baber/WOPTO huggingface dataset:
Patent GB-826771-A (GB)
Title: Improvements in waste heat recovery apparatus for steam boiler plants
Inventor: FIRGAU WERNER
IPC: F22D1/38
Filed: 1956-12-31
Abstract: 826,771. Thermal regenerators. SVENSKA ROTOR MASKINER A. B. Dec. 31, 1956, No. 39629/56. Class 64(1) In an apparatus for the recovery of waste heat from boiler flue gases, the gas stream from the boiler F is divided into two branches one of which passes through a rotary regenerative air preheater L2 and the other of which flows through the boiler economizer E2, the two gas streams being reunited and directed through a second rotary regenerative air preheater L1, the heaters L1, L2 being combined as two-stage rotary regenerative apparatus in a unitary structure. On the air side of the heat recovery unit, a duct KM may be provided for withdrawing a portion of the air (e.g. for use in coal pulverizing mills) after it has been passed through the heater L1 and before it reaches the hotter stage L2. In a further form described, the economizer E2 is combined with the air heating units in the unitary structure.
Patent GB-1137170-A (GB)
Title: Method of synthesizing in vitro biologically active intact nucleic acid and new biologically active products and replicases therefor and method of making such replicases
IPC: A61K31/70
Filed: 1966-09-06
Abstract: 1,137,170. Nucleic acids; enzymes. UNIVERSITY OF ILLINOIS FOUNDATION. 6 Sept., 1966 [29 Sept., 1965; 18 March, 1966; 23 June, 1966], No. 39867/66. Heading C3H. Biologically active intact nucleic acid is synthesized in vitro by providing an activated system capable of synthesizing biologically active nucleic acid for prolonged or extensive periods, which system includes biologically active intact nucleic acid, the specific replicase for said nucleic acid which is free of detectable destructive contaminants, and nucleotide base component or components, and recovering the synthesized nucleic acid from said system. The replicase may be obtained from a bacterium (e.g. E. coli) infected with the appropriate nucleic acid or with a virus containing the nucleic acid.
Patent GB-936549-A (GB)
Title: Process for purifying gibberellins
IPC: C12P27/00
Filed: 1961-11-07
Abstract: A method for purifying gibberellins comprises treating an impure aqueous solution of alkali metal salts of gibberellins with activated carbon, the said solution being obtained by suspending in water raw crystals containing 70-85% of gibberellins and adding thereto the necessary amount of caustic alkali solution to raise the pH of the solution to around 5, extracting the gibberellins from the treated solution with an organic solvent, preferably ethyl acetate, and recovering crystalline gibberellins from the extract.  The aqueous solution preferably contains 15 to 20 grams per litre of alkali metal salts of gibberellins and 5-10% by weight of carbon based on the gibberellins is preferably used. The treated solution is preferably acidified to pH 3 before extraction.  Two methods of obtaining the raw gibberellin crystals are described:-(1) by extraction and crystallisation of gibberellins from the first fractions desorbing at pH 5-8 obtained by percolating aqueous ammonia over a column of weak p  anion-exchange resin which has been used to absorb gibberellins from a culture medium.  (2) From impure extraction fractions, production residues, crystallisation mother liquors, solvents used for washing crystals or other impure extracts, e.g. acetone extracts from charcoal absorption by: (a) diluting with water, e.g. 10 times, (b) adjusting to pH 4,5 with acid or a weak cationexchange resin in the H-form, (c) absorbing on a weak anion-exchange resin, e.g. in the formate form, and (d) continuing as in (1).  Specification 936,548 is referred to.
Patent GB-1270738-A (GB)
Title: Cutting tool
Inventor: STIER HENRY W
IPC: B23B27/16
Filed: 1970-08-19
Abstract: 1,270,738. Cutting tools. W. C. BLATCHFORD (Henry W. Stier). 19 Aug., 1970, No. 40032/70. Heading B3T. A cutting tool comprises a holder with a recess 2 at one end in which a cutting insert 6 is retained by a pin 15 which extends from a bore 10 in the bottom of the recess into an aperture 8 in the insert. The pin 15 is engaged coaxially with a lower part 11 engaging in the bore 10 in the holder and is biased upwardly by a spring 18 and having a transverse wedging surface 23. A wedging member 24 is provided in the form of a bent wire having a coiled head 25 and a cranked tail portion 26 which is located in a bore 27 in the part 11, the head 25 engaging the wedging surface 23 of the pin 15 and the inner surfaces of the aperture in the insert which urges the insert into clamping engagement with the shoulder 4 of the recess 2, under the biasing pressure of the spring 18. An insert seating plate 7 may be provided which is retained in the recess by the lower part 11 and which is provided with a conical surface 12 which engages a corresponding surface of the seating plate. The insert is released from the holder by depressing the pin 15 against the spring to free the wedging member.
Patent GB-1192953-A (GB)
Title: A Container for Photographic Transparencies which can also be used to View a Transparency
IPC: G03B21/54
Filed: 1967-09-05
Abstract: 1,192,953. Transparency viewer. FERRANIA S.p.A. Sept.5, 1967 [Sept.22, 1966], No. 40497/67. Headings G2A and G2J. A container and viewer for photographic transparencies comprises a base casing 5, and a lid 1, the end face of the casing being provided with a magnifying lens 7 and having a holder 4 for the transparency to be viewed which is slidable along the casing so that the transparency may be brought into focus. As shown in Fig. 1, the lens 7 is positioned in an opaque plastics casing 5 having an opaque plastics lid 1, the wall 8 opposite the lens 7 being of a transparent or translucent plastics. In a modification Fig. 5, (not shown) the casing is formed in two parts, the part behind the focal plane of the lens being of transparent plastics material.
Patent GB-1283738-A (GB)
Title: Method for separation of isobutyl and n-butyl alcohols from a mixture of oxo-synthesis products
Inventor: SILICH MATILDA ILLARIONOVNA
IPC: C07C29/80
Filed: 1969-08-14
Abstract: 1283738 Butyl alcohols V M OLEVSKY and J A GROMOGLASOV 14 Aug 1969 40584/69 Heading C2C A method of separating isobutyl and n - butyl alcohols from a mixture of oxo-synthesis products comprises: (a) subjecting the mixture to rectification in the presence of water contained in the mixture to obtain a still liquor containing isobutyl and n-butyl alcohols, high boiling-point by-products of the oxo-synthesis and dibutyl ether, and collecting at a temperature of from 84‹ to 87‹ C. a distillate containing water, butyric aldehydes, isobutyl and butyl-isobutyl ethers and up to 25% of isobutyl alcohol; (b) subjecting to rectification the still liquor obtained in step (a) first at atmospheric pressure and at a temperature of up to 160‹ C. to obtain a mixture of butyl alcohols and dibutyl ethers and then under vacuum to separate a mixture of the high boiling point by-products; (c) subjecting to rectification the mixture of butyl alcohols and dibutyl ethers obtained in step (b) to obtain a distillate containing isobutyl alcohol and a still bottoms containing n-butyl alcohol and dibutyl ether, and separating isobutyl alcohol from the said distillate; and (d) subjecting the still bottoms to rectification in the presence of water separated from the mixture of oxo-synthesis products in step (a) in order to isolate n-butyl alcohol and collect at a temperature of from 90‹ to 92‹ C. a distillate composed of n-butyl alcohol, dibutyl ether and water. The rectification of step (a) is preferably effected with concomitant reflux with a portion of the organic and aqueous layers resulting from the separation into layers of the distillate collected at a temperature of from 84‹ to 87‹ C. Separation of the mixture of high boiling-point byproducts obtained in step (b) is preferably carried out by vacuum fractionation at a residual pressure of not greater than 200 mm Hg. The rectification of the still bottoms obtained in step (c) is preferably carried out while feeding as reflux a portion of the aqueous layer obtained as a result of rectifying the stock mixture of oxosynthesis products in step (a) and also while feeding the entire aqueous layer and a portion of the organic layer from the distillate obtained by rectification of said still bottoms.
Patent GB-1354212-A (GB)
Title: Routing machine
IPC: F16L59/05
Filed: 1972-09-01
Abstract: 1354212 Routing machine ARMSTRONG CORK CO 1 Sept 1972 [15 Dec 1971] 40716/72 Headings B3K and B3B [Also in Division B4] Apparatus for forming a longitudinal bore in an elongate workpiece of constant cross-section comprises a frame including elongate workpiece support means for establishing a fixed orientation of the elongate axis of the workpiece, and tooling carried by said frame and including blade means and router means supported in a radial plane that includes the central elongate axis of the workpiece, said routing means including a shank driven in rotation on an axis extending generally radially in said plane and generating a cutting surface of revolution having a crosssection of the desired characterized bore section plus an angular offset at least as great as the shank diameter, said blade means having a maximum thickness substantially equal to the shank diameter. The workpiece shown is of foamed plastics having an outer sheath 10. In operation a workpiece is pushed by hand or by mechanical means into a fixed guide bore system 15. A blade 16 slits the workpiece into two halves hingedly connected by sheath 10. Blades 18, 20 ensure correct alignment of the workpiece to meet router 19. Element 38 engages flap 12 of the sheath and holds it out of the way from blades 18, 20 and router 19. The bore formed by the router need not be of circular cross-section and the guide supports could be designed to take workpieces other than of circular cross-section. Fig. 7 shows an embodiment where the workpiece is stationary and tool 71 is moved. Stops 63 hold the workpiece still. The apparatus of Fig. 1, may be mounted vertically.
Patent GB-1526924-A (GB)
Title: Salts of pesticidally active n-phenyl formamidines
IPC: A01N25/10
Filed: 1974-09-19
Abstract: 1526924 N-phenyl formamidine salts with acidic polymers CIBA GEIGY AG 16 Sept 1975 [19 Sept 1974 14 Dec 1974] 40815/74 and 54151/74 Heading C3P Water-soluble or dispersible salts are formed between a pesticidally active N-phenyl formamidine and a polymer containing free acid groups, e.g. an acrylic or methacrylic acid homo- or co-polymer, or a sulphoethyl methacrylate copolymer.
Patent GB-1023665-A (GB)
Title: Assembly for attachment of a covering sheet in spaced relation to a wall
IPC: E04F13/08
Filed: 1962-10-29
Abstract: 1,023,665. Wall linings. A. FISCHER. Oct. 29, 1962 [Dec. 1, 1961], No. 40854/62. Heading E1V. [Also in Division F2] A sheet 1 of material is held, in spaced relation to a wall 6, between the head of a screw 3 (secured by a wall plug 5) and a nylon nut 2, Fig. 2, threaded on the screw, or between the screw head and a sleeve 11, Fig. 5, spread by a conical nut 12a, e.g. of metal or nylon, through which the screw is screwed after the spreading. The screw 3 may have a self-tapping thread like that of a woodscrew thread but of uniform diameter. The screw 3 is screwed through the nylon nut into the wall plug until the sheet 1 is spaced correctly and the nut is then tightened up to the back of the sheet, by a spanner 8. In Fig. 5, the screw 3, bearing the sleeve 11 and nut 12a, is inserted, then drawn out, by a tool inserted under the screw head (or under the head of a short screw inserted temporarily for the purpose) to cause the nut 12 to spread the sleeve, before the screw is driven home.
Patent GB-981719-A (GB)
Title: Improvements in or relating to knitting machines
IPC: D04B15/28
Filed: 1963-10-16
Abstract: 981, 719. Knitting-machines. SCOTT & WILLIAMS Inc. Oct. 16, 1963 [Nov. 2, 1962], No. 40940/63. Heading D1C. To avoid the latches of the inoperative needles being unintentionally closed during reciprocatory knitting of the heel of a stocking on a two feed machine, due to the latches becoming partially magnetized and adhering to the lower cam surfaces 54, 60, 66, 72 of the tapered cam portions of the latch ring 16 on each side of the yarn feeder gap at each feeding station so that they are drawn upwardly towards a closed position as they move past each feeding station on each direction of reciprocation, a recess 78, 82, 88 is provided in the latch ring in advance of each feeding station and is curved to urge the latches of the needles open as they follow the contour of the recess so that contact between them and the latch ring is broken thereby breaking the magnetic contact between the latch and latch ring whereby the latches tend to remain in an open position as they pass the yarn feeder gap. Specification 839,178 is referred to.
Patent GB-1025362-A (GB)
Title: Improvements in or relating to fungicides
IPC: A01N47/48
Filed: 1962-10-30
Abstract: Fungicidal compositions comprise methylene bisthiocyanate and a carrier.  Specified forms are dusts, emulsifiable concentrates, wettable powders and emulsions.  The compositions may contain non-ionic surface active agents and known pesticides, herbicides or fertilisers.  The compositions are used to treat soil and plants.
Patent GB-412052-A (GB)
Abstract: 412,052. Single-step counting-apparatus. BOISTEUX, L. J. H., 56, Avenue de Valenton, Villeneuve St. Georges, Seine-et-Oise, France. July 27, 1933, No. 21182. Convention date, July 27, 1932. [Class 106 (i).] In a machine for counting coins sorted according to their denomination and in which separate counters are associated with a stationary plate having apertures of widths corresponding to the poins to be sorted, the ratchet wheel 31 of the appropriate counter is actuated by a rotating trigger arm 26 when the coin 10 engaged by the arm 20 has been pressed through the corresponding opening in the apertured sorting plate, 12.
Patent GB-1413211-A (GB)
Title: Sliding seat
IPC: B60N2/075
Filed: 1973-09-03
Abstract: 1413211 Bearings DAIMLER-BENZ AG 3 Sept 1973 [5 Sept 1972] 41341/73 Heading F2A [Also in Division A4] A sliding seat is provided with a guide assembly which comprises a guiding rail 3 and a guided rail 6 wherein one of the rails 6 has mounted on it cheeks 9, 10 by which it slidably engages the other rail 3, and an elastomeric layer 11 interposed between at least one cheek 9 and the one rail 6.
Patent GB-1278074-A (GB)
Title: Improvements in and relating to internally meshing gear pumps
Inventor: ECKERLE OTTO
IPC: F01C21/10
Filed: 1969-08-20
Abstract: 1278074 Rotary positive-displacement pumps O ECKERLE 20 Aug 1969 [22 Aug 1968] 41499/69 Heading F1F In an internally-meshing gear-pump a shaft 1 for the pinion has bearings 7, 8 which to minimize wear are attached to the casing end-covers 9, 10 by webs 11, 12. The pressure of the working fluid in zones 13, 14 can thus deflect the bearings outwardly and thereby compensate for shaft deflection caused by said pressure acting on the pinion in direction 4. Alternatively, one of the bearings is attached to the respective end-cover by two relatively thick and thin webs, Fig.4 (not shown), which permit deflection similar to that shown in Fig.2. In another embodiment, Fig. 5 (not shown), the bearings are split axially so as to render the upper half of each bearing capable of deflecting with the shaft. In the embodiment shown in Figs.6 and 7, the pinion shaft 31 has needle-roller bearings supported by flexible webs 44, 45 that are engaged by discs 42, 43 through which axial thrusts are transmitted from pressure-compensating zones 40, 41 for endsealing discs 37, 38 abutting the gear-wheels. A pressure-loaded piston 36 engages with the internally-toothed gear-wheel 32. A filler piece 34 is supported by a bolt 35.
Patent GB-1002336-A (GB)
Title: Improvements in or relating to drawing frames
Inventor: GASSER HERMANN
IPC: D01H5/62
Filed: 1961-11-21
Abstract: 1,002,336. Drafting-apparatus. LUWA A.G. Nov. 21, 1961, No. 41688/61. Heading D1D. In apparatus for cleaning the rollers of a drawing-frame comprising strip- or bar-shaped strippers 21 cooperating with the rollers, and lower and upper box-shaped suction-ducts 10,11, each duct being formed with an opening 23, 24, in the area of each of the rollers, one end of each of the suction ducts is open to draw in, carrying-air, and the opposite ends of the ducts are connected by a manifold 12 to a suction-pipe 13, the manifold incorporating a flap 18 which is movable between a position closing off one of the ducts and a position in which both ducts are open, the open position of the closable duct being such as to produce different pressures in the two ducts, which the said openings in the ducts form slot-shaped nozzles each arranged to draw air from the region of the diver path past the corresponding roller, the volume of air drawn into the upper suction-duct differing from that drawn into the lower duct according to the pressure difference between these two ducts. In this way, the air drawn into the ends of the ducts removes lint removed from the rollers by the strippers, while air passing through the nozzles removes lint off the sliver and directly off the rollers. It is also stated that the air currents created serve to discharge electrostatic charges generated on the rollers and the sliver, the air being charged for this purpose if desired. The openings 20 extend over the full width of the rollers, the flap 18 is loaded by an interchangeable tension-spring 18, and the duct 14 is hinged so that it can be raised for access to the sliver etc; when this is done the flap moves to seal off the duct 10. Side-walls can be provided to cut off the lateral intake of air and cause air-currents to pass from one duct to the other past the sliver. In Fig. 1, each opening is defined by the corresponding stripper and a plate 22 and the ducts are connected by spaced packages 16 leaving space between them for the sliver to pass. In Fig. 2, the plates 22 are dispensed with, and the sliver passes to the coiler through a tapered tube 37 and a trumpet 31 protected by a cowling 30 having an air-inlet 36 and an outlet 34 into the suction-pipe to remove dust accumulating in the cowling.
Patent GB-906207-A (GB)
Title: High frequency tube apparatus and coupled cavity output circuit therefor
IPC: H01P7/06
Filed: 1959-12-09
Abstract: 906,207. Velocity-modulated tubes. VARIAN ASSOCIATES. Dec. 9, 1959 [Jan. 2, 1959], No. 41940/59. Class 39 (1). High-frequency tube apparatus, e.g. a klystron, comprises an unloaded first cavity resonator 27 through which is directed a current modulated beam of electrons, which is transformed by the resonator 27 into electromagnetic energy, a second cavity resonator 54 critically coupled to the first cavity resonator, and an external load coupled to the second cavity resonator, the first and second cavity resonators being tuned to substantially the same frequency at or near the centre of the pass band of the apparatus and the second cavity resonator being loaded to a Q value less than, preferably 0.5 to 0.8 of, the Q value required for maximum power transfer when only the first cavity is loaded, where the Q value is defined as the ratio of the load impedance to the characteristic impedance of the cavity. Input is applied via a coaxial line to a cavity resonator which is followed by a plurality of, preferably five, buncher cavities all stagger tuned and the current modulated beam traverses a gap 17 in the first cavity resonator 27, inductively tuned by a piston 61, and critically coupled through an iris 53<SP>1</SP> to the second cavity resonator 54 capacitively tuned by a movable slug 66, the output being delivered to a waveguide 58 through an iris 55<SP>1</SP>. The apparatus is stated to have a higher halt power bandwidth than a similar single output cavity device, being about 5% for a one megawatt amplifier operating in the range 1700-5000 Mc/s. Specification 836,871 is referred to.
Patent GB-1344902-A (GB)
Title: Warp beams
IPC: D02H13/28
Filed: 1971-09-09
Abstract: 1344902 Warp beams ERICH SCHOLZE KG 9 Sept 1971 [24 Sept 1970] 42026/71 Heading DIE  An adjustable length warp beam has tubes 1, 2 screwed into each other and held in position by a locknut 6. The external thread 3 may be covered by a metal or plastics sleeve 7 and the flanges 10 are held on the tubes by square ended collars 8.
Patent GB-1201332-A (GB)
Title: Purification of phytohaemagglutinin
Inventor: HURN BARRY ANTHONY LINCOLN
IPC: C07K14/415
Filed: 1966-09-20
Abstract: 1,201,332. Phytohaemagglutinin. WELLCOME FOUNDATION Ltd. 13 Sept., 1967 [30 Sept., 1966], No. 42046/66. Heading A5B. Phytohaemagglutinin with an increased relative content of mitogenic component is prepared by extracting the crude phytohaemagglutinin into an aqueous medium, precipitating the proteinous components with an inorganic salt such as ammonium sulphate, or an organic solvent, e.g. ethanol, re-dissolving the precipitate in an aqueous medium removing unwanted proteinous components which are rendered insoluble by dialysis, preferably at pH 6.8 to 7, at low ionic strength of below 0.05M, applying the proteinous components to an adsorbent comprising cellulose phosphate, calcium phosphate alumina Cy gel, carboxymethyl cellulose or sulphoethyl cellulose and eluting the proteinous components from the adsorbent to provide a fraction rich in mitogenic component. Preferably cellulose phosphate at pH 4.5 to 7 is employed as adsorbent The dialysed solution or eluent from the adsorbent may be chromatographed on a cross-linked xerogel, e.g. dextran cross-linked with glyceryl bridges to remove impurities.
Patent GB-1384499-A (GB)
Title: Conveyor belt
IPC: B65G43/02
Filed: 1973-09-07
Abstract: 1384499 Detecting tears in conveyer belts CONTINENTAL GUMMI-WERKE AG 7 Sept 1973 [20 Sept 1972 (2)] 42085/73 Heading B8A Conductor loops are embedded at longitudinally spaced intervals in a conveyer belt of rubber or rubber-like elastomeric material, and each comprise a cable 6a comprising a copper core 36 around which outer strands 26 are wound, the strands each being produced by twisting three strands 16 comprising a number of copper wires, the diameter of the cable 6a being 40 or 50 times that of each individual wire. The wires may be tin plated and where spliced are brass plated.
Patent GB-1242116-A (GB)
Title: An improved road or the like surfacing structure
IPC: E01C9/08
Filed: 1968-09-05
Abstract: 1,242,116. Temporary roadways. MANNESMANN A.G. 5 Sept., 1968 [6 Sept., 1967; 8 Dec., 1967], No. 42189/68. Heading E1G. In a temporary roadway wherein hollow planks have pivotally interengaging longitudinal edges formed respectively by a tube 2 and an arcuate member 2' secured between upper and lower plates 10, 11, as in the parent specification, adjacent planks are held together by a link 6 releasably engaging end projections 4 on the planks. The planks may be trapezoidal in plan view for laying along straight or curved lines; may be nailed to the ground; may have an underlying layer e.g. of longitudinal planks; and may have a corrugated or anti-slip coating. The links may be in two parts or be of adjustable length.
Patent GB-1512650-A (GB)
Title: Production of pyridine and 3-methyl pyridine
IPC: C07D213/12
Filed: 1975-10-15
Abstract: 1512650 Production of pyridine and 3-methyl pyridine DEUTSCHE GOLD-UND SILBERSCHEIDEANSTALT 15 Oct 1975 [17 Oct 1974] 42207/75 Heading C2C A process for the production of pyridine and 3-methyl pyridine comprises reacting acrolein with ammonia in the gas phase on a catalyst in a fluidized bed reactor, the ammonia in the gas phase being introduced into the base of the reactor so as to form the fluidized bed, and the acrolein in the gas phase being introduced into the fluidized bed at one or more points above the base of the reactor. The ammonia and/or the acrolein may be introduced in admixture with an inert gas.