baber/WOPTO huggingface dataset:
Patent GB-636293-A (GB)
Title: Improvements relating to the anodic oxidation of aluminium and its alloys
IPC: C25D11/06
Filed: 1948-02-02
Abstract: 636,293. Anodic oxidation of aluminium and its alloys. ROVAL, Ltd., (formerly INTERNATIONAL CORRODELESS, Ltd.), ROBERTS, S. T., and TAYLOR. R. W. Feb. 2, 1948. No. 3048. [Class 41] A process for the anodic oxidation of aluminium or its alloys comprises the use in the electrolytic bath of an addition agent obtained by evaporation of the mother liquid obtained in the sulphite treatment of wood pulp in the manufacture of cellulose, the agent consisting approximately of 16.5 per cent mineral matter, 80 per cent organic matter and 3.5 per cent water: The chief constituent of the mineral matter is calcium lignin sulphonate, and the chief purely organic constituents are dextrose, xylose, resin, acetic acid, tannin and gums. Instead of the solid material obtained by the evaporation of the mother liquor, the liquor itself may be added to the bath.
Patent GB-793588-A (GB)
Title: Improvements in or relating to pulse generators for cathode ray oscillographs
IPC: H03K5/00
Filed: 1956-01-31
Abstract: 793,588. Cathode-ray oscilloscopes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Jan. 31, 1956 [Feb. 3, 1955], No. 3072/56. Class 40 (7). In a cathode-ray oscilloscope for displaying the frequency transmission curve of a circuit, a frequency calibration mark is produced by varying the frequency of an oscillator synchronously with the timebase, applying an output from said oscillator to a frequency discriminator tuned to the calibration frequency giving an output, Fig. 2a, which is applied to a pentode limiter 10 whose output, Fig. 2c, is differentiated by the C.R. network 12, 16 to give a pulse, Fig. 2d, which is applied through an amplifier 15 to the grid 13 of the C.R.T. 14. As shown, the discriminator is of the phase-shift type and comprises a double-tuned transformer 1, 2 with a capacitor 5 between the centres of the primary and secondary windings, the centre of the secondary winding being also connected to the junction of two load resistors 6, 7 connected in series, with two diodes 4, 4<SP>1</SP> across the secondary winding.
Patent GB-100301-A (GB)
IPC: C09C1/14
Filed: 1916-03-02
Abstract: 100,301. International Color & Chemical Co., (Assignees of Ramage, A. S.). April 16, 1915, [Convention date]. Sulphuric acid.-Sulphide ores of lead, such as galena, are roasted so as to produce a product containing lead oxide, sulphate and sulphide in about equal proportions. The roasted ore is treated with concentrated nitric acid, forming lead nitrate and sulphate. while nitrous fumes escape and are led to a tower and reacted with the sulphurous acid produced by the roasting of the ore to obtain sulphuric acid containing nitrous compounds, which acid is then added to the lead sulphate and nitrate to produce lead sulphate and regenerate nitric acid. Specification 100,300, [Class 1 (iii), Oxides &c., Metallic]. is referred to,
Patent GB-130553-A (GB)
Title: Improved Medal-ribbon Bars.
IPC: A44C3/00
Filed: 1919-02-10
Abstract: 130,553. Coulthard, Ltd., W., and Coulthard, E. S. Feb. 10, 1919. Attaching medal ribbons to wearing-apparel.- Means for securing a ribbon to a medal-ribbon bar without sewing comprises a plate a provided on its rear side with rows of pressed-out spikes d<1>, d<2> inclined towards the centre of the plate. The ribbon is folded round the plate and its edges secured by the spikes, as shown. The plate a is secured to a back plate b having a brooch pin and two end notches g, g<2> by means of a hook f engaging in the notch g and a spring catch f<2> which snaps into the notch g<2>. The plates a, b may be hinged together and formed with a spring catch at the other end. In a modification, Fig. 12, the back plate has tongues h which engage in gaps h<1> formed in the ribbon-carrying plate.
Patent GB-764285-A (GB)
Title: Ternary zirconium alloys
IPC: C22C16/00
Filed: 1955-02-03
Abstract: A ternary zirconium-base alloy, having high tensile strength at elevated temperature and good ductility and corrosion resistance, has a composition within the following range .Sn.1.5-7.0 per cent .Mo.0.2-3.5 per cent .Zr.the remainder
Patent GB-901458-A (GB)
Title: Improvements in or relating to electric switching circuits
Inventor: TREADWELL RICHARD JULIAN
IPC: G05D1/00
Filed: 1960-01-29
Abstract: 901,458. Automatic control systems for aircraft. SMITH & SONS (ENGLAND) Ltd., S. Dec. 30, 1960 [Jan. 29, 1960], No. 3220/60. Class 38 (4). An electric switching circuit includes selfholding relays connected in two interconnected networks of the star and/or mesh type. As applied to an aircraft automatic pilot, control signals from identical sources control a number of servomotors which are coupled to a common control surface through electromagneticallyoperated clutches. In some of the arrangements described, each clutch is controlled by a series-type circuit, as in Fig. 1A, while, in others, each clutch is controlled by a paralleltype circuit as in Fig. 1B. In Fig. 1A operation of a push-button 9A energizes a self-holding relay 4A from a source 2A to energize a clutch 1A, provided a switch 7A is closed and terminals 8A are connected together. Under excessive torque conditions clutch-operated contacts 6A open to disengage the clutch. In Fig. 1B operation of a push-button 12A permits energization of a self-holding relay 11A from a source 10A to permit energization of a clutch 15A provided a switch 16A is open and terminals 17A are not connected together. Under excessive torque conditions clutch-operated contacts 14A close to disengage the clutch. Fig. 2A shows how three series-type clutch controlling circuits, represented by SA, SB, SC, are connected in mesh, with the polarities of their sources in the same sense, when three servomotors are involved. Auxiliary contacts 4A2, 4B2, 4C2 associated with the relays of the three circuits are so arranged in star so that if one clutch is disengaged a circuit is still complete for the other two. If, however, either of the two remaining clutches becomes overloaded, both are disengaged. The other manuallyoperated switches in the star circuit permit a single clutch to be engaged for test purposes. In a modification auxiliary contacts are arranged in mesh instead of star and the same result achieved. Fig. 3A shows how three paralleltype clutch-controlling circuits, represented by PA, PB, PC, may be connected in star, with the polarities of their sources in the same sense, when three servomotors are involved. Auxiliary and manually-operated contacts are connected in mesh, but may alternatively be connected in star, to achieve the same results as are achieved with the series-type clutch-controlling circuits. Arrangements involving more than three clutches and, consequently, more than one auxiliary contact associated with each relay are described. These arrangements also ensure that one clutch is not left engaged, by itself. Alternative circuits for initiating energization of the relays-with contact arrangements and/or resistance-condenser networks to allow for the build-up time of current due to the inductance of the clutch winding are described. Disengagement of the clutches by contacts operated under electrical fault conditions is referred to. A.C. operated circuits are also referred to.
Patent GB-1185662-A (GB)
Title: Gas Turbine Engines
Inventor: LANE RAYMOND JOHN
IPC: F02K3/06
Filed: 1967-01-20
Abstract: 1,185,662. Gas turbine by-pass type jet engines. ROLLS-ROYCE Ltd. Jan.17, 1968 [Jan.20, 1967], No.3223/67. Headings F1G and FIJ] A gas turbine jet engine of the by-pass type is provided with auxiliary combustion equipment either in the by-pass duct or in a duct downstream of the turbine system. A flow-choking device is located in the by-pass duct between the auxiliary combustion equipment and the inlet to a second compressor of the engine, the device being arranged to pass without choking a downstream flow of by-pass air but when approached by a rarefaction wave travelling upstream and of sufficient amplitude to cause the second compressor to go into surge should the wave reach the inlet of the second compressor, will choke and prevent passage of at least the rear portion of the rarefaction wave. The engine shown comprises LP compressor 11, IP compressor 12 and HP compressor 17, combustion equipment 20, HP turbine 18 and LP turbine 13, the HP turbine being connected to drive the HP compressor by shaft 19, and the LP turbine being connected to drive the LP and IP compressors by shaft 14. Part of the air from the LP compressor passes through by-pass duct 21 direct to the jet pipe 22 in which is disposed reheat combustion equipment 30, 31, 32, 33. An annular Venturi 42 is disposed at the inlet of the by-pass duct and operates to prevent a rarefaction wave resulting from a sudden cessation of reheat operation from passing upstream to the inlet of the IP compressor. The Venturi is so designed that in normal operation the flow of by-pass air therethrough is below sonic speed. A blow-off valve 45 is also provided at the outlet of the IP compressor 12 being controlled by the pressure drop across the Venturi, the pressures being sensed by probes 46, 47 and transmitted to pressure ratio sensor 48. The engine is provided with a variable area jet nozzle 36. In place of an annular Venturi 42 a series of Venturis defined between radial vanes such as 27 may be provided. The engine may alternatively have combustion equipment in the by-pass duct.
Patent GB-174947-A (GB)
Title: Improvements relating to dyeing silk black
Filed: 1922-02-03
Abstract: A process for weighting silk, silk waste, and yarns, fabrics, &c. of silk or silk waste which are to be dyed black consists in first weighting the silk by the usual tin-phosphate process and then treating it in a boiling lather or froth bath of a haematein solution, to which silkworm chrysalides boiled in water have been added.  Soap, soda, alkali-metal silicate, soda lye, or potash lye may be added to the froth bath.  Aniline dye may be added to the froth bath; or the material may be dyed in a separate aniline-dye bath.
Patent GB-1109927-A (GB)
Title: Apparatus for holding and supporting plants
IPC: A01G9/12
Filed: 1966-01-25
Abstract: 1,109,927. Plant pots. F. S. TREGASKES. 17 Jan., 1967 [25 Jan., 1966], No. 3285/66. Heading A1E. Apparatus for holding and supporting plants comprises a hollow body 1 for holding soil and plant supporting means having radiating arms 4 which are detachably engageable with sockets 2 spaced around the perimeter of the hollow body, the supporting means also including a tube 5 arranged to stand vertically above the hollow body. The body 1 is open-ended and stands in a tray 3 so as to form a space to receive grit, ashes or the like. The tubes 5 of adjacent apparatus may be connected by ties 6 which also serve for the attachment of branches of the plant. The tube 5 may be formed in segments having spigot and socket connection.
Patent GB-772553-A (GB)
Title: Improvements in or relating to lifting devices and the like
IPC: B66D1/74
Filed: 1955-02-04
Abstract: 772,553. Winches. WARBURTON, R. E. L., and SANDFORD, W. H. Jan. 10, 1956 [Feb. 4, 1955], No. 3309/55. Class 78 (5). A portable winch comprises housing 10 for attachment at 11 to a support, a rope drum 12, a sleeve 14 having a screw-thread 18 and a clamping face 23 so that, by manual means, the sleeve takes a preliminary grip upon the rope and such that, if slipping of the rope occurs, the sleeve automatically tightens its grip. As shown, rope 15 passes through fairlead 36 and round drum 12 and out through fairlead 37, the drum being manually driven by handle 21 and worm 19, the latter engaging teeth 12B formed on the drum. The rope is clamped, to avoid slippage over the drum, by sleeve 14 which is screwed down over the drum and on to the rope by manual operation of cap 27, a spring 29 being provided to co-operate with stop 30 so as to limit the distance to which the sleeve can be unscrewed. A roller 35 guides the loose end of the rope on and off the drum, and a pawl 38 co-operates with projections 39 on sleeve 14 so that the sleeve can be held for withdrawal of rope.
Patent GB-162778-A (GB)
Title: Improvements in pistons, piston valves or the like
IPC: F16J9/08
Filed: 1920-02-03
Abstract: 162,778. Campbell, P., and Banks, W. J. Feb. 3, 1920. Piston packing.-Relates to means for relieving the pressure behind the packing due to leakage. Fig. 1 shows a piston-valve with a known construction of wedge-pressed packing-rings 6, 7. The body of the valve contains a passage 15 which communicates with the spaces behind the packing-rings through openings 16, 17, and with one limb of a breeches-pipe 18 having an extension 22 passing through a stuffing-box in the wall 24 of the valve-chest into a casing 27, closed at the outer end. This casing communicates through an opening 29 with the atmosphere, the condenser, a steam trap or an automatic relief valve, the connection being controlled by a hand valve if desired so that the pressure behind the packing can be adjusted. A pressure gauge may be fitted to the casing. Specification 3945/13 is referred to.
Patent GB-604286-A (GB)
Title: Improvements relating to coin-operated gas meters
IPC: G07F15/00
Filed: 1945-02-10
Abstract: 604,286. Prepayment gas meters. WILSON GAS METERS, Ltd., G. and WILSON, F. C., WILSON, W. D., WITHERS, G. E., [Representatives of WILSON, J. H.], and POOLE, D. C. E. Feb. 10, 1945, No. 3392. [Class 27] The cam 12 controlling the supply valve 17 of a prepayment gas meter has main and auxiliary arcuate surfaces 13, 20 at different radial distances from its axis, and the valve actuating arm 15, which is biassed by a spring 16 towards the valveclosed position, has a pin 14 which coacts with the main surface 13 when the cam is in credit and passes on to the auxiliary surface 20 to close the valve when in debit. The two surfaces 13 and 20 are joined by an inclined portion 19 so that the pin 14 is carried back to the main surface 13 when credit is restored by a further prepayment. The auxiliary surface enables the meter to continue running without straining the mechanism if the valve should fail to close completely, or if it is furnished with a small by-pass for maintaining the supply to a refrigerator. It also ensures that the continued supply is subsequently paid for. Specification 519,628 is referred to.
Patent GB-115400-A (GB)
Title: Improvements in Electric-light Fittings.
Inventor: HOUGH EDWIN ROBERT
IPC: F21V15/02
Filed: 1918-02-26
Abstract: 115,400. Hough, E. R., and Harrison, L. Feb. 26, 1918. Addition to 2928/15. Guards and protectors; globe-holders. - In the electric lamp fitting described in the parent Specification in which a ring c carrying the lamp guard engages internal spiral slots in a cap or dome a and is provided with a locking-screw g for securing it in position, the cap or shield h surrounding the locking-screw so as to prevents its improper operation is provided with a lateral extension k having an aperture l for the head of the key to be introduced sideways, the shank of the key being then slid along a lateral slot o in the extension k until the head of the key is brought into position to pass into a second shield surrounding the head of the screw. The key may have a flat shank and the inner end p of the slot o is then sufficiently enlarged to enable the shank of the key to turn.
Patent GB-507937-A (GB)
Title: Improvements in or relating to handles for portable articles
IPC: A45C13/26
Filed: 1938-02-03
Abstract: 507,937. Suitcase &c. handles. WOOD & SON, Ltd., W., and PARROTT, J. F. Feb. 3,1938, No. 3454. [Class 133] A carrying handle 12, Fig. 1, of the kind adapted to lie flat against the face of the suitcase or other article 11 when not in use, com - prises a spring steel &c. core 14 to the ends of which are riveted T-pieces 15 formed with projecting lugs 25, Fig. 3, which slidably engage in housings 13 attached to the article. The housings are substantially U-shaped in plan, slots having the upper edges inclined inwardly and upwardly being formed in the inner walls of the arms of the U so that the looped ends 19 of the handle separate from the surface of the article as the handle becomes arched in assuming the carrying position. Springs disposed between the T-pieces 15 and the end walls of the housings may be substituted for the spring core 14. Figs. 5 and 6 show modified configurations of the slots. The arrangement described may be provided only at one end of the handle, the other end being then attached to the article by means of a simple pivotal connection.
Patent GB-1374945-A (GB)
Title: Health information card
IPC: B42D15/10
Filed: 1973-01-23
Abstract: 1374945 Mounting microfilm MEDICAL IDENTIFICATION SYSTEMS Inc 23 Jan 1973 3471/73 Heading A4X A health information card comprises a rectangular paper body 16 having printing on one surface and folded along a central line 18 into two overlapping card sections 12, 14 with the printing on the outer surfaces thereof, each card section having in aligned relation with the other operative portions 34 adjacent said fold line 18 bounding a removed area 32 serving as a display window, a microfilm 20 having data 22 in a central location and border areas 24 thereabout occupying an operative display position in said window, the border areas 24 being engaged by said operative portions 34 to minimize slippage, and a transparent plastics cover 36 larger than body 16 having connected front and back panels 38, 42 disposed about the body 16 and having overlapping marginal areas (44) heat sealed together. As shown, the removed area 32 is rectangular and has one side originating at the fold line 18.
Patent GB-898482-A (GB)
Title: A circuit selector electric switch device
Inventor: KERR STUART JAMES
IPC: H01H43/12
Filed: 1958-02-04
Abstract: 898,482. Stencil switches. KERR & PARTNERS Ltd., JAMES. May 1, 1959 [Feb. 4, 1958], No. 3561/58. Class 38 (5). [Also in Group XXXVIII] A switch for use, for example, in the automation of industrial processes comprises a housing 1 formed by two corresponding castings bolted together and containing a number of copper strips 2, preferably formed by a printing process on a flexible plastic sheet 3, one end of each strip being connected to a pin 28 of a plug 27. Longitudinally extending blocks 6 and 7 form slightly acute and obtuse angles respectively with their adjacent walls of the housing such that an insulating punched card 5 may have one edge located against block 6 whilst the opposite edge can be pressed up the slight ramp formed by block 7 so that the card 5 is held tightly against the strips 2. The blocks 6 and 7 and the corresponding edges of the card 5 are not quite parallel to ensure that the card 5 may be inserted only one way round. A rotor 10 carrying spring-loaded balls to co-operate respectively with strips 2 through perforations in the card 5 is pivoted on shafts 14 and 21 journalled in end covers 24 and 20. The shaft 14 is driven by a stepping motor (see Group XXXVIII) and the shaft 21 carries a knot 22 for manual operation when desired. Connection to the rotor 10 is made by a brush 13 on cover 24 engaging a copper disc 12 secured to the end of the rotor. Cover 24 is either of insulating material or has insulating bushes for the brush 13 and rotor shaft 14. The cover 20 is removable to permit insertion and removal of the rotor 10 and punched card 5.
Patent GB-265638-A (GB)
Title: Improvements in centrifugal compressors
IPC: F04D29/46
Filed: 1927-02-08
Abstract: 265,638. Naumann, A., and Gutehoffnungshiitte Oberhausen Akt.-Ges. Feb. 8, 1927. Multi-stage pumps; multiple way impellers; regulating.-Multi-stage centrifugal compressors have the cross-sectional flow areas of the impellers and stationary members divided uninterruptedly from suction to discharge, so that part only can be used for small quantities, thereby reducing the pumping limit. The separating wall 2 divides each impeller into inner and outer parts 3, 4. The diffuser, return and reverse passages are similarly divided by the wall 13. The fixed and rotary parts of the dividing wall are connected by labyrinth packing. An annular valve 7 suspended on a pivoted arm 11, can be operated by a hand-wheel 8 to close or open the inner passage part 3 at the suction end, and hand operated valves 17 control the same passage at the discharge end. With all the valves open the compressor works in the ordinary manner but with the valves closed as shown, only the outer passage parts are employed and the capacity of the compressor is correspondingly diminished. The cross sectional areas of the passage parts may bear any desired relation to each other and the valves may control the inner or outer passage.
Patent GB-1479129-A (GB)
Title: Vibratory treatment process and machine
IPC: B24B31/073
Filed: 1976-01-30
Abstract: 1479129 Drying apparatus ABRAL 30 Jan 1976 [30 Jan 1975] 3770/76 Heading F4G [Also in Division B3] A process for the surface treatment of articles, such as finishing, grinding, polishing, crushing, screening, drying, sorting or coating, comprises mixing the articles with a surface treatment agent, circulating the mixture within a vibrating annular chamber 2 and then separating the components of the mixture by diverting the circulating mixture on to a sieve 17 in a bypass 3 adjacent and fast with the vibrating chamber, the sieve having mesh openings of size to separate the treated articles from the treatment agent, and returning one of the two separated constituents along the bypass to the chamber and discharging the other constituent from the machine. A machine for carrying out the process has a tank 1 formed with a circular, oval or polygonal, annular chamber 2 supported by springs 5 from a frame 4 and vibrated by unbalanced weights 8, 9 on the shaft 7 of a motor 6 to cause the articles and treating agent to move in the direction of the arrows 10 around the chamber. The bypass 3 is fast with the chamber and communicates therewith by way of an inlet opening 12 and an outlet opening 14, the openings extending downwardly either to the bottom of the chamber or to the upper portion of the mixture of articles and treating agent in the chamber. A sieve 17 having a constant mesh or variable mesh, or alternatively a plurality of superposed sieves when the machine is used for sorting or classifying, overlie the bottom of the bypass. When the treatment of the articles is completed, the circulation of the articles around the chamber is stopped by insertion of a gate 20 across the chamber. The gate may be mounted on a vertical pivot so as to be movable from a position closing the inlet 12 to a position across the chamber. In another embodiment, the gate is movable about a horizontal pivot and may be swung downwardly to engage the bottom of the chamber or to engage a retractable plunger (44, Figs. 17 and 18, not shown). The insertion of the gate causes the mixture to pass into the sieve in the bypass 3. In one arrangement, the treating agent passes through the sieve and is returned by the outlet 14 to the chamber, the treated articles passing to a discharge 34, while in another arrangement, the constituent which passes through the sieve is discharged and that carried by the sieve, i.e. the larger constituent of the mixture, is returned by the outlet 14 to the chamber.