baber/WOPTO huggingface dataset:
Patent GB-118578-A (GB)
Title: Improvements in and relating to Protective Devices for Electric Circuits.
IPC: H01T1/18
Filed: 1918-05-08
Abstract: 118,578. British Thomson - Houston Co., (General Electric Co ). May 8, 1918. Resistances, electrolytic.-In a highpotential discharge device of the kind in which a spark-gap is connected in series with a plurality of electrolytic cells, each cell comprises a receptacle of insulating-material separated from the receptacles of the adjacent cells and containing a conducting-plate immersed in the electrolyte. The conducting plate is connected to an electrode which projects through the base of the receptacle into contact with or in close proximity to the electrolyte of the next lower cell. An insulating- screen is placed over the immersed plate. In the arrangement shown in Fig. 1, a spark-gap consisting of an umbrella electrode 24 and a sphere 23 is connected to a series with a plurality of electrolytic cells through a metal cover 4 and a flexible contact member 25 secured to a metal plate 12 by a bolt 14. The plate 12 is placed at the bottom of an insulating-receptacle 1 to which is secured an electrode 6, Figs. 1 and 3, consisting of a screwed conductor 9 and an insulating- sleeve 10 having a tapered end 11. The electrode 6 projects into a lower receptacle and into contact with or in close proximity to the surface of an electrolyte 5. An insulating shield 15 is placed over the metal plate 12 immersed in the electrolyte 5. The receptacles 1 are separated by spacing members 3 and the joints are made airtight by gaskets 20, 21. The spacing-members 3 are provided with filling holes 7. The electrolyte consists of a strong solution of sodium carbonate having a specific gravity of 1.08 at 20‹ C. and a specific resistance of about 12 ohms per cubic centimeter at 22‹ C.
Patent GB-1460252-A (GB)
Title: Automatic machine for threading ferrite cores on wire
IPC: H01F41/08
Filed: 1975-02-25
Abstract: 1460252 Magnetic storage arrangements VYCHISLITEL TSENTR SIBIR OTDELENIA AKAD NAUK SSSR 25 Feb 1975 [19 March 1974 1 April 1974 8 April 1974] 7783/75 Addition to 1331920 Heading H3B A curved wire 5 extends through a base sleeve 2 into a rotatable bin 1 in which toroidal ferrite cores 4 are loaded, the wire being bent into a direction opposite to that in which the bin is rotated so that the end 7 of the wire engages core apertures sequentially as the bin rotates and causes cores so threaded to pass to a position externally of the bin. The bin is rotated by a drive 11, rotation of the wire which is curved externally at 12 being prevented by a fixed plate 8, Fig. 2. Bore threading is assisted by the use of an adjustable permanent magnet 13 and a magnetisable ring 14 for positioning the cores in a vertical position. Alternatively an electromagnet may be used, Fig. 3 (not shown). Loading up the bin may be effected automatically by the use of a larger funnel-shaped supply bin 16, Fig. 4.
Patent GB-609536-A (GB)
Title: Improvements in and relating to measuring microscopes
IPC: G02B21/00
Filed: 1946-03-13
Abstract: 609,536. Optical gauging-apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. March 13, 1946, No. 7861. Convention date, March 15, 1945. [Class 106 (ii)] In a measuring microscope, the optical system of which can be displaced along a base through an accurately measurable distance in at least one direction, the base is provided with one or more stop surfaces thereon adapted to abut gauge blocks and thereby extend the range of measurement. The usual surface plate supporting the work-piece to be measured may have registration or guide strips secured thereto. The microscope shown has stop surfaces 14 at the corners of the base 1 on which the optical system 4 is displaceable along slideways by means of a micrometer screw 15. A further adjustment comprises a slide 5 operated by a micrometer screw 6 and adapted to be rotated about a supporting column 3. The base 1 is apertured and may be supported on detachable legs. The microscope can be used in conjunction with a work support comprising two spaced centres for receiving the work, and the sides of the base of the support may be formed as straight edges to abut the stop surfaces on the microscope.
Patent GB-1375664-A (GB)
IPC: H04L25/03
Filed: 1972-02-21
Abstract: 1375664 Adaptive transversal equalizers INTERNATIONAL BUSINESS MACHINES CORP 21 Feb 1972 [30 June 1971] 7892/72 Heading H4R In a self adaptive transversal equalizer for use with partial response signalling, i.e. where data bits for transmission are converted to signals having non-zero values at more than one sampling instant, at the receiver an error signal is developed as the difference between the signal received from the channel, and an ideal signal recreated from the received signal, as interpreted by the receiver detector, and the error signal is correlated with a signal derived from the channel, either before or after equalization, the correlator outputs being used to control the adjustable gain devices on the taps of the transversal equalizer delay line. Figure 2 shows an embodiment in which the transversal equalizer comprises the 1 bit delays, the gain devices 48 and the adder 44. The output from the adder is fed to a detector 50 to recover the binary data signal, which is fed out and is also fed to a partial response coder including a mod 2 adder, "AND" and "OR" gates 24, 26, adder 46, and 2 bit delay 28 which converts the data stream to a signal having a sequence 101, over three sampling instants, for each input 1, in a similar manner to the partial response coder used at the transmitter. The resulting coded signal C<SP>1</SP> is compared, in 30, with the signal from the equalizer. C<SP>R</SP> to derive an error signal e n . The error signal is then correlated in the multipliers and integrator with a precoded signal B<SP>1</SP>, derived from within the partial response coder, to produce a signal causing incrementing of the tap gains in the transversal equalizer. Because of the partial response coding the results of the correlation are applied to more than one gain adjuster, as shown by the interconnections between the multipliers and integrators of the different taps of the delay line. Since the partial response coder 24, 26, 28, 46, is dependent on the previous transmitted data stream, which at start-up is not known, inhibitors 20 and 22 are provided to inhibit operation except when the C<SP>R</SP> value is + 1 or - 1 which conditions are unambiguously B<SP>1</SP> = 1 and 0 respectively, and require no knowledge of the prior digits. In a modified system, Fig. 3 (not shown), the correlation is between the error signal, derived as shown in Fig. 2, and the input to the transversal filter as presented at the delay line taps which are appropriately interconnected with the multipliers.
Patent GB-700925-A (GB)
Title: Improvements in and relating to timing devices and to clutches therefor
Inventor: SMITH RAYMOND HAROLD BEVAN
IPC: G04F3/06
Filed: 1951-04-05
Abstract: 700,925. Induction relays; retarding action of switches. ENGLISH ELECTRIC CO., Ltd. April 4, 1952 [April 5, 1951], No. 7935/51. Class 38(5) [Also in Group XXIV] A timing device (e.g. an inverse time lag relay of the induction disc or cup type) comprises primary and secondary members which may be connected by a positive clutch (see Group XXIV), the primary member being driven by a motor on the initiation of a timing cycle and the secondary member driving a timing element. In the embodiment shown a toothed clutch member 4 is driven through a pin-and-slot connection 1a, 2a from an induction disc shaft 1 and is lifted against gravity into engagement with a member 6 by magnetic means. A dnum 7 driven by the member 6, carries a contact 8 and a stop pin 9, and is initially held, by means of a weight 10 on a cord 12 attached to the drum 7, with the pin 9 in contact with a pillar 13 which is mounted on a setting knob 21. An arm 14, carried by the pillar 13, engages a toothed member 3 to position the clutch member 4 correctly for engagement with the member 6 in all positions of the knob 21. In operation the clutch is engaged and the motor driving the shaft 1 is energized simultaneously, the drum 7 being driven until the contact 8 abuts a fixed contact (not shown) whereupon the motor stops, the clutch disengages and the drum 7 is returned to its initial position by the weight 10. The clutch engaging means comprises a magnet coil 17 energized preferably by alternating current, the magnetic circuit including pieces 18, 19 embracing, but spaced from, shafts 2, 5 of magnetic material. The shaft ends 2b, 5a are enlarged and may carry shading rings 15, 16.
Patent GB-1382904-A (GB)
Title: Linear induction electric motors
IPC: H02K41/025
Filed: 1972-02-22
Abstract: 1382904 Linear motors ZAVOD ELEKTROTRANSPORTA IMENI FE DZERZHINSKOGO 22 Feb 1972 8020/72 Heading H2A A linear induction motor consists of an inductor 2 located on one or each side of a reaction member 3 positioned asymmetrically with respect to the inductor and having a series of elongated slots 5 formed along the portion which extends to one side of the inductor, which slots reduce repulsive forces acting at right angles to the tractive force. The length of each slot is either equal to or greater than the pole pitch of the inductor and the spaces between the slots are less than the pole pitch.
Patent GB-1447957-A (GB)
Title: N-sulphenylated oxime-carbamates and their use as insecti cides acaricides and nematicides
IPC: C07C67/00
Filed: 1975-02-26
Abstract: 1447957 N-sulphenylated oxime-carbamates and their insecticidal compositions BAYER AG 26 Feb 1975 [27 Feb 1974] 8035/75 Heading C2C The invention comprises compounds of Formula I in which R<SP>1</SP> and R<SP>2</SP> are independently hydrogen atoms or alkyl, alkenyl, alkynyl, alkoxy, alkylthio, alkoxycarbonyl, carbamoyl which may be alkyl substituted or alkylthioalkyl groups or R<SP>1</SP> and R<SP>2</SP> together with the carbon atom to which they are attached form a ring of Formula Ia in which X is sulphur, Y is sulphur or oxygen and R<SP>4</SP> is hydrogen or a C 1-4  alkyl group and R<SP>3</SP> is hydrogen or halogen which may be prepared by reacting (a) a carbamic acid fluoride of Formula II with a compound of Formula III optionally in the presence of a diluent, the compound of Formula III being reacted as such, optionally in the presence of an acid binding agent, or in the form of an alkali metal salt thereof, or (b) a sulphenyl chloride of Formula IV with a compound of Formula V optionally in the presence of a diluent and of an acid binding agent. Insecticidal, acaricidal or nematicidal compositions comprise, as active ingredient, a compound of Formula I, in admixture with a solid or liquefied gaseous diluent or carrier or a liquid diluent or carrier containing a surface active agent.
Patent GB-600023-A (GB)
Title: Improvements in photographic light-sensitive materials
IPC: G03C1/053
Filed: 1945-03-30
Abstract: Hydrophilic hydrolysed interpolymers of aliphatic terminally unsaturated mono-olefines of 2 to 4 carbon atoms and vinyl esters, having a mol ratio of 0.3 to 0.2 of olefine to 1.0 of vinyl ester, alone or in admixture with gelatin, are used in the preparation of photographic colloid layers, which may also contain light-sensitive silver halide, sensitizing and other dyes, pigments such as colloidal silver, dye intermediates such as salicylaldehyde-phthalaldehydic acetal of polyvinyl alcohol, light-sensitive diazonium salts, dichromates, light-sensitive dyes, fluorescent materials such as calcium tungstate or lead sulphate, N-allylthiourea, sodium sulphate, sodium thiosulphate, potassium bromide, sodium carbonate, wetting agents such as sodium alkylsulphates or alkylsulphonates or alkali metal salts of alkylnaphthalene sulphonic acids, or casein.  The interpolymers may be prepared by interpolymerising a vinyl ester and an aliphatic mono-olefine of 2 to 4 carbon atoms containing a double bond between a terminal carbon atom and the vicinal carbon atom with a persulphate or peroxide-type catalyst at moderate pressures at temperatures of 50 to 80 DEG  C. followed by hydrolysis or alcoholysis in acid or basic solutions.  The interpolymers described in Specification 582,093 may be so hydrolysed.  Vinyl acetate or propionate ethylene, propylene, or isobutylene interpolymers may be hydrolysed.  Hydrolysis may be effected by dissolving the interpolymer in an alcohol (e.g. methanol or ethanol) or a hydrocarbon (e.g. toluene) and an alcohol and treating with an alkali such as sodium or potassium hydroxide or an acid such as hydrochloric, sulphuric, or p-toluenesulphonic. Partial or complete hydrolysis may be effected.  The interpolymer may contain a mol ratio of 0.3-0.02 of olefine to 1.0 of hydrolysed vinyl ester, i.e. an ethylene content of 1.2 to 16 per cent by weight or an isobutylene content of 2.4 to 27 per cent by weight.  An interpolymer containing 1 mol ethylene to 45 mols vinyl acetate may be hydrolysed. Interpolymers with very low proportions of olefine are hydrolysed completely.  Solvents specified are mixtures with water of methanol, ethanol, methoxymethanol, cyclohexanol, benzyl alcohol, furfuryl alcohol, propanol, n-butanol, ethylene glycol, glycerol, acetone, dioxane, acetic acid, methyl acetate or ethanolformamide. Specifications 535,341, 542,904 and 559,689 also are referred to. The Specification as open to inspection under Sect. 91 refers also to hardening of the hydrolysed interpolymers with formaldehyde or chromium, zirconium, or aluminium salts.  This subject-matter does not appear in the Specification as accepted.
Patent GB-492311-A (GB)
Title: Improvements in and relating to objectives for photographic purposes
IPC: G02B13/02
Filed: 1937-03-19
Abstract: 492,311. Lenses. WARMISHAM, A., WYNNE, C. G., and KAPELLA, Ltd. March 19, 1937, No. 8082. [Class 97 (i)] A telephoto objective comprises three compound components separated by air spaces, the front and middle components being convergent and the rear component divergent, and the air space between the two convergent components being greater than half the focal length of the objective. Preferably each component is approximately self-corrected chromatically, and the back focal length is less than a quarter of the focal length of the objective. Data are given for the example shown, having an aperture F/1-65 and back focal length À14F.
Patent GB-724312-A (GB)
Title: Armatures for electro-magnetically operated devices
IPC: H02K33/06
Filed: 1953-03-24
Abstract: 724,312. Reciprocating electric motors. REUTTER, J. L. March 24, 1953, No. 8153/53. Class 35. The reciprocating armature 18 of an electromagnetic pump unit operated by the effect of coils 10 on the flux from permanent magnets 14 in cores 11, has radially disposed magnetic laminµ 33 on its periphery. The armature comprises a plastic or light alloy core 26 having axial holes 27 to prevent compression of the gas in the ends of the tube 2. In the form shown, the laminµ are secured by the turned-up ends 36 of a plastic or light alloy tube 30 which is secured on the core 26 by circular ribs 28. The laminµ are secured radially by binding rings 35 and are curved as shown in Fig. 3 so as to compensate for the difference of periphery at different radii. After assembly the outer edges of the laminµ may be machined along the circle 38. In a modified form, the core 26 may be moulded onto the shaft 25 and may also secure the laminµ.
Patent GB-849126-A (GB)
Title: Improvements in and relating to aqueous compositions having diminished corrosive properties
Inventor: CLOUGH HARRY
IPC: C11D3/20
Filed: 1958-03-14
Abstract: An aqueous corrosion inhibiting composition which may constitute with a suitable antifreeze agent an I.C. engine coolant, or which may be used in a cutting oil emulsion, contains from 1 to 500 parts per million of a compound of structure:- RX(CR1R11)nCOOY, in which R is an alkyl, aryl, alkaryl or aralkyl group, X is oxygen or sulphur, R1 and R11 are hydrogen atoms or alkyl groups, Y is a metal, preferably an alkali metal, or an unsubstituted or substituted NH4 radical and n is a whole number. Phenoxyacetic acid salts, particularly sodium or ammonium para-nonylphenoxyacetate are very suitable for use in the composition.  Salts of phenylmercaptoacetic acid and those having a structure:-R1-X-CH2COOY, in which R1 is an alkyl group, X is oxygen or sulphur and Y is as above, such as sodium tetradecyloxyacetate may also be used.  The anti-freeze agent in the I.C. engine coolant may be glycerol or a glycol such as ethylene glycol.  The cutting oil emulsion may contain lubricating oil and an emulsifying agent such as sodium dodecyl sulphate, "Teepol" or "Lissapol NK" (the words "Teepol" and "Lissapol" are Registered Trade Marks).
Patent GB-1209669-A (GB)
Title: New isoquinaldic acid derivatives, and processes for preparing them
Inventor: BERTIN DANIEL
IPC: C07D499/00
Filed: 1968-03-29
Abstract: 1,209,669. Isoquinaldic acid derivatives. ROUSSEL-UCLAF. 29 March, 1968 [29 March, 1967], No. 8261/70. Divided out of 1,209,668. Heading C2C. The methyl esters of dl-1,2,3,4-tetrahydroisoquinaldic acid, of dl-N-methyl-1,2,3,4-tetrahydroisoquinaldic and of dl-N-allyl-1,2,3,4- tetrahydroisoquinaldic acid are prepared by reacting methanol with the acid, methyl iodide with the methyl ester of the acid, and allyl bromide with the methyl ester of the acid respectively. dl-N-Methyl- and dl-N-allyl-1,2, 3,4-tetrahydro-isoquinaldic acid hydrochloride are prepared by hydrolysing the esters with sodium hydroxide and acidifying with hydrochloric acid. dl-N-Benzyloxycarbonyl-1,2,3,4- tetrahydro-isoquinaldic acid is prepared by reacting the acid with benzylchloroformate. 1 - ( - ) - N - Benzyl - 1,2,3,4 - tetrahydro - isoquinaldic acid is prepared by resolving the racemic compound with 1-( - )-α-phenylethylamine salt and preferentially crystallizing the enantiomeric salt.
Patent GB-782487-A (GB)
Title: Improvements in or relating to process for the recovery of glutamic acid
Filed: 1956-03-16
Abstract: Glutamic acid is obtained from thin barium filtrate by storing it at an elevated temperature until precursors of glutamic acid present therein (e.g. pyrrolidonecarboxylic acid) are substantially completely converted to glutamic acid, which is crystallized and separated from the resulting hydrolyzate.  The storage time is preferably 15 to 120 hours and the temperature is preferably 55-95 DEG  C.  The partially hydrolysed filtrate may be directly heated and concentrated to a dry substance content of between 40 and 80 per cent by weight prior to the crystallization step, or, if desired, the whole of the hydrolysis can be effected simultaneously during this heating step.  Concentration is preferably carried out by maintaining a reflux temperature.  The glutamic acid may be separated by neutralizing the hydrolysed barium filtrate (preferably after concentration) with a reagent forming an insoluble barium salt (e.g. sodium or potassium carbonate or bicarbonate, sulphuric acid or carbon dioxide), filtering off the insoluble barium salt, concentrating, and adjusting the pH either to 2.5-3.5 for crystallization of glutamic acid or strongly acidifying with hydrochloric acid for isolation of glutamic acid as the hydrochloride.  Alternatively, the glutamic acid may be separated by first precipitating the barium as an insoluble salt, filtering, reducing the pH to between 4.5 and 5.5 with sulphuric or hydrochloric acid, concentrating if desired to a dry substance content of between 40 and 85 per cent by weight, adjusting the pH to 3.2 and crystallizing the free acid.  The glutamic acid may also be isolated as the barium salt by concentrating the hydrolysate to between 60 and 80 per cent dry solids content, adjusting the pH to between 9 and 10.5 with hydrochloric acid, and adding sufficient methanol to precipitate the barium glutamate.  The latter may be dissolved in water, the barium precipitated with an agent forming an insoluble salt and the pH and concentration of the filtrate adjusted for crystallization of glutamic acid as such or as the hydrochloride.
Patent GB-1485832-A (GB)
Title: Package
IPC: A61J1/16
Filed: 1975-02-26
Abstract: 1485832 Packages FISONS Ltd 26 Feb 1975 [23 Feb 1974] 8316/74 Heading A5G [Also in Division B8] A pharmaceutical composition containing package comprises, in combination a pharmaceutically acceptable preservative-containing composition enclosed within a first inner container which is permeable over at least part of its surface area to the preservative, and a second outer container which encloses the first container or the part thereof permeable to the preservative, and which is impermeable to the preservative. The first container may be formed at least partly of high, medium or low density polyethylene, or of polypropylene or of polystyrene and the second container may be formed of one or more of: polyvinyl chloride; a metal; or a laminated metal, paper or plastics material, all in sheet form. Any one or more of the materials forming the second container may be coated or lacquered with a material which is impermeable to the preservative. In Figure 1 a polyethylene spray bottle 1 having a cap 2 is enclosed in a polyvinyl chloride blister 3 which is sealed by a peelable foil laminate 4.
Patent GB-797340-A (GB)
Title: Improved containers
IPC: F04B41/06
Filed: 1957-03-13
Abstract: 797,340. Portable containers; packaging. HAGEN, R., [trading as KAUTEX-WERK R. HAGEN]. March 13, 1957 [May 16, 1956], No. 8325/57. Classes 66 and 94(1). A plastics bottle or bag 10 with screw-threaded closure 11, after being filled and closed, is heatsealed as at 12 to reduce its volume. When filled with, for example, heated floor polish which shrinks after cooling, the " slack " of the package is taken up by this process. In a modification, Figs. 3 and 4 (not shown), a flat zone adjacent the bottom seam is heat-sealed. The heatsealing may be effected by highfrequency welding, when the package is made from polyvinyl chloride ; markings may be applied to the heatsealed zone.
Patent GB-759642-A (GB)
Title: Improvements relating to methods and apparatus for surface finishing
Inventor: SMEDLEY JOHN
IPC: B24B21/00
Filed: 1953-05-14
Abstract: 759,642. Abrasive band machines. ROLLS-ROYCE. Ltd. May 13, 1954 [May 14. 1953], No. 8378/54. Divided out of 759.600. Drawings to Specification. Class 60 Apparatus for surface finishing a turbine, compressor or like blade having a root platform or a tip platform or both, comprises support means including a workholder for a blade so that a flexible abrasive carrier may move in a predetermined path relative to the blade surface to be finished, and means to enable the angle between the path of the carrier and the spanwise axis of the blade to be adjusted. The apparatus is the same as that described in Specification 759,600.
Patent GB-287528-A (GB)
Title: Improvements in and relating to electric arc or other fusion welding
IPC: B23K9/14
Filed: 1928-03-20
Abstract: 287,528. British Thomson-Houston Co., Ltd., . (Assignees of Ipsen, C. L.). March 23, 1927, [Convention date]. Uniting by fusion.-The fusible weld rod or electrode of an apparatus for arc welding with a fusible metal, carbon, or tungsten electrode or for gas torch welding, is wet by a liquid which flows round the rod &c. and is subsequently vaporized or vaporized and dissociated by the arc &c. so as to improve the weld or maintain the arc. A liquid such as methanol may be used to provide a protective atmosphere of carbon monoxide and hydrogen about the arc and molten portions of the work as described in Specification 272,067. An electrode 1 is fed by rolls 6, 7 driven by gearing from motor 10 through a tube 8 into which passes a conduit 15 from a liquid container 12 mounted on the frame 11. The liquid is supplied to the electrode drop by drop by means of a valve controlled at 13, a window 14 being provided so that the rate of flow may be observed. A wick or wiper 16 may be inserted in the tube to assist in wetting the electrode. The container mav be secured to the tube and the liquid led to the electrode by one or more wicks 18 of asbestos which are wrapped round the electrode tucked under themselves and supported by an insulated washer 19. The wick may be stuffed into the tube about the electrode.