baber/WOPTO huggingface dataset:
Patent GB-1002849-A (GB)
Title: Improvements in and relating to electric heaters
Inventor: URRY JOHN THOMAS
IPC: H05B3/68
Filed: 1963-06-11
Abstract: 1,002,849. Embedded sheathed electric heaters. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 3, 1964 [June 11, 1963; June 20, 1963], Nos. 23214/63 and 24598/63. Heading H5H. A hot-plate comprises an annular casing 1 of heat-resisting metal enclosing a conventional coiled sheathed heating element 4, the space between the casing and element being filled with compressed powdered metallic material 13 which may be sintered. To manufacture the hot-plate shown, the element 4 is supported in the casing portion 2, material 13 is poured in and compressed by application of the casing portion 3, after which the edges 14, 15 are peened over or welded to secure portions 2, 3 together. Sintering may be performed by passing current through the element 4. Alternatively, the portion 3 may be omitted and the material 13 compressed by a plunger and then sintered to form a rigid structure. In another modification, Fig. 4 (not shown), both casing portions have U-shaped cross-sections to facilitate welding of their flanges. The element 4 may contact or be spaced from the inner surface of the portion 2.
Patent GB-295403-A (GB)
Title: Improvements in or relating to printing machines
IPC: B41L47/58
Filed: 1928-08-11
Abstract: 295,403. Addressograph, Ltd., (Assignees of Duncan, J. S., and Hubbard, H. E.). Aug. 12, 1927, [Convention date]. Pile tables and supports for sheet feeds; sheetregistering devices; sheet-seeparators; sheet carriers and forwarders.-In a machine for printing addresses or other matter on magazines or similar articles, the magazines are stacked in a hopper 146, Fig. 7, and bear against a front plate 145 bent outwardly at the lower end. The bottom magazine is separated from the remainder, and is drawn down between feed rollers 46, 50 by suction nozzles on a suction pipe 51 pivotally suspended from a valve casing 52 and oscillated by a rod 62 connected to a lever 57, which is oscillated about a pivot 55 by cams on a main camshaft 13, the suction valve in the casing 52 being controlled by the swinging movement of the pipe. Both sets of feed rollers are rotated by gearing, and the rollers 46 are carried on arms 42, which are rocked about a pivot 34 by a cam 40 on the shaft 13 to move the rollers 46 periodically into engagement with the rollers 50. At the same time, a series of fingers 65 swing up against the stack of magazines, and, besides guiding the descending magazine into correct position between the feed rollers, hold back the remainder. From the feed rollers, the magazines are guided to endless bands 30. 74, Fig. 1, between which they are fed through the machine. The bands 30 travel over pulleys 29, and the bands 74 over guide rollers 73, 75. The magazine arriving in printing position and that following behind are arrested while printing takes place by means of stops 115 rocking about pivot shafts 117 provided with roller arms 121 engaging cams 123 on a shaft 124. Rollers 120 on arms fixed on the shafts 117 press the magazines on to the feed bands 74. An additional stop &c. device 136 is provided to slow up the magazines prior to delivery.
Patent GB-1553889-A (GB)
Title: Apparatus for introducing ingredients into a stream of water
IPC: G01R33/032
Filed: 1976-06-04
Abstract: Mounted in an apparatus housing (4, 7, 8) through which the water flows, is a rotating container (6), into which the soluble material (26), for example a fertiliser, a plant-protection agent or a weedkiller, is introduced. The container (6) has a bottom (12) and a circumferential wall (11, 13) which are closed relative to the outside, and a cover (17) which has a central first orifice (18) and a plurality of second orifices (19). The circumferential wall (11, 13) forms, on the inside of the container (6), a bearing surface, against which the not yet dissolved material (26) is pressed as the result of the centrifugal force (Z) generated by the rotation of the container (6). The edge of each of the orifices (18, 19) in the cover (17) is at a distance from the bearing surface. Because the not yet dissolved material (26) is pressed against the bearing surface as a result of the centrifugal force (Z), only dissolved material (26), together with water (27) flowing in through the first orifice (18), can pass out of the container (6) through the second orifices (19). This ensures that only completely dissolved material (26) passes into the stream of water. <IMAGE>
Patent GB-1222747-A (GB)
Title: Method and apparatus for effecting gas flow through a combustion gas generator
Inventor: KOTOC STEFAN
IPC: F01K25/00
Filed: 1969-05-07
Abstract: 1,222,747. Gas turbine engines; combustion equipment. USTAV PRO VYZKUM MOTOROVYCH VOZIDEL. May 7, 1969 [Nov.14, 1968], No.23347/69. Headings F1G and F1L. The invention relates to a combustion gas generator which comprises an annular combustion chamber 4 disposed around a cylindrical chamber 5 which has an inlet duct 8 for air or oxygen. One end of the combustion chamber is connected with the cylindrical chamber by way of a distributer 6 through which combustion gases may pass from the combustion chamber to the cylindrical chamber, the other end of the combustion chamber being connected to the cylindrical chamber by way of a header 7 whereby part of the combustion gas and air mixture within the cylindrical chamber may pass into the combustion chamber, the remaining part of the gas and air mixture passing through an outlet 10 to a point of use. The gases discharging through the distributer 6 are given a swirling motion whereby the gases act to draw ambient air into the chamber 5. The fuel supply devices in the combustion chamber are not shown. Operation is started by firing a cartridge 16, the gases from which are directed into the chamber 5 with a swirling motion. In Fig. 2 a turbine 11 is disposed in the combustion gas outlet duct 18, the turbine driving an airscrew 12, also a mixing device 17 located in the cylindrical chamber. In Fig.3 (not shown), the gases from the chamber 5 discharge through duct 18 into an inward radial flow turbine 13 the gases discharging therefrom into the cylindrical chamber 5 from which they discharge through duct 14.
Patent GB-1439178-A (GB)
Title: Air conditioning
IPC: F24F5/00
Filed: 1973-05-17
Abstract: 1439178 Space cooling units TOUR AGENTURER AB 17 May 1973 [18 May 1972] 23579/73 Headings F4U and F4V Apparatus for cooling the air in a room comprises at least one pipe network 2, located in a floor, wall or ceiling of the room, connected in series or in parallel with a heat exchanger 1 arranged within the room. The heat exchanger 1 is formed as a convector, having a radial fan 3 and a tray 8 for collecting moisture condensed on the surface of the heat exchanger. In operation of the apparatus, the water entry temperature to the heat exchanger 1 is maintained lower than the dew point temperature of the room air, and the water entry temperature to the pipe network is maintained equal to or higher than the dew point temperature. Consequently, condensation in the room is restricted to the heat exchanger 1 and is collected in the tray 8. A condition responsive relay 4 may be provided such that if the impeller 3 ceases to operate, valve 5 will close and valve 6 open, causing the cold water to by-pass the heat exchanger 1. In a complete system (Fig. 3, not shown) the supply water is first cooled in a refrigeration evaporator before being divided; one flow passing to the apparatus as shown in Fig. 1 via a second refrigeration evaporator, and the other passing to an auxiliary pipe network. In a second complete system (Fig. 4, not shown' the supply water is again first cooled in a refrigeration evaporator before being divided into three; one flow passing directly to pipe network 2 and a second flow passing via a second evaporator, to the heat exchangers 1. A third flow passes to more pipe network and a heat exchanger connected in parallel, the heat exchanger being in series with a third evaporator. Cooling water may be stored in a thermally insulated tank
Patent GB-1413383-A (GB)
Title: Cross-linked copolymers and their production
IPC: C08F222/10
Filed: 1973-03-29
Abstract: 1413383 Copolymers BAYER AG 29 March 1973 23600/75 Divided out of 1413381 Heading C3P A cross-linked copolymer comprising the following copolymerized residues (percentages being by weight of the cross-linked co-polymer): A: 0À1 to 50% of at least one α,#-olefinically unsaturated dicarboxylic acid anhydride having 4-9 carbon atoms; B: 99À9 to 50% of at least one di- and/or polyacrylate or methacrylate of a diol and/or a polyol, the said copolymer having a bulk volume of 1À4-30 ml./g. and a specific surface area of 0À1-500 m.<SP>2</SP>/g., and containing, after hydrolysis of the anhydride groups, 0À02 to 10 m.equiv. of acid per gram, is obtained by copolymerizing by precipitation or bead polymerization in a diluent inert to anhydride groups at 20-200‹ C. in the presence of a freeradical initiator, a mixture comprising 0À2 to 70 wt. per cent of component A and 99.9 to 30 wt. per cent of component B. Copolymerized residues A are preferably derived from at least one of maleic, itaconic, and citraconic anhydrides, and the polymerized residues B are preferably derived from di-acrylates and dimethacrylates of diols containing 2-4 carbon atoms, reaction products of 1 mole of diols having 2-4 carbon atoms with 1-20 moles of at least one C 2-4  alkylene oxide, and trimethylolpropane trimethacrylate. In the examples the following starting materials are copolymerized: tetraethylene glycol dimethacrylate; ethylene glycol dimethacrylate, diethylene glycol dimethacrylate and maleic anhydride using azoisobutyronitrile as initiator.
Patent GB-406344-A (GB)
Title: Improvements in or relating to the production of formic acid
IPC: C07C51/10
Filed: 1932-08-24
Abstract: Catalysts for the production of formic acid from carbon monoxide and steam comprise the halides (preferably iodides) of a large number of metals or tellurium.  The halides may be made by adding a hydrohalogen acid to the gases and employing an oxide, hydroxide, carbonate or acetate.  Carriers may be employed such as active charcoal, fuller's earth and kieselguhr.  In examples calcium iodide and zinc chloride respectively are used upon active charcoal, the charcoal being soaked in the aqueous solutions and dried at 125 DEG C. so as to contain 20 per cent of halide.  The apparatus should be made of or lined with glass or made of acid-resisting alloys of molybdenum, cobalt, tungsten, chromium, manganese or nickel, or the interior may be coated with chromium or silver.  Specification 29165/10, [Class 1 (i)], is referred to.ALSO:Formic acid is produced by passing a mixture of carbon monoxide and steam over a catalyst comprising a metal halide, preferably a halide of an alkaline earth or alkali metal (calcium, barium, strontium, magnesium, sodium, potassium caesium, rubidium, and lithium).  The iodides are preferred.  Other halides suitable are those of tin, iron, cobalt, nickel, bismuth, manganese, lead, titanium, tellurium, zinc, and cadmium.  Mixtures of these substances may be used, and the catalysts may be supported upon carriers such as active charcoal, fuller's earth and kieselguhr. A hydrogen halide may be added to the gases, and in that case the solid halide may be produced in situ from the corresponding oxide, hydroxide, carbonate or acetate.  Inert gases may be present.  The reaction may be effected at 100--400 DEG  C. and at 25--900 atmospheres pressure.  Examples describe the use of calcium iodide on active charcoal made by soaking the charcoal in aqueous calcium iodide and drying at 125 DEG  C. so that the content of iodide is 20 per cent; sodium bromide; zinc chloride on active charcoal made as described for calcium iodide.  In the last case hydrochloric or hydrobromic acid is added to the gases.  The apparatus should be made of or lined with glass, or may be made of acid-resisting alloys of molybdenum, cobalt, tungsten, chromium, manganese or nickel, or the interior may be coated with chromium or silver. Specification 29165/10, [Class 2 (iii)], is referred to.
Patent GB-655696-A (GB)
Title: Systems of transmission of intelligence by carrier currents
IPC: H04J1/10
Filed: 1948-09-10
Abstract: 655,696. Carrier transmission. STANDARD TELEPHONES & CABLES, Ltd. Sept. 10, 1948, No. 23837. Convention date, Oct. 17, 1947. [Class 40 (iv)] In a wide-band carrier transmission system in which a block of channels is dropped off at an intermediate station and replaced by a similar block of other channels, attenuation of through-channels adjacent either side of the block of channels rejected by filtering is neutralized by combining the outgoing channels with inversely attenuated adjacent channels which are derived by separately phase-inverting the incoming signal and combining it with the filtered through-channels, followed by selective filtering. As shown, the band of channels to be dropped off is rejected from the throughchannels, together with an idle frequency band on either side, by a band-stop filter 2. The incoming channels are also applied through phase changers 7 and 8 and then combined in antiphase with the filtered through-channels. The resulting frequency band, which consists of the elimination zone and the adjacent attenuated frequency bands due to the filter 2, is applied to filters 17 and 18 which select respectively the frequency bands on either side of the elimination zone. These bands are finally filtered at a lower frequency range by sharp cut-off filters 25, 26 after passing through phase and amplitude adjusting devices 19, 20, the frequencies being reduced and then restored to their original range, after filtering, by frequency changers 21, 27 and 22, 28, each controlled by a common oscillator 23, 24. The frequency band to be dropped off is selected by a band-pass filter 32 and reduced to a lower frequency range at a frequency changer 33. The replacement group of channels is stepped up to the frequency range of the dropped off group at a frequency changer 35, which shares a common oscillator 34 with the frequency changer 33, and is then combined with the outputs from frequency changers 27, 28. The attenuated frequency bands and replacement channels are combined with the through channels after passing through a filter 29, the through channels being applied through a phasecorrector 4. Amplifiers 3, 5, 30 and 9 to 16 are provided in the circuit, amplifiers 9 to 16 being buffer amplifiers used to prevent interaction between circuits.
Patent GB-681640-A (GB)
Title: Improvements in tubulous boilers
IPC: F22B31/00
Filed: 1950-09-29
Abstract: 681,640. Igniting burners. BABCOCK & WILCOX, Ltd. Sept. 29, 1950 [Oct. 1, 1948] No. 23870/50. Class 75(iii) [Also in Group XII] In a tubulous steam generator furnace fired by pulverulent fuel, a heat storing table 3 formed of material which remains solid during operation of the furnace provides an ignition surface slightly below the burners 2 supported by groups of tubes 4 and 5 extending from distributers 6 and 7 and forming with tubes 12 and 13 cooling tube screens for the walls 10 and 11 respectively. In a modification, Fig. 5, the table 3 is saddle shaped, extending at an upward inclination from the centre of the combustion chamber to the side walls thereof, and the supporting tubes 26 and 27 extend first inwardly from headers 24 and 25 screening the outer edges of the table 3 and then extend upwardly and outwardly to form members of the side wall tubes. The table 3 is formed with openings 36 supplied with air through a duct 38 and valves 39. A third modification, Fig. 8, has a saddle shaped table 3 formed with a hollow vertical cylinder 41 disposed coaxially of the combustion chamber. Supporting tubes 18<SP>1</SP> and 19<SP>1</SP> rising from the distributers 22 and 23 line the surface of the table 3 and the intermediate tubes line the outer surface of the lower part of the cylinder 41 and help to form the wider upper part 43 which is constructed by w,elding studs to the tubes and covering the tubes and studs with a plastic refractory material. Apertures 36<SP>1</SP> in the sides of the upper portion 43 of the cylinder discharge air supplied through the duct 38 into the centre of the whirling flame in the combustion chamber. The cooling tubes 18' and 19<SP>1</SP> after leaving the cylinder 41 continue as a vertical bank and then respectively as inclined banks of tubes extending towards and into the chamber walls 34 and 35 to eventually join headers 46 and 47 connected with a separator drum. The cooling tubes 18' and 19<SP>1</SP> lining the end portions of the table 3 are taken outwardly to other side walls as part of the tube wall screens. In each of the aforementioned embodiments the table 3 is so arranged that slag deposited on the surface can drain therefrom.
Patent GB-837854-A (GB)
Title: Improvements identified essentially with precision balances
Inventor: HODSMAN GEORGE FRANCIS
IPC: G01G3/10
Filed: 1957-07-29
Abstract: 837,854. Precision balances. OERTLING Ltd., L. July 14, 1958 [July 29, 1957], No. 23885/57. Class 143 In a precision balance of the kind wherein the weighbeam 15 and/or the load pans 25 are suspended by vertical filaments such as quartz fibres 22, 23 attached to the weighbeam 15, the said filaments adjacent their ends attached to the weighbeam are guided and deflected around horizontal cross members 19, 21 extending perpendicularly to the beam axis. As shown, the weighbeam 15 comprises two horizontally spaced parallel quartz fibres 16 braced by diagonal fibres 18 extending between the beam ends and the upper end of a central vertical fibre pointer 17, the fibres 16 being bridged by the cylindrical fibre cross members 19, 21 adjacent the pointer 17 and the beam ends. The beam is suspended by two fibres 22 each carried by a screw 26 vertically adjustable in a cantilever arm 14 detachably bolted to lugs 12 on a pedestal 10, 11. Holes 37, 38 in the platform 10 of the pedestal permit passage of the pan suspension fibres 23 and the pointer 38. The various fibres forming the beam 15 and the suspension elements are fused or cemented at their respective points of attachment. Torsional load is applied to the weighbeam to achieve balance by means of a pair of horizontally aligned quartz fibres 28, 33, Fig. 3, attached to opposite ends of the cross member 19, the fibre 28 being secured to a fibre spring bow 29 anchored to an adjustable mount 31 in the free end of the readily detachable cantilever arm 14 and the fibre 33 being anchored to a rod 34 which is rotatably mounted, but restrained from axial movement, in the other end of the arm 14. The rod 34 carries a wormwheel 35 which meshes with a worm 36 the necessary rotation of which to restore balance with a load in one pan provides a measure of the load. Specification 837,855 is referred to.
Patent GB-184390-A (GB)
Title: Method and device for manufacturing chain mail in tubular shape in any desired width
IPC: B21F31/00
Filed: 1921-09-08
Abstract: 184,390. Fessler, M. Sept. 8, 1921. Wire fabrics.-In a machine for making chain mail with soldered ring joints, the mail, which is in the form of a continuous band, rotates around three pulleys o which guide it first along a rail s where the rings are inserted and formed by the members f, g and then through the apparatus l where solder is applied to the joints which are then heated to soldering temperature in the blow-pipe flame m. Rotation of the mail, which may be of any length, is effected by reciprocating grippers h which alternately engage and disengage with the mail. In the ring forming and inserting tool, any number of which may be used, the wire d is cut off in lengths, bent to U-shape by the member e, inserted by the pincers #, and finally closed by the member g.
Patent GB-217813-A (GB)
Title: Improvements in and relating to locks
IPC: E05B63/12
Filed: 1923-09-25
Abstract: 217,813. Looney, O. J. Sept. 25, 1923. Locks, with bolt interlocking with staple; revolving barrel.-A pair of pivoted members with hook-shaped ends are thrust forward into the staple by a key-operated bolt. which then thrusts them apart to interlock with the staple. The hook-ended members 14 are pivoted at 24 to slides 23 and have additional hooks 17 at their inner ends to engage recesses 18 and shoulders 22 on the sliding bolt 19, which is operated by the follower 13 of the revolving barrel 12. The bolt 19 has a slot 29 sliding over a fixed stump 30, with which the lug 32 of a tumbler 31 pivoted on the bolt co-operates. When the lock is in its inoperative position, the hook-ends 15 of the pivoted members are flush with the face plate 9. To operate the lock the barrel 12 is turned by the key, releasing the tumbler from the stump 30 and shooting the bolt 19 forwards, the end 20 of which first thrusts the members 14, pressed together by springs 27, into the staple, further forward motion of these being prevented by flanges 26 on the slides 23 engaging stops 25. Further forward motion of the bolt presses the members 14 apart, causing their hook ends 15 to interlock with staple 16 and blocking them in this position as shown in Fig. 2. The casing 5 of the barrel is held against rotation by the screw 6, the end of which is concealed by the face plate 9.
Patent GB-1160045-A (GB)
Title: Amide Derivatives of Dehydroabietylamine and Pantolactone
IPC: C07C235/06
Filed: 1967-05-23
Abstract: 1,160,045. Amide derivatives of dehydroabiethylamine and pantolactone. DELMAR CHEMICALS Ltd. 23 May, 1967 [19 July, 1966], No. 23963/67. Heading C2C. D- and L-pantoyl dehydroabiethylamides of the formulµ are prepared by reacting together DL-pantolactone and dehydroabiethylamide and separating the diasterioisomers from the reaction mixture. The individual D-( - )- and L-(+)- amides are prepared in the above manner from the corresponding D-( - )- and L-( + )- pantolactone.
Patent GB-925451-A (GB)
Title: Magnetron
Inventor: TWISLETON JOHN ROBERT GEOFFREY
IPC: H01J23/48
Filed: 1960-07-08
Abstract: 925,451. Magnetrons. ASSOCIATED ELEC. TRICAL INDUSTRIES Ltd. June 27, 1961 [July 8, 1960], No. 23964/60. Class 39 (1). In a multi-cavity vane-type magnetron output coupling connections are taken from vanes which in operation have opposite instantaneous polarities to the conductors of a coaxial line. As shown, straps 11, 12 are taken from adjacent vanes 2 through a slot 13 in the polepiece 7 to the inner and outer conductors 10, 9 of the coaxial line 8. Strap 12 is connected to the polepiece 7 and strap 11 to a cylindrical condutor 14 composite with the conductor 10 and supported from the conductor 9 by a pillar 15. The connections to the anode segments may be at A and B in Fig. 3, or at A<SP>1</SP> and B<SP>1</SP>. Specification 655,409 is referred to.
Patent GB-801414-A (GB)
Title: Novel petroleum resin process
Inventor: TEGGE BRUCE ROBERT
IPC: C08F240/00
Filed: 1956-08-03
Abstract: In a continuous process for the polymerization of steam-cracked petroleum hydrocarbon fractions boiling in the range 20 DEG  to 280 DEG  C., and having 10-35 wt. per cent diolefines, 40-70 wt. per cent olefines, 20-45 wt. per cent aromatics and 0-20 wt. per cent paraffins and naphthenes using an aluminium chloride or bromide catalyst at a temperature of 10 DEG  to 60 DEG  C., the reactor effluent is subjected to a liquid phase hydrolysis, and a solid light coloured resin of a low ash content separated from the hydrolysed mixture.  After pretreatment by heat to convert the cyclopentadiene monomers to dimers which are then separated, the feed stream is polymerized in a two-stage recirculatory process in which the catalyst is added at a rate of 0.1 to 2 per cent by weight of aluminium chloride on the feed, as a dispersion, complex or sludge. After settling, the effluent is treated with water, preferably at about 100 DEG  to 200 DEG  C. under superatmospheric pressure, the resin separated by flashing in the presence of added ammonia, and the overhead fraction hydrolysed with soda ash or sodium hydroxide solution at about 150 DEG  C., and distilled to recover a gasoline fraction overhead and a liquid polymer residue.