baber/WOPTO huggingface dataset:
Patent GB-478764-A (GB)
Title: Improvements in and relating to the treatment of coal washery slurry
IPC: B01D21/00
Filed: 1936-12-01
Abstract: 478,764. Purification of coal-washery liquor. GREAVES, H. J. Dec. 1, 1936, No. 32881. [Class 46] [Also in Group XXXVI] The whole or part of the water in circulation in a coal-washery system is subjected to electrical treatment to promote flocculation of fine coal not removed by settling and to prevent accumulation of fouling materials which render the liquid viscous. Conductive salts and/or flocculating agents may be added to the liquid before treatment. The system shown in Fig. 11 comprises a silo S, the liquor from the bottom of which is passed to de-watering screens D<1>, the main part of the liquid passing through which proceeds by a pipe U to a sump R from which it is pumped back to the silo through a pipe R<2>. Part of the liquid is passed through an electric flocculating apparatus F and thence to a filter drum D<2>. Liquid from other parts of the system may be fed to the apparatus F by a pipe P. Part of the liquid in the silo itself may be circulated by a pump through an electric flocculating apparatus immersed therein, the apparatus having a contracted bottom through which the treated liquid is discharged into the silo. The solids recovered may be graded. In the apparatus shown in Fig. 7, the liquid passes three sets of electrodes E<1>, E<2>, E<3> on its way to a basin J containing a rotary drum filter D. Lighter flocculated particles form a froth with the electrolytic gases and are removed by a skimmer M and deflected to one side of the filter drum. Heavier particles passing through the nozzle N are deflected to the other side and the deposits recovered separately from the drum by a knife H. Specifications 171,670, [Class 41], and 478,758 are referred to.
Patent GB-1157492-A (GB)
Title: Machine for Manufacturing Wire Supports.
IPC: B21F23/00
Filed: 1966-07-21
Abstract: 1,157,492. Making chains. FABRICAS LUCIA-ANTONIA BETERE S.A. 21 July, 1966 [21 July, 1965], No. 32913/66. Headings B3E and B3W. Apparatus for making and joining links for use in the manufacture of flexible bed and chair supports includes a pair of co-operating driven rollers to feed the wire to severing and forming means, one roller carrying a cam which engages the other roller to move one of the rollers away from the other and thus stop the wire feed so that a knife may sever the length fed. Wire 1 from a reel passes through straightening rollers 2 and driven feed rollers 3 to a knife 7, the upper roller carrying a cam (6), Fig. 2 (not shown), engaging the lower roller so that the upper roller is intermittently moved away therefrom to stop the feed of the wire and allow the knife 7 to sever the fed lengths. The severed length is folded around a pin 12, Fig. 4, by pincer means 11. The pin 12 is then retracted, the bent wire being held by a clamp 9 on a head 8. The head 8 is then rotated to carry the bent wire to means (13), Fig. 5 (not shown), which twist the neck of the link, the free ends of which are bent over at right-angles by a movable member (15). The bent-over end is further bent back by a cam-operated pivoted member (16), Fig. 6 (not shown). The link is then carried by the head 8 to means (19), (20), Figs. 7, 8 (not shown), which fit the bent-over end of the preceding link into the head of the link last formed and press down to close the hook of the link.
Patent GB-263861-A (GB)
Title: Manufacture of vat-dyestuffs of the dibenzanthrone series
IPC: C09B3/26
Filed: 1926-12-30
Abstract: 263,861. I. G. Farbenindustrie Akt.- Ges. Dec. 30, 1925, [Convention date]. Addition to 218,255. No Patent granted (Sealing fee not paid). Dibenzanthrone dyes. - Vat-dyestuffs are obtained by alkali-fusion of alkyl ethers of oxy- Bz1: Bz1<1>-dihenzanthronyls not substituted in the 2- or 2<1>-position; they are identical with those obtained according to the process of the parent Specification by alkali fusion of ethers of oxybenzanthrones. According to an example Bz2 : - Bz2<1>-dimethoxy-Fz1: Bz1<1>-dibenzanthronyl is fused with alcoholic potash. The Specification as open to inspection under Sect. 91 (8) (a) refers to the alkali fusion of ethers of oxydibenzanthronyls generally. This subject-matter does not appear in the Specification as accepted. Bz2: Bz2<1>-dimethoxy-Bz1 : Bz1<1>-dibenzanthronyl is obtained by heating Bz1-iodo-Bz2-methoxybenzanthrone with copper powder in an indifferent solvent. The Bz1-iodo-Bz2-methoxybenzanthrone may be obtained by nitrating Bz2- methoxybenzanthrone, reducing the nitro group to the amino group, diazotizing, and treating with potassium iodide.
Patent GB-535328-A (GB)
Title: Method for the recording of oscillations
IPC: G11B9/08
Filed: 1939-12-28
Abstract: 535,328. Recording sound and other oscillations. FAIRWEATHER, W. C. (Kollsman, P.). Dec. 28, 1939, No. 32957. [Class 40 (ii)] An insulating carrier, having metallic particles 4 embedded therein and insulated from each other, for example a tape 2 having a coating containing the particles, is drawn between an electrostatically charged cylinder 5 and cathode ray device 8, 10 modulated by the oscillations to be recorded, for example through a transformer 12, whereby the oscillations are recorded by electrostatic charges on the metallic particles. Specification 384,258 and U.S.A. Specification 1,891,780 are referred to.
Patent GB-536463-A (GB)
Title: Cinematographic film printing apparatus
IPC: G03B27/08
Filed: 1939-12-29
Abstract: 536,463. Kinematograph film printing apparatus. TECHNICOLOR MOTION PICTURE CORPORATION. Dec. 29, 1939, No. 33032. Convention date, March 7. [Class 98 (ii)] In contact printing apparatus provided with a travelling film-feeding belt having teeth which enter the sprocket holes of the films, means are provided along the path of the belt for photographically printing one film from another while the teeth are in the sprocket holes, and for producing curvature of the belt and films at the printing position so that the films are held in non-slip relation to each other during printing. The path of the belt preferably has straight and curved portions, the films being fed obliquely to the belt in the straight portion and carried by the teeth round the convex portion, whence the printing occurs. Pictures and a sound track, and, if desired, framing lines, may be so printed, or the framing lines may be printed by leading the film away from the belt to separate frameline printers. As shown, the toothed belt 1 is endless, and passes over drums 2, 3 adjacent to which are a picture printing head 23 and a sound printing head 22. Separate printers 24, 25 are provided for printing the transverse and longitudinal frame lines of the pictures. The positive film P passes from reel 4 to the belt 1 at 7 where it is joined by the sound record negative T from reel 5, and together they pass round the drum 2 past the printing head 22. They leave the belt at 8, film T passing to take-up reel 5<SP>1</SP>, and film P first round the frame line printers 24, 25, and then back to the belt at 13 where it is joined by the picture negative film N from reel 6. These two films pass together round the drum 3 past the printing head 23, and leave the belt at 14 to their respective take-up reels 4<SP>1</SP>, 61. Rollers 18 ... 21 press the films on to the teeth of the belt as it passes round the drums 2, 3. The drum 3 and printing head 23 are adjustably mounted on guideways 27 so that the belt 1 may be tautened. The film reels may be driven from a motor through belt gearing and a reversing clutch permitting printing in either direction of movement of the films, and the same motor may drive the drums 2, 3. The printing head 23 (or 22) comprises casing having a lamp 66, Fig. 6, supported on a removable cover 64, a condenser 67, an adjustable aperture 69, a colour filter holder 170, and a pivoted printing gate 17<SP>1</SP> having an accurately dimensioned printing aperture 175. At the frame printer 24, Fig. 2, the transverse frame lines are printed from an endless film surrounding a toothed rotor round which the film passes, the periphery of the rotor being gapped opposite transparent transverse lines on the endless film so that light from an enclosed lamp may reach the positive film therethrough. At the printer 25 the film is pressed by a platen on to a plate having two slits through which light from an enclosed lamp passes for printing the longitudinal frame lines.
Patent GB-604864-A (GB)
Title: Improvements in and relating to the treatment of cellulosic raw materials to facilitate separation of the cellulose from lignin and other constituents
IPC: D21B1/06
Filed: 1945-12-06
Abstract: Cellulosic raw materials, particularly wood, are subjected to the action of supersonic mechanical vibrations so as to facilitate the removal of the cellulose from the lignin.  The raw material is preferably treated in finely-divided form, e.g. as powder or chips, in suspension in water or other liquid.  The treatment breaks the chemical bonds between cellulose and lignin so that the cellulose is more easily extracted and dissolved.  The vibrations of frequency above 104 per second may be obtained by placing the vessel containing the cellulosic material upon a quartz plate which is in contact with electrodes in connection with a source of high voltage and high frequency electric current.  The power of the primary circuit may be 500 watts and the frequency of the quartz plate may be 295 kilocycles per second.  The vessel and the quartz plate may be immersed in a bath of oil.  Prior to the treatment with supersonic vibrations, the cellulosic material, e.g. powdered pine wood, may be subjected to extraction with acetone for several hours and then to extraction with water. After the treatment, the wood may be pulped by the sulphite or sulphate process, or it may be subjected directly to processes for dissolving the cellulose or converting it into cellulose derivatives. Thus it may be dissolved in cuprammonium solution, or may be nitrated or xanthated.  For the production of viscose, the wood in the form of a suspension in water may be subjected to supersonic vibration, and then treated with alkali and carbon disulphide so that the cellulose is dissolved.  The lignin and other undissolved matter is then filtered off.  Artificial silk, lacquers and explosives may be made from the treated material.
Patent GB-506542-A (GB)
Title: Improvements in or relating to thermionic amplifiers
IPC: H03F1/08
Filed: 1937-11-30
Abstract: 506,542. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 30, 1937, No. 33143. Convention date, Nov. 30, 1936. [Class 40 (v)] Variations in supply voltages to a pushpull .thermionic amplifier, due e.g. to large audio-frequency signal potentials and poor regulation in the supply unit, are compensated by applying the supply voltage fluctuations to the valves in parallel through a condenser. The Figure shows a push-pull amplifier 26 fed from a mains supply unit 34 and taking its input from a radio receiver 32. Grid bias, obtained from the field coil 40 of the loudspeaker 29, is applied over resistances 43 and 43a, but the decoupling condenser 49 is connected to the positive high tension lead 37. Thus any voltage variations across 37, 38 are fed 'back in reverse phase over condenser 49 to the amplifier grid circuits and are thus self-neutralizing. The amplifiers 26 in this case also operate as control or compensating valves. Specification 421,189 is referred to. The Specification as open to inspection under Sect. 91 also describes an arrangement comprising a low-frequency amplifier associated with a control valve acting as a variable shunt across a part of the voltage supply circuit, the voltage variations being applied to the grid of the control valve, Fig. 1 (Cancelled) (not shown). This subject-matter does not appear in the Specification as accepted.
Patent GB-1176759-A (GB)
Title: Photographic Copying Apparatus.
Inventor: NELSON RAYMOND LARTER
IPC: G03B27/52
Filed: 1968-07-12
Abstract: 1,176,759. Photo-copying apparatus. EASTMAN KODAK CO. July 12, 1968 [July 12, 1967], No.33309/68. Headings G2A and G2C. [Also in Division H3] A photographic copying apparatus particularly for copying the printed output of a computer, which output comprises a long paper web folded at regular intervals, includes means for applying an identifying mark to a photographic copy of a document, defined as the paper between successive folds, by causing lamps to flash in response to the detection by sensing means of the folds in the web. A document is advanced at a predetermined speed between the instant of sensing its leading edge fold and the instant of flashing the lamps, there being a delay timer coupled to the sensing means to cause the lamps to flash a specific timer after the fold has been sensed, and gating means coupled to the sensing means and to the timer to prevent coupling of flashinitiating signals from the sensing means to the timer except when a leading edge fold is expected to be in the vicinity of the sensing means. The timer is adjustable so that different length documents may be copied, but so that the mark will be placed in the centre of the photographic copy of whatever length document is being fed. The apparatus is rendered inoperative if the lamps do not flash.
Patent GB-795697-A (GB)
Title: A sheet supporting device for temporary mounting of picture sheets, charts or the like for display purposes
IPC: G09F1/10
Filed: 1955-11-22
Abstract: 795,697. Chart &c. holders. INGHAM, R. Nov. 22, 1956 [Nov. 22, 1955], No. 33335/55. Class 146(2) A sheet supporting device comprises a four sided frame 11, 12, 11, 13, secured to a backing member 10, with recesses 14 between sides 11, 12, 11 and member 10 to receive the sheet and a through-way between side 13 and member 10 for insertion of the sheet, runners 19 extending at least partly along sides 11, and a cross member 22 extending between and slidable along the runners to retain the sheet against member 10. Side member 13 is bevelled as at 18 to facilitate the feeding of the sheet, and is spaced from member 10 by blocks 15 a distance equal to the depth of recesses 14. One end of each runner 19 is secured in a bore in member 13 and the other in a screw eye 21. The flexible resilient member 22, e.g. of covered or uncovered coiled wire, has an eyelet 23 at one end and a hook 24 at the other to embrace runners 19, and carries rotatably a pad 25, e.g. of rubber, shaped so that an offset portion may be engaged with the sheet, as in Fig. 1, or arranged upwardly to permit movement of the sheet.
Patent GB-488406-A (GB)
Title: Improvements in and relating to the depositing of sand and similar material under water
IPC: E02D15/10
Filed: 1937-12-02
Abstract: 488,406. Subaqueous structures. CHRISTIANI, F. R., and NIELSEN, A., (trading as CHRISTIANI & NIELSEN). Dec. 2, 1937, No. 33350. Convention date, Dec. 7, 1936. [Class 68 (ii)] Sand is deposited under water in a definite formation by a combination consisting of a pressure pipe 16 and one or more suction pipes 17 arranged in a casing 6, the orifices being so disposed relatively to one another that the path of motion of the sand grains is influenced by the suction flow as well as by the pressure flow. The pressure pipe nozzle may be nearer the end of the casing 6 than the suction nozzles. The casing may be formed with float chambers. The pressure and suction pipes may be concentric. The pipe systems may be suspended from towers movable on a bridge or traverser running on rails for the purpose of depositing sand &c. beneath a foundation, tunnel element or other structure.
Patent GB-1418947-A (GB)
Title: Patient restraining apparatus for use with a patient support  member
IPC: A61F5/37
Filed: 1973-07-12
Abstract: 1418947 Restraining patients TOKYO SHIBAURA ELECTRIC CO Ltd and S NISHIYAMA 12 July 1973 33372/73 Headings A5R and A5X A device for securing patients on a litter 13 comprises a first flexible band 11 secured to one end to one of the lengthwise edges of the litter 13 and provided with releasable touch-and-close fastener material 14a, a strip 12 secured to the litter 13 so as to overlap the end of the band 11 and also provided with fastener material 14b, and a second flexible band 14 secured to the opposite edge of the litter 13 and provided with fastener material 14c - 14g for engaging with the fastener materials 14a and 14b. The fastener materials 14e-14f are provided on rubber bands 15 which extend the band 14. In use a patient is placed on the litter 13 and the band 4 is laid over him so that the fastener material 14b engages one of the strips of the fastener materials 14c-14f. The band 11 is then overlaid on the band 14 so that the fastener material 14a engages the fastener material 14g. A bag (18), Fig. 4, (not shown) may be provided to contain an extension of the band 14 and attached fastener material (14h). Other configurations of the flexible bands and fastener material are described.
Patent GB-1428995-A (GB)
Title: Actuat'ng device
IPC: H01H33/34
Filed: 1973-07-12
Abstract: 1428995 Hydraulic control circuits SIEMENS AG 12 July 1973 [12 July 1972] 33405/73 Heading F1P [Also in Division H1] In an hydraulic actuating device for a high voltage switch comprising a piston 3 linked to the moving contact 1 of the switch and having two surfaces on which pressurized fluid can act, the top surface having a smaller area than the bottom surface, and the pressurized fluid being fed to the piston under the control of a valve 6 which can be moved to a left or right hand position to cause the piston 3 to rise or fall respectively, the valve 6 is operated by pressurized fluid under the control of a further valve 7 so that creeping due to decrease in fluid pressure is obviated. This further valve 7 is electromagnetically controlled by devices 40, 41 having armatures 42, 43 operating spring biased valves 13, 37. Armature 42 can open valve 13  which supplies pressurized fluid to the piston of valve 7 which moves to allow pressurized fluid to pass via pipe 14 to the piston of valve 6 which in turn opens the pressurized fluid supply line to the main actuator piston 3 which moves upwards to close the switch contacts. Conversely armature 43 can open valve 37 which allows the pressurized fluid to pass to a low-pressure chamber 17, when valve 7 moves to cut off the supply of pressurized fluid to valve 6, which valve itself then moves to a position where the pressurized fluid under the main actuating piston can escape to the lowpressure chamber 17 and the piston 3 descends thus opening the switch contacts.
Patent GB-968845-A (GB)
Title: Improvements in and relating to magnetic recording
IPC: G11B5/49
Filed: 1960-09-29
Abstract: 968,845. Magnetic recording &c. heads; television. SYLVANIA ELECTRIC PRODUCTS Inc. Sept. 29,1960 [Sept. 29, 1959], No. 33427/60. Addition to 926,384. Heading G5R. Improved head, operating as in the parent Specification has the saturable plate comprising a vacuumdeposited layer 18 of rectangular B-H characteristic bridging the gap between laminations 12,14 mounted to a glass block 10 and energized by cores 20, 22.  The signal head-member, 34, comprises a pair of glass plates 42, 44 with similar deposited layers 46 and butted together to provide the transducing element 36a and magnetic return circuit members 38, 40.  Embedded wires 50 surround the centre element 36 and are dimensioned so as to form with a magnetic shield 35 a transmission line matched to those feeding a pair of driver tubes 54, 56. Losses are also reduced by slotting the coatings 46,18.
Patent GB-355592-A (GB)
Title: Process of and apparatus for lining pipes with protective materials by centrifuging
IPC: B05C7/04
Filed: 1930-11-07
Abstract: <PICT:0355592/III/1> In coating the inside of a pipe or similar article a with a protective material such as bitumen or cement, by rotating the pipe while resting on live rollers b, b<1>, the pipe is kept in contact with the rollers by magnetic force.  As shown, an electromagnet e is placed between the rollers.  In modifications, Figs. 2 and 3 (not shown), a magnetic idle roller is placed between the live rollers, or the live rollers themselves are magnetic.
Patent GB-1145896-A (GB)
Title: Fluid conduit coupling
Inventor: RAYNOR TERENCE ROBERT
IPC: F16L37/098
Filed: 1966-07-26
Abstract: 1,145,896. Pipe couplings. AMP Inc. 1 May, 1967 [26 July, 1966], No. 33573/66. Heading F2G. A coupling member 2 has an encircling collar 18 through which apertures 10 extend for receiving, on a member 1, axially-extending arms 6 which, when the members are mated, are deflected resiliently inwardly to enter the apertures and subsequently :return to the initial position thereof so that shoulders 8 on the arms latch behind shoulders 21 of the apertures. A resilient buffer ring 16 is compressed to urge the shoulders together to retain the members in engagement. The members may be of synthetic plastics material, and there may be a sealing ring 9 to promote fluid-tightness of the coupling. Members 1 or members 2 may be formed integrally to provide T or elbow junctions, and four members may extend radially from a common junction to be connected and supported by an integral, rectangular frame.
Patent GB-809567-A (GB)
Title: Mirror
Inventor: JOHNSTON JAMES
IPC: A47G1/02
Filed: 1956-11-02
Abstract: 809,567. Mirror frames. UNIVERSAL PLASTICS Ltd. Oct. 1, 1957 [Nov. 2, 1956], No. 33574/56. Class 11 A mirror comprises a sheet of silvered glass 10 in combination with a one-piece moulding of resilient plastic material in the form of a closed figure which has a single groove or channel 16 in the inner circumferential face and which can be deformed sufficiently to enable it to be snapped over the edge of the silvered glass 10 which will be retainer in.. the groove or channel 16. The moulding is provided with an integral lug so that the mirror can be attached against a wall 14 by a screw 20
Patent GB-440294-A (GB)
Title: Combined pump and agitator for solution used in magnetic crack detection
IPC: F04B15/02
Filed: 1934-11-22
Abstract: 440,294. Diaphragm pumps. EQUIPMENT & ENGINEERING CO., Ltd., and SWIFT, H. B., 2, Norfolk Street, Strand, London. Nov. 22, 1934, No. 33598. [Class 102 (i)] Apparatus for pumping liquid containing iron particles in suspension, for use in the magnetic detection of cracks in iron, comprises a rod F operating a diaphragm pump C and carrying a stirring disc H. The diaphragm C has a central hole controlled by the rod F, or holes D<1> controlled by a flap valve E. Discharge takes place through channels J, L and a check valve K<1>. The return stroke is effected by a spring G. The pump is situated in a sump B at the bottom of a receptacle M. The disc H may be given an oscillating movement by means of projections on the disc engaging helical grooves in the sump.