baber/WOPTO huggingface dataset:
Patent GB-384761-A (GB)
Title: Improvements in or relating to the treatment of coal tar
IPC: C10C1/00
Filed: 1931-11-05
Abstract: <PICT:0384761/III/1> Coal tar is mixed with a solvent of a paraffin character and superheated steam is passed into the mixture, whereby pitch-like ingredients are separated therefrom, leaving a supernatant liquid which is used as a paint or for impregnating wood &c. Dehydrated coal tar is heated in a tank 1 provided with steam jackets 2, and superheated steam is passed in through pipes 5 to form impinging jets of steam which are mixed with paraffin admitted through a jet 3.  The solvent vapours and steam pass through a pipe 11 to a condenser.  After settling the supernatant liquid is drawn off through cocks 6, 7, and the pitch through a cock 8.  The pitch residue may also be used in the preparation of an anticorrosive paint.
Patent GB-262268-A (GB)
Title: An apparatus for producing code messages in electric morse signals specially for usein learning and practising the reading of such signals
IPC: G09B19/26
Filed: 1925-12-05
Abstract: 262,268. Mills, C. Dec. 5, 1925. Telegraphy, teaching; automatic transmitters. -Apparatus for producing code messages in Morse signals, particularly for instructional uses, comprises non-conducting cylinders covered with conducting sleeves apertured along lines parallel to the axis so as to leave intervening parts of the conductor of a length corresponding to any desired Morse character, such cylinders being mounted end to end on a rotary table or travelling band and moved below a contact brush in a circuit containing a battery, the sleeves, and a buzzer and lamp for producing audible and visible signals corresponding with the characters constituted by the parts of the conductor between the apertures. Fig. 1 shows a prismatic cylinder A with sleeve B in which apertures C are cut along the line of each corner. A number of these are mounted end to end in holders H carried by a turntable D on a spindle F which may be rotated by hand or a clockwork motor to carry the top edge of the sleeves below a contact brush K connected through a battery and switches with a buzzer and lamp, either or both of which may be operated, the circuit being completed through the driving mechanism, turntable and holders H to the sleeves. The gap held on the top of adjacent sleeves is arranged to be equal to the space of three Morse units, the holders II ensuring this spacing.
Patent GB-520539-A (GB)
Title: Improvements in and relating to wheel suspensions for vehicles
IPC: B60G11/23
Filed: 1938-10-25
Abstract: 520,539. Vehicle spring-suspensions, torsional springs. BRIGGS MANUFACTURING CO. Oct. 25. 1938, No. 30809. Convention date, March 12. [Classes 108 (ii) and 108 (iii)] In an independent wheel suspension for vehicles of the kind in which movement of a swinging wheel-carrying arm 28, Fig. 2, is resisted by means of torsional rubber elements 23, 24 surrounding the spindle 20 of the arm 28, means are provided for compressing the elements 23, 24 in an axial direction, while adjacent surfaces of the elements are bonded to metallic plates 23b, 24b adapted to be detachably connected to prevent relative rotary movement between them. As shown, the elements 23, 24 are of annular form with a wedge-shaped crosssection, the inclined surfaces being bonded to metal rings 23a, 24a, which are non-rotatably clamped against plates 22, 17 secured respectively to a collar 21 and to a casing 11. The collar 21 is mounted non-rotatably on the spindle 20 by engaging lugs 20b thereon, while the spindle in turn is supported in roller or needle bearings 16 on a frame member 13 and in conical roller bearing 19 on the plate 17. The adjacent plates 23b, 24b are coupled by means of an intervening plate 26 having a number of radial notches 26a, and by cylindrical coupling members 25, which engage the slots 26a and also circular apertures in the plates 23b, 24b. Axial compression of the elements 23, 24 is effected by screwing up a nut 60 on the outer end of the spindle 20. Swinging movement of the wheel-carrying arm 28 causes the collar 21, plate 22, and ring 23a to rotate with the spindle 20 relative to the fixed ring 24a and plate 17, subjecting the elements 23, 24 to torsional stresses. Additional links 34, 35 may be connected between the stub axle sleeve 28a, Fig. 2, and the casing 11 to complete a quadrilateral linkage suspension.
Patent GB-1305596-A (GB)
IPC: B01J31/06
Filed: 1970-06-25
Abstract: 1305596 Amines by hydrogenation TEXACO DEVELOPMENT CORP 25 June 1970 [3 July 1969] 30813/70 Heading C2C [Also in Divisions B1 C1 C3 and C7] Isopropylamine and di-isopropylamine are produced by hydrogenating 2-nitropropane at 250‹ F. over a platinum catalyst supported on a pyrolysed polyacrylonitrile.
Patent GB-490512-A (GB)
Title: Improvements in or relating to the removal of sulphur dioxide from waste gases
IPC: B64C39/00
Filed: 1936-11-11
Abstract: In the recovery of sulphur dioxide from gases by absorbing it in a solution containing ammonium sulphite and ammonium bisulphite and then heating the solution to liberate the sulphur dioxide and to regenerate the solution for further use, the optimum concentration of ammonia in the solution for varying conditions of operation is calculated from an equation taking into account the concentration of sulphur dioxide in the gases treated, the temperature of the extracting solution leaving the scrubber, and the temperature of regeneration, maximum scrubbing and regenerating efficiency being assumed.  The value of the optimum concentration decreases as the temperature of absorption increases and as the temperature of regeneration increases, and increases as the concentration of sulphur dioxide in the gases treated increases.  The optimum concentration found from the equation is not critical and concentrations 10 per cent above and below it may be used.  When the optimum concentration is above about 22 mols. ammonia per 100 mols. water, and therefore exceeds the limit of solubility of the ammonium salts in the solution, a concentration as high as possible is used.  A table is given showing the optimum concentration for gases containing 0,3 per cent sulphur dioxide at various absorption and regenerating temperatures; in practuce, using for instance an absorption temperature of 45 DEG  C. and a regenerating temperature of 100 DEG C., a concentration of between 11 and 14 mols. ammonia per 100 mols. water would be used.  If desired, instead of the ammonia concentration being varied to suit different conditions of operation, this may remain constant, and the equation then be used to vary say the temperature of absorption or regeneration with variation in the composition of the gases treated.  The Specification as open to inspection under Sect. 91 states that a similar equation could be developed to determine the optimum concentration when using a solution containing sodium sulphite and sodium bisulphite.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1517725-A (GB)
Title: Process for producing a natural gas substitute
IPC: C10K3/02
Filed: 1975-07-23
Abstract: 1517725 Substitute natural gas production METALLGESELLSCHAFT AG 23 July 1975 [27 July 1974] 30897/75 Heading C5E A process for the production of a methanecontaining gas which may be substituted for natural gas comprises cooling and purifying a crude gas containing hydrogen and carbon oxides which has been produced by the gasification of coal, tar, or heavy residual oil under pressure and subjecting the crude gas to methanation in at least two stages, in each of which the gas is in contact with a nickel catalyst under a pressure of 5-100 bars and at a temperature in the range of 200-500C, the product gas from the penultimate methanation stage being reacted in the last methanation stage in contact with a catalyst which is indirectly cooled by the purified crude gas which had been cooled to below 200C, flowing in countercurrent to the gas to be reacted. The figure illustrates an arrangement for performing the method, comprising two methanation stages. As shown, the purified crude gas 1 is fed as the cooling gas through the second stage methanation reactor 2, and is thereafter taken by line 4 to the first stage reactor 6, being mixed in line 8a with the recycle gases from the reactor 6. The product gas from the reactor 6 then enters via line 12 the second stage reactor 2, after temperature adjustment in heat exchanger 8, and is there reacted in catalyst beds 5 which are cooled as previously described, by crude gas 1 flowing countercurrently to the gases to be reacted.
Patent GB-520589-A (GB)
Title: An improved electrical vacuum annealing and fusion furnace heated by glow discharge
IPC: C22B9/22
Filed: 1938-10-26
Abstract: 520,589. Electric glow discharge furnaces. BERGHAUS, B. Oct. 26, 1938, No. 30934. Convention date, Jan. 25. [Class 39 (iii)] [Also in Group XL] In an electrical annealing or melting furnace heated by a glow discharge the material to be heated is electrically insulated with respect to the cathode. The wall 2 and floor 1 of the oven are connected as the cathode and are watercooled. The anode 15 is introduced through the member 1 and is insulated therefrom by an insulating disc 22 and a ring gap too narrow to permit of a glow discharge therein. Through the anode 15, and insulated therefrom by a ring gap, passes a water-cooled rod 16 which supports the material to be heated on a quartz plate 20 having a screening pin 19. An inert gas, or another gas when chemical action is desirable, is supplied through an insulated pipe 10, and a similar pipe 9 connects a vacuum pump. The apparatus is operated at a voltage of 500 to 7,000 volts, and at a gas pressure of 10 to 0À05 mm. The wall 2 of the oven is perferably metallic but may be a semi-conductor, e.g., graphite, and a viewing window 8 is provided therein. The material to be heated may not be insulated from the anode and may itself form the anode. Direct voltage is preferably employed, but alternating voltage may be used when the introduced anode is small compared with the cathode, when a rectifying effect is produced.
Patent GB-1518933-A (GB)
Title: Air conditioner
IPC: B60H1/32
Filed: 1975-07-11
Abstract: 1518933 Air conditioning P A MANAGEMENT CONSULTANTS Ltd 11 July 1975 [12 July 1974] 30999/74 Headings F4H F4U and F4V An air conditioning system, e.g. supplying cooled air to a vehicle interior, comprises a compressor and expander for the air with a heat pipe arranged at least partially between the compressor and expander. The compressor and expander may be each formed as twin screws with a finned heat pipe therebetween or as particularly described the compressor 15 and expander 16 are formed by blades 18, 21 respectively on a driven shaft 23 alternating with stationary blades 19, 22 in a tube having an air inlet 12 and outlets 13. The heat pipe is formed by vertically arranged tubes 24 having condenser portions 26, 27 which may be incorporated in the windscreen pillar and may be a Perkins tube or capillary heat pipe. Normally the heat pipe may remove heat but a tube 31 may recirculate air from the car interior to the heat pipes for heating purposes, the cooling portions 26, 27 being switched out of operation.
Patent GB-1222326-A (GB)
Title: Electric incandescent lamp
IPC: H01K1/54
Filed: 1969-06-19
Abstract: 1,222,326. Electric incandescent lamp. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 19 June, 1969 [22 June, 1968], No. 3102l/69 Heading HlF. An electric incandescent lamp comprises an envelope having a tungsten filament therein, an inert filling gas and tribromosilane which acts as a reactive transport gas. During operation of the lamp, the envelope is at at least 300 C., the filament has a life of up to 250 hours and the luminous efficacy of the lamp is at least 20 lumens per watt. In two embodiments a projector lamp and a photographic lamp with tungsten filaments are filled with a mixture of SiHBr 3 , CH 2 Br and Ar with or without N 2 . The tribromosilane acts as a getter for oxygen and water and thus prevents a water-cycle in the lamp. It is stated that SiH 2 Br 2  and SiB g Br are unsuitable for inclusion in the fill gas.
Patent GB-262783-A (GB)
Title: An improved process for the production of a smooth, dull surface in dyed textile fabrics
IPC: D06C15/00
Filed: 1926-12-07
Abstract: 262,783. Sallmann, G. A. Dec. 8, 1925, [Convention date]. Calendering and pressing.-A fabric for use as imitation leather in the manufacture, of gloves, &c., after dyeing, and as a last stage in its treatment, is passed in a, dry condition through indiarubber pressure rolls which give it a, smooth matt surface.
Patent GB-957271-A (GB)
Title: Improvements relating to roofs for motor vehicles
IPC: B60J7/16
Filed: 1962-08-14
Abstract: 957,271. Vehicle roofs. DAIMLER-BENZ A.G. Aug. 14, 1962 [Aug. 16, 1961], No. 31180/62. Heading B7B. A vehicle roof having rigid or movable side parts 2 which may also be formed as longitudinal roof bearers 7, has one or more slidable or removable centre parts 3, 4 which extend to the front or rear edge of the roof. The edge 9 of the panel 4 may be turned up or down or be joggled and may lie over or under the side parts 2. Specification 936,989 is referred to
Patent GB-438289-A (GB)
Title: Improvements in and relating to moving coil voltage regulators
IPC: H01F29/12
Filed: 1934-10-31
Abstract: 438,289. Transformers. FERRANTI, Ltd., and NORRIS, E. D. T., Hollinwood, Lancashire. Oct. 31, 1934, No. 31212. [Class 38 (ii)] In short-circuited moving-coil type of voltage regulating transformers, additional return core paths are provided for the flux that leaks out at the side faces of the core. As shown in Fig. 4, additional flux paths k, h are provided to the main core m, d. The laminations forming the centre core are graded to be approximately circular in crosssection. In the modification shown in Fig. 6, only one side flux path, o, q is provided. Specifications 340,538, 341,903, 368,142, 368,592, and 372,493 are referred to.
Patent GB-377533-A (GB)
Title: Process for increasing the fermenting power of and economising yeast in bread making
IPC: A21D2/02
Filed: 1931-11-12
Abstract: The fermenting power of yeast in breadmaking is increased by adding to the flour and/or the dough a yeast nutritive which gives rise to an increase of the yeast during fermentation of the dough, but excluding nutrients having a softening action such as diastatic malt, together with a persulphate to activate the yeast during the fermentation period.  Nutritives mentioned are sugar and ammonium salts.  An example is given of the effect obtained by the addition of a small amount of ammonium persulphate to yeast along with a mixture containing ammonium chloride, calcium sulphate, and potassium bromate.  Specifications 2778/11 and 235,874, [both in Class 14 (ii), Beverages &c.], are referred to.
Patent GB-446477-A (GB)
Title: Sewing machine
IPC: D05B27/22
Filed: 1935-11-13
Abstract: 446,477. Sewing-machines. FAIRWEATHER, W. C., 65, Chancery Lane, London.- (Singer Manufacturing Co. ; Elizabeth, New Jersey, U.S.A.) Nov. 13, 1935, No. 31375. [Class 112] In machines in which the needle assists the feed dog in moving the superposed plies of work past the stitching point, the actuating eccentrics of the two feeds are concomitantly adjustable. The under-shaft 20, driven from the main shaft 9 by the belt 18, has a pair of bevel gears 22, 23 for actuating the loop takers. The work is advanced longitudinally of the work arm 3 by the four-motion feed dog 25 carried by the feed bar 30 carried in a bracket 31 in the feed arm 3 for rocking and endwise movements. The rocking movements for raising and lowering the dog are imparted by a fork 32 on the feed bar 30 embracing the feed lift eccentric 34 on the shaft 20. The endwise or feed advancing movements are imparted by a fork 36 on the feed bar which engages a block 37 embracing the feed-advance eccentric 38. This eccentric is adjustably secured on the shaft 20 to alter the feed length. To adjust it, the detent 40 on the cover 39 of the arm 3 is depressed against its spring to enter the stop notch 41 in the periphery of the adjusting member 42 associated with the eccentric 38, restraining this against rotation. Adjustment of the eccentricity of the eccentric 38 is thus made by turning the shaft 20, while the member 42 is stationary. A similar adjustment is then made to alter the length of the assisting needle feed. The needle bar 13 reciprocates in a gate 14 pivoted at 15 and vibrated in the direction of the main feed by a cranked part 43 of the arm 44 rocked by a member 45 forking an eccentric 47 on the main shaft 9. The eccentric 47 embraces an eccentric 48 which can be turned on the shaft to vary the eccentricity of the eccentric 47 and so vary the needle feed. The eccentric 47 has a flange 49 with a slot 50 entered by a block 51 carried by a pin 5 This pin is fixed to a driving disc 53 secured to the main shaft 9. The pin 52 extends through a slot 55 in a flange 49 of the adjusting eccentric 48. For adjusting the eccentricity of the eccentric 47, the flange 49 is provided with a circular groove 57 which affords a clearance recess for a friction plate 58 and the heads of screws which are threaded into the disc. The flange 56 of the member 48 is provided with a stop notch 61 to receive a detent manually operable to hold the adjusting member against rotation with the eccentric 47. This detent comprises the reduced end 63 of the plunger 62. To effect concomitant adjustment of the feed of both needle and dog, the plunger 62 is pushed inwards against its spring and rotated to prevent retraction. The detent 40 on the work arm is then depressed. The main shaft 9 is then turned through the required angle to effect the desired adjustments of the eccentrics 38 and 47. To'facilitate accurate adjustment, graduations 72 are made on the periphery of the driving disc 53. Specifications 253,002, [Class 112], and 435,360 are referred to.
Patent GB-1011247-A (GB)
Title: Apparatus for the measurement of electrical conductivity in combustion zones
IPC: G01N27/62
Filed: 1962-08-16
Abstract: 1,011,247. Measuring combustion zone resistance electrically. C. S. R. CHEMICAL PTY. Ltd. Aug. 16,1962 [Aug. 16, 1961], No. 31404/62. Heading G1N. In apparatus for measuring the electrical conductivity in a combustion zone as, for example, in gas chromatography, the conductive path formed by a pair of electrodes 11,12 on opposite sides of a burner 14 is connected in series with a D.C. source 16 across the input of a D.C. impedance converter 17, driving a meter 18; and electrode supporting insulators 7, 8 are placed below the combustion zone and above a cool air inlet 6 to the apparatus. The platinum electrodes 11,12 are mounted on platinum wires fused to the insulators 7, 8 which may be of borosilicate glass, each electrode bottom edge being set about 2 mm below the level of the burner 14 which burns, in air supplied through inlet 6, a mixture of the gas to be evaluated and hydrogen, respectively introduced through parts 15 and 13 of a tube. Both electrodes and the tube are set in a glass cylinder 2 itself mounted within a closed outer glass jacket. Combustion products are exhausted through an orifice 5. The jacket 1 may be enclosed within an oven to prevent condensation effects.
Patent GB-1376395-A (GB)
Title: Burner with flame pattern control
IPC: F23D14/32
Filed: 1972-07-05
Abstract: 1376395 Burners with flame pattern control AIRCO Inc 5 July 1972 31429/72 Heading F4T A burner, e.g. for space heating or heat working, comprises a cylindrical combustion chamber 16 with a closed feed end and open discharge end, a plurality of inlets 24 giving fluent fuel streams flowing generally parallel to the longitudinal axis of chamber 16, and a plurality of inlets 26 each arranged to direct a stream of oxygen, or oxygen-containing gas, towards the discharge end at an angle to said axis such that each oxygen stream intersects a corresponding said fuel stream, the length of the chamber 16 between its feed and discharge ends being adjustable to vary the confining effect of the chamber on the flame discharged from its open end. The inlets 24, 26 are provided together with inlets 28 for a main fuel supply in a member 14 which is movable by a rack 54 and pinion 56 to alter the combustion chamber length. The axes of the oxygen inlets 26 initially converge towards said chamber-axis to define a plane of closest approach thereto, at and adjacent to which plane a primary combustion region is established, the axes of holes 26 diverging beyond said plane so that the main fuel flow from holes 28 mixes and burns with the oxygen at a region remote from said plane. The member 14 is movable from a location whereby the main fuel/oxygen mixing occurs well inside chamber 16, yielding a needle-type flame, Fig. 7 (not shown), to a location whereby said mixing is outside chamber 16 yielding an umbrella-type flame, Fig. 6 (not shown). The fuel may be gas, e.g. natural gas, or vaporized or atomized liquid fuel.
Patent GB-1433423-A (GB)
Title: Method and apparatus for sealing leaking pipeline joints
IPC: F16L55/175
Filed: 1973-07-02
Abstract: 1433423 Sealing pipe joints by injection moulding BTR INDUSTRIES Ltd 3 May 1974 [2 July 1973] 31492/73 Heading B5A [Also in Division F2] A method of sealing a leaking pipeline joint comprises locating a mould having a rigid outer casing and a flexible inner lining around the joint, injecting a sealant into the mould chamber formed, and reducing the volume of the mould chamber by introducing fluid under pressure into the space between the easing and lining to pressurize the sealant to a pressure above that in the pipeline until the sealant has solidified around the joint. The mould comprises two halves, each half consisting of'main shells 18 of a strong light material, e.g. aluminium, incorporating elastomeric inner liners 19 and end seals 20. The elastomeric liners 19, in the form of truncated cone halves, are equipped with flanges secured to mating flanges on main shells 18 sc that pressure tight chambers 21 are formed when the mould is assembled. The end seals 20, sealing the mould to the two pipes 10 and 11, consist of U-section elastomeric sealing members 23 (Fig. 3, not shown) and metallic outer members (22) located within the limbs of sealing member (23). Tight sealing against the pipeline is obtained by admitting pressurized fluid into the space between members (22) and (23). In an embodiment (Fig. 4, not shown) two locking plates (33) are used to permit smaller diameter end seals (32) being employed to accommodate smaller diameter pipes. To seal the joint both halves of the mould are sealingly secured around the joint 12-14 of the pipes 10, 11 and sealant injected through passage (27) at the bottom of the mould into the mould chamber formed by elastomeric liners 19, end seals 20, joint 12-14 and pipes 10, 11. Pressurizing fluid is then admitted to the chambers 21, at a pressure above that in the pipeline, deflecting the elastomeric liners 19 towards the pipeline axis. Air or gas above the sealant is allowed to escape via valve (29) which is closed when sealant exudes from it. The pressure in the chamber 21 is maintained until the sealant has set. The mould is then removed leaving the joint encapsulated in sealant with a small web of sealant at the mould parting line due to the flanges (30) of the liners 19 being attached at their ends to the shell 18. The sealant may be a thermosetting resin, e.g. polyurethane, epoxide or polyester or may be a thermoplastic material heated to a liquid or semi-liquid state and may contain bulk fillers and reinforcing agents.