baber/WOPTO huggingface dataset:
Patent GB-1378406-A (GB)
Title: Centrifuges
IPC: B04B5/04
Filed: 1972-06-23
Abstract: 1378406 Analytical centrifuge P SVENTESI 23 June 1972 29669/72 Heading B2P The rotor 1 of an analytical centrifuge is formed with recesses in which are arranged cells 5 for containing liquid specimens to be analysed, the cross-section of the recesses and cells being triangular with rounded corners and the sides of the triangle being straight or curved. The sides may be constituted by arcs of circles or ellipses. The cells have sectorshaped cavities 4 for receiving the specimens.
Patent GB-1037499-A (GB)
Title: Improvements in pendulum vibrators
IPC: B06B1/16
Filed: 1965-07-13
Abstract: 1,037,499. Vibratory mechanisms. VIBRATECHNIQUES S.A. July 13, 1965 [Jan. 22, 1965], No. 29712/65. Heading F2X. A pendulum vibrator has a body 2 driven by a flexible shaft 4 and set into conical pendulum movement consequent upon the movement of rotation about its own axis in a swivel plummerblock 3, the vibrator having a baffle, such as 8 or 9, to collect lubricant that might accidentally flow through a flexible and elastic sealing joint 7. Absorbent material 10 may be provided in the baffles which prevent lubricant reaching a track 6 engaged by a conical portion 5 of the body 2. A succession of baffles may be provided on the body and on the casing which may be hollowed out to form the baffles.
Patent GB-534755-A (GB)
Title: An improved display holder for knitting or like pins or needles or for other like articles
IPC: G09F5/04
Filed: 1939-11-09
Abstract: 534,755. Packages; displaying. BRITISH NEEDLE CO., Ltd., and KEESEY, E. W. Nov. 9, 1939, No. 29738. [Class 94 (i)] [Also in Group XVIII] A holder for knitting needles or like articles, such as crotchet hooks, consists of a strip a of paper or other flexible material having its ends folded over to form flaps b, a transverse slit d being formed in each flap to receive the ends of the needles.
Patent GB-1111745-A (GB)
Title: Process for the manufacture of a warp-knit fabric
IPC: D06M23/06
Filed: 1966-07-01
Abstract: A process for the manufacture of a nylon warp-knitted fabric comprises the use of two or more yarn systems two or more of which produce tricot, cloth or satin stitch in opposite directions the resulting fabric being subjected to warpwise tension whilst reducing in width and subsequently stabilized while under tension.  In one example a satin-tricot stitch fabric is overfed to a tenter frame by 5% and is heated at 190 DEG C for 20 seconds. The fabric is then treated in a high pressure dyeing machine at 70 DEG C with an 0.2% aqueous solution of sodium carbonate containing 0.2% ethyloxylated lauryl alcohol with 10-20 ethylene oxide groups per molecule, washed and then treated at 120 DEG C with an aqueous solution containing 0.15% sulphonated stilbene optical bleaching agent.  It is then dried at 100 DEG C.  In a second example the same fabric is treated in a padding machine as previously described in relation to the dyeing machine and then tentered and treated with the bleaching agent and dried.  In a third example a fabric formed with two tricot and one satin stitch formation was produced and treated in the first example.
Patent GB-1111887-A (GB)
Title: Hearing aid circuit module
IPC: H05K1/14
Filed: 1965-07-14
Abstract: 1,111,887. Hearing aids. DANAVOX INTERNATIONAL A/S. 14 July, 1965 [26 March, 1965], No. 29781/65. Heading H4J. [Also in Division H1] A hearing aid circuit module comprises two plates 6, 7 held in spaced relation by a casing 1 housing components, preferably of an integrated circuit amplifier. Other components 2, 3, 4, 5 have, at each end, wires which extend through holes or notches and are fixed in electrical contact with the plates 6, 7. The plates 6, 7 are provided with printed circuits. The integrated circuit amplifier, if provided, has connecting wires which each extend outwards through an insulated projection, e.g. of glass, and these projections protrude into holes in the plates 6, 7. Notches 8, 9, 10 ensure correct positioning in tools when components are being mounted. In use the plates 6, 7 may be lodged in grooves (11, 12), Fig. 2 (not shown) in a housing. Two integrated circuit amplifiers may be arranged between the plates 6, 7.
Patent GB-1087531-A (GB)
Title: Olefine copolymer films
Inventor: SANDIFORD DENIS JAMES HENRY
IPC: D01D5/247
Filed: 1965-07-14
Abstract: 1,087,531. Voided olefin copolymer films and fibres. IMPERIAL CHEMICAL INDUSTRIES Ltd. July 6, 1966 [July 14, 1965], No. 29821/65. Heading B5B. An oriented, voided film or fibre is made, by extrusion, from a copolymer composition which is the homogeneous product of a polymerization process in which from 75-95% of an aliphatic define monomer and from 5-25% of either a second olefin monomer or a blend of such monomers are brought into contact with a stereospecific catalyst to cause their polymerization either in rotation (this term is defined) or sequentially, quenching the extrudate, and drawing it under conditions of temperature, draw-ratio and draw-rate such that it draws through a neck. Specified olefines are ethylene, propylene, butene-1, 3-methyl butene-1 and 4-methyl pentene-1. Suitable temperatures are from 15 C. above room temp., with a draw ratio of 3: 1 to 10:1 at a draw rate of 200-300,000% per minute. The products may be heat-set, e.g. at 140 C. The copolymer compositions are prepared, e.g. according to Specifications 970,478 and 1,014,944.
Patent GB-939126-A (GB)
Title: Improvements in or relating to the signalling and/or registration of the occurrence of slubs on a running yarn
IPC: B65H63/06
Filed: 1962-08-03
Abstract: 939,126. Testing yarn. ONDERZOEKINGSINSTITUUT RESEARCH N.V. Aug. 3, 1962 [Aug. 11, 1961], No.. 29901/62. Class 120 (3). [Also in Group XIX] Slubbiness in yarn is tested in the manner described in Specification 906,237 with the modification that transistor amplifiers and filter circuits are interposed between the detector and counter. The yarn passes through an eyelet 11, slubs inducing an electrostatic charge in one of a pair of wires 14, 15 wound helically round a ring. The eyelet includes a pair of transistors T 1 , T 2 , Fig. 4, which feed a transistor amplifier and band-pass filter connected to a monostable circuit T 5 , T 6  so that each disturbance energizes a solenoid 23 to advance a counter. The time constant of the monostable circuit is such that two ends of a broken fibre are counted as one slub.
Patent GB-280547-A (GB)
Title: Improvements in or relating to suspension systems for vehicles
IPC: B60G21/073
Filed: 1927-11-08
Abstract: 280,547. Messier, G. L. R. J. Nov. 9, 1926, [Convention date]. Lateral canting, preventing; equalizing load on springs and wheels.-A spring suspension for vehicles comprises a pair of inter-communicating pneumatic devices arranged between each axle and the frame, and one or more stablizing devices tending to maintain the axles parallel with the frame. The pneumatic devices, as described, are of the type comprising a cylinder 1, Fig. 1, on the frame and a piston 3 connected to the axle, or vice versa, the cylinder head having an inlet valve 7 admitting compressed air from a reservoir 8 when the piston rises abnormally in the cylinder, air being permitted to escape through an orifice 9 at the other end of the cylinder when abnormal movement of the piston occurs in the other direction. The rear axle suspension is shown in Fig. 3 in which the cylinders B<3>, B' are connected by a pipe F<2>, and the stabilizing device comprises arms J', J<2> connected to the axle D<2> and carried by a shaft G rotating in bearings H<1>, H<2> on the frame. The arms J<1>, J<2> may be resilient, or the shaft may have torsional resistance, or the arms may be connected to the shaft by resilient means. The front axle may also have a stabilizing device, and the invention may be applied to a vehicle with more than two axles. The wheels may be independently carried by the vehicle. The inlet and exhaust of air to and from each pair of interconnected cylinders may be controlled by a single set of valves actuated by the relative movement between a point on the axle, preferably the centre, and the frame.
Patent GB-1534665-A (GB)
Title: Track for toy vehicles
IPC: A63H19/30
Filed: 1977-07-18
Abstract: 1534665 Toy tracks PLAYART Ltd 18 July 1977 30104/77 Heading A6S A toy track section has cut-away recesses 18 beneath the ends of its rails 6, 8, so that it can be connected by fishplates or clips (22), Figs. 2, 3 (not shown) to a dissimilar track section (20). The track section has a plastics base 2 with a plug and socket 12, 10 and electrical connections 14, 16 to its two rails 6, 8, for engagement with a plug, &c. on a similar track section, and is generally as described in Specification 1503135.
Patent GB-280565-A (GB)
Title: Improvements in or relating to telephone systems with amplifiers
IPC: H04B3/36
Filed: 1927-11-10
Abstract: 280,565. Siemens & Halske Akt.-Ges. Nov. 15, 1926, [Convention date]. Repeating and amplifying systems for telephony. In systems in which the attenuation in and therefore the amplification for the various line sections differs, all the amplifiers are made to standard specification the necessary variation in effective amplification being provided for by connecting to the' line or the amplifier an impedance J which is cut out, preferably by means of jack springs K<1>, when the amplifier is being tested, all the amplifiers being adjusted to give the same amplification. The impedance may be an ohmic resistance or a network simulating the impedance of a length of line. When the impedance is mounted at a distance from the amplifier panel the leads are shielded by means of sleeves connected to ground or to the mid-point of the split transformer or, as shown, by means of a wire l<2> connected to the lower talking wire and twisted up with one of the leads to the impedance. Standard amplifiers may be provided with weakening impedances which can be varied step by step to enable them to be used in different junctions. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the arrangement shown in Fig. 3 (Cancelled) in which the impedance J is permanently connected to the line. This subject-matter does not appear in the Specification as accepted.
Patent GB-689338-A (GB)
Title: Improvements in an etch for making lithographic printing plates
IPC: C23F1/26
Filed: 1950-12-11
Abstract: 689,338. Etching. INTERCHEMICAL CORPORATION. Dec. 11, 1950 [July 20, 1950], No. 30214/50. Class 100(ii) An etch for use in making lithographic printing plates which will dissolve chromium without attacking copper, and which has only a slow action on a light-hardened bichromated gum arabic film, consists of a concentrated aqueous solution of calcium or magnesium chloride, a minor proportion of a concentrated solution of a stannic or chromic salt, and a small amount of acid sufficient to reduce the pH to below 2.0. The stannic or chromic salt is preferably the chloride. The acid is present to the extent of about 2 liquid ounces per gallon of the calcium or magnesium chloride solution, and may be hydrochloric, nitric, sulphuric, acetic, phosphoric, lactic, hydroxy-acetic, citric, oxalic or tartaric acid or resorcinol may be used. Example 1. 16 liquid oz. 41.5 degrees Be<SP>1</SP> calcium chloride solution (79 per cent CaCl 2 .6H 2 O), 4 oz. 45 degrees Be<SP>1</SP> chromic chloride solution (saturated),  oz. concentrated nitric or hydrochloric acid. Example 2. The same as example 1 with nitric acid, using magnesium chloride instead of calcium chloride. Example 3. The same as example 1 with hydrochloric acid, but using 65 degrees Be<SP>1</SP> stannic chloride solution (64 per cent SnCl 4 ) instead of chromic chloride. Specification 640,655 is referred to. Reference has been directed by the Comptroller to Specification 483,349.
Patent GB-519483-A (GB)
Title: Improvements in coating pots for coating materials with molten metal and in processes for so coating materials
IPC: C23C2/00
Filed: 1938-10-19
Abstract: 519,483. Coating metals. FINK, C. G. Oct. 19, 1938, No. 30228. [Class 82 (ii)] In coating wires, strips, sheets, or other continuous lengths of metal with molten metal such as aluminium, aluminium alloys, zinc, silver, or magnesium, the wire or strip is passed into and out of the pot through ports 9, 10 which are made of an abrasion-resisting substance not wetted by the molten metal, for example, fused alumina or the substance known under the Registered Trade Mark "Alundum." The ports 9, 10 may take the form of a plug 22 fixed with a cement containing fused alumina and precipitated aluminium hydroxide. The plugs may have bevelled edges so that the bevel of the inlet port inclines inwardly and that of the outlet port inclines outwardly and may be secured to rings outside or inside the pot. The pot may be supported by a projecting ring 6, or in the case of a rectangular pot, by side flanges, and may be heated by a gas or liquid fuel burner 7 or by solid fuel or electricity. The surface of the metal is protected from oxidation either by carbon blocks or by a reducing gas. The wire may first be passed through a reducing gas before entering the pot. The pot may be made of silicized or graphitized boiler plate or cast iron. Specification 415,732 is referred to.
Patent GB-155448-A (GB)
Title: Improvements in drawing or writing appliances, more particularly for the use of children
IPC: A47B97/04
Filed: 1919-12-03
Abstract: 155,448. Meldal, E. Dec. 3, 1919. Writing-boards.-A drawing or writing appliance, arranged so that a child seated on the floor may draw &c. thereon without being cramped, consists of a board a which may be treated to produce a " blackboard " surface, hinged at the top to a similar board, or to an open framework b<1>, so that they may stand in inverted V fashion. The bottom of the board is cut away at a<2> to provide a passage for the user's legs, and all the rough edges are covered with soft material to protect against splinters. Receptacles d, d<1> are formed at both sides of the device for accommodating chalks and the like. The open framework b<1> may be provided with an abacus.
Patent GB-496774-A (GB)
Title: Improvements in or relating to permanent magnets and alloys therefor
IPC: C22C38/08
Filed: 1937-11-05
Abstract: Alloys, particularly for permanent magnets, of the kind consisting essentially of aluminium, nickel, and iron, with or without one or more known additions such as chromium, cobalt, copper, manganese, molybdenum, silver, tantalum, tin, titanium, tungsten, uranium, vanadium, zirconium, and silicon, contains also an addition of niobium, for example 0,25-2 per cent, the proportion being preferably not less than 10 times the expected carbon content.  In making the alloy, the niobium may be introduced as a ferro-alloy containing 53 per cent of niobium or as pure metal.  The alloys may be heated to 1250 DEG  C., quenched in oil, reheated at 675 DEG  C., and cooled in air.  Specifications 431,660, 439,543, and 450,431 are referred to.
Patent GB-778031-A (GB)
Title: Improvements in taps for tea and like urns
Inventor: GRAVES KENDAL HENRY
IPC: F16K1/14
Filed: 1955-10-24
Abstract: 778,031. Valves. HEATH, Ltd., W. H. Oct. 24, 1955, No. 30350/55. Class 135. An outlet tap for urns comprises a pipe A which is threaded at one end for attachment to the urn and is formed at the other end with a cylindrical casing B, a delivery nozzle C screwed into the lower end of the casing and formed with a conical or other valve seat D, a cover E screwed into the upper end of the casing and arranged to guide the spindle G of a spring- loaded valve, a rubber valve member F carried by the spindle, and a handle having a bifurcated portion H pivoted to the spindle and arranged to be moved from the horizontal position shown to the vertical position to open the valve. A spring K is interposed between the cover E and the holder L for the valve member. The pipe A may be cleaned on removal of a screw N.
Patent GB-962914-A (GB)
Title: Improvements in and relating to the cutting of the toothing of spiral bevel gears and hypoid gears
IPC: B23F21/22
Filed: 1960-09-02
Abstract: 962,914. Gear-cutting. VERWALTUNGSGESELLSCHAFT DER WERKZEUGMASCHINENFABRIK OERLIKON. Sept. 2, 1960 [Sept. 7, 1959], No. 30379/60. Heading B3K. A method of cutting a pair of gear-wheels by a continuous indexing process comprises the use of two cutters each having groups of blades containing a roughing blade V, Fig. 6, and two sidecutting blades A, I, the roughing blade being situated at the head of each group in one cutter and in the middle of the group in the other cutter, Fig. 7. In the prior art, a roughing blade V was positioned before an external blade A and an internal blade I in each group of teeth on a cutter for continuous indexing; and teeth were crowned by increasing the depth of cut of the internal blades or cutting the concave sides with a greater curvature. In the cutter of Fig. 6, the finishing blades are moved towards each other by an angle ##. In the most favourable construction, the angle between all blades is the same, that is #v<SP>1</SP>=#i. As the blades are arranged on spiral curves involuting to the circle shown, archimedean or logarithmic spirals, the radius at which each is set is altered by #r proportional to ##. The blades of the other cutter, Fig. 7, are displaced similarly but in opposite directions. The construction enables more cutter groups to be accommodated. The use of the cutters results in both sides of a tooth having the same curvature even though the teeth have a positive profile displacement for the smaller wheel. The cutters may make an initial plunge-out.
Patent GB-790547-A (GB)
Title: Improvements relating to the production of motor fuel
IPC: C10L1/04
Filed: 1954-10-22
Abstract: Motor gasoline is obtained by catalytically hydrogenating the polymer produced by the thermal stabilization of steam cracked gasoline at elevated temperature and pressure, and fractionating the product to yield a gasoline fraction.  In a preferred embodiment (Example (1)) a steam cracked gasoline was subjected to a polymerization treatment at a pressure of 375 p.s.i.g. at 200 DEG  C. and a residence time of 8 hours, the resulting polymer, which amounted to about 16 per cent by weight was hydrogenated over a catalyst consisting of the oxides of cobalt and molybdenum on alumina at a pressure of 1000 p.s.i.g., a temperature of 780 DEG  F., a space velocity of liquid polymer of 1.0 v/v/hour and a gas recycle rate of 4000 SCF/B.  The product of the hydrogenation process may be further fractionated to yield a higher boiling fraction rich in aromatics.
Patent GB-465353-A (GB)
Title: Improvements in or relating to relay switching arrangements for telephone or like transmission systems
IPC: H04B3/20
Filed: 1935-11-05
Abstract: 465,353. Two - way transmission. STANDARD TELEPHONES & CABLES, Ltd., and LATIMER, K. E. Nov. 5, 1935, No. 30587. Addition to 456,827. [Class 40 (iv)] The directional switching arrangements described in the parent Specification are modified by arranging that the relay DR controlled by the amplifier detectors is constrained by a local circuit to complete its movement, once the movement has commenced, and that the directional switching relay A controlled by DR commences to operate as soon as DR commences its movement. Both relays are differential polarized relays, and each time DR closes its contacts, the local circuit momentarily provides reinforcing current for ensuring full contact. As shown, amplifier-detector V1, T5, R1 is associable with points ad1 or ad2 of the repeater and amplifier-detector V2, T6, R2 with ad3 or ad4, under the control of slow relay B, the directional switching being effected by fast relay A both under the control of DR as described in the parent Specification. The lower (E-W) path represented by transformer T2 is operative and relay C is operated, its contacts being in the position shown. The differential relay DR, which remains in the condition to which it is last set, has equal current through the auxiliary differential windings aw1, aw2, the resistances r1 .. r4 being of the same value. Signals in the upper path over transformer T1 cause rectifier R1 to preponderate over R2 and DR starts to change over its contact. Current through aw2 immediately ceases so that winding aw1 assists the movement by current over r2 and also by current over r1 when DR has changed over. The change over is thus ensured even if the output of R1 drops. When, however, slow relay C has fallen back, the balance of windings aw1, aw2 is restored in readiness for DR to deal with signals in the opposite direction. The operation of the directional switching relay A is controlled by resistances r5 .. r8 of which r5, r6 are greater than r7, r8. In the position shown, current over winding w2 and resistance r8 preponderates over that over w1, r5 and A is held with its contact in the position shown. As soon as DR starts to change over, the circuit over w2 is broken and A starts to change. When DR has completed its movement, w1 receives current over both r5 and r7 until C releases whereupon A is controlled over w1, r7 and w2, r6 the current over w1 being the greater, so that A is ready to be changed back when DR commences to change back. When this occurs, the re-operation of C is prevented until B has released in order that the local circuit may again control DR in the same manner as it did during first described movement of DR due to the slow release feature of C. The operations of DR and A are. assisted in one direction by an inductive kick from C when DR opens its circuit and in the other direction by an inductive kick from B.
Patent GB-1204374-A (GB)
Title: Improvements relating to air heaters
Inventor: SCOTT DONALD ALAN
IPC: F24H3/00
Filed: 1967-07-04
Abstract: 1,204,374. Air heating stoves. NU-WAY BENSON Ltd. 5 Sept., 1968 [4 July, 1967], No.'30637/67. Heading F4S. An air heater has a fluid-fuel fired combustion chamber 21 with a closed end 30 from which the burner gases are deflected back to an exhaust outlet at the burner end of the chamber leading to an annular flue passage 14 surrounding and spaced from the combustion chamber, the exhaust gases finally passing to an annular chamber 36 leading to a stack 37. Air to be heated is blown by a fan (not shown) into a space 43 at the burner end of the apparatus. The air passes over a baffle 42 in the space 43 to an annular duct 11 surrounding the exhaust gas passage 14. The outer wall 10 of the duct 11 constitutes the outer shell of the heater which thus remains cool. From the duct 11 the air flows to series-connected concentric ducts 18, 20 surrounding the combustion chamber, the now heated air passing finally to an outlet duct 54. A sleeve valve 56, 58 enables some of the unheated air to be by-passed from the duct 11 directly to the outlet 54. This by-passed flow is said to increase the flow rate in the duct 11, thus helping to maintain cool the outer shell 10.
Patent GB-227774-A (GB)
Title: Apparatus for the extraction of particles from gas streams
IPC: B01D45/16
Filed: 1923-10-11
Abstract: 227,774. Carty, M. W. Oct. 11, 1923. Depositing-chambers.-Apparatus for separating solid particles from gas streams, for example cement dust from the gases in cement mills, or cinders and unburnt coal from the gases of boiler furnaces, comprises a vertical flue having a dust pocket and dead gas space at the lower end, and a vertical gas conduit extending outside the pocket, opening freely into the pocket at its upper end through a mouth of long horizontal width and small vertical height. Fig. 1 shows a dustseparating element in which the gas rises through a wide-mouthed conduit g into a flue 42 wherein the dust is deposited in a pocket 33 while the dust-free gas passes off. Fig. 2 shows a boiler furnace fitted with oppositely-disposed separating gas conduits g, h leading into a flue 42 terminated at the bottom by a dust pocket 33 from which a hopper or hoppers 35 convey the cinders &c. to a common conductor 41 which may be under seal. Specification 227,196 is referred to.