baber/WOPTO huggingface dataset:
Patent GB-867227-A (GB)
Title: Improvements in or relating to the manufacture of hydrocyanic acid
IPC: B01J19/08
Filed: 1957-07-31
Abstract: <PICT:0867227/III/1> Hydrocyanic acid is produced from a gaseous mixture of ammonia and a lower hydrocarbon of the aliphatic series by exposing it at sub-atmospheric pressure to the action of an electric arc discharge, supplying it at a rate of 120-350 litres (measured at N.T.P) per hour per kilowatt of power consumed by the arc.  An oxygen free mixture of ammonia gas with gaseous lower aliphatic hydrocarbon, i.e. one containing 1-12 carbon atoms/molecule, preferably one containing 1-4 carbon atoms/molecule, is introduced through 17 into the reactor 15, which is provided with a double wall 16, a water jacket, and means to evacuate the interior thereof to a pressure of 40-120 mm., preferably 40-75 mm. of mercury and at a rate depending upon the hydrocarbon used.  Thus for methane the rate is 270-350 litres/hour/kw of power consumed by the arc; 240-260 litres/hour/kw when the hydrocarbon contains 2 carbon atoms per molecule and 180-240 litres/hour/kw.  When the hydrocarbon contains 3 carbon atoms or more.  The mixture of ammonia and hydrocarbon may contain stoichiometric proportions of the reactants or a 10% excess of either one.  The mixture is passed through an electric arc struck between electrodes 18 and 19 which are preferably obliquely disposed to one another and which rotate about their axes.  The electrodes may be further drawn apart by mechanisms 7 and 71 which causes the arc to be extended through the gas.  The rate of supply of the gases is such that they are subjected to the arc for only 0.04 to 0.001 seconds. The electrical circuit shown in the Figure is a device for maintaining a high voltage: amperage ratio, e.g. 400:1 to 1500:1 and also a temperature of 1100-1500 DEG C., preferably 1100-1300 DEG C., in the arc.  After reaction the gaseous product containing hydrocyanic acid is removed from the reactor at 20 to be cooled and the acid recovered.
Patent GB-242055-A (GB)
Title: Improvements in ruling pens
IPC: B43K17/00
Filed: 1924-10-14
Abstract: 242,055. Janes, A. E. Out. 14, 1924. Ruling - pens. - To prevent the user's view from being obstructed by his hand &c., the forward end portions a, b of the nib-blades are arranged out of alignment with the handle d and are connected to the root portion c by a cranked part e, the arrangement being such that the axis y of the handle intersects the axis x of the blades at or about the point of the pen. The cranked part c is preferably arranged at the position of the user's finger and thumb when grasping the pen, and the adjusting screw g is arranged at the junction of the part e with the root portion. Adjustment is effected by a nut f co-operating with a screw g which is prevented from rotating by a pin g<1> passing through it and seating in a groove g<2>.
Patent GB-1321726-A (GB)
Title: Method of an apparatus for fluidizing particulate substance
IPC: A23C1/00
Filed: 1971-04-19
Abstract: 1321726 Evaporators; spray drying MORINAGA NYUGYO KK 19 April 1971 [13 June 1970] 24379/71 Heading B1B [Also in Divisions B8 and F4]  Non-agglomerating powder is obtained from a solution of solid material, e.g. milk, by spraying it through nozzle 53 into the upper part of tower 52 and introducing hot air into the top of the tower through line 54; the dried powder collecting in the lower, conical part of the tower being contacted with cool air, introduced tangentially through slits 13, whereby the powder is cooled and given a downward whirling movement in the form of a thin fluidized bed to the outlet 11. A mixture of hot and cold air is withdrawn from the central section of the tower, and flows to a cyclone where entrained powder is separated, the separated powder being returned to the lower part of the tower.
Patent GB-1463105-A (GB)
Title: Uranium alloys
IPC: C22C43/00
Filed: 1974-06-03
Abstract: 1463105 Uranium and silicide containing aluminium ATOMIC ENERGY OF CANADA Ltd 3 June 1974 [28 June 1973] 24485/74 Heading C1A [Also in Divisions G6 and C7] A nuclear fuel rod alloy comprising in weight per cent:- except that when the Al content is 1À5% or less, the silicon content is less than 3À5%, has a good aqueous corrosion resistance at both 300‹ C. and 550‹ C. when the structure consists of delta phase U 3 Si containing about 0À5% dissolved Al, U 3 Si 2  and UAl 2 . This can be achieved by H.F. induction melting a charge of U, Al and Si in a zirconia crucible under argon, rapidly chill casting under vacuum to produce a fine microstructure and then heat treating for a long period (72 hours) at 800- 850‹ C. in vacuum to convert the as-cast structure.
Patent GB-299958-A (GB)
Title: Improvements in and relating to locking fittings for windows, doors, fanlights and the like
IPC: E05F11/00
Filed: 1927-09-19
Abstract: 299,958. Elliott, R. Sept. 19, 1927. Latches, sliding, for securing windows, doors and like articles in one or more positions, are, when withdrawn, held back by a lever which is tripped to release the latch when a trigger engages an inclined surface on closing the window. The latch bolt a can engage either of the holes h, h<1> in a plate g in the frame. It is withdrawn by a lever c one arm c<1> of which is so shaped that it co-operates with a shoulder a<2> of the latch to hold it withdrawn against the spring e<2>. Arms c', c<5> protrude the trigger b. On moving the sashes, the trigger b rides over the incline j on the upper sash and trips the lever c, releasing the latch which is forced into the hole h or h<1> by the spring when it reaches alignment therewith. An arm c<3> prevents the trigger from protruding when the latch is withdrawn. The casing d containing the latch-mechanism may be mounted on a casement window, or hinged door, the plate g being then mounted on the frame. A lip g<1> on the plate g prevents the entry of a knife between the sashes for tampering with the latch bolt. In the form shown in Fig. 13, the latch a has a curved bifurcated end co-operating with the limb o<1> of a lever c, which is rocked out of position for retaining the latch in the withdrawn position by the trigger b. Instead of a bifurcated end, the bolt may have a stud engaging notches s.
Patent GB-812410-A (GB)
Title: Process for reducing the sulphur content in iron and for economising in coke in cupola furnaces
IPC: C21C1/02
Filed: 1955-08-26
Abstract: A process for reducing the sulphur content of cast iron and for economising in coke and cupola furnaces comprises introducing into the furnace a calcium carbide having a melting point below 1800 DEG C., preferably between 1650 DEG  and 1700 DEG C.  The melting point of the calcium carbide may be further reduced by the addition of fluxing material.  Instead of calcium carbide having a melting point below 1800 DEG C. which is an impure material containing 69.4 per cent to 65 per cent of calcium carbide, commercial calcium carbide may be mixed with calcined lime, the mixture having a melting point below 1800 DEG C., e.g. 100 parts commercial calcium carbide with 12 parts calcined lime has a melting point of 1650 DEG C. The calcium carbide may be in granular form and blown into the furnace or it may be packed into containers, e.g. bags or sacks of paper or plastic or sheet iron containers.  The blast may be hot or cold and the cupola may have acid, basic, or neutral lining; in the case of an acid lining the amount of calcium carbide added must not be enough to produce a basic slag.
Patent GB-680175-A (GB)
Title: Improvements in or relating to tracer projectiles
IPC: F42B12/38
Filed: 1950-10-09
Abstract: 680,175. Tracer bullets. STROJARNE, NARODNI PODNIK, P., VALENTOVIC, V., CHROMEK, J., and SENKYR, V. Oct. 9, 1950 [Oct. 7, 1949], No. 24632/50. Class 9(i) The base of the tube 3 containing the tracer composition 4 is closed by a unit comprising a centring cap 6 and foil disk 5, the parts being retained by turning over the base of the usual bullet envelope 1 which surrounds the lead core 2. The. centre part of the cap may be thinned down to form an integral foil portion.
Patent GB-685457-A (GB)
Title: Improvements in and relating to agricultural cloches
IPC: A01G13/02
Filed: 1949-09-26
Abstract: 685,457. Cloches. ALEXANDER, T. F. N., and SIMON, A. P. W. Sept. 26, 1950 [Sept. 26, 1949], No. 24701/49. Class 20(i) A cloche forming machine comprises a chassis with means for supporting a pair of rolls of flexible material, means for paying the material off the rolls as the machine is advanced so that the two sheets of material are deposited on edge on the ground with their lower edges separated and their upper edges close to each other- As shown, reels 18 of material 20 (which may be a plastic sheet incorporating a metallic or plastic grid) are mounted on converging spindles 16 carried by a wheeled chassis 10 and rotatable through gearing by crank 24. When laying a cloche, the material 20 is passed over rollers 22 and the ends are anchored suitably; the machine is then moved backwards while material is payed out and supported at intervals by staples 40. The staples are arranged with one leg inside and one outside the cloche, successive staples being reversed to give a "woven" effect. The cloche may be lifted by reversing the process. The machine may be power driven or drawn by a tractor. When laying a cloche, instead of paying out the material it may be allowed to run freely as the machine is moved
Patent GB-588112-A (GB)
Title: Improvements in variable-pitch airscrews
IPC: B64C11/20
Filed: 1944-12-09
Abstract: 588,112. Variable-pitch propellers. DE HAVILLAND AIRCRAFT CO., Ltd., and THORBURN, J. W. Dec. 9, 1944, No. 24722. [Class 114] A propeller of which the blade pitch can be adjusted by the hydraulic gear 22, and bevel gear 18. The turning moment due to centrifugal force is balanced by a torsion tube 26, secured to the blade tip at 30, and to the hub at 28. The tube section is circular at its root and is progressively flattened towards the tip.
Patent GB-1171726-A (GB)
Title: Improvements in picture postcard.
Inventor: EINHORN ERICH
IPC: B42D15/04
Filed: 1968-05-23
Abstract: 1,171,726. Greetings cards. NAKLADATELSTVI ORBIS NARODNI PODNIK. 23 May, 1968, No. 24748/68. Addition to 1,065,876. Heading B6A. A greetings card as described in the parent Specification 1,065,876 is modified in that the transparencies 23, 24, 25, Fig. 4, are mounted by means of their overlapping edges to overlie the openings 19, 21, 22, Fig. 2, of a backing sheet 18 on to which is superposed a spacing sheet 26 provided with respective openings 27, 28, 29 in which are disposed the transparencies. The thickness of the backing sheet corresponds to the thickness of the transparencies, such that, when the obverse side of the marginal edges is adhered to the underlying edges of the openings 19, 21, 22 of the greetings card, the backing sheet 18 exhibits an even surface.
Patent GB-628086-A (GB)
Title: Improvements in or relating to the cold welding of ductile metals
IPC: B23K20/22
Filed: 1947-09-09
Abstract: 628,086. Jointing. GENERAL ELECTRIC CO., Ltd., and SOWTER, A. B. Sept. 9. 1947, No. 24765. [Class 83 (iv)] In cold welding two similar or dissimilar metals, e.g. aluminium and copper, of different hardness, the area of pressure application is inversely proportional to the hardness, being greater for the softer material. Co-operating press tools may be used to join aluminium and copper conductors &c. The co-operating surfaces are cleaned by scratch-brushing and for Brinell numbers of 21 and 42 the tools have areas <SP>9</SP>/ 16  inch by <SP>5</SP>/ 64  inch and ¢ inch by <SP>3</SP>/ 64  inch respectively for 20 S.W.G. material. The joint may be corrosion-proofed with pitch.
Patent GB-773761-A (GB)
Title: Improvements in closure caps for collapsible containers
IPC: B65D47/20
Filed: 1955-08-30
Abstract: 773,761. Container closures. ALBERDI, S. M. Aug. 30, 1955, No. 24886/55. Class 125(3). A closure cap for collapsible tubes &c. has its end wall formed by a diaphragm 11 pierced by an orifice 12 and radial slits 13, a sealing spider 21 consisting of central boss 22 and radial legs 23 being situated close behind the diaphragm so that pressure on the container causes pasty contents to be extruded through the slits which act as self-closing valves to close the tube when pressure is released.
Patent GB-1341880-A (GB)
Title: Process for the preparation of benzoyl chlorides and benzaldehydes
IPC: C07C45/43
Filed: 1971-04-19
Abstract: 1341880 Acid chlorides and aldehydes ARGUS CHEMICAL CORP 19 April 1971  [16 March 1970] 24970/71 Headings C2C and C2P The invention comprises the reaction of a carboxylic acid with a benzopolychloromethane of the general formula wherein Ar is a benzene ring or two or more benzene rings either fused together or linked by C-C bonds as in diphenyl or by a bridging radical which is inert to the reaction conditions, R<SP>1</SP> is a hydrogen or halogen atom, an alkoxy or hydrocarbon group or a heterocyclic group containing one or more N, O or S heteroatoms, singly or in combination, or a hydrocarbon or such a heterocyclic group having at least one substituent inert to the reaction, n is 0 or 1 and m 2  is 1-6, in the presence of stannous or stannic chloride at 40-170‹ C. and the recovery of the acid chloride of the carboxylic acid and the acid chloride or aldehyde corresponding to the benzopolychloromethane of the general formula wherein X is H or Cl, from the reaction mixture. Tris - (2 - dichloromethylphenyl) phosphate is prepared by chlorination of tri-o-tolylphosphate.
Patent GB-654073-A (GB)
Title: A machine for the production of corrugated cardboard
IPC: B31F1/28
Filed: 1947-09-12
Abstract: 654,073. Corrugated paper &c. DRY CORRUGATING METHOD V/AKSELBO, BERBOM OG DROSTHOLM. Sept. 12, 1947. No. 25082. Convention date, Jan. 14, 1944, [Class 96] [Also in Group VII] Cardboard &c. 6 from a roll 7 is corrugated between toothed rollers 4, 5 which are so dimensioned that only one tooth of one roller, e.g. the roller 5, is in driving engagement with the other roller at any time, the teeth which may have concave outer surfaces, being ridged at their edges and grooved along their bases to avoid rupturing the cardboard &c. and to soften it where it is sharply bent. Strips of backing material as from a roll 10 may be glued on to one or both surfaces of the corrugated sheet. The corrugating roller 5 may be supported at its ends only, or intermediately also. The product may be dried by highfrequency heating.
Patent GB-1282549-A (GB)
Title: Multiple orbiting screw mixing apparatus
IPC: B01F7/30
Filed: 1970-05-26
Abstract: 1282549 Mixing apparatus BAKER PERKINS Inc 26 May 1970 [26 May 1969] 25173/ 70 Heading B1C Mixing apparatus comprises a container 10 provided with intermeshing screws 18, 20 rotatable about their own axes and axes 14, 16 respectively, and arranged on rotation to scrape residual material off each others flight surfaces 18a, 18b, 20a, 20b, and the walls 10a, 12a of the container. Drive may be transmitted to the screws via crank members 24, 25 at the top and universal joints 30, 31 at the bottom. The screws may be either of the same hand and co-rotating, or of opposite hand and counter-rotating. Material may be discharged through door 25 into hopper H. The semifrusto conical side walls of the container may be joined by generally linear portions having a length equal to the distance between axes 14, 16 (Figs. 3, 4 not shown).
Patent GB-197254-A (GB)
Title: Marker for erecting tents
IPC: E04H15/62
Filed: 1922-09-18
Abstract: 197,254. Allnatt, Ltd., and Allnatt, J. C. Sept. 18, 1922. Tents.-An auxiliary device for use in erecting tents, whereby the pegs are spaced accurately, consists of a plate A with projecting feet E and a central peg B having an extension C on which is swivelled a rope D. The upper surface of the plate is marked to indicate the circumferential positions for the pegs.
Patent GB-182077-A (GB)
Title: Phonograph record and other holder or file
IPC: A47B81/06
Filed: 1921-09-23
Abstract: 182,077. Work-Organizer Specialties Co., Inc., (Assignees of Casey, C. C.). June 24, 1921, [Convention date]. Racks and the like; attaching files to covers.- A holder for phonograph records, papers, &c. comprises a back board 1 and a cover 2 with stepped compartments between, each compartment having a closed inner end and an open outer end, and provided with means for closing the open ends. Binding-strips 14 embrace front and rear walls 6, 8 of each compartment, and angle-strips 17a are secured between the walls and to the back board. Flaps 15 connected to the rear walls by bindings 16 are long enough to overlap the front walls and close the compartments and also are long enough to be overlapped by the adjacent superposed compartment. Each flap has a window 19 stamped out therefrom and turned back upon the rear wall, and the binders 16 are embraced by metal channel members 20 constituting finger-pieces and having inwardly bent walls 23. A celluloid casing 21 surrounds each member 20 and between them is positioned an index card 22. Each compartment is formed by adjacent pieces of material having a double fold 17
Patent GB-944214-A (GB)
Title: Process for the manufacture of foamed structures from plasticized polyvinyl chloridecompositions
IPC: C08J9/12
Filed: 1962-07-02
Abstract: 944,214. Moulding foamed polyvinyl chloride articles. WACKER-CHEMIE G.m.b.H. July 2, 1962 [July 6, 1961], No. 25316/62. Addition to 906,067. Heading B5A. [Also in Division H5] In a method of making foamed polyvinyl chloride articles as described in parent Specification, the intensity of the high-frequency field used to gelatinize the mass is increased as the temperature of the foamed mass is increased. The process may take place in moulds or continuously on a conveyer belt which may be made of metal and comprise one of the electrodes.
Patent GB-1152232-A (GB)
Title: Improvements in or relating to Electrical Sockets
Inventor: OXLEY ROBERT FREDERICK
IPC: H01R13/11
Filed: 1965-06-16
Abstract: 1,152,232. Two-part couplings. R. F. OXLEY. 16 June, 1966 [16 June, 1965], No. 25385/65. Heading H2E. A resilient socket comprises a tubular (brass) member 18 having two parallel-sided slots 14, 16 extending from its open end parallel to its axis whose sides comprise in a cross-sectional view (Fig. 1), parts of two parallel chords which both lie on the same side of the axis of the socket. The socket wall is inwardly compressed (Fig. 4) by a surrounding resilient sleeve 20, preferably of P.T.F.E., or by one or more resilient bands or U-shaped clips located in external grooves in member 18. The socket may be extended axially to provide a connection means for an electrical conductor. The two slots may be cut in a single cutting operation.
Patent GB-361439-A (GB)
Title: Rock drills
IPC: E21B17/042
Filed: 1930-08-27
Abstract: 361,439. Percussive drills. PERRY, K. M., 3471, Drummond Street, Montreal, Canada. Aug. 27, 1930, No. 25540. [Class 124.] The bit 21 is secured to the drill shank 11 by a stud 17 screwed into both and of such a length that it cannot reach the inner wall of the socket in the shank. In a modification a headed bolt engages an unthreaded recess in the bit. In a further modification the bit has a helical projection 27 engaging a corresponding recess 28 on the shank to relieve the torsional stress in the connection 17 when the drill is rotated.
Patent GB-1377702-A (GB)
Title: Stabilised supply unit with accumulator battery incorporated
IPC: H02J9/06
Filed: 1972-05-31
Abstract: 1377702 Automatic voltage control SOC DES ACCUMULATEURS FIXES ET DE TRACTION 31 May 1972 [4 June 1971] 25556/72 Heading G3R In a power supply, having a rectifier circuit providing an output voltage from an A.C. mains input, and a stand-by battery connected to the A.C. mains through a charging set and to the supply output through a diode, the voltage difference between the rectifier circuit output and the battery is maintained constant and positive. In an embodiment, load 15 is supplied from A.C. mains 10 via a leakage field transformer 20 to 23, rectifier bridge 24 and thyristor 25, the stand-by circuit including battery 13 and diode 14. In the thyristor firing and regulating circuit, which is fed from a constant voltage across Zener diodes 31, 32, a differential amplifier 60, 70 compares the difference between the battery and thyristor output voltages with a reference set by potentiometer 61, any error changing the firing angle of thyristor 25 via a pulse generator, including capacitor 48 and unijunction transistor 35, the pulses being synchronized with the output of rectifier 24 by transistors 40, 45. Load 15 may be an inverter supplying current to battery 13, in its rectifying mode, via diode chain 74. The system may include a transistor and relay switching circuit Fig. 3 (not shown) measuring the voltage across diode 14 to give an indication e.g. alarm, when the mains fails and battery 13 is discharging.
Patent GB-1294793-A (GB)
Title: Pipe coating
IPC: B29C63/10
Filed: 1971-04-19
Abstract: 1294793 Helically-wound pipe coverings KENDALL CO 19 April 1971 [16 April 1970] 25611/71 Heading F2P In a covering for a pipe 10, an edge region 28 of each turn of a helically-wound tape 16 is adhered to the opposite edge region 26 of the preceding turn and to the adjacent region of an underlying, helically-wound tape 12 by athermoplastic adhesive 24, which was applied to the edge region 28 in the form of a hot melt. The pipe 10 may be of metal. The tapes 12 and 16 and the adhesive 24 may be of polyethylene. Alternatively, tapes 12 and 16 may be of polypropylene, P.V.C. or A.B.S. resin.
Patent GB-1042249-A (GB)
Title: Electric resistance element and method
IPC: H01C1/148
Filed: 1964-06-22
Abstract: 1,042,249. Resistors. CORNING GLASS WORKS. June 22, 1964 [June 27, 1963], No. 25727/64. Heading H1S. A resistance comprises a cylindrical dielectric member having on the surface thereof resistive material in the form of a spiralled ribbon (Fig. 4, not shown). The ribbon comprises a number of parallel paths 24 extending between terminal bands 26,28, Fig. 3, showing the ribbon as laid out in a flat plane.
Patent GB-628223-A (GB)
Title: Improvements in and relating to paving tiles
IPC: E01C5/16
Filed: 1947-09-23
Abstract: 628,223. Paving tiles. MONTROSE FOUNDRY, Ltd., and HUNTER, J. Sept. 23, 1947, No. 25859. [Class 87(i)]  A cast iron paving tile is formed on its upper surface with parallel V-section grooves a, b, c and semi-circular-section grooves d, e arranged in herring-bone fashion. Inclined lugs are provided on the lower face and small holes g extend through the tile.
Patent GB-182043-A (GB)
Title: Improvements in steering mechanism of motor cars
IPC: B62D7/16
Filed: 1921-09-30
Abstract: 182,043. Royce, F. H. Sept. 30, 1921. Steering-gear.-A ball joint comprises a sleeve split from end to end by a single split or two opposite splits and embracing the end of the tube or rod to which it is attached, the ball on the lever to which the rod is pivoted, and the two pads between which the ball lies. As shown, the sleeve a is split into halves and secured to the pad e and the rod c by means of bolts b, b<1> lying in flattened surfaces e'. The pad f lies in a tapered socket in the end of the rod and a tapered bolt k is passed transversely through the end of the rod. The pad e is adjusted by means of a screw h mounted in the end of the sleeve. The ball d is larger than the hole a<3> in the sleeve, through which the neck passes, to prevent accidental separation of the parts.