baber/WOPTO huggingface dataset:
Patent GB-136867-A (GB)
Title: Improvements in or relating to Means for Feeding Furnaces for Boilers and other purposes with Solid Fuel.
IPC: F23K1/04
Filed: 1918-11-20
Abstract: 136,867. Merz & McLellan, Michie, A. C., and Weeks, E. G. Nov. 20, 1918. Fuel, feeding; grates.- Apparatus for heating and drying fuel before it is fed to the combustion chamber of a furnace comprises a heating- chamber E containing an endless conveyer F on which the fuel is heated and dried by furnace gases which enter the chamber through the opening E<1> and leave through the outlet E<2>. The furnace gases first pass through an economizer or air-heater C to the flue D, and thence through the flue D<2> to the chamber E. A damper H<1> regulates the amount of gases passing to the chamber E. Instead of having two endless conveyers for heating and burning the fuel respectively, as shown in Fig. 1, a single conveyer may be used, the fuel being heated and dried on the front portion, which is enclosed in a chamber similar to the chamber E, and burnt on the rear portion arranged in the combustion chamber.
Patent GB-364085-A (GB)
Title: Improved apparatus for determining the nature of the sub-soil and for detecting the presence of minerals, metals or metalliferous deposits
IPC: G01V3/06
Filed: 1930-06-23
Abstract: 364,085. Prospecting for minerals. EDGE, A. B. BROUGHTON-, Australia House, Strand, London. June 23, 1930, No. 19120. [Class 37.] Apparatus for detecting or locating minerals &c. comprises means for instantaneously comparing phase and potential differences in respect of the currents flowing between any two pairs of three points in the region of exploration. Probes A, B, C are driven into the ground and connected so as to form two arms of a wheatstone bridge of which the other arms are formed by condensers C1, C2 and resistances R1, R2. The indicator may be a telephone D with or without an amplifier E. An alternating current of about 500 cycles per second is passed through the ground between distant electrodes (not shown). The resistances Rl, R2 and capacity Cl are adjusted until balance is obtained, the voltages V1, V2 being then proportional to the total impedances in the ratio arms, the difference of phase angle of these voltages being determined from the observed values of R1, R2, C1, C2 either by calculation or graphically by means of a sliding scale device. Curves of potential-phase variation may then be plotted on a chart, from which the conductivity of the subsoil at different places may be deduced. The resistances and capacities in the ratio arms may be in parallel instead of in series. In an alternative apparatus the probes A, B, C are dispensed with and search coils employed at the positions A, C. These are so connected that their electromotive forces are additive, the bridge connection B being connected to their junction. In this case the field may be generated by means of a loop of wire insulated from the ground and connected to a source of alternating current. The invention is also applicable to surveys in connection with underground workings, shafts, and bore holes.
Patent GB-335571-A (GB)
Title: Improvements in or relating to resilient seatings, mattresses or the like
IPC: A47C23/043
Filed: 1929-06-21
Abstract: 335,571. Leeson, G. W. T., and Sorbo Rubber-Sponge Products, Ltd. June 21, 1929. Mattresses. - In a seat or mattress, a flexible upholstering medium is superimposed on a sheet of flexible material, the under surface of which is attached by means of an adhesive to elements carried by the upper ends of springs otherwise independently mounted. Such a mattress is shown in the drawings comprising springs a carrying discs c of flexible fibre sheet which a.re stuck, by rubber solution, to a sheet i of rubber coated canvas. The superimposed upholstering material may be of hair, flock or, as shown, of laminations of sponge rubber f.
Patent GB-284640-A (GB)
Title: An improved sole plate for a laundry iron and the like and method of making same
IPC: D06F75/38
Filed: 1927-07-19
Abstract: 284,640. McArdle, M. W. Feb. 2, 1927, [Convention date]. Casting processes.-A hand-iron comprises a sheet metal base member A<1> having upstanding flanges A<2> the upper ends a<2> of which are bent over a filling member C to maintain the latter against vertical movement. The filling member may be formed by pouring molten metal into the sheet metal shell, tapped lugs B having previously been secured to the shell for the reception of the handle &c.
Patent GB-353204-A (GB)
Title: Improvements in or relating to metal-planing machines
IPC: B23D3/04
Filed: 1930-06-24
Abstract: 353,204. Planing-machines. OFFUTT, J. W., Ellwood City, Pennsylvania, U.S.A. June 24, 1930, No. 19255. Convention date, Jan. 11. [Class 83 (iii).] In a planing-machine particularly for cutting out defective portions of rolled blooms, billets, and the like, the work is clamped on the inclined face of a reciprocating table 3 associated with means for turning the work intermittently and the tool is movable radially of the work and also parallel to an inclined face thereof. The table is reciprocated by a hydraulic cylinder 5 or by other means and is provided with a work-holding face 8 inclined downwardly towards the operator. A pair of adjustable work-holding blocks 10, 12 are secured by bolts 13 to the table and have V-shaped recesses 14 to receive one corner of the work piece. The blocks have bearings for a rock-shaft 15 which is oscillated by a hydraulic cylinder 25 acting through a lever 28. The shaft 15 carries a clamping lever 17, and a pair of work-turning levers 19. A pair of dogs 22 pivoted on studs 23 are normally forced into engagement with the work by springs 24 and serve to prevent slipping back of the work during the turning operation. To turn the work, the cylinder 25 is operated to release the clamp 17 and cause the levers 19 to raise the work. The dogs 22 then slip under the lower corner of the work so that on descent of the levers 19 the work is rotated through 90‹ and again clamped by the lever 17. The tool-head B is movable along inclined guides 30 by means of a screw 38 operated by worm gearing 40 from an electric motor 42, and the head B is fitted with a cross slide 32 carrying a tool 32a and fed by a screw 33 operated by worm gearing 34 from a second electric motor 37. The hydraulic cylinder 5 is controlled by a pedal and the electric motors by suitable controllers. In a modification, Fig. 5, the tool comprises a bit 51 welded to a shank 50 mounted on the plate 32. A pivoted lever 59, carrying a pilot roller 60 engaging the surface of the work in front of the tool, carries bridging contacts 61 coacting with contacts 57, 58, of circuits controlling the forward and reverse movements respectively of the depth feed motor 37. The contacts 57, 58 are carried on a slide 53 which may be operated by a hand-lever 55. In operation the tool is moved into position by manual operation of the slide 53 which is then returned to normal. If the roller 60 engages irregularities in the work the lever 59 is moved to bridge contacts 57, 58 and so automatically control the depth of cut. In a further modification, Fig. 6, a double acting holder 64 carries tools 68, 69 and oscillates about a pivot 65 between abutments 66, 67.
Patent GB-734246-A (GB)
Title: Improvements in and relating to cases or holders for toothbrushes
IPC: A46B17/04
Filed: 1953-07-10
Abstract: 734,246. Tooth-brush holders. GRANDVAL, R. July 10, 1953 [July 11, 1952], No. 19262/53. Classes 52 (5) and 131. A tooth-brush case formed as a one-piece moulding has a hollow body with an entrance aperture 20, flexible closure flaps 21, 22 extending partly across the aperture being sufficiently rigid to support the brush after it has been inserted by pushing aside the flaps. The case may be of plastic having strengthening ribs 16, 17, 18, 32 and may be used to transport the brush or to suspend it in a rack. Ventilating apertures 33, 34 are provided and the flaps may be recessed at 23 to permit passage of the brush handle.
Patent GB-1167206-A (GB)
Title: Torque Converters.
IPC: F16H61/60
Filed: 1967-04-27
Abstract: 1,167,206. Hydrodynamic torque converters. FORD MOTOR CO. Ltd. 27 April, 1967 [2 May, 1966], No. 19355/67. Heading F2C. In a hydrodynamic torque converter having an impeller (22), a turbine (36), and a reactor (48), (Fig. 1, not shown), the reactor comprises two parts 50, 52 secured together, each including a hub portion 54, 64 carrying blade elements 62, 66, the nose 90 of each blade element 62 closely engaging a recess 92 in the rear of a respective blade element 66 to form a single blade. Alternative parts 52 having different blade element forms may be combined with the part 50 to give different converter characteristics. The parts 50, 52 have interengaging projections 86 and recesses 88. The hub portions are splined to the outer race (60) of a oneway detent. Inwardly extending flanges 56, 70 of the hubs form thrust rings to axially locate the reactor. Radial passages 84, 82 in the flanges form fluid supply and discharge lines for the torus. Reactor parts 50, 52 are die cast in aluminium or plastics, using axially movable dies. Plastics parts may be bonded together.
Patent GB-829639-A (GB)
Title: Process of removing rare earths from aqueous uranium solutions
IPC: C01G43/00
Filed: 1955-07-05
Abstract: Rare earth values are separated from uranium values in an aqueous solution by contacting the solution with an inorganic water-insoluble fluoride; the rare earths are adsorbed by the fluoride and the uranium remains in solution.  Suitable fluorides are calcium fluoride, e.g. fluorite, rare earth, e.g. lanthanum, fluorides, and thorium fluoride.  The aqueous solution may be at a temperature of 25 DEG  to 300 DEG  C. and may be acidified before contact with the fluoride.  The process is especially suitable for treating a solution of uranyl sulphate in deuterium oxide which has been used in a nuclear reactor, but may also be applied to uranium solutions obtained from ore processing.  In examples, rare earths including cerium and yttrium are separated from uranyl sulphite solutions containing sulphuric acid.
Patent GB-151781-A (GB)
Title: Explosive shell
IPC: F42B12/20
Filed: 1919-08-06
Abstract: 151,781. Ward, E. S. Aug. 6, 1919. Pyrotechnic devices.-An illuminating or signalling flare for use in an explosive projectile and adapted to be ignited by the explosion of the charge 18 of the projectile is made in the form of a dart and comprises a Roman candle 44 ignited by the explosion of the charge 18 of the projectile, an illuminating charge 43 ignited by the Roman candle 44, a cork or other buoyant body 42 for keeping the device afloat if it falls in to water, a tubular stem 45 with enlarged and weighted end 46 containing an explosive charge fired by the illuminating charge 43, and a spike 47 for entering the soil on which it falls.
Patent GB-154282-A (GB)
Title: Improved process for building up undersized parts of machinery
IPC: C25D5/02
Filed: 1919-08-06
Abstract: 154,282. Coles, S. O. Cowper-. Aug. 6, 1919. No patent granted (Sealing fee not paid). Drawings to Specification. Cylinders.-Worn cylinders are repaired by the electro-deposition of iron. The deposit may be regulated to the required thickness, or may be ground to gauge afterwards. It may be annealed, converted into steel by cementation, and hardened by quenching or case-hardening, or may be utilized without such treatment. Reference has been directed by the Comptroller to Specifications 11393/89, 15524/00, 28746/10, 16565013, 8795/14, and 116,509, [all in Class 41, Electrolysis].
Patent GB-986343-A (GB)
Title: Improvements in the control of microbiological processes
Inventor: JOHNSTON ROY HARRY WILLIAM
IPC: C12M1/26
Filed: 1961-05-30
Abstract: In a continuous fermentation of, for example, brewers' wort by yeast in which reaction conditions in a first vessel to which unfermented wort is fed, will encourage the proliferation and growth of the yeast whereas conditions in the subsequent vessel or vessels (such vessels may be series, parallel or series-parallel connected) are such that the growth of yeast is discouraged and fermentation of the end product, beer, is encouraged, a variable proportion of the unfermented wort is introduced into a vessel other than the first in order to vary the dwell-time of wort in the first vessel without changing the total inflow into and total outflow out of the system.
Patent GB-1269864-A (GB)
Title: Improvements in or relating to echo traps
IPC: H04B3/21
Filed: 1970-04-23
Abstract: 1,269,864. Echo suppressors. SIEMENS A.G. 23 April, 1970 [24 April, 1969 (4)], No. 19449/70. Heading H4R. An echo suppressor has a number of filters of contiguous frequency bands arranged in the transmit path with adjusting elements controlling the effectiveness of the filters, for removing part of the transmitted frequency band, in accordance with the level of the signal in that part of the frequency band in the receive path. As shown in Fig. 1 parallel fillers 10a-10n in the transmit signal path have gain controlling elements 11a-11n in series controlled by the outputs of a similar set of filters 4a-4n connected to the receive path. A speech detector 7, 8, connected to the receive path, either direct or via the filters, is arranged to operate a relay and by-pass the filter system in the transmit path if no speech is detected in the receive path. A delay circuit 9 is provided between the point of connection of the filters in the receive path and the filters in the transmit path to ensure the transmit filters being adjusted to the required condition when the signal reaches them. Alternatively a delayed relay (V) may be utilized to switch in the filters Fig. 2 (not shown). Instead of using parallel connected filters the filters may be connected in series with variable shunts, in which system each filter may be constructed as three similar series connected filters with separate shunt circuits providing a better range of control. An alternative embodiment, Fig. 5 (not shown), uses comparators which compare the signal level at the output of the filters in the receive channel with the signal level at the output of the corresponding filters in the receive channel to derive control signals for the gain controlling elements. A signal level detector is also connected to the receive signal path to vary the control threshold of the comparators. In this system the receive path may include the filters and a series switch which is opened in response to the comparator detecting no significant signal in the received signal at the frequency passed by the filter, Fig. 6 (not shown). Reference has been directed by the Comptroller to Specification 1,207,368.
Patent GB-1060829-A (GB)
Title: Coating metal surfaces
Inventor: HENDRIKS EVERARDUS HENDRICUS
IPC: B22F7/04
Filed: 1964-05-11
Abstract: A process of coating a metal strip comprises first applying an adhesive to the strip then a layer of metal particles one significant particle thick, the particles being bonded to the strip by a sintering step, a coating powder containing spherical metal particles which are too large to fill the interstices of the sintered layer is then applied to the sintered layer followed by a compaction step to cold weld and deform the sintered metal layer so that the compacted powder is retained between the deformed sintered particles. According to Fig. 1 (not shown), adhesive applied to strip (1) by spray gun (2) is dried at (3).  Metal powder is applied at (4) and excess powder is removed by vibrator (5).  A magnetic field may be applied to the metal powder at (4) to align the particles.  Sintering is effected in a nitrogen-hydrogen mixture in furnace (6) and the strip is cooled at (7).  The coating powder containing Cn or Ni particles is applied at (8) and the excess powder removed by the Cn or Ni particles is returned to the powder applicator (8).  The coated strip is then rolled at (10).  The compacted strip may be further sintered.  The metals mentioned in addition to Cn and Ni are Al, Ti and Fe.  In the case of Ti sintering is effected in an inert gas or vacuum.
Patent GB-234678-A (GB)
Title: Improvements in machines for forging or sharpening rock drills
IPC: B21K5/06
Filed: 1924-08-18
Abstract: 234,678. Marks, E. C. R., (Ingersoll- Rand Co.). Aug. 18, 1924. Pistons (main) acting as sole valves.-A pneumatic tool p forming part of a rock-drill sharpening machine has a. supply port o, the subsequent reciprocation of the hammer-piston being automatic.
Patent GB-1360964-A (GB)
Title: Laying of underground beds or strips of porous material
IPC: F16L1/032
Filed: 1971-07-19
Abstract: 1360964 Drainage and irrigation HUDSWELL BADGER Ltd 19 July 1971 [23 April 1970] 19568/70 Heading A1B [Also in Divisions El and F2] An apparatus combination of a mole plough 12, granular fill-supplying means 19, 23, and preformed permeable tube or permeable conduit-forming material-supplying means 20 permits of the installation in the cavity formed in the ground as the plough is forced through the ground of a permeable tube or conduit surrounded by granular fill, the tube or conduit permitting of drainage, irrigation, or warming of the surrounding soil. The configuration of the mole plough may be such as to form in the ground a vertically elongated cavity, or a horizontally elongated cavity or a V-shaped cavity, a vertically pivotable foot may be provided on the mole plough to allow of powered, vertical steering of the plough. The granular fill can be fluidised in its passage through one or more ducts extending through the mole plough when the fill comes into contact with one or more compressed air jets directed into the duct(s).
Patent GB-320113-A (GB)
Title: Improved process for the production of esters
IPC: C07C69/22
Filed: 1928-07-06
Abstract: 320,113. Holzverkohlungs-Industrie Akt.-Ges., and Fuchs, O. July 6, 1928. Addition to 295,275. Esters.-The process of the parent Specification is modified by the omission of the catalysts, the reaction being carried out at temperatures above 100‹ C. e.g. 150‹-250‹ C. under pressure and the ester being continually removed, for example by distillation. In an example, 10 per cent acetic acid is heated with methanol in a pressure boiler to a temperature of 150‹-155‹ C., corresponding to a pressure of 8-9 atmospheres. The ester vapours distil over and are condensed. The esterification of the last traces of acid can be accelerated by a moderate increase of temperature and pressure; according to the speed of the distillation, only 0.2 to 0.62 acetic acid remain in the residue. A continuous process is also described.
Patent GB-1469488-A (GB)
Title: Granular flow sensing and switching device
IPC: G01P13/00
Filed: 1975-04-29
Abstract: 1469488 Sensing granular flow F A CHANDLER and T H BARNES 29 April 1975 [4 May 1974] 19683/74 Heading G1G [Also in Division H4]  The flow of grain, e.g. in an elevator or conveyer, is detected by means of the acoustic signal produced when the grains impinge on a probe 6. The probe is coupled to a microphone 5 which converts the acoustic signal to an electrical output. This output is amplified and fed to a monitoring oscilloscope; also to a diode pump circuit which turns on a transistor switch when a threshold flow rate is exceeded. The switch actuates a timer or visual indicator. The microphone mounting  includes cases 1, 3 and vibration-absorbent material 2, 4.
Patent GB-459539-A (GB)
Title: Improvements in cathodes for thermionic tubes
IPC: H01J1/14
Filed: 1935-07-10
Abstract: In a cathode for a thermionic tube having a metallic carrier with an emissive layer, the carrier is made of an alloy of one or more of the metals copper, silver, and gold and up to 10 per cent of one or more of the metals nickel, cobalt, platinum, iridium, osmium, ruthenium, rhodium, and palladium.  A deoxidizing agent such as calcium, silicon, or calcium boride may also be present. The alloy may be made by melting the constituents together, preferably in vacuo or in an inert gas, or by coating the copper &c. with the additional metal and heating to effect the alloying either before or after introduction into the tube, during or after exhaustion, or before or after the application of the emissive layer.  An example consists of copper with 0,1-5 per cent of nickel.
Patent GB-752287-A (GB)
Title: Improvements in a filter for separating minute particles of matter suspended in a fluid
IPC: B01D39/16
Filed: 1954-07-06
Abstract: A fluid filter medium comprises a felt or mat of irregularly packed fibres having an average diameter not exceeding 0.001 mm. The mat, which is formed by spraying molten thermo-plastic material, e.g. polystyrol, under high pressure over a suitable collecting means, may afterward be compressed mechanically.  The fibres may have knots and flat spiral and irregular sections at different points along their lengths.
Patent GB-801431-A (GB)
Title: Improvements relating to lamp housings
Inventor: SHERWOOD ERNEST JOFFRE
IPC: F21V7/22
Filed: 1954-07-07
Abstract: 801,431. Lamp shades. SIMPLEX ELECTRIC CO., Ltd. July 7, 1955 [July 7, 1954; Oct. 23, 1954], Nos. 19844/54 and 30585/54. Class 75(2) A lamp shade, bowl, globe, trough or like lamp housing comprises a shell of thermoplastic such as polyvinyl chloride or other synthetic resin shaped by moulding or deformation e.g. from sheet-form or such as styrene-butadine injection moulded, having one or more stiffening rings, ribs or similar skeleton-like reinforcing members e.g. of mild steel or other material such as brass or aluminium alloy embedded in the shell material or secured or united therewith continuously as in the case of the steel ring to protect it from the atmosphere or at a plurality of spaced positions as in the case of brass or aluminium rings which require no protection, so as to preserve the shell against distortion from its intended shape due to heat. As shown, a ring member 15 extends round an aperture 14 in the upper part of the shell, through which aperture the lamp and its suspension wire depends and supports the lamp housing by a suspensory fitting engaging the edge 14, as described in Specification 801,432. The ring 15 is embedded in the shell material by beading 16, Fig. 2, or a marginal portion 19, Fig. 3 of the laminated shell bordering on the aperture 14 may be folded over the ring and secured while temporarily softened by heat produced locally as by high frequency dielectric heating or the ring may be covered by a fillet 20. Fig. 4, formed of the same material as the shell or of different material capable of being secured to the shell by fusion or by adhesive. In the case of an injection moulded shell, the portion of the part of the shell containing the reinforcing member is of enlarged section. The laminations 17, 18 of the shell 11 shown in Fig. 3 are preferably of different colours, e.g. white or cream on the inside 18 and grey on the outside 17.
Patent GB-771267-A (GB)
Title: A fuel filter having a replaceable filter pack
IPC: B01D35/153
Filed: 1955-07-08
Abstract: 771,267. Filters. KNECHT, A. July 8, 1955, No. 19859/55. Class 46. When a thumbscrew 5 is unscrewed and a housing cover plate 2 is raised to remove a filter pack 1, a compression spring 19 bearing at the bottom against a threaded bush 8 raises a sleeve 17 sliding within a collar 7 until the upper end 22 of the sleeve comes into contact with a stop 13 on a part-hollow central stem 4. In this position the sleeve 17 prevents flow of liquid through holes 12 into the hollow part of the stem 4 and out through the bush 8. A rubber washer 15 inserted into the central hole of the lower cover plate 14 of the filter pack 1 fits over a contracted neck portion 16 of the sleeve 17. The filter pack 1 comprises a generally-tubular paper element pleated to a star-shaped crosssection.