baber/WOPTO huggingface dataset:
Patent GB-1316992-A (GB)
Title: Contacting and/or agitating liquids with gases
IPC: C12M1/04
Filed: 1970-06-18
Abstract: 1316992 Bubbling gases through liquids MAGYAR ASVANYOLAJ ES FOLDGAZ KISERLETI INTEZET 18 June 1970 [30 June 1969] 29587/70 Heading B1R Gas/liquid contact apparatus comprises vessel 1 containing parallel vertical columns 4, liquid inlet 14 and outlet 17, gas inlet pipes 5 extending downwardly into columns 4 and perforated at 18 for passage of gas bubbles into the liquid, baffles 25 to separate gas and liquid, and gas outlet 24 at the top of the vessel. Liquid is induced upwardly in columns 4 by the flow of gas bubbles and flows downwardly between the columns. The columns may occupy at least 10%, preferably 30-70%, of the cross-sectional area of the vessel. In Fig. 1 vessel 1 is surrounded by hot or cold jacket 2. Tubes 4 are suspended via concentric gas inlet pipes 5 from gas distributor chambers 6 and 7, which are separated by hexagonal-section wall 8 and surrounded by jacket 9. Hexagonal plate 11 divides the space above the liquid into gas collector chambers 12 and 13. Liquid fed in at 14 is conducted by tubes 15 to manifold 16. Gas fed in at 19 past baffle 20 in chamber 6 passes through tubes 5 and 4 and enters chamber 12. Blower 21 then impels the gas via pipes 22, 23 into chamber 7 from where it passes to further tubes 5 and 4, chamber 13, and finally outlet 24. In collector chambers 12, 13 the gas-liquid mixture is separated by baffles 25. The top of columns 4 may be above, at, or below the liquid level. In Fig. 4 a single column for treating two liquids of different density is shown. Gas introduced via tube 5 is entrained at bores 18 in the lighter liquid introduced into tube 26. and at bores 18a in the heavier liquid in tube
Patent GB-300007-A (GB)
Title: Improvements in potato and like dressing machines
IPC: B07B13/00
Filed: 1927-11-05
Abstract: 300,007. Marshall, J. Nov. 5, 1927. Oscillating sieves; rotary sieves.-In apparatus for dressing potatoes of the kind comprising a flat elongated sieve a immediately below a rotary cylindrical sieve, crank eccentric or cam mechanism is provided for imparting a rapid vertical vibrating movement to the sieve a. In the construction shown, the sieve is hinged at its lower longitudinal edge, the apposite edge being supported on a block b. The actuating mechanism consists of a crank f operating a lever d pivoted at c and connected to the sieve by a link e. Preferably the lever d has a spring controlled extension d<1>.
Patent GB-707865-A (GB)
Title: Flow control filter element
Inventor: WHIPPLE JOHN ELIJAH
IPC: B01D29/075
Filed: 1952-11-24
Abstract: 707,865. Filters. FRAM CORPORATION. Nov. 24, 1952, No. 29655/52. Class 46 An element comprising a stack of members of cellulosic material arranged about and spaced from a perforate tubular core is provided with end plates, one of which is urged towards the other by resilient means, and the core is further provided with spaced openings, so that as shrinkage (and hence compression) of the stack occurs during use, movement of the one end plate uncovers the core openings progressively to provide bye-pass passages and preferably maintain constant the flow through the filter. Discs 64 of paper or the like are compressed, between a lower end-plate 61 fixed to a perforate core tube 51 and an upper end-plate 67 with an inner collar 69 sliding on the tube 51, by a spring 71 engaged between an out-turned lip 70 on the tube 51 and the upper surface of the end-plate 67. The compression is such that a filtrate space 66 may be left between the stack and the tube 51 without the discs getting out of alignment. Further, the spring 71 serves to take up shrinkage which occurs on absorption by the stack of liquid to be filtered, the consequent reduction in flow rate being compensated by the uncovering progressively by the collar 69 of openings 54 to 58, of predetermined size, in the tube 51. The assembly is located about a further discharge tube 29 welded by end-pieces 31 and 38 to bottom and top walls 28 and 35 respectively having a perforated outer cylinder 33 between them, the upper end piece 38 having holes 42 co-operating with a hole 46 in a washer 45 to provide a permanent bye-pass. The size and disposition of the -openings 54 to 58 are preferably such that the initial flow through the -element is substantially maintained in spite of axial shrinkage of the stack.
Patent GB-384404-A (GB)
Title: Electric mercury switch
IPC: H01H29/20
Filed: 1931-10-26
Abstract: 384,404. Mercury switches. SCHNEIDER, J., 161, Rue Numa Droz, La Chaux de Fonds, Switzerland. Oct. 26, 1931, No. 29676. Convention date, Nov. 1, 1930. [Class 38 (v).] A mercury-tube switch 3 is mounted within the lid 2 of a box 1 and is operated by rotating the lid. The degree of rotation is limited by a slot in the base 1 engaged by a projection 13 on the lid. In modifications, the cover may contain more than one mercury tube.
Patent GB-356961-A (GB)
Title: Improved apparatus for playing a game
IPC: A63F7/06
Filed: 1930-10-04
Abstract: 356,961. Table games. BURNLEY, C. P. and ADAMS BROS. & BURNLEY, Ltd., Elmgrove Road, Harrow, Middlesex. Oct. 4, 1930, No. 29732. [Class 132 (ii).] The detachable table top or playing board used for an indoor game simulating golf is provided with elastic cushions at its sides and ends as well as the usual hazards. The table comprises a plywood sheet a, Fig. 1, covered with billiard cloth, green baize or other suitable cloth a<1>, stiffened by a framing of battens b, and having cushions c composed of strips of wood recessed to receive and clamp a length of rubber tubing d, which may also be covered if desired. The holes, and hazards as sand bunkers, mounds and banks are made from pressed sheet metal. At a hole, for example. the plywood a is apertured and recessed, so that the rim e<1> of a cup e representing a hole may fit flush with the covering a<1> which is held thereunder, the cup being fixed by a screw stud g attached thereto passing through a dished washer h, and a nut i. Dish-shaped pressings representing sand bunkers may be similarly fitted. Pressings representing mounds or banks k, Fig. 3, are covered with baize k<1> which with the covering a<1> is secured by clamping the pressing, in the recessed board, by means of screw studs m and nuts n. The tees which may be distinctively coloured are marked for example by adhesive wafers and various hazards as gateways, arches, bridges, level crossings, walls may be fitted. Short legs with screws p may be fitted to the board, for levelling, when used on an ordinary table, or longer legs may be provided, adapted to stand on the floor. The game is played similarly to ordinary golf, the balls being projected by cues.
Patent GB-799874-A (GB)
Title: Automatic clutch device for automobile vehicles
IPC: F16D45/00
Filed: 1956-09-28
Abstract: 799,874. Friction clutches. PRACHAR, C. Sept. 28, 1956 [Oct. 5, 1955; March 31, 1956], No. 29746/56. Class 80 (2). In an automatic clutch having centrifugally controlled engagement and disengagement for starting and stopping and an electromagnetic device for declutching when gear changing a flywheel 2, mounted on a driving shaft 3 carries the windings 4 of an electromagnet. An armature plate 5 is arranged to be axially slidable and to rotate with the flywheel 2 by means of the rods 6, 61 and is normally loaded by springs 8 against an abutment 10 on a non-magnetic sleeve 11 fixed to the flywheel 2. A clutch disc 13 is slidably keyed to a driven shaft 16 and a pressure plate 17 rotates integrally with the flywheel 2 by means of radial pins 20 engaged in slots 21 in the sleeve 11. The pressure plate 17 is formed with radial apertures 18 housing balls 19 and formed with a bevel 27. A dished member 26 is adjustably secured to the sleeve 11 by bolts 28 and spring-loaded pistons 23 in the sleeve 11 engage the pins 20 and keep the pressure plate 17 engaged with the dished member 26, the balls 19 contacting a conical surface 25 on member 26. The windings 4 of the electromagnet are fed from the conductor 33 through brush 34 to the insulated conducting sleeve 36 secured to member 26 and then through a conducting blade 38 and an insulated conductor 39. The circuit is controlled by a switch which is closed only when the accelerator pedal 43 is inoperative and a switch which is closed on movement of the gear lever 45. With the electromagnet not energized an increase in speed of the driving shaft 3 causes centrifugal force to throw the balls 19 outwards and force the pressure plate to the left engaging the clutch. For gear changing energization of the electromagnet attracts the armature 5 to the left and disengages the clutch. In an alternative arrangement the circuit can be controlled by the charging current supplied by the engine dynamo. The armature 5 may also be damped by the use of internal and external packing rings to create an air chamber supplied by an orifice and a lever may be fitted to lock the pressure plate 17 into engagement. A free wheel device may be fitted to lock the clutch in the engaged position to enable the engine to be used as a brake or hold the vehicle on a slope.
Patent GB-1431990-A (GB)
Title: Glass-ceramic article having a metal coating thereon
IPC: C03C10/00
Filed: 1973-06-22
Abstract: 1431990 Glass-ceramic article ISHIZUKA GARASU KK 22 June 1973 29800/73 Heading C1M A glass-ceramic has a surface composed of one or more areas (A) of a glass-ceramic (X), which is of the same composition as the glassceramic underlying the surface (A), and at least one area (B) of copper and/or silver, the article having a smooth surface at the junctions between areas (A) and (B), the copper and/or silver layer being bonded to an underlying substrate of glass-ceramic (Y) through an intermediate layer comprising a dispersion of copper and/or silver and copper oxide and/or silver oxide in the glass-ceramic (Y), glass-ceramics (X) and (Y) being fused to each other. Glassceramics (X) and (Y) may be the same. The article may be formed by: (1) contacting a first molten mass of a glass crystallizable to (X) with a second molten mass of a glass crystallizable to (Y), which second mass comprises at least one oxide of Cu and/or Ag dispersed therein in a total amount of 0À05-5% by weight, so that the masses fuse together but do not intermix; (2) forming the fused masses into a desired article (e.g. a sheet, tube or bottle) in which areas (A) and (B) have a smooth profile; and (3) heating the article in a reducing atmosphere to devitrify the glasses to glass-ceramics (X) and (Y), and to cause the Cu and/or Ag ions formed from the said oxide(s) to migrate to the surface at areas (B), where they are reduced to metal particles. A continuous metal layer may be formed by (4) heating in an oxidizing atmosphere to form Cu and/or Ag oxide(s); and (5) heating to reduce the oxide(s) to metal. The metal layer is preferably 0À5-2 microns thick. Preferably the molten masses are contacted at viscosities of 10<SP>2</SP>-10<SP>3</SP> poises, and preferably the reducing atmosphere is hydrogen, carbon monoxide, methane, ethane, propane, butane or town gas.
Patent GB-1016777-A (GB)
Title: Process for the production of pigment
Inventor: HUGHES WILLIAM
IPC: C09C1/36
Filed: 1963-07-29
Abstract: Pigmentary TiO2 is produced by calcining "conditioned" TiO2, leaching the TiO2 with an aqueous liquid, separating the TiO2, containing a reduced amount of water-soluble compounds, and thereafter subjecting a slurry of the leached TiO2 to sand-milling.  "Conditioned TiO2" is hydrous TiO2 produced by the sulphate process to which conditioning agents have been added, such agents including compounds of Zn, Sb, Sn, K, Na, Al and P.  TiO2 conditioned with, e.g., a rubile-inducing agent, say a Zn compound in amount .01% to 1.3%, is calcined at 800 DEG  to 1100 DEG  C. and may be milled before being contacted at a temperature above e.g. 90 DEG  C. with water or an aqueous solution of mineral acid, e.g. H2SO4 in concentration 0.5% to 10%.  The mixture may be cooled to below 60 DEG  C. if the TiO2 is to be separated under sub-atmospheric pressure after leaching. Alternatively, the calcined TiO2 at a temperature of 500 DEG  to 1000 DEG  C., is discharged directly into aqueous liquid at ambient temperature. The TiO2/aqueous liquid mixture is agitated and, after the desired time, the TiO2 is separated, e.g. by filtration, centrifugation or decanitation, and may be water-wasted.  The TiO2 is slurried with water and a dispersing agent, e. g. sodium silicate and/or sodium polyphosphate, or an organic agent such as an alkanolamine, is preferably added in concentration up to 3% before sand milling, i.e. vigorous agitation with inert particles.  After milling, the TiO2 may be further treated, say by coating with hydrous oxides, e g oxides of Al, Si, Ti, Ce and/or Zr, followed by drying and further milling, preferably in a fluid energy mill.
Patent GB-1410455-A (GB)
Title: Eye position measuring technique
IPC: G01B11/03
Filed: 1973-06-25
Abstract: 1410455 Eye position measuring ACUITY SYSTEMS Inc 25 June 1973 [11 July 1972] 29993/73 Heading H4D An eye position measuring device comprises light source 20 having sources 1-4 energized in sequence, the light reflected from the cornea of eyeball 28 being received by detector 36 whose output is compared in phase with reference signals to determine movements of the eyeball in x, y, z directions. The light sources are energized so that 1 and 4, 1 and 2, 2 and 3, 3 and 4 are energized cyclically. For x axis movement detection, the light from sources 1 and 2 and then 3 and 4 is used. If the eyeball is in its correct position, the light received by detector 36 is the same when sources 1, 2 are energized as when 3, 4 are energized. In this case a D.C. output is provided. If however the eyeball is moved, then the light received by detector 36, when sources 1, 2 are energized is different from that when sources 3, 4 are energized. In this case an A.C. signal is produced and compared in phase with an x, syncronization signal from driving source 100. The sign and magnitude of the signal from the phase sensitive detector shown gives the direction and magnitude of the x axis displacement. For the y axis displacement, energization of sources 1, 4 and then 2, 3 is used, the signal from detector 36 being processed in a manner analogous to the x axis signal. To measure z axis deviation, i.e. along the eyeball axis, the light reflected from the cornea is focused midwav between two chopping devices 252 and 250 (details, Fig. 8) when the eyeball is in its correct position. Movement of the eyeball causes movement of the focused image towards or away from a particular chopping device. This movement results in variation of the 200 Hz chopper modulation of the signal from detector 36 and the phase and magnitude of the signal from the phase detector shown gives the sign and magnitude of z axis deviation. Alternatively a single chopping device, Fig. 9, not shown, may be used. The x, y, z deviation signals may be used to control an instrument 40 to keep it in a desired relative position with the eyeball.
Patent GB-1456009-A (GB)
Title: Method for exciting and detecing resonant oscillations from electronic conductors in the earth
IPC: G01V3/08
Filed: 1973-06-25
Abstract: 1456009 Magnetic surveying CENTRAL GEOPHYSICS Ltd 18 Sept 1974 [25 June 1973] 30098/73 Heading G1N (C) The invention is based on the discovery that if steep, short-duration, D.C. pulses are applied to the ground, induced A.C. magnetic fields can be detected during and after the primary pulse. The characteristics of these A.C. field is used to determine mineral deposits such as sulphides. The D.C. primary pulses may be applied by electrodes or a transmitter loop. The A.C. fields may be measured by a detector loop or a proton-precession-magnetometer, which may be carried by a vehicle or craft. The detector circuit is gated for a short period after the termination of the primary pulse to supress unwanted transients.
Patent GB-1535077-A (GB)
Title: Method and apparatus for electrophoretic coating
IPC: C25D13/00
Filed: 1976-07-20
Abstract: 1535077 Electro-phoretic coating STANDARD T CHEMICAL CO Inc 20 July 1976 [21 July 1975 7 June 1976] 30196/76 Heading C7B Exterior and/or interior surfaces of conductive workpieces, e.g. cans, drums, heat exchangers, radiators, car wheels or oil filter caps, are electrophoretically coated by disposing each workpiece CB preferably carried on an endless conveyer strand 21 in an anodic-cathodic relationship with an application nozzle 29 e.g. in coating chamber 11, supplying e.g. from pipe 31 liquid electrophoretic coating material to the nozzle to impinge as a linear stream on to a surface of the workpiece while rotating it, e.g. mounted on a mandrel 19 fixed to a pinion meshing with curved rack 27, to coat an entire surface. After coating each workpiece may be rinsed, dried and cured e.g. in chambers 12 to 14.
Patent GB-336092-A (GB)
Title: Improvements in rotary printing machines
IPC: B41F13/54
Filed: 1929-10-04
Abstract: 336,092. Hoe & Co., Ltd., R., (Hoe & Co., Inc., R.). Oct. 4, 1929. Rotary machines.-A multi-unit rotary printing-machine of the kind in which a plurality of perfecting units 1 - - 8 are arranged in superposed decks, and folders C, D for associating the printed webs are arranged near the units, is constructed with a web supply comprising superposed running and inactive webs 10, 11; 12, 13; 27, 28; 29, 30; 47, 48; 49, 50; 51, 52; 53, 54; for each unit, located in a space substantially co-extensive with the width of the units, and web guides for leading the webs from the running web rolls around the inactive web rolls to the respective units, when the lower rolls are the running rolls. The rolls 10, 12 &c. are spaced apart to permit a spare roll s to be passed between them, and this roll can replace either of the rolls 10, 11, 12 &c. when exhausted. The units are fed alternately from the upper and lower rolls, and the arrangement is adapted to enable the rolls for two decks of units to be arranged in the space ordinarily occupied by the web rolls for a single deck machine. The rolls may be arranged above the printing units in a manner similar to that shown. The machine shown is arranged to perfect four webs by the units, 1, 2, 5, 6, and associate these at the folder C, and also to perfect four webs by the units 3, 4, 7, 8 and associate these at the folder D. The paths of the webs through the units are shown in full lines, but the webs may pass to the first guiding roll, e.g. 14 from the Toll 10 as shown in full lines, or from the roll 11 as shown by dotted lines. If it is desired to pass the webs from the units 1, 2, 5, 6 to the folder D the path of the webs from the first four rolls is as shown by dotted lines, and eight webs may be associated at the folder D, or an additional folder not shown, at the right of Fig. 1, may associate four webs from the second set of four rolls, the webs from which pass through the units 3, 4, 7, 8 as indicated by dotted lines.
Patent GB-1357329-A (GB)
Title: Detection apparatus
IPC: G01S15/06
Filed: 1970-06-23
Abstract: 1357329 Acoustic echo location systems NATIONAL RESEARCH DEVELOPMENT CORP 17 June 1971 [23 June 1970] 30316/70 Heading HAD In a system providing an audible signal indicative of the position of an object as detected by reflection of acoustic wave energy, a gain control device is arranged to increase or decrease the amplitude of the audible signal with rise or fall respectively in the level of ambient noise, so that the signal can be heard clearly. In the blind aid shown a frequency swept ultrasonic signal from transducer 11 is reflected by the object to receiving transducers 13A, 13B whose outputs are heterodyned in modulators 15A, 15B with a pulse counterpart 18A, 18B of the transmitted signal to give signals including components of beat frequency dependent on the object range. The modulators act also as multiplex encoders and sample the transducer 13A, 13B outputs alternately, being switched by the pulse trains 18A, 18B (which are derived from transmitter modulator 12 such that the pulses of train. 18A are interlaced with the pulses of train 18B). The multiplex signal passes through amplifier 19, whose gain is varied according to the ambient noise level sensed by units 21, 22, 23, and the amplified signal is decoded at 24A, 24B in circuits which are switched by the pulse trains 18A, 18B. The beat frequency component of each decoded signal is selected by a low pass filter 26A or 26B and provides the audible signal in an earpiece 28A or 28B. Amplifier 19 may include a biased diode in the emitter circuit of a transistor, the bias being varied to change the amplifier gain. Circuits 15A, 15B, 24A, 24B may include field effect transistors as shunt modulators. Transducers 13A, 13B have mutually diverging polar lobes, which overlap along a central axis. The polar lobe of transducer 11 may provide a uniform or non-uniform field strength within a region centred on that axis. In various modifications (a) a local oscillator signal whose frequency is a harmonic or subharmonic of the switching frequency of circuits 15A, 15B, 24A, 24B, may be used (instead of that switching frequency) for heterodyning with the signals from transducers 13A, 13B, (b) a single receiving channel may be used, with a gain controlled amplifier between the modulator and the device for producing the audible signal, or (c) the gain control device may increase or decrease the power output of the transmitting transducer.
Patent GB-1169146-A (GB)
Title: Improvements in or relating to Devices for Automatically Winding Web Material on a Mandrel
IPC: B65H18/10
Filed: 1968-06-26
Abstract: 1,169,146. Winding webs. CHAMBON Ltd. 26 June, 1968 [10 July, 1967], No. 30445/68. Heading B8R. In a web winding machine having a pair of diametrically opposed mandrels (54, 55, Fig. 1) carried by a pair of arms (56) rotatably mounted on a horizontal shaft (57), each mandrel is driven at a speed varying inversely with the diameter of the roll being wound by a variable gear 12, one or other of two auxiliary variable gears 84 and 85, and a slipping powder clutch 86 having a predetermined 5% slip. When the web-roll diameter increases, the clutch 86 tends to slip to a greater extent, thereby rotating the planet gear carrier 103 of a differential gear 94 connected between the input and output of the slipping clutch. A photo-electric cell 104 and a light source 105 are disposed on either side of a hole 106 formed in the planet carrier 103. Movement of the carrier 103 results in a signal being amplified at 104a to act upon a servomotor 84a controlling the setting of the auxiliary variable gear 84. The web winding machine includes a horizontal table 10 on which the web is caused to slip. Two pairs of nip rollers (1, 3 and 48, 49), the second pair (48, 49) advancing the web at a faster rate than the first pair, tension the web between them at a rotary cutter 27. At cut off and transfer, the leading end of the severed web is directed around the new mandrel (54) by parallel belts (59) guided by rollers (61-63, 67, 68 and 69) to engage a major portion of the peripheral surface of the new mandrel. Rollers (61-63) are mounted on a support (64) pivoted at (65), which support is moved into an inoperative position disengaging the belts (59) from the surface of the mandrel, once the leading end of the severed web has completed a few turns on the mandrel.