baber/WOPTO huggingface dataset:
Patent GB-415737-A (GB)
Title: Improvements relating to mercury and other conducting liquid electric switches
IPC: H01H29/24
Filed: 1934-02-26
Abstract: 415,737. Mercury and other conducting-liquid switches ; electromagnetic switches. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Feb. 26, 1934, No. 6234. Convention date, March 1, 1933. [Class 38 (v).] A tilting mercury switch which may be operated electromagnetically comprises an outer fixed glass tube 1 and an inner tiltable tube 2 of fireproof material. In the form shown, the tube 2 is mounted on a spring 6 connected to a lead 7 and floats in mercury 12 contained in the tube 1. The other lead 9 passes through a hole in the tube 2 into mercury within the tube 2. The tube 2 carries an armature 4 adapted to be attracted by an electromagnet 15 whereupon mercury enters through a hole 13 and meets the main body of mercury in the tube 2 to complete the circuit between the leads 7, 9. In modifications, the tube 2 has a knife edge or other pivotal mounting and a magnet may be used to hold the tube in place ; the armature may be lamellar and have several holes through it instead of only one as shown ; the tube 2 may have several holes 13 ; a delayed action may be produced by throttling the hole 13 ; buffers may be mounted between the tubes 1, 2 and the tube 2 may be suitably guided ; and one magnet may operate several switches.
Patent GB-609331-A (GB)
Title: Improvements in and relating to contacting gases or vapours with liquids
IPC: B01J19/32
Filed: 1946-02-28
Abstract: 609,331. Treating gases or vapours with liquids. DIXON, O. G., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Feb. 28, 1946, No. 6265. [Class 55(ii)] Packing for use in the treatment of gases or vapours with liquids comprises one or more filamentous sheets, which can be irrigated with liquid, arranged axially in a column with a baffle or baffles to provide one or more tortuous passage for the flow of gas or vapour. The filamentous sheets may have plain, indented or corrugated surfaces and be woven from materials such as wire, glass or slag wool or filaments of synthetic resin preferably in the form of galloon netting. The baffles may be of filamentous material or metal sheet or tape which may be crimped or corrugated. As shown in the Figure the packing comprises four rectangular sheets of copper gauge 1, 2, 3 with series of sheet copper baffles such as 6, 8 and 10 and 5, 7 and 9 arranged between the sheets. The packing may advantageously be wetted by the methods described in Specification 578,309 although when the filamentous material is made from galloon netting such preliminary treatment is unnecessary.
Patent GB-1516608-A (GB)
Title: Primer composition
IPC: C09D5/08
Filed: 1977-02-16
Abstract: 1516608 Phosphate primer DR KURT HERBERTS & CO GmbH 16 Feb 1977 [18 Feb 1976] 06425/77 Heading C7U A corrosion-inhibiting primer comprises zinc phosphate, a binder, a solvent, a filler (optional) and H 3 PO 4 . The binder is preferably an alkyd resin, optionally mixed with a melamine resin, the filler may be talcum, kaolin, or TiO 2 , and the solvent water or organic. The primer may be used on iron and Mg alloy surfaces, and may also contain a chromate of one or more of Zn, Ba, Sr.
Patent GB-940705-A (GB)
Title: Improvements relating to hollow charges
IPC: F42B1/032
Filed: 1961-02-22
Abstract: 940,705. Hollow charges. BOFORS A. B. Feb. 22, 1961 [Feb. 23, 1960], No. 6493/61. Heading F3A. A hollow charge comprises an explosive 1, such as T.N.T., hexogen, penthrite or suitable mixtures of these, a conical liner 3 of copper, iron or zinc and a frusto-conical ring 4 of greater conicity than the liner and made of magnesium, an alloy of magnesium or an incendiary composition. According to the invention, on detonation of the charge 1 a jet is formed from the surface layers of liner 3 and this is followed by a pellet, the forward part of which is composed of the material of the ring 4 and metal from the base of the conical liner. In use against armour plating a hole is made by the jet and into this hole is injected the material of ring 4, which in the case of magnesium burns behind the plate. The material of the ring is chosen depending on what effect is required after penetration, i.e. a pressure, incendiary or poisonous effect. In Fig. 3 the ring 4 and liner 3 are separated by a supporting ring 5 made of copper, iron or zinc.
Patent GB-453351-A (GB)
Title: Improvements in or relating to lamp holders
IPC: F21V21/002
Filed: 1936-02-11
Abstract: 453,351. Two-part couplings. LANGBART, R. V., 407, Lordship Lane, Tottenham, London. Feb. 11, 1936, No. 6623. [Class 38 (i)] A lamp-holder, the upper part 4 of which carries pointec projections 7 attached to the spring contact members tc penetrate a cable located in a groove 2 in a base member 1, is provided with two oppositely disposed projections 8 on the member 4 that enter the groove 2 in the member 1 and also with recesses in a protuberance 6 on the member 4 fitting ribs 3 on the member 1. The upper and base members are secured together by a third member 11 such as a screw ring that engages a thread 10 on the base 1 and a collar 5 on the upper member 4. The ring 11 may be furnished with a conical extension to surround the member 4 and the cap of the lamp.
Patent GB-515247-A (GB)
Title: Improvements in and relating to automatic firearms
IPC: F41A3/40
Filed: 1938-03-02
Abstract: 515,247. Automate guns. BIRKIGT, M. March 2, 1938, No. 6624. Convention date, Feb. 11 [Class 92 (ii)] Automatic firearms, particularly guns for aircraft, and having a breech mechanism in which a firing-pin carrier is locked to the breech-block so long as the breech is open and is released therefrom at the same time as the breech-block is locked to the casing in the breech - closing position, have a resilient system interposed between the breech - block and the firing - pin carrier tending to urge the firing-pin carrier forwardly relatively to the breech-block. The breech-block 6 has transverse slots 6<1> permitting relative longitudinal movement of a member 10 secured to the firing-pin 11, and coupled to a pair of slides 9, springs 17 being interposed between faces on the slides 9 and stops 16 on the breech-block in order to maintain the firing-pin in forward position, The firing-pin carrier is moved rearwardly against the resistance of the recoil spring 5 by a gas - operated piston 12, after firing, and in so doing allows members 7, which had previously locked the breech-block in closed position to the casing 2, to move into recesses on the underside of the slides 9 whereby the breech-block is released for rearward movement, and the firing-pin carrier is locked to the breech-block.
Patent GB-981844-A (GB)
Title: Improvements in or relating to hydraulic pumps
IPC: F04B49/00
Filed: 1963-02-19
Abstract: 981,844. Reciprocating pumps. WEATHERHEAD CO. Feb. 19, 1963 [Feb. 23, 1962], No. 6649/63. Heading F1A. [Also in Division G3] The effective displacement of a multi-cylinder, swashplate pump is varied by axial adjustment of the cylinder block 50 to vary the point in the stroke at which the pistons 62 close the inlet ports 57, 58. The block is urged by a spring 97 towards the maximum delivery position, defined by an adjustable stop 212, and in the opposite direction by a servomechanism 107 (see Division G3) under manual control and with an overriding control operative to limit the delivery pressure. A web 44 positioned by snap rings 45, 46 houses the servomechanism and forms an abutment for springs 66 urging the pistons towards the swashplate 38 which is held against rotation by a stud 39 engaging a channel 41 and is oscillated by a rotary drive plate 25. Discharge to an outlet 93 takes place through a reaction piston 75 held by a light spring 82 against a member 79 which carries a check valve 87 loaded by a spring 88 enclosed in a cage 89. Specifications 952,203 and 981,845 are referred to.
Patent GB-345788-A (GB)
Title: Improvements in or relating to the regulation of internal combustion engines
IPC: F02D1/00
Filed: 1930-02-28
Abstract: 345,788. Regulating. COATALEN, L., Moorfield Works, Wolverhampton. Feb. 28, 1930, No. 6661. [Class 7 (vi).] The duration of opening of the fuel-injection valve b is varied by a centrifugal governor p which effects an angular adjustment of epicyclic gearing g, g<1>, h driving a pair of cams e, which actuate the valve through a lever f. The governor sleeve n is connected by links k, l, m to links i carrying the gear wheels h.
Patent GB-411250-A (GB)
Title: Improvements in exhaust silencers for internal combustion engines
IPC: F01N1/06
Filed: 1933-03-06
Abstract: 411,250. Exhaust-silencers. HASLAM, J. J., West Royd, Red Lane, Ainsworth, near Bolton. March 6, 1933, No. 6694. [Class 7 (ii).] A silencer comprises a cylindrical casing 2 with inlet 3 and outlet h. Near the inlet end is a dish-shaped baffle a having a number of openings therein which form inlets to tubes g which converge towards one another. The tubes are of flattened section at their ends nearer the baffle a, or may be of thin flattened section throughout. After the streams of gas from the tubes g have impinged on one another, they pass through apertures in other baffles 5, 6 of the kind described in Specification 360,560. According to the Provisional Specification, the casing may be covered with asbestos encased in a metal covering.
Patent GB-267536-A (GB)
Title: Improvements relating to the recovery of caustic soda from the residual lyes after the manufacture of artificial silk
IPC: C01D7/02
Filed: 1927-03-10
Abstract: 267,536. Appareils et Evaporateurs Kestner. March 12, 1926, [Convention date]. Alkali metal compounds, recovering from liquors containing organic matter.-Caustic soda is recovered from the residual lyes produced in viscose and other artificial silk manufacture by subjecting them cold to the action of carbon dioxide, whereby crystals of hydrated sodium carbonate are obtained, the hemicellulose impurity remaining in solution. The crystals are separated, dissolved in water, and causticized in the usual way. Specification 249,091 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the precipitation of the soda as bicarbonate by allowing the temperature to rise during the passage of the carbon dioxide. This subject-matter does not appear in the Specification as accepted.
Patent GB-491597-A (GB)
Title: Mechanical turf piercing or aerating apparatus
IPC: A01B45/02
Filed: 1937-03-08
Abstract: 491,597. Implements and machines for working land. HARGREAVES & CO., Ltd., W., and HARGREAVES, W. March 8, 1937, No. 6735. [Class 6 (i)] A machine for piercing turf comprises a number of spiked or toothed discs a fixed to axles which are encircled by the ends of rods c connected to a hauling structure D in such a way that the discs and connecting rods can be raised and supported on the hauling structure when not required for use. Fig. 1 shows a spiked disc a with its connecting rod c and the method of joining the latter to the hauling structure which is provided as shown in Fig. 5, with land wheels d<1> on an axle d<2> which passes through openings in the prongs of forks d<3> fixed to the frame d<4>. The rods c are pivoted by bolts e<2> to clips e which embrace the axle d<2> between the prongs of the forks d<3> and are held in position by bolts e<1>. Springs e<3> allow the discs to tilt when travelling over uneven ground and the bolts e<2> allow of movement sideways. As shown in Fig. 5, the discs are mounted in pairs and each pair can be raised independently of the others. Fig. 6 shows the end pairs raised to rest on supports f carried on the frame d4, the intermediate pairs being clipped to supports f<1>. More than two discs may be mounted as a unit at the end of each connecting rod, and the discs may be of triangular or other shape. Projections may be provided on the teeth to limit their penetration into the ground.
Patent GB-847420-A (GB)
Title: Improvements in or relating to tractor and earth scraper combinations
IPC: E02F3/65
Filed: 1958-03-04
Abstract: 847,420. Earth-working machines. VICKERS-ARMSTRONGS (TRACTORS) Ltd. Feb. 26, 1959 [March 4, 1958], No. 6839/58. Class 68(1). [Also in Group XXXII] A combination of tractor and fourwheeled earth scraper wherein the scraper comprises a front frame 10 and a scoop frame 11 pivoted together at 14, has a rigid draw bar 20 with universal end connections and a cable and winch mechanism for regulating the cut of the scoop, and is characterized by means whereby whilst the scoop frame is being raised and lowered again to working depth a proportion of the load is transferred to the tractor as a downward force to increase the tractive effort. The scoop frame 11 has an arm 22 pivotally connected at 23 to a beam 24, and a strut 26 is provided with its ends pivoted at 25, 27 to the beam 24 and the frame 10. A lever 28 which may also pivot about 25 is connected by a damper 36 to the beam 24 and carries pulleys 29 over which the cable 15 passes to pulleys 30, an anchorage point 31, and to a winch 16. When the cable is winched in the scoop 19 is raised and a telescopic spring-loaded stay 34 is compressed to transfer part of the load to the tractor. Transference of load also takes place on lowering until the scoop is supported by the ground.
Patent GB-696888-A (GB)
Title: Production of water-soluble cellulose ethers
IPC: C08B11/08
Filed: 1950-03-20
Abstract: Water-soluble cellulose ethers are made by wetting a dry fibrous mass of a low-etherified water-insoluble, alkali-soluble cellulose ether with an aqueous solution of an alkali metal hydroxide insufficiently concentrated to dissolve the ether, slowly adding an alkylating, hydroxy-alkylating or carboxy-alkylating etherifying agent in small amounts over a period of hours while maintaining the temperature at 15-30 DEG  C., allowing the mixture to stand at 15-30 DEG  C. until the water-soluble ether is produced, and thereafter neutralizing the product.  The starting material may be an alkyl, hydroxyalkyl (such as hydroxy-ethyl) or carboxy-alkyl cellulose ether (or a mixed cellulose ether), and is preferably soluble in aqueous solutions containing 3 per cent or more of alkali metal hydroxide.  In such cases aqueous solutions containing from less than 3 per cent down to 0.3 per cent of alkali metal hydroxide are used for wetting the ether.  The etherifying agent may be an alkyl ester of an inorganic acid, e.g. dimethyl or diethyl sulphate or methyl sodium sulphate, an alkyl halide such as methyl or ethyl p  chloride or bromide, an alkylene oxide such as ethylene or propylene oxide, a glycide, a halohydrin such as ethylene, propylene, or glycerine chlorhydrin or epichlorhydrin, or a carboxyalkylating agent such as chloracetic or chloropropionic acid or sodium chloracetate.  The neutralizing agent may be an alkali metal salt of a polycarboxylic acid having at least one free carboxyl group, such as sodium acid citrate or tartrate, an organic carboxy acid or an acid salt of an inorganic acid, e.g. an acid phosphate or a bisulphate.  In an example, 100 parts of a dry fibrous hydroxyethyl cellulose ether having 0.2-0.4 ethylene oxide groups per anhydroglucose unit, 150 parts of a 0.3 per cent aqueous sodium hydroxide solution and 0.6 parts of a 40 per cent aqueous solution of sodium 2-ethyl hexanol sulphate (a wetting agent) are mixed at 18-20 DEG  C., introduced into a churn and 50 parts of ethylene oxide admitted over a period of 3 hours at 15-18 DEG  C. with mixing, the internal pressure of the churn being maintained at 28 inches of mercury.  The reaction is allowed to continue at 15-18 DEG  C. for 17 hours, with or without mixing, and 2.15 parts of sodium acid tartrate are then added.
Patent GB-399716-A (GB)
Title: Improvements in or relating to thermionic oscillation generators
IPC: H03B5/34
Filed: 1933-03-07
Abstract: 399,716. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.- (Assignees of Goldstine, H. E. and Conklin, J. W. ; Rocky Point, New York, U.S.A.) March 7, 1933, No. 6931. Convention date, March 9, 1932. [Class 40 (v).] In a thermionic generator comprising a back-coupled valve 16, Fig. 1, whose input circuit includes a parallel tuned circuit 8 in series with a piezo-electric crystal 6, the capacitive reactance of the crystal and its electrodes is compensated, preferably by a condenser 14 in parallel with the crystal and in series with the tuned circuit 8. Preferably the circuit is made slightly degenerative by over compensation. A low impedance, comprising a resistance 30 and a condenser 32, in shunt with the grid leak 28, prevents generation of spurious oscillations through its bypassing effect. In a modification, the cathode is connected to the junction of condensers 13, 15, Fig. 2, instead of to a tapping on the inductance 10, Fig. 1, and the compensating condenser 14 may be eliminated, the neutralizing connection being made to an intermediate point on the grid tuning condenser. The compensating condenser 14 may be connected between the grid and a coil coupled to either the plate or grid coils 18, 10. Specification 401,563 is referred to.
Patent GB-1482369-A (GB)
Title: Reactivation of copper salt phenol oxidation catalysts
IPC: B01J27/28
Filed: 1975-02-19
Abstract: 1482369 Catalyst reactivation GOODYEAR TIRE & RUBBER CO 19 Feb 1975 [13 March 1974] 6984/75 Heading B1E [Also in Division C2] A phenol oxidation catalyst selected from copper I or copper II halides, cyanates, thiocyanates or cyanides which has become deactivated by use in the oxidation of phenol in methanol solution by precipitation of the salt in the form of an insoluble, inactive complex is reactivated by (i) separating the inactive complex from the reaction solution, (ii) adding 0.001-1.0 mole/gm complex of at least one acid selected from sulphuric, hydrochloric, nitric, trifluoroacetic, phosphoric, perchloric and toluene sulphonic acids, and (iii) heating the mixture, if necessary, until the complex dissolves. Methanol may be added to the mixture in addition to acid. The Examples relate to treatment of deactivated copper (II) chloride catalyst.
Patent GB-1171485-A (GB)
Title: A process for the production of Hydrogen Peroxide
IPC: C01B15/023
Filed: 1967-02-14
Abstract: 1,171,485. Anthrahydroquinones. DEUTSCHE GOLD - UND SILBER - SCHEIDEANSTALT VORMALS ROESSLER. 14 Feb., 1967 [22 Feb., 1966], No. 6987/67. Heading C2C. [Also in Division C1] Anthrahydroquinones and tetrahydroanthraquinones are formed in the main and secondary reactions respectively in a cyclic process for the preparation of H 2 O 2  (see Division C1) by catalytically reducing anthraquinones using a mixed catalyst of palladium with total quantities of up to 50% by weight based on palladium of one or more of the elements Ru, Rh, Os, Ir and Pt during the hydrogenation stage.
Patent GB-127661-A (GB)
Title: Improved Means for Sealing the Openings in the Roof and Walls of an Electric Furnace through which the Electrodes are Introduced.
IPC: H05B7/12
Filed: 1917-05-16
Abstract: 127,661. Watson & Co., T. H., Greaves, H. A., and Etchells, H. May 16, 1917. Furnace details.- An electrode passing through a furnace wall or roof is surrounded, just outside the furnace, by a water-cooled sleeve b, the outer end of which is bevelled to accommodate a packing-ring c of asbestos and graphite, or other composition. An outer bevelled washer d serving to compress the packing-ring is attached to the water-cooled sleeve by studs or bolts, between which and the washer may be interposed springs to allow for irregularities in the electrode. The water-cooled sleeve may be cemented to the brickwork or casing.
Patent GB-416420-A (GB)
Title: Improvements in or relating to the production of articles or work-pieces, the surface of which is wear-resisting and the core of which is tough
IPC: C23C8/80
Filed: 1933-03-08
Abstract: A wear-resisting surface is produced in artlcles &c. of soft carbon steels containing 0,6-0,8 per cent of manganese and a toughened interior by carburizing the surface until it attains the entectoid composition corresponding to the manganese content, annealing for 10-20 minutes at 10-30 DEG  C. above the AC3 point of the initial material and then cooling preferably in still air.  The manganese content may be replaced partly by one or more of the metals, chromium, tungsten, molybdenum or vanadium, the manganese content then being 0,5-0,7 per cent and the total content of the other metals about 0,5 per cent.  The initial material may contain 0,35-8,0 per cent of silicon or up to 3 of nickel or 1,5 of copper.
Patent GB-1505770-A (GB)
Title: Machine for the manufacture of objects of sheet shape
IPC: B29C69/00
Filed: 1976-02-23
Abstract: 1505770 Delivering sheets; feeding webs FLODINS INDUSTRI AB 23 Feb 1976 [26 Feb 1975] 07101/76 Heading B8R Apparatus for feeding sheets to a delivery point and delivering them to a stack comprises a belt 4, Fig. 3, supporting the webs, a reciprocating feeding device 70 and a delivering device 15 moving with the feeding device 70 between a sheet gripping position and a delivery position. The feeding device may comprise a clamp engaging the belt 4 on feeding strokes to present sheets to the delivering device. The delivering device may comprise a frame 76 fixed to the feeding device and supporting pneumatic grippers 77 picking sheets off the belt 4 and dropping them in a hopper 17. The frame may include means permitting longitudinal displacement of the grippers 77 thereon. Feeding webs.-Means, Fig. 2, for unwinding a length of web comprises a pneumatically reciprocated plunger 21 carrying a pair of rollers 20 on a yoke 19. On a downward stroke of the plunger, a clamp 23 holds the right hand run of web while web is unwound from the left, being drawn down on to a fixed roller 22. On the return stroke of the plunger the clamp 23 is released and the right-hand run of web advanced by the conveyer belt 4, Fig. 3.
Patent GB-611240-A (GB)
Title: Coating apparatus
IPC: B24D11/00
Filed: 1946-03-07
Abstract: 611,240. Coated fabrics. CARBORUNDUM CO. March 7, 1946. No. 7102. Convention date, April 13, 1944. [Class 140] [Also in Groups XXIII and XXXV] Coated sheet material which may be ornamental is made by projecting particles such as glass beads or roofing particles onto an adhesive-coated travelling web 1, from a durable flexible sheet 4 which is caused to vibrate mechanically or as shown by an electromagnetic vibrator 5 and an automatic control is provided to maintain the vibrating sheet 4 at the maximum amplitude and in resonance with vibrator 5 whereby the maximum projective effect on the particles is obtained. As shown control is obtained from sound variations picked up by a microphone 27, the output of which is fed through an amplifier 17 to control the frequency of vibrator 5. The microphone control 27 can be replaced by a vibrational pick-up control in contact with sheet 4, or by a condenser. The durable flexible sheet may be leather or vulcanized fibre or canvas or a composite sheet of vulcanized fibre and cloth adhesively secured together or rubberized fabric or thin sheet metal. When the flexible sheet 4 is made from thin magnetic sheet metal an electromagnet controlled by voltages of the desired frequency may be used as a control. In a modification the vibration of the flexible sheet is effected by a mechanical beater driven by a variable speed shunt D.C. motor and the speed of the motor is arranged to give the maximum amplitude of the particle loaded sheet by the use of a valve oscillator influenced by a condenser near the vibrating sheet (see Group XXXV). The particles are projected from a hopper 22 onto the vibrating sheet 4 at a controlled rate by means of an electromagnet vibrating device 24. The flexible sheet 4 is maintained taut by a clamping arrangement 7 and variable weights 11, and in a further form may be a taut endless belt travelling over a fixed vibrating sheet such as 4 or alternatively used by itself. The adhesive coated web may be paper or cloth. The supply of the particles to the sheet 4 may be varied in order to provide "close or open coated" sheet material. The above particle projection methods can be combined with electrostatic and/or electromagnetic fields.