baber/WOPTO huggingface dataset:
Patent GB-193258-A (GB)
Title: Improvements in amplifying chambers for talking machines, such, for instance, as phonographs and gramophones
IPC: G10K13/00
Filed: 1922-02-07
Abstract: 193,258. Zornig, J. T. Feb. 7, 1922. Cases with internal horns. - Relates to gramophones and the like having an internal horn formed integrally with one of the walls of the casing. Fig. 1 shows the horn made of wood, and comprising four angularly connected boards a which may be curved longitudinally, their outer ends being bent as shown to form the integral front wall b of the casing. Fig. 3 shows the horn made of a hard stone-like resonant material (such as porcelain, or marble cement with barium oxide &c. added thereto), which is made in une piece with the wall d of the casing by casting or thelike. Wires e or canvas may reinforce the wall d.
Patent GB-731668-A (GB)
Title: Improvements in or relating to electric pulse generators for coaxial lines
Inventor: WHITBY HERBERT CLUCAS
IPC: H01H51/28
Filed: 1952-02-11
Abstract: 731,668. Electromagnetic interrupters. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Jan. 23, 1953 [Feb. 11, 1952; May 5, 1952], Nos. 3502/52 and 11265/52. Class 38 (5). A pulse generator for producing very steepfronted pulses having a rise time less than a milli-microsecond in a charged coaxial line comprises (see Fig. 1) a brass tubular outer conductor 1 supporting inner conductor sections 5, 6 in insulators 7, 8. An intermediate section 13 of the inner conductor is connected to the section 5 by a leaf spring 12, the sections 5, 6, 13 being of iron and silver plated. On energization of a coil 19 with A.C. having a frequency equal to ¢ the natural frequency of the spring 12 and section 13, the section 13 is vibrated so that platinum contacts 15, 17 on the sections 13, 6 close against the opening bias of the spring 12 twice during each cycle of the A.C. The inclined faces 14, 16 introduce slight rubbing and hence cleaning of the contacts 15, 17 and also reduce contact bounce. In another construction (see Fig. 1 (Comp.)) the sections 5, 13 have tungsten electrodes 15a, 17a between which a spark discharge may pass when the electrodes are in the position shown. Hence on vibration of the section 13 by an A.C. field a spark discharge takes place each time the electrodes approach each other and is extinguished when the section 13 reaches its positions of maximum amplitude. In use, the generator is connected between two sections of coaxial line, one of which is charged through a resistance from a voltage source and the other is terminated in its characteristic impedance. The pulses generated are of the order of milliseconds in width and the switching frequency is of the order of hundredths of a second. The charging resistance is of such value that negligible charging occurs during the period of a pulse, but that the line is fully charged within a period of a switching cycle. Hence, each time the contact is made, or a spark discharge takes place, the line is discharged and a pulse generated, the line being recharged between whiles.
Patent GB-1393865-A (GB)
Title: Self-centering jaw chuck
IPC: B23B31/16
Filed: 1974-01-25
Abstract: 1393865 Chucks HARDINGE BROS Inc 25 Jan 1974 [7 Feb 1973] 03615/74 Heading B3B A chuck comprises a chuck body 12, a plurality of master jaws 16, each of the master jaws having one or a pair of circumferentially spaced fixed portions 84 rigidly secured to the body member and a radially reciprocable portion 90 positioned circumferentially between the fired positions, resilient means integral with and connecting said fired portion or portions and said radially reciprocable portions a work gripping member 66 secured to each of said radially reciprocable portions, means axially reciprocable in said body member for radially reciprocating said radially reciprocable portions and associated work gripping members between work gripping and release positions, whereby the flexure of said resilient means provides a self-centering action of said work gripping members. Each master jaw has slots 68, 70, 78, 80 and 82 which give leaf spring members 92, 94, 96 and 98 which join portions 84 to portion 90. Movement of portion 90 is by a draw bar 26, cam plate 112 and cam head 116. The cam head, one for each jaw, is attached to the draw bar and can slide over the cam plate which is fixed to portion 90. Rearward movement of the draw bar causes inward movement of portions 90 and vice versa.
Patent GB-403827-A (GB)
Title: Improvements in and relating to valve lifting devices
IPC: B25B27/26
Filed: 1933-02-06
Abstract: 403,827. Valve-spring lifters. DEVINE, J. P., 107, High Street, Shepparton, Victoria, Australia. Feb. 6, 1933, No. 3636. Convention date, Feb. 4, 1932. [Class 61 (ii).] A valve lifter comprises a frame 10 adapted to engage the cylinder 16 and a slidable member 19 with ledges 20 adapted to engage under the head of the valve 17 and operated by a bell crank lever 22 pivoted at 23 to the side members of the frame and connected to a loop like link 24 guided on a rod 25 which is pivoted at 26 to the stem 21 of the slide 19 and retained against an adjustable nut 27 on the end of the rod by a spring 28. Jaws 30, 31 carried respectively by the stem 21 and frame 10 serve for compressing a spring 171. Modifications in the valve head engaging means are described comprising in one construction a pair of ledges adjustable inwards by bolts engaging slots in the slidable member and in another construction a pair of hook members depending from a pivot on that member and in a further construction a single ledge gapped at one edge to clear the valve stem.
Patent GB-613858-A (GB)
Title: Brick kiln
IPC: F27B13/00
Filed: 1946-02-05
Abstract: 613,858. Brick kilns. CLARK, J. R. Feb. 5, 1946, No. 3653. [Class 51(ii)] A kiln for use in the manufacture of bricks and other ceramic products comprises a kiln floor divided into a plurality of brick heating zones each of which is provided with openings for the induction or eduction of hot gases, hoods arranged in batteries' each battery being disposable over a series of adjacent zones, the hoods being adapted to close in the zones to provide chambers for the ware or bricks stacked in the kiln floor in the said zones, firing means included in one chamber for each battery, and means for circulating the hot gases from said firing chamber to the openings in the floor of another chamber. The invention is shown applied to an annular kiln in which the floor 29 is provided with partitions 40 co-operating with hoods 41 to form ware holding chambers, said chambers being sealed by firebrick columns forming end seals 52, Fig. 6, and top seals 53 with the partitions 40, and by flanges at the foot of the side walls extending into sand troughs 51. The partitions 40 may be made hollow for air cooling Fig. 15 (not shown). Parallel slots 36, Fig. 5, in each chamber hearth communicate with flues 30 having vents 31 and dampers 34 leading to a circular flue 32 having vents 31<1> and dampers 67, the vents being covered where necessary by suction fans 68. Each hearth is formed between the slots 36 with guide strips 381 on which are supported cellular blocks 39. Each battery comprises a cooling chamber C, Fig. 1, firing chamber F, preheating chamber P and setting and drying chamber S-D, and by suitable manipulation of the dampers 34 and 67 and the fans 68 gases from the chamber C pass to the opposite chamber S-D and gases from the chamber F pass to the adjacent chamber P, each chamber F being equipped with firing openings formed in the side walls near the crown of the hood. The bricks &c. are formed in a rotatable unit 26 and fed into the chambers by a retractable conveyer 28.
Patent GB-556242-A (GB)
Title: Manufacture of new mordant dyestuffsff
IPC: C09B57/00
Filed: 1942-03-19
Abstract: 556,242. Dyes ; printing. DURAND & HUGUENIN AKT.-GES. March 19, 1942, No. 3656. Convention date, March 19, 1941. [Classes 2 (iii) and 15 (ii)] Mordant dyestuffs are prepared by reacting N - phenyl - # naphthylamine or substitution, e.g. sulphonic acid derivatives thereof with a nitroso compound of an o - hydroxycarboxy compound of the benzene series or a metal compound thereof. In examples : (1) the copper compound of nitrososalicylic acid is reacted with 3<SP>1</SP> - carboxy - 4<SP>1</SP> - hydroxyphenyl 2 - amino naphthalene 6 - sulphonic acid, prepared from 2 - hydroxynaphthalene - .6 sulphonic acid and p - aminosalicylic acid ; printed on cotton with a chromium mordant the resulting dyestuff is resistant to hydrosulphite discharge : (2) the copper compound of nitroso - o - cresotinic acid is reacted with 3<SP>1</SP>- carboxy - 4<SP>1</SP> - hydroxyphenyl - 2 - aminonaphtha lene - 5 - sulphonic acid : the dyestuff when printed on silk with a chromium mordant gives bordeaux tints : (3) the copper compound of nitrososalicylic acid is reacted with 2 - phenylaminonaphthalene - 5 - sulphonic acid. The following components are' also mentioned : 2 (o - tolyl) - aminonaphthalene - 6 - sulphonic acid, 2 - (4<SP>1</SP>- chlorophenyl) aminonaphthalene - 6-sulphonic acid, 2 - (3<SP>1</SP> - carboxyphenyl) - amino, naphthalene - 7 - sulphonic acid and 2 - (3<SP>1</SP>-carboxy - 4<SP>1</SP> - hydroxyphenyl) - amino - 8 - sulphonic acid. The nitroso compounds are prepared from the o - hydroxy carboxybenzene, sodium nitrile and copper sulphate. The use of the dyestuffs for chromprinting on viscose is mentioned.
Patent GB-966522-A (GB)
Title: Improvements relating to aerial vehicles having jet propulsion engines
Inventor: MARCHANT FRANCIS CHARLES IVOR
IPC: B64D27/26
Filed: 1960-02-02
Abstract: 966,522. Self-propelled missiles. BRISTOL SIDDELEY ENGINES Ltd. Jan. 31, 1961 [Feb. 2, 1960], No. 3684/60. Heading F3A. [Also in Divisions B7 and F1] An aerial vehicle has a jet-propulsion engine supported externally from the vehicle and having a water-tight casing 17, 18 with a water-tight closure 19 for closing an opening adjacent the exhaust nozzle. The engine is a reverse flow gas-turbine engine fixed at 15a to fuselage 9 provided with a launching rocket motor 11. The closure member 19 mounted on the vehicle by a pin 29 is opened and closed by a rod 31a and a lever 31 pivotally mounted by a collar 30 on pin 29, dogs 34 on collar 30 engaging dogs 35 on a further collar 30 splined to pin 29 and carrying a lever 32 connected by an over-centre spring 33 to the vehicle, a limited lost-motion existing between dogs 34, 35. The spring 33 holds member 19 either in a water-tight closed position against casing 17, 18, or in an open position where it acts as a heat shield. In Figs. 4, 5 (not shown), an additional sliding closure member is mounted at a forwardly located air intake, both closure members may be operated together or independently. Prior to launching the closure member or members are closed and are again closed prior to landing (e.g. in the sea) to protect the engine and to enable the casing to act as a buoyancy tank.
Patent GB-174291-A (GB)
Title: Improvements in or relating to pneumatic tyres and in the manufacture thereof
IPC: B60C5/04
Filed: 1921-01-31
Abstract: 174,291. Andrews, J. A. Jan. 31, 1921. Addition to 172,430. Air-tubes. - A modification of the air-tube described in the parent Specification comprises t w o spaced insets 6 of cork, sponge - rubber, &c. arranged at the sides of the centre-line of the tyre. The rim portion 2 of the tube may be thickened as shown.
Patent GB-372812-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02M57/02
Filed: 1931-02-06
Abstract: 372,812. Fuel injectors. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London.- (Hill-diesel Engine Co.; 238, Mill Street, Lansing, Michigan, U.S.A.) Feb. 6, 1931, No. 3838. [Class 7 (iii).] An injection nozzle R comprises a perforated disc and a spring- pressed valve S.
Patent GB-789845-A (GB)
Title: A method and apparatus for treating meat containing products, (e.g. sausages)
IPC: A23B4/052
Filed: 1956-02-07
Abstract: 789,845. Smoked sausages. HILGELAND, P. H. Feb. 7, 1956, No. 3876/56. Class 49. The production of sausages such as saveloys, frankfurters and encased luncheon meat entails successively placing a loaded trolley of the meatfilled casings in a smoke chamber and in a steam chamber to smoke and cook the sausages as required; and then cooling the sausages, either after their removal from the chamber or in this chamber, by placing them in cold water or by directing cold water on to them. The sausages may be dried in the smoke chamber before they are smoked. Smoking may be for 45 minutes at 80‹ C. Cooking by steam may be for 10 minutes at 80‹ C. The apparatus of the drawing comprises smoke chambers 2 and 3, a cooking chamber 4, and a sausage-supporting trolley 5 which is moved in and out of each chamber. Fuel gas supplied by a pipe 16 is burnt in chambers 2 and 3 for drying the sausages before smoking. Smoke for smoking the sausages is produced by igniting sawdust in trays 9 in the chambers 2 and 3; the smoke leaves the chambers by way of chain-operated dampers 12 and 13 to a common flue 11. Steam is distributed from holes in a pipe 15 into the chamber 4 for cooking the sausages. In the chamber 4 there may be provided a water pipe 17 with nozzles 18 for spraying water on to cooked sausages.
Patent GB-465010-A (GB)
Title: Improvements in combined fan and electric heater units
IPC: F24H3/04
Filed: 1936-02-08
Abstract: 465,010. Unit air-heaters. MATHER & PLATT, Ltd., and MARSLAND, S. W. Feb. 8, 1936, No. 3911. [Class 137] [Also in Group XI] In an electric unit heater, the resistance wires, which extend radially between hooks g on an outer insulating-ring h and hooks i, j on inner insulating-rings k, m, are kept in tension by a spring q tending to separate the rings. The hooks and wires are all disposed in the path of the air delivered by the fan a which is driven by an electric motor b. In a modification, the wires are tensioned by axial rotation of the inner ring from which they extend to a double row of hooks on the outer ring.
Patent GB-1338334-A (GB)
Title: Glass container fault detection apparatus
IPC: G01N21/90
Filed: 1972-01-27
Abstract: 1338334 Detecting cracks in glass containers POWERS MFG Inc 27 Jan 1972 [25 June 1971] 3917/72 Heading C1M [Also in Division B8] An inspection apparatus for detecting faults in glass containers includes a conveyer 12 for conveying a container 15 through a test area, an endless belt 24 parallel to the conveyer 12 which contacts the container to rotate it about its axis, at least one pair of rollers 16 mounted on a carriage reciprocal parallel to the conveyer 12 which press the container against the belt 24, a pair of rollers 38, 40 mounted on a second carriage reciprocal parallel to the conveyer which contact the top of the container to counteract vertical forces arising from its rotation, and a crack detector comprising a light source 52 and a sensor 60. The rollers 38, 40 together with a line over finish sensor 48 are mounted on the second carriage by means of a vertically movable plunger 28. A block 23 having an angled cam face (27) is located downstream of the test area to cause the container to lose contact with the belt 24.
Patent GB-660840-A (GB)
Title: An improved carriage for the transport of golf clubs
IPC: B62B1/04
Filed: 1949-02-14
Abstract: 660,840. Hand trucks. TOMPSON, J. B. March 14, 1950. [Feb. 14, 1949] No. 3947/49. Class 108(i). A carriage for the transport of golf clubs and accessories comprises a light tubular or like frame 11 mounted on large diameter wheels 30 to stand normally substantially upright, the frame supporting at its lower end a platform 14 divided into a plurality of receptacles 15, each to receive the one end of a golf club, and supporting towards its upper end a series of spring clips 18 each to receive the shaft 19 of a club whereby the clubs are mounted individually on the carriage in spatial relationship. The wheels 30 are carried by a triangulated frame 12 which is removable from the frame 11 for stowage. A handle 21 is provided on the upper end 20 of the frame 11 to which it is hinged at 22. A removable canvas cover may be provided for the clubs and also canvas pockets for golf balls &c.
Patent GB-556310-A (GB)
Title: Improvements relating to alternating electric current rectifiers of the selenium type
IPC: H01L21/12
Filed: 1942-03-25
Abstract: 556,310. Asymmetrically-conducting resistances. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., THOMPSON, L. E., and JENKINS, A. March 25, 1942, No. 3955. [Class 37] The counter electrode of a rectifier, applied directly to a selenium layer, is made wholly or mainly of silver.
Patent GB-874219-A (GB)
Title: A process for the preparation of cobalamine compounds
IPC: C07H23/00
Filed: 1960-02-04
Abstract: Hydroxo-cobalamines are obtained by reducing a cyanocobalamine with a titanium (III) compound, separating the hydrocyanic acid from the resulting reduced cobalamine and oxidising the latter in the absence of cyanide ions.  The process may be carried out in acid solution, in which case the reduced cobalamine is precipitated on kieselguhr by means of p-chlorophenol, the kieselguhr adsorbate filtered by suction and washed to remove the hydrocyanic acid and the cobalamine oxidised with atmospheric oxygen; or the reduction is carried out in neutral solution, the precipitated titanium (IV) oxide hydrate filtered off, an inert gas passed through the filtrate in order to remove the hydrocyanic acid, and then air passed through.  In Examples 1 and 3, (5,6-dimethyl-benzimidazole)-cyanocobalamine is converted to (5,6-dimethyl-benzimidazole) - hydroxocobalamine, and in Example 2, (5-hydroxy-benzimidazole)-cyanocobalamine is converted to (5-hydroxy-benzimidazole)-hydroxo-cobalamine using titanium trichloride as the reducing agent in both cases.  Specification 745,504 is referred to.
Patent GB-153611-A (GB)
Title: Improvements in submarine mines
IPC: F42B22/10
Filed: 1917-03-19
Abstract: 153,611. Seng, J. A. March 19, 1917. Addition to 131,927. Drawings to Specification. No Patent granted (Sealing fee not paid). Mines, marine.-Relates to submarine mines provided, as described in the parent Specification, with a spring-pawl for freeing the mooring- cable drum when released by the dissolution of a plug by water admitted through a cock, the pawl locking the cock in the closed position if released prematurely. According to the invention, the locking engagement between the pawl and the cock is made to yield to a forcible opening of the cock, but without freeing the drum, so that the mine sinks to the bottom and remains there out of action.
Patent GB-1188875-A (GB)
Title: Motor Vehicle Cooler Systems.
Inventor: NORTH REGINALD HARRY
IPC: F01P5/06
Filed: 1968-01-25
Abstract: 1,188,875. Engine cooling systems. VAUXHALL MOTORS Ltd. 10 Jan., 1969 [25 Jan., 1968], No. 3981/68. Heading B7H. In a motor vehicle engine cooling system comprising a radiator 14, a fan 21 and a duct 25 for directing air from the radiator to the fan, there is mounted on the wall 26 of the duct a flap 27 which is biased into a position wherein it closes an opening 29 in the wall and is arranged to open when the pressure in the duct 25 exceeds that in the engine compartment by a predetermined amount so that some of the air passing through the radiator 14 by-passes the fan 21. If at high speed the amount of air forced through the radiator 14 exceeds the throughput of the fan 21 the excess air passes through the opening 29 to avoid pressure build-up in the duct 25 and consequential reduction in flow through the radiator. The flap 27 has one edge secured to the duct by rivets 28 and has a V-groove 30 formed therein to act as a pivot. The flap 27 may be made of a resilient plastics material so as to be biased into closing engagement with the opening 29 by its inherent resilience, or biasing may be provided by gravity, a spring or a counterweight.
Patent GB-268924-A (GB)
Title: Improvements relating to burners for oil lamps for cycles and motors, and other purposes
IPC: F23D3/00
Filed: 1926-02-13
Abstract: 268,924. Riley, A. J. Feb. 13, 1926. Wick burners, flat flame.-The wick tube 2 of a burner suitable for use in cycle and other lamps for illuminating purposes is provided at one of its upper edges with a wide imperforate lip or extension 3 which is bent at the top so as to project over the wick tube, a larger and more even flame being thereby obtained. The extension 3 may be integral with or detachable from the wick tube and may be formed with side wings. A sheet-metal attachment may be provided on the burner to direct air on to the flame. The upper edge of the extension 3 may be curved and can be used as a guide for the cutting implement when trimming the wick.
Patent GB-1532571-A (GB)
Title: Optical fibre manufacture
IPC: C03B37/085
Filed: 1976-02-03
Abstract: An optical fibre is drawn down out of a double crucible (12; 16) filled with a core glass (20) melt or a jacket glass (21) melt. A constant ratio of the core diameter to the jacket diameter is maintained during the drawing operation of the fibre by refilling the above mentioned melts with constant amounts (22, 23) of glass per unit of time. A state of equilibrium is established, in which the levels of the melts settle at a specific height. This dispenses with a detector for the melt level. <IMAGE>
Patent GB-749626-A (GB)
Title: Variable resistance device and method of moulding a resistance element for such a device
IPC: H01C10/30
Filed: 1953-02-14
Abstract: 749,626. Variable resistors; moulding resistance elements ; resistance measurements. COLER, M. A., and LOUIS, A. S. Feb. 14, 1953, No. 4188/53. Class 37. [Also in Group V] The resistance track is co-moulded with and upstanding from its base or support and has a curved face tangentially engaged by the sliding contact as shown at 12, 24 in Fig. 2. Moulding process.-This produces a circular base 4, Fig. 1, and moulded-in annular resistance track 2 upstanding from base 4 as a roundedapex triangle, Fig. 2. The moulding base tool 32, Fig. 3, comprises an annular rounded-apex recess or groove 30 and the chosen resistance moulding powder is introduced and just fills the recess 30; collar 34 is lowered to encircle 32 and the mould is charged with the required insulating moulding powder; piston 36 is next inserted and heat and pressure then applied. The insulating moulding powder acts as a deformable piston to compress the resistance material into the recess 30 and the end product, Fig. 2, shows this effect. Fig. 1 also exhibits the addition of current collector ring 18 and contact arm 14. The track 2 is a conductive ceramic, rubber or plastic, e.g. a synthetic resin/acetylene black composition. Producing resistance value or characteristics required.-This may be done as in Fig. 5 by removing part of the track slope at 62 or 64 or adding silver or carbon coatings (e.g. for non- linearity correction). The entire length of the track may be under-cut, e.g. tapering fashion, to produce the desired non-linear characteristic. Also tracks may be rendered non-linear by variation of cross-section or use of several materials of different specific resistivities in series. Measuring linearity.-In Fig. 4 moving contacts 46, 48 sweep test and standard resistor tracks 44, 42 respectively and if 46 encounters a non-linear zone an oscilloscope 54 deviates from zero and a correction may be applied (e.g. as in Fig. 5) until zero is achieved. A 400 c/s. signal generator 40 energizes the resistor tracks 42, 44.
Patent GB-1137521-A (GB)
Title: An electromagnetic ignition device for single-cylinder two-stroke internal combustion engine
IPC: F02P1/08
Filed: 1966-01-31
Abstract: 1,137,521. Ignition systems. F. P. MORENO. Jan. 31, 1966 [Jan. 29, 1965], No. 4258/66. Heading F1B. [Also in Division H2] A condenser 11 is charged from a generator winding 1 and discharged to produce an ignition spark when a pulse from a generator winding 2 unblocks a Trinistor (Registered Trade Mark) or controlled diode 12. The generator motor has two spaced pole pieces (not shown) which co-operate with the windings 1, 2.