baber/WOPTO huggingface dataset:
Patent GB-1601094-A (GB)
Title: Simultaneous radioassay of folate and vitamin b12
IPC: G01N33/82
Filed: 1978-01-26
Abstract: A sample which contains free folic acid and/or tetrahydrofolic acid and also free vitamin B12 is brought into contact with     (1) a binding agent for folic acid and/or tetrahydrofolic acid,   (2) a binding agent for vitamin B12, (3) a substance used for labelling, which is selected from folic acid, 5-methyltetrahydrofolic acid and analogues of folic acid and is labelled with a first radioactive isotope, and (4) a vitamin B12 used for labelling, which is labelled with another radioactive isotope. The bound fractions of folic acid and/or tetrahydrofolic acid and also vitamin B12 are separated from the unbound fractions. The radioactivity of at least one of the bound fractions and unbound fractions is measured.
Patent GB-641691-A (GB)
Title: Improvements in or relating to methods of and apparatus for moulding rubber and the like
IPC: B29C35/02
Filed: 1948-02-05
Abstract: 641,691. Roller-and-belt rubber sheeting machines. TRICO PRODUCTS CORPORATION. Feb. 5, 1948, No. 3439. Convention date, Feb. 5, 1947. [Class 87 (ii)] Rubber strip &c. is continuously moulded between a vulcanizing drum 3 and an endless belt 4 carried by the vulcanizing drum 3 and a co-operating drum 2 by feeding rubber dough between a pair of preshaping rollers 12 located near the point at which the belt runs on to the drum, delivering the preshaped strip on to the drum beneath the belt, and then removing the vulcanized strip at the point where the belt leaves the vulcanizing drum. The co-operating, drum 2 may also be used for vulcanizing a second rubber strip. The belt 4, e.g. of steel, rests on the side margins 9, Fig. 2, of the drums and forms with the groove 5 a closed moulding cavity for the strip. The drums have heating elements 11. Near the point of feed of the strips are pressure rolls 8 adjustably mounted on suspension rods 14. The vulcanized strip is taken off on rolls 10.
Patent GB-362755-A (GB)
Title: Improvements in or relating to electrodes for electrolytic processes
IPC: C25B11/02
Filed: 1931-02-03
Abstract: 362,755. Electrolysis. CONRADTY, E. and CONRADTY, O., (trading as CONRADTY, C.), 9, Spittlertorgraben, Nuremberg, Germany. Feb. 3, 1931, No. 3490. Convention date, July 23, 1930. [Class 41.] Electrodes.-In a cell having vertically arranged electrodes, the anodes a are of trapezoidal section (as shown), or alternatively of rhomboidal section, and are arranged with their sides overlapping so as to present an uninterrupted anode surface to the cathode c. In an alkali-chlorine cell this prevents destruction of the cathode diaphragm b, which otherwise occurs at points opposite to gaps in the anode surface.
Patent GB-452632-A (GB)
Title: Process for washing gases
IPC: B01D53/18
Filed: 1936-02-05
Abstract: 452,632. Gas - washing processes. GES. FUR LINDE'S EISMASCHINEN AKT.- GES., H÷llriegelskreuth, near Munich, Germany. Feb. 5, 1936, No. 3547. Convention date, Feb. 6, 1935. [Class 55 (ii)] In a gas-washing process for the removal of constituents soluble in water, and carried out in a washing column narrowed or tapered upwards, the water, introduced partly at the top and partly at one or more lower points, is regulated in quantity at the different points in order to maintain the gas velocity near to the speed at which the water is carried along by the gas against the force of gravity. The main water supply 4 is at the top, and the secondary water supply 5 is introduced at the part where the column is narrowed; the gas enters at 6 and leaves at 7.
Patent GB-137932-A (GB)
Title: Improvements in or connected with electrical couplings
IPC: H01T13/04
Filed: 1919-02-14
Abstract: 137,932. Lea, W. C. Feb. 14, 1919. Cable and wire terminals. - In a terminal tip of the kind described in Specification 1600/15, comprising a socket portion a adapted to engage the insulation b of a conductor d, a flattened portion c gripping the end of the conductor, and a sleeve f adapted to engage a terminal pin or binding-post g, one or more gripping-devices adapted to engage terminal pins &c. of various sizes are provided within the sleeve. In the form shown, the gripping-devices comprise spring tongues i stamped out of a bush h secured within the sleeve f by spinning over the edges of the sleeve at j. The spring tongues may be stamped out of the sleeve itself, or they may be replaced by inwardly-extending bow-shaped members or by a tapered helical spring. The upper end of the sleeve may be closed to ensure that it is put on the terminal pin in the right direction.
Patent GB-272135-A (GB)
Title: Improvements in and connected with dust bins, sanitary bins, and the like
IPC: B65F1/08
Filed: 1927-02-09
Abstract: 272,135. Crowe, G. E. W. Feb. 9, 1927. Lids; handles.-A removable refuse can p rests inside a bottomless casing a on supports constituted by crossed metal strips d forming feet for the casing, and the casing lid n is opened by means of a pedal lever h and link k. A strip o secured to the casing is bent at o<1> for the attachment of the lid, and its bifurcated lower end guides the lever h. The can p has an internal handle q, which is prevented from falling appreciably below the horizontal by stops s.
Patent GB-980985-A (GB)
Title: Central heating system
IPC: F24D3/10
Filed: 1963-01-30
Abstract: 980,985. Hot-water boilers. R. GRAF. Jan. 30, 1963 [Jan. 30, 1962], No. 3739/63. Heading F4A. In a central heating system employing water heated by a gas-fired heater, an expansion chamber of the system has mounted thereon the gas-fired heater together with at least a circulating pump, and gas and water control instruments. In the form shown, the gas heater 2 is mounted on the upper part of the expansion chamber 1. A circulating water pump 3, a system shut-off cock 4, a regulator 5, a thermometer 6, and a manometer 7 with the necessary connections all arranged below the heater 2 on said chamber. Additional water-heating coils may be inserted in the expansion chamber for the heating of additional water flowing through them.
Patent GB-160345-A (GB)
Title: Improvements in bushings for jaw joints such as are employed in linkwork
IPC: F16C11/04
Filed: 1920-02-07
Abstract: 160,345. Sturch, H. A. Feb. 7, 1920. Bushes; materials, special.-Joints for linkwork are provided with bushes F, K, composed of non- metallic material such as raw hide, dressed leather, bonded asbestos, compressed felt, fibre, and materials sold under the Trade Marks " Ferodo " or " Driped." Holes for lubricant may be provided in the bushings and in the pin C. The materials used may also be impregnated with lubricant such as wax, graphite, grease &c., or a ring of compressed graphite may be inserted between the members of the joint and the bushes.
Patent GB-1529912-A (GB)
Title: Method for manufacturing sealing rings
IPC: F16J15/56
Filed: 1976-01-30
Abstract: 1529912 Sealing rings C X G LATTY 30 Jan 1976 [4 Feb 1975 (2)] 03822/76 Heading F2B [Also in Division B5] A method for making sealing rings comprises impregnating threads 3 by passage through a bath of elastomeric or plastics material 2, forming a band with the impregnated threads, shaping the band into a ring and moulding it under pressure. The threads 3 may be of cotton, asbestos, graphite, polyamide, p.t.f.e., metal or a composite. The impregnation material may be acrylic nitrile copolymer, natural rubber, polychloroprene, polybutadiene, fluorined elastomer or p.t.f.e., possibly with the addition of mica, graphite or zinc oxide; preferred percentages are given, some to provide a specified (or zero) swelling in hydraulic oil. The ring may be laminated from several bands, either flat or with a V-section. Several examples are given, including thread densities, materials, moulding times, pressures and temperatures, seal sizes and weights.
Patent GB-796153-A (GB)
Title: Process for producing carbon bisulphide
Filed: 1955-02-09
Abstract: Carbon disulphide and hydrogen sulphide are produced by the reaction of sulphur vapour and hydrocarbon gas in the absence of a catalyst under a pressure of at least 3 atmospheres, while passing through a heated chamber maintained at 450-1100 DEG  C. at a space velocity of 80-1000 hr-1.  Methane or natural gas containing higher hydrocarbons and melted sulphur are heated separately and mixed just before entry into the chamber, which may be unobstructed stainless steel tubes arranged in a furnace to provide a tortuous path, and the sulphur is immediately vaporized. The amount of sulphur should be in excess of the stoichiometric amount of 4 atoms of sulphur per mol. methane. The temperature should be 450-700 DEG  C., pressure 3-15 atmos. space velocity 500-150 hr.-1, contact time of reactants 6 secs.-1 min. 12 secs., and conversion of the carbon in the hydrocarbon may be 40-100 per cent.  In one example the stainless-steel tube is filled with steel turnings.  Specifications 633,239 and 644,030 are referred to.
Patent GB-532580-A (GB)
Title: Improvements in and relating to "panic bolts"
IPC: E05B65/10
Filed: 1939-09-07
Abstract: 532,580. Emergency exit fastenings. SAFELOCKS, Ltd., BENABO, J., and EDSON, A. D. Sept. 7, 1939, No. 3966/40. Divided out of 532,554. [Class 44] In a panic-bolt fastening releasable by an outside handle, the handle contains a cylinder lock operating a bolt which engages a fixed abutment to lock the handle. As shown, a pair of bolts 16, 17 are connected by a rocker 20 so as to be simultaneously shot by a spring 24 and released by crushbar lever 14, 15. Preferably, the arrangement is combined with a sliding catch 30 engaging a notch 26 in bolt 16 to hold the bolts in retracted position as in Specification 532,554, and with external releasing means for the catch comprising an arm 41 pivoted at 67 and with external finger-piece 40 as in Specification 532,579. The external handle 45 is mounted in a plate 39 secured to the door by screws 43 the heads of which are covered by the casing 12 of the internal mechanism. Plate 39 carries a boss 46 with a radial slot 47 in which the bolt 48 of a cylinder-lock mounted in the handle can be engaged to lock the handle. Boss 46 also has an arcuate recess 49 in which works a projection 52 carried by a sleeve 53 secured to the handle, the movement of which is thus limited. The inner end of sleeve 53 is recessed to receive a bush 59 with a finger 61 engaging in an arcuate recess 55 in the sleeve. This arrangement gives lost motion so that the handle may be locked and the door afterwards closed by slamming. Bush 59 has a square hole embracing a shaft 65 the inner end of which engages a square recess 36 in a boss on the rocker 20, whereby rotation of the handle retracts both bolts 16, 17.
Patent GB-572076-A (GB)
Title: Improvements in and relating to liquid seals for shafts
IPC: H02K5/124
Filed: 1944-03-03
Abstract: 572,076. Liquid seals. BRITISH THOMSONHOUSTON CO., Ltd. March 3, 1944, No. 3972. Convention date, March 8, 1943. [Class 122 (v)] In a hydrogen cooled dynamo escape of gas between casing end cover 14 and shaft 13 is prevented by providing an internal bearing 15 with two oil seals between it and the shaft, the main seal being at 43, 47 and the second at 50. Both seals are supplied at a pressure greater than that of the gas in the casing, and the pressure of the second seal is automatically increased on failure of the first seal. Oil under pressure is supplied to the first seal 43,47 by pipe 46 and passages 44, 45 to the chamber 43 and annular passage 47 formed by recessed inner face of a sealing ring 42 and bearing 15 to which ring 42 is tightly secured. Leakage is drained by groove 48 and passages 62 to sump 61. The second seal 50'is supplied by tube 52 and passage 51 with oil at a pressure controlled by valve operating rod 54 attached to bellows 55 subjected on one side to casing gas pressure and on the other side to main,seal oil pressure; so that in the event of latter failing an increased pressure is provided at the second seal 50. Taps 59 enable the oil pressure to be controlled manually. Leakage towards the bearing is drained by annular recesses 60, 37 and passages 63, 64 to sump 36.
Patent GB-1414108-A (GB)
Title: Sphere launcher and meter prover apparatus and method
IPC: G01F25/00
Filed: 1974-01-29
Abstract: 1414108 Measuring fluid-flow M H GROVE and J M E GROVE [trading as M & J DEVELOPMENT CO] 29 Jan 1974 [9 Feb 1973] 03995/74 Heading G1R In a meter prover apparatus, a sphere 1 arriving at the outlet end 10b of a meter prover pipe 10 is prevented from entering an interchange 11 by a guard 51 when a plunger assembly 32 is in a sphere launching position, Fig.5, and when assembly 32 is in the sphere 1 receiving position, Fig.6, the sphere 1 falls by gravity into a sphere carrier 56 and thereafter the assembly 32 is returned by an operating means 41 to the sphere launching position, Fig.5, in which the sphere 1 falls by gravity into the inlet end 10a of the pipe 10. In the assembly 32, Fig.6, a circular member 59, provided with a resilient material rim 61, enters a sleeve 38 and prevents the liquid backflow. Sealing cups 44 on the assembly 32 engage the sleeve 38, when the assembly is in the sphere launching position, Fig.5, and prevent liquid passing from the inlet 10a to outlet 10b. The pressure in a space 76 between the cups 44 and sleeve 38 is measured by a tube 67 and the pressure in the Tee 27 is measured by a pipe 68 and the two pressures operate a differential pressure device 69 which switches on one or other of lamps 73,74 if there is a liquid leak past cups 44. The sphere 1, on passage through pipe 10, actuates detectors 17, 18 and thus the accuracy of a flow-meter 14 is checked. Adjustment means are provided for different sphere sizes in carrier 56, Figs. 9-10, (not shown).
Patent GB-544386-A (GB)
Title: Improvements in the manufacture of solid drawn iron and steel tubes
IPC: B21C9/00
Filed: 1941-03-26
Abstract: 544,386. Making tubes. WALDRON, F. B. March 26, 1941, No. 4045. [Classes 83 (i), 83 (ii) and 83 (iv)] Casting-machines ; drawing ; forging.-Tubes are made by drawing ferrous metal from a reservoir 12 of molten metal, which may be supplied continuously as described in Specification 543,245, [Group II], through one or more dies 13, 16 and over a mandrel 14, either or both being cooled by circulating water or otherwise. The tube may be cooled at 17 and pulled by travelling electromagnets 21. Any number of dies 16 may be used or these may be replaced by presses. The tube may then be re-heated as by a high-frequency or other furnace 23, drawn at 27, cooled at 28, pulled at 29, and cut off by a travelling saw 35, shears, or acetylene burner. The tube may also be heat treated or flattened into a bar before cutting or heat treated or drawn after. The hot tube may be enclosed in a box 32 filled with a reducing or neutral gas, liquid, or granular material. The thickness of opposite sides of the tube may be regulated by adjusting the heating means 23 to heat one side more than the other or the cooling means 17 when followed by a heater and drawing die, to cool one side more than the other. The cooling fluid is supplied to the central compartment 17 only the compartments 18 serving to catch leakage around the travelling tube.
Patent GB-812496-A (GB)
Title: Equipment for forging crankshafts
IPC: B21K1/08
Filed: 1957-02-06
Abstract: 812,496. Forging crankshafts. SCHLOEMANN A.G. Feb. 6, 1957 [Feb. 24, 1956], No. 4051/57. Class 83 (4). In apparatus for forging the throws of crankshafts, comprising holding dies 18, 19 for holding the crank-shaft on each side of the throw to be forged and a movable cross-head 4 carrying a punch 5 for forging the throw, the punch is mounted for transverse movement on the crosshead 4 at right angles to the axis of the crankshaft. The punch is mounted in a holder 12 slidable transversely to a punch position 5b by a rack and pinion 11, 10 driven through shaft 9 and slipping clutch 8 by an electric motor 7. The upper holding dies 18 are mounted on a cross-beam 14 connected through dovetail members 16 with moving cylinders 15 engaging over stationary pistons 17 secured to the crosshead 4. The latter is lowered by a ram 3 and raised by rods 4a connected to pull back pistons. Specification 811,541 is referred to.
Patent GB-385465-A (GB)
Title: Improvements in or relating to arc rectifiers
IPC: H01J13/20
Filed: 1932-02-11
Abstract: 385,465. Rectifying alternating current. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Feb. 11, 1932, No. 4083. Convention date, May 31, 1931. [Class 38 (ii).] In an arrangement for rectifying alternating current comprising a metallic vapour rectifier, a series of grids are provided between the cathode and anode, the grids being of such number, dimensions, and arrangement that the rectifier is rendered inoperative by the deionizing effect thus introduced except when a voltage is impressed upon one or some of the grids. The controlled grids are arranged alternately with uncontrolled grids, the latter being connected to such metal parts of the rectifier as the anode protective tubes.
Patent GB-952925-A (GB)
Title: Production of moulding foils for foil coated confectionery articles
IPC: A23G3/02
Filed: 1961-02-03
Abstract: 952,925. Moulding chocolate. MALBA G.m.b.H., and CHOCAL G.m.b.H. Feb. 3, 1961 [Feb. 4, 1960; June 18, 1960], No. 4109/61. Heading B5A. [Also in Divisions B6 and B8] In a method for producing foil-coated confectionery articles by casting, two metal foil shells are first made by pressing between die members, molten confectionery is introduced into one shell and both are placed together, and shaking or spinning distributes material round the inside of the shells. The adjacent margin of the two shells may be joined together after the confectionery has cooled. The metal foil is guided into a die set, Fig. 1, and a plate a<SP>1</SP> lowered, members a, d cupping the foil and a cutter die b co-operating with a support c to trim it. The foil then has the profile indicated to the right of Fig. 1. The shells are placed in pairs in a support a dispenser having ' metered out portions of molten chocolate filling into one member of each pair. The supports are spun and/or jogged so that the filling distributers itself evenly over the interior of the combined shells. When the filling is sufficiently hard the wrapped articles are removed and placed in a cooling tunnel. The flange of each shell may have been doubled over prior to filling &c., the initial shaping tools turning up the flange and a further similar set folding it back on itself, Figs. 5, 6, not shown. Alternatively after cooling the articles are placed in die sets which fold over and join the peripheral edges of the shells. In one embodiment (Figs. 4, 4a) a die o is provided with a rubber ring p and a hoop q. On descent of a plate a<SP>1</SP> the edges of the foils are turned upwards by engagement of these edges with the ring p. When member l, m reach their lowest position a ring n compresses the ring p forcing it inwardly to complete the folding over of the edge. In a further embodiment the folding over is carried out in two stages (Figs. 2, 3, not shown).
Patent GB-1146245-A (GB)
Title: Process for thinning aqueous inorganic dispersions of solids
IPC: C04B33/13
Filed: 1967-01-27
Abstract: 1,146,245. Thinning of dispersions. HENKEL & CIE G.m.b.H. 27 Jan., 1967 [29 Jan., 1966], No. 4114/67. Heading C1A. Aqueous inorganic dispersions are thinned by adding a mixture of an alkali metal silicate and a water-soluble salt of an aminopolyphosphonic acid of formula in an amount of 0À01 to 0À8% by weight of the dispersion, wherein R 1  and R 2  represent the residues and R 1  and R 2  may be the same or different, R 3  is the same as R 1  or R 2  or a hydrogen atom, an alkyl radical of 1 to 4 carbon atoms or a hydroxy-alkyl radical of 1 to 4 carbon atoms, and R 4  and R 5  represent hydrogen atoms or an alkyl radical of 1 to 4 carbon atoms, the proportion by weight of alkali metal silicate to aminophosphonic acid salt amounting from 20:1 to 2:1. The preferred mixture comprises an alkali metal silicate and a salt of an aminotri-(methylenephosphonic). In the examples, the following aminophosphonic components are added with the alkali metal silicates, in some cases as a mixed crystallizate, to dispersions of fire clay, china clay and chalk:-(1) the penta-sodium salt of amino tri-(methylenephosphonic acid), (2) the sodium salt of ethylenediamine tetra- (methylenephosphonic acid), (3) the sodium salt of monoethanol aminodi-(methylenephosphonic acid), (4) the sodium salt of diethylene triaminopenta-(methylenephosphonic acid), (5) the sodium salt of aminotri-(isopropylenephosphonic acid) and (6) the sodium salt of ethylene diaminotetra-(ethylidenephosphonic acid).
Patent GB-909438-A (GB)
Title: Equipment performance recorder
IPC: G07C3/12
Filed: 1961-02-03
Abstract: 909,438. Recording-apparatus. DU PONT DE NEMOURS & CO., E. I. Feb. 3, 1961 [Feb. 25, 1960], No. 4134/6 Class 106 (4). Apparatus for monitoring a machine 10 and recording the duration and cause of idle time comprises relay contacts K7-IB which close when the machine 10 shuts down to cause emission of electric pulses from a transmitter 11 to a uniselector switch S10 for counting units of time and operating a uniselector switch S20 after receiving each ten pulses, a manuallyoperable telephone-type dial S50 for encoding information and transmitting electrical pulses to a uriselector switch S40, and a control uniselector switch S30 responsive to the switches S40, S20 and S10 in sequence to cause punch mechanism 15 to record the duration of idle time and any information manually introduced. A signal in the form of a lamp 20 may be incorporated to indicate when the machine is idle and also an error switch 21, permitting manual overriding of the recording cycle in order to correct any information mis-dialled without affecting the counters.
Patent GB-1537561-A (GB)
Title: Water soluble polyamide acid precursors of polyimides
IPC: C08L79/00
Filed: 1976-02-03
Abstract: 1537561 Aqueous polyimide precursors E I DU PONT DE NEMOURS & CO 3 Feb 1976 [4 Feb 1975] 04184/76 Heading C3R High solids low viscosity stable aqueous solutions of t-amine salts of polyamide acids are obtained by including in the solution (A) 5 to 25 wt. per cent of a water-miscible viscosity reducing agent having a total solubility parameter of 10 to 21À6 of which dispersion, polar and H-bonding components contribute respectively 7À0 to 10À0; 2À0 to 11À0; and 7À0 to 14À0, and (B) 5 to 35 wt. per cent of a coalescing agent. (A) may be furfuryl alcohol; 1-butanol; 2-propanol; glycol methyl ether; triethylene glycol or formic acid and (B) N-methyl pyrrolidone; dimethyl formamide, acetamide or sulphoxide; cresylic acid; sulpholane or formamide. Reference is made to Specifications 1,121,325 and 1,207,577. Polymer blends.-The solutions are useful, inter alia, for blending with aqueous perfluoroolefin polymer dispersions to form release coatings with a fine-particle dispersion of perfluoroolefin polymer in the polyimide.
Patent GB-746622-A (GB)
Title: Pulse generator circuit with frequency stabilisation
IPC: H03K3/08
Filed: 1954-02-12
Abstract: 746,622. Pulse generating circuits. STANDARD TELEPHONES & CABLES, Ltd. Feb. 12, 1954 [Feb. 19, 1953], No. 4194/54. Class 40 (6). The pulse repetition frequency of a multivibrator is stabilized by incorporating in its circuit a resonant circuit which is tuned to the pulse repetition frequency and is connected between their anodes via impedances which ensure that the circuit is loosely coupled to the valves. The Figure shows a multivibrator comprising cross-coupled triode valves VA, VA<SP>1</SP>, the anode circuits of which are loosely coupled via resistors R3, R4, which are of unequal value, to a parallel tuned circuit LC2. The circuit LC2 is tuned to the pulse repetition frequency of the multivibrator, the output from which may be taken from the cathode circuit of valve VA<SP>1</SP>. The circuit may be synchronized by negative pulses applied to the grid of valve VA the voltage swing of which is limited by the rectifier networks R8, RE1 and R9, R2 so that it cannot exceed the fixed cathode bias of the valve or go below the cut-off value.