baber/WOPTO huggingface dataset:
Patent GB-1025393-A (GB)
Title: Improvements in spinning polyacrylonitrile fibres
Inventor: FOLLOWELL ROY FREDERICK
IPC: D01F6/18
Filed: 1961-07-18
Abstract: 1,025,393. Polyacrylonitrile filaments. COURTAULDS Ltd. July 17, 1962 [July 18, 1961], No. 25928/61. Heading B5B. Polyacrylonitrile fibres are made by extruding a polyacrylonitrile solution through a jet having a face over an area of which a plurality of spinning orifices are distributed into a chamber containing said jet face and having an aperture opposite the jet face, which aperture is coaxial with and of approximately the same area and shape as said area of the jet face, and is formed in a baffle which in part defines the chamber, introducing a coagulant liquid continuously into the chamber, and withdrawing the fibres and the coagulant through the aperture. Acrylonitrile homopolymers, and copolymers with e.g. styrene, methyl acrylate, itaconic acid, methallyl sulphonic acid and its salts, vinyl acetate and vinyl pyridine, containing at least 80%, preferably 90-95% acrylonitrile units, may be used. The linear speed of the fibres may be from 3À5-8m./min., preferably] 3À5-6 m./min., and the linear flow rate of the coagulant liquid through the aperture may be equal to or slightly less than the linear speed of the fibres through the aperture. Desirably, the aperture and the perforated area of the jet face are both generally circular and the diameter of the aperture is within 15%, preferably 10%, either way of the diameter of that area, the distance of the aperture from the jet face being not more than half the maximum possible path length of the fibres in contact with the coagulant, said distance being preferably ¢ inch-6 inches and especially ¢ inch-1¢ inches. The jet face may be disposed symmetrically in a symmetrical chamber and the means for introducing coaguland liquid may be designed to introduce the liquid symmetrically with respect to the jetface, said means suitably comprising a line of orifices disposed coaxially about the jet face. The baffle may be flat or at least in part frustoconical with the aperture at its narrower end. In apparatus as shown, the jet assembly 1, fed with spinning solution from pipe 2, is axially disposed in a cylindrical vessel 3. The jet is symmetrically surrounded by a frusto-conical baffle 4, which tapers upwardly to a circular aperture of the same diameter as the circular perforated area of the jet face 5. Coagulant liquid is fed continuously via pipes 6 and a perforated baffle 7 into the chamber 8 defined by the baffles 4 and 7, whence it passes with the filaments through the aperture in the baffle 4 into the main body of the vessel 3. From the top of the vessel, the filaments are withdrawn by a godet (not shown) while the coagulant overflows into an annular channel 9, from which it is taken for concentration and re-use.
Patent GB-1037395-A (GB)
Title: Fluid flow control valves
Inventor: TITTERTON THOMAS
IPC: F16K1/42
Filed: 1963-07-01
Abstract: 1,037,395. Valves. SYDNEY SMITH & SONS (NOTTINGHAM) Ltd. Aug. 25, 1964 [July 1, 1963], No. 25998/63. Heading F2V. A conical closure H, displaceable upon threaded spindle G, effects closure within aperture L of seating ring K, made of soft material, e.g. polytetrafluoroethylene, which fits loosely within valve chamber N and is thereby expanded into sealing contact with chamber shoulder M and the cylindrical wall around the periphery K 2 of the ring K. A lantern ring J is provided which may be made integral with the seating ring K.
Patent GB-808153-A (GB)
Title: Method of and apparatus for drying liquid substances
IPC: B01D1/00
Filed: 1956-08-27
Abstract: <PICT:0808153/III/1> Liquid substances are dried by applying them to an endless band, passing the latter with the substance carried thereon first through a heating zone in which drying is effected, and then through a cooling zone in which the dried product is cooled and becomes crisp or friable, and finally scraping the dried and cooled substance from the band.  A plurality of separately heated heating chambers may be provided or a single heating chamber may be subdivided into a plurality of separately heated sections.  The cooling chamber may be disposed on the same or opposite sides of the band or cooling may be effected by exposing a corresponding part of the conveyer to atmosphere.  In a preferred embodiment the heating zone is divided by vertical partitions 191, 192 and 193 into zones 131 132, 133 and 134 and the cooling chamber 15 extends along the greater part of the length of the band 10.  The liquid which may be molasses may be sprayed by means of a feed device 18 as described in Specification 760,131, [Group II], and detached by means of scraper 16.
Patent GB-586828-A (GB)
Title: Improvements in or relating to a photographic roll film camera
IPC: G03B19/06
Filed: 1944-12-29
Abstract: 586,828. Photographic roll - film cameras. KODAK, Ltd. Dec. 29, 1944, No. 26106. Convention date, Jan. 26. [Class 98 (i)] A camera in which two film exposure frames are arranged at an angle to each other and a separate roll film is moved across each frame, contains a single objective lens mounted in the curved wall of a hollow cylindrical member diametrically opposite an aperture which may be caused to register with one or other of the frames by turning the cylinder about its axis, thus allowing the making of exposures at either frame. As shown, the front and top walls 3, 4 of the camera body 1, Fig. 1, are cut away to permit adjustment, into one or other of two perpendicular orientations, of the lens 15 and shutter 13 which are carried by a tubular extension 10 on the curved wall of a hollow cylinder 9 mounted within the body and rotatable through 90 degrees about its axis. The gap thus made in the body is closed by parallel plates 7, 8. An inner frame formed on walls 4, 5, 6 of the body has projections 30, 31, 32, Fig. 2, which form a light seal with the cylinder 9 preventing stray light from reaching either of two exposure frames 17, 18 across which roll films F1, F2 may be fed. The cylinder has an aperture 16 registering with one or other of the frames in the two positions of the cylinder, and it is locked in either position by means of an externally-operated spring-biassed pin 27, carrying a lug 28, which engages notches 29 spaced at 90 degrees on the flange 24 of one end wall of the cylinder. An alternative latch device engaging notches on a trunnion of the cylinder is described. View finder 'systems for either position of the cylinder are provided, the field lens 40 being mounted on the shutter casing 13 and foldable eye lenses 42, 45 being mounted at top and bottom of the rear wall 5.
Patent GB-929234-A (GB)
Title: Improvements in or relating to sliding clasp fasteners and to the manufacture thereof
IPC: A44B19/54
Filed: 1959-07-30
Abstract: 929,234. Sliding clasp fasteners. TADAO YOSHIDA. July 30, 1959 [Aug. 4, 1958], No. 26209/59. Class 44. A sliding clasp fastener includes a pair of stringers each of which comprises a stringer tape 3, a continuous element 2 woven as a warp thread into an edge of the tape, at least one pair of thick warp threads 6 adjacent to the continuous element and disposed on respective sides of the tape and a U-shaped cover-tape 7 for the thick warp-threads and continuous element integrally woven with the tape. A slider 5 is slidable over the elements, thick warp threads and tape. The elements may be of a different shape from each other.
Patent GB-216044-A (GB)
Title: Improvements in exhaust silencers for internal combustion or other engines
IPC: F01N1/08
Filed: 1923-10-22
Abstract: 216,044. Heather, r., and Hart, E. E. April 24, 1922, [Convention date]. Addition to 196,596. Exhaust-silencers. - A silencer comprises two or more silencers with guide members 3 as described in the parent Specification combined to form a single unit and so disposed that a proportionate part of the exhaust passes through each. The exhaust is guided to a common outlet 6 by a member 5.
Patent GB-1294506-A (GB)
Title: Improvements in or relating to throat microphones
IPC: H04R1/14
Filed: 1970-06-01
Abstract: 1294506 Throat microphones S G BROWN Ltd and D B K TOWNSEND 19 April 1971 [1 June 1970] 26352/70 Heading H4J A throat microphone has a microphone transducer 2 firmly mounted in a casing 1. Sound vibrations mechanically applied to the casing 1 are transmitted to the transducer 2. Sound vibrations also reach the microphone through air in an aperture 5. When used as a conventional microphone the aperture 5 faces outwardly and the transducer 2 is actuated primarily by sound conduction through the air. When used as a throat microphone sound is transmitted mechanically through the casing 1 and by air conduction through the aperture 5, thereby giving good speech intelligibility, particularly of sounds such as "t" and "p" produced by the mouth. The casing has a back plate. With this removed (Fig. 2) there is seen a connecting lead 3 from the transducer 2 taken out via a labrynth 4, to relieve strain. Gauze is fixed to the outer edges of the transducer diaphragm and is also attached to the front face of the casing. The back plate is secured by screws through fixing holes 8 and comprises a resilient pad (9), Fig. 3 (not shown), to press the transducer 2 tightly towards the front face of the casing 1. Integral wings 10 have slots 11 through which a neck strap 12 is fitted. Alternatively, strap securing points are at the two ends of the casing 1.
Patent GB-1017116-A (GB)
Title: Refrigeration dehydration plant and method of use
IPC: F26B5/06
Filed: 1962-07-10
Abstract: 1,017,116. Freeze drying. ATLAS A/S. July 10, 1962 [July 28, 1961], No. 26416/62. Heading F4G. [Also in Division A2] In a freeze-drying apparatus heat-exchange fluid e.g. a mixture of water and ethylene glycol, circulated by a pump 14 through the heat-exchanger 3, 4, for plates 2 in the vacuum chamber 1, is heated to temperatures of the order 140‹ C., by heat transference from steam in the heatexchanger 25 and is cooled to temperatures of the order - 20‹ C. to - 25‹ C. by heat transference to ammonia evaporating in the heatexchanger 20. The plates 2 are connected to means (not shown) to press them towards each other to compress the goods, such as fish fillets or meat, to be dried when loaded on the plates; layers of expanded metal may be placed on the plates to provide a passage for air between the goods and the plates. The heatexchangers are formed of plates and pipes. A vacuum of the order 1 mm. Hg. is maintained in the vacuum chamber 1 by suction means (not shown) which may include the evaporator of a refrigeration plant, whereby a substantial part of the vapour from the goods to be dried can be precipitated in the form of water or ice; one refrigeration plant may serve for both the suction means and the heat-exchanger supplying cold exchange fluid, valves being provided for regulating the proportions of heat-exchange fluid passed through the circuits. The apparatus includes an expansion tank 9. In modifications (1) town water replaces ammonia in the heat exchanger 20, (2) one heat-exchanger replaces the heat-exchangers 20 and 25, (3) the plates 2 are heated and cooled electrically, and (4) the goods are heated partially or entirely by radiant heating. With the apparatus it is possible to freeze the goods to be dried during the charging and the creation of the vacuum, whereby goods charged in the frozen state or with at least their outer layers frozen, are prevented from thawing and spreading of their constituent juices is avoided. Should it be impossible (through leakage) to create the necessary vacuum, the temperature in the vacuum chamber can be brought down to, or kept at, a temperature below the freezing point so that the goods will not be damaged. After the drying an inert gas is admitted to the vacuum chamber 1 and the plates 2 are strongly cooled.
Patent GB-1008594-A (GB)
Title: Process for the production of amines
Inventor: LAWSON ALEXANDER
IPC: C07C209/68
Filed: 1963-07-03
Abstract: a -Aminoacids are converted into the corresponding amines by converting the aminoacids into a Schiff's base by reaction with a benzophenone or acetophenone substituted in at least one o- or p-position by an electron-donating substituent, decarboxylating the Schiff's base and hydrolysing the resulting ketimine.  The decarboxylation of the Schiff's base may be effected by simple heating, and the resulting ketimine need not be isolated but may be subjected directly to acid or alkaline hydrolysis. Specified substituted benzophenones and acetophenones are the hydroxy, alkoxy and dimethylamino compounds.  In an example, the Schiff's base from histidine and 2,4-dihydroxy-benzophenone is decarboxylated at 200-210 DEG  C. and the product is hydrolysed with hydrochloric acid at 150 DEG  C. to yield histamine.  Similarly, b -phenyl-alanine yields b -phenylethylamine, phenylglycine yields benzylamine, tyrosine yields tyramine, 3-bromotyrosine yields 3-bromotyramine, and 3,4-dihydroxy-b -phenylalanine yields 3,4-dihydroxy-phenylethylamine.  In place of 2,4-dihydroxybenzo-phenone, 2- or 4-hydroxybenzophenone or 2,21-dihydroxybenzo phenone may be used.  In other Examples, (1) tryptophan and 4-hydroxybenzophenone or 2,21-dihydroxybenzophenone yield tryptamine, and (2) tyrosine and 2-methoxyacetophenone yield tyramine.
Patent GB-262065-A (GB)
Title: Automatic friction clutch
IPC: F16D43/18
Filed: 1926-10-22
Abstract: 262,065. Kaisser, K. Nov. 26, 1925, [Convention date]. Clutches, friction and claw. - Centrifugal clutches, for use with short-circuit armature polyphase electromotors &c., comprise an expand. ing band, segments, &c., producing initial engagement by its or their own centrifugal action, which is later augmented by that of separate spring or weight opposed masses, so controlled as to remain in action until the speed is considerably below normal. A separatelyactuated positive centrifugal clutch locks the parts together at full speed. On the driving-shaft e is mounted a casting f with four radial guides, one pair carrying operating-members c, d, Fg. 1, for the clutch band b, and the perpendicular pair carrying positive dogs o, Fig. 3. The band b is initially expanded against the driven pulley a by its own centrifugal force and that of the part d, bearing on its mid-point, and of the wedge c. bearing between its bevelled ends. Heavilyweighted levers i are held out of action below a predetermined speed by an adjustably spring- pressed collar m thrusting against their tails l. The face of the collar m is frustro-conical, preferably of two conicities t, u, so that, when the levers i are operative, the pressure of the spring n, transmitted to the tails l through the surface u, is taken mainly by the lever pivots h. When the speed, having been reduced by the final engagement of the band b, is again normal, more lightly-loaded levers q, also restrained by the collar m, move the dogs o into engagement with teeth v on the pulley, their tails s then pushing the collar m out of contact with the tails l. As the spring-pressure is now taken mainly by the pivots p, the clutch can come out of action only when the speed has considerably fallen, say to one-third of the normal. In modifications, the collar m, for light clutches, may have a single conical surface; only one dog o may be employed; a six-armed casting f and two bands b, operated simultaneously or successively, mav be used; and the collar m may be also externally controlled to suppress the automatic action.
Patent GB-1013023-A (GB)
Title: Thermally insulated container incorporating heating or cooling means
Inventor: LAING GEORGE
IPC: F25D23/06
Filed: 1963-08-04
Abstract: 1,013,023. Thermallyinsulated containers. MILLER INSULATION AND ENGINEERING Ltd. Nov. 4, 1964 [Aug. 4, 1963], No. 26491/63. Heading F4H. In a thermally-insulated container, e.g. a ship's hold, at least one wall comprises an outer wall 1 having spaced frames 2 and a layer of isolated cellular thermal insulation 3, e.g. polyurethane foam, arranged so as to leave air circulation spaces 6 between the insulation and a piping system 5 used for circulating a heating or cooling fluid.
Patent GB-950014-A (GB)
Title: A projection device
IPC: G03B21/20
Filed: 1961-07-21
Abstract: 950,014. Projection lamps. PATENT-TREUHAND - GES. FUR ELEKTRISCHE GLUHLAMPEN. July 21, 1961 [July 21, 1960], No. 26518/61. Heading H1F. [Also in Divisions F4 and G2] A projection device consists of a concentrated light source and a concave reflecting surface which directs the visible light on to the image aperture, the surface being made up of zones, one of which has a high reflecting power for visible radiation and a high transmissive power for infra-red radiation and the other has a high reflecting power for both visible and infra-red radiation. The reflector may be on a separate support arranged close to the lamp or the rear wall of the bulb may constitute the reflector. The zones are preferably arranged, one at the pole of the reflector and the other as an annular surrounding surface. In the form shown in Fig. 2, employing a high pressure Xeron discharge lamp 21 with the electrodes arranged along the optical axis X-X of an ellipsoidal reflector 23, the reflector consists of a glass support 24 with a metallic reflecting coating 25 arranged around the pole and an annular part 26 having a selective reflecting coating. The part 26 may be made up of four sections of similar shape and size joined in planes passing through the optical axes. The lamp shown in Fig. 5 has a filament 42 in the form of a flat coil arranged at one of the foci of an ellipsoidal reflecting surface formed on the rear wall 54 of the bulb, the image aperture coinciding with the other focus. The wall 54 has an annular metal coating surrounding the pole which is covered by a bowl 7 having a selective reflective coating. The bowl may be secured to the bulb by adhesive or by a frame 64 having bands 65 which pass round the neck 63 of the bulb and round an upwardly extending tubular portion. The front wall 51 of the bulb has a window 59 for passage of the projection beam, surrounded by a metallic reflecting coating 58. A coating reflecting infra-red rays may be applied to the window 59. The wall 51 may be spherical with the centre of the sphere coinciding with the filament 42. Instead of a separate bowl, a metallic reflecting coating may be applied to the bulb. The selective reflecting coating may consist of a basic layer of germanium, silicon, antimony sulphide or selenium and a number of superimposed interference filter layers. In place of a coned filament, the incandescent body may consist of a tungsten wire wound over a thinner wire.
Patent GB-197258-A (GB)
Title: Improvements relating to sliding sash windows
IPC: E05D13/00
Filed: 1922-10-02
Abstract: 197,258. Hooper, R. A. Oct. 2, 1922. Sash-cord attachments.-Cords are secured to window sashes by means of a split tube 3 which enters a groove in the edge of the sash and is kept in position by a bolt 7 and a pocket 6. The cord is secured to the tube by a split cone 4 and screw collar 5, and access to the balance weight is provided by means of a sliding shutter 1.
Patent GB-717905-A (GB)
Title: Improvements in and relating to magnetic amplifier control systems
IPC: H03F9/02
Filed: 1950-10-31
Abstract: 717,905. Control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 31, 1950 [Nov 10, 1949], No. 26551/50. Class 38(3) [Also in Group XXXIX] In an arrangement for controlling the speed and direction of rotation of a D.C. motor 12 in accordance with the relative positions of a fixed and an adjustable tapping 9, 11 on an A.C. potentiometer 6, the tapped potential feeds the control winding 5 of a transductor 1 (see Group XXXIX) and causes the opposing half wave rectified currents in windings 3, 4 to become unbalanced. A resultant direct current component 13 which is smoothed by condensers 18, 19, is thus established in the motor armature 13 and in the differentially arranged field windings 14, 15.
Patent GB-355528-A (GB)
Title: Improvements in sucker rods for deep well pumps and the like
IPC: E21B17/042
Filed: 1930-09-05
Abstract: 355,528. Rod couplings. DARDELET THREADLOCK CORPORATION, 120, Broadway, Manhattan, New York, U.S.A.- (Assignees of Thomson, A. M. ; 636, Mt. Prospect Avenue, Newark, New Jersey, U.S.A). Sept. 5, 1930, No. 26558. Convention date, June 11. [Class 99 (i).] In a joint for the sections 24 of deep-well pump rods, in which the lower end of each section screws into a box 27 at the upper end of the next section, the threaded portion 33 is protected against bending and unscrewing by engaging portions above and below the threaded portion. The engaging portions may comprise a cylindrical collar 28 and a tapered end 32 on the upper section engaging corresponding bores in the box. Alternatively the end 32 and its socket may be cylindrical, the collar 28 being formed with a coned undersurface engaging a coned seat in the mouth of the box.
Patent GB-419478-A (GB)
Title: Improvements in or relating to pockets for trousers
IPC: A41D27/20
Filed: 1933-09-27
Abstract: 419,478. Trouser pockets. SEDDON, G., 19, St. Thomas's Mansions, Lambeth, London.-(Boigon, S. ; 225, Richmond Street West, Toronto, Canada.) Sept. 27, 1933, No. 26616. [Class 141.] A trouser pocket, in the form of a double pocket having a single vertical slot-like entry, is made by positioning a partition piece 2, Fig. 2, and a flap piece 3, Fig. 4, on one half of a base piece 1, and then sewing along the lines 5, 6, after which the piece 1 is folded about the seam 5 and stitched along the lines 8, 9, Fig. 5. The flap piece 3 normally covers the opening to the inner pocket.
Patent GB-456208-A (GB)
Title: Improvements in or relating to circuits associated with the deflecting systems in cathode ray tubes, preferably for television purposes
IPC: H01J29/46
Filed: 1935-05-08
Abstract: 456,208. Valve circuits. RADIOAKTGES. D. S. LOEWE, 10, Wiesenweg, Steglitz, Berlin. May 8, 1935, No. 26637/36. Convention date, May 9, 1934. Divided application. Addition to 423,427. [Class 40 (v)] The deflecting-plates 16, 17 of a highly evacuated cathode-ray tube for television are fed in push - pull from an amplifying circuit using a double valve 20. The input 22 of one electrode system is controlled by the output 25 of the other electrode system.
Patent GB-1337482-A (GB)
Title: Air suspension system for vehicles
IPC: B60G17/033
Filed: 1971-04-19
Abstract: 1337482 Rail vehicle suspension systems KNORR-BREMSE GmbH 19 April 1971 [9 April 1970] 26698/71 Heading B7L A rail vehicle suspension system comprises four bellows arranged in two pairs 2, 6, one at each end of the vehicle and each being associated with a respective air control valve 4, 7, the bellows 2 being at all times controlled individually by their respective valve 4 from an air line 3, but the bellows 6 being either likewise individually controlled by respective valves 7 or controlled jointly by a further air valve 10 according to whether a four-point or a threepoint suspension system is required. Changeover valves 8 inserted between bellows 6 and valves 7 are controlled through a line 9 to provide either the individual or joint control of the bellows 6. In a modification the valve 10 may be dispensed with and valves 8 replaced by a change-over device connected between a valve 7 and its associated bellows 6 and to the junction between the other bellows and valve, whereby it -can be switched by line 9 between a first condition wherein each valve 7 communicates with its bellows 6 and a second position in which one valve 7 communicates with both bellows 6.
Patent GB-878785-A (GB)
Title: Improvements in and relating to oil burners
Inventor: HIMS HERBERT EDWIN CHARLES
IPC: F23D11/38
Filed: 1959-08-05
Abstract: 878,785. Spray burners. PARSONS & MARINE ENGINEERING TURBINE RESEARCH & DEVELOPMENT ASSOCIATION. June 13, 1960 [Aug. 5, 1959], No. 26770/59. Class 75(1). An oil burner comprises a conical swirl chamber having a plurality of tangential fuel inlet orifices d, e disposed at different radial distances from the axis of the swirl chamber and a sleeve c which is moved axially to cut off the supply of fuel to one or more of the inlet orifices d, e. The sleeve may be connected to a device arranged to vary the pressure of the fuel supply.