baber/WOPTO huggingface dataset:
Patent GB-1446026-A (GB)
Title: Composite particles
IPC: C07C27/00
Filed: 1973-08-08
Abstract: 1446026 Porous-coated particles MITSUBISHI PETROCHEMICAL CO Ltd and FUJIMI KENMAZAI KOGYO KK 8 Aug 1973 [10 Aug 1972] 37610/73 Headings B1E and B2E [Also in Division C1] A particle comprises a core of metal or metal oxide catalyst having a coating or a sheath which is formed with pores to allow the passage of fluid through the coating or sheath, the coating or sheath having greater crush strength and abrasion resistance than the core. A space may be formed between the sheath and core. In a preferred method, catalyst core material is mixed with water to form a paste which is granulated. The granules are then coated with a paste of sheath material and the particles are then dried and sintered. Sintering is omitted when coatings of powdered organic particles are used. The sheath material may be particulate or be formed of particles and a fusable binder. The material of the sheath may include or comprise the same material as the core. The core material may be an oxidation catalyst such as MnO 2  or catalysts such as Pt or Pd supported on an inert carrier. The space between the sheath and core may be formed by providing an intermediate coating of a material which is combustible during sintering, such materials being e.g. walnut husk powder or fibres, sawdust cellulose, polyolefins, polystyrene, wheat flour, microcrystalline cellulose, cornstarch, saccharide or polyvinyl alcohol. It is also possible to use materials which are soluble in water, acid or alkali, or a sublimatable material (e.g. camphor) to make the space. The space forming material can be used in forming the pores in the sheath or in the core. The sheath material may. be ceramic powder (e.g. fused Al 2 O 3 , SiC, Al 2 O 3 , SiO 2 , or zircon), glass powder (e.g. sodium, lead or borosilicate glass), metal powder (e.g. Fe, Al, Cu, Sn, Pb or Zn), alloy powder (e.g. gun metal, stainless steel), MgO, cements (e.g. Portland or alumina cement), or organic polymers. When the sheath material is difficult to bond by sintering a binder such as clay, kaolin, feldspar or glass powder is used. An MnO 2 / Fe 2 O 3  core with a glass/alumina powder sheath is stated to catalyse oxidation CO and Hydrocarbons in exhaust gases. Examples of MnO 3  with various sheaths are given wherein phenol is converted to 2, 6 xylenol and o-cresol.
Patent GB-523209-A (GB)
Title: Improved process for the separation of aluminium from aluminium foils associated with foreign substances
IPC: C22B21/00
Filed: 1938-12-28
Abstract: 523,209. Recovering aluminium. SCHMIDT, K. Dec. 28, 1938, No. 37665. Convention date, Feb. 23. [Class 82 (i)] Aluminium is separated from aluminium foils associated with foreign substances, by heating them within one or more containers filled with an inert gas or closed to the access of air, in a furnace, and after cooling freeing them from the carbonized foreign substances, for example, by means of a dressing machine and flowing air. Further, the aluminium foils may be heated above the melting point of metallic impurities such as zinc and lead but below that of aluminium, the latter being removed by screening or blowing away the lighter aluminium.
Patent GB-1161848-A (GB)
Title: Preparation of Tetraalkyl Benzene.
Inventor: LANGER ARTHUR WALTER
IPC: C07C2/68
Filed: 1967-08-17
Abstract: 1,161,848. Pyromellitic dianhydride. ESSO RESEARCH & ENG. CO. 17 Aug., 1967, No. 37896/67. Heading C2C. [Also in Division C5] Pyromellitic dianhydride may be prepared by the vapour phase oxidation, e.g. in the presence of vanadium catalysts, or liquid phase oxidation, e.g. in the presence of HNO 3 , of a 1,2,4,5- tetraalkylbenzene, which is prepared by reacting a xylene feed with propylene, butene-1, butene-2 or mixtures thereof in the presence of an acidic alkylation catalyst dissolved in the xylene. (see Division C5)
Patent GB-904505-A (GB)
Title: Improvements in or relating to electron discharge tubes for television, radar and the like
Inventor: HARRIES JOHN HENRY OWEN
IPC: H01J29/48
Filed: 1958-11-25
Abstract: 904,505. Cathode-ray tubes. HARRIES ELECTRONICS CORPORATION Ltd. Nov. 17, 1959 [Nov. 25, 1958], No. 37954/58. Class 39 (1). An electron gun includes an apertured shielding electrode 4, Fig. 1, an indirectly-heated cathode 1 of axially symmetrical shape and having a forward part 2 which projects through the aperture and is tapered towards its forward end. An initially diverging beam is emitted from the cathode forward part. The apertured end of shield 4, which is also the modulator, may be flat as shown or conical with a forward taper. The still-diverging beam passes through a first anode 9 and a second 10 to a beam-limiting aperture 13, the image of which is finally focused on phosphor screen 17a, Fig. 3, by the final electron lens as an extremely fine spot. The image on screen 17a is reflected by internal Schmidt mirror 20 through corrector plate 27 to final viewing screen 28. The screen 17a and a locating pin 23 are supported on spider arms 24, 25. During assembly, the cathode point is accurately centred in the shield aperture by a jig with adjusting screws which move the ceramic disc 5. The adjusted cathode-shield unit is then aligned with the remaining electrodes by mandrel 29, Fig. 5, and spacers 31, 32, 36, before supporting posts 15, Fig. 1, are finally sealed into four glass supporting arms 16. Mandrel 29 is rotatable on bearings 33, 34 and has a recess 44 to give room for the cathode point. Specification 897,359 is referred to.
Patent GB-990588-A (GB)
Title: A dispensing device for small objects
IPC: B65D83/04
Filed: 1962-10-08
Abstract: 990,588. Tablet dispensers. B. ENGLESSON. Oct. 8, 1962 [Oct. 6, 1961], No. 38078/62. Heading B8P. A transparent plastics dispensing device for tablets consists of a container 1 with four channels, a feeder 2 which fits over the end of the container and a lid 5 in the form of an angle member with an arm 7 having a pressure surface 8 with a fillet-shaped edge 9 fitting into a corresponding recess beneath a portion 4. When pressure is applied to the surface 8, openings 18 and 15 and one of the openings 10, 11, 12 or 13 come into co-operation while a stud 24 attached to the lower side of the said surface 8 presses on the second tablet in the channel so preventing all but the first tablet from leaving the channel under gravity. In a modification, the tablets can be ejected by spring pressure. To prevent the dispensing lid from being actuated accidentally projecting edges 19, 21 can be provided on the sides of the feeder, the lid then sliding in the groove so formed. The plastic container 1 can be produced by extruding the form shown in Fig. 7 to which plastic strips are then glued to form top and bottom walls of the container. The lid can be provided with a catch to hold the member 5 in its upper closed position by locking the movement of the angle member by means of a rotatable button. In another form of the invention the tablets are placed in a box which has a dispensing channel along one side, to the end of which is attached the feeding device.
Patent GB-1217706-A (GB)
Title: Low temperature gas mixture separation process
Inventor: LINNETT DAVID THOMAS
IPC: F25J3/02
Filed: 1968-08-09
Abstract: 1,217,706. Cold separation of gas mixtures. BRITISH OXYGEN CO. Ltd. 25 July, 1969 . [9 Aug., 1968], No. 38234/68. Heading F4P. Crude hydrogen is freed of carbon dioxide and water vapour by passage through an absorber 2 after which the hydrogen is freed of methane and a portion of the carbon monoxide content by rectification at 3, the gaseous hydrogen effluent containing the residue of carbon monoxide is then passed through a methanator 4 in which the CO is converted to methane and the resulting mixture of hydrogen and methane is rectified at 3 and gaseous hydrogen together with some gaseous methane is withdrawn as product.
Patent GB-1142368-A (GB)
Title: Pot broach
IPC: B23F21/26
Filed: 1966-08-26
Abstract: 1,142,368. Gear-cutting. NATIONAL BROACH & MACHINE CO. 26 Aug., 1966 [13 Sept., 1965], No. 38325/66. Heading B3L. An annular broaching member comprises internal helical cutting teeth 26 and an external helical slot 28 of the same lead to locate the member in a holder ( 10) . The holder comprises two half-shells screwed together and a series of conically-ended pins 32 to engage the slots 28.
Patent GB-905360-A (GB)
Title: Improvements relating to variable gain amplifiers for audio signals
Inventor: TAYLOR ERIC WILFRED
IPC: H04S1/00
Filed: 1957-12-11
Abstract: 905,360. Semi-conductor circuits. ELECTRIC & MUSICAL INDUSTRIES Ltd. Dec. 11, 1958 [Dec. 11, 1957], No. 38464/57. Class 40 (6). A variable - gain amplifier utilizes the Hall effect. Audio signals from a source 3 are applied in the longitudinal direction to a Hall element 1 and an output obtained in the transverse direction and applied to amplifier 5. This output is proportional to the field provided by electromagnet 2, the current in the coil 4 of which comprises the gain-controlling signal. The arrangement is more particularly intended for use in the stereophonic system comprising the subject-matter of Specification 871,992, the input and output leads being so disposed as to minimize mutual coupling.
Patent GB-1142451-A (GB)
Title: Push button electrical switch
IPC: H01H13/58
Filed: 1967-08-22
Abstract: 1,142,451. Switches held set and freed mechanically. JOHN OSTER MFG. CO. 22 Aug., 1967 [25 Nov., 1966], No. 38571/67. Heading H1N. On depression of a button 37 of a multiple push-button switch, a latch plate 77, pivoted on a spindle 71 and normally biased against a cam surface 68 of the button by springs 81 is tilted and latches the button 37 depressed by engaging a cam surface 66 thereof (Fig. 3). When another button is depressed it tilts latch plate 77 to release the latched button. Simultaneous operation of any two buttons is prevented by cam sliders 86 located in a housing slot 88 of a length greater than the combined length of the sliders by an amount to receive a projection 94 of only one button between the sliders (see Fig. 7). Each plastics button 37 has stops 41, 44, guide ribs (47, Fig. 6), and a return spring 62 mounted in a cavity and retained by a guide post 58. The plastics housing mounts an independent on-off switch (23, Fig. 1) and comprises a cup-member 25 closed by a removable contact board 32. Board 32 mounts contacts 100 co-operable with contact blades 110, on depression of a button 37, by means of a portion 40 thereof, blades 110 being interconnected by a resilient conductor 103 (see Fig. 4).
Patent GB-1433850-A (GB)
Title: Packaging material
IPC: H01F41/26
Filed: 1974-09-04
Abstract: 1433850 Electro-plating magnetic and non- magnetic coatings FUJI PHOTO FILM CO Ltd 4 Sept 1974 [4 Sept 1973] 38746/74 Heading C7B A non-magnetic and a ferromagnetic metallic coating are electro-plated on a non-magnetic metallic substrate, e.g. Cu, Zn, or Sn, by immersing it in an aqueous plating bath containing at least one salt of one or more ferromagnetic metals, e.g. Ni or Co,optionally with a compound of Cr and/or P, passing an electric current having a density of 0À3 to 1À5 A/dm<SP>2</SP> between the substrate and a counter electrode in the bath to cause a non- magnetic coating to be deposited, and increasing the current to a density of 0À8 to 10 A/dm<SP>2</SP> to cause a ferromagnetic coating to be deposited from the same bath. The sizes of the deposited particles are preferably 500Š to 0À1 micron in the ferromagnetic coating and 100Š to 0À1 micron in the non-magnetic coating. Preferably the bath may contain Ni(BF 4 ) or <SP>2</SP>NiSO 4  and NiCl 2  (or the corresponding Co salt), with H 3 BO 3  and NaH 2 PO 2 ; one or more compounds of Cu, Zn, Au or Sn, which selectively deposit in the non-magnetic coating, may also be present. The substrate may be provided with a subbing layer of Cu, Zn or Sn plated from corresponding sulphate baths. For Ni plating, Ni anodes may be used; for Co plating, a Pt- or Rhplated Cu, Sn or Zn anodes may be used.
Patent GB-1407006-A (GB)
Title: Production of photographic prints
IPC: G03B17/24
Filed: 1972-08-21
Abstract: 1407006 Photographic printing apparatus AGFA-GEVAERT A G 21 Aug 1972 [21 Aug 1971] 38814/72 Headings G2A and G2X Photographic prints, especially borderless prints, are made by projecting images 2 on to a photosensitive strip 1, projecting marks 3a on to a border 3 at the edge of the strip, processing, and scanning the marks 3a to control a cutter 13 for producing separate prints, the border 3 being at least partially separated from the rest of the strip after processing. The border may be completely cut from the strip or perforated so that the customer can remove it. The border may also bear a date, and marks 3b, c, d indicating printing corrections, order numbers, the serial numbers of the corresponding originals and the position of the end of a series of originals. In Fig. 3, each time a photo-cell 12 detects a mark 3a it resets a counter 23 to zero. Counter 23 counts pulses from a measuring device 24, stops rollers 6, 7 and operates a cutter 13. Rollers 21, 22 slice off the border. In Fig. 2 (not shown) the border is perforated by a toothed wheel (18).
Patent GB-936242-A (GB)
Title: Photographic roll-film camera
IPC: G03B19/04
Filed: 1959-11-17
Abstract: 936,242. Cameras. E. KURBI, and C. NIGGELOH, [trading as KURBI & NIGGELOH METALLWARENFABRIK]. Nov. 17, 1959 [Nov. 26, 1958], No. 38993/59. Class 98 (1). A photographic roll-film camera is constructed to leave a wide longitudinal margin to one side of the image area on the film, and, as shown in Fig. 2, the marginal portion 4a of the film 4 may be exposed to light coming through the objective 6 and an interposed marking slide 7 to allow the recording of data on the film. Alternatively (Fig. 3), the margin may intercept the viewfinder field, a perforation or notch 4b in the margin allowing unobstructed view when the film to be exposed is correctly registered; or, the said perforation may engage a spring catch 14 adapted to give audible or tangible indication when the film is correctly registered. Spaces 15, 15a may be used for housing camera accessories such as a tape-measure, exposure meter or range-finder.
Patent GB-1277204-A (GB)
Title: Improvements in epoxide reactions
Inventor: BETTS ALBERT THOMAS
IPC: C06B45/10
Filed: 1968-08-15
Abstract: 1277204 Curing epoxy resins DEFENCE SECRETARY OF STATE FOR 17 Nov 1969 [15 Aug 1968] 38998/68 Heading C3B [Also in Division C2] Epoxy resins are cured by polycarboxylic acids and/or carboxylated polymers using as catalyst a chromium (III) complex of salicyclic acid or a substituted salicyclic acid (see Division C2). Typical substituted salicyclic acids are chloro- or bromo-substituted salicyclic acids, cyclohexyl-, C 1-6  alkyl-, cyclohexyl- or phenyl- or methylphenyl-substituted salicyclic acids. Typical chelates are bis-(3,5-diisopropylsalicylato)-monohydroxy chromium (III) and tris- (3,5-diisopropylsalicylato) chromium (III). The catalyst may be present at 0À001-5% of the total weight of epoxide and carboxylic acid. Typical curing agents are carboxylated butadiene copolymers, oxalic acid, adipic acid, succinic acid, tartaric acid, citric acid, 3,3- ethylmethylglutaric acid and 3-tert.-butyladipic acid. Uses.-Rocket propellant binders; adhesives.
Patent GB-370002-A (GB)
Title: Improvements in electron discharge timing device
IPC: H03K17/288
Filed: 1930-12-29
Abstract: 370,002. Thermionic valve circuits. LE VAN, J. D. and STANSBURY, C., 12th Street, Milwaukee, Wisconsin, U.S.A. Dec. 29, 1930, No. 39049. Convention date, Jan. 2. [Class 40 (v).] In an arrangement for producing a cessation in the flow of a current for an adjustable predetermined period, which may be employed in conjunction with an electric welding apparatus, a change is effected, first in one direction and then in the return direction in the conductivity of an electron discharge device, these changes being produced by a unidirectional change, effected by a unidirectional circuit commutation, in the potential impressed upon a given impedance, which causes a change, first in one direction and then in the return direction, in the control potential of the discharge device. As shown in Fig. 1, the closure of the switch 10 causes the potential between lines L1, L2 to produce a current in the controlled device 2 connected in the plate circuit and also causes a current to flow through a resistance 8 in the grid circuit, both circuits being completed through a resistance 9. The P.D. across the resistance 8 causes a charge to accumulate in the shunt condenser 7 so that when the switch 10 is opened a negative charge will have accumulated on the side of the condenser next to the grid. Thus a cessation of plate current is immediately produced until, after a predetermined time interval which is adjustable by variation of the resistance 8, the condenser has fully discharged through the resistance and the anode current again flows through the valve. As applied to the control of a transformer 20 supplying the electrodes of an electric welder, Fig. 2, when the electrodes 23 are brought together a grid circuit through a paralleled resistance 36 and condenser 37 is broken at contacts 40. The coil of a relay 29 is then de-energized for a definite time interval in the manner previously described, completing at 31 the circuit of the coil 25 of relay 24 which attracts its armature 26 so closing at 27 the primary circuit 21 of the heating transformer 20. When the condenser 37 has fully discharged the flow of welding current is automatically stopped. When the jaws 23 are opened the contacts 40 are again bridged in readiness for a subsequent cycle of operations.
Patent GB-978299-A (GB)
Title: Penicillins
Inventor: NAYLOR JOHN HERBERT CHARLES
IPC: C07D499/00
Filed: 1962-10-17
Abstract: The invention relates to penicillins of the general formula <FORM:0978299/C1/1> and non-toxic salts thereof, where X and Y are the same or different and are each chlorine, bromine or fluorine, e.g. 3-(21,61-dichlorophenyl) -5- methyl -4- isoxazolyl penicillin and its sodium or potassium salts.  Other salts are those with calcium, aluminium, ammonium, trialkylamines, procaine, dibenznylamine, N-benzyl beta phenethylamine, l-ephenamine, dehydroabietylamine, N,N1-bis-dibenzylethylenediamine and N,N1 bis-dehydroabietylethylene diamine.  The penicillins may be prepared by reacting 6-aminopenicillanic acid, or a liquor containing it, with an acid chloride, bromide, anhydride or mixed anhydride derived from a carboxylic acid of formula  <FORM:0978299/C1/2> 3-(21,61-Dichlorophenyl) -5- methylisoxazole -4- carboxylic acid is prepared by the condensation of 2,6-dichlorobenzohydroxamoyl chloride with methyl acetoacetate in methanolic sodium methoxide followed by hydrolysis of the resulting ester. The acid chloride is obtained by treatment with thionyl chloride.  3-(21-Chloro -61- fluorophenyl) -5- methylisoxazole -4- carboxylic acid is prepared by chlorinating 2-chloro -6- fluorobenzaldoxime, condensing the resulting hydroxamoyl chloride with methyl acetoacetate in methanolic sodium methoxide and hydrolysing the resulting ester. The acid chloride is obtained by treatment with thionyl chloride. 3-(21-Bromo -61- chlorophenyl) -5- methyl isoxazole -4- carboxylic acid is likewise produced from 2-bromo -6- chlorobenzaldoxime and converted to its acid chloride. When incorporated in pharmaceutical compositions the penicillins and their non-toxic salts give high blood levels of penicillin and exhibit resistance to penicillinase.
Patent GB-351912-A (GB)
Title: Improvements in or relating to grinding mills
IPC: B02C7/10
Filed: 1929-12-23
Abstract: 351,912. Disc &c. grinding or crushing mills. BœHLER BROS., Uzwil, Switzerland. Dec. 23, 1929, No. 39334. Convention date, Feb. 11. Void [Published under Sect. 91 of the Acts]. [Class 59.] In a grinding mill comprising a large and small stone 3, 4 respectively, mounted eccentrically and displaceable in the grinding plane, the smaller stone is angularly displaceable about its stationary axis either manually or from the driving-shaft through reduction gearing. With horizontal stones the stationary stone may be moved in the plane of adjustment either by a continuous automatic linear reciprocating motion between two end positions or by intermittently displacing this stone between the end positions. The stone 3 is rotatable on a shaft 2 and the stone 4 is mounted in the end cover 5 of the casing 1, the material being fed between the stones from the hopper 6. The lower edges of the stones coincide and the stone 4 may be rotated to equalize wear.
Patent GB-1326388-A (GB)
Title: Apparatus for suspending a weapon on a users body
IPC: F41C33/00
Filed: 1970-08-17
Abstract: 1326388 Equipment for carrying weapons on the person A S WOJCINSKI 17 Aug 1970 [16 Aug 1969 20 May 1970] 39480/70 Heading A3V  Apparatus for suspending a long barrelled firearm diagonally across the front of its user's torso, comprises a body strap 1, to which are fixed two spaced apart shackles 4 and 5, and two straight limbed hooks 6 and 7 which are attached to the fiearm and are engaged one in each shackle. The hooks are mounted on the firearm parallel to the axis of the barrel and comprise an elongated portion terminating with a ball. The elongated portion of hook 7 is longer than that of hook 6 so that when the latter is pulled free from shackle 4, hook 7 will still be engaged in shackle 5. Securing elements in the form of blocks of resilient material such as rubber may be used which have recesses cut out which correspond in shape to the ball ends of the hooks and by means of the resilience of the material the hooks can be fastened into said recesses so as to be prevented from slipping free from the shackles by accident. In one embodiment the upper hook 6 may be attached to the firearm by means of a horseshoe shaped construction which is designed to enclose and adhere firmly to the hand guard of the weapon, said construction having a recess in which a U-shaped fixing portion of the hook 6 is secured. In a second embodiment the hook 6 comprises a fixing portion with a through hole which is threaded by a shaft incorporated in the firearm so that the hook may be rotated from a position where it is sufficiently spaced from the firearm to engage in the shackle to a position where it is contained in a recess therein. In an alternative arrangement the shackles may be attached to the weapon and the hooks to the body strap.
Patent GB-1235990-A (GB)
Title: Process of producing moulded masses and coated substrates
Inventor: METZNER WOLFGANG
IPC: C08F283/01
Filed: 1969-08-08
Abstract: 1,235,990. Coating. FARBENFABRIKEN BAYER, A.G. 8 Aug., 1969 [10 Aug., 1968], No. 39728/69. Heading B2E. [Also in Division C3] A coated substrate is prepared by applying a coating mass containing an unsaturated polyester and a copolymerisable monomeric compound on a substrate and wholly or partly curing by means of electron radiation in the presence of 0.1 to 5% by weight, based on the weight of the mass, of a phosphine, arsine or stibine as curing initiator. In the Examples stained Macore wood is coated.
Patent GB-1431323-A (GB)
Title: Aminonaphthalenesulphonic acids
IPC: C09B62/006
Filed: 1973-07-02
Abstract: 1431323 Aminonaphthalene sulphonic acids BAYER AG 2 July 1973 [3 July 1972] 39759/75 Divided out of 1431322 Heading C2C The invention comprises compounds of the formula where R is H or C 1 -C 4  alkyl and W is a direct bond or a bridge member. The compounds may be prepared by reacting a 2-amino- or 2- acylamino-1-sulphonaphthalene in an acid medium with an N-methylolamide, an N-methylolimide, an alkyl ether of an N-methylolamide or N-methylolimide, an N-halomethylamide, an N - halomethylimide, an N,N - methylene - bisamide, an N,N-alkylidene-bis-amide or a mixture of formaldehyde, or a formaldehyde derivative, with an amide or nitrile, and subsequently saponifying.