baber/WOPTO huggingface dataset:
Patent GB-625365-A (GB)
Title: Improvements in or relating to decaffeination of green coffee beans
IPC: B01D11/02
Filed: 1947-07-16
Abstract: 625,365. Washing coffee. GENERAL FOODS CORPORATION. July 16, 1947, No. 18945. Convention date, May 9, 1941. [Class 58] [Also in Group VI] Green coffee beans, together with extracting liquid, passes by way ot a pipe 96 into the rotating cylindrical screen of a washer 97. Extracting liquid separates from the coffee and collects in a compartment 100. Buckets 110 carried by the rotating screen dip into drainage compartments 111 to pick up wash water which is showered down through the screen. The washed coffee is discharged through a chute 119. Exhausted wash water leaves by way of a pipe 46, and is replaced by fresh water from a tank 113 through a pipe 112. The wash water may be heated by a steam heater 117.
Patent GB-254118-A (GB)
Title: Improvements in or relating to gas cooking ovens
IPC: F24C15/00
Filed: 1925-07-25
Abstract: 254,118. Flavel, P. W. July 25, 1925. Ovens; oven shelves; linings:- The liners of a gas oven, carrying heat-insulating material, interlock with one another and may be released by a single operation. In the arrangement shown, the left-hand lining A is kept in position by the edge of the back lining C. which is itself retained by the right-hand lining A, the whole being removable by releasing a lug D securing the lower edge of the right-hand lining. The upper edges of the linings extend into, and are retained by, recesses formed by a trough-piece H. The linings carry heat-insulating material E, and are formed with horizontal corrugations providing grooves in which the shelves slide. Tongues B prevent complete withdrawal of the shelves by contacting with the rear edges of the latter, the shelves being formed so that they may be entirely withdrawn on being tilted.
Patent GB-458737-A (GB)
Title: Improvements in or relating to tube drawing mandrels with wearing surfaces of hard metal
IPC: B21C3/16
Filed: 1936-07-08
Abstract: 458,737. Drawing-mandrels. FAGERSTA BRUKS AKTIEBOLAG, Fagersta, Sweden. July 8, 1936, No. 18980. Convention date, July 10, 1935. [Classes 83 (ii) and 83 (iv)] A mandrel for tube-drawing has a wearing portion of a hard metal, a tapered part or plug on which is surrounded by the shank of the mandrel, and is secured thereto by shrinking and soldering. The hard metal may comprise carbides, silicides, nitrides, or borides of tungsten, molybdenum, titanium, or tantalum, high-speed steels, or cobalt-tungsten alloys. A hard-metal tip 6, Fig. 10, has flutes or threads on a tapered part 8 thereof which is secured within a corresponding recess in the shank 1, a bolt with a threaded end 9 further securing the assembly. A tip 6, Fig. 11, has a conical part 8 engaging in a recess in the shank 1. Modifications of the form of the extension 8 are described. Lubricating and cooling.-Grooves 10, Fig. 11, are formed in the mandrel for the passage of lubricant and coolant.
Patent GB-405608-A (GB)
Title: Improvements in or relating to combustion control apparatus
IPC: F23N3/02
Filed: 1932-07-05
Abstract: 405,608. Regulating draught in furnaces. GAS LIGHT & COKE CO., Ltd., DIETERICHS, W., and BROOKBANK, T. A., 84, Horseferry Road, London. July 5, 1932, No. 19032. [Class 51 (i).] A damper 17 in the flue of a fluid fuel burning device is operated by a diaphragm 3 deflected by variations in the air or fluid fuel flow to a burner so that the free cross sectional area of the flue is maintained proportional or approximately proportional to the rate of consumption of fuel. The damper is positively connected to a diaphragm 3 at one side of which is an enclosed space 21 in communication, at a point on the burner side of any valves or taps, with a pipe feeding fuel or air to the burners of the apparatus. The diaphragm 3 conveniently of leather is reinforced by metallic washers 6, 7 and clamped at its edges between the parts 1 and 2 of the diaphragm casing one side of which is adapted to be connected to the fuel or air pipe by way of the inlet 22. A rod 8 carrying a rack 14 engaging with a geared segment 15 on the damper spindle is bolted at one end to the diaphragm and at the other is guided between adjustable rollers 9, 10. The rod and segment are enclosed in a casing 13 bolted to the flue 23 and to the casing of the diaphragm. In one form, Fig. 1, the diaphragm is loaded by a helical spring 20 and the flue is enlarged above and below the damper by an outward curvature as shown at 25, 26 so that as the damper which is of circular form moves through its range of 90‹, the area of flue opening is approximately proportional to the rate of consumption of fuel. In a modification Fig. 4, a similar result is obtained using a straight flue 30, the damper being of elliptical form and having a range of 45‹ and the diaphragm being loaded by a conical spring 20<1>. In this form the damper is fully closed at an angle of 45‹ to the axis of the flue.
Patent GB-147070-A (GB)
Title: Improvements in and relating to the cutting of the teeth of gear wheels or the like out of moulding material
IPC: B22C13/02
Filed: 1920-07-06
Abstract: 147,070. Verbeek, H. March 10, 1914, [Convention date]. Moulding - machines.-Moulds for gear-wheels are formed by cutting the teeth spaces out of moulding-material. A band s bent to the shape of a tooth and fixed to the rod p of a shaping or moulding machine is forced through the material to cut out a portion m which may be separated at the bottom by a layer t of sand-paper, tinfoil, &c. or by a knife h subsequently operated and is removed by moving the band s laterally. The edges a may be prevented from crumbling by supports o', o<2>, o<3>. The bottom of the mould mav be hollow as shown in Fig. 4 or a bottom board may be employed. A number of superposed moulds may be cut at one operation, as shown in Fig. 5. The Specification as open to inspection under Sect. 91 (3) (a) states also that the band s, Fig. 9 (Cancelled) may be of wedge form to force out the portion m during the cut. This subjectmatter does not appear in the Specification as accepted.
Patent GB-650510-A (GB)
Title: Improvements in and relating to protective arrangements for electric power distribution systems
IPC: H01H73/34
Filed: 1948-07-15
Abstract: 650,510. Protective cut-out arrangements; automatic circuit-breakers. BRITISH THOMSON-HOUSTON CO., Ltd. July 15, 1948, No. 19043. Convention date, July 18, 1947. [Class 38(v)] A main circuitbreaker 14 is arranged to open on fault one or more times in a relatively short time, before it is eventually opened with a time delay, during which delay, the circuit-breaker 15 or 16 in the faulty feeder is adapted to open, the main circuit-breaker then reclosing to restore the supply to the sound feeders. The branch circuit-breaker described is identical with that described with reference to Fig. 8 of Specification 650,509.
Patent GB-875901-A (GB)
Title: Liquids-solids blender
Inventor: FISCHER JOHN JAMES
IPC: B01F29/64
Filed: 1959-06-04
Abstract: 875,901. Powder wetting and blending. PATTERSON-KELLEY CO. Inc. June 4, 1959, No. 19118/59. Class 86 An apparatus for blending and mixing liquids with dry powdered solids which are not easily wetted comprises a V-shaped container having frusto-cylindrical side leg portions 10, 12 mounted for rotation on the trunions 25, 26 and driven by motor 29 through a reduction gear-box 30. The other motor 45 rotates, at a much higher speed than that of the container, the hollow shaft 40 carrying discs 46 and ribs 47 forming a cylindrical cage-like agitator which operates on the walls of the cylindrical cavity in the powder formed centrifugally by rotation of the container. Liquid is supplied by the pipe 36 to the interior of a pipe 60 concentric with shaft 40 and having apertures 62 midway thereof through which the liquid escapes into the annular chamber 66, and thence through apertures as at 64 into chambers 59. By centrifugal force the liquid is expressed through the interstices between parts of dies 53, 54 mounted obliquely on shaft 40 in swash-plate like manner. The discs 53, 54 may be replaced by a pair of hollow cylindrical hubs with obliquely extended flanges separated by a distance piece (Fig. 5, not shown), or by a plurality of discs forming an oblique cylinder (Fig. 6 not shown) or by a pair of complementary hollow frusto-cylinders, (Fig. 3, not shown). In the last modification the size of the liquid passage may be altered by relatively displacing the frusto-cylinders on the shaft 40; in the other cases by means of shims. Any of the liquid dispersion arrangements may be used with or without the cage-like agitator. Specifications 668,589 and 714,016 are referred to.
Patent GB-1069861-A (GB)
Title: Preparation of steroid ethers and thioethers
IPC: C07J75/00
Filed: 1964-05-07
Abstract: Steroid ethers or thioethers of the androstane, estrane, pregnane or 19-nor-pregnane series are produced by treatment of a corresponding steroid acetal, monothioacetal, dithioacetal, ketal, monothioketal or dithioketal with one of (a) a hydride of boron, aluminium, gallium, indium or thallium, with subsequent treatment with hydrogen peroxide when a boron hydride is used, (b) a hydride specified above or a double metal hydride containing at least one atom of boron, aluminium, gallium, indium or thallium, together with a hydrogen halide or a Lewis acid free from acidic hydrogen and containing iron, cobalt, nickel, boron, aluminium, gallium, indium or thallium, or (c) an alkali metal or alkaline-earth metal hydride together with a Lewis acid free from acidic hydrogen and containing boron, aluminium, gallium, indium or thallium.
Patent GB-785708-A (GB)
Title: Radio navigation system
IPC: G01S13/78
Filed: 1955-07-04
Abstract: 785,708. Radio navigation. STANDARD TELEPHONES & CABLES, Ltd. (International Telephone & Telegraph Corporation). July 4, 1955, No. 19327/55. Class 40 (7). In a radio beacon system for enabling a craft to determine its range and bearing from a beacon transmitting a rotating directional pattern such that the envelope of the amplitude variation of the signal received at the craft comprises the first and third harmonic of the rotation frequency f 3  the R.F. carrier applied to the directional beacon aerial is keyed by coded interrogating pulses transmitted from the craft and by reference pulses of recurrence frequency f and -f synchronized with the beacon rotation. In the absence of interrogating pulses the beacon carrier is keyed by random noise pulses such that the average duty cycle of the beacon transmitter is substantially independent of the presence of interrogating craft. The beacon comprises a fixed aerial 16 energized from an R.F. source 14 and surrounded by three parasitic elements 18a, 18b, and 18c mounted on a disc 17 driven by a motor 19 at a speed of f=30 c/s, element 18b being nearer aerial 16 than elements 18a and 18c so that the beacon radiation pattern comprises one major lobe and two minor lobes. The R.F. source 14 is keyed at 26, (1) by a burst of 50 Kc/s pulses from generator 25 each time the major lobe passes through a datum direction; (2) by a burst of 100 kc/s pulses from generator 28 each time a minor lobe passes through the datum direction; and (3) in the intervals between said bursts of coded pulses from a pulser 29 initiated by coded interrogating pulses from the craft transmitter 52 received by the beacon receiver 54, 56, 35, 36. The generators 25, 28 are keyed by pulses from pick-ups 23b and 23a, 23c respectively spaced round a non-magnetic disc 21 driven by motor 19 and carrying an iron slug 22. The gain of the I.F. amplifier 35 is adjusted so that in the absence of interrogating pulses the receiver noise will actuate pulser 29 in a random manner and if the output of the beacon transmitter tends to exceed a predetermined lever a duty cycle limiter circuit 59 reduces the gain of the I.F. amplifier 35 to reduce the noise output as described more fully in Specification 785,707. The radiated signal from the beacon is received at the craft receiver 32 and the bearing envelope wave is derived by applying the output, Fig. 3A (not shown), from detector 33 through amplifier 34 to a pulse widener 65 and peak follower 66, the first and third harmonic components of the envelope wave being selected by filters 37 and 38 and applied through geared phase shifters 43, 44 to discriminators 45, 46. An output from amplifier 34 is also applied to a limiter 39 and the 50 kc/s and 100 kc/s pulses in the output thereof, Fig. 3B (not shown), are selected by filter 42, 40 to control 30 c/s and 90 c/s reference pulse generators 41, 41a, whose outputs are applied to discriminators 45, 46. The range is determined by applying the reply pulse output from limiter 39 to a known form of ranging circuit 49 coupled to a distance meter 50.
Patent GB-380189-A (GB)
Title: Improvements in connection with machines for drying photographic prints and other material
IPC: G03D15/02
Filed: 1931-07-06
Abstract: 380,189. Photographic drying-apparatus. HALL, B. F. and HALL & CO., Ltd., B. J., Stourton House, Dacre Street, London. July 6, 1931, No. 19396. [Class 98 (ii).] Drying- apparatus for photographic prints and other material, of the type in which the prints are carried by an endless band round a heated cylinder, is provided with means for moving the band clear of the cylinder when the machine is stopped. In the form shown the band E passes round guide rollers, of which the upper roller D is carried by arms A pivotally mounted on the frame B of the machine so that it may be lifted by the handle a<2> to allow the band E to hang clear of the cylinder F as shown by the dotted line.
Patent GB-975516-A (GB)
Title: A new or improved liquid flow meter
Inventor: ALLEN ERIC HAROLD WILLIAM
IPC: G01F15/10
Filed: 1961-05-30
Abstract: 975,516. Pressure relieving devices for fluids. GEORGE KENT Ltd. May 30, 1961, No. 19458/61. Heading F2V. [Also in Divisions F1 and G1] A liquid flowmeter has its indicator 7 housed in a sealed casing 8 formed of a transparent material or including a panel g of the same sealed about an inspection opening 11 in the meter housing 1 whereby the indicating components are visible through the transparency, the housing having in its liquid receiving space a compressible material 16, 17 formed of an expanded rigid plastic. The meter described has a unit housing 4 containing a gyrating ring-piston 4a which turns the indicator 7 by way of a shaft 5 and gears 6 and 13. The casing 8 has an opening for the shaft of gear 13 sealed by an 0-ring and an opening for the panel 9 sealed by a washer 11. The casing 8 is filled with a substantially transparent lubricating liquid and pressure inside and outside the casing is equalised by the lubricating liquid being exposed to the pressure of the liquid in the housing 1 through a flexible sac (Fig. 1, not shown) which is connected to the inside of the casing. The material 16, 17 consists of pads of expanded rigid polystrene or poly-vinyl-chloride in which individual cells are not interconnected. The behaviour of these formers of plastic under pressure in comparison with that of expanded rubber is discussed in the Specification. Specification 936,929 is referred to.
Patent GB-237920-A (GB)
Title: Method and means for purifying gases
IPC: C10K1/12
Filed: 1925-07-31
Abstract: 237,920. Humphreys & Glasgow, Ltd., (Assignees of Fulweiler, W. H.). Aug. 1, 1924, [Convention date]. Sulphur. - In a process of purifying gas by treatment with the solution of a salt which absorbs hydrogen sulphide to form a sulph-hydrate, the latter being oxidized to the original salt with the liberation of sulphur by passing air in a state of fine division through a column of the foul solution, the sulphur precipitating properties of the fresh solution are enhanced by the addition of a small quantity of the previously used solution or of a soluble iron salt. The air is supplied in regulated quantities below a porous diaphragm so that the air pressure supports the liquid above the diaphragm, and the free sulphur is recovered by filtering the liquid. The gas entering by a pipe 2 passes through a coke scrubber 5 supplied by a pipe 4 with an alkaline solution such as sodium carbonate and escapes by an outlet 3. The fouled solution runs into an actifier 7 containing from 3 to 6 feet in depth of the solution and air from a pump 10 is supplied to a pressure chamber 9 below a porous diaphragm 8 which admits the air in a finely divided state to the solution. Baffles 11 serve to mix the solution during its circulation through the actifier. A pump 13 supplies the solution to a filter 12 in which the sulphur is recovered.
Patent GB-1010389-A (GB)
Title: Improvements in the manufacture of hollow articles by dip moulding
Inventor: SPOUSE STANLEY ALAN
IPC: B29C41/14
Filed: 1963-05-16
Abstract: 1,010,389. Formers or cores for use in dipmoulding. VEEDIP Ltd. Aug. 14, 1964 [May 16, 1963], No. 19485/63. Heading B5A. A former or core for use in dip-moulding is provided internally with heating means which are such that the surface temperature of the former may be substantially uniformly raised at a rate of at least 2‹ C. and preferably at 10‹ C. per second or higher. The mouldable material may be natural or synthetic rubber or synthetic plastics, in particular, P.V.C. in paste form. The heating means may be electrical, but are preferably those utilizing the circulation of hot oil, e.g. silicone oil. The heating may be effected as soon as the former has been removed from the dipping bath, although heating may begin while the former is immersed to its full extent provided that the temperature does not exceed the gelation temperature of the material. The former may be cooled by circulation of cold oil. In a process according to the invention the surface temperature of the former is raised, after removal from the tank, such that pregelling occurs in less than one minute and complete gelling within a further four minutes and preferably such that pre-gelling occurs in less than 0À25 minutes and complete gelling within a total time of one minute. Specific examples concern the manufacture of lined or unlined gloves and the formers used may be of metal, e.g. aluminium, each having an inlet oil pipe which terminates in a perforated head within the palm or is branched to extend into the fingers and thumb.
Patent GB-1442575-A (GB)
Title: Electrophotographic material and method of making photoconductive  particles
IPC: H01B1/20
Filed: 1974-05-03
Abstract: 1442575 Coated ZnO particles BELL & HOWELL CO 3 May 1974 [6 June 1973] 19569/74 Heading C1A [Also in Division G2] Zinc oxide particles are dispersed in a liquid and a selenide or telluride of Zn, Cd or Hy (the selenide or telluride being present in an amount less than the ZnO but at least 0À5 weight per cent of ZnO) is chemically deposited thereon to form sensitized photoconductive particles used for electrophotography (see Division G2). Preferably the liquid is water and a watersoluble salt (e.g. CdCl 2 , ZnCl 2  or nenuric acetate) and a water-soluble Se or Te compound (e.g. selenourea, hydrides of Se or Te or sodium selenide or telluride) is added and the selenide or telluride is deposited as islands 18 on the ZnO particle 16 whilst stirring the slurry.
Patent GB-355879-A (GB)
Title: Improvements in or relating to locking devices for hand levers such as brake levers or knife bar lifting levers on mowing machines
IPC: A01D34/26
Filed: 1930-06-27
Abstract: 355,879. Brakes. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN, Ltd., 259, City Road, London.-(International Harvester Co. ; 606, South Michigan Avenue, Chicago, U.S.A.) June 27, 1930, No. 19553. [Class 103 (i).] To lock an operating lever, such as the cutter-bar lifting lever of a mowing machine or the hand-brake lever on a vehicle, in a desired position while having easy unlocking possible the lever is carried on an arm in pivotal relationship with a fixed notched sector, a toggle link being provided between said arm and the sector to lock the arm against movement in one direction until freed by pressure applied to the operating link in a direction to disengage the toggle link. In the mowing machine shown the shoe 15 is provided with a link 18 connected through a linkage 28 and rockshaft 26 to a link 24 depending from the front end of a lifting plate 23 pivoted on a bolt 22 carried by a notched sector plate 21 securely attached to the machine frame. At its top an extension 31 is formed on the plate 23 and a bolt 32 carrying at its free end a spring 33 passes through this. The leg of the spring passes through a bolt 35 carried by an upper pawl member 36 pivoted on the extension 31. A lower pawl member 38, adapted to engage the notches on the sector plate 21, is pivoted on the bolt 35. The spring normally tends to move the pivot 35 to the rear over the dead-centre of the toggle formed by the two members 36, 38. A hand-lift lever 29 is connected by a bolt 30 to the lifting plate 23 eccentrically of the pivot of the plate the connection being arranged to provide for a slight amount of lost motion, the lever moving between a stop 39 and the extension 31 on the lift plate. The upper pawl member 36 is provided with a boss 40, that may be engaged by the lift lever 29. In operation the lever 29 is swung downwards to lift the cutter bar, engaging the stop 39 and moving the lifting plate 23; the pawl 36, 38 slips over the raised parts of the notched plate 21 bending at the pivot 35 against the action of the spring 33. When the hand lever is released the pawl member 38 engages in one of the recesses of plate 21 and holds the cutter bar in the raised position. To lower the bar the lever is moved backwards engaging the boss 40 and pressing the toggle links past their dead-centre against the action of the spring 33 before the plate 23 is moved. On the plate being moved the member 38 trails behind slipping over the notches as before. A foot-lever 41 is pivoted to the plate 23 to assist the hand-lever 29.
Patent GB-738907-A (GB)
Title: Improvements in radiants for gas fires
IPC: F24C15/24
Filed: 1953-07-15
Abstract: 738,907. Radiants. TENNANT & SONS (WARRINGTON), Ltd., J., and TENNANT, D. R. July 7, 1954 [July 15, 1953], No. 19617/53. Class 126. A radiant for a gas fire comprises an elongated refractory body having a hooked part near its upper end for engagement with a projection on the back of the fire and a rearward projection on the lower part adapted to rest against the back of the fire and determine the combustion space. The elongated radiant 1 is provided with lateral projections 5 to space it from adjacent radiants, and the upper portion 2 is hooked to engage a projection 3 on the fireback 4. A projection 6 on the lower part of the radiant 1 rests against the fireback and determines the combustion space. If the back of the fire itself is not provided with a suitable projection 3, the fire-back 4 may be formed as a separate unit provided with a hook 9 to engage a retaining rod in the back of the fire. The lateral projections 5 on the radiant 1 are triangular in section, with the apex of the triangle to the front, and the radiant 1 tapers to the front and more gradually to the back. The rearward projection 6 forms a smooth rearward continuation of the body. The back plate is made of a width to accommodate a suitable number of radiants.