baber/WOPTO huggingface dataset:
Patent GB-386339-A (GB)
Title: Improvements in or relating to the manufacture of doubled crepe yarns
IPC: D02G3/30
Filed: 1931-07-15
Abstract: 386,339. Yarns. BRITISH CELANESE, Ltd., 22, Hanover Square, London, DICKIE, W. A. and FINLAYSON, D., of British Celanese, Spondon, near Derby. July 15, 1931, No. 20286. [Class 120 (iii).] A yarn comprises a plurality of component yarns doubled together to a moderate or high degree, the final degree of twist in each component yarn being also moderate or high, and in at least one component yarn being substantially equal to the degree of doubling twist. Specifications 348,589, 351,999, 352,000, 352,451, 356,233, 357,084, 357,169, 357,576, 378,910, 379,285, and 386,344 are referred to.
Patent GB-269772-A (GB)
Title: Improvements in and relating to knife-wipers for use in type-bar or slug casting machines
IPC: B41B11/72
Filed: 1926-08-18
Abstract: 269,772. Yates, P. Aug. 18, 1926. Trimming type-bars.- A wiper for the trimming- knives of type bar-making machines comprises a blade, which is hinged or flexible, or both hinged and flexible, and is mounted on the mould-wheel so as to revolve therewith. In the form described, a leather or other flexible blade f is secured between metal clamping-members g, h, which are pivoted to a bracket a secured to the face of the mould-wheel. The blade is held by a spring l in contact with lugs k on the bracket, so that it normally projects at right-angles to the mould-wheel. A separate blade may provided for each knife, or a single blade may serve for both knives.
Patent GB-513382-A (GB)
Title: Sparking plug
IPC: H01T13/36
Filed: 1938-07-11
Abstract: 513,382. Sparking-plugs. WERTH, K. July 11, 1938, No. 20501. [Class 7 (iv)]. Enamel coatings 6, 11 are used as insulation on both the central conductor and outer casing; the two coatings may be fused together.
Patent GB-1104113-A (GB)
Title: Production of blown hollow bodies
Inventor: BIRTWELL JOHN TEMPEST
IPC: B29C49/22
Filed: 1964-05-19
Abstract: 1,104,113. Blow-moulding coated tubes. BRITISH XYLONITE CO. Ltd. 17 May, 1965 [19 May, 1964], No. 20503/64. Heading B5A. A tubular workpiece of organic thermoplastic material is coated externally and/or internally with a conditioning medium (as defined), to form a diffusion or protection barrier, or a coloured layer, heated to plasticize it and the coating (the two being compatible), expanded in a mould by internal fluid pressure and cooled thereby to form a hollow body at least one side of which is covered with a layer of the extended conditioning medium. The coating may be done by spraying, dipping or roller coating and the tube supported by a mandrel between mould halves during the blowing operation. Rigid P.V.C. may be coated with liquid epoxy resin. Other workpiece materials are polyethylene and polystyrene. Migration barrier materials are polyester and epoxy resins, polyvinylidene chloride and polyurethane which can also act as chemical barriers. Decorative gloss is provided by acrylic resins.
Patent GB-404941-A (GB)
Title: Improvements in or relating to closures for bottles or like receptacles
IPC: B65D45/32
Filed: 1932-07-20
Abstract: 404,941. Closures for bottles &c. SUTTON, G. J., 14, Victoria Street, London. July 20, 1932, No. 20522. [Class 125 (iii).] In a closure for bottles &c. having a peripheral retaining edge on the bottle neck and a tearable sealing element engaging beneath it, the lower skirt portion of the sealing element is spaced from the adjacent neck surface at one or more points below the edge by virtue of interruptions formed in a bead disposed beneath it. As shown, the tearable sealing element consists of a sleeve 20 of cellulose product, which is applied, while wet, to the mouth of a bottle sealed with a disc 13 seating in an annular groove 12, the vertical depth of the groove being not greater than the thickness of the disc. The sleeve is then dried and shrinks, the upper skirt portion thereof turning over and pressing on the disc and the lower portion shrinking into a groove 14, the upper edge of which forms a retaining edge. The groove 14 is interrupted by a recess 16 extending across the lower portion 15 of the bead, over which the dry sleeve is stretched tightly, so that a finger or tool can be inserted thereunder to rupture it. The interruptions may be in the form of projections, and the groove 12 may be dispensed with, the disc being positioned on the bottle mouth. The disc and sleeve may be made integral of flexible pasteboard, &c., or of metal. In certain cases the sleeve may be mechanically pressed into the groove 14. The tearable element may be a strip which on application forms a sleeve.
Patent GB-475376-A (GB)
Title: Electron discharge devices
IPC: H01J19/02
Filed: 1936-07-24
Abstract: 475,376. Discharge apparatus and generating and amplifying circuits therefor. STANDARD TELEPHONES & CABLES, Ltd., and HEISING, R. A. July 24, 1936, No. 20525. Convention date, Oct. 3, 1935. [Classes 39 (i) and 40 (v)] An electron-discharge device comprises a cathode 16, Fig. 1, a plurality of pairs of anode elements 17 having closely adjacent end portions, a control electrode comprising a plurality of pairs of members, such as rods 18, 18a, disposed on opposite sides of electron paths 19 from the cathode to the closely adjacent end portions of the anodes, and a focusing electrode 24 for focusing electrons upon the end portions of the anodes. An accelerating electrode 21 may be provided with openings 22 on the paths 19 ; an additional focusing electrode 23 may focus the electrons from the cathode upon these openings. The cathode filaments disposed in a plane may be in series or in parallel. The focusing and control electrodes 18, 23, 24 may be at positive or negative potentials and control potentials applied between opposite pairs 18, 18a, deflect the beams from one to another of overlapping anodes 17, which are connected together alternately. A modification is described in which the electrodes are all arranged in cylindrical boundaries coaxial with a single cathode. When used as an amplifier, the input and output circuits are connected in push-pull to electrodes 18, 17 respectively. In Fig. 4 is shown the connection as an oscillator. The pairs of control electrodes 18 are connected to opposite ends of tuned circuit 37, 38; similarly the anode pairs 17 are connected to opposite ends of tuned circuit 35, 36, centre tap connections being taken to suitable batteries 29, 31. At high frequencies it is necessary to compensate for the phase difference due to the finite velocity of electrons, either by slightly detuning the circuits or by coupling them by a short transmission line 41, with suitable isolating condensers 42. A grid-leak 39 and condenser 40 are provided.
Patent GB-1461992-A (GB)
Title: Method of and a machine for filleting fish
IPC: A22C25/16
Filed: 1975-05-15
Abstract: 1461992 Filleting fish NORDISCHER MASCHINENBAU RUD BAADER 15 May 1975 [20 Dec 1974] 20536/75 Heading A2U A machine for producing boneless fish fillets from which the bellyflaps, including the pin bones, have been removed-Fig. 3-comprises conveying means to convey a fish along a linear portion of feedpath with the backbone of the fish longitudinally orientated with respect to the path, a belly filleting knife 11, 12 on each side of the feed path portion to make a belly cut to separate each belly flap from the pelvic fin bone of the fish, a back filleting knife 21, 22 disposed on each side of the feed path to make a back filleting cut to separate each fillet from the backbone of the fish, a pin-bone knife 31, 32 disposed on each side of the path to make an incision in each side of the fish just above the pinbones thereof and longitudinally in the vicinity of the belly cavity, said incision extending inward to the dorsal vertebral projections of the fish, a cross-cutting knife 51, 52 disposed on each side of the path to make a lateral outward incision through each belly flap in the vicinity of the end of the belly cavity and a pair of rib knives 81, 82 to separate each belly flap from the lateral vertebral projections and the ribs of the fish, the cross-cutting knives 51, 52 being disposed downstream of the pin-bone knives 31, 32 and upstream of the rib knives 81, 82. The embodiment shown also includes separating knives 41, 42. Guides 61, 69 which together with cross-cutting knives 51, 52 may be moved together or apart, distort the belly wall of the fish so that the knives make lateral cuts.
Patent GB-638861-A (GB)
Title: Improvements in and relating to electromagnetic induction apparatus
IPC: H01F38/30
Filed: 1945-08-10
Abstract: 638,861. Current transformers. BRITISH THOMSON HOUSTON CO., Ltd. Aug. 10, 1945, No. 20542. Convention date, Aug. 16, 1944. [Class 38 (ii)] Electromagnetic induction apparatus such as a current transformer comprises an annular winding, an annular core which extends through the window of the winding, and a coil wound round a part only of the core so that it is concentrated on the core where it passes through the window of the winding. The annular core is made from flatwise, bent, magnetic strips 6 and completed by a removable yoke 9 at overlapping butt joint areas in the manner described in Specification 621,675. The secondary 7 is wound round the main part 6 of the core and concentrated mainly where it is interlinked by the primary coil (not shown), so that the primary leakage flux which on high loads would saturate the core, is counteracted by the secondary leakage flux so that the ratio correction factor is kept lower and more constant. The yoke 9 is inserted and insulated with material such as crepe paper 14, after secondary 7 and insulation 8 have been wound on part 6 of the core and the primary ring has been placed in its linking position. By omitting some of the strip from yoke 9, a part 20 of the secondary winding may be wound round part only of the core to give partial compensation. Specification 539,730 also is referred to.
Patent GB-1410267-A (GB)
Title: Permanent magnet
IPC: H01F1/053
Filed: 1973-04-30
Abstract: 1410267 Cobalt rare-earth alloys GENERAL ELECTRIC CO 30 April 1973 [1 May 1972] 20559/73 Heading C7A A sintered permanent magnet cobalt rare-earth product comprising by weight:- 62 to 66% cobalt 34 to 38% samarium and neodymium the neodymium forming 40 to 60% of the rareearth content and the sintered product having substantially non-interconnecting pores and a density of at least 67% of theoretical is prepared from a base Co 5 R alloy and an additive cobalt rare-earth alloy richer in rare-earth content than the base alloy by sintering at 1050 to 1150C and heat-ageing at a temperature not more than 400 degrees below the sintering temperature. It is claimed that the sintered product has a maximum energy product (B H ) max of at least 14 x 10<SP>6</SP> gaussoersteds.
Patent GB-315836-A (GB)
Title: Improvements in telegraphic and similar repeating systems employing vacuum tube amplifiers
IPC: H03F1/33
Filed: 1929-07-05
Abstract: 315,836. Electrical Research Products, Inc., (Assignees of Burton, E. T.). July 19, 1928, [Convention date]. Thermionic valve circuits. - Comprises means for rendering the characteristic of a valve system symmetrical or straight, even when the system is feeding into a low impedance and working at high amplitude. In the " positive compensator " shown in Fig. 1 input signals are applied through the potentiometer 15 to the grid of the main amplifier 14 and also to that of the compensator valve. 16. Positive signals cause an increased potential drop in the resistance 19 in consequence of the increase in plate current in the valve 16, and this potential drop reduces the grid voltage of the valve 14, thus compensating for the tendency to excessive amplification of strong positive signals, while negative signals are unaffected by the compensator. In a " negative compensator " for reducing the output current for negative signals, so as to prevent distortion of the even harmonics of a signal, while leaving that for positive signals unaffected, the connections of the resistance 19 and of the electrodes of the compensator valve are reversed, Fig. 3 (not shown), and in another positive compensator, Fig. 5 (not shown), the plate of the compensator valve is tapped from a potentiometer shunting the grid of the main valve. These arrangements have advantages over push-pull methods of straightening the characteristics of the amplifier in that they facilitate the balancing of cable circuits and do not require the use of transformers. They also avoid the necessity of inserting resistance to secure a high output impedance. In a further modification, Fig. 7 (not shown), two compensator valves are employed, their plates being connected to one another directly while their grids are tapped off different voltage-levels of the same grid biassing battery, and one terminal of this battery is tapped off an input potentiometer whereof two different sections serve for the reception of the high-frequency (low-impedance) and the low-frequency (high-impedance) signals respectively. These signals are thus delivered separately to the input circuit as described in Specification 312,904, [Class 40 (iii), Telegraphs, Electric]. In the arrangement shown in Fig. 8 compensation is effected in the output circuit of the amplifier 42 instead of its grid circuit. Thus a positive impulse on the grid of the valve 41 causes an increased voltage drop in the resistance 44; the grid of the valve 42 consequently becomes more positive, the voltage drop in resistance 43 is further increased, and thus a compensating reduction occurs in the plate voltage of valve 41.
Patent GB-1166975-A (GB)
Title: Solvent Separation
IPC: C10G21/28
Filed: 1968-05-01
Abstract: 1,166,975. Solvent refining process. TEXACO DEVELOPMENT CORP. 1 May, 1968 [20 June, 1967], No. 20709/68. Heading C5E. A method for the solvent refining of a lubricating oil charge stock for the removal of constituents having a low viscosity index and poor stability comprises contacting said lubricating oil charge stock with a solvent stream comprising N-methyl-2-pyrrolidone (NMP) and not more than 1À0 weight per cent water, effecting separation of a refinate-mix comprising a major portion of oil with a minor portion of said solvent dissolved therein and an extract-mix comprising a major portion of said solvent with said constituents having a low viscosity index and poor stability dissolved therein, adding water to said rafinate-mix in an amount of 2À0 to 20 weight per cent of the NMP dissolved therein, effecting separation of an oil phase and a wet solvent phase comprising at least 2À0 weight per cent water, distilling said oil phase effecting separation of remaining solvent as distillate from bottoms comprising refined oil, and recycling at least a portion of said wet solvent in admixture with solvent of lower water content to comprise at least a part of said solvent stream comprising NMP and not more than 1À0 weight per cent water. The preferred amount of water to be added to the raffinate-mix is about 5%. The extract and the raffinate may be separately steam stripped.
Patent GB-332388-A (GB)
Title: Improvements relating to the surfacing of concrete roads with bituminous material
IPC: E01C7/32
Filed: 1929-07-06
Abstract: 332,388. Robinson, S. J. L., and Mann, J. C. July 6, 1929. Concrete flooring.-In the surfacing of roads &c. with bituminous material, small fragments of pitch, bitumen, asphalt, or other bituminous material are distributed in an open mosaic fashion over the surface of the concrete before setting, and are tamped or rolled flush or substantially flush, so that, after the concrete is set and the tar or other surfacing coat is applied, the latter will be positively keyed to the concrete. In an 'alternative method, for use where a concrete surface is finished off with a thin layer of screeded cement applied while the concrete is still "green," the fragments of bituminous material may be mixed with the cement before it is spread.
Patent GB-716842-A (GB)
Title: Improvements in or relating to silicon nitride-bonded silicon carbide material and articles composed thereof
IPC: C01B33/00
Filed: 1952-08-19
Abstract: A refractory and abrasive article comprises silicon carbide bonded uniformly throughout its mass with a substance of the formula Si3 N4 and which substance does not contain any unconverted silicon.  At least 5 per cent.  Si3 N4 is present.  The article is made by firing a moulded mixture of silicon carbide grains and silicon of a size passing 200 U.S. standard mesh in a nitrogenous atmosphere.  To aid in moulding pentonite may be added.  Specification 716,836 is referred to.
Patent GB-202500-A (GB)
Title: A new or improved preparation for veterinary use
IPC: A61K36/8962
Filed: 1922-07-29
Abstract: 202,500. Laidlaw, W. H. July 29, 1922. Hypodermic injections.-A veterinary remedy to be administered by injection or inoculation is prepared by treating French garlic bulbs with spirit of turpentine.
Patent GB-1502965-A (GB)
Title: Provision of wire connections for semiconductor devices
IPC: B23K20/00
Filed: 1975-05-16
Abstract: 1502965 Welding by pressure; welding electrical contact PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 16 May 1975 [21 May 1974] 20840/75 Headings B3R and B3A In a method of welding a wire 9 (e.g. gold) to a semi-conductor body 1, an electric spark discharge between an electrode 10 and the end of the wire 9 melts the wire to form a ball 11 below a recess 8 in the welding surface 6 of a welding tool 5, preferably an ultrasonic sonotrode, whereupon the tool 5 presses the ball 11 on to a contact place 2 of the semi-conductor body 1 to produce the weld. The welding tool 5 also produces a weld between the wire 9 and a supply conductor, without the formation of a ball 11 (Fig. 6, not shown). The electric spark discharge may be provided by way of a transformer fed by a discharge capacitor, the discharge time being less than 5 msec. and the energy of the discharge (hence the size of the ball) determined by the capacitor voltage. The recess 8 can either be a groove transverse to the wire 9, which is fed to the welding surface by way of a hole in a separate plate (not shown) or an aperture 7 in the welding tool, or a cone having an apex of 120 degrees. On completion of the weld to the supply conduction the tool remains in its welding position as the wire is snapped by pulling.
Patent GB-1336479-A (GB)
Title: Reclosable cartons
IPC: B65D5/66
Filed: 1971-04-19
Abstract: 1336479 Cartons CHRISTENSSONS MASKINER & PATENTER AB 19 April 1971 [13 Feb 1970] 20868/71 Heading B8P A carton comprises a cardboard body and a plastics lid 35 which is hingedly attached thereto. The lid 25 has an L-shaped peripheral flange 40 and a depression 39 which together form a groove (36) in which is received a hinged flap 34 formed in the rear wall II of the body by means of a crease line 31 and cuts 32, 33. The lid 35 has further depressions 37, 38 forming grooves (36) for engagement with the front wall 13 of the carton body. The flange 40 is widened at the front to form a grip tongue 41. A tubular plastics liner 28 is attached to the inside of the carton body.
Patent GB-1156886-A (GB)
Title: Telecommunications Exchange
IPC: H04Q3/545
Filed: 1967-05-05
Abstract: 1,156,886. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORP. 5 May, 1967 [11 May, 1966], No. 20926/67. Heading H4K. In an automatic exchange with a central control servicing a plurality of calls in time divided manner and having a common store with a different section allotted for each call and functioning as a register for all data relating to that call, each register section includes a location in which is recorded an indication of whether the call is a local or trunk call and a further location which receives the number of a called subscriber in the case of a local call and functions as a buffer store for dial pulses to be sent to the remote exchange in the case of a trunk call. As shown, for local calls subscribers such as TlnA and TlnB are connected to opposite sides of local junctors VSi through a switching network KN in known manner while for a trunk call a local subscriber is connected to an outgoing junctor VSa. The subscriber circuits and junctors are scanned cyclically by a scanning device A. The central logic L constantly receives the switching conditions of the elements being scanned. The central logic assigns for each connection to be established a storage section formed by a row R1 . . . RN of a core store MR. A portion RT of that row is used to store the number of the calling subscriber as derived from the position of the scanner. A portion GT receives the number of the wanted subscriber. If the central logic determines after having received part of the wanted number that an outgoing line is required an indication of this is stored at a location K in the corresponding storage section. As dial pulses of the next digit are received they are accumulated in a location Z1 After the first such pulse has been received a gate T is opened gating pulses from a central pulse generator IG to the outgoing junctor and thus to the outgoing line. These pulses are simultaneously fed to the central logic and are accumulated in a location Z2. The number stored at the location Z2 is normally one less than the number stored at Z1. During an interdigit pause these numbers become equal. The central logic responds to this by closing gate T and clearing the locations Z1 and Z2 ready for the next digit. If required for subsequent switching the initial digits used to determine that a call is a trunk call may also be stored at GT and transmitted to the remote exchange.
Patent GB-258244-A (GB)
Title: Improvement in electric terminals
IPC: H01B17/26
Filed: 1926-08-27
Abstract: 258,244. Dubilier Condenser Co. (1925), Ltd., (Assignees of Nyman, A.). Sept. 10, 1925, [Convention date]. Condensers. - A terminal for high voltage, high frequency apparatus comprises a conductor 1 mounted in diaphragms 4, 5 of mica &c. attached to a support 10 on which is formed a projection 11 that provides a spark gap between it and the conductor 1 to protect the condenser or other apparatus to which the terminal is connected. The conductor 1 is screwed at each end to carry nuts 6, 7 that screw down upon mica washers 8, 9 and grip the diaphragms 4, 5 against the ends of a sleeve 2. The diaphragm 5 may be perforated for ventilation.
Patent GB-515133-A (GB)
Title: Improvements in glare-free ophthalmoscopes
IPC: A61B3/15
Filed: 1938-07-16
Abstract: 515,133. Ophthalmoscopes. BUSCH AKT.-GES. OPTISCHE INDUSTRIE, E. July 16, 1938, No. 21197. Convention date, July 24, 1937. [Class 97 (i)] In a glare-free hand opthalmoscope in which an image of the fundus of the examined eye b is produced by a concave mirror a, plane reflectors e, f, are so disposed before and after the concave mirror in the path of the rays that the image of the fundus produced by the concave mirror lies between this mirror and the reflector f adjacent to the ocular o of the instrument, at a distance from the reflector sufficient to avoid trouble due to surface defects of the reflector. The reflector f is preferably a roof prism. The ocular o comprises two lens turrets i, k, providing fine and coarse adjustment respectively, the power of the lenses in turret k increasing by 10 diopters from lens to lens, and thatin turret i by 1 diopter. The fundus is illuminated by a lamp g via mirrors h, a and e. To facilitate removal for cleaning, the mirror a is preferably mounted at the end of the handle of the instrument.