baber/WOPTO huggingface dataset:
Patent GB-482351-A (GB)
Title: Improvements in or relating to grinding wheels and other abrasive articles
IPC: B24D3/14
Filed: 1936-09-26
Abstract: In the production of abrasive articles comprising oxidizable abrasive grains bonded with a ceramic bond there is incorporated in the mix before firing a protective agent which will preferentially react with oxidizing gases within the article and prevent detrimental oxidation of the abrasive grains during firing.  The articles are preferably fired in an atmosphere of low oxygen content.  Oxidizable abrasives specified are silicon carbide, boron carbide and diamond.  Protective agents specified are silicon, aluminium, magnesium, boron, boron carbide, boron suboxide, and mixtures thereof.  The amount of protective reagent should not exceed by weight the amount of bond present, and it is stated that usually amounts of 5-15 per cent are sufficient.  Low maturing vitrifiable bonds are preferably employed, e.g. a bond made by mixing ball clay with a powdered material made by granulating a melt comprising borax, boric acid and ground flint with or without hydrated alumina and whiting and finely grinding. Specification 415,392, [Group III], is referred to.  According to the Specification as open to inspection under Sect. 91, the invention may be applied to the production of refractories composed of ceramic bonded oxidizable granules.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1468165-A (GB)
Title: Line data and television transmission
IPC: H04B10/07
Filed: 1973-06-01
Abstract: 1468165 Data transmission system PLESSEY CO Ltd 17 May 1974 [1 June 1973]  26263/73 Heading G1A A data transmission system converts electrical data signals to light signals, transmits the light along on optical transmission line and reconverts it to electrical data signals at the other end of the line. The data signals are preferably analogue television signals. As shown, a LED 1 bonded to a multimode type optical fibre 2, converts the electrical signals to light and reconversion takes place at reversed biased silicon junction device 3.  To linearize the system, an optical and electrical feedback path is provided. Detectors 4, 5 pick up light from LED 1 or from fibre 2 and via an index matching medium and the electrical signal from the detectors is amplified and used as negative feedback for the input data signal. Several data signals may be transmitted using frequency multi-plexing, different colour light and corresponding detector filters, or time division multi-plex.
Patent GB-444032-A (GB)
Title: Improvements in solder for aluminium and a process of making same
IPC: B23K35/28
Filed: 1934-09-13
Abstract: A zinc-tin solder for aluminium is made by melting the zinc with saltpetre and borax, removing the scum, and adding the tin. A mixture of 3 parts by weight of zinc and 2 parts of tin may be stirred and tar then added with exclusion of air.
Patent GB-824641-A (GB)
Title: Improvements in electric lampholders
IPC: F21V17/06
Filed: 1954-09-13
Abstract: 824,641. Lamp holders. YOUNG, S. G. Nov. 3, 1955 [Sept. 13, 1954], No. 26404/54. Class 38 (1). An internally screw-threaded shade or union ring 5 is formed with one or more discontinuities which permit the ring to expand when in position thereby facilitating removal from a lampholder. The discontinuities may comprise bowed portions 6 forming internal recesses 7 and these bowed portions may extend axially of the ring, Fig. 3 (not shown). Alternatively staggered slots 11, Fig. 4, may extend axially from opposite ends of the ring. Fig. 5 shows another embodiment wherein the ring has a Z-shaped split 14, which split may extend for half or more than half the circumference of the ring. The ends of a split ring may be extended to form finger grips 18, Fig. 7. A further embodiment, Fig. 8, has slots 20 extending from the upper end only, the lower end having a skirt 22 without screw-thread. External projections 23 provide a secure fingergrip. The ring may be made of nylon or metal.
Patent GB-334704-A (GB)
Title: Improvements relating to guards for coal-cutting machines
IPC: E21C35/04
Filed: 1929-08-30
Abstract: 334,704. Anderson, A., and Anderson, Boyes, & Co., Ltd. Aug. 30, 1929. Guards.-A coal-cutting machine of the arcwall chain-cutter type is provided with guards pivoted one on each -side of the machine and provided with locking- means. In the form shown in the plan view, guards 2 are attached to members 6 rotatable on vertical pivots 3 located in frames 13 near the cutter head 4. Member 6 is attached to a sleeve surrounding the pivot pin and integral with a ratchet wheel 8. The guard can move in the direction of the chain-cutter 5, but reverse movement is prevented by a disengageable spring - pressed detent 9. Each guard is spring-pressed away from the cutter by a helical torsion spring, shown dotted, one end of which bears against member 6, whilst the other bears against a fixed stop on the frame 13. Hinged to the upper end of each guard is a flap 2<1> which is swung outwardly when in use. In a modification, not shown, wherein the guard is locked against movement in both directions, each guard is secured to a boss rotatable on its pivot pin and having a toothed endface against which is spring-pressed a toothed disc or sleeve axially movable on but not rotatable with the pin. Upon the guard being moved by an applied force, the toothed disc moves alternately into and out of engagement with the toothed boss. According to the Provisional Specification, the wheel 8 is a toothed quadrant integral with the guard.
Patent GB-1537178-A (GB)
Title: Thread parting device
IPC: B65H54/71
Filed: 1977-06-23
Abstract: 1537178 Yarn cutter SCHWEITER ENG WORKS Ltd 23 June 1977 [22 July 1976] 26421/77 Heading D1E A thread cutter comprises thread guides 4, 5 and spring clamping means 9, 10 co-operating in use with the outsides of said guides to clamp thread F whilst it is cut by a blade 11.
Patent GB-281231-A (GB)
Title: Improvements in bead wires and a method for the manufacture thereof
IPC: B60C15/04
Filed: 1927-10-06
Abstract: 281,231. Michelin et Cie. Nov. 26, 1926, [Convention date]. Tyre attachments to rims.-A bead wire is formed by winding a coil of two or more turns to a given diameter, the last turn being stopped at a point B before arrival at the starting point A, then wrapping the same wire in the form of continuous spirals about the coil as a core stopping at the point at which the spirals were started, cutting the wire to leave a length D to be tucked beneath the spirals so that its end is adjacent to the point A. Three wires for the core and nine spiral windings are given as an example.
Patent GB-442456-A (GB)
Title: Improvements in pianoforte actions
IPC: G10C3/16
Filed: 1934-09-15
Abstract: 442,456. Pianoforte actions; moulding. WESSON, D. R., 2, Collinwood Gardens, Ilford, Essex. Sept. 15, 1934, No. 26500. [Class 88 (ii)] [See also Group V] Pianoforte action parts formed by moulding are secured together in the moulding process. In the Figure the damper spoon, flinge, U-shaped pivot pin, check wire, and tape wire, are laid in the lower mould at E, B<2>, P<3>, F and G respectively, phenol and formaldehyde condensation product is inserted at C and D for the formation of the wippen and the jack, and the upper mould applied. In Figs. 1, 4, 5 (not shown), the hammer butt and its flinge are simultaneously formed round a pivot pin.
Patent GB-901171-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: TAYLOR ANTHONY JAMES
IPC: G21C15/04
Filed: 1957-08-22
Abstract: 901,171. Nuclear fuel elements. BABCOCK & WILCOX Ltd. Aug. 20, 1958 [Aug. 22, 1957], No. 26510/57. Class 39 (4). The core of a nuclear reactor includes upright fuel channels containing withdrawable fuel elements which are laterally supported and firmly held against the fuel channel wall by positioning means disposed in groups along the channel and operable either to exert a wedging action on the elements or to permit movement of the elements along the channel. As shown in Fig. 4, each fuel element 11 comprises a uranium bar in a finned Magnox can ; the lower end cap carries three pivotally mounted zirconium lobes 46 which, when contacted by a boss 43 on the upper end cap of the next lower element, splay apart to exert a wedging action against the wall of the channel. The lowest element in a channel rests on a member 30 (Fig. 3) comprising a magnesium tube filled with graphite, boss 34, positioning fins 35, and coolant control protuberance 35a. Member 30 is supported by a steel rod 26 held in position by a spider 27. A retaining member 22 (Fig. 4) at the top of the channel comprises a magnesium sleeve containing steel 49 and graphite 51 and is provided with spacing fins 52 and at its base with lobes 46 similar to those on the fuel elements. The bosses 34, 43, 50 may be gripped by a grab in charging and unloading. The arrangement is suitable for use in a carbon dioxide cooled reactor for ship propulsion.
Patent GB-711813-A (GB)
Title: Improvements in load-transporting appliances for attachment to agricultural tractors and attachment means therefor
IPC: A01D87/00
Filed: 1951-11-13
Abstract: 711,813. Tractor mounted platform hoists. McROBBIE, J., McROBBIE, G. L., and Mc- ROBBIE, K D. [trading as McROBBIE & SONS. J.] Nov. 12, 1952 [Nov. 13. 1951], No. 26520/51. Class 78(3) A load lifting device for attachment to the power operated, draft links of a tractor comprises a pair of interconnected arms 8 which are pivoted to the load carrier at 7, to an A-shaped frame 15 at 13, and to the power operated links 12 at 10; and a link at 17 which is pivoted to the load carrier at 18, and, together with the apex of the frame 15, to a pivot pin 16 which normally retains the upper draft link (not shown). The carrier 6 may be of solid, grid or tined construction.
Patent GB-281830-A (GB)
Title: Improvements in or relating to smokers' ash trays
IPC: A24F19/00
Filed: 1926-10-25
Abstract: 281,830. Salmon, T. G. Oct. 25, 1926. Ash-trays. - Suction-grip devices 2 projecting from a vertical bracket 1 are used to support an ash-tray 5 and a match-box or pyrophoric lighterholder 6. The tray may rest in, or may be hinged to. a ring or dish 3, or be supported on projecting legs, and the box 6 may be attached to or integral with the bracket 1.
Patent GB-1241638-A (GB)
Title: Improved means for controlling guide bars in warp knitting machines
Inventor: FARWELL ROY
IPC: D04B27/26
Filed: 1969-05-27
Abstract: 1,241,638. Knitting machines. CLUTSOMPENN INTERNATIONAL Ltd. 5 May, 1970 [27 May, 1969], No. 26611/69. Heading D1C. A guide bar shogging mechanism for a warp machine comprises a driving unit having a variable profile cam face 9-11 and a follower 7-8 which transmits movement to the bar, and a programme unit PU which preselects the extent of the movement. The follower rod 7 is oscillated up and down so that roller 8 engages faces 9, 11 of slides 14, 15 which are joined by link 10 or overlap while the rod is shogged by one slide the position of the other is being adjusted by the unit PU. The slides are accurately locked in position by interengaging teeth on the slides and blocks 25, 26 released when selection occurs. The overlap stroke of the follower of an alternative arrangement is faster than the underlap stroke. The pattern unit may comprise an additive series of pneumatic or hydraulic cylinders controlled electromagnetically from a peg board or tape. Alternatively a pattern chain may be used.
Patent GB-478837-A (GB)
Title: Improvements in circular knitting machine for knitting loop-plush fabric
IPC: D04B1/02
Filed: 1936-10-01
Abstract: 478,837. Knitting. NEBEL, M. Oct. 1, 1936, No. 26704. Addition to 430,058. [Class 74 (ii)] The machine described in the parent Specification is modified in that the ground thread 7 is guided by an additional thread guide 8, firmly connected to the thread guide bracket 1 below the normal thread guide 3, the additional guide 8 being so formed that the ground thread guided thereby issues approximately into the centre of the path of movement of the upper thread for pendulum motion, the axis of the eye 8a extending approximately parallel to the axes of the needles, and the outlet for the thread lying slightly above the separating point 5a of the sinker so that the ground thread 7 issues from the guide 8 substantially vertically and slightly above and before the point 5a. The eye 8a may be substantially circular in cross section or it may be extended to the form 8b, Fig. 5. A throat 8d is preferably arranged in front of the eye.
Patent GB-211528-A (GB)
Title: An improved process of making ore or fuel briquettes or the like
IPC: C10L5/20
Filed: 1923-07-02
Abstract: 211,528. Smallwood, E. S. July 2, 1923. Briquetting processes. - Finely divided ore material, steel fines &c., is mixed with sulphite process waste liquor and briquetted, the briquettes being preheated at 220‹ F. and then baked at 650‹ F. The briquettes are preferably loosely assembled on trays for insertion in heating chambers and cooled off gradually after treatment. Specifications 23260/01 and 10841/10, [both in Class 50, Fuel, Manufacture of] ; 197,433; and 197,901, [Class 50, Fuel, Manufacture of], are referred to.
Patent GB-352314-A (GB)
Title: Improved method of and means for driving supporting piles, and improvements in piles for use according to such method
IPC: E02D7/26
Filed: 1930-09-10
Abstract: 352,314. Pile - driving. DAHREN, J. A., 14, Sveagatan, Gothenburg, Sweden. Sept. 10, 1930, No. 27015. Convention date, Sept. 11, 1929. [Class 68 (ii).] A hollow pile is driven by applying pressure at the top end and by means of a monkey imparting blows at the lower end. Fig. 1 shows a pile and pile-driving apparatus ; the pile consists of U- section bars 1, Fig. 7, connected by bolts 2, and a foot 3 with a spigot part entering the lower end of the pile; it is pressed down by a screw-jack 6, Fig. 1, and driven by the monkey 5, Fig. 3, striking the foot 3. The jack comprises two screw spindles 6 in a yoke 7 ; they are rotated by worm wheels 9, a worm shaft 8, and a motor. The jack is mounted on a framing comprising a beam 15, the ends of which are extended under the foundations of the building being reinforced. The motor also drives the means for lifting the monkey 5 by means of the wire 20. To enable the pile foot 3 to move under the impact of the monkey, it is connected to the tube 1 by bolts 23 in slots 22. The pile shown in Fig. 3 comprises also a plungerlike member 26 designed to enter the rock strata beneath earth strata. To reinforce the pile, bars 31, set in strips 32, Fig. 7, are placed in the corners of the pile and secured by nuts 34. Specification 335,101, [Class 68 (ii), Subaqueous buildings &c.l, is referred to.
Patent GB-240668-A (GB)
Title: Improvements in holders for brushes, brooms and the like
IPC: B25G3/20
Filed: 1924-11-12
Abstract: 240,668. Smith, A. H. Nov. 12, 1924. Clamping devices and flange attachments for socket fixings.-A handle is attached to a broomhead by a flat, square or curved plate a with inclined socket b and fixing screw d. The lower end of the handle is cut away to half its diameter and co-operates with a semicircular filling-piece c. The socket may have a square or conical hole.
Patent GB-171016-A (GB)
Title: Improvements in or relating to box making machines
IPC: B31B3/72
Filed: 1920-09-23
Abstract: 171,016. Etheridge, J. R., and Wigglesworth, H. Sept. 23, 1920. Feeding webs.-In a boxmaking machine of the type in which a strip of binding material is fed forward in measured lengths by a pair of feed rollers 4, 5 to which an intermittent rotation is imparted by an oscillating toothed sector and ratchet device, and the sector is actuated by means which enable the length of its movement to be varied, the sector 14 is actuated by an oscillating cam plate 21 fulcrummed at 22 and operated bv an eccentric 29 from the shaft 28. The plate 21 is connected to the sector by a pin 18 adjustable along a slotted arm 17 of the sector.
Patent GB-833245-A (GB)
Title: Coaxial bridge for high frequency electrical transmission lines
IPC: H01P1/213
Filed: 1956-09-05
Abstract: 833,245. Coaxial line bridge networks. ALFORD, A. Sept. 5, 1956, No. 27095/56. Class 40 (8). [Also in Group XXXVI] A coaxial bridge network comprises a common outer conductor 15 and four inner conductors connected respectively to input and output terminals A, B and load terminals I, II. A first conductor 17 extends from the input terminal A to the opposite end of the outer conductor 15 where it is shortcircuited by a conductive member 21. Throughout the greater part of its length the conductor 15 is divided into two parts by a pair of diametricallyopposite slots 3. A second conductor 5 extends from the output terminal B between the parts of conductor 17 to an intermediate position 19 approximately one quarter-wavelength from the terminal B where it is joined to one of these parts. At this position third and fourth inner conductors 24, 27 extend from diametrically-opposed points on the parts of conductor 17 to the load terminals I, II. With the input A connected to a source, no power is delivered from the output B when the loads connected to terminals I, II are equal.
Patent GB-1389210-A (GB)
Title: Macroreticular porous resins
IPC: B01J41/04
Filed: 1971-12-20
Abstract: 1389210 Sulphonated macroreticular resins ROHM & HAAS CO 20 Dec 1971 [28 Dec 1970 22 Nov 1971 6 Dec 1971] 27127/74 Divided out of 1389209 Heading C3P The invention comprises sulphonation products of macroreticular resins which are copolymers of a heterocyclic nitrogen monomer and a cross-linking aromatic monomer, especially copolymers of (i) 20-60 wt. per cent of a polyvinyl aromatic hydrocarbon monomer, e.g. di- or tri-vinyl benzene and (ii) 80-40 wt. per cent of a vinyl nitrogen heterocyclic monomer, e.g. vinyl pyridine. Up to half of the latter may be replaced by another monomer, of which many are specified. Examples describe the sulphonation, with 99% H 2 SO 4  or a mixture thereof with ethylene dichloride, of macroreticular copolymers of 4-vinyl pyridine, divinyl benzene and ethyl vinyl benzene.
Patent GB-394995-A (GB)
Title: Manufacture of halogen derivatives of the anthraquinone series
IPC: C07C46/00
Filed: 1931-12-29
Abstract: Halogen dianthraquinonyls, or halogen-diphthaloylnaphthalenes are obtained by nearly or completely halogenating in presence of a diluent and actinic light, the methyl groups of a dihalogen-2 : 2<1>-dimethyl-10-10<1>-dibenzophenonyl (obtainable by condensing a 4 : 4<1>-diphenyl dicarboxylic acid halide with a m-halogen-toluene) or the methyl groups of a 1 : 5-di-methyl-halogen benzoyl)-naphthalene, (obtainable by condensing a 1 : 5-naphthalene dicarboxylic acid halide with a m-halogen-toluene), followed by treatment with a simultaneously saponifying and ring-closing agent.  According to examples (1) the product obtained by condensing 4 : 4<1>-diphenyldicarboxylic-dichloride with 3-chloro-1-methylbenzene is completely halogenated in the methyl groups to give 2 : 2<1>-di-(o -trichloromethyl) 4 : 4<1>-dichloro-1 : 1<1>-dibenzophenone, which is treated with concentrated sulphuric acid to give 7 : 7<1>-dichloro-2 : 2<1>-dianthraquinonyl; (2) the product obtained by condensing 3-chloro-1-methyl-benzene with 1 : 5-naphthalene dicarboxylic dichloride, which is a mixture of three isomeric 1 : 5-di-(methyl-chlorbenzoyl) naphthalenes is chlorinated in the methyl groups as above, and the product treated with concentrated sulphuric acid.  Carboxylic acids which may have been formed by the saponification of the products obtained by chlorination of the two isomers containing methyl groups in p-position to the ketonic group of the above compounds are removed with sodium carbonate producing b : b <1> - dichlorodiphthaloylnaphthalene.
Patent GB-1047627-A (GB)
Title: Improvements in or relating to the reformation of light hydrocarbon feeds
IPC: C01B3/38
Filed: 1963-07-09
Abstract: <PICT:1047627/C4-C5/1> An apparatus for reforming a light hydrocarbon comprises a combustion chamber (not shown) containing one or more catalyst-containing tubes 14 for reforming the hydrocarbon as it traverses the tubes, the tubes leading to one or more chambers 22 containing a bed of oxidation catalyst 24, the oxidation chambers being outside and close to the combustion chamber and having means, e.g. pipes 26, 28, for delivering an oxygen-rich gas to the chambers 22.  Unconverted hydrocarbon leaving the tubes is reformed in the oxidation chambers, of which there may be a separate one for each tube.  The tubes 14 are disposed vertically in the combustion chamber and may depend into the oxidation chamber, Fig. 2, or may terminate at the top of the oxidation chambers, Figs. 3, 4 (not shown).  Oxygen may be delivered to the bottom of the chamber 22, Fig. 2, or to the top, Fig. 3, product gas leaving at the opposite end. The product gas may be quenched either by liquid sprayed into the bottom of the oxidation chamber, Fig. 3, or by being bubbled through a liquid vessel, Fig. 4.  The two catalysts may be the same material, e.g. a Group VIII metal, e.g. nickel.
Patent GB-294027-A (GB)
Title: Improvements in cupola furnaces
IPC: F27B1/02
Filed: 1927-10-13
Abstract: 294,027. Freier Grunder Eisen-und Metallwerke Ges. July 21, 1927, [Convention date]. Addition to 267,008. Discharging. - In a cupola furnace according to the parent Specification, the provision of separate tap-holes in the furnace and separator for discharging residues is rendered unnecessary by arranging the inlet k of the ascending channel r at the lowest point of the furnace base and connecting it to the tap-hole y of the separator by a downwardly sloping passage forming a continuation of the furnace hearth.
Patent GB-1253419-A (GB)
Title: Circular looms
IPC: D03D37/00
Filed: 1969-05-29
Abstract: 1,253,419. Circular dummy shuttle loom. PELTZER & FILS S.A. 29 May, 1969 [30 May, 1968], No. 27212/69. Addition to 1,160,582. Heading D1E. In the loom described in parent Specification for weaving three fabrics disposed in a circle, the gripper which swings radially inwards and outwards of the loom to position weft across the path of the dummy shuttles has its jaws opened and closed by purely mechanical linkage from a cam (instead of by an electromagnet).
Patent GB-802374-A (GB)
Title: Device for introducing gas into liquids
Inventor: CLARKE PETER LESLIE
IPC: C02F3/20
Filed: 1955-09-24
Abstract: 802,374. Aerating sewage or other liquid. DISTILLERS CO., Ltd. Sept. 13, 1956 [Sept. 24, 1955], No. 27281/55. Classes 46 and 111. A device for introducing gas into liquids comprises a chamber 1, made from elastic material such as rubber, having a series of outlets formed as self-sealing perforations. The gas enters through the inlet 4 and the pressure of the gas forces the perforations open to emit the gas into the liquid. The chamber 1 is attached to a support means 7 by a spiral of rigid material 2 fixed to the support at 8, the support being of sufficient weight to cause the device to sink in the liquid. The perforations are formed by piercing the chamber wall with a needle and are arranged mainly in the uppermost wall of the chamber, the perforations preferably being X-, Y- or V-shaped. Two brackets 5 may be provided for lifting purposes and the support 7 may have rollers 6 to assist in lowering the device into a V-shaped trough. Reference has been directed by the Comptroller to Specification 712,170 [Group II].
Patent GB-1248019-A (GB)
Title: Apparatus for optically testing the genuineness of banknotes and other tokens of value
Inventor: MUSTERT R
IPC: G07D7/12
Filed: 1970-06-05
Abstract: 1,248,019. Optical filters. LANDIS & GYR A.G. June 5, 1970 [June 12, 1969], No.27291/70. Heading G2J. [Also in Division G1] A filter wheel, for use in banknote validation apparatus (see Division G1), comprises two semicircular filters 36, 37 and angled mirrors, 41, 42 so that the light is directed alternately via each filter and alternately via a mirror 41 or 42 to light guide 43 or directly downwards towards the banknote 4.