baber/WOPTO huggingface dataset:
Patent GB-854371-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28D11/04
Filed: 1959-02-24
Abstract: 854,371. Mixing appliances. COOMBES, S. N. Feb. 24, 1959, No. 6298/59. Class 86 [Also in Group XIII] A rotary heat exchanger mounted in. a liquid container 1 to heat or cool the liquid therein comprises concentric tubular elements 2, 3 and a plurality of branch tubes projecting radially from the tubular elements, said branch tubes interconnecting the space within the inner element and the annular space between said elements whreby a heating or cooling fluid such as water may be passed through the branch tubes by way of said concentric tube elements. The apparatus may be used to heat or cool a liquid mass which is then discharged from the container. Alternatively. a liquid may be heated or cooled in moving continuously through the container' The branch tubes may each comprise con centric-tubes 10, 12 connected to the elements 2, 3 in the manner shown in Figs. 1 and 2, or they may comprise single tubes 42 shaped and connected to the tubes 2,  3 in the manner shown in Fig. 8. The tube assembly may be such that all the branch tubes are connected in parallel for the flow of heating or cooling fluid therethrough. Alternatively the connection with the tubes 2, 3 may be such that the heating or cooling fluid flows through series connected groups of parallel-connected branch tubes. Disc baffles, to assist heat exchange may extend radially from the element 3 into the fluid being heated or cooled and may be gapped with the gaps in adjacent baffles relatively staggered. When, as in a further form described, the axis of rotation of the heat exchanger is vertical and the fluid to be heated or cooled is a substance such as massecuite, scrapers may be provided for preventing deposits of sugar crystals on the baffles or on the bottom of the container. Means are provided for permitting the branch tubes to be drained when necessary and also for permitting the escape of air displaced from the upper ends of the branch tubes when the heat exchanger is initially primed with heating or cooling fluid.
Patent GB-328077-A (GB)
Title: Improvements in the manufacture of rackets for tennis, badminton and other games
IPC: B27M3/22
Filed: 1929-02-26
Abstract: 328,077. Bliss, C. W., and Wells, G. E. H. Feb. 26, 1929. Bending. - Relates to apparatus for bending tennis &c. racket frames, of the kind wherein the treated ash, hickory, &c. strip is given a preliminary bending around a former by mechanically operated means, and the two ends of the strip forming the handle are subsequently brought together and secured by means of a vice which is brought into operative position below the level of the supporting table. According to the invention the means employed for effecting the preliminary bending operation and the means employed for raising and lowering the vice are operated by means common to both. In forming a frame, the central part of a strip of ash &c. previously steamed is placed between a slidable pin 16, Figs. 2 and 3; and a former 2 previously positioned on a table 1 by means of pins 6<a>. By depressing a pedal 25 connected to a rod 24 and lever 22, the slidable pin 16 is advanced to clamp the strip, which may if desired be protected by an interposed steel band 52, Fig. 6. The operator now rotates a shaft 38 by means of cross-bar levers 45 thereby causing levers 30 to traverse a bridge 6 over the table 1. The bridge carries two flanged rollers 5 mounted on pivoted arms 13, and during the movement of the bridge the rollers are pressed by springs 14 against the strip and bend it round the former 2. Continued rotation of the crossbar levers 45 causes an eccentric 40 to raise a bracket 3 carrying the vice jaws 4, over which the operator places a pair of neck formers 20. By turning a handle 19 the neck formers are pressed upon the strip and complete the shape as shown in Fig. 6. The bent strip and its formers may then be removed from the apparatus, the parts being retained in position by clamps 53, 54. In a modified apparatus, a single spring replaces the two springs 14, and the bracket 3 is raised by a cam against the action of a spring.
Patent GB-347801-A (GB)
Title: Arrangement for preventing the corrosion of metal vapour rectifiers
IPC: H01J13/32
Filed: 1930-02-26
Abstract: 347,801. Mercury-vapour rectifiers. FUSI DENKI SEIZO KABUSHIKI KAISHA, Kawasaki, Japan. Feb. 26, 1930, No. 6400. Convention date, Feb. 27, 1929. [Class 39 (i).] Electrolytic corrosion of an insulated iron container A of a rectifier by cooling water is prevented by the provision of easily enchangeable metal plates H, which are given a potential equal, at least, to that of the container and are inserted in vessels G fitted in the supply and discharge insulating pipes of the cooling system. The vessel G is connected to a cooling jacket B and to a metal pipe F by means of rubber pipes D<1>, D<2>. The container and its jacket and the vessel G are supported on insulators C and are connected together by a lead K. In a modification, the vessel G and the plates H are given a positive potential with respect to the container by means of a current source J or by forming them of a metal e.g. zinc or cadmium which is more electro-positive than iron. The potential of the plates may be varied by connecting them to an adjustable tapping on a resistance (Fig. 5, not shown) which shunts the current source.
Patent GB-581902-A (GB)
Title: Execution of catalytic conversions in the presence of ferrous metals
IPC: B01J38/12
Filed: 1943-04-22
Abstract: In the regeneration of catalysts which have been used in the conversion of carbonaceous materials under conditions liable to cause poisoning of the catalyst by iron, a sulphur content of 0.0001-0.01 per cent. in the form of sulphur dioxide is maintained in the gas supplied to the regeneration zone.  The treatment is particularly applicable to metal oxide catalysts, e.g., chromium oxide, used in the dehydrogenation of propane, butane &c. Specification 553,705 is referred to.
Patent GB-1221681-A (GB)
Title: Moulded articles
IPC: B29C71/02
Filed: 1968-02-09
Abstract: 1,221,681. Heat treatment of polypivalolactone articles. KANEGAFUCHI BOSEKI K.K. 9 Feb., 1968 [10 Feb., 1967], No. 6541/68. Heading B5A. Moulded articles consisting substantially of polypivalolactone are subjected to a heat treatment at a temperature x(‹C.) and for a time y(hr.) which satisfies the inequalities The polymer may be a copolymer containing up to 25 mole per cent of another lactone, i.e. #-propiolactone or α,α-diethylpropiolactone or may be a mixture of polypivalolactone with other polymers which do not substantially affect the properties of polypivalolactone; it has an intrinsic viscosity (measured in 6 parts by weight of phenol and 4 parts by weight of ochlorophenol at 30‹ C.) of 1À5-4À0 and may contain titanium dioxide and a stabilizer such as tri-octadecyl phosphite or dilauryl thiodipropionate. The moulding may be prepared by compression, injection, extrusion or blow moulding and the preferred temperatures for each of these processes are specified. The heat treatment increases the impact resistance and the degree of elongation of the moulded articles.
Patent GB-385142-A (GB)
Title: Improvements in or relating to steam generating installations
IPC: F23M20/00
Filed: 1932-03-04
Abstract: 385,142. Heating air supply to furnaces. JOHNSON, J., Northumbria, Golf Side, Cheam, Surrey. March 4, 1932, No. 6564. [Class 51 (i).] In a multitubular boiler of the Scotch type heated by liquid or pulverulent fuel a unitary structure is provided comprising casing sections forming the smokebox, a smoke uptake enclosing tubes 7 of an air heating regenerator and an air jacket 3 completely surrounding the heat radiating walls 1 of the boiler and furnace front and forming an extension of the regenerator. The air jacket may enclose the boiler mountings and may be extended to enclose a pair of boilers arranged back to back. A steam superheater 11 of the kind described in Specification 310,981, [Class 123 (iii), Steam separators &c.], may be arranged in the combustion chamber 12. A slag-removing tube 18 is provided in the furnace front.
Patent GB-565873-A (GB)
Title: Improvements in or relating to transition curves for roads and railways and other constructions
IPC: E01C1/00
Filed: 1943-04-27
Abstract: 565, 873. Determining transition curves for roads &c. MURRAY, F. T. April 27, 1943, No. 6664. [Class 97 (iii)] [Also in Group XXIV] A transition curve for joining a straight or circular part of a track to a further circular part, for example in a railway, tramway or road track or a cam track, is constituted by the envelope of a series of circles, each of which is tangential to a base line and which are struck from a progressive series of centres such that the envelope circles are of decreasing radius as the curve bends away from the base line. Preferably, the radius of each envelope circle is inversely proportional to the length of the transition curve measured from its point of origin or starting point to its point of contact with the envelope circle. In Fig. 3 is shown a plotter for drawing a transition curve joining straight and circular portions of a track. The edge 21 is shaped to the transition curve and the curved member 20 is secured to a base 22 which has an edge 23 parallel to the base line 24. A number of plotters are provided to various scales to afford a selection of transition curves. In using the plotter, the transition curve 21 is fitted so that its base line 24 coincides with the straight portion of the track line and the curved edge runs into the circular portion of the track line.
Patent GB-280089-A (GB)
Title: Improvements in work-clamps for stapling and nailing machines
IPC: B27F7/17
Filed: 1927-03-10
Abstract: 280,089. Rigby, F. J. March 10, 1927. Machine details.-A work clamp for a nailing or stapling machine, for example the box-hingeing machine described in Specification 278,951, comprises a bar 4 which is of bridge-like form to span the work table 5 and is adjustably carried at each end by brackets 6. The latter are mounted on vertical side bars 7 which are pivoted near the top by links 10 to the work table, and at the bottom to levers 8 carrying rolls 9 engaging cams 2 on the main shaft 1. The cams 2 are approximately heart-shaped, so that there is first a sudden clamping of the work, then a gradual increase of pressure, then a gradual decrease, and finally a sudden release. The clamp is held normally in work free position by springs 11.
Patent GB-179359-A (GB)
Title: Improvements in or relating to electric light lamp sets for motor cycles and side cars
IPC: B62J6/04
Filed: 1921-03-01
Abstract: 179,359. Smith, J. F. March 1, 1921. Batteries, mounting or supporting.-Relates to electric-lighting sets for motor-cycles and sidecars, of the type in which the accumulator is carried in a box or holder 1, which is fixed to the rear carrier of the motor-cycle and is fitted with the rear light 4 and a switch 7. The box or holder 1, which is similar to and is substituted for the pannier bag or box usually fitted to motorcycle carriers, forms or has fitted thereto the rear number-plate, which is illuminated by the rear light 4.
Patent GB-102878-A (GB)
Title: Improvements in Internal Combustion Engines.
Inventor: ROCHEFORT-LUCAY CLAUDE DE
IPC: F01L5/04
Filed: 1916-05-12
Abstract: 102,878. Luþay, C. de Rochefort-. May 12, 1916. Valves; valve-gear.-In engines in which the admission and exhaust are each controlled by a duplex valve comprising a reciprocating ported piston working in a reciprocating ported sleeve, the piston valves A, A<1> have the same period as the engine piston R, and the sleeve valves E, E<1> have double this period. The valves A, A' are actuated by a lever D pivoted at M and rocked by a crank-shaft C turning at engine speed. Crank-shafts F, F<1> turning at half engine speed actuate the sleeves E, E<1> respectively.
Patent GB-912915-A (GB)
Title: Electric arc welding
IPC: B23K9/173
Filed: 1959-02-27
Abstract: 912,915. Welding by fusion. AIR REDUCTION CO. Inc. Feb. 27, 1959 [Feb. 28, 1958], No. 6907/59. Class 83 (4). In depositing metal from a consumable wire electrode using a high current density self-adjusting arc in a shield of substantially inert gas, the current, electrode extension (i.e. distance of tip from current contact) and electrode diametor are chosen so that the electrode tip becoming plastic and deformable is rotated by the reaction forces of the arc. A rotary arc with spray transfer of metal as shown in Fig. 2 is produced, and the width of the deposit depends on the amount of rotation. Tho gas is argon, preferably with about 1% oxygen. The rotary arc generally occurs at current densities considerably in excess of those at which transistion to spray transfer occurs, although in the case of small diameter, say 0.030 inch mild steel electrodes, increase of electrode extension up to three inches causes the rotary arc to occur at the same current densities as spray transfer. If direct current of reverse polarity is not used activation of the electrode surface is necessary. Specifications 687,666, 731,836 and 738,284 are referred to.
Patent GB-1456904-A (GB)
Title: Vibration densitometer
IPC: G01N9/00
Filed: 1974-02-15
Abstract: 1456904 Vibration densitometer ITT INDUSTRIES Inc 15 Feb 1974 [15 Feb 1973]  6943/74 Heading G1G A vibration densitometer substantially as described in Specification 1328888 (Division Gl) is said to be constructed so that it is characterized operationally by the equation D = -Af + B where D is the density of fluid in which the vane is  immersed, f is vane resonant frequency and A,B are constants, with A = D 2 -D 1 /f 1 -f 2  and the rate of  change of frequency f with temperature T being given by f = <SP>df</SP>/ dT  = C + <SP>E</SP>/ L  where L is vane length, C,E are constants and f 1 , f 2  are vane resonant frequencies in first and second fluids of densities D 1 , D 2  respectively. To make the densitometer output substantially temperature invariate; the vane is constructed with L=L 1  and frequencies f = f 3  and f = f 4  are measured at two different fluid temperatures T 3 , T 4  in a third fluid; then L is reduced to L = L 2  and f = f 5  is measured in a fourth fluid at temperature T 5  and f = f 6  is measured in the fourth fluid at temperature T 6 ; then L is reduced again to L = L 3  where:- nd Do is the known rate of change of density with respect to temperature of the fluid of which the density is to be monitored by a vane of length L 3 .
Patent GB-609240-A (GB)
Title: A method of electrically heating metal parts
IPC: H05B3/00
Filed: 1946-03-06
Abstract: 609,240. Heating metals by passage of current. LOUVROIL-MONTBARD-AULNOYE. March 6, 1946, No. 6948. Convenvention date, Dec. 16, 1939. [Class 39(iii)] Three metal blocks 1-3 are heated by 3- phase current led to electrodes 4-6 in contact with the ends of the blocks, the other ends of the blocks being in contact with electrodes 10-12 connected to form a neutral point. The blocks are parallel and arranged close together at the apices of an equilateral triangle. The current leads 15 to the electrodes are nested inside one another. A headstock 13 carries the neutral connection connection and is movable according to the lengths of the blocks: An outer casing of refractory material or of a metal having a high resistivity, cooled and polished on the inside may surround the blocks.
Patent GB-101786-A (GB)
Title: Improvements in and relating to Containers or Boxes for Sheets of Paper.
IPC: A24F17/00
Filed: 1916-05-17
Abstract: 101,786. Waldes & Co. Oct. 1.2, 1915, [Convention date]. Contents, delivering.-In a box from which sheets of paper are delivered by means of an adhesive g on the lid, the sheets e are held in a frame c provided with resilient bars d, which normally prevent contact of the adhesive with the upper sheets of paper. The adhesive g is carried on a plate h forming part of a press-button i.
Patent GB-456333-A (GB)
Title: Improvements in or relating to tubular coupling devices
IPC: A47L9/24
Filed: 1935-03-06
Abstract: 456,333. Hose connections. BRITISH VACUUM CLEANER & ENGINEERING CO., Ltd., and FRAME, W. J., Parsons Green Lane, Fulham, London. March 6, 1935, No. 7055. [Class 99 (i)] A tapered connector b on the end of a hose a is secured within a two-part socket d, e by a rubber &c. sleeve b which extends loosely within the socket and is provided with a flange g adapted to be gripped between the said socket parts d, e. The sleeve b is formed with annular ribs or corrugations o so that it is placed under tension when the connector b is inserted and under compression, causing a collapsing action between the corrugations, when the connector is withdrawn, thus rendering the resistance to withdrawal greater than the resistance to insertion. The invention is particularly applicable to suction cleaning machines, the socket being clamped to a machine cover c, which abuts against a flange l on the part d, by a collar n on the part c. In a modification the corrugated sleeve h is secured to the cover c by a metal washer r and screws q.
Patent GB-176391-A (GB)
Title: Improvements in lined casks or containers
IPC: B65D25/14
Filed: 1920-12-08
Abstract: 176,391. Woodhead, T. A. Dec. 8, 1920. Casks made from staves; lined casks.-In a cask or container made from staves previously lined with metal, the lining B of the staves A extends partly into but not beyond the slots therein for the top or bottom D. the unlined outer surface G of the top or 'bottom being directly in contact with the corresponding unlined surfaces of the slots in the staves. The top and bottom are similarly lined and may be recessed to take a nut for securing a casting forming the top opening in position. The lining is hydraulically or otherwise pressed upon the stave, or the staves are sprayed or coated with metal in a liquid condition.
Patent GB-593497-A (GB)
Title: Improvements in means for heating air and supplying the heated air to the room or rooms of a building
IPC: F24D5/02
Filed: 1945-03-21
Abstract: 593,497. Heating air. NEWLIN, H. J. March 21, 1945, No. 7112. [Class 64 (iii)] [Also in Group XI] In an air heating system comprising a hot air passage or shaft 29 in the bottom of which a stove is located and through which the flue 21 from the stove passes so that air is warmed by the stove and flue and discharges into a room or rooms through openings 31 in the shaft, the stove comprises a water boiler 1 from which the water circulates through a radiator or radiators 20 with flow and return header tanks 20a, 20b, arranged in the passage or shaft 29. Air is supplied to the shaft 29 through a duct provided under the floor and containing a fan arranged in a central pipe which is supported by thin fins. When the fan is in operation, the annular space around the pipe is closed by dampers. Ducts 31a may lead the heated air to remote parts of the rooms. The shaft is subdivided by partitions 30 at each upper floor level, and openings are provided in the shaft walls between the partitions to circulate and warm air in each room. Dampers 28 may be provided to prevent circulation of warm air when the boiler is used in hot weather. The boiler firebox may have an opening arranged in association with top and side reflectors 37, 39 to provide an open fireplace, the opening being closable by a sliding door 4 connected to counterweights 7.
Patent GB-126124-A (GB)
Title: Improvements in Dynamo Electric Machines.
Inventor: PARSONS CHARLES ALGERNON
IPC: H02K3/50
Filed: 1918-04-29
Abstract: 126,124. Parsons, Sir C. A., and Rosen, J. April 29, 1918. Coils and conductors.-The joint between the core conductor and the end connexion is subdivided into two or more smaller joints so as to reduce heating losses. Figs. 1 and 2 illustrate the invention as applied to an alternator armature with one conductor B per slot and with the end connexions built into two layers L. On issuing from the core A, the conductor B is divided into bundles C so as to form three joints J at each. end of the conductor, and three strips E in parallel form one end connector. Each strip E is looped round a bundle C. The joints may be insulated one from the other by thin insulating strips F. The end connector M, Fig. 4, may be solid and be slit at the ends to form the strips E, or these strips may be welded or soldered to the solid connector M.
Patent GB-589426-A (GB)
Title: Treatment of effluent from a hydrocarbon oil catalytic cracking operation
IPC: C10L1/06
Filed: 1945-03-22
Abstract: Aviation fuel is obtained by fractionally distilling the product of a hydrocarbon oil cracking reaction into two or three fractions, one boiling from 110 DEG F. to a temperature between 210 DEG  and 270 DEG F., and another fraction boiling from a temperature between 210 DEG and 270 DEG  to 330 DEG F., with or without an intermediate fraction boiling between the upper limit of the first fraction and the lower limit of the second, subjecting the first fraction to non-destructive catalytic hydrogenation, treating the second fraction with concentrated sulphuric acid followed by redistillation, submitting the intermediate fraction to either treatment, and finally combining the processed fractions.  The second fraction is preferably recracked before acid treatment. Gas oil is cracked catalytically in unit 1 and the products are fractionated in column 3 from which a naphtha of boiling range 110 DEG F. to 330 DEG F. is withdrawn through line 7 and fractionated in column 8.  A 110 DEG  to 210 DEG F. fraction, taken off <PICT:0589426/III/1> through line 9, is hydrogenated in unit 12 at a temperature between 400 DEG  and 700 DEG F. and under a pressure between 100 and 750 lbs. per square inch using a mixed sulphide catalyst.  The hydrogenated product is collected in accumulator 14.  An intermediate naphtha fraction of boiling range 210 DEG  to 270 DEG F., taken off from column 8 through line 10, is treated with acid in unit 18, then fed to still 20, from which refined distillate is collected in accumulator 22.  The high boiling naphtha fraction, range 270 DEG  to 330 DEG F., from column 8 is withdrawn through line 11, cracked either thermally or catalytically in unit 25, treated with acid in unit 27, and then distilled in still 20.  The products from accumulators 14 and 22 are combined in line 16 and blended with isoparaffins from supply 33.
Patent GB-1322303-A (GB)
Title: Igniter plug
IPC: H01T13/39
Filed: 1972-02-17
Abstract: 1322303 Igniter plugs GENERAL MOTORS CORP 17 Feb 1972 [25 Feb 1971] 7334/72 Heading F1B An igniter plug suitable for continuous sparking operation for extended periods of time at elevated temperatures of up to and including 1093‹C, comprises a shell body 2 forming the ground electrode, an insulator 5 and a centre electrode 9 positioned so that a spark gap 21 is formed in which the electrical discharges between the centre electrode and the ground electrode occur across the surface of the insulator exposed between the centre electrode and the ground electrode. The portion of the ground electrode adjacent the spark gap is formed of an annular insert 19 of ductile iridium metal having a high oxidation and spark erosion resistance at the elevated temperature. The annular insert 19 is welded to the shell body 2 by a narrow weld zone in which the iridium metal is both well-alloyed with the metal of the shell body and displays a minor degree of recrystallization. The weld zone between the shell and the insert is preferably achieved by a high energy narrow beam welding technique such as electron or laser beam welding. The spark gap may be exterior of the plug.