baber/WOPTO huggingface dataset:
Patent GB-303357-A (GB)
Title: Improvements in the projection and printing of films bearing picture records for usein colour photography or cinematography
IPC: G03B33/14
Filed: 1928-12-18
Abstract: 303,357. Soc. Francaise Ginechromatique ProcÚdÚs R. Berthon, (Assignees of Soc. Civile pour l'Etude de la Photographie et de la Cinematographie en Couleurs). Deu. 31, 1927, [Convention date]. Drawings to Specification. Three-colour systems.-In the reproduction by projection-printing of colour-record positive images formed by photographic reversal from negative images taken on linear lenticular films, the presence of coloured stripes in the coloured pictures projected from the copy after this has been developed and reversed is avoided by introducing between the objective and the sensitive lenticular film a diffraction system such as a screen of alternately opaque and transparent lines, and displacing the diffraction system parallel to itself along the optical axis of the projection system until the image of the network disappears in the plane of the sensitive film. The lines of the screen are arranged parallel to the lenticulations of the film. Specifications 10611/09, [Class 98 (ii). Photographic processes &c.], and 265,069 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) states also that the diffraction system may take the form of a quarter-wave blade, or a half-silvered blade. This subjectmatter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 274,848, [Class 98 (ii), Photographic processes &c.].
Patent GB-1428905-A (GB)
Title: Metallizing compositions
IPC: H05K1/09
Filed: 1974-08-27
Abstract: 1428905 Metallizing composition for dielectrics E I DU PONT DE NEMOURS & CO 27 Aug 1974 [28 Aug 1973] 37443/74 Heading C7D A metallizing composition for forming conductions on dielectrics comprises a mixture of a finely divided noble metal viz Pt, Pd, Au, Ag, Ru and Os, or Ni O as an adhesion improver dispersed in an inert liquid vehicle. The mixture preferably contains 0À1-10% Ni O, the particle size of the mixture is at least 90% #5 microns in diameter or the optimum particle surface area is >0À5m<SP>2</SP>/g. The mixture is dispersed in water or an organic liquid such as aliphatic alcohols and their esters, terpenes and solutions of resins to give 0À5-20 parts weight solid per part weight liquid. The dispersion is printed on green or fired ceramic substrate and sintered. An exemplified composition contains 18% Pd, 45% Ag, 16% glass powder, 1% Ni O or 20% liquid.
Patent GB-933421-A (GB)
Title: Improvements in or relating to trowels
IPC: E04F21/16
Filed: 1961-10-19
Abstract: 933,421. Trowels for tapered joints. J. C. HOVELAND. Oct. 19, 1961 [Feb. 13, 1961], No. 37472/61. Class 61. A trowel having a working surface 11 of V-section has a runner 28, 29 on each side of and parallel to the apex of the V and tapering towards the trailing edge 25. The trowel may be used for pressing tape 86, Fig. 5, and mastic 83 to join wall plaster boards 80, 81 at a corner, the runners 28, 29 confining the mastic and the trowel being moved in the direction indicated by the arrow 22. The trailing edge 25 is bevelled so as to be co-planer with the sliding faces 28 of the runners. The mastic is also confined by transverse flanges 26, and lateral wings 54, 55 excess mastic falling through holes 59. The angle of the blade is slightly larger than the angle of the corner so that the apex 19 of the blade is spaced from the corner. The trowel may be fitted with plates 62 one on each side of the apex 19 welded to the blade at 66 and outwardly inclined, the trailing edges of which press the tape 86 into the corner, mastic passing through holes 73. Auxiliary runners may be provided inside the runners 28 to bear on a short wall which does not extend as far as one or other of the runners 28. The trowel has a universally jointed handle. A trowel for a flat wall joint, Fig. 10 (not shown), is of shallow V-section and the working surface is on the inside of the V.
Patent GB-1124132-A (GB)
Title: New azo dyestuffs
Inventor: ANDREW HERBERT FRANCIS
IPC: C09B62/028
Filed: 1965-09-03
Abstract: The invention comprises compounds of the formula <FORM:1124132/C4-C5/1> where A is an aromatic radical, B is a benzene or naphthalene radical which may be substituted, X, Y and Z are groups capable of reacting with the hydroxy groups of cellulose with formation of a covalent bond between the dyestuff and the cellulose molecule, m, n and p are 1-6, q is 1 or 2 and the compounds contain at least two sulphonic acid groups.  Radicals which may be represented by X, Y and Z are a  b -unsaturated aliphatic acid, acids containing a labile halogen atom or a group which readily splits off to form an anion and more especially heterocyclic radicals containing 2 or 3 nitrogen atoms in the ring and a labile substituent on a carbon atom of the ring.  A may represent a benzene, naphthalene, diphenyl, diphenyloxide, diphenylamine, stilbene, azobenzene, phenylazonaphthalene, benzthiazole or naphthatriazole radical, which may be substituted.  The compounds are prepared by reacting a compound of the formula <FORM:1124132/C4-C5/2> <FORM:1124132/C4-C5/3> <FORM:1124132/C4-C5/4> with q + 2, 2 or 1, respectively, molecular proportions of a reactant suitable for replacing the hydrogen atom of an amine by a group capable of reacting with the hydroxyl groups of cellulose with formation of a covalent bond between the dyestuff and cellulose molecule.
Patent GB-1009702-A (GB)
Title: Beam probe system and apparatus
IPC: H01J35/02
Filed: 1961-10-20
Abstract: 1,009,702. Automatic electron beam control. ELION INSTRUMENTS Inc. Oct. 20, 1961 [July 10, 1961], No. 37779/61. Heading G3R. [Also in Division H1] In a circuit for automatically positioning an electron beam at the beginning of its scanning raster signals derived from strip electrodes 280, 282 at the edges of the raster area are fed, the circuit shown is for the horizontal deflection only, via a difference amplifier 286, to a power amplifier 288 which controls when the relay 310 is energized upon initiation if the scanning vaster the discharge or charging of the capacitor 292. When the condenser 292 is discharged the drive on the horizontal deflection plates 247 via the cathode followers 294, 296 deflects the beam to the left until the beam impinges on the strip 280 when with the condenser charged the drive is reversed. A balanced condition is determined by the setting of a reference voltage supplied to the difference amplifier 286. When the beam is positioned at the spaced intersection of the strips 280, 282 this positioning is detected in the coincidence circuit 308 which then operates to de-energize the relay 315. A clamping voltage is then developed on the capacitor 292 and at the same time switch 300 operated to connect power to the horizontal sawtooth generator 272. A sawtooth waveform is then super-imposed upon the deflection voltage established by capacitor 292 and resistor 304 and applied to the horizontal deflection plates 247 and similarly for the horizontal deflection plates 249. Specification 1,000,560 is referred to.
Patent GB-968135-A (GB)
Title: Slurrying acrylonitrile polymers
IPC: D01F6/18
Filed: 1962-10-05
Abstract: Low-viscosity slurries of fibre-forming acrylonitrile polymers are made by coating the polymers in solid form with from 2 to 25% by weight of polyethylene glycol, and mixing the coated polymer in a solvent therefor to form a slurry. Acrylonitrile polymers specified are the homopolymer, and copolymers with vinyl esters, e.g. vinyl acetate, acrylic and substituted acrylic acids, amides and esters, vinyl and vinylidene halides, styrene, vinyl naphthalene, N-vinyl imides, itaconic acid and esters, vinyl furan and carbazole, vinyl-substituted heterocyclic amines and methyl vinyl ketone, including the component copolymers. The polymer can also be a blend of two different acrylonitrile polymers. Polymer solvents specified are dimethyl formamide, dimethyl acetamide, dimethyl sulphoxide, nitromethane, butyrolactone and aqueous solutions of zinc chloride and sodium thiocyanate.  The coating of the acrylonitrile polymer is preferably carried out by adding an aqueous solution of polyethylene glycol to moist acrylonitrile polymer filter cake, which is then dried and ground. The polymer slurries are converted to spinning solutions.
Patent GB-1491784-A (GB)
Title: Separatory device for hydraulically separating materials
IPC: B03B5/62
Filed: 1975-09-15
Abstract: 1491784 Wet separating; pneumatic separating E L JACKSON 15 Sept 1975 37834/75 Headings B1D and B2H  Apparatus for use in the reclamation of used abrasive grit comprises a table 66 having a peripheral lip 70 projecting upwardly therefrom, a cone 68 positioned centrally on the table, a chute 86 having an open end adjacent the upwardly facing surface of the table inside the lip and extending over the lip and thence downwardly therefrom, and means 80 for rotating the table. In use, a detergent solution containing the grit and contaminant materials is discharged from a wash unit 48 onto the apex of the cone 68 and thus onto the rotating table 66. The detergent solution together with the light contaminant materials flows over the lip 70 of the table into a tank 82 and is discharged through a pipe 84. The grit particles sink through the detergent solution and accumulate on the surface of the table 66 near the outer peripheral edge thereof. From here they are scooped up by the chute 86, the movement into the chute being assisted by jets of water from a pipe 89. The grit passes along the chute to a second rotating table 94 to which water is supplied by an annular manifold 108 to remove any remaining detergent. Very small fines of grit are removed from the water which collects in a tank 105 and are recycled to the top of the table 94. Grit particles which accumulate on the table 94 are removed by a conveyor 110 and transported to a rotary furnace 126 heated by a blower burner assembly 154 to a temperature of about 1200‹F. In the furnace, any fine particles of glass which are present agglomerate to form relatively large particles which may be removed from the grit particles in a subsequent screening operation. Air is drawn through the furnace by a fan 148 and entrains any light ash particles or extremely fine grit particles, the latter being removed by a cyclone 144 and the former by a filter 146. Before the used grit is fed to the table 66, it is introduced into a rotary vibrating screening apparatus 28 located within a hood 20. The screening-apparatus 28 has two concentrically arranged screens 32 and 34, is rotated by a motor 46 and is vibrated by means of a yieldable, spring-loaded arm (38), Fig. 4 (not shown) which periodically strikes the vanes of a spider (40). Material too large to pass through the screen is collected in a hopper 44, any airborne fines are removed through a duct 22 to a cyclone 24 and are then fed to the table 66, and material passing through the screen is mixed with detergent in a wash unit 48 before passing to the table 66. Wet grit may be fed directly to the unit 48 through a pipe 14.
Patent GB-345206-A (GB)
Title: Improvements in vacuum cleaners
IPC: A47L9/22
Filed: 1929-12-10
Abstract: 345,206. Vacuum cleaners. ELEKTRISKA AKTIEBOLAGET VOLTA, 29, Kungsgatan, Stockholm. Dec. 10, 1929, No. 37838. Convention date, Dec. 10, 1928. [Class 8 (i).] In a vacuum cleaner of the type wherein the motor and fan form a unit enclosed by a casing, the unit is resiliently supported in a horizontal position. The fan is surrounded by a casing 18, formed with recesses 28 to contact with resilient buffers 21 and the motor casing 14 is adapted to house a spring 20 compressed against the cover 16. The outer end of the spring 20 is housed in a recess 25 of an insulating block. An airtight joint between the inlet and outlet sides of the fan is formed by the packing 29.
Patent GB-1511740-A (GB)
Title: Controlling pig iron refining
IPC: C21C5/30
Filed: 1975-11-24
Abstract: 1511740 Controlling oxygen steelmaking CENTRE DE RECHERCHES METALLURGIQUES-CENTRUM VOOR RESEARCH IN DE METALLURGIE 24 Nov 1975 37925/77 Divided out of 1511739 Heading C7D The process of refining iron in a converter by blowing with oxygen is controlled by monitoring the intensity of emitted sound having a frequency < 20 Hz and detecting the instant at which the intensity shows a sudden and marked decrease. A controlled further amount of oxygen is then injected to produce either a desired phosphorus content in the steel or iron oxide content in the slag, that amount of oxygen being obtained from predetermined relationships.
Patent GB-1319636-A (GB)
Title: Tobacco smoke filters and filter production
IPC: A24D3/08
Filed: 1970-08-06
Abstract: 1319636 Tobacco-smoke filters BRITISHAMERICAN TOBACCO CO Ltd 6 Aug 1970 [12 Aug 1969 1 May 1970] 38004/70 Heading A2C [Also in Divisions B5 and C3] A tobacco smoke filter comprises a plurality of porous members of a thermoplastic resin packed in abutting proximity with one another, each member having a surface area of 0.5-5.0 sq. m./gm., a mean pore diameter of 2-10Á and a porosity of 30-90%. The member may be made either by encasing within a thermoplastic resin, e.g. cellulose acetate, starch, swelling the starch to a diameter of 2-10Á, and leaching out the starch; a plasticizer may be included with the cellulose acetate which may be drawn through a roller to form a sheet which is then shredded to form filamented strands; or the member may be diatomaceous earth. The filter may comprise a tubular outer-wrap and an inner core of the above porous members, and may be used for cigarettes. Figs. 1 and 5 show a cigarette (10 or 40) provided with filter (12 or 42) having a mouthpiece (24 or 45), centre section (22) and tobacco end (20 or 43), the mouth and tobacco end 20 are formed of fibrous material, e.g. cellulose acetate tow, and sections 22 and 43 contain the above porous members as granules, 30, or filaments, 44.
Patent GB-979717-A (GB)
Title: Production of acetylene
Inventor: GUTOFF EDGAR BENJAMIN
IPC: B61D25/00
Filed: 1961-10-25
Abstract: <PICT:0979717/C1/1> Acetylene is produced by contacting particles of an alkali or alkaline earth metal oxide with carbon in a fluidized bed which is heated e.g. to 1500 DEG  C. by radiation of heat produced from combustion of the fluidizing gases in the enclosed zone above the reactor bed by means of air added to said enclosed zone, removing the reacted mass from the upper section of the bed, cooling and reacting with water to produce acetylene.  The heat required for maintaining the combustion in the zone above the bed may be supplied by heat generated externally and conducted into the zone through the wall of the reactor.  The molar ratio of carbon to metal oxide may be between 3 and 10, and the fluidizing gas may be a non-oxidizing nitrogen-face gas, e.g. methane rich natural gas, naphtha, ethane or propane.  Metals mentioned are barium, calcium, strontium and sodium. In the Figure the oxide reacts in fluidized bed 2 with carbon from cracked hydrocarbons fed via inlet 5 and blower 6 into the windbox 3. The bed is kept above 135 DEG  C.  In space 4 the H2 and CO are burned with preheated air at 375 DEG  C. entering via inlet 7.  The temperature is controlled by passing some combustion air to barium hydroxide drier 10 via conduit 19 from blower 9.  The carbide leaves reactor 1 via overflow 11 and is cooled to 150 DEG  C., in cooler 12, then conveyed to acetylene generator 13 via conduit 33.  Dry hydroxide leaves via 16 and is blown to drier 10 where it is dehydrated. The oxide is separated in cylones 21 and enters reactor 1 via conduit 22.  The flue gases are led to waste heat boiler 24 where they produce high pressure steam and are passed on to air heater 8. The gases then pass to scrubber 28 and are then exhausted.  The reactor may be lined with 97% magnesia brick. Nitrogen and sulphur are preferably excluded from the bed.
Patent GB-1270049-A (GB)
Title: New pharmaceutical product
Inventor: SYLVEN BENGT
Filed: 1970-08-07
Abstract: 1,270,049. Cytostatic compositions. B. SYLVEN. 7 Aug., 1970 [18 Aug., 1969], No. 38143/70. Heading A5B. A cytostatic composition comprises (a) a pharmaceutically acceptable carrier and (b) desoxycytidine, desoxythymidine or a compound which on administration to a patient will yield desoxycytidine or desoxythymidine. The composition may be in the form of an injectable saline solution. It may include another cytostatic agent.
Patent GB-1400422-A (GB)
Title: Data visual display apparatus
IPC: G09G1/28
Filed: 1971-09-16
Abstract: 1400422 Cathode-ray tube displays REDIFON Ltd 15 Aug 1972 [16 Aug 1971] 38357/71 Heading H4T An Alpha-Numeric display system employs a colour cathode-ray tube of the beam penetration type 2, (Figs. 2, 3 and 4) on which character data is produced by intensification of the beam at appropriate positions in a 7Î5 dot matrix as shown at 16 (Fig. 2) in respect of the character "A". The beam deflection between the matrix dots is effected under control of counters 17, 21 and D/A converters 18, 22 via gain setting amplifiers 19, 23, deflection amplifiers 20, 24 and deflection coils 10, 11, the gains of amplifiers 19, 23 being controlled by colour selection signals at terminal 28 such that the magnitubes through which the beam is deflected remains constant when the beam energy (EHT voltage) is varied to produce displays in different colours. Control of the amplitude and duration of the beam intensification pulses from amplifier 26 (Fig. 2) by colour selection signals is also effected to compensate for the different sensitivities and persistence of the (two) screen phosphors, Red and Green, which allows four colours Red, Orange, Yellow and Green to be produced. The display is produced on 32 lines each of 64 character position (Fig. 3) using circuitry similar to that employed for the matrix production but with separate deflection coils 12, 13 and with the addition of facilities for horizontal and vertical tabulation. Fig. 4 shows the general arrangement of the EHT voltage switching system for producing colour changes. The invention is described in association with a ground-based aircraft flight simulator (Fig. 1A, not shown) the flow of data within which is illustrated by Fig. 6 (not shown). Colour is employed to indicate the status of specific items of data; e.g. Yellow is employed for unchanging information such as titles and headings, Green is employed to display parameters which are normal and Red is employed to display parameters which are abnormal. Orange is employed to display a line-marker cursor.
Patent GB-891389-A (GB)
Title: Improvements in or relating to seats
Inventor: WALDRON KEVIN CYRIL
IPC: A47C5/12
Filed: 1959-11-12
Abstract: 891,389. Laminates. AUSTIN MOTOR CO. Ltd. Nov. 24, 1960 [Nov. 12, 1959], No. 38358/59. Class 140. [Also in Group XIV] A seat frame of the type having a seat pan which incorporates an integrally formed backrest comprises a layer of rigid plastic foam sandwiched between and bonded to, two sheets of a high-tensile material capable of withstanding a tensile stress of the order of 5000 lbs. per square inch. Such material may consist of metal, resin-bonded glass fibres, other natural or synthetic fibres, plastic film or injection moulded plastics. The seat frame 12 (Fig. 2) is formed by lining a pair of dies 1, 4 with sheets of hightensile material, clamping the dies so as to leave a mould cavity 11 between their linings, introducing into the cavity 11 through a hole 10 a polyurethane rigid foam-forming mixture in an amount such that the foam produced completely fills the mould cavity 11, and allowing the foam to adhere to the sheets and to harden.
Patent GB-1348010-A (GB)
Title: Slide fastener coil
IPC: A44B19/40
Filed: 1971-08-16
Abstract: 1348010 Slide fastener elements SCOVILL MFG CO 16 Aug 1971 [21 Aug 1970] 38408/71 Heading E2S A coil 18 for a slide fastener 10 of the "invisible" type (see Fig. 1) has a series of identical convolutions 22 of plastics filament each having an enlarged connecting head 30. Each of the convolutions has an indentation 32 to prevent slippage of stitching 20 and a protruding part or knob 36 which engages with the tape edge to prevent slippage of the fastener elements.
Patent GB-1103904-A (GB)
Title: Power take off and coupling arrangements for tractors
Inventor: SCHELENZ ALFRED
IPC: B60K17/28
Filed: 1965-09-08
Abstract: 1,103,904. Power take-off arrangements. BRANDENBURGER TRAKTORENWERKE VEB. 8 Sept., 1965, No. 38474/65. Heading B7H. A power take-off and coupling arrangement comprises a p.t.o. shaft rotatable at different speeds through meshing pinions 5, 6 and slidable gears 1, 2 and a control lever 4 which both presets the p.t.o. speed and controls the position of a movable abutment at the end of the p.t.o. shaft between a position in which a machine element may pass the abutment and be coupled to the p.t.o. shaft and a position in which the machine element may neither pass the abutment nor engage the p.t.o. shaft. As shown, the lever 4 is connected by an hydraulic link or mechanical linkage 17 to two abutments 18, 19 at two p.t.o. shafts 7 and 12 which are rotated together at either a high speed or a low speed. In the high speed position of the lever 4 the abutment assumes the position 23, Fig. 2, in which a coupling element 20 of a low speed machine engages the abutment preventing coupling whereas the reduced diameter end portion (22) of a coupling element (21) (Fig. 3, not shown) of a high speed machine may pass the abutment and be coupled to the p.t.o. shaft. In the low speed position of the lever the abutment is moved both radially and axially of the p.t.o. shaft to a position 23<SP>1</SP> in which the element 20 may pass below and engage the p.t.o. shaft whereas a shoulder (22<SP>1</SP>) on the element (21) engages the abutment thereby preventing coupling to the p.t.o. shaft.
Patent GB-1006638-A (GB)
Title: Self-propelled excavator
IPC: E02F9/10
Filed: 1963-09-30
Abstract: 1,006,638. Excavator. C. J. DAVIS. Sept. 30, 1963 [Dec. 24, 1962], No. 38481/63. Heading E1F. An excavator comprises a mobile chassis 11 supporting a body 15 tiltable about a horizontal axis 22 relative to the chassis (Fig. 5) and swingable about a vertical axis 35 (Fig. 3), the body having a boom 18 mounted at one end and independently swingable about a vertical axis 70, spaced from axis 35. This arrangement permits digging trenches adjacent to walls, as shown, body 15 being set in one position while boom 18 is operated to perform the digging operation. Fig. 2 shows how an intermediate frame 16 is mounted on the chassis 11 by pivot pins and bearings 22, 29 for lateral pivoting by hydraulic double-acting cylinders 32, 33. Body 15 is mounted on frame 16, rollers 36 and 58 engaging channels 53, 54, 55 and 39 respectively to stabilise, for rotation about pivot 35 by cylinders 59. Boom 18, carrying bucket or shovel 62 and various operating cylinders (Fig. 1, not shown) is mounted for vertical swinging on bracket 75, which is rotated about a vertical pin 70 by a rotary vane hydraulic motor. Body 15 houses a power unit which drives a hydraulic pump to power the various cylinders and a hydraulic motor 13 driving the tracks 12 independently. Each pair of cylinders 32, 33 and 59 is connected to a valve which simultaneously extends one and contracts the other cylinder of a pair.