baber/WOPTO huggingface dataset:
Patent GB-1320959-A (GB)
Title: Line figure scanning apparatus
IPC: G06V30/144
Filed: 1970-12-17
Abstract: 1320959 Character recognition systems INTERNATIONAL BUSINESS MACHINES CORP 17 Dec 1970 [29 Dec 1969] 59904/70 Heading G4R [Also in Division F2] Characters formed of straight lines parallel to either of two angularly disposed axes are sensed by a photosensitive scanner. The scanner includes two overlapping rotating discs. Light from the character passes to the photosensitive element through apertures in the discs, the apertures being so arranged that each of the lines is scanned in turn. In the embodiment described both discs are formed with a number of slits and relatively broad windows. Figs. 5A, 5B show the grid of lines from which the character is formed, the axes here being at 90 degrees. The path of a window 141a on one disc is shown intersecting the path of a slit 142a on the other disc, the disc and window together effectively scanning the photosensitive element across one only of the twelve lines forming the character grid. Other windows and slits coact to scan each of the other lines in turn. The signal from the photosensitive element has a level V1, Fig. 11, when no window is aligned with a slit and rises to V2 when the apertures are aligned so that the character-bearing surface is viewed. As the slit moves across the window the signal falls to V3 when a character line is crossed. The signal reverts to V1 as the slit leaves the window. The series of signals, each similar to that shown, arising from successive coincidences of the windows and slits passes to circuitry, Fig. 9 (not shown), which develops a bit of a characterrepresenting binary signal whenever a character line is crossed. The signal includes Start and Stop bits, derived from marks on one of the discs. The document scanner, Fig. 2, comprises a platen 30 with pins 31 for pin-feed stationary and with card pressure rolls 62, 64 for holding a card 34 to be scanned. The two apertured discs 121, 122 are carried on a carriage 92 mounted on bar 84 and rod 82. Bar 84 has a rack which engages a pinion driving the discs, so that the discs rotate as the carriage is moved. An arm 104 moving with the carriage carries a lens system 108 and mirrors to reflect light from the document on to the photosensitive element 126 via the aperture in the discs. The scanner may be associated with a printer such that the scanner normally scans the line of characters printed prior to the line now being printed. In such a case, if the scanning is stopped (e.g. by a computer fed by the scanner output) the scanner pivots upward about shaft 60 to maintain tension in the paper leaving the printer. When scanning starts again the scanner swings downward as each line is scanned.  The scanner may be arranged to scan three character sizes, and comprises the necessary gear-box, platen stepping ratchets, and lens assemblies. The carriage movement may be incremental rather than continuous. The discs may each carry two sets of slits and windows, one used for scanning characters during forward movement of the carriage and one during reverse movement.
Patent GB-1335571-A (GB)
Title: Alkali metal silicate particles and fibres and production of foams therefrom
IPC: C03B37/04
Filed: 1970-12-21
Abstract: 1335571 Foamable silicates FIBERGLAS CANADA Ltd 21 Dec 1970 [29 Dec 1969] 60512/70 Heading C1A Foamable alkali metal silicate particles or fibres are made by forming particles or fibres from a molten alkali metal silicate glass, and hydrating them to a moisture content of 5-40 wt. per cent. Sodium and potassium silicates are specified, having SiO 2  : M 2 O ratios of 1 : 1 to 5 : 1. A preferred glass contains 90-99% Na silicate (SiO 2  : Na 2 O = 3 : 1 to 4 : 1) and 1-10% K silicate (SiO 2  : K 2 O = 3 : 1 to 4 : 1). Other metal oxides (unspecified) may be present the molten glass may be attenuated by hot compressed air, superheated steam or a fuel gas flame into fibres of diameter 0À1-1À0 mil. (2À5-25 microns). The particles or fibres may be hydrated during or immediately after formation by treatment with steam the particles or fibres may also be treated, during or after formation, with vapours, aqueous solutions, dispersions, particulate sprays, dry particulate powders or aerosols of insolubilizing agents, complexing agents, and mineral or organic fillers. In one embodiment (Fig. 4) molten glass 14 is centrifugally dispersed by spinning device 52 into coarse fibres 53, which are then attenuated by gas blast from burners and/or steam vents 54 into fine fibres. Sprays 55, and powder feeds 56 allow treatment with additives before the fibres are collected on foraminous belt 31.
Patent GB-1261977-A (GB)
Title: Process for producing aromatic hydrocarbons
IPC: C07C15/24
Filed: 1969-12-15
Abstract: 1,261,977. Recovering aromatics. RUTGERSWERKE A.G. 15 Dec., 1969 [19 Dec., 1968], No. 61047/69. Heading C5E. Aromatic hydrocarbons are recovered from oils and residues rich in aromatics and also containing unsaturated compounds by subjecting the oil or residue to (1) heat treatment at elevated pressure, and then (2) evaporation by pressure decrease. The evaporated vapours are fractionated into appropriate aromatic fractions. The heat treatment is suitably at 300-500 C. for 10-60 minutes at 4-30 atmospheres pressure, and polymers formed from unsaturated compounds are quickly removed from the distillation apparatus with the sump product. In Example 1, an aromatic-rich residual oil from benzene pyrolysis to ethylene is heated under 4-10 atmospheres pressure for 45 minutes to a final temperature of 380 C., and then after pressure decrease is fractionated to give 4% light oil, 17% naphthalene oil, 21% alkyl naphthalene oil, 15% anthracene oil and 42% pitch. The further recovery of naphthalene, anthracene and phenanthrene is referred to, and the yields and purities of the products are compared with those from a similar fractionation without heat pretreatment.
Patent GB-1284620-A (GB)
Title: Method of separating isotopes
Inventor: GURS KARL
IPC: B01D59/34
Filed: 1970-12-23
Abstract: 1284620 Separation of isotopes BATTELLEINSTITUT eV 23 Dec 1970 61182/70 Heading C1A A method of separating molecules of a compound containing a first isotope of an element from molecules of the same compound containing a second isotope of the same element, e.g. separating U<SP>235</SP> and U<SP>238</SP>, comprises irradiating the molecules in the gas phase with a laser beam, e.g. a carbon dioxide laser, an emission line of the laser beam corresponding to a rotationvibration absorption line of the molecules containing the first isotope but not to the same absorption line of the molecules containing the second isotope, whereby the molecules containing the first isotope are excited and chemically converted but the molecules containing the second isotope are not, and separating the converted molecules from the unconverted molecules. Preferably one or more coreactants are added to the molecular gas which reacts preferentially with the excited molecules. The chemical conversion may alternatively be a decomposition reaction. Preferably the compound is heated to a temperature at which the chemical conversion is just beginning prior to the radiation and the irradiation is carried out in the presence of a diluent gas, e.g. an inert gas. The converted molecules may be separated from the unconverted molecules by fractional distillation. The compounds employed may be selected from UF 6 , UF n Cl 6-n  where n is an integer from 1 to 5, UCl 6  or U(BH 4 ) 4 .
Patent GB-1291079-A (GB)
Title: Production of di-neocarboxylic acids
Inventor: YEOMANS BERTRAM
IPC: C07C55/02
Filed: 1969-12-19
Abstract: 1291079 Di-neo carboxylic acids BP CHEMICALS Ltd 9 Dec 1970 [19 Dec 1969] 61918/69 Heading C2C Di-neo carboxylic acids are prepared by reacting an α,w-di-isoalkyl substituted monoolefin in which the isoalkyl groups are separated by not less than 3 carbon atoms with formic acid or carbon monoxide in the presence of a catalyst which is a mineral or Lewis acid and wherein a sacrificial olefin is included in the reaction mixture. The α,w-di-isoalkyl substituted mono-olefin is suitably 2,7-dimethylootene-4 and the catalyst concentrated sulphuric acid. The sacrificial olefin is suitably a (C 4 -C 20 ) acyclic mono-olefin having a branch skeleton of the type: Examples describe the preparation of 2,2,7,7- tetramethylsuberic acid.
Patent GB-1235010-A (GB)
Title: Positioning device
IPC: B23Q1/48
Filed: 1969-12-19
Abstract: 1,235,010. Cams. INTERNATIONAL BUSINESS MACHINES CORP. 19 Dec., 1969 [15 Jan., 1969], No. 61993/69. Heading F2K. [Also in Division H1] A semiconductor chip 1 is supported on a plate 5 slidable on a guide plate 7 and precisely positioned thereon by two cams 61, 65 which are movable by rotation of control knobs 23, 19 to rotate the plate 5 or to translate it linearly. Bolts 27, 29, 31 on the plate 7 project through clearance holes in the plate 5 to allow the latter to move up to, e.g. 1 mm. Springs on the bolts press the plate 5 on to the plate 7. Ball bearings 39, 45 on bolts 41, 47 extending from the plate 5 into a cavity 36 in the plate 7 are engaged by push rods 51, 53, 55 aligned respectively with springs 33, 35, 37 which interconnect the plates 5, 7. Push rod 53 is engaged by the spindle 17 of a micrometer 21 which positions the plate 5 in a Y direction. Push rods 51, 55 engage wedge cams 61, 65 respectively which are movable by knobs 23, 19 acting through oppositely handed screw threads 73, 69 so that rotation of the knobs in the same direction causes both push rods to move in the same direction to move the plate 5 in an X direction. Rotation of the knobs in opposite directions causes rotation of the plate 5 through a small angle. The plate 5 carries a vacuum chuck 85 to hold the workpiece 1.
Patent GB-1291487-A (GB)
Title: Carbon black and process for the manufacture thereof
IPC: C09C1/00
Filed: 1969-12-29
Abstract: 1291487 Carbon black PHILLIPS PETROLEUM CO 29 Dec 1969 [30 Dec 1968] 63050/69 Heading C1A [Also in Division C3] A low structure, large particle furnace black characterized by a random crystallite orientation, having a photolometer value of at least 80%, a nitrogen surface area of 5-20 m.<SP>2</SP>/gm. and a dibutyl phthallate absorption of 35-110 c.c./100 gm. (claimed per se) is produced by feeding hydrocarbon feedstock downwardly into a vertical pyrolysis zone, contacting this feedstock with a mass of hot free-oxygen containing gas at a temperature sufficient to maintain the feedstock at a temperature of 2400-2500‹ F., transporting this mass of feedstock and gas through the pyrolysis zone at an overall velocity of less than 15 feet./sec. The feedstock may be sprayed in as a mass of discrete particles, e.g. under the influence of an atomizing gas such as air or steam. Suitable free-oxygen containing gases include combustion gases produced by burning a hydrocarbon fuel in air, the fuel may be introduced to the furnace as a separate stream, or may be incorporated in the hydrocarbon feedstock. An after treatment of the black may be carried out by introducing secondary air into the furnace at a point, or series of points, partway along the furnace, prior to the exit. Additives, e.g. KNO 3 , may be incorporated in the feed.
Patent GB-684277-A (GB)
Abstract: 684,277. Printing - machines. KLEINEWEFERS, P., (trading as KLEINEWEFERS SOHNE, J.). July 24, 1950 [Aug. 17, 1949], No. 18394/50. Class 100 (ii). [Also in Group XXIV] In a registering device in textile or other web printing machines comprising a wheel to be rotated for registration relatively to a second wheel on a main driving shaft from which the first wheel is driven, an intermediate idler shaft is interposed between the first and second wheels the idlers of which can be turned relatively to one another by adjusting gear. As shown a gear 7 on a main driving shaft 20 meshes with a gear 6 free on an idler shaft 5, and a gear 4 fast on the latter meshes with the printing cylinder gear 3; gears 9, 10 of equal diameter but with an unequal number of teeth are rigid respectively with the gears 6, 4 and rotate together being coupled by a planet wheel 11 whose carrier 12 may rotate with the shaft 5 (the planet wheel will not normally rotate relative to its carrier but a positive lock to prevent such rotation may be provided); for registration adjustment the carrier 12 is rotated around the shaft 5, e.g. by coupling gears 13, 14 of equal diameter but with an unequal number of teeth and rigid respectively with the planet carrier 12 and the shaft 5; for this purpose they may be engaged by a gear block 15 on a manually or electromagnetically rocked crank arm 18. The whole mechanism is enclosed in a casing 8 adjustable about the shaft 20 to secure proper engagement between the gears 4, 3.
Patent GB-2029382-A (GB)
Title: Warehousing system with an interrupted vehicle guidance track
IPC: B66F9/06
Filed: 1978-07-25
Abstract: A warehousing system includes storage racks with interrupted stacking vehicle guidance tracks (3) which have spaces (4) in positions necessary for the insertion of the forks of a pallet truck, which can therefore be used in addition to a stacking vehicle (2) which is guided by the tracks (3), the stacking vehicle being provided with wheels (5) arranged in pairs such that at any time at least two wheels (5) on each side of the stacking vehicle (2) are in engagement with sections of the track (3). <IMAGE>
Patent GB-2007058-A (GB)
Title: Laser ranging system
IPC: G01S17/08
Filed: 1978-08-22
Abstract: The system comprises four modules, one of which is man portable and may be positioned 10 kms or more from the centralised power supply/control unit containing the other three modules. These modules are a power supply module 19 which generates pulses of incoherent optical excitation energy which is transported to the remote site module via optical light pipes 3 where it is used to excite the laser medium 1 installed there for the generation of the transmitted beam; the optical detection module 20 consisting of optical detectors to sample both the outgoing beam and its echo from the target, high speed electronic clocks to determine the flight time of the transmitted pulse from the remote module to target and back, and computers to analyse the ranging data; and the control module 21 which activates the laser ranging system and provides overall control of system operation. <IMAGE>
Patent GB-2006819-A (GB)
Title: Process for Preparing Hydrocarbons
IPC: C07C1/04
Filed: 1978-10-24
Abstract: A process for preparing aromatic hydrocarbons comprises contacting a gas with a H2/CO molar ratio less than 1.0 with a trifunctional catalyst containing one or more metals catalyzing the conversion of a H2/CO mixture into hydrocarbons and/or oxygen-containing hydrocarbons, one or more metals catalyzing the water gas shift reaction and a crystalline iron silicate, which may also contain atoms of aluminium, gallium and/or germanium.
Patent GB-2046555-A (GB)
Title: Telephone instrument
IPC: H04M1/56
Filed: 1979-01-29
Abstract: A read-out device incorporated in a subscriber's telephone instrument or forming a separate unit is electrically connected to the signal transmission circuit of the instrument so that a read-out of the dialled digits of a telephone number is obtained on a display panel, thereby enabling the dialling to be monitored visually.
Patent GB-2041569-A (GB)
Title: Apparatus and method for developing radiation sensitive devices
IPC: G03F7/30
Filed: 1979-02-01
Abstract: Radiation sensitive devices such as printing plates are, after image-wise exposure, treated with developer liquid to selectively dissolve unwanted areas of coating from the plate. The effectiveness of the developer liquid varies with its temperature. Apparatus for carrying out this developing procedure comprises means for contacting the stationary device with developer liquid; a temperature sensitive element to sense the temperature of the developer liquid and produce an output signal in dependence on that temperature; and a control means for controlling the developing of the device in a manner dependent on the output signal so that the period over which the device is in contact with the developer liquid is dependent on the temperature of the developer liquid. Exposure of the device to overall radiation before or during development is additionally controlled in dependence on the developer liquid temperature. <IMAGE>
Patent GB-2014026-A (GB)
Title: Mower-conditioners
IPC: A01D43/10
Filed: 1979-02-05
Abstract: A mower-conditioner comprises mower means 1 for cutting standing crop, rotary crop conditioner and spreader means 40, fixed deflectors 74, 76 and deflectors 69, 71, 72, 73 movable between positions relative to deflectors 74, 76, the deflectors being operable in one position of the movable deflectors to form a windrow of the crop discharged from the crop conditioner and spreader means 40 and in another position of the movable deflectors, (shown in phantom in Fig. 2), to allow the crop conditioner and spreader means to widely spread the cut crop. <IMAGE>
Patent GB-2042738-A (GB)
Title: An Extensometer for Rock and Soil Mechanics
IPC: G01N33/24
Filed: 1979-02-28
Abstract: An extensometer for measuring and monitoring vertical movements in rock and soil mechanics has at least two rods anchored at different positions in the ground and a measuring system for measuring relative movement of the rod heads. The measuring system comprises a capping device (1) which converts the path of movement of a rod head into hydrostatic pressure, and a measuring device (2) which determines this hydrostatic pressure by matching same with a compensation pressure generated by a source (19) of pressure fluid.
Patent GB-2018556-A (GB)
Title: Spreader
IPC: A01C15/00
Filed: 1979-04-12
Abstract: A spreader for matter such as liquid, solid manure or fertiliser which can also be used as a general transporter in which the floor has a conveyor feeding out through a closable end gate 50, a dismountable rotor, (not shown), being mounted above the rear end of the conveyor to throw matter against the open end gate and thence on to broadcast rotors 31 below the end gate. The end gate is adjustably opened according to the nature of the material to be spread. <IMAGE>
Patent GB-2025066-A (GB)
Title: Gyroscope
IPC: G01C19/06
Filed: 1979-07-03
Abstract: A gyroscope with reduced holding moment of the pickup on the rotor and a reduced proportion of leakage flux. It comprises a rotor 7 surrounding a stator and consisting of an annular non-magnetic shell 13 formed with a plurality of spaced, elongate, bores e.g. 16, 17 extending parallel to the axis of rotation 10 of the rotor, and a plurality of pins 18 of ferromagnetic material each secured in a respective one of the bores, which open in a radially outwardly direction to expose the pins; and an inductive pickup adjacent the rotor, including a magnetic core 25 having two spaced legs 26, 27 located in a radial plane passing through the rotational axis of the rotor, and a pickup coil 28 surrounding the core. The stator consists of axle 4, soft iron core 5 and energising coil 6. <IMAGE>
Patent GB-2026798-A (GB)
Title: Vehicle antenna amplifier
IPC: H04B1/10
Filed: 1979-07-06
Abstract: High-amplitude signals cause excessive interference in active antenna circuits. The antenna signal is supplied to the common input of a plurality of band-pass filters (1) which split the receiver frequency range into respective channels which are amplified by respective amplifiers (2) before being recombined (4). Alternatively reception of an excessively high-amplitude is used to trigger attenuation of the antenna signal before being wide-band amplified. <IMAGE>
Patent GB-2032557-A (GB)
Title: Fittings for fluid-tight connection to tubular members
IPC: F16L13/14
Filed: 1979-08-28
Abstract: A fitting 10 for joining two tubular members 52, 53 in a fluid- tight relationship, comprises a sleeve having outer end portions 11, 12 with ridge means 35 on the inner surfaces thereof for retaining a tube upon being compressed radially inwardly around the tube, sealing areas 13, 14 axially inwardly of the retention areas, the sealing areas including sealing elements 47, 48 on the inner wall of the fitting for forming a fluid-tight engagement with the tube received within the fitting upon compression around the tube, intermediate areas 41, 42 separating the end portions and the sealing areas, and a central portion 24 of increased wall thickness for providing a greater strength at that area. <IMAGE>
Patent GB-2035023-A (GB)
Title: Reversible plough
IPC: A01B3/28
Filed: 1979-09-07
Abstract: A reversible plough has a plough head carrying harnessing means 4, 6 and a rear carriage carrying the movable parts, the plough head carrying a fixed ring (13) inside which pivots a movable ring (14) fixedly connected to the rear carriage. Turning of the plough is effected by a jack (11) carried by the plough head at the front part thereof and connected to the movable ring 14. The two rings 13, 14 are mounted to be non-translatable with respect to one another by an assembly of balls or by rollers crossing each other in alternating directions. <IMAGE>
Patent GB-2058470-A (GB)
Title: RF sputtering apparatus
IPC: H01J37/34
Filed: 1979-09-28
Abstract: A power transfer network for efficiently coupling a source 15 of RF ( SIMILAR MHz) energy to a physically large (>50cm<2>) dimensioned electrode system 11, 13 in a sputtering machine which exhibits high stray capacitance to ground shunting the normally resistive sputtering plasma. The network includes an inductive element capable of being tapped along its length, such as a linear line section 19, and a tuning capacitor 27, each of the source and the electrode system being tapped into a suitable location along the inductive element. For more efficient power transfer, a string of at least three resonant networks is arranged between the RF source and the electrodes and these networks transform impedance and voltage values from one end of the string at the source to different values at the other end where they are tied to the electrodes. The apparatus may use multiple targets with multiple strings of resonant networks, each string being individual to a respective target, and provides for tuning of the networks and matching of the impedances. <IMAGE>
Patent GB-2042415-A (GB)
Title: Agricultural baler
IPC: A01D85/00
Filed: 1980-02-11
Abstract: A baler for harvested agricultural material, comprising a baling chamber bounded by partly movable side walls 7, 7', with a feed aperture located at the front end in the base of the baling chamber; means 2 for picking up hay or similar harvested material from the ground when the baler moves forward and guiding the material picked up to a feed passage 3 communicating with the feed aperture; and compressing tines 4 which each convey a portion of the material picked up from the feed passage, through the feed aperture into the baling chamber, and means for tying the resultant bale while still in the baling chamber; wherein the base 9 of the bale chamber is fixed to a front part of the baler so that it can pivot about a horizontal axis 8, and the two side walls 7, 7' of the bale chamber are fixed to the front portion so that they can each pivot about a vertical axis 6, wherein cable guides 15, 16, 17 are provided both at the side walls 7, 7' and at the non-pivotable top wall of the bale chamber, and wherein cables 10, 11 guide thereby are connected to the pivotable base 9 and to a hydraulic piston- cylinder unit 14 arranged on the top wall of the bale chamber. <IMAGE>