baber/WOPTO huggingface dataset:
Patent GB-516659-A (GB)
Title: A process for the manufacture of isobutane from normal butane
IPC: C07C5/27
Filed: 1938-08-04
Abstract: 516,659. Isomerization of butane. NAAMLOOZE VENNOOTCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Aug. 4, 1938, No. 23103. Convention date, Feb. 12, 1938. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 20, 1939.] [Class 2 (iii)] Isobutane is obtained by contacting n-butane or mixtures containing it, preferably in the gas phase, at below about 200‹C. with a catalyst consisting of aluminium chloride, and a carrier comprising an inorganic substance containing water which normally can only be split off at about 200‹C. Such substances include kaolins, e.g. pipe clay, pyrophyllite, apophyllite, meerschaum, serpentine, and kieserite, which may be heated above 200‹C., but not so strongly as to drive off all the combined water, and alumina or silica gel, which may be prepared by heating the hydroxides say to about 250‹C. and thus still contain a few per cent. of water. Other catalysts or inert substances, e.g. pumice, chamotte, or quartz, or small'quantities of water or hydrogen chloride may also be present. Pressure may be ordinary, elevated or reduced. The process may be continuous and the isobutane formed removed by raising the temperature and/or reducing the pressure. In an example, a mixture of butanes is passed at 150‹C. with a contact period of 93 secs. over a mixture of aluminium chloride, and pipe clay dried at 300‹C. which has been compressed to pastilles. With pipe clay dried at 1100‹C., a much smaller conversion is obtained. Specification 498,512 is referred to. The Specification as open to inspection under Sect. 91 comprises also the use of carriers in general, e.g. pumice, silica, and " Permutite " (Registered Trade Mark). Temperatures preferably do not exceed 150-160‹C., and pressure of 10 atmos. or more may be used. The aluminium chloride may be employed in the form of its double compounds with aromatic hydrocarbons particularly those containing alkyl groups, e.g. butyl or tripropyl benzene. Organic compounds yielding hydrogen chloride under the reaction conditions, e.g. tertiary butyl chloride or secondary butyl alcohol, may be added. Examples describe the treatment of mixed butanes with aluminium chloride at 150‹C. using pumice as the carrier, at 120‹C. and 11 atmos. with pipeclay dried at 300‹C. as carrier, and at 120‹C. or at 100‹C. and 11 atmos. with a carrier consisting of alumina prepared from the hydroxide and dried at 300‹C. The butanes may be mixed with hydrogen chloride or previously bubbled through water at 20‹C. or secondary butyl alcohol or tertiary butyl chloride at 40‹C. This subject-matter does not appear in the Specification as accepted.
Patent GB-874361-A (GB)
Title: A process for the production of ª--(p-nitrobenzoyl)-ª--bromo acetic acid esters
IPC: C07C205/56
Filed: 1958-07-18
Abstract: a -p-nitrobenzoyl-a -bromo acetic acid esters are prepared by brominating the corresponding a -p-nitrobenzoyl acetic acid ester with N-bromsuccinimide at an elevated temperature in a solvent medium.  The reaction preferably takes place in a chlorinated hydrocarbon, e.g. carbon tetrachloride at reflux temperature.  In an example a -(p-nitrobenzoyl)-a -bromo-acetic acid ethyl ester is prepared.  Specification 874,362 is referred to.
Patent GB-258088-A (GB)
Title: Improvements in and relating to steam boiler economisers
IPC: F22D1/04
Filed: 1925-09-17
Abstract: 258,088. Babcock & Wilcox, Ltd., (Babcock & Wilcox Co.). Sert. 17, 1925. Feedwater, heating. -An economizer comprises successive series of groups 5 - - 10 of economizer tubes spaced along the length of a flue with the headers 17, 18 disposed longitudinally, upper and lower cross boxes 16, 19 being connected to each set of inlet and outlet headers respectively and other connections being arranged so that water flows in parallel through the tubes of each group and successively through the group. The ions of tubes in each header may be straight or staggered and alternate tubes in each row may be bent outward as shown in Fig. 5 to allow clearance space for the gases. The headers or pairs of headers may be spaced apart sufficiently to allow of a tube for replacement being passed between them as shown in dottedlines, Fig. 5.
Patent GB-1146785-A (GB)
Title: Steel alloy and tube manufactured therefrom
IPC: C22C38/06
Filed: 1967-05-18
Abstract: 1,146,785. Alloy steel. NIPPON KOKAN K.K. May 18, 1967 [Sept.10, 1966], No.23205/67. Heading C7A. A high tensile strength steel, for making tubes, tubes or die blocks, comprises;- C 0À1 - 0À23% Cr 0À1 - 0À5% Mn 1 - 1À5% Al 0À01 - 0À08% Cu less than 0À3% P less than 0À04% S less than 0À04 and Si 0À2 - 0À5% the balance apart from impurities, being iron.
Patent GB-1033068-A (GB)
Title: New active substances and their manufacture
IPC: C07D259/00
Filed: 1963-06-11
Abstract: The invention comprises ferricrocin and desferricrocin which are prepared by cultivating certain Aspergillus strains under aerobic conditions in aqueous nutrient solutions containing sources of carbon and nitrogen and inorganic salts.  The strains cultivated are Aspergillus versicolour M 3620 and M 3636, Aspergillus fumigatus M 57 and M 3628, Aspergillus nidulans M 2734 and Aspergillus humicola M 3635.  Preferably the iron content of the nutrient solution is at most 10-7 mol/litre.  The compounds may be extracted with adsorbents or by solvent extraction.  Desferricrocin is formed as well as ferricrocin and may be converted to ferricrocin by addition of ferric chloride; ferricrocin is converted to desferricrocin by reaction with a base or an acid or a substance capable of forming iron complexes. Examples are given.  Pharmaceutical preparations for combating the antibacterial effect of antibiotics belonging to the sideromycin group towards grampositive pathogens, comprise ferricrocin and desferricrocin together with excipients, e.g. gelatine, lactose, glucose, sodium chloride, starch, magnesium stearate, talc, vegetable oils, benzyl alcohols, gums, polyalkylene glycols and cholesterols.
Patent GB-828485-A (GB)
Title: Improvements in or relating to gas burners
Inventor: SHERLOCK JOHN EDWARD
IPC: F23Q9/04
Filed: 1957-07-24
Abstract: 828,485. Pilot-burner flame-detection devices. BRITISH THERMOSTAT CO. Ltd. July 22, 1958 [July 24, 1957], No. 23498/57. Class 75(1) A pilot-flame-failure device to cut off the main gas supply if the pilot burner is not alight is compensated for changes in ambient temperature by the change in ambient temperature adjusting the degree to which the pilot flame affects a thermally responsive element. Thus the pilot burner flame is rotated partly away from the thermally responsive element 1 by its burner tube 3 with lateral jet being mounted on a spiral bimetallic strip 4, Fig. 1, or a baffle plate 8 mounted on a bimetallic strip 9, Fig. 3, is variably interposed between the pilot flame and the thermally responsive element, or the thermally responsive element is moved away from or towards the pilot flame by being mounted on a bimetallic strip 13, Fig. 5. The effect is to keep sensibly constant the temperature at which the. thermally responsive element maintains the main gas valve open.
Patent GB-501362-A (GB)
Title: Improvements in containers for disc-shaped articles
IPC: G07D9/00
Filed: 1937-08-27
Abstract: 501,362. Coin- - handling apprances. HUFSCHMID, A. Aug. 27, 1937, No. 23542. Convention date, July 22. [Class 116] [Also in Group XVII] A holder for coins comprises end plates 1, 2, Fig. 4, joined by, at least two bars 3, partitions 10 and a movable bar 4 constituting a closure member to the holder. The bar 4 is pivoted to the end plate 1 and comprises two tubes slidable between stops on a central rod and forced apart by a spring 6, the free end of the bar having a projection to engage in an aperture 7 in the end plate 2. Alternatively, the bar 4 is entirely removable, both ends carrying projections to engage apertures in the end plates, and coil springs acting as keepers are connected between both ends of the bar 4 and the diagonally opposite bar 3. The partitions 10 are mounted on the bars 3 and held apart by helical springs, or sleeves 11, and springs 12 press the assemblage together, or the partitions can be positioned in slots in tubes on the bars 3. In an alternative construction the partitions are connected together by the movable bar and are mounted on one of the fixed bars 3, the latter being revolvable by an external knob so that the partitions and the movable bar can be swung out of the holder. A lug on the adjacent end plate can engage in one of two recesses on the knob to hold the partitions &c. in either the open or closed position. In this modification, one of the bars may carry small circular plates to act as partitions when the main partitions are swung aside. Several holders can be mounted on a baseboard by fixed and spring- pressed lugs 26, 29, Fig. 13, respectively which engage apertures 27, 28 in the end-plates of the holders. The lugs 26 can be replaced by recesses and fittings on the baseboard to maintain the holders against rotation, and the holders can be arranged in recesses so that the coins in all of them are at the same level.
Patent GB-1095208-A (GB)
Title: Improvements in or relating to printed circuit connectors
Inventor: JONES ARTHUR SCOTT
IPC: H01R12/52
Filed: 1966-05-26
Abstract: 1,095,208. Soldering. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 26, 1966, No. 23616/66. Heading B3R. [Also in Division H2] In making soldered connections between printed circuitry on two adjacent panels, e.g. at a right-angle junction, an intermediate connector is located between the panels so that bridging conductors on its outer surface contact the respective printed conductor, and solder balls inserted in the contact areas are melted by heat supplied from an element or hot air stream through a bore in the connector. The connector may be of a ceramic material and of circular cylindrical form with encircling conducting bands, or alternatively of triangular cross-section with conductors on one or two faces. Alternatively, the connections are made by dip coating the connector and printed conductors with tin lead or similar solder.
Patent GB-1103858-A (GB)
Title: Process for impregnating fillers
IPC: C08F292/00
Filed: 1965-06-03
Abstract: A filler having a mean particle size of 100-2000 <\>rA is treated with 0.005 to 10% by weight of a polymerizable substituted or unsubstituted hydrocarbon having one or more C-C double bonds and a b.p. of from -110 DEG  to +250 DEG  C. at a temperature and pressure below the critical temperature and pressure.  The filler may be carbon black (preferably furnace carbon black), dehydrated silicic acids and silicates or carbonates of the metals of Groups II and III of the Mendel<\>aeeff Periodic System.  The polymerizable hydrocarbon may be styrene or a -methyl styrene.  The impregnation may be carried out by loading the filler, which is being continuously agitated, with the polymerizable hydrocarbon in the vapour phase. The filler may be incorporated into a polybutadiene or ethylene propylene rubber.ALSO:A filler having a mean particle size of 100-2000 <\>rA is treated with 0.005 to 10% by weight of a polymerizable substituted or unsubstituted hydrocarbon having one or more C-C double bonds and a b.p. of from -110 DEG  C. to +250 DEG  C. at a temperature and pressure below the critical temperature and pressure.  The filler may be carbon black (preferably furnace carbon black), dehydrated silicic acids and silicates or carbonates of the metals of groups II and III of the Mendeleef Periodic System.  The polymerizable hydrocarbon may be styrene or a -methyl styrene.  The impregnation may be carried out by loading the filler, which is being continuously agitated, with the polymerizable hydrocarbon in the vapour phase.  The polymerizable organic compound may be ethylene, propylene, butene, isobutene, butadiene, chlorobutadiene, isoprene, hexadiene, octadiene, cyclooctadiene, cyclohexylnorbornene, vinylacetylene, vinylchloride, vinylbenzene, acrylonitrile, acrylic acid or methacrylic acid and their esters, olefin oxides e.g. ethylene oxide.  The filler may be incorporated into a polybutadiene or ethylene propylene rubber.
Patent GB-1502220-A (GB)
Title: Friction brakes
IPC: F16D66/02
Filed: 1976-06-09
Abstract: 1502220 Indicating brake lining wear WESTFALISCHE METALL INDUSTRIE KG HUECK & CO 9 June 1976 [16 June 1975] 23927/76 Heading F2E The indicator comprises a rupturable element 4 of electrically insulating material with an electrically conductive path 5 thereon, and a pressure element 8 arranged to break element 4 when contacted by the brake disc. Element 8 is located in a weakened portion of element 4 and is made of a resilient material or one which is harder than the friction lining 2. Element 4 is supported by lugs formed on a cylinder 3 inserted into an opening in the backing plate 1. Contacts 6, 7 supply current to path 5 which is formed on the side of member 4 remote from element 8.
Patent GB-727330-A (GB)
Title: A new or improved light fitting primarily for vehicle interiors
IPC: B60Q3/02
Filed: 1952-09-24
Abstract: 727,330. Lighting fittings. BATTERSBY, D. J. Sept. 23, 1953 [Sept. 24, 1952], No. 23936/52. Class 75 (4). In a lighting fitting, particularly for mounting on a vehicle roof, comprising a base provided with means for attaching it to a surface and carrying means for holding a lamp bulb and conveying current to it, and a transparent or translucent dome or bowl through which light can pass from the lamp bulb, the base 10 and dome 11 or bowl are formed by one and the same plastic moulding. The base 10 has a substantially deep flange 12 to space it from the supporting surface, and reinforcing ribs 15 are provided around the holes 13, 14 which receive screws for securing the fitting to the surface. The hole 13 is lined with an eyelet 16 so that the screw passing therethrough may serve as an earth connection for a lamp contact 18, engaging one terminal of the lamp bulb 19 and formed by twisting a metal strip 17 secured to the underside of the base 10 by the eyelet 16 and also by a pin 20 held between tags 21 pressed o'ut of the strip 17. The other lamp contact 22 is formed from a strip 23 adapted to be engaged by a sliding contact 30 of a switch by a contact 31 connected to an electric supply lead. In an alternative fitting comprising a lamp bulb having a bayonet cap earthed contact strip is curled to form a lamp receiving socket. The current carrying strips may be replaced by metal inserts moulded into the base or by strips or lines of electrically conductive material applied to the surface of the base.
Patent GB-239068-A (GB)
Title: An improved gear
IPC: F04C15/00
Filed: 1924-10-09
Abstract: 239,068. Stevens, G. J. Oct. 9, 1924. Securing together machine elements for the transmission of rotary motion.-In toothed gearing of the kind wherein a driving wheel and a driven wheel in constant mesh have on their shafts other toothed wheels in mesh. as in a rotary pump, the driving-wheel a or the other aligned wheel has limited rotary movement on its shaft b and is driven from the motor &c. shaft by a ring of levers k capable of limited rocking movement. Thus the gear pair external to the pump, which takes most of the drive, is readily compensated for wear. In the arrangement shown, the shaft b, which carries fixedly the driving toothed wheel of the pump pair, carries also a flange c, upon which the levers k pivot. The levers k project on the one hand into recesses g in the driving-wheel a external to the pump, and on the other into recesses i in a head e secured to the motor shaft d. The engaging parts 1, 2 of the levers k are rounded to facilitate the rocking movement of the levers, which allows of the setting movement of the wheel a. In another arrangement, it is the other or pump driving-wheel which is mounted with the rocking levers.
Patent GB-1130351-A (GB)
Title: Improvements in radio signalling systems
Inventor: RYLE MARTIN
IPC: H03D1/22
Filed: 1946-08-13
Abstract: 1,130,351. Homodyne receivers. MINISTER OF TECHNOLOGY. 24 Nov., 1947 [13 Aug., 1946], No. 23983/46. Heading H3Q. In a homodyne receiver an input oscillation is mixed at MX with an oscillation produced in a channel containing a frequency multiplier MULT and an oscillator OSC, the latter being locked in phase by the output from MX. An input oscillation of frequency MF (unmodulated) is fed from a receiver A into MX and mixed with an oscillation of frequency NF from OSC. An output of frequency N-MF is derived in MX from a crystal or other sharplytuned difference-frequency filter and its frequency is multiplied at MULT by (N¸#N-M) and fed to OSC to lock it in phase. OSC supplies an output to a homodyne detector HOM which is also fed with a modulated carrier of frequency NF from a separate receiver B. The output from HOM is passed to a modulationfrequency filter AF and the modulation is available at MOD. An output of frequency #N - M F may alternatively be produced at O. In a modification, Fig. 2 (not shown), the oscillator OSC has a frequency of N - M F and is locked directly by MX, its output being multiplied to NF before being supplied to MX and HOM. The carrier may be wholly or partly suppressed in signal NF.
Patent GB-1336766-A (GB)
Title: Filter units and a filter containing same
IPC: B01D29/15
Filed: 1971-04-19
Abstract: 1336766 Filters PER CORP 19 April 1971 [21 July 1970] 24036/71 Heading B1D Flexible filter tubes 19 (Fig. 6) of pervious material, e.g. glass or polymer fibres, open at one end are supported internally by open support frames 21. The tubes are designed to be hung from a tube sheet G. The support frames have an outwardly directed annular flange 23 at the top end over which the ends 24 of the filter material are folded. The support frames also have exterior projections 28, over which the filter material passes and which are so spaced from the annular flange as to clamp the tube sheet G between themselves and the annular flange. The walls of the frames in the region of the exterior projections are resilient, e.g. by making the frames of resilient material or, if the frames are of non-resilient material, by cutting slots 27 in the walls of the frame at this point, so that the projections may be resiliently forced inwards for the tubes to be fitted into place in the holes in the tube sheet. The projections are biased outwardly, and are held in place by the insertion of a hollow plug 25. The open frame-work of the support frames may be of various types (Figs. 6, 7 and 9-13, not shown). The filter tubes are suspended from a tube sheet G in a filter casing A (Fig, 1) divided by the tube sheet into an inlet plenum (the inlet being E) and an outlet plenum (the outlet being F). A drawn pipe D is fitted. The tube sheet is movable up and down on a slide rod 6 operated by handle 13. The tube sheet in its lower position resting on a flange 4 which is notched for the passage of liquid. When the tube sheet is raised to its upper position, it presses sealably against gasket ring 15 on flange 3 so that passage of liquid to the outlet is only via the filter tubes.
Patent GB-1240112-A (GB)
Title: Improvements in or relating to radial vane machines
Inventor: EICKMANN KARL
IPC: F01C1/32
Filed: 1968-05-21
Abstract: 1,240,112. Rotary sliding vane machines. K. EICKMANN. May 21, 1968 [May 22, 1967], No.24051/68. Heading F1F. A rotor in a sliding vane machine of the kind comprising a rotor mounted for rotation and having radial slots slidably mounting vanes whose outer ends engage an eccentrically mounted track ring or casing part to form a plurality of variable volume working chambers, comprises a central cylindrical body portion and first and second end wall portions, one at each end of the body portion and of larger diameter than the body portion with at least one of the end wall portions separate from and securable to the body portion and radial vane slots extending axially from end to end of the rotor and of radial extent in the end wall portions such that a continuous peripheral portion of each end wall portion remains. The "rotor" may be held stationary and the track ring or casing part rotated. In Fig. 9, end wall portion 206 is formed integral with body portion 202 and an end wall portion 204 together with a cover plate 232 is removably secured to the body portion by bolts 252. The parts 206, 202, 204, 232 together with an end cover 243 adjacent the part 206 are all formed with a central hole of hexagonal cross-section to permit the aligning of the parts on a central sleeve. Recesses 240 in the rear face of the cover plate 232 closed by a plate 246 receive pressure fluid from the working chambers to urge the parts 232, 204, 202, 206 and 243 into sealing engagement with one another and with a stationary control body 272 through which fluid is supplied to and exhausted from the working chambers. In Fig. 1, both end wall portions 104, 106 are removably secured to body portion 102 by bolts 160 which pass through sleeves 158. The bolts 160 also secure end covers 132, 138 and a plate 152 to the end wall portions and the body portion. Each of the parts is formed with a central hole of circular cross-section to permit alignment thereof on a sleeve 163 in which a stationary control body 176 is mounted.
Patent GB-337087-A (GB)
Title: Improvements relating to trawling nets
IPC: A01K73/02
Filed: 1929-08-07
Abstract: 337,087. Griffiths, E., Tasker, E. F., and Binns, H. N. Aug. 7. 1929. Right to Patent relinquished. Nets; trawling-gears.- In trawling- gear in which the otterboards are at a considerable distance from the net, an additional headline A H is provided which is free from the strains which depress the ordinary headline A D. The upper square and wings normally carried by the headline A D may be omitted leaving only the square and wings carried by the headline A H.
Patent GB-443154-A (GB)
Title: Improvements in hydraulic brake and other power transmission systems
IPC: B60T11/224
Filed: 1934-08-21
Abstract: 443,154. Hydraulic brakes. HYDRAULIC BRAKE CO., 84, West Hancock Avenue, Detroit, Michigan, U.S.A. Aug. 21, 1934, No. 24104. Convention date, Sept. 16, 1933. [Class 103 (i)] [See also Group XXIX] In hydraulic brake and other transmission systems comprising a master cylinder with high and low pressure producing pistons means are provided within the pistons whereby the transition from the low to high pressure condition is gradual. A piston 96 comprises low and high pressure heads 90, 98 integrally connected by a tubular part and slidable respectively in the cylinder parts 40, 401 of correspondingly differing diameter. A plunger 110 slidable in the piston carries a valve 114 normally pressed by a spring 118 against packing 116 bearing on the rear of the head 90 so as to cut off the low pressure chamber 901 from reservoir 14. The spring bears also on a part 122 screwed into the piston and which takes the thrust of the operating lever 34. When in operation the piston is moved to the right both of the heads 90, 98 are at first effective, liquid passing from chamber 90<1> to chamber 40<1> through passages 100 until the fluid pressure acting against the valve through passage 94 and against the plunger 110 overcomes the spring 118, unseats the valve to connect chamber 90<1> to the reservoir through passage 94, thus relieving the pressure in chamber 90<1>. The reduction of pressure on the valve causes it to re-close. The opening and closing of the valve continues until the pressure acting on the plunger alone is sufficient to overcome the spring so that the valve remains permanently open with the head 90 ineffective. A byepass 78 normally connects chamber 40<1> to the reservoir through chamber 90<1> and port 76. During return movement of the piston by the spring 106, liquid can flow from the reservoir to the chambers through passages 84, 86, 88, 100 and past cup-washers 92, 102. A double non-return valve 108 serves to retain a light normal pressure in the pipe lines. Indicators and signals, applications of.-A pressure-operated switch connected to the cylinder outlet 44 lights a lamp when the system is operated. In the case of a vehicle this may be the usual stop lamp.