baber/WOPTO huggingface dataset:
Patent GB-1269743-A (GB)
Title: Improvements in or relating to the transference of carbon from one zone to another zone
IPC: G21C19/44
Filed: 1970-01-21
Abstract: 1,269,743. Reprocessing fuel elements. SNAM PROGETTI S.p.A. 21 Jan., 1970 [21 Jan., 1969], No. 3025/70. Heading G6R. [Also in Division C1] Carbon is separated from the active material, for example U, Pu or Th spheres, from a hightemperature gas-cooled reactor by reacting the carbon with a carrier fluid to form a fluid oxygenated or hydrogenated carbon compound and transferring the fluid to a second zone where the temperature and/or pressure is adjusted so as to deposit carbon and regenerate the carrier fluid, which may be recycled. The carrier fluid may be carbon dioxide, hydrogen or steam. A catalyst may be provided in the second zone, such as cobalt, platinum, nickel, iron, aluminium or magnesium.
Patent GB-977819-A (GB)
Title: New thiol phosphoric acid esters
IPC: H01R33/08
Filed: 1963-01-24
Abstract: The invention comprises compounds of formula <FORM:0977819/C1/1> where R is secondary alkyl, R1 is C1- 4 primary alkyl and R2 is unsubstituted or substituted alkyl or aralkyl.  They are prepared by reacting a phosphite (RO)(R1O)P(O)H with sulphur and an alkali to give the corresponding thiophosphoric acid salt which is then alkylated or aralkylated, e.g. with a halide or tosylate. Numerous examples are given in which R is isopropyl, sec-butyl or pinacolyl, R1 is methyl and R2 is ethylmercaptomethyl, ethylmercaptoethyl, cyanomethyl, cyanoethyl, p-chlorobenzyl, p-chlorophenylmercaptomethyl, N-methylcarbamoylmethyl, or 2-methylmercapto-5-methyl benzyl.  R2 may also be arylmercaptoalkyl, alkylaminoalkyl, alkoxycarbonylalkyl, alkylmercaptocarbonylalkyl or dialkylcarbamoylalkyl. The products are pesticides.  The ammonium salts of O-methyl-O-isopropyl, O-methyl-O-sec-butyl and O-methyl-O-pinacolyl thiophosphoric acids are prepared by reacting the corresponding secondary phosphites with sulphur and ammonia. Specification 685,737 is referred to.ALSO:Pesticidal compositions comprise thiophosphate esters of formula <FORM:0977819/A5-A6/1> where R is secondary alkyl, R1 is C1-4 primary alkyl and R2 is unsubstituted or substituted alkyl or aralkyl together with a solid or liquid carrier.  Numerous examples are given in which R is isopropyl, sec-butyl or pinacolyl, R1 is methyl and R2 is ethylmercaptomethyl, ethylmercaptoethyl, cyanomethyl, cyanoethyl, p-chlorobenzyl, p-chlorophenylmercaptomethyl, N-methylcarbamoylmethyl, or 2-methylmercapto - 5 - methylbenzyl.  R2 may also be arylmercaptoalkyl, alkylaminoalkyl, alkoxycarbonylalkyl, alkylmercaptocarbonyl-alkyl or dialkylcarbamoylalkyl.  Other insecticides and/or fertilizers may be present.  An emulsion containing a non-ionic emulsifying agent is specified. Specification 685,737 is referred to.
Patent GB-906218-A (GB)
Title: Purification of terephthalic acid
Inventor: MOELL HANS
Filed: 1961-01-26
Abstract: Terephthalic acid purified by recrystallisation from an organic solvent by dissolving the acid at 50-250 DEG C., cooling the solution and separating the precipitated acid, the solvent being a lactone containing 5-9 ring atoms, a nitrogen free cyclic ether containing 5-6 ring atoms or a nitrogen free substituted derivative thereof or a mixture of water and at least one of the aforementioned solvents. The purification is applicable to an acid obtained by any method, particularly to acid obtained by nitric acid or air oxidation of disubstituted benzenes.  Solvents p  mentioned are butyric, valeric, caproic and caprylic lactones and furans, pyrans, dioxans and their alkoxy, hydroxy and methyl substituted derivatives.  The preferred solvents are the aqueous mixtures containing approximately equimolar proportions.  The crude acid is preferably dissolved in about 15-40 parts by weight of solvent by heating to reflux, the hot solution treated with activated carbon and the purified acid precipitated, if necessary after concentration and addition of numeral acids. Examples are given.
Patent GB-1253831-A (GB)
Title: 9alpha,21-DIHALOPREGNANE COMPOUNDS
Inventor: ELKS JOSEPH
IPC: G02B7/22
Filed: 1968-01-19
Abstract: 1,253,831. Anti-inflammatory compositions. GLAXO LABORATORIES Ltd. 20 Jan., 1969 [19 Jan., 1968], No. 3100/68. Heading A5B. [Also in Division C2] Pharmaceutical compositions contain antiinflammatory steroids of the formula (wherein (a) X is #-OH, R<SP>1</SP> is F, Cl, Br or I R<SP>2</SP> is C 2-4  alkanoyl, R<SP>3</SP> is CH 3  or =CH 2 , Y is F or, when R<SP>2</SP> is C 2-3  alkanoyl, can also be Cl, and #<SP>1</SP> is optional; or (b) X is 0, R<SP>1</SP> and R<SP>2</SP> are as in (a), R<SP>3</SP> is CH 3  or, when R<SP>1</SP> is F, can also be =CH 2 , Y is F and #<SP>1</SP> is optional; or (c) R<SP>1</SP> is Y are F, R<SP>3</SP> is #-CH 3 , X is #-OH, R<SP>2</SP> is valeryl and #<SP>1</SP> is present) and suitable carriers or excipients. They may be in forms for topical or internal use and may contain anti-microbial agents, particularly antibiotics such as neomycin, and preservatives or bacteriostatic agents.
Patent GB-1414913-A (GB)
Title: Selaing connections
IPC: F16B4/00
Filed: 1973-01-22
Abstract: 1414913 Valves KLINGER AG 22 Jan 1973 [21 Jan 1972] 3120/73 Heading F2V [Also in Division B3]  A tubular valve seat 1 is sealingly connected in a body 6 by an unsplit clamping ring 8 which is radially expanded and permanently deformed into a groove 7 in a bore 9 of the body, the expansion simultaneously bending the end of the tubular slot into the groove. The seat may be clamped intermediate its ends so that the ring holds an annular portion against both walls of the groove.
Patent GB-1534306-A (GB)
Title: Magnetic recording/reproducing apparatus
IPC: G11B15/10
Filed: 1976-01-27
Abstract: 1534306 Cassette recorder I BAN 27 Jan 1976 [12 Feb 1975 16 April 1975] 3144/76 Heading G5R In a cassette tape recorder with operational mode control push buttons each associated with a mode changeover bar, a changeover bar is moved, on operation of its button by power obtained from the recorder capstan. Stop, play, rewind and fast feed buttons 41-44 are associated respectively with mode changeover bars 55-58. Each button, e.g. 44 (fast feed) has a downwardly extending rod 44b which passes through its bar 58 and when the button is pressed passes through an aperture in a plate 52, which is biased to the left by a spring (not shown) and rotates a member 63 out of latching engagement with the plate 52. The plate carries an eccentrically mounted idler wheel 47 which engages an extension 24c of the capstan when the plate 52 moves to the left on being unlatched and this engagement drives the plate to the right conveying with it the button, its rod and changeover bar 58. Movement of the bar 58 to the right moves locking bar 53 thereby releasing any other changeover bar and then bar 53 is itself locked in its operational position. On subsequent movement of the plate leftwards it is latched again in its initial position, the button having been returned by spring 44c to its upper but forward position. In moving to its operational position bar 58 moves slide member 61 to the right and so pivots plate 26 about its pivot axis against the action of a spring (not shown) so that heads 22, 27 and pinch roller 27 carried by the plate are moved out of engagement with the tape in cassette 96. At the same time switch 64 is operated disconnecting a governor for the motor so that fast feed mode of operation ensues. Operation is similar for button 43 (rewind) except that operation of switch 62a reverses the motor for rewind, for button 41 (stop) except that operation of swtches 62 and 65 (connected in parallel) switches off the recorder and for button 42 (play) except that slider 61 is not engaged so that the heads and pinch roller engage the tape and the motor is driven at a low governed speed. The tape reels in the cassette are driven by spindles 81, 81a from the recorder capstan pulley 24d via belt 31 and pulley 37, 38 39 mounted on a Y-shaped member 32 which itself is pivotally mounted on the recorder chassis at 32-1. Depending on the direction of rotation of the drive motor and hence of the capstan the difference in tension in runs 31a or 31b of the belt pivots the member 32 to move drive wheel 40 frictionally coupled to pulley 39 into engagement with wheel 20 driving spindle 81 or wheel 20a driving spindle 81a.
Patent GB-1048431-A (GB)
Title: Photographic enlarger system
IPC: G03B27/32
Filed: 1964-01-24
Abstract: 1,048,431. Photographic enlargers. J. W. RUSSELL. Jan. 24, 1964, No. 3158/64. Headings G2A and G2J. A photographic enlarger has a concave dichroic mirror behind the light source, and a system of condenser lenses some at least of which are coated so as to reduce reflection and act as a filter. As shown, the system is enclosed in a housing 10. The light source is a short arc HPMV lamp 12, mounted vertically, and positioned just in front of a concave reflector 11. The reflector is a quartz dichroic mirror, whose front surface is coated with alternative layers of magnesium fluoride and titanium dioxide. This transmits over 80% of the spectrum, including infra-red, and reflects only a narrow band of width about 1000 A.U. in the region around 3800 A.U. (The apparatus is intended principally for use with diazo printing papers, which are most sensitive in this region). Accordingly no auxiliary cooling means are necessary beyond the provision of ventilating openings 35 at the rear of the housing. The condenser system comprises a series of lenses 13, 14,15,16, preferably with curvatures as specified. These are preferably of quartz, and coated with magnesium fluoride to an optical thickness of “ wave length at 3800 A.U. to reduce reflection. Two filters 17,18 are built into the condenser lens system, 18 being an infra-red absorbing filter and 17 a cobalt blue filter for absorbing unrequired parts of the visible spectrum. The filters may be coated similarly to the lenses. The film 33 is mounted in a holder 24, and behind this is a shutter strip 22. As shown in Fig. 4, this comprises three sections, section 25 being opaque, section 26 a filter transmitting as far as possible only ultra-violet light, and section 27 a filter similar to either filter 17, 18 if these are not already provided. Instead of being in line, these three sections may be made as sectors of a disc (Fig. 5, not shown). The objective lens 20 may be a suitable commercial type, and instead of being coaxial with the condenser system, as in Fig. 3, may be at right angles thereto (Fig. 6, not shown). Lens 20 is carried on a support 38, and the shutter 22 and film 33 on a further support 19, the supports being interconnected by bellows 36, 37, and movable along a frame 39 for focusing adjustment. When an exposure is to be made, the opaque section 25 is brought into the light path while the film 33 is placed in position. Then section 26 is moved into the light path while a trial projection of the image is made on an inspection screen 32 of fluorescent or diazo material and the focus adjusted. The opaque section is moved back into the light path while an unexposed sheet is placed in position at 32, and then the third section moved into the light path while the actual exposure is made.
Patent GB-947631-A (GB)
Title: A process for the elution of anions from anion-exchange resin
Inventor: FRANCIS BERNARD JOHN
IPC: C01C3/11
Filed: 1960-01-28
Abstract: Complex metallo-cyanides, particularly those of silver and gold, are eluted from an ion exchange resin with a solution of an organic polar solvent, miscible with water, and from 0.25 to 20% wt./volume of an inorganic salt soluble in the organic solvent.  The solution may also contain up to 20% by weight of water. The salts used are potassium thiocyanate, ammonium chloride, or potassium cyanide, and the organic solvents quoted are acetone, methyl alcohol, ethyl alcohol, and aliphatic esters. Reference is made to the use of three different resins, all based on polystyrene treated with tri-n-butylamine, di-n-butylamine, and methylamine respectively. The process may also be used for the elution of copper, nickel and iron. Specifications 727,582, 808,909 and 947,632 are referred to.
Patent GB-289954-A (GB)
Title: Improvements in machines for expressing liquids from solids
IPC: B30B9/20
Filed: 1927-02-04
Abstract: 289,954. Dunlop, H. J. L., and Sibbald, A. J. Feb. 4, 1927. Extrusion presses.-Solid matter is forced through a rotating annular chamber, having outlet ducts for expressed liquid, by a pressure member rotating on an axis inclined to the axis of the chamber. An annular chamber. formed between an outer perforated wall H, Figs. 1 and 2, and an inner wall G, is divided into sectors by radial partitions h<1> and the whole rotates on a shaft A. The sectors O are made to taper toward the outlet end O<1> by conical segments K which are dovetailed to engage with the wall G and can be adjusted longitudinally to vary the outlet O<1> by means of an abutment k<2> screwing on the frame standard B. The longitudinal thrust on the shaft A, which carries a driving-wheel D, is taken by means of a nut F and ball bearings E against the frame standard C at the other end. A pressure member P is mounted with ball bearings R, S on the standard C at an inclination to the vertical, the pressure surface p<2> being conical and carried by an extension p<3> of the member. The material under treatment, such as ground palm kernels, is supplied by a hopper T and forced into the sectorshaped chambers O by the pressure member. The pressure member, as shown, is rotated by friction, though it may be positively driven. The part G may be hollow and receive steam, for heating, through a bore a<3> and radial holes a<4> in the shaft A, condensed steam being discharged through holes a<5> and a bore a<6> at the other end. Fig. 6 shows in cross-section an alternative construction in which the outer wall H is formed of longitudinal bars H<1> supported in a series of discs M. The discs are each in two parts, hinged and bolted together. The conical parts K may engage the inside of the outer wall H, or, where adjustment is not necessary, may be integral with either the inner wall G or the outer wall H.
Patent GB-716636-A (GB)
Title: Improvements in tone generators
Inventor: JONES HAROLD HOSGOOD
IPC: H02K21/48
Filed: 1952-02-06
Abstract: 716,636. Permanent magnet generators. JONES & CO. (ENGINEERS), Ltd., W. Jan. 22, 1953 [Feb. 6, 1952], No. 3181/52: Class 35 A tone generator comprises an assembly of stator laminated cores 3-8 carrying wiridings 25-30 respectively to provide the desired tones and a rotor comprising a pair of soft iron circular poles 12 which carry laminated cores 16-21 and which enclose a permanent magnet 11 magnetized in the direction of the axis. The poles 12 which are mounted on a non-ferrous hub 10 are separated by a gap 14. The rotor cores 16-21 are separated from one another by members 22 of non-magnetic material. The windings 25 and 30, 26 and 29, 27 and 28 provide dialling, ringing and busy tones respectively. Each rotor core 16, 21 has two narrow salient poles 31; the stator core 4 has 48 teeth and its corresponding rotor core 17 has 24 teeth. The other stator core 7 has 50 teeth and its corresponding rotor core 20 has 25 teeth. The central stator cores 5, 6 have 48 slots and the corresponding rotor cores 18, 19 have 24 teeth each. Adjustment of the tone loudness is made by bringing out tappings (say 3) from sections of the winding so that these sections can be connected in a member of series-parallel connections to give various maximumloudness.
Patent GB-108433-A (GB)
Title: Improvements in or relating to Graining Mechanism for Printing Surfaces.
IPC: B41N3/04
Filed: 1917-03-05
Abstract: 108,433. Goss Printing Press Co., (Goss Printing Press Co.). March 5, 1917. Abrading-medium, article moved in contact with.-Consists of apparatus for graining the surface of a curved zinc or aluminium printing-plate. The plate 19 is secured on a curved bed 18 arranged to be rocked on the shaft 16, and the marbles, or other graining medium, are carried in an open-bottom tray 32 to and fro across the surface of the plate. The shaft is rocked by gearing 20, 21, lever 23, and link 24 from a crank 25 driven by a motor 2'7. A cam 43 on the shaft, by means of levers 41, 39 and a link 44, serves to impart movement to the tray, which is guided on rods 30 carried by frames 28, 29 mounted on the shaft 16. Normally these frames are held stationary, but they may be freed and turned sideways to discharge the contents of the trays.
Patent GB-650561-A (GB)
Title: Improvements in and relating to the preparation of quaternary derivatives of phenanthridines
Inventor: WALLS LESLIE PERCY
IPC: C07D221/12
Filed: 1948-02-04
Abstract: Phenanthridinium salts of the formula <FORM:0650561/IV (b)/1> where R is methyl, ethyl or n-propyl, R1 is amino or nitro in the m- or p-position and X-is an anion such as methylsulphate, chloride or iodide, are obtained by ring-closing amides of the formula <FORM:0650561/IV (b)/2> where R is as above and R2 is nitro or carbalkoxyamino in the m- or p-position by heating with a pentavalent phosphorus compound (e.g. the oxychloride), quaternating the resulting phenanthridine and, if R1 is amino, reducing or hydrolysing R2.  Alternatively, the alkoxy-phenanthridines may be obtained by alkylation of the corresponding hydroxy compounds and then quaternated as above.  Examples are given of the above reactions and the conversion of the methylsulphates into chlorides; in addition, it is stated that 10-methyl - 7 - methoxy - 9 - (p - carbethoxyaminophenyl)-phenanthridinium chloride may be made from the corresponding p-amino-phenyl compound and ethyl chloroformate. Benzamido-diphenyls are made from 2-amino-41-alkoxy-diphenyls and substituted benzoyl chlorides.  The preparation of the following is described: 2-m- and p-nitrobenzamido-41 - ethoxy - diphenyl and 2-p-carbethoxyamino - benzamido - 41 - methoxy - diphenyl.  2 - Amino - 41 - ethoxy - diphenyl is obtained by reduction of the corresponding nitro compound, made by ethylation of 2-nitro-41-hydroxy-diphenyl.  7 - Hydroxy - 9 - p - nitrophenyl - phenanthridine is made by heating the 7-methoxy compound with hydrochloric acid.  p - Carbethoxyamino - benzoyl chloride is prepared by treating the acid with thionyl chloride.  The Provisional Specification refers to phenanthridine compounds containing an alkoxy group in one of the diphenyl rings and a substituted aryl or aralkyl group in the 9-position.  The compounds are made by the same series of reactions as given above. Further examples show the preparation of 2-(p-nitro-phenyl-acetamido) - 4 - methoxy - diphenyl, ring closure to 7-methoxy-9-p-nitrobenzyl-7-methoxy-phenanthridine, conversion to the methochloride and reduction to the 9-p-aminobenzyl compound. Specifications 372,859, 511,353, 578,226 and 587,673 are referred to.
Patent GB-1137065-A (GB)
Title: Improvements in or relating to the manufacture of ammonia
Inventor: TWIST DENNIS RICHARD
IPC: C01B3/02
Filed: 1965-01-26
Abstract: 1,137,065. Ammonia. HUMPHREYS & GLASGOW Ltd. 18 Jan., 1966 [26 Jan., 1965; 9 April, 19651, Nos. 3414/65 and 15275/65. Heading C1A. [Also in Division B1] In the catalytic synthesis of NH 3 , the mixture of H 2  and N 2  is partially purified from inert gaseous components such as CH 4  and argon by dissolving at least part of the mixture under pressure in liquid ammonia, additional NH 3  being introduced for this purpose, and thereafter cooling the liquid NH 3  so as to release a proportion of the dissolved gases for use in the synthesis reaction whereby the proportion of the inert impurities in the H 2 /N 2  mixture is reduced. Preferably after the liquid NH 3  is cooled it is subjected to a reduction of pressure to release a further proportion of dissolved gases from solution. The liquid ammonia used for dissolving the gaseous mixture may be at a temperature of 65-74‹ C. Preferably the H 2 /N 2  mixture is derived in part from the gases leaving the converter and is washed under pressure with liquid NH 3  drawn from the product of the converter in an absorber. The gases released from solution in liquid NH 3  may be subjected to a second washing with liquid NH 3  and then recycled to the converter. The liquid NH 3  when freed of dissolved gases may be returned to the product stream before the initial separation of the liquid and gaseous components and before the heat exchangers for cooling the converter product.
Patent GB-1139780-A (GB)
Title: Semiconductor elements
Inventor: GLASS WILLIAM BRIAN
IPC: H01L21/00
Filed: 1967-01-24
Abstract: 1,139,780. Semi-conductor device. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. 3 Jan., 1968 [24 Jan., 1967], No. 3530/67. Heading H1K. A semi-conductor device 1 comprises a body 3 of one conductivity type and of low resistivity in which there are a plurality of regions 4 of the opposite conductivity type and of high resistivity. The regions 4 are all connected in parallel by means of a contact 5 comprising a common terminal 6 and contacts 7 to each of the regions. The device is of planar form, all the regions 4 being formed in one face of the body and covering 40% to 80% of that face. Each region 4 is circular in plan and has an area of between 0À01 sq. cm. and 0À15 sq. cm., their density being 5 to 50 regions per sq. cm.
Patent GB-493256-A (GB)
Title: Improvements in or relating to two speed gear mechanisms for actuating tuning devices in radio receivers and other tunable electric apparatus
IPC: H03J1/14
Filed: 1938-02-04
Abstract: 493,256. Adjusting wireless apparatus; shaft couplings. STANDARD TELEPHONES & CABLES, Ltd. Feb. 4, 1938, No. 3576. Convention date, April 7, 1937. [Class 37] [Also in Group XXIV] A two-speed gear mechanism for tunable electric apparatus comprises driving and driven members connected through reduction gear, one or more members being interposed between the driving and driven members and being successively entrained by the driving member through more than one complete revolution. In Fig. 1, the driving member 1 includes a flywheel 2 and has a pin 3 which engages a lug on the first of a series of discs 4, the discs in turn engaging radial projections on sleeves 5 until the last disc abuts against a pin 6 on the driven member 7. In Fig. 7, the rotation through more than one complete revolution is effected by a sliding nut 9, the driving and driven members 1, 7 being concentric, and guides 10 preventing rotation of the nut relative to the member 7. Stops 11, 12 limit the number of revolutions before a direct drive occurs.
Patent GB-548302-A (GB)
Title: Improvements in mountings for guns, searchlights and similar directional elements
IPC: F41A27/08
Filed: 1941-03-17
Abstract: 548,302. Searchlight mountings. SMALLWOOD, P. March 17, 1941. No. 3604. [Class 75 (iii)] [Also in Group XXI] Guns, searchlights and other projectors are directed by a combined elevating and training movement, the projector being mounted for elevation on a planet wheel which meshes during training with a sun-wheel and pure training being effected by bodily rotation of the sun and planet wheels about the axis of the sun-wheel. In the form shown, two machine guns 16 are for elevation geared by planetary-pinions 15 on shafts 14 to a sun-wheel 8 fixed to a shaft 7 upstanding from a platform 3. The gun trunnions are carried by a frame 12 on a turntable 9 rotatable with respect to the platform 3 on a roller race 10, this rotation causing automatic elevation of the guns through the medium of the sun-and-planet gears. The platform 3 is mounted for bodily rotation on a roller race 23 and for tilting on a transverse axis by gearing 5, 4: Pointers, movable over graduated arcs, indicate the angular movements about the various axes. The application of the invention to a battery of four guns is also described.