baber/WOPTO huggingface dataset:
Patent GB-159156-A (GB)
Title: An improved process for the manufacture of sulphuric acid
IPC: C01B17/82
Filed: 1920-07-29
Abstract: 159,156. Kaltenbach, M. H. Feb. 17, 1920, [Convention date]. Sulphuric acid.-In the manufacture of sulphuric acid, the usual lead-chambers are replaced by one or more series of parallel tubes of relatively small diameter, packed with filling and provided with water-jackets. Hot burner-gases leaving the Glover tower 1 pass through the series of tubes 4, 10 &c. and finally reach the Gay- Lussac tower 11. By means of dampers 8, 9 any particular tube may be disconnected from the system and the temperature of the reaction is completely controlled by the regulation of the flow of water through the jackets 6 and by the adjustment of the temperature of the acid used for irrigating the tubes, by means of coils 16, 28. The acid supplying the tubes is withdrawn from the same or next series of tubes, or from the Glover or Gay-Lussac towers. The acid collected from the Glover tower, which is supplied with acid from the Gay-Lussac, is partly withdrawn from the system and partly returned, after cooling, to the Gay-Lussac supply tank 18. The necessary water for the production of sulphuric acid in the tubes is supplied by means of pipe 26.
Patent GB-359935-A (GB)
Title: Improvements in machines for finishing or treating paper tubes or vessels
IPC: B31B17/00
Filed: 1930-07-28
Abstract: 359,935. Making paper milk &c. vessels. FARROW, T., Victoria Mills, Ryecroft Street, Ashton-under-Lyne. July 28, 1930, No. 22642. Addition to 328,765, [Class 60, Grinding or abrading &c.]. [Classes 18 and 66.] Relates to a machine for making the tubular bodies of paper milk &c. vessels, of the form shown in Fig. 7, from conical tubes previously wound on mandrels. The wound tubes are placed on one of a number of rotatable mandrels E, Figs. 8 and 10, mounted in bearings in a headstock D intermittently rotated as in the parent case ; the mandrel spindles carry gear wheels e<3> one of which is engaged by a continuously rotating wheel k, at each dwell of the headstock. A tube A<1> being placed in position on a mandrel during a dwell of the headstock (position 1, Fig. 10) first becomes carried opposite to a revolving tool H (position 2), the mandrel at this station being held from movement by a spring or bracket J<1> engaging the pinion e<3>. The tool, which is brought up to the mandrel by an oscillating lever G<2> controlled by a rod G<3> operated as in the parent case, has a part h, Fig. 13, which enters and shapes the end of the tube into cylindrical form, and a series of inclined pins or pegs g<1>, Fig. 14, which turn over the end to form the rim a<4>. The mandrel next passes to position 3 where it is caused to revolve by the action of the wheel k and is engaged by pairs of grooving discs J; or passes between fluted or grooved rollers, by which the grooves a<1>, a<3> are formed, the mandrel being meanwhile engaged by a slidably mounted loose spindle F, Figs. 15 and 16, controlled by a camoperated forked lever F2, the end of which spindle has teeth f adapted to engage teeth e<4> on the end of the mandrel so that the two rotate together. The mandrel has a groove e adapted to form in conjunction with one of the discs J the groove and internal rib at the bottom of the vessel, and has also a half groove e<1> cooperating with the remaining half f<1>, formed on the spindle F, in conjunction with the other disc J to form the groove and rib at the mouth of the vessel. The finished tube passes to position 4 where it is ejected from the mandrel by a spring - controlled collar l carried by a rod L engaged by a bracket l<1> on a cam-actuated sliding- rod L<1>.
Patent GB-1043413-A (GB)
Title: Transmission and power take-off assembly for a tractor or other vehicle
IPC: B60K17/28
Filed: 1963-06-07
Abstract: 1,043,413. Change-speed gear. REGIE NATIONALE DES USINES RENAULT. June 7, 1963 [June 15, 1962], No. 22836/63. Heading F2D. In a tractor drive transmission and power take-off arrangement, the drive transmission which provides for ten forward and two reverse ratios, comprises an input shaft 4 driven from one plate 3 of a dual clutch 2, 3, 5 and is drivingly connected to an axially movable member 8 which may be put in a position for a splined connection 15 with the primary shaft 7 of the transmission, or in a position wherein it may rotate independently thereof but wherein a pinion 13 formed therein is in engagement with a gearset 11, 10. The primary shaft is fast with pinions 12, 23, 22, 21 and 20. The gearset 11, 10, which is freely rotatable on the output shaft 9 of the transmission and may be coupled thereto by a selector 17, is in permanent mesh with the pinion 12. A pinion 31 which is also freely rotatable on shaft 9 and may be coupled thereto by selector 17, is in permanent mesh with pinion 23. Synchronizing rings may be provided for co-operation with each side of the selector 17. A gearset 30, 29 is non-rotatably axially slidable on shaft 9 and may be brought into engagement with either of pinions 22 or 21 and a pinion 26, also non-rotatably axially slidable on shaft 9, may be brought into register with pinion 20 or with a reverse gear pinion 27, Fig. 4, meshing with gear 21. The gear ratios are thus established between pinions 20 and 26, 21 and 29, 22 and 30, 23 and 31, 12 and 10 either directly through the teeth 15, or through the reduction gear 13, 11. A power take-off input shaft 6, concentric with shaft 4, is driven from clutch plate 5 and has pinion teeth 43 and 42 in constant mesh with pinions 41 and 40 loosely mounted upon an intermediate shaft 35 with which they are connectible by means of a selector 37. Shaft 35 is connected by means of a pinion 46, idler pinion 48, Fig. 2, (not shown) and pinion 47 with a shaft 15 to which is connected a rearwardly extending power take-off shaft 50. A slidable coupling 36 is provided so that power take-off shaft 50 may be driven in synchronism with the tractor speeds, or independently thereof by engaging either pinion 40 or 41 with selector 37. A power take-off shaft 51, beneath the vehicle, is freely mounted on shaft 15 and may be driven by engaging a pinion 53 with a gear 54 integral with gear 41.
Patent GB-1101408-A (GB)
Title: Metallized coatings
IPC: C08J7/046
Filed: 1966-05-23
Abstract: In a process of vacuum depositing metals such as Al, Zn, Cu, Cr, Mo, Zr, Ti, Ni, Mg, Cd on to a plastic substrate, the substrate is first coated with a polymer of propylene which has been chemically modified by reaction with an a , b  ethylenically unsaturated organic compound selected from the class consisting of carboxylic acids, their anhydride, their amides and their alkyl esters having up to 12 carbon atoms in the alcohol moiety.  The plastic substrate may be such as poly [3,3-bis (chloromethyl) oxetane], polyethylene, crystalline polypropylene, amorphous polypropylene, polystyrene, P.V.C. polymethylmethacrylate cellulose acetate butyrate, polyformaldehyde, condensation product of p,p'-isopropylidene diphenol and phosgene, or a terpolymer of styrene, acrylonitrile and butadiene. The ethylenically unsaturated acid derivative may be maleic acid, fumaric acid, citraconic acid, itaconic acid or acrylic acid. Maleic anhydride is preferred.  Metal films up to 0.0005 inches thick can be formed by repeating the coating process. The metal coating can be further treated with lacquers or paint.
Patent GB-598490-A (GB)
Title: Improvements in or relating to bobbins, spools, drums and the like
IPC: B65H75/14
Filed: 1945-09-05
Abstract: 598,490. Bobbins. DE LA RUE PLASTICS, Ltd., and COOKE, F. G. Sept. 5, 1945, No. 22883. [Class 120 (iii)] [Also in. Group XXVIII] In a bobbin, spool, drum, or the like comprising cheeks and a tubular or rod-like barrel, one of both cheeks is or are provided with an internal recess co-operating with a similar recess-adjacent one or both ends of the barrel the co-operating recesses being adapted to receive thermosetting, thermoplastic or cementitous material which constitutes locking means to bind the cheeks against rotation relative to the barrel, or from pulling off in the axial direction of the barrel. The cheeks may be of mouldable material or made similar to the tube, which may be of laminated sheet material. As shown, the tubular barrel 1 of a bobbin is formed at each end with a shoulder providing seatings 3 for cheeks 4, 5. An internal recess 6 in each cheek co-operatas with a similar recess 7 in the corresponding end of tube 1 to receive thermosetting, thermoplastic or cementitious material 8 which is introduced through axial grooves communicating with the outer face of the cheek. The said axial grooves are formed at the junction of the cheek and tube 1, the material in the recesses 6, 7 which is in the form - of rings, and that in the grooyes in tube 1, serving to lock the cheeks to the tube. Bearing plugs 2 are provided for the bobbin spindle.
Patent GB-533037-A (GB)
Title: Improved method for the mechanical recording of sound
IPC: G11B11/00
Filed: 1939-08-08
Abstract: 533,037. Mechanically recorded optically reproduced sound records. PHILIPS LAMPS, Ltd. Aug. 8, 1939, No. 22922. Convention date, Aug. 10, 1938. [Class 40 (ii)] A mechanically cut sound record for optical reproduction comprises at least two cutting layers, the upper layer 24, Fig. 3, having good cutting properties and a thickness of less than 30 microns, and the lower layer 23 having substantially worse cutting properties, a superficial blackening 25 being formed on the upper layer by chemical agency either before or after the cutting operation. By good cutting properties is meant the production of a sharp edge where the material is cut. The upper layer may be of gelatine and the lower layer of a cellulose derivative. The blackening may be obtained as described in Specification 483,898, for example by the addition of lead acetate to the gelatine upper layer, which is then treated with ammonium sulphide to produce a black surface layer of lead sulphide. A combined sound and picture film is made on a photo-sensitive commercial film as follows. The picture is exposed while the sound track is not. The film is developed and fixed, leaving a clear sound track. This clear sound track is then blackened and cut.
Patent GB-598709-A (GB)
Title: Improvements relating to tiles or panels
IPC: E04F13/12
Filed: 1945-09-06
Abstract: 598,709. Facing tiles &c. DONALD, P. G., and ROWNSON, DREW, & CLYDESDALE, Ltd. Sept. 6, 1945, No. 22981. [Class 87(i)] A flanged metal or synthetic resin tile or panel is provided on two opposite edges with rearwardly and outwardly projecting tongues 3. The tongues on the two edges are offset by the width of a tongue so that they interfit with those of an adjacent tile.
Patent GB-1313705-A (GB)
Title: Rubbery cross-linked polymers and process for producing the same
IPC: C08K9/00
Filed: 1970-05-12
Abstract: 1313705 Curing polymers JAPAN SYNTHETIC RUBBER CO Ltd 12 May 1970 [19 May 1969] 23005/70 Headings C3P and C3R A prepolymer having at least two terminal #- ketoester groups is reacted with a compound of a metal having a coordination number of 4 or more so as to simultaneously cross-link and polymerize through chelation. Suitable prepolymers are based on polybutadiene and condensates of ethylene oxide or propylene oxide and glycerol, pentaerythritol, and sorbitol. The compositions may contain fillers, e.g. carbon black, zinc oxide, alumina and silica. The metal compound can be supplied adsorbed on a molecular sieve or in encapsulated form. Uses.-Injection-mouldable rubbers.
Patent GB-662392-A (GB)
Title: Manufacture of microspheroidal gel particles
IPC: B01J2/08
Filed: 1949-09-06
Abstract: <PICT:0662392/III/1> <PICT:0662392/III/2> In the manufacture of microspheroidal inorganic oxide gel particles of e.g. silica, alumina, silica-alumina or silica-magnesia, by dispersing a hydrosol of the oxide in a substantially water-immiscible organic setting medium, e.g. acid treated lube oil stock, kerosene, butanol, carbon tetrachloride, ethylene dibromide or acetylene tetrabromide, a plurality of separate bodies of the setting medium are provided and the hydrosol is supplied successively to each of the bodies from one of two streams which subsequently rejoin to form a continuous loop, each of the streams being passed through a flow restriction orifice adapted to apply a pressure drop to the streams substantially greater than the normal pressure drop through either limb of the loop.  The setting medium is heated and steam is injected into the hydrosol immediately prior to its entry into the setting medium so as to raise its temperature to, at least, that of the setting medium.  The process is effected continuously by the several batch reactors being automatically operated on a fixed time cycle.  The gels may be employed as catalysts or adsorbents.  As applied to the manufacture of a silica-alumina gel, heated sodium silicate solution and a mineral acid, e.g. sulphuric acid, are mixed at 15 and the mixture fed with an aluminium salt solution to mixing tank 16.  The so-formed hydrosol is fed from line 17 to the reactors 20, 21, 24, 25 in turn through a pipe loop, the limbs of which are provided with orifice plates 18, 19 so as to maintain a positive flow in each line no matter which of the reactors is being filled.  Organic liquid is fed from storage tank 26, through heat-exchanger 28 and line 29 to the reactors, a bleed line 31 feeding small quantities of organic liquid through lines 32 to hydrosol inlet line 35 to prevent blockage during rest periods.  Steam from line 36 is fed through lines 37 to mix with the hydrosol in line 35.  Ammonia is fed to the reactors from lines 40, 41 to precipitate alumina.  The reactors are discharged into an oil-water separator 46 from which oil overflows at 50 and is returned to storage tank 26 and the water-gel slurry is discharged at 53, washed on filter 54, reslurried and aged in tank 55, refiltered and washed on filter 57.  The organic liquid in tank 26 is clarified by passing it through a heater 65, a drum 67 wherein water is flashed off and a filter 70.  Means for breaking and separating the components of emulsions formed in separator 46 are denoted generally at 75, 76. The reactors are furnished with ammonia vents 42, air vents 44 and flush-water inlets 61.
Patent GB-762250-A (GB)
Title: Method of making magnetic cores for transformers or the like
Inventor: ZIMSKY JOHN J
IPC: H01F27/25
Filed: 1954-08-09
Abstract: 762,250. Transformers. McGRAW ELECTRIC CO. Aug. 9, 1954, No. 23098/54. Class 38(2). A laminated magnetic core 38 is made by winding on a mandrel 10 a loop 17 from a strip 15 of magnetic strip material; spacers 16 being inserted at one side of the loop during winding; the loop 17 being annealed after completion of the winding operation; removing the spacers 16; cutting through the turns of the loop 17 on the spacer side only intermediate the ends of the side so as to produce a number of discontinuous turns of laminations and finally assembling these laminations around a preformed winding 36 so that the ends 39 of the laminations form a series of lap joints 40.
Patent GB-969613-A (GB)
Title: Improvements in air filters
IPC: B01D46/24
Filed: 1960-07-01
Abstract: 969,613. Gas filters. CLARKE, CHAPMAN & CO. Ltd., and T. THOMPSON. Sept. 19, 1961 [July 1, 1960], No. 23148/60. Heading B1T.  Several frusto-conical layers 1 of glass fibre paper are enclosed between two frusto-conical members 2, 3 of thin perforated metal, Fig. 1, and the assembly is clamped end-wise by a threaded gland 12 between a loose inner endcap 5, 6 and an outer end-cap 8 secured to a discharge tube 9 having a single calibrated orifice 16. The gland 12 may be mounted in a threaded aperture in an autoclave containing sterilized articles initially under vacuum so that air subsequently admitted thereto through the filter will be sterile. A dust cover 18 of porous plastic sheet or fine wire gauze may be provided. Fig. 2 shows a modified construction to withstand the introduction of air, &c., at e.g. 100 lbs. per sq. inch. The casing 31 may be twice the length shown and accommodate two elements with end-caps 8 facing (Fig. 3, not shown).
Patent GB-359602-A (GB)
Title: Improvements relating to lubricants and to brake impregnating materials
IPC: C10M169/00
Filed: 1930-08-01
Abstract: Compositions for impregnating brake materials containing asbestos, and for use as lubricants and for loosening parts which have rusted together consist of lubricating oil, naphtha, carbon disulphide, and graphite, with or without other materials for specific purposes.  In an example of a lubricant, 0,5 oz. of ground or deflocculated graphite is added to 400 c.c. of a mixture of 500 litres of lubricating oil, 20 litres of paraffin oil, 20 litres of naphtha, and 20 litres of disulphide.
Patent GB-222654-A (GB)
Title: Improvements in or relating to suspension mechanism for perambulators, and the like
IPC: B62B7/10
Filed: 1923-09-18
Abstract: 222,654. Headley, F. H. Sept. 18, 1923. Springs, arrangement of.-In a folding perambulator or like vehicle comprising a chassis frame carrying a body frame consisting of pivoted linkwork, the front wheels are rigidly carried by downwardly cranked or directed parts of the chassis or body frame while the rear wheels are yieldingly carried by rearwardly extending rigid radius arms pivoted to the chassis and controlled by compression springs interposed between the arms and the chassis. As shown, the perambulator comprises a chassis 10, Fig. 1, a handle member 30 pivoted thereto at 33, a pivoted front U-shaped member 34 having its limbs parallel with the limbs of the handle member, and link:; 37 parallel with the chassis 10. The body frame is held in the unfolded position by jointed stretcher bars 41, 42. The sides of the flexible seat 39 are secured to wooden strips 38 carried by the links 37. The front axle 14 is secured to the downwardly inclined front ends 12 of the chassis and the rear axle 20 to the pivoted radius arms 17 by clips 19, Fig. 5, the radius arms being connected together by a transverse bar 22 bearing against compression springs 28 which abut against a transverse bar 25 on a chassis. In a modification, the front axle is carried by downward extensions of the members 34 so that the front and rear wheels move towards each other when the perambulator is folded. Specification 192,842 is referred to.
Patent GB-411080-A (GB)
Title: Improvements in apparatus for regulating an electric current
IPC: H02M7/15
Filed: 1932-08-22
Abstract: 411,080. Rectifying alternating current. JENAER GLASWERK SCHOTT & GEN., Otto-Schott-Strasse, Jena, Germany. Aug. 22, 1932, No. 23444. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 26, 1932]. [Class 38 (ii).] In grid-regulated gas or vapour discharge apparatus, provision is made whereby the grid potentials are caused to change rapidly from a negative to a positive value at the commencement of each conducting period thus ensuring ignition at the same point on the curve of anode voltage notwithstanding changes in the ignition characteristic due to changes in gas density &c. Fig. 1 shows an arrangement in which a mercury arc rectifier a fed by a transformer A has its grids c normally negatively charged by connection to the negative side of the load circuit through resistances m. The grids are also connected through a set of grid-controlled auxiliary valves j to a source of A.C. comprising a phase-shifting transformer B whereby regulation of the output of the rectifier a is effected. The grids of the auxiliary valves are energized with potentials lagging the corresponding anode voltages so that starting of current in each of the auxiliary valves is delayed until the anode voltage approaches its maximum value whereupon a sudden flow of current is produced in the corresponding resistance m and the corresponding grid of the main rectifier is suddenly brought to a sufficient positive potential to cause current to start in the corresponding anode under all conditions. Fig. 2 shows a modification whereby the same result is secured by using glow discharge tubes q breaking down at a predetermined voltage in place of the auxiliary valves j.
Patent GB-387259-A (GB)
Title: Improvements in devices for marking roads
IPC: E01F9/06
Filed: 1932-08-23
Abstract: 387,259. Compound metal plates. JULIEN, J. D., c/o Firth Derihon Stampings, Sheffield Road, Carbrook, Sheffield. Aug. 23, 1932, No. 23555. [Classes 20 (ii) and 87 (i).] A slab comprises an outer shell or casing 1 of stainless steel, or other untarnishable metal, and a lining 5 of less expensive metal, both shell and lining being formed from metal blanks superimposed and pressed or stamped up together. The two parts may be further secured together by spot-welding. Studs or projections 6 may be pressed into both parts. The outer shell may be formed with depending flanges 2 having inwardly keyed portions 3, the lining being correspondingly shaped to fit closely against the shell. The lining may carry additional tongues 9. In a modification, the lining comprises a substantially flat plate without flanges. In a further modification, the outer shell is larger than the lining and is bent round it at the edges.
Patent GB-754399-A (GB)
Title: Improvements in eddy current braking devices
IPC: H02K49/04
Filed: 1954-08-13
Abstract: 754,399. Eddy-current brakes. COMPAGNIE TELMA. Aug. 13, 1954 [Aug. 19, 1953], No. 23623/54. Class 35. An eddy-current brake consists of field members on either side of a rotor, the latter comprising two disc members so linked together that they can move toward one another but not move away from one another. As shown, projections 15a, 15b on fan blades 14a, 14b on discs 1a, 1b prevent the normal spacing of these discs being increased but they can move towards one another if expansion occurs. Each field member carries tapering wound pole-pieces 5 arranged' in annular formation.
Patent GB-1325936-A (GB)
Title: Process for preparing superphosphoric acid
IPC: C01B25/24
Filed: 1971-04-19
Abstract: 1325936 Plate-type evaporators PARKSON CORP 19 April 1971 [10 March 1970] 23675/ 71 Heading B1B [Also in Division C1] A plate-type evaporator comprises a number of thin corrugated plates 13 arranged in a closely spaced parallel relationship and separated by shaped gaskets 14 sited in openings 15 in the plates so as to provide two separate flow paths. Solution to be concentrated, e.g. aqueous phosphoric acid, enters the evaporator at inlet 18 flows along ducts 16 and 17 before leaving the evaporator; while heating fluid which enters the evaporator at inlet 19 passes along ducts 20 before leaving the evaporator.
Patent GB-442881-A (GB)
Title: An improved cheese cutter
IPC: B26D1/00
Filed: 1934-08-17
Abstract: 442,881. Cutting cheese. CALDWELL, W. J., Rome Hall, Brierfield, Lancashire. Aug. 17, 1934, No. 23713. [Class 87 (ii)] In a cheese cutter provided with a knife or a cutting wire tensioned in a bow frame, the cutting implement is pivoted on a base D made in the form of an inverted box with a slit J for the passage of the cutter and fitted with a tray G to catch cheese crumbs. The knife A, Fig. 4, is ground to a mirrorlike polish and is journalled on a rod or tube carried in bearings cast on the base D. The tray G is attached by screws H to ribs F depending from the base and panels K of marble &.c. are fixed on the top. The cutting wire l<1>, Fig. 6, is tensioned in the bow frame L by a nut l<3>. The end of the frame is turned over to form a handle L<1> and is guided by a stop M. Rubber cushioning devices N may be provided for the frame and an additional free wire O anchored at one end may be provided for cutting large cheeses &c.