baber/WOPTO huggingface dataset:
Patent GB-826719-A (GB)
Title: Glass melting tank
IPC: C03B5/05
Filed: 1957-12-12
Abstract: 826,719. Glass-melting furnaces. PITTSBURGH PLATE GLASS CO. Dec. 12, 1957 [Dec. 20, 1956], No. 38639/57. Classes 51 (1) and 51 (2). A glass-melting furnace 10 of the regeneratively-heated tank type comprises charging openings 51 in the rear wall, a discharge opening in the front wall feeding rollers 20, 21 which discharge the glass over a rollerway conveyer 12 into a lehr 13, and extended burner ports 55 in the side walls, the furnace being adapted to be tilted about the axis of the lower discharge roll 20 by hydraulic rams 37 having pivoted links 32 engaging the ends of longitudinal beams 24 supporting said furnace. Each ram piston rod 36 has a shoe 35 engaging vertical I-beams 33 forming a track therefor. The burner ports 55 are formed with lateral-angled openings 55<SP>1</SP> carrying burners 58<SP>1</SP> supplied from a fuel header 80 through pipes 61<SP>1</SP>. Auxiliary burners 59<SP>1</SP> disposed on each side of the ports 55 and supplied from the header 80 through flexible pipes 591<SP>1</SP> are used when the furnace is tilted. The reversible regenerative system comprises a pressure air housing 85 below the chimney housing 92 and conduits 86 and 91 leading respectively to housings 87 and 90 packed with chequer brickwork having ducts 88 and 89 associated with the burner ports 55. The rollers 20, 21 are driven by chain and sprocket gearing, Figs. 9-11 (not shown), roller 21 being spring pressed to minimize damage from solid material, e.g. pieces of cullet. The furnace has a base plate 38 supported on beams 28 laid across the longitudinal beams 24 and carrying vertical side beams 42 interconnected by tie rods 58 and corner end posts 43 interconnected by tie rods 57, providing a skeleton support for refractory blocks forming the walls, roof and hearth. In a modification, Figs. 12-14 (not shown), the furnace has a platform mounted on segmental rockers carried on rollers, and is tilted by an hydraulic ram engaging the rear of the platform.
Patent GB-982805-A (GB)
Title: Improvements in or relating to the manufacture of polymeric materials
Inventor: GUDGEON HERBERT
IPC: C08G65/28
Filed: 1962-10-12
Abstract: The preparation of polyethers from primary and secondary amino derivatives of carbohydrates and compounds containing at least one 1,2 epoxy group, in the presence of a catalyst is characterized by reacting the epoxide with a solution of the carbohydrate derivative in water to the stage where the reaction products of epoxide and water are still removable by distillation, removing the latter products by distillation and further reacting the reaction product of polyhydric compound and epoxide with more epoxide.  Specified amino derivatives of carbohydrates are glucamine, glucosamine and glucosaminol and their N-alkyl and N-aryl derivatives. Particularly suitable 1,2-epoxides are propylene oxide and butylene oxides. Mixtures of epoxides may be used.  Suitable temperatures are 50 DEG to 150 DEG  C. and pressures of up to 80 p.s.i. may be used. Alkaline catalysts are preferred, e.g. hydroxides, carbonates and amines.  The Example described the preparation of an oxypropylated N-methyl glucamine.ALSO:The preparation of polyethers from primary and secondary amino derivatives of carbohydrates and compounds containing at least one 1,2-epoxy group, in the presence of a catalyst, is characterized by reacting the epoxide with a solution of the carbohydrate derivative in water to the stage where the reaction product is liquid at temperatures above 90 DEG  C. and the reaction products of epoxide and water are still removable by distillation, removing the latter products together with excess water by distillation and further reacting the reaction product of polyhydric compound and epoxide with more epoxide.  Specified amino-derivatives of carbohydrates are glucamine, glucosamine and glucosaminol and their N-alkyl and N-aryl derivatives. Particularly suitable 1,2-epoxides are propylene oxide and butylene oxides.  Mixtures of epoxides may be used.  Suitable temperatures are 50 DEG  to 150 DEG C. and pressures of up to 80 p.s.i. may be used.  Alkaline catalysts are preferred, e.g. hydroxides, carbonates and amines.  The example describes the preparation of an oxypropylated N-methyl glucamine. The hydroxylended polyethers of the process are highly reactive towards isocyanates and are used to prepare cellular or non-cellular polyurethanes by reacting with polyisocyanates in the presence, as necessary, of other agents such as water and inert liquids of low boiling-point.
Patent GB-1031086-A (GB)
Title: Compatible crosslinking agents for siloxanes
IPC: C07F7/18
Filed: 1964-09-24
Abstract: The invention comprises fluoro silicon compounds of the formula <FORM:1031086/C3/1> where Q is hydrogen, hydroxy or alkoxy, R is a perfluoroalkyl radical containing 1-8 carbon atoms, R1 is a monovalent hydrocarbon radical containing 1-6 carbon atoms or a -CH2CH2R radical, there being not more than one of the latter attached to any one silicon atom, and a is 1-3. Compounds wherein Q is hydrogen are prepared by reacting RCH2CH2SiCl3 and R12SiHCl in the presence of water and a solvent such as toluene.  These compounds are reacted with alcohols in the presence of chloroplatinic acid to give compounds, wherein Q is alkoxy, or with water in the presence of palladium to give compounds, wherein Cl is hydroxy. In examples, R1 is C8F17CH2CH2-, CH3-, CF3CH2CH2-, CH2=CH(CH2)4-, C6H5, hexyl, cyclohexyl and (CH3)2CH-.  These compounds are useful as cross-linking and chain branching agents for siloxane polymers and copolymers.  Compounds wherein Q is hydroxy are condensed with each other to form homopolymers.
Patent GB-934304-A (GB)
Title: Improvements relating to determining the protein content of solid matter
IPC: G01N33/02
Filed: 1961-11-01
Abstract: <PICT:0934304/III/1> <PICT:0934304/III/2> <PICT:0934304/III/3> Material which contains protein to be analysed is first comminuted in a mill with cutting vanes 6, and then a predetermined quantity is kneaded to react with a colour-producing substance by the roller 14. The sample can be removed by means of the detachable plate 12 and analysed by known colorimetric methods.  A special filter cover 18 which replaces plate 12 can be used to filter the material after kneading before colorimetric analysis.
Patent GB-1323015-A (GB)
Title: Derivatives of digitoxigenin
IPC: C07J19/00
Filed: 1971-08-23
Abstract: 1323015 Digitoxigenin derivatives BECTON DICKINSON & CO 23 Aug 1971 [24 May 1971] 39427/71 Heading C2U The invention comprises compounds of formulµ wherein Y is succinyl, maleoyl, fumaroyl or phthaloyl and X is one of the following aminoacid radicals: wherein the aminoacid radical may be unlabelled or radiolabelled, preferably radioiodinated with one or two radioiodine atoms (e.g. <SP>125</SP>I or <SP>131</SP>I), the probable positions thereof being indicated by asterisks. Preparation of compounds (I) is by reaction of digitoxigenin with an appropriate anhydride to give the 3-hemisuccinate, 3-hemimaleate or 3-hemiphthalate which is then reacted with pivaloyl chloride, ethyl chloroformate or isobutyl chloroformate to give a mixed anhydride and the latter is reacted either with an appropriate aminoacid to give the desired product or with an aminoacid C 1-6  alkyl ester to give an alkyl ester of the desired product which is subjected to base hydrolysis to give the free acid. The compounds wherein Y is fumaroyl are prepared by isomerization of the compounds, wherein Y is maleoyl. Radioiodination may be effected by known methods.
Patent GB-1396968-A (GB)
Title: Photographic direct positive silver halide material
IPC: G03C8/00
Filed: 1972-08-24
Abstract: 1396968 Photographic direct-positive silver halide material EASTMAN KODAK CO 24 Aug 1972 [24 Aug 1971] 39429/72 Heading G2C A photo-sensitive element comprises a support and at least one direct-positive silver halide emulsion layer having associated therewith a non- diffusible coupler capable of reacting with oxidized aromatic primary amino colour developing agent to produce a diffusible dye, the element containing a 2-substituted aminomethyl -5-alkylhydroquinone or a salt thereof. The hydroquinone accelerates development. The element may contain red-, green- and blue-sensitive silver halide emulsion layers having associated therewith cyan, magenta and yellow couplers respectively. The silver halide emulsion layers may contain these couplers and be separated from one another by alkaline solution-permeable interlayers each containing an oxidized colour developing agent scavenger. The substituted hydroquinone may be present in the silver halide emulsion layer(s) or a layer contiguous thereto, and may have the formula:- wherein R 1  and R 2  are each H, alkyl, substituted alkyl, cycloalkyl, alkenyl, aryl or substituted aryl or together with the N atom to which they are attached, complete a heterocyclic ring; and R3 is optionally substituted alkyl. The diffusible dye may be received by a dye image-receiving element containing a pH- lowering layer of polyacrylic acid (see Example 1). A photographic film unit comprises a photosensitive element as defined above, a dye imagereceiving layer and a rupturable container which contains an alkaline processing composition and which is positioned so that when a compressive force is applied to the container its contents are discharged into contact with the silver halide emulsion layer within the film unit, the film unit containing an aromatic primary amino colour developing agent.
Patent GB-814216-A (GB)
Title: Improved device for charging a powder layer
Inventor: RABL RICHARD
IPC: B65G47/00
Filed: 1956-12-28
Abstract: 814,216. Hoppers. JUNGFER, L., [trading as AKKUMULATORENFABRIK Dr. L. JUNGFER]. Dec. 28, 1956, No. 39538/56. Class 78 (1). Hopper 1 (Fig. 1), feeds a layer of plastic powder on to supports 3 for manufacture by sintering into porous separator plates for accumulators, a hollow body 5 being pivoted at 7 and supported by bar 8 resting on stationary guides 4 to provide an adjustable scraper 9 for determining the level of the said layer and to ensure the uniformity of the said level by avoiding bridging. Fig. 9. The hollow body 5, pivoted at 7, is formed with curved scraper 25 pivoted at 30 and adjustable at 26, and includes a second hollow body 21 pivoted at 20 to body 5 and carrying a second scraper 22 so that the layer of material is scraped twice to attain greater uniformity. The heap H of material may be agitated by vibrating rakes.
Patent GB-1272954-A (GB)
Title: Method of hydrogen manufacture
Inventor: BEAVON DAVID KENT
IPC: C01B3/52
Filed: 1969-08-07
Abstract: 1,272,954. Separating gases. RALPH M. PARSONS CO. 7 Aug., 1969, No. 39614/69. Heading B1L. [Also in Division C5] Hydrogen is obtained at an elevated pressure by converting a hydrocarbon feed material, e.g. by steam reforming or partial oxidation in reactor 20, to hydrogen by a method which includes a water gas shift, e.g. in reactor 22, to give a stream which includes primarily hydrogen and CO 2  and then compressing this mixture in at least one centrifugal compressor 12 from the production pressure of the stream to an elevated pressure and then introducing the compressed stream into a CO 2  absorber 14 at this pressure to separate the CO 2  from the hydrogen. The CO 2  is preferably separated from the hydrogen using a physical solvent, e.g. water, N-methyl-2 pyrrolidone, and sulfolane. The solubility of CO 2  in this solvent may increase with the pressure, and the CO 2 /solvent solution may be removed from the separator 14, as a stream, the pressure on this removed stream reduced to release CO 2  which is separated from the solvent which is then recycled back to the absorber 14. In the preferred embodiment the CO 2  is removed from the solvent/CO 2  stream 46, in a series of stages in separators 50, 58 and 76, and a portion of the purified solvent is separated at an intermediate stage as a recycle stream 66, the remainder being set on via 64 to a further final separation stage 76. In this final stage the pressure may be atmospheric or below, and before entering the final stage the CO 2 / solvent mix may be heated, e.g. in an exchanger 72 to decrease the solubility of the residual CO 2 . The pressure during the separation may be from 1500-3500 psig. In the stream reforming step the pressure may be 200-500 psig. Apparatus adapted to perform this process and comprising the requisite convential equipment integers is also claimed.
Patent GB-1479466-A (GB)
Title: Display device for colour television
IPC: H01J29/70
Filed: 1974-09-11
Abstract: 1479466 Colour television tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 11 Sept 1974 [14 Sept 1973] 39670/74 Heading H1D In a colour television tube with three guns 23, 25, 27 arranged horizontally and seen in side view 5, and with vertically striped shadow mask 7 and phosphor screen 9, correction of colour purity by a vertical magnetic field is provided, in addition to ring pairs 15, 17 with respective four and six pole permanent magnetization for convergence correction, by permanently diametrically magnetized ring pair 19 adjustable angularly but constrained by mechanism to move oppositely through equal angles, the resultant field remaining vertical though variable in magnitude. A second pair of rings 21 provides a horizontal field adjustable in magnitude to correct unwanted vertical deflection of the three beams. One possible mechanism linking the rings of pair 19 comprises fixed sleeve 29 round the tube neck 1, carrying all the rings, with holder 31 slid over the sleeve and locked to it by lug 35 in recess 33. Annular ridge 37, with pinion 41 rotating within a gap in the ridge, carries magnetized rings 43 and 47 within and without the ridge, toothed to engage pinion 41 to force the rings to rotate through equal and opposite angles. The two North poles N are set to coincide on the normal to the gun plane. The second pair of rings 21 are mounted in similar manner with their North poles set to coincide on the gun plane.
Patent GB-1234901-A (GB)
Title: 0-(1-substituted-3-pyrrolidinyl)-3-arylsulphonylureas
IPC: C07D207/14
Filed: 1969-08-08
Abstract: 1,234,901. Sulphonylureas. A. H. ROBINS CO. Inc. 8 Aug., 1969 [12 Aug., 1968], No. 39737/69. Heading C2C. Novel compounds I where R is C 1-8  alkyl, C 3-9  cycloalkyl (including alkyl substituted, e.g. methylcyclohexyl, propylcyclopentyl) or optionally substituted phenyl and R<SP>1</SP> is H, halogen or C 1-8  alkyl, are obtained by reacting an appropriate 3-amino pyrrolidine with R<SP>1</SP>.C 6 H 4 .SO 2 .NH.CONH 2 . Pharmaceutical preparations exhibiting hypoglycemic activity contain I as active ingredient; administration is, e.g., orally.
Patent GB-1510646-A (GB)
Title: Synthesizer of multifrequency code signals for a keyboard type telephone station
IPC: H03K3/80
Filed: 1975-09-30
Abstract: 1510646 Digital waveform generators B ROCHE J MAJOS and J-L LARDY 30 Sept 1975 [30 Sept 1974] 40018/75 Heading H3H [Also in Division G4] In piece-wise generation of a waveform comprising a plurality of simultaneous sinusoidal waveforms each of different frequency an integral multiple i 1 , i 2  &c. of a common fundamental frequency, a read-only memory 40 storing samples of equidistributed angular-argument values between 0 and <SP>#</SP>/ 2  radians, is addressed sequentially at a predetermined rate to read out every i 1 th, i 2 th &c. sample, complementing 30 and inversion logic 32, 44 providing the 2nd, 3rd and 4th quadrants. In Fig. 3, a telephone keyboard 10 has 12 keys selecting respective lines to a coder 11 producing a 4-bit output to a memory 20 which outputs a selected pair of 6-bit multipliers i 1 , i 2 . These are serialized in a shift register 21 with an extra pair of 0s added to each to prevent them becoming mixed in the accumulation stage which follows. Multiples 2i 1 , 2i 2 , 3i 1 , 3i 2  &c. are generated by recycling through a second shift register 22 and an adder 23. A saving of 1 bit on the length of the words stored in the memory 40 is achieved by coding the <SP>#</SP>/ 2  sample as q 0s (the (q+1)th bit-a1-being omitted) a 1scomplementing circuit 41, responding to <SP>#</SP>/ 2  detector 34, inverting every bit of the memory output signal from its <SP>#</SP>/ 2  address. The stored samples may represent the amplitude relative to the tangent to the negative peaks of the sine wave.
Patent GB-1478877-A (GB)
Title: Cockroach trap
IPC: A01M1/14
Filed: 1974-09-16
Abstract: 1478877 Cockroach trap DAINLPPON JOCHUGIKU KK 16 Sept 1974 [24 Sept 1973 30 Nov 1973] 40223/74 Heading A1M A cockroach trap comprises a base, sidewalls, apertures 2 in these walls each aperture having sides forming a vertex (# = 30-60) directed downwards, a layer of adhesive- 3 spread over the base and a lure 4. The apertures may be truncated with distance a less than 5 mm, and the distance b from apertures to adhesive 3 should be less than 10 mm. The adhesive may be provided on a replaceable sheet of closed-cell synthetic resin having a roughened surface and covered with a protective sheet to be removed before use. A modified trap comprises a body in the shape of an isoceles triangular prism where each inclined side wall 12 overhangs at 16 each perpendicular end wall 11.
Patent GB-945262-A (GB)
Title: Improvements in welding apparatus
Inventor: COOPER THOMAS HENRY
IPC: B23K9/028
Filed: 1960-11-23
Abstract: 945,262. Welding by fusion. PALMER AERO PRODUCTS Ltd. Nov. 21, 1961 [Nov. 23, 1960], No. 40309/60. Heading B3R. [Also in Division F2] External peripheral welds around abutting workpieces are made by rotating a gas-shielded arc-welding torch about the workpieces while they are held in a fixed work-holder. The torch 44 is mounted on a table 16 attached to a sleeve 15 rotatable in bearings 17, 18 in the machine frame 9 by a motor 24. Argon inlet 50 and water inlet and outlets 51, 52 lead to annular passages 61 separated by seals 72 and communicating with individual passages 61 in the sleeve 15 terminating in unions 67 connected to the torch 44. A slip ring 78 in the table 16 and connected to the torch 44 cooperates with a brush 59 connected to the welding supply. The lower pipe 35 to be welded is held in a chuck 27 secured on a non- rotatable shaft 26 passing through the sleeve 15 and mounted in the frame 9 so as to be axially adjustable. The upper pipe 34 to be welded fits in a recess in the lower pipe 35 which is provided with a rectangular or tapered annular rib 86 to provide welding metal. The upper pipe 34 is centred and held by clamps attached to arms 37, 38 mounted on the frame 9 and the chuck 27 may be spring- loaded to urge the pipes 34, 35 into abutment. The joint may be surrounded by a muff 90, Fig. 6, fixed to the table 9, having a gap to provide access for the torch 44 and a groove 91 having a covering of fine mesh 94 and communicating with an argon inlet 92. Gas such as argon with, up to 2 % nitrogen, helium or hydrogen is passed through a pipe 84 located within the shaft 26. The end of the pipe 84 adjacent the seam is perforated or provided with a diffuser in the form of a sintered plug. In operation, the shielding gas and water are switched and a gas pressure switch actuates a timer to time the duration of the initial gas purge. The timer starts the motor 24 and the table 16 rotates. A switch 101 actuated by a cam on the table operates a high-frequency starting circuit and the arc strikes. The duration of welding is determined by a timer and extends for about 720 degrees of table rotation whereupon the welding current is reduced to fill the crater, and the gas flow is maintained for a predetermined time.
Patent GB-967296-A (GB)
Title: Improvements in or relating to chair fittings
Inventor: FOX MARTIN
IPC: A47C3/18
Filed: 1961-11-10
Abstract: 967,296. Revolving seats. SENG CO. Nov. 10, 1961, No. 40316/61. Heading A4J. A chair fitting 15 (Fig. 2) comprises as an upper plate 19 securable to a seat structure 17 and a lower plate 18 securable to a chain base 16, the plates being connected together by pivot means 24 which permit relative rotation between the plates 18, 19, means such as ball bearings 22 in load-bearing engagement with the plates 18, 19, a spring 25 retaining the plates in a pre-set angular direction and urging the plates towards this direction upon relative rotation of the plates in either direction therefrom, a lug 28, 29 on the plates 18, 19 respectively, each lug engaging an opposite end 27 of the spring 25 upon relative rotation of the plates 18, 19 from the pre-set direction to stress the spring, and circumferentially spaced stop fingers 30 on the plate 18 for limiting relative rotation of the plates from the preset direction. The plates 18, 19 in the region of the pivot 24 each have an inwardly extending boss 18a, 19a encircled by a convoluted portion 26 of the spring 25. The ball bearings 22 are housed in a ball race formed by grooves 20, 21 in the plates 18, 19 respectively and are spaced apart by link bars 23.
Patent GB-880869-A (GB)
Title: Adjustable chairs
Inventor: FLETCHER PETER STEWART
IPC: A47C1/034
Filed: 1958-12-16
Abstract: 880,869. Reclining chairs. LORENZ, A. Dec. 16, 1958, No. 40593/58. Class 52(2) The leg rest of a reclining chair has main and auxiliary sections 10, 11 carried by a lazy-tongs or like linkage actuated by a link 30 from the pivoted seat and back structure 5, 6. When stowed the main section 10 lies vertically under the front edge of the seat 5 while the auxiliary section 11 lies below the seat and substantially parallel thereto. The erecting linkage may be carried by the supporting frame 1 or by the seat and the latter need not be integral with the back.
Patent GB-1275782-A (GB)
Title: Improvements in multi-head bar-twisting machines
IPC: B21D11/15
Filed: 1969-08-14
Abstract: 1275782 Twisting RHODEN PARTNERS Ltd 12 Nov 1970 [14 Aug 1969] 40786/69 Heading B3E [Also in Division B8] A multi head bar twisting machine comprises two or more bar twisting units 31, 32, 33 and 34 located one above the other, a vertical conveyer 25 adapted to be supplied with untwisted bars and serving to convey them in uniformly spaced parallel relationship and at right angles to their length along a vertical path located on one side of the bar twisting units. Walkways 14, 15 (Fig. 1, not shown) for machine operators are provided alongside each twisting head and a crane places a bundle of untwisted bars on a row of supoprts 16. The conveyer 25 is driven by an electric motor and has inclined sprags 28 at spaced intervals equal to the sprags 18 on a horizontal conveyer 17. The bars are transferred to the twisting units by hydraulically operated pivoted transfer arms 35, 36, 37 and 38 provided with crutches 43, 44, 45 and 46. The transfer and removal operations of each bar from one or other of the twisting units is performed in a predetermined sequence and at intervals of time which have a fixed relationship to the rate of descent of the conveyer. The twisted bars are removed from the units by hydraulically pivoted guide rails 51, 52, 53 and 54 along which the bars roll until they are caught in the sprags 28 of the vertical conveyer. At the end of the conveyer run the bars are discharged on to inclined rails 60 which guide them into the tines of several pivoted forks 58 where they are bound together and discharged into a cradle 61. In the modification shown in Fig. 4 the horizontal and vertical conveyer 17 and 25 are replaced by a single conveyer comprising belts 101 passing round pulleys 24, 26 and 102. A row of bar supports 107 feed each bar on to the sprags 108 of the ascending conveyer run 106. This embodiment dispenses with the elevated walkways for the operators. Twisted bars removed by the pivoted guide rails roll on to stationary guide bars 112, 113 and 114 before engaging the conveyer sprags 108. The twisted bars are discharged on to inclined rails 60 and into a rotary bundling device 118.