baber/WOPTO huggingface dataset:
Patent GB-1156845-A (GB)
Title: Improvements in or relating to Metal Casting.
Inventor: WARDELL ANTHONY CHARLES
IPC: B22D27/18
Filed: 1966-08-16
Abstract: 1,156,845. Casting processes. FOSECO INTERNATIONAL Ltd. 27 July, 1967 [16 Aug., 1966], No. 36626/66. Heading B3F. [Also in Division C7] In a process of casting steel ingots, e.g. continuous casting, the molten metal is top poured into the mould through a flux composition comprising one or more fluorides, one or more alkali metal carbonates and one or more polynuclear aromatic compounds. The fluoride may be wholly or predominantly an alkaline earth metal fluoride, e.g. calcium fluoride, and the carbonate may be sodium carbonate. The flux may further contain a polynuclear aromatic compound such as naphthalene, acenaphthalene. diphenyl, diphenylmethane, indene, fluorene, or phenanthrene; calcium oxide; and ferrosilicon. A preferred flux composition includes (percentages by weight), alkaline earth metal fluoride 25-90%, alkali metal carbonate 1-30%, alkali metal fluoride or complex fluoride 0-10%, anthracene or other polynuclear aromatic compound 0-20%, calcium oxide 0-35%, ferrosilicon 0-20%. Specific examples of flux are (1) calcium fluoride 29%, sodium carbonate 3%, sodium aluminium fluoride 7%, ferrosilicon 12%, calcium oxide 46% and anthracene 3%; (2) calcium fluoride 75%, sodium carbonate 22¢%, sodium fluoride 2¢%; and (3) calcium fluoride 77¢%, sodium carbonate 20%, anthracene 2¢%.
Patent GB-1144256-A (GB)
Title: Reconstitutable dry coconut powder
Inventor: NOZNICK PETER PAUL
IPC: A23L25/00
Filed: 1967-08-10
Abstract: 1,144,256. Dry coconut milk powder. BEATRICE FOODS CO. 10 Aug., 1967 [20 Dec., 1966], No. 36696/67. Heading A2B. A dry coconut milk powder, which is reconstitutable in water to give a coconut milk with a fresh taste, contains a protein, for example sodium caseinate, lactalbumin, soy protein, or egg protein, in an amount sufficient to provide emulsion stability, and an emulsifier selected from partial esters of glycerol and polyglycerol with a higher fatty acid, that is to say, one having at least six carbon atoms. Dextrin in an amount sufficient to reduce tackness may also be present. The product may be obtained by grinding coconut meat, preferably in the presence of water, filtering to remove coarse solids, adding the other ingredients, and drying, for example, by spray drying, if desired with prior homogenisation.
Patent GB-1322214-A (GB)
Title: Carbon black furnace
IPC: C09C1/50
Filed: 1970-07-29
Abstract: 1322214 Carbon black furnace PHILLIPS PETROLEUM CO 29 July 1970 [30 July 1969] 36725/70 Heading C1A A carbon black furnace comprises a refractory lining of pre-formed shaped blocks 27 for feed zone 3, and a cast unitary lining of refractory material 17 for carbon black forming zone 4 and 5. Removable closure 7 has a layer 29 of cast refractory.
Patent GB-1445905-A (GB)
Title: Dryer two-phase charge shai
IPC: D06F58/22
Filed: 1974-08-21
Abstract: 1445905 Dryers F A SCHUURINK 21 Aug 1974 [3 Sept 1973] 36762/74 Heading F4G A dryer is provided with a filter 23 mounted in a door 16, the filter 23 being readily accessible when the door 16 is open. The filter is connected between apertured plate 18 attached to the door 16 and a plate 25 of the door. A bolt (Fig. 2, not shown) draws the plate 18 towards the door 16 and tensions the filter 23. The dryer further comprises a fan 6 for blowing air heated by heaters 38 through the drum 1 and two condensers each having a tube 30 for the passage of a cooling fluid.
Patent GB-1490216-A (GB)
Title: Trucks and storage locations associated therewith
IPC: B66F9/075
Filed: 1974-08-21
Abstract: 1490216 Warehouses LANSING BAGNALL Ltd 13 Aug 1975 [21 Aug 1974] 36786/74 Heading A4T A truck 3 is constrained to move along by rows of horizontally spaced storage locations 2 in a set of racking 1, the truck 3 including an extensible mast 4 carrying a turret 5 which includes lifting forks which are extendable into and retractable from a storage location 2 in a direction transverse to the direction of travel of the truck 3, a plurality of horizontally spaced optically reflective markings 7 being provide along the racking 1, while the truck 3 is provided with an optical transmittep (9a or 9b), Fig. 3 (not shown), which projects a light beam 8 laterally of the truck in the direction of the markings 7, the markings being so positioned that when the beam 8 illuminates one of them, e.g. the marking 7a, then the forks are correctly positioned adjacent a particular vertical column of storage locations 2 associated with the marking 7a, e.g. the column containing the location 2a, the horizontal spacing between each marking 7 and a respective vertical column of storage locations 2 corresponding to the horizontal spacing between the optical transmitter and the lifting forks. The illumination of a marking 7 is visible to the truck operator.
Patent GB-924273-A (GB)
Title: Improvements in or relating to haymaking machines
IPC: A01C3/08
Filed: 1959-05-04
Abstract: The subject-matter of this Specification is included in Specification 924,271 but the claims differ.  Specification 924,272 also is referred to.
Patent GB-912376-A (GB)
Title: Improvements in or relating to electric circuits employing transistors
Inventor: PFYFFER HANS KARL
IPC: H03K3/2897
Filed: 1960-10-28
Abstract: 912,376. Transistor amplifying and switching circuits. GENERAL ELECTRIC CO. Ltd. Sept. 22, 1961 [Oct. 28, 1960], No. 37150/60. Class 40 (6). A circuit comprises two transistors each having its output coupled via a rectifying device to a common output point, the arrangement being such that for a given level of input signal, no output is produced but if the level changes by more than a predetermined amount in one sense or the other, one or other of the rectifying devices will conduct to supply an output signal to the common output point. A circuit for use as a pilot level indicator for repeater or terminal equipment in a communication system comprises a long-tailed pair of transistors 4, 17, the collectors of each being coupled via diodes 23, 24 to the input of a trigger circuit 21, 22. A D.C. input derived from the pilot signal is connected to terminals 1, 2 and potentiometers 3, 14 are adjusted so that with normal input levels both diodes are reverse biased. If the level of the pilot signal changes in a sense such that the bias on the base of transistor 4 becomes less negative, the collector potential will become more negative until diode 23 conducts, applying a signal to the base of transistor 21. When the level at this point exceeds a certain value, the trigger circuit switching over to operate an indicator or effect a control. Similarly if the pilot signal changes in the other direction diode 24 is rendered conducting to supply the switching signal to the trigger pair. Resistor 6 has a negative temperature coefficient to compensate for the effects of variable ambient temperature on transistor 4.
Patent GB-1190656-A (GB)
Title: Dimerisation of Unsaturated Compounds
Inventor: BADHAM JOHN WILKINSON
IPC: C25B3/29
Filed: 1967-08-14
Abstract: 1,190,656. Dimerization process. IMPERIAL CHEMICAL INDUSTRIES OF AUSTRALIA & NEW ZEALAND Ltd. 14 Aug., 1967 [22 Aug., 1966; 12 Sept., 1966], No. 37318/67. Heading C2C. Olefinic compounds selected from α,#-monoolefinic nitriles and esters of aliphatic α,#- mono-olefinic carboxylic acids are reductively dimerized in a medium comprising a major proportion of at least one polar aprotic solvent and capable of providing reactive hydrogen by interaction of a metal amalgam selected from alkali and alkaline earth metal amalgams with said medium, wherein the amalgam phase and the phase containing the monomer are maintained in agitation and wherein the alkali or alkaline earth metal transferred in the reactor from the amalgam to the organic phase is subsequently reacted with a weak acid, in which process the improvement is characterized in that the alkali and alkaline earth metal ions and/or salts present in the organic phase are rapidly transferred to and/or precipitated in a separate aqueous phase during or after the reaction and are then recovered. The reaction is preferably effected in the presence of an "onium additive" which is a salt capable of forming alkylated cations in the medium, e.g. organic ammonium, phosphonium and sulphonium salts, and the concentration of the alkali or alkaline earth metal in the organic phase resulting from the aqueous extraction process is suitably maintained between 1 x 10<SP>-3</SP> and 0À5 moles/litre. The polar aprotic solvent may be selected from acetonitrile, dimethyl formamide, dimethyl acetamide, dimethyl sulphoxide, sulpholane and adiponitrile, and the reaction medium may also comprise a co-solvent which is an inert, water-soluble, non-polar high boiling hydrocarbon. The amalgam employed is preferably a sodium amalgam and the weak acid used in the neutralization step is preferably carbon dioxide, in which case sodium bicarbonate is obtained as a by product. The process may be operated continuously, a suitable form of apparatus being described. In specific examples the hydrodimerization of acrylonitrile to adiponitrile is described, some propionitrile and dicyanopropyl ether also being formed.
Patent GB-1003300-A (GB)
Title: Drill bit for drilling earth formations
IPC: E21B10/18
Filed: 1963-09-26
Abstract: 1,003,300. Boring earth &c. E. B. WILLIAMS. Sept. 26, 1963, No. 37929/63. Heading E1F. A bit has rotary cutters 22, 23, 24 arranged about an axis 18 spaced from the axis 9 of bit rotation and the spindle 25 of the cutter 22 has a flushing liquid passage which directs liquid towards the axis of rotation. The passage is formed in the pin 41 which holds the cutter 22 on its spindle. The cutter 23 is held on its spindle 26 by a solid pin 37, and the cutter 24 is held on its spindle 27 by a spring clip 54. Flushing liquid is also discharged from the bit body above the cutters 23, 24 through channels 49, 50.
Patent GB-814630-A (GB)
Title: Improvements in or relating to a subscriber's line circuit in communication systems
IPC: H04M19/02
Filed: 1956-12-13
Abstract: 814,630. Automatic exchange systems.  COMPAGNIE INDUSTRIELLE DES TELEPHONES. Dec. 13, 1956 [Dec. 14, 1955], No. 38091/56. Classes 40 (4) and 40 (9). Ringing current is fed to a subscriber over an impedance in series with the line, said impedance being arranged to be high or low according as the subscriber's loop is open or closed. As shown, Fig. 1, the impedance consists of a winding 13 on a core which becomes saturated by the current flowing therethrough when the subset is off-hook. The transformer 1 in the subscriber's line circuit is provided with a pair of oppositely poled shunt-connected rectifiers 5, 6 which are substantially non-conducting at speech level, but are substantially conducting at the higher level of the ringing current, so that the series resistance to the latter is low. The small voltage developed across these rectifiers serves as ringing tone for the calling subscriber. The ringing current supplied by the source 14 consists of audio-frequency interrupted at 50 c.p.s. the whole being interrupted in the usual cadences. Application to the transformer winding 23 is controlled through an auto-self-excited magnetic amplifier by D.C. applied from a portion 28 of the subscriber's line circuit. Since the amplifier does not completely suppress the A.C. in the off condition a series circuit comprising back-biased oppositely poled rectifiers 24, 26 is included to provide a threshold voltage which the A.C. must overcome in order to be transmitted. In the subscriber's set the audio frequency is applied to a voltage doubler circuit 8, 10, 11 to provide 50 c.p.s. pulses for the bell 9. Switching off of the ringing current on the reply of the called subscriber may be effected by changing the control current supplied by the source 28, by means of a magnetic amplifier (not shown) which is responsive to the potential of the upper plate of condenser 4.
Patent GB-848184-A (GB)
Title: Improvements in or relating to electric circuit interrupters
IPC: H01H33/56
Filed: 1958-11-27
Abstract: 848,184. Oil-blast switches. WESTING- HOUSE ELECTRIC CORPORATION. Nov. 27, 1958 [Dec. 6, 1957], No. 38268/58. Class 38 (5). A circuit-breaker is of the single terminal bushing type with a grounded intermediate support for the bushing and has a number of serially related gaps in alignment. A -central insulated rod 69 carries a movable contact member 70 for each break, contact fingers 90 being pressed by springs 96 to contact the moving contact and by further springs 96a to engage on the lower end of each moving contact member 70 when the breaker is closed. An annular nozzle 77 is provided at each break and a blast of fluid is forced therethrough on operation by a piston 72 on the moving contact assembly. A permanent magnet sleeve 79 sets up a radial field across each gap to help extinguish the arc. The whole of the contact assembly is screwed by a bayonet connection at the top for ready release. The fluid maybe SF 6  or SeF 6  and the sleeve 78 and nozzle 77 may be P.T.F.E. Current transformers may be arranged on each side of the grounded support. Specification 847,968 is referred to.
Patent GB-1366544-A (GB)
Title: Mechanism for forming a yarn reserve
IPC: B65H54/34
Filed: 1971-08-16
Abstract: 1366544 Forming a yarn reserve BARMAG BARMER MASCHINENFABRIK AG 16 Aug 1971 [28 Aug 1970] 38323/71 Heading D1J A thread end 101, Fig. 8, is caught by a suction pistol 104 and pulled under a bar 99, along a path 105 and then up under a bracket 106. The thread 101, moving towards the winding zone of a lap creel 56, then travels along the bar 99 until it drops onto a guiding rod 69 from whence it contacts the edge 71 of a lever 68 pivoted at 70. The thread continues to move along the rod 69 and lever 68 until it engages a nose 72 of the lever 68. At the same time the thread travels along the bracket 106, up a vertical arm 107 and thence into the catcher groove 40 of a lap creel 56. The thread snags in the catcher groove 40 and commences to wind up onto the creel 56.  The resulting increased tension in the thread causes the lever 68 to commence a pivoting movement towards the creel 56, the inertia of the lever 68 causing a delay in the travel of the yarn past the nose 72 sufficient for a yarn reserve to be wound on the creel 56. As soon as the lever 68 has rocked sufficiently for the thread to pass the nose 72 the thread moves to the end of guide rod 69 from which it is then removed by being automatic-' ally threaded into a guide reciprocated by a threaded roller. To ensure that the thread 101 moves along the rod 69 there is a supply guide for the thread arranged centrally above the winding zone of the creel 56. The axis 70 of the tilting lever 68 is inclined out of the vertical in a direction away from the lap creel 56. The centre of gravity of the lever 68 is such that in its undeflected setting it engages against a fixed stop 76 by a weightinduced torque acting against the direction in which it will be tilted by filament tension. A magnet 37 in the lever 68 co-operates with a fixed magnetisable body to exert a holding moment on the lever 68.
Patent GB-885797-A (GB)
Title: Improvements in or relating to fluid-control valves to be mounted in container bottoms
IPC: F16K27/07
Filed: 1959-11-13
Abstract: 885,797. Pipe joints. GERDTS, W. F. and GERDTS, H. R., [trading as GERDTS KOMMGES GUSTAV F.] Nov. 13, 1959 [Nov. 14, 1958] No. 38498/59. Class 99(1). [Also in Group XXIX] A bottom valve for a container 4 having a flange 3 and an outlet connection element 9 has the valve components e.g. closure 1; seat 2 and seat securing studs dismantable in a downward direction, and arranged so that they do not project beyond the surface of separation 11, constructed as an intended fracture plane, between the flange 3 and element 9. A blow on member 9 fractures securing bolts so that the member leaves the flange and does not damage the valve 1, 2 which may then be closed. The closure 1 may be actuated by a screw 7 or by a pinion and a rack entering a socket in element 9, the rack abutting a depending valve stem on the surface 11.
Patent GB-849914-A (GB)
Title: Production of higher alcohols
IPC: C08F10/00
Filed: 1956-12-19
Abstract: Monohydric primary alcohols of at least 6 carbon atoms are prepared by the following series of steps: step (a) admixing in a circumambient inert or ethylene medium substantially free of oxygen and moisture (1) a hydrocarbon-metal compound of formula: (R-CH2-CH2)m-Me-Xn (A) where R is hydrogen or C1-6 alkyl, Me is aluminium, antimony, bismuth, cadmium, copper, gallium, germanium, indium, lead, mercury, thallium, tin or zinc, X is hydrogen, C1-6 alkyl or chlorine, and m and n are numerical values whose sum totals the valency of Me and of which n may be zero and m is a definite numerical value, and (2) an anhydrous chloride of one of the above metals, (3) then passing gaseous ethylene through the mixture to saturate it with ethylene (thereby converting any hydride groups in the hydrocarbon-metal compound to ethyl), and (4) thereafter adding with stirring an anhydrous chloride of titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, uranium, manganese, rhenium, iron, ruthenium, osmium or nickel; step (b), passing a stream of ethylene gas into intimate contact with the resulting mixture to cause the gradual insertion by chain growth of -CH2-CH2- radicals formed from the ethylene molecules into the hydrocarbon chains of the hydrocarbon-metal chlorides added or formed in step (a); step (c), measuring the mean number of carbon atoms in the built-up hydrocarbon chains of the hydrocarbon-metal chlorides as the ethylene gas is being passed into the mixture (e.g. by measuring the ethylene up-take); step (d), discontinuing the passage of ethylene gas into the mixture when the built-up hydrocarbon chains of the hydrocarbon-metal chloride has reached a predetermined mean number; step (e), then passing oxygen through the mixture to oxidise the hydrocarbon-metal chlorides with or without first isolating these; step (f), thereafter adding water and a hydrolysing acid to the resulting mixture to produce higher alcohols of the same number of carbon atoms as contained in the built-up hydrocarbon chains; and step (g), recovering the higher alcohols thus produced.  When appropriate compounds within the scope of formula (A) are mixed with the metal chloride in step (a) (2), there results a mixture of hydrocarbon-metal chlorides represented by the formula: (R-CH2-CH2)a-Me-Clb (B) where a and b are numerical values whose sum is the valency of Me and of which neither is zero.  The molar ratio of the compounds of steps (a) (1) and (a) (2) combined to that of (a) (4) is preferably from 50:1 to 400:1 while that of the (a) (1) to (a) (2) compounds is preferably from 1,5:1 to 5,0:1.  The inert medium may be liquid or gas.  The ratio of inert liquid to starting hydrocarbon-metal compound may be from 10:1 to 100:1.  The reaction is exothermic and temperatures of 5 DEG -50 DEG , preferably 20 DEG -30 DEG  C., are mentioned.
Patent GB-802716-A (GB)
Title: New tropeine derivatives
Inventor: ZEILE KARL
Filed: 1956-12-19
Abstract: The invention comprises quaternary tropeines of the general formula <FORM:0802716/IV (b)/1> (wherein R is a straight-chain or branched alkyl group containing from 6-11 carbon atoms or a cyclohexyl group, R1 is an acid residue containing an aromatic group and X and Y are both hydrogen atoms or together with the adjacent carbon atoms form an oxygen bridge), and a process for their manufacture by quaternizing the corresponding tertiary tropeine with an alkyl or cyclohexyl ester of a halogen-substituted acetic acid.  The reaction is carried out at room temperature, for example 20 DEG  C., or, if desirable, by heating to 60 DEG  C., and preferably in the presence of an inert organic solvent, for example acetonitrile, chloroform, acetone or methanol.  Examples describe the preparation of diphenyl-hydroxyacetyl-N-heptoxycarbonylmethyl-tropinium bromide and chloride, N-hexoxycarbonylmethyl-scopolammonium bromide, N-octoxycarbonyl-methyl-tropinium bromide benzilic acid ester, diphenyl-hydroxyacetyl-N-octoxycarbonyl - methyl - tropinium chloride, N - cyclohexoxy - carbonylmethyl - atropinium bromide, N - nonoxycarbonylmethyl - atropinium bromide and N-heptoxycarbonylmethylscopolammonium bromide.
Patent GB-927134-A (GB)
Title: Improvements in or relating to electric fans
Inventor: PAGE BERTIE HAROLD
IPC: F04D25/10
Filed: 1960-11-15
Abstract: 927,134. Axial-flow fans. GENERAL ELECTRIC CO. Ltd. Nov. 13, 1961 [Nov. 15, 1960; May 25, 1961], Nos. 39197/60 and 18930/61. Class 110 (1). [Also in Group XXIV] In an electric fan including an electric motor, impeller blades arranged to produce a draught of air, and vanes which are set in the path of the draught of air to deflect it and are capable of being oscillated by the electric motor, the oscillating means includes a pivoted arm adapted to be oscillated by the electric motor and to oscillate the vanes through a speed-reducing mechanism including an intermittent unidirectional driving arrangement such as a pawl-and-ratchet arrangement. In the fan shown in Figs. 1-3, a cam 19 on the motor shaft 3 operates on a plastic cap 18 on the end of an arm 17 to oscillate the latter about a pivot 16. A spring 20 maintains contact between the cap 18 and cam 19. A pecker 21, pivotally attached to arm 17 and held against the resilient rim of a wheel 8 by a spring 22, digs into the wheel on its forward strokes and thereby rotates it. A bar 7, which is reciprocated by an arm 10 pivotally connected at 11 to the wheel 8 and is connected at 6 to plastic deflector vanes 5, causes the latter to oscillate about their pivots 33 positioned in a housing 2 of moulded plastic. The frequency of oscillation of the vanes may be 7 times per minute over an arc of about 90 degrees. A cam 25 can be rotated by a knob 27 to disengage the cap 18 from the cam 19 and thereby stop the oscillation. A wire stand 30, provided with rubber or plastic feet 32, may be set in a number of positions through an arc of about 90 degrees. A carrying handle 29 is provided. In an alternative embodiment, Fig. 4, a wheel 40 on the motor shaft contacts a neoprene tyre 45 arranged around an eccentric roller 44 mounted at the end of an arm 42, thereby rotating the roller to produce oscillation of the arm. Mounted at the other end of the arm 42 is a flexible phosphor-bronze pecker 50 which flexes in the plane of a wheel 47 and engages a tyre 48, of neoprene or other resilient material, arranged around the wheel 47. The wheel 47 oscillates the deflector vanes through linkage as already described. A cam 56 operated by a knob 57 disengages the tyre 45 and wheel 40 against the action of a coil spring 46. A stand 60 may be secured in either of two positions, substantially at right angles, from the underneath by a hand-operated knob (not shown).