baber/WOPTO huggingface dataset:
Patent GB-1068778-A (GB)
Title: Improvements in or relating to classification apparatus
Inventor: BEUZEVAL DOUGLAS ROY
IPC: B07B7/02
Filed: 1965-04-27
Abstract: 1,068,778. Pneumatic Separating. AMBUCO Ltd. April 22, 1966 [April 27, 1965], No. 17723/65. Heading B2H. An air classifier comprises a chamber 10 having at its top an exhaust duct 16 across which extends a cascade of spaced vanes 15 and a lateral inlet 13 via which particulate material in an air stream is delivered into the chamber 10 in a direction transversely to the vanes 15 whereby a major portion of the air stream is abruptly deflected into the duct 16 causing entrainment of the lighter particles through the duct. The heavier particles continue in a minor portion of the air stream towards a concave lateral wall 12 of the chamber or fall under gravity towards a grid-like floor 17 which provides access to the closed interior of a hopper 18. The wall 12 causes a circulation of the minor portion of the air stream so that heavier particles in that. portion of the air stream are frictionally more retarded than the lighter particles by contact with the wall 12 and any heavy particles falling towards the floor 17 is scrubbed by the circulating air and the circulation-borne particles so that adhering lighter particles are detached from them. The chamber 10 has a second concave wall 11 facing the wall 12. Secondary air may be introduced through a conduit 22, 19 and directed along the floor 17 in order to assist the circulation in the chamber. In order to vary the sizes of particles being separated, the secondary air volume may be varied by a butterfly valve 20 in the conduit 22 and its velocity may be varied by increasing or decreasing the cross-section of the conduit 19 by means of a pivotable flap portion 23. The vanes 15 are pivotable so that their angle of incidence to the incoming air may be altered according to the nature of the material to be classified.
Patent GB-853844-A (GB)
Title: Improvements in or relating to methods for producing quilted structures
Inventor: GRAY THOMAS EDWARD HORACE
IPC: A41D31/00
Filed: 1956-06-08
Abstract: 853,844. Quilting. DUNLOP RUBBER CO. Ltd. May 22, 1957 [June 8,1956], No. 17726/56. Class 142(4). [Also in Group VIII]. Quilted materials, particularly proofed materials for making inflatable protective immersion suits, comprise two layers joined at intervals by pairs of patches extending through holes in the layers and adhesively secured to the material of the layers. As shown in Fig. 2 pairs of vulcanised rubber patches 1 having unvulcanised rubber adhesive on their adjacent faces are applied to holes 3 in rubber-proofed fabric layers 2 so as to adhere to themselves and the surrounding fabric, the adhering surfaces being first moistened with rubber solvent and then subjected to light pressure and heat. Alternatively, Fig. 4, unvulcanised patches may be placed on each side of the holes, the material then being pressed by heated platens 9 between rubberised fabric blankets and plates 7 having holes 8, slightly bigger than the patches, the latter being thus vulcanised together and spread to form tapered seals 10.
Patent GB-1084963-A (GB)
Title: An improved variable speed gear
IPC: F16H15/12
Filed: 1965-04-28
Abstract: 1,084,963. Variable-speed friction gear. G. LEE and F. HOLT. Jan. 5, 1966 [April 28, 1965], No. 17787/65. Heading F2D. A variable-speed friction gear comprises a barrel-shaped idler roller 50 bearing against opposed faces of parallel driving and driven discs 42, 43 and traversed across the discs by a screw 83 attached to a yoke 77 provided with a transverse pin 82, about which the roller 50 can pivot to vary its areas of contact as the ratio is varied and thus reduce wear. The arrangement includes axial loading springs 67 and a screw loading cap 53.
Patent GB-385328-A (GB)
Title: Improvements in articles of bonded granular material and methods of making the same
IPC: B24D7/00
Filed: 1931-06-19
Abstract: 385,328. Moulding abrasive, porous, &c. materials. NORTON CO., New Bond Street, Worcester, Massachusetts, U.S.A. June 19, 1931, No. 17849. Convention date, June 19, 1930. [Class 87 (ii).] Articles of abrasive material, such as silicon carbide and crystalline alumina, are made by mixing together definite proportions of abrasive and bonding materials and then compressing a definite weight of the mixture to a predetermined volume. Fig. 8 shows the moulding apparatus in which the descent of the ram 23 of the hydraulic press is limited by interchangeable gauge blocks 20 engaging the top of the mould. The invention is applicable specially to the manufacture of grinding wheels, the object being to duplicate wheels having standard abrasive qualities without the necessity of employing an individual test to each finished wheel, but it may be used in the manufacture of porous materials such as filterplates or for tiles and the like. Reference is made also to the production of series of standard grinding wheels, each showing the same difference in hardness and grinding qualities from the next in the series, by keeping the volume percentage of the bond constant throughout the series and progressively varying the quantity of abrasive or alternatively by keeping the amount of abrasive constant and progressively varying the quantity of bond.
Patent GB-430772-A (GB)
Title: Improvements in and relating to the treatment of non-ferrous alloy castings
IPC: B22D19/00
Filed: 1934-06-18
Abstract: 430,772. Making castings non-porous- ARMSTRONG SIDDELEY MOTORS, Ltd., Coventry, HIGH DUTY ALLOYS, Ltd., and DEVEREUX, W. C., 81, Buckingham Avenue, Trading Estate, Slough, Buckinghamshire, and OLIVER, C. S., The Red House, Warwick Avenue, Coventry. June 18, 1934, No. 17965. [Class 83 (i)] Magnesium and other non-ferrous alloy castings are rendered impermeable by impregnating with a readily fusible alloy of low viscosity and adapted to unite, with the parent casting. An alloy con. taining 42 per cent of bismuth, 24À5 of lead 23 of tin, and 10À5 of cadmium may be used for castings of magnesium alloyed with either aluminium, copper, zinc, cadmium or manganese or with more than one of these metals. Wood's metal may also be used. The casting may be placed in a heated tank which is then evacuated and filled with the fusible alloy or, if of suitable form as the crank casing 1, it may be rendered tight by washers 2 and packing 3 and itself filled. One closure 4 has an opening through which the molten alloy and then a plunger, for applying pressure, is introduced.
Patent GB-955996-A (GB)
Title: Improvements in or relating to an electric switch for fully automatic washing machines
IPC: H01H43/12
Filed: 1960-05-23
Abstract: 955,996. Make-and-break switches, mechanical. HOLZER PATENTS A.G. May 23, 1960 [June 1, 1959; June 15, 1959; May 6, 1960], No. 18037/60. Heading H2B. A switch suitable for controlling an automatic washing-machine comprises a casing enclosing at least one rotary control disc 6 wherein at least one projection 2 to support the disc at a predetermined separation from the casing is fixed to the casing and a spring 7 is provided to urge the disc towards the projection; the disc having concentric cam tracks sensed by sensing members 5 arranged to cause contact actuation, for example as in Specification 893,992. The rear face of the control disc has recesses (not shown) for sliding contacts (not shown) which travel over a printed circuit (not shown) forming a cover for the casing, the sliding contacts controlling indicating and/or auxiliary circuits and the sensing members 5 controlling the main operating circuits of the washing-machine. An annular ring 52, Fig. 6, forms the supporting projection in an embodiment comprising a main control disc 21 and an auxiliary control disc 62 rotatable within disc 21 by a spindle 22, the disc 21 being separately driven through external toothing 64 from a motor 67. The disc 62 runs on ball-bearings at 71 guided in cages (not shown), as can be ball-bearings (not shown) for use with disc 21, which is urged against projection 52 by a spring (not shown). Sensing members 25 and 63 are located in the same sensing plane 61 and sense cam tracks on the two discs 21, 62, respectively.
Patent GB-1277360-A (GB)
Title: Film-forming compositions
IPC: C23C18/02
Filed: 1970-04-15
Abstract: 1277360 Osmium film-forming compositions ENGELHARD MINERALS & CHEMICALS CORP 15 April 1970 [16 April 1969] 18064/70 Heading C4A [Also in Division C7] An osmium film-forming composition comprises a complex of osmium tetroxide and an ethylenically unsaturated organic component dissolved in an organic film-forming medium. The composition is applied to a substrate and the coating heated in an oxygen-free atmosphere to remove the organics and deposit an osmium film. A metallo-organic compound of Ir, Ru, Pt, Pd, Rh or Ni may also be present, yielding a co-deposit or alloy with Os according to temperature. The ethylenically unsaturated compound is preferably a C 4 -C 18  compound containing a single unsaturated bond, e.g. a terpene, fatty acid, octylene or decylene. The complex is formed in a solvent, preferably tbutanol, t-octylamine or chloroform, the latter two also serving as film-formers. In Examples 1-3 the compositions used are (1) OsO 4  and α-pinene in CHCl 3 , (2) OsO 4  and d-limonene/ cyclohexane in CHCl 3  or in oil of peppermint, (3) Os pinene glycolate and Ir sulphoresinate in chloroform.
Patent GB-753321-A (GB)
Title: Improvements in regulating circuits utilising saturable reactors
Inventor: PETTIT RICHARD DAN
IPC: G05F1/33
Filed: 1953-06-30
Abstract: 753,321. Automatic regulation. BRITISH THOMSON-HOUSTON CO., Ltd. June 30, 1954 [June 30, 1953], No. 18108/53. Class 38 (4). The invention relates to self-regulating circuits for obtaining a constant current from a variable voltage source by employing two series-connected, polarized saturable reactors as described in Specification 670,838 (i.e. a current through the windings increases the flux in one reactor and reduces it in the other). According to the invention the use of additional compensating windings on the reactors (as in Specification 670,838) is avoided, and compensation for fluctuations in voltage or frequency is provided by a linear reactor energized from the supply to pass a current through the load in antiphase to that passed by the saturable reactors. Specification 694,756 also is referred to.
Patent GB-1019055-A (GB)
Title: Improvements in or relating to filling heads
IPC: B67C3/26
Filed: 1964-05-01
Abstract: 1,019,055. Bottling. CROWN CORK & SEAL CO. Inc. May 1, 1964 [May 2, 1963] No. 18150/64. Heading B8T. A filling head for a counter-pressure machine comprises a liquid tube 6 mounted beneath a tank 1 containing liquid 2 under pressurized gas 3 and open to the tank interior when a valve means 11 is open, a gas tube 15 surrounding and spaced from tube 6, a pipe 16 offset with respect to the tube 15 and which communicates via a hole 17 in the filling head with the space between the tubes 6 and 15, and a valve control mechanism 14 which is operatively connected to said valve means 11 and also to a gas valve means 21. When a bottle moves upwardly around the tubes 6 and 15 a cam 23 turns and lifts valve 21 off its seat so allowing gas 3 to flow through pipe 16, hole 17 and the space between tubes 6 and 15 to expel air contained in the bottle through a gap between tube 15 and the bottle neck and grooves 31 to the atmosphere. By the time the bottle comes into contact with a centering bell 29 slidably mounted on the tube 15 it is purged of air and excess gas is released to atmosphere until the bell 29 is pressed with an annular seal 32 against the filling head, thereafter pressure building up within the bottle until it balances the pressure in the tank. The valve means is then lifted due to the equalized pressure under the action of a spring 33 and liquid flows by gravity into the bottle through the tube 6. During filling the valve 21 remains open and gas vents back into the tank from the bottle through the pipe 16. When the liquid in the b ttle reaches a hole 35 in the tube 15 the return of gas is halted and pressure in the bottle neck prevents further filling. The control mechanism now shuts valves 11 and 21, and a swift valve 28 opens and reduces to atmospheric pressure the gas in the bottle. When the bottle begins its downward travel the centering bell 29 is released and a passage 26 connecting the tube 6 to the atmosphere is opened. Atmosphere air enters tube 6 and drives out into the bottle liquid contained in tube 6. The filled bottle is then removed from the bell 29 for closing.
Patent GB-181664-A (GB)
Abstract: 181,664. Alexander, A. E., (Peters- Morse Manufacturing Corporation). Feb. 7, 1921. Adding - apparatus with operating means; governing speed of operation.- In a lever-operated adding-machine, the lever may move at a different rate from the type-carrier actuating - mechanism, the movement of which is regulated by a dash-pot. Loose on the main shaft 200 is a cam plate 155, from which are derived the main operating movements of the machine and which is connected by a. link195 with a second shaft. 204. A lever 223 loose upon shaft 200 is linked to an arm fixed to shaft 204 and is pinned to a dash-pot of usual construction, so that shaft 204 and cam 155 are controlled in their movements upon the forward stroke of the handlever 5. A master cam - plate 201 secured to shaft 200 has a pin 202 supporting a bifurcated plate 206 connected by springs 207 with a similar plate pivoted on an arm 90 of the shaft 204 which is thus constrained to follow the forward movement of shaft 200 but at the controlled speed due to the dash-pot. When thehand-lever is moved forward, a toggle lock is constituted by links one of which, 212 is visible in Fig. 3 but when the controlled shaft 204 has completed its movement a pin 215 on a bifurcated link 205 pivoted to arm 90 and straddling the pin 202 engages and depresses the link 212 so as to break the toggle to allow the hand-lever to return under the action of a spring 246. In this return movement an arm 245 fast on shaft 200 engages by a bent-over portion 245<b> the cam 155 so as positively to return it to normal position. Interlocking; printing totals.-Movement of the operating lever is prevented unless the totals lever 94 is in either of its correct positions, by means of a spring-controlled pivoted arm 349 the end of which deflects the full-stroke pawl 216 into a blocking position when a. pin 94<y> on the totals lever pushes back spring-controlled lever 345 having a cam edge at 345<a>. The lever 94 can only be moved when the operating handle is in its normal position as otherwise the pin 202 of plate 201 normally bearing against the lever 345 allows the latter to move rearwardly to lock the pin 94<y>.
Patent GB-1351708-A (GB)
Title: Load cell
IPC: G01L1/22
Filed: 1971-05-28
Abstract: 1351708 Load cells BOFORS A B 28 May 1971 [1 June 1970J 18175/71 Heading G1N A load cell comprises two members connected by intermediate parts including one or more membranes located symmetrically with respect to the main areas. In one embodiment Fig.1a two members 1, 2 together forming a rectangular block, are separated by oblique slots 14 and a central hole 11, leaving end membranes 13, 13' and a central membrane 5 in hole 11. Mutually perpendicular strain gauges 12a, 12b each at 45 degrees to the main axis 15 are attached to each side of membrane 5 and connected in a bridge circuit to measure deformation produced by forces P1, P2, due to shearing stress, but cancel changes due to bending and/or tension. In another embodiment Fig.2a two membranes 5, 5' are provided at the ends of a single slot 14. Other configurations are described.
Patent GB-790895-A (GB)
Title: Improvements relating to axial-flow compressor or turbine stator vane assemblies
Inventor: SMITH LESLIE R
IPC: F01D9/04
Filed: 1956-06-13
Abstract: 790,895. Compressor and turbine stator vane assemblies. GENERAL MOTORS CORPORATION. June 13, 1956, No. 18253/56. Class 110 (3). An axial-flow compressor or turbine stator vane assembly comprises a pair of arcuate, radially-spaced concentric shroud members 10, 12 having openings receiving tenons 48, 50 at opposite ends of the vanes, the tenons forming at least in part a continuation of the aerofoil vane shape. Each opening is so shaped that its wall is partly relieved from the associated tenon but contacts it sufficiently to hold the vane in fixed angular position. The outer arcuate member 10 is of channel section with axially-extending flanges, and the inner member 12 comprises a pair of channel section members one within the other. The tenons 48 and 50 are formed by removing the leading and trailing edge portions at the two ends of the vane. An opening 64 in the outer arcuate member 10 for receiving the tenon 48 is shown in Fig. 5, and comprises a straight wall 68, a pair of end walls 70, 72 at right angles thereto, and a curved wall 66, the tenon contacting the opening at three points 74, 76 and 78. The radius of curvature of the curved wall 66 is greater than that of the convex blade surface 56. The tenons may be secured either by brazing or by upsetting.
Patent GB-1421829-A (GB)
Title: Process for bonding together cured polymer films
IPC: B29C35/12
Filed: 1973-04-16
Abstract: 1421829 Laminating rubber layers STAMIOARBON BV 16 April 1973 [26 April 1972] 18256/73 Heading B5N Cured films of polychloroprene, butyl rubber and rubbery ethylene/α-alkene copolymers are bonded by placing therebetween a layer of curable rubbery polymer containing a curing agent and heating under pressure in a highfrequency electric field, e.g. 0À1-500 megacycles/sec. In the ethylene copolymers, the α-alkene may be propylene or butylene-1 and dienes may be present. The curable rubbery polymer may be an ethylene copolymer as above (including halogenated ethylene copolymers); polychloroprene; butyl, chlorobutyl, bromobutyl or acrylate rubber; butadiene styrene or butadiene-acrylonitrile copolymer; natural rubber; polyisoprene; or polybutadiene. The curing agent may be peroxide, sulphur, ZnO or MgO, such compounds preferably being present in amount 0À5-5 wt. per cent based on the rubbery polymer. Accelerators, retardants, heat-inducing material (preferably carbon black in amount 20-200 wt. per cent based on the rubbery polymer) and conventional rubber additives may also be included. In examples, ethylene-propylene terpolymer rubbers are bonded by compositions of similar rubbers or of butyl rubber.
Patent GB-839022-A (GB)
Title: Process for the electrical heating of titanium tetrachloride vapor
Inventor: SCHAUMANN HOLGER HEINRICH
IPC: C01G23/07
Filed: 1957-06-07
Abstract: As a step in the production of titanium dioxide pigment titanium tetrachloride is heated to an elevated temperature, e.g. 2000 DEG C., by passing it through an enclosed zone electrically-heated by carbon resistors.  Minor amounts of chlorides of other metals, e.g. 1 to 2% of aluminium chloride, may be added to the titanium tetrachloride to obtain a product containing Al2O3.  It is stated that the presence of free halogen, e.g. free chlorine, acts to suppress the tendency of metal chlorides to become subchlorides at high temperatures, and accordingly 1% up to 5% of free chlorine may also be added to the titanium tetrachloride.  Specification 707,560 is referred to.
Patent GB-1067852-A (GB)
Title: Reactive dyes containing halozenopyrimidinyl-carbonyl-amino residues
Inventor: GUENTHARD JACQUES
IPC: C09B62/20
Filed: 1964-05-01
Abstract: The invention comprises water-soluble reactive dyes containing at least one group of formula <FORM:1067852/C4-C5/1> wherein hal is Cl or Br, A is H or CH3 and R is H or alkyl. The dyes are prepared by treating a dye or dye intermediate containing an acylatable NH2 or NH alkyl group with a 2,4-dihalogeno-pyrimidine-5-carboxylic acid halide or its 6-methyl derivative and when an intermediate is used converting this into a dye by an azo coupling or condensation reaction.  The dyes may be used to colour leather, natural and synthetic polyamide fibres and preferably cellulose materials by the usual reactive dye processes.  In examples the preparation of mono- and dis-azo, metallized azo, stilbeneazo, anthraquinone and phthalocyanine dyes is described.  Reference has been directed by the Comptroller to Specification 903,048.ALSO:1 - Amino - 3 - (21,41 - dichloropyrimidinyl-51-carbonylamino)-benzene-6-sulphonic acid (as Na salt) is prepared by condensing 1,3-diaminobenzene-6-sulphonic acid in aqueous NaOH with 2,4 - dichloropyrimidine - 5 - carboxylic acid chloride dissolved in acetone.  2,4 - Dichloropyrimidine - 5 - carboxylic acid- (51 - hydroxy - 71 - sulpho - 21 - naphthyl) - amide is prepared as above using 2-amino-5-naphthol-7-sulphonic acid. Reference has been directed by the Comptroller to Specification 903,048.
Patent GB-1467213-A (GB)
Title: Flame detectors
IPC: F23N5/08
Filed: 1975-05-01
Abstract: 1467213 Flame detectors CERBERUS AG 1 May 1975 [10 May 1974] 18290/75 Heading G1A In a flame detector, radiation from the flame is transmitted to a photo-electric element via a device which causes the spectral content of the radiation falling on the element to vary periodically. The device may comprise a red filter and a blue filter rotated in the radiation path by a disc, or may be a pair of stationary filters combined with Kerr cell light valves, or may be a single filter whose spectral transmission is electrically controlled such as a liquid crystal or a piezo-controlled interference filter. The flame detector only indicates the presence of a flame when the periodic component of the photo-electric element output exceeds a threshold value. In Fig. 1 the filters are carried by disc D, and the signal from the photo-detector P is demodulated at A against a timing signal from motor M, to give the ratio of the red and blue content of the flame. Provided the ratio is above a given value, a signal is generated at S to indicate the presence of the flame. An electrical filter may be included to restrict response to 8-25 Hz, the flicker frequency of the flame. It is also possible to place a second photo-detector so that it detects flame flicker, the periodic variation of spectral content caused by the filters only being permitted when the second detector indicates flicker.
Patent GB-1511076-A (GB)
Title: Lock nut assembly
IPC: F16B39/34
Filed: 1976-05-05
Abstract: 1511076 Self-locking nuts FUJI SEIMITSU MFG CO Ltd 5 May 1976 [26 Dec 1975] 18426/76 Heading F2H A lock-nut 2 has an annular recess 7 in the inner periphery of one end face and, fixed to said end face, a resilient wire clamp 5 having portions to engage in the thread groove of a bolt 1. The clamp 5 may be fixed by caulking an annular rib 3 on the end face, Figs. 1, 2 or by welding, Fig. 8. The wire has a rounded cross-section. Eight planforms for the clamp are described.
Patent GB-1242947-A (GB)
Title: Direct current electrical resistance welding system
Inventor: ERLANDSON PAUL MCKILLOP
IPC: B23K11/24
Filed: 1969-04-11
Abstract: 1,242,947. Control systems for resistance welding apparatus. CONTINENTAL CAN CO. Inc. 11 April, 1969, No. 18687/69. Heading H2H. In a resistance welding apparatus arcing at the electrodes is diminished by arranging that the inductance of the supply leads is small and, in a preferred embodiment, by causing the welding current to be reduced instead of interrupted. Welding electrodes 16 are connected to a D.C. source 11 by conductors 13, 14 which are placed as close to each other as is practical. The electrodes 16 are shunted by a switch 18 controlled by devices 19, 20 for starting and stopping a weld. The devices 19, 20 comprise phototransistors sensitive to the presence or not of cans being seam welded by the roller electrodes 16, the device 19 starting a weld by rendering the switch 18 non-conductive whereby all the current in leads 13, 14 passes through the electrodes 16. To stop welding the device 20 renders the switch conductive whereupon the major portion of the current in the conductors 13, 14 is by-passed from the electrodes 16. If desired the switch 18 may be placed in series with the electrodes 16 in which case the welding current is interrupted to terminate welding. The switch 18 comprises a bank of transistors.