baber/WOPTO huggingface dataset:
Patent GB-494794-A (GB)
Abstract: 494,794. Calculating-machines. UNDERWOOD ELLIOTT FISHER CO. Oct. 22, 1937, No. 28858. Convention date, Dec. 31, 1936. [Class 106 (i)] In a combined typewriting and computing machine having a carriage, serially-settable differential actuators and key-operated setting bars, the setting bars are moved out of the path of the differential actuators by carriage controlled means operated during carriage movement. The invention is shown applied to a machine in which each differential actuator 53 carries a set of pins (not shown). One pin, corresponding to the respective digit, is extruded from each actuator in turn and later a general operator bar moves beneath all the actuators and engages the extruded pins and so drives the actuators. During setting, each actuator is moved slightly forward in turn into setting position by a carriage cam as the carriage moves into the corresponding denomination. This movement brings the pins on the moved actuator beneath a series of setting bars 73. A numeral key 31 is then depressed and rocks a shaft 79 having an arm 15 which moves to the right a link 75 connected to a bellcrank 74 which lowers a setting bar 73 corresponding to the depressed key and extrudes a corresponding pin from that actuator 53 at this time in setting position. All the setting bars 73 lie over a bail 80 attached to a shaft 81 which is thus rocked to pull a link 85 to the left to rock a shaft 87 to lift slides 96, 97. The latter slide has a series of teeth 98 which are thus moved into engagement with a tooth 90 secured to the carriage 39. When the carriage moves to the next denomination, the tooth 90 forces down the slide 97 and lifts the bail 80 to ensure that the depressed setting bar 73 is lifted before the next actuator is moved into setting position. This prevents jamming between the pins and the setting bars. The shaft 87 is loosely mounted in a fixed bracket 88 and in a bracket 91 carried by an arm 92 on a shaft 93 to which is also secured a lever 100 held by a detent 101. When the detent is rocked the lever 100 is released and rocks to lower the arm 92 and tilt the shaft 87 so that the slide 97 is moved below the reach of the carriage cam 90 and the bail 80 is thus disabled. The lever 100 is restored by a pin 107 on a wheel 106.
Patent GB-1496559-A (GB)
Title: Electrostatically actuated display panel
IPC: G09F9/37
Filed: 1975-12-02
Abstract: 1496559 Alphanumeric displays; changing displays BENDIX CORP 2 Dec 1975 [6 Jan 1975] 49488/75 Heading G5C A panel presenting a matrix display or one or more elements carrying messages (Fig. 8, not shown) is formed by the end portions 46 of flexible conducting membrane elements 28, held by ends 42 fixed to the base 24 and coupled to hinge portions 44, in the thin gap between insulated 26, 22 conducting layers on both base 24 and transparent window 18, the sealed space 14 being filled with opaque insulating high dielectric constant fluid 16, e.g. dyed ethyl acetate. With alternating or direct potential difference between the conducting faces, application of base potential to the membrane moves it electrostatically against the window where the colour of the end part or the message contrasts with the fluid while the remainder of the element is masked or matches the fluid: application of the window potential to the element moves it back. If the base and window are at the same potential, any different potential on the element moves it to the nearest surface where it is retained. If the conductivity of the fluid is greater than that of the insulation 26, 22 on the faces, the insulation may preferably be in island form, still preventing contact of the membrane. Figure of eight patterns with an extra dot, or 5 x 7 array may display alphanumeric characters, with insulated pin connections 30 or insulated conducting film connecting strips under the base conducting layer (Figs. 3, 4, not shown). In multiple array displays the base conducting layer may be subdivided into an area for each array (Figs. 6, 7, not shown), to provide multiplex addressing, corresponding membrane elements in each array being commoned: to display elements, in one array their base layer and the elements are given potentials different from the window, while the other base areas have the same potential as the window so that corresponding elements in these areas move or remain at the nearest surface. To display simultaneously elements in the other arrays, each array is given required potentials in turn by a logic circuit, those already set retaining their aspect.
Patent GB-1525277-A (GB)
Title: Iminoisoindolinone compounds
IPC: C09B57/04
Filed: 1975-12-03
Abstract: 1525277 Imino-isoindolinone pigments SANDOZ Ltd 3 Dec 1975 [6 Dec 1974] 49615/75 Addition to 1426268 Heading C4P Imino-isoindolinone pigments comprise a cocondensate mixture of compounds of formula wherein R, is Cl, Br, F, methyl, methoxy or ethoxy, and R 2  is H or R 1 , at least two of the compounds in said mixture being present in an amount of at least 0À1 mol per mol of mixture. They are prepared by condensation of a compound  wherein X is S, (O-alk) 2  or, preferably, NH with at least two amines of formula  at least two of said amines being employed in appropriate amounts. The pigments are used for the mass coloration of polyethylene, polystyrene, polyvinyl chloride and synthetic leathers, rubber, spun viscose, cellulose acetate, and for paints, varnishes, lacquers, printing inks, paper, and for the coating and pigment printing of textiles.
Patent GB-1419177-A (GB)
Title: Line-scanning circuit stage
IPC: H03K4/08
Filed: 1973-10-25
Abstract: 1419177 Cathode-ray tube circuits; television line time-base circuits LOEWE OPTA GmbH 25 Oct 1973 [28 Oct 1972] 49674/73 Headings H3T and H4T [Also in Division H2] A television receiver employing a thyristorized horizontal deflection circuit is provided with a protective circuit which, in response to certain abnormal operating conditions shortcircuits the power supply to the fly-back thyristor of the deflection circuit, by rendering the latter conductive. This causes a reconnectable electronic fuse in the D.C. supply to the deflection to break and so interrupt the operation until it is reset. Fig. 1, shows one embodiment in which, when a voltage proportional to the deflecting current in the tangent correcting capacitor ("S"-shaping capacitor) 8 falls below a predetermined voltage and/or when, due to excess beam current in the cathode-ray tube, the voltage across resistor 48 in the secondary winding of the EHT transformer exceeds a predetermined value, respective circuits 15, 16 produce respective outputs which cause a gating circuit 14 to short-circuit the triggering pulses to ground and to apply the supply voltage U B  to the ignition electrode of thyristor 2. The latter is thus rendered continuously conductive and short-circuits the supply. Details of the circuits 14, 15 and 16 are given with reference to Fig 2 (not shown) A transductor circuit 11 inductively coupled with the deflection circuit regulates energy absorption
Patent GB-1243629-A (GB)
Title: Improvements in or relating to chemical finishes for glass reinforcing materials
IPC: C07F7/18
Filed: 1967-11-01
Abstract: 1,243,629. Glass cloth laminates. FIBREGLASS Ltd., K. H. GRUNDY, J. D. CRABTREE, and A. E. JOHNSON. 26 Sept., 1968 [1 Nov., 1967], No. 49742/67. Heading B5N. [Also in Divisions C3 and D1] Resin laminates are made from glass cloth which has been treated with an aqueous solution of a compound of the formula where R is α-methacryloxy propyl, α-glycidoxypropyl, or #-(3,4-epoxycyclohexyl) ethyl. The resin may be a polyester, epoxy or phenolic resin.
Patent GB-506937-A (GB)
Abstract: 506,937. Electric control systems for lifts. EXPRESS LIFT CO., Ltd., and HUNT, S. T. Feb. 9, 1938, No. 3971. [Class 40 (i)] In an electrical despatching system for a battery of operator - controlled lifts in which all lifts return to a predetermined floor, e.g. the ground floor, at the completion of each trip, each lift is despatched' when a starting signal is received automatically under the control of an individual switch which registers the waiting period of the lift relative to the other lifts. Fig. 1 shows apparatus which is common to all the lifts and Figs. 2 and 3 show the register switches and signalling equipment individual to two lifts. In order to equalize the traffic between the lifts, the system is so arranged that each lift, after first responding to the uppermost call and then collecting other calls, returns to a predetermined floor and the lifts are despatched in the order of return. When a lift, e.g. Fig. 2, returns to the predetermined floor contact ka1 is operated and relays AA, BA pull up to close the circuits of the register stepping magnet DA and the magnets, e.g. DD of other lifts which are standing at the floor. Subsequently, a deceleration relay contact ga1 releases relay AA and the register switches are stepped forward. Each time a lift returns to the floor the switches are stepped, the switch of the lift which has been out of use the longest time being. stepped further ahead than the others. When a lift moves upwardly, a contact'such as ja1 is operated to pull up relay LA and operate relay M which initiates the operation of an allotter switch AL. Relay M operates relay TM which interacts with the magnet AL under the control of a condenser to cause automatic stepping of the switch AL. When the switch arrives at a marked contact in the bank, AL2 is the contact marked by the most operated register switch; a corresponding relay, e.g. CD, is operated to light a lamp MG which indicates that the associated lift is the next to leave, operates a relay CE and releases relay M which closes a self-stepping circuit for restoring the switch AL to normal. Relay CE pulls up relay TX through a timing circuit comprising a neon tube ND and condenser AQ and relay TP is operated to light a start " lamp MH. The timing of the circuit ND, AQ may be varied by a resistance AB which is adjustable manually or by a clock to suit traffic requirements. If a lift is to be put out of service, an associated switch, e.g. SA, is opened to render the signalling equipment inoperative.
Patent GB-1373242-A (GB)
Title: Data reproducing system
IPC: H04N5/92
Filed: 1971-11-01
Abstract: 1373242 Optical playback system for picture and audio information MITSUBISHI DENKI KK 1 Nov 1971 [30 Oct 1970 26 Nov 1970] 50750/71 Heading G5R A system reproduces simultaneously associated picture and audio information respectively recorded in juxtaposed frames 34a, 34b on an optical record medium, e.g. a slide or cine film, the audio information being arranged in each frame 34b in temporal succession along vertical, spaced arrays, such as the columns of a matrix of audio data, Fig. 1, or continuous tracks, Fig. 10 (not shown), and the system comprises two light beams derived from a beam splitter, which respectively scan the frames 34a, 34b in a horizontal direction, the reproduced audio data being sampled so that the audio information is produced in correct temporal succession. The light source, an electronic flying spot scanner, must thus scan each audio frame m times, where m is the number of columns or tracks. The matrix of Fig. 1 is recorded by a similar process (Fig. 8, not shown), but the tracks of Fig. 10 (not shown) are recorded by a vertically-scanning flying spot (Fig. 9, not shown). In recording, Fig. 8 (not shown), the audio signal is applied to a control grid (62) of the scanner 10 to modulate the spot intensity. In playback, Fig. 2, the emitted light beam is split by a half-silvered mirror 26, and photoelectric transducers 36, 38 convert the beam intensities transmitted through the picture and audio frames 34a, 34b respectively to electrical signals. The output from picture transducer 36 passes through an amplifier 40 and circuits 42, 4 to produce a television picture signal at erminal 46. The output from audio transducer 38 passes through a combined gate and amplifier 52 which receives its gating pulses from a generator 54. Generator 54 combines horizontal blanking pulses from a horizontal deflection circuit 14 with a falling step waveform, shown in Fig. 2, from a generator 56, to produce gating pulses which lag behind the horizontal blanking pulses by an amount which is incrementally increased from one frame period to the next.
Patent GB-1531218-A (GB)
Title: Preparation of sorbent materials
IPC: C04B38/02
Filed: 1975-10-31
Abstract: 1531218 Cross-linked thermoset foams of aromatic amine polymers; polyquinoxalines MINNESOTA MINING & MFG CO 31 Oct 1975 [25 Nov 1974] 50979/74 Headings C3C and C3R  A black sorbent cross-linked thermoset polymeric foam which is believed to have a polyquinoxaline structure with the repeating unit with cross-linking between chains of the above units is made by reacting at its pyrolysis temperatures a mixture which is liquid at that temperature and which comprises at least one aromatic amine and sufficient nitric acid to give initially the evolution of nitrogen oxides followed by a pyrolysis reaction to give an expanded solid polymer which is a black sorbent cross-linked thermoset foam insoluble in organic solvents. In the examples mixtures of aniline, N-methyl aniline, p-anisidine, o- or p-toluidine, o-anisidine, m-chloroaniline, coal tar pitch or oil distillation residue with nitric acid were allowed to foam, optionally with initial heating, and the black solids were optionally ground to a powder and washed with water, aq. sodium hydroxide and acetone and then optionally heated at elevated temperature, e.g. 300- 800‹ C., in an inert atmosphere to increase the foam's specific surface area.
Patent GB-1521310-A (GB)
Title: Test circuit arranged to test one or more pairs of incandescent lamps working in parallel for example in motor vehicle lighting installations
IPC: B60Q11/00
Filed: 1975-12-12
Abstract: 1521310 Lamp testing circuit BAYERISCHE MOTOREN WERKE AG 12 Dec 1975 [14 Dec 1974] 51071/75 Heading G1U A pair of lamps 1, 2, Fig. 1, for example in a car, normally energized in parallel from a supply 16 under the control of a switch 11 (a switch 10 being normally closed), are tested when they are otherwise not in use by opening the switch 10 and applying power to the lamps from a supply 16a via a test switch 15. If either lamp is open circuit the base of a transistor 13 is raised sufficiently so that the transistor 13 conducts and a warning lamp 17 is lit. A second pair of lamps 18, 19 may be associated with the same warning lamp 17 via a second transistor 24, and many such double pairs may be associated with the same test switch 15, as shown. In a modification, Fig. 2 (not shown), switches 10 and 11 are controlled by a single relay so arranged that when the test switch 15 is closed the relay is made to drop out.
Patent GB-1164914-A (GB)
Title: Underground Formations.
IPC: E21B43/02
Filed: 1967-11-13
Abstract: 1,164,914. Consolidating wells. TEXACO DEVELOPMENT CORP. 13 Nov., 1967 [29 Nov., 1966], No. 51532/67. Heading E1F. To prevent the movement of unconsolidated sand particles from incompent formations penetrated by well bores when formation fluids are being recovered, the well is injected with a sand, cement and water slurry suspended in a hydrocarbon oil carrier at a pressure sufficient to force the carrier medium into the formation and the cement is permitted to set. The sand particles have a size of 10 to 80 mesh.
Patent GB-1157620-A (GB)
Title: Seal.
Inventor: PAYNE N
IPC: F16K41/04
Filed: 1965-10-28
Abstract: 1,157,620. Seals; pistons; valves. IMPERIAL CHEMICAL INDUSTRIES Ltd. 11 Oct., 1966 [28 Oct., 1965; 7 Dec., 1965], Nos. 45785/65 and 51870/65. Headings F2B, F2T and F2V. A seal comprises an inner element having a deformable annular sealing portion which is distended radially outwards to contact the walls of a surrounding vessel, the surface of the annular sealing portion being continuous with the rest of the surface of the inner element which is exposed to the fluid or vacuum to be sealed and made from a fluorine-containing polymer such as P.T.F.E., polychlorotrifluoroethylene, polyvinyl fluoride, polyvinylidene fluoride and copolymers of P.T.F.E. containing ethylene or hexafluoropropene. An annular sealing portion 10, Fig. 5, of a piston or valve spindle is expanded into sealing contact by a rubber tube 11 compressed by a nut 12 and spring 13. In another embodiment, Fig. 6, the annular sealing portion 34 of a valve spindle or free piston is expanded by fluid which is contained within a chamber 33 and pressurized by a rod screwed into a bore 32 of a metal or plastics core 31. A valve, Figs. 1, 2 and 10 (not shown), consists of a glass body and a P.T.F.E. spindle which is expanded into sealing contact with the body by axially compressing a rubber tube (1), Figs. 3 or 4 (not shown). The invention may also be applied to a rotary drive-shaft, Fig. 9 (not shown), which extends into a vessel containing toxic, corrosive or radio-active materials, an annular sealing portion being expanded into sealing contact by a rubber tube (21) compressed by a nut (22). If desired, the deformable annular sealing portion may be made of metal coated with the fluorine-containing polymer.
Patent GB-1282877-A (GB)
Title: Automatic lathes
Inventor: DIXON REGINALD JOHN
IPC: B23Q5/34
Filed: 1968-11-01
Abstract: 1282877 Automatic lathes WICKMAN MACHINE TOOL SALES Ltd 29 Oct 1969 [1 Nov 1968] 51940/68 Headings B3B and B3T In a single or multi-spindle automatic lathe having a tool slide which is displaceable longitudinally with respect to the axis or axes of the lathe spindle or spindles, the movement of the tool slide 19 is controlled by a rotatable cam disc 25 mounted on a drive shaft 24. The cam surfaces 26, 27 are mounted in fixed relation to the disc 25 and extend parallel to the axis of the drive shaft 24. A rod 22 with a cam follower 23 rigidly connects the tool slide with the cam, the rotation of the cam effecting controlled feed and return motions of the tool slide.
Patent GB-1498156-A (GB)
Title: Electronically scanned linear phased array antenna and method of producing scanning motion for the beam radiated by said antenna
IPC: H01Q3/34
Filed: 1975-12-19
Abstract: 1498156 Phased array antenna; ILS BENDIX CORP 19 Dec 1975 [6 Feb 1975] 52177/75 Headings H4A and H4D To provide a smooth scan of the microwave beam of a linear phased array antenna, the phase increments or decrements necessary to shift the beam from one aiming direction to another are applied to the signals of the radiating elements of the array in a predetermined sequence, thereby avoiding the step-like scan which would occur if the element signal phases were to be changed simultaneously. In the Fig. 2 embodiment, radiating elements 122 are arranged as pairs  1, ...  N, ... 40 in a linear array symmetrical about its centre element 0 and are energized with modulated RF energy via coupler 116, feeders 117, 118, couplers 119 and variable phase shifters 121. Steering command generator 123 controls the phase shifters and operates in a series of "coarse scan" steps, each such step comprising a sequence of forty "fine scan" steps. At each "fine" step the phase shift for a respective pair of elements 122 is changed (equal but opposite changes being made for the two elements of the pair). At the completion of forty "fine" steps the beam will have been moved through one "coarse" step. This movement is smoothest if the sequence in which the element pairs have their energization phase changed is substantially random. Details are given (Figs. 9A, 9B, 10, not shown) of a digital steering command generator which utilizes a quasi-random code generator for changing shifters 121 in a given quasi-random sequence which repeats at each "coarse scan" step. Each phase shifter 121 applies a phase shift having a component which is a multiple of some basic shift, the particular multiple for any given shifter being a function of the position of its associated element 122 within the array. Two alternately-scanning arrays of the above type are used in the aircraft instrument landing system shown in Fig. 1. Arrays 110 and 112 provide fan beams 111, 113 scanning in elevation and azimuth respectively. Both beams have coded modulation thereon enabling an aircraft to determine the ground angular coordinates of the beams at the moment they illuminate the aircraft. The aircraft is also able to determine its distance from a beam transmitter and to compute a landing course.
Patent GB-1124761-A (GB)
Title: Lacquer
Inventor: WIEJAK ALEKSANDER JERZY
IPC: C08L27/06
Filed: 1964-12-23
Abstract: A lacquer for coating plastic surfaces comprises a solution of a film-forming polymer dissolved in a liquid comprising 2-pyrrolidone, an N-alkyl 2-pyrrolidone or an N-alkenyl 2-pyrrolidone, particles of a linear polyester being dispersed in said solution.  The film-forming polymer may be polymers or copolymers of vinyl chloride, vinyl acetate, an acrylic ester or a substituted acrylic ester (e.g. methyl methacrylate); a mixture of polyvinyl chloride or a vinyl chloride/vinyl acetate copolymer and polymethyl methacrylate; or cellulose acetate butyrate, cellulose acetate or cellulose nitrate. The polyester may be polyethylene terephthalate, polyethylene isophthalate, polyethylene orthophthalate, or a polypropylene terephthalate. The lacquers may be made (a) by dissolving the film-forming polymer and the polyester in the pyrrolidone (with or without cyclohexanone) at an elevated temperature and then cooling to precipitate the less soluble polyester or (b) dissolving the film-forming polymer in a solvent which is a poor solvent for the polyester (e.g. acetone, methyl ethyl ketone, benzene, toluene or mixtures thereof) and mixing this solution with a solution of the polyester in the pyrrolidone (with or without cyclohexanone). In examples, the polyester was polyethylene terephthalate and the film-forming polymer was polymethyl methacrylate or a mixture thereof with (a) polyvinyl chloride or (b) a vinyl chloride/vinyl acetate copolymer and cellulose acetate butyrate.ALSO:A plastic sheet material is given a dull finish by (a) applying to the surface a lacquer comprising a solution of a film-forming polymer in a liquid comprising 2-pyrrolidone, an N-alkyl 2-pyrrolidone or an N-alkenyl 2-pyrrolidone, particles of a linear polyester being dispersed in said solution and (b) heating the resulting coating to evaporate the solvent.  The plastic sheet material may be of polyvinyl chloride or an acrylonitrile/butadiene/styrene copolymer.  The film-forming polyester may be a polymer or copolymer of vinyl chloride, vinyl acetate, an acrylic ester or a substituted acrylic ester (e.g. methyl methacrylate); a mixture of polyvinyl chloride or a vinyl chloride/vinyl acetate copolymer and polymethyl methacrylate; or cellulose acetate, cellulose acetate butyrate or cellulose nitrate. The polyester may be polyethylene terephthalate, polyethylene orthophthalate, polyethylene isophthalate or a polypropylene terephthalate.