baber/WOPTO huggingface dataset:
Patent GB-570785-A (GB)
Title: Improvements in or relating to typewriter indicators
IPC: B41J5/12
Filed: 1944-02-10
Abstract: 570,785. Typewriters &c. MESS CHAERT, F. W. Feb. 10. 1944. No. 2493. [Class 100 (iv)] Keys. A device attachable to a key of a typewriter to indicate by touch the position of such key comprises a vertically-disposed arm 7 supported by two arms 6 secured to the key stem 8, the arm 7 carrying an indicator 2 positioned adjacent to and relatively projected from the top face 3 of the key. In one form, the arms 6 are clamped to the stem 8 by a screw 9 which may pass through the stem. As an alternative, the arms 6 grip the stem without the need for a screw 9.
Patent GB-480824-A (GB)
Title: Improvements in or relating to boilers of the locomotive type
IPC: F22B13/12
Filed: 1937-01-28
Abstract: 480,824. Locomotive boilers. SUPERHEATER CO., Ltd. (Superheater Co.) Jan. 28, 1937, No. 2496. [Class 123 (ii)] In a locomotive boiler having a watertube firebox A, and a steam and water drum C, extending over the firebox and the barrel B, water is forced by.a pump 47 from the barrel through the firebox tubes in excess of the quantity evaporated therein, and the excess water is returned from the drum through apertures in the bottom of the drum and the top of the barrel. Tubes 41 conduct steam from the barrel to the steam space of the drum. Horizontal bifurcated tubes 9 arranged along the side walls and top of the firebox are connected to front and rear headers 3, 1, and the relatively long single tube portions 7 at the forward end of the wall tubes serves to support the horizontal loops of superheater elements D. The elements are connected to upper and lower steam drums 21, 23. Feedwater is supplied to the barrel by a pump 51. through pipes 57, 58 and a three-way valve 61 which, when the circulation pump 47 fails, is turned to allow feedwater to flow directly through a pipe 59 into the front header 3 of the firebox section.
Patent GB-588636-A (GB)
Title: Improvements in change speed gearing applicable to electricity meters
IPC: F16H3/00
Filed: 1945-02-01
Abstract: 588,636. Epicyclic change-speed gearing. FERRANTI, Ltd., and JACKSON, H. Feb. 1, 1945, No. 2504. [Class 80 (ii)] [Also in Group XXXVI] An epicyclic transmission. gearing applicable to electricity meters and providing bi-directional rotation of a driven member from bi-directional rotation of a driving member with a different speed ratio in each direction of rotation, consists of a differential gear having one of its members driven bi-directionally and another uni-directionally from the driving member, the drive issuing from the remaining member. As shown in a form suitable for coupling the driving element of a direct current motor meter of the ampere-hour type to its indicating mechanism, the motor-driven worm b drives, through reduction gearing, interengaging pinions e, f of equal size meshing respectively with two equal gears g, h connected through ratchet clutches g<2>, h<2>, both driving in the same direction, to a shaft i which drives one sun wheel of the differential through gears j, k. The differential cage carrying interengaging planets l is driven from the pinions f through gears q, m, and the second sun wheel drives the indicating pointer p through gears n, o. The gearing ratios are chosen so that the rotation of the pointer p is bi-directional, obtaining mainly from the bi-directional rotation of the pinion m with additive or subtractive coupling, according to the direction of rotation, through the differential from the uni-directional gear k.
Patent GB-1159278-A (GB)
Title: One-Piece Calendar Pad Stand
IPC: B42D5/04
Filed: 1967-01-17
Abstract: 1,159,278. Loose-leaf calendar. BROWN BROS. Ltd. 17 Jan., 1967 [7 May, 1966], No. 2517/67. Heading B6E. A single piece calendar pad stand has a main body portion 10 dimensioned to support sideby-side sheets of the calendar or like pad and at least two arch members 12, 14 integrally formed with said main portion and connected by a hinged piece 20, 22, the arch members being bent into arch shape and fastened into sockets 26 formed in the body. The central part of each arch member is reduced in thickness so as to give a constant radius to the arch. The free end of the arch members 12, 14 are provided with sockets 28 which engage a ridge 30 within the sockets 26.
Patent GB-328625-A (GB)
Title: Improvements in or relating to motor vehicles
IPC: B60K17/36
Filed: 1929-01-24
Abstract: 328,625. Guy, S. S. Jan. 24, 1929. Transmission gear between separate axles.- Two or more rear axles are driven from a transverse shaft d through longitudinal shafts b extending rearwardly along both sides of the vehicle frame c to each driven wheel a. The wheels may be driven through worm or bevel gear and lateral shafts f or worms on the longitudinal shafts may drive worm wheels mounted directly on the road wheels. The shafts b are articulated as shown, to allow for frame distortion.
Patent GB-963071-A (GB)
Title: Improvements relating to the production of tufted fabrics
Inventor: WIGNALL NORMAN
IPC: D05C15/00
Filed: 1962-01-24
Abstract: 963,071. Tufting machines. ELLISON TUFTING MACHINERY Ltd. Jan.16, 1963 [Jan. 24, 1962], No. 2579/62. Heading D1G. In producing tufted pile fabric, successive rows of pile loops are formed alternately or simultaneously by projecting threads through a base fabric from opposite sides by means of rows of hollow needles disposed one on each side of the base fabric. As shown, tufts are inserted into a base fabric 20 by a row of hollow needles 29 situated thereabove,and by a row of hollow needles 31 situated thereunder. Needles 29 are carried by a bar 30 reciprocated by an arm 34 on a shaft 35, the latter being oscillated by an arm 37 thereon via an eccentric 38 on a rotary shaft 39. Needles 31 are carried by a bar 32 reciprocated in similar manner via an eccentric 40 on shaft 39. Yarn is fed to needles 29 by variable speed rollers 45, 46 for producing varying lengths of tufts. Yarn is similarly fed to needles 31 by rollers 41, 42. Shaft 39 is driven by a motor 50 via a belt 49. Roller 46 is driven by shaft 39 via belts 54, 55 on a change-speed gear 56. Roller 42 is driven by shaft 39 via belts 51, 52 and a change-speedgear 53.
Patent GB-864640-A (GB)
Title: Recovery of rare refractory metals
IPC: C25C7/00
Filed: 1945-02-01
Abstract: 864,640. Fused-electrotyte apparatus. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Feb. 1, 1945 [Feb. 7, 1944], No. 2612/45. Class 41. A process for recovering a rare refractory metal, e.g. uranium or thorium, by electrodeposition on a cathode 11, in an anode cell 10, comprises introducing a salt of the metal into the electrolyte at a point between the cell wall and an electrically conducting shield 14 electrically connected to the cell 10 and dipping into the electrolyte between the cell wall and the cathode 11 so that the point has substantially no electrical field and volatile impurities in the salt are vaporized before they reach the cathode 11. A graphite ring 14 is supported by conducting brackets 15 from the upper edge of the cell 10 which is of carbon and halides of the refractory metal, e.g. uranium halides, are continuously delivered into the annular space behind the ring 14 from two pipes 17 leading from a housing 16 connected to a feeding device, e.g. of the kind described in Specification 864,641. The cell 10 and ring 14 are at the same electrical potential, and impurities, e.g. boron oxide, are converted to halides and vaporized in the annular space before they can move to the cathode 11 and contaminate the uranium deposited there. The electrolyte 12, which is maintained at about 950‹ C., may be a mixture of calcium chloride and sodium chloride.
Patent GB-798411-A (GB)
Title: Preparation of 1,4-dihalo-2-butines
IPC: C07C17/16
Filed: 1957-01-24
Abstract: 1,4-Dihalo-2-butines are prepared by reacting a 1,4-butine diol with hydrogen chloride or bromide, in the vapour phase in the presence of a highly porous material as catalyst, such as gamma alumina, activated silica gel, charcoal or diatomaceous earth, at temperatures from 120 DEG  to 300 DEG  C., for 2-12 seconds, and then separating the 1,4-dihalo-2-butine so formed.  The diol may be vaporized by heating to a temperature below its decomposition point under atmospheric pressure and then passing an inert gas such as nitrogen, through the mixture to carry the diol vapours to the reaction chamber.  A fixed or fluidized reaction bed may be used to contact the catalyst with the reactants, and the contact time is preferably from 5-8 seconds at 150-160 DEG  C.  An excess of hydrogen halide preferably 2.5 to 3 mols. per mol. of diol may be used.  Examples are given of the preparation of 1,4-dichloro-2-butine.  Alpha chlorocrotonaldehyde is also formed as a by-product in Example 1.
Patent GB-415949-A (GB)
Title: Process for sensitising photographic silver halide emulsions
IPC: G03C1/18
Filed: 1934-01-26
Abstract: Silver halide emulsions are sensitized especially to the yellow and green by the use of symmetrical naphthoxocarbocyanine dyes substituted at the central carbon atom of the trimethine chain and derived from 2-methyl-a -or -b -naphthoxazole.  These dyes are prepared by condensing a quaternary ammonium salt of a 2-methyl-a - or b -naphthoxazole with a trialkyl ester of an orthocarboxylic acid containing more than one carbon atom or according to the process described in Specification 412,309.  In examples (1) 1 : 1<1>-dimethyl-mo-ethyl-b -naphthoxocarbocyanine bromide is prepared by heating 2-methyl-b -naphthoxazole dimethyl sulphate with triethyl orthopropionate in pyridine and precipitating with potassium bromide; (2) 1 : 1<1>-dimethyl-mo-ethyl-a -naphthoxocarbocyanine bromide is prepared as in example 1 starting with 2-methyl-a -naphthoxazole; (3) 1 : 1<1>-dimethyl-mo-methyl-a -naphthoxocarbocyanide bromide is prepared by heating 2-methyl-a -naphthoxazole dimethyl sulphate with triethyl orthoacetate in pyridine and working up as in example 1; (4) by using triethyl orthothiophenate in place of triethyl orthoacetate as in example 3 the dye 1 : 1<1> dimethyl-mo-thienyl-a -naphthoxocarbocyanine bromide is formed; (5) by using triethyl orthobenzoate in place of triethyl orthoacetate as in example 3 the dye 1 : 1<1>-dimethyl-mo-phenyl-a -naphthoxocarbocyanine bromide is formed; and (6) 1 : 1<1>-dimethyl-mo-ethyl-b -naphthoxocarbocyanine bromide is prepared by heating 2-methyl-b -naphthoxazole dimethyl sulphate with ethylisothio propionic acid anilide in pyridine and precipitating the dye in the form of bromide.  Specification 403,845 also is referred to.
Patent GB-538904-A (GB)
Title: Improvements in and relating to hydraulic transmission mechanism
IPC: F16D31/02
Filed: 1940-02-14
Abstract: 538,904. Hydraulic transmission of power. STATTS, F. E. Feb. 14, 1940, No. 2848. [Class 69 (ii)] A variable-speed hydraulic transmission comprises a driving-member having cam-means for axially reciprocating a piston in a hollow liquid-containing rotor connected to the driven shaft and provided with a valve for controlling the rate of flow of liquid from one side of the piston to the other and, consequently, the speed of the driven shaft. The coupling shown in Fig. 1 comprises a hollow fly-wheel 10 secured to the driving-shaft, and a hollow rotor 25 secured to the driven shaft 34. A cage 39 secured to the rotor supports an axially movable piston 56 provided with rollers 60, 51 which engage slots 59 in the rotor, and parallel, undulating cam-tracks 19, 20 in the fly-wheel. A valve 44 consisting of tubes 45, 47 connected by spokes 46 is mounted in the cage 39 and a tubular part of the rotor, and can be moved axially, to cover or uncover ports 43 in the cage, by means of a rod 48 connected to an actuating- arm or pedal. A spring normally retains the valve in such position that the ports 43 are fully closed. The rotor is filled with oil &c. through an opening 66 in the piston. The fly-wheel also is filled with oil which serves to lubricate the rotor-bearings 33, 35 and the rollers 60, 61, and also to prevent escape of oil from the rotor. When the valve is in the position shown, the ports 43 permit free circulation of oil, the piston is reciprocated idly by the cams 19, 20, and the rotor remains stationary. As the valve returns to normal position, the ports are gradually closed, reciprocation of the piston is resisted, and the rotor is driven at a gradually increasing speed. When the valve completely covers the ports, circulation of oil is prevented, and the rotor is driven at the same speed as the flywheel. Gradual return of the valve is ensured by means of a dash-pot consisting of an apertured valve-plate 54 mounted freely on the rod 48 and co-operating with the tube 47.
Patent GB-293848-A (GB)
Title: Improvements in or relating to locking nuts
IPC: F16B39/32
Filed: 1928-01-30
Abstract: 293,848. Adnet, P., (Assignee of Lescadieu, P.). July 14, 1927, [Convention date]. Locking nuts.-A cylindrical hole bored tangentially to the nut and impinging slightly on the screw thread contains a ball 4 pressed to engage the thread of the bolt by a spring 3. For unlocking purposes the ball 4 is pressed back by a pin 5 which in turn bears against a ball 6 retained in the hole by burring over an edge 7. The projecting portion of the ball is pressed in by the spanner employed to operate the nut. Reference has been directed by the Comptroller to Specification 191,686.
Patent GB-1102465-A (GB)
Title: Logic module
IPC: H03K19/173
Filed: 1966-01-24
Abstract: 1,102,465. Counters; programming devices. INTERNATIONAL STANDARD ELECTRIC CORPORATION. 24 Jan., 1966 [27 Jan., 1965], No. 3132/66. Heading G4A. A circuit unit or module, Fig. 2, comprises bi-stable storage elements Sp (which may be transistor triggers, as in Fig. 3, not shown), a decoder D which converts a combination of input markings into a corresponding marking on a single one of its output terminals dl to dn, a coder C inverse to the decoder D, and delay units V. According to the Specification this combination of logical units is particularly useful and as examples of its use two counters and a programming device are described. To form a counter with both a binary output and a one-out-of-n output, the decoder outputs are connected to the coder input in staggered relationship, dr to c(r + 1), and the outputs of the delays V are connected to the inputs of the storage devices Sp via switches S. Thus whenever a number x is registered in the storage devices Sp, a number x + 1 is produced at the outputs of the coder C. Momentary closure of the switches S, for a period shorter than the delays V, then transfers the number x + 1 to the storage devices thus effecting a counting action. By using different connections between the decoder and the coder (details given in the Specification) a 2-out-of-5 modulus 10 counter can be formed. With other connections an arbitrary sequence of bit combinations can be produced by successive closures of the switches S.
Patent GB-267670-A (GB)
Title: Improvements in asynchronous electric motors
IPC: H02K17/16
Filed: 1926-02-03
Abstract: 267,670. English Electric Co., Ltd., Cleaver, R. L., and Ball, R. D. Feb. 3, 1926. Alternating - current induction machines.- The end ring of a squirrel cage winding is of narrow and deep section and the part re mote from the bars is embedded in magnetic material of U-shaped section so that near the winding a portion is left which acts as a high resistance path during starting. In the construction shown in Fig. 1, two rings 1 are employed and connection to the winding is effected by twisted teeth 3 inserted in slots in the ends of the bars 2. The magnetic material is in the form of radial laminations 4 having dovetails 6 which are secured on the shaft by collars 8, 9. The laminations, Fig. 3, have slots 5 for the end rings and they may be formed with tapering projections 11 to enable them to fit closely together without vibration. Cylindrical end rings may be employed. In order to reduce the inductance of the end rings in full speed conditions, a part or the whole of the magnetic enclosure may be removable either by hand or automatically.
Patent GB-1465524-A (GB)
Title: Fire protection systems
IPC: A62C35/62
Filed: 1974-01-23
Abstract: 1465524 Fire detector and extinguisher NATIONAL RESEARCH DEVELOPMENT CORP 4 Feb 1975 [23 Jan 1974 15 March 1974] 3193/74 and 11608/74 Heading A5A A fire detection and extinguishing system comprises a main tube 12 connected (a) at one end to a series of bifurcated detector tubes 11 whose open ends 15 extend into areas 13 to be protected from fire, each end 15 having a restrictor nozzle 16 thereon, and (b) at the other end to a control unit 10 which contains a smoke detector 19, a vacuum pump 20 and an extinguishant bottle 17 (containing for example BCF) and a solenoid valve 18. In operation, air is sucked by 20 from 13 via 11 and 12, wherein on detection of the presence of smoke in this air by 19, the solenoid valve 18 is actuated by 19 via relay 24 to vent the entinguishant from 17 through 12 and 11 and into 13. An inflammable gas detector 22 and radiation detector 23 may also be placed in the air stream to actuate the system. An alarm system 25 is also actuated by 19.
Patent GB-626376-A (GB)
Title: Improvements in lapping machines
IPC: B24B37/08
Filed: 1947-02-04
Abstract: 626,376. Lapping machines. RAMSAY, M. Feb. 4, 1947, No. 3310. Convention date, Feb. 5, 1946. [Class 60] In a lapping machine having opposed lapping members and an interposed workholder having openings therein to receive and loosely confine the articles which are to be lapped on both their faces, the operative portions of one lap enter the openings in the work - holder, so that the latter may be thicker than the finished articles. The apparatus is stated to be particularly suitable for lapping piezo-electric quartz crystals to a finished thickness of 0.003 of an inch or less. The lower lap is an annulus 2 secured to the machine table 4, its upper surface having grooves 24 to receive and partially contain the lapping abrasive and liquid used therewith, and also to prevent the formation of a vacuum between the lap and the crystals. The work-holder 20 has crystal-receiving openings 22, which are preferably pentagonal, but may be circular, sufficiently large to allow a rectangular crystal to turn freely in the opening, during lapping, due to the engagement of the corners of the crystal with the sides of the opening. The upper lapping member comprises an annular carrier plate 26 having projecting from its lower face fingers 28 which substantially fit the openings 22 in the work-holder 20 so that they may be partly telescoped thereinto; the fingers 28 have cylindrical stems 34 by which they are secured to the plate 26, and their work-engaging lower faces 30 are provided with grooves 46 which serve the same purpose as the grooves 24 in the lower lap 2. A plate 38 has an annular rib 40 fitting within a central opening 42 of the plate 26, and has at its centre a hole, provided with an insulating bushing, to receive a pin 6 eccentrically mounted on a shaft 12 vertically movable, by a handwheel 15, in a post 14. The pin 6 is eccentrically mounted on a member 8 by rotation of which in arm 10 the eccentricity of the pin 6 relative to the shaft 12 can be adjusted. To avoid ridging, particularly in the initial lapping using coarse lapping powders, the eccentricity is adjusted so as to cause the crystals to project slightly over the outer and inner edges of the lower lap 2. For lapping crystals 32, Fig. 11, of circular contour, the work-holder 20 has circular openings 68, and the finger 70 has an annular lapping surface 72. In a further modification, Fig. 9, the upper lap member comprises a continuous annular member 52 fitting within a corresponding annular opening 54 in a work-holder comprising an outer ring 56 and an inner disc 58. A crossbar 60 secured to the member 52 by dowels 62 has a crank pin receiving opening 64 provided with an insulating bush 66. Since most of the lapping is effected by the lower lap member, the crystals are turned over before lapping is completed. Electrical gauging may be employed.
Patent GB-165452-A (GB)
Title: Improvements relating to the manufacture of hydrocarbons
IPC: C07C2/42
Filed: 1916-03-07
Abstract: Hydrocarbons of the naphthene series are prepared by polymerizing 2- or 3-butene or mixtures thereof by means of anhydrous aluminium chloride; the butene may be treated in the gaseous or liquefied condition and the polymerization may be effected at a low temperature, or at ordinary temperature under pressure. Butenes.-2-Butene, or a mixture thereof with 3-butene, is obtained by passing the vapour of normal primary butyl alcohol through a heated tube, preferably containing alumina or pumice.
Patent GB-178952-A (GB)
Title: Improvements in or relating to process and apparatus for the combustion of fuel in furnaces, with recovery of the bye products
IPC: C10B1/04
Filed: 1921-01-28
Abstract: 178,952. Wilton, T. O. Jan. 28, 1921. Steam-generator furnaces; fuel, feeding; gaseous-fuel fittings.-A process and apparatus for the combustion of solid fuel in boiler furnaces with recovery of the by-products of the fuel consists in supplying the fuel to the rear end of a reversible travelling grate 3 through a retort 7 arranged in the smoke-box 5 of the boiler 1. The gases escaping from the fuel in the retort pass into the perforated pipe 9, on which the screw 10 is mounted for feeding the fuel through the retort, and thence to condensing and purifying plant, the residual gases being returned through the pipe 16 to the furnace When starting the apparatus, fuel is fed forwardly on the grate 3 in the ordinary way, the grate being afterwards reversed to feed degasified fuel from the retort to the furnace 2.