baber/WOPTO huggingface dataset:
Patent GB-1233443-A (GB)
IPC: G06V10/12
Filed: 1968-10-11
Abstract: 1,233,443. Character recognition. SCAN-DATA CORP. 11 Oct., 1968 [13 Oct., 1967], No. 48253/68. Heading G4R. A character reading system scans the character field in a plurality of zig-zag sweeps, the signals produced at the transverse limits of each sweep being sampled for character reading. A C.R.T. 20 scans the character according to the pattern of Fig. 2, viz. a vertical raster, each line of which is " modulated " to form a square wave. The sensed character signals, after correction for beam intensity at 92, have their transitions accentuated in a peaking filter 96 before subtraction of a local average blackness indication at 108, this indication coming from integrating at 102 the outputs from taps on a delay 98 connected as shown. The subtractor 108 output is quantized at 114, the bits relating to the corners of the scan path lying at odd and even values of X (see Fig. 2) going to respective shift registers 134, 136 which feed recognition circuitry 142. The C.R.T. horizontal and vertical deflection voltages are controlled as shown by counters 38, 46 fed by a computer 34, the voltages being corrected for character size in accordance with the contents of shift registers 36, 44 fed by the computer in accordance with information from recognition circuitry 142. The first step in the Fig. 2 scan path at the bottom of each vertical line of the basic raster may be vertical rather than horizontal. The " modulation " of the basic raster could alternatively be as in Fig. 10. The basic raster could be horizontal rather than vertical.
Patent GB-1237987-A (GB)
IPC: H02K3/52
Filed: 1969-11-17
Abstract: 1,237,987. Terminals for dynamo-electric machines. CONTROLS CO. OF AMERICA. 17 Nov., 1969 [18 Dec., 1968], No. 56106/69. Heading H2A. In a dynamo-electric machine including two adjacent coils 16, 18, shown in plan view, the coil end conductors 26, 24 are respectively connected to leads 30, 28 by connectors 34 and 32, Fig. 3 (not shown), the connectors being embedded in a body 36 of insulating material, e.g. polyvinylchloride, wedged in the space between the coils. The leads 30, 28 pass through the space between the coils so that any tension in the leads tends to increase the extent to which the body 36 is wedged between the coils.
Patent GB-1239719-A (GB)
IPC: C09D175/14
Filed: 1970-03-31
Abstract: 1,239,719. Modified alkyd resins. FARBENFABRIKEN BAYER A.G. 31 March, 1970 [3 April, 1969], No. 15205/70. Heading C3R. An alkyd resin modified by radicals of at least one drying fatty acid or the isomerization or conjugated derivative thereof, containing urethane groups and having an acid number of 30 to 70 and a hydroxyl number of 20 to 120 may be prepared by reacting an alkyd resin modified by radicals of at least one drying fatty acid or derivative thereof and containing free OH groups with a mono- or polyisocyanate. The alkyd resin reacted with the isocyanates may have acid and hydroxyl numbers greater than those desired. Alternatively, a first alkyd resin modified by radicals of at least one drying fatty acid and having an acid number below that desired and a hydroxyl number above that desired in the final product is reacted with a mono- or polyisocyanate to obtain a second alkyd resin containing urethane groups which is then reacted with a dicarboxylic acid anhydride. A second alternative method is to react the drying fatty acid modified alkyd resin having a hydroxyl number higher than that desired with a dicarboxylic acid anhydride to obtain a partially esterified alkyd resin which is reacted with a mono- or polyisocyanate. The alkyd resin containing urethane groups may be at least partially neutralized with ammonia and/or an amine and/or an alkali. The salt may be used in an aqueous varnish composition. In an example, pentaerythritol, linseed fatty acid and phthalic anhydride are esterified, followed by the addition of further phthalic anhydride. The resin dissolved in dimethylformamide is reacted with toluylene diisocyanate, the product neutralized with ammonia and diluted with water to form a lacquer.
Patent GB-1252896-A (GB)
IPC: E04B1/98
Filed: 1968-12-03
Abstract: 1,252,896. Vibration damping laminated systems. FARBWERKE HOECHST A.G. 3 Dec., 1968 [5 Dec., 1967], No. 57352/68. Heading B5N. [Also in Divisions B2 and C3] A vibration damping laminated system comprises two plates, e.g. of metal such as steel, bonded together with an interlayer comprising a graft polymer of 35-65% by weight of an equimolar mixture of styrene and acrylonitrile on 65-35% by weight of a copolymer of 10- 30% by weight of vinyl acetate and 70-90% by weight of ethylene. The graft polymer may contain minor amounts of fillers, e.g. heavy spar, silicic acid, graphite, soot or a mixture thereof, and one or more plasticizers. The total thickness of the laminated system may be 1-6 mm., the thickness of the interlayer being 0À1-1 mm. and the ratio of the thicknesses of the plates being from 1 : 1 to 4 : 1. The graft polymer may be applied to the plates by trowelling brushing or pouring at an elevated temperature and the system cooled under pressure between rollers. A gel of the copolymer in the styrene/acrylonitrile mixture to be grafted on which contains a polymerization initiator, e.g. tertiary butyl hydroperoxide, may be applied between the plates and the laminated system subjected to heating at 60-180 C. to effect grafting.
Patent GB-1257219-A (GB)
IPC: C08G73/16
Filed: 1969-02-28
Abstract: 1,257,219. Coatings. FARBENFABRIKEN BAYER A.G. 28 Feb., 1969 [1 March, 1968 (4)], No. 10839/69. Heading B2E. [Also in Divisions C2 and C3] Sheet-metal, e.g. Al, Zn, Cu, or Fe, may be lacquered with solutions of polyesterimides. The sheet-metal may have rust spots. The polyesterimides are made by condensing (A) polyfunctional cyclic polycarboxylic anhydride(s), or compounds convertible thereto, with (B) polyfunctional oxazolines at 100-400‹ C. (A) is cyclic dicarboxylic acid anhydride containing either (a) 1 or 2 further cyclic dicarboxylic acid anhydride groups, or (b) 1 or 2 other functional groups capable of being condensed or added, e.g. -COOH or ester groups; instead of the anhydride groups, o-dicarboxylic acids or phenyl esters thereof may be used. (B) contains 2 or more #<SP>2</SP>-oxazoline rings which may be linked to cyclo-aliphatic, aromatic, aliphatic, or heterocyclic, optionally substituted radicals, and may be substituted, e.g. by methylol or radicals or ester groups. In a modification, additional polymers may be co-condensed, e.g. polyimides, polyesters, polyisocyanurates, polybenzimidazoles, and polyhydantoins. Catalysts may be present, e.g. tertiary amines, octoates of Zn, Co, Cu, or Pb, or iron acetyl acetonate.
Patent GB-1258207-A (GB)
IPC: F16C1/22
Filed: 1970-05-15
Abstract: 1,258,207. Push-pull cables. SQUARE D CO. 15 May, 1970 [30 June, 1969], No. 23615/70. Heading B7E. [Also in Division F2] A mechanism for actuating a flexible cable comprises a plunger 18 secured to an inner cable 16 and engaged by cam followers 11, 12 which are moved by cams 6, 7 on a shaft 5 in response to movement of a crank-arm 8.
Patent GB-1259454-A (GB)
IPC: H02K13/00
Filed: 1968-05-23
Abstract: 1,259,454. Welding by pressure; soldering. MORGANITE CARBON Ltd. 15 May, 1969 [23 May, 1968], No. 24637/68. Heading B3R. [Also in Divisions C7 and H2] A contact brush of carbon and metal carries a sintered layer of metal (e.g. copper or iron or an alloy thereof) to which a flexible lead is attached, the sintered layer being of higher tensile strength than the brush material and the area of its joint with the -brush being preferably greater than that of the flexible lead. The lead may be attached by welding, e.g. pressure resistance welding, or by soldering or by tamping a metal powder in a cavity around it. The brush may consist of graphite mixed with from 25 to 95% of metal consisting of copper with which may be mixed lead, tin, zinc, manganese or silver, or a mixture thereof, up to a total of 16% of the whole mixture. Small amounts of abrasive or solid lubricant (molybdenum disulphide, p.t.f.e., stearic acid, zinc stearate) may be included. This mixture may be sintered simultaneously with a layer of metal powder to formthe metal layer on the brush.
Patent GB-1264120-A (GB)
IPC: H01H23/02
Filed: 1968-05-20
Abstract: 1,264,120. Indicators for switches. JOSEPH LUCAS (INDUSTRIES) Ltd. 14 May, 1969 [20 May, 1968], No. 23837/68. Heading H1N. A pivoted operating member 16 is provided with an elongated transparent member 22, and two differently coloured filters 26 and 25 moved by the operating member allow light from a socket 19 for a light source to enter the member 22 and by internal reflection to illuminate the upper end of the member 22 which is visible on the exterior of the operating member. As shown, one end of an optical cable 20 is inserted in socket 19, the other end being positioned adjacent the side lights of a vehicle. Another optical cable may be inserted in a socket 14 to illuminate a transparent or translucent portion 13 of the switch housing. The member 22 is engaged with a snap fit in member 16 and has serrations 23 serving to reflect the light to the inside. In a modification (Fig. 2, not shown) the filter 25 is carried on the part 24, adjacent filter 26, instead of being directly mounted on member 22. In each case the light emanating from the upper end of member 22 changes colour with the change in position of the operating member 16.
Patent GB-1266263-A (GB)
IPC: B65G69/28
Filed: 1970-04-28
Abstract: 1,266,263. Dockboards; counterbalancing. SERCO ENG. Ltd. 28 April, 1970 [28 April, 1969], No. 20396/70. Headings B8B and B8E. A loading dock 10 has a hinged dockboard 14 provided with a hinged lip 16. Bumpers 21 prevent engagement of the board by a vehicle when the board is in its lowered position. The dockboard is at least partially counterbalanced by a folded torsion bar 27 having parallel portions 28, 29 joined by a loop 34 connected to a part 29 and the free ends 31, 36 engaging the board 14 and fixed stop 37 respectively. The counterbalanced boards are raised manually by chains 22. In a modification the dockboard may be divided into two or more parts arranged adjacent to each other along the dock 10 and the torsion bars of each may extend under other adjacent parts.
Patent GB-1266333-A (GB)
IPC: D01F9/22
Filed: 1968-05-24
Abstract: 1,266,333. Carbon filaments. MORGANITE RESEARCH & DEVELOPMENT Ltd. 20 May, 1969 [24 May, 1968], No. 24884/68. Heading C1A. Carbon fibres are produced by pyrolysing filaments of acrylonitrile homopolymer or copolymer in an atmosphere of oxygen at a temperature between 190‹ and 260‹ C. and then carbonizing the resulting blackened filaments in a protective gaseous atmosphere at a temperature of at least 500‹ C., wherein the protective atmosphere is allowed to remain stagnant after the temperature reaches 500‹ C. The blackened filaments are preferably carbonized at a temperature of at least 1400‹ C. In a preferred embodiment the blackened filaments are heated to a 1000‹ C. whilst in a graphite boat and protected with carbon black as a gettering material under a protective atmosphere of argon which is allowed to remain stagnant after the temperature reaches 500‹ C., the resulting filaments being then cooled, wrapped in brown (Kraft) paper and heated to 2400‹ C. in a fresh atmosphere of argon which is allowed to remain stagnant after the temperature reaches 500‹ C. The filaments may be maintained under tension during pyrolysis in the oxygen atmosphere. 'The acrylonitrile may contain 85 mol. per cent of acrylonitrile.
Patent GB-1266435-A (GB)
IPC: C09B1/20
Filed: 1969-08-06
Abstract: 1,266,435. Couplers for diazotype materials. MITA INDUSTRIAL CO. Ltd. Aug.6, 1969 [Aug.7 1968], No.39371/69. Heading G2C. Couplers which are present in two-component diazotype materials or are used with an alkali to develop one-component materials are of the formula Z 1  -NH-C-NH-Z 2  # X wherein X is sulphur or <SP>-</SP>NZ 3 , Z 3  being alkyl, hydrogen, hydroxyalkyl or hydroxyaryl, Z 2  is X II hydroxyaryl or -Z 1  -NH-C-NH-Z 5  wherein Z 4  is arylene or of formula wherein Y is O, S, = CO, = CS, -CONH-SONH- or = SO 2  and Z 1  and Z 5  are hydroxyaryl groups; any hydroxyaryl group or the group Z 4  may be substituted. Preferred couplers are those of formulae wherein X is oxygen or sulphur, Q is hydrogen, - SO 3 H, -SO 3 M, -COOH, or -COOM, Q<SP>1</SP> is hydroxy, -SO 3 H, -SO 3 M, -COOH or -COOM, M being ammonium or alkali metal and m and n are 1 or 2. Two component diazotype materials may also contain silica, vinyl polymers, gelatine, casein, dextrin, gum arabic, dyes, diethylurea (thus rendering the material heat-developable) and succinic acid.
Patent GB-1288807-A (GB)
IPC: C22C14/00
Filed: 1969-10-02
Abstract: 1288807 Titanium base alloy REACTIVE METALS Inc 2 Oct 1969 [2 Oct 1968] 48484/69 Heading C7A Metostable beta Ti base alloy comprises, in atomic percentages:- the balance being Ti, and has an average valence electron density of 4À15-4À35. The alloy may be solution treated and aged.
Patent GB-1296568-A (GB)
IPC: F16K41/04
Filed: 1970-09-11
Abstract: 1296568 Valves; seals M H GROVE and J M E GROVE [trading as M & J DEVELOPMENT CO] 11 Sept 1970 [6 Oct 1969] 43577/70 Headings F2B and F2V A sealing arrangement for the stem 18 of a gate valve includes a stack of flat seal rings 41a-41c located in recess 42. Each ring is sealingly engageable with both the stem 18 and the wall 43 of recess 42, and when the stem is raised to the valve-open position the rings adopt the position shown. When the stem is lowered, the rings engage the bottom of the recess which has an inclined surface 46 allowing the rings to tilt to a position relieving excess pressure in a recess 52 supplied with plastic lubricant or viscous sealant from unit 53. In a preferred arrangement, rings 41a and 41c are of nylon whereas ring 41b is of softer " Teflon " (Trade Mark). An auxiliary seal is shown at 38 and consists of an 0-ring 47 sandwiched between nylon or Teflon washers 49, 51. In a modification, a stack of five rings can be provided in recess 42, there being two of Teflon each sandwiched between a pair of nylon rings. The arrangement includes a scraper 56 and a stack of lubricant-saturated felt rings 57.
Patent GB-1297868-A (GB)
IPC: H01R39/34
Filed: 1970-07-21
Abstract: 1297868 Current collection in dynamo-electric machines LENINGRADSKOE ELEKTROMASHINOSTROITELNOE OBIEDINENIE "ELEKTROSILA" IMENI S M KIROVA 21 July 1970 35161/70 Heading H2A A slip-ring assembly for a dynamo-electric machine comprises a slip-ring 12, Fig. 4, a conductive bar 13 attached to a current-distributing ring 11 which faces the slip-ring, and conductive gaskets 14-16 interposed between the slipring 12 and distributing ring 11 and extending symmetrically on either side of the bar 13. The gaskets 14, 15, 16 extend over not more than half the area of the facing surfaces of the slipring and distributing ring, and have increasing conductivities to ensure a more-uniform distribution of current to the slip-ring. In Fig. 4 the distributing ring 11 and gaskets are disposed concentrically within the slip-ring 12. In another embodiment, Fig. 1, they are flat rings 2, 5-7 disposed against an end face of the slipring 1, insulation 4 isolating the conductive bar 3 from direct contact with the slip-ring.
Patent GB-1302184-A (GB)
IPC: E04D3/36
Filed: 1969-05-27
Abstract: 1302184 Prefabricated buildings PORTASILO Ltd 27 May 1970 [27 May 1969] 26788/69 Heading E1A A cabin or hut for temporary use and having sanitary fittings is constructed from prefabricated roof and wall panels of plastics material with the adjacent roof panels 9, 10, 11 and 12 spaced apart at 14 for drainage into a metal gutter 15 therebetween serving as a beam interconnecting two opposite walls of the building. Each gutter is provided with lifting lugs 19 and is secured to U-section metal uprights 6 adjustably mounted on support legs 8. For details of the wall panels Specification 1302183 should be referred to.
Patent GB-1305048-A (GB)
IPC: B65G65/46
Filed: 1970-12-15
Abstract: 1305048 Screw conveyer SEVERODONETSKY FILIAL "NIIKHIMASH" 15 Dec 1970 59585/70 Heading B8A A screw feeder for pasty materials has a charging chamber 2 with rotatable Z-blades 5 delivering to a conveying chamber 3 having a screw 6 eccentrically embraced by a cylindrical helical ribbon 8 the turns of which pass between those of the screw at its lower portion. The pitch of the ribbon is an integral multiple of that of the screw; they are of the same hand and are rotated synchronously by a gear-box 10, their angular speeds being inversely proportional to their pitches, so that the ribbon continuously cleans the screw.
Patent GB-1308464-A (GB)
Title: Clear air turbulenc detector apparatus
IPC: G01J5/00
Filed: 1970-07-10
Abstract: 1308464 Detecting clear air turbulence DEFENCE SECRETARY OF STATE FOR 2 July 1971 [10 July 1970] 33541/70 Heading G1A In an apparatus for detecting clear air turbulence (CAT), an aircraft-mounted radiometer 1 provides signals respectively representing the mean temperatures of at least three regions in the atmosphere ahead of the aircraft and centred about sight-lines 2, 3, 4 having different angles of elevation or depression with respect to the aircraft, there being associated circuitry which derives a temperature-difference signal dependent on the difference between the temperature of the central region and an average of the temperatures of two regions on opposite sides of the central region. This temperature-difference function T is sensitive to the pressure of CAT conditions and may be displayed directly on a unit 12. However, temperature conditions in the tropopause region Fig. 3 (not shown) may give rise to a T value which erroneously indicates CAT. Hence the unit 12 preferably displays a discrepancy function T* = T - Ts, where T s  is calculated temperaturedifference signal which is expected from the same fields of view in a normal temperature distribution, e.g. in a "normal", unturbulent tropopause. T s  is calculated, in a calculator 10 which is supplied with signals representing the aircraft's height and attitude, 7 and 8, and the known height Zp of the tropopause in the vicinity of the aircraft. The radiometer itself may be used to find the tropopause height by supplying two or more of the measured temperatures to a store which in turn feeds a comparator and logic circuits which calculate Zp. In one form of radiometer the three temperatures are measured by cyclically changing the field of view of a single photo-cell Fig. 5 (not shown). A mirror (22) is rocked consecutively and cyclically through three sighting positions. A Cassegrainian optical system including two infrared filters (20, 26) directs radiation onto the photo-cell (28). A rotating apertured disc (27) in the optical path has its movement synchronized with that of the mirror so that while the mirror is changing positions the disc directs radiation from a constant-temperature reference source (29) to the detector so as to compensate for any detector drift. The disc apertures may be provided with different density filters. The detectors described in Specification 1220814 and U.S.A. Specification 3402295 may also be used. Alternatively three photo-cells having different fields of view may be used.
Patent GB-1313190-A (GB)
Title: Gas purification process
IPC: C10K1/12
Filed: 1970-12-07
Abstract: 1313190 Carbon dioxide, hydrogen sulphide MASCHINEN - UND APPARATEBAU GRIMMA VEB 7 Dec 1970 58093/70 Heading C1A [Also in Division C5] Natural gas, cracked gas, synthesis gas, pyrolysis gas and town gas are purified of CO 2  and optionally of H 2 S by treatment with an absorbent comprising an aqueous solution of K 2 CO 3  and the potassium salt of mono-methyl aminopropionic acid, with regeneration of the solution by stripping with nitrogen and steam to recover CO 2 . The weight ratio of amino nitrogen (g N per litre) to K 2 CO 3  (g K 2 CO 3  per litre) must lie in the range 1 : 10 to 1 : 250, preferably 1 : 50, and the concentration of K 2 CO 3  is in the range 20 to 400 gms per litre.
Patent GB-1314387-A (GB)
Title: Method and arrangement for the regeneration of electrolytic  solutions
IPC: C25D21/18
Filed: 1970-07-11
Abstract: 1314387 Regenerating electrolytic solutions IFA GETRIEBEWERKE BRANDENBURG VEB 11 July 1970 33768/70 Heading BID [Also in Division C7] Spent electrolytic solutions are regenerated by passing in a continuous flow through an apparatus including a sedimentation tank and a filter. In the figure electrolytic solution normally flows from reservoir 13 via line 10, pump 11 and line 12 to electrolysis apparatus 9 returning via line 14. When the regeneration is to be effected, the electrolytic solution is pumped to line 15 instead of line 12 and enters sedimentation tank 1. Clarified solution is taken off by adjustable overflow 3 and controllable gravity feed 4 to storage tank 2 below tank 1. Sediment from tank 1 is led via controllable gravity feed 5 to filter 6, the sludge being removed via inclined plane 7 to collector 8 and the filtrate passes into the storage tank 2. Clarified solution is led off from storage tank 2 to reservoir 13 as required.
Patent GB-1315129-A (GB)
Title: Process and apparatus for the biological purification of waste water
IPC: C02F3/06
Filed: 1969-12-01
Abstract: 1315129 Biological purification of waste water SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 30 Nov 1970 [1 Dec 1969] 58585/69 Heading C1C A process for the biological purification of waste water comprises forming an arrangement of a multitude of strands of a foamed synthetic organic polymer in a basin containing waste water, allowing micro-organisms in the water to grow on the strands and maintaining the water in the basin for a sufficient period of time to allow the micro-organisms to reduce the concentration of waste in the water. The strands are preferably made of a foamed polyolefin, e.g. polypropylene.
Patent GB-1319864-A (GB)
Title: Control means for controlling operation of an electrical circuit
IPC: E05F15/20
Filed: 1970-07-31
Abstract: 1319864 Remote control of garage doors J HORROCKS 24 Aug 1971 [31 July 1970] 37105/70 Heading G1A In a control means responsive to pulsating plane polarized light and suitable for opening a garage door two photo-sensitive resistors 6 and 7 are placed inside a tubular housing 8, as shown, one in front and one behind a polarized light filter 9, and control is effected when light from a headlamp 3 equipped with polarized filter and a flasher unit 5 falls on the photo-sensitive resistors 6 and 7, the circuit 12 being designed to effect pulsation signals only and to activate an electrical door opening circuit 13. In circuit 12, Fig. 2, the photo-sensitive resistors 6 and 7 and a variable resistor 17 form a potential divider 17 connected to the base of a transistor 14 so that when planes polarized light (orientated at 90 degrees to the plane of the filter 9) falls on the photo-resistors the change in their resistances switches on the transistor 14. A transformer 15, 18 connected to the collector of the transistor 14, locks D.C. signals but allows pulsating signals to pass and switch on a further transistor 20 thereby activating a relay 21 and a solenoid controlling the garage door. In an alternative arrangement two polarization filters are inserted in the beam and the two sub beams are detected together with an unpolarized beam.