baber/WOPTO huggingface dataset:
Patent GB-1232329-A (GB)
IPC: G06K9/00
Filed: 1969-08-27
Abstract: 1,232,329. Fingerprint recognition. INTERNATIONAL BUSINESS MACHINES CORP. 27 Aug., 1969 [25 Sept., 1968], No. 42565/69. Heading G4R. Pattern recognition apparatus, for identifying a core of a fingerprint having a plurality of ridges, line scans the fingerprint at first and second angles to produce co-ordinates of first and second respective sets of points of tangency of the scanning lines with the ridges, and compares respective co-ordinates of the points of the two sets to determine the pair of points having co-ordinates differing by less than a predetermined quantity, the determined pair of points being taken as the location where the scans converge. The core is scanned in a plurality of parallel lines at the first angle, the distance between the scan lines being approximately the typical ridge thickness. The contents of X and Y counters, driven in step with the scanner, are gated to registers on detection of each white-toblack and following black-to-white transition to give the X and Y co-ordinates of the transitions. The extent of ridge crossing is obtained from the differences of the X and Y co-ordinates of each such pair of corresponding transitions and if it exceeds about twice the ridge thickness, the averages of the X and Y co-ordinates are stored as the co-ordinates of the point of tangency. After the whole core has been scanned at the first angle, scans are performed at the second angle until a point of tangency is obtained and stored in a similar way which is less than the typical distances between adjacent ridges from a point of tangency obtained in the scans at the first angle. The position thus obtained is taken as the core centre used as a reference point from which numbers of ridges can be counted and relative directions of line endings and bifurcations can be determined for storage and comparison for recognition purposes.
Patent GB-1238352-A (GB)
IPC: F01K7/44
Filed: 1968-10-07
Abstract: 1,238,352. Steam turbine plant. BABCOCK & WILCOX Ltd. Oct. 7, 1968 [Oct. 6, 1967], No. 47353/68. Heading F1Q and F1T. A steam power plant comprises a steam generator, a high-pressure turbine stage and a low-pressure turbine stage, the steam being reheated between the two turbine stages, there being means for leading part of the steam from the steam generator through the interstage reheater to constitute the heating fluid, there being also a further turbine and means for leading steam that has passed through the interstage reheater as heating fluid to the further turbine as working fluid therefor. The plant shown comprises a steam generator C the steam m 0  from which is divided into two streams m<SP>1</SP> and m 3 , the stream m 1  passing to the HP turbine for expansion therein, the steam m 2  discharging from the turbine passing to a steam separator S 1  where it is separated into steam and water, the steam being divided into two streams m 9  and m 10 , the stream m 10  passing to a first stage reheater R.S.1 then through a second stage reheater R.S.2, the reheated steam m 10  passing to the LP turbine BP for futher expansion therein; the second stream of steam m 9  from the separator S 1  is passed to a feed water heater R 4  and condenses therein; the water m 11  from the separator S 1  also passes to the feed water heater R 4  . The second stream of steam m 3  from the steam generator passes to the second stage reheater R.S. 2 to act as heating fluid, the steam discharging from the reheater to a steam separator S 3 , the steam m 4 <SP>1</SP> from which passes to an auxiliary turbine TA which drives the feed pump PA; the water m 8  discharged from the separator S 3  passes into a de-aerating tank B. The steam m 4  discharging from the turbine TA passes to a steam separator S 2 , the steam m 5  from which passes to the first stage reheater R.S.1 to act as heating fluid, the steam discharging from the reheater to the de-aerating tank B. The water m 7  from the separator S 2  also passes to the de-aerating tank B. The feed water from the heater R 4  passes through a heating coil D which is located below the water level in the de-aerating tank B, the feed water then discharging into the tank. Steam m 6  is tapped from the HP turbine and passed into the de-aerating tank B for direct heating of the feed water therein. The feed water m 0  from the de-aerating tank is passed by feed pump PA back to the steam generator C. The feed water is heated in three heaters (not shown), upstream of the heater R 4  by steam tapped from three stages of the LP turbine BP. A by-pass may be provided across the second stage reheater R.S.2 whereby a part m 12  of the steam m 3  may be passed directly to the auxiliary turbine TA. The by-pass is controlled by a valve R.
Patent GB-1238619-A (GB)
IPC: B65H23/10
Filed: 1970-01-22
Abstract: 1,238,619. Feeding webs. SOC. DE CONSTRUCTIONS MECANIQUES DE CREIL COMEC. 22 Jan., 1970 [23 Jan., 1969], No. 3242/70. Heading B8R. [Also in Division F2] A deflector drum, e.g. of the type described in Specification 1,166,549, for use when regulating the rate of winding of a plurality of strips of magnetic material on to a common mandrel comprises plurality of juxtaposed axially aligned wheels relatively rotatable one to the other about a common barrel, the wheels being peripherally magnetized to cause adherence of the strips to the wheels. The wheels may be of aluminium and incorporate embedded permanent magnets, or sheet magnets may be glued to the peripheries of the wheels. If the wheels are of a magnetic metal, the magnets associated with the peripheries are separated therefrom by non-magnetic material. The use of electromagnets is also envisaged.
Patent GB-1250311-A (GB)
IPC: G01R23/00
Filed: 1968-01-17
Abstract: 1,250,311. Frequency discriminators. SMITHS INDUSTRIES Ltd. 10 Jan., 1969 [17 Jan., 1968], No. 2589/68. Heading H3A. [Also in Divisions G1 and G3] A comparator for comparing the speeds of two engines includes speed-sensing devices for deriving two cyclically recurring signals that have frequencies dependent respectively upon the speeds of the two engines, wherein these two signals are applied alternately in a recurring sequence to a frequency discriminator, and modulation-responsive means provides an output in accordance with a modulation component of the output signal of the frequency discriminator, which output is dependent upon the difference between the two frequencies. A master engine 3, which may comprise a gas turbine, drives ferromagnetic toothed wheel 5, while slave engine 4 drives wheel 6, producing in probes 1, 2 pulse trains of frequency proportional to speed. The two pulse trains are switched alternately by switch 7, driven from power source 11, to squaring circuit 12, and thence to a frequency discriminator 14. Frequency discriminator 14, which may comprise a diode pump circuit 21 and filter 22 produces a square wave of step height proportional to the frequency difference and the A.C. component of this is passed by capacitor 19 and amplifier 20 to a synchronous detector 18 driven from power source 11. The output may be applied to an indicator 17, or may be fed back over line 23 to control the speed of the slave engine 4.
Patent GB-1252644-A (GB)
IPC: C05F17/02
Filed: 1969-02-25
Abstract: 1,252,644. Composting device. J. COLL. 24 Feb., 1970 [25 Feb., 1969], No. 10109/69. Addition to 1,149,156. Heading C1B. A composting device is claimed when used for composting in a method according to the parent Specification, serial number 1,149,156; the device comprises a tube open at the bottom end and tapering inwards from the bottom to the top, the top being enclosed with a lid or having a top section which supports a hinged or sliding flap through which compost material can be in serted into the device.
Patent GB-1257218-A (GB)
IPC: B29C48/90
Filed: 1969-02-21
Abstract: 1,257,218. Making: tubular film. LONZA Ltd. 21 Feb., 1969 [1, March, 1968], No. 9607/69. Heading B5B. A process for the manufacture of a molecularly biaxially-oriented thermoplastic tubular film includes extruding a film tube, supporting the tube against internal gas pressure by a coolable hollow support cylinder (e.g. 3), passing air between the tube and cylinder to prevent contact and remove condensate, preventing tube expansion by means of a first cooling ring (e.g. 5), and expanding the tube between the ring and a calibration cylinder (e.g. 7) by pressing the tube against at least one further cooling ring (e.g. 6) the position of each of which is adjustable along the tube axis, the speed of tube withdrawal from the first ring being greater than the speed of emergence of the tube from the nozzle. The molecular orientation of the film may be varied by selection of the distance between the rings, the size of the ring diameters, the shape, axial length and surface properties of the inner surfaces, or the temperature of the support cylinder or ring inner surfaces. The diameters of the rings may be such that the tube is not uniformly expanded. Air may flow between the tube and cylinder 3 from annulus 2 to annulus 4 or vice versa. The inner surfaces of the rings may be made of a textile, or of tetrafluorethylene. The use of polyvinylchloride is exemplified.
Patent GB-1257749-A (GB)
IPC: H02M7/10
Filed: 1970-06-10
Abstract: 1,257,749. Rectifier construction. INTERNATIONAL STANDARD ELECTRIC CORP. 10 June, 1970 [14 June, 1969], No. 28094/70. Heading H2F. A voltage multiplier comprises a stack 1 of rectifying plates disposed in an insulating tube having capacitors 8 connected in parallel with tapping points of the stack 1, the connections being made by means of corrugated contact members 6, 7 extending into or through the insulating tube.
Patent GB-1258041-A (GB)
IPC: C04B40/00
Filed: 1967-10-07
Abstract: 1,258,041. Concretes. UNIT CONSTRUCTION CO. Ltd. 3 Jan., 1969 [7 Oct., 1967], No. 45978/67. Heading C1H. A wall of lean, gap-graded, premixed and compacted concrete comprises coarse aggregate and sufficient air entrained matrix just to fill the voids between the particles of coarse aggregate. The matrix, which is composed of water, cement and fine aggregate, can be stripped (by washing and brushing) from the surface to present only coarse aggregate to the eye and atmosphere. A skin coat of plaster can be applied to the inner face of the wall.
Patent GB-1265614-A (GB)
IPC: A61B5/11
Filed: 1970-09-08
Abstract: 1,265,614. Capacitors. K. A. L. STIGMARK, N. I. JONSSON, J. W. LOFQVIST, and H. C. M. STENRAM. 8 Sept., 1970, No. 43032/70. Heading HIM. [Also in Division G1] The movements of animals enclosed within a cage 25 are monitored by utilizing a pair of capacitors mounted in the walls of the cage (see Division G1). As shown in Fig. 2, the capacitors are mounted in opposite walls of the cage and are provided by a plurality of plates 22 embedded in plastic material 24, connections being made via connectors 21, 23. Alternatively, the plates may be embedded in only one wall, the plates having an array as shown in Fig. 3 or 4 in which plates indicated by like shapes are connected to each other.
Patent GB-1265656-A (GB)
IPC: C08K5/57
Filed: 1968-05-24
Abstract: 1,265,656. Stabilizing P.V.C. IMPERIAL CHEMICAL INDUSTRIES Ltd. 28 April, 1969 [24 May, 1968], No. 24934/68. Heading C3P. [Also in Division C2] Polyvinylchloride compositions are stabilized by adding salts of alkyl, aralkyl or aryl tin groups with acid radicals of the formula NRR 1 R 2 , wherein R is a radical of the formula -(XO) n -CO-CH=CH-COO-, wherein X is an ethylene group optionally substituted by one or more alkyl or aryl groups, n is 1 to 20 and R 1  and R 2  are each radicals of the formula R or optionally substituted alkyl, cycloalkyl or aryl groups, in amounts from 0À1 to 8À0% of the weight of vinyl chloride components in the polyvinyl chloride. An example describes the stabilization of polyvinyl chloride using the dibutyl tin salt of the bis-acid maleate of N- ethylethanolamine.
Patent GB-1265702-A (GB)
IPC: H01F41/092
Filed: 1969-04-14
Abstract: 1,265,702. Coiling helices. METEOR A.G. 14 April, 1969 [19 April, 1968], No. 19022/69. Heading B3E.  A disc 32 carrying four mandrels 62 is rotated to successively align each mandrel with a driving spindle 24 having clamping jaws 27, 29 and a cutting sleeve 26, the aligned mandrel being displaced axially to selectively engage and disengage the spindle 24. Wire is fed from a supply reel (not shown) to the jaws 27, 29 which are closed by forward movement of the mandrel 62, by a cam, into the position shown in Fig. 3. The mandrel is rotated by the driving spindle 24 to wind a coil in a space 100. On completion of the coil winding, the spindle and cutting sleeve 26 are secured in a predetermined position and simultaneously a sleeve 78 is pulled back to allow a spring 57 to return the mandrel to its initial position. The disc 32 is then rotated through 90 degrees, pulling off additional wire from the supply reel, so that a second mandrel is aligned with the spindle 24. The second mandrel is moved forward to clamp the wire between jaws 27 and 29 and on further forward movement of the mandrel to the position shown in Fig. 4 the wire between the formed coil and the jaws 27 and 29 is cut by edge 26<SP>1</SP>. The completed coils are ejected by a ram operated plunger.
Patent GB-1265731-A (GB)
IPC: B41B19/00
Filed: 1969-01-14
Abstract: 1,265,731. Cathode - ray tube displays. HARRIS-INTERTYPE CORP. 14 Jan., 1969 [4 March, 1968], No. 2252/69. Heading H4T. Alpha-Numeric characters are produced on a cathode-ray display tube by forming a lightspot on the screen and deflecting this spot in step-by-step fashion from one to another of a plurality of locations on the screen which, in the aggregate, form a desired character, the quantities required to produce such deflections being produced under the control of data which specifies each location with reference to the preceding location. The invention is described in the framework of the display system described in Specification 1,255,841, shown generally in Fig. 1, which discloses an Alpha-Numeric character display in which digital data representative of the various characters to be produced together with timing data and other control data are derived from a rotating optical record 10. To enhance the rate of access the data appertaining to each character is repeated a plurality of times in a circular track on the record and further improvement in the access rate is achieved by dividing the data for each character in each repetition into a plurality of sections, the start and end of each of which is identified by control data so that a character may be reproduced by utilizing the data from the various sections in any sequence (Figs. 2 and 3, not shown). Thus, the character " a " (Fig. 5), which is specified by data in three sections I, II and III having " start " coordinates X 1 , Y 1 , X 2 , Y 2  and X 3 , Y 3  respectively, may be formed by positioning the beam at any of the latter " start " co-ordinates and after forming that particular portion of the character, by forming the remaining portions in any order. In the present invention the beam 45 (Fig. 4) may be deflected only in the seven directions 0 to 6 shown. Initially, the beam is positioned of one of the " start " co-ordinate position, e.g. X 2 , Y 2  (Fig. 5) and thereafter instructions in serial form and supplied such as 2, 2, 2, 2, 4, 5, 5, 5, 5, 4, 2 ... &c. which, in this example would move the spot up the first and down the second line of elements immediately to the left of the vertical line dividing section II from section I. Each deflection comprises a unit step having a direction specified by the numerical value of the instruction (supplied in digital form) in accordance with the directions shown in Fig. 4 and Fig. 6 shows in enlarged form the sequence of deflection required to produce the portion of the character shown in the " box " 46 of Fig. 5. The overall system is described and details of the operation of the character generator 20 (Fig. 1) are given together with a table showing the sequence of operations in producing a character. The characters produced on the tube screen may be recorded by moving photographic film, the motion of which is controlled by the system.
Patent GB-1266070-A (GB)
IPC: C10G11/18
Filed: 1970-06-19
Abstract: 1,266,070. Fluidized catalytic cracking. GULF RESEARCH & DEVELOPMENT CO. 19 June, 1970 [25 June, 1969], No. 29782/70. Heading C5E. A process for cracking at least one relatively low MW gas oil fraction and at least one relatively high MW gas oil fraction to gasoline in the presence of a fluidized zeolite catalyst comprises charging the low MW fraction to an upstream position and the high MW fraction to a downstream position in a cracking zone, cracking the fraction at 482-593 C. for a residence time of less than 5 seconds during which catalyst and hydrocarbon both flow concurrently through the zone so as to avoid formation of a catalyst bed in the reaction flow stream, the cracking of the low MW fraction being performed in the presence of a diluent vapour which reduces the partial pressure of the low MW fraction and recovering debutanized gasoline in increased yield. Suitable diluents are steam, N 2 , CH 4  or ethylene.
Patent GB-1288541-A (GB)
IPC: F16C1/16
Filed: 1970-01-21
Abstract: 1288541 End fittings for Bowden mechanisms TELEFLEX Inc 21 Jan 1970 [23 May 1969] 2955/70 Heading D1T [Also in Division E2] A terminal for the inner wire of a Bowden mechanism comprises a resilient block 16 that has a slot 44 into which said inner wire can be forced with a snap-in action. As shown the slot has a V-shaped part that leads said wire into a recess of circular cross-section. The block has a further recess 46 for accommodating a metal slug at the end of the wire; and a hole 42 whereby the block can be secured to a control member. In a modified construction Fig. 8 (not shown) the recess 46 is a narrow one that accommodates a folded up end portion of the wire thus avoiding the aforementioned metal slug.
Patent GB-1290329-A (GB)
IPC: H04N5/84
Filed: 1968-12-06
Abstract: 1290329 Television COLOUR FILM SERVICES Ltd and R J VENIS 3 Oct 1969 [6 Dec 1968] 58055/68 Heading H4F In a system wherein images produced on a cathode ray tube are recorded on continuous motion film, smearing of the film image, due to the integration at each point of the long term component of the phosphor afterglow from a series of raster lines, is prevented by arranging for a shutter to follow the scanning spot in a direction transverse to the raster lines and preferably spaced from the spot by a distance less than that between successive raster lines. The shutter is placed either adjacent the film plane or at some other aerial image plane, and comprises a plurality of blades pivotally connected at either end to rotary members.
Patent GB-1290473-A (GB)
IPC: B61K9/08
Filed: 1970-01-22
Abstract: 1290473 Indicating track condition MATISA MATERIEL INDUSTRIEL SA 22 Jan 1970 [24 Jan 1969] 3252/70 Heading B7N [Also in Division G1] The transverse inclination of a railway track at a first place where track adjustment is taking place is measured by sensing the inclination with a member 2 and transferring the sensed inclination by means of a shaft 4 to a second place unaffected by the track adjustment occurring at the first place, measuring the transverse inclination at the second place by means of a device 8, measuring the difference in the inclinations at the first and second places, and adding the difference to the inclination at the second place. Device 8 may be a spirit level or an electronic level indicator. The difference in inclinations may be measured by a pointer 9 and scale 10 as shown or by an inductive transformer. The electronic instruments may control levelling of the track.
Patent GB-1290535-A (GB)
IPC: E02F3/84
Filed: 1969-09-30
Abstract: 1290535 Bulldozers VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTITUT STROITELNOGO I DOROZHNOGO MASHINOSTROENIA 30 Sept 1969 47985/69 Heading E1F [Also in Division G3] A bulldozer has a blade 3 the. position of which relative to a horizontal plane is automatically sensed and compared with a predetermined position, and means are provided for moving the blade relative to the body of the machine in dependence upon the comparison so as to restore the blade to the predetermined position. A pendulum device 4 senses the position of the blade and is electrically connected via a comparison member 7 and a signal amplifier 8 to a switching unit 9 controlling a hydraulically operated servomotor 11 connected to the blade, the comparison member 7 being fed with a signal representative of the predetermined position from a device 6. The switching unit 9 is also controlled in an overriding manner by a signal from a sensor 16 responsive to the speed of the main shaft of the prime mover of the bulldozer, the signal being compared by a member 15 with a signal from a device 18 representative of a predetermined shaft speed whereby if the speed should fall below that predetermined the blade is raised until the latter speed is attained.
Patent GB-1290792-A (GB)
IPC: D06L3/12
Filed: 1970-11-03
Abstract: 1290792 Optical brighteners FARBENFABRIKEN BAYER AG 3 Nov 1970 [3 Nov 1969] 52215/70 Heading D1P [Also in Divisions C2 and C5] Textile materials and paper are optically brightened by treatment with 2-styrylbenzotriazoles of the formula in which R 1  is hydrogen, halogen, alkyl or alkoxy and R 2  and R 3  are each hydrogen, halogen, alkyl, alkoxy, aryl, aryloxy, aralkyl, aralkyloxy, amino, acylamino, cyano, carboxy, alkoxycarbonyl, carbamoyl, sulpho, sulphamoyl, sulphonyl or optionally substituted pyrazole or triazole radicals. The brighteners may be applied from an aqueous medium to synthetic, semi-synthetic or natural textile materials or to paper at various stages of manufacture. Examples describe the treatment of a terephthalic acid/ethyleneglycol polyester yarn and fabric, a polyamide fabric and a polypropylene yarn.
Patent GB-1296102-A (GB)
IPC: C07K1/00
Filed: 1970-02-19
Abstract: 1296102 Antiseborrhoeic compositions L'OREAL 19 Feb 1970 [19 Feb 1969] 8133/ 70 Addition to 1051870 Heading A5B A cosmetic composition comprises at least one cysteine having the formula: in which R represents a (C 6 H 5 ) 3 C-, (C 6 H 5 ) 2  CH-, C 6 H 5 CH 2 -, R'OOC-(CH 2 ) n  radical, R' represents H or C 1-6  alkyl and n is an integer from 1 to 4, or an inorganic or organic acid addition salt thereof, or a derivative thereof in which one of the H atoms of the amino group is substituted by a -COR''' or -SO 2 R''' radical in which R"' represents C 1-6  alkyl or an aryl radical and at least one resin conventionally used in cosmetic compositions. The composition may be in the form of a hair lacquer or wave setting lotion and may be packaged as an aerosol.
Patent GB-1305561-A (GB)
IPC: C03C3/074
Filed: 1969-07-30
Abstract: 1305561 Ceramic seals INTERNATIONAL COMPUTERS Ltd 11 May 1970 [30 July 1969] 38141/69 Heading B3V [Also in Division C1] Ferrite elements are bonded together by a method comprising maintaining the elements spaced apart to form a gap, placing adjacent the gap a glass containing a copper compound and capable of completely wetting the ferrite at a temperature less than 700‹ C., heating the glass to said temperature and causing the glass to flow into the gap. The glass may flow into the gap by capillary action or under pressure. A suitable glass has the composition (by weight) PbO 71%, B 2 O 3  16%, ZnO 10%, SiO 2  1%, SnO 2  1% and CuO 1%. The elements may be bonded to form a magnetic reading or recording head.