baber/WOPTO huggingface dataset:
Patent GB-1487952-A (GB)
Title: Television signal recording and reproducing system
IPC: H04N9/797
Filed: 1974-10-08
Abstract: 1487952 Video recording systems MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 8 Oct 1974 [12 Oct 1973 (3) 28 Nov 1973 (5) 19 Dec 1973] 43607/74 Heading H4F In a system in which a television video signal is recorded on a magnetic medium each scan line of the video signal is sampled at m points. The samples are passed via m stores, which hold the samples for one line period, to the recording means which records the m samples on respective tracks. The use of a large number of tracks, e.g. m = 150, permits the use of low record speeds without loss of resolution. In one embodiment, Fig. 10, in which the samples relating to a line lie in a single row transverse to the direction of motion of the magnetic record, e.g. tape, the video signal at 16 is sampled at 17a m-times per line by clock pulses from unit 19 synchronized by unit 18 which extracts horizontal sync. pulses from the video signal. The samples are stored at 17b, which may be a capacitor store (Fig. 11, not shown). Under the control of pulses from unit 20 the stored samples are erased after being stored for 1 line period, and are also passed simultaneously via amplifiers 17c to 17m heads 9. Additionally a horizontal sync. pulse is recorded by head 11. During playback signals from the heads 9 pass via amplifiers 21 to store 22 under the control of a pulse derived by units 23, 24 from the head 11. The samples in store 22 are read out sequentially to output 30 under the control of clock pulses from oscillator 25. The output of oscillator 25 is also passed via frequency divider 26 for phase comparison with the sync. pulse from head 11 by comparator 27 which controls the tape capstan drive. If the video signal is a colour signal the arrangement shown in Fig. 13 is used. Filter 47 extracts the luminance signal and filter 49 the chrominance. The chrominance is mixed at 50 with a stable frequency to provide a modulated chrominance signal of about 1 MHz which is added to the luminance signal at 48, the sum signal feeding the circuit shown in Fig. 10. During playback comb filter 53 extracts the modulated chrominance signal and it is subtracted at 52 from the sum signal. After mixing at 54 the original chrominance signal is added to the luminance signal at 55 to provide the original colour video signal. To reduce the number of tracks needed each scan line may be sampled by, for example, 2m pulses. For each such line samples 1 to m are recorded across the tape by m heads, followed by recording the samples m+1 to 2m by the same heads (Figs. 14, 15, not shown). The sampling points in one frame of the raster may be displaced from those in the adjacent frames by half the distance between points for dot interlace as described with reference to Fig. 7b (not shown).
Patent GB-1029309-A (GB)
Title: Corrugated sheet material
IPC: F17C3/02
Filed: 1962-11-20
Abstract: 1,029,309. Liquifled gas storage containers. O. LORENTZEN. Nov. 20, 1962 [Nov. 23, 1961], No. 43785/62. Heading F4P. [Also in Division E1] A corrugated sheet more particularly for tanks in ships for liquefied gases has two sets of corrugations 11, 12 and 1, 2 Fig. 1 (not shown), at right angles, the depth of the corrugations 1, 2 being less than that of the corrugations 11, 12. The crests of the corrugations 1, 2 are sharp edges and the crests of the corrugations 11, 12 are flattened.
Patent GB-1127605-A (GB)
Title: Process for the manufacture of polyurethanes
Inventor: MARKLOW RAYMOND JOSEPH
IPC: C08G18/46
Filed: 1964-10-27
Abstract: 1,127,605. Polyurethanes. IMPERIAL CHEMICAL INDUSTRIES Ltd. 14 Oct., 1965 [27 Oct., 1964], No. 43820/64. Headings C3C and C3R. Polyurethanes are prepared by reacting an organic polyisocyanate with an hydroxyl groupcontaining polyester which contains in the molecule a group of the formula wherein n is 0, 1 or 2, optionally in the presence of a gas-generating agent. The polyester is suitably a reaction product of a polyhydric alcohol, a polycarboxylic acid and a compound of the formula R<SP>1</SP>-NH.CO.NH-R<SP>11</SP>, where R<SP>1</SP> and R<SP>11</SP>, which may be the same or different, are hydrogen, a hydroxyalkyl group, a hydroxyalkoxyalkyl group or a-CO.NH 2  or -CO.NH.Q group, where Q represents a hydroxyalkyl or hydroxyalkoxyalkyl group. Particularly suitable compounds containing the urea grouping are urea, methylol derivatives of urea and glycol ethers of the methylol derivatives and symmetrical bis(hydroxyalkyl) ureas. Conventional aliphatic, cycloaliphatic and aromatic polyisocyanates may be reacted with the polyester and the reaction may be carried out in the presence of water and/or low b.p. liquid blowing agents, tertiary amine and/or organic compounds of metals as catalysts, surface-active agents or organic solvents. In examples polyesters are prepared from (1) a formalin/urea reaction product, diethylene glycol and adipic acid, (2) urea, adipic acid and diethylene glycol, and (4) a urea/ethanolamine reaction product, diethylene glycol and adipic acid.
Patent GB-1108974-A (GB)
Title: Improvements in or relating to a load handling vehicle
IPC: B66F9/08
Filed: 1965-10-15
Abstract: 1,108,974. Masted lift trucks. HANS STILL, G.m.b.H. 15 Oct., 1965 [21 Nov., 1964], No. 43873/65. Addition to 1,015,975. Heading B8H. The mast assembly 5 of a lift truck is mounted on an intermediate frame 7 which is pivotable about an axis 10 on the truck body by an hydraulic ram 8 and on which the front wheels 9 of the truck are mounted. The front wheels 9 may be driven by an electric or hydrostatic motor on the frame 7 or on the truck body or, alternatively, the rear steering wheels 4 may be driven. The mast assembly may be movable transversely relative to, or together with, the frame 7.
Patent GB-1146679-A (GB)
Title: Improvements in wind motor propelled vehicles
IPC: B62D57/04
Filed: 1965-10-19
Abstract: 1,146,679. Wind motor propelled vehicles. J. A. CHILCOTT. 18 Oct., 1966 [19 Oet., 1965], No. 44122/65. Heading B7H. [Also in Divisions A6 and F1] A land or amphibious full-size or toy vehicle (see Division A6) includes a chassis, an upwardly projecting column 18 supporting a rotor which comprises a plurality of vanes 22, and is automatically maintained facing the wind as by a fin 27 and power transmission means between the rotor and chassis driving means 3 carried by the chassis. The power transmission means comprises a drive-shaft 17 which drives, through gearing and a horizontal shaft, sprockets (59) (Fig. 7, not shown), engaging the top run of the tracks (60) of an endless track vehicle, or one or both rear wheels 3 of a chassis with steerable or castoring front wheels 2. To reverse the vehicle the shaft 24 is movable axially to selectively engage the two bevel gears (29a), (29b) on it with the bevel gear (29c) at the top of the driveshaft (17) (Fig. 4, not shown) or a bevel gear (13) may be moved transversely of the vehicle to selectively engage bevel wheels (12) on the respective drive-shafts of the wheels 3. The vanes 22 may be of fixed pitch or of variable pitch adjusted either automatically by centrifugal weights or manually. The front axle 5 is mounted on a pivot pin (6) (Figs. 2, 4, not shown) and is held in a selected position for steering by a pin (8) engaging one of several holes 9 of the vehicle chassis. The pin (6) may be inclined in order to raise one of the rear wheels 3 from the ground when both are mounted on a rigid axle. The rotor may comprise (Fig. 6) a series of flat paddles 50 radiating from a shaft 51, half the area of the paddles being shielded from the incident wind by a shield 56. In a modification the paddle and shield axes are vertical. The column 18 may be replaced by a lattice framework or a grotesque figure.
Patent GB-964462-A (GB)
Title: Improvements in and relating to electric circuit-breakers
IPC: H01H33/70
Filed: 1962-11-23
Abstract: 964,462. Arc rupturing in switches. ETABLISSEMENTS MERLIN & GERIN. Nov. 23, 1962 [Nov. 27, 1961], No. 44339/62. Heading H2B. In a circuit-breaker, an arc damping resistor is constituted by a film of material of high negative temperature coefficient which is exposed to the heat of the arc. In Fig. 1 the electrodes 12 of each section of an insulating plate 11 arc chute are connected through a thin layer 15 of the material. An arc loop formed between the electrodes heats the layer to conduct and is thus shunted by a low resistance. In Fig. 7, separation of the contacts 16, 17 allows the passage of hot blast gases through a conduit 32, 35, the latter being lined with a layer of the material which is heated by the gases to shunt the contacts. In Fig. 3, the initial arc between contacts 16, 17 heats a layer 23 of the material until extinguished by the blast gas. An arc is restruck on recovery of the volts between each contact and the upper and lower ends of the now conducting layer 23. Since the initial arc no longer exists the layer cools, presenting a gradually increasing resistance in series with the secondary arcs until these are finally extinguished.
Patent GB-1270750-A (GB)
Title: Aluminum pressed metal link for a sewing machine
IPC: F16C7/02
Filed: 1970-09-17
Abstract: 1,270,750. Making drive links. SINGER CO. 17 Sept., 1970 [23 Sept., 1969], No. 44350/70. Heading B3A. [Also in Division F2] A sewing machine drive link comprises bearing portions at each end joined by a web portion and is formed of one integral metallic piece wherein the density of the web part is greater than that of the bearing portions. A link consisting of an alloy of 95À4% aluminum powder, 3% copper, 1% silicon and 0À6% mag. nesium to which 1À5% lubricant by weight is added is formed first into a compact using die pressures of 5 tons per square inch at the bearing portions and 15 tons per square inch at the web portion and then sintered. After sintering the parts are sized and coined pressures of 15 to 20 tons for the bearing portions and 50 tons for the web being used. After cleaning the parts are preferably impregnated with lubricating oil by soaking or vacuum and pressure treatments.
Patent GB-1419518-A (GB)
Title: Escape chutes
IPC: B63B27/14
Filed: 1972-09-26
Abstract: 1419518 Escape shoots DUNLOP Ltd 24 Sept 1973 [26 Sept 1972] 44513/72 Heading B7J A telescopic escape shoot has segments la  normally stored in the major segment pivoted to an elevated structure, the segments being of plastics, light metal or impregnated woods with the floors of a relatively rigid material compared with the walls and roofs. The shoot when extended being either automatically or manually pivoted about an axle 7d so that the segments move relatively outwards aided by inflation of pneumatic side tubes 5 and 6. A buffer 10 may maintain the shoot at 45 degrees to the structure and the axle be located in roller 7e mounted on the major segment by brackets 7f and located at its ends in brackets 7c supported on the structure by rubber or plastics pads 7b. A platform 2 at the lower end of the shoot may be inflated with tubes 5 and 6 to provide a mooring for life-rafts 3, 4.
Patent GB-1203247-A (GB)
Title: Rotary-piston vacuum pump
Inventor: PFAFF HANSEN
IPC: F04C29/00
Filed: 1967-10-03
Abstract: 1,203,247. Rotary-piston vacuum pumps. LEYBOLD-HOCHVAKUUM-ANLAGEN G.m.b.H. Oct.3, 1967 [Oct.29, 1966], No.44931/67. Heading F1F. A rotary-piston vacuum pump comprises a hypotrochoidal piston 14, elliptical when the transmission of gearing between the drive motor 12 and pump is 1:2, planetarily rotatable within a casing 10 having an inner periphery which is that of the envelope curve of the piston and includes oilconveying channels in the piston and its end-faces and means for circulating the oil. Oil from a sump (not shown) passes through a filter 52 and is circulated by a pump 30 via an axial bore 34 in the pump drive-shaft 18 to junctions 36, 40, 44 from whence it flows radially and axially through ducts in the piston and its end-faces to lubricate between the shaft 18 and a fixed pinion bore, the teeth of the pinion and co-operating ring gear teeth, the end-faces between the piston and casing and the eccentric on which the piston rotates. Excess oil is returned to sump through channels 48.
Patent GB-1156735-A (GB)
Title: Improvements in or relating to Spring Frameworks.
IPC: A47C7/35
Filed: 1967-10-03
Abstract: 1,156,735. Spring upholstery. P. A. RENTROP G.m.b.H. 3 Oct., 1967 [28 Oct., 1966], No. 44968/67. Heading A4M. [Also in Division F2] A spring core for seats comprises a lower frame 5 supporting coil springs 2, 3, sinuous springs 6 extending between laterally opposite pairs of coil springs 2, 3, an upper frame 7, links 2a, 3a extending outwardly from the upper ends of the coil springs 2, 3 and links 6a extending outwardly from the ends of the sinuous springs 6 and passing outside the contour of the coil springs 2, 3, the links 6a and 2a, 3a merging into each other and being clamped to the upper frame 7 at their transition point. Further coil springs 1 are disposed at the front and rear edges. The links 2a, 3a extend upwardly and outwardly. Adjacent springs 2, 3 and laterally opposite springs 2 or 3 are of opposite hand.
Patent GB-1162228-A (GB)
Title: Process for Coating Fibrous and Filamentary Substrates
IPC: D06M15/59
Filed: 1966-10-07
Abstract: 1,162,228. Polyamide coated fibrous substrates. J. W. S. NOMINEE CO. Ltd. 7 Oct., 1966 [9 Oct., 1965], No. 44993/66. Heading B2E. [Also in Divisions C3 and D1] A process for coating a fibrous or filamentary substrate comprises reacting a diamine and a dicarboxylic acid ester in a liquid medium thereon. Specified substrates are keratinuous fibres e.g. wool, cotton and silk, slivers, yarns, combings and knitted or woven fabrics made therefrom and paper and cardboard. The reaction is preferably effected under interfacial conditions, the diamine being in aqueous solution and the ester in an aqueous emulsion. The reactants may be applied to the substrate separately or as an aqueous emulsion thereof. Specified diamines are hexamethylene, ethylene and trimethylhexamethylene diamine. Specified esters are bis-thiophenyl, bis-thiocreyl, bis-p-nitrophenyl, bis-o-nitrophenyl, bisp-nitro thiophenyl, bis-2, 4, 5-trichlorophenyl, bis-N-succinamide, bis-N-phthalimide, bis-cyanomethyl and dimethyl sebacate. The examples describe the treatment of a knitted tubular Woollen article.
Patent GB-1069043-A (GB)
Title: Flexible clad nuclear fuel element
Inventor: ZEBROSKI EDWIN LEOPOLD
IPC: G21C3/06
Filed: 1963-11-15
Abstract: 1,069,043. Fuel elements. GENERAL ELECTRIC CO. Nov. 15, 1963 [Dec. 26, 1962], No. 45295/63. Heading G6C. The fuel rod 90 is formed of fuel pellets 100 encased in tube 98 which is provided with fins, or folds, 114. The tube 98 is sealed by plugs 102, 104 and includes the space 110 which permits expansion of the fuel and retains the fission gases. The spring 112 supports tube 98 against external pressure. Rods 90 are arranged as an assembly in channel 80 through which coolant may flow from openings 88 to outlet 86. The fuel surface may be corrugated and the tube shaped to fit.
Patent GB-1020819-A (GB)
Title: N-substituted tetrahydrothiazine dioxides and process for preparing them
IPC: C07D291/06
Filed: 1962-11-30
Abstract: The invention comprises compounds of the general formula <FORM:1020819/C4-C5/1> in which R represents an alkyl, cycloalkyl, aralkyl or aryl radical, which may be substituted (see also Division C2).  In examples: (12) aqueous formaldehyde and formic acid are reacted with the compound <FORM:1020819/C4-C5/2> to give the compound <FORM:1020819/C4-C5/3> (20) 4 - bromo - 1 - aminoanthraquinone - 2 - sulphonic acid and N-(41-aminophenyl)-tetrahydro - oxathiazine - (1,4,5) - dioxide - (4,4) are reacted together to give the compound <FORM:1020819/C4-C5/4> (21) compounds in which R is an aminophenyl or aminobenzyl radical are diazotized and then coupled to give various yellow dyestuffs used on polyester materials.ALSO:The invention comprises compounds of the general formula <FORM:1020819/C2/1> wherein R represents an alkyl, cycloalkyl, aralkyl or aryl radical, which may be substituted. The compounds are prepared by reacting a compound of the general formula R-NH-SO2-CH2-CH2-OH-(2) which may be esterified with a mono- or poly-basic acid, and in which R is as defined above, at a temperature in the range of about 20 DEG  to about 120 DEG  C. with formaldehyde in the presence of an acid having a first step dissociation constant of at least 10-4. Compounds of Formula (1) above in which R represents an aminophenyl radical may be prepared by reduction of the corresponding compounds in which R represents a nitrophenyl radical.  Examples are given.  In Example 17 the compound of Formula (1) above in which R is p-nitrobenzyl is obtained by nitration of the corresponding benzyl compound.  Examples 17 and 18 also describe the preparation of starting materials of Formula (2) above.
Patent GB-1007390-A (GB)
Title: Production of improved polyester filaments
Inventor: MEAD EDWARD JAIRUS
IPC: C08G63/695
Filed: 1963-11-18
Abstract: Polyesters, suitable for making filaments, are made by chemically combining a glycol terephthalic acid polyester with a silane of formula R1aSi(AY)x(OR)y where R and R1 are monovalent organic radicals, Y is a divalent organic radical, A is a hydroxy group or carboxylic ester group, y is 1 to 3, x is 0 to 2, x + y is 2 to 4 and a is 4 - x - y; said silane being present in an amount corresponding to at least 0.001 silicon atoms for each dicarboxylate radical.  The silane is either added either during the stage at which the polyester is being prepared in the presence of a polycondensation catalyst that does not contain silicon.  In the example, an ester-exchange reaction was effected between dimethyl terephthalate and ethylene glycol and the product polycendensed in the presence of antimony trioxide, phosphoric acid, titanium dioxide and a silane falling within the above formula.
Patent GB-1361790-A (GB)
Title: Electric signal storage device
IPC: G11C27/02
Filed: 1971-09-30
Abstract: 1361790 Semi-conductor analogue stores INTERNATIONAL STANDARD ELECTRIC CORP 30 Sept 1971 [2 Oct 1970] 45525/71 Heading H3T A waveform 5, Fig. lb, to be lowered in frequency, has successive portions sampled and stored at 8, Fig. 2, on respective capacitors (not shown) in a relatively short time, and these stored signals are then scanned over a longer read-out period during which progressive unwanted discharge of the capacitors is compensated by combining the scanned output with a sawtooth signal from 14. Because the stored samples tend to discharge towards some non- zero level 3, Fig. 1b, the mean level 4 of the scanned waveform becomes progressively further removed from zero 4, Fig. 1c, while the envelope of a train of oscillations of the stored waveform tends to converge toward this mean level between the beginning of each read-out period 5a, 5b and the end 6a, 6b. A generator 12, Fig. 2, connects a switch 9 to a high-frequency source F T  in the sampling (read-in) period and to a low-frequency f r  source during read-out, and also controls the integrator 14. The sawtooth from 14 is first added at 13 to the read-out signal to compensate the variation in mean level 4, after being controlled in amplitude at 15 by a control circuit 22. The sawtooth is also used at 16 to modulate the read-out signal to remove the variations in oscillation amplitude (envelope) 5a, 5b, &c., after being controlled in amplitude at 17 by a control circuit 23. Both control circuits receive a signal from C19 and from C21 derived by sampling at 18, 20, the read-out signal at the beginning and end of the read-out period. Control circuit 22 integrates these signals and compares them to give the mean level correction signal. Control circuit 23 full-wave rectifies them, integrates the resultant signals at 39, 40 and 41, 42 and compares the integrals to control the envelope. Switches 18, 20 are operated by a delay circuit (not shown) from generator 12 to avoid hunting. Isolating MOST's may be included in the outputs from C19, C21 to the control circuits.
Patent GB-1118287-A (GB)
Title: Process for converting polyalkylated phenol to obtain a phenol
Inventor: DEDINAS JONAS
IPC: C07C37/50
Filed: 1965-10-28
Abstract: Polyalkylated phenols are dealkylated in absence of a catalyst by reaction with at least 2 mols. H2 at 482-871 DEG  C., the reaction being terminated at no more than 80% conversion. In an example, phenol and o- and m-cresols are obtained from cresylic acid.
Patent GB-1176503-A (GB)
Title: Improvements in and relating to conveying apparatus
IPC: B21B43/10
Filed: 1967-10-06
Abstract: 1,176,503. Rolling. SECIM. 6 Oct., 1967 [6 Oct., 1966], No. 45676/67. Heading B3M. [Also in Division B8] Conveying apparatus for bars, suitable for use as a rolling mill cooling bed, comprises pairs of staggered, freely rotatable, discs 1 and 2 between which links 6 are movable to transfer bars progressively across the discs (Figs. 4-7, not shown). The bars are progressively rotated as they are conveyed over the discs. In one form the links 6 are carried on pins 7 whose ends are provided with rollers 8 engaging with guide rails. Alternatively, the links may be attached to chains 11 and 12, Fig. 8. The chains are suitably reciprocated to move bars 3 across the discs, the links on their return movement passing beneath the bars.
Patent GB-946609-A (GB)
Title: Fire retardant acoustical tile
IPC: E04B1/94
Filed: 1961-12-21
Abstract: A fire-resistant acoustical tile consists of granulated mineral fibres and a binder which includes non-swelling clay material in an amount not less than 12% by weight of the mineral fibre. The granular mineral fibre is defined as mineral wool or glass wool in the form of granules or separate tufts, the size of which is such that 100% will pass through a  inch mesh and 0-20% will pass through a No. 4 U.S. mesh.  The nonswelling clays are kaplinite, talc, chrysotile, and ball clay.  The binder may additionally include starch, boric acid, paraffin wax, and sodium hexametaphosphate.  The clay is pulverised so that the particles are about 2.14 to 5.72 microns in length and width and the thickness is about 1/10th of the length or less.  A mixture of clay, boric acid, starch, and sodium hexametaphosphate in water at 150 DEG F. is slowly added with stirring to a mixture of paraffin wax in water at 205 DEG F.  More water is then added and the whole mixture kept heated at 185 DEG F. until the viscosity of the mixture is 1000-2000 centipoises at 170 DEG F.  The binder is mixed with the mineral wool and this mixture is fed into paper lined platens and levelled with a reciprocating screed bar.  The moulded slabs are air-dried and then placed in a drying oven where drying takes place in four separate zones.  Details of the proportions of the various constituents used and temperatures employed in drying are given.
Patent GB-992476-A (GB)
Title: An electrical conductor splice
Inventor: BAINES JOSEPH CHARLES STAFFORD
IPC: H01R4/50
Filed: 1963-11-20
Abstract: 992,476. Cable and wire couplings. J. STONE & CO. (DEPTFORD) Ltd. Nov. 20, 1963, No. 45862/63. Heading H2E. Two conductors 22, 24, Fig. 1, may be connected by means of an elongated body member 4, the conductors being accommodated side by side in grooves 6, 8, Fig. 2, on the underside of the body and being bent around the curved ends 18, 20 of the body and clamped to the top surface 12 by a U-shaped member 52 which is held in position by a pin 60, locked by pin 64. The grooves 6, 8 have ribs 26 . . . 32 which fit into grooves 34 . . . 40 in the sides of the conductors. The ends of the conductors are bent upwards and backwards as in Fig. 1 to prevent any slipping. An alternative form of body is described, Fig. 5 (not shown), as is a special tool to assist the fitting of the clamp.