baber/WOPTO huggingface dataset:
Patent GB-1316238-A (GB)
Title: Snap fit stud and socket connectors
IPC: B60R1/068
Filed: 1970-01-30
Abstract: 1316238 Stud-and-socket fastenings NELMOR Inc 5 May 1970 [7 Jan 1970] 4676/72 Divided out of 1294026 Heading E2B A stud-and-socket fastener of stiff plastics comprises two members having conical interfitting surfaces which are held in place by a radially projecting rim on one interfitting with a corresponding recess in the other, this rim being also of frusto-conical shape and axially bounded by oblique shoulders, and the socket member comprising a ring of cantilever legs for resilience. As shown for part of a mirror mounting described in the Parent Specification 1294026, the stud 25 has a rim 25R located in a corresponding circumferential groove in a socket member comprising a ring of legs 24L formed by a groove 24G and radial slots (not visible).
Patent GB-764663-A (GB)
Title: Improvements relating to fastening devices
IPC: F16D1/10
Filed: 1955-02-16
Abstract: 764,663. Nuts; screw-heads. DZUS, W. Feb, 16, 1955 [May 3, 1954], No. 4679/55. Classes 89 (1) and 89 (2). [Also in Group XXIII] A fastening-device 10, Fig. 1, of the kind operable by rotation, e.g. a screw-threaded bolt or nut, is formed with an annular groove 12 or projection around the axis of rotation, for engagement by a driving-key, the peripheries of the groove or ring having tooth-shaped serrations, one edge 14 of each serration being disposed substantially radially of the groove or ring. The serrations have radial edges 14 and tangential edges 13, the teeth on the outer periphery being engaged during clockwise rotation and those on the inner periphery during anti-clockwise rotation. The radial edges of both peripheries are substantially in radial alignment with each other. The driving- tool comprises a tubular member 15, Fig. 3, with a tommy-bar 16 and serrations 17, the serrations being formed on a projecting ring or in an annular groove to correspond with the device.
Patent GB-713486-A (GB)
Title: Improvements relating to weft feelers for looms
IPC: D03D51/34
Filed: 1952-02-22
Abstract: 713,486. Weft feelers for looms. METERS, Ltd. March 16, 1953 [Feb. 22, 1952], No. 4701/52. Class 142(2) A device for feeling the weft in a shuttle at the beat-up comprises a casing 1, two serrated feelers 2, 3 pivoted at 4, 5 and influenced by a tension spring 7, a spring-urged detent member 8 and a member 10 which, when moved, stops the loom motor or initiates weft replenishment. When the feelers 2, 3 engage an exhausted pirn, they slide apart, Fig. 2, and the end 11 of the detent 8 enters a gap between the ends 6a of the feelers, and the end 12 of the detent engages the member 10. The forward movement of the 'slay displaces the casing 1 and causes the member 10 to move and stop the loom or initiate weft replenishment. The casing is provided with studs engaging slots in a fixed plate and is returned by a spring when the slay swings back. A transparent, or metal, cover may be fitted to the casing. The feelers may be made of 'synthetic plastic.
Patent GB-1375946-A (GB)
Title: Actuating mechanisms for electrical circuit components
IPC: B41J5/08
Filed: 1972-02-01
Abstract: 1375946 Retractive switches; transformers HEWLITT-PACKARD CO 1 Feb 1972 [15 April 1971] 4728/72 Headings H1N and HIT An actuating mechanism comprises a key 12 with parallel shafts 14, 16 attached to it, a guide 22 for shafts 14, 16, means 26, 44 for coacting with shaft 14 to give a signal when key 12 is depressed and resilient means coacting with shaft 16 to give a sudden change in resilience in response to movement of shaft 16 providing tactile feedback to the user. As shown, when key 12 is depressed shaft 14 depresses plate 26 attached to plate 24 by retractive springs 28a, 28b, to bring plate 26 nearer to printed circuit transformer 44 formed by two spirals 46, 48 to alter the mutual inductance between spirals 46, 48, to provide a signal. A piece of ferrite may be attached to plate 26. Instead of having a transformer 44, there could be a capacitor or plate 26 could bridge contacts 45, 47, Fig. 1b, on printed circuit board 40. When key 12 is depressed arid shaft 14 depresses plate 26, shaft 16 engages superimposed cantilever strips 38 and 30 which are resilient and which deflect downwards and the user encounters increasingly greater resistance until the tip of shaft 16 moves past the contilevers 38, 30 and key 12 snaps down, cantilever 38 entering a recess in shaft 16, the user feeling the sudden change in resilience. When key 12 is released, springs 28a, 28b return key 12 upwards and shaft 16 encounters resistance only from the tip of cantilever 38 which is overcome by springs 28a, 28b. There may be a plurality of mechanisms on the same keyboard, and keys 12 may be retained in the keyboard by recesses 15 on shafts 14 engaging protrusions in holes 18. In a second embodiment, Figs. 3a, 3b, key 12 is replaced by a key 62 having a hollow shaft 64 to depress plate 26 towards transformer, etc., 44, and the resistance to movement is provided by a shaft 66 inside shaft 64, shaft 66 engaging deflector member 76 on buckled spring 70, spring 70 suddenly buckling in the opposite direction at the appropriate point of depression of key 12 to provide the tactile feedback. Once buckled in the opposite direction, spring 70 remains in that position since it is bi-stable until key 62 is again depressed when spring 70 returns to the position in Fig. 3a.
Patent GB-881307-A (GB)
Title: Improvements relating to phase discriminator circuits
IPC: H03D13/00
Filed: 1958-02-14
Abstract: 881,307. Phase discriminators. TELEFUNKEN G.m.b.H. Feb. 14, 1958 [Feb. 14, 1957], No. 4825/58. Class 40(5). A phase discriminator comprises a diode 1 to the same or opposite sides of which signals to be compared are applied across resistors 3, 2, the diode being shunted by a resistance 4 and non-linear non-rectifying resistor 5 in series so that at their junction a D.C. voltage is derived of magnitude and polarity corresponding to the phase difference. The signals may be a television synchronizing pulse 9 and a sawtooth wave 11 produced by differentiating at 7 a flyback pulse from a line scan generator and the discriminator output applied to stabilize the phase of the oscillator 6 determining the line scan generator phase.
Patent GB-105119-A (GB)
Title: New Azo-dyestuffs.
Inventor: FRANK GEORGE HERBERT
IPC: C09B39/00
Filed: 1916-04-03
Abstract: 105,119. Frank, G. H. April 3, 1916. Samples furnished. Azo dyes are obtained by coupling diazo or tetrazo compounds with yacca gum (obtained from Xanthorrhaea arborea or hastilis). According to an example, a product dying animal fibres yellow shades is obtained from sulphanilic acid and yacca gum; the diazo compounds of aniline, metanilic acid, p - nitraniline, p - aminophenol, or a - or # - naphthylamine, and the tetrazo compounds of benzidine, tolidine, dianisidine, m - or p - phenyllenediamine, or m - toluylenediamine, are also specified as parent materials. The products dye animal or vegetable fibres, and the dyeings may be after-treated with the usual mordants.
Patent GB-103048-A (GB)
Title: Improvements in Pyrometers for Metallurgical and like operations.
Inventor: FAIRHOLME FREDERICK CHARLES
IPC: G01K11/06
Filed: 1916-04-03
Abstract: 103,048. Fairholme, F. C., Barclay, W. R., and Stone, G. E. M. April 3, 1916. Pyrometers.-A pyrometer for metallurgical and other purposes, of the type which is operated by the fusion of metal, comprises an outer telescopic tube a', a<2>, a in which is a rod b, b' which normally rests upon a piece of fusible metal g. The portion a of the tube is made of refractory material for insertion into a crucible furnace &c. When the metal g fuses, the rod b, b<1> drops and moves a lever d, pivoted at d<1>, over an indicator plate f. To reset the lever d whilst the metal is solidifying, the outer end of the lever is temporarily held under a spring catch. The refractory portion b of the rod is connected to the metallic portion b<1> by means of a metal socket i having a series of slanting sawcuts i<1> in its sides. The socket is rammed with cement. A nut j may be fitted near the top of the rod to prevent it from striking the bottom of tube a on fusion of the metal. In a non-vertical modification, the rod b is operated by a spring or weighted lever.
Patent GB-859940-A (GB)
Title: Improvements in or relating to nuclear fuel elements
Inventor: FINNISTON HAROLD MONTAGUE
IPC: G21C3/20
Filed: 1949-02-22
Abstract: 859,940. Nuclear fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Feb. 17, 1950 [Feb. 22, 1949], No. 4870/49. Class 39(4). A mass of uranium enclosed in an Al can is separated from the can by a layer of a substance which prevents contact or diffusion of the U and Al. The substance may be graphite, Cu, Ag, and may be applied to the uranium, the can or both ; where graphite is used the uranium may first be oxidised at its surface by heating in air after degreasing in acetone and anodic treatment in aqueous citric acid solution. The cans are cleaned by treatment with trichlorethylene, with warm dilute NaOH solution and with dilute HNO 3 . Graphite is applied as a suspension in a volatile solvent, preferably alcohol. A metal coating may be applied by standard plating or evaporation methods. Specification 811,432 is referred to.
Patent GB-1378162-A (GB)
Title: Auxiliary lens member
IPC: F21S8/10
Filed: 1971-02-17
Abstract: 1378162 Vehicle headlamps JOSEPH LUCAS (INDUSTRIES) Ltd 1 Feb 1972 [17 Feb 1971] 4883/71 Heading F4R An auxiliary lens member for mounting on a headlamp of a road vehicle comprises a lens element 11 carrying a number of resilient clips 12 at least one of which is provided at a free end thereof with a ramp surface 16 which is so arranged to retain the lens element on the lamp such that movement thereof relative to the lamp in a predetermined direction facilitates removal of the lens element from the lamp. Preferably each clip 12 includes a part 13 attached to the lens, a part 14 extending away from the lens and integral, inwardly projecting lip 15 having a tapered form to define the ramp surface 16. The lips 15 engage in respective apertures (25), Fig. 2 (not shown), in a decorative bezel (22) surrounding the lens (17) of a sealed beam lamp unit (21). Rotation of the auxiliary lens element 11 in one direction moves the ramp surface 16 over the edge of the apertures (25) to urge the clip out of engagement therewith. Recesses 27 in lens element 11 engage integral lugs (26) on the lamp lens (17) to restrict movement of the auxiliary lens element 11 to one direction only. The sythetic resin auxiliary lens element 11 converts a headlamp into a fog or spot lamp or deflects the lamp beam laterally.
Patent GB-694311-A (GB)
Title: Improvements relating to flexible couplings
IPC: F16D3/58
Filed: 1950-02-27
Abstract: 694,311. Universal joints. MACBETH, C. Feb. 9, 1951 [Feb. 27, 1950], No. 4938/50. Class 80 (ii). A plurality of readily exchangeable flexible components, each comprising a rubber or like segmental block e bonded to plates g, f, connect the two main members a, b of a universal joint. The plates g are dished so as to conform to the inclined faces of the rubber blocks e and are secured in large holes c in the joint members by bolts h, the plates f being secured by bolts d. The large holes c are arranged intermediate small holes for the bolts d, so that adjacent flexible components are axially reversed in direction. The rubber blocks e may alternatively be of circular, polygonal, or other shape, narrow spaces preferably being provided between them to allow cooling. Two or more concentric rings of the flexible components may be employed. In a modification, the plates f are provided with hollow and internally screw threaded bosses by which they are secured to the joint members.
Patent GB-398099-A (GB)
Title: Improvements relating to the fractional distillation of oils and apparatus therefor
IPC: B01D3/14
Filed: 1933-02-17
Abstract: <PICT:0398099/III/1> In the fractional distillation of oils, a mixture of oil and vapour is introduced into a zone from which liquid is withdrawn to a second zone of lower total pressure, the vapour from the second zone passing back to the first zone.  As shown, oil is fed through a heater 13 to a tower 15 divided into compartments 17, 18 by a gastight partition 19.  Liquid collects on the partition 19 and passes through a conduit 33 and float-controlled valve 34 into the compartment 18, wherein the pressure is reduced by means of a steam ejector 26 having its suction intake 32 in the compartment 18. The ejector 26 delivers steam and oil vapour into the compartment 17, the vapours then passing up the tower 15 through bubble plates of standard construction.  Vapours from the top of the tower 15 pass to a surface condenser 48, from which condensed oil is collected in a tank 49, a part of the condensate from the tank 49 being returned to the tower.  Steam is condensed in a barometric condenser 51 connected to a steam-jet air pump 52. Means may be provided for withdrawing oil from intermediate parts of the tower and conducting it to subsidiary stripping columns. As shown, three stripping columns 66 supplied with oil through conduits 65 are provided.  Each column 66 is divided into compartments 68, 69 by a gas tight partition 70, and a lower pressure is maintained in each compartment 69 by a steam ejector 72.  Oil supplied to the top of a column 66 passes down the column over bubble plates therein, and then through a conduit 80 to a compartment 69. The ejector 72 draws vapour from the compartment 69 and supplies it to the compartment 68, the vapour passing up the column and finally through a pipe 85 to the tower 15.  The amount of oil withdrawn from the tower 15 through each conduit 65 may be controlled by a hinged or longitudinally movable weir device of the kind described in Specification 270,720, [Class 32, Distilling &c.].  Each conduit 65 includes a float-controlled valve 75.  The compartments 17, 18, or the compartments 68, 69, need not be in a single tower or column, but may be separate structures appropriately connected.  The apparatus may be adapted to operate at reduced, atmospheric or raised pressure.
Patent GB-215134-A (GB)
Title: Improvements in devices for testing the accuracy of weighing scales
IPC: G01G19/00
Filed: 1923-02-20
Abstract: 215,134. Marks, E. C. R., (Toledo Scale Co.). Feb. 20, 1923. Testing weighing-apparatus, portable devices for. - A device for testing weighing scales is attached to the scale by means of a yoke adapted to span the corner of the scale platform and secured at its ends to the scale structure by tension rods. A stand 25 supporting the testing beam 23 is placed on the platform 2 and the short end of the beam is coupled to the scale base 1 by means of a yoke 11 and a pair of hooked rods 12. By adding test weights 28 to a pan 27 and by adjusting a poise 29 the various dial and beam indications of the scale may be tested. Nuts 16 on the hooked rods 12 permit the beam 23 to be levelled with the assistance of a level 30. The points of attachment of the hooked rods 12 to the yoke may be varied to allow for various widths of platforms and bases. The testing device is arranged to exert a known pressure on the platform prior to the addition of test weights. In a modification, the testing beam is extensible.
Patent GB-710980-A (GB)
Title: Improvements in or relating to liquid level indicators
IPC: G01F23/24
Filed: 1952-02-26
Abstract: 710,980. Indicating liquid levels. BENDIX AVIATION CORPORATION. Feb. 26, 1952 [March 13, 1951], No. 5066/52. Class 123(1) An alarm for a vessel 4 containing two fluids of different thermal conductivities, e.g. a liquid 5 and air, comprises an electrically actuated alarm device, e.g. a lamp 14 or a buzzer, energized from a source 13 under the control of a thermistor (in a cartridge 7) normally in heat-conducting relationship with the liquid 5. On the liquid falling below a predetermined level 6 the thermistor, which consists of a thin rod of sintered vitreous materials and metallic oxides connected in series with a battery 13 and lamp 14, heats up and hence its resistance falls until sufficient current passes to illuminate the lamp 14. This will normally occur within 5 to 7 seconds of the exposure of the thermistor.
Patent GB-998136-A (GB)
Title: Preparation of melamine
Filed: 1962-02-09
Abstract: Melamine is made by heating urea and/or one or more pyrolysis products thereof in the presence of ammonia and a catalyst comprising BPO4 and/or AlPO4 adsorbed on a carrier, e.g. SiO2, Al2O3 or C. Examples describe the preparation of melamine using two reactors, the first of which has a fluidized bed of catalyst material and the other a fixed bed of catalyst material, passage of urea amounting to 100 gms./hour. Suitable reaction temperatures are above 220 DEG  C., e.g. 350 DEG  C. Specifications 767,344, 910,197, 910,198, 915,234, 926,594 and 969,298 are referred to.
Patent GB-1059204-A (GB)
Title: Gas purification apparatus
IPC: B01D53/22
Filed: 1965-02-05
Abstract: 1,059,204. Gas purification by diffusion. ENGELHARD INDUSTRIES Inc. Feb. 5, 1965 [Feb. 6, 1964], No. 5219/65. Heading B1L. Apparatus for diffusion purification of a gas, for example hydrogen, comprises chamber 12 containing diffusion tube 16, tube 16 being doubled back on itself to form two legs 16a, 16b with connecting portion 17, the legs being secured through end-wall 14 to open respectively to feed gas inlet 19 and off-gas outlet 18 and a portion of each leg being coiled helically with the coiled portion of both legs being coiled in the same direction. The tubes are made of a non-porous metal through which the gas to be purified can permeate, e.g. palladium or a palladium alloy for hydrogen. The feed gas is supplied under pressure. The diffusion chamber may be heated by means of electrical resistance wires 22. There is reference to maintaining the end wall 14 at a lower temperature than the main body of the chamber. In the apparatus of Fig. 2 (not shown), a plurality of diffusion tubes are coiled concentrically, one end of each tube opening into a common inlet header tube and the other end of each tube opening into a common outlet header tube.
Patent GB-349491-A (GB)
Title: Process of producing buty alcohol and acetone similtaneously by fermentation
IPC: C12P7/28
Filed: 1930-02-17
Abstract: Acetone and butyl alcohol are produced by the fermentation of carbohydrates which are acidulated prior to fermentation by the addition or fermentative generation of non-volatile organic acids, more particularly lactic acid, to prevent contamination during fermentation.  Efficient buffer mixtures which serve at the same time as nitrogeneous nutriment are also added.  The buffer index is periodically measured and the degree of buffering is adapted to the variations in acidity so as to increase with the latter and to attain its highest value with the maximum acidity, suitable additions being lactic acid, tartaric acid, citric acid, or oxalic acid.  An example is given of the fermentation of a mash of potatoes and maize meal and nutrient substances consisting of killed or autolysed yeast or malt sprouts in conjunction with urea, ammonium phosphate or ammonium sulphate.  The ferment used is a spore culture of the species B. Amylobacter A.M. and Bredemann.ALSO:Butyl alcohol and acetone are produced by the fermentation of carbohydrates which are acidulated prior to fermentation by the addition or fermentative generation of non-volatile organic acids, more particularly lactic acid, to prevent contamination during fermentation.  Efficient buffer mixtures which serve at the same time as nitrogenous nutriment are also added.  The buffer index is periodically measured and the degree of buffering is adapted to the variations in acidity so as to increase with the latter and to attain its highest value with the maximum acidity, suitable additions being lactic acid, tartaric acid, citric acid or oxalic acid.  An example is given of the fermentation of a mash of potatoes and maize meal and nutrient substances consisting of killed or autolysed yeast or malt sprouts in conjunction with urea, ammonium phosphate or ammonium sulphate.  The ferment used is a spore culture of the species B.Amylobacter A.M. and Bredemann.
Patent GB-715536-A (GB)
Title: Improvements in self-sealing fuel cells
IPC: C08K3/22
Filed: 1952-02-28
Abstract: A sealant layer for a bullet-sealing fuel cell comprises a zinc oxide free vulcanizate of a non-crystallisable and non-hardening synthetic rubber having a cohesive energy density of from 56 to 72, from 0.1 to 0.4 per cent. of sulphur, from 1 to 5 per cent. of magnesium, calcium or barium oxide, from 5 to 25 per cent. of carbon black and from 0.5 to 4 per cent. of an organic accelerator so that on vulcanization the maximum modulus attainable is from 25 to 150 lbs./square inch at 400 per cent. elongation.  Synthetic rubbers specified are homopolymers of conjugated diolefins, copolymers of butadiene with styrene or isoprene and terpolymers of butadiene with isoprene and butyl acrylate or with styrene and ethyl hexyl acrylate.  Accelerators used are tetramethylthiuram monosulfide, mercapto benzothiazole, diphenyl quanidine, and a butyraldehyde -aniline condensation product.  The compositions may be cured over a wide range, e.g. for 15 to 120 minutes at 370 DEG F., and do not harden or crystallise even at -50 DEG C.
Patent GB-373960-A (GB)
Title: Improvements relating to axle bearings
IPC: B61F15/22
Filed: 1932-02-22
Abstract: 373,960. Retaining lubricant in bearings. MATTHEWS, E. F., Elm Cottage, Watford Road, Wembley, Middlesex. Feb. 22, 1932, No. 5284. Convention date, Feb. 21, 1931. [Class 12 (i).] Escape of lubricant from axle bearings is prevented by rings 1, 2, parallel to one another and perpendicular to the axis of the axle and by a ring 3 inclined to the axis and positioned between the ring 1 and the bearing. The diameter of one or both rings 1, 2 is at least as great as that of the ring 3. The parts 1-3 may be made from steel plate.
Patent GB-109943-A (GB)
Title: Improvements in or relating to Steam Traps.
Inventor: WHITTAKER JOHN ARTHUR
IPC: F16T1/26
Filed: 1917-04-14
Abstract: 109,943. Whittaker, J. A., and Chippendale, A. April 14, 1917. Steam-traps.-The valve of a steam-trap is actuated by a tilting bucket adapted to tilt about a knife-edge arranged near the top edge of the bucket. The valve member j<1> is secured to a spindle j pivoted to the bucket l at k and provided with guide-wings j<2> working in the outlet tube g. A flange g<1> on the tube g and the valve seat h are held in a recess in the casing by a gland i which is threaded to receive the outlet pipe. The inlet is arranged at d behind a baffle e. A fitting m secured to the bucket bears against the knife edge n<1> on a pin n screwed to the casing and has side wings m<2> adapted to take on either side of the pin n.
Patent GB-105130-A (GB)
Title: Improvements in Supplying Fuel to Internal Combustion Motors and in Apparatus therefor.
Inventor: BURN LEWIS
IPC: F02M1/00
Filed: 1916-04-12
Abstract: 105,130. Burn, L., Gall, W. A., and Axon, O. April 12, 1916. Spray carburettors.-Three nozzles B are supplied respectively with light fuel such as petrol or benzol, heavy fuel such as paraffin, and water from three separate float chambers, and are enclosed by a chamber C which has a perforation c over each nozzle, an air port c<1>, and a tubular shank c<3> with an air-adjusting screw c<2>. An airregulating sleeve D provided with a lever d<1> controls the air port c' and air ports a, from which air passes over the perforations c to the induction pipe a'. The fuel is heated by exhaust gases passing through a chamber A' in the bottom of the body A; or a heater may be interposed in the paraffin and water supply pipes or in the induction pipe. The float chambers are supplied from separate tanks through pipes provided with separate valves, or with valves so arranged that, when the light fuel supply is on, the paraffin and water are cut off, and vice versa.