baber/WOPTO huggingface dataset:
Patent GB-1413173-A (GB)
Title: Polymerisation process
IPC: C08F283/00
Filed: 1972-07-07
Abstract: 1413173 Polymerizing vinyl chloride BP CHEMICALS INTERNATIONAL Ltd 3 July 1973 [7 July 1972 6 Oct 1972] 31875/72 and 46288/72 Heading C3P Vinyl halides are polymerized under aqueous suspension conditions while for at least the first 5% conversion free liquid phase monomer is substantially absent, monomer is fed at a rate not greater than the rate at which it is consumed and sufficient agitation is applied to produce non-spherical polymer particles having a length to breadth ratio of at least 1¢ : 1. The monomer may be maintained throughout substantially in the vapour phase or may later be present as liquid. In a preferred embodiment a fibrous seed material is present, e.g. polyamide, polyester, cellulose or glass fibres.
Patent GB-1513960-A (GB)
Title: Apparatus for reading coded information
IPC: G06K7/08
Filed: 1975-07-31
Abstract: 1513960 Card sensors WESTERN ELECTRIC CO INC 31 July 1975 [2 Aug 1974 (2) 27 Feb 1975] 31988/75 Heading G4M A reader for self clocking binary signals has two spaced read heads feeding circuitry deriving clock and data pulses from the signals. The data may be bar codes or magnetic signals on credit cards with the data arranged in cells having a transition at cell boundaries and a transition in the cell for e.g. a '1' and no transition for e.g. a '0'. In one embodiment (Fig. 8) the heads are spaced by ¢ cell width, and the data is magnetically recorded. The heads feed separate amplifiers 66, 67 the outputs of which feed OR gate 68 and AND gate 70. Each transition at a cell boundary and in the centre of a '1' cell produces a pulse to form train 530 from the leadin7 head and 531 from the trailing head. The pulses from OR gate 68 alternately set and reset flip-flop 71 to produce clock signals V81 at its output. AND gate 70 passes a pulse only when pulses coincide in trains 530, 531 and V81 and this only happens at each '1' pulse in train 31. The read head contains a plurality of magneto resistive elements 30a, 30b, 31a, 31b joined by conducting elements 40a, 40b, 41a, 41b. The length of the series of elements 30, 31 is arranged to correspond to the width of the track to be read. If the card carries two or more parallel tracks then further sensors 30<SP>1</SP>, 31<SP>3</SP> are provided offset from the first sensors to correspond to the track position. The spacing between the further sensors may be changed if the cells in the second or further tracks have different widths C1, C2. If the card has visible marks (Fig. 18C) spaced optical read heads produce signals (Figs. 18A, Figs. 18D) as shown spaced by one cell. The cells feed an Exclusive NOR gate 52 producing a signal (Fig. 18E) only when the two inserts differ and the trailing head feeds a transition detector 57 produces pulses (Fig. 18G) at each black/white or white/black transition. The pulses are fed to AND gate 58 receiving the Q output of flip-flop 53 to remove the pulses corresponding to the '1' transitions. The clock signals are inverted and used to clock the flip-flop to produce an output signal (Fig. 18F). The spacing of the read heads may be n non- integral or an integral multiple of the cell width. A shift register storing the values of cells occurring between the read heads is required (Figs. 20, 22, not shown) and a logic circuit determining how many '1's are stored in the cells is used to determine the values of succeeding cells.
Patent GB-520968-A (GB)
Title: Process for the manufacture of acid violet triarylmethane dyestuffs
IPC: C09B11/12
Filed: 1938-11-04
Abstract: 520,968. Dyes. I. G. FARBENINDUSTRIE AKT.-GES. Nov. 4, 1938, No. 32070. Convention date, Nov. 6, 1937. [Class 2 (iii)] Triarylmethane dyestuffs containing two vic. m-xylidine residues and in the p-position to the carbinol carbon a replaceable atom or group e.g., halogen, alkoxy, sulphonic or nitro are reacted with aminophenols or substitution products thereof, the components being such that the products contain at least two sulphonic groups or a sulphonic group and a carboxylic group. In a modification, at least two sulphonic groups are introduced into the dyestuffs by sulphonation. In examples: (1) a dyestuff derivable from vic.-m-xylidine and p-chlorbenzaldehyde is treated with p-phenetidine and sulphonated ; (2) a dyestuff derivable from vic.-m-xylidine and p-chlorbenzaldehyde-msulphonic acid is treated with 4-aminophenol- 2-sulphonic acid, 2-hydroxy-3-aminobenzoic acid, 3-sulpho-5-amino-2-hydroxybenzoic acid and with 5-amino-2-hydroxybenzoic acid.
Patent GB-175397-A (GB)
Title: Improvements in or relating to extra air valves for internal-combustion engines
IPC: F02D9/00
Filed: 1920-11-13
Abstract: 175,397. Williams, W. Nov. 13, 1920. Closure members, rotary cylindrical.-An extra air valve is in the form of a thin flat plate or washer A adapted to be inserted between the flanges of the carburettor and induction pipe, being provided for this purpose with bolt holes A<1>. In the face of the washer an annular recess B is formed to accommodate a ring-shaped valve C with port C<2>. Air inlet holes E, E<1> are formed in the washer outside and inside the recess. The valve is provided with an arm C<1> actuated by Bowden mechanism F and a returning spring G<1> may be provided, or the Bowden mechanism may be of the push-and-pull type. The Provisional Specification states that the ring valve may be provided with openings.
Patent GB-155239-A (GB)
Title: Weirs and related means for meauring the flow of water in open channels
IPC: G01F1/00
Filed: 1920-11-15
Abstract: 155,239. Herschel, C. Dec. 6, 1919, [Convention date]. Weirs.-Means for measuring the flow of water in open channels comprise a weir having sloping plane or curved up-stream and downstream surfaces a, c, and a rounded crest, the difference between the pressures up-stream and at the crest serving as a measure of the flow. The crest member may have flanges i, j, Fig. 2, for the connexion of the surfaces a, c and may be made in sections with uniting flanges m, Fig. 5. Each unit is made internally rust-proof. Where this is done by means of lining tubes p, the liner of one section may project so as to be received by the next section.
Patent GB-1425755-A (GB)
Title: Structural membrane panel formed from saddle shaped shaped  surfaces
IPC: E04C2/38
Filed: 1973-07-06
Abstract: 1425755 Structural panel having anticlastic surfaces J R HALE 6 July 1973 32393/73 Heading E1B A panel comprises an even number of contiguous anticlastic surfaces, the outer edges of said surfaces forming the perimeter of the panel which is a plain or skew polygon and a central structural element surrounded by said anticlastic surfaces, joining the central portions thereof together to form a structural bridge therebetween. The centrally located structural element may comprise a saddle, a valley or a crosscap. When a central saddle or valley is used bridging members are utilised to tie the vertices of the central structure together.
Patent GB-1000759-A (GB)
Title: Process for the catalytic refining of hydrocarbons containing diolefines
IPC: C10G67/02
Filed: 1961-09-08
Abstract: In the refining of hydrocarbon mixtures that contain a substantial proportion of aliphatic and cyclic diolefines and acetylene derivatives, especially those obtained in the thermal splitting of liquid hydrocarbons, by subjecting the mixture to catalytic hydrogenation at elevated temperature and pressure, with the separation of the higher boiling hydrocarbons, the hydrocarbon mixture is first heated to 80-200 DEG  C. and freed from solid polymerization products that separate out, the mixture is then evaporated in the presence of hydrogen or a hydrogen-contaiing gas and the liquid particles are separated from the resulting gas-vapour mixture, and thereafter heated to reaction temperature in a heat-exchanger and passed upwardly in succession through the catalyst arranged in a plurality of layers, the lowest layer or layers being periodically or continuously washed with raffinate, raffinate fraction, starting material, or other washing liquid.  Immediately prior to entering the heat-exchanger, the mixture may be subjected to a preliminary hydrogenation.
Patent GB-907642-A (GB)
Title: Separating device for separating foreign particles from a gaseous medium
IPC: B04C3/00
Filed: 1958-10-13
Abstract: 907,642. Centrifugal separators. JOY MANUFACTURING CO. Oct. 13, 1958 [Oct. 31, 1957], No. 32557/58. Addition to 858,897. Class 23. [Also in Group XII] In a modification of the apparatus of the parent Specification, wherein a gas, e.g. dustladen air, flowing in a conduit 11 is contacted with a liquid, e.g. water, by passage through a wetted screw 20, the separating device for removing particles entrained in the gas comprises an axially arranged core member 12, blades 46 to impart a rotary movement to the gas and entrained particles and a collecting chamber 13 for centrifugally separated entrained particles surrounding the conduit 11 and divided into a series of smaller chambers 50, each communicating with the interior of the conduit 11 through an opening 62, the downstream converging portion of the core member 12 tapering inwardly of the downstream aerodynamic flow profile of the gas stream permitting inward expansion thereof sufficient to induce a reverse flow of gas adjacent the surface of the core member and prevent liquid flowing along the surface of the core member to a point where it could be re-entrained in the gas and carried through the separating device. Towards the downstream end of the collecting chamber 13 the conduit 11 may contain a core having vanes for returning the gas to an axial flow. In a modification the downstream end of the core member 12 is truncated at a point beyond that at which the reversal of flow occurs.
Patent GB-384425-A (GB)
Title: Improvements in or relating to reflectors for use on bicycles, tricycles, and like ma
IPC: B62M3/12
Filed: 1931-11-25
Abstract: 384,425. Cycle pedals. EVANS, P. T., Newholme, Emscotte Road, WRIGHT, J. H., 26, Warwick Row, both in Coventry, and BRAMMER, H., Vesper Mount, Vesper Road, Kirkstall, Leeds. Nov. 25, 1931, No. 32615. [Class 136 (ii).] A reflex light is mounted on the side plate of the pedal of a cycle. In Figs. 1 and 2, each side of the plates 1 of the pedal is provided with a reflector consisting of a ruby glass &c. disc 7 mounted in a frame 9 having lugs 13 for attachment to the plate 1. The back of the disc 7 may be silvered or a separate piece of silvered glass &c. 11 may be mounted behind the disc. Various forms of attaching means are described. In Fig. 8 the reflector 7 is held between a flange 21 and a lip or rim 24 and is backed by a mirror sheet 22 fixed to the plate 1. Alternatively the reflector may be provided with clips for attachment to the pedal or it may be held between lugs carried by the plate 1. The reflector may be of any desired shape, e.g. elliptical or polygonal.
Patent GB-1432159-A (GB)
Title: Fluid jet method and apparatus for treating yarn and yarn so treated
IPC: D02G1/16
Filed: 1973-07-09
Abstract: 1432159 Finishing yarns; fluid twisters E I DU PONT DE NEMOURS & CO 9 July 1973 [11 July 1972] 32616/73 Headings DID and D1F In fluid jet apparatus for processing e.g. bulking, convoluting, crimping, forwarding, heating, interlacing, relaxing or twisting, yarn, a cap member 1, maintained at surface 8 in sliding contact against a bearing surface 9 of a base member or block 2 by a spring 11 operating between member I and a retainer 12, is moved by a handle 16 into a position wherein a yarn passage or groove 3 is beyond the edge 10 and thus open for "string-up", Fig. 2 (not shown). When the cap is released, it is returned to its operating position and there maintained by a spring 14 acting between member 1 and an adjustably located retaining screw 15. In the operating position, the groove 3 is closed and yarn passes therethrough with high velocity fluid supplied through fluid connection 7, conduit 6, into plenum chamber 5 thence through a passage formed by a groove 4. As shown in Fig. 4, the bearing face 9 is curved and the member 1 is rotated within the block 2 by means of a handle 17 to open the groove 3 for string-up, with the groove and plenum chamber 5 disconnected from the fluid supply. The fluid passage may intersect the groove 3 tangentially for twisting the yarn.
Patent GB-1310704-A (GB)
Title: Process for the manufacture of mouldings of polylactams by acti vated anionic polymerization of lactams
IPC: B29C39/40
Filed: 1970-07-06
Abstract: 1310704 Compression-moulding polylactams BADISCHE ANILIN- & SODA-FABRIK AG 6 July 1970 [7 July 1969] 32617/70 Heading B5A Polylactams formed by activated anionic polymerization of lactams having 5-13 ring members are moulded by feeding a mixture of lactam, catalyst and activator, preheated to polymerization temperature to a mould also heated to polymerization temperature, polymerizing the mixture, closing the mould with a plunger heated to 80-180 C. so that the mixture completely fills the cavity, advancing the plunger during polymerizing to compensate for contraction during polymerization without applying pressure on the mixture and, when no further contraction occurs, closing the mould fully under pressure, preferably 200-800 kg./cm.<SP>2</SP>, and 10-120 seconds after commencement of polymerization.
Patent GB-1009773-A (GB)
Title: Production of carboxylic acids and esters, particularly lactones
Inventor: CROWTHER ALAN LEWIS
IPC: C07C51/31
Filed: 1963-08-19
Abstract: Esters, particularly lactones, and carboxylic acids are produced by co-oxidizing, in the liquid phase, a cycloaliphatic ketone containing 5 to 12 carbon atoms in the ring and in which the carbonyl group forms part of the ring, or an aromatic or saturated aliphatic ketone in which the carbonyl group does not form part of a ring together with an aromatic or saturated aliphatic aldehyde with molecular oxygen at 50-150 DEG  C. in the absence of deliberately provided metallic compounds possessing catalytic activity under the reaction conditions.  The ketone may be substituted, e.g. by alkyl, alkoxy, carboxyl or ester.  The ratio of the total quantities of aldehyde to ketone used may be in the range 1 : 10 to 4 : 1.  The reaction may be operated batchwise or the aldehyde may be gradually added to the ketone while feeding oxygen, or both ketone and aldehyde may be fed con tinuously to the reaction zone while adding oxygen.  An inert diluent may be used.  Elevated pressures are preferred.  The reaction may be initiated by U.V. light, ozone, peroxy com pounds or azobisalkoxynitriles.  A sequestering agent may be added, many being specified. The reaction vessel is preferably made of glass, a polymeric material or aluminium.  In examples, cyclohexanone is oxidized to caprolactone and some adipic acid in the presence of n-butyr aldehyde, acetaldehyde, benzaldehyde, 3,5,5 trimethylhexanol or adipaldehyde, cyclo pentanone to valerolactactone and glutaric acid in the presence of n-butyraldehyde, and octanone-2 to hexyl acetate in the presence of n-butyraldehyde, the acid corresponding to the aldehyde being also obtained in each case.
Patent GB-758429-A (GB)
Title: Improvements in or relating to cigarettes
IPC: A24D3/04
Filed: 1954-11-11
Abstract: 758,429. Cigarettes. ECUSTA PAPER CORPORATION. Nov. 11, 1954 [Aug. 10, 1954], No. 32669/54. Class 130. A porous wrapper zone or an aperture or apertures 4 admit air to a filter-tip cigarette, as described either directly to the tip 3, to the tobacco immediately upstream thereof, or downstream thereof through a paper mouthpiece (not shown). The apertures 4 may be so sized as to make the flow resistance of the cigarette equal to that of a filterless cigarette. The tip 3 may be of crumpled tissue paper and include. activated charcoal, cuprous chloride or aluminium hydroxide. Specification 768,381 is referred to.
Patent GB-872722-A (GB)
Title: A device for limiting the gas consumption of pneumatically controlled electric circuit breakers
IPC: H01H33/70
Filed: 1958-10-14
Abstract: 872,722. Gas-blast switches. ZARODY, V. I. LENINA PLZEN, NARODNI PODNIK. Oct. 14, 1958 [Oct. 14, 1957], No. 32738/58. Class 38 (5). A circuit-breaker with a fixed nozzle contact through the bore 2 of which compressed gas escapes to extinguish an arc, has outlets 1 for the gas and a differential piston number 4 which descends under the gas pressure until openings 8 partially obturate the outlets 1 and thus restrict the flow of gas. A spring- loaded valve 6 releases the pressure on the pistons member when the contacts reclose so that the piston quickly returns to its spring- loaded position.
Patent GB-608634-A (GB)
Title: Terminal installation for multiplex carrier-current telephony
IPC: H04Q1/10
Filed: 1945-12-04
Abstract: 608,634. Carrier telephony. SOC. ANON. DE TELECOMMUNICATIONS. Dec. 4,1945, No. 32760. Convention date, Aug. 6, 1942. [Class 40 (iv)] [Also in Group XL (c)] In order to arrange the whole of the terminal system on a single standard rack, each group of 3 juxtaposed panels mounted on the rack carries the transmitting and receiving equipment for two channels, the two outer panels each carrying the low-frequency equipment of one channel and the central panel carrying the high-frequency equipment of both channels. The invention is described with reference to a system in which modulation (and demodulation) takes place in two stages first by a source of 8 Kc. and subsequently by one of the 12 frequencies 20, 24 ... 64 Kc. The channel transmitting equipment is situated on the front of the rack, Fig. 2, and the receiving equipment on the rear of the rack, Fig. 4. Panel 21, Fig. 2, contains the input voltage limiter 1, voice frequency band-pass filter 2, modulator 3 producing both side bands of 8 Kc. and band-pass filter 4 passing one (the lower) side band only, which is then fed to the high-frequency panel 22 where, in modulator 5, it produces side bands of 20 Kc., the lower one of which, selected by band-pass filter 6, is fed in common with the outputs from other channels to the outgoing group repeater on panel 18, and thence to line. Incoming carrier currents, amplified by an incoming group repeater on panel 19, are fed to the channel filters such as 11, panel 22, whose output is demodulated by 20 Kc. current at 12, the resulting low-frequency current then passing to panel 21 where it is filtered at 13, further demodulated by 8 Kc. current at 14 filtered at 15 and amplified at 16. Corresponding elements 1<SP>1</SP> ... 6<SP>1</SP>, 11<SP>1</SP> .... 16<SP>1</SP> in panels 22, 23 appertain to the second channel. Spaces 39, 39<SP>1</SP> are empty in all such panels as 22 except one in which they are occupied by paralleling devices for the respective output and input channel filters. The central panel 20 includes test jacks, test sockets for measuring all the filament and plate currents, and alarm circuits (see Group XL (c)).
Patent GB-810466-A (GB)
Title: Operating mechanism for railway facing points
IPC: B61L5/00
Filed: 1955-11-16
Abstract: 810,466. Railway points operation. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd., and LOCKETT, L. J. Nov. 8, 1956 [Nov. 16, 1955], No. 32797/55. Classes 104 (1) and 105. In a link and lever system by which opening and closing movement is transmitted to a railway points blade one of the movement transmitting members is subject to a turning moment by the operational force but is constrained to rectilinear movement bodily along the major portion of its stroke, and a cam profile governs the final movement of the blade closing stroke to cause said member to turn thereby transmitting the operational force with progressively increasing leverage in the manner of a toggle mechanism until, at completion of the stroke, the member reaches a dead-centre position and the blade is thereby held firmly against the stock rail. As shown, a lever 15 has an operational arm 15a and a perpendicularly related arm 15b, the latter being coupled by a stiff elastic link 20 to the blade 14 and having two floating pivots 16, 17 constrained to move by a slot 13 in the chair 12 secured to the stock rail 11, one of the floating pivots, e.g. 17 being additionally constrained, in the closing movement to move over a guide surface including a locking face 24 disposed within a side bay 23 and formed on an arc described from the position of the axis of pivot 16 at the end of the blade-closing movement and leading to said lock face an approach section such as to allow the pivot 17 to move on to the lock face until it abuts a stop face 25 by gradual turning operation of the lever 15 as the closing movement of the lever is being completed, whereby the blade 14 is closed against the stock rail to be held firmly in the closed position by engagement of the pivot 17 with the lock face 24, the axis of the pivot 19 connecting the arm 15b to the link 20, then intersecting the axis through the pivot 16 perpendicular to the stock rail 11 forming a dead centre. The link 20 has at least one double bend 22 enabling the link to be passed underneath, from one side to the other of the stock rail, the bend giving elasticity to the link. A spring detent 28 is arranged to act resiliently to maintain the lever arm 15b in a position corresponding to the closed blade position. In a modification, Fig. 2, not shown, one of the floating pivots, viz. 16, is constrained to arcuate movement by pivotal connection to a radius arm and the pivot 17 co-operates with the cam profile which includes at one end a lock face against which the pivot 17,bears to hold the blade in the closed position, the profile being extended away from said end in such manner as to constrain the pivot 17 to move in an arc in the same direction as, and corresponding to, the arc of movement of the pivot 16. Separate link and lever systems may be provided in respect of each blade, even though the blades be interconnected by a stretcher bar, or the two blades may be set by the same link and lever system through the medium of a stretcher bar.
Patent GB-188233-A (GB)
Title: A combination pudding basin handle & band
IPC: A47J45/10
Filed: 1921-12-07
Abstract: 188,233. Beadle, E. Dec. 7, 1921. Handles; covers. - A handle for a pudding. basin combined with a band for holding a pud. ding-cloth in position is made from wire, and the sides of the handle are bent inwards at E so as to rest on the edge of the basin to prevent the band B from slipping down. When the edvice is tilted into the position shown in dotted lines, a hook D securing the band round the basin can be readily manipulated.
Patent GB-1522301-A (GB)
Title: Vehicle bodies
IPC: B62D53/06
Filed: 1976-08-06
Abstract: 1522301 Vehicle body structure LAWRENCE DAVID Ltd 6 Aug 1976 [7 Aug 1975 25 Nov 1975] 32962/75 and 48418/75 Heading B7B A tarpaulin or tilt 10 is secured over a vehicle body 1 by fitting eyelets formed along the edges of the tilt over D-rings 13, 27, threading a wire through the D-rings and sealing the ends of the wire together to prevent unauthorized access to the load, the D-rings at the edges of a platform for the load being provided in recesses 12 of side raves 3. The side raves also include sockets within which pillars 2, 31 may be secured by bolts 32 (see Specification 1,497,878).)
Patent GB-1342265-A (GB)
Title: Method of operating an impact crusher
IPC: B02C13/00
Filed: 1971-07-13
Abstract: 1342265 Impact pulverizers HAZEMAG HARTZERKLEINERUNGS-UND ZEMENTMASCHINENBAU GmbH 13 July 1971 [13 July 1970] 32976/71 Heading B2A A predetermined product size is maintained during operation of an impact pulverizer which comprises a rotor having beater bars and cooperating size reduction tools, viz. impact plates, beater bars, grinding faces, grate bars, &c. The amount of wear and position of the working tools and in firm operation of the crusher are measured. The results of the measurements are arranged to form a programme and the tools are adjusted manually or automatically by reference to the programme. Measuring devices include, e.g. non- contacting feelers. Some data is predetermined as a result of experience.