baber/WOPTO huggingface dataset:
Patent GB-1157090-A (GB)
Title: Improvements in or relating to a method and apparatus for Bending Glass in Sheet Form
IPC: C03B23/025
Filed: 1965-12-02
Abstract: 1,157,090. Bending glass sheets. TRIPLEX SAFETY GLASS CO. Ltd., and J. ADAMSON. 16 Nov., 1966 [2 Dec., 196S], No. 51239/65. Heading C1M. Glass sheets are bent convexly about an axis and concavoly about a perpendicular axis by heating on a horizontal skeleton mould having long edges 2 convex and short edges 3 concave and complementary members 7 resting under gravity on the glass along the concave surfaces. Indicator arms 14 pivot at 13 and member 16 measures the displacement of the glass. Two sheets may be prepared together and are subsequently laminated in known manner to form an automobile window. Heating is carried out in three stages, two pre-heat and one bending, by advancing the sheet and mould discontinuously. Additional local heating is provided where greatest curvature is required. The complementary members 7 are covered with graphiteimpregnated glass fibre cloth to prevent uneven cooling from cracking the bent glass as it cools.
Patent GB-1605267-A (GB)
Title: Optical scanning and display device
Inventor: LOY FERNAND
IPC: G02B17/08
Filed: 1977-12-09
Abstract: This device allows the optical scanning of a field of view in two directions termed line and frame and the displaying of the said field. According to the invention, the means of displaying the analysed field, in part common with those for analysis, are designed so as to exhibit the magnification +1 and so that the displaying is done in a direction parallel to that of the average direction of the analysed field. Application: Infra-red viewing device. <IMAGE>
Patent GB-1198873-A (GB)
Title: Fired Heater for Process Fluids, Particularly Hydrocarbons
IPC: B01J19/24
Filed: 1968-11-01
Abstract: 1,198,873. Tubular cracking furnace. PULLMAN Inc. 1 Nov., 1968 [16 Nov., 1967], No. 52009/68. Heading C5E. Normally gaseous or liquid hydrocarbons are cracked to produce olefins, e.g. ethylene, in a furnace comprising a refractory enclosure containing a plurality of essentially straight reaction tubes which make a single pass through the enclosure, and which communicate with a plurality of essentially straight quench tubes in a quench section. In Fig. 3, enclosure 10 contains vertical tubes 12 which extend below the enclosure as quench tubes 14 having cooling jackets 16. Burners 56 extend into enclosure 10 from the top. Feed enters at 40, and after preheating passes via lines 44A and 44B to feed header 46, and thence by flexible connectors 48 into lines 12. Product is collected, after quench, in header 52. Provision is made for on-stream decoking, e.g. by introducing steam from header 32, and also for high pressure steam or water lances for off-stream decoking. The reaction and quench tubes may be connected by U-bends, thus lowering the height of the overall structure (see Fig. 5, not shown). Fig. 4 shows the radiant section in two portions 104A and 104B, tubes 108 passing once through each section. Each portion is heated independently, by roof burners 114 and floor burners 106 respectively, thus providing close control of the overall time-temperature profile.
Patent GB-1286835-A (GB)
Title: Frequency discriminator circuit
IPC: H03D3/08
Filed: 1969-10-23
Abstract: 1286835 Frequency discriminators MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 23 Oct 1969 [28 Oct 1968 20 Sept 1969] 52067/69 Heading H3A In a frequency discriminator comprising inductively or capacitively (Fig. 15, not shown) coupled tuned circuits and oppositely connected pairs of diodes 28a, 29; 28b, 30, a signal e 1  derived from the primary tuned circuit is applied by an arrangement, e.g. capacitor 27 or a coupling inductance (Figs. 13, 14, not shown), to the centre of the secondary tuned circuit and two signals E<SP>+</SP>, E- obtained between the two ends of the secondary tuned circuit and ground respectively are compared with the signal e 1  to form two further signals which are subtracted to obtain the output signal. A narrower selection band is obtained by having a further inductance (Fig. 9, not shown) coupled to the primary and connected between the centre of the secondary and the junction of diodes 29, 30 so that the reference signal is increased by e 1 . Alternatively the inductance may be connected to ground to produce a slightly larger bandwidth. A narrower band may also be achieved by decreasing the detection efficiency of diodes 28a, 28b by series connected resistors (Figs. 12, 14, 15, not shown). Fig. 14 (not shown) relates to a ratio detector while all the other embodiments relate to a Foster-Seeley type of discriminator.
Patent GB-1213307-A (GB)
Title: The use of acylated alkanolamines in dispersing chemical adjuvants to be introduced in photographic materials
IPC: G03C1/38
Filed: 1967-11-15
Abstract: 1,213,307. Incorporating ingredients into photographic materials. FERRANIA S.p.A. Nov.15, 1967 [Nov.17, 1966], No.52085/67. Heading G2C. [Also in Division C2] Acylated alkanolamines having general formula where R represents a linear or branched alkyl group of 1 to 18 carbon atoms, n is not more than 6, X and Y are independently hydrogen or an alkyl radical, R<SP>1</SP> represents a hydrogen atom, an alkyl group or the group where R, X, Y and n are as above, and R<SP>11</SP> represents a hydrogen atom or a linear or branched acyl group of 2 to 18 carbon atoms, are used as solvents for introducing colour forming couplers, ultraviolet absorbers or other chemical adjuvants into silver halide photographic emulsions. The solution of the coupler, for example, in the solvent, is emulsified in a homogenizer or colloid mill with water, which may contain a waterpermeable hydrophilic colloid of the type employed in producing photographic emulsions e.g. gelatine, P.V.A., or agar-agar, and possibly also a surfactant and an emulsifier. The dispersion obtained is then introduced into a silver halide photographic emulsion. If required, a known solvent can be added to the solvents of the present invention to change the physical properties of the dispersion. In the examples given, certain couplers were dissolved in the acylated alkanolamine solvents by application of heat. In some cases ethyl acetate was used as co-solvent. The hot solution was then poured into a 4% gelatine solution containing a small amount of sodium tetradecyl sulphate. The mixture was emulsified in a homogenizer, and introduced into a silver halide photographic emulsion.
Patent GB-1023810-A (GB)
Title: Improvements relating to character recognition apparatus
IPC: G06K9/00
Filed: 1964-12-23
Abstract: 1,023,810. Automatic character reading. INTERNATIONAL BUSINESSMACHINES CORPORATION. Dec. 23, 1964 [Dec. 30, 1963], No. 52304/64. Heading G4R. Apparatus for reading characters shaped so as to consist of areas lying in seven vertical zones comprises means for scanning the characters to obtain corresponding zone signals, means giving an indication of the overall slope of each zone signal and for classifying it accordingly and a circuit for identifying the character from the classified zone signals. The character is scanned by being moved under a magnetic reading head to obtain the waveform shown at s. Alternatively a slit-type optical senser may be used with a differentiation to produce the same signal. The zones 1-7 correspond to the parts of the curve s between adjacent peaks. The first peak is used to set a start trigger which gates clock pulses to a counter. The pulse frequency is controlled by the speed of movement of the document and is such that twelve pulses correspond to the width of the normal zone. A 4-stage binary counter receiving these pulses gives an output at a count of twelve which is used to reset all the circuits and to supply a zone counter. This consists of an 8-stage ring the zone outputs i-p being distributed successively on 8 leads. The clock pulse counter gives a rising voltage output which is smoothed to form a staircase signal u, one ramp for each zone. At the count of twelve the voltage resets and begins again. The zone signals s are enhanced to make the overall slope move easily determined by multiplying them with the ramp voltage. Generally the zone signals are not as shown in the ideal form S but rise and fall non-linearly. The product of this signal and the ramp signal may be as shown in V and is integrated (w). The signal s is also integrated to produce the waveform t and so as to normalize the signals the integrated product w is divided by the integrated waveform t and the result applied to an upper and lower threshold device to classify the slope positive, zero or negative. The levels + k and - k come from a circuit which rectifies the wave s and gates the first peak with a store. This peak value sets the threshold level. The seven classified zone signals are gated by distributed pulses i-p into three seven-stage -registers. The twenty-one outputs are gated in appropriate combinations to identify the character sensed. Retiming.-If the character is badly printed the waveform may be displaced with respect to the correct zone positions as shown by the dotted wave s. The system compensates for this by retiming the clockpulse counter by signal in the second zone and, if necessary, in the sixth zone so that all the circuits begin again at the later time. Thus the ramp voltage is reset and begins somewhat later coinciding with the peak position in the second zone. The integrators reset also so that the dotted waveforms t and w are produced. The zone counter signals are also delayed. Provision may be made to retime the circuit in every zone if desired.
Patent GB-1318140-A (GB)
Title: Phosphorodiothiolic acid esters a process for their preparation and their use as insecticides acaricides and nematocides
IPC: A01N57/14
Filed: 1971-11-11
Abstract: 1318140 Phosphorodithiolic acid esters BAYER AG 11 Nov 1971 [18 Nov 1970] 52425/71 Heading C2P The invention comprises compounds of the general formula wherein R<SP>1</SP> and R<SP>2</SP> are C 1 -C 4  alkyl, R<SP>3</SP> is C 1 -C 4  alkyl or a group of the formula wherein n is 0, 1, 2 or 3 and X is halogen, C 1 -C 4  alkyl, or NO 2 , the substituents X being the same or different when n is 2 or 3, and A is C 2 -C 4  alkylene. They are obtained by either (a) reacting a thiophosphate of the formula with a halide Hal-A-OR<SP>3</SP>, or (b) in those cases where R<SP>3</SP> is identical to R<SP>2</SP> and A is ethylene by reacting a mercaptan HSC 2 H 4 OR<SP>2</SP> in the form of a metal or ammonium salt thereof or in the presence of an acid binding agent, with an ester dichloride:-R<SP>1</SP>OP(O)Cl 2 . Each process is preferably carried out in an inert diluent or solvent including water and a variety of liquid organic compounds. The products have insecticidal, acaricidal and nematocidal properties and may be used as active ingredients in conventional pesticidal compositions.
Patent GB-1199284-A (GB)
Title: Slit polyolefin tapes and yarns produced therefrom
Inventor: PALMER GORDON
IPC: D01D5/42
Filed: 1966-11-23
Abstract: 1,199,284. Making slitted polyolefin tapes. COURTAULDS Ltd. 22 Nov., 1967 [23 Nov., 1966], No. 52431/66. Addition to 1,035,657. Heading B5B. The process of Specification 1,035,657 (wherein a polyolefine is melt-extruded to form a tape having closely spaced continuous ribs extending along the length of the tape, the ribs having cross-sections which are constant along their length and corresponding in magnitude to those of filaments of less than 80 denier, the tape is stretched and at least some of the webs connecting pairs of adjacent ribs are slit longitudinally at intervals along their lengths) is modified in that the polyolefine is melt-extruded to form a tape in which the cross-sections of the ribs correspond in magnitude to those of filaments of 80 denier or greater. The tapes, like those produced as described in Specification 1,035,657, have pairs of adjacent ribs connected to one another by a continuous web extending along the whole length of the ribs. The tapes may be converted into yarns by twisting. Staple fibres may be made by cutting the tape into short lengths. A yarn may be made by opening, carding and twisting short lengths of the tape. The slitting of the webs of the tape may be effected by combing the tape by drawing it longitudinally over a roller clothed with raked points, the roller being rotated in a direction such that the points move in the same direction as the tape and at such a speed that the points move more quickly than the tape, whereby the points pierce and slit at least some of the webs of the tape. Alternatively, the longitudinal slits in the webs of the tape may be formed by twisting the stretched tape, the tape having been stretched to such an extent that the webs become fibrillatable.
Patent GB-1491815-A (GB)
Title: Tape cassette
IPC: G11B15/22
Filed: 1975-12-22
Abstract: 1491815 Tape cassettes SONY CORP 22 Dec 1975 [24 Dec 1974 8 April 1975] 52447/75 Heading B8M A tape cassette T comprises a rectangular housing 1 of upper and lower sections 1A, 1B between which supply and take-up reels 4a and 4b are positioned, unwinding of tapes wound thereon being prevented when the cassette is not in use by means which apply forces to the reels tending to wind each in the tape winding direction. The unwinding preventing means comprise brake levers 21 and 22 acted on by torsion springs 30 and 27 respectively to engage hooks 33, 34 with ratchet gears 35, 36. The teeth of the ratchet gears are oppositely formed so as to exert the forces in the winding direction when engaged by the hooks 33, 34. The levers 21, 22 are coupled together at their outer ends and released by a brake releasing member (not shown) inserted through an opening 43 in the wall 1d of the cassette housing. Protecting members 15a, 15b, Fig. 1 (not shown) are received in recesses 16a and 16b for movement between a first position in which signals may be recorded on the enclosed tape and a second tape masking position in which recording is prevented.
Patent GB-1522689-A (GB)
Title: Organosilicone polymers and polyester urethane foam produced therewith
IPC: C08L83/12
Filed: 1975-12-23
Abstract: 1522689 Cyanoether polyoxyalkylene polysiloxanes; polyurethane foams UNION CARBIDE CORP 23 Dec 1975 [27 Dec 1974] 52561/75 Headings C3T and C3R A cyanoether polyoxyalkylene polysiloxane consists of monofunctional units R2R<a>SiO0À5 and difunctional units RR<a>SiO, wherein each R is an alkyl radical and each R<a> is R or a cyanoether radical -R<1>OR<11>CN or -OR<1>OR<11>CN, R<1> being a C3-8 and R<11> a C2-4 alkylene radical, or an organo-capped polyoxyalkylene block composed of at least 75 wt.% -OC2H4- units (preferably of formula -R<0>-(OCaH2a)bOG, where R<9> is a direct bond or an alkylene or alkylene -CO- or alkylene-NH-CO- group, the alkylene group attached to Si, a is 2-4, b 3-30 and 6 is the capping group), there being present per 2 monofunctional units 2-20 cyanoether groups, 2-30 polyoxyalkylene blocks, and preferably no more than 20 units R2SiO. It may be prepared by addition of an unsaturated or HO-terminated organo-capped polyether to the corresponding cyanoether hydrogen siloxane, or by addition of such a polyether and an unsaturated or HO-terminated cyanoether to an appropriate alkyl hydrogen polysiloxane. It may be used to stabilize polyester-polyurethane foams, added directly or with an organic acid, a glycol and a silicon-free surfactant in aqueous solution. In Examples 1-5 siloxanes Me3SiO (Me2SiO) 5-8 (MeHSiO) 10-13SiMe3 are prepared by equilibration and added to and giving products having 4 or 5 cyanoether and 6-8 polyether groups; in Examples 18 and 19 first then is added to or to give products having 7 or 3 cyanoether and 5 polyether groups. In Examples 16 and 17 two such polysiloxanes are blended (35 p.b.w.) with 35 p.b.w. Si-free surfactant, 15 p.b.w. tall oil and 15 p.b.w. hexamethylene glycol. In Examples 6-17 and 20-23 these products and mixtures are used in amounts of 0À35-1 p.b.w. to stabilize foams from a polyester polyol, N- ethylmorpholine, hexadecyl dimethylamine, water, TDI, and tris-chloroethyl phosphate.
Patent GB-1129260-A (GB)
Title: Improvements in or relating to antacid compositions containing silicones
IPC: A61K9/48
Filed: 1966-11-28
Abstract: 1,129,260. Antacid compositions. SMITH KLINE & FRENCH LABORATORIES. 28 Nov., 1966 [6 Dec., 1965], No. 53253/66. Heading A5B. An antacid composition comprises a mixture of two different types of granules, the first of which comprises an antacid e.g. MgO, Mg(OH) 2 , MgCO 3 , CaCO 3 , Al(OH) 3 , AlPO 4 , bismuth subcarbonate, magnesium trisilicate, aluminium oxyhyroxide or dihydroxy aluminium aminoacetate and the second of which comprises a liquid organopolysiloxane compound adsorbed on an inert filler e.g. lactose, mannitol sucrose, icing sugar or dextrose. Suitable organopolysiloxanes are liquid, oily or semi-solid organopolysiloxanes of the formula: in which R is C 1-5  alkyl or phenyl and n is 0-2000, e.g. methyl polysiloxanes of viscosity 250 to 1000 cs. at 25‹C. The granules may be tabletted or encapsulated after mixing in the desired proportions.
Patent GB-1304497-A (GB)
IPC: H03K17/975
Filed: 1971-11-17
Abstract: 1304497 Keyboards NORTHERN ELECTRIC CO Ltd 17 Nov 1971 [17 Dec 1970] 53254/71 Heading G4H [Also in Divisions B6 and H3] A capacitative keyboard switch has an electret sheet 14, Fig. 2, separating a fixed conductor 12 on a printed circuit board 11 from a movable conductor 17, the latter being a flexible conductive sheet, e.g. of silicone rubber. When a spring biased key 22 is pressed it moves a portion 18 of the conductor 17 towards conductor 12, so that the capacitance between them changes, and charge flows into a MOSFET and turns it on. An array of such switches is shown in Fig. 1, where a common silicone sheet is used, contact being made to it via the conductive body 15. As seen in Figs. 1 and 2 another fixed conductor 13 may be provided so that two circuits can be switched by one key. The capacitor formed is connected as in Fig. 3. When the key is pressed the charge flow due to the increased capacitance of the key conductors 12 and 17 and turns the MOSFET on; the MOSFET stays on for a period determined by its gate circuit time constant, Fig. 4 (not shown). The use of diode 36 prevents the MOSFET turning on again when the key is released. If desired the MOSFET may be triggered by the release as well as the depression by replacing diode 36 with a pair of back to back diodes. The key may activate as many circuits as desired by providing further fixed conductors on its printed circuit board. The matrix of keys may thus be used to control tone generators for push button telephone dialling, type writer keyboards or calculating machines.
Patent GB-1187413-A (GB)
Title: Improvements in or relating to Chart Recorders
IPC: G01D15/06
Filed: 1967-03-31
Abstract: 1,187,413. Recording apparatus. DOHRMANN INSTRUMENTS CO. March 31, 1967 [May 4, 1966], No. 53686/69. Divided out of 1,187,412. Heading G1J. A strip chart recorder comprises a frame 12 the side walls 13, 14 of which are formed with U-shaped slots 28, the frame being pivotally mounted in a framework 11 for movement between a normal position and a tilted out position, in which latter position a roll 26 of chart paper 29 can be readily loaded into the U-shaped slots. Studs 21 on the side walls 13, 14 engage stops 22 on the framework 11 to define the normal position of the frame 12 whilst the enegagement of the studs with stops 23 defines the tilted out position. The chart paper lies on a curved portion 18a of a front plate 18 which is screwed to a front wall 16 of the frame 12. A stepping motor 42 is screwed to the side wall 13 and drives a shaft 36 via a chain and sprocket arrangement 37-39. Sprockets 31, 32 fixed to the shaft 36 engage perforations 33, 34 in the chart paper to advance the chart. A pen 51 is slidably mounted on a pair of rods 52, 53 and a scale 58 is provided.
Patent GB-1450487-A (GB)
Title: A-galactosidase
IPC: A23L11/00
Filed: 1974-12-13
Abstract: 1450487 Soya milk NESTLE SA 13 Dec 1974 [1 Feb 1974] 53955/74 Heading A2B [Also in Division C3] Soya milk of reduced stachyose content and sugar beet juice of reduced raffinose content are obtained by treatment of the raw material with an α-galactosidase, obtained by culturing the mold Penicillium duponti, (Talaramyces thermophilus) in an aqueous medium containing at least on α D-galacto-pyranosyl band (see Division-C3).
Patent GB-1450783-A (GB)
Title: Perimetric instrument for determining the limits of the visual  field
IPC: A61B3/024
Filed: 1973-11-21
Abstract: 1450783 Sight testing F BARTOLI and L LIUZZI 21 Nov 1973 [21 Nov 1972] 54050/73 Heading G2J  An apparatus for determining the limits of the visual field comprises a perimetric background 1 illuminated by a variable light (2), see Fig. 1 (not shown), a laser 11 generating a band in the size range of the Š in width, a filter F for the laser beam, reflection and/or refraction means 10, or light-conducting means, e.g. optic fibres, directing the beam to a projector P which is articulated to a pointer 6 movable over a perimetric diagram 5.
Patent GB-1333757-A (GB)
Title: Dialling-pulse source for telecommunications systems
IPC: H04M1/30
Filed: 1970-11-13
Abstract: 1333757 Impulse transmitters COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 13 Nov 1970 [13 Nov 1969] 54110/70 Heading H4K An impulse transmitter for use in exchanges utilizing high speed D.C. impulse signalling, e.g. 1 msec. on, 1 msec. off, or, in exchanges utilizing normal D.C. impulsing, i.e. 33/66 msec., comprises a high pulse repetition rate, digit key controlled pulse generator whose output is applicable either directly, or indirectly via a pulse rate changing circuit, to line. The generator CPS is in the form of an MOS integrated circuit which provides elementary output pulses at a 2 KHz repetition rate. Depression of a digit key B1 ... B12 turns on the generator so as to cause a corresponding number of impulses to occur at its output S, this output being strapped to terminal S1 and hence directly to line when the transmitter is in the high speed mode. Each impulse of a digit is in fact made up of four elementary pulses whereby the required impulsing repetition rate of 500 Hz is obtained. Just prior to, i.e. 5 msec. before, pulse transmission, it is arranged that the loop current falls to about 20 mA so as to alert a register at the exchange. A 30 msec. interdigital pause is provided automatically. When working into a slow speed exchange the generator output is applied to input S2 of a memory MT. The latter brings up a relay TI to short circuit the subscriber's instrument (connected to leads CO) via resistive shunt R3 and thereafter operates impulsing relay I at the slow rate so that conventional impulses are repeated by impulsing contact i to line. The diode bridge D1-D4 prevents polarity reversals on the line from affecting the generator and memory (which may also be of the MOS type) circuitry. Capacitor C1 acts as an energy source for the periods when the loop is opened by the impulsing contact.
Patent GB-1176440-A (GB)
Title: Spark Plugs
IPC: H01T13/34
Filed: 1968-11-15
Abstract: 1,176,440. Sparking plugs; ignition systems. GENERAL MOTORS CORP. Nov. 15, 1968 [Dec. 1, 1967], No.54381/68. Heading F1B. A sparking plug has a third electrode 20 which has an end portion 36 arranged to form with the centre electrode 28 a second spark gap, and a resistor 38 connected in series with the third electrode so that a voltage impressed on the sparking plug initiates arcing, in the second gap, which ionizes gas in the main gap. The resistor may be in the form of an annular button. The ignition system may employ a coil having a 30 to 1 turn ratio which delivers about 8 kv.