baber/WOPTO huggingface dataset:
Patent GB-574676-A (GB)
Title: Improvements in arrangements for locating objects by electromagnetic waves
IPC: G01S7/10
Filed: 1942-04-28
Abstract: 574,676. Radiolocation systems. STANDARD TELEPHONES & CABLES, Ltd. April 28, 1942, No. 5720. Convention date, March 13, 1941. [Class 40 (v)] A system for locating objects comprises means for determining the distance of the object from a reference point by reflected electromagnetic waves, means for determining the direction of the object from the reference point, and a cathode-ray oscillograph, the beam of which is intermittently deflected to a position at which it indicates the distance, and from this position is further deflected in a radial direction corresponding to the direction of the object. Fig. 2 shows a system which may be carried on an aircraft and comprising four directional antennµ having reception patterns directed respectively upwardly, downwardly, to the right, and to the left, of the line of flight of the aircraft, which receive pulses generated by a transmitter 11, radiated by an antenna 12 and reflected from the object to be located. The energy difference of the signals received by the " Up " and " Down " antennµ is applied by a network 13 to a receiver 15 which applies a corresponding deflection potential between the vertical deflection plates 7, 8 of a cathode-ray indicator. Similarly, by way of a network 16 and receiver 18, a deflection potential corresponding to the difference of energy of the signals reaching the " Left " and " Right " antennµ is applied between the horizontal deflection plates. The beam as a result is deflected in a radial direction indicating the general direction of the object in relation to the line of flight. Thus, the trace 22 in Fig. 3 indicates an object below and to the right of the line of flight. The distance indications are obtained by scanning the beam by a time-base generator 30 synchronized with the pulse generator 11 and by applying to a brightness control grid, by way of the networks 13, 16 and a receiver 19, signals representing the sum of the energies received by the four antennµ from the reflected pulses. This produces a spot indicating the distance on a linear distancescale, shown as vertical in Fig. 3. The application to the deflecting plates of the potentials is delayed, so that it occurs only during a latter portion of the time during which the beam exists. In consequence, a spot is first formed on the vertical scale representing the distance of the object, and the linear trace such as 22 extending from it and representing the direction is formed subsequently. The four indications shown in Fig. 3 are such as would be obtained in succession when flying towards a reflecting object and correcting the line of flight by reference to them.
Patent GB-1121455-A (GB)
Title: Trihydroxybiphenyls and their preparation
Inventor: SCHMUKLER SEYMOUR
IPC: C08K5/13
Filed: 1966-02-09
Abstract: Trihydroxy biphenyls of the general formula <FORM:1121455/C3/1> in which each R is a C1-C15 hydrocarbon radical, are used as antioxidants for epoxy resins.ALSO:Trihydroxy biphenyls of the general formula <FORM:1121455/C4-C5/1> in which each R is a C1-C15 hydrocarbon radical, are used as antioxidants for lubricating oils, gasoline and motor oils.ALSO:The invention comprises trihydroxy biphenyls of the general formula <FORM:1121455/C2/1> in which each R is a monovalent hydrocarbon radical having 1-15 carbon atoms.  They may be prepared by reacting the corresponding tetrasubstituted diphenoquinone with axcess acetic anhydride and sulphuric acid to give the corresponding tetra-substituted triacetoxy biphenyl which is reacted with a C1-C4 alcohol under acid conditions to give the required trihydroxy compound.  The starting diphenoquinone may be obtained by an oxidative coupling reaction on a phenol using a copper chloride tertiary amine complex catalyst. Examples are given of the preparation of 3,31,5,51 - tetramethyl - 2,4,41 - trihydroxybiphenyl, and 3,31,5,51 - tetraphenyl - 2,4,41-trihydroxybiphenyl. The trihydroxy biphenyls may be used as antioxidants, e.g. for safflower oil methyl ester.
Patent GB-285923-A (GB)
IPC: C10G1/08
Filed: 1926-09-09
Abstract: 285,923. I. G. Farbenindustrie Akt.- Ges. Sept. 10, 1925, [Convention date]. Divided on 258,272. Hydrogenation, destructive.-In the destructive hydrogenation of carbonaceous materials, catalysts are used containing difficultly reducible metallic oxides, or carbonates of metals of the 3rd to the 5th group of the periodic system forming such oxides. Catalysts specified are alumina, thoria or other rare earths, and oxides or carbonates of vanadium; they may be used alone or mixed, and iron or other metals of the eighth group or compounds thereof may be added. In place of hydrogen there may be used sulphuretted hydrogen or other reducing gas containing hydrogen, water gas, or hydrogen mixed with nitrogen, with water vapour, or with methane or other hydrocarbon; or the hydrogen may be produced in the reaction vessel e.g. from water vapour and carbon monoxide or hydrocarbons. In an example brown coal producer tar is continuously passed with hydrogen and nitrogen over porous material coated with vanadium oxide or thoria, a temperature of 500‹ C. and a pressure of 200 atmospheres being maintained. The product contains 50 per cent of petrol. Specifications 258,272 and 286,679 are referred to. Reference has been directed by the Comptroller to Specifications 28460/11, 12188/15, 198,071, 213,295, 239,556, 247,582, 247,583, 247,536, 247,587, 249,156, 249,501, 251,264, and 257,256.
Patent GB-1254617-A (GB)
Title: Optical parametric device
Inventor: ANDERSON DEAN BROWN
IPC: G02F1/39
Filed: 1969-12-09
Abstract: 1,254,617. Optical parametric devices. NORTH AMERICAN ROCKWELL CORP. 9 Dec., 1969, No. 60095/69. Heading H3B. An optical parametric device comprises a waveguide formed of a plurality of layers of dielectric material, one or more of which exhibits a non-linear susceptibility. In operation, the signal, pump and output frequencies #s, #p and #i must all be propagated with the same phase velocity, and this is effected by a suitable choice of layer thickness and refractive index, i.e. a suitable refractive index profile. Fig. 5 relates to a three layer waveguide having a central layer of thickness D and refractive index 3À5, while the outer layers are of thickness D/2 and refractive index 4À0. An effective frequency 2#D/#. is plotted against the inverse of phase velocity (i.e. the effective refractive index) C/Vp, where #. is the light wavelength in free space, and C is the velocity of light in vacuo. Solid curves represent TE n  modes, and dotted curves TM n  modes, n being the mode order 1-8 shown adjacent the curves. For the line 50 of constant phase velocity, it is seen that suitable #s, #i and up are available corresponding to a signal in the TE 1  mode, a pump in the TM 3  mode and an output in the TE 3  mode. Such frequencies, where #i and #p have the same order but one is TE and the other TM are stated to be the most satisfactory. Other refractive index profiles are described, Figs. 3-8 (not shown). To ensure that light entering the waveguide is of a suitable mode, a structure shaped as in Fig. 10 or 11 may be used, wherein the layered waveguide has a tapered end 65 or 75, and is mounted on an insulating substrate 61 or 71. A wider choice of refractive index profiles and hence operating frequencies may be obtained by using birefringent dielectrics since they exhibit two refractive indices, or by using materials whose refractive indices may be varied by applied magnetic or electric fields or heat. Broadband operation may be achieved if the line of constant phase velocity meets the curves near a point of inflection, Figs. 6, 7 (not shown). Materials referred to are: for the substrate, single crystal sapphire, chrysoberyl, BeO or MgO, and for the dielectric, single crystal GaP, GaAs, Ge, CaCl 3  or cinnabar (i.e. α-HgS). Polycrystalline materials may be used. The width of the waveguide is not critical but should exceed ten times the thickness. At ratios less than this the refractive index profile depends more on the cross-sectional area than the thickness.
Patent GB-701964-A (GB)
Title: A method of and apparatus for combining a plurality of filaments
IPC: D01H1/00
Filed: 1949-03-04
Abstract: 701,964. Twisting filamentary material. KENYON, W. A. Jan. 18, 1950 [March 4, 1949], No. 6043/49. Class 120(2) [Also in Group XXV] Each filament of a hard laid cord, such as may be used for fishing lines or chalk lines, has it initial twist removed temporarily by false twist devices before twisting the filaments together at a main twisting station. Pre-twisted filaments F<SP>1</SP>, F<SP>2</SP>, F<SP>3</SP> are passed between driven rollers to a false twisting station FT, which eliminates the initial twist in each filament between the supply and the false twisting station and removes cockles. The twist is'restored to each filament between the false twisting station FT and the main twisting device MT simultaneously with the twisting together of the filaments. A grooved conical guide member 25 may be provided. The false twisting station comprises three rotatable tubes 11, 12, 13 carrying pegs 14, 15, 16 around which the filaments are looped.
Patent GB-724695-A (GB)
Title: Improvements relating to continuous weighing of powdered materials
IPC: G01G11/00
Filed: 1953-03-04
Abstract: 724,695. Automatic weight-control systems. SMIDTH & CO. AKTIESELSKAB, F. L. March 4, 1953 [March 5, 1952], No. 6055/53. Class 38 (4). [Also in Groups XVIII and XXXVIII] The rate of supply of a powdered material is measured or retroactively controlled to a constant value by weighing apparatus comprising an inclined pneumatic channel conveyer with means for forcing air upwards through material resting on air air-permeable support in the channel so that it is fluidized and flows along the support. In Fig. 8 air is supplied by pipes 80 to the bottom of material flowing in a channel and the difference in air pressure at the top and bottom of the material, which is proportional to the weight of material, is measured by a ring balance 84. The latter rotates a shaft carrying a mercury tube 88, the mercury in which makes and breaks various switch contacts sealed into the tube and energizes two or at most three of a circular arc of electromagnets 89 wound so that they alternately present south and north poles to an armature 93 mounted on an arm 92. Partitions 71a, 72a seal off the portion of air chamber 70 below this section of channel from the rest of the air chamber which is connected by a by-pass pipe 75. The arm 92 measures the weight of material in this section or retroactively operates through a cable a valve in the material supply pipe to render the supply constant, or a valve in an air-supply pipe for fluidizing the material and hence its rate of flow at a point upstream of the channel section for the same purpose. The arm 92 may also be one control element of an integrator indicating the total flow during a period.
Patent GB-751125-A (GB)
Title: Improvements relating to the manufacture of metal cases
IPC: B21D51/26
Filed: 1954-03-02
Abstract: 751,125. Extruding. BURKON GES. March 2, 1954 [March 2, 1953], No. 6160/54. Classes 83 (2) and 83 (4). Making electric condenser cases.-A metal case closed at one end, particularly for an electric condenser, is made by backwardly impact extruding a composite billet, comprising a soft annealed base-plate 1, Fig. 5, preferably of aluminium, with a layer 2 of solderable metal such as copper, whereby the solderable metal forms a lining for the case. The layer 2 may be plated, pressed, or rolled on to the base or it may be separate therefrom. The billet is lubricated during extrusion. The punch 9 has a sharp edge 11 and is provided with a stripper plate 12. The billets, which may be of circular or rectangular cross-section for making corresponding shapes of case, are independent or slit in the middle at 6, Fig. 3, so that the copper is partly or completely cut through. This tends to equalize the flow of the two metals during the extrusion. A rectangular extruded case 13 with lining 2 has indentations 15 for supporting an internal cover 14 which is subsequently soldered at 16, Fig. 8 (not shown), to the case.
Patent GB-809933-A (GB)
Title: Improvements in or relating to cage nuts
IPC: F16B37/04
Filed: 1956-02-29
Abstract: 809,933. Anchor-nuts. FIELD, C. L. May 9, 1957 [Feb. 29, 1956], No. 6280/56. Class 89(1) An anchor-nut comprises a strip-portion 3 having opposite-edges 4, or parts thereof, turned over to locate a non-circular-flange 5 of a nut-body 6, and bolt-receiving- aperture 9 in the strip having a depending- flange 11 forming a locating-pilot. The aperture may be elongated to allow adjustment of the body between stops 8 on the strip-portion.
Patent GB-124089-A (GB)
Title: An Improved Means for Cutting Chenille Cloth.
IPC: D06H7/04
Filed: 1918-04-13
Abstract: 124,089. Morton Sundour Fabrics, Ltd., and Morton, J. April 13, 1918. Vertical-cutter type for cutting sheet material in direction of feed; cutting chenille &c.- Chenille or other cloth is cut into strips by rotary disk cutters e working through slots d<1> in guideneedles d, the cutters and needles being both freely supported for lateral displacement. The needles may consist of short bars or be made cf wire.
Patent GB-116268-A (GB)
Title: Improvements in Processes for the Production of Articles from Viscose.
Inventor: BORZYKOWSKI BENNO
IPC: D01F2/06
Filed: 1918-04-15
Abstract: 116,268. Borzykowski, B. May 29, 1917, [Convention date]. Cellulose xanthates, making filaments and other articles from, processes for.-Threads and other articles are prepared from viscose solution in a fresh or only slightly matured and impurified condition. As precipitating baths, dilute acids (containing for example less than 5 per cent of sulphuric acid), or strong salt solutions of density greater than 18‹ B., may be used, and the threads are given an extended travel at least 10 cm. through the bath. Acids, up to 10 per cent of sulphuric acid or acid salts such as aluminium sulphate, may be added to the salt solutions. Alcohols, metallic salts, or organic substances such as the nitroso bases, referred to in U.S. Specification 1,143,569, for preventing deposition of sulphur on the threads, may be added to the precipitating baths. In examples, clear threads are formed by precipitating in a 2.5-3 per cent sulphuric acid bath, with a distance for precipitation of 25-30 cms. and a take-up speed of 40 ms. per minute, and artificial silk is made by precipitating in a solution of sodium and ammonium sulphates of a density of at least 22‹ B., containing 2-3 per cent of hydrochloric or sulphuric acid, and at a temperature of 35-50‹ C. Specifications 2529/02, 26472/12, 12090/13, and 834/14 are referred to.
Patent GB-581209-A (GB)
Title: Air cleaning
IPC: F01N5/00
Filed: 1944-04-05
Abstract: 581,209. Centrifugal air cleaners. STOKES, E. A., and VOKES, Ltd. April 5, 1944, No. 6362. [Class 23] A large volume of air is induced through one or more inlets 7 by the ejector action of, e.g. gases passing from an internal-combustion engine exhaust silencer 4 to an outlet 6, but only a thin, inner layer of cleaned air is taken through slots 2 to the engine intake, or elsewhere. Dust particles, and the major volume of air passes out through 6. The ejector action may be derived from a blower, fan, steam or an air jet. In a modification, the apparatus is adapted to fit a fish-tail exhaust, using two elongated curved walls instead of a circular wall 8. After leaving the cleaner, the air may be subjected to further cleanings. Specification 562,102 is referred to in the Provisional Specification.
Patent GB-415780-A (GB)
Title: Improvements in cans
IPC: B65D47/12
Filed: 1933-03-02
Abstract: 415,780. Cans for oil. INTERNATIONAL PATENTS DEVELOPMENT CO., 17, Battery Place, New York, U.S.A. March 2, 1933, No. 6427. Convention date, Jan. 14. [Class 66.] A can for oil has a spout 17 rigidly secured within a seating member 15 seamed to a flanged opening formed in the top. The base 22 of the spout, which may be raised as shown, is formed with pouring and vent openings 24, 25, through which corresponding perforations are made in the part 15 when the can is to be used. The pouring lip is directed towards a corner of the can top, and the forward edge is downturned at 20, the sides being beaded. A flanged cover 26 is provided, deep enough at the outer end to bear on the bead 13 of the can.
Patent GB-142604-A (GB)
Title: Improvements in or relating to motor road vehicles
IPC: B62D23/00
Filed: 1919-03-15
Abstract: 142,604. Evans, J. A. J. March 15, 1919. Bodies. - Relates to a combined chassis and body frame for a motor-vehicle. The frame is built of longitudinal girders 2 fitted with bracing wires 8 and connected by end members 6 and intermediate members 11. The engine and gearing are fitted to longitudinal members 12. The frame may be tubular as shown, or made of angle iron reinforced with wood or the like, and is preferably provided with an outer cover of sheet metal &c. In a modified construction, each girder has an upper and lower section, the upper section having a door aperture.
Patent GB-1029985-A (GB)
Title: Device for eliminating the glare of automobile headlights
IPC: G02C7/16
Filed: 1963-02-19
Abstract: 1,029,985. Anti-dazzle filters. P. MALIFAUD. Feb. 19, 1963 [Feb.19, 1962], No. 6654/63. Heading G2J. [Also in Division B7] A translucent screen 3, Fig. 2, to prevent dazzle of oncoming headlights in a zone 2, Fig. 1 (not shown) of a vehicle windscreen 1, is of generally triangular or trapezoidal shape and has a central tinted portion 4, which is progressively darker from the right hand side to the left hand side, edge portions 5 affording greater translucence and a transparent end portion 6, the portion 4 being subdivided into tapered zones 8 separated by narrow bands 9 of greater translucence. The wider ends of the zones 8 are nearest to the opposite of the road. The screen is secured to the windscreen by a suction cup 7. According to another embodiment Fig. 3 (not shown) the screen is comprised of two tinted zones separated by a transparent zone, the left hand zone being somewhat similar in shape and construction to the screen of Fig. 2 and the right hand zone being generally oval. According to Fig. (not shown) a screen according to the invention is fitted to each glass of a pair of spectacles or to the frames therefor.
Patent GB-113878-A (GB)
Title: Improvements in or relating to Metal Shaping and like Machines.
Inventor: FISH CHARLES JAMES
IPC: B23Q1/52
Filed: 1917-05-11
Abstract: 113,878. Fish, C. J. May 11, 1917. Shaping.-In a shaping-machine, the work-supporting table 6 is carried by a barrel or bearing 4, and can be angularly adjusted by worm gearing 15, 18. The barrel 4 is connected by a bolt 7 to the machine frame or a movable part thereon at one end, and is supported at the other end by an adjustable support connected thereto by bolts 14.
Patent GB-1046153-A (GB)
Title: Stabilisation of polymers
IPC: C08K5/134
Filed: 1965-02-17
Abstract: A polymer of an ethylenically unsaturated monomer is stabilized with an alkyl or phenyl ester of 1-hydroxy-2-naphthoic acid or 3-hydroxy-2-naphthoic acid.  The polymer may be polyethylene, polypropylene, polystyrene, polyvinyl chloride or polyvinylidene chloride.
Patent GB-325709-A (GB)
Title: Improvements in metal casement windows
IPC: E06B3/50
Filed: 1929-03-04
Abstract: 325,709. Gibbons, A. B. March 4, 1929. Multiple and sliding hinges. -In a metal casement window having the sash a pivoted to top and bottom links e pivoted to the frame, and wherein the hanging border or edge a<1> of the sash slides frictionally by means of pivots g in guides i across the window aperture and the pivots g and the pivots of the links e are arranged so as to be substantially in the same plane when the sash is almost completely closed, the sliding friction pivots g are located outside the plane of the sash and beyond its hanging border The pivots g are in the form of screws to permit adjustment of the friction between the pivot shoes h and channel guides i which are supported for resiliency on Z- section flange bars c projecting from the window frame b.
Patent GB-216602-A (GB)
Title: Improvements in or relating to compositions suitable for making or waterproofing roads
IPC: C08L95/00
Filed: 1923-03-10
Abstract: 216,602. Meadows, S. C. March 10. 1923. Compositions containing bituminous materials and india-rubber for making and waterproofing roads are obtained by adding to a bituminous or tarry base either rubber treated with a solvent or softening agent or rubber mixed with vulcanizing-agents. Petroleum residues may be added to increase flexibility, and filiers, such as sand, ground limestone, asbestos powder, and sawdust mav be used. Resinous rubbers such as pontianak and jelutong may be used, or rubber may be replaced by gutta-percha or balata. Compositions containing not more than 2¢ per cent of rubber can be applied in the melted state; those containing more than this amount are relatively infusible and may be cast into blocks. An example of a waterproofing-composition consists of 99.25 per cent of a tar base composed of 75 parts coal tar, 10 parts anthracene oil, 10 parts bitumen, and.4 parts petroleum residue, together with 0.75 per cent of rubber previously softened with solvent naphtha, tar oil, anthracene resins, paraffin wax, &c. A composition for mixing with sand consists of the same tar base with 1.25-2.5 per cent of rubber and a small proportion of sulphur, and is heated to vulcanize the rubber content. Specification 216,245 is referred to.
Patent GB-1498825-A (GB)
Title: Curable anaerobic pressure sensitive adhesive composition
IPC: C08F4/40
Filed: 1975-02-19
Abstract: 1498825 Anaerobic adhesive compositions LOCTITE CORP 19 Feb 1975 [19 Feb 1974] 6977/75 Headings C3P and C3R An anaerobic pressure sensitive adhesive composition comprises (a) an anaerobic resin system, (b) a thermoplastic polymer capable of mixing with (a) and (c) a catalyst for the curing of (a) comprising a peroxy compound, an organic accelerator, and a stabilizer for (a); the adhesive composition has a static shear strength of at least 2 minutes at a 250 gram load per 0À25 square inch, and a 180 degree peel value of at least 0À5 lb. per inch. In the examples, component (a) is (i), a mixture of the reaction product of hydroxypropyl methacrylate and methylene-bis-phenyl- 4,4<SP>1</SP>-diisocyanate, with triethylene glycol dimethacrylate, itself optionally mixed with (ii), a mixture of the polymer formed by hydroxypropylmethacrylate capping of a 1 : adduct of toluene diisocyanate and hydrogenated 2,2 - bis(4<SP>1</SP> - hydroxyphenyl)propane, with hydroxypropylmethacrylate, acrylic acid and methacryloxy propyl trimethoxysilane. Component (b) is either a vinyl chloride copolymer or a polyurethane resin, while component (c) is cumene hydroperoxide containing quinone/benzoic sulphimide/methylene-bis-dimethylaniline.
Patent GB-140071-A (GB)
Title: Improvements in masts and rigging for sailing vessels
IPC: B63B15/02
Filed: 1920-03-08
Abstract: 140,071. Ljungstrom, F. March 8, 1919, [Convention date]. Rigging; masts.-Sailing vessels with a single fore-and-aft sail are provided with a mast which pivots in a fore-and-aft direction. By adjusting the inclination of the mast, the centre of pressure of the wind on the sail may be varied to prevent the boat lying more or less heavily on her rudder when sailing close to the wind. The mast 2 carrying the sail 3 is provided with a ball- and-socket joint 13 where passing through the deck 12 and also with an extension having rollers 14 running on curved bars 15. The inclination of the mast is varied by operating, either directly or from the cockpit 11, the winch 8 having drums around which the stays 4, 5 are wound in opposite directions.