presence of sodium dissolved in excess of alcohol.
Patent GB-941918-A (GB)
Title: Improvements relating to nuclear reactor installations
Inventor: HAYDEN OWEN
IPC: G21C15/12
Filed: 1961-04-11
Abstract: 941,918. Reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. April, 18,1962 [April 11, 1961], No. 13086/61. Heading G6C. A fast sodium cooled reactor 11 is contained within a shielded cylindrical vessel 12 itself contained within a multi-walled tank structure 13, the structure including a sodium coolantcontaining tank 14, a leak jacket 15 having heat insulation 16, and a metal clad concrete wall 17 defining a vault. The space between the tank 14 and jacket 15 is filled with nitrogen and the jacket is supported in the vault by rollers 19. Extending through the vault roof 21 is a ring of heat exchanger units such as 22, each unit extending into the sodium coolant in the tank 14, there being connections (not shown) between the units, the interior of the tank 14 and the interior of the vessel 12. Surrounding the whole installation is a containment shell having a cylindrical portion 26 and a domed top (not shown). A jacket 27 backed with heat insulation 28 extends around the inside of the shell portion 26 to define a narrow annular duct 29, this duct forming part of a closed nitrogen gas circuit for cooling the concrete vault and the head of the heat exchanger units 22. The gas circuit includes four ring mains encircling the wall 17: an inlet ring main 30 and an outlet ring main 31 connected, respectively, at a number of positions 30a, 31a to the top and bottom portions of the duct 29, and hot and cold ring mains 32, 33. The hot ring main 32 is connected by a number of pipes 34 to the inlet ring main 30, the outlet ring main 31 and cold ring main 33 being similarly connected but with an interposed fan 35, each fan having an inlet 36 and an outlet 37. The ring main 33 is connected through a number of passages 38 to the bottom of the vault, whilst the top of the vault is connected through passages 41 to the ring main 32. Thus the heated gas withdrawn through passages 41 is cooled in the annular duct 29 by losing its heat to the outer atmosphere and is then returned through the passages 38. A subsidiary ring main 42 encircles the head of each unit 22,this ring main being connected by a pipe 43 to the cold ring main 33 and by a number of passages 44 through the roof 21 to the top of the vault. Thus the head is cooled by the flow of gas from pipe 43 and returning to the passages 41 by the passages 44.
Patent GB-958945-A (GB)
Title: Practice cartridge of synthetic thermoplastic material
IPC: F42B5/067
Filed: 1961-04-12
Abstract: 958,945. Practice ammunition. DYNAMIT NOBEL A.G. April 12, 1961 [April 16, 1960], No. 13166/61. Heading F3A. A practice cartridge comprises a case 2 and projectile 1 cast as one unit from a synthetic thermoplastic material having a specific gravity less than 1, such as polyethylene or polypropylene. The projectile has an axial cavity 4 communicating with the case 2, and a weakening groove 3 allows easy separation on firing.
Patent GB-611556-A (GB)
Title: Xanthylium dye salts as filter and anti-halation dyes in photographic materials
IPC: G03C1/83
Filed: 1946-05-01
Abstract: Xanthylium methine dyes are prepared by condensing a xanthylium salt having a reactive methyl group with an aromatic aldehyde (e.g. benzaldehyde or p-dimethylamino-p-diethylamino-, p-hydroxy-, p-methoxy-, 2 : 4-dihydroxy, or 3-methoxy-4-hydroxy-benzaldehyde) or with an intermediate such as 2-(b -acetanilidovinyl)-benzthiazole ethiodide, 2-formylmethine-1 : 3 : 3-indoline, ethyl orthoformate, or b -ethoxyacrolein diethyl acetal.  Xanthylium salts specified are 6-methylxanthylium chloride, 3 : 9-dihydroxy-6-methylxanthylium chloride, and 3-hydroxy-6-methylxanthylium chloride.  3 : 9-Dihydroxy-6-p-methoxystyrylxanthylium chloride is prepared by refluxing together 3 : 9-dihydroxy-6-methylxanthylium chloride, p-anisaldehyde, acetic acid, and acetic anhydride.  3 : 9 - Dihydroxy - 6 - p -diethylaminostyrylxanthylium chloride and 3 : 9-dihydroxy-6-p-dimethylaminostyrylxanthylium chloride are similarly prepared.
Patent GB-131970-A (GB)
Abstract: 131,970. Gibbs, H. D., Ambler, J. A., and Selden Co. July 8, 1918. Sulphonic acids.-Aromatic hydrocarbons are continuously sulphonated by passing these vapours up through a descending stream of hot sulphuric acid; a tower containing baffle-plates, pebbles, or pumice may be used. The tower may be kept at temperatures at or above the boiling- point of the hydrocarbon, or by using reduced pressure, below the boiling-point. Examples are given of the production of benzene monosulphonic acid, toluene-p-sulphonic acid, toluene disulphonic acid, naphthalene-2-sulphonic acid, and naphthalene-2 : 7-disulphonic acid.
Patent GB-495323-A (GB)
Title: Method of preparing hydrocarbons soluble in sulphuric acid
IPC: C10G17/10
Filed: 1937-05-10
Abstract: Acid tars from the refining of mineral oils are treated in the liquid phase at elevated temperature with an amount of a neutralizing agent which is equivalent to the free and combined sulphuric acid present, and the purified organic reaction product which is liberated is removed after allowing the mixture to separate into layers.  In examples: (1) centrifuged acid tar from lubricating oil is heated with burnt magnesite and water, and after standing, the aqueous magnesium sulphate solution separated from the organic residue; (2) uncentrifuged acid tar from spindle oil is heated with caustic soda solution after a preliminary treatment with water to separate the acid tar from spindle oil; alkali sulphate solution is removed and the organic product washed with dilute sulphuric acid and water prior to being distilled in vacuo over copper oxide; (3) acid tar is heated under pressure with calcium oxide and water in the presence of iron sulphate. Acetone is added, the sulphate layer separated and the solvent removed from the solution of the organic product.  Steam may be used to distil the product and copper sulphate may be used to assist the treatment of the acid tars.ALSO:Acid tars from the refining of mineral oil are treated in the liquid phase at elevated temperature with an amount of a neutralizing agent which is equivalent to the free and combined sulphuric acid present, and the liberated organic reaction product is removed after the mixture has separated into layers.  In examples: (1) centrifuged acid tar from lubricating oil is heated with burnt magnesite and water and after standing, the aqueous magnesium sulphate solution separated from the organic residue; (2) uncentrifuged acid tar from spindle oil is heated with caustic soda solution after a preliminary treatment with water to separate the acid tar from spindle oil; alkali sulphate solution is removed and the organic product washed with dilute sulphuric acid and water prior to being distilled in vacuo over copper oxide; (3) acid tar is heated under pressure with calcium oxide and water in the presence of iron sulphate.  Acetone is added, the sulphate layer removed and the solvent removed from the solution of organic product.  Steam may be used to distil the product and copper sulphate may be used to assist the treatment of the acid tars. Specification 419,372, [Group III], is referred to.
Patent GB-659951-A (GB)
Title: Improvements in or relating to a method of and means for manufacturing metallic bodies of compound material
IPC: B22D19/16
Filed: 1949-05-18
Abstract: 659,951. Foundry plant; casting composite articles; centrifugal casting-machines; moulds. BROMS, C. O. J. May 18, 1949, No. 13291. [Class 83 (i)] A roll or similar elongated body is made by centrifugally casting in a chill mould a hollow cylinder 13, Fig. 3, preferably of hard metal, and then a layer 14 of different metal inside the cylinder and finally gravity casting a core 19 preferably of softer and tougher metal. The layer 14 may consist of metal similar to the core. For the centrifugal casting operations the chill 1, which may be horizontal, inclined or vertical, is provided with a closure 3, Fig. 1, to attach it to a rotary head 2, and an annular closure 4 to admit the removable pourer 6. After the layers 13, 14 have been poured, the pourer is withdrawn by turning about an axis 7, the chill 1 is removed from the closures 3, 4 and arranged between sand moulds 15, 16, Fig. 3, for the pivots 17, 18 of the roll and the core metal is poured in from the top or through a detachable runner 22. In this case a slide 24 may then be operated to close the gate and the runner removed to allow the metal therein to run out and the runner to be attached to the next mould of a series on carriages 27, Fig. 9. To prevent the layers 13, 14 from falling out of the chill 1 when the closure 3 is removed it may have a projecting bolt 20, Fig. 3, or ring 21, Fig. 7.
Patent GB-794335-A (GB)
Title: Improvements in or relating to the preparation of steroid compounds
Inventor: JONES EWART RAY HERBERT
IPC: C07J5/00
Filed: 1955-05-09
Abstract: The invention comprises 11-oxo-allo-steroids having a 3b -hydroxy or -acyloxy group, a 9a -chlorine or bromine atom and being saturated in all rings, especially 9a -bromo-3b ,17a ,21-trihydroxy - 5a  - pregnane - 11,20 - dione and its 21- and 3,21-esters, and also a method for their preparation by halogenation of an 11-oxo-5a -steroid in an inert solvent with chlorine or bromine in the presence of a strong acid catlyst, particularly hydrogen chloride or bromide.  The process is preferably performed between 0 DEG  and 50 DEG  C. in an inert atmosphere in the absence of light and peroxides, specified solvents being acetic acid, methylene chloride, chloroform, and dioxane, and using from 1 to 1.5 mols. of halogen per mol. of steroid starting material.  Specified acyloxy groups include acetoxy, propionyloxy, butyryloxy, phenylacetoxy and benzoyloxy groups.  In examples: (1) 3b -acetoxyergostan-11-one in acetic acid under nitrogen is treated with HBr and then bromine, giving 3b -acetoxy-9a -bromo-ergostan-11-one; (2) 3b  - acetoxy - 17a  - hydroxy - 5a  - pregnane -11,20-dione in ether is treated with bromine and HBr in acetic acid, yielding 3b -acetoxy-17a -hydroxy - 9a ,21 - dibromo - 5a  - pregnane - 11,20 - dione, which with sodium iodide in acetone and then potassium acetate gives b ,21-diacetoxy-17a  - hydroxy - 9a - bromo - 5a  - pregnane - 11,20 - dione; (4) 21 - acetoxy - 3b ,17a - dihydroxy - 5a  - pregnane - 11,20 - dione similarly gives 21 - acetoxy - 9a  - bromo - 3b ,17a  - dihydroxy - 5a  - pregnane - 11,20 - dione, which is oxidized with chromic oxide to 4,5a -dihydro-9a  - bromo - cortisone acetate; (5) as in (4) using chlorine yields 21-acetoxy-9a -chloro-3b ,17a  - dihydroxy - 5a  - pregnane - 11,20 - dione; (6) 3b  - acetoxyergostan - 11 - one is chlorinated in carbon tetrachloride to 3b -acetoxy-9b -chloroergostan-11-one.
Patent GB-134014-A (GB)
IPC: B23K3/06
Abstract: 134,014. Wade, H., (Universal Winding Co.). Oct. 21, 1918. Soldering.-An electric soldering-tool is adapted to be operated by one hand and to furnish a continuous supply of solder. In the construction shown in Fig. 2, a strip of solder 16 is carried in a holder or magazine 9 hinged to lugs on the handle 3, but normally held by a spring 13 with the solder away from the bit 6. The solder is connected through a contact 21 with one of a pair of electric conductors 28, the other being connected with the bit. On pressing down the holder 9, as by the thumb, the solder touches the bit, so completing the circuit. The solder melts and can be applied to the work.
Patent GB-1171696-A (GB)
Title: Coated Medicaments
Inventor: CRAWFORD RICHARD ROBSON
IPC: A61K9/36
Filed: 1967-03-22
Abstract: 1,171,696. Coating pharmaceutical forms. EASTMAN KODAK CO. 22 March, 1967 [25 March, 1966], No. 13430/67. Heading A5B. A coating material for solid medicaments comprises an alkali metal ethyl cellulose sulphate. The preferred alkali metal is sodium, and the material may be a water-soluble product containing 5-7% sulphur and 34-40% ethoxyl, which is derived from an ethyl cellulose having 45-47% ethoxyl, or a waterinsoluble product containing 4-4.5 % sulphur and 41-42% ethoxyl, obtained from ethyl cellulose having 48-49% ethoxyl. When the sodium ethyl cellulose sulphate is soluble, the coating may include other less soluble cellulose derivatives to control the solubility of the coating; such derivatives are ethyl cellulose, or cellulose mono- and dicarboxylic acid esters such as cellulose acetate, cellulose acetate-phthalate, -succinate, or -butyrate, and ethyl cellulose phthalate. All the coatings preferably include a plasticiser, such as polyethylene glycol, propane diols, diethyl phthalate, methyl and ethyl ricinoleate, and diethyl sebacate and its homologues. The medicaments are coated by applying a solution of the coating material in a volatile organic solvent, e.g. methanol, acetone with methanol, or methylene chloride with methanol, and evaporating the solvent. The solution may be applied by spraying or by dipping, and the solids coated may be pills, tablets or powder particles, optionally pre-coated with gelatin or enclosed in gelatin capsules. Powders may be made into a paste with the coating solution and then compressed into tablets. Medicaments which may be coated include tricalcium phosphate and aspirin.
Patent GB-129159-A (GB)
Title: Improvements in or connected with Medical or Surgical Douches.
Inventor: MCNAMARA THOMAS HENRY
IPC: A61M3/02
Filed: 1918-08-19
Abstract: 129,159. McNamara, T. H. Aug 19, 1918. Syringes.-A rectal or vaginal douche of the type in which the liquid is injected by the action of the weight of the patient on a piston seat is provided with means for relieving excessive pressure of the liquid. The apparatus comprises an outer vessel 1, a piston seat 3 formed with a flange 4, and fitted with a cup-washer 6, and an injection tube fitted with a nozzle 21 and an obturator 18. The injection tube comprises a tube 11 connected to the tube 8 by a flexible rubber connexion 9. A tube 14 carrying the nozzle and obturator slides within the tube 11 against the action of an internal spring 16, so that, in use, the obturator is pressed into contact with a disk 35 held in position by a spring 36. Excessive internal pressure causes the liquid to force down the valve 35, so that the liquid may escape through the passages 20 and groove 19 in the obturator 18. A valve 22 formed with a flange 23 controls the flow of liquid from the container 1 to the injection tube. This valve is normally open owing to its weight, but closes on a sudden excessive application of pressure owing to the action of the liquid on the flange 23. The inlet tube is fitted with a non-return ball valve 31 to prevent back-now of the injection liquid. The container 1 may be filled through an inwardly-opening valve 27 by immersing it in a container of liquid, and is closed when out of use by a lid 28.
Patent GB-880866-A (GB)
Title: Improvements in and relating to pull-wire signalling systems for use in mines, quarries and the like
IPC: B66B19/06
Filed: 1958-04-29
Abstract: 880,866. Pull-wire signalling systems. DAVIS & SON (DERBY) Ltd., JOHN, and DAVIS, W. B. July 23, 1959 [April 29, 1958], No. 13491/58. Addition to 781,881. Class 78 (5). The pull-wire used in the signalling system of the parent Specification is made of conductors 10, each covered in insulation 11 and together wrapped in tape 13 and then in steel wire braiding, the whole having an outer layer 15 of p.v.c. The wire braiding may carry current.
Patent GB-1111163-A (GB)
Title: Improvements relating to methods of manufacturing luminscent materials
IPC: C09K11/66
Filed: 1966-03-28
Abstract: Boric acid or oxide is added to the reaction mixture before firing in preparing a luminescent silicate of one or more of calcium, strontium, barium, magnesium and zinc, activated by lead alone or with manganese; the boric acid (H3BO3) is 0.5-6 mol per cent (best 3.5 mol per cent) of the heat metal. The phosphor is sensitive to short-wave u-v, e.g. 253.7 mm., and emits long-wave u-v with maxima at 300-365 mm.