baber/WOPTO huggingface dataset:
Patent GB-410569-A (GB)
Title: Improvements in or connected with gas flash-lighting apparatus
IPC: G08B5/40
Filed: 1933-02-06
Abstract: 410,569. Valves for gas flash-lighting apparatus. GLOVER & CO., Ltd., T., TALBOT, P., and HOYLE, D. G., Gothic Works, Angel Road, Edmonton, London. Feb. 6,1933, No. 3574. [Class 135.] In a gas flashlighting apparatus wherein a double tilting plate, as 8, 9. 10, acts as the valve with the assistance of a rolling ball 7, the tilting valve is made as a closed chamber 5 enclosing the ball 7 and lubricating oil. The ball is arranged to run on a concave track 6. Specification 20368/11, [Class 135], is referred to.
Patent GB-1499679-A (GB)
Title: Switching exchange
IPC: H04Q3/545
Filed: 1975-01-28
Abstract: 1499679 Automatic exchange systems COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 28 Jan 1975 [29 Jan 1974] 3582/75 Heading H4K An exchange having a two stage subscriber switching network and a two stage selector group switching network is provided with a duplicated modular control system which can be reconfigured if a fault occurs in one control module. Switching network and path finding (Fig. 3 and Figs. 1, 2, 4 and 5, not shown).-The subscriber stage comprises up to 10 groups B1-B10 each comprising a two stage relay network connecting 400 subscribers with 100 outlets, 20 of which give access to local junctors JL and 8 sets of 10 which give access to the eight selector groups BS1-BS8, the trunking of each of the groups B1-B10 and BS1-BS8 being identical (Fig. 1, not shown). The outlets of the selector groups are multipled as shown to the 200 local junctors and 600 trunk junctors JR. Path finding uses a "Map in Network" technique of order wires comprising diodes in series with crosspoint relay contacts (Fig. 2, not shown). Figs. 4 and 5 (not shown), illustrate the path set up circuitry for a connection between a calling subscriber and a local junctor and for a connection between a called subscriber and a local junctor respectively, the latter involving the use of a thyristor of which the anode is marked by the control unit to cause a selected path to be switched through. The switching stages are formed on printed circuit cards and the path selector logic employs C/MOS integrated circuits. Control system (Fig. 6).-Each control system comprises a clock H 1 (H2), a central control MC1 (MC2) exercising overall control of the exchange and performing control of the path selection and path set up operations, a translator TR1 (TR2), a junctor control unit ME1 (ME2) which performs all the functions associated with half the junctors including the reception and storage of dialled digits and the supply to a charge analysis unit TA of metering information, and an operator position control MO 1  (MO 2 ) which normally controls the connection of half the junctors to operator positions. A fault recorder FF, a printer IM and a console PE are also provided. Logical operations concerned with CL1, path selection &c. are performed by logic circuitry LA, LS positioned on the switching racks. Normally the two systems share the work load of the exchange with the two central controls exchanging information via a buffer EC. In the event of a fault in a translator and/or a central control and/or an operator position control the control system is reconfigured so that the whole exchange remains in operation. However in the case of a malfunction in a junctor control unit ME1 (ME2), the 400 junctors which that unit controls are taken out of service and the exchange reconfigured to operate with only halfits junctors.
Patent GB-431585-A (GB)
Title: Improvements in crank shaft balance weights
IPC: F16F15/28
Filed: 1934-02-03
Abstract: 431,585. Crank shafts. BAILEY, R. W. H., 36, Ashbourne Road, Derby. Feb. 3, 1934, No. 3605. [Class 80 (ii)] A balance weight c, d engages at a chamfered interface b<2> an extension b of a crank web a<1> the upper side of the weight and the interface being concave towards the pin a<2>. Relative peripheral displacement is prevented by a radial key. The weight c, d is secured in an axial direction by two bolts g of which the heads g<1> are housed in a recess g<2> and the nuts f<1> in inclined slots which prevent rotation. The bolts are tightened by means of hexagon heads g3 which are afterwards sawn off.
Patent GB-779680-A (GB)
Title: Process and machine for slitting tyres
IPC: B29D30/68
Filed: 1955-02-08
Abstract: 779,680. Slitting tyre treads. MESERVE, F. C., and SMITH, M. F. Feb. 8, 1955, No. 3638/55. Class 31 (1). [Also in Group XXXIV] A machine for slitting tyre treads comprises a rotary drum 24, 25 having a helical or worm thread which is adapted to rotate a tyre 30, the drum carrying a helical slitting knife 26 which is adapted to form parallel closely spaced inclined transverse slits across the tyre tread. The knife is secured between the sections 24, 25 of the drum and consists of a plurality of con - nected segmental knives of progressively increasing depth. The drum, which may be of integral construction, is rotated from a motor 11. The wheel or other rotary support carrying the tyre is mounted on a spindle which is passed through one of a plurality of perforations in a bracket 35, Fig. 3, carried by arms 33 pivoted at 34 on a frame 32 which is supported by arms 31, and the tyre is pressed into engagement with the teeth on the drum by operation of a hand wheel 39. The drum and knife carried thereby dip into a tank containing liquid lubricant 42 e.g. triethanolamine. A roller 40 mounted on a fixed bracket 41 engages the side wall of the tyre to resist the transverse thrust of the slitting knife. In a modification, Fig. 6 (not shown), in which the tyre is adapted to be slit while on the wheel of a vehicle, the wheel and tyre are supported by a chain passing over sprocket wheels one of which is adapted to be raised or lowered to accommodate wheels of different diameter. In this case, the drum and slitting knife are carried by an angularly adjustable frame.
Patent GB-823507-A (GB)
Title: Improvements in or relating to the purification of tetrachlorophthalic acid and its anhydride
IPC: C07C51/573
Filed: 1958-02-04
Abstract: The invention comprises a process for the purification of impure tetrachlorophthalic acid or its anhydride by dissolving the same in a hot aqueous solution of a water-miscible ether, and crystallizing the tetrachloro phthalic acid therefrom, which may then be converted to tetrachlorophthalic anhydride if desired by heating above 100 DEG  C. Solvents specified are 1 : 4 dioxan, 1 : 3 dioxan, tetrahydrofuran, glycol formal, glycol acetal, methylal, and ethylal.  The crystallization of the tetrachlorophthalic acid is preferably carried out in aqueous solutions containing from 2 to 20% of the ether and the dissolution of the acid or anhydride is preferably carried out at or near the boiling point of the solution.  It is preferable to filter the solution at a temperature near the boiling point to remove any insoluble impurities which may be present and the volume of the solution is preferably from 10 to 20% in excess of the volume required to dissolve the tetrachlorophthalic acid at the boiling point of the crystallization solution.  Mixtures of water with the ethers may be used, and activated carbon or fuller's earth may be added to the hot solution before the initial hot filtration, as well as acids, e.g. hydrochloric acid, preferably not more than 2N in the final solution.  The solvents may be recovered by continuous or batch distillation of the mother liquor, if desired after neutralization. In most cases the solvents form an azeotropic mixture with water, and can be recycled for the crystallization process.  Examples are given of the purification of crude tetrachlorophthalic acid and its anhydride, the crude compounds sometimes containing ferric chloride.
Patent GB-607485-A (GB)
Title: Improvements in sealing devices for bottles, jars and the like containers
IPC: B65D45/32
Filed: 1946-02-06
Abstract: 607,485. Bottle closures. ABERG, R. C. Feb. 6, 1946, No. 3684. [Class 125(iii)] A sealing device for bottles and like containers consists of an inner cap shaped portion 1 provided with a moulding 2 which is pressed home into an annular groove 5 in the neck of the container when the tight fitting cylindrical outer portion 3 is pressed over the cap 1. Both portions are made of pasteboard or similar non- metallic material, the outer ring 3 being preferably made of pasteboard tubing or of paper wound in a number of layers. The ring 3 may also be provided with a dished upper edge 6 to locate its position correctly.
Patent GB-201859-A (GB)
Title: Means or couplings for connecting aerials to radio apparatus or for connecting together other electrical conductors
IPC: H04B1/18
Filed: 1923-02-07
Abstract: 201,859. Greene, A. C. Feb. 7, 1923. Aerials.-Comprises means for leading in from an aerial wire through a door or window without boring holes. Flat insulating strips a, b, Fig. 4, of fibre or the like are bent at right-angles at z, a flat conducting strip c being held between them and brought out at the ends c<11>, c<111>, where it is clamped by terminal posts f, g. The strip c may be further insulated with rubber, wax, shellac or the like and the strips a, b, may be held together by eyelets or cemented at their edges so as to be watertight. The coupling is secured to a window frame k by nails or screws k<1>, or to a door frame or door or window. In a modification, Fig. 5, the conductor c is brought out through a slot s so as to be exposed on both the upper and the lower surface of the coupling. Instead of the strips a, b, a flat fibre tube may be employed, or the insulation may be moulded round the conductor c, or as in Fig. 10 a single piece of fibre may be wrapped round the conductor, or the strip a may be folded so as to overlap the strip b as in Fig. 11. The coupling may be tapered, being broad at z. Fig. 4, and narrow at its ends, or the strips a, b, may be formed in the middle with lugs for attachment purposes. The device may be strengthened with steel or other reinforcement strips, which may be embedded in the insulation as at L, l, Fig. 17. Instead of the flat strip c, several fine straight or plaited wires may be employed. Reference has been directed by the Comptroller to Specification 210,257.
Patent GB-524616-A (GB)
Title: Improvements relating to dry gas meters
IPC: G01F15/00
Filed: 1939-02-04
Abstract: 524,616. Gas meters. STEED, R. V. Feb. 4, 1939, No. 3721. [Class 54] In a dry gas meter lubricant is supplied to the working parts from outside the meter through a pipe 17 normally closed by a screw 18, and having its outlet arranged so as to be at all times above a reservoir formed by upturned flanges 19 on the tangent crank 12. The tops of the connecting rods 10, 11 connecting the flag arms 8, 9 to the crank 12 are also provided with upturned flanges 20, 21 to four reservoirs passing in turn beneath the outlet from the pipe 17. From the connecting rods 10, 11 the oil may pass through holes 22, 23 to the crank 12 and from the crank 12 oil may pass through a hole 28 to a reservoir formed by flanges 26 on a casing 24 surrounding the worm-and-index drive 13. Oil passes through a hole 29 in the casing 24 to the drive 13 and down one side of the casing to a reservoir formed at the top of a semi-circular casing 25 having pipes 30, 31 formed with feed aperture 32 supplying the slide-valves 4, 5. A wick feed may supply lubricant from this reservoir to the crank pin bearing of the valve-actuating crank 14. Specification 468,519 is referred to.
Patent GB-812223-A (GB)
Title: Improvements in or relating to compressed fluid braking apparatus
IPC: B60T15/04
Filed: 1957-02-04
Abstract: 812,223. Fluid-pressure brakes. WESTING- HOUSE AIR BRAKE CO. Feb. 4, 1957 [Feb. 3, 1956; Feb. 27, 1956], No. 3727/57. Class 103 (1). In a compressed fluid braking apparatus suitable for railway locomotives of the type having an equalizing reservoir 6, adapted in dependence of the presence of compressed fluid therein to vary automatically and correspondingly the pressure of compressed fluid in the brake pipe 11, the apparatus is so arranged that, at, or substantially simultaneously with the completion of a reduction of brake pipe pressure to cause a brake application, the volume of compressed fluid then remaining in the equalizing reservoir 6 is allowed to expand for a limited period and at a controlled rate commensurate with the rate at which equalizing reservoir pressure tends to rise due to absorption of heat from the ambient atmosphere whereby to maintain the equalizing reservoir pressure substantially constant at the reduced value prevailing at the completion of the brake pipe pressure reduction. The equalizing reservoir is connected to chamber 4 of a displacement device 1 so that if the reservoir pressure should " build back " to a degree such as to exceed the brake pipe pressure in chamber 7 below the diaphragm 2 in device 1, which may be about 0.3 to 0.5 p.s.i. depending on the value of spring 8, the diaphragm 2 will be deflected downwardly, thus reducing the pressure in the equalizing reservoir. The maximum deflection of the diaphragm 2 is sufficient to absorb as much of the potential build back of pressure in the reservoir as is necessary to prevent a pressure differential being established across the diaphragm 23 which will be such as to cause the unseating of the maintaining valve 38. In an alternative embodiment described the equalizing reservoir is arranged to be connected through a choke passage to another reservoir of smaller volume whereby its pressure may be prevented from rising more than a certain amount, the second reservoir being at other times evacuated to atmosphere. Specifications 794,582, [Group III], and 802,465 are referred to.
Patent GB-660896-A (GB)
Title: Improvements relating to electric furnaces
Inventor: HAMPTON WILLIAM
IPC: H05B3/66
Filed: 1949-02-11
Abstract: 660,896. Electric resistance furnaces. G.W.B. ELECTRIC FURNACES, Ltd. Jan. 16, 1950 [Feb. 11, 1949], No. 3868/49. Class 39(iii) Heating resistances 3 are supported in a furnace by arms 2 of a loop 1 retained in a slotted hole 4 in a lining brick 5 of the furnace roof by a pin 8 which passes through an inclined hole 7 in the same face of the brick to traverse the loop 1 .and is then rotated so that a clip or hook 9 at the bent outer end of the pin engages the protruding part of the loop 1 and rests on the heating element 3. The ends of the hairpin loop 1 are bent into loops 2 to receive the resistance strip 3. The hook 9 of the pin 8 may slightly compress the limbs of the loop 2, which may, however, comprise a hook with one limb only extending from the brick face. The hole 7 extends beyond the end of the pin 8 to allow raising the pin on disengaging it from the loop 2.
Patent GB-211506-A (GB)
Title: Improvements in reflex ovens
IPC: F23D14/62
Filed: 1924-02-16
Abstract: 211,506. Krupp Akt.-Ges., F. Feb. 19, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Gaseous-fuel furnaces.-A coke or other oven A is heated on opposite sides by fiameless combustion beds B of refractory material supplied with a mixture of gas and air or oxygen through channels b' from distributing-chambers C. The mixture is produced in tubes D<1> provided with baffles d<3> and supplied with gas and heated air from pipes E, F respectively. Each tube D<1> communicates with a distributing-chamber C through a pipe D at the lower end of which is a non-return valve K held open by a spring to maintain a uniform pressure of the gas mixture and to prevent back-firing. The air is beated in pipes f<2> exposed to gases leaving the furnace by the pipe H. It is stated that at least one of the constituents of the gas mixture may be heated to such a temperature as to cause the gas mixture in the tube D to possess a, temperature much higher than the flash point of the mixture.
Patent GB-567296-A (GB)
Title: Improvements in the manufacture of artificial fibrous sheet material
IPC: D04H1/64
Filed: 1944-02-22
Abstract: 567,296. Fibrous sheet material. PICKLES, R., and PICKLES, J. Feb. 22, 1944, No. 4072/43. [Class 140] In a process of making an artificial fibrous material, wherein a mass of vegetable textile fibres too short for spinning is impregnated with a binding agent in aqueous dispersion, compressed into sheet or board form and dried, the material is formed by carding into a dry web or fleece a mass of the fibres such that at least 90 per cent thereof are not longer than 2 mm. and the remainder are not longer than 10 mm., e.g. the fly and lint which are collected in textile spinning mills, or the waste cotton flocks which are removed from cloth-raising machines, impregnating the carded mass with the binding agent, compressing the mass into sheet or board form and simultaneously expressing excess impregnant, and drying the product, the proportions of fibre and binding agent used being such as to yield 50-80 lbs. fibre to 50-20 lbs. of the dry weight of the binder in the finished material. The binder in aqueous dispersion may be rubber latex, nitrocellulose, cellulose acetate, phenol-formaldehyde, urea-formaldehyde, animal or vegetable caseins, or animal or vegetable oils of the kind which are rendered siccative by addition of such metallic salts as acetate or sulphate of aluminium. A mass of cotton-raising flocks prepared for impregnation by passage through a carding engine may be discharged upon a travelling lattice conveyer by which the fleece is fed continuously towards an impregnating point. The impregnation with binding agent may be effected by spraying on the single thickness of fleece on the conveyer, or on one or more fleeces piled haphazardly in a hopper or other receptacle ; and after impregnation, the mass is passed continuously between rollers so as to press it into a sheet or board of the desired thickness which is conveyed through a drying chamber or between heated jackets to evaporate the water content. On emergence, the dried material may be rolled or cut into lengths. When rubber latex is used as binding agent, the compressing operation is performed in the known way under heat to vulcanize the rubber ; with the other binding agents referred to a plasticiser is added to the dispersion ; and in either case pigments of any colour may be added. Specifications 424,098, 440,396 and 536,012 are referred to.
Patent GB-717526-A (GB)
Title: Improvements in door fastening mechanisms for horizontal coke ovens or the like
IPC: C10B25/14
Filed: 1952-02-15
Abstract: 717,526. Coke oven doors. KOPPERS GES, H. Feb. 15, 1952 [Feb. 16, 1951], No. 4117/52. Addition to 689,056. Class 55 (1) The latches 12 of the coke oven door closure of the parent Specification are each relieved of spring pressure, when handling of the door is required, by a member 17 which is moved axially of the latch bolt by interconnection with operating members 20, Fig. 1, or 34, Fig. 2, which are mounted on the door and on the door handling machine respectively, and are moved in a direction transverse to the axis of the latch bolts. In Fig. 1, the interconnection is by bell cranks 15 pivoted at 14 to the door and connected by pins 18, 22 to the members 17, 20, the latter being threaded upon a right- and left-handed screwed rod 23 rotated, through bevel gearing 25, by a crank 26. The rod 23 is journaled in a bearing 24 secured to the door. The door is lifted by arms 28 connected by a link 50 and pivoted at 31 to the door handling machine 29. In Fig. 2. the members 17 are moved by levers 44 pivoted at 45 to the door and carrying rollers 43 which are engaged by cam surfaces 41 of levers .40. The latter are pivoted at 42 to the door and carry rollers 39 which engage cam surfaces 38 of the door-lifting arms 28. These arms are pivoted at 31 to the door-machine 29, and are connected by an adjustable link 32, 48 so that they move oppositely when actuated by the member 34 which is actuated by a gearing 36, hand or power-driven.
Patent GB-764153-A (GB)
Title: Automatic abrasive liquid distributing device for optical lens polishing machines
IPC: B24B57/00
Filed: 1955-02-11
Abstract: 764,153. Polishing lenses. ETABLISSEMENTS P. ANGENIEUX. Feb. 11, 1955 [July 28, 1954], No. 4123/55. Class,60. Lenses 2 secured to a support 3 are polished by a tool 1 held by a rod 4 having a spherical end portion 5 engaging a cavity 6 in the tool. A reservoir 7 contains abrasive, e.g. cerium oxide, in suspension in a liquid, e.g. water, which is circulated by a centrifugal pump 9, driven by motor 10, around circuit 11-15 which includes valves 17, 18 one for each polishing station to be supplied with abrasive liquid. Each valve comprises a chamber 19 connected to pipe 13 and having formed in its bottom wall a port 20 controlled by a needle valve 21, the abrasive liquid leaving through the port being received in a funnel-shaped member 22 on top of the rod 4, a duct 23 co-axial with the rod directing the liquid into the space between the tool and work to wet by capillarily and centrifugal action the surface of the polishing tool 1. The valve is actuated by an electromagnet 24 controlled by a switch 31 operated by a cam disc 32 rotated by a variable speed motor. In a modification, a lens 37 is polished by a tool 38, the abrasive liquid being conducted from the funnel 22 through a pipe 39 on to the surface of the polishing tool.
Patent GB-1360001-A (GB)
Title: Pharmaceutical compositions comprising substituted anilides
IPC: A23K1/16
Filed: 1971-06-16
Abstract: 1360001 Animal husbandry SCHERICO Ltd 16 June 1971 [16 March 1970] 4154/70 Heading A1M [Also in Divisions A5 and C2] Pregnant animals are treated with an androgenic active substituted anilide shortly before and/or during the period of Letal genital formation whereby litters produced consist solely of females and hermaphrodites, the said substituted anilide being of the general formula: or a pharmaceutically acceptable salt thereof wherein R represents a C 1-5  alkyl group of which carbon atoms at least one in secondary or tertiary; R' represents hydrogen or a C 1-6  alkyl group; B represents sulphur or oxygen; Y represents hydrogen, C 1-6  alkyl, halogen, nitro, carboxy (which may be esterified with a C 1-6  alkanol), hydroxy, C 1-6  alkoxy, C 1-6  alkanoyloxy, polyfluoro-C 1-6  alkoxy, polyfluoro-C 1-6  alkyl, trifluoromethylthio, trifluoromethylsulphoxy, trifluoromethylsulphonyl or C 1-6  alkanoyl; X represents iodine, trifluoromethyl, chlorine, bromine or iodine except a compound wherein B represents oxygen, R and R' are as defined above, and of X and Y, Y represents bromine, iodine, nitro, carboxy (which may be esterified with a C 1-6  alkanol), hydroxy, C 1-6  alkoxy, C 1-6  alkanoyl, C 1-6  alkanoyloxy, polyfluoro-C 1-6  alkoxy, trifluoromethylthio, trifluoromethylsulphoxy trifluoromethylsulphonyl or polyfluoro-C 1-6 -alkyl other than trifluoromethyl and X represents nitro, iodine, trifluoromethyl or bromine (X and Y not being both bromine); or Y represents trifluoromethyl and X represents iodine, bromine, or when R contains 6-8 carbon atoms of which at least two are secondary or tertiary ones, then X may also represent nitro. The substituted anilide may be administered in the form of a composition suitable for oral or parenteral administration and may be incorporated in an animal feedstock or feed-supplement.