baber/WOPTO huggingface dataset:
Patent GB-425621-A (GB)
Title: Improvements in or relating to solvent-recovery plant
IPC: B01D53/04
Filed: 1933-09-20
Abstract: <PICT:0425621/III/1> A solvent-recovery plant comprises a plurality of annular perforated holders b for absorption material arranged in a common tank a.  The air to be treated enters the tank by a valve situated in the centre of the top and after passing through the annular containers enters a manifold f above the tank leading to the fan. Baffles h may be <PICT:0425621/III/2> <PICT:0425621/III/3> placed between the inlet valve and the containers.  Steam pipes i for indirect heating are provided in the central spaces of the annular containers and other pipes l admit steam directly into these spaces. Between the outlet manifold and the fan is a valve which is opened automatically by the suction of the fan during absorption, and is maintained closed by the pressure of the steam used in the regenerating period.  The subject matter claimed in Specification 415,801 is disclaimed.  Valves.--Fig. 4 illustrates an automatic valve for use in the outlet pipe.  The poppet valve o<1> in the chamber o connected to the absorber closes by its own weight and is so maintained by the steam pressure in the absorber during regeneration.  When the fan operates it applies suction to the disc s causing the valve o<1> to open.  A small spring-loaded poppet valve r is held open by the rod s<1>, when the main valve is closed to admit air to operate the disc s.
Patent GB-1335080-A (GB)
Title: Method of sealing quartz tubes
IPC: H05H1/32
Filed: 1971-04-19
Abstract: 1335080 Sealing quartz glass by plasma heating PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [7 April 1970] 26097/71 Heading C1M The quartz evacuation tube 5 of an evacuated envelope 1 is sealed off by heating with two plasma burners 7, 8 and also by an electric arc 11 struck between the burners. The tube 5 is moved relative to the envelope to elongate and seal it. The two burners are positioned on axes making an angle of less than 180 degrees (Fig. 2).
Patent GB-1471945-A (GB)
Title: Diaphragm-shutter
IPC: G03B7/083
Filed: 1974-06-13
Abstract: 1471945 Shutter-diaphragm EASTMAN KODAK CO 13 June 1974 [14 June 1973] 26261/74 Heading G2A A shutter-diaphragm 1, 2 controlled by a photoelectric timing circuit 18a has means for limiting the exposure time to a predetermined maximum value and means selectively operable to deactivate the limiting means to enable the exposure time to exceed said value. As shown, a shutter release 3 frees an element 4 which rotates anti-clockwise and, via pins 15, 16, moves blades 1 and 2 apart to open the exposure aperture lc, 2c. An aperture ld in blade 1 increases the illumination incident on a photo-cell PC2 until a trigger circuit 25 is switched to energize an electromagnet 17. This pivots a pawl 10 clockwise to release a member 11, which rotates clockwise, taking element 4 with it to close the blades. If the scene intensity is such as to require on exposure time exceeding <SP>1</SP>/ 30  sec, then PC2 cannot switch trigger circuit 25 and the shutter blades open to their fullest extent, whereupon a pin 7 on blade 1 pushes a member 9 to pivot pawl 10 and thereby release member 11 to close the blades. If however a knob 13 is pressed to move member 9 out of the path of pin 7, the blades stay open until capacitor has charged through a photo-cell PC1 sufficiently to switch trigger circuit 25. PC1 is fully exposed to scene light throughout the exposure. A shutter cocking lever 14 resets knob 13, so that the next exposure will again be limited to <SP>1</SP>/ 30  sec unless knob 13 is re-operated. An indicator (not shown) preferably indicates when an exposure exceeding <SP>1</SP>/ 30  sec is to be expected. An escapement mechanism 5, 6 slows the blades 1, 2 in the latter part of their opening movement.
Patent GB-761946-A (GB)
Title: Improvements relating to processes for recovering lignin from black liquors
IPC: D21C11/04
Filed: 1954-09-10
Abstract: Lignin is recovered from black liquors by continuous precipitation with carbon dioxide at an elevated temperature and pressure, by a process wherein the black liquor, while in continuous circulation, is first saturated under pressure with carbon dioxide at normal temperature and following this is continuously heated under the same pressure of carbon dioxide. The process may be carried out by passing the black liquor (i.e. the alkaline waste liquors of the sulphate-cellulose industry) up a vertical tube together with carbon dioxide at a pressure of 20 atmospheres.  The first stage of the carbonation takes place in the lower zone of the tube at normal temperature and the second stage takes place in the upper zone of the tube at a temperature of 100-120 DEG C.  The liquor which escapes, together with carbon dioxide, at the top of the tube and contains separated lignin is cooled, collected in a separator, and after removal of a portion of the liquor with the suspended lignin, the remainder (after separation of the suspended lignin and addition of fresh black liquor) is returned to the liquid circulation.
Patent GB-231774-A (GB)
Title: Improvements in and relating to polishing compositions
IPC: C09G1/08
Filed: 1924-11-04
Abstract: 231,774. Schwarzkopf, J. July 8, 1924, [Convention date]. Polishing-compositions. - Wax polishes for leather, linoleum, wood, &c. contain a proportion, e.g. ¢-3 per cent, of coffee wax, waxlike body extracted from coffee or coffee husks and produced in the manufacture of caffeine-free coffee. In an example, a shoe. polish is made by heating together 7 lb. of montan wax, 5 lb. of carnauba wax, 16 lb. of ceresine, 1-3 lb. of coffee wax, 4 lb. of aniline dyes, and 68 lb. of turpentine oil, benzine, or water. When water is used the mixture may be emulsified or colloidally dispersed.
Patent GB-1268725-A (GB)
Title: Electromagnetic device comprising armature support
IPC: H01H50/26
Filed: 1970-06-01
Abstract: 1,268,725. Relay armature support. TELEFONAKTIEBOLAGET L. M. ERICSSON. 1 June, 1970 [2 June, 1969], No. 26394/70. Heading HlN. A relay armature support spring 1 is in the form of a blade having a large " return excursion " at one end and a small " return excursion " 2 at the end of the large " excursion ". The large " excursion " fits through a hole in a member 6 with the " excursion " 2 engaging the edge of the hole to bias the armature 5 against the yoke edge 4 for flexure on armature attraction. The leaf spring 1 has ears 3 which secure it to the armature 5.
Patent GB-1424106-A (GB)
Title: Colour comparator
IPC: G02B6/04
Filed: 1973-06-02
Abstract: 1424106 Colour comparator WIRA 6 May 1974 [2 June 1973] 26418/73 Heading G2J An apparatus for determining the colour composition of a sample surface 1, e.g. of a fabric, in terms of three or more reference colours 5, 10, 9 comprises a bundle of light transmitting rods 3a-3c having one end adjacent the sample and the other forming a viewing surface 4x, and three or more bundles 6a-6c, 7a-7c, and 8a-8c, each bundle having one end adjacent a reference surface 5,10,9 and the other forming a viewing surface 4y, the ends of the rods 6a-8c in the surface 4y being arranged to cause the colours transmitted by those rods to coalesce, as observed by the eye, into a single colour. Lenses, suffix L, and adjustable diaphragms, suffix d, permit the amount of light transmitted by the bundles to be controlled, and the surfaces 4x, 4y may be two semicircles forming a circle.
Patent GB-697179-A (GB)
Title: Method and apparatus for placing garments on boards
IPC: D06C5/00
Filed: 1950-10-31
Abstract: 697,179. Ironing-machines; finishing fabrics. BATES, E. B. Oct. 22, 1951. [Oct. 31, 1950] No. 26481/50. Classes 42 (i) and 138 (ii). A garment is placed on an initially flat flexible board or shape 16 by feeding the board into the garment and simultaneously imparting rigidity to it in the direction of feed by temporarily bending it to a trough-like section across the direction of feed. The boards 16 are fed from a magazine 17 by a telescopic suction arm 19 so that they pass one at a time between a pair of rollers 10, 11, one of the rollers 10 being of convex shape in plan view and the other 11, being correspondingly concave. The rollers bend the board transversely to the trough-like section so that an operator can draw an article of hosiery on to the board as it emerges from the rollers. The roller 11 is mounted on a pivoted arm 25 and is biassed towards the roller 10 by a weight 24. The passage of a board between the rollers separates them and roller 11 is arranged to move a follower 26 which is connected to a flap valve 27 in the suction line of the arm 19 to connect the arm to atmospheric pressure. The arm thereupon releases the board and returns to its initial position under spring pressure or gravity, ready to pick up another board. This occurs as soon as the board between the rollers is fed out since the follower 26 then closes the valve 27 to apply suction once more to the arm 18 to cause it to engage another board and retract. The rollers 10, 11 are driven through a clutch controlled by a foot pedal 31.
Patent GB-1078408-A (GB)
Title: Rotors for dynamo electric machines
Inventor: SHAW LOUIS
IPC: H02K3/32
Filed: 1965-06-23
Abstract: 1,078,408. Insulating dynamo-electric machines. JOSEPH LUCAS (INDUSTRIES) Ltd. June 20, 1966 [June 23, 1965], No. 26525/65. Heading H2A. The coil (17) of an interdigitated-pole rotor is insulated by a strip of insulation 21 which is wound round the cylindrical magnetic core 12 of the rotor and has staggered lateral arms 22 which wrap round the coil in interdigitated fashion after it is wound. The assembly is secured by tape, the magnetic end polepieces 13 are placed in position, and the whole impregnated with varnish. Before coil-winding, the ends of the insulating member 22 are linked by tape, and they may be specially shaped for this purpose.
Patent GB-921075-A (GB)
Title: Process for optical resolution of racemic glutamic acid
Filed: 1961-07-21
Abstract: Racemic glutamic acid is resolved by inoculating into a super-saturated solution of racemic glutamic acid seed crystals consisting of optically active glutamic acid containing more than 30% of the orthorhombic a -form in each individual seed crystal, the crystals produced by such inoculation being separated from the solution.  The seed crystals are preferably fed in at the top of a tower through which a solution of racemic glutamic acid flows upwardly, grown crystals being separated from the solution at the bottom of the tower.  The above process may be combined with the process of Specification 865,311.
Patent GB-1524628-A (GB)
Title: Disperse reflectors
IPC: G09F9/00
Filed: 1976-06-25
Abstract: 1524628 Coated reflectors BBC BROWN BOVERI & CO Ltd 25 June 1976 [27 June 1975] 26598/76 Heading C7F [Also in Division G5] A reflector for a liquid crystal display device comprises a glass, metal or plastics substrate having surface depressions of a bubble-like structure upon which a reflective metal layer is deposited, preferally of Al, Au, Ag or Cu. A layer of Cr5 is preferably deposited before the reflective layer 6 and a protective layer of SiO 2  7 is then deposited, evaporation being the preferred process. The surface depressions may be formed by grinding or blasting a glass plate and etching in HF/H 2 O, or by stamping a PVC foil.
Patent GB-152009-A (GB)
Title: Improvements in or relating to coke ovens and the like
IPC: C10B21/10
Filed: 1920-09-17
Abstract: 152,009. American Coke & Chemical Co., (Assignees of Lomax, C. S.). Oct. 3, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Coke ovens.-In an oven having independent flue groups in which the direction of the draught is reversed at intervals, a damper is situated at or near the mid point of the length of each group. As shown, each group comprises two vertical flues 21, 22 connected at the top by a cross-passage 23, in proximity to which is situated a block 25 with a port 26 controlled by a damper block 24<a>. Inspection openings 73 in alinement with the flues lead to the top of the bench. The soleflues 27 beneath the ovens are divided by a partition at the middle of the length, and each is connected through ports 29 with the alternate flues in the heating-walls on both sides of it. Gas is supplied from both sides of the bench to the heating-flues by the conduits 47, 48. Running longitudinally beneath each oven are two regenerator chambers 33, 34 arranged end to end, and each is connected to the corresponding sole and chimney flues through ports 38, 39 respectively. In their travel from the port 38 to the port 39, the gases pass round the partition 43. The valve casings 53 between the ports 39 and the chimney flue are of Y-form with two triangular boxes 54, 55, in which are mounted flap valves 58, 59 adapted to close either the ports 56, 57 leading to the atmosphere, or the chimney-flue ports. The valves may be interconnected for simultaneous operation, and additional regulating- valves 61 may be provided in the chimney connexions. A single valve 64 controls the alternate supply of gas to the two flues 47, 48, and in connexion with these is an air inlet valve 69, which can be operated to admit air to either for the purpose of burning-out carbon deposits. In building the structure, gaps are left in the brickwork at various points to allow expansion to be taken up locally.
Patent GB-170006-A (GB)
Title: Improvements in or relating to apparatus for sterilising liquids
IPC: A23L3/18
Filed: 1921-10-08
Abstract: 170,006. Stassano, H. Oct. 9, 1920, [Convention date]. Sterilizing liquids.-Liquids to be sterilized, such as milk, serums, or vaccines, are heated to a suitable temperature, maintained at that temperature for a short time, and cooled. The liquid is preferably heated in very narrow passages. A device for this purpose is shown in Fig. 3. A cylindrical block 8 with a conical depression on each side fits between two discs 13, 14 with corresponding projections. The width of the space between the block and the 'discs can be adjusted by changing washers 20, which keep them apart. Grooves 11 are formed in the surfaces of the block and connected by passages 12. The liquid enters through a passage 15 through the centre of one of the discs, passes through the space between that disc and the block 8, through the passages 12, between the block 8 and the second disc, and escapes by the passage 15 in that disc. The whole is heated electrically or otherwise. Fig. 1 shows a device 1 such as is described above arranged in a heating bath and communicating with a coil 4 in a steam chamber 5, and a cooling coil 6. The heating may be performed in a coiled pipe, preferably flattened, in a heating bath.
Patent GB-1213655-A (GB)
Title: Circuit arrangement for an electric muscle stimulator
Inventor: MCDONALD MICHAEL
IPC: A61N1/36
Filed: 1967-06-09
Abstract: 1,213,655. Muscle stimulators. MEDICAL & BIOLOGICAL INSTRUMENTATION Ltd. 6 June, 1968 [9 June, 1967], No. 26803/67. Addition to 1,129,142. Heading A5R. [Also in Division H3] A muscle stimulator electrical circuit includes a surging waveform generator 1 connected with a pulse generator 4 to a gating circuit 9 which is in turn connected to an output transformer 15, the gating circuit being controlled by the surging waveform generator in such a way that the output from the gating circuit includes signals at the pulse generator frequency in bursts which are controlled in accordance with the output of the surging waveform generator, and the transformer being so arranged and connected that the output from the transformer (Fig. 4 (f), not shown) includes alternate pulses of opposite polarity at the pulse generator frequency. As shown, a square wave generator 4 is connected with the surging waveform generator 1 through a mixer stage 2 and an output stage 7 to the gating switch 9 which is controlled by signals received from the generator 4 via a delay circuit 11. As in Figure 3, which shows in detail a part of the circuit of Figure 1, the delay circuit comprises a differentiating capacitor 18, resistor 19, and a monostable multivibrator 21, 22 while the gating circuit comprises a bi-stable multivibrator 23, 24 connected through transistors 26, 28, 30, 32 to the anti-phase primary windings of the output transformer 15. The alternate pulses of opposite polarity produced at the transformer 15 are applied from chosen secondary windings of the transformer to body contacting pads arranged to stimulate body muscles. An alternative embodiment (Figures 5, 6 and 7, not shown) includes a free running surging waveform generator (36) and a free running square wave generator (38) providing pulses to the output transformer (46) via amplifying transistors In a final embodiment (Figure 8, not shown) the output transformer has a single primary winding which is connected to the mixed output of a square wave generator (71) and a surging waveform generator (68) via a double pole double throw switch (78) operated by an output from the square wave generator.
Patent GB-236436-A (GB)
Title: A liquid for cleaning windows, mirrors and the like without using water
IPC: C11D7/60
Filed: 1924-11-19
Abstract: A liquid for cleaning windows, mirrors, &c. without addition of water consists of a mixture of about 1/4 oz. each of permanganate of potash, guaiacum resin, and borax, 1/2 oz. each of salt, alum, soda, and boracic acid, 1 oz. of French chalk, 2 oz. of starch, 5 tablespoonfuls of water, 3 1/2 tablespoonfuls of vinegar, 1 tablespoonful each of glycerine and turpentine, and 1 1/2 tablespoonfuls of methylated spirit.
Patent GB-339312-A (GB)
IPC: H04R9/06
Filed: 1929-09-05
Abstract: 339,312. Abrahams, A. I. May 21, 1929, [Convention date]. Magnetic instruments ; diaphragms. -A moving-coil loudspeaker unit comprises a casing, a diaphragm located therein having three concentric zones disposed in angular relationship to each other, the inner zones projecting from the peripheral zone towards the open end of the casing, the wall of the casing adjacent the diaphragm being shaped so that the passage between the wall and the diaphragm has an increasing cross-sectional area, preferably according to an exponential formula, from the periphery of the diaphragm to the open end of the casing. Fig. 1 shows a construction employing a magnetic casing 1 provided with a central core 3 and cap 4 forming an annular air gap in which is located a coil 6 secured to the diaphragm D. The diaphragm, shown more clearly in Fig. 2, is preferably stamped from a very light and strong aluminium alloy and is provided with a peripheral :flange 7, and intermediate frusto-conical portion 8 and a stiff central conical or convex portion 9 formed with flutes or corrugations 10<a>. A flexible member 10 of non-stretchable and impregnated cloth is cemented to the flange 7 and portion 8 of the diaphragm and is clamped between gaskets G connected to a member 11 mounted on the cap 4. If desired, tha outer diameter of the flange 7 may be the same as that of the member 10 so that that gaskets are clamped upon both metal and cloth. Binding posts connected to the coil 6 are provided on the member 11 which carries a throat portion T externally threaded at 14 to receive an exponential horn. The coil 6 is carried by a non- metallic support 18 cemented to the inner side of the diaphragm. The coil mount may be made of an impregnated strong linen cloth, stiffened by several coats of lacquer, of the material known under the registred Trade Mark " Bakelite," or of a thin, light, stiff paper, such as manuscript paper. When made of cloth or paper, the mount may be cut with serrations S and the diaphragm mount 10 may be similarly formed. According to a modification, the central portion 9 of the diaphragm may be dome-shaped, with or without corrugations. The diaphragm is first mounted on the member 11 which is then secured to cap 4 after which this sub-assembhis mounted on the casing 1. Specification 312,603 is referred to.
Patent GB-1163256-A (GB)
Title: Synthetic Monolithic Ferrite Array
IPC: G11C5/12
Filed: 1968-06-06
Abstract: 1,163,256. Magnetic storage apparatus. SPERRY RAND CORP. 6 June, 1968 [12 June, 1967], No. 27007/68. Heading H3B. A planar matrix of toroidal magnetic storage cores 12 each of external diameter A has all the cores in physical contact with their neighbours, each row of cores 16, 18 being offset by a distance A/2 with respect to the immediately adjacent rows so as to provide diagonal wirethreading paths through the matrix. With the cores of uniform thickness T and internal diameter B, the threading windows obtained each have a diameter of W=B-T. The cores are aligned in a core nest, Fig. 4 (not shown), connected to a vacuum pump, and after threading by column and row wires are transferred to a mounting frame 20.
Patent GB-962600-A (GB)
Title: Improvements in latches for vehicle bonnets
Inventor: SHAW LESLIE RALPH
IPC: E05C3/40
Filed: 1962-07-14
Abstract: 962,600. Latches. BLOXWICH LOCK & STAMPING CO. Ltd. May 20, 1963 [July 14, 1962], No. 27153/62. Heading E2A. A bonnet latch comprising a keeper 11 engageable in an opening 13 in a slidable plate 14 as described in Specification 879,474 is characterized by a safety hook 26 pivoted at 27 and having a member 29 depending through a slot 17 in the slidable plate 14 and arranged so that upon operation of either a remote control 22 or a finger control to move the plate the keeper is first released and then on further movement of the plate the safety hook is released.
Patent GB-1157099-A (GB)
Title: Fermentation Process
Inventor: BORROW ANTONY
IPC: C07D307/88
Filed: 1966-09-27
Abstract: 1,157,099. Fermentation process; preparing mycophenolic acid. IMPERIAL CHEMICAL INDUSTRIES Ltd. 31 July, 1967 [27 Sept., 1966; 13 June, 1967], Nos. 43131/66 and 27160/67. Heading C2C. Mycophenolic acid, of formula wherein R is hydrogen, or salts thereof, is produced by submerged aerobic cultivation of a mycophenolic acid producing species of Penicillium in a nutrient medium providing not less than 0À001% w./v. of magnesium, such that the magnesium source is present substantially for the duration of the process. Penicillium species may be P. brevicompactum, Dierckx; P. stoloniferum, Thom.; or P. viridicatum, Westling. The medium contains sources of assimilable carbon and nitrogen, magnesium sulphate being the preferred magnesium source. The mycophenolic acid may be esterified to its alkyl esters of the formula as above wherein R is C 1 -C 6  alkyl excluding ethyl, either by conversion to the halide which is then reacted with an alkanol, or by reacting the acid with a diazoalkane.
Patent GB-300370-A (GB)
Title: Improvement in liquid measuring and dispensing apparatus
IPC: B67D7/16
Filed: 1927-10-13
Abstract: 300,370. Liquid Measurements, Ltd., and Hammond, F. Oct. 13, 1927. Fixed-chamber apparatus.-In apparatus for delivering measured quantities of petrol or other liquids, of the kind in which the measuring- chamber is fitted with an overflow tube adjustable in height, the overflow tube is locked in the adjusted position by means actuated by the liquid being measured. A float 8 is raised by the liquid delivered to the measuring-chamber 1, so as to move a. cam 4 into locking engagement with the overflow tube 2. After the measured liquid has been run off, the tube is slightly raised to release it from the cam.