baber/WOPTO huggingface dataset:
Patent GB-1370548-A (GB)
Title: Optical method and apparatus for determinations relating to the  concentration of one or two components
IPC: G01N21/31
Filed: 1972-07-11
Abstract: 1370548 Photo-metric chemical analysis MEDICOR MUVEX 11 July 1972 [13 Jan 1972] 32338/72 Heading G1A The concentrations of two components of a specimen having different optical properties are individually determined and visually displayed by passing light through the specimen, detecting the intensity at two different wavelengths differing from the wavelength of an isosbestic point of the two components, or over different wavebands, logarithmizing the outputs of the detectors and processing to produce signals proportional to the individual concentrations of the components. The system described is used to determine the concentrations of oxidized and reduced haemoglobin in a blood sample and also to determine the ratio of these concentrations i.e. the oxygen saturation and the total haemoglobin concentration. Light is passed through the sample and the intensities at two wavelengths (in the red and near IR portions of the spectrum respectively) are determined by means of a pair of detectors provided with appropriate filters. The light source may be an incandescent lamp or one or more LEDs may be used which because of their narrow spectral emission may allow the omission of the filters. The outputs of the detectors are applied to logarithmizers 8, 14 and signals corresponding to the signal obtained with zero haemoglobin concentration are subtracted by means of potentiometers 9, 15 and op amps 11, 17. The resulting signals are directly related to the concentrations of both the oxidized and reduced haemoglobin but differ due to the difference in absorption at different wavelengths resulting in a pair of linear equations with two unknowns. The signals are then combined by op amps 13 and 19 in such proportions that the output of op amp 13 is proportional to the concentration of oxidized haemoglobin only and that of op amp 19 to the concentration of reduced haemoglobin only. A further op amp 20 sums these signals to produce the total haemoglobin concentration and circuit 21 obtains their ratio to produce the oxygen saturation value. A switch K selects any one of the signals for display on a meter 23. Alternative circuit arrangements for solving the simultaneous linear equations to produce the separate concentration signals are described, Figs.3 to 5 (not shown). The detector may be arranged to provide a logarithmic output by terminating it with a large resistance and effectively operating it under noload conditions.
Patent GB-222010-A (GB)
Title: Improvements in or relating to packing for piston rods or the like
IPC: F16J15/34
Filed: 1923-12-28
Abstract: 222,010. Wagner, G. E. Dec. 28, 1923. Stuffing - boxes, substitutes for; packing, metallic; packing, non- metallic. - Packing for a reciprocating rod comprises a number of expansion spaces formed by discs 4 held in position by a spring washer 9. The discs are centered on the rod by conical plugs 7, w h i c h are acted on by spring washers 8 and serve also as relief valves for the spaces between the discs. Where the higher pressure may be on either side of the packing, half of the valves act in one direction and half in the other direction. The valves 7 may be segmental and may be of metal, wood, fibre, or hard rubber &c. The central valves 7 may be supplemented by ball or other relief valves in the discs 4.
Patent GB-1127425-A (GB)
Title: Tipping apparatus for emptying containers, in particular large size refuse containers
IPC: B65F3/04
Filed: 1966-07-19
Abstract: 1,127,425. Tipping refuse containers. E. ZOLLER, and H. SCHULZ ZOLLER. 19 July, 1966 [19 July, 1965; 20 Nov., 1965], No. 32409/66. Heading B8E. A refuse container 1 to be emptied by lifting and tipping has an outwardly extending lip 2 around the upper periphery engageable by a flange 17 of a support frame 15 pivotally mounted at 16 to carrier arms 13 each rigidly attached to lifting arms 11. The rear of the support frame 15 is open to receive the container and a support member 20 across the front partially supports the container during tipping. Pivotally supported bearing pads 22 are mounted above the support frame and to the front of its pivot point and bear upon the container when it is in the inverted position. Extending downwardly and forwardly of the lifting arms 11 are a pair of arms 14 rigidly attached thereto and mounting bearing pads 27 such that when the container has been slightly raised, by rotating the lifting arms, the pads 27 bear against the side of the container to assist in the lifting and tipping. During the initial raisure of the container by the lifting arms through the support frame, said frame pivots about the axis 16 to maintain the container vertical. The spacing and the height of the support arms and the distance between the bearing pads 22 and the support arms is such that the container may be easily positioned between the same without coming into contact therewith. An adjustable stop 25 mounted on the vehicle to which the lifting and tipping apparatus is attached engages the lifting arms 14 to vary the height of the frame 15 to suit the container size. The container has a pair of lids 3 hinged at 6 and mounting actuating stirrups 4 engageable by locking hooks 32 of a lid opening mechanism. The locking hooks 32 are attached to a flap 31 mounted on steering links 35 and movable on rollers in a guide way 34. Counter bearing means 33 attached to the steering links engage the hinges 6 during the tipping and actuate the lid opening mechanism. A flexible rubber sheet 37 is attached to the flap 31 to cover the refuse opening in the vehicle. Lock means 40 pivotally mounted to the carrier arms 13 engage receiving means 42 on the support frame to prevent rotation thereof due to, e.g. movement of the container, when the container is in the inverted position.
Patent GB-245144-A (GB)
Title: Method of assembling the elements of electric cells
IPC: H01M6/08
Filed: 1925-12-23
Abstract: 245,144. Compagnie Franþaise pour l'Exploitation des ProcÚdÚs Thomson-Houston. Dec. 24, 1924, [Convention date]. Electrodes.-Adjacent electrodes are separated from one another by embossments formed on one or both electrodes. The embossments may be in the form of ribs, rings, helices or other projections. Fig. 1 shows the zinc and carbon electrodes a, b of a Leclanche cell, the zinc electrode being provided with protuberances d which abut against an insulating covering on the depolarizing block c.
Patent GB-489426-A (GB)
Title: Improvements in television signal receiving arrangements
IPC: H04N5/44
Filed: 1936-11-26
Abstract: 489,426. Television. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 26, 1936, No. 32435. Convention date, Nov. 26, 1935. [Classes 40 (iii) and 40 (v)] An impedance L<1> , R<1>, across which is developed a voltage varying with received vision signals, is connected between the cathode F and controlling-shield G of a cathode-ray tube, and is also so connected between the cathode K and anode D 1 of a detector for the signals that the cathode of the detector is connected directly to the shield of the tube. The end of the impedance remote from the shield is earthed. A second anode D2 associated with the cathode K is so biassed that electrons flow to the anode only on the receipt of a synchronizing signal. The circuits associated with the two detectors are so connected by a capacity Cn that flow of current to the anode D2 is not produced by currents conveyed by the inherent capacity between the two anodes. A triple-diode valve may be used with two of the diodes as a push-pull detector of the vision signals.
Patent GB-190133-A (GB)
Title: Improvements relating to ringing mechanism for bells
IPC: G10K1/34
Filed: 1922-11-28
Abstract: 190,133. W³st, F. Dec. 12, 1921, [Convention date]. Controlling clutches.-In ringing mechanism in which a bell is oscillated from a continuously-rotating electrically-driven shaft 1 by means of a periodically-operated friction, clutch 2, 3, a friction band 13 passing round a drum 12 is connected at both ends to opposite arms of a three-armed pivoted control lever 11, the alternate rotation of the drum 12 in opposite directions due to the oscillatory movement of the bell effecting through the band 13 and lever 11 the alternate coupling and uncouplinof the clutch member 3. At first, the amplitude of swing increases with each oscillation until a predetermined maximum is reached, when a cam operates to uncouple the clutch members. In order to start the mechanism, a hand lever 23 is raised to the position shown in Fig. 3, in which a finger 25 lifts a spring 26 on the lever 11, and the movement is transmitted through links 9, 8 to the clutch member 3 which is moved into engagement with the driving disc 2. The member 3 is formed as a drum, and carries an endless rope which transmits a driving impulse to the bell. The member 3 also drives through gearing 4, 6 the drum 12 around which passes the friction band 13, which is adjustably connected to one arm of the lever 11 bv means of a bolt 14 passing through the arm. On the return movement of the bell, the pull of the drum 12 on the band 13 causes the spring 15 to restore the lever 11 to its normal position, Fig. 1, thereby uncoupling the disc 3. At the next forward oscillation of the bell, the band 13 again rocks the lever 11 to connect up the clutch mechanism and the bell continues to oscillate with increasing amplitude until a desired maximum is reached, when a cam 16 depresses a pivoted lever 18 and causes a finger 22 to depress the lower end of the bolt 14, so loosening the band 13 and releasing the coupling mechanism. The amplitude of swing of the bell may be varied by varying the angular position of the cam 16. In the inoperative position of the hand lever 23, co-operating fingers 33, 34, 22 hold the band 13 in a loosened condition. In modifications the means for conveying the driving impulses to the bell may comprise a lever controlled by lever 9 which serves to tighten a driving belt, or a gear wheel or toothed. segment with lever connections to the bell. The Specification as open to inspection under - Sect. 91 (3) (a) comprises also a modification in which the friction clutch 2, 3 is replaced bv an electric switch actuated by the lever 11 and controlling an electromagnetic coupling. This subject-matter does not appear in the Specification as accepted.
Patent GB-953177-A (GB)
Title: Improvements in or relating to electromagnetic waveguide systems
IPC: H01P1/32
Filed: 1960-09-22
Abstract: 953,177. Waveguide Faraday rotators. WESTERN ELECTRIC CO. Inc. Sept. 22, 1960 [Sept. 29, 1959], No. 32603/60. Heading H1W. The gyromagnetic element of a Faraday rotation device is provided with an inner core or layer of non- gyromagnetic dielectric material whereby a broad-band effect is achieved. In known rotators, using non- composite elements, the amount of rotation increases with frequency owing to the concentration of the guided wave energy towards the centre of the element. Replacement of the centre of the element with non-gyromagnetic material increases the range over which rotation is acceptably constant. The composite element of Fig. 3 comprises a tube 12 of a suitable gyromagnetic material, e.g. a ferrite, surrounding a core 13, the ratio of the radii r, R being less than 2 and the dielectric constants of the two materials being preferably equal. The element is aligned on the axis of a round wave 10 and is longitudinally polarized either by permanent magnetization or by external means. The dielectric core is extended at its ends to form tapered impedance-matching terminations. The element 40 of Fig. 4 comprises layers 41, 42 of gyromagnetic material arranged on either side of a composite dielectric slab 43, 44. The two parts of the slab are separated by a layer 52 of lossy material whereby a degree of attenuation dependent upon the angle between the polarization and the layer is produced. The slabs 41, 42 may be permanently magnetized or the element may be surrounded by a solenoid. The wedge-shaped ends 45, 46 of the element are supported by dielectric members 10, 51 within the ends of input and output waveguides 48, 49.
Patent GB-1009091-A (GB)
Title: Earth ripper
IPC: E02F5/32
Filed: 1964-08-11
Abstract: 1,009,091. Scarifiers. ATECO PTY Ltd. Aug. 11, 1964 [Aug. 19, 1963], No. 32695/64. Heading E1G. The tine 38 of an earth ripper is mounted on a tractor vehicle through a vertical axis hinge. Two parallel links 15, 16 are pivoted to a plate 5 secured to the rear of a tractor, the lower link 15 being movable vertically by an hydraulic ram 11. Pins 46 connect the ends of the links to transverse tubes welded to blocks 43 to which are hinged two pairs of cantilever arms, 33, 34 and 35, 36, by pins 45. The cantilever arms together with upright 31, side plates 30 and backplate 37 comprise the tine holder 30. In a modification, an intermediate link having two parallel vertical axes couples the tine holder to the blocks 43 to provide the tine with two upright axis of rotation.
Patent GB-1416332-A (GB)
Title: Walking beam conveyor
IPC: B65G25/00
Filed: 1972-07-13
Abstract: 1416332 Walking beam conveyers PLANET CORP 6 July 1973 [13 July 1972] 32748/72 Heading B8A Each crosshead 30 of an assembly for supporting a longitudinal moving beam 12 of a walking beam conveyer has a pair of telescopic guides 25 associated with a pistoncylinder device 23, 24 for moving the crosshead vertically. The device 23, 24 which has a part-spherical portion 31 for engagement with the crosshead, is accordingly not subjected to eccentric loading. The beam 12, which has wear plates 20 supported by rollers 34, is laterally guided by a roller 35 and is located between stationary platforms 13, 14; it is reciprocable longitudinally by a piston-cylinder assembly 40. In Fig. 1, several beams 12 are connected endto-end but the conveyer may comprise a single beam.
Patent GB-650545-A (GB)
Title: A method of fixing pin sleeves for bearings with rolling or sliding elements
IPC: F16C9/00
Filed: 1947-12-12
Abstract: 650,545. Bearings. AVIATION WORKS, NATIONAL CORPORATION, and BREJCHA, R. Dec. 12, 1947, Nos. 32849 and 32850. Convention dates, June 13, 1939, and May 18, 1940. [Class 12 (i)] [Also in Group XXII] In crank-shaft bearings a divided hardened steel pin sleeve 5, 6 for a ball or roller bearing, or divided bronze lateral thrust rings 3a, 3b for a plain side thrust bearing, or both, are secured in annular grooves 3 in the shoulders 2 of the crankshaft 1 by a ring or rings 4 of ductile material such as copper, brass, &c., which is expanded by a rolling process after insertion. The edges of the sleeves are chamfered or rounded off to receive the ductile material, and the rings are dovetailed in position. The ductile material may comprise a ring having a similar profile to that of the grooves, or be cast or sprayed into position. Lubricant is fed from the shaft bore through a radial bore (Fig. 1, not shown), an annular sleeve groove and the split between the sleeve halves to the bearing. Modifications describe the fitting of pin sleeves only or thrust rings only by two ductile rings, and the fitting of both sleeves and thrust rings by a single ductile ring intermediate the length of a circumferentially split sleeve or by two rings situated between the sleeve ends and the thrust ring edges.
Patent GB-660087-A (GB)
Title: Improvements in water gauges for steam-turbine casings
IPC: F01D21/00
Filed: 1949-12-22
Abstract: 660,087. Steam turbines. WOLFENSTETTER, J. Dec. 22, 1949, No. 32870/49. Class 110(iii) [Also in Group XVIII] A steam turbine casing g has a water level indicating device (see Group XVIII) comprising an opening covered by a removable sight glass d approximately at the level of the water discharge point of the boiler. The opening may comprise two vertically spaced holes f co-operating with a slot shaped recess e which is disposed vertically between the holes f either in the exterior face of the boiler casing g in an intermediate member, Fig. 4 (not shown).
Patent GB-306475-A (GB)
Title: Improvements in horns and trumpets for talking machines, loud speakers, and like instruments
IPC: G11B3/00
Filed: 1928-11-12
Abstract: 306,475. Coombs, J. G. Feb. 21, 1928, [Convention date]. Tone-arms.-The sound passage of a gramophone tone-arm or of the throat portion of a horn for loud-speakers, gramophones, &c., is formed with a series of annular contractions D of unsymmetrical axial section and having concave interior surfaces meeting angularly on the ridges and in the furrows. The contraction may be formed, as shown in Fig. 1, by inserting plugs B in the bore or by spinning the metal forming the sound passage, which, as shown in Fig. 4, may be of increasing cross-section.
Patent GB-1275737-A (GB)
Title: Improvements in or relating to pneumatic tyres
Inventor: BISHTON ALBERT ANDREW
IPC: B60C19/00
Filed: 1968-07-11
Abstract: 1275737 Pneumatic tyres DUNLOP HOLDINGS Ltd 11 July 1969 [11 July 1968] 33012/68 Heading B7C To prevent damage to the carcase cords of a tubeless tyre due to leakage of inflationary air into the carcase cords, the tyre is provided with one or more circumferentially extending grooves 7, the or each groove having at its base a plurality of circumferentially spaced holes 11 leading to and terminating at or amongst the cords 4. The grooves 7 are positioned adjacent the radially outermost part of the chafer strip. The or each groove is preferably 5 mm. wide and the thickness of rubber between the base of the groove and the tyre reinforcement is no greater than 1 mm. Preferably the pitch of the holes is between 10 mm. and 12 mm.
Patent GB-335782-A (GB)
Title: Improvements in and relating to raising and lowering gear for ships' boats
IPC: B63B23/18
Filed: 1929-10-30
Abstract: 335,782. Winkler, G., and Meyer, H. Oct. 30, 1929. Boat-lowering gear designed for collapsable boats of the kind comprising an inflatable annulus 1 and flexible bottom, includes bands 2 which are passed beneath the boat fore-and-aft, transversely or cross-wise; the bands being connected by ropes 6 to eyes 11 which are connected to the falls 8. In a further modification, where a transverse band is employed, the falls are connected to eyes passed through rods attached to the bottom of the boat.
Patent GB-1208150-A (GB)
Title: Reclamation of lead-acid storage batteries
Inventor: SHOELD MARK
IPC: C22B13/02
Filed: 1968-07-11
Abstract: 1,208,150. Recovering lead from scrap. M. SCHOELD. July 11, 1968 [July 20, 1967], No.33194/68. Heading C7D. Materials are recovered from the scrap from lead-acid storage batteries containing lead foil, cellulosic paper, sulphuric acid and lead oxide and/or lead sulphate by feeding the scrap to a reaction zone, in the substantial absence of Sb, where they are heated (e.g. by electric resistance heating) to reduce the lead compounds and dissociate the H2 SO4 , the reaction zone being shielded from the entry of oxidizing gases and molten lead being withdrawn at one exit and a gaseous mixture of H2O, CO2 and SO3 at another. The amount of carbon in the paper in the scrap is preferably stoichiometric to reduce the lead compounds.
Patent GB-927180-A (GB)
Title: Improvements in or relating to visual indicating instruments
Inventor: MAJENDIE ALASTAIR MICHAEL ADAI
IPC: G01D7/10
Filed: 1960-09-29
Abstract: 927,180. Indicating apparatus. S. SMITH & SONS (ENGLAND) Ltd. Dec. 15, 1961 [Sept. 29, 1960], No. 33440/60. Class 106 (4). [Also in Group XXXIII] A visual indicating instrument, particularly an attitude indicator for an aircraft, comprises a circular viewing aperture 1 symmetrically positioned within the front face of the casing 2. A conventional roller blind 3, with horizon line 4, is mounted on rollers (not shown) so that line 4 may be moved to indicate pitch and roll with respect to datum marks 5, and a datum mark 7 which moves with the roller blind mechanism registers with a fixed bank scale 6. A transparent screen in front of the roller blind is marked with concentric rings 8, the inner ring being thicker than the remainder. Two flight director indices 9 and 10 are mounted on wires 11 and 12, respectively, for planar movement in directions normal to their lengths by separate mechanisms (not shown) which may be screw jacks driven by electric motors in accordance with a combination of signals representing the aircraft's deviation from a glide path defined by the glide path and localizer beams of a conventional I.L.S. system. The indices are of length equal to or less than half the diameter of aperture 1 and in their undeflected positions they intersect over the thick circle 8. The advantage of the short length of the indices is that if either is moved more than half the full length of the other they do not intersect and it immediately becomes apparent to the pilot the correct action necessary to bring the aircraft on to course. The indices 9 and 10 may be of equal or unequal length.
Patent GB-1238045-A (GB)
IPC: C08G73/10
Filed: 1968-07-12
Abstract: 1,238,045. Glass fabric laminates. RHONE POULENC S.A. 12 July, 1968 [12 July, 1967], No. 33460/68. Heading B5N. [Also in Divisions B2 and C3] Polyimides consisting of units of the formula may be prepared via polyamide acids of the formula where n is at least 1, R is a tetravalent aromatic radical, B is a divalent organic radical containing at least 2 carbon atoms, D is an unsaturated radical of an olefinically unsaturated dicarboxylic acid D(COOH) 2  and A is the radical resulting from polymerization of D through the double bond. The polyamide acid may be prepared by reacting the dianhydride of an acid R(COOH) 4  with a molar excess of diamine NH 2 -B-NH 2  in an anhydrous polar solvent and reacting the solution with the anhydride of an acid D(COOH) 2 . Conversion to the polyimide is effected by heating in the presence of a free radical catalyst. Alternatively, cyclization may be effected by means of a dehydrating agent before the addition polymerization. Numerous examples of the various reactants are given. Applications.-In examples the polymers are used (a) to coat and then laminate aminopropyltriethoxysilane treated glass fibre fabric, (b) to provide 8 coats of enamel on copper wire, (c) powdered and moulded, and (d) cast into a strippable film on glass plate. Reference has been directed by the Comptroller to Specifications 1,073,819 and 1,160,600.