baber/WOPTO huggingface dataset:
Patent GB-1416603-A (GB)
Title: Electrophotographic recording material and processes for its  manufacture
IPC: G03G5/06
Filed: 1973-04-24
Abstract: 1416603 Dyestuffs HOECHST AG 24 April 1973 [26 April 1972 31 July 1972 (4) 14 Aug 1972 (2) 30 Aug 1972 (3) 21 Sept 1972 (3)] 19298/73 Heading C4P [Also in Division G2] The compound of formula (4,5 - dichloronaphthoylene benzimidazole) is made by condensing o-phenylene diamine and 4,5-dichloronaphthalic acid anhydride. A quinonyl diazo naphthylene derivative of formula is made by forming a diazonium salt from 6- amino-4,5,8-trimethyl-2-hydroxy quinoline and. coupling it with 5-(2<SP>1</SP>,3<SP>1</SP>-hydroxynaphthoylamino)benzimidazolone. The compound of formula can be made in an analogous manner. A trisazo derivative of formula is made by forming a diazonium salt of 4,4<SP>1</SP>- diamino - 2,2<SP>1</SP> - dichloro - 5,51 - dimethoxyazobenzene and coupling it with 1-phenyl-3- methyl pyrazolone. Compounds wherein the phenylene nuclei may be substituted by a methyl group or two chloro or methoxy groups may be made in an analogous way. The benzoxanthene derivative of formula is made by the reaction of 10-methoxy benzoxanthene 3,4-dicarboxylic acid anhydride with 3- aminopyrene. A trisazo derivative of formula wherein R 9  and R 10  are methoxy and R 11  and R 12  are chloro, is afforded by coupling the diazonium salt of 4,4<SP>1</SP>-diamino-2,5<SP>1</SP>-dichloro-5,2<SP>1</SP>- dimethoxy azobenzene with acetoacetanilide. The compound wherein R 9  and R 11  are chloro, R 10  is methoxy and R 12  is methyl, can be made in a similar way. A diazomethine of formula is formed by the reaction of 4,41-diaminodiphenyl ether or with dimethylamino benzaldehyde in dimethyformamide. The perylene derivative of formula where R is pyenyl is made in Example 13 by heating perylene-3,4,9,10-tetracarboxylic acid and 3-amino-pyrene in a mixture of quinoline and concentrated sulphuric acid. Dioxatetra-aza-pentacenes of formula wherein R 1  is H are formed in Example 46 from 1,4 - dihydroxy - cyclohexa - ,1,4 - diene - 2,5- dicarboxylic acid ethyl ester and 2-aminopyridine to give tetrahydro compounds of formula which are subsequently boiled under reflux in a mixture of nitrobenzene, glacial acetic acid and piperidine to yield the pentacene.
Patent GB-628672-A (GB)
Title: Improvements in or relating to doffing apparatus for ring spinning and like frames
IPC: D01H9/02
Filed: 1947-07-19
Abstract: 628,672. Doffing arrangements for spinning and like machines. BRITISH COTTON INDUSTRY RESEARCH ASSOCIATION, GREGORY, J., FOSTER, G. A. R., and CATLING, H. July 19, 1947, No. 19399. Addition to 597,887. [Classes 120 (ii) and 120 (iii)] The apparatus described with reference to Figs. 24 and 24A of the parent Specification is modified by means for rotating the cam shaft X comprising a friction clutch member f, continuously driven by a chain sprocket f2, and a clutch member e, slidably keyed to a shaft c and normally urged by spring d against member f. Spring d is enclosed within a worm b fixed to the shaft c and, when the clutch members are engaged, drives a worm wheel a on the cam shaft X. The clutch members are engaged, under the influence of the spring d, when a hooked link i draws down a lever h to free a peg a<SP>1</SP> on the worm wheel a and disengaged when the wheel a has made one revolution and peg a<SP>1</SP> abuts against a shoulder h<SP>2</SP> on the lever h.
Patent GB-570818-A (GB)
Title: Improvements in or relating to seats, sofas and the like
IPC: A47C1/03
Filed: 1943-11-20
Abstract: 570,818. Drop-end settees, &c. MILLS, C. R. Nov. 20, 1943, No. 19432. [Class 52 (ii)] In drop-end, &c., settees (e.g., as in Specification 409,781) in which hand pulling on a lug 11 rocks a bar 2 about fixed pivots 8 so that the holes in plates 3 on the bar 2 free themselves from substantial frictional engagement with the struts 4 supporting the settee end or back 5, the whole lower unit 2, 3, 7, 8, 9, 11 is first made up as an assembly which can thereby be easily fitted by securing the brackets 7 to a fixed part 6 of the settee. The plate 9 has a depending eye 10 for attachment of a spring, the other end being fixed to the settee thereby holding the bar 2 in axially inclined frictionally engaged position with the struts 4.
Patent GB-220649-A (GB)
Title: Improvements in catalytic production of hydrogen
IPC: C01B3/16
Filed: 1924-08-16
Abstract: Artificially-prepared catalytic materials for use in the manufacture of hydrogen by interaction of steam and carbon monoxide are given the form of tablets by compressing the material in the dry state and in the absence of a binder.  According to the examples, (1) a small proportion of potassium bichromate solution is mixed with a solution of iron nails or borings in nitric acid and ground magnesite is added in excess to form a mud which consists substantially of iron hydroxide precipitated in magnesite; the product is dried, ignited to a temperature of 700 DEG  C., crushed, and pressed into the form of tablets, preferably having a cylindrical peripheral surface and two convex faces; (2) iron nails are dissolved in a slight excess of nitric acid and the solution poured into aqueous ammonia; the precipitated iron hydroxide is dried, ignited to a temperature of 500 DEG  C., and compressed into tablet form.  The Specification as open to inspection under Sect. 91 (3) (a) is not restricted to the treatment of artificially-prepared catalytic materials and contains an example according to which haematite and magnesite are mixed to a paste with caustic potash solution, the dried paste then heated by degrees up to a temperature of 715 DEG  C., and the product pressed into tablets.  The use of catalytic materials in tablet form is also set out to be of general application.  In addition, the Specification describes the admixture of a certain amount of water or other liquid or of vaporizable or combustible materials, such as ammonium carbonate and sugar, with the catalytic material prior to compression.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1459387-A (GB)
Title: Radiant energy tracking system
IPC: G01S3/786
Filed: 1965-05-07
Abstract: 1459387 Optical tracking PHILCO-FORD CORP 7 May 1965 19478/65 Heading H4D The invention relates to a system for tracking a missile emitting infra-red radiation modulated at a predetermined frequency, the system being unaffected by atmospheric shimmer. As shown, the incoming signal from a modulated infra-red missile source is focused by a lens 11 to form a missile image 12, this image being nutated in a circular path about the optical axis 10 by a pair of optical wedges 13, 14 rotated by a drive control 15. The field of view is governed by an adjustable stop 9. When the missile is on the axis 10 the centre of the circular path is also on the axis whereas displacement of the missile causes the path centre to be displaced. A radiant energy detector 17 disposed in the focal plane 21 has four detector surfaces A, B, C, D, each supplying signals to a summing matrix 18 providing pitch and yaw signals at terminals 19, 20 indicative of the missile position relative to the axis 10. When the missile is on axis 10 the circular path is symmetrically disposed on the surfaces A, B, C, D, so that the length in time the target signal resides on each of the surfaces is equal and four pulses of equal duration are supplied to the summing matrix 18. However, displacement of the target causes the circular path to be asymmetrically disposed on the surfaces A, B, C, D, and pulses of unequal duration are supplied to the summing matrix. The electrical circuit of the summing matrix is described with reference to Fig. 5 (not shown) and includes means responsive only to signals within a frequency band centred on the modulation frequency of the missile infra-red source so as to derive unidirectional signals of amplitude independent of the brightness of the missile image 12 and representing the amount of the pitch and yaw deviations from the axis 10.
Patent GB-683324-A (GB)
Title: Improvements relating to the coupling of electrical circuits
Inventor: WARMAN BLOOMFIELD JAMES
IPC: H04M5/06
Filed: 1950-08-04
Abstract: 683,324. Exchange systems. SIEMENS BROS. & CO., Ltd. July 27, 1951 [Aug. 4, 1950], No. 19546/50. Class 40 (iv). An operator's position when vacated is coupled to an adjacent occupied position, preference being given to the position or positions on the left of the vacated position. As shown, when the operator's set is plugged in at position C, for example, the position relay PC is energized and any connecting circuit such as CC can be connected to the position circuit by the operation of relay S under control of the speaking key SK. The position relays PA ... PD control coupling relays CUA . . . CUD in such a way that if position C is vacated it becomes coupled to B, if occupied, by the operation of CUC, or, if B is also vacant, to D by the operation of CUD. Thus an occupied position can be coupled to a vacant position on either or both sides of it, the couplings being indicated by lamps LHC, RHC. In a further arrangement, if the positions on both sides of a vacated position are also vacant, it becomes coupled to the position next but one on the left, and four adjacent positions can thus be coupled together.
Patent GB-139239-A (GB)
Title: Improvements in the method of and process for hydrogenating oils
IPC: C11C3/12
Filed: 1918-11-27
Abstract: 139,239. Martin, G. Nov. 27, 1918. Catalytic apparatus; hydrogenized oils, catalytic production of.-The invention provides for the addition to the apparatus described in Specification 129,461 for the hydrogenation of oils, fats, and waxes, of a preheating-vessel, and of a tank for oil charged with catalyst. Before admission to the reservoir 7 for the hydrogenation treatment, the oil and catalyst from tank 2, after being warmed to the temperature of the preheater 1, is made to mingle in the pipe 4 with the oil from the preheater 1.
Patent GB-641253-A (GB)
Title: Improvements in or relating to adhesive applying apparatus
IPC: B65B51/02
Filed: 1947-07-22
Abstract: <PICT:0641253/III/1> <PICT:0641253/III/2> <PICT:0641253/III/3> An adhesive applying apparatus comprises a container carrying adhesive, an adhesive transfer means which is moved bodily in and out of the adhesive, and an adhesive applicator means which is moved into contact with said transfer means when out of the adhesive, thus transferring adhesive from the transfer means to the applicator means.  In the application of adhesive to bags in a bag-closing machine such as those described in U.S.A. Specifications 2,175,557 and 2,256,526, the bag 10 (Fig. 2), having shoulders 14 and folded neck 12 has adhesive applied to the shoulder 14 after which shoe 16 is moved to fold the neck 12 into contact with the adhesive on shoulder 14.  Tray 38 (Fig. 3), heated by heaters 50 and 52, contains the adhesive.  Shaft 62 with hubs 64 and 66 and supported by brackets 58 and 60 carries a plate-like structure including plate 68 shown in Fig. 1.  This plate carries two sets of fingers 70 and 76.  The rearward set 70 may be closely spaced and of alternately differing lengths.  The forward set of fingers 76 are at right angles to set 70.  Rotation of hub 66 causes the agitator fingers 70 to mix the adhesive and moves transfer fingers 76 into and out of the adhesive. Hub 66 carries lever 78 pivoted at 80 to link 82 which passes into pivoted sleeve 84 on lever 86 pivoted at 88 to frame 24.  Collar 90 and spring 92 urge link 82 upwards.  Roller 94 pivoted on stud 96 of lever 86 is operated on by cam 98 on shaft 100.  This cam imparts reciprocating motion to link 82, thus swinging fingers 70 and 76 above shaft 62.  The cam 98 carries two dowells 102, maintaining fingers 76 in the full line position of Fig. 1, and 104, holding both sets of fingers immersed in the adhesive.  Shaft 106 mounted on frame 24 is rocked to and fro carrying applicator device from over the tray 38 into contact with a bag.  Shaft 106 carries arms 108, 110 (Figs. 1 and 3) on which are freely pivoted members 114 and 116 joined by cross-bar 146 to which applicator head 150 comprising a plurality of fingers 152, is fixed.  Member 114 is linked via pin 120, link 124 and stud 132 to lever 134 carrying a roller 138 operated by cam 140 having two dowells, one holding the applicator in contact with the transfer fingers and the other in contact with a bag.
Patent GB-1393091-A (GB)
Title: Packaging
IPC: B65D30/08
Filed: 1971-06-09
Abstract: 1393091 Laminates IMPERIAL CHEMICAL INDUSTRIES Ltd 30 May 1972 [9 June 1971 8 Dec 1971] 19670/71 and 56954/71 Heading B5N [Also in Divisions B8 and D1] Laminated packaging material comprises a laminar formulation sheet including a base sheet melt laminated to a layer of thermoplastic material from which fibres or fibrils extend and are integral with the said layer, the fibres or fibrils being sandwiched between the base sheet and a second sheet to which the foundation sheet is bonded by heat softening of the thermoplastic material. The base sheet may be, e.g. of regenerated cellulose, metal mesh or foil, woven or non-woven textile material (e.g. nylon), paper, cardboard or polyurethane foam and the thermoplastic material may have the fibres or fibrils drawn therefrom in the manner described in Specification 1,384,707. Specific thermoplastic polymeric materials that may be employed are polyethylene, polypropylene, nylon, polyethylene terephthalate and P.V.C. Two layers of the material may be secured together by some or all edges to form bags, envelopes &c. The material may be in the form of a quilt with spaced localized securing of the foundation sheet to the second sheet. The second sheet may be of polyethylene or may be similar to the foundation sheet so that the material has the fibrils facing each other, such a laminate being formed, e.g. by folding.
Patent GB-1489138-A (GB)
Title: Multiple particle type interaction isotopically selective ionization
IPC: G02B27/00
Filed: 1975-05-12
Abstract: 1489138 Separating isotopes JERSEY NUCLEAR-AVCO ISOTOPES Inc 12 May 1975 [13 May 1974] 19847/75 Heading H1D In a method of separating isotopes, e.g. of uranium, by isotope-selective photo-excitation, a vapour of uranium atoms is irradiated with suitable laser radiation to raise only the U 235  atoms to a state just below the ionization level, typically 0À03 ev below, the ionization being effected by collisions of the excited atoms and, other particles in the ionization chamber, e.g. other atoms or electrons resulting from the evaporation of uranium by an electron beam furnace. Collection of the ionized atoms is effected in the conventional way by the action of combined electric and magnetic fields. The excitation can be in three stages using laser radiation in the red and red-orange regions of the spectrum. The vapour can be at a pressure of 10<SP>-5</SP> torr anv a uranium vapour density of 10<SP>13</SP>-10<SP>14</SP> atoms/c.c.
Patent GB-1329781-A (GB)
Title: Electric battery terminals
IPC: H01M50/553
Filed: 1971-06-10
Abstract: 1329781 Welding by pressure E S B Inc 10 June 1971 [22 June 1970] 19932/71 Heading B3R [Also in Division H1] A cylindrical antimony-lead post 19, connected to the plates of a lead-acid car battery is supported in a socket 52 in the polypropylene of hard rubber casing 42, 44. A tool 62 mounted in a drill press supports a terminal insert 58 on a combined drill and tap, and, when the insert is rotated and pressed down onto the casing 44, the member breaks through the casing, and a friction weld is formed between the post 19 and the insert 58, together with a threaded hole 74; Fig. 4. A sharped edged collar 66 engages the casing 44, and cylindrical or spiral projections 72 on the post 19 provide further anchoring. Upon assembly the top of the post 19 may remain separated from flange 36 of the insert, the casing being anchored between them, Fig. 6 (not shown), and the insert may have a lead plated brass bushing (82), Fig. 5 (not shown), internally threaded, with slots to engage the heat softened cover material. The insert may have embedded in it a drill point (92), Figs. 7, 8 (not shown), of hardened steel, and a tapered external electrical contact surface (94), which, during assembly serves as a coupling to the rotating member (96). Either the post 19 or socket 52 may be treated with hot melting compound (98) (100), Fig. 9 (not shown), comprising wood resin, paraffin wax and ethylend isobutyl acrylate to seal the assembly and to act as a welding flux. In Fig. 9, (not shown), a termination is made in the side wall of a battery casing. A friction weld connection may be made to the lead alloy central current collector (18), Figs. 1, 2 (not shown), of a cell comprising a metallic container (12) supporting lead sponge (10), a cup shaped separator (14) of polypropylene felt, and PbO 2  (16), all immersed in H 2 SO 4 . An insulated closure member (20) which may, before assembly have a hole C26), as may the current collector (18). produces, after assembly, Fig. 2 (not shown), an air and gas tight terminal connection.
Patent GB-1021741-A (GB)
Title: Improvements in or relating to continuous rod making machines
IPC: A24C5/31
Filed: 1963-05-20
Abstract: 1,021,741. Cigarette-making machines. MOLINS ORGANISATION Ltd., and M. A. PYM. May 19, 1964 [May 20, 1963], No. 20054/63. Heading A2C. A continuous rod making machine in which when the machine is operating correctly a continuous rod issuing from rod forming mechanism travels lengthwise in a substantially linear path across a gap to a rod receiving member has a rod cutting device comprising diverting means and a disc knife carried by the frame of the machine and rotatable about an axis substantially normal to the linear path of movement of the rod. The cigarette or filter rod is passed beneath a heater 1 to seal the paper wrapper and is carried on an endless tape 2 beneath a hooked portion 12 of a guide member 5 pivoted at 6 to a fixed bracket 7 and urged by a spring 8 to a position which allows the rod to travel to a member 4 which forms the entry to a cut off mechanism. At the commencement of operation with the rod unsatisfactorily formed, the guide member 5 is moved downwardly by a handle 17. The heater is then lowered and when the rod is satisfactory the operator releases the guide member 5 and the spring 8 pulls the guide member and rod upwardly against stop 11. The rod is severed by the rotating disc knife 13. The rod then travels forwardly to the cut off mechanism. The guide member may be moved automatically by providing an over centre device the position of which is controlled by the stiffness of the rod, or by making it dependent on some part of the machine e.g. the lowering of the heater.
Patent GB-487552-A (GB)
Title: Improvements in or relating to the manufacture of starch
IPC: C08B30/04
Filed: 1937-07-20
Abstract: In the manufacture of starch from materials such as maize by steeping and wet milling followed by tabling of the mill starch, the gluten tailings are centrifuged to produce a gluten overflow and a recovered starch underflow, and the starch underflow is introduced into the mill starch stream for retabling.  The gluten tailings may be concentrated, e.g. by settling, before centrifuging, and a wash water, e.g. the overflow from the settling, may be supplied to the centrifuge.  The liquors fed to the centrifuge may be warmed.  Part of the gluten tailings or of the centrifuged starch may be diverted to prevent fouling.
Patent GB-531046-A (GB)
Title: Improvements in or relating to clutch operating mechanism
IPC: F16D23/14
Filed: 1939-07-11
Abstract: 531,046. Operating clutches. NEWTON, N. B. July 11, 1939, No. 20125. [Class 80 (ii)] In clutch operating mechanism, either the thrust block k, or the co-operating thrust ring f, or both, neither of which is slidable on the transmission shaft o are mounted so as to provide self alignment. As shown, the ring f has a spherical surface carried in a spherical recess ir a ring b to which the clutch levers a are connected. The spherical surfaces are urged intc engagement by a spring j. In a modification the carbon block k is mounted in a member spherically seated in the member l which has trunnions m engaged by the clutch operating fork n. In another modification, a bush of rubber is fitted between the members b.
Patent GB-365491-A (GB)
Title: Improvements in springing arrangements for vehicles
IPC: B60G11/14
Filed: 1931-07-14
Abstract: 365,491. Road vehicle suspensions. DAIMLER BENZ AKT.-GES., Untert³rkheim, Stuttgart, Germany. July 14, 1931, No. 20204. Convention date, July 15, 1930. [Class 108 (ii).] In vehicle suspension systems in which the wheels are independently mounted on swinging half-axles 4 turning about longitudinal axes near the centre of the vehicle, the abutments of the helical suspension springs 5 are maintained parallel to one another by linkwork. The inner end of the half-axle 4 is pivoted to the gear box 2 about a longitudinal axis 3 and the lower seat 7 of the helical springs 5, arranged in front of and behind the axle, is maintained parallel to the upper seat 6 on the frame 1 by parallelogram linkwork. The seat 7 is pivoted to the axle at the point 9 and is also connected at the point 10 by a link 11 to a point 12 on the gear box. The parallelogram formed by the connections between the pivots 9, 10, 12, 3 thus maintains the pivots 9, 10 in a vertical line and the seat 7 horizontal.
Patent GB-928337-A (GB)
Title: Artificial reverberation apparatus
IPC: G10K15/10
Filed: 1959-06-15
Abstract: 928,337. Artificial reverberation devices. HAMMOND ORGAN CO. June 15, 1959 [Oct. 13, 1958], No. 20418/59. Class 40 (4). [Also in Group XL (b)] A device for obtaining a reverberation effect comprises at least one coil spring 40, Fig. 1, connected between two transducers 36, 37, said spring being in two parts connected in series and wound in opposite directions. Transducer 36 converts an electrical audio-frequency input signal into mechanical vibrations. These vibrations travel along the spring 40 as torsional oscillations, are reflected from its ends to derive the reverberation effect and are converted into electrical signals at transducer 37. Other coil springs 41, 42, also in two parts of opposite hand, are in parallel with spring 40. The two parts are joined at their lower ends by a sleeve 48, Fig. 6. The springs 40, 41, 42 are loosely suspended between the transducers and for shipment may be clamped by inward movement of a metal strip 66. Rubber strip is cemented to the metal strip 66 and to the adjacent part of the frame to prevent damage to the clamped springs. Clips 110 serve to retain the springs when the apparatus is tilted. The lower end of the device floats between springs 32. Transducers.-Each transducer 36, 37 comprises a U-shaped laminated core 100, Figs. 3, 4, and a pair of signal coils 106. Between the pole faces of the core 100 are magnets 96, e.g. of ferrite. The magnets 96 are supported by wires 90 and each magnet 96 is connected by a hook 94<SP>1</SP>, Fig. 5, to the end of a spring 40 &c. Damping washers 84 differing in thickness from one to another embrace the wires 90. System.-Electrical signals from a source 120, Fig. 10, which may be an electrophonic organ, a microphone, a gramophone or a tape recorder are amplified in amplifier 122 and part of the output signal is fed to loud-speaker 124 while the remainder is applied to the reverberation device 126 and then to an amplifier 28 and loud-speaker 130.