baber/WOPTO huggingface dataset:
Patent GB-532727-A (GB)
Title: Improvements in method of making dies
IPC: B29C43/00
Filed: 1939-07-25
Abstract: 532,727. Dies. ABOUCHAR, P. C. July 25, 1939, No. 21654. [Class 87 (ii)] [Also in Groups XXII and XXXVI] A die or mould comprises at least two parts forming the walls of a mould or impression chamber, each wall being an exact female counterpart of the surface to ,be produced and each consisting of electrodeposited iron or steel. The die is formed of taking plaster casts of the desired object or pattern, electrodepositing copper upon the impression surfaces of the plaster casts, stripping the copper shells, electrodepositing iron or steel upon the impression surfaces of the copper shells and finally stripping the copper shells. Fig. 6 shows a plaster cast with an electrodeposited copper shell 32. After stripping the shell 32, it is backed with plaster or wax 33, Fig. 8, the rear surface is coated with shellac 34 and an electrodeposit 36 of iron is formed on the surface of the copper shell, which deposit, when of sufficient thickness, is stripped and finished or polished and forms one of the desired die parts. The die 36 may be strengthened by annealing &c. Where the dies are to withstand heavy pressures, an accurate backing is formed as follows: the surface of the die 36 is coated. with non-conducting material 36a, Fig. 9, and a copper shell 39 is electro-deposited on the near surface; this is then backed with low melting point alloy to form a backing 40 after which the shell 39 and backing 40 are removed and a casting of iron, steel &c. is made therefrom. The shell 32 may be of metal other than copper and may be formed by casting.
Patent GB-929596-A (GB)
Title: Method for the production of incandescent lamp filaments
IPC: H01K3/02
Filed: 1961-06-15
Abstract: 929,596. Making incandescent lamp filaments. EGYESULT IZZOLAMPA ES VILLAMOSSAGI R.T. June 15, 1961 [June 17, 1960], No. 21658/61. Class 39 (2). [Also in Group XXII] In a method of producing flattened helical filaments for an incandescent lamp by flattening a cylindrical helix of wire of metal of high melting point, e.g. tungsten, a helic of finally stabilized crystal structure is placed on a core of ductile material and flattened together with the core between jaws shaped to correspond to the shape of the helix at a temperature not exceeding 500‹ C. to an extent that the ratio of the width to the height of the helix is at least 2.5: 1, the core being finally removed. A core of iron, aluminium, soft copper or unsoftened copper may be used and may be of other than cylindrical shape. The flattening may take place in an atmosphere of protective gas. The flattening may be carried out by inserting the core carrying the helix in a block of hard metal, e.g. iron, having two slots at right-angles as shown in Fig. 3, one slot accommodating the helix and core and the other serving to limit the length of the helix. Specification 227,385 is referred to.
Patent GB-460774-A (GB)
Title: Improvements in or relating to tins, cartons and like containers for food or the like
IPC: B65D43/02
Filed: 1935-07-31
Abstract: 460,774. Tins, cartons, and like containers. BARLOW, R., WORTHINGTON, J., and TALLANT, O. J. July 31, 1935, No. 21672. [Class 125 (iii)] A tin &c. 1 which can be vacuumized comprises a lid 3 having a continuous depending flange 4 and an uninterrupted restriction formed at or near the edge of the flange. The tin has a folded-over or raw edge 6 and an annular shoulder or ridge 5 spaced therefrom with which the restriction on the lid co-operates. A second ridge 14 is provided to give purchase to a coin or other opening implement. The two ridges may be displaced by an inward locking bead. The lid may have an inwardly or outwardly curled edge, or the edge may be left raw. A sealing gasket 12 may be employed in the lid. Specifications 420,452 and 457,459, [Group XXII], are referred to.
Patent GB-320933-A (GB)
Title: Improvements in or relating to ball game apparatus
IPC: A63B69/00
Filed: 1928-07-26
Abstract: 320,933. Herrtage, S. E., and Lawrence, J. L. July 26, 1928. Table games; tennispractising appliances.-In a ball-game apparatus of the kind in which the ball is attached to an elastic line hung from a suspension joint, the line is supported by a post or posts and is provided with a spring anchorage at the post or posts. As applied to a table-game apparatus, the invention comprises a rubber sponge filled ball 20, Fig. 1, suspended by an elastic line 18 from the centre of a cord 16 that is stretched between two upright posts 11 and maintained in stretched condition by a spring 17 disposed beneath the table 21 and connected to the upper ends of the posts. The single line 18 may be replaced by two diverging lines 19. The ball is struck by a racket with the object of causing it to hit certain spaces on the table, to which scoring-values are assigned. As applied to an outdoor game apparatus, the invention comprises a horizontal arm 45, Fig. 4, pivoted to the upper end of a post 43 and connected at its outer end by an elastic line 48 to a tennis ball 49. The momentum of the ball causes the arm to rotate against the action of a return spring 47. In a modification, a helical spring is interposed in the length of the post, the pivoted arm being retained or dispensed with as desired.
Patent GB-1139252-A (GB)
Title: Improvements in methods of depositing a volatile material on a solid support
Inventor: ROBOT MICHEL
IPC: C30B23/06
Filed: 1967-06-09
Abstract: 1,139,252. Semi-conductor devices. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. 9 June, 1967, No. 21691/66. Heading H1K. [Also in Division C7] A semi-conductor is produced by depositing a volatile material on a solid support into which the volatile material is capable of diffusing. A piece of the volatile material M and the support S are enclosed within a container 1 at a short distance E from each other, and the container is heated to keep the support and piece at the same temperature such that some of the material vaporizes and is deposited on the support. A vacuum of less than 100 microns of mercury is produced within the container before the container is heated. The growth takes place in an epitaxic matter, in the orientation of the crystalline structure of the support, which may be a monocrystal having a given orientation or a polycrystal. Non-homogeneous structures such as devices having a variable forbidden wavelength may be produced.
Patent GB-924106-A (GB)
Title: A high pressure vessel comprising a punch
IPC: B01J3/06
Filed: 1961-06-16
Abstract: <PICT:0924106/III/1> A high pressure vessel comprises a chamber defining with at least one inwardly movable punch, a pressure space, the punch being formed with an axis of symmetry running through the chamber and comprising two parts engaging over a contact surface and is characterized in that the contact surface is an arched non-developable surface, e.g. a substantially spherical surface, and in that the centre of curvature of the arched surface substantially coincides with the axis of symmetry of the punch and is situated on the side of the contact surface turned towards the chamber.  The punch may be divided into several parts, adjacent contacting surfaces of which are spherically curved and whose centres of curvature substantially coincide; the parts of the punch may be made of different materials.  The high pressure vessel in Fig. 3 comprises a cylindrical space 25 limited by a pipe 26 and two punches 30 and 31. In addition to pipe 26 the radial walls comprise cylindrical parts 27 and 28 and a partially conical part 29 which is supported by movable casing 50, parts 27, 28 and 29 being concentric with 26.  Punch 30 consists of conical parts 32 and 33 and cylindrical part 34, contact surfaces 37 and 38 being spherical and concentric and having their centres of curvature on the axis of symmetry of the punch.  Movable punch 31 has conical parts 39, 40 and 41 and externally cylindrical parts 42 and 43, all the contact surfaces being concentric and spherical.  When punch 31 is moved upwards, supporting body 51 supports the punch.  Punch 30 is surrounded by an electrically insulating material 54, e.g., mica or paper, to enable electric current to be led into the pressure space 25 via bolt 55 and the current is led off through punch 31.  In space 25 the current may be conducted by a metal thread or spiral enclosed in the material to be treated, the thread being in contact with parts 34 and 43 of punches 30 and 31.  Alternatively, both punches may be movable, also the arched surface may be ellipsoidal or paraboloidal.
Patent GB-1209909-A (GB)
Title: A long chain hydrocarbon ketone
IPC: C07D303/14
Filed: 1967-08-30
Abstract: 1,209,909. Unsaturated ketones. ZOECON CORP. 30 Aug., 1967 [24 Feb., 1967 (3)], No. 21838/70. Divided out of 1,209,902. Heading C2C. The novel compound 6-ethyl-10-methyldodeca-5,9-dien-2-one is obtained by a method analogous to that used to prepare 6,10-dimethyldodeca - 5,9 - dien - 2 - one and comprising reacting the ethylene ketal of 1-bromo-4-pentanone with triphenyl phosphine to obtain 4-ketopentylidenephosphorane, reacting this Wittig reagent with methyl ethyl ketone to prepare the ethylene ketal of 6-methyl-5-octen-2-one which is hydrolysed to the ketone and reacted with a second mol. of the Wittig reagent to obtain the ethylene ketal of 6,10-dimethyldodeca-5,9-dien- 2-one which yields the ketone on hydrolysis. 6 - Ethyl - 10 - dodeca - 5,9 - dien - 2 - one is obtained by substituting 1-bromo-4-hexanone in the preparation of the first-used Wittig reagent in the above process sequence.
Patent GB-259005-A (GB)
Title: Improvements relating to apparatus for radio communication
IPC: H04B1/22
Filed: 1925-09-01
Abstract: 259,005. Pearce, S. C., and Smith, J. S. Sept. 1, 1925. Receiving apparatus; non-thermionic amplifiers. - A crystal d in series with condensers f, f<1> is connected in the aerial circuit and an electromotive force applied across the crystal through an inductannce or choke c. In a modication a connection is taken from the lead between the detector and telehones k to the lead between the battery a and crystal d and in addition the other side of the telenhone is connected to earth. In a further modification an inductance is connected across the condenser f and coupled to inductances g, i.
Patent GB-650912-A (GB)
Title: Improvements in or relating to electrical units for radio receivers and the like
Inventor: BARNES HAROLD ERNEST
IPC: H01G2/00
Filed: 1948-08-19
Abstract: 650,912. Printed circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Aug. 19, 1948, No. 21894. [Class 36] [Also in Group XL (c)] An electrical unit comprises a plurality of insulating wafers secured one above the other in stack formation and having at least one electrical component formed by an adherent coating on one of said wafers and at least another electrical component formed by an adherent coating on another of said wafers, means being provided for conductively connecting said components. A wafer is defined as a sheet which is sufficiently thin to be flexible. As shown in Figs. 2 and 3, two similar wafers of insulating material 5 and 6 are provided, and the top surface of wafer 5 has applied to it by printing or like means two coatings 8, 9 of high conductivity which cooperate with a coating 12 on the reverse side to form the condensers 1, 2, Fig. 1. The coatings 8, 9 are connected by a coating 11 of resistive material forming resistor 3, resistor 4 consisting of a coating 20 on the insulating wafer 6, and the two wafers are assembled so that the surfaces 7, 19 are on the outside, and are secured together by metal eyelets 25 ... 28, which also secure flexible leads and soldering tags and connect the components as by a piece of metal foil 33 placed between the wafers to make contact with the coating 12 and folded over and clamped by the eyelet 27 to make contact with the resistive strip 20. An alternative arrangement, Figs. 4 to 7 (not shown), provides two resistors having a common terminal point and two further resistors and one condenser of larger capacity having a common terminal point.
Patent GB-1194882-A (GB)
Title: Continuous Casting Apparatus
IPC: B22D11/08
Filed: 1967-05-11
Abstract: 1,194,882. Continuous casting. E. W. BLISS CO. 11 May, 1967 [11 May, 1966], No. 21904/67. Heading B3F. In a curved type continuous casting machine in which a controlled flow of molten metal is fed into a mould M from a tundish B, a flexible starter bar E is provided which is releasably connected to a starter head 34, for initiating the ingot withdrawal and which is disconnected from the subsequently formed ingot I and conveyed along a path different from that of the ingot, into a storage position. The starter bar E is conveyed into the storage position on rollers 36 by a winding drum 32 which engages the starter bar by means of a rope 31. Prior to the commencement of a casting operation the starter bar is fed by power driven rollers 44<SP>1</SP>, 45<SP>1</SP>, against the tension in the rope 31 created by the winding drum, to a position in which the starter head plugs the bottom of the mould M. A releasing mechanism is provided between the starter bar and starter head which comprises a toggle (73-75) actuated plunger 70 at the end of the starter bar engaging radially displaceable balls 71 which when located in the starter head engage recesses 72 to secure the head to the bar. The bar is released from the head when the casting ingot has passed into the withdrawal and straightening device F having withdrawal rollers 40, 41 and in which rollers 53 engage cam means 75 on the toggle mechanism to actuate the plunger for the release of the starter head. The starter bar is then rapidly removed to its storage position and the cast ingot is straightened and passed to a cut of device G. The ingot is cooled by sprays J as it traverses its curved path within the support roller apron D. Reference has been directed by the Comptroller to Specification 1,037,569.
Patent GB-748422-A (GB)
Title: Thiadiazole derivatives and compositions containing them
Inventor: STEVENSON HERBERT AUBREY
IPC: C07D285/125
Filed: 1953-08-07
Abstract: The invention comprises compounds of formula <FORM:0748422/IV(a)/1> wherein R denotes a benzyl radical bearing one or more halogen atoms or nitro groups as substituents in the benzene nucleus.  The compounds are prepared by heating a compound R-halogen, where the halogen is preferably chlorine, with 2 : 5-dimercapto-1 : 3 : 4-thiadiazole in presence of an alkaline condensing agent, e.g. sodium or potassium hydroxide, and preferably in an anhydrous medium. The examples describe the preparation of 2 : 5-bis-41-nitrobenzylthio- and 2 : 5-bis-41-chlorobenzylthio-1 : 3 : 4-thiadiazole.ALSO:An acaricidal composition comprises a compound of formula <FORM:0748422/VI/1> wherein R denotes a benzyl radical which is either unsubstituted or bears one or more halogen atoms (preferably chlorine) or nitro groups as substituents in the benzene nucleus, together with a diluent or carrier.  The composition may have the form of a dust, dispersion, emulsion or a solution giving a mist or aerosol. Diluents, carriers and ancillary substances specified are pulverulent solids (e.g. kaolin); water; water miscible organic solvents (e.g. acetone); paraffin oils (e.g. white oil); aromatic hydrocarbons boiling within the range 80-300 DEG C. (e.g. benzene, xylene); wetting, dispersing, suspending and emulsifying agents; magnesium sulphate; and mixtures of a non-volatile oil (e.g. vegetable oil) and a miscible volatile supplementary solvent (e.g. cyclohexanone or acetone) preferably incorporating a volatile propellant (e.g. a mixture of chloro-fluoroderivatives of methane and ethane).
Patent GB-531764-A (GB)
Title: Improvements relating to the jointing of sheet material for walls or the like
IPC: E04F19/06
Filed: 1939-07-28
Abstract: 531,764. Panelling. DONALD, J. L. July 28, 1939, No. 21932. [Class 20 (iv)] A joint assembly for wall boards or the like comprises a substantially channel-shaped member 8 with resilient side walls and a flat back, adapted to be secured to the framing members 10 between the edges of boards 12 but separated therefrom, and a cover-strip 13 having a rail or bead means 14 for non-yieldingly engaging between the sides of the channel member which have inwardly projecting portions 11. These portions may be continuous or intermittent and the outer edges of the sides of the channel are level with the outer surfaces of the boards. The cover-strip may be of metal or of mouldable plastic material.
Patent GB-1040715-A (GB)
Title: A method of and apparatus for comparing the densities of fluids
Inventor: FERTIG GLENN HOWARD
IPC: G01N21/35
Filed: 1963-05-31
Abstract: 1,040,715. Transistor pulse generators. MINE SAFETY APPLIANCES CO. May 31, 1963, No. 21938/63. Heading H3T. [Also in Division G1] A free running transistorized multivibrator circuit 3 which alternately drives transistors 16 and 17 into conduction, supplies current to radiation sources 29, 30 in a density-measuring system (see Division G1). A variable resistor 43 in a divider network including resistors 42, 44 across a battery 13 controls the conduction of a transistor 41 which in turn controls the conduction of transistor 17 and thus the intensity of the source 30. Similarly the intensity of the source 29 is controlled by the transistor 16 whose conductivity is controlled by a transistor 22 having its base connected to the junction of a pair of resistors 23, 24 forming a divider across the battery 13. In the event of any difference in the emergent radiations from the cells 32 and 33 a difference signal is fed from the detector unit 39 to an amplifier 46 whose resultant output is then fed from the detector unit 39 to an amplifier 46 whose resultant output is then fed along line 25 to a circuit consisting of resistors 27, 28 and capacitor 26, to control the conductance of transistor 22 and hence the intensity of the radiation from the source 29 until balance of the beams emerging from the cells 32, 33 is achieved. The difference in intensity of radiation from the sources 29, 30 is measured on a voltmeter 45 whose indication is taken as a measure of the comparative densities of the specimens.
Patent GB-1187795-A (GB)
Title: Borate Compounds
IPC: C07F5/04
Filed: 1967-05-11
Abstract: 1,187,795. Borates. ASHLAND OIL & REFINING CO. 11 May, 1967 [16 May, 1966 (2)], No. 21938/67. Heading C2C. [Also in Division C5] The invention comprises compounds of the formulµ where R 1  and R 2  are alkyl of 1-22 carbon atoms, alkyl of 1-8 carbon atoms substituted with hydroxy groups or with aryl, cycloalkyl, cycloalkenyl, alkaryl, alkylcycloalkyl or alkylcycloalkenyl groups of 6-10 carbon atoms of R 1  and R 2  form a heterocyclic ring and R is alkyl or alkoxyalkyl of 6-22 carbon atoms, and quaternary ammonium and N-oxide derivatives thereof. The compounds may be prepared by reacting a compound of the formula with boric acid, and oxidizing to the N-oxide or quaternizing if required.
Patent GB-516840-A (GB)
Title: Improvements in and relating to the protection of electric arc rectifiers
IPC: H02H7/12
Filed: 1938-07-25
Abstract: 516,840. Protective cut-out arrangements. BRITISH THOMSON-HOUSTON CO., Ltd.. and READ, J. C. July 25, 1938, No. 22037. [Class 38 (v)] A protective system for arc-rectifier equipments of the kind in which a number of rectifier units in parallel are protected on the A.C. side by a common switch, comprises protective relays arranged on the A.C. side of the rectifier equipment which carry currents proportional to the currents in the individual units or unit groups. An A.C. source 1 supplies a D.C. load 7 over a switch 2, interconnector 3, and a number of rectifier units, of which two are shown, comprising transformers 4, 4<1>, and rectifiers 5, 5<1>, or a number of rectifiers may be grouped together on one or more transformers as a unit. Current transformers 8, 9, 10 may be provided controlling switch 2, but for complete protection of the system against overload, the current transformers 9 can be dispensed with by connecting the current transformers 8, 10 to protective relays 11, 12 in the manner shown whereby the relay 11 carries the current of transformer 8, and relay 12 the difference between the currents of transformers 10 and 8, that is, the current which would be carried by transformer 9, if provided. The relays may, in addition to opening switch 2, supply arc-suppression to the rectifier-control grids.
Patent GB-959476-A (GB)
Title: Fluid flow control valves
IPC: H04Q1/45
Filed: 1961-06-19
Abstract: 959,476. Valves. A. B. BUCKLEY. June 15, 1962 [June 19, 1961; Dec. 6, 1961], Nos. 22065/61 and 43741/61. Heading F2V. A valve comprises a resilient closure member 6, Fig. 1, which may be hollow or solid, which mounted in a rigid member 7 such that the resilient member 6 protrudes from the member 7 when the valve is open. In closing the valve, the member 6 engages the seat and is compressed until the member 7 engages the seat and the fluid pressure at the inlet acts on the resilient member to increase the sealing effect. In a modification, Fig. 3, the member 6 is formed with a portion extending into the seating member. The member 6 may be screwed to a threaded portion 12 integral with a back-plate 10 and the skirt 13 is formed with a flange 13a engaged by the member 6. In a further modification, the skirt is formed as 7 above and the member 6 is attached by a screw.
Patent GB-140011-A (GB)
Title: Improvements in and relating to catalyzing material
IPC: B01J23/70
Filed: 1919-09-08
Abstract: Fibrox,-a silicon oxycarbide in the form of extremely fine interlacing fibres, the preparation of which is described in Specification 16299/13, [Class 1 (ii), Inorganic compounds &c.],-is used as a support or carrier for catalytic material.  A nickel catalyst may be prepared by the decomposition of nickel carbonyl in the presence of fibrox; for example, fibrox strips are placed in a glass or quartz container, the air exhausted, nickel carbonyl preferably under reduced pressure admitted, and nickel deposited on the fibres by heating the container so as to decompose the carbonyl. Similarly, a platinum catalyst can be prepared by decomposing a platinum carbonyl chloride, obtained by passing carbon monoxide and chlorine over platinum sponge heated at 250 DEG  C.  Or osmium may be deposed on the fibrox to produce an osmium catalyst by reduction of the vapour of osmium tetrachloride by means of hydrogen.  In other examples, the catalytic material is deposited on the fibrox from solutions, for example by prolonged boiling of a solution containing platinum chloride and ferrous sulphate, or of a solution containing nickel sulphate and sodium hypophosphite, in both cases the platinum or nickel salt being reduced to metal; the catalyst is then thoroughly washed with water.  Catalysts prepared with fibrox as the carrier may be used in the oxidation of ammonia to nitric acid, in the manufacture of sulphur trioxide, and in the synthesis of ammonia.ALSO:Platinum carbonyl-chloride is prepared by passing carbon monoxide and chlorine over platinum sponge heated to 250 DEG  C.
Patent GB-905872-A (GB)
Title: Improvements relating to sliding bolt door and like fastenings
Inventor: ALLART FRANK
IPC: E05C1/06
Filed: 1960-06-24
Abstract: 905,872. Sliding bolts. ALLART & CO. Ltd., FRANK. June 19, 1961 [June 24, 1960], No. 22124/60. Class 44. In a flush-type sliding bolt comprising a pivotal hand lever e, an inner protruding extremity e<SP>2</SP> of which is linked to a spring-controlled sliding belt b in such manner that a toggle mechanism is presented which is moved over dead-centre position for automatic maintenance when the bolt is driven home, the bolt is controlled by a coil compression-spring c concealed in a slot b<SP>2</SP> on its enclosed underside between an abutment d on the attachment plate a, a<SP>1</SP> and an abutment b<SP>3</SP> on the bolt at the extremity of its slot b<SP>2</SP>.