baber/WOPTO huggingface dataset:
Patent GB-666223-A (GB)
Title: Improvements in fluid heater cleaners
IPC: F28G3/16
Filed: 1948-08-05
Abstract: 666,223. Soot blowers. BABCOCK & WILCOX, Ltd. Aug. 5, 1948 [Aug. 5, 1947], No. 20668/48. Class 99 (ii) A tube 80 having a discharge nozzle 98 is axially projected and retracted within a rotatablymounted tube 46 by a screw-device, which may comprise a helical key 84, of a rotatable nut 72, engaging in a groove 82 of tube 80, rendered effective by restraining means, such as the shoulder 134 of a flange 114 secured to tube 46 and engaging a stop 136 of a pivoted trigger 124, Fig. 3, that prevents rotation of tube 46 which, when tube 80 is in the projected position, is freed by release means, such as a latch 140 bearing against the shoulder and carried by the trigger, so that both tubes rotate together. Associated with the tubes are valve means 28 for controlling the supply of cleaning fluid to the tubes.- The nut may be rotated by gears 108, 110 connected to a manually-operated or motordriven chainwheel 102. During projection and retraction, tube 80 may be prevented from rotating by keys 90, 92 of tube 46 engaging in longitudinal grooves 86, 88 of tube 80. As the projecting movement of tube 80 is completed a member 158 of the tube abuts the keys, which may be initially separated from the nut by a space, to axially shift the tube 46, the flange carrying the latch against the action of a spring 144 until the shoulder is disengaged from the stop to permit the tubes to rotate in unison. A cam 120 carried by the flange operates the trigger that actuates, through a spring-loaded stem 30, the valve, so that cleaning fluid is admitted to and during each revolution of the tubes. In a modification, the latch is eliminated and a compression spring encircling tube 46 replaces spring 144.
Patent GB-606675-A (GB)
Title: Improvements in coaxial-line circuits and oscillators or wavemeters incorporating such circuits
IPC: H01P7/04
Filed: 1945-08-11
Abstract: 606,675. Electric resonators. GOODALL, M. C., and WRIGHT, C. S. Aug. 11, 1945, No. 20691. [Class 40 (viii)] [Also in Groups XXXVI and XL (a)] A coaxial resonator 1, 2, .for use in combination with a disc-seal valve in an oscillator, wave-meter .or mixer unit is provided with an annular tuning plunger 5 which is out of contact with the conductors 1, 2, and is provided with cavities 14, 15, Fig. 4, such that it acts as a band-stop filter section of pi type. The length of cavity 14 is a quarter of a wave-length at the mid-band frequency, and that of cavity 15 is half a wavelength. at the highest frequency. Cavity 14 may be coated with lossy material such as lamp black protected by cellulose acetate. The wall of cavity 15 may be longitudinally slotted at 18 to prevent circumferential oscillations, or the diameters of the conductors may be chosen to have that effect. The length l1, is such as to reject the three-quarter wave-length at the lowest frequency, and the length l2 is short eriough to prevent discontinuous changes of frequency at the highest frequency. Fig. 1 shows the setting for the highest frequency, at which a resonant cavity 35 remains and the plunger 5 can be adjusted to the left, so as to provide a coaxial resonator, by turning the screw 9 which pulls the fork 6 carrying the plunger 5. The inner conductor 1 is adapted to receive a reflex-klystron valve, Fig. 7 (not shown) with disc seal electrodes which make contact with convex spring fingers 3, 25 on the inner and outer conductors respectively. In a wave-meter, Figs. 5, 6 (not shown), the righthand end, Fig. 1, of the oscillator is slotcoupled to a rectangular wave-guide and so to a crystal or other detector, which may be matched by means of a tunable coaxial line, similar to that shown in Fig. 1 and mechanically coupled thereto.
Patent GB-380887-A (GB)
Title: Improvements in and relating to the production and maintenance of a constant gas pressure in closed systems
IPC: B01D3/00
Filed: 1931-07-21
Abstract: <PICT:0380887/IV/1> The Specification as open to inspection under Sect. 91 (3) (a) describes an apparatus for the continuous production of acetic acid from acetaldehyde and oxygen, with means for maintaining the gas pressure in the system constant.  Acetaldehyde is supplied to a reaction vessel t through a pipe r and a gas containing oxygen through a compressor k.  Vapours from the vessel t pass by a pipe u<11> through washing vessels v, v<1> down which pass streams of crude acid drawn from the vessel t through a cooler w to a collecting vessel x and thence raised by a pump y to an overhead vessel x<1>. The vapours pass through an additional washing column v<11> and excess of gas escapes through a pressure-regulating device z consisting of two liquid columns connected in series.  This subject-matter does not appear in the Specification as accepted.ALSO:<PICT:0380887/III/1> <PICT:0380887/III/2> A constant gas pressure is maintained in closed systems, e.g. distillation plants, by bringing the system into communication with a second system independent thereof in which a gas <PICT:0380887/III/3> stream is produced in known manner and maintained under constant pressure. Acetaldehyde is rectified under a pressure of 2 atmospheres in a column a surmounted by a rectifying column b and dephlegmator c, the vapour passing to a condenser d, cooler e, and collector f, a further condenser g being provided for condensing vapour from d, e.  The vessels d, e, g, f are connected by a pipe h to a system in which gas is maintained under constant pressure by feeding it from a rotary compressor k to a regulator comprising two liquid columns i, i<1> by which the pressure is controlled by regulating the liquid level or the specific gravity of the liquid.  In Fig. 2 the pressure in a system l is regulated by feeding gas from a holder n by a pump k, the pressure of the gas being controlled by a valve m loaded by a weight. The Specification as open to inspection under Sect. 91 (3) (a) describes also an apparatus for the continuous production of acetic acid from acetaldehyde and oxygen.  Acetaldehyde is supplied to a reaction vessel t, Fig. 5 (Cancelled), through a pipe r and a gas containing oxygen through a compressor k. Vapours from the vessel t pass by a pipe u<11> through washing vessels v, v<1> down which pass streams of crude acid drawn from the vessel t through a cooler w to a collecting tank x and thence pumped to an overhead tank x<1>.  The vapours pass through an additional washing column v<11> and excess of gas escapes through a pressure-regulating device z consisting of two liquid columns connected in series.  This subject-matter does not appear in the Specification as accepted.
Patent GB-205601-A (GB)
Title: Improvements in and connected with flower vases, art pots, and the like articles
IPC: C04B41/81
Filed: 1922-07-31
Abstract: 205,601. Warneford, W. F., and Warneford, M. E. July 31, 1922. Ornamenting.-Flower vases, art pots and like articles of pottery, wood, or metal are ornamented by stones secured by cement in recesses formed in the article. In the case of pottery the recesses may be formed during the manufacture of the article, such as by pressing a stone into the soft clay, or may be drilled after the firing. Reference has been directed by the Comptroller to Specifications 13577/89, 20936/99, 7770/00, [Class 52, Furniture &c.], and 8612/00.
Patent GB-858496-A (GB)
Title: Method of producing alkyl borate esters
IPC: C07F5/04
Filed: 1959-06-18
Abstract: An alkyl borate ester is made by contacting a solution comprising an alcohol of 1 to 4 carbon atoms, and a boron source soluble in this alcohol, with a water-immiscible solvent whose density differs from the density of this solution sufficiently to allow a phase separation, and removing the water-immiscible solvent, with the alkyl borate ester in solution in it.  The term "boron source" means boric oxide, boric acid, borax and a mineral acid or a borate-containing ore and a mineral acid.  The alkyl borate ester may be separated from the solvent by distillation.  The process is applicable to continuous operation where the alcohol and boron source are fed into an extraction apparatus with solvent, the solvent containing dissolved ester is fed to a distillation apparatus where the ester is distilled off and the stripped solvent is recycled to the extraction apparatus. Suitable solvents are kerosene, naphtha, mineral oils, liquid paraffins, cyclo-paraffins or halogenated derivatives thereof and mixtures thereof.
Patent GB-1243001-A (GB)
Title: Conveyors
Inventor: HASLAM JAMES FIRTH
IPC: B65G23/00
Filed: 1967-07-26
Abstract: 1,243,001. Roller conveyers. STEWARTS & LLOYDS Ltd. 22 July, 1968 [26 July, 1967; 2 May, 1968], Nos. 34455/67 and 20970/68. Heading B8A. [Also in Division H2] A tube 12 of magnetic material is supported on freely rotatable rollers 10 each having a peripheral recess 11 corresponding to the tube diameter, the tube being propelled longitudinally by a linear induction motor stator 14 having a core 15 with a longitudinal recess 17 which also corresponds to the tube diameter. A uniform air gap is thus provided between the tube and the stator. For conveying tubes of various sizes the rollers and the core may be formed with V- shaped cross-sections, Fig. 3, and in Fig. 5 (not shown), the sides of the V-shaped cross-sections are at 45 degrees to accommodate rectangular cross-section tubes. A switching arrangement, Fig. 6 (not shown), ensures that a three-phase supply is connected only when a tube is supported by both rollers. Further, the stator is deenergized as soon as the tube moves away. Limit switches (46) may be replaced by proximity switches. In Fig. 7 (not shown), the tube is sensed electromagnetically by two open-core transformers (56). A number of stators may be controlled by a common signal. The feeding of bars to a furnace is specified.
Patent GB-239503-A (GB)
Title: Electro-magnetic device producing a sustained intermittent movement
IPC: H02K7/065
Filed: 1925-08-21
Abstract: 239,503. Soc. Anon. des Etablissements TÚcalÚmit, (Assignees of Epitaux, A.). Sept. 2, 1924, [Convention date]. Electromagnets; reciprocating and oscillating machines.-An electromagnetic device consists of a magnet with two movable armatures each normally held away from the magnet by a spring and each provided with a contact piece adapted to close the exciting circuit when the pieces are in contact, one piece being fixedly secured to one armature which operates a ratchet wheel and the other piece being yieldingly mounted on the second armature the weight of which assists its movement towards the magnet. In the form shown, the magnet core 1 has two pivoted armatures 3, 4 of large and small inertia respectively normally held away from the core by springs 9,. 12. The magnetic circuit is completed by a fixed yoke 5 carrying an insulated screw 13 which acts a stop to the tail of the armature 4. This armature carries, on a spring 11, a contact piece which co-operates with a second contact on the tail 10 of the armature 3. An extension 6 of this armature carries a pawl operating a wheel 8. When the slow-moving armature 3 reaches the end of its travel away from the core, under the action of the spring 9, the contacts are closed and the core is energized. Both armatures are attracted and the upper one 4, owing to its greater speed, keeps the contacts closed until the slowmoving one moves to its uppermost limit and opens them. The upper armature is then moved sharply by the spring 12 until stopped by the screw 3 and the spring 9 again initiates the cycle which is continuously repeated thereafter. The Specification as open to inspection under Sect. 91 (3) (a) states also that the attraction of the second armature may be produced by a flux derived or separate from that of the main flux of the magnet. This subject-matter does not appear in the Specification as accepted.
Patent GB-1044934-A (GB)
Title: Improvements in or relating to taximeters
IPC: G07B13/00
Filed: 1965-05-18
Abstract: 1,044,934. Taximeters. KIENZLE APPARATE G.m.b.H. May 18, 1965 [May 20, 1964], No. 21008/65. Heading G4T. The distance drive-shaft 22 (Fig. 2, not shown), of a taximeter carries two eccentric cams 71, 72 angularly displaced 180 degrees and co-operating with levers 25, 26 whose opposite ends are guided in slots 29, 30 in the driving parts 46, 47 of one-way clutches for driving the time and distance shaft 13. The tariff may be varied by rotation of a control function key 45 (Fig. 1, not shown), to rotate a shaft 41 (Fig. 2), geared thereto and bring one of several different cams 38, 39, 40 in contact with a lever 37, thus changing the position of pins 27, 28 in slots 29, 30. A cam with different radii may replace the several different cams to provide an infinite variety of tariffs. Rotation of the function control key 45 to a " For Hire " position rotates a cam 61 such that an indent co-operates with a lever 58 which disengages the clutch 20, 21 to prevent the drive 56 operating the shaft 22. The time and distance shaft 13 carries a cam 15 which drives a cam 12 to raise and lower an arm 10 with a ratchet 9 for driving the fare-indicating drums.
Patent GB-1519940-A (GB)
Title: Self generating halogen liquification in a secondary battery
IPC: H01M10/44
Filed: 1977-05-19
Abstract: 1519940 Metal halide secondary cells ENERGY DEVELOPMENT ASSOCIATES 19 May 1977 [11 June 1976] 21096/77 Heading H1B A metal (Zn) halide secondary cell has two separate paths for the flow of the electrolyte separated by a perm-selective membrane 22. The paths are between membrane 22 and graphite electrode 14, and in at pipe 9 out at hole 27, through porous Zn electrode 17, and out through holes 25 and pipe 9. The electrolyte flow system is arranged to balance the pressure of the two electrolyte paths. It is stated that the arrangement allows the halogen gas evolved during charging to be liquified at ambient temperatures due to the pressures developed. Arrangements are described for providing turbulent flow of the electrolyte (Figs. 3 to 5, not shown).
Patent GB-1505901-A (GB)
Title: Mass or heat transfer using disturbed flow to create convective vortices
IPC: A61M1/36
Filed: 1975-05-19
Abstract: 1505901 Membrane apparatus JOHNSON & JOHNSON 19 May 1975 [24 May 1974 13 May 1975] 21183/75 Heading B1X [Also in Division F4] Apparatus for effecting heat or mass transfer between two fluids, comprises a first conduit for flow of one fluid, a second conduit for flow of another fluid, a heat or mass transfer membrane forming at least a portion of a common wall of the two conduits, the configuration of at least a portion of the first conduit varying periodically along the general direction of flow to define a multiplicity of zones having a ratio of pitch to depth of at least 2:1, and a pump capable of producing a pulsatile flow of low amplitude fluctuation, (defined as fluctuations in which the flow is not reversed), compared with the mean flow rate, of the fluid through the first conduit at such velocity as to provide a Reynolds number, (where U=velocity of fluid, v=kinematic viscosity and p=hollow pitch, i.e. distance between ridges), of at least 200 to induce a component of motion in the conduit which is mutually orthogonal to the surface of the membrane and the general direction of flow. In one embodiment (Fig. 3) a transfer membrane 23 of circular cross section forms a conduit 24 for flow in the direction A, with constructions 25 along its length which space zones, in the form of circumferential furrows 26, one from another. The apparatus is envisaged for use in the dialysis or oxygenation of blood, in reverse osmosis and for heat exchange.
Patent GB-995846-A (GB)
Title: Transistor oscillator
IPC: H02M7/538
Filed: 1961-06-13
Abstract: 995,846. Inverting. GLOBE INDUSTRIES Inc. June 13, 1961 [June 17, 1960], No. 21309/61. Heading H2F. [Also in Division H3] The operating frequency of a pushpull transistor inverter oscillator of the type comprising an output transformer and a saturating timing transformer is maintained constant with changes in supply voltage by means utilizing a control voltage derived from the output transformer which maintains the voltage across the timing transformer constant. In the driver stage of the inverter shown, changeover of the conductivity condition of the main transistors 110, 118 occurs each time the feedback transformer 156 saturates. The time for the current to build up and thus the operating frequency is maintained constant by a limiter circuit 152 comprising two diodes connected to the outer ends of the winding 155 and biased by a Zener diode connected in series with a control voltage obtained from a rectifier 144, the latter producing a voltage which varies with the supply voltage and which offsets the small increase in Zener diode voltage which occurs as the current through it increases. The output transformer 124 may be arranged to saturate before the timing transformer so that the width of output current pulse decreases with increasing supply voltage. Series transistors 190, 200 are normally saturated when the associated main transistor is conductive but become non-conductive to limit the transformer current when the output transformer saturates. The oscillator feeds a driven stage 302 which supplies a motor 300. In Fig. 1 (not shown), the limiter is connected across the primary winding of feedback transformer connected across one half only of the output transformer.
Patent GB-202161-A (GB)
Title: Improvements in or connected with machines for balling yarn, thread, twine and such like
IPC: D01H1/36
Filed: 1922-08-04
Abstract: 202,161. Baines, E. N., and Schmidt, J. W. Aug. 4, 1922. Balling-machines.-In machines of the semiautomatic type, for balling yarn, thread, twine, and the like the flyers are set for the ending- operations by fully actuating a treadle i or a hand-lever, which, as shown in the figure, operates a ratchet-wheel e on the spindle-wheel shaft c by means of a pawl j. The ratchet-wheel is providad with teeth which correspond in number with the gear ratio of the spindle-wheel shaft and flyer spindle, and the flyers are each adjusted so that they are in the correct position when the pawl is fully operated. The pawl is normally withheld by a cam m and is carried on a piece g connected to the treadle by a rod h. The piece g is provided with a surface g<1>, which, when the treadle is fully operated, releases a check-pawl o to arrest the ratchet-wheel. Specifications 9357/02 and 7519/10 are referred to.
Patent GB-517136-A (GB)
Title: Improvements in or relating to the manufacture of binding agents of the portland cement type
IPC: C04B7/02
Filed: 1938-07-19
Abstract: 517,136. Portland cement. BERGINSPEKTION RUDERSDORF ZWEIGNIEDERLASSUNG DER PREUSS. BERGWERKSUND HUTTEN-AKT.-GES. July 19, 1938, No. 21422. Convention date, July 19, 1937. [Class 22] In making Portland cement, the raw materials are mixed in such proportions as to give a ratio of the quantity of silica to the total quantity of alumina and ferric oxide (silicate modulus) which lies between 1.75 and 2 and is preferably 1.9, and a ratio of alumina to ferric oxide (alumina modulus) which lies between .7. and .9 and is preferably .8. The source of the ferric oxide may be a low grade iron ore rich in gangue. A small proportion of gypsum may be added to the cement.
Patent GB-947507-A (GB)
Title: Production of photographic prints
Inventor: NEALE DENNIS MANKTELOW
IPC: G03B27/73
Filed: 1961-06-14
Abstract: 947,507. Photographic colour printing. ILFORD Ltd. June 7,1962 [June 14, 1961], No. 21474/61. Heading G2C. In printing multicolour photographic transparencies by projection on to photosensitive print material at least two colour selective filters are successively interposed in the path of the printing light according to a repetitive cycle which is repeated at least ten times, the duration for which each filter is operative being separately controlled by electrical impulses. It may be the time alone or the time-intensity product which is repeated for each colour in each cycle. Control may be effected by an electronic process time circuit as described in Specification 656,275 which is preferably operated to time each exposure to red, green and blue light in inverse proportion to the third, fourth and fifth powers respectively of the supply voltage. Alternatively a photoelectric integrator such as described in Specification 791,161 may be used whereby the proportions of the times of exposure to each colour is in accordance with the proportions of those colours passing the transparency. Specifications 824,977 and 902,312 also are referred to.
Patent GB-421519-A (GB)
Title: Process for the production of aqueous, positively charged emulsions
IPC: B01F3/08
Filed: 1934-07-23
Abstract: In the manufacture of positively charged aqueous emulsions, the substance to be emulsified, the aqueous solution of an organic protective colloid, and the aqueous solution of an electrolyte which confers the positive charge are run simultaneously from separate sources into a homogenizing apparatus in the proportions which are required in the product.  Examples describe the preparation of emulsions of hard paraffin, coco-nut oil, olive oil, and benzol respectively.  Specified protective colloids are glue, gelatine, and dimethylcellulose.  Specified electrolytes are formic acid, aluminium formate, hydrochloric acid and aluminium sulphate.
Patent GB-601114-A (GB)
Title: Improvements in or relating to chlorinated products of carboxylic acid esters
IPC: H01B3/18
Filed: 1944-11-03
Abstract: A chlorinated carboxylic ester having at least 12 carbon atoms in the carboxylic acid chain, prepared by chlorinating in solution to at least 40 per cent chlorine content, and separating the solvent by exposure to an inert liquid with vigorous agitation to give a powdery product, is used as a pour point depressor for lubricants.  Various fatty oils, fats, waxes, and synthetic esters are treated.ALSO:A solution of a carboxylic ester having at least 12 carbon atoms in the carboxylic acid chain is chlorinated with chlorine gas in the presence of actinic light to at least 40 per cent chlorine content by weight, and the solvent separated by directly exposing the solution in a form having a large surface area, with vigorous agitation, to the action of an inert liquid to separate the chlorinated product in a powdery form substantially free from solvent and hydrogen chloride. Fatty oils, either drying or non-drying, e.g. linseed, soya bean, cottonseed and corn oils, synthetic esters wherein the carboxylic acid includes a straight chain of at least 12 carbon atoms with or without a ring as in naphthenic acids, and such materials as stearin, tallow, lard and ester type waxes may be used.  The fatty oils may be pretreated as by bodying, blowing or oxidizing.  Other components may be present, e.g. beeswax.  The chlorinated products are easily soluble in many solvents, and can be made soluble in others by adding small amounts of aromatic solvents such as toluene.  They have high tolerance ratios for non-solvents.  They are used for surface coatings, flame - proofing agents, adhesives, binders, electric insulation and pour point depressors in lubricants.  The chlorination is effected using solutions of below 50 per cent concentration to a chlorine content preferably above 55 per cent, and the product churned, for example, in methyl, ethyl or isopropyl alcohol, or a mixture of alcohol and water, or added to boiling water to separate the chlorinated product in powdery form. In examples, solutions in carbon tetrachloride, chloroform or dichlorethane are chlorinated in the presence of light and the products churned in several successive batches of methanol or added to boiling water.  Various vegetable and fish oils, fats, waxes and synthetic esters are used.  Examples showing the tolerance of the products for mineral spirit are also given. Specification 420,116 is referred to.  The Specification as open to inspection under Sect. 91 comprises also separation of a powdery product by spraying the chlorinated solution into a warm atmosphere.  This subject-matter does not appear in the Specification as accepted.