baber/WOPTO huggingface dataset:
Patent GB-1497327-A (GB)
Title: Direct radioimmunoassay for hepatitis associated antigens and their antibodies
IPC: G01N33/576
Filed: 1975-05-23
Abstract: 1497327 Determination of hepatitis associated antigen ABBOTT LABORATORIES 23 May 1975 [17 June 1974] 22964/75 Addition to 1414480 Heading G1B In the radio immunoassay method of Specification 1414480, for determining hepatitis associated antigen (HAg) or its antibody (HAb) at least one of the incubation steps (f) and (i) is effected at 35 to 55C, the method concerned comprising (a) forming a buffer solution of HAg or HAb, (b) contacting a solid substrate with the solution (c) incubating for from 6 to 72 hours (d) washing (e) placing the unknown sample in contact with the so treated substrate (f) incubating (g) washing (h) contacting the substrate with a radio-active tracer-labelled HAg or HAb (i) incubating (j) washing (k) counting radiation emitted by the substrate and (1) comparing the result with a standard. An Example relates to detection of HAg using an antibody-coated tube prepared as in (a) to (d).
Patent GB-1475724-A (GB)
Title: Pulse generator circuits
IPC: G06F1/06
Filed: 1974-05-22
Abstract: 1475724 FET pulse generators HITACHI Ltd 22 May 1974 [4 June 1973] 22976/74 Heading H3T A pulse generator circuit includes first, second and third inverters I1, I2, I3, Fig. 1, each comprising series connected FET's of the same conductivity type which are connected in cascade to form a closed loop, an output terminal T0 connected to the third inverter, a first capacitor C1 arranged between the input to the second inverter 12 and another part of the circuit and a second capacitor C2 arranged between the input of the third inverter I3 and a reference potential. In the pulse generator shown in Fig. 1 P-channel MOSFET's T1-T6 are used and assuming T2 and T4 are off and T6 is on, capacitor C1 charges until the threshold level of T4 is reached and then T4 conducts. At this time the charge on capacitor C2 starts to discharge through T4 and when the output voltage of T4 at b falls below the threshold level of T6, T6 turns-off. As the output of T6 does not include a large capacitance as in the case of C1 and C2 the output c changes rapidly to turn on T2. Now capacitor C1 discharges via T2 and when the output voltage of T2 falls below the threshold level of T4, T4 turns off. Now capacitor C2 charges and when the output of T4 at b reaches the threshold value of T6, T6 conducts and turns off T2 and the above cycle is repeated. The pulse generator can be constructed in integrated circuit form with two additional terminals to connect C1 and C2 which are external components. The capacitors C1, C2 may also be assembled into the integrated circuit by adjusting the resistances of T1 and T3, in this case the gate capacitances of T4 and T6 may also be used. The first capacitor C1 may be connected between the input and output of the second inverter I2 (Fig. 5, not shown) so that I2 and C1 constitute a Miller integrator. The pulse generator may be used to drive a pulse selector (PS, Fig. 3, not shown) deriving antiphase clock signals #1, #2 for application to an electronic desk top calculator. The pulse selector (PS) includes pairs of NOR gates (NOR1, NOR2) and (NOR5, NOR6) connected so that each pair forms an RS flip-flop and gates (NOR3 and NOR4) connected so as to form an RS flip-flop and OR gate.
Patent GB-332069-A (GB)
Title: Improvements in or relating to gas cooking stoves and the like
IPC: F24C15/10
Filed: 1929-07-26
Abstract: 332,069. Peterson, S. W. July 26, 1929. Gas cooking-stoves.-In a gas-heated hot-plate stove having a wholly or partially closed combustion chamber beneath the hot-plate, the burners 5, pipes 6, and gas cocks 7 are housed within the chamber and are unattached to the hot-plate 1, which is hinged at 9 or otherwise. movable to permit access to the interior.
Patent GB-502727-A (GB)
Title: Improvements in and relating to the charging of internal combustion engines
IPC: F02B37/02
Filed: 1937-08-23
Abstract: 502,727. Turbines. UMPLEBY, F. Aug. 23, 1937, No. 23030. [Class 110 (iii)] [Also in Group XXVII] Exhaust-driven radial-flow turbine-blade, 14 are provided with extensions 14b which act continuously as fan blades to extract residual exhaust gases. The composite blades may be mounted or formed on one or both sides of the wheel 15, or fan blades only, inducing cooling air, may be formed on one side.
Patent GB-749974-A (GB)
Title: Improvements in slot cutting machines for masonry
IPC: B23D47/12
Filed: 1954-08-09
Abstract: 749,974. Masonary cutters. SAUER, C. Aug. 9, 1954 [April 17, 1954], No. 23115/54. Class 124 A slot cutting machine comprises a hand operated rotary drill to which is attached a casing, extending in the longitudinal direction of the drill, containing the reduction gear for driving the cutters. As shown, a rotary drill 5 has a tubular portion attached to its front end by a shackle 4 welded to the split end of a part 1, the; other end of the part 1 being fixed by a screw thread 29 to a gear casing 2 carrying a worm 7 on the shaft 9 and a worm wheel 8 on a shaft 21. An extension 17 of the worm shaft 9 is drivingly engaged with a sleeve 18 fixed to the shaft of the drill. The shaft 21 of the worm wheel has an extension carrying a pair of cutters 27 which are partially enclosed by a cover 28. The connections between the part 1 and the drill and between the parts 1 and 2 are made in a dust-proof manner and the ends of the part 2 through which the parts 9 and 21 extend are also closed by dustproof packings.
Patent GB-442542-A (GB)
Title: Improvements in or relating to weighing apparatus
IPC: G01G23/32
Filed: 1934-08-10
Abstract: 442,542. Weighing - apparatus. FITZPATRICK, H. D., 94, Hope Street, Glasgow.-(Maatsohappij van Berkel's Patent Naamlooze Vennootschap; 33, Boezemsingel, Rotterdam, Holland) Aug. 10, 1934, No. 23128. [Class 143] Relates to weighing apparatus of the typ( wherein enlarged op tical indications of the weight and /or price are given at different locations, one indication for the seller and the other of the buyer, and is characterized by duplicate enlarging systems disposed side by side and each comprising ar indicator scale 3, a source of illuminatior 1 and optical means such as lenses 2, 6 and mirror 7, the optical axis a of each system being inclined to, and crossing, the central plane of the two systems. The scales 3 have a slight angular displacement with reference to each other, or alternatively, if the optical axes cross at the markings on the scales 3 the lenses are displaced. Preferably the scales are enclosed in dustproof casings 4 as described in Specification 352,182.
Patent GB-1274318-A (GB)
Title: An arrangement for producing multiple images
IPC: G06V10/88
Filed: 1969-05-06
Abstract: 1,274,318. Multiple image formation: holography. THOMSON C.S.F. May 6, 1969 [May 15, 1968], No.23154/69. Apparatus for producing multiple images of an object O comprises a monochromatic light source 1 to illuminate the object O, a hologram H of a two dimensional array of luminous spots and a lens for forming a real image of the object, light from the object illuminating the hologram which gives rise to the multiple images N i  -N n . The object is located in the same plane as the reference source used in the formation of the hologram and the real images produced have irtual image counterparts M i  -M n  located at the positions of the original luminous spots. The object O is located and real images N are formed in the focal planes of a lens 3. If desired the field angle may be increased by placing lens 3 at an angle to the hologram. In one embodiment the object O is situated on the opposite side of the hologram to lens 3 and on the same side of the hologram as the original reference source used to form the hologram. In another embodiment the lens is located between the object and the hologram. Aberration may be corrected for by placing a plate 5 with parallel faces and comprising two prisms 50, 51, in the light path from object O to the lens 3.
Patent GB-1026147-A (GB)
Title: Novel sulfanilylaminopyridazinone derivatives and their production
IPC: C07D237/22
Filed: 1963-06-11
Abstract: The invention comprises 4-sulphanilylamino-3(2H)-pyridazinones of the formula <FORM:1026147/C2/1> wherein R is a C1- 4 alkyl radical and R1 is hydrogen or a C1- 4 alkyl radical and their preparation by reacting an appropriate substituted 4-amino-3(2H)-pyridazinone with a p-acylaminobenzenesulphonyl halide and hydrolysing the resulting 4-(p-acylaminobenzenesulphonylamino)-3(2H)-pyridazinone. Preferably R is a methyl group and R1 is hydrogen or methyl.  The products are used as chemotherapeutic agents.  4-Amino-3(2H)-pyridazinones bearing subtituents R and R1 in the 2 and optionally in the 6-position are made by methylating a 3(2H)-pyridazinone bearing a substituent convertible to an amino group in the 4-position and subsequently converting the 4-substituent, or by aminating a 2-lower alkyl-4,5-dihalo-pyridazinone and dehalogenating the resulting monoamino compound.
Patent GB-617282-A (GB)
Title: Improvements in hair wave clip
IPC: A45D2/42
Filed: 1946-08-06
Abstract: 617,282. Hair-waving appliances. JARRETT, RAINSFORD & LAUGHTON, Ltd. (Delamere Co., Inc.). Aug. 6, 1946, No. 23311. [Class 131] [Also in Group XXV] In a hair-waving clip of the type having two pivotably connected jaws, each with a handle, and a spring disposed between the handles, the spring has two substantially parallel legs and a connecting portion all disposed in a single plane, the legs bearing against the inner faces of the handles longitudinally thereof. As shown in Fig. 2 the legs 22 of the spring are held in grooves 24 in the handles 15. They are inserted by compression of the spring. Fig. 5 shows the pivotal connection between the jaws 10, 11 the handles having overlapping lugs 17 and 16 and apertures 21 in the lugs 17 engaging studs 20 on the lugs 16.
Patent GB-506417-A (GB)
Title: Improvements in hand cameras for motion pictures
IPC: G03B1/12
Filed: 1937-08-25
Abstract: 506,417. Spring motors for kinematograph cameras. ETABLISSEMENTS EMEL SOC. A.R.L. Aug. 25, 1937. No. 23317. Void. Convention date, Sept. 12, 1936. [Class 10] [Also in Group XX] In a spring, motor for a kinematograph camera of the kind provided with a stop device for locking the spring barrel 2 at points before the spring is fully wound and fully unwound, the stop mechanism comprises two pinions 15, 16 having different numbers of teeth and respectively keyed to the winding shaft 3 and freely mounted on a shaft 17 secured to the barrel 2, the pinion 16 being formed with one long tooth a while the pinion 15 has one recess b between teeth shallower than the others.
Patent GB-924697-A (GB)
Title: Axle suspension mechanism
IPC: B60G11/10
Filed: 1961-06-28
Abstract: 924,697. Road vehicle suspensions. EATON MANUFACTURING CO. June 28, 1961 [Aug. 8, 1960], No. 23341/61. Class 108(2). A vehicle suspension comprises a stack of spring leaves spanning the space between two axles and connected intermediately by pivot means to the loadreceiving structure, the end portions of the spring leaves having transverse enlargements surrounded by cushioning media located within shackle devices connected to the axles. The ends of leaf spring 16 are connected with axle housings 23, 24 by shackle box devices 17, 18 which are of similar construction. Shackle box 17 comprises upper and lower members 28, 29 connected by bolts 30, forming, with side walls (not shown) and end portions 32, 33, a hollow chamber 31 having end openings 34, 35. Upper member 28 has an upwardly extending hollow bracket 42 which is fixedly attached to axle housing 23. The two lower leaves 44, 45 of spring 16 project beyond the other leaves and are provided with co-operating bowed portions 48, 49 forming a spring eye 50 which is located in chamber 31 and through which extends a pin 52 fixedly attached to the side walls of the housing. Bushings 55, 57 and 58 are located between portions 48, 49 of leaves 44, 45 and pin 52 and above and below spring eye 50. Other cushion members (not shown) are located within chamber 31 between the side edges of eye 50 and the side walls. The pivot means 19, connecting the intermediate portion of spring 16 and the vehicle structure 13, comprises upper and lower members 67, 68 pivotally connected by a pin 69. Member 67 is rigidly connected to frame member 21, 22 and has a depending hollow portion 73 having a recess 74 and two spaced clamping portions 75, 76 which hold a pivot pin 69 which passes through a transverse opening 80 in block 78 of member 68. Block 78 is seated on the upper side of intermediate portion 16b of the spring and has a depending side wall 79 lying adjacent to the outer side of the stack of leaves which comprise the spring. A lower clamping member 82, engaging the underside of the spring, is held in position by U-bolts 83, whose upper portions lie in grooved portions at each end of block 78, and is provided with pairs of upstanding lugs 91, 92. Lugs 91 are provided with clamping screws 93, the action of which is to push flat-plate portion 79a of side wall 79 against the outer side of the stack of leaves and cause lugs 92 to be drawn against the inner side of the stack. The leaves of the spring are retained in the correct relationship by a bolt 85 extending through the leaves. Relative longitudinal shifting between pivot member 68 and the spring is prevented by a member 89, interposed between block 78 and the spring, which has an opening 89a through which passes head 86 of bolt 85 and which has up-turned end portions 90 which engage with opposite ends of block 78.
Patent GB-1112298-A (GB)
Title: Expansible bag for artificial respiration apparatus
IPC: A61M16/00
Filed: 1965-06-01
Abstract: 1,112,298. Expansible bag for artificial respiration apparatus. A. LAERDAL. 1 June, 1965 [15 June, 1964], No. 23367/65. Heading A5T. An expansible bag 1 for an artificial respiration apparatus, the bag being elastically compressible in a direction transverse to its longitudinal axis for supplying an inhalant gas to a patient, comprises a central part 2 which is non-collapsible in the longitudinal axial direction of the bag, and two outer parts 3, 4 which are collapsible by a snap action into the central part to reduce the length of the bag when not in use. The outer parts preferably taper from the central part towards their outer ends. The snap action may be effected by providing the outer parts of the bag with continuous peripheral constrictions 6, 7, 8, 9, or by providing corrugations in the outer parts of the bag.
Patent GB-500858-A (GB)
Title: Improvements in and relating to extensible curtain rods
IPC: A47H2/02
Filed: 1938-08-08
Abstract: 500,858. Extensible curtain rods. WIEDEMANN, H. Aug. 8, 1938, No. 23377. Convention date, Aug. 26, 1937. [Class 52 (v)] An extensible curtain rod comprises two telescoped trough-like metal bars 1, 2 arranged one behind the other, the rear member 2 being secured by flexible tongues 3 provided on the front member so that the parts can be separated after turning up the tongues. At its lower edge the rear member fits in a channel 4.
Patent GB-1000375-A (GB)
Title: Pipe fittings and method for making
IPC: F16L58/18
Filed: 1962-06-18
Abstract: 1,000,375. Pipe fittings. AMERICAN PIPE CONSTRUCTION CO. June 18, 1962 [June 22, 1961], No. 23414/62. Heading F2G. A pipe fitting includes an impervious, chemically resistant liner 13, an intermediate layer 20 formed from at least one unitary encircling piece of matting which comprises an interwoven array of continuous glass rovings wound under tension and an outer layer of glass roving windings 23 and cured thermosetting resin. The matting 20 may be formed by winding separate continuous filaments in right-hand and left-hand helices about a mandrel, the windings being substantially normal to each other. In the construction shown, the liner 13 consisting of resin impregnated asbestos comprises two pieces of material overlapping around the circumference of the bend of a demountable mandrel 10. The two pieces of material which are mirror images of each other are pentagonal, having two short parallel sides meeting a longer third side in right angles, the other two sides meeting outwardly in an obtuse angle. The glass roving windings 23 may be passed through a resin bath, coated with resin after their application to the fitting or be provided with a moulded layer of resin. In making a T-junction fitting the liner comprises two pieces of material of rectangular shape having the ends of one of their longer sides concavely radiused, the other longer sides overlapping along the axis of the leg of the T-shaped mandrel. The glass roving windings 36 are applied cross-wise about the junction of the limbs of the T and are kept in tension by attaching their ends to arms 35 of the mandrel until circumferential windings 37, 38, 39 are applied. An epoxy resin may be applied to the fitting especially at the junction of the limbs in a mould (Fig. 13, not shown). Other resins included are phenolic, polyesters and polyurethanes.
Patent GB-741779-A (GB)
Title: Improvements in directive aerials
Inventor: COPPLESTONE DONALD SYDNEY
IPC: H01Q19/30
Filed: 1953-08-25
Abstract: 741,779. Aerials. BELLING & LEE, Ltd. Aug. 25, 1954 [Aug. 25, 1953], No. 23464/53. Class 40 (7). A directive aerial system capable of operation over a wide band of frequencies comprises an active element 1, which may be a dipole or folded dipole, and a plurality of parasitic elements 4, 5, 6, of differing lengths disposed closely together in the same plane as the active element and each effectively spaced from it for reflector operation at the frequency determined by its length. As shown, the halves of the shortest element 4 are angled towards the active element so that their ends are properly spaced from it for action as a reflector towards the upper end of the required frequency band; element 5 is straight and slightly longer, and element 6 longer still and angled outwards for reflector operation towards the lower end of the band. The parasitic elements may be mounted in a common bracket 7 on the end of a cross-arm 2 supporting the active element 1 in an insulator at its other extremity. In an alternative embodiment (Fig. 2, not shown) all the parasitic elements are straight and are mounted individually in separate brackets at the required positions along the cross-arm.
Patent GB-728520-A (GB)
Title: Improvements in or relating to manufacturing and using a copper compound containing copper hydroxide
IPC: D01F2/04
Filed: 1952-09-18
Abstract: A precipitate comprising more than 80 per cent of copper hydroxide, prepared by reacting aqueous ammonia with aqueous copper sulphate at a pH of 7-9 at or below 30 DEG  C., is separated by filtration from the liquid, washed and converted to a slurry containing 10-30 gms. Cu/100 ccs.; the copper content is measured and ammonia is added, followed by cellulose to form a spinning solution.  The solution may contain less than 40 per cent by weight of copper as metal with respect to the cellulose content.ALSO:Aqueous copper sulphate is reacted with aqueous ammonia at a pH of 7-9 at or below 30 DEG  C. to provide a mixture containing in general more than 80 per cent. of the copper as hydroxide.  Of the remainder, part at least, is basic copper sulphate.  The reagents are added in the requisite proportions and the mixture agitated vigorously to assist exact pH control.  The copper sulphate contained in the mother liquor may be recovered by adding sufficient sulphuric acid to reduce the pH to 6-7, separating the so-formed precipitate of basic copper sulphate, adsorbing copper/salts remaining in the solution, e.g. on carbon or ion exchange resin in a column, separating the adsorbed compounds, and treating the precipitate of basic copper sulphate and adsorbed copper compounds with sulphuric acid; the copper sulphate thus regenerated is recirculated with fresh material to produce more of the hydroxide-containing mixture.  Crystalline ammonium sulphate may be obtained from the mother liquor after concentration.  The hydroxide-containing mixture is filtered, washed and converted to a slurry containing e.g. 10-13 Cu/100 c.c.  The copper content is measured, the suspension mixed with aqueous ammonia, and cellulose dissolved in the so-formed cuprammonium solution.
Patent GB-271700-A (GB)
Title: Improvement in method of shelling cocoanuts
IPC: A23N5/03
Filed: 1926-09-23
Abstract: 271,700. Marks, E. C. R., (American Machine & Foundry Co.). Sept. 23, 1926. Cracking nuts; shelling; treatment by steaming. -The shells of cocoanuts are weakened, prior to loosening the nut from the shell by steam under pressure, by cutting grooves therein, one or more of such grooves preferably extending continuously round the nut and others extending some distance at right angles thereto. The cuts are made by saws 17 provided with guards 18 to prevent cutting entirely through the shell. The short cuts may be inclined to the surface of the nut. The treated nuts are placed in a steam chamber 26 having a cover secured in position by hooks 30 engaging flange lugs 31 on the chamber. Superheated steam at about 60 lbs. pressure is led into the chamber and causes the slots in the shells to widen and the kernels to be loosened from the shells. A grid 32 prevents the nuts from resting in any water that may condense. The steamed nuts are then shelled by inserting a flat tool in the grooves and turning it to force the pieces of shell apart or by applying hooks to the edges of the grooves and pulling off the shells. When the shell has two continuous grooves the ends are seized in grippers and the middle band by clamps. The grippers are twisted in opposite directions to loosen the end pieces of shell and then turned in the same direction to force off the middle band against inclined plates inserted in the longitudinal grooves. The nut may be held stationary and the frame holding the plates rotated about it to force off the middle band.
Patent GB-1191632-A (GB)
Title: Improvements in and relating to the Chemical Conditioning of Sewage Sludges and Similar Liquid Products
Inventor: WORTH ANTHONY BRIAN
IPC: C02F11/147
Filed: 1966-05-26
Abstract: 1,191,632. Treating sewage sludge. DAVEY, PAXMAN & CO. Ltd. 17 May, 1967 [26 May, 1966], No. 23568/66. Heading C1C. Sewage sludge is treated with polyelectrolytes in solid form. The polymers may be in perforated containers or moulded on wires and can be inserted in a flow line. More than one polyelectrolyte can be used at a time.