baber/WOPTO huggingface dataset:
Patent GB-1203961-A (GB)
Title: An active capacitance reactance network
Inventor: EDGE GORDON MALCOLM
IPC: H03H11/48
Filed: 1967-04-21
Abstract: 1,203,961. Variable reactor circuits. CAMBRIDGE CONSULTANTS Ltd. 10 April, 1968 [21 April, 1967], No. 18435/67. Heading H3R. A variable capacitive reactor circuit of the type in which a capacitor is connected in the feedback path of a variable gain amplifier, uses an active constant current device as the amplifier load to maximize the effective resistance in parallel with the capacitance. The constant current load in the embodiment described is formed by the emitter-collector current of a transistor and the variation in gain effected either by controlling the electrode potentials of the transistor amplifier used or by varying the bias of a diode connected for A.C. in shunt with the amplifier input.
Patent GB-717089-A (GB)
Title: New or improved plansifter
IPC: B07B1/38
Filed: 1952-07-22
Abstract: 717,089. Sifting apparatus. MIAG MUEHLENBAU UND INDUSTRIE GES. July 22, 1952 [July 23, 1951], No. 18439/52. Class 117 The framework holding the sifting boxes 51 of a plansifter, as described in Specification 694,927, comprises, instead of a single upper and single lower strap lying in a single plane, a pair of upper straps 11 and a similar pair of lower straps which may be attached to a central box 21. The straps may be parallel or converge towards the outer ends the upper and lower members being connected by ties 31. The actuating shaft 41 passes through openings 22 in the box 21 and is mounted in a bearing carried by a central partition therein. The box is provided with side openings covered by cowlings 26.
Patent GB-444526-A (GB)
Title: Improvements in and relating to methods of carrying out chemical reactions by means of electric discharges
IPC: H01J37/32
Filed: 1935-06-27
Abstract: 444,526. Treating gases with electric discharges. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London. June 27, 1935, No. 18450. Convention date, June 28, 1934. [Class 39 (i)] [See also Group XI] In the treatment of gases by electrical discharges for producing chemical reactions such as the production of nitric oxide from air or acetylene from methane, the gas is brought into acoustic oscillation in the treating space. The oscillation may be generated by means of whistles or sirens, or alternatively by an alternating current in the treating space, the frequency of which is tuned to the fundamental acoustic resonant note of the space. One method of carrying out the invention is shown in the Figure, in which a whistle made of insulating material with metal lip L and ledge F is used. The lip L and ledge F are discharge electrodes in a circuit A.
Patent GB-204777-A (GB)
Title: Improvements in or relating to devices for tensioning, and for clearing or cleaning yarn, thread or the like
IPC: B65H59/22
Filed: 1922-07-06
Abstract: 204,777. Wade, H., (Universal Winding Co.). July 6, 1922. Guiding and tensioning yarns.-In a tension device for yarn, thread, and the like used in winding machines and other textile apparatus comprising a tension element adapted to bear against the yarn by gravity-operated means, resilient means are interposed between the gravity-operated means and the tension element of such flexibility as to permit the latter to yield without necessarily overcoming the inertia of the former. Rotary discs 15, 16. between which the yarn passes, are mounted on a spindle 14 and are pressed together by means of a weighted sleeve 21, through the medium of a spring 20. The sleeve is retained in position by an arm 30 adapted to snap over the end of the spindle 14. The lower disc is housed in a recess 19 in the base plate. The discs are surrounded by a guard plate 27 which directs the yarn between the discs when it is threaded through a curved guide 12 in a finger 11 on the base. A yarn-cleaning blade 35, Fig. 4, provided with a yarn leading edge 36, is adjustably mounted on a slide 40 adjustable on a support 34 projecting from the base.
Patent GB-241646-A (GB)
Title: Improvements in internal combustion engines
IPC: F02D9/00
Filed: 1924-08-06
Abstract: 241,646. Royce, F. H. Aug. 6, 1924. Automatic speed control; controlling-apparatus, hand and foot gear in conjunction with. - In internal-combustion engines for motor vehicles having two throttle control mechanisms operated by the driver, one of them being also under the influence of a speed governor, means are provided for disconnecting the other control from the governor when it is actuated by the driver. In the form shown, the latter control comprises the accelerator pedal a<2> connected by linkages a<3>, a<4>, a<5> to a lever a<6> opening the throttle a against the action of a spring a<7>. The first control comprises the rotatable spindle f on the steering-column, and is arranged to vary the action of a spring d<1> in opposing that of a centrifugal governor b\ both the spring d<1> and governor sleeve b<4> acting on a lever c which is further connected at e<2> to a lever e formed with a cam surface acting on the lever a.
Patent GB-292984-A (GB)
Title: Process for the manufacture of raphanus preparations for medical use
IPC: A61K36/31
Filed: 1928-06-27
Abstract: 292,984. Chemische Fabrik vorm. Sandoz. June 28, 1927, [Convention date]. Addition to 235,883, Medicines for internal use.-A remedy is obtained from the fresh roots or juices of radish (Raphanus Sativus) by the process described in the parent Specification for the treatment of garlic and the like. The dry odourless preparation of radish and adsorption charcoal so obtained may be administered as a powder or may be compressed into tablets.
Patent GB-153079-A (GB)
Title: Improvements in or relating to drums and like containers, such as are used for holding liquids
IPC: B01F7/16
Filed: 1919-07-28
Abstract: 153,079. Major, J. L. July 28, 1919. Fittings, internal.- In drums having mixing devices for stirring up the contents before drawing them off, the mixer consists of a perforated .plate, spider frame, or the like b fitted with an operating- rod c extending upwards to the cover, but completely enclosed in the vessel. A central socket a<1>, kept closed by a plug, enables the rod c to be reached and operated when the plug is removed. The can is emptied through the opening a2 and a handle a' may be provided.
Patent GB-589226-A (GB)
Title: Improvements relating to pressure gauges
IPC: G01L7/16
Filed: 1944-07-22
Abstract: 589,226. Pressure gauges. EDWARDS & CO. (LONDON), Ltd., W., TILLS, J. W., LOVATT, J. B., and POTTS, F. C. July 22, 1944, Nos. 18781/45 and 18782/45. Divided out of 589,176. [Class 106 (ii)] In a gauge of the McLeod type the operating liquid is driven into the compression chamber by a piston which is exposed to the gaseous pressure to be measured. A known volume of gas, occupying a chamber 3d, bores 3e, 5d, and a gauge glass 8b, is compressed when a piston 1 descends, forcing mercury contained in a reservoir 3a up into the gauge glass 8b and also through a bore 1g in the pipe and up a balance pipe 14. When the piston is in its lowest position, the open end 14c of the balance pipe is level with the upper end of the gauge glass 8b, and excess mercury flows over the end 14c into a header chamber 13 and down a pipe 15 into a bore 1d in the piston. Also, mercury, which has seeped past the piston runs down the sloping upper surface 1a into a bore 3i communicating with the reservoir. When the piston returns to its upper position, mercury which has collected in the bore 1d returns to the reservoir, through the bore 3i. Gas is admitted to the pressure chamber 3d from the cover 2 when the piston is in its upper position, through the pipe 14 and bores 1g and 3f. In another embodiment, the balance pipe 14 and the overflow pipe 15 are arranged concentrically, and the piston 21 is moved by an external hand wheel 83, operating a screw-and-nut device 89, passing through a sealing diaphragm 87 and connected to the piston by a multiplying linkage 99. Specification 589,176 is referred to.
Patent GB-710421-A (GB)
Title: Improvements relating to magnetic induction accelerators
IPC: H05H11/00
Filed: 1951-08-09
Abstract: 710,421. Magnetic induction accelerators. METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Aug. 9, 1951 [Aug. 29, 1950], No. 18788/51. Class 39(1) A betatron in which the faces of the pole pieces 2, 3 on each side of the annular gap which includes the orbital path are chamfered or graded in such manner that the length of the gap increases progressively with increase of radius from the axis of the betatron (except in the outermost regions), is provided with a set of electrically separate compensating coils 31 which extend circumferentially of the betatron along the surfaces 4, 5 of the annular pole pieces, and are adapted to correct radial flux distribution when appropriately excited, so as to stabilize the electron movement in the desired orbital path. Imperfections in the radial flux distribution may arise due to irregularities in the magnetic structure and by means of the compensating coils the magnetic field may be made to conform to the relationship H # <SP>1</SP>/r<SP>n</SP> (o>n<1). Also, the magnetic lines of force may be made perpendicular to the plane of symmetry of the annular container 6. Each compensating coil is in series with a variable resistance. The energizing currents for the coils may be alternating or direct. The alternating currents may be simply those induced by the betatron acceleration field. The coils may also be excited from an A.C. source synchronized with the betatron acceleration field. With direct current induced alternating currents are suppressed.
Patent GB-613638-A (GB)
Title: Improved animal food
IPC: A23K1/16
Filed: 1946-06-24
Abstract: In making cakes or biscuits for animals, especially dogs, shapes of a dough consisting of flour, and if desired finely divided meat, mixed with water or other liquid are passed through edible oil or melted fat or are cooked in boiling edible oil or fat, are dried, and are then baked in an oven.
Patent GB-121523-A (GB)
Title: Improvements in Tools for Bending or Working Metal.
Inventor: WAINE GEORGE ALEXANDER
IPC: B21D7/06
Filed: 1917-12-20
Abstract: 121,523. Waine, G. A., and Waine, J. V. Dec. 20, 1917. Bending boot-irons.-A bar of metal having a bevelled edge is bent into U, V, or similar form to form a boot tip or other article by rollers d having conical grooves co-operating with a lower die a, which also may be grooved. The bar is fed into the groove in one of the members prior to the bending operation, and is positioned by a gauge h. One face of the bar may be bevelled. The rollers may be mounted on the plunger c by means of adjustable pivoted brackets. Fig. 4 shows a spring clip on the gauge k to grip the end of the blank. Fig. 5 shows a device for removing the blank from the die a, comprising a pivoted ring m formed with projections m<1> which raise the blank when the ring is moved by a pin-and-slot device l, n connected to the plunger c. In a modification, the die a is not grooved and is dome-shaped so that it can be turned into different angular positions. The blank is held on the die by a spring-pressed projection on the plunger. The rollers d are mounted on pivoted arms and are connected by links to other rollers running on vertical cam surfaces, which may be supported and may be arranged to bend the blank through more than 180 degrees. A cutter is carried by the plunger c to sever the blank from a strip which is fed into the machine. Fig. 7 shows a roller d made in two parts d' pressed together by a spring w, in order to prevent wedging of the blank in the groove.
Patent GB-1470480-A (GB)
Title: Optical multiplexing by imaging charge transfer device
IPC: H04J14/08
Filed: 1975-05-06
Abstract: 1470480 Optical multi-plexing system INTERNATIONAL STANDARD ELECTRIC CORP 6 May 1975 [14 May 1974] 18924/75 Heading G1A [Also in Divisions H3 and H5] In an optical multi-plexing system utilizing an image charge transfer device (CTD) 14, the intensity modulated light signals carried by light fibres 12a, b .... n and emerging from a planar end 13, are imaged on to the light-sensitive areas of a CTD array 14 in a one to one correspondence. A charge transfer device, CTD, comprises a series of semi-conductor regions, Fig. 1 (not shown), which each store a charge proportional to the incident light on it during a given period and the regions are serially "read-out" by way of electrodes associated with each region. Each fibre 12a, b .... n corresponds to an information channel 1, 2, .... n with its associated signal generator G 1 , G 2  .... G n  and light emitting diode (LED) or laser diode d 1  d 2  ... dn. The serial electrical output 20 of the CT device 14 is a time division multi-plexed signal (T.D.M.) which is used to directly modulate a further LED or laser diode 21, thereby directing a T.D.M. signal via a single optical fibre 23. The T.D.M. signal is detected at the other end by a high speed avalance photo-diode 24 whose output is amplified and fed to a de-multiplexer 26. The description refers to a series of waveforms Figs. 3A-3E (not shown).
Patent GB-893565-A (GB)
Title: Improvements in or relating to computing apparatus
Inventor: BROWN ALASTAIR ANDERSON
IPC: G06G7/78
Filed: 1959-06-03
Abstract: 893,565. Measuring airspeed. KELVIN & HUGHES Ltd. May 20, 1960 [June 3, 1959], No. 18972/59. Class 40 (1). [Also in Group XXXVI] The true airspeed of an aircraft is computed by an automatically - balanced Wheatstone bridge having diametrically opposite arms varied in accordance with functions of Mach number and stagnation temperature respectively, the latter being driven by the rebalancing means of a further bridge. The Mach number signal is preferably derived from measurements of pitot pressure (P) and static pressure (S) in force balance systems as in Specifications 889,594, and 889,595, giving outputs representing S and (P - S). These systems are shown at 10 and 11 in Fig. 1, the mechanical outputs being transferred by log cams 16 and 17 to a differential synchro 20 which thus gives an electrical P-S  output representing log - A further S synchro 22 (with mechanical feed-back) and cam 28 (to compensate for errors characteristic of the particular aircraft) provides a mechanical input representing Mach number (M), and this drives one of the variable resistors in the A.C. bridge 31 (details in Fig. 2, not shown). A further automatically-balanced bridge contains a temperature probe 35 (e.g. platinum resistance thermometer) and two ganged variable resistors driven by the rebalancing motor, whose degree of movement therefore represents the square root of the stagnation temperature (Ti). This mechanical signal drives the second variable resistor in the bridge 31 and the output at 39 is thus proportional to the product of the two inputs, i.e. the square root of stagnation temperature and the desired function of Mach number provided by the cam 28. This output synchro or potentiometer to give an indication of airspeed, or can be fed into a mechanical integrator to show distance flown. The function of Mach number (M<SP>2</SP>/1 +M<SP>2</SP>K) can be controlled by arranging a replaceable fixed resistor in parallel with that driven by the cam 28 (Fig. 3, not shown), in which case the bridge has two opposite arms simultaneously adjusted for rebalance, so that it computes the airspeed as the square root of the product of stagnation temperature and function of Mach number squared. According to the Provisional Specification the temperature can be sensed by a thermocouple.
Patent GB-1107283-A (GB)
Title: Expandable polystyrene compositions and expanded polystyrene formed therefrom
Inventor: JOLLES ZVI ENRICO
IPC: C08J9/00
Filed: 1966-04-29
Abstract: A granular expandable polystyrene composition contains as a fire-retardant a minor amount of a compound of formula Ar(Br)m(Cl)nR or Ar(Br)x(Cl)yOR where Ar is an aryl residue, m is 1-4, n is 0-2, x is 1 or more, y is 0 or an integer and R is hydrogen, a straight or branched chain alkyl group which may be halogenated, a straight or branched chain alkenyl group or a halogenated aryl group; there being at least 2 nuclear bromine atoms per molecule of the above compound. The compound may be tetrabromobenzene, tribromophenol, pentabromophenyl (allyl, ethyl or n-propyl) ether, an isomer of tribromotoluene or tribromophenyl allyl ether, chlorodibromotoluene, chlorodibromophenyl allyl ether, hexabromodiphenyl ether, dibromodiphenyl, dibromonaphthalene; 2,4 - dibromo - 1 - methylnaphthalene; 1,5 - dibromoanthracene; pentabromophenyl dibromopropyl ether, pentabromophenol or tetrabromochlorophenol.  The composition may also contain dicumyl or di-tert. butyl peroxide, tert. butyl peracetate or cumene hydroperoxide.  The compositions may be made by polymerizing styrene in the presence of the fire-retardant compound, polystyrene granules, benzoyl peroxide, water and petroleum ether as expanding agent and the resulting polymer may be granulated, expanded by heating in steam and then moulded into a block.
Patent GB-242701-A (GB)
Title: Improvements in or relating to looms
IPC: D03D49/44
Filed: 1924-08-11
Abstract: 242,701. Gourdon, G. Aug. 11, 1924. Beat-up motions; lays.-The beat-up is effected by one or more pairs of electromagnets, the cores r, r', Fig. 2, of each pair being adjustably connected by a rod l and set-screw s, the rod l carrying between fixed collars q, a sleeve m, Figs. 2 and 2a having side eyes n through which slide portions o of the slay p, o. Picking motions; checking shuttles and pickers; pickers.-A picker w, Fig. 3, of soft iron mounted on balls or rollers and provided with a leather or other resilient end x is advanced to pick the shuttle y by means of the electromagnet v<1>, and retracted by the electromagnet v. The shuttle is checked by means of a third magnet v<11>. In some cases, the picker and its retracting magnet are dispensed with. In a change-box loom, each box has a checking magnet but there is only one picking magnet at each end of the loom.
Patent GB-1234803-A (GB)
Title: Improvements relating to catalytic reforming
Inventor: LAWRANCE PAUL ANTHONY
IPC: B01J27/13
Filed: 1968-04-23
Abstract: 1,234,803. Reforming naphtha. BRITISH PETROLEUM CO. Ltd. 27 March, 1969 [23 April, 1968], No. 19094/68. Heading C5E. In a process for catalytically reforming naphtha over a Pt group metal-alumina-halogen catalyst at 800‹ to 1100‹ F. to give a product of increased octane number and/or aromatic content in which the halogen content of the catalyst is maintained by adding a halogen compound to the reaction zone, the halogen content is kept above 0À3 wt. per cent when the catalyst is active, and below 0À3 wt. per cent when it has become deactivated. A deactivated catalyst is one requiring at least a 20‹ F. increase in inlet temperature to produce a given octane number as compared with a fresh catalyst under similar conditions. Preferably the deactivated catalyst contains less than 0À15 wt. per cent halogen, and the addition of halogen to the reaction zone is stopped when the catalyst is deactivated.
Patent GB-837255-A (GB)
Title: Combination brooch and earring
Inventor: BANGS RALPH CLINTON
IPC: A44C1/00
Filed: 1958-06-16
Abstract: 837,255. Jewellery. CORO Inc. OF RHODE ISLAND. June 16, 1958, No. 19214/58. Class 43 A combined brooch and ear-ring comprises a plate 12 having a U-shaped bracket 18 to which is pivoted independently on the same axis a clamping arm 40 and a brooch pin 22 the clamping arm having an extension 50 and end cap 52 slidable thereon to receive the point of the pin so that the clamping arm and pin may pivot together. Laterally extending arms 28 of two pins 24 pivot in spaced bracket ears on the plate 12 and bearing portion 44 on the clamping arm pivot on the arms. The pins are mounted in a jacket 32 at 34 and 36. The jacket has a lug 38 which contacts a spring 60 overlying the bracket 18. For use as an ear-ring the pin points engage in the cap 52. For use as a brooch the extension slides on the clamping arm, limited by an abutment 48 to disengage the pin points from the cap. The plate 12 is suitably ornamented.
Patent GB-1307485-A (GB)
Title: Oil-heated once-through heater with means for preheating the mixing chamber
IPC: F23N1/02
Filed: 1971-06-07
Abstract: 1307485 Water heaters JOH VAILLANT KG 7 June 1971 [6 July 1970] 19224/71 Headings F4A and F4T A once-through water heater comprising a heat exchanger 3 mounted in a heating shaft 1 is heated by the combustion of oil sprayed from a high-pressure nozzle 12 into a mixing chamber 8 with air delivered into chamber 8 from below through annular chambers 22 and 9, the combustion air being supplied by a blower 21 and preheated by an auxiliary oil spray nozzle 18 with an ignition electrode 23. The heat exchanger 3 is in the form of a finned block with once through pipes supplied with cold water by a pipe 5<SP>1</SP> and delivering hot water through a pipe 6. The oil-vapour air mixture is burned above a plate 7 and ignited by an electrode 24 and monitored by an electrode 25. The open bottomed mixing chamber is located in a cup shaped insulating member 10 and the temperature at its bottom is monitored by a thermostat 26. Below a certain temperature valves 16 and 20 are electrically actuated so that oil supplied by a pump 14 is delivered to nozzle 18 while the blower and electrode 23 also operate to pre-heat chamber 8, When the required temperature is attained thermostat 26 switches valve 16 to allow oil to reach the main nozzle 12, and after ignition thereof the auxiliary burner may be shut off.  Reference has been directed by the Comptroller to Specification 1,116,256.
Patent GB-375558-A (GB)
Title: Improved apparatus for playing a game
IPC: A63F9/14
Filed: 1931-07-03
Abstract: 375,558. Games of chance. BUTTERWORTH, A. L., Sundorne, Bishopthorpe, and HETHERTON, J., 19, Sycamore Place, both in York. July 3, 1931, No. 19262. [Class 132 (ii).] In an apparatus for playing games of chance an inertia motor adapted rapidly to be rotated manually, is connected through reduction gearing with the movable element of a rotary selector switch which controls the illumination of a number of lamps giving an indication of the result of the operation. As shown, the inertia motor is set in movement by pressing-in a handle 14 to engage the driving gear and then rotating the handle. On releasing the handle, a spring uncouples the gearing from the handle and leaves the motor free to drive the rotary selector switch through a crank and reduction gearing. The selector switch comprises a number of unequal segments 21, Fig. 3, electrically connected in pairs by wires 20, and each pair includes in its circuit one of a series of lamps arranged beneath translucent areas 5 each bearing the name of a horse, the odds against the horse being inscribed on an adjacent section 4. A conical shade round each lamp also directs the light on to a corresponding horse depicted on a screen 3. As the rotating contact 23 passes over the segments the lamps are illuminated in turn, and, when the inertia motor comes to rest, the name of the winning horse and its representation on the screen 3 remain illuminated.
Patent GB-1038453-A (GB)
Title: Improvements in or relating to mine roof supports
Inventor: TAYLOR LAWRENCE WILLIAM
IPC: E21D15/54
Filed: 1962-05-19
Abstract: 1,038,453. Hydraulic pit props. W. E. & F. DOBSON Ltd. May 9, 1963 [May 19, 1962], No. 19388/62. Heading E1E. The roof or base cap 1 of an hydraulic pit prop is provided with renewable spike projections in the form of inserts 6 together with serrations formed by triangular sectioned annular ribs 5. The cap is positioned on the prop by means of retention screws or is tiltably mounted thereon, see Fig. 7 (not shown).