baber/WOPTO huggingface dataset:
Patent GB-1210415-A (GB)
Title: Blinking cursor for crt display
IPC: G09G5/08
Filed: 1968-08-12
Abstract: 1,210,415. Cathode - ray tube displays. SPERRY RAND CORP. 12 Aug., 1968 [24 Aug., 1967], No. 38475/68. Addition to 1,108,401. Heading H4T. The "cursor" used to indicate the point of entry of a character in the character generation and display system of parent Specification is "painted" alternatively with a character, if one should occupy the position of the cursor, so that the "blinking" effect facilitates visual location of the latter. Referring to Fig. 1, the position the cursor is to occupy on the tube screen is set up in X register 4 and compared in comparator 10 with the instantaneous position of the beam as derived from M register 2, registers X and M operating as described in the main patent. When the two positions correspond an output is produced by comparator 12 and this is employed to control the alternate painting of the cursor and a character if one is to be reproduced at such position. As shown in Fig. 2, the output of the comparator 10 is supplied via two bi-stable toggles 46, 48 to a further bi-stable toggle 20 so that four output pulses from the comparator are required before circuit 20 can be toggled. When no character is to be painted at the cursor location zero signal on line 34 supplies an inhibiting input signal to AND gate 16 and, via inverter 36, an enabling signal to AND gate 16. The latter also receives the output from the comparator on line 12 and the output from the "1" side of toggle 20 on line 32 and thus supplies an output on line 44 which is effective via OR gate 26 to cause the cursor generator 30 (similar to Fig. 8 of the main patent) to "paint" the cursor. When, after four output pulses from the comparator, toggle 20 reverses and supplies an output from the "0" side on line 22, AND gate 14, enabled by the latter output and by the output on line 12, supplies an output to the cursor generator via OR gate 26 so that the cursor continues to be painted whilst there is no character to be reproduced at this position. When a character is to be reproduced, a signal on line 34 enables AND gate 18 while in response to the comparator output on line 12 and the output from toggle 20 on line 32 supplies an output on line 40 to the character generator 42 which operates to paint the character. The signal on line 34, however, operates via inverter 36 to inhibit AND gate 16 so that as toggle 20 reverses at every fourth output from the comparator AND gates 14 and 18 are alternately enabled and thus the cursor and the character are "painted" alternately so that with a scan repetition frequency of 60 c.h.s. the flicker rate of the character and cursor "painting" is 7¢ c.p.s. which is readily discernible by the eye.
Patent GB-1421238-A (GB)
Title: Dental instruments
IPC: A61C1/14
Filed: 1973-08-15
Abstract: 1421238 Dental chucks MORITA SEISAKUSHO KK 15 Aug 1973 [31 Aug 1972] 38579/73 Heading A5R A dental instrument comprises a rotor with an axial bore housing a tubular body 3 of elastomeric material circular cross section with metal tubular fixing members 6, 7 located in axial alignment with and at opposite ends of the body 3, the outer diameter of the body 3 and members 6, 7 being such as to provide interference fits in the rotor, the bore of the elastomeric body being of a size to produce an interference fit with the shank of a dental tool and the fixing members 6, 7 being counterbored at their ends adjacent the tubular body with a diameter larger than the internal diameter of the tubular body 3.
Patent GB-993003-A (GB)
Title: Hot filling of plastic containers
IPC: B65B63/08
Filed: 1963-10-01
Abstract: The interior of a plastic container is sterilized by introducing into it a liquid or gaseous sterilizing medium, whilst it is surrounded by a cooling liquid.  The sterilizing medium may be a product which is to be filled into the container.  After filling e.g. with hot food, it is closed hermetically, inverted in the cooling liquid so that the remaining air in the container passes through the hot product and is itself sterilized, and held in the cooling liquid until the product has cooled below the softening temperature of the plastic material. The plastic container preferably has at least one concave surface to provide for the reduction in internal pressure consequent upon the cooling.  According to an example, a beer-bottle shaped container of 700 ml. capacity having a wall thickness of 0.2-0.3 mm., produced from non-plasticised polyvinyl chloride by blow moulding, was immersed up to near its opening in a bath containing tap water.  The container was then filled with hot paraffin oil at a temperature of 182 DEG C. without exhibiting deformation.  The containers may be filled with irradiated food.
Patent GB-345245-A (GB)
Title: Improvements in or relating to bearing mountings
IPC: F16C35/073
Filed: 1929-12-18
Abstract: 345,245. Supporting and mounting bearings. SKF-NORMA GES., 60, Mohrenstrasse, Berlin. Dec. 18, 1929, No. 38773. Convention date, April 23. [Class 12 (i).] A bearing mounting particularly for rolls one end of which has to be lifted comprises a housing mounted on a support so as to be capable of pivotal movement about a transverse axis so located that the radial bearing load normally tends to prevent such movement from the normal position, and a housing stop preventing movement in the opposite direction beyond the normal position. A housing 3 rests on a fixed support 8, the end 10 of which acts as a stop preventing rotation in one direction, the other end of the housing resting on a semi-cylindrical fulcrum-forming bar 11 carried in a groove in the support. Tongues 13 on the support prevent lateral movement. Within the housing is a selfaligning roller bearing mounted on the roll-neck 2 by the provision of a taper sleeve and nut. The bearing is closed by labyrinth packings 14, 17, and is relieved of load during lifting of the opposite end of the roll by an adjustable stop 18 which is normally just out of contact with the member 14, and which also prevents damage to the packings. To facilitate lifting, the cover 17 may be extended to form a handle. Two or more points may replace the bar 11.
Patent GB-981850-A (GB)
Title: Lubricants
IPC: C07C69/593
Filed: 1963-10-02
Abstract: A minor proportion of an ester formed from a polyhydric alcohol and an alkyl or alkenyl succinic acid in which the alkyl or alkenyl group has 30-700 carbon atoms, is added to a lubricant, e.g. a mineral or synthetic lubricating oil, a lubricating oil containing fatty oil, or a grease. In an example the lubricant is a mineral lubricating oil and the additive is selected from the mono- and di-esters of pentaerythritol with polyisobutenyl (C76 or C104) succinic acid, and the monoester of mannitol and polyisobutenyl (C105) succinic acid. Other esters of similar type are also exemplified.
Patent GB-1433006-A (GB)
Title: Polymer dispersions
IPC: C08L7/00
Filed: 1973-08-20
Abstract: 1433006 Stabilized neoprene dispersions PETRO-TEX CHEMICAL CORP 20 Aug 1973 [21 Aug 1972] 39271/73 Heading C3P A stable aqueous dispersion comprises a polymer of chloroprene or copolymer thereof with an ethylenically unsaturated comonomer and a stabilizer selected from an ammonium or sodium salt of a sulphated alkyl phenoxy poly(ethyleneoxy)ethanol or an ammonium salt of a sulphated alkoxy poly(ethyleneoxy)ethanol wherein the polymer or copolymer is produced in the presence of an emulsifier which is other than any of said stabilizers. The stabilizer may be added to the monomer or during or after the polymerization thereof. The comonomer may be acrylonitrile, styrene, methylmethacrylate, isoprene butadiene or 2,3-dichlorobutadiene. In the examples chloroprene is polymerized in aqueous emulsion containing wood rosin, iodoform, 2,6-ditert.butyl paracresol, NaOH, sulphur and a condensation product of naphthalene sulphonic acid and formaldehyde to form an aqueous dispersion which is in some cases, compounded with ZnO, tetraethyl thiuram disulphide and ammonium caseinate and/or destabilized by addition of sodium aluminate and is stabilized by the addition to the aqueous dispersion or to the monomer before polymerization of one of: a sodium or ammonium salt of a sulphate of nonyl phenoxy polyethyleneoxyethanol or an ammonium salt of a sulphate of an alkyl (or dodecyl)polyethyleneoxyethanol or in comparative examples ethylene diamine tetraacetic acid, nonylphenyl polyethylene glycol ether or nonylphenoxy polyethyleneoxyethanol.
Patent GB-1358885-A (GB)
Title: Silver halide photographic emulsions with improved physical  characteristics
IPC: C08F2/26
Filed: 1971-08-20
Abstract: 1358885 Polymerizing with sarcosinate dispersants MINNESOTA MINING & MFG CO 20 Aug 1971 [21 Aug 1970] 39277/71 Heading C3P [Also in Division G2] Latices of polymers of acrylic and methacrylic esters, nitriles and amides, vinyl esters and halides, dienes, styrene, vinyl-toluene, vinyl pyridines and vinyl-quinolines are made by emulsion polymerization of the monomers, if desired together with smaller amounts of water-soluble monomers and functional reticulant monomers, in the presence of a dispersant of the formula where R is a saturated or unsaturated hydrocarbon group containing a chain of from 8-17 carbon atoms and optionally containing an aromatic ring attached to an ether linkage, and M is alkali-metal or ammonium. In examples, latices are prepared by emulsion polymerization of ethyl acrylate, methyl methacrylate, ethyl methacrylate, ethyl acrylate/methyl methacrylate, butyl acrylate/methyl methacrylate, ethyl acrylate/N-vinyl-2-oxazolidone, styrene and N: N-di-butylacrylamide in the presence of sodium or ammonium palmitoyl-sarcosinate, ammonium oleoyl-sarcosinate, or sodium lauroyl-, decanoyl- or N-(4-nonylphenoxyacetyl)-sarcosinate.
Patent GB-1306713-A (GB)
Title: Methods of manufacturing variable ratio steering gear sectors
IPC: B62D5/24
Filed: 1970-01-27
Abstract: 1306713 Gear-cutting; cutting gear-sectors A E BISHOP 27 Jan 1970 [3 Feb 1969 39502/72 Divided out of 1306712 Heading B3K and B3L A method of broaching or milling a variable ratio steering gear-sector 143 Fig. 8, having the contact surfaces of the teeth 145, 160, 163, 180, defined by arcs of fixed radii comprises using a cutter having a complementary surface. Flank 145 has a radius R struck from centre 146, flank 160 has a radius R struck from centre 156, flank 163 has a radius R<SP>1</SP> struck from point 169 Fig. 9, and flank 180 has a radius R<SP>11</SP> Fig. 10, struck from a centre 178 in Fig. 10. When the non involute teeth are broached the broach is reciprocated parallel to the axis 13a of the sector shaft 13 Fig. 3. The power steering mechanism which incorporates sector 143 is described in Specifications 1306712 and 1306714.
Patent GB-1154718-A (GB)
Title: Roller Bearing for Cylindrical Rollers
Inventor: SCHAEFFLER WILHELM
IPC: F16C19/46
Filed: 1966-09-06
Abstract: 1,154,718. Bearings. W. SCHAEFFLER, and G. SCHAEFFLER, [trading as INDUSTRIEWERK SCHAEFFLER oHG.]. 6 Sept., 1966 [7 Sept., 1965], No. 39833/66. Heading F2A. A roller bearing has rollers 5 mounted in a cage 6 having an end-ring 7 and cross-pieces 8. The rollers are retained axially by a radially inwardly-directed flange 2 of a bearing ring 1, the flange 2 being engageable with the end-ring 7 of the cage 6; and by an axially inwardlydirected portion 3 of the ring 1, the portion 3 being engageable with the rollers 5.
Patent GB-1242457-A (GB)
Title: A method and circuit for the control of oscillators
IPC: G04G7/00
Filed: 1968-08-20
Abstract: 1,242,457. Automatic frequency control systems. SYNCHRON. 20 Aug., 1968 [21 Aug., 1967], No. 39864/68. Heading H3A. In an oscillator synchronizing system in which the output from a controlled oscillator is compared with that from a reference oscillator in a phase comparator to produce an error signal, the error signal is periodically sampled, each sample is compared with the preceding sample and a control signal is computed from the comparison which adjusts the oscillator frequency so as to reduce to zero to error at the succeeding sampling instant.
Patent GB-873937-A (GB)
Title: Improvements in or relating to direct positive emulsions
Inventor: FRY DOUGLAS JAMES
IPC: G03C1/485
Filed: 1958-12-10
Abstract: Quaternary salt of the general formula:-<FORM:0873937/IV (b)/1> wherein R is an alkyl, allyl or halogen-substituted or unsubstituted aralkyl group and X is an anion, the quaternized pyridinium ring being joined to the vinyl group in 2- or 4-position, are prepared by reacting the corresponding bases with salts of the formula RX. Examples are given of the reaction of 1:2-dipyridylethylenes with benzyl chloride, benzyl bromide, p-chlorobenzyl chloride, methyl iodide, ethyl iodide, allyl bromide or ethyl toluene p-sulphonate. Specifications 843,363, 850,482 and 871,938 are referred to.
Patent GB-932007-A (GB)
Title: Improvements in or relating to stiffener material and its manufacture
IPC: B32B5/26
Filed: 1959-11-26
Abstract: 932,007. Shoe stiffeners. BRITISH UNITED SHOE MACHINERY CO. Ltd. Nov. 26, 1959 [Nov. 26, 1958; June 1, 1959; Oct. 20, 1959], No. 40137/59. Class 17 (2). [Also in Group VIII] Sheet material, capable of being converted to a stiff condition by treatment with a volatile solvent, comprises an intimate mixture of coalescible particles soluble in a volatile organic solvent and fibres, the fibrous content of the mixture being not less than one sixth and not more than one half by weight, in clinging engagement with a reinforcing fabric due to interspersion of fibres of the mixture with fibres of the fabric. The fibres may be of cotton, nylon, jute, hemp, hair, wool, kraft or sulphite pulp or asbestos. The coalescible particles may be of polystyrene, polyvinyl acetate, cellulose acetate or modified rosin, and may be made by pulverizing scrap. The fabric may be woven or unwoven, of rayon, cotton or hemp. As shown, a furnish of kraft pulp beaten in a Hollander and polystyrene beads is introduced into the vat 50 of a cylinder-type paper-making machine. The mesh of the paper-making screen may be larger than the particles in the mixture. Tobacco cloth 42 from a roll 74 is passed around a roller 76 resting on the screen of the cylinder 68. The water of the furnish passes through the fabric to the interior of the cylinder, leaving a layer of fibres and resin particles on the cloth. The resulting reinforced paper is couched by the roll 78 and carried by the felt 80 to a drying apparatus (not shown). The white water in the cylinder 68 is withdrawn by a pump and passed to a mixing device 86 where it is used to dilute fresh furnish for supply to the flow box 52 of the machine. The supply of fabric may then be discontinued, so that unreinforced paper is formed. The fabric surface of the composite sheet is coated with an adhesive comprising dextrin, borax, NaOH and water and bonded thereby to the unreinforced paper. In other embodiments an additional web of unwoven fabric is bonded by adhesive to the mixture side of the composite sheet; the fabric side of the composite sheet is coated with a cement containing neoprene, urea-formaldehyde resin, curing agent and solvent, and before the cement dries flock-particles of rayon fibre are applied; and the fabric side is spotted with solvent from a knurled roll to give local coalescence of the polystyrene particles, a cloth having a flock layer bonded to it by a rubber adhesive is then bonded to the fabric side of the composite sheet by a neoprene latex composition. The products may be subsequently rolled to smooth them and reduce their thickness. They may be cut and skived to form shoe stiffeners.
Patent GB-1160558-A (GB)
Title: Improvements in or relating to the Casting of Concrete Crazy Paving Slabs
Inventor: BERTIE ALAN
IPC: B28B7/24
Filed: 1965-09-22
Abstract: 1,160,558. Moulding concrete slabs. A. BERTIE. 15 Nov., 1966 [22 Sept., 1965], No. 40303/65. Heading B5A. A mould Fig. 1, for use in casting concrete crazy paving slabs is of rectangular form and is divided into four compartments 5-8 by three partitions 2-4 one extending between opposed side walls and at right angles thereto, a second one extending between adjacent walls and the third extending at right-angles from the second partition to a side wall. In use the mould is placed on a table, filled, compressed or vibrated to effect compaction and the excess matrix removed. A reinforcing expanded metal or plastics element may be embedded in the slabs. The slabs which form interlocking patterns are used to make paths of crazy paving.
Patent GB-1334442-A (GB)
Title: Synchronous electric motors
IPC: H02K19/08
Filed: 1971-08-31
Abstract: 1334442 Iron-based alloys LENCO A G 31 Aug 1971 [31 Aug 1970] 40505/71 Heading C7A [Also in Division H2] A hysteresis material comprising sintered alnico material containing 9-10% Al, 15-17% Ni,, 5-7% Co, 1À5-2À5% Cu, 0À005-0À2% B, remainder Fe, has a coercive field strength of 180-240 oersteds and a remanence greater than 8000 Gauss. The hysteresis material is prepared by subjecting the alnico material to soaking, annealing at 1220-1280‹C., cooling in still air to 550-650‹C., retention at the latter temperature for four to ten minutes and then air-cooling to room temperature within four minutes.
Patent GB-894509-A (GB)
Title: Improvements in or relating to composite tubular poles
IPC: E04H12/08
Filed: 1958-12-16
Abstract: 894,509. Tubular posts. STEINBICRLER, E. J. Dec. 16, 1958 [Dec. 19, 1957], No. 40552/58. Class 20(1) A tubular post comprises tapered tubes 14, 15, 16 formed from metal sheets bent to shape and welded at their overlapping edges 19, 21, and 20, 22, the narrow ends of the tubes having one edge 21 bent inwards so as to present a smooth exterior, while the wide ends of the tubes have one edge 20 bent outwards to present a smooth interior into which the smooth exterior of the narrow end of an adjacent tube may fit. To achieve this the edges are cut at 18. A spindleshaped transmitter mast is shown in Fig. 7.
Patent GB-1263918-A (GB)
Title: Steam reforming hydrocarbons
Inventor: BRIDGER GEORGE WALTER
IPC: B01J37/02
Filed: 1968-08-26
Abstract: 1,263,918. Steam reforming catalysts. IMPERIAL CHEMICAL INDUSTRIES Ltd. 29 July, 1969 [26 Aug., 1968], No. 40619/68. Heading B1E. [Also in Division C5] A steam reforming catalyst comprises a suitable metal, e.g. Ni, Co, or a Pt group metal, or mixtures thereof, on a refractory support, and at least 0.5% of a water-insoluble alkali in the form of orthoclase nepheline or Kalsilite, or a compound made by reacting an alumina-silica material with 70 to 100% of the stoichiometric quantity of an alkali metal compound required to give an alumino-silicate. An involatile basic compound, e.g. lime and/or magnesia, may be present in amounts ranging from 6 to 30%. In one example, Kalsilite is made by firing a mixture of Kaolin and potassium carbonate, and slurried with heavy magnesia. The slurry is added to nickel carbonate and the mixture filtered, washed and calcined to produce an oxide precursor. In another example, orthoclase is substituted for Kalsilite in the first example.
Patent GB-1485710-A (GB)
Title: Masking means for use in the copying of documents
IPC: B65G1/137
Filed: 1975-10-03
Abstract: 1485710 Document copying apparatus G RITZERFELD 9 Oct 1975 [17 Feb 1975]  41376/75 Heading G2A A printing mask for masking an original is formed as a tape carrying a series of such masks, which are successively displaceable with respect to the original, each mask having two transparent portions whose distance apart differs in each mask. The copying apparatus is of the type set out in Fig. 1 (not shown), in which an original (24) is scanned by moving mirrors (3, 5) and the image projected on to a rotating drum (9) carrying a selenium layer (10). The tape 27 carrying the masks is supported below the original, from which it is separated by a glass plate, and winds across between spools 28 and 29. Fig. 2 shows two complete masks, of length x, and part of a third. Each mask has a transparent portion 31, which is in the same position on all the masks, and a transparent portion 32 whose spacing from portion 31 can vary on different masks, and whose width can also vary. The masking tape can be stepped from one position to the next, and back again, under manual or automatic control, the details of which can be seen in Fig. 3 (not shown).
Patent GB-989973-A (GB)
Title: Cigarette making machine
IPC: A24C5/18
Filed: 1962-10-29
Abstract: 989,973. Cigarette making machines. AMERICAN MACHINE & FOUNDRY CO. Oct. 29, 1962 [Oct. 27, 1961], No. 40750/62. Heading A2C. Tobacco T is fed from a trough 10, 12 between moving surfaces 14, 16 which compact it on to an endless belt 20 to form a stream 18 of uniform density. The stream is trimmed by a pin wheel 24 before being fed on to a paper strip 36 of a cigarette rod forming mechanism. As shown, the moving surfaces 14, 16 consist of rollers having their axes parallel to the upper run of the belt 20. Alternatively, the surfaces may consist of endless belts (Fig 4, not shown) or the walls of a vibratory shoot (Fig 5, not shown). The rollers may be shaped as hyperboloids and made to rotate about axes which are tilted at an acute angle to the direction of travel of the upper run of the belt 20 so as to give the tobacco a component of motion along the direction of travel of the belt.
Patent GB-1337180-A (GB)
Title: Image pickup tube
IPC: H04N9/077
Filed: 1971-09-01
Abstract: 1337180 Colour television SONY CORP 1 Sept 1971 [3 Sept 1970] 40824/71 Addition to 1328411 Heading H4F [Also in Division H1] A colour television pick-up tube of the type described in Specification 1,328,411, having an array of vertical colour-filter strips to form a colour-separated image and an array of transparent vertical electrodes supplied with colourindexing signals, also incorporates one or more photo-electric devices for generating the indexing signals in response to signals radiated from optical sources outside the tube face so as to eliminate the need for direct electrical connection. The devices may be photo-voltaic or photo-conductive (in which ease the energy for their operation may be supplied by a further and continuous optical source outside the tube and acting on a photo-voltaic device inside), and the optical sources may be luminescent infra-red diodes. Fig. 11 illustrates the production of indexing light signals by alternately energized luminescent diodes 146A, 146B which are mounted externally of an otherwise unused part of the tube face, these signals producing indexing voltages for the colour-indexing electrodes A and B when they impinge on photo-voltaic diodes 137A, 137B inside the tube.
Patent GB-950276-A (GB)
Title: Improvements in or relating to magnetic separators
Inventor: STANLEY ALAN GEORGE
IPC: B03C1/18
Filed: 1959-12-02
Abstract: 950,276. Magnetic holding devices. DARWINS Ltd. Dec. 1, 1960 [Dec. 2, 1959], No. 40869/59. Heading H1P. [Also in Division B2] A magnetic separator includes a conveyer band of plastic material in which has been compounded powdered permanent magnet material having a coercive force of at least 800 oersteds, the band being magnetized perpendicularly to its surface. The band passes in a downward direction round a rotatable drum of high magnetic permeability and is diverted from the drum before returning to the surface thereof. As shown, a conveyer band 1 is magnetized through its thickness in bands, or stripes, e.g. transverse or longitudinal, of opposite polarity and passes around a mild steel drum 3. Plates 4, 6 of mild steel back the upper and lower runs respectively of the conveyer. Pieces of ferro-magnetic material 7 mixed with non-ferrous material 8 bridge pairs of opposite poles on the upper face of the band, the magnetic circuits on the inner face of the band being completed by the drum 3 and the plates 4, 6. When the pieces 7 reach the end of the plate 6 remote from the drum 3 they are no longer sufficiently attracted to remain on the band and drop into a container 10. A scraper 11 removes any small ferrous pieces from the band and the non-ferrous material 8 falls into a container 9. Rubber, polyethylene and P.V.C. are specified for the plastic band and the powdered magnet material may be of barium ferrite. Specification 950,275 is referred to.