baber/WOPTO huggingface dataset:
Patent GB-1218621-A (GB)
Title: Conversion of olefins
IPC: C07C6/04
Filed: 1968-04-02
Abstract: 1,218,621. Disproportionating olefins. PHILLIPS PETROLEUM CO. 2 April, 1968 [3 April, 1967], No. 15844/68. Heading C5E. Olefins are disproportionated or co-disproportionated in the presence of a disproportionation catalyst (many suitable ones are given), there being added to the olefin feed prior to contact with the catalyst one or more compounds of the formula where M is P, As, Bi or Sb, and each R represents an alkyl, cycloalkyl, aryl, alkaryl or aralkyl group having no more than 15 carbon atoms. In examples, 2-pentene is converted to butenes and hexenes, the added compound being tributylphosphine and the catalyst tungsten oxide on silica.
Patent GB-797213-A (GB)
Title: Manufacture of terephthalic acid
Inventor: O'NEILL WILLIAM ALEXANDER
IPC: C07C51/265
Filed: 1955-06-03
Abstract: Terephthalic acid is made by oxidizing p-diisopropyl benzene with oxygen or an oxygen-containing gas in an aqueous alkaline medium in the presence of a catalyst consisting of a compound of a metal having a variable valency.  The oxidation may be conducted under pressure and at a temperature of not less than 180 DEG  C. in dilute aqueous caustic soda solution in the presence of up to 10 per cent based on the weight of p-diisopropyl benzene of a compound of a metal of variable valency such as titanium, vanadium, chromium, manganese, cobalt or copper or a mixture of such compounds.  Manganese dioxide and acetate and potassium permanganate are mentioned.  In examples: (1) p-diisopropyl benzene, water, caustic soda and manganese acetate are treated with air at elevated temperature and pressure to give terephthalic acid; other examples illustrate the use of (2) potassium chromate and (3) ammonium vanadate as catalysts.  The Provisional Specification is not restricted to the use of an alkaline medium, but relates to the use of aqueous media generally.  In an example, p-diisopropyl benzene and water are treated with air in the presence of potassium permanganate at elevated temperature and pressure to give terephthalic acid.  Specification 331,100, [Class 2 (iii)], is referred to.
Patent GB-277753-A (GB)
Title: Improvements in or connected with apparatus for wrapping sweetmeats and other articles
IPC: B65B11/14
Filed: 1926-06-25
Abstract: 277,753. Forgrove Machinery Co., Ltd., and Grover, F. June 25, 1926. Packeting by wrapping-up.- In a. machine in which caramels and the like are wrapped to form packages with twisted ends, paper &c. is fed from a roll 1 Fig. 1 beneath a tension roll and between continuouslv driven feed rolls 5 and beneath a continuously revolving knife which severs a wrapper. Chains 8 having projection 8<b> forward the wrappers until the leading edge is seized by grippers 11, Fig. 2, on a continuously driven chain 9 passing round polygonal pulleys 10, 10<a>. Each alternate link is formed with a recess 9<a> having an integral forward edge and a pivoted rear edge 9<b> normally drawn inwards by a spring 9<d>. The base of the recess is formed by interleaving prongs carried by the rear and forward walls respectively. The chains 8 are disposed between side chains 12 passing round polygonal pulleys 15, 15<a>, the latter being on a common axle with the pulley 10<a>. Alternate links carry walls 12<b>, corresponding, in the upper reach, with the forward walls of the recesses 9<a>. A wheel 13 carries projections 13<a> which enter the recesses 9<a> and projections 14<b> on chains 14 enter the recesses of the side chains so as to form the wrappers into troughs. Caramels are placed, bv hand or mechanically, into the troughs. The chains 12 turn downwards over the pulley 15, projections 16 relasing the rear walls 9<b> from the open position in which they have held them on the upper reach and allowing them to assume the position shown on the left of Fig. 2. The grippers 11 are opened by the engagement of the tail of the levers 11<a> by a fixed abutment 11<c>, Fig. 1. A wiper 17 folds the rear flap over the top of the caramel, and a plate IS folds down the front flap. The caramel is now engaged on four sides by the wrapper with open tubular extensions. The mechanism for seizing and twisting the extensions is carried on dises 19, Figs. 1 and 6, rotatging at the same, angular velocity as that of the pulley 10. Each disc carries a series of twisting fingers 20, mounted on spindles 21. The fingers are rotated by the engagement of planetary pinions 21<a> with wheels 22 which may be fixed or driven. The pairs of fingers are moved towards each other during the twisting by cams 23, springs 20<a> causing the fingers to close on the wrapper. When the twisting is complete, the lever 9<c>, Fig. 2, carrying the rear wall of the recess 9<a>, is rocked by an incline to free the wrapped tablet.
Patent GB-559322-A (GB)
Title: Improvements in or relating to electrically heated composite fabrics
IPC: H05B3/34
Filed: 1942-11-13
Abstract: 559,322. Compound fabrics ; electric heating. MOND, A. L. Nov. 13, 1942, No. 16086. [Class 140] [Also in Group XI] An electrically heated compound fabric for use in electric heating cushions, blankets or garments comprises two or more layers of uncut pile fabric stuck together with an interposed electric heating resistance. The uncut pile fabric consists of two woven outer layers between which is interposed a layer of pile integral with each woven outer layer. The adhesive may be themoplastic or thermosetting material such as a phenol- or ureaformaldehyde resin, a glycerinephthalic acid resin which may be oilmodified, a vinyl or an acrylate resin. The resins may be mixed or may be used with other adhesives such as cellulose derivatives. Two layers of uncut pile fabric each coated on one side with a layer of adhesive may be united with the aid of heat generated by the interposed electric heating resistance. A thermostatic cut out and a fuse may be provided in the assembly, and the leads to the cut out may be insulated with glass fabric.
Patent GB-780728-A (GB)
Title: Improvements in or relating to steam boilers
IPC: F22G5/10
Filed: 1952-06-26
Abstract: 780,728. Steam superheaters, reheaters. SUPERHEATER CO., Ltd., (Combustion Engineering -Superheater Inc.). June 26, 1952, No. 16099/52. Class 123(3) In a steam boiler comprising a furnace chamber 10 which is lined with steamgenerating tubes 12 and exhausts into a down-pass 18 locating primary and secondary superheater sections 20, 22 respectively, the final superheat temperature is regulated by controlling the heat-absorbing capacity of a supplementary economizer 32 disposed between said superheater sections. As shown, feed-water from a common pipe 25 is supplied to a main economizer 30 and the supplementary economizer 32, in parallel, through branches 26, 27 having valves 28, 29 controlled by a thermostat 34 responsive to the temperature in the superheated. steam outlet headed 24. The boiler may be provided with a further superheater section 23 in front of the section 22. The superheater section 20 may be replaced by a reheater
Patent GB-440472-A (GB)
Title: Improved apparatus for shaping sheet metal
IPC: B21D5/12
Filed: 1934-04-23
Abstract: 440,472. Making tubes. YODER, C. M., 5500, Walworth Avenue, Cleveland, Ohio, U.S.A. April 23, 1934, No. 16196/35. Divided out of 438,790. Drawings to Specification. [Classes 83 (ii) and 83 (iv)] [See also Group XXIII] The apparatus for making heavy tubes from skelp in a continuous process is identical with that described in Specification 438,790.
Patent GB-1274363-A (GB)
Title: Improvements in or relating to carbonating liquids
IPC: B01F3/04
Filed: 1970-04-06
Abstract: 1,274,363. Carbonating. EATON YALE & TOWNE Inc. 6 April, 1970 [28 Aug., 1969], No. 16229/70. Heading B1C. A method of carbonating a liquid comprises introducing the liquid into a chamber 10 until it reaches a predetermined level, admitting CO 2  into the chamber, and mixing the liquid and CO 2  together. The chamber may be provided with a pipe 13 having a two-way valve 16 through which the chamber may be vented to atmosphere when liquid is being introduced or through which CO 2  may be admitted after the desired level has been reached. The valve may be actuated by means of a float switch 25. Mixing may be carried out by means of circulating pump 30 which forces the liquid through pipe 33 and ejects it out of nozzle 34 onto the CO 2  at the top of the chamber. The pump may also be actuated by means of the float switch. The carbonated liquid may be discharged through outlet 48 via mixing valve 44, wherein it may be mixed with syrup. During dispensing of the carbonated liquid, valve 16 may be kept open to CO 2  and the circulating pump may be switched off by means of an appropriate switch. In a modification, Figs. 3, 4 (not shown), separate pipes for venting of air and admission of CO 2  are provided, and mixing is carried out by the entrainment of liquid by entering CO 2  and its discharge onto the surface of the liquid in the chamber.
Patent GB-439190-A (GB)
Title: Improvements in or relating to electrical signalling systems
IPC: H02J13/00
Filed: 1934-05-31
Abstract: 439,190. Signalling over power circuits. AUTOMATIC ELECTRIC CO., Ltd., Strowger Works, and ROSEBY, P. N., 57, Moscow Drive, both in Liverpool. May 31, 1934, No. 16281. [Class 40 (i)] In a system for transmitting high frequency signals over direct or alternating current supply mains, the signalling current is generated by an alternator driven by a motor the power of which and the insertion of the alternator being such that an appreciable time is required to speed up the alternator. When the desired speed is attained the output of the alternator is connected to the mains and the kinetic energy of the moving parts supplies substantially all the signalling energy. In the system shown, a time switch TS connects the supply to motor M driving the alternator HFA, and subsequently TS energizes a switch CO which connects the output of HFA across a choke CH in the lead which grounds the neutral wire. After a short time TS disconnects the motor and de-energizes switch CO. The motor may be disconnected during the actual application of the signal. The control may be manual or in accordance with some condition, e.g. light, heat, &c. for control of street lighting, water heaters &c. The connection and disconnection of the alternator to the mains may be effected by a centrifugal switch. A design of alternator giving frequency of 5000 cycles is described. Specifications 431,349, [Group XXXVII], and 435,564 are referred to.
Patent GB-1163251-A (GB)
Title: Oil Burner Systems with a least Two Parallel-Fed Burners or at least Two Groups of Parallel-Fed Burners
IPC: F23N5/18
Filed: 1968-04-04
Abstract: 1,163,251. Oil burner fuel systems. SULZER BROS. Ltd. 4 April, 1968 [4 April, 1967], No. 16303/68. Heading F4T. An oil burner system has at least two groups of parallel-fed burners or at least two parallelfed burners connected by branch feed lines 4, 4<SP>1</SP>, 4<SP>11</SP> to a main feed line 3 and branch return lines 10, 10<SP>1</SP>, 1011 leading to a main return line 11, the main lines having pressure regulating elements 7 and 12 respectively, and has means for switching on or off at least one burner or burner-group, comprising non-return valves 16<SP>1</SP>, 16<SP>11</SP> in the branch return lines and by-pass lines 15<SP>1</SP>, 15<SP>11</SP> each with regulating valves 17<SP>1</SP>, 17<SP>11</SP>, respectively, connected to the branch return lines, each of these lines 15<SP>1</SP>, 15<SP>11</SP> by-passing the non-return valve in its respective return line and also by-passing the pressure regulating element 12. In operation, a pressure-sensitive switch 25 in line 11 responds to changes in pressure in that line caused by a signal fed into an oil-flow control unit 62, thus energizing servomotors 26<SP>1</SP>, 26<SP>11</SP> to operate valves 17<SP>1</SP>, 17<SP>11</SP> respectively which cause shut-off of their respective burners or burner-groups. In a modification, control valves which reverse the fuel flow are provided between the branch feed lines and the branch return lines on one hand and the burners on the other, each burner having an interior valve which opens or closes the burner fuel nozzle according to the direction of the fuel flow.
Patent GB-407574-A (GB)
Title: Improvements in and relating to pneumatic tubular and other carrier despatch systems
IPC: B65G51/44
Filed: 1933-06-07
Abstract: 407,574. Pneumatic dispatch apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Chambers, D. E. ; 17, Pinewood Avenue, Schenectady, New York, U.S.A.) June 7, 1933, No. 16379. Convention date, June 16, 1932. [Class 116.] In a pneumatic tubular or other carrier system in which the switching operation for the discharge of a carrier at its appropriate station is selectively controlled by spaced magnetic rings on the carrier co-operating with similarly spaced electromagnets on the conveying tube or path of the system, a vapour electric discharge device coupled to the coils of the magnets and to a source of alternating current normally passes no current to the coil of a magnet controlling the switching means, but is operated on the passage of a carrier with magnetic strips spaced similarly to the magnets of that station. Each carrier has spaced magnetic rings 31, 32, 33 and the tube is provided, in advance of a branch tube 10, with spaced magnet cores 20, 21, 22 of which the windings 23, 24, 25 are connected in parallel in a circuit including the secondary 45 of a transformer 41 of which the primary 40 is connected across A.C. mains 38, 39. The primary 42 of a grid transformer 43 for a vapour electric discharge device 47 is connected through a resistance 42<1> across the mains 38, 39 and through the coils 23, 24, 25 to the secondary 45 of the transformer 41. Normally during each half cycle in which the anode potential is positive, the grid of the device 47 is negative, due to the transformer 43, and is sufficiently advanced in phase by the condenser 44 to prevent flow of current through the device 47. When a carrier having its rings 31, 32, 33 positioned identically with the cores 20, 21, 22 passes through the tube, the inductance of the three windings 23, 24, 25 is simultaneously increased and the phase of the grid potential is sufficiently retarded for the discharge device 47 to pass current from the beginning of the positive half cycle. Relay 51 operates, closing a holding circuit for itself at contacts 53, 54 and effecting at contacts 52 the operation of relay 15, the solenoid 16 of which actuates a pivoted deflecting member 12 to divert the carrier into the discharge tube 10. The impact of the carrier against a pivoted door 37 opens the contact 54 in the holding circuit of relay 50 which releases and breaks the circuit of relay 15.
Patent GB-120441-A (GB)
Title: Improvements relating to Railway Signalling and High Frequency Selective Devices for use in connection therewith.
IPC: B61L1/18
Filed: 1917-11-09
Abstract: 120,441. McKenzie, Holland, & Westinghouse Power Signal Co., (Union Switch & Signal Co.). Nov. 9, 1917. Electrical systems, automatic.-A selective device through which a relay or other apparatus is energized by alternating current of a predetermined frequency but remains substantially unenargized if current of another frequency is supplied comprises a combination of impedance circuits having predetermined electrical characteristics according to the frequency of the current. Fig. 1 shows one arrangement of impedances 12, 13, 14, 15 for supplying current to a signal-controlling relay R from a transformer F which receives current from the track rails 1, 2 and the transformer M. Current of the frequency of the signalling circuit produces a substantial difference of potential between the points d, f, but any current from the power circuit L, which may energize the transformer F owing to defective in. ductance bonds 3, produces no effective difference of potential. Figs. 4, 5, 6, and 7 show alternative arrangements of non-inductive resistances, reactances, and condensers for the same purpose.
Patent GB-318660-A (GB)
Title: An improved manufacture of an air-pump connector
IPC: B60C23/10
Filed: 1928-06-06
Abstract: 318,660. Heyne, W. O., and Clark, A. G. June 6,1928. Couplings, disconnectible; stuffing-box joints.- In an air-pump connector of the kind shown, the connector body 100 is formed from a flat sheetmetal blank 1, of approximately diamond shape with rounded angles 2 - - 5, which is subjected to a drawing operation. The blanks are punched, preferably in echelon, from a flat strip of the metal.
Patent GB-374626-A (GB)
Title: Improvements in or relating to brakes
IPC: B61H5/00
Filed: 1931-06-05
Abstract: 374,626. Brakes. AMERICAN CABLE CO., Inc., 75, East 45th Street, New York, U.S.A.-(Assignees of Conner, E. A. ; Stratford, and Johnson, C. G. ; Bridgeport, both in Connecticut, U.S.A.) June 5, 1931, No. 16501. Convention date, Aug. 30, 1930. [Class 103 (i).] Brake shoes S, S<1> are supported on opposite sides of a rotating disc D by a link composed of a plurality of sheet metal plates 11, 12 spaced apart and rigidly held in position by tubular members. To the shaft of one of the shoes is fixed an adjusting plate 50 having a series of holes, one of which is adapted to be transfixed by a locking bolt. A brake shoe shaft is locked in position by U-shaped members 40, having bevelled portions engaging the shaft and forced into engagement therewith. The plates 11, 12 are provided with strengthening flanges 13 and bosses 14 through which are passed the tubular members 19, the ends of which are spun over. These members are received in spacing tubular members between the plates 11, 12. Alternatively the tubular and spacing members may be integral. To permit a floating movement of the brake shoes the link is mounted on a shaft 32 which is locked by means of a bolt 61 having a cut-away part engaging a reduced part of the shaft. The bolt is supported in slots in the side of a U-shaped positioning member 60 which has lugs engaging in holes in the side-plates and forms an additional spacing member for the sideplates, and the shoes S, S<1> each have an eccentric mounting so that one can be operated by a lever 37 and rod 38 to bring the shoes into engagement with the disc D and the other shoe can be adjusted to take up wear &c. This eccentric mounting is provided by forming the parts 31 of the shafts which carry the shoes off set from the parts 27, 28 mounted in the link. The operating shaft 27 is mounted in antifriction bearings 33. The adjusting shaft 28 can be rotated and is locked by the members 40, Fig. 7, drawn together by a bolt 43 and slidingly engaging in apertures in a U-shaped yoke forming an additional spacing and strengthening means for the side-plates. The tubular members 19 and the spacing member surrounding the shaft 28 are cut away to allow ,the wedge members to engage and lock the shaft. The shaft 28 is also retained in position by the adjusting plate 50 locked on the shaft and having a plurality of holes 55 one of which is engaged by a retaining bolt 56. This bolt is provided with a U-shaped strengthening and spacing member between the side-plates.
Patent GB-329518-A (GB)
Title: Improvements in and relating to electric cooking ovens
IPC: F24C7/06
Filed: 1929-05-29
Abstract: 329,518. Betting, C. R. May 29, 1929. Resistance ovens.- In an electric oven, the heating element extends peripherally around the cooking space and is formed of a number of separate units. The element comprises a rectangular frame d, e, f, g, slidable into an external oven casing and having on its outer surface grooves h which accommodate resistance wires i maintained in position by a metal covering or lagging k; an inner sheet l of asbestos may be used. A modification of the heating member is formed from units r, Fig. 6, adapted to fit together along contacting edges s, in which holes or ducts t ensure circulation of the heated air. The wire coverings in this case may be dispensed with and the groove edges need not contact with the inner surface of the outer casing. The hinges of the oven door may be carried by supports on either side of the framework, duplicate latch catches being provided.
Patent GB-662697-A (GB)
Title: Improvements in and relating to fluxes and solders
IPC: B29C65/02
Filed: 1949-06-22
Abstract: A solder component preformed to the shape of the joint to be soldered has an integral coating of flux dispersed in a thermoplastic material.  The latter may be polymethyl methacrylate, which may be plasticized with dibutyl phthalate or dioctyl phthalate and applied in a solvent such as toluol or xylol with or without alcohol; or nitrocellulose, which may be plasicized with dibutyl oxalate, tributyl citrate or camphor, ethyl acetate being used as solvent; or polymethyl methacrylate and nitrocellulose together; or polybutyl methacrylate in toluol; or polystyrene in xylol.  Butyl oleate and a colouring material such as fluorescein may also be present.  The flux may be sodium or potassium fluoride mixed with borax or boric acid or both; or zinc chloride.  The solder may comprise 30 per cent silver, 25 per cent zinc, 25 per cent copper and 20 per cent cadmium; or 96 per cent tin and 4 per cent silver.  Specification 646,377, [Group XXII], is referred to.  According to the Provisional Specification, a similar flux may be applied to the surfaces to be joined and may contain butyl borate.
Patent GB-420914-A (GB)
Title: Improvements in compression refrigerating machines
IPC: F25B1/04
Filed: 1933-06-09
Abstract: 420,914. Refrigerating. VIN, R. J. E. C., 91, Avenue des Ternes, Paris. June 9, 1933, No. 16536. Convention date, June 11, 1932. [Class 29] Compression machines.-In a machine mainly adapted for low pressure refrigerants such as carbon tetrachloride and ethyl chloride a rotary compressor 1 discharges mixed gas and lubricant through a pipe 9 against a cylindrical baffle 10 in the condenser chamber 12, where the lubricant collects below the condensed refrigerant. The lubricant flows back under pressure through a pipe 17 extending through the compressor shaft, while the refrigerant passes by an overflow pipe 23 to an intermediate collecting chamber 24, whence it is admitted through a valve 25 controlled by a counterweighted float 26 to the header chamber 8 of the evaporator. In order to return any lubricant from the evaporator the whole apparatus is adapted to be inverted about trunnions 35. The compressor is driven by a pulley 5 or a directly coupled motor at the top of the shaft. The cooling-water flows alternately upwards and downwards in coils 15. The compressor draws vapour from the header 8 by a pipe 7, and the condenser chamber is fitted with a charging valve 22. Any lubricant carried into the header 8 collects in a well 32 formed around the end 29 of the evaporator coils 31. In a modification the intermediate collecting chamber for refrigerant is arranged within the evaporator header, which is secured by a single central bolt to the bottom of the condenser. In another modification the compressor discharges into a gilled air-cooled condenser coil 45, Fig. 5, from which refrigerant is led by a pipe 9 into a lubricant separator 12. The oil is led back to the compressor by a pipe 17 and the refrigerant to the evaporator by a pipe 23. A fan 49 circulates cooling-air through the casing 2 around the condenser coils. The compressor and condenser 39, 12, Fig. 4 may be mounted together on the outside of a refrigerator door 40 hinged along its bottom edge so that the apparatus may be inverted. The evaporator 8, 31, with the refrigerant receiver 24, are mounted on the inside of the door.