baber/WOPTO huggingface dataset:
Patent GB-1024351-A (GB)
Title: Process for the manufacture of a co-polymer of tetrafluoroethylene, ethylene and isobutylene
IPC: C08F210/00
Filed: 1963-10-01
Abstract: Copolymers are prepared by copolymerizing 99.99 to 90.00 mol per cent of a mixture of tetrafluoroethylene and ethylene having a molar ratio in the range 30 : 70 to 70 : 30 together with 0.01 to 10.00 mol. per cent of isobutylene.  Polymerization may be effected in aqueous emulsion in the presence of an alcohol, e.g. methanol, ethanol, n-butanol, tertiary butanol, amyl alcohol or ethylene glycol; polymerization initiator, e.g. hydrogen peroxide, cumene hydroperoxide, alkali metal persulphates, mixtures thereof with reducing agents, and azo compounds; emulsifiers, e.g. polyfluorocarboxylic acids, polyfluorochlorocarboxylic acids and salts thereof; buffers, e.g. sodium borate and disodium phosphate; and regulators, e.g. mercaptans, disulphides and diazothio ethers. Examples describe the copolymerization of tetrafluoroethylene, ethylene and isobutylene in aqueous emulsion in the presence of ammonium persulphate, sodium borate, tertiary butanol, and (1) potassium perfluorooctanoate and n-dodecyl mercaptan, and (2) ammonium perfluorooctanoate.  The copolymers may be used for coating, impregnating and moulding to form shaped articles such as pipes, tubes, sheets and films.
Patent GB-1294211-A (GB)
Title: Caprolactam phosphonates
IPC: C08L77/00
Filed: 1970-08-11
Abstract: 1294211 Caprolactam phosphonates UPJOHN CO 11 Aug 1970 [4 Sept 1969] 38643/70 Heading C2P The invention comprises compounds of the Formulµ I and II where R 1  and R 2  are each hydrogen or C 1-12  hydrocarbyl, halohydrocarbyl or hydroxyhydrocarbyl, or R 1  and R 2  together are C 2-10  alkylene, haloalkylene or hydroxyalkylene, the oxygen atoms to which R 1  and R 2  are attached being bridged by 1 to 3 carbon atoms, and mixtures of the compounds of Formulµ I and II. A mixture of the compounds of Formulµ I and II may be prepared by a Beckmann rearrangement of an oxime of Formula III using, for example, p-toluene-sulphonyl chloride or phosphorus pentachloride as reagent. The mixture may be resolved into the separate isomers by conventional methods. The end form of the compounds of Formulµ I and II is formed as an intermediate if PCl 5  is used as the Beckmann reagent, and may be converted to the final product by treatment with caustic soda. The oximes of Formula III may be obtained by reacting a corresponding cyclohexanone with hydroxylamine. 3,5,5 - Trimethyl - cyclohexan - 1 - on - 3 - yl phosphonic acid may be prepared by hydrolysing the corresponding diethyl ester. The compounds of Formulae I and II may be used as flame retardants.
Patent GB-1277242-A (GB)
Title: Preparation of carboxylic acids and esters
IPC: B01J23/48
Filed: 1969-08-01
Abstract: 1277242 Rhodium-containing catalyst MONSANTO CO. 1 Aug 1969 [2 Aug 1968] 38646/ 69 Addition to 1233121 Heading B1E [Also in Division C2] A catalytic composition comprises (i) a rhodium component, (ii) another metal or compound of a metal from Gps. IB, IIIB, IVB, VB, VIB, VIII, the lanthanides and the actinides, dispersed on (iii) an inert support, the catalyst being used together with (iv) a halide promoter component comprising bromine, iodine or compounds thereof. The halide may be added as hydrogen halide, organo halide, metal halide, or ammonium, phosphonium, arsenium or stibonium halide. The rhodium component may be a salt, complex containing carbon monoxide and the halide promoter, decomposiiton products of a salt or in a reduced form. Specified for the other metals are: Cr, W, Ti, Zr, V, Mo, La, Th, U, Ni and Fe. Specified supports are pumice, alumina, silica, silica-alumina, magnesia, diatomaceous earth, titania, zirconia, clays, e.g. attapulgite, lime, magnesium silicate, silicon carbide, carbon, zeolites, solid foams and organic polymers, preferably as particles of size of 400 mesh/in, to 1/2 in. and pore volume 0.03 to 2.5 cm<SP>3</SP>/gm. The examples describe catalysts comprising Rh plus W, Ti, Br, Pd, V, La, Th, U, Fe, Ni, Ca or Ag, the support being carbon and the halogen promoter being iodide added with the reactant feed when using the catalyst. The compositions are prepared by impregnation.
Patent GB-361667-A (GB)
Title: Improvements relating to the manufacture of mesityl oxide and homologues thereof
IPC: C07C45/66
Filed: 1930-12-23
Abstract: <PICT:0361667/IV/1> Mesityl oxide or homologues thereof are obtained by distilling diacetone alcohol or the corresponding homologues thereof in the presence of catalysts such as phosphoric acid, zinc chloride, concentrated sulphuric or hydrochloric acid, or iodine, while continuously maintaining sufficient water in the reaction mixture to enable the mesityl oxide formed to be eliminated as a gaseous azeotropic or approximately azeotropic mixture thereof with water.  With this end in view the aqueous distillation mixture is preferably maintained of substantially constant composition, and this may be done by returning to the reaction vessel a sufficient amount of the water contained in the azeotropic mixture from the layer rich in water which forms when the mixture is condensed.  According to an example, diacetone alcohol, water, and phosphoric acid are distilled at atmospheric pressure in a reaction boiler 1 to which the diacetone alcohol is continuously supplied from a tank 12.  The azeotropic mixture of mesityl oxide and water which comes off ascends through a column 2, is withdrawn therefrom through a pipe 2a, and after condensation in a coil 5 collects in a vessel 6, wherein it separates into two layers.  The upper layer consisting mainly of mesityl oxide is led through a pipe 7 to the top of an indirectly heated column 8, from the top of which a gaseous mixture of mesityl oxide and water passes off to a condenser 16, whence the condensate returns to the vessel 6.  Pure mesityl oxide flows from the foot of the column 8 through a pipe 9.  The lower layer in the vessel 6, consisting mainly of water, is divided into two portions, one of which corresponding to the amount of water formed in the reaction vessel is eliminated by a pipe 10, and may subsequently be treated for the recovery of mesityl oxide therefrom, the other portion being returned to the vessel 1 by a pipe 11.  The vapour mixture passing out at the head of the column 2 is condensed in a condenser 13.  The resulting liquid mixture containing any acetone present in the original diacetone alcohol or formed therefrom is returned by a pipe 14 to the column 2, while the acetone is separated gradually from the mixture and withdrawn through a pipe 3 at a suitable velocity.  The liquid from the foot of the column 2 returns to the reaction vessel through a pipe 4.  The separation of the water-mesityl oxide mixture may also be carried out in an independent continuous or discontinuous process.  The distillation may be effected at pressures other than atmospheric.  As an example of the production of homologues of mesityl oxide, the unsaturated ketone <FORM:0361667/IV/1> is obtained in a similar manner from the corresponding tertiary alcohol formed by the condensation of methylethyl ketone.  A mixture of the isomeric ketones <FORM:0361667/IV/2> <FORM:0361667/IV/3> may also be obtained from the secondary alcohol corresponding to the first, which alcohol is formed by the condensation of methylpropyl ketone.
Patent GB-853855-A (GB)
Title: Mold for continuously casting metals
IPC: B22D11/124
Filed: 1957-05-09
Abstract: 853,855. Continuous - - casting - machines. AMERICAN SMELTING & REFINING CO. May 9, 1957 [Aug. 27, 1956], No. 38727/59. Divided out of 853,853. Drawings to Specification. Class 83 (1). A continuous-casting-mould is formed, adjacent its withdrawal-end, with a number of recesses which are supplied with a coolant to contact the casting before it emerges from the mould. The description is identical with that of Specifications 853,853 and 853,854, which are referred to.
Patent GB-878497-A (GB)
Title: Method of and apparatus for annealing strip metals
IPC: C21D9/54
Filed: 1957-12-13
Abstract: 878,497. Annealing coiled strip. WILSON, L. Dec. 13, 1957 [Feb. 13, 1957], No. 38748/57. Class 72 A method of annealing strip metal includes the steps of open re-coiling the strip into an opened coil the laps of which are spaced apart and subjecting the opened coil to an annealing temperature by forcing heated gas vertically between the laps of the open coil for a period sufficient to effect heating of the strip to an annealing temperature all the while maintaining the axis of the coil vertical. An unannealed coil is set on rack R on turn table 1 and the strip lead through braking system B, which is used to maintain a back tension during re-coiling, and on to mandrel 17 by which the end of the strip is gripped. Turntable 7 driven by motor 16 rotates mandrel 17 and rack R on to which the opened coil is wound, each lap being separated by the continuous introduction between the laps of cord 29. This cord may be round or flat with a thickness of 1¢ to 3 times the thickness of the strip and it may be made of a variety of materials including nylon. When the open re-coiling is completed, the cord 29 is removed from the coil by means of spool 28 driven by motor 35 drawing it from the coil through guides 38 and 36 (Fig. 3). The open coil on rack R is transported to the furnace and covered by an inner gas tight cover F and an outer heating bell G. Combustion tubes 68 heat the furnace and its contents and the inner cover F is filled via pipe 75 with an inert gas which is circulated through the coil by fan 42. After annealing, the open coil on its rack R is placed on turntable 1 and re-coiled into a tight coil. Specifications 878,499 and 878,500 are referred to.
Patent GB-968593-A (GB)
Title: Method of printing workpieces
IPC: B41L5/14
Filed: 1960-11-14
Abstract: 968,593. Selective printing. AUTOGRAPHIC BUSINESS FORMS Inc. Nov. 14, 1960 [April 11, 1960], No. 38951/60. Heading B6F. A method of printing bank-cheques or like workpieces comprises pre-printing on a continuous strip 10, matter which is common to all the separate cheques, thereafter while the strip is still in a continuous form printing a predetermined number of cheques with matter unique to its kind at either or both printers 13, 14 and then severing each cheque from the continuous strip 10 to form groups of separate cheques, each group containing cheques of the same kind. The pre-printed strip is fed by endless pin-tractor bands 18, 19 which engage perforations in one side of the strip. In the case where there is more than one strip transfer material is fed in between. The unique matter to be printed and the number of cheques to be printed is determined by a punched card control unit 11 and the cheques are printed consistently at one line position by the printer 13 and at another line position by the printer 14, the line position being relatively adjustable by means of a slidingly mounted pin-wheel 22. After printing, the perforated edges of the strips are removed by longitudinal cutters 25 and the strips are cut into separate cheques by the transverse cutters 24.
Patent GB-1206845-A (GB)
Title: Improvements in or relating to a process for calcining limestone or dolomite and to a shaft furnace therefor
IPC: F27B1/16
Filed: 1968-08-15
Abstract: 1,206,845. Shaft furnaces. RHEINISCH-WESTFALISCHE KALKWERKE A.G. 15 Aug., 1968 [16 Aug., 1967], No. 39046/68. Heading F4B. A combustion air supply through different sectors of a cooling zone of a shaft furnace 12, in which limestone or dolomite is calcined, is regulated in dependance on temperature variations across the furnace shaft in the compensation zone (not shown), to promote even burning over the whole furnace cross-section. Air for both cooling and combustion, from blower 14, is supplied both centrally through pipe 1 and supply inlet 2, and through radial pipes 11 supplied through branch pipe 15 and annular header 10. Dampers 13, 16 and 17 regulate the air flow to the various furnace sectors. In a modification (Fig. 1, not shown) the air supply to each of the radial pipes is from an independant blower separate from that used to supply the central pipe and supply inlet. Adjustable dampers again give control of the flow through each pipe. In another embodiment, Fig. 5, regulation of the air supply to the furnace sectors is effected by cable operated segmental valves 25 mounted in the supply inlet 2. Alternatively (Fig. 4, not shown) a rotary slide valve may replace the segmental valves or else (Fig. 3, not shown) the various sectional outlets of the supply inlet 2 may each be connected to an independently operable blower.
Patent GB-974466-A (GB)
Title: Pulse peak detector circuit
IPC: H03K5/1532
Filed: 1963-10-04
Abstract: 974,466. Magnetic drum data stores. THOMPSON RAMO WOOLDRIDGE Inc. Oct. 4, 1963 [Oct. 15, 1962], No. 39268/63. Heading G4C. [Also in Division H3] In a circuit for shaping the pulses from a magnetic drum store, the pulses are combined with their first and second differential to produce output pulses having a characteristic corresponding in time to the peak of the input pulses. In Fig. 2, bipolar pulses (A, Fig. 3) from one head of a high speed drum store are applied to an input terminal 19. Positive portions exceeding a bias value pass through diode 21 to the emitter electrode of a transistor 22 to cause the transistor to conduct and negative portions exceeding a bias value pass through diode 21a to the base to also cause the transistor to conduct. Accordingly, unidirectional pulses B having a clipped base level are provided at the output of the amplifier 26, 27. Diodes 28, 29 protect the input circuit and the signal level is such that the transistors are never cut-off. The output B of the amplifier is applied via a differentiator 30 to an amplifier 41, 45, 50, 54 producing the wave-form C at the collector of stage 41 and the waveform D at its output. The stage includes a symmetrical limiter 42, 43, 44 and has feedback via a resistor 49. The output D of the amplifier is applied to one stage 61 of a gate 60 and also via a second differentiator 70 to produce the second differential signal E at the input of gate stage 63. The third stage 64 of the gate receives an input F via a low pass filter 80 from the output B of amplifier 27, the filter including a discharging diode 83 to steepen the trailing edges of the pulses. The gate output, at their common emitter connection, follows the most negative of the input signals so that waveform G is produced having a sharp peak at the peak of the input signal. This signal is clipped in a comparator 91, 93, 94 at a level determined by the base potential of a transistor 93 to produce a waveform H. This is differentiated at 100 to produce waveform I and applied to a normally conductive complementary bi-stable pair 111, 112 which is periodically reset by clock pulses at 115. Accordingly output pulses J of positive or negative polarity are available at terminals 114 or 120, the leading edge of which correspond with the peak of the signal from the drum. It is stated that the output bi-stable circuit 111, 112 could be replaced by a monostable circuit.
Patent GB-1503783-A (GB)
Title: Multi-way selection valve
IPC: A61M5/14
Filed: 1975-09-25
Abstract: 1503783 Valves ETHICON Inc 25 Sept 1975 [26 Sept 1974] 39295/75 Heading F2V A selection valve for administration of intravenous fluids has a body 11 in which selective connecting means 45 is operable to connect any one of three inlets 15, 17, 19 or any two adjacent inlets, with an outlet 21; the selective connecting means having a passage 55 with mutually aligned ends which gives straight flow therebetween. As shown a rotatable plug 45 is retained with a fluid tight fit in a cavity 13 by engagement between a ring 53 and groove 23. Detents 27, 57 for plug position and stops 59 are provided. Tabs 31 are provided for attachment of the valve to an immobile object. Indicia (61-71), Fig. 1 (not shown), are provided for the various valve conditions.
Patent GB-989209-A (GB)
Title: Re-sealable bag
IPC: B65D33/18
Filed: 1963-10-07
Abstract: 989,209. Resealable bags. DOW CHEMICAL CO. Oct. 7, 1963 [Oct. 24, 1962], No. 39343/63. Heading B8K. A bag 10 opened by a tear string 18 is resealed by means of an area of pressure sensitive adhesive 20. The bag may be made from one or two sheets sealed by heat or adhesive along four or three edges and may include a bottom gusset fold. Notches 36 facilitate use of the tear string 18 which in other embodiments is a tear tape or tear line. The bag may be transparent or translucent, and may include semi-rigid walls. The area of pressure sensitive adhesive has a protective cover 22.
Patent GB-1273486-A (GB)
Title: Anode for use in an electrolytic cell
IPC: C25B11/03
Filed: 1970-08-19
Abstract: 1,273,486. Anode structures. ELECTRONOR CORP. Aug. 19, 1970 [Nov. 28, 1969], No.39961/70. Heading C7B. An anode structure 12, for use in an electrolytic cell 10 having a base 14, sides 15 and a cover 27 for electrolysis of brine solution to produce Cl 2  and NaOH, particularly a flowing mercury cathode cell, comprises an anode face 30 connected to at least one inverted U-shaped conducting bar 31 e. g. of Ti, Zr or alloy thereof in turn connected to at least one lead-in conductor 24 e.g. of Cu, for carrying electric current, e.g. from at least one bus-bar 26, through the cell cover to the conducting bar(s) and the anode face, the arms of the conducting bar(s) being evenly spaced across the anode face and extending from end to end thereof. The or each conductor 24 may be connected to the bar(s) 31 by screw-threaded Ti bosses 32 and secured to one or more anode supports 23, supported via I-beams 20 from members 18 spanning the cell and mounted on adjustable posts 19; a Ti sleeve 37 may protect the or each conductor inside the cell. The anode face 30 is a Ti or Ta open-work base e. g. of foraminous or expanded form, wire screen or mesh or gauze, or punched or slotted sheet, covered with a conducting or semi-conducting electrocatalytic coating: e. g. of (a) a major portion of TiO 2  or Ta 2 O 5  and a minor portion of Pt group metal oxide; or (b) electro- or chemically deposited Pt group metal. The or each conducting bar may have gas escape holes therein and notches along its arms for levelling adjustment of the anode face. The anode structure may be used for other salt solutions or fused salts.
Patent GB-1483180-A (GB)
Title: Suspension systems for vehicles
IPC: B60G5/047
Filed: 1974-07-22
Abstract: 1483180 Road vehicle suspensions R J RIPPON and H C RIPPON 22 July 1974 [24 Aug 1973] 40120/73 Heading B7D The body or chassis of a road vehicle is mounted on two or more pairs of laterally spaced wheels by a spring suspension system comprising two laterally spaced spring assemblies which are both positioned either wholly rearwardly or wholly forwardly of one laterally spaced pair of wheels and each extend into the space behind or ahead of a different wheel of that pair, each spring assembly presenting resilience at laterally spaced positions that resists opposite relative sideways movement of the body and the wheels. As shown two spring assemblies 3, 4 are mounted on the vehicle chassis 16 between upper beams 1, 2 to suspend a lower floating beam 5 which is pivotally attached to rocker beams 7 connected to tandem axles 9, 10. Movement of the floating beam 5 relative to the beams 1 is also controlled by vertical guides 11, 12 and a transverse radius rod 13. Radius rods 8, 14, 15 provide axle location. The spring assemblies 3, 4 each comprise an opposed pair of inclined rubber spring units as shown in Fig. 13 or a conical rubber spring unit. A shock absorber 21 is connected between the beam 1, 2 and each end of the beam 5, a rubber buffer 22 limits upward deflection of each spring assembly 3, 4, and a cable 23 limits downward deflection when the vehicle is lifted by a crane. In another embodiment (Fig. 11, not shown) the tandem axles 9, 10 are replaced by short axles which are pivotally mounted on the ends of the rocker beams and each carry a pair of wheels. The invention may also be applied to a suspension in which the pairs of laterally spaced wheels are arranged four-in-line along a single axis.
Patent GB-1203658-A (GB)
Title: Ventilating means
IPC: F24F13/08
Filed: 1967-09-04
Abstract: 1,203,658. Ventilators. PHILIPS' GLOEILAMPENFABRIEKEN N.V. 4 Sept., 1967 [7 Sept., 1966], No. 40346/67. Heading F4V. To enable the flow pattern of air delivered from a ventilation system to be adjusted outlets 8, 9 are slidable with respect to one another in the wall of a duct 5. In one extreme position the flow from each outlet is directed between the outlets in the other row, in the other extreme position the outlets are opposite one another and there is maximum interference of the two air flows. Slides 6, 7 may alternatively take the form of circular rods so that by twisting each rod the initial inclination of the jet can be adjusted. The longitudinal movement of the rows of outlets can be manual or effected automatically by a temperature control device. The duct could be the space above a false ceiling and each row of outlets could be circular or curved instead of straight.
Patent GB-969827-A (GB)
Title: Flash cavity in electrical connector insulator
IPC: H01R13/422
Filed: 1962-10-25
Abstract: 969,827. Two-part couplings. CANNON ELECTRIC CO. Oct. 25, 1962 [Oct. 31, 1961], No. 40470/62. Heading H2E. [Also in Division B5] The resilient insulating body 10 of a connector has contact-receiving bores 16, each of which is provided with an annular cavity 64 adjacent to a projecting flash of material 60 resulting from the body moulding process, so that when a contact 70 is inserted into bore 16, it deflects the flash 60 out of its path into the cavity 64. The pin contact 70 is axially retained in the bore 16 by the engagement of a collar 76 and an enlarged portion 74 on its stem with rearwardly and forwardly facing shoulders 18, 22 and 20 in the bore 16. Connecting wires may be crimped, soldered or welded to the ends of connector contacts before insertion into body 10. The details of the mould structure, dummy pins and moulding process are described (see Division B5) Specification 968,707 is referred to.