baber/WOPTO huggingface dataset:
Patent GB-1391977-A (GB)
Title: Shaft and resilient thrust bearing arrangement
IPC: E21B4/02
Filed: 1972-10-13
Abstract: 1391977 Bearings SOC GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES [ALSTHOM] 13 Oct 1972 [15 Oct 1971] 47479/72 Heading F2A For absorbing shock due to relative longitudinal movement between a shaft 1, e.g. of a turbine-driven drill, and its housing 2, a thrustbearing assembly has thrust-transmitting members 3, 7 mounted (e.g. by interference-fit), on the housing 2 or the shaft 1 and thrust elements 5 bearing, through sliding surfaces 10, against the shaft-members or as shown, the housing-members in the longitudinal direction of the shaft 1; each member 3 co-acts with a member 7 displaced therefrom in the axial direction of the shaft and there is a resilient member 8 between each element 5 and a member 7 (there is also a further element 5 so interposed in the embodiment shown), so that the member 8 is compressed when there is a shock urging the longitudinally-spaced members 3 and 7 together. As shown, there are a number of these arrangements with spacing rings 4 and 6, the thrust elements 5 being annular and mounted on the latter, for rotation with them but for axial movement relative thereto and the arrangements interfitting so that each member 3 is radially aligned with a member 7 of an adjacent arrangement. The thrust-transmitting members 3 and 6 and the resilient members 8 are annular. The members 8 are elastomer rings or steel cup springs. Arcuate apertures 9 through the members 3 provide passage for the turbine-driving fluid. In a second embodiment, Figs. 4, 5 (not shown), there are rings of small cylindrical thrust elements (13) mounted in sockets, with small resilient elements (17), in each thrusttransmitting member (12) secured to the housing. Each ring of end faces (14) of the elements (13) slides on a surface of a thrusttransmitting member (15) secured on the shaft.
Patent GB-1434978-A (GB)
Title: Transmission of pcm-informationp
IPC: H04N7/26
Filed: 1973-10-11
Abstract: 1434978 Television TELEFONAKTIEBOLAGET L M ERICSSON 11 Oct 1973 [12 Oct 1972] 47633/73 Heading H4F In a compressed bandwidth, i.e. run-length encoded, PCM television video signal transmission system, prior to processing the PCM words representing successive picture elements in a run-length encoder, the PCM words corresponding to the odd lines (i.e. odd fields) are stored successively in two shift registers and read-out in the same shift direction as that in which they were stored, and the PCM words corresponding to the even lines (i.e. even fields) are also successively stored in the two shift registers but read-out in the opposite shift direction as that in which they are stored. At a receiver the received run-length encoded signal is processed to obtain the original PCM words and similarly stored in two shift registers, the PCM words corresponding to the even lines (i.e. even fields) being read-out in the opposite shift direction as that in which they were stored (i.e. in an inverted time sequence to compensate for the inversion effected during transmission). This system avoids blank areas which might otherwise occur along the right edge of the picture reproduced at the receiver when the lines of the PCM signal contain more than a given number of non-redundant picture elements. In the embodiment described a maximum number of 50 non-redundant picture elements may be transmitted per linesweep, there being 400 PCM-coded picture elements per line-sweep. According to the present invention for highly detailed pictures the degree of resolution along both edges of the reproduced picture is reduced. In the embodiment described each picture element is PCM encoded into a four bit word, and in the runlength encoding step a four bit word corresponding to the number of successive identical picture elements is transmitted before the picture element four bit word, the bit-timing frequency of the run-length encoded PCM signal being four times lower than the PCM encoding bit-timing frequency. The run-length encoding may be effected over field periods instead of line periods in which case the two shift registers are each provided with a storage capacity of a field rather than a line, the even fields being read-out in the opposite direction to that in which they were stored so that low contrast is produced at the top and bottom of high detail pictures instead of complete loss of information at the bottom thereof.
Patent GB-1203264-A (GB)
Title: Golf simulation apparatus
Inventor: RUSSELL J A
IPC: A63F7/06
Filed: 1967-10-19
Abstract: 1,203,264. Optical apparatus. BRUNSWICK CORP. Oct.19, 1967 [Oct.24, 1966 (3)], Heading G2J. [Also in Division A6 In an electric analog computing simulator for a golf game (Group G4) a projector Fig.11 (not shown) comprises a vertical tube clamped to a frame, containing a light source and condenser at one end and a lens system at the other, focusing upon a mirror 716 which is pivotable about mutally perpendicular axes Figs.12, 13, while an iris is interposed between the condenser and the lens system. A servomotor 740 is friction clutched to shaft 750 of feedback potentiometer 726 and to a cam 752 whose periphery engages a follower 754, which is cranked to vertical shaft 758 carrying the bight of a U-member 764 whose arms 766,768 carry bearings 772 of horizontal stub shafts 774 of a mount 776 of the mirror 716; a spring 777 biasing the cam follower and cam into contact. A further servomotor 780 has output shaft 782 friction clutched to wiper shaft 786 of feedback potentiometer 728 and to cam 784, engaging  follower 788 at the lower end of grooved pushrod 790 located by pivotal rollers 794; the pushrod vertically and reciprocally moving a knife edge 798 engaging a post 800 extending from the mirror mounting; with spring-loading 802 biasing cam and follower and knife edge and post into contact. A further servomotor 810 Figs.14, 15 is friction clutched to pinion 820 engaging gear 830 whose shaft 824 is connected to the wiper shaft of feedback potentiometer 828 and whose upper face is machined with a slot cam 832. The latter engages follower 840 carried by an arm 834 pivoted at 836 and operating a sector gear 842 meshing with gear 834 mounted on hollow sleeve 846, secured to drive the iris mechanism to regulate the size of the spot projected on the mirror; movement being limited by stop 850 acting against the friction clutch. Computed signals representing Sx, Sy, Sz (the corrected instantaneous displacements of the simulated ball in the X azimuth Y elevation and Z length senses) are applied to energize the twodimensional mirror servomotors and the iris servomotor in respective retro-active follow up circuits; and the mirror reflects a spot upon a projected scene representing that seen from the point at which the ball is driven off Fig.1 (not shown) so that a spot of diminshing size is displayed to represent in perspective the movement of the simulated driven ball. A similar projector without iris control is responsive to the X and Y displacements to project a spot of fixed size Figs.17, 18 (not shown) on to a plan of the hole Fig.16 (not shown) to indicate the simulated position of the ball during and after a drive. Specification 1,199, 327 is referred to.
Patent GB-1489625-A (GB)
Title: Suspended monorail conveyor systems
IPC: E01B25/24
Filed: 1974-11-04
Abstract: 1489625 Suspended monorail conveyer systems BECORIT GRUBENAUSBAU GmbH 4 Nov 1974 [2 Nov 1973] 47654/74 Heading B7L A suspended monorail conveyer system includes a track comprising rails 1 arranged endto-end and connected by lower and upper rail joints 12-15 and 16-18, respectively, permitting articulation of adjacent rails about a horizontal axis 11, two or more adjacent rails having rack bars 2 along their lower edges with laterally presented teeth to provide increased traction on gradients. The first and last rack bars in a series may extend over a part only of a rail to avoid starting or terminating a rack at a rail joint. The rail vehicle comprises motors 3 driving wheels 6 engaging the rail web and pinions 8 engaging the two-sided rack. The pinions 8 are driven through magnetic clutches.
Patent GB-998797-A (GB)
Title: Improvements in fire extinguishing compositions
IPC: A62D1/00
Filed: 1963-12-03
Abstract: Fire-extinguishing powders comprise an alkali metal bicarbonate as principal constituent and a water-soluble iron salt as anti-caking agent, e.g. in an amount equivalent to from 0,5 to 10% of the weight of the bicarbonate.  Preferably, the composition is prepared by adding a concentrated aqueous solution of the iron salt (especially ferric or ferrous sulphate), e.g. by spraying to the bicarbonate and drying.
Patent GB-1485505-A (GB)
Title: Microwave circuits with stripline
IPC: H01P1/20
Filed: 1974-11-04
Abstract: 1485505 Filters WESTERN ELECTRIC CO Inc 4 Nov 1974 [8 Nov 1973] 47668/74 Heading H1W A microwave filter comprises at least one dielectric resonator asymmetrically positioned with respect to a stripline in order to maximize the coupling between the stripline and the resonant TE 01  delta mode of the resonator. The resonators may be discs made of a barium titanate composition Ba 2 Ti 9 O 20  or of a lithium tantalate composition, these having desirable temperature coefficients of resonant frequency. The sign of this coefficient may be opposite to that of the dielectric substrate of the stripline or that of the filter housing, whereby temperature compensation is provided. In the multi-section filter of Figs. 4, 5, three resonant discs 41, 51, 61 rest on accurately-machined dielectric spacers 25 above a stripline conductor 44. The centres of the resonators are laterally displaced from the centre-line of the stripline. The resonators may be coupled, as shown, by striplines of length equal to an odd number of quarter-wavelengths at midband frequency. Alternatively, the stripline may be absent except at the input and output and the resonators directly coupled one to the next. The filter has a band rejection characteristic. A bandpass filter may be constructed by inserting the above-described filter in a waveguide dimensioned below cut-off for the operative frequency range. In such an arrangement, propagation is obtained only near the resonant frequency of the resonators.
Patent GB-1202296-A (GB)
Title: Improvements in cyclone separators
Inventor: WIKDAHL NILS ANDERS LENNART
IPC: B01D45/18
Filed: 1968-10-08
Abstract: 1,202,296. Cyclone separators. N. A. L. WIKDAHL. 8 Oct., 1968 [17 Oct., 1967], No. 47721/68. Heading B2P. In a cyclone separator for cleaning fibre suspensions the separated light fraction, i.e. the cleaned fibre suspension, is discharged through a central outlet member 3, e.g. having a venturishaped nozzle channel 4, in which partitions 5 are arranged, e.g. radially, to divide the outgoing fraction into a number of parallel flows, the partitions being joined by a central nave part 6 which projects beyond the outer end 8 of the member 3 so as to constitute a distance piece for defining a spacing between the end 8 and a casing 7 in which the outlet member 3 is mounted. This arrangement causes the outgoing fraction to be spread radially outwards without risk of the fibres becoming twisted due to whirl formations. The cyclone may have one or more tangential inlets 2. A number of separators may be arranged with their outlet members mounted in a common casing.
Patent GB-1329480-A (GB)
Title: Device for extruding synthetic material
IPC: B29C48/10
Filed: 1971-10-14
Abstract: 1329480 Cooling extrudate W KLEIN H KLEIN and G KLEIN [trading as BISCHOF & KLEIN KG] 14 Oct 1971 [17 Oct 1970] 47816/71 Headings B5A and B5B An extrudate, e.g. tube 4, is cooled by impingement of gas blown in the direction of extrusion through the annular orifice 9 of a blower ring 3 as it leaves the extrusion die 1 and passes between the diverging inner walls 24 of the ring, outside air being drawn into the gas through passageway 19 through the inner wall 24 of the ring to produce turbulence in the gas and greater cooling of the extrudate. In the embodiment air is blown through connections 6 and passes radially inwards through passageways 10 the width of which is adjustable by rotation of portion 17 of the ring which is screw-threaded at 18 into part 8. The air is deflected by L-section guide ring 11 into the gap 16 between the ring 3 and the tube 4 where it expands. The consequent pressure drop draws the tube 4 outwards and draws air through passageway 19 which is adjustable in width. (For Figure see next page.)
Patent GB-1422932-A (GB)
Title: Control apparatus
IPC: E05F15/00
Filed: 1971-10-16
Abstract: 1422932 Door control apparatus HERGA ELECTRIC LTD 16 Jan 1973 [16 Oct 1971] 48217/71 Heading E2M In a door control apparatus a flexible tube member 6 is mounted along the leading edge of the door 2 for showing an obstruction and to provide an air-pressure signal to de-energize a drive motor 4 when the tube member senses an obstruction or when the door reaches its closed position. The apparatus includes a bellows 20 which expands when a solenoid 22 is energised to create a sub-atmospheric pressure in a chamber 18a of a diaphragm-operated electrical switch 18 mounted to close contacts 18b and 18c to actuate a relay 24 and drive the door 2 towards its closed position. Should an obstruction be sensed by the flexible tube member 6 the air pressure signal is fed through a conduit 12 to the chamber 18a causing the diaphragm 18d to move upwardly and open the contacts 18b and 18c to de-energise the relay so that the contacts 24a open and the motor 4 stops. The operation of the safety system may be overriden by depression of a button 26.
Patent GB-1005733-A (GB)
Title: Polymerization of epoxide compounds
IPC: C08G65/26
Filed: 1962-12-21
Abstract: Solid polymers of vicinal epoxide compounds are prepared by contacting the epoxide or epoxides with a catalyst comprising either (a) a phosphate of a Group IIIb element having a surface area of from 75 to 700 square metal per gram, or (b) the product of the reaction of an alkoxide of a Group IIIb element containing 3 to 18 carbon atoms in the alkoxide group with a phosphorus-containing acid having the formula (R(OH)2P = O where R is OH- or a hydrocarbon radical which may contain from 1 to 18 carbon atoms, at a temperature in the range 20 DEG  to 150 DEG  C. The examples refer to use of catalyst (a) to polymerize propylene oxide, ethylene oxide, and a mixture of propylene and ethylene oxides, and to use of catalyst (b) to polymerize propylene oxide, styrene oxide, 1,2-epoxy-butane, ethylene oxide, and a mixture of ethylene and propylene oxides.ALSO:An alkoxide containing from 3 to 18 carbon atoms of a Group IIIBETA element, e.g. aluminium, boron, gallium, indium, thallium, soluble in an inert organic solvent, e.g. benzone, acetone, n-hexane, is reacted in a liquid medium with a phosphorus-containing acid R(OH)2P = O, where R is -OH or a hydrocarbon radical which may contain from 1 to 18 carbon atoms, e.g. alkyl, cycloalkyl, aryl, aralkyl, alkaryl, in at least 1: 1 molar ratio, to give a catalyst for polymerization of vincinal epoxides.  Suitable acids include orthophosphoric acid, methylphosphoric acid, ethylphosphoric acid, hexylphosphoric acid, phenyl-phosproric acid, alkyl-substituted-phenylphosphoric acid, cyclohexylphosphoric acid, alkyl - substituted - cyclohexylphosphoric acid. The alkoxide and the acid are reacted at a temperature between 20 DEG  C. and the boiling-point of the solvent until no further reaction product is formed.  The resulting precipitate is filtered off and dried in an oven at 110 DEG  F. or in vacuo.  The preferred alkoxide is aluminium isopropoxide. An example is given.ALSO:A catalyst for polymerization of epoxides is either (a) a phosphate of a Group IIIb element, e.g. Al, B, Ga, In, Tl, having surface area from 75 to 700 square metres per gram, or (b) the product of reaction in at least 1 : 1 molar ratio and in a liquid medium of an alkoxide of a Group IIIb element containing from 3 to 18 carbon atoms in the alkoxide group with an acid R(OH)2P=O, where R is OH- or a hydrocarbon radical which may contain from 1 to 18 carbon atoms. Catalyst (b) must contain at least 5% of carbon by weight of total catalyst.  Examples refer to preparation of catalyst (a) by calcination at 600  DEG C. of the gel produced by addition of 85% phosphoric acid to an aqueous solution of hydrated aluminium chloride, and preparation of catalyst (b) either by addition of 85% phosphoric acid to a benzene solution of aluminum isopropoxide, or by reaction of phenyl phosphonic acid with aluminium isopropoxide in ether solution.  The resulting precipitates are dried in vacuo at ambient temperatures.
Patent GB-1244355-A (GB)
Title: Determining blood prothrombin time
IPC: G01N33/49
Filed: 1968-10-14
Abstract: 1,244,355. Determination of prothrombin time; controlling mixing by viscosity. XEROX CORP. 14 Oct., 1968 [20 Oct., 1967], No. 48547/68. Headings B1C and B1X. Apparatus for use in determining the prothrombin time of a blood sample comprises a container 10 (Fig. 4) for the sample and for reagents, for example thromboplastin and calcium chloride originally stored in solid or liquid form in upper reagent storage chambers (20) (Fig. 2), a freely movable ferromagnetic member 24 in the container, a magnetic field source which may comprise magnet 100, means for example motor 94 for producing relative movement between the magnetic field source and the container, the intensity of the field source being such that on clotting of the sample its increased resistance causes relative movement of the ferromagnetic member 24 and the magnetic field source, and means which may comprise coil 104 rotating with magnet 100 and connected to slip-rings 106, 108 for producing a signal in response to the relative movement. In automatic operation, introduction of a metered amount of sample from a sample storage tape of the kind disclosed in Specification 1,218,747 or from a circular sample conveyor into a container 10 starts a timer and the end-point signal stops the timer, the prothrombin time for the sample being stored in a data storage device for read out when desired (Fig. 3 not shown).
Patent GB-1199585-A (GB)
Title: Substituted Amines, a Process for their Production and Compositions Containing them
IPC: C09G1/18
Filed: 1967-10-26
Abstract: 1,199,585. N,N - di - (triazinyl) - alkylamines. J. R. GEIGY A.G. 26 Oct., 1967 [27 Oct., 1966], No. 48705/67. Heading C2C. [Also in Division C5] Novel compounds of the general formula where R 1 , R 2 , R 3  and R 4  each represent an amino group substituted by one or two openchained, cyclic or heterocyclically substituted open-chained aliphatic radicals, or an unsubstituted or substituted, saturated 3-7 membered N-heterocycle which may contain further hetero atoms, which heterocycle is bound by way of a ring N-atom, R 5  is -N = C(R 1 )(R 2 ) or R 1 , R 2 , R 3  or R 4 ; and R 6 =H or C 1-4  alkyl, are prepared by reacting a compound of formula:- with where one of Y and Y<SP>1</SP> = F, Cl or Br and the other is -NH 2  or the radical of a primary or secondary open chain aliphatic amine, the reaction being performed in the presence of an acid-binding agent and, optionally, an inert gas and a solvent or diluent at 100-300 C. In the examples 2 - (1<SP>1</SP>,3<SP>1</SP> - di - n - octadecyl - guanidino) - 4 - n - octadecylamino - 6 - chloro - triazine and 2 - ethylamino - 4,6 - bis - n - octadecylamino - s - triazine are reacted to yield N - [2 - (11,31 - di - n - octadecyl - guanidino) - 4 - n - octadecylamino - s - triazinyl - (6)] - N - [2<SP>11</SP>,4<SP>11</SP> - bis - n - octadecylamino - s - triazinyl - (6<SP>11</SP>)]-ethylamine. N,N-bis-[2-(1<SP>1</SP>,3<SP>1</SP>-di-n-octadecyl - guanidino) - 4 - n - octadecylamino - s - triazinyl-(6)]-ethylamine is similarly obtained.
Patent GB-1326027-A (GB)
Title: Translucent signs
IPC: G09F15/00
Filed: 1970-10-14
Abstract: 1326027 Laminates UNIVERSAL LAMINATIONS Ltd 14 Oct 1970 [28 Oct 1969] 48796/70 Heading B5N A translucent sign comprises a first sheet of bristol or of clay coated paper having a thickness between À003 and À0065 inches before printing, and having an opacity between 88 and 98 before printing, and having a basis weight of between 120 and 240 pounds when said sheet is of coated paper and between 180 and 240 pounds when said sheet is of bristol, an image printed on said first sheet, said first sheet being laminated to a sheet of plastics or between two sheets of plastics, the total thickness of the sheet or sheets lying between 0À0015 and 0À010 inches. In the embodiment shown in Fig. 1, a printed paper sheet 2 is sandwiched between two plastics  sheets 4 and 6, each plastics sheet comprising a layer 4a, 6a of polyethylene and a layer 46, 66 of polyester.
Patent GB-1024765-A (GB)
Title: Improvements in or relating to the production of fuel elements for nuclear reactors
Inventor: ROLLING HEINZ EBERHARD
IPC: G21C3/64
Filed: 1962-12-28
Abstract: A cermet nuclear fuel comprises a fissile metal containing ceramic dispersed in an aluminium matrix, the matrix comprising an aluminium or aluminium alloy powder whose surfaces are nitrided.  The nitride layer is formed by treating the powder with nitrogen or ammonia, and is carried out at a pressure of 2 to 100 mm. Hg. at a temperature of 500-650  DEG C. for 2 to 8 hours.  The presence of oxide layers on the powder has no deleterious effect, nor does the presence of up to 30% oxygen in the nitriding atmosphere.
Patent GB-969294-A (GB)
Title: Air control device for rearwardly mounted engines
IPC: B60K5/00
Filed: 1962-12-31
Abstract: 969,294. Cooling engines. TATRA, NARODNI PODNIK. Dec. 31, 1962 [Dec. 29, 1961], No. 32650/61. Heading B7H. [Also in Division F1] In a motor vehicle having an air-cooled engine disposed in a compartment at the rear of the vehicle through which and through an outlet air is circulated by a cooling fan, there is disposed between the engine and the air outlet a scoop-like regulating flap pivoted about an axis normal to the centre line of the cooling fan so that its concave side is always presented towards the fan, the pivotal movement being controlled by a thermostat. As shown, an engine 2 with its cylinders in V arrangement is disposed in a compartment 1 at the rear of a vehicle through which and through outlet apertures 5 air is circulated by a fan 3 associated with each bank of cylinders, the air circulation being controlled by a flap 4 constructed as a pair of twin scoops with a connecting piece and being pivoted about pins 7 mounted in bearings 8. The flap 4 is connected by a link 9 to a lever 10 pivoted at 12 and connected to a thermostat 11 by a link 13 whereby operation of the thermostat moves the flap between the full line and broken line positions, Fig. 2.
Patent GB-1097099-A (GB)
Title: Improvements in powder-type fire extinguishers
Inventor: WOOD ROGER GRAHAM
IPC: A62C13/00
Filed: 1965-11-19
Abstract: 1,097,099. Fire extinguishers. GEORGE ANGUS & CO. Ltd. Sept. 14, 1966 [Nov. 19, 1965], No. 49335/65. Heading A5A. A fire extinguisher of the type comprising a container 10 to hold extinguishing powder, a head cap 12 which can be screwed on to the container, a gas cartridge 20 attached to 12 having a closure rupturable by striker 23 and a gas tube 22 mounted on 12 to conduct gas from 20 to the bottom of 10, is characterised in that both cartridge 20 and gas tube 22 are connected to a fitting 16 which can rotate in relation to head cap 12 when 12 is screwed into the container, thus minimising strain on the gas tube during assembly. In addition cartridge 20 may be provided with external fins, or gas tube 22 may be tied to 20 by tight fitting sleeve 27 provided with fins 28 to resist rotation.