baber/WOPTO huggingface dataset:
Patent GB-1318118-A (GB)
Title: Process and apparatus for the production of a pole for example for  scaffolding
IPC: B23K9/028
Filed: 1970-08-10
Abstract: 1318118 Making poles; welding by fusion MERO AG 10 Aug 1970 [8 Aug 1969] 38493/70 Headings B3A and B3R [Also in Division E1] A process for making poles consisting of a hollow bar 1 and end pieces 2, 3, comprises clamping each of the end pieces in a rotatable holder 15, 16, sliding the hollow bar into or over the end pieces, adjusting the end pieces to the overall length of the finished pole, centering the bar 1 with respect to the end pieces, connecting together the bar and end pieces while stationary and rotating and welding the bar to the end pieces. The rotatable holders 15, 16, and the welding apparatus 18, 19, which is of the electric gas-shielded type with automatic welding wire feed, are slidably mounted on tubes 11 and secured thereto by screws 14. The tube 1 is centred by stops 30, 31, fixed to the tubes 11, the stops being moved electromagnetically or by fluid pressure means. After centering, the parts 1, 2, 3, are fastened together whilst stationary by a preliminary welding step before the rotary welding is effected. The end pieces 2, 3 may be provided with bolts 5, 4 respectively, which are retained by nuts (6), (7), Fig. 1 (not shown). The poles may be used in irrigation installations or sprays
Patent GB-1428750-A (GB)
Title: Calculator for use in determining the notes of musical scales  and chords
IPC: G09B15/00
Filed: 1973-08-15
Abstract: 1428750 Calculator R L BRITTON 7 Aug 1974 [15 Aug 1973] 38649/73 Heading G5X A device for calculating the notes of musical scales and chords comprises a base member 10 marked with columns of notes 17, and a slide 14 mounted in guides 12 to slide on the base 10, having rows of holes through which are visible the notes relevant to any particular chord or scale as defined by the table 19. The slide 14 has an arrow 20 which is aligned with a letter on a scale 15 on the guide 12 to define the key or note on which the chords are based. The device may be of a plastics or paper material. Preferably there is a cover (22, Fig. 2, not shown) hinged to the base 10 which covers the face of the device.
Patent GB-1473940-A (GB)
Title: Process and catalyst for preparation of lactones
IPC: B01J31/00
Filed: 1974-09-04
Abstract: 1473940 Catalyst composition EASTMAN KODAK CO 4 Sept 1974 [4 Sept 1973 23 July 1974] 38654/74 Heading B1E [Also in Division C2] A catalyst for producing 2, 2-disubstituted propiolactones from isoanhydrides and formaldehydes consists of the metal oxide-silica gel complex formed by heating the calcined residue of a mixture of silica gel and a water soluble salt of tantalum, titanium, niobium or zirconium to a temperature of 650-1000C in the presence of water vapour. Suitably, the catalyst is formed by mixing a solution of the metal salt with the silica gel, evaporating away the water, calcining at 400-600C and then heating in water vapour.
Patent GB-1089093-A (GB)
Title: Improvements in or relating to the production of derivatives from micro-organisms
Inventor: LAINE BERNARD MAURICE
IPC: C10G73/02
Filed: 1963-10-03
Abstract: Feedstocks such as heavy naphtha kerosine, gas oil and lubricating oil are used as nutrient for a yeast, mould or bacteria in the presence of yeast extract and oxygen. Straight-chain hydrocarbons, e.g. waxes, are selectively consumed and the pour point of the stock is thereby improved.ALSO:A hydrocarbon-consuming micro-organism is cultivated in the presence of a feedstock comprising, or consisting of, a hydrocarbon on which the micro-organism is capable of growth, from the product of the cultivation there is separated a cream or paste comprising the micro-organism, water and optionally small amounts of residual feedstock, thereafter the cream or paste is subjected, either directly or after reducing the proportion of residual feedstock if present, to treatment to rupture at least some of the cell walls and thereby liberate nitrogenous material, the proportion of water is reduced in the product from the rupture of the cell walls or a fraction derived therefrom and comprising nitrogenous material, and the fraction containing a reduced proportion of water is solvent extracted, an extract containing at least part of the lipids of the micro-organism together with hydrocarbon contaminants being separated from a raffinate fraction containing nitrogenous material (proteins, polypeptides and amino acids).  Specified species and strains of yeasts, moulds and bacteria are grown on a feedstock of petroleum origin rich in straight chain hydrocarbons having a mean molecular weight corresponding to at least 10 carbon atoms per molecule, in the presence of a nutrient medium containing extract of yeast and oxygen.  The cream or paste is treated with a surface active agent until the hydrocarbon content of the micro-organisms is less than 7% by weight; suitable agents are stearyl-trimethyl ammonium chloride (cationic), either condensates of oleic acid and ethylene oxide or the nonylphenyl ether of a polyoxyethylene polymer (non-ionic), or sodium alkyl sulphates (anionic).  The cell rupturing is performed by enzymatic autolysis (under mild conditions so that only some of the cell walls are ruptured), by plasmolysis due to induced changes in osmotic pressure, or by hydrolysis with acid or alkali.  The proportion of water in the product is reduced by means of drum-drying, by azeotropic distillation or by washing with ethanol or iso-propanol, and the fraction containing a reduced proportion of water is extracted by a polar solvent (ethanol, isopropanol, ethyl ether, acetone or chlorinated solvents) and then by a hydrocarbon (n-hexane a light platformate fraction, liquid butane or propane, n-hexane or benzene), or, alternatively, by an azeotropic mixture of the two. Solvent is finally removed by evaporation under reduced pressure in a stream of nitrogen or superheated steam.  An example is directed to the cultivation of Candida lipolytica on a gas-oil containing 13% by weight of n-paraffins.
Patent GB-858443-A (GB)
Title: Clarification of acidic phosphatic solutions
IPC: C01B25/235
Filed: 1958-12-04
Abstract: Acidic inorganic phosphate solutions are freed from suspended solid impurities by agitating the solution with an alkali metal silicate (e.g. Na2O.SiO2 and preferably with a mol ratio of metal oxide:silica of 1:1 to 5:1) and an organic clarification agent or agents either derived from by-products in wood-pulp manufacture, namely tall oil, tall oil pitch, soap skimmings, and the rosin acid, fatty acid and unsaponifiable fractions of tall oil, or selected from the C10-C20 aliphatic fatty acids, the rosin acids, and their alkali-metal soaps. The mixture so produced is then maintained in a quiescent state and the clarified solution is separated from the settled impurities. Solutions which may be so treated include those obtained by the aqueous leaching of acidulated phosphate rock and wet process phosphoric acid.  Flocculating agents, for example polyacrylamides and guar, may be additionally added after the silicate and organic clarifying agent.  The silicate may be added together with or after the organic clarifying agent.  The removed solids, which are normally in the form of a sludge, may be employed as an additive to fertilizers, for example, as a binding agent in triple superphosphate manufacture.ALSO:A sludge, obtained when acidic inorganic phosphate solutions are freed from solid impurities by agitation with an alkali metal silicate and an organic classification agent or agents either derived from by-products in wood-pulp manufacture, such as tall oil or soap skimmings, or selected from the C10-C20 aliphatic fatty acids, the rosin acids, and their alkalimetal soaps (see Group III), may be used, either filtered or unfiltered, in fertilizer production. Thus, nine parts of a commercial triple superphosphate may be mixed with one part of sludge, granulated in a drum granulator, and dried at about 110 DEG C. for about 1 hour.
Patent GB-1506488-A (GB)
Title: Sheet material conveyor
IPC: B65H29/12
Filed: 1975-09-24
Abstract: 1506488 Conveying sheets GRETAG AG 24 Sept 1975 [24 Sept 1974] 39160/75 Heading B8A [Also in Division G2] Sheets B are advanced in a zig-zag path by means of groups G, G<SP>1</SP> of rollers each comprising a pair of rollers 1, 2 or 1<SP>1</SP>, 2<SP>1</SP> which are spaced around the circumference of a third roller 3 or 3<SP>1</SP> and co-operate therewith to form mutually inclined entry and exit nips 6, 7 and 6<SP>1</SP>, 7<SP>1</SP>. The rollers 1<SP>1</SP>, 2<SP>1</SP> are mounted in arcuate slots 26, 27 for adjustment. Grids 22 prevent sheets from being dropped between the roller groups.
Patent GB-877108-A (GB)
Title: Improvements in or relating to self oscillating mixing circuits
IPC: H03D9/06
Filed: 1957-12-19
Abstract: 877,108. Valve frequency-changing circuits; R.F. couplings. TELEFUNKEN G.m.b.H. Dec. 19, 1957 [Dec. 19, 1956], No. 39488/57. Classes 40(6) and 40(7) A self oscillating mixing circuit comprises a mixer valve associated with an input circuit and an oscillatory circuit which is connected between the control electrode and anode of the valve and which is back coupled by a three terminal network. The valve operates under "grounded grid" conditions and the oscillatory circuit is included in the capacitive branch of an intermediate frequency circuit coupled to the anode. In order to preserve a good match between input circuit and valve over the range of input frequencies the inductance in the cathode lead is compensated for by including a capacitor between the cathode and the input circuit such that series resonance occurs at substantially the middle range of input frequencies. Referring to Fig. 1 input signals are fed to the cathode of the valve M via a double tuned transformer El and E2 and through the series capacitor Cl which compensates for the cathode lead inductance L k . The oscillatory circuit O is connected to the mixer valve in a three terminal network arrangement formed by the inter-electrode capacitances of the valve, and the intermediate frequency output is taken from a broad band filter Z1 and Z2 included in the anode circuit, the oscillatory circuit O being in series with the capacitive arm on Z1. In a second embodiment, Fig. 2 (not shown) the tuned circuits are in the form of co-axial resonators.
Patent GB-1460915-A (GB)
Title: Chemical process
IPC: C07C227/00
Filed: 1973-12-21
Abstract: 1460915 D-(-)-2-(p-Hydroxyphenyl)glycyl chloride hydrochloride BRISTOL-MYERS CO 21 Dec 1973 [26 Dec 1972] 39618/74 Divided out of 1460914 Heading C2C D - (-) - 2 - (p - hydroxyphenyl)glycol chloride hydrochloride having the formula is prepared by reacting D-(-)-2-(p-hydroxyphenyl)glycine with a molar excess of phosgene in an anhydrous inert solvent as defined hereinafter, to form a solution of the anhydride of formula removing unreacted phosgene from the reaction mixture, adding a stoichiometric excess of HCl gas to the cooled reaction mixture, and recovering the desired product. The reaction solvent is a liquid which is chemically inert to the reactants and product, is a solvent for the intermediate anhydride, and is substantially non-solvent for the desired end product, suitable solvents being dioxane, tetrahydrofuran and acetonitrile. Further non-solvents, e.g. chlorinated hydrocarbons and aromatic hydrocarbons may be added at the final stage to encourage precipitation of the product. The product may be obtained in the form of a solvate with the reaction solvent (e.g. the dioxane or acetonitrile solvate), and this may be converted to the non-solvated form by gassing in solution or suspension with further HCl gas or by slurrying with anhydrous methylene chloride.
Patent GB-1125703-A (GB)
Title: Adhesive composition
Inventor: ALLEN FRANK JOHN
IPC: C09J161/24
Filed: 1964-09-29
Abstract: 1,125,703. Mould and core materials. BAKELITE XYLONITE Ltd. 21 Sept., 1965 [29 Sept., 1964], No. 39633/64. Heading B3F. [Also in Division C3] A thermosetting adhesive comprising a powdered thermosetting resin, a mineral oil boiling above 150 C. and a thixotropic agent, e.g. silica, (see Division C3) is used for uniting the parts of foundry cores or moulds, e.g. those made from silica or zircon sand and a thermosetting resin binder. It may be used in the method of uniting mould parts claimed in Specification 812,203.
Patent GB-1125385-A (GB)
Title: Method and apparatus for stacking structural steel joists
IPC: B65G57/18
Filed: 1965-09-17
Abstract: 1,125,385. Stacking steel joists. DEMAG A.G. 17 Sept., 1965 [29 Oct., 1964], No. 39801/65. Heading B8C. A course of structural steel joists 10 (fig. 3) with openings directed downwardly, to be added to a stack on an elevating table 6, is first assembled on a platform 3 in such relation that when the platform 3 is retracted horizontally the course falls on to the top course of the stack below in a nesting relation. The joists may be fed by a pusher 2, and located by a screw-adjustable stop 5. Alternatively the end of the stroke of the pusher 2 may be varied, the platform 3 (Fig. 4, not shown) retracting towards the pusher. A lifting device (16) (Fig. 8, not shown) with grippers for lifting a course may serve to produce a layer of two courses to be pushed on to the platform 3 simultaneously. Alternate courses may be inverted by a swing- ing arm (11) (Figs. 5 and 7, not shown) which may be provided with a magnet (14). The arm may deposit the course directly on the platform 3, or the course may be inverted and lowered before it reaches the platform (Fig. 6, not shown). Operation may be effected automatically under the control of limit switches, cams, punched cards or magnetic tape.
Patent GB-982806-A (GB)
Title: Improvements in multi-cavity magnetrons
Inventor: TWISLETON JOHN ROBERT GEOFFREY
IPC: H01J23/48
Filed: 1962-10-22
Abstract: 982,806. Magnetrons. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 10, 1963 [Oct. 22, 1962], No. 39893/62. Heading HID. The output coupler of a double-strapped multi-cavity magnetron comprises concentric cylindrical or frusto-conical members 19, 21 interconnecting the straps 15, 13 and the polepiece 17 and probe 31 respectively. The straps may be incomplete rings. Posts 41 extending as shown serve to neutralize capacitive coupling between the cathode 3 and the member 21. Additionally, apertures may be provided in the members 19, 21 to influence the resonant mode wavelengths of the magnetron. The polepiece 17 may have an inner section 25 as shown. In another embodiment in which the magnetron is coupled to a coaxial line, the probe 31 is terminated by a pinch-seal and also serves as an exhaust tube during the evacuation of the magnetron. The probe is connected to the inner conductor of the coaxial line and a bell-shaped member with an hermetic seal provides a window device for coupling to the line.
Patent GB-884787-A (GB)
Title: Improvements in the means for indicating the occurrence of excessive pressure in the combustion cylinders of free-piston or semi-free-piston engines
IPC: F02B71/00
Filed: 1958-12-10
Abstract: 884,787. Engine stop gear. SOC. D'ETUDES ET DE PARTICIPATION EAU, GAZ. ELECTRICITE, ENERGIE S.A. Dec. 10, 1958 [Dec. 24, 1957], No. 39908/58. Drawings to Specification. Class 122 (4). [Also in Group XXVII] In a free-piston or semi-free-piston engine the signal indicating that the reference pressure has been exceeded may be a signal which causes the engine to stop for example by cutting of the fuel injection. A given value of the maximum pressure in the combustion cylinders is referred to as the reference pressure. The invention is based on the fact that the acceleration of a piston of a free or semi-free piston engine is substantially proportional at the commencement of its power stroke to the pressure of the associated combustion cylinder.
Patent GB-1061630-A (GB)
Title: Improvements in and relating to thermal insulation
Inventor: ARMSTRONG EDWARD
IPC: G21C11/08
Filed: 1964-01-13
Abstract: 1,061,630. Reactor pressure vessels. DARCHEM ENGINEERING Ltd. Jan. 13, 1964 [June 28, 1963], No. 39976/64. Divided out of 1,061,385. Heading G6C. [Also in Division F2] Thermal insulation comprising stacked sheets of stainless steel (with spaces between adjacent sheets) is located on the inner wall of a nuclear reactor pressure vessel by forming two or more projections on the wall and corresponding holes in the sheets for location on the projections, one of the holes affording a clearance fit on one projection and the other hole or holes being sufficiently large to allow for inaccuracies in the positioning of the projections. In one arrangement (Fig. 1), a rectangular sheet 1 to be located on four studs or projections, one in each corner of the sheet, has a first hole 2 of diameter affording a clearance fit on a stud 2A, a second slotted hole 3 of width affording a clearance fit on a stud 3A and of length sufficient to allow for any inaccuracy in the position of the stud 3A, and third and fourth holes 4 and 5 of diameter sufficiently large to allow for inaccuracies in the positions of the corresponding studs 4A, 5A. To limit seepage of gas from the space between one pair of adjacent sheets to the space between the next pair of adjacent sheets through the holes, smaller sheets or washers with tight fitting holes are placed on the studs, adjacent to each sheet. In an alternative arrangement (Fig. 2, not shown), the sheets are supported wholly by a first stud passing through a single hole in each sheet and prevented from turning or slewing by the engagement of a single slot in each sheet over a second stud, each sheet being of a size such that it overlaps its neighbouring sheets on two of its sides and underlaps its neighbouring sheets on the other two sides. The spaces between adjacent sheets are afforded by wires attached to the sheets or by wire mesh. Alternatively, the sheets are corrugated at intervals. The sheets and spacing members are secured in position by nuts threaded on the studs. The diagonally opposite corners of the sheets may be cut away so that at no corner are there more than two thicknesses of stainless steel due to the overlap of the adjacent sheets in each layer of sheets. As an alternative, the spacing members may be formed so as not to extend into the areas of overlap between adjacent sheets. These measures reduce the possibility of the sheets and spacing members being rigidly locked together on finally tightening the nuts, thus permitting relative movement of the various sheets during thermal expansion and contraction.
Patent GB-1151847-A (GB)
Title: Divider and Radix Converter Incorporating such a Divider
IPC: H03M7/08
Filed: 1966-09-09
Abstract: 1,151,847. Dividers and radix converters. INTERNATIONAL BUSINESS MACHINES CORP. 9 Sept., 1966 [28 Sept., 1965], No. 40356/66. Heading G4A. In a divider, each quotient digit is obtained by a logic circuit in response to signals from a plurality of digit positions of a dividend store and a plurality of digit positions of a quotient store, the quotient store receiving digits of the quotient produced. In Fig. 3, the bits of a quotient q, being the result of dividing a binary dividend d by 5, are obtained serially, high order first, by quotient logic 28 (details in Fig. 2, not shown). To derive a given order quotient bit, the logic 28 is responsive to the previous three quotient bits, stored in a shift register 26, and the dividend bits of the same orders as the four quotient bits mentioned. These dividend bits are obtained from a shift register 12. As each quotient bit is derived, the shift registers 26, 12 are shifted along one bit and respectively receive the latest quotient bit and (for register 12) either the next dividend bit from a one-bit store 38 fed by dividend memory 10 if this bit position is of higher order than the lowest order above the binary point or 0 if not. Once the latter point in the operation is reached, the content of one-bit store 38 is maintained constant until the end of the division. The quotient bits derived are each also inserted into the currently selected position of the dividend memory 10. The practice of storing dividend bits in the one-bit store 38 one bit time before they are needed means that this insertion of quotient bits accomplishes a further division by 2. The remainder from the composite division by 10 is deduced from the four lowest order quotient bits and the content of one-bit store 38 by decode logic 42 (details in Fig. 4, not shown) which provides a first binary-coded-decimal digit. Only three bits below the binary point need take part in the division to provide sufficient information for the remainder to be deduced. Further successive divisions by 10 are performed on successive quotients in the same manner to complete a binary to binary-coded-decimal conversion, e.g. to actuate a printer. As a modification, the four lowest order quotient bits generated during each division are not inserted into dividend memory 10 but are supplied to decode logic 42 from shift register 26 and quotient logic 28 (directly). The division-by-5 system may be used separately, quotient and dividend shift registers feeding the quotient logic which feeds the quotient shift register. The quotient and dividend shift registers respectively feed and are fed by a quotient register and dividend store. The quotient may be generated by supplying the dividend in parallel to a cascade of quotient logic blocks. Division by other integers than 5 is possible on similar principles, in general using different numbers, than above, of higher order quotient and dividend bits to feed the quotient logic. Magnetic core shift registers may be used.
Patent GB-970041-A (GB)
Title: Improvements in or relating to geared mechanisms
IPC: F16H57/12
Filed: 1959-11-27
Abstract: 970,041. Toothed gearing. S. DAVALL & SONS Ltd., and R. W. G. SOMERVELL. Oct. 6, 1960 [Nov. 27, 1959], No. 40398/59. Heading F2Q. Apparatus for avoiding or reducing backlash between a driven wheel 12 and a driving wheel 11 comprises a spring 24 to bias the wheel 12 anticlockwise into engagement with the wheel 11, the spring being coupled to the wheel 12 by a coupling which allows lost motion between the spring 24 and the wheel 12 when the wheel is rotated clockwise but not when the rotation is anticlockwise. Cams 14 and 15 are freely pivoted to the spindle 13 of the driven wheel 12 the arm 15 being urged anticlockwise by the spring 24. Fixed to the arm 15 is a friction pad 19 which is urged, by means of a spring 21, into contact with a rotatable wheel 18, a pinion 17, in contact with the wheel 12, being fixed coaxially with the wheel 18. When the wheel 12 is initially driven clockwise the wheel 15 and pad 19 are in firing contact, the pinion 17 is thus locked, and the arms 14 and 15 rotate with the wheel 12. The tension in the spring 24 soon becomes greater than that in the spring 21, and the arms separate slightly to allow rotation of the wheel 18 and hence the pinion 17, a position of equilibrium thus being reached. The torque exerted by the spring 24 is maintained when the driving wheel 11 is slowed or stopped, thus backlash is reduced between the wheels 11 and 12. The wheel 11 can be given slight reverse rotation without upsetting the spring bias, and the arm 15 can, if desired, be allowed to contact a stop 26 during normal operation, before a state of equilibrium is otherwise reached.