baber/WOPTO huggingface dataset:
Patent GB-1398327-A (GB)
Title: Radiant burner and furnace for treating at high temperature
IPC: F23D14/12
Filed: 1972-07-20
Abstract: 1398327 Radiant burner and furnaces; furnace walls RESSORTS DU NORD SA 20 July 1972 [3 Aug 1971 4 April 1972] 33999/72 Headings F4B and F4T  A radiant burner comprises a metal sleeve 52, Fig. 1, for supplying a combustilbe mixture and force-fitted into a body 51, 53 of a felt of refractory fibres so that it extends therethrough, said body defining a wall and having a low thermal conductivity and said sleeve 52 having an outlet on one side of said wall, a surface layer on said one side of the felt wall being vitrified when first heated to high temperature by combustion adjacent said one side of combustible mixture supplied by the sleeve and constituting a radiant non-porous thin skin. The combustible mixture is directed on to the surface of said body by a diffuser 60 on a rod 58. Radial or helical fins 62 are provided between the sleeve 52 and rod 58. Alternatively the combustible mixture may be discharged from sleeve 52 tangentially thereto by providing a helical pipe in the sleeve 52 or by disposing tangentially discharging orifices in the sleeve. The downstream surface of body 52, 53 may be parabolic or frusto-conical or planar. A plurality of such burners may be united to define a furnace chamber. Alternatively, the furnace chamber may be defined by a casing 4, Fig. 3, formed as a single unit or from a plurality of units, the or each having two or more layers 4a, 4b of the refractory felt the casing being supported by a continuous or frame-like reinforcement 1. The furnace chamber may be elongate and have a circular or other crosssection, material to be passed through the chamber passing throgh inlet and outlet openings (22), (23), Fig. 4 (not shown), or through a longitudinal slot 18. The furnace chamber may alternatively be closed in use, one wall being formed as an access door. The furnace may have one burner comprising a force-fitted metal tube 6, or a pair of diametrically opposed burners, or rows of diametrically opposed burner and/or a row of burners 28 opposite slot 18. The burners are preferbly arranged so that the whole of the inner surface of casing 4 is heated sufficiently to heat an article in the furnace chamber by radiation.
Patent GB-465672-A (GB)
Title: Improvements in floor-covering
IPC: E04F15/16
Filed: 1935-12-10
Abstract: 465,672. Compound sheet materials. WOODGATE, F. E. Dec. 10, 1935, No. 34130. [Class 140] In a semi-flexible sectional floor covering each section comprises ply-wood blocks arranged side by side and attached by adhesive to a backing of flexible material such as hessian which itself is backed with a layer of pitchcoated paper.
Patent GB-838486-A (GB)
Title: Improvements in or relating to microscopes
IPC: G02B21/08
Filed: 1958-10-24
Abstract: 838,486. Microscope condensers. COOKE TROUGHTON & SIMMS Ltd, Oct. 24. 1958 [Oct. 28, 1957], No. 34157/58. Class 97(1) A condenser arrangement in or for use in a compound microscope comprises at least one optical lens, having at least one of its surfaces provided with an optically semi-reflecting layer such that when said lens is subjected to incident illumination reflected and refracted rays form respective cones of illumination whose respective apices are displaced along the optical axis of said microscope and whose half angles are of differing magnitudes. As shown, the condenser comprises a plano-convex lens having semi-reflecting surfaces 2, 3 such that refracted rays come to a focus at 4 whereas rays which are doubly reflected come to a focus at 5. This condenser is included in the sub-stage of a microscope and can be displaced axially so that when a low power objective is employed the object coincides with focus 4, whilst when a high power objective is employed the object coincides with focus 5. The lens may be bi-convex or concave-convex and may be associated with at least one additional lens which may be cemented thereto. Preferably the semi-reflecting layers are of titanium oxide or antimony sulphide.
Patent GB-786779-A (GB)
Title: Improvements in locks for doors and other closure members
IPC: E05B55/00
Filed: 1954-11-25
Abstract: 786,779. Locks. BACKHOUSE, H T. Nov. 16, 1955 [Nov. 25, 1954], No. 34230/54. Class 44 Relates to locks of the kind comprising in combination a bolt or catch normally held in a latching position, an operating member movable by partial rotation on one direction from a neutral position to force the bolt into an unlatching position and movable by partial rotation in the opposite direction from the neutral position to a locking position in which it places a positive stop in the way of the bolt so that the bolt cannot be withdrawn from the latching position, a key-operated lock of the cylinder or barrel type having a key-released-and-operated member, the key being movable at only one position of the member, and a lost motion connection between the key-operated member and the operating member whereby the operating member may be rotated in each direction by the key and the key may be removed when the operating member is in either the neutral position or the locking position. According to the invention, the angular lost motion is substantially equal to the angular movement of the operating member between the neutral and locking positions. As shown, each of a pair of levers 12 and 13 pivoted within a lock casing 10 is movable from a neutral position to a locking position to lock a latch bolt 11 and in the other direction to retract -the latch bolt. The lever 13 is movable by means of a handle 15 and the lever 12 is provided on the free end of its squaresection operating spindle 17 with a pair of diagonally opposed square stops 18 between which is located a flat rotatable blade 21 of a cylinder lock 20, the arrangement permitting 90 degrees of lost motion between the blade and the spindle 17. In another arrangement, Fig. 4 (not shown) the levers 12 and 13 are replaced by a single lever on a square section spindle to one end of which a handle is attached and the other end of which carries the stops 18. The invention includes the arrangement in which the stops are provided on the key-operated member and the blade is on the handle operated member. Specification 679,564 is referred to.
Patent GB-891625-A (GB)
Title: Tool feed mechanism
IPC: B23Q5/26
Filed: 1958-10-25
Abstract: 891,625. Drilling machine details; dashpots. SMALLPEICE, C. D. P. Oct. 21, 1959 [Oct. 25, 1958], No. 34241/58. Class 83 (3). A feed mechanism for a cutting tool-holder of a machine-tool, such as a drilling machine, includes pneumatic means for the feed and is combined with hydraulic means adapted at the end of the approach movement to come into operation for reducing the effective power of the feed means during the period when the tool initially engages the work so as to protect the tool from sudden overload and then to become non-operative while the tool performs the cutting operation. The feed mechanism may be clamped to the hub 16, Fig. 2 (plan) of a drilling machine to rotate the normal feed sleeve. The spindle 14, Fig. 3, of the mechanism which engages the drill sleeve through a pinion (not shown), has a further pinion 13 secured thereto which engages a rack 12 formed on the outside of a pneumatic piston 11 operating in a cylinder 10. A valve 19 spring-pressed at one end is moved by a button 20 to change from forward to reverse feed movement. The valve 19 is held in the forward feed position by a latch 23. A cam-plate 26, Fig. 2, is adjustably secured to the outer end of the shaft 14 and carries an adjustable dog 29 in addition to an integral cam-lobe on the plate. These cams are relatively adjusted according to the thickness of the work being drilled and operate a roller follower 32 at the end of a plunger of an hydraulic dash-pot device 34 for reducing the rate of feed. Cam 29 also engages a pin 56 to reverse the motion at the end of the cutting stroke.
Patent GB-1004796-A (GB)
Title: Internal combustion engine induction system heating device
IPC: F02N19/10
Filed: 1963-08-30
Abstract: 1,004,796. Heating combustible mixture. FORD MOTOR CO. Ltd. Aug. 30, 1963 [Aug. 31, 1962], No. 34350/63. Heading F1B. The flow of engine coolant through a device 14 fitted in the induction system to heat the combustible mixture is restricted at idling to prevent overheating. The fitting 14 shown is clamped between the carburetter and manifold flanges and has an inlet 23 connected to the engine coolant passages and an outlet 27 connected to the inlet of the coolant pump 32. A spring-loaded check valve 28 in the outlet 27 is open at normal running speeds but closes at idling to restrict the flow of coolant through the fitting 14. The fitting 14, which as shown is adapted for a double barrel carburetter, has a baffle 37 which guides the coolant around both the induction passages therethrough.
Patent GB-420200-A (GB)
Title: Apparatus for intermittently raising water by means of compressed air
IPC: F04F1/06
Filed: 1933-12-06
Abstract: 420,200. Raising liquids by air pressure. SILVA, A. M. DA, 244, Rua Voluntarios da Patria, Rio de Janeiro, Brazil. Dec. 6. 1933, No. 34353. [Class 102 (ii)] Apparatus for raising liquids by compressed air comprises a submerged chamber H with check valves to admit the liquid, the liquid being discharged through a pipe 5 by compressed air admitted by a pipe 4. The pipe 4 is alternately connected to a compressor C, through pipes 3, 2 and to atmosphere, through pipes 6, by a rotating valve V, formed with grooves which connect passages at right angles in the valve casing. The valve V is driven by the motor B which drives the compressor. A compressed-air reservoir D is provided.
Patent GB-930350-A (GB)
Title: Vitamin bí¬12 preparations with prolonged action
Filed: 1961-09-26
Abstract: A vitamin B12 complex with prolonged activity which is soluble in lower aliphatic and aromatic alcohols and insoluble or sparingly soluble in water is obtained by reacting a vitamin of the B12 group with a low molecular condensation product of a carbonyl compound with 1-3C atoms and a polyvalent phenol. Preferably the condensation product is obtained from formaldehyde, acetaldehyde or acetone reacted with pyrocatechol, resorcinol, hydroquinone, pholoroglucin, hydroquinone or pyrrogallol, the phenols may also be further substituted in the nucleus by CH3, NH2 or COOH groups. Specified compounds are 2, 4, 21, 41, -tetrahydroxy-diphenylmethane, 4, 6, 41, 61, -tetrahydroxy 2, 21, dimethyl-diphenylmethane, methylene dipyrogallol and ethylidene diresorcinol.  The complex may be rendered completely water insoluble by the addition of zinc, nickel, cobalt, copper, manganese, iron or aluminium ions in a proportion of 1-20 mgs. of metal to 5 mgs. of vitamin B12. The complex may be used for parenteral administration in saline.ALSO:A Vitamin B12 complex with prolonged activity which may be used for parenteral administration, and which is soluble in lower aliphatic and aromatic alcohols and insoluble or sparingly soluble in water is obtained by reacting a vitamin of the B12 group with a low molecular condensation product of a carbonyl compound with 1-3 C atoms and a polyvalent phenol. Preferably the condensation product is obtained from formaldehyde, acetaldehyde or acetone reacted with pyrocatechol, resorcinol, hydroquinone, phloroglycin, hydroquinone or pyrrogallol, the phenols may also be further substituted in the nucleus by CH3, NH2 or COOH groups.  Specified compounds are 2,4,21,41-tetra - hydroxy - diphenylmethane, 4,6,41,61-tetra-hydroxy-2, 21-dimethyl-diphenylmethane, methylene dipyrrogallol and ethylidene diresorcinol.  The complex may be rendered completely water-unsoluble by the addition of zinc, nickel, cobalt, copper, manganese iron or aluminium ions in a proportion of 1-20 mgs. of metal to 5 mgs. of Vitamin B12.
Patent GB-362633-A (GB)
Title: Improvements in driving mechanism for motor vehicles
IPC: F02B75/22
Filed: 1930-11-15
Abstract: 362,633. Motor vehicles. NORTH, O. D., 76, Elm Park Mansions, Park Walk, Chelsea, London. Nov. 15, 1930, No. 34455. [Classes 79 (ii) and 79 (iii).] Comprises a transverse internal-combustion engine 1, a transverse driving shaft 4<a> connected at one end to the engine by change-speed gearing and connected directly at its other end to the axle 3 of the driving wheels 4 by a final reduction and/or differential gear 7, the driving shaft 4<a> being between the axle and the engine, and the engine being located between the change-speed gear and the reduction or differential gear. The driving axle may be at the front or rear of the vehicle. In the construction shown in the Figure the engine drives the shaft 4<a> through a clutch 18, an epicyclic or other change-speed gear-box 16, and a two-speed chain gearing 11, 12 in series with the gear-box 16. The shaft 4<a> is driven from the final change-speed gear shaft 10 through a universal joint 9 and drives the reducing and differential gear 7 through another universal joint 5. Epicyclic or other reversing gear may be combined with the reducing gear. In a modification spur gear trains of different ratios controlled by clutches are mounted on the driven shaft of the clutch 18 and the shaft 10.
Patent GB-419777-A (GB)
Title: Improvements in or relating to pianofortes and like mechanically operated string instruments
IPC: G10C3/08
Filed: 1933-12-07
Abstract: 419,777. Pianofortes. CHALLEN & SON, Ltd., C. H., and EVANS, W., Archer Street, Camden Town, London. Dec. 7, 1933, No. 34512. Addition to 419,778. [Class 88 (ii).] In a pianoforte having overlapping groups of strings and as claimed in the parent Specification, wherein one bridge is supported above the soundboard by an arm disposed above the soundboard and fixed to it in the locality of the anchorage of another bridge, the arm 11 is also fixed to the soundboard by a further spacing piece or pieces 15 which may, if desired, be situated under the first bridge 10. The area of contact between the spacing piece 13 and the soundboard may be greater than that between the arm 11 and the second bridge 14.
Patent GB-1528772-A (GB)
Title: Process for recovering metal values from a manganese ore
IPC: C22B3/04
Filed: 1975-08-20
Abstract: 1528772 Treating manganese ores KENNECOTT COPPER CORP 20 Aug 1975 [26 Aug 1974] 34514/75 Heading C1A An ore (particularly deep sea nodules) containing manganese dioxide is treated to enable base metal values therein to be recovered by (a) calcining to convert MnO 2  to intermediate oxides of manganese, (b) reducing to convert these intermediate oxides to MnO, (c) leaching with an ammonia-ammonium carbonate solution containing cupric copper, and (d) oxidizing the metal values in the leached solution with raw manganese ore to convert them to a higher oxidation state and to enable the metal values in the raw ore to be leached in the leach solution.
Patent GB-847678-A (GB)
Title: Improvements in or relating to jet propulsion nozzles
Inventor: COLLEY ROWAN HERBERT
IPC: F02K1/12
Filed: 1957-11-05
Abstract: 847,678. Jet-propulsion nozzles. ROLLSROYCE Ltd. Nov. 3, 1958 [Nov. 5, 1957], No. 34533/57. Class 110 (3). A convergent-divergent jet-propulsion nozzle comprises an annular ring of flap elements 20, each having an upstream convergent portion 20a and a downstream divergent portion 20b and an annular wall 15 which encircles the flap elements at their upstream ends and against which the flap elements form a gas-sealing contact. The flaps are movable relative to the wall 15 thus varying the area and/or configuration of the nozzle and are arranged to bear on a sealing bead 16, attached to the encircling wall thus being free to pivot on the bead 16 and also to move axially relative to the bead whilst maintaining gas-sealing contact. On the external surface of the downstream portion of each flap element is a ramp 20d, inclined to the nozzle axis, the ramps being engaged by rollers 21 connected to an axiallymovable ring 23. The flap elements are also connected by links 30 to another axiallymovable ring 31, and by means of axiallyextending shafts 24, 32 externally of the nozzle, rings 23, 31 respectively can be made to move axially by two separate power means 28, 35. The ramps with which the rollers cooperate are substantially parallel to the surfaces of the flap elements which bear on the bead, but they can be curved and thus together with the independently movable rings a variation of area and/or configuration of the nozzle can be achieved. The nozzle also comprises a second annular wall 14 internally of the bead 16 which defines a chamber 17 into which the upstream ends of the flap elements project, and into which cooling air is fed to assist in cooling the flap elements. Sealing between the flap elements is effected by strips 37, internally overlapping the adjacent edges of the flap elements, and maintained in contact by flutes 14a in the second wall and by retaining clips at their downstream ends.
Patent GB-1461524-A (GB)
Title: Prophylactic dental compositions
IPC: A61Q11/00
Filed: 1974-08-06
Abstract: 1461524 Dental cleaning agent J C MUHLER and H R ALEXANDER 6 Aug 1974 [13 Aug 1973] 34620/74 Heading A5B [Also in Divisions C1 and C4] A dental cleaning and polishing agent comprises feldspar particles, substantially all of which pass through a 20 mesh screen (U.S. Sieve Series-ASTM E-11-61) and have a particle size of 37-420 microns. The agent may also include a binder, e.g. hydroxymethyl or hydroxymethyl cellulose, a humectant, e.g. glycerol, mannitol, sorbitol or propylene glycol, stannous fluoride, sodium fluoride, titanium dioxide, saccharin, flavouring, e.g. peppermint, water, finely-divided silica, meta-phosphoric acid, sodium lauryl sulphate, colouring, carboxymethyl cellulose, or magnesium aluminium silicate. It may be made up as a twocomponent pack, e.g. a two-compartment polythene sachet.
Patent GB-651213-A (GB)
Title: A valve voltmeter
IPC: G01R19/00
Filed: 1947-12-30
Abstract: 651,213. Thermionic valve voltmeters. TESLA; ELECTRIC & RADIO INDUSTRY, NATIONAL CORPORATION. Dec. 30, 1947, No. 34658. Convention date, Aug. 16, 1946. [Class 37] In a valve voltmeter the part of the valve between the cathode and one of the other electrodes in a triode or multi-grid valve is connected as a diode rectifier. As shown in Fig. 1 the part between the cathode 4 and grid 5 of a triode 3 is connected as a diode voltmeter, the voltage to be measured being applied between terminals 1, 2. A resistance 8 and meter 9 are connected in parallel with a condenser 7. Adjustment of the working point and of the sensitivity of the voltmeter is effected by applying a bias to the anode 6. This is tapped off a potentiometer 10 in parallel with a condenser 11, which is in series with a rectifier 12 and A.C. source 13. A compensating reverse current may be fed through a resistance 34 from a potentiometer 35 fed from an A.C. source 33 through a rectifier 37. A condenser 36 is connected in parallel with the potentiometer 35. In an alternative arrangement, Fig. 2, the voltage to be measured is supplied through a condenser 32 between terminals 1, 2 between which is connected a series resistance 30 and condenser 31, in parallel with which is the meter 9. Fig. 3 shows a voltmeter employing a diode-triode 14. The part between the cathode 15 and grid 16 is connected through a condenser 17, resistance 18, and meter 19 as a diode voltmeter. Bias for the anode 20 is tapped off a potentiometer 21 and is obtained by rectifying the A.C. voltage in the diode 22, 15. For very high frequencies an acorn valve 26 is substituted, by means of a switch 38, for the triode section of the valve 14, the bias for the anode 29 being tapped off the potentiometer 21 and rectified by the diode section 22, 15.
Patent GB-1103295-A (GB)
Title: Push button operated electric switch
IPC: G05G1/02
Filed: 1965-08-13
Abstract: 1,103,295. Magnetic switches. INTERNATIONAL STANDARD ELECTRIC CORPORATION. 13 Aug., 1965 [20 Aug., 1964], No. 34725/65. Heading H1N. The push-button shaft 1 of a switch is guided in a passage formed by an upturned bushing 4 of a plate 3 through which the shaft extends and the head 2 is enlarged and provided with a depending annular flange 7 which overlies the bushing 4. A pin 5 secured to the bushing engages in a longitudinal guiding slot of the shaft 1. The inner end of the shaft engages the actuating pin 16 of a plastics plunger 8 which is biased by a spring 9 so that a shoulder 12 abuts a further plate 11. An annular permanent magnet 13 within the block embraces and actuates a fixed sealed magnetic reed contact unit 14.
Patent GB-469714-A (GB)
Title: Improvements in dinghies and the like
IPC: B63B7/06
Filed: 1936-12-19
Abstract: 469,714. Collapsable boats. CAVENDER, A. S. Dec. 19, 1936, No. 34979. [Class 113 (ii)] A dinghy constructed of disconnectable parts comprises a sectional hinged bottom a held in alignment by the turnbuckles a<4>. The removable knees d engage in guides a<6> on the sections and at their upper ends are provided with pegs d<1> which engage in holes in a sectional rail e. A stiffener h is threaded through a canvas tube g at the upper edge of the removable rubber skin f. An L-section gunwale j protecting the edge is held in position by threaded bolts j having segmental heads j<2> which are passed through horizontal slots in the stiffener h and vertical slots e<6> in pieces e<4> mounted on the rail. The dinghy is expanded to tighten the jacket laterally by rotating the eccentrics r which bear on the lower ends of the knees d and fore and aft by straightening a toggle b<2> interpolated in the keel c and bearing against the base of the stem c<1>. The hinged stem is provided with an hinged seat supported on a pillar on the bottom.
Patent GB-447251-A (GB)
Title: The manufacture of azodyestuffs
IPC: C09B31/16
Filed: 1935-08-27
Abstract: Trisazo dyes capable of forming metallic complex compounds are made by diazotizing aminodisazo dyes containing 8-aminoquinoline or its nuclear substitution products as end component, and coupling with a further azo component.  The following dyestuffs are described: aniline-2 : 5-disulphonic acid or 2-naphthylamine - 4 : 8 - disulphonic acid --> a -naphthylamine --> 8-aminoquinoline --> N-phenyl J acid (blue on cotton turning to greenish blue and grey respectively when converted into the copper complex compound). Specification 417,489 is referred to.
Patent GB-1525104-A (GB)
Title: Electrochromic structure
IPC: G02F1/1523
Filed: 1975-08-22
Abstract: 1525104 Controlling light AMERICAN CYANAMID CO 22 Aug 1975 [3 Sept 1974] 35033/75 Heading G2F In a variable absorption light transmitting or reflecting device comprising a counter-electrode 6, and a transparent electrode 2, 3 on which is disposed a layer 4 of persistent electrochromic material (material exhibiting a change in optical absorption in response to an electric field, such charge being reversed only when the material is subjected to a reverse polarity field or a short circuiting condition), a layer 5 of porous insulating material is provided between and in contact with layer 4 and the counter-electrode 6, and is wetted by a liquid electrolyte contained in a space 7 defined by seals 9, a glass plate 8 and the layers 2-6. As particularly described, the layer 5 may be of silica, alumina or glass, and the electrolyte is H 2 SO 4 . The layer 4 may be any of a number of transition metal compounds, but particularly WO 3 . Counter-electrode 6 may be a transparent Pd layer or it may be opaque. For a layer 4 of WO 3 , counter-electrode 6 is preferably of WO 3  and graphite.