baber/WOPTO huggingface dataset:
Patent GB-1048925-A (GB)
Title: Improvements in or relating to fluid control valves
Inventor: COUFFER ROBERT WILLIAM
IPC: F16K31/68
Filed: 1963-05-21
Abstract: 1,048,925. Valves. DOLE VALVE CO. May 21, 1963, No. 20226/63. Heeding F2V. A valve controlling the supply of hot water to radiators comprises a housing having an inlet 81, an outlet 82, and a valve seat 84. A valve closure 92 is mounted on a stem 90 connected to an actuator 96, which is actuated by fluid from a temperature sensing 'bulb 98 connected by a capillary tube 99. A flange 95 of the actuator engages a cup-shaped member 94 carried by a cap 93 whereby rotation of the cap through its screw-threaded engagement with the housing adjusts the actuator position to vary the temperature range.
Patent GB-1429787-A (GB)
Title: Colour formers
IPC: C07D307/885
Filed: 1972-05-02
Abstract: 1429787 Colour formers WIGGINS TEAPE Ltd 27 July 1973 [2 May 1972] 20272/72 Heading C4P [Also in Division D2] A water-soluble colourless colour former has the general formula where A and B are each independently selected from the optionally substituted radicals where R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP>, R<SP>4</SP> and R<SP>5</SP> each independently represents H or an opt. subs. hydrocarbon radical, or forms part of a heterocyclic ring containing the attached N atom, Z represents an opt. subs. 1,2-phenylene or 1,2-naphthylene residue, and Y represents oxygen or a group -NR<SP>6</SP>- where R<SP>6</SP> represents H or an opt. subs. hydrocarbon radical, said compounds containing at least one water-solubilizing group. The water-solubilizing group may be anionic or cationic; a group of formula has R<SP>7</SP>, R<SP>8</SP>, R<SP>9</SP> independently representing opt. subs. alkyl, aralkyl or cycloalkyl, or forming part of a heterocyclic ring containing the attached N atom, and associated with the appropriate number of anions. The examples describe the sulphonation of Malachite Green Lactone or 3,3-bis-(1,2-dimethyl-indol-3-yl)-phthalide, giving green or red images respectively with copying systems. Transfer sheet material may be used to prepare a master paper and from this, by the hectographic or spirt-reproducing copying process, a number of copies may be obtained.
Patent GB-645643-A (GB)
Title: Improvements in or relating to electric lamp-holder adapters of the bayonet-cap type
IPC: H01R33/94
Filed: 1948-07-30
Abstract: 645,643. Two-part couplings. ASHLEY ACCESSORIES, Ltd., and FOXCROFT, J. C. July 30, 1948, No. 20300. [Class 38 (i)) A bayonet-cap type of lampholder-adaptor comprises two identical parts 10 having semicylindrical portions 12 provided with cavities 13, 14 to receive contacts 26 and the bayonet pins 23, so that when the parts 10 are assembled together by a bolt and nut 25 passing through a bore 20 in the parts 10, the contacts 26 and the pins 23 having their heads 24 abutting are retained in position. The contacts 26 have conductor-receiving ends 27 and heads 31 between which are necks 30 which engage in reduced portions of the cavities 13, 14. A half of a cable entry 18 is provided on a flat portion 15, of the body-part 10, extending from the portion 12, and opens into cavities 16, 17 in the portion 15. A cord grip 22 is positioned between the cable entry and the latter cavities to engage the cable insulation and thereby relieve the contacts 26 of strain.
Patent GB-1255048-A (GB)
Title: Improvements in rectifiers
Inventor: MELLGREN GUNNAR
IPC: H01L23/473
Filed: 1969-04-22
Abstract: 1,255,048. Semi-conductor devices. ALLMANNA SVENSKA ELEKTRISKA A.B. 22 April, 1969 [23 April, 1968], No. 20381/69. Heading H1K. A row of rectifiers 5 such as diodes or thyristors is mounted between a pair of hollow bars 1, 2 through which a coolant flows, clamping means being arranged opposite each rectifier 5, to press the bars 1, 2 against it. In the form shown the clamping means comprises two yokes linked by bolts 10, 10<SP>1</SP>, one of the yokes 8 being of spring steel and engaging a spherically surfaced insert 7 on the corresponding bar 2. Cu bodies 4, 6 contact the rectifier 5, one of which bodies 4 is insulated from the bar 1 by a flanged body 31 of BeO or Al 2 O 3  preferably plated with a soft metal such as In, Ga, Pb or Sn with an undercoat of Ag or Ni.
Patent GB-148472-A (GB)
Title: Improvements in or relating to cinematographic projectors
IPC: G03B21/16
Filed: 1920-07-10
Abstract: 148,472. Motlier, E. N. Dec. 20, 1918, [Convention date]. Kinematograph apparatus.-To reduce the risk of fire when the film is moving slowly, the intensity of the projecting lamp is automatically controlled by the speed of the film. When the film is moving slowly the lamp 7 is in series with a resistance 10 which is short-circuited when the speed is sufficiently high by a contact 4 being moved against a contact 5. The contact 4 is carried by a drum 3 surrounding a shaft 1 of the kinematograph, pivoted arms 2 secured to the shaft being pressed against the drum by centrifugal action to rotate it when the speed is sufficiently high.
Patent GB-222620-A (GB)
Title: Improvements in feed pumps, particularly adapted for the feed of fuel in liquid fuelengines
IPC: F02M59/36
Filed: 1923-08-14
Abstract: 222,620. Fielding, S. J. Aug. 14, 1923. Regulating delivery by by-passes.-In a fuel pump for internal-combustion engines of the type described in Specification 104,811, the plunger is made in two relatively-movable parts A, B so arranged that during the initial portion of the delivery stroke the fuel is by-passed through a channel F in the plunger to a chamber H surrounding the barrel D, and during the. middle portion of the stroke, the length of which is determined by the governor, delivery to the engine takes place. The governor controls the end of the delivery by means of a sleeve C capable of longitudinal movement on the plunger A so that its end C<1> controls the moment of opening of a port M<1> of another passage M in the plunger. In another form, the sleeve C slides on the part B and controls by-pass ports therein opening into the chamber H.
Patent GB-586236-A (GB)
Title: Improvements in or relating to detonating mechanism for aerial bombs, pyrotechnic devices and the like
IPC: F42C15/295
Filed: 1944-10-26
Abstract: 586,236. Fuzes for aerial bombs &c. HEBARD, H. C., and IMBER RESEARCH, Ltd. Oct. 26, 1944, No. 20873. [Class 9 (i)] An air-arming device for an aerial bomb or pyrotechnic device comprises a casing o, a wind vane carried by a spindle mounted axially in the casing, a wheel a which is rotated by the spindle and a two-armed lever c, d pivoted on the wheel a, of which the arm c is forced outwards, Fig. 3, by a predetermined centrifugal force to trip a hammer q, pivoted at r, causing the detonation of a cap l. The lever c, d and hammer q are normally held in position by springs f and u, respectively. The cap l is connected by passages m, n to the main charge.
Patent GB-1499195-A (GB)
Title: Press having two endless moulding belts
IPC: B30B15/10
Filed: 1975-05-16
Abstract: 1499195 Double belt press E KUSTERS 16 May 1975 [24 May 1974] 20982/75 Heading B5A A web 4<SP>1</SP> of material is compressed between endless belts 1, 2. The sides of the run between the belts 1, 2 are closed by resilient endless belts 37 (Fig. 2) that are supported by a plurality of interconnected plates 33 projecting from the links 32 of endless chains running via rollers 31 on rails 30. The endless belts 1, 2 are supported in a pressing area 3 by opposing pairs 19, 20 of interconnected supports pressing on buffer plates 26, 27 that are surrounded by roller chains 60, and include hot water or steam ducts. Chipboards, blockboard or plastics sheeting is formed.
Patent GB-357674-A (GB)
Title: Improvements in or relating to coin testing devices for use more particularly with coin freed vending machines
Filed: 1930-07-12
Abstract: 357,674. Coin - freed apparatus. AVERY, Ltd., W. & T. and LEESON, A., Soho Foundry, Birmingham. July 12, 1930, No. 21125. [Class 27.] Testing coins.-In a coin-testing device for use with coin-freed apparatus, the coins roll down a longitudinally and laterally inclined shoot 5a, Fig. 1, of channel section, the web 5b of which is provided with rectangular openings 5c, 5d for rejecting undersized coins. The height of the openings is adjusted by a gauge plate 6 secured to the shoot by screws 7. Two counterbalanced levers, the lower arms 10a Fig. 4, of which are of skeleton formation, are pivoted in brackets 9 with the openings in the arms 10a corresponding with the openings 5c, 5d. The front sides of the arms 10a, under the action of adjustable counterweights 11 on threaded arms 10c, constitute a continuation of the track on which the coins run. An overweight coin of correct size tilts the first lever and falls through the opening 5c and through the gap in its arm 10a to a rejection receptacle. A coin of correct size and weight passes the first lever but tilts the second lever to fall through the gap 5d and be led to the operative mechanism of the coin-freed machine. A light coin passes over both levers direct to the rejection receptacle. The front sides of the gapped arms 10a are provided with short upstanding flanges 10b which deflect rejected coins through the openings in the shoot.
Patent GB-573856-A (GB)
Title: Improvements in or relating to the purification of potable water
IPC: C02F1/28
Filed: 1943-12-16
Abstract: 573,856. Purifying water. COOKSON, K. Dec. 16, 1943, Nos. 21159/43 and 4419/44. [Class 46] A process for the purification of potable water, in addition to normal steps of water purification, comprises subjecting the water to treatment with activated silica, for example silica gel, with activated alumina and with active carbon. The three activated materials may be mixed together or the water before or after treatment with activated silica may be treated with activated alumina and active carbon. According to the second Provisional Specification the water in addition to treatment with the activated materials is also treated with calcium orthophosphate or with a substance, as for example calcined bones, which contains such phosphate. Specification 247,241, [Class 46], is referred to.
Patent GB-1003893-A (GB)
Title: Method and apparatus for producing drafted slivers or sliver ribbons
IPC: D01G15/46
Filed: 1962-06-01
Abstract: 1,003,893. Doffing and drafting carded webs; forming fibre strips. CHICOPEE MANUFACTURING CORPORATION. June 1,1962 [June 1,1961], No. 21233/62. Heading DIN. A carded web which is drafted slightly as it is removed from a doffer cylinder is wrapped several times around an endless belt that is laterally displaceable and a predetermined narrow width is separated from the plurality of wrapped webs to form a sliver or ribbon. The web is taken from the doffing cylinder 12 by doffing and drafting mechanism 20 including a belt carried over an adjustable guide bar and driven at a linear speed greater than that of the doffing cylinder. From the mechanism 20, the web passes over an idler roll 46 to be deposited on the belt 50 which is looped around rolls 52, 54 in a plurality of convolutions or laps. Each of the rolls 52, 54 has a series of crowned surfaces with one crown for each lap of belt to prevent lateral movement. The embodiment illustrated has twenty laps of a belt two inches wide. The reaches of the belt on which the web is received are normal to the axes of rollers 52, 54 but the rearward reaches are guided for lateral displacement by one tape width. At each lap of the belt a further layer of the fibre web is added until, in the illustrated embodiment, twenty webs are superimposed. Between the last and adjacent laps are positioned a pair of circular shears 74, 76 arranged to separate a ribbon from the web, which ribbon is then passed between calender rolls 78, 80 and a drafting device 82 where drafts of the order of three may be applied. Specification 1, 003, 894 is referred to.
Patent GB-836813-A (GB)
Title: Device for setting the beginning of fuel injection in internal-combustion engines
Inventor: HAUBENHOFER MAX
IPC: F02D1/16
Filed: 1956-07-10
Abstract: 836,813. Centrifugally adjustable couplings. SATZGER, E. July 10, 1956, No. 21307/56. Class 80 (2). [Also in Group XXVIII] A coupling for setting the beginning of fuel injection in internal-combustion engines in dependence on the speed thereof employing spring- loaded centrifugal weights whose displacement is translated by transmitting members into an angular adjustment of the drive is characterized by the combination of the measure that the centrifugal weights are guided along a straight line in one coupling member and the transmitting members consist of eccentrics which are rotatably carried in the centrifugal weights and whose eccentric pins or eccentric shafts are rotatably carried in the drive member to be adjusted relative to the coupling member which guides the centrifugal weights. In Figs. 1 and 2 the weights 1 are connected to the member 4 to be adjusted relatively to the part 3 by the eccentric members 7. In Fig. 3 the pivots 5 of the eccentric members 7 are located nearer the axis than the pivots 6. In Figs. 7 and 8 the gear 12 is driven by the engine crankshaft. The gear 12 is rotatably carried by the hub 20 which latter is mounted on the shaft 11 of the injection pump 8. The eccentrics 26 are rotatably mounted in the weights 1 and pivots 27 are rotatable in the hub 20. The leaf springs 13 come into operation at the end of the stroke of the weights. Slots 25 are provided to permit adjustment of the time of injection. Oil mist from the engine housing may enter at 28 and leave at 29. In Fig. 9 the setting device is disposed outside the engine casing. The torque is transmitted to the setting device by claws 30. Slots may be provided for adjustment in this embodiment. The setting device may be entirely or partly filled with oil during assembly.
Patent GB-320894-A (GB)
Title: Improvements relating to aeroplanes
IPC: B64C23/00
Filed: 1928-07-23
Abstract: 320,894. Barnes, L. J. July 23, 1928. Planes, construction, of. - Each plane of an aeroplane has a series of openings 2 beneath the leading edge and a series of openings 5 at the top of the plane each communicating with the interior of the plane, and the openings are controlled by hinged or sliding valves 3, 6 operated simultaneously by the linkage shown.
Patent GB-1069800-A (GB)
Title: Varactor diode
Inventor: MASH DEREK HUBERT
IPC: H01L21/223
Filed: 1965-05-20
Abstract: 1,069,800. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. May 4, 1966 [May 20, 1965], No. 21344/65. Heading H1K. A varactor diode includes a junction 5 between a first region 4 of metal or semiconductor material and a higher resistivity second region 2 of semi-conductor material which surrounds the junction, and opposite to the junction an interface between the second region 2 and an insulating region 8, 9 or 10, so that with increasing reverse bias of the junction its depletion layer spreads outwards through the second region 2 until it reaches the interface (causing an abrupt drop in capacitance) and thereafter continues to spread only sideways through the second region. The insulating region may be formed by boring through a conductive substrate 1 as shown, Fig. 1, or may be an insulating substrate (12, Fig. 3). The interface may be parallel or inclined to the junction, convex, concave, or stepped, according to the voltage-capacitance characteristic required.
Patent GB-188403-A (GB)
Title: Improvements in the bodies of vehicles
IPC: B62B9/12
Filed: 1921-08-12
Abstract: 188,403. Dunkley, W. H. Aug. 12, 1921. Baths convertible into vehicle bodies.-Bodies for vehicles, especially perambulators, invalid chairs, &c. are adapted to be used as baths. A metal shell 1 carries an inflatable member 6 provided with a tube 22 and valve 21.
Patent GB-1125082-A (GB)
Title: Improvements relating to waveform generators
Inventor: PEDDER DONALD AUSTIN GRANT
IPC: H03K5/02
Filed: 1966-05-13
Abstract: 1,125,082. Inverting. INDUSTRIAL INSTRUMENTS Ltd. 14 Aug., 1967 [13 May, 1966], No. 21438/66. Heading H2F. In a waveform synthesizer of the type shown in Fig. 2 for building up a sinusoidal waveform from pulses, the spacing between pulses (Fig. 4) is adjustable so as to control the mean output voltage. A system is described for synthesizing a waveform having a number of preselected odd harmonics, at least the fundamental and third harmonic being synthesized by circuits of the type shown. Fig. 3 shows the trigger pulse generator for the thyristors of the fundamental frequency synthesizer of Fig. 2. The frequency is determined by a sawtooth oscillator 1 having eighteen times the required fundamental frequency and triggering a bi-stable 2 giving inverse pulses at nine times the required frequency to trigger thyristors 1A, 1B. A ring counter and logic circuits provide further pulses at nine times the required frequency to trigger the appropriate thyristors 1 . . . 10 which determine the magnitude of each step in the output waveform of Fig. 4. The filtered output is rectified at 6 and compared with the instantaneous value of the sawtooth wave from 1 in a differential amplifier 5 the output of which is fed to AND gates Y so as to control the firing time of thyristors 1 . . . 10 and hence the spacing between the segments. The output voltage is thus regulated. Figs. 5, 6 (not shown), show a simpler inverter for the third harmonic. Simple square wave inverters are employed for the other harmonics, all inverters being controlled from a master oscillator and frequency dividers (Fig. 1, not shown). In Fig. 7 (not shown), the outputs of all inverters are combined in series, a potentiometer being included between the mains input to the rectifiers supplying the respective inverters so as to adjust the proportion of each harmonic in the composite waveform. The fundamental frequency of the composite waveform can be adjusted from 40 c/s. to 500 c/s. by adjustment of the frequency of the master oscillator (Fig. 1, not shown).
Patent GB-1353867-A (GB)
Title: Absorbent particle hand dryer
IPC: A47K10/48
Filed: 1972-05-08
Abstract: 1353867 Hand dryers R HELBLING 8 May 1972 [6 May 1971] 21446/72 Heading A5R A hand dryer comprises a chamber 5 for receiving user's hands through a front opening therein, and means for establishing a current of warm air, containing a stream of absorbent particles, through the chamber. Air drawn in through a filter 1 by a fan 2 passes through a heater 3 and over a rotary rasp 6 which reduces a bar 7 of absorbent material to particles, the stream of warm air and particles passing into chamber 5 via tubes 11, 12 and being removed via outlets 13 and a conduit 15 with the aid of a fan 14, the particles passing into a removable sack 16 and the air passing to atmosphere via a filter 18. The bar 7 is advanced by a feed plate 9 which is coupled to means for indicating the length of the bar and which is automatically advanced by a motor-driven chain 10 or feed-screw. This baradvancing motor is provided with a delay switch so that a stream, of warm air is established before the introduction of particles, and the flow of warm air is continued for a time after cessation of such introduction.
Patent GB-830117-A (GB)
Title: Improvements in or relating to electro-acoustic transducers
Inventor: KANE FREDERICK GEORGE HARRY
IPC: H04R9/04
Filed: 1958-07-04
Abstract: 830,117. Telephone instruments. STANDARD TELEPHONES & CABLES Ltd. July 4, 1958, No. 21473/58. Class 40 (4). In a moving-coil transducer, the terminations 3 and 4 of the moving coil 2 and the periphery of the diaphragm 1 are embedded in a moulded insulating ring 7. The ring 7 carries terminals 5 and-6, to which the wires 3 and 4 are soldered, and spigots 8 for locating the diaphragm-andcoil assembly on the magnet unit.
Patent GB-647903-A (GB)
Title: Separation of close-boiling alcohols from aqueous liquid mixtures by distillation
IPC: B01D3/36
Filed: 1947-08-07
Abstract: <PICT:0647903/III/1> Water-soluble alcohols of different molecular weights, which have close-boiling aqueous azeotropes, are separated from each other by passing the mixture, which may also contain other oxygenated organic compounds such as ketones, into the side of a fractionating column, and introducing water into the top of the column to make the water content of the internal reflux at least 65 mol. per cent and sufficient to alter the relative volatilities of the components of the feed-mixture so that a dilute aqueous solution of the alcohol of lowest molecular weight, free from the other organic components of the feed mixture, is withdrawn from the base of the column while vapours of the other components are withdrawn overhead.  In an example, a mixture containing ethyl alcohol, isopropyl alcohol, methyl ethyl ketone and water was fed at 52 volumes per hour between the sections (each of 30- plates) of a fractionating column; and 2100 volumes per hour of water at 90 DEG C. was introduced into the top of the column.  The reflux ratio was somewhat higher than 30 : 1.  After equilibrium was reached, no detectible concentration of isopropyl alcohol or of methyl ethyl ketone was found in the aqueous ethyl alcohol bottoms.  Other examples describe the separation of ethyl alcohol from the products of a Fischer synthesis.  When more than one component is required to be separated in a pure state, apparatus such as that shown is employed.  An aqueous mixture of narrow boiling-range containing ethyl alcohol, isopropyl alcohol, tertiary butyl alcohol and methyl ethyl ketone is fed through inlet 44 into column 41; and water is introduced into the column through inlet 45.  Dilute aqueous ethyl alcohol is withdrawn through line 50 and passed to column 51 where it is concentrated; a distillate containing about 96 per cent ethyl alcohol, 4 per cent water and less than 0.1 per cent of other organic compounds, being obtained through line 57.  The distillate from column 41 is passed through line 58 into column 42 where a water concentration of 90-99 mol. per cent is maintained in the internal reflux by adding water through line 62.  Dilute aqueous isopropyl alcohol, free from butyl alcohol and M.E.K., is withdrawn through line 64 and concentrated in column 65.  Similarly, columns 43 and 78 are used for the separation and concentration of tertiary butyl alcohol.  The water withdrawn from the bottoms of columns 51, 65 and 78 is pumped back to columns 41, 42 and 43, respectively.  The separation of alcohols from an olefin hydration reaction, and from a hydrocarbon oxidation reaction is referred to.  Specification 598,346 is referred to.
Patent GB-749052-A (GB)
Title: Improvements in or relating to the manufacture of cellular material
Inventor: CARPENTIER PASCAL JULES
IPC: C08J9/04
Filed: 1952-08-27
Abstract: 749,052. Moulding cellular rubber and resin EQUIPMENT MENAGER ET INDUSTRIEL E. M. I. Aug. 27, 1953 [Aug. 27, 1952], No. 21582/52. Addition to 652,696, Class 87(2) In a process of the kind described in the parent Specification the polycellular moulding material is allowed to expand in a mould having a yielding wall. A shown, a. hydraulically-operated ram 21 co-operates with a mould 18 containing the mix and resists the expansion of the mix on heating to such a degree that only an expansion between 10 and 30 per cent of the original volume is permitted. The platens 20, 23 are heated by steam in passages 27, 28. In an example, a rubber mix is used comprising 100 parts of premasticated rubber, 1.5 parts of stearic acid, 5 parts of zinc oxide, 10 parts of sulphur, 0.4 parts of phenoxy guanidine, 12 parts of finely powdered azo-isobutyric acid dinitrile, as the blowing agent. The mould 18 was filled to the top and the ram 21 held down on it, being adjusted so that it would yield on a pressure of 500 kg./cm<2>. The whole was then heated to a temperature of 110‹C. when an expansion between 10 and 30 per cent of the original volume occured. The heating was then continued to cure the rubber, the mould cooled to atmospheric temperature and the moulded material removed from the mould when it expanded under atmospheric pressure and was heated again under conditions allowing it to expand more, the final volume being about ten times the original of the content in mould 18. Another example is given.