baber/WOPTO huggingface dataset:
Patent GB-628116-A (GB)
Title: Apparatus for measuring and testing physical properties of materials by electro-mechanical vibrations
IPC: G01N29/04
Filed: 1946-05-03
Abstract: 628,116. Testing material by supersonic vibrations. GENERAL MOTORS CORPORATION. May 3, 1946, No. 13447. Convention date, Dec. 4, 1944. [Classes 40 (i) and 118 (ii)] The physical properties of the material of a test-piece or its dimesnions are tested or measured by electrically vibrating the test-piece at a frequency which is varied cyclically and observing the natural frequency of vibration. The test-piece 16 is vibrated by a piezoelectric crystal 62 energized by an oscillator, the frequency of which is controlled by a variable condenser 52 driven by a motor 56 synchronously with the time-base of a cathode-ray oscilloscope 73. At the point in each cycle corresponding to the natural frequency of the test-piece, the load on the oscillator is greatly increased and the potential drop across a resistance 66, which is applied to an amplifier 72 connected to the Y-plates of the oscilloscope 73, increases correspondingly, thus causing a stationary vertical deflection on the screen of the oscilloscope at a position along a horizontal scale corresponding to the natural frequency. The scale may be calibrated to give the thickness or other property of the test-piece. The output of the amplifier 72 may alternatively be applied to a stereoscopic lamp arranged to illuminate a calibrated disc rotated synchronously with the moving plates of the variable condenser 52 so that the disc appears to remain stationary at a position corresponding to the natural frequency of the test-piece and the scale on the disc may be read against a fixed pointer. Specification 628,170 is referred to.
Patent GB-131436-A (GB)
Title: Improvements in or in connection with the Shuttle Checking Mechanism of Looms.
Inventor: NEWTON-SMITH ARTHUR
IPC: D03D49/52
Filed: 1918-08-19
Abstract: 131,436. Smith, A. Newton-. Aug. 19, 1918. Checking shuttles.-The swell is operatively connected to a dash-pot and a spring secured to the shuttle box. In the form shown, the swell 1 is pivoted on a pin 3 slidable in slots 4 in the shuttle-box back 2 and carries a pin 6 engaging a lever 7, which is acted upon by an adjustable spring 8 and engages the piston-rod 10 of a dashpot 11, 12. The dash-pot is controlled by an air-escape valve 13. In a modification, the swell is mounted directly on the lever, which is pivoted on a bracket carrying the spring. The swells may have horizontal projections and thus act as screeds, and may be mounted to permit of vertical adjustment.
Patent GB-976869-A (GB)
Title: Improvements in or relating to dust extraction
IPC: B66B17/26
Filed: 1962-04-09
Abstract: 976,869. Confining and removing dust in industrial processes. SIEMAG MASCHINENUND STAHLBAU NETPHEN G.m.b.H. April 9, 1962 [April 19, 1961], No. 13507/62. Heading F4X. [Also in Division B8] A shoot 2 through which material from a mine is loaded into a conveyer bucket 4 has a sealing member 3 surrounding the filling opening 5 of the bucket, and a draw-off space 17 leading from the useful-load-space of the bucket to dust extraction means 18. In the form shown the sealing member 3 is slidable on the shoot 2 and forms a dust-tight connection between the bucket and the shoot. The sealing member 3 is constructed to provide also an air space 10 and two channels 12 (see Fig. 2) leading from the air space, and connecting via ports 14 to the drawoff space 17. When a container 4 is positioned for filling, the space 10 connects with a space 7 within the container and formed by a baffle 6. As the material discharges from the shoot 2, dust and displaced air pass out through spaces 7, 10, channels 12 and ports 14, to the draw-off opening 17 and thence to the draw-off pipe 18 of a dust removing unit (not shown). Other air and dust passes to the draw-off space 17 from the upper part of the container 4.
Patent GB-859153-A (GB)
Title: Method and apparatus for measuring the thickness of a deposit
Inventor: MARTINELLI PIERRE
IPC: G01N23/207
Filed: 1959-04-21
Abstract: 859,153. Measuring thickness using beta rays. COMMISSARIAT A L'ENERGIE ATOMIQUE. April 21, 1959 [April 24, 1958], No. 13509/59. Addition to 816,062. Class 40(3). [Also in Group XL(a)] In a method of determining the thickness of a deposit according to the parent Specification, the intensity of radiation resulting from the projection of #-rays on the deposit is measured in a narrow frequency band which includes a characteristic X-ray. In the present invention the method is characterized in that the #-rays retrodiffused by the deposit are separated magnetically from the X-rays. The deposit 2 on a support 1 is irradiated by a source 4 of #-rays 7. Characteristic X-rays 8 and retrodiffused #-rays 25 are emitted from the deposit and support, and pass towards a gas-counter 17. A lead protection plate 6a shields the counter from radiation direct from the source 4. The #-rays 25 are deflected by a magnetic field of a magnet 26 but rays such as 25a, which might reach the counter 17, are stopped by a screen of light material, e.g. aluminium. The elements 14, 15a and l5b respectively select the energies corresponding to the X-rays characteristic of the metals of the deposit and support, integrate the selected impulses, and indicate their intensities. The indicator 15b may be graduated directly in thickness. A filter 18 may be placed in the path of the X-rays, the filter having an absorption discontinuity intermediate the respective X-rays emitted by the support 1 and deposit 2 so that X-rays having, for example, the higher energy are absorbed while those of lower energy are passed to the counter 17. If a Geiger-counter replaces the counter 17 the amplitude selector 14 is not required.
Patent GB-334502-A (GB)
Title: Improvements in the manufacture of yeast
IPC: C12N1/16
Filed: 1929-05-01
Abstract: 334,502. Distillers Co., Ltd., and Neyer, E. A. May 1, 1929. Yeast.-In a continuous process for the production of yeast by fermentation in a nutrient liquid such as molasses wherein nutrients are continuously added and yeast containing liquor is continuously withdrawn, conditions which inhibit the growth of undesirable organisms without detrimental action on the growth or quality of the yeast are maintained hy adding continuously to the fermenter. during fermentation, substances which stimulate the action of the yeast growth but destroy undesirable organisms. Such substances are halogens, e.g., chlorine, bromine or iodine or alkaloids e.g. pyridine, nicotine or other alkaloids which are known to be non-toxic to yeast, and possess a bactericidal action. Examples are given of the use of chlorine and bleaching powder. A solution of assimilable salts also containing the inhibiting substance may also be added. Specifications 155,288, 238,554, 252,193 and 275,329 are referred to.
Patent GB-1381695-A (GB)
Title: Optical signal amplifier
IPC: H01S3/067
Filed: 1973-03-21
Abstract: 1381695 Lasers ELTRO GmbH 21 March 1973 [7 April 1972] 13596/73 Heading H1C A laser amplifier comprises an optical fibre 1 having a core 11 of optically passive material and refractive index n k , an inner sheath 12 of laser active material and refractive index n m1 , and an outer sheath 13 of optically passive material and refractive index n m2 , the materials of the core and sheaths being such that Suitable glass may be used for all three layers, the inner sheath being doped with neodymium. The amplifying fibre is end-pumped by coherent radiation 7, e.g. from a Ga AP As laser, transmitted along an optical fibre 2 having refractive indices for its core 21 and sheath 22 matched to the amplifying fibre core and inner sheath; respectively. The amplifier input radiation 5 is introduced by an inclined element 3 reflective to the input wavelength, e.g. 1À06 Ám., and transmissive of the pumping wavelength, e.g. 0À9 Ám. The output end 4 of the laser fibre is non-perpendicular to the fibre axis and provides an output beam 6 as well as deflecting reflected radiation 9 away from the amplifier.
Patent GB-514458-A (GB)
Title: Improvements in or relating to luminescent materials
IPC: C09K11/59
Filed: 1938-05-06
Abstract: 514,458. Luminescent materials. FRANCOBRITISH ELECTRICAL CO., LTD., and BRACKENSEY, A. H. May 6, 1938, No. 13617. [Class 39 (i)] A luminescent material for the production of luminescent screens giving substantially white fluorescence in electric low pressure mercury lamps, consists of a mixture of from 70 to 90 parts by weight of activated cadmium silicate, 10 to 30 parts by weight of activated zinc silicate, and 2 to 10 parts by weight of activated calcium tungstate, with or without the addition of activated zinc bervllium silicate. In one example, 80 parts of manganese activated cadmium silicate, 15 parts of manganese activated zinc silicate and 5 parts of lead activated calcium tungstate and 1 to 10 parts of manganese activated zinc beryllium silicate are mixed and ground together and applied as an interior coating of a mercury low pressure lamp. The term zinc silicate includes the zinc orthosilicate and that described in Specification 509,723.
Patent GB-617518-A (GB)
Title: Improvements in or relating to devices for controlling the movement of the pick-up arm of a talking machine
IPC: G11B3/085
Filed: 1946-05-06
Abstract: 617,518. Gramophones. PAILLARD & CIE. SOC. ANON. May 6, 1946, No. 13629. Convention date, March 21. [Class 40 (ii)] In a device for lifting and lowering a pick-up arm and for returning it to the starting point for records of different sizes, the arm 1 is raised by a pusher 25 which is operated by a crank 23 and a cam 21 on a member 8. Members 8 and 9 turn freely on a sleeve 4 which carries the arm 1 and a crank 6 at the end of a record, a member 11, part of the usual automatic control, is turned clockwise from the position shown in the Figure, the arm 1 is raised by the cam and pusher and is swung outwards by the action of member 8 on a pin 7 mounted on the crank 6. As member 8 is withdrawn, the arm is returned by a spring 13 and member 9 until held by a stop 15 and is finally lowered to the record under control of the cam 21. The stop is adjustable for different sized records, either manually or under control of a feeler. The spring 13 may be replaced by a friction coupling between the members 8 and 9. The pusher 25 may be held in a fixed angular position by a lug 28 and a fixed pin 30. Alternatively, the pin 30 may be secured to the member 9. A frictional engagement between a surface 20 on the arm 1 and an arm 26 mounted on the pusher 25 prevents uncontrolled swinging of the arm.
Patent GB-1064130-A (GB)
Title: Improvements in materials and in matching transformers produced therefrom
IPC: H03H7/38
Filed: 1955-05-11
Abstract: In a transmission line transformer a dielectric material is employed in which the dielectric constant or apparent dielectric constant, i.e. the product of the dielectric constant and the permeability decreases with the increase of frequency.  The foundation material may be Oppanol or may consist of materials having Registered Trade Marks, "Vulkollan" (a polyurethene), "Buna" and "Perbunan," with an additive of iron, iron carboryl, iron oxylate, barium ferrite, nickel zinc ferrites, non-ferrous metals, graphite, titanium, dioxide or barium titanate.
Patent GB-821410-A (GB)
Title: Improvements in and relating to refrigerated storage cabinets
Inventor: LONGMAN CECIL WALTER
IPC: F25D23/00
Filed: 1958-04-30
Abstract: 821,410. Refrigerators. PRESSED STEEL CO. Ltd. April 30, 1958, No. 13805/58. Class 29 In a refrigerator having a moulded liner farming a rounded corner 12 between top and rear walls 11, 10, and a U-shaped evaporator 13 suspended from top wall 11 and having square rear corners 16, a plate 18 secured to rear wall 10, has a U-shaped flange 17 covering the gap between the rear wall and the rear end of the evaporator. The bottom part of flange 17 is formed with a drainage channel 20 for moisture condensate.
Patent GB-1254375-A (GB)
Title: Liquid sampling device
Inventor: TANSONY JOHN REGINALD
IPC: G01N1/12
Filed: 1969-03-17
Abstract: 1,254,375. Raising and discharging liquids. J. R. TANSONY. March 17, 1969 [March 21, 1968], No. 13814/69. Heading F1R. A container 10, is immersed in a liquid 12 e. g. sewage and is hence filled with a sample through an opening 24 in its base 22 which leads to a flexible tube 36 flattened at its inner end to provide a slit 38, the displaced air passing through a pipe 16. When the container is full, compressed air is passed through the pipe 16 to force the sample through a pipe 18 to the sampling station 14, the tube 36 being closed by the compressed air, Fig. 5 (not shown). The taper of the tube 36 acts as a rough filter for particles suspended in the liquid to be sampled. The container 10 has a bracket 28 enabling it to be fixed at different depths within the liquid. The air-line 16 has a valve 44 which may be solenoid-operated or a mechanical three-way valve.
Patent GB-1517106-A (GB)
Title: Lintel
IPC: E04C3/02
Filed: 1977-02-16
Abstract: 1517106 Lintels EXPANDED METAL CO Ltd 16 Feb 1977 [6 April 1976 17 May 1976] 13860/76 and 20212/76 Heading E1K A lintel comprises a horizontal part 6 which, in use, rests at its ends on inner and outer skins of a cavity wall to support the outer skin 1 above an opening, a first web 4 made rigid with the part 6, preferably by welding, and extending upwardly and rearwardly to terminate in a flange 10 arranged to enter the inner skin 2, a second horizontal part 7 arranged between the flange 10 and the part 6 and connected, either as shown to an intermediate point on the web 4 in the same plane, or to the top of the web adjacent the flange 10 (Figs. 4-6, not shown), and a second web 5 rigid with the part 6 and extending upwardly from an intermediate point on part 6 to connect rigidly with the part 7, preferably centrally of the thickness of the skin 2. The part 7 is preferably arranged at a height above part 6 equivalent to either one (as shown) or two courses of bricks, and the flange 10 is either one or two courses of bricks higher than the part 7. The lower end of web 4 preferably includes a flange 9 having a depending lip 8.
Patent GB-943887-A (GB)
Title: Internal shoe-drum brake
IPC: F16D65/22
Filed: 1962-04-10
Abstract: 943,887. Internal shoe-drum brakes. BENDIX CORPORATION. April 10, 1962 [April 27, 1961], No. 13869/62. Heading F2E. An internal shoe-drum brake comprises a support plate 24 carrying a pair of arcuate shoes 11, 12 adapted to be actuated by cam means 40 disposed between two of the adjacent ends of the shoes, the other rounded ends 20 of the shoes being slidably and pivotably disposed in slots 48 provided on opposite sides of an anchor member 38. The anchor member is provided with a rectangular boss 42 riveted to the support plate 24 of the brake, the boss 42 being disposed generally in the direction of the shoe anchoring force. The cam means 40 is secured to one end of a shaft 50 having an enlarged diameter portion 52 limiting axial movement of the shaft in one direction through an opening in the support plate and a doubled-over sheetmetal actuating lever 56 is splined to the other end of the shaft 50 to limit axial movement of the shaft in the other direction. Two coil springs 28 bias the shoes laterally into engagement with ledges 22 constructed integrally on the backing plate.
Patent GB-1090138-A (GB)
Title: Apparatus for regulating oxygen flow rate
IPC: G05D7/03
Filed: 1966-03-29
Abstract: 1,090,138. Gas flow regulator for respiratory gas. SOCIETE DE FABRICATION D'INSTRUMENTS DE MESURE. March 29,1966 [Sept. 16, 1965], No. 13871/66. Heading A5T. A gas flow regulator, for supplying an aviator's pressurized helmet and garment from a gas source, is illustrated with reference to the drawing and comprises a gas inlet means 1 adapted to be connected to a gas source, a gas outlet means 51 adapted to be connected to the helmet (via 52) and to the clothing (via 53), a stop-valve 5 communicating with the gas inlet, a metering valve 26 to supply the gas outlet with the gas under the control of a first bellows 29 sensitive to respiratory requirement, a valve 45 for limiting the gas-pressure in the gas outlet depending on the gas pressure inside a control bellows 47, a first gas circuit 23, 25, 30 from the stop-valve 5 to the metering valve 26 and to the interior of the first bellows 29, a second gas circuit 31, 41, 42, 46 from inside the first bellows 29 to the interior of the control bellows 47, a first control tap 24 mounted in the first gas circuit to be able to interrupt same between the metering valve 26 and the interior of the sensitive bellows 29, establishing a gas communication between the stop-valve 5 and the interior of the gas outlet 51, a second control tap 32 mounted in the second gas circuit and actuable simultaneously with the first tap by manual operation to interrupt the second gas circuit between the interior of the first bellows 29 and the interior of the control bellows 47, thereby establishing a gas communication between the stop-valve and the interior of the control bellows through the intermediary of the first control tap, to which the second tap is linked by gas communication (23, 64).
Patent GB-1330824-A (GB)
Title: Methylenation process
Inventor: LEIMGRUBER W
IPC: C07D317/50
Filed: 1972-03-24
Abstract: 1330824 Methylenation process F HOFFMANN-LA ROCHE & CO AG 24 March 1972 [26 March 1971] 13878/72 Heading C2C A process for the manufacture of aromatic methylene dioxy compounds of the general formula comprises reacting a dihydroxy compound of general formula with methylene chloride in the presence of a strongly basic amine of general formula wherein X represents a group (in which case R 1  to R 6  each represent a C 1-7  alkyl group or R 1  and R 2 , R 3  and R 4  and R 5  and R 6  together with the N atom to which they are attached represent a pyrrolidine or piperidine ring) or a -O-R 7  group (in which R 1 , R 2  to R 4  and R 7  each represent a C 1-7  alkyl group). Examples of the amines are tris-(dimethylamino)methane, tris-(dipyrrolidino) methane, tris-(piperidine) methane, bis-(dimethylamino) - t - butoxymethane and bis - (dimethylamino) methoxymethane. The methylation is preferably carried out at the reflux temperature of methylene chloride and the reaction time is usually 6 to 24 hours.
Patent GB-561218-A (GB)
Title: Reduction of ores to metal
IPC: C21B13/00
Filed: 1942-10-05
Abstract: 561,218. Extracting iron and other metals. BRASSERT, H. A. Oct. 5, 1942, No. 13969. Convention date, Oct. 29, 1941. [Classes 72 and 82 (i)] A method of producing iron and other metals from a mixture of reducible metallic compounds, one of which is more easily reducible than the others, comprises subjecting said mixture to the action of a reducing agent at a temperature sufficient to reduce at least partially the more easily reducible material to metal but below that at which any of the said other compounds' is reducible, subsequently melting the mixture of reduced and unreduced materials to separate the purified metal from the unreduced compounds by removing the latter as slag from the metal bath, and treating the slag with a reducing agent to reduce the more easily reducible material therein. The reducing agent added to the slag may be carbon, and flux may be added to the molten mixture to free the more easily reduced material from the remaining metallic compounds. The melting of the reduced and unreduced material may be conducted in a non-reducing atmosphere. When the easily reduced material is iron oxide, it may be subjected to the action of the reducing agent at temperatures between 600‹ and 900‹ C. The slag may be separated, and the molten iron refined to convert it into steel. The reducing agent may, in part, be a reducing gas. When ores containing ilmenite are treated, lime is added to the molten mixture of iron and unreduced material to form a slag of the unreduced titanium compound and the gangue of the ore, and carbon is added to the slag to reduce sufficient of the iron oxide of the ilmenite to effect a substantial concentration of the titanium compound in the slag. When the initial mixture of metallic compounds comprises iron ores containing nickel and chromium compounds, the mixture is subjected to the reducing agent at temperatures below 600‹ C., at which temperatures the nickel is reduced, the iron being left substantially unreduced. Iron vanadium ores are reduced between 600‹-750‹ C., the vanadium being recovered from the molten slag. Similarly iron-manganese, iron molybdenum, and iron-tungsten ores may be treated.
Patent GB-420790-A (GB)
Title: Improvements in or relating to chamber ovens
IPC: C10B57/12
Filed: 1934-05-09
Abstract: 420,790. Coke ovens. GIBBONS BROS., Ltd., Dibdale Works, Dudley, Worcestershire.- (Didier-Werke Akt.-Ges. ; 90, Westfalische Strasse, Wilmersdorf, Berlin) May 9, 1934, No. 13981. [Class 55 (i)] A chamber oven is provided with means for distributing steam or gas uniformly to the charge in the production of water gas, the steam being supplied through metal tubes 19 in channels 18 communicating by branches 21 with tubes 22 in binding bricks 14, passages 23 extending through the bricks are inclined downwardly at 24 to the outlets in the heating walls 12, 13. The lining tubes 22 prevent leakage through the joints between the binders 14. The tubes 19 are slid into position, and retained by refractory blocks 25. Each branch 20 is closed by a calibrated apertured disc 27 to regulate the steam supply.
Patent GB-643200-A (GB)
Title: Improvements in and relating to germanium dry rectifiers and detectors
IPC: H01C7/10
Filed: 1945-06-04
Abstract: Germanium dry rectifiers or detectors are manufactured by heating germanium dioxide in a reducing atmosphere to a temperature lower than the volatilising temperature of germanium monoxide, e.g., at 600 DEG C for one hour, until reduced, powdered germanium is obtained, then heating the germanium in the presence of one or more of phosphorus, arsenic, antimony and bismuth to obtain an alloy of which the added element or elements forms less than 1 per cent and subsequently solidifying the alloy under pressure to the form of plates.  The germanium may be heated in a reducing atmosphere to a temperature above its melting point, e.g., 1200 DEG C, for half an hour to fuse the metal to produce an ingot or lump.  The germanium-phosphorus alloy may be made by heating a thick paste of germanium powder, phosphoric acid and pure carbon covered with carbon powder, in a crucible in an oxidizing atmosphere at a temperature above the melting point of germanium, e.g., at 1000 DEG C, for several hours.  An alloy having a higher proportion of the added element than 1 per cent may initially be produced, which alloy is diluted by repeated admixture with germanium in reducing atmosphere at temperatures above the melting point of germanium.  Solidifying the alloy to form plates may be performed in a carbon mould, pressure being applied by a carbon piston.  Dry rectifiers and detectors are produced from the resulting plates (see Groups XXXVI and XL(c)).
Patent GB-654058-A (GB)
Title: Improvements in or relating to the spot welding of sheet aluminium or aluminium alloys
IPC: B23K11/18
Filed: 1947-05-27
Abstract: Aluminium or aluminium alloy sheets particularly for aircraft are electrically spot welded by first cleaning the surfaces chemically or mechanically to reduce the surface resistivity then applying an interlayer to render the joints fluid-proof or corrosion resisting and then effecting the spot welds.  Cleaning may be effected by first de-greasing in trichlorethylene vapour for three minutes then immersing in an alkaline cleaner such as M.O.S.  Specification D.T.D. 901B, Appendix II or trisodium phosphate solution at 85 DEG C to 95 DEG C, then washing in cold running water, then immersing in a pickling solution of 10 per cent of sulphuric acid, 2 per cent of sodium dichromate and 0.1 per cent of hydrofluoric acid for three to six minutes at 140 DEG F, again washing first in cold running water and then in hot distilled water at 180 DEG F to raise the parts to such temperature and then drying in a heated air oven.  The final cleaning may be effected by a wire brush rotated by a compressed-air motor.