baber/WOPTO huggingface dataset:
Patent GB-300257-A (GB)
Title: Improved method of and means for cooling wholly enclosed electric machines
IPC: H02K9/16
Filed: 1928-08-21
Abstract: 300,257. Ateliers de Constructions Electriques de Charleroi. Nov. 10, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Dynamos and motors, cooling; armatures and field magnets, cooling.-The cooling fluid in an enclosed machine passes in a zone bounded by the heated mass of the stator on one side, and the heated air coming from the interior of the machine on the other. One form is shown in Figs. 6 and 7 which are respectively sectioned on the lines A - - B, C - - D of Fig. 9, this Figure being a section on E - - F, Fig. 6. The stator laminae have toothed outer surfaces for radiation and are supported by projections j<2> bearing on some of the ducts o on the casing through which the heated internal air of the machine is circulated by a fan n, as shown by the arrows in Fig. 6. The entrance of the air into the ducts o is through openings m' in the end plates m which clamp the laminae together. The external cooling air, as shown in Fig. 7, is drawn by a fan q through an opening y and passes through the spaces p<1>. p between the stator iron and the cold air ducts o to the outlet p<3>. Thus, a part of the cold air ducts is defined by the solid por. tions of the clamping rings m and a part by the stator iron. The stator iron instead of being longitudinally ribbed as shown may be smooth, for example with an external periphery of square form with it's corners rounded to engage the ducts o in the casing. Figs. 10 and 11 show an alternative form, Fig. 11 being a section on the line I - - J, Fig. 12, and Fig. 12 a section on the line K - - L. In this form, the internal air is circulated by a fan, as shown in Fig. 10, through a continuous annular space U between an outer housing t and a ring R which supports the ribbed stator laminae j by means of ribs r<1>. These ribs are widened out at their ends and have intervening slots which register with openings s<1> in the clamping plates s of similar nature to the plates m, Fig. 6. The external air, as in the previous case, is drawn by a fan q<1> from an end opening y<1> and passes through passages p<1>, constituted by the ribs on the stator iron and the ribbed inner surface of the plate R, to the outlet p<1>3.
Patent GB-824914-A (GB)
Title: Process of reducing the quantity of thiophenes in aromatic hydrocarbons
IPC: B01J19/18
Filed: 1958-07-25
Abstract: Aromatic hydrocarbons are purified by countercurrent treatment with sulphuric acid to remove thiophenes in a vertical column filled with packing bodies in which the liquids are pulsated.  The acid used is preferably of at least 95% concentration and may be used to purify benzene, toluene, xylene and coal tar fractions. The acid is fed to the top of the column 18 and the hydrocarbon to the bottom by line 7a or 10.  The hydrocarbon is preferably in a continuous, and the acid in a discontinuous, phase.  The column is packed with filler bodies such that the free space amounts to 50-96% of the space occupied by the bodies.  The bodies may be of glazed porcelain for at least the lower third of <PICT:0824914/III/1> the column, glazed or unglazed bodies being used above; alternatively they may be made of metal or metal alloy not attacked by sulphuric acid.  If arranged in several layers, redistributers 2 are placed between the layers.  Spent sulphuric acid is removed from the bottom of the column by line 14 and may be used to prepurify the hydrocarbon in mixing and separating vessels 8 and 9.  Purified hydrocarbon is removed by line 12. Side streams of less pure products may be removed by line 20 and/or 21. Pulses, e.g. 100-300 per minute, are imparted by means of a disc reciprocating in a cylinder 4 filled with benzene and connected to a benzene reservoir 6.  The pulsation stroke is preferably 6 mm. as calculated for the empty column in a 7-metre column.  Specification 404,005 is referred to.ALSO:<PICT:0824914/IV (b)/1> Aromatic hydrocarbons are purified by countercurrent treatment with sulphuric acid to remove thiophenes in a vertical column filled with packing bodies in which the liquids are pulsated.  The acid used is preferably of at least 95% concentration and may be used to purify benzene, toluene, xylene and coal tar fractions. The acid is fed to the top of the column 18 and the hydrocarbon to the bottom by line 7a or 10.  The hydrocarbon is preferably in a continuous and the acid in a discontinuous phase.  The column is packed with filler bodies such that the free space amounts to 50-96% of the space occupied by the bodies.  The bodies may be of glazed porcelain for at least the lower third of the column, glazed or unglazed bodies being used above; alternatively they may be made of metal or metal alloy not attacked by sulphuric acid. If arranged in several layers, redistributors 2 are placed between the layers.  Spent sulphuric acid is removed from the bottom of the column by line 14 and may be used to prepurify the hydrocarbon in mixing and separating vessels 8 and 9.  Purified hydrocarbon is removed by line 12.  Side streams of less pure products may be removed by line 20 and/or 21.  Pulses, e.g. 100-300 per minute, are imparted by means of a disc reciprocating in a cylinder 4 filled with benzene and connected to a benzene reservoir 6.  The pulsation stroke is preferably 6 mm. as calculated for the empty column in a 7-metre column. Specification 404,005, [Group III], is referred to.
Patent GB-156868-A (GB)
Title: Improvements in and relating to alternating current dynamo electric machines
IPC: H02P9/12
Filed: 1919-10-02
Abstract: 156,868. British Thomson - -Houston Co., Ltd., and Taylor, H. W. Oct. 2, 1919. Dynamos, regulating; auxiliary protective or safety devices.-To protect an alternating-current generator in the event of a fault developing on the line or in the generator, its field is suppressed by causing the fault to operate a switch so as to short-circuit or reverse the series winding of the exciter or to insert a series demagnetizing-coil in the exciter field system if a series coil is not used in the normal operation of the exciter. A loading- resistance may be switched in during the transition to avoid breaking the field, as described in Specification 129,068, and the arrangement may be employed in combination with the means for changing the exciter shunt windings described in that Specification. The exciter coil may be shortcircuited by a simple switch which is caused to close automatically, for instance by a relay operated by the generator protective gear, when a fault occurs, or as shown in Fig. 4, a switch e may normally short-circuit a series coil a on the exciter, this coil being so wound that when the switch is opened by occurence of a fault it demagnetizes the exciter field. In the form shown in Fig. 2, the switch d is normally open but is closed on the occurence of a fault so as to connect the loading resistances c, c' in parallel with the series coil a and reverse the series current. An alternative arrangement is also described in which the coils c, c' are out of circuit during normal operation and are switched in parallel with the series coil when its current is reversed by a switch similar to that shown in Fig. 2.
Patent GB-212493-A (GB)
Title: Improvements in printer's chase
IPC: B41B1/28
Filed: 1923-09-28
Abstract: 212,493. Evans, A. C. Sept. 28, 1923. Chases.-Chases are provided with scales S along the inner edges to facilitate the adjustment of the form within the chase, and the determination of the sizes of furniture required. The scales indicate inches and picas, and the graduations increase in denomination from the corners of the chase to the middle point L of each side.
Patent GB-1263779-A (GB)
Title: Signal transmitting and receiving apparatus
Inventor: AINSCOW FRANK
IPC: G11C7/00
Filed: 1969-05-13
Abstract: 1,263,779. Phase comparators; magnetic storage apparatus. INTERNATIONAL BUSINESS MACHINES CORP. 13 May, 1969, No. 24317/69. Headings H3A and H3B. A complex signal, e.g. from a magnetic store, having a component which is in phase or in antiphase with a reference signal of the same frequency, and components at other frequencies is fed to a phase detector which samples the complex signal during alternate half-cycles of the reference signal, the duration of the sample period being less than one half-cycle of the reference signal. Antiphase input signals are applied at 11, 12 and gating pulses phase displaced by 180 degrees, Fig. 4b, 4c (not shown), are applied at 13, 14. If the phase is such that the input at 11 is at its positive peak when the gate signal arrives at 13 and the input at 12 is at its positive peak when the gate signal arrives at 14 then T 5 , T 8  conduct and capacitor C charges on its right-hand plate. If the opposite condition occurs, capacitor C charges on its left-hand plate. In order to read out the state of charge of capacitor C, a read-out pulse is applied to 15, and an output appears at 16, 17 having a polarity dependent on that of the charge on C. ' Even subharmonics of the input signal produce equal and opposite charges on capacitor C during each gating period, and thus cancel out, so that their presence has no effect on the operation of the circuit. The two phases of the signal represent logical "O" and "I" states of a thin film magnetic store and superimposed on the signal is a further signal at half the frequency due to capacitive noise signals, and possible noise signals.
Patent GB-302620-A (GB)
Title: Improvements in the joint manufacture and production of valuable liquid and other hydrocarbons and derivatives thereof and ammonia
IPC: C01B3/02
Filed: 1927-09-17
Abstract: 302,620. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Sept. 17, 1927. Ammonia, catalytic production of from nitrogen and hydrogen.-The waste gases resulting from the destructive hydrogenation of carbonaceous materials are used for the synthesis of ammonia. after their hydrocarbon content has been converted into hydrogen in any suitable manner. In an example, a waste gas containing about 60 per cent of hydrogen, 12 per cent of methane, and 26 per cent of nitrogen is freed from sulphur compounds and passed, after admixture of air and steam, over a nickel catalyst. The product is mixed with a proportion of water-gas and the carbon monoxide content is catalytically converted into dioxide and removed. The product contains 75.1 per cent of hydrogen and 24.5 per cent of nitrogen and after a small addition of nitrogen is used for ammonia synthesis.
Patent GB-1375128-A (GB)
IPC: D04H1/70
Filed: 1973-05-23
Abstract: 1375128 Laminated particle and fibre boards BEROL CORP 23 May 1973 [2 June 1972] 24541/73 Heading B5N [Also in Divisions D1 and B6] In a 3 layer laminated particle board the outer layers are the consolidated boards comprising electrostatically aligned elongate particles described below. The inner layer may be a similar board, preferably aligned in a different direction to the surface layers. Alternatively, the particles of the inner layer may be in random orientation. The consolidated board comprising unidirectionally aligned elongate particles is formed by dropping the particles through an electric field of uniform strength orientated horizontally in one direction so that a torque exerted upon the particles aligns them in the direction of the electric field, collecting said particles upon a horizontal surface to form a mat and pressing the mat to produce a board. The particles may be fibres, whiskers, flakes or shavings of wood, bark, straw, grass, bagasse, natural or synthetic organic or inorganic materials or mixtures thereof. They should have some electrical conductivity and/or have a conductive coating of moisture and/or binder. The moisture content is 9 to 15% by weight of the particles and may be achieved by a room humidity of 65% at 70 F. The binder is preferably 5 to 15% by weight in the form of a dry powder of B stage phenol formaldehyde resin. The particles may be fluffed by falling between spiked rollers (Figs. 3, 4, not shown), blended with resin and refluffed. In a batch process opposite walls 53, 54 of a box 49 of rectangular horizontal cross-section comprise layers 56, 57 of aluminium foil sandwiched between layers of acrylic plastic. An alternating potential of 1500 to 3750 volts per inch is applied to the electrodes 56, 57. The base of the box comprises a perforated plate 46 supporting a non-conducting screen 48, e.g. of fibreglass reinforced plastic. Vacuum is applied to box 41, thereby causing a downdraft of 50-100 ft./min. in box 49. A framework 61 on box 49 supports an array of parallel nylon monofilament strings 73 tuned to 500 Hertz. Two endless chains 77 mounted at opposite ends of the array of strings travel in opposite directions and carry picks 76 which engage strings 77 and maintain them in random vibration. The elongated particles are dropped on to the array of vibrating strings to ensure that the particles fall individually through box 49. When mat 89 has been formed it is compressed by a plunger, the vacuum released, box 49 lifted off and the mat withdrawn on screen 48 to a heated hydraulic press. In the embodiment of Fig. 5, the mat is produced by a continuous process.
Patent GB-185759-A (GB)
Title: Jet conveyor construction
IPC: F23J1/00
Filed: 1922-09-11
Abstract: 185,759. Detrick Co., M. H., (Assignees of Ellman, L.). Sept. 10, 1921, [Convention date]. Pneumatic conveyers and elevators.-An elbow 1 for a pneumatic conveyer is provided with an aperture A through which identical semicylindrical liners 6, 6<1> can be inserted and removed. The aperture is closed by a plate 2 secured by bolts 5. The liners are held against longitudinal shifting by the engagement of lugs 6<a> formed thereon with grooves 9 formed in the elbow. Removal of the liners is facilitated by providing each liner with a socket 17 which can be engaged by a tool. A detachable extension 12 similarly provided with removable liners may be placed between the elbow and the conduit C'.
Patent GB-315131-A (GB)
Title: Improvements in and relating to containers of fibre board, cardboard and like materials
IPC: B65D5/32
Filed: 1928-08-27
Abstract: 315,131. Stevenson, A. H. Aug. 27, 1928. Cases made from special blanks.- A collapsable case or container is made from a series of blanks each cut and scored so that the resulting corner flaps can be bent inwardly about a rectangle, certain of the flaps being used to secure the blanks to gether and the others forming the end closing flaps or sides of the case. As shown, four blanks are used to make a rectangular case, the blanks being rectangular and scored along the lines 8 to form the corner flaps a - - d and rectangular sides 4 - - 7. The flaps b, d are stapled to the adjacent blanks to form the collapsable body of the case, and the flaps a, c when bent inwards form the ends of the case; the flaps a, c may be secured together by adhesive strips applied over the joints or they may be stuck to a loose internal cover sheet. The blanks are preferably of corrugated fibre board scored obliquely to the lines of corrugations.
Patent GB-844822-A (GB)
Title: Dyeing process
Filed: 1958-08-01
Abstract: Articles such as fibres or foils of polymers or copolymers of acrylonitrile or vinylidene cyanide are dyed from a dyebath containing a cationic dyestuff and a quaternary ammonium compound containing a benzyl radical, which may be substituted by halogen, and also an alkyl radical with at least 8 carbon atoms.  The quaternary compounds may be employed in the form of their addition products with urea or with urea derivatives such as monoacetyl urea.  Examples are given in which the quaternary compounds are dimethyl-cetyl-benzyl-ammonium chloride, the reaction product of dimethyl palm kernel fatty amine with benzyl chloride and their addition products with urea and monoacetyl urea, the dyebath also containing sodium acetate and acetic acid.
Patent GB-1170119-A (GB)
Title: Process of the Erasure of Recorded Signal on Magnetic Tape.
IPC: H04N5/782
Filed: 1967-05-31
Abstract: 1,170,119. Erasing magnetic tape; video recording. AKAI ELECTRIC CO. Ltd. 31 May, 1967 [7 June, 1966], No. 24981/67. Heading G5R. In the erasure of magnetically-recorded broad-frequency-band signal information (e.g. television signals) on magnetic tape, using a stationary erase head in sliding contact with it, the frequency of the erasing current is selected from a frequency band ranging from a lowest value, defined below, to a highest value of about 900 kilocycles per second. The lowest value depends on the tape speed, and is such that the ratio of tape speed in metres/sec. to the desired frequency in cycles/sec, is about 3 x 10<SP>-5</SP>. Preferably the upper limit of the frequency is from one-fifth to one-third of the bias current frequency. A single amplifier may be used for erase and bias, the output frequency being appropriately multiplied or divided for one of these purposes.
Patent GB-795360-A (GB)
Title: Improvements in and relating to variable-capacity rotary pumps
Inventor: SHOOSMITH GUY TAITE
IPC: F04C14/02
Filed: 1955-08-31
Abstract: 795,360. Rotary pumps. PLENTY & SON, Ltd. Aug. 29, 1956 [Aug. 31, 1955], No. 24992/55. Class 110 (2). In an installation comprising at least two variable-capacity pumps 10, 12 arranged in series and adapted to deliver liquid at a constant pressure, the control members 20 of the pumps are collectively controlled by a single hydraulic accumulator 30 through differential means 24, 38 subjected on one side to the pressure in the accumulator and on the other side to the output pressure of their associated pump. The member 38 constitutes a differential piston having its intermediate chamber fed with lubricant through a conduit 46. Specification 689,313 is referred to.
Patent GB-322472-A (GB)
Title: Improved system of signalling in fog
IPC: B61L5/20
Filed: 1928-08-31
Abstract: 322,472. Schilovsky, P. Aug. 31, 1928. Look-out reflectors.-Railway tracks or roads are supplied with lines of small lamps or luminous tubes controlled from a central station and placed so as to create a continuous signal for the driver. The lamps may consist of miniature electric bulbs, coloured and arranged in groups of 50 to 80 in line, or of Neon tubes, or of petrol lamps with coloured screens moved pneumatically. The lamps are either secured to the sleepers of railway tracks or laid in pavements and protected by strong glass. The lamps may be controlled pneumatically or by separate levers or by contacts on existing signal arms. An airtight periscope tube may be fitted to the driver's cabin, with one end of the tube directed towards and near the line of lamps. Reference has been directed by the Comptroller to Specification 2612/00, [Class 105, Railway signals &c.].
Patent GB-1434306-A (GB)
Title: Process for the production of finely divided metals and/or metal oxides
IPC: C01F7/30
Filed: 1973-05-25
Abstract: 1434306 Finely divided metal oxides SHELL INTERNATIONAL RESEARCH MAATSCHAPPIT BV 25 May 1973 [30 May 1972] 25122/73 Heading C1A Finely divided metals of Groups IIIB-VA and/or oxides thereof are made by thermally decomposing in one or more steps a metal containing polymeric material, prepared by contacting a polymeric carboxylic acid with a non-aqueous liquid medium containing ions of said metal(s) as in Specification 1,395,005, to produce a carbonaceous char comprising particles of the metal(s) and/or oxide(s) and oxidizing the char to remove carbon. Oxides of Cr, Fe, Zn, Al, Ti, Cu, Ni and Co and mixed oxides of Cu, Ni and Co may be made. The preferred carboxylic acids are homo- or co-polymers of hydrocarbon carboxylic acid of up to 10 C atoms possessing at least one -COOH group and at least one ethylenic linkage, e.g. acrylic acid or C 1-3  alkyl derivatives thereof. The thermal decomposition and C removal may be performed simultaneously by heating the starting material in O 2  rich gas. The examples relate to preparation of (I-IV) α-Al 2 O 3  and (V) mixture of CuO and α-Al 2 O 3 .
Patent GB-921400-A (GB)
Title: Improvements in and relating to airstrips
Inventor: OESTRICH HERMANN
IPC: E01C9/00
Filed: 1961-07-12
Abstract: 921,400. Wire fabrics. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. July 12, 1961 [July 29, 1960], No. 25217/61. Class 74 (2). [Also in Groups X and XXXIII] A transportable air strip, particularly for vertical takeoff jet aircraft comprises superposed layers A, B, C, of coils of metal wire, the turns of each coil in a layer being engaged with the turns of adjacent coils in the same layer. The axes of the coils in one layer are preferably perpendicular to those of the coils in adjacent layers when the airstrip is laid. On unstable ground it is supported on sheet metal plates E with fluid-tight expansion joints F between them to prevent earth &c. being thrown up by the vertical jets. The hightemperature gases emerging from the propulsion nozzle of a vertical-take-off aircraft are discharged laterally through the rudimentary ducts defined by the coils.
Patent GB-823143-A (GB)
Title: Improvements relating to fish dressing machines
Inventor: COLDBECK SIDNEY
IPC: A22C25/00
Filed: 1956-08-20
Abstract: 823,143. Fish heading. FISADCO Ltd. Aug. 19, 1957 [Aug. 20, 1956], No. 25337/56. Class 28 (2). A fish placed by hand on each of the flanged support plates 3 of a rotary table 2 is beheaded by a rotary knife 5, the support plate 3 being rocked about a vertical axis so as to give a curved cut, behind the gills and convex towards the nose of the fish. The support plate 3 is rocked by a cam 15 operating a cam roller 14 on the end of a cranked bracket 12 on the spindle 10 of the plate 3. The beheaded fish is moved in towards the centre of the table 2 by a fluted tapered roller 6 until the thinner tail part ceases to engage the roller, whereby the fish is correctly positioned to be engaged by the rail clamp 7 on an adjacent rotating drum 16 which carries away the beheaded fish to further dressing tools. Specification 823,144 is referred to.
Patent GB-327370-A (GB)
Title: Improvements in riveting machines
IPC: B21J15/26
Filed: 1929-08-20
Abstract: 327,370. Elsner, H. Aug. 20, 1929. Riveting. - In a riveting- machine the upper tool 6 carries a spring - pressed sleeve 7 and the lower tool 10 carries a spring-urged sleeve 12 with pivoted fingers 14. On the upstroke of the tool 6 the fingers are opened to receive a rivet R by a wedge on a reciprocated rivet shoot and on the downstroke the sleeve 7 descends in advance of the tool to depress the sleeve 12 causing projections 11 on the lower tool to open the fingers to release the rivet.
Patent GB-1182614-A (GB)
Title: Electrolytic Formation of Films of Fe2O3
IPC: H01M4/46
Filed: 1967-06-01
Abstract: 1,182,614. Electrolytically producing a ferric oxide film. CANADIAN PATENTS & DEVELOPMENT Ltd. June 1, 1967 [June 20, 1966], No. 25367/67. Heading C7B. A fine-grained, compact ferric oxide film is electrolytically produced on an anode immersed in a bath containing ferrous iron in solution, the anode potential being controlled so that the potential difference between the anode and a calomel reference electrode is maintained in the range of -200 to +800 millivolts. For example, the ferrous iron may be in a deaerated borate buffer solution of pH 8 in which case the films contain some borate. The films, e. g. 10 to 10, 000 A thick, may be deposited on any conductive material, e.g. Fe, Pt, Zn or Ag, or on non-conductors coated, e.g. by evaporation or sputtering, with conducting material such as Fe or other metal. Such non-conductors may be wood, paper, cloth or polymeric material, e. g. plastic tape. The films may be used to enhance the protection given by protective oxide films on iron, to form coloured films on iron or other metals by controlling the thickness to give various interference colours and to form thin magnetic or semi-conductor films. Transparent coatings may be applied over a coloured film layer. The properties of the oxide can be modified by further anodic oxidation in the absence of Fe<SP>++</SP>. The oxide can be heat treated to form Fe 3 O 4  or y -Fe 2 O 3 .