baber/WOPTO huggingface dataset:
Patent GB-1338130-A (GB)
Title: Method of treating refuse and building blocks including treated refuse and apparatus for carrying out such method
IPC: C10B47/46
Filed: 1971-09-22
Abstract: 1338130 Treating refuse SOC D'ETUDES TECHNIQUES ET D'ENTREPRISES GENERALES (SODETEG) 22 Sept 1971 [25 Sept 1970 27 Aug 1971] 44210/71 Heading C1K Household refuse which in part is fermentable is comminuted, graded, and possibly magnetically separated, then substantially completely enclosed in or by a gas permeable refractory material and subsequently pented in a reducing or non-combustion supporting atmosphere to a temperature of 800-1300‹ C. in an enclosed tunnel kiln 30 with stepwise temperature zones 31, 32, 33, from whence pyrolysis gases are removed to leave an ash product. The refractory material can be (a) a perforated metal, porous brick, or refractory fabric enclosure; or (b) a ceramic formed by either immersing the refuse, loose, in a ceramic slip or compressing it to a block and surrounding it with ceramic slip in a mould, the slip on entering the kiln then solidifying to a porous ceramic; or (c) a preshaped bucket like container, part of which is porous, which can be stacked vertically with other such containers and heated in a tunnel kiln arranged vertically.
Patent GB-1535018-A (GB)
Title: Articles of footwear
IPC: A43B9/02
Filed: 1977-10-25
Abstract: 1535018 Boots &c PADMORE & BARNES INTERNATIONAL Ltd 25 Oct 1977 [27 Oct 1976] 44248/77 Heading A3B A moccassin-type shoe comprises a portion 2 which covers and is attached to an outsole 1 and which has an upturned continuous rim 3 around the shoe, to which rim is stitched a vamp 4, quarters 5 and counter 6. The shoe is made by stitching top line strips 8, quarters 5 and counter 6 and together with vamp 4 hand stitched to the rim 3 of portion 2, preformed holes being formed in the components. The shoe is then placed on a 'nature-form' last and heat set in a moist atmosphere (135‹C). After heating a midsole of crepe rubber is adhered and stitched to portion 2 and sole completed by adhering a wedge under arch and heel and outsole, both of crepe rubber.
Patent GB-1389468-A (GB)
Title: Process for avoiding undesired emissions during the cleansing of coke-oven gas
IPC: B01D53/52
Filed: 1972-09-26
Abstract: 1389468 Purifying coke oven gas DR C OTTO & COMP GmbH 26 Sept 1972 [11 Oct 1971] 44316/72 Heading C5E In a process for removing hydrogen sulphide from coke-oven gas the gas is washed with an aqueous alkaline solution, the alkaline solution is regenerated in an oxidizer by the introduction of air to produce sulphur and the gas mixture emerging from the top of the oxidizer and containing impurities such as ammonia and hydrogen cyanide is added to the combustion air fed to a burner.
Patent GB-1512339-A (GB)
Title: Seal arrangement for a tube tyre and rim
IPC: B60C29/06
Filed: 1976-10-26
Abstract: 1512339 Tube tyres CATERPILLAR TRACTOR CO 26 Oct 1976 [26 Jan 1976] 44494/76 Heading B7C Escape of inflation air from an inflation space 34 via opening 32 and between tube-tyre base 16 and rim 36 is prevented by sealing means including a raised sealing ridge (or rib). The sealing means may comprise a rib or ribs surrounding the opening and integral with the tyre, or otherwise secured thereto (Figs. 3-7 not shown), or ribs 98, 100, 102 surrounding the opening 32 and formed in the rim, or a pair of ribs 106, 108, on each circumferential side of the opening, and the tyre base portions beneath inextensible hoops 26.
Patent GB-1107619-A (GB)
Title: Apparatus for forming and inserting looped threads in surgical sponges
Inventor: NICOL HERBERT ERSKINE
IPC: A61F13/20
Filed: 1966-10-06
Abstract: 1,107,619. Surgical swabs. PRATT MANUFACTURING CORPORATION. 6 Oct., 1966, No. 44592/66. Heading ASR. [Also in Division D1] Apparatus for laying looped X-ray-opaque thread on a gauze web, which is to be cut and folded to form swabs, comprises a pair of blades 29, 35, between which the thread 44 passes, is twisted to form loops (L) and fed to the gauze as the blades move relative to one another, and rollers 38, 39, 40 for pressing the looped thread against the gauze. The web and looped thread are fed between rollers 38, 39, and pass around the upper roller 39, against which they are pressed by a heated ironer roller 40. The thread is fed through a tubular guide 43 and an eye 45 and passes between the blades 29, 35 and across a guide plate 46 to the nip of the rollers 38, 39. The blades are carried by arms 28, 34 which are periodically oscillated about pivots P provided by shafts 24, (31). As the blades approach the rollers along overlapping arcs (A and B, Figure 9), at a rate greater than the rate of travel of the web they carry the thread between them and twist it due to their relative movement laterally of the thread so that loops (L) are formed and are laid on the web on top of the lower roller 38. The blades are then withdrawn, the upper more flexible blade 29 being elevated from contact with the thread by a bar 48 so that ony imparted twist remaining in the thread is released. After a dwelling period during which unlooped thread is laid on the web, the forward movement of the blades are repeated. The blade arms 28, 34 are mounted on posts 27. 33 carried by arms 26 (32) rigid with the shafts 24 (31), the shafts being periodically oscillated through links 20, 22, (21, 30) by a rocker shaft 15 under the control of a cam follower 13 which bears against a rotary cam 12.
Patent GB-924909-A (GB)
Title: Exposure control apparatus for making color prints
IPC: G03B27/73
Filed: 1960-12-29
Abstract: 924,909. Automatic light control systems. SIMMON BROS. Inc. Dec. 29, 1960 [Jan. 18, 1960], No. 44600/60. Class 38 (4). [Also in Group XL (b)] In an exposure control apparatus for photographic colour printers and enlargers is provided with a plurality of colour filters positioned by reversible motors in dependence on the measured intensity of the light passing through a film transparency and preselected values, dependent on the magnification and intensity of light of the primary colours, required for the making of a satisfactory photographic print. As shown, Fig. 1, a colour printer comprises light sources 5 arranged around an integrating sphere 12 having a non-glossy diffusely reflecting interior, the reflected light being uniformly distributed over a film transparency 13. Adjustable filters 8, 9, 10 in colours complementary to primary colours red, green and blue are positioned by reversible motors 14, 15, 16. A light distributing element, not shown, interposed between a printer lens and the sensitized paper, has three radially spaced horizontal ports through which the light from the sphere passes to photo-multiplier tubes via colour filters. In a filter control arrangement, Fig. 2, a density predicting arrangement comprises an isolating transformer 23 supplying a resistor 18, settable to the desired exposure time, and a resistor 20, settable to the desired magnification, connected as shown. The output voltage from the density predictory arrangement is fed to a colour predicting arrangement 31 comprising parallel connected potentiometers 43-45 adjustable in dependence on the desired colour rendition. The three output voltages from the colour predicting arrangement are then rectified and smoothed by components 47-50, 52-56 and applied as bias voltages to thyratrons 82. Photo-multipliers 63-65 are each illuminated via a colour filter for a primary colour and the output voltage varies the bias of the associated thyratron to energize through a relay 93 the appropriate field 103, 104 of a reversible motor 14-16 positioning the complementary filter to restore the desired colour rendition. U.S.A. Specifications 2,574,264, 2,921,498 and 3,027,801 are referred to.
Patent GB-1520253-A (GB)
Title: Shield for manually-operable valves
IPC: F16K35/06
Filed: 1975-10-13
Abstract: 1520253 Locks VALVESHIELD Ltd 13 Oct 1975 [15 Oct 1974] 44664/74 Heading E2A [Also in Division F2]  A lockable two part cover 1, 2 is positioned around a stem of a manually operable valve so as to loosely enclose the operating member and is locked into position by a lock provided on one of the parts so as to prevent unauthorised adjustment of the valve. Either part may be provided with an indicator showing the setting of the valve prior to locking the cover e.g. a window and plate provided with appropriate legends.
Patent GB-1024989-A (GB)
Title: Playback of high-frequency signals recorded on a magnetic tape
IPC: H04N5/911
Filed: 1964-11-04
Abstract: 1,024,989. Playing back magnetic television signal tapes. LOEWE OPTA A.G. Nov. 4, 1964 [Nov. 6, 1963], No. 45044/64. Heading G5R. Where, due to frame-pulses or tape dropouts, 8, 9, Fig. 3a (not shown), there are interruptions in the envelope of the F.M. waveform on playback, there will be corresponding excursions 12, 13, Fig. 3b (not shown), below the black level in the demodulated waveform. To eliminate these, a diode filter circuit, Fig. 4 (not shown), feeds back these interfering pulses, such that those corresponding to the frame pulses, 27, Fig. 5a (not shown), are adjusted by means 23 to just restore the F.M. envelope, Fig. 5b (not shown), so that the interference is reduced to short-term periods at black level, which are visually innocuous. The time-constant of the circuit, Fig. 4 (not shown), however, is such as to prevent feedback of the F.M. carrier while responding to the shortest likely drop-out (some 2 Á-sec.).
Patent GB-1404163-A (GB)
Title: Polymerization reactor
IPC: C08F2/00
Filed: 1972-09-29
Abstract: 1404163 Mixing apparatus; polymerisation apparatus MITSUI TOATSU CHEMICALS INC 29 Sept 1972 45150/72 Headings B1C and B1X A continuous polymerisation reactor 1 especially for making styrene polymers and copolymers has an inlet 4 and outlet 5 at opposite ends, a screw or helical ribbon agitator 3 within a draft tube 2, and an auxiliary agitator 7 in the region of the inlet which as shown is coaxial with and may be rotated in the same or opposite sense as the agitator 3 and at the same or a different speed. The draft tube 2 may be ¢ to ¥ the diameter of the reactor; both the draft tube and the reactor wall may be hollow for the passage of a heat exchange fluid. The auxiliary agitator 7 may be of turbine impeller, core, disc or paddle type. In operation the reaction temperature is controlled by feeding the monomer at a temperature lower than that of the reaction liquid.
Patent GB-1450608-A (GB)
Title: Flexible light guide
IPC: F21Y105/00
Filed: 1974-10-18
Abstract: 1450608 Endoscopes G NATH 18 Oct 1974 [19 Oct 1973 11 July 1974] 45303/74 Heading A5R [Also in Division G2] An endoscope, see Fig. 4 (not shown), which may be used for coagulating blood comprises a flexible tube of a plastics material containing a liquid which acts as a light guide for infrared radiation (see Division G2) the interior of the tube communicating by a duct with a liquid reservoir. A tungsten lamp 50 or an Nd-YAG laser directs light into the tube the exit end of which either comprises a quartz window 54 coated or capped with a carbon fluorine polymer, or is sealed by fusing. Illumination is by an optical fibre light guide 44.
Patent GB-1122546-A (GB)
Title: Process for preparing methyl methacrylate
IPC: C07C69/54
Filed: 1966-10-11
Abstract: Methyl methacrylate is prepared by reacting a mixture of methacrylamide sulphate and sulphonic acid with methanol at 105 DEG to 130 DEG  C. and at above atmospheric pressure, the mixture if desired containing up to 0.2 mol. of water per mol. of methacrylamide sulphate.  Crude methyl methacrylate is recovered by dilution with water, at least 2 mols of water per mol of methacrylamide sulphate, followed by a phase separation, and purification by distillation. The methacrylamide sulphate can be prepared either by mixing methacrylamide and sulphuric acid, by the reaction of acetone cyanhydrin with sulphuric acid, or by the reaction of methacrylonitrile, water and sulphuric acid, and examples are described.
Patent GB-1150849-A (GB)
Title: Process for Purifying Methanol by Distillation
IPC: C07C31/04
Filed: 1967-10-05
Abstract: 1,150,849. Methanol, purification by distillation. ALLIED CHEMICAL CORP. 5 Oct., 1967 [6 Oct., 1966], No. 45565/67. Heading BIB. Methanol, contaminated with dimethyl ether, ethanol and higher alcohols, is purified by distillation in a system of three fractionating columns 19, 39, 46, each operated with major reflux; the crude methanol is submitted to extractive distillation with a countercurrent of hot water in column 19, dimethyl ether and other readily volatile impurities being eliminated through vent-cooler 35 and in non-reflexed condensate 36, the bottoms from column 19 are distilled in column 39 wherein all the methanol is vapourised and the bulk of the water flows to the base, the vapours are partially condensed in condenser 43 and the non-condensed part of the distillate is rectified in column 46, yielding methanol as condensate the major part of which is refluxed to column 46, and the required purified methanol (99.95%) product being withdrawn through valve 74 or valve 76. If the distillate from column 46 contains residual low-boiling impurities, the required purified methanol is withdrawn as a liquid side-stream through valve 76; and the non-refluxed part of the overhead condensate is passed through line 77 to column 19. Crude methanol from a catalytic synthesis flows from line 11 into tank 12 where dissolved gases and some methanol flash off. The gases are scrubbed with recycle water in scrubber 14 in order to remove methanol, the scrubbed gases being vented through line 15, and the dilute aqueous solution being supplied through line 16 and heat-exchanger 18 to the upper section of column 19. The de-gassed crude methanol withdrawn from the base of tank 12 is neutralized with caustic alkali in line 23, and then fed through heat-exchanger 25 and line 26 into column 19. A liquid side-stream containing higher alcohols is withdrawn from the lower section of column 39 and is passed through cooler 57 to decanter 58, from which the separated aqueous layer is returned to column 39 through line 59. A fraction which contains ethanol is discharged from the base of column 46 and through line 62. The water withdrawn from the base of column 39 is recycled through line 49 and heat-exchanger 25 or 18 for use as solvent water in column 19 and as wash water in scrubber 14, part of the water being discharged through line 51. The portion of the recycle water for use in scrubber 14 is pre-cooled in cooler 54. The upper section of column 19 may have 20 plates, the lower section being packed with ceramic Berl saddles equivalent to 17 plates; and column 39 may be of similar type. The purified methanol withdrawn from the system may be treated with a cation type ion exchange resin to remove trace impurities.
Patent GB-457766-A (GB)
Abstract: 457,766. Bakers' &c. ovens. BRAND, J. J. C., 28, Carlton Road, Putney, London. May 27, 1935, No. 15336. [Class 51 (ii)] In an oven for baking, roasting, and drying, the inner walls 2 of the lagged outer casing are made of a rigid heat-insulating material such as uralite, and the refractories 11, 16 forming the inner baking chambers are supported wholly from this wall by means of angle or channel irons. In the two-deck oven shown, the sole slabs 7 are carried on T-bars 8 extending between the end walls, and the rear and side wall slabs 16, 11 are supported in slides 17, 12 secured to the rear end wall and to the sole bearers respectively. The slabs 11 are of such height that slots 14, 15 are left to allow the heating-gases from burners 22 to pass into the baking chambers 4, and adjustable dampers or deflectors 18 are provided in the side flues 13 to control the proportion of gases passing to the two chambers. The gases from the lower chamber pass direct through a port 19 to a vertical flue 20 formed in the lagging of the outer casing, while those from the upper chamber pass to the flue through graduated openings 32 in the roof plate 27 and the port 31. The flue 20 extends the height of the casing so that two or more ovens may be superposed. A partition 26 is fitted between the two burners and baffles 24 are provided to cause air admitted through the openings 23 to pass over the burners. The baking-soles 6, 9 are constructed from rigid heat-insulating material encased in sheet iron.
Patent GB-1020459-A (GB)
Title: A fuel element for nuclear reactors
IPC: G21C3/06
Filed: 1962-12-07
Abstract: 1,020,459. Fuel elements. LICENTIA PATENT VERWALTUNGS - G.m.b.H. Dec. 7, 1962 [Dec. 8, 1961], No. 46279/62. Heading G6C. In a nuclear fuel element comprising inner and outer concentric tubes 1, 2, the fuel 3 is present in granular form and one or other of the tubes is provided with transverse folds 8 which serve to compensate for differences in the thermal expansion of the tubes. At each end of the element is a closure member 4 which rigidly connects the tubes 1, 2 together while a ceramic ring 5 provides heat insulation between the fuel 3 and the lower closure member. A comparatively thick-walled tube 6 which serves for the internal support of the outer tube 1 under high external pressure is provided with apertures for the passage of fission gases into a free space 7 during operation. The fuel 3 packed into the interspace between the tubes 1, 2 is densified by shaking and/or stamping, or by hammering or pressing the tubes.
Patent GB-943761-A (GB)
Title: Improvements in electron emissive tapes and method of making
IPC: H01J9/04
Filed: 1961-12-27
Abstract: 943,761. Thermionic cathodes. MACHLETT LABORATORIES Inc. Dec. 27, 1961 [Jan. 3, 1961], No. 46310/61. Drawings to Specification. Heading H1D. A flexible, self-supporting, electron-emissive film comprises a polymethacrylate binder which completely volatilizes when subjected to heat during normal electron tube processing. The film may be prepared by coating a sheet of paper or polyethylene with a mixture of 6% by weight of poly-n-butyl methacrylate, 90% emissive substance, and 4% plasticizer in a solvent, e.g. acetone, amylacetate or ethylacetate. The plasticizer may be sucroseacetate-isobutyrate, dibutyl-phthalate and diethyl-oxalate and the emissive substance 70% nickel powder, 29% emissive carbonates and 1 % zirconium hydride. The binder may be polymethyl methacrylate, polyethyl methacrylate, poly-n-propyl methacrylate, poly-isopropyi methacrylate, poly-iso-butyl methacrylate or poly-n-amyl methacrylate. After drying, the film may be removable from the carrier sheet either before or after application to a cathode base. The emissive film may be 40 microns thick with a density of 1.8 gms./cm.<SP>3</SP>, and may be sealed with a pressure of 10 kgms./ cm.<SP>3</SP>, to a nickel base which is cold or heated to 100‹ C. Alternatively, a bonding solvent, e.g. xylene, methyl-cellosolve-acetate or cyclohexanol, may be used.
Patent GB-1504998-A (GB)
Title: Torsional vibration damper
IPC: F16F15/16
Filed: 1975-11-10
Abstract: 1504998 Torsional vibration dampers WALLACE-MURRAY CORP 10 Nov 1975 [21 Jan 1975] 46343/75 Heading F2S A torsional vibration damper 10, Fig. 1, for damping torsional vibrations of the crank-shaft of an internal combustion engine, comprises a hub 14, 16 for attachment to the crank-shaft, a first inertia member 34 coupled by elastomeric elements 36, 38 to the hub, and a second inertia member 40 surrounded by a viscous liquid 42 providing a viscous coupling between the said first and second inertia members. The elastomeric elements 36, 38 are maintained in an axially-compressed state and may be adhesively bonded to adjacent surfaces of the inertia member 34 and hub 14, 16. In the alternative embodiment of damper 100 shown in Fig. 3, a hub 114 is connected by elastomeric elements 134, 136 to sections 118, 120 of a first inertia member. Second and third inertia members 128, 130 are located in a cavity containing viscous liquid 132. An annular bearing member 138 of polytetrafluoroethylene may be provided in the cavity.
Patent GB-1331986-A (GB)
Title: Preprocessing method and apparatus for pattern recognition
IPC: G06K9/68
Filed: 1970-09-30
Abstract: 1331986 Pattern recognition systems WESTINGHOUSE ELECTRIC CORP 30 Sept 1970 [17 Oct 1969] 46420/70 Heading G4R A process employed in the recognition of a pattern within a field of view employs a digital computer which extracts from the field information relating to certain points in the field. The information concerns parameters which are invariant in that they are unchanged whatever the orientation, scale, or position of the pattern in the field. The values of these parameters and the geometrical relationship between the points are determined for comparison with corressponding features of reference patterns in order to classify the pattern. The claims are directed to a method of conditioning the computer to carry out the process, and to a computer when so conditioned. The field may be a photograph, or a radar plot, for example, and may be scanned by an optical or infra-red scanner, for example, The points in the field are chosen according to preset criteria. For example, points located at the ends of lines, or at the intersections of lines may be selected. Colour gradients, colour intensity, or grey scale gradients, may also be used to define the points. In Fig. 3 two points A, B are illustrated, these being at the intersections of lines AA<SP>1</SP>, AA<SP>11</SP>, BB<SP>1</SP>, BB<SP>11</SP>, BB<SP>1111</SP> present in the field and forming part of the pattern to be recognized. Arbitrary reference axes are chosen and the angles of the various lines relative the line joining the points AB are determined. Thus for the configuration shown values corresponding to #1-#, #2-#, #3-(#+#), #4- (#+#) and #5-(#+#) are derived, as also is the length AB. The angles are invariant parameters. Similar relationships are determined for every pair of image points. The parameters are compared with corresponding parameters of patterns which have been stored during a preceding learning phase. Assuming that there is correspondence, within certain preset tolerances, with one or more reference patterns the distance (AB) between each pair of points and the orientation (#) are normalized with respect to the scale and orientation of the reference patterns. Signals are formed representing the degree of match between the normalized unknown and reference patterns and their relative scale and orientation. By comparison of these signals the reference pattern most closely representing the unknown pattern is identified.
Patent GB-1400316-A (GB)
Title: Method and arrangement for the hydraulic conveyance of dredged materials
IPC: B65G53/30
Filed: 1973-10-08
Abstract: 1400316 Dredgers VAN HATTUM EN BLANKEVOORT BV 8 Oct 1973 [9 Oct 1972] 46845/73 Heading E1F [Also in Divisions B8 and Fl] Extending between a water-borne dredger 11, that is so anchored as to be displaceable within a limited range, and a stationary point is a dredged material-conveying, floating pipeline that is arranged to be taken in or veered out from the dredger or the point on movement of the dredger relative to the point so as to create in the pipeline an axial tension that will prevent collapse of the pipeline but will not unduly the anchorage of the point or the dredger. Preferably a portion of the pipeline is wound around a reel that is biassed against the pipeline being pulled off of the reel. The reel may rotate about either a horizontal or a vertical axis. The means biassing the reel may be a cable 21 attached to the periphery of the reel to pass around a portion of said periphery to a winch 22. The reel may have a conical drum so that the axial tension in the cable is a variable related to the radial distance between the axis of the drum and the peripheral point at which the cable leaves the drum.