baber/WOPTO huggingface dataset:
Patent GB-887945-A (GB)
Title: Removal of metallic contaminants from petroleum oils
IPC: C10G21/06
Filed: 1959-04-23
Abstract: A metal-contaminated petroleum fraction containing constituents boiling above 950 DEG F. is purified by subjecting the fraction to an initial thermal treatment at a temperature of more than 700 DEG  F. and not more than 900 DEG  F. for a period of 0,1-5 hours, thereafter contacting the fraction in a solvent precipitation zone with 0,1-10 volumes (based on the volume of the fraction) of a hydrocarbon having a boiling range within the range 55-400 DEG  F., and with a gaseous hydrogen halide soluble in the fraction, to precipitate and coagulate the metallic contaminants, and recovering an oil of reduced metallic contamination.  The process is applicable to the removal of complex organometallic compounds (e.g. of iron, nickel or vanadium) of the porphyrin type from petroleum gas oils and residues.  The process also effects the removal of asphaltenes.  The hydrocarbon employed in the solvent precipitation zone may be an aliphatic or naphthenic C5-C10 hydrocarbon or a mixture of such hydrocarbons. Preferably, it is a petroleum naphtha, while the preferred hydrogen halide is HCl. The oil from the solvent precipitation zone may be further treated with liquid anhydrous sulphur dioxide. In the examples, a topped petroleum crude is heated for 4 hours at 725 DEG  C. and then treated with n-pentane (or C6-C7 naphtha) and HCl gas, and optionally with liquid SO2. Apparatus is described in which crude petroleum is fractionated by distillation and the residual fraction (and also, if desired, the heavy gas oil fraction) is subjected to the initial thermal treatment and then to the solvent precipitation step.  In this latter step, naphtha from the petroleum fractionation may be used as the hydrocarbon, while liquid SO2 as well as HCl gas may be introduced into the solvent precipitation zone.  Alternatively, the total crude petroleum may be subjected to the thermal treatment and then to the solvent precipitation and finally fractionated, part of the naphtha cut being recycled to the solvent precipitation zone.
Patent GB-1178243-A (GB)
Title: Improvements in or relating to Pressure Gauges.
Inventor: BEAVITT ALAN ROBERT
IPC: G01L21/00
Filed: 1966-03-29
Abstract: 1,178,243. Pressure gauges. PLESSEY CO. Ltd. March 28, 1967 [March 29, 1966], No.13959/66. Heading G1L. In a pressure gauge, for measuring gas pressures in the region of 10<SP>-9</SP> to 10<SP>-5</SP> Torr, a vane 1, having a smooth reflection surface and carrying a mirror 12, in suspended by an alloy strip 9 above tantalium metal foil hector strips 2 such that molecules of gas at a pressure to the measured well, on leaving the source, stroke the reflective surface to cause movement of the vane 1 which movement is measured by a spot of light reflected on to a scale by the mirror 12. The heater strips 2 are heated by leads 7 from a current source and the temperature difference between the strips 2 and a copper base 3 is measured by a platinumrhodium thermocouple attached to leads 8. The base 3 is cooled by fluid passing through tubes 4. The vane 1 is formed by evaporating aluminium through a star shaped mark on to a revolving glass substrate arranged with a melting agent and then floating the vane off the substrate in water.
Patent GB-328449-A (GB)
Title: Improvements in or relating to illuminating apparatus for photographic and other purposes
IPC: G03B15/06
Filed: 1929-05-04
Abstract: 328,449. Boardman, R. V. May 4. 1929. Light and other radiations, treating diseases with.-A projector for therapeutic purposes comprises a square, hexagonal, or other shaped frame or housing adapted to support number of planoconvex or other quartz or like lenses d at an equal distance from a single mercury vapour or like lamp and a corresponding number of reflectors f each of which is pivotally mounted about an axis at right angles to that of its associated lens by means of substantially parallel arms e<2> integrally or otherwise fixed to a ring c which constitutes the lens mounting and is adapted to be slid into position between oppositely disposed channels or flanges a<4> fitted to the exterior of the frame in such a manner that the ring and the reflector may be rotated about the axis of the lens. The housing may comprise six square walls a three of which are associated with inwardly inclined square bottom walls a<1> connected to or supporting a central triangular wall a<2>, the intermediate spaces being closed by triangular walls a<3>. The square walls a, a<1> are provided with centrally arranged circular apertures for the lenses d and with means for supporting diffusers. colour screens, or shutters in front of or behind the apertures. The reflectors f may be of silvered glass carried by sheet metal frames, and the character of the beams may be modified by using reflectors of varying degrees of absorption. The reflectors may be provided with lugs f<1> having holes for engagement with pivot pins e<3>, spring washers or the like being arranged between the lugs and the arms c<2> for holding the reflectors in any desired positions of adjustment. Each ring e which is made of sheet metal, fits upon the outer face of the lens and has three or more integral projections adapted to be bent over the edge of the lens. The lamp may be supported by a bridge c fitted with suspension hooks or eyelets c<1>, or the projector may be mounted on a stand. The projector may be used in conjunction with externally arranged reflectors which may be fixed to or adjustably carried by, the walls of the studio or other apartment or by separate tripods or other stands.
Patent GB-1454596-A (GB)
Title: Process for making salts of 3-isopropyl-2,1,3-benzothiadiazin- 4-one-2,2-dioxide
IPC: A01P13/00
Filed: 1974-03-29
Abstract: 1454596 Salts of 3-isopropyl-2,1,3-benzothiadiazin-(4)-one-2,2-dioxide BASF AG 29 March 1974 [31 March 1973] 14006/74 Heading C2C An aqueous solution of substantially pure salts of 3-isopropyl-2,1,3-benzothiadiazin-(4)- one-2,2-dioxide (Bentazone) is prepared from a solution of the crude compound in an organic solvent by extracting the organic solution in a first stage(s) at a pH of 2 to 2À5 with a first aqueous medium to remove impurities soluble therein, and in a subsequent stage(s) with a further aqueous medium containing sufficient alkaline material to convert the bentazone to the salt.
Patent GB-1529890-A (GB)
Title: Method of using a protein mixture derived from liver
IPC: A61K38/00
Filed: 1976-04-07
Abstract: 1529890 Using a protein mixture derived from liver PALOLAB PHARMACEUTICALS CORP 7 April 1976 [7 April 1975] 14147/76 Addition to 1407807 Heading A5B Acutalyn crude, the crude product derived from step (h) of Patent 1407807, are used in non-human mammals for: facilitating tissue repair, simultaneously facilitating tissue repair and inhibiting inflammation, increasing the rate of urea nitrogen synthesis, reducing peripheral blood ammonia, treating hepatitis, cirrhosis of the liver, scar tissue, and/or arthritis. The acutalyn crude may be administered by injection and may be in conjunction with a corticosteroid e.g. hydrocortisone.
Patent GB-299762-A (GB)
IPC: H01B7/18
Filed: 1928-05-14
Abstract: 299,762. Felten & Guilleaume Carlswerk Akt.-Ges. Oct. 31, 1927, [Convention date]. Addition to 295,923. Armouring cables. - In order to render watertight a submarine cable of the type described in the parent Specification, in which high tensile steel wires are inserted between light metal profile wires to form armouring, the steel wires are now formed with lead coverings so that the deep-sea water pressure may force the lead into gaps in the armouring. In the embodiment, a four-quad telephone cable is armoured with trapezoidal-sectioned light metal wires A recessed for steel wires B. The wires B have lead coverings C, and a thin layer of guttapercha D covers the cable.
Patent GB-801282-A (GB)
Title: Improvements relating to systems for the detection of railway track switches
IPC: B61L5/10
Filed: 1955-05-17
Abstract: 801,282. Railway points detectors; detecting spread of rails. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and DENNISON, H. F. April 27, 1956 [May 17, 1955], No. 14178/55. Class 105. In a railway points detector in an indication circuit and/or interlocking circuit each stock rail a, b has a rod A, B connected thereto adjacent that part against which the points tongue abuts so that relative movement between the two rods due to the spread of the two stock rails and consequent wide-to-gauge condition, opens a normally closed contact included in a circuit for giving an indication of said condition, e.g. in the detection and/or interlocking circuits. These normally closed contacts are preferably accommodated in the usual lock and detector mechanism of the points. As shown in Fig. 1, where separate lock and detector mechanisms X, Y are provided for each points tongue, the rods A, B are taken one into each mechanism to operate a contact device as indicated in Fig. 3. Each rod, e.g. A, has a flat surface 0 which terminates in a ramp 8 and a roller R normally rests on the surface O at the foot of the ramp so that movement of rod A in the direction of the arrow W moves the roller up the ramp thereby, through a link T between roller R and contact arm P pivoted at V to open the contacts Q, Q<SP>1</SP>. When a single points lock and detector mechanism is provided to serve both points tongues the rods A and B enter that mechanism to operate an electric switch similar to that shown in Fig. 3.
Patent GB-419674-A (GB)
Title: Improvements in and connected with rail bearer plates or railway sleepers
IPC: E01B3/24
Filed: 1933-05-16
Abstract: 419,674. Railway sleepers. MAYO, C. R., 155, Dashwood House, Old Broad Street, London. May 16, 1933, No. 14199. [Class 104 (ii).] A pot sleeper consists of a metal plate having edge portions bent down to form spikes &c. a<1>-a<4> to engage the ballast, and arranged two along the line of the rail and one at each side. Strengthening ribs b, d, g may be formed on the plate, and the inner ends d<1> of the ribs d may be cut and pressed up to form a chair for the rail. The plate may be slightly dished.
Patent GB-474962-A (GB)
Title: Improvements in and relating to chucks or like revolving work-holding devices
IPC: B23B31/32
Filed: 1937-05-21
Abstract: 474,962. Sockets. AKTIEBOLAGET NOMY. May 21, 1937, No. 14207. Convention date, June 2, 1936. [Class 83 (iii)] In a split socket wherein the jaws are carried by a flexible disc, counterweights are arranged on the disc so as to oppose the centrifugal force of the jaws tending to release the work during rotation. The flexible disc 11 is secured to a body 15 by screws 14 and carries jaws 12 separated by slots 13. Counterweights 25 on the disc, located between webs 16 on the body 15, tend by centrifugal action to maintain the jaws closed during rotation or may supply the closing force if the work is a push fit in the jaws when the latter are in the released position. The body 15 is attached to the machine spindle 19 by screws 18, and the disc 11 may be flexed to release the work by means of a push spindle 22 rotatable by a handle 23 and having a screwed end engaging a nut 21 attached to the end bearing 20 of the spindle. The disc may be flexed electromagnetically or by other means. Projections 24 on the jaws locate the work axially. The weights 25 and jaws 12 may be formed integral with the disc or attached thereto.
Patent GB-183301-A (GB)
Title: Improvements in mouth props
IPC: A61B1/24
Filed: 1921-05-21
Abstract: 183,301. Dental Manufacturing Co., Ltd., and Vignale, O. R. May 21, 1921. Gagging.appliances. - A dental mouth prop consists of two flat U-shaped relatively movable members 7, 8 which are fixed in adjusted position by nuts 4 engaging screws formed on the ends of side arms 5 of a tongue depressor. The members are curved to the shape of the jaws and have ledges 1 for the teeth.
Patent GB-475928-A (GB)
Title: Improvements in or relating to television
IPC: H01J31/32
Filed: 1936-05-20
Abstract: 475,928. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd., and LUBSZYNSKI, H. G. May 20, 1936, No. 14243. [Class 39 (i)] In transmitting images to a distance as described in Specification 442,666, the mosaic screen 4 is of a material for which the ratio of secondary electrons emitted to primary electrons arriving increases at A above unity and then decreases at B below unity as the velocity of the primary electrons increases. Electrons arrive at the screen 4 from the photo-electric cathode 1 with a velocity between those corresponding to the points A and B, and preferably with the velocity giving maximum secondary emission, to charge the mosaic elements positively and the electrons of the scanning ray 12 have a high velocity above the point B so that the ray reduces the potentials of the element to an equilibrium value. The photo-electrons may be accelerated by a ring 3 joined to the anode 9 of the scanning electron gun and may be focused by a long coil or by a short coil 2 giving magnification or reduction of the electron image. The optical image may be cast obliquely on to the side of the cathode 1 facing the ring 3 or may be cast on to the back of a transparent or grid-like cathode 1, or the cathode 1 and screen 4 may be oblique to the lens 2 and scanning by the ray 12 may then be arranged to compensate for distortions of the image. The elements of the screen 4 are of aluminium, carbon, beryllium or lithium borate ; or material of low workfunction such as zinc sulphide or lithium borate may be deposited on a mica backing. In modifications, the mosaic screen may be replaced by an insulator sheet of transverse resistance above 10<12> ohms per cm. or may comprise nickel elements on a mica sheet. Deposition of caesium on the screen 4 during sensitization of the cathode 1 is avoided by heating the screen, or by temporarily covering it with a flap, during the sensitization.
Patent GB-684348-A (GB)
Title: Improvements in or relating to apparatus for measuring gravity or weight of a liquid
IPC: G01N9/16
Filed: 1950-06-08
Abstract: 684,348. Electric weighing - apparatus. LIQUIDOMETER CORPORATION. June 8, 1950 [Nov. 14, 1949], No. 14316/50. Class 40 (i) [Also in Group XXXVI] Apparatus for measuring the specific gravity of a liquid comprises a series of floats, each of a different specific gravity, to be immersed in the liquid so that those having a smaller specific gravity will rise, to operate switching mechanism and vary the value of an electrical element whose resultant value may be determined. This may be combined with a volume indicating device to determine the weight of liquid in a tank. Each float 22, Fig. 1, is contained in a separate chamber 20, and on rising rests against stops 26 thereby short-circuiting a predetermined portion of a resistance, 30, whose resultant value may be determined. The rising float may alternatively be attached to a pivoted arm so that the other end of the arm closes a switch contact, directly or indirectly as in Figs. 5, 6 where the float 102 is attached by an arm 100 to a hinged frame 104 supporting two magnets 108, which on moving attract with them two iron pole pieces 128 attached to a switch rocker arm 126, whereby contacts 129 short-circuit spring contacts 130. In other embodiments the floats are used to short-circuit parts of an inductance in a tuned circuit whose frequency is measured, or alternatively, Fig. 10, the floats 244, made of ferrous material, modify the inductance of coils 240 on rising to affect the resonant frequency. To determine the weight of liquid in a tank, Fig. 8, the position of a float 164 varies the position of a permeable core 166 in a coil 162, which is one arm of a bridge circuit, so that the bridge output indicates the level of the liquid in the tank. This output, across' transformer 182, is shunted by a resistance 152-158 whose value depends, as above described, on the specific gravity of the liquid, so that the indicator reading shows the weight of liquid in the tank. The bridge arm can be a variable condenser, and the varying specific gravity of the liquid could be compensated by a variable inductance in series with the bridge output transformer.
Patent GB-641093-A (GB)
Title: Improvements in or relating to electro-mechanical tele-communication apparatus
IPC: H04L25/20
Filed: 1947-05-30
Abstract: 641,093. Code telegraphy. KEMSLEY NEWSPAPERS, Ltd., and HARRISON, A. May 30, 1947, No. 14416. [Class 40 (iii)] [Also in Group XL (c)] In a signalling system in which positive and negative impulses are transmitted over a line 9 to operate an electromechanical printer or recorder the impulses are applied through a potential divider to the grid of a normally conducting valve 2, the printer or recorder being connected to the secondary of a transformer, the primary of which is included in the anode circuit of the valve. A capacitor 7 is provided to byepass line noise.
Patent GB-1391692-A (GB)
Title: Transport system in apparatus for automatically performing  chemical analysis
IPC: G01N35/02
Filed: 1972-03-28
Abstract: 1391692 Endless conveyers F HOFFMANNLA ROCHE & CO AG 28 March 1972 [29 April 1971] 14429/72 Heading B8A [Also in Division G1] Sample containers 9 in a chemical analysis apparatus are each positioned in one of a series of disconnected contacting conveying members 10 with their base in contact with a support surface 8. A driven sprocket 14 positioned at one or both ends of the conveyer path engages the conveying members to move them intermittently through the apparatus. The containers may be removed from the apparatus by the removal of a plug (29) Fig. 4 (not shown) in the supporting surface 8. A heating element 18 and cooling pipe (19) Fig. 2 (not shown) are provided to control the temperature of the contents of the containers. A centrifuge Fig. 7 (not shown) is provided beneath a further aperture (44) in the support surface and comprises a cylindrical container support (41) mounted on a rotatable arm (40). A ram (46) is mounted beneath the support (41) to pass therethrough to close the aperture (44) in the support surface. When a sample is to be centrifuged the ram is withdrawn and thereby lowers a container into the support (41) or the ram is retracted therebelow. A further ram (55) mounted above the aperture (44) assists in the transfer of the container.
Patent GB-1299326-A (GB)
Title: Ionization smoke detectors
IPC: G08B17/11
Filed: 1971-05-12
Abstract: 1299326 Smoke detectors NITTAN CO Ltd 12 May 1971 [8 June 1970 27 Aug 1970] 14433/71 Heading G1N [Also in Division H1] In an ionisation smoke detector the common electrodes of two series connected, open and closed ionisation chambers 20, 10 are divided into two portions 131, 132 and 231, 232, the common junctions of the portions being respectively connected to the gate electrodes of FET's 31, 32. The source electrodes of FET's 31, 32 are repesectively connected, via Zener diodes 71, 72, to the control electrodes of SCR's 41, 42 connected in series between the supply so that if one of the FET's operates erroneously an alarm is not given. By connecting a pair of Zener diodes in parallel with the SCR's, Fig.3 (not shown), the erroneous FET may be detected.
Patent GB-592223-A (GB)
Title: Apparatus for extracting moisture from carpets and the like after cleaning
IPC: A47L11/30
Filed: 1944-07-28
Abstract: 592,223. Suction cleaners. HARVEY, C. G. July 28, 1944, No. 14481. [Class 8 (i)] An apparatus for extracting moisture from carpets and the like after cleaning comprises a suction nozzle A having a long narrow inlet and formed with its cross sectional area constant between the inlet B and the outlet, a flexible tube D by which a nozzle handle C is connected to a stationary separator tank E having one or more screens H disposed between the tank inlet and outlet, iand a conduit F connecting the tank outlet to a suction pump not shown. The screen or screens H of wire mesh .or perforated metal plate are removable. Dirt collected in the tank is removed through the door J and moisture can be run off through a drain cock L.
Patent GB-282590-A (GB)
Title: An improved friction drive for screw presses
IPC: B30B1/22
Filed: 1927-05-30
Abstract: 282,590. Georg, O. May 30, 1927. Presses, mechanical.-Relates to friction screw presses of the type involving, staggered side discs which both work from the centre and comprises means for moving both discs axially. As shown, the disc 1 of the screw 2 is engaged for the descent by a disc 5 on a shaft 9 driving through gears 11, 12 the disc 10 for the ascent. Both discs are moved axially simultaneously through elbow levers 15, 16 by a link 17 operable by a hand lever 18 or automatically by a projection 21 on the ram 3 engaging stops 19, 20. In a modification, the disc shafts are operated through a pair of levers having a common central pivot.
Patent GB-399599-A (GB)
Title: Improved process of and apparatus for cleansing raw or manufactured wool
IPC: D01G9/00
Filed: 1932-05-23
Abstract: 399,599. Wool-cleaning processes. PATERSON, J. F., Inveresk, Benalla Road, Shepparton, Victoria, Australia. May 23, 1932, No. 14572. [Class 138 (i).] A process for cleansing raw or manufactured wool consists in dusting the wool with finelydivided dry raw gypsum, revolving it in one or more drums in a machine, and discharging it on to an endless continuously-moving vibratory perforated conveyer by which it is taken into a conduit where it is treated by suction before delivery from the machine. In the construction shown, drums 4 containing wool dusted with dry raw gypsum are rotated by means of an electric motor 6, and afterwards discharge the wool on to an endless conveyer 18. The conveyer, which is perforated or made of slats, is driven by the motor 6 through the medium of sprockets 17, which are mounted on shafts carrying pulleys 9. The pulleys are capable of limited movement on rails 10, such movement being imparted, by means of a crank 12 and connecting-rod 11, from the spindle of a driven pulley 13. The wool passes under a tunnel 20 where it is subjected to suction drawing the gypsum and dust through a pipe 22, to be collected in a chamber 24 fitted with a gauze filter 25.
Patent GB-591778-A (GB)
Title: Improvements in or relating to electrical measurements in h.f. systems
IPC: G01R29/08
Filed: 1944-08-01
Abstract: 591,778. Discharge lamps. FERTEL, G. E. F., and WRIGHT, C. S. Aug. 1, 1944, No. 14699. [Class 39 (i)] [Also in Group XXXVI] Measuring apparatus for the measurement of electric field potentials in a coaxial line or waveguide comprises an elongated glass tube 1 filled with neon or other gas which can be excited to glow discharge by high frequency energy and having an electrode 2 sealed into one end. The electrode 2 may project slightly from the end of the glass tube to form a probe. The tube 1 is located within a metal sleeve 3 and is aligned coaxially by metal collars 4 at both ends of the sleeve. The lower collar has a conical exterior to enable the instrument to be seated in an opening in the wall 6 of a waveguide or coaxial line. The upper end of the tube 1 is attached to the sleeve 3 by cement 7. The sleeve is provided with a longitudinal slot 8 or a row of holes through which the height of any glow discharge in the tube 1 may be observed, the length of this being proportional to the peak voltage or power being developed in the waveguide or coaxial line at the point of insertion of the measuring instrument. The sensitivity may be adjusted by surrounding the tube 1, except for an observation opening, with a layer of semiconducting material such as rubber which has considerable dielectric loss. The waveguide or line may have a longitudinal slot so that the instrument can be slid along to enable the whole standing wave to be examined.