baber/WOPTO huggingface dataset:
Patent GB-1523962-A (GB)
Title: Polyisocyanates which contain carbodiimide groups and which are stable on storage
IPC: C07C267/00
Filed: 1976-01-28
Abstract: 1523962 Polyurethanes BAYER AG 28 Jan 1976 [1 Feb 1975] 3267/76 Heading C3R [Also in Division C2] Polyurethanes are obtained from a catalystfree, storage-stable mixture which comprises at least one completely or partially carbodiimized mono- and/or poly-isocyanate and which may contain at least one mono- and or poly-isocyanate which is free from carbodiimide groups obtained by contacting at least one mono- and/or poly-isocyanate with a catalyst which comprises a high molecular weight, insoluble inorganic or organic matrix having ionically bound thereto at least one low molecular weight carbodiimidization catalyst; removing the said insoluble catalyst when the desired degree of carbodiimidization has been reached; and, optionally, adding at least one carbodiimide group-free mono- and/or poly-isocyanate, and a compound containing isocyanate-reactive hydrogen atoms. Examples 27 to 29 illustrate the production of polyurethanes from a linear adipic acid/ethylene glycol polyester, a linear polyether of propylene oxide, an alpha,#-dihydroxy propylene glycol polyether and a polypropylene glycol ether which has been prepared from trimethylol propane and 1,2-propylene glycol.
Patent GB-780299-A (GB)
Title: Improvements relating to dog clutches with synchronising means
IPC: F16D23/06
Filed: 1956-02-02
Abstract: 780,299. Positive clutches. DAIMLERBENZ AKT.-GES. Feb. 2, 1956 [Feb. 2, 1955], No. 3349/56. Class 80 (2). In a synchronized dog clutch wherein an axially slidable clutch member 18 has radial clutch teeth 25 passing through balk-slots 32 in a friction synchronizing and balk-member 27, the said clutch teeth 25 are formed as radial spokes integrally connecting inner and outer rings 23, 24, the former, 23, of which is directly splined on a shaft-member 15. In the double clutch shown, for a countershaft changespeed gear, the slidable clutch member 18 is in two parts 19, 20 held together by a slidable shift-fork 21, and the bevel-faced radial clutch teeth 25, after passing into the narrow ends of the balk-slots 32, on synchronism, engage clutch teeth 39 on members 11, 16. A spring ring 36, carried in a groove in the slidable clutch member 18, and centrally engaging a bevelled groove in the friction barrel 27, initially transmits axial thrust from the clutch member to the barrel to engage the friction surfaces. The friction barrel 27 is in two parts united by axial rivets 29.
Patent GB-607416-A (GB)
Title: Improvements in yarn winding machines
IPC: B65H54/32
Filed: 1946-02-04
Abstract: 607,416. Winding yarn. SCRAGG, Ltd., S. & E., and DOBSON, A. Feb. 4, 1946, No. 3396. [Class 120(ii)] In a yarn winding machine of the kind producing packages with conical ends and comprising a yarn guide N which rests on the package and carried by an arm O pivoted to a lever P pivoted to a reciprocating member, the lever P being angularly adjusted at each motion of the member so that the actual traverse of the yarn guide is reduced as the package builds, the lever P is pivoted to a reciprocating bar H and is angularly adjusted of the bar by a second bar J reciprocating with the first bar but with greater amplitude. The rod H, reciprocated by a cam &c., oscillates a lever K about its pivot K' and through pins &c. M reciprocates the rod J to swing the lever P, pivoted to the rod H at P' through an angle at the end of each stroke. The amount of swing of lever P increases since the thread guide arm O, pivoted to the arm P, by virtue of the guide N, contacting the growing package, moves more nearly into a straight line as viewed in Fig. 4.
Patent GB-495609-A (GB)
Title: Improvements in and relating to electrical remote control and indicating systems
IPC: G08C19/12
Filed: 1938-02-03
Abstract: 495,609. Electric signalling and control systems ; photo-electric apparatus. KASEMANN, E. Feb. 3, 1938, No. 3406. Convention date, Feb. 3, 1937. [Class 40 (i)] [Also in Group XL] In a system of signalling or remote control, the phase of an alternating current is varied manually or automatically at the receiver in correspondence with the phase variation of a similar current at the transmitter, the alternating currents being of irregular form and generated by a record which is scanned photoelectrically, electromagnetically or electromechanically. As shown the pointer 1 at the transmitter is operated by a handle 20 on the stator of a synchronous motor 7 having a rotor driving a transparent disc 9 carrying a, sound record of irregular form. The disc 9 co-operates with the photo-electric apparatus 10, 11 to generate an A.C. of irregular form in the output circuit 3. Similar equipment 9<1>, 10<1>, 11<1>, 20<1> is provided at the receiver and the arrangement, is such that when the A.C.'s are 180‹ out of phase, minimum indications are given by the instruments 15, 15<1> but when by operating the handle 20 the phase relation is disturbed, this condition is indicated. The outof-balance condition is restored by operation of the stator of the receiver motor by the handle 20<1> or automatically by a motor brought into operation by a relay. The receiver pointer 4 is clutched to the receiver stator when required by a clutch 17, 18. The pointers 1, 4 may be replaced by character drums and the system used for teleprinting; the pointer 4 may also be replaced by a selector switch.. The phase variations at the transmitter may be produced by movement of the photoelectric apparatus relatively to the record or by the selective use of a plurality of stationary scanning devices.
Patent GB-931804-A (GB)
Title: Improvements in mechanical belting
Inventor: LORD WILFRED
IPC: F16G1/04
Filed: 1959-01-30
Abstract: 931,804. Belting fabric; laminates; coated fabrics. DUNLOP RUBBER CO. Ltd. Jan. 8, 1960 [Jan. 30, 1959], No. 3406/59. Classes 74 (2) and 140. Belting is woven wide and slit up after impregnation, leno selvedges being formed at what will be the edges of the individual belts to resist fraying. The fabric has two layers of weft 8, Fig. 2, lying above and below straight warp threads 9 and interlaced with warp threads 7 ; at the cutting zones, Fig. 3, the wefts are brought into one plane by the leno-woven threads 10, which are highly tensioned. In an example, the warp threads 7 are plied cotton yarns, the warp threads 9 are cabled polyethylene terephthalate, the warp threads 10 are plied nylon and the weft is cabled cotton. The coating or impregnation may be natural or synthetic rubber, or gutta percha, balata or polyvinyl chloride. After impregnation with a vulcanizable rubber compound or a plasticized polyvinyl chloride paste, a sheet of vulcanizable rubber or polyvinyl chloride, respectively, may be placed on each side of the fabric and the assembly heated in a belting press.
Patent GB-1221528-A (GB)
Title: Control arrangement for a hydraulic pit prop support unit
IPC: E21D23/00
Filed: 1968-01-23
Abstract: 1,221,528. Advancing mine roof supports. BERGWERKSVERBAND G.m.b.H. 23 Jan., 1968 [2 Feb., 1967; 14 Feb., 1967], No. 3457/68. Heading E1P. In a longwall system of mining comprising an advancing mine roof support 3 connected to a conveyor 2 and to an adjacent support by a pivotal arrangement of jacks 6, 7 and 28, 31 respectively, misalignment of the support 3 relative to the conveyor is automatically recified by sensing devices 16 controlling a supply of pressure fluid to either side of the aligning jack 28, 31. The devices 16 control the supply of low pressure air from a source 11 to valves such as 22 having a diaphragm 21 which in turn controls . a supply of hydraulic fluid to one side of the double acting jack 28, 31.
Patent GB-104545-A (GB)
Title: A New or Improved Range Finding Incendiary Bullet or Shell.
Inventor: REVILL GEORGE THOMAS
IPC: F42B12/44
Filed: 1916-03-09
Abstract: 104,545. Revill, G. T. March 9, 1916. Lighting burners by frictional devices. - An incandescent burner b, q, mounted at the rear of a projectile, is ignited by a flint and steel wheel g, which is rotated by a spring h when when set free by spring catches n released by the cartridge wad.
Patent GB-796109-A (GB)
Title: Improvements in or relating to fluorescent screens for use in radiography
Inventor: HOLLIMAN ALBERT RONALD
IPC: A61K49/04
Filed: 1956-02-03
Abstract: 796,109. X-ray apparatus. ILFORD, Ltd. Jan. 9, 1957 [Feb. 3, 1956], No. 3532/56. Class 98(1) An X-ray intensifying screen consists of a sheet support with a layer of fluorescent salt on one face and on the other face a sheet of sponge material having pressuresensitive adhesive on the outside. The adhesive may be covered by a strippable film. The sponge material may consist of polyurethane or polythene and may be stuck to the support which may be of polyvinyl acetate or polethylene, by another similar pressure-sensitive adhesive or otherwise. The screen may be stuck to the wall of a cassette which consists of a flat box without spring-loaded plates or pressure pads.
Patent GB-555769-A (GB)
Title: Improvements in and relating to fusible elements for cartridge fuses
IPC: F42B3/103
Filed: 1942-03-17
Abstract: 555,769. Fusible cut-outs. BESWICK, K. E., BESWICK, D. G. E., and MELBOURN, W. F. March 17, 1942, No. 3546. [Class 38 (i)] A fuse element 1 passes through a baffle 5 at the point 3 at which fusion is to take place, the baffle being of a shape to fit in the cartridge in which the fuse is mounted. The hole 4 through which the fuse passes is eccentric the fuse being bent towards the centre to lie against the opposite faces of the baffle and curved outwardly at 7 towards the straight ends of the fuse. The ends of the fuse may be sheathed in metal 2 flattened or crimped on to it and the sheath may extend round the bends 7 of the element to points near the hole 4. The end parts of the fuse element may be plain or enclosed in insulating beads instead of the metal sheath.
Patent GB-172550-A (GB)
Title: Improvements in or connected with fire-screens of vehicles for the transport of combustible liquid or material
IPC: B60J1/00
Filed: 1921-01-29
Abstract: 172,550. Blanks, F. Jan. 29, 1921. Window frames.-A window of a metal and asbestos screen behind the driver's seat on a vehicle, is mounted in a one-piece metal frame comprising a web b<1> provided with a flange b whereby it may be bolted to the screen layers, and with a flange b<2> provided with a circular bead for the reception of asbestos cord packing e which may extend around the glass at c.
Patent GB-1452342-A (GB)
IPC: C01B15/10
Filed: 1974-01-25
Abstract: 1452342 Polymer coated peroxy salts INTEROX 25 Jan 1974 [29 Jan 1973] 03575/74 Heading C1A [Also in Divisions C5 and D1] Particles of alkali metal persalts are rendered more stable towards water vapour by coating with copolymers of vinylidene chloride and a suitable comonomer. The products are suitable for inclusion in detergent mixtures. The persalts include percarbonates, perpyrophosphates, pertripolyphosphates, persilicates and peroxymonosulphates, while suitable comonomers include acrylate esters, preferably methyl acrylate, acrylonitrile and vinyl chloride, in concentrations ranging from 5 to 50% (by weight) of the copolymer. The persalt is coated with from 0À5 to 5% by weight of copolymer, which may be performed, for example, by using a fluidized bed, rotary disc, drum etc., and by using aqueous emulsions, or solutions in organic solvents. Solvents must be removed at temperatures below the decomposition points of the per-salts. Examples of various coating processes are given and the enhanced stability towards atmospheric water vapour demonstrated. In examples, particles of sodium percarbonate are coated in a hot (65-70‹ C.) fluidized bed with aqueous emulsions of vinylidene chloride/ methyl acrylate copolymers in aqueous emulsion, the vinylidene chloride percentage in the copolymer varying between 87 and 93%.
Patent GB-507053-A (GB)
Title: Improvements in pumps for delivering liquids
IPC: F04B9/14
Filed: 1939-02-03
Abstract: 507,053. Dispensing-pumps. BUDD, H. Feb. 3, 1939, No. 3639. [Class 102 (i)] A dispensing-pump for oil or other liquid comprises a drip-pipe 10 which is secured at its lower end in a cover 7 rockably mounted on a semi-spherical part 5 of the pump casing 2 over a drip-passage 6, the upper end of the drip-pipe sliding in an inverted U-shaped channel 11 provided on the arm 12 carrying the delivery nozzle 14. This upper end may be made substantially oval and formed at .its front with a horizontal slot 15 to prevent drip.
Patent GB-162808-A (GB)
Title: Furnace for the manufacture of iron and steel
IPC: C21B13/14
Filed: 1920-02-06
Abstract: 162,808. Lang, H. Feb. 6, 1920. Extracting.-Iron ore mixed with fuel and flux is charged into iron or steel canisters G which may be of cylindrical form so as to roll gradually through an inclined reducing chamber A into a gas-fired melting-hearth B.
Patent GB-179273-A (GB)
Title: Improvements in or relating to methods of and machines for use in the shaping of boot or shoe upper materials
IPC: A43D21/12
Filed: 1921-01-31
Abstract: 179,273. British United Shoe Machinery Co., Ltd., (United Shoe Machinery Corporation). Jan. 31, 1921. Lasting; uppers, linings, stiffeners, machines for.-This invention relates to means for shaping or conforming upper materials for the end of a shoe and is described particularly in connection with lasting the, heel end of a shoe. In this latter operation the upper materials are engaged by end-embracing wipers along a line located between the exposed face of the sole and the top face of the last with considerable pressure so as to effect a relative displacement of the shoe and the wipers in a direction transverse to the shoe bottom so as to wipe over effectively the edge of the shoe bottom. The relative displacement effected by wedging action against heavy yielding pressure causes strong indrawing pressure by the wipers against the upper materials. Wipers 10, Fig. 1, are held in a moving frame 8 mounted on rocking bars 12., 14 pivoted on cross rods 30 and operated by an arm 16 and cam roller 32 as shown. The wipers engage the heel below the insole, Fig. 3, and as they close and are moved forward they are forced upwards against the pressure of a strong spring 26. In this way the pressure is continued on the top of the last and the upper material is thoroughly flattened down. A spring 50, Fig. 1, on a rod 48 attached to the lever 14 is provided so that the wipers can give way to excessive forward pressure. The wipers 10, Fig. 2, are pivoted together and operated by sliding plates 56 engaging toothed wheels 60, which are on common spindles carrying toothed wheels 62 engaging rack plates 64. These rack plates are connected to adjustable bars 68 provided with springs 74. As the rocking frame 8 is moved forwards the wipers 10 are closed inwards. Excessive closing strain is prevented by the springs 74. The invention is applicable to the forming or shaping of assembled upper materials including the upper leather, the lining and the end stiffener or to the forming of one or more of such materials. Specifications 14831/09 and 118,288 are referred to.
Patent GB-707018-A (GB)
Title: Improvements in silencers for exhaust gases
Inventor: KUHLEMANN STIG OVE CHRISTIAN
IPC: F01N1/08
Filed: 1952-02-12
Abstract: 707,018. Exhaust-silencers. JANSSON, N. E. S. Feb. 12, 1952, No. 3713/52. Class 7(2) A shaft 16 extends centrally through a casing 2 and carries a number of helicallyshaped guide blades 3 which are spaced apart in the longitudinal direction of the casing and arranged in relation to each other such that the slots 22 of adjacent blades are disposed in different angular positions. The blades may be divided into groups, and may be arranged to cause a reversal of the direction of flow of the gases. There may be a cylindrical chamber 7a closed by a cap 15 and provided with holes 13, 14 through which the gases flow into a cooling chamber 23 and then to the silencer outlet 10 secured to the casing 2 by screws or bayonet means. In modifications. (a) the chamber 7a is frusto-conical in form, and (b) there is a perforated cylinder within the casing and closed at its outlet end so that the gases pass into an annular space between the cylinder and the casing, and the spacing and diameters of the blades vary along the length of the casing; alternatively, a coil spring of cylindrical or rectangular cross-section may be used in place of the cylinder.
Patent GB-524718-A (GB)
Title: Improvements in electric protective arrangements
IPC: H02H7/26
Filed: 1939-02-04
Abstract: 524,718. Protective cut-out systems. BRITISH THOMSON-HOUSTON CO., Ltd., and MATHEWS, P. Feb. 4, 1939, No. 3748. [Class 38 (v)] Each one of a number of parallel feeders is protected by a relay 3a energized from the secondary 2a of a current transformer A1, a further secondary la of which is connected in a circulating-current circuit 4 carrying the average of the feeder currents. Any departure of the feeder current from that average produces a current in the relay of that feeder. Where a feeder or feeders have different impedances from the others, the current transformer ratios must be suitably modified. In through-fault conditions such a variation of feeder - impedance from normal may cause the corresponding relay to be energized and, accordingly, in Fig. 2, the transformer cores are cut in half and the winding 1 has more turns round one half (the lower, as shown) than the other, the average corresponding to the number in Fig. 1. The halves are thus equally and oppositely magnetized and the relays are unaffected, but the permeability of the core is so affected that the relay-operating current increases with increase of current in the series windings. To overcome the effects of saturation of the cores by this cross-magnetization, with resulting loss of proportionality between the circulating current and average through-fault current, an additional core threaded by the circulating-current winding may be provided for each transformer, Fig. 3 (not shown). Since the departures from average are of a directional nature, directional overcurrent relays may be employed, Fig. 4 (not shown). These may have voltage windings or, at the generator ends of feeders, may be in the circulating - current circuit and, with the windings 1 may be shorted by back contacts of the breaker of that feeder when the latter is disconnected on fault.
Patent GB-1104409-A (GB)
Title: Improved process for the hydrocracking of hydrocarbon oils
IPC: B01J21/12
Filed: 1967-01-25
Abstract: The process of Specification 1,092,400 for hydrocracking hydrocarbon oils is modified in that the fluorine content of the catalyst is adjusted to, or maintained at, at least 3.5% by weight by adding at least one fluorine compound to the feed.  The fluorine compound may be HF and/or at least one compound which is converted into HF under the reaction conditions, e.g. fluorobenzene or fluorotoluene, and is preferably added continuously in amount 5 to 50 p.p.m.w. calculated on the hydrocarbon oil to be cracked.  The feed preferably has a water content of 50 to 1000 p.p.m.w.
Patent GB-248693-A (GB)
Title: An improved grease cup operated by compressed air
IPC: F16N11/10
Filed: 1926-02-10
Abstract: 248,693. Akt.-Ges. f³r Schmiertechnik Leipzig. May 9, 1926, [Convention date]. Force-feed lubricators.-In a grease cup comprising a plunger o actuated by air compressed above it in a cap f by forcing the cap into a cup a, the plunger o is hollow and is provided with a small hole p providing communication between the air space and the interior of the plunger.
Patent GB-537558-A (GB)
Title: Linear thermionic amplifying systems
IPC: H03C1/06
Filed: 1940-03-01
Abstract: 537,558. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd. March 1, 1940, No. 3871. Convention date, May 13, 1939. [Class 40 (v)] Relates to thermionic amplifiers of modulated waves in which portions of the wave before and after passing through the amplifier are detected and the difference of the waves derived from the two rectifiers is fed back to the amplifier so as to correct irregular amplification and ensure overall linear amplification of the modulation. According to the invention, the difference wave is fed back by a transformer. The feed-back may be into the grid or anode circuit of the amplifier. As shown in Fig. 2, the input of the amplifier T 1  is coupled by a coil L 2  to a rectifier T 2 , and the output is similarly connected by another coil L 3  to another rectifier T 3 . Each rectifier has a load impedance R 2 , C 2 , R 3 , C 3 ; and these are coupled by condensers C 4 , C 4  to primary L 4  of a transformer, the secondary L 5  of which is coupled to a condenser C 5  in the input circuit of the amplifier T 1 . In modifications, amplifiers are inserted between the detectors and the transformer and between the transformer and the main amplifier.
Patent GB-818713-A (GB)
Title: Improvements in machines for moistening and dispensing gummed labels
Inventor: JONES JEREMY SAMUEL
IPC: B65C11/04
Filed: 1956-02-08
Abstract: 818,713. Feeding sheets. JONES & CO. Ltd., S. May 8. 1957 [Feb. 8, 1956]. No 3991/56. Class 100(1) [Also in Group XVII] In a label moistening and dispensing machine having one or more rollers for feeding individual labels from a stack past a moistening element and in which the rollers and liquid reservoir are all easily, removable, the rollers can be removed from their driving means by axial displacement when a cover plate of the machine is removed. As shown, the casing 1 is divided into two compartments by a wall 2, one of these housing, beneath a removable cover 3, an electric motor and worm and spur gears for driving two horizontal shafts which pass through holes in the wall 2 and engage the ends of the shafts of two rollers 22, 24. The motor switch is operated by a press-bar 10. In the second compartment, a stack of labels (not shown) on edge. is supported on a fixed sloping plate 11 provided at the front edge with an arcuate guide 13, and at the side with a wing plate 16 having a screw-threaded hole to receive a screw 17 which holds a side cover plate 18 on the casing. A member 19, adapted to be slipped beneath the plate 11, comprises a liquid reservoir with slotted lugs 20, 21 to receive the shaft of a label moistening roller 22. A second roller 24, which removes the labels from the stack, is removably supported at the free end in a removable bracket 25 attached to the support plate 11, and lies adjacent the lower edge of the plate 11 and spaced from the guide 13. The label stack is urged against the roller 24 by a weight 12 slidable on the plate 11 under the action of a spring 15. A handle 14 on the weight 12 extends through a hole in the casing. A guide plate 26 is supported by the wall 2 and bracket 25 so that it lies at an angle to and in contact with the label stack. In operation, the labels are removed sequentially from the stack by the roller 24, passed around the guide 13 to engage the moistening roller 22, and are fed out of the casing beneath a shield 27.
Patent GB-354692-A (GB)
Title: Improvements relating to the purification of the exhaust gases of internal combustion engines
IPC: F01N3/28
Filed: 1930-02-06
Abstract: 354,692. Dealing with exhaust. SOBANSKI, L., Guetary, Basses Pyrenees, France. Feb. 6, 1930, No. 3998. Convention date, May 7, 1929. Void [Published under Sect. 91 of the Acts]. [Class 7 (ii).] A device for rendering innocuous exhaust gases comprises a group o f perforated baffleplates 5 of one or more metals, having their surfaces coat e d with metallic oxides which will produce a catalytic reaction, arranged as shown in the Figure in a heat-insulated pipe 3 close to the exhaust outlet 1 of the engine so that the heat of the gases is sufficient to maintain the required reaction. Preferably copper and iron sheets, arranged alternately, may be used, these sheets having had their surfaces previously oxidized by any suitable treatment, or the oxidation may be produced by operating the assembled apparatus at a suitable temperature.