baber/WOPTO huggingface dataset:
Patent GB-279764-A (GB)
Title: Improvements in or relating to partially sheathed bullets
IPC: F42B12/78
Filed: 1927-09-08
Abstract: 279,764. Berlin-Karlsruher Industrie- Werke Akt.-Ges. Nov. 20, 1026, [Convention date]. Projectiles. - The rear end of the jacket of partially-jacketted bullets is made solid as in Fig. 1, or thicker as in Fig. 2, to ensure penetration as well as deformation when fired at big game.
Patent GB-496263-A (GB)
Title: Improved mechanism for driving the blower of a supercharged internal-combustion engine
IPC: F02B33/00
Filed: 1937-05-27
Abstract: 496,263. Pumps. BRISTOL AEROPLANE CO., Ltd., FEDDEN, A. H. R., and NINNES, R. L. May 27, 1937, No. 23635/38. Divided out of 490,705, [Group XXIV]. Drawings to Specification. [Class 7 (ii)] In an arrangement in which a supercharging blower is driven through a change-speed gearing, a slipping overload clutch is arranged between the gearing and the blower. The gearing referred to is that described in Specification 490,705, and the driven element of the clutch, which is preferably of the centrifugal type, is a coaxial extension of the blower shaft.
Patent GB-809453-A (GB)
Title: Improvements in or relating to belt conveyors
Inventor: WAPLE FRANK ROLAND
IPC: B65G37/00
Filed: 1954-08-16
Abstract: 809,453. Endless conveyers. NORTH THAMES GAS BOARD. Sept. 14, 1955 [Aug. 16, 1954], No. 23789/54. Class 78 (1). Material is retained on an inclined endless belt 1 by a second endless belt 5 the edges of which are pressed into engagement with those of belt 1 by rollers 8. These rollers are mounted on arms 9 which carry pins 11 slidable and pivotable in slots 12 formed in heads 13 to which the tails of the arms 9 are adjustably secured by pins (not shown) passing through holes 16 and aligned holes in the arms. The inclination of the belt 1 increases progressively over its length from approximately 16 to 40 degrees to the horizontal.
Patent GB-774104-A (GB)
Title: Improvements in alternating current difference determining circuits
IPC: G01R19/10
Filed: 1952-09-23
Abstract: 774,104. Impedance measurement; current measurement; measuring bridges. FOSTER TRANSFORMERS, Ltd., and JENNINGS, R. E. Sept. 21, 1953 [Sept. 23, 1952], No. 23804/52. Class 37. [Also in Group XXXIX] In a circuit for determining the arithmetic difference between two anti-phase alternating currents as a measure of the impedance difference of a saturable and a linear reactor, unidirectional pulses derived from the two A.C.'s by appropriately poled half-wave rectifiers are thereby directed to flow in two different paths during half-cycles of one polarity and two other different paths during half-cycles of the other polarity; each of the two paths including a common section; one of which sections includes a current responsive element which is thus traversed by unidirectional pulses equal in magnitude to the arithmetical difference of the two A.C.'s. Fig. 1 shows a device for obtaining the arithmetic difference between the current in a saturated core reactor and that in a linear reactor, wherein the free ends of the secondary of a supply transformer 1 are respectively connected to common points of the dual equal windings of a saturated core reactor 2 and of a linear reactor 3. The free ends of corresponding windings are connected together in series with pairs of similarly poled rectifiers 4, 5 and 6, 7; whose overall polarities are oppositely directed in the two branches of the circuit, and the conductors joining the rectifier pairs are interconnected by the capacitance shunted additively connected control windings 8 of a magnetic amplifier operating indicating, recording, or control circuits (not shown) whose junction point is connected to a centre tap of the supply transformer secondary. Since the two windings of each reactor 2, 3 carry alternatively positive and negative half-cycles, the windings are unidirectionally magnetized and a unidirectional voltage is developed between the rectifier conductors representing the arithmetic difference between the currents in the windings of the two inductors, which excites the control winding to develop ampere-turns proportional to such arithmetic difference. In Fig. 2 (not shown) an indicating instrument is substituted for one half of the magnetic amplifier control winding, while the other half is substituted by a direct connection and in Fig. 3 (not shown) a capacitor is inserted in series with the linear reactor windings to equalize the rate of change of current with supply frequency in both reactors, thus reducing errors.
Patent GB-298751-A (GB)
Title: Improvements relating to telephone instruments and particularly to loud speakers
IPC: H04R11/02
Filed: 1927-09-10
Abstract: 298,751. Stevens & Co. (1914), Ltd., A., Willson, H. C. Sept. 10, 1927. Loud - speakers; magnetic instruments; diaphragms.-The reed k of the driving unit A of a sound reproducing instrument, such as a loud - speaker. is secured at one end to a magnetic distance piece q fixed to one pole of a magnet, the other end of the reed co-operating with a laminated E-shaped pole-piece l<2>, l<1>, l<3> secured to the other magnet pole, the middle limb l<1> carryingthe speech current coil s. The ends of the outer limbs l<2>, l<3> are joined by a magnetic keeper leaving an air gap between it and the middle limb l<1> in which the free end of the reed vibrates. Adjustment of the reed in the air gap is obtained by rotating a screw d<1> which engages a U - shaped springy stirrup u secured to the rear face of the reed. A rod b connects the reed to the apex of a conical diaphragm a. The permanent magnet may consist of two bar magnets placed side by side with adjacent ends of like polarity and having their middle portions bowed away from each other or of a number of superposed plate magnets in the form of flat rings magnetized with polar regions at the opposite ends of a diameter. With such an arrangement, the permanent or polarizing flux, commencing from the top of the magnets, passes down through the magnets and splits up through the limbs of the pole-piece. The majority passes through the middle limb l<1> direct into the reed k but some of the flux passes through the side limbs into the keeper r and then into the reed, the whole of the flux passing up the reed and returning through the distance piece q into the top of the magnets, On the other hand, the flux due to the current in the winding s takes a local path, passing through the central limb l<1>, dividing at the inner end into the side limbs l<2>, l<3> into the keeper r and thence across the air gap into the reed k and back into the central limb l<1>.In one form of loud-speaker (Fig. 1, not shown), the driving unit and diaphragm are enclosed in a casing made from a sheet metal pressing the unit being mounted centrally on the rear wall of the casing, whilst the periphery of the diaphragm bears against an annular damping pad of felt &c. retained in position by a turned over rim at the front of the casing. In a modified construction, Fig. 2, the unit A is secured in the centre of a framework formed as a metal pressing comprising radial arms f having their outer ends turned over to form a rim to contain a felt damping pad e against which the periphery of the diaphragm is held in light contact. A rod g allows the device to be supported either on a horizontal flat surface, such as a table, or on a wall.
Patent GB-906241-A (GB)
Title: Improvements in or relating to servo-assisted hydraulic braking systems
Inventor: BALLARD DONALD HENRY
IPC: B60T11/20
Filed: 1959-07-10
Abstract: 906,241. Fluid-pressure brake systems. CLAYTON DEWANDRE CO. Ltd. July 11, 1960 [July 10, 1959], No. 23819/59. Class 103 (1). A servo-assisted hydraulic braking system has a fluid pressure servomotor 1, a master cylinder 18, lever means 19 having operative connections with the servo-control valve 12 and with the master cylinder, and a power lever 22 to transmit output of the servomotor to the master cylinder, the piston of which has inner and outer components 28b, 28a displaceable together by the power lever whilst the inner component 28b is displaceable alone by the lever means 19. A pivot 20 carries pedal lever 19 and the lever 22 pivoted at 23 to rod 5 of power piston 4. Depression of lever 19 transmits the manual effort to the tandem type master cylinder 18 via rod 39 and allows lever 24, pivoted to lever 22, and rod 17 to be moved by spring 26 to permit valve 12 to engage seat 11 and close the atmospheric connection through piston 4 and move seat 15 from valve 12 to supply vacuum from chamber 9 and pipe 8 to the rear servochamber. Movement of piston 4 is transmitted via rod 5, lever 22, fork member 38 and sleeve 37 to primary piston 28a and via sleeve 34, plunger 36 and wall 34a to secondary piston 28b. A rubber disc 35 is extruded into the bore in wall 34a to convey " feel " to pedal 19 via plunger 36 and rod 39. The valve 12 moves to a lap position when depression of the pedal ceases and on release of the pedal, springs return the various elements to the shown position. Should vacuum supply fail, then effort applied to pedal 19 is transmitted via rod 39, plunger 36 and sleeve 34 to the secondary piston 28b only.
Patent GB-503465-A (GB)
Title: Improvements in breech-closing plugs for guns
IPC: F41A35/04
Filed: 1938-08-12
Abstract: 503,465. Ordnance. EYRAUD, H. Aug. 12, 1938, No. 23879. Convention date, Aug. 14, 1937. [Class 92 (ii)] The breech end of a gun is sealed, when not in use, by a cartridge-like plug which is caused tightly to engage the wall of the barrel, by the closing of the breech-block. The plug may operate mechanically or by means of fluid pressure. The mechanically-operated plug may comprise a cylinder 2, Fig. 1, with a rim 3 to seat on the breech face and an abutment 4 for one end of a spring 5 whose other end seats on a cylinder 11<1> provided with a head 11. Rods 9 secured to the head 11 are coupled to levers 6, 7 mounted on a pivot 8 in the cylinder 2, in such manner that on pressure being applied to the free ends of the levers 6, 7 by the closing of the breech-block on to a dome-shaped sleeve I, the rods 9 are tensioned against the resistance of the spring 5 thereby compressing yielding joint making rings 14, 13 endwise between faces on the rim 3, the head 11 and on an interposed sleeve 15, to expand the rings into sealing contact with the wall of the barrel. The rods 9 may be replaced by a cable passing through a screw-eye in the head 11 and anchored to the ends of the levers 6, 7. The fluidoperated plug has similar rings' 13, 14, Fig. 3, the head 11 being operated to compress the rings by fluid pressure generated within a chamber 20 by a piston 16 carried by the breech-block-operated dome 1, this fluid extending into an annular space 21 formed by a sleeve 22 on the head 11. In both forms, the opening of the breech allows the spring 5 to release the pressure on the rings 13, 14 so that the plug may be removed, e.g. by the usual extracting mechanism.
Patent GB-263526-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F1/08
Filed: 1925-09-25
Abstract: 263,526. Newman, Ltd., W. H., and Vale, T. H. Sept. 25, 1925. Tobacco pipes.-A hollow plug c attached to the mouthpiece extends into the base of the bowl and communicates therewith by way of one or more apertures c'. The intermediate portion d is solid and of smaller diameter than the bore of the stem e<1>, leaving an annular passage connected with the bowl and mouthpiece by passages d<2>, d<3> respectively. Reference has been directed by the Comptroller io Specification 20838/09.
Patent GB-319887-A (GB)
Title: Process of spinning artificial silk from viscose
IPC: D01F2/12
Filed: 1928-08-20
Abstract: 319,887. Hartogs, J. C. Aug. 20, 1928. Cellulose xanthates, processes for making fila.- ments from.-In the manufacture of artificial silk from viscose, finely divided sulphur is added to the xanthate solution, in an amount not exceeding 0.8 per cent, at any stage in the manufacture prior to spinning; in this way, the corroding action of the viscose on the iron parts of the apparatus is reduced. The sulphur may be added as finely divided crystalline sulphur or in the colloidal form, and in the latter event it is preferred to mix the sulphur with a protective colloid. The sulphur is preferably added before or during the ripening of the viscose, and, to facilitate the solution of the sulphur, the temperature may, be raised to 25-30‹ C., or the mixture may be agitated, ground or centrifuged. According to the examples, (1) finely divided sulphur is added to alkali cellulose, which is then xanthogenated, dissolved, and spun in the usual way, and (2) a composition comprising finely divided sulphur and a protective colloid is added to a viscose solutin, which is then spun as usual.
Patent GB-781186-A (GB)
Title: Improvements in or relating to electrical sound transmission systems
Inventor: VANDERLYN PHILIP BARNET
IPC: H04S1/00
Filed: 1954-08-18
Abstract: 781,186. Binaural systems. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Aug. 9, 1955 [Aug. 18, 1954], No. 23989/54. Class 40 (4). In a system employing two sets of related inphase signals supplied to spaced loud-speakers, the relative amplitudes of the high- and lowfrequency components are modified in order to reduce the difference in position of the apparent sound source at different frequencies. As shown, in a system of the type described in Specification 394,325, after the first summing and differencing process the difference signals are passed through a network C1, R1, R2, R3, L1 (Fig. 1) which attenuates the higher frequencies relative to the lower frequencies. Networks C2, T1, L2 (Fig. 2) and C3, T2, L3 (Fig. 1) are introduced into the sum and difference channels respectively in order to restore the original in-phase relationship between the two sets of signals.
Patent GB-1120038-A (GB)
Title: A method of and apparatus for the manufacture of candlewick fabric
Inventor: FRASER KEITH HAMILTON
IPC: D05C15/00
Filed: 1965-06-08
Abstract: 1,120,038. Tufting apparatus; pile fabrics; finishing fabrics. DOUGLAS FRASER & SONS (MANUFACTURING). 1 Sept., 1966 [8 June, 1965], No. 24134/65. Headings D1G, D1K and D1S. A double-sided candlewick fabric is made by forming a first series of rows of tufting on one side of a base fabric on a multi-needle tufting machine and then forming a second series of rows of tufting on the reverse side of the fabric, alternating between the first series of rows, on a multi-needle machine employing a presser foot 2 having ribs 3 with holes 5 for the passage of the tufting needles and channels 4 for the free passage of the first series of rows of tufts. The loops passed through the base fabric are engaged by a looper and cut. The base fabric may be muslin and the pile a heavy cotton yarn. The pile fabric may be dampened and tumble dried to shrink the base fabric about the tufts which burst to give a bloom to the finished material.
Patent GB-1103595-A (GB)
Title: Converters for chemical reactions
Inventor: MCFARLAND JOHN
IPC: B01J8/00
Filed: 1964-06-11
Abstract: 1,103,595. High pressure vessals. IMPERIAL CHEMICAL INDUSTRIES Ltd. 28 May, 1965 [11 June, 1964], No. 24271/64. Heading B1X. In the lining 3, which has a low co-efficient of thermal conductivity, of a composite reaction vessal for use at high pressure and elevated temperature are situated passages for circulating coolant, so preserving the shell 1 which is capable of withstanding pressures of at least 2 atmospheres from chemical and thermal attack by the reactants and products. The shell is of metal or prestressed reinforced concrete, and the lining of refractory concrete, or asbestos cement. The passages in the lining are preferably close to the inner wall of the shell and are tubular in shape through which metal tubes carrying the coolant pass alternatively the passages follow the shape of the lining and terminate in an internal header. The lining is joined to the shell by lugs. The coolant may be cold process gas.
Patent GB-645049-A (GB)
Title: Improvements in and relating to electric battery lamps
IPC: F21L4/00
Filed: 1948-09-17
Abstract: 645,049. Bayonet joint fastenings. WILSON, H. F., and FAIRYLITES, Ltd. Sept. 17, 1948, No. 24461. [Class 44] [Also in Group XI] In a battery lamp of the type having a tandem bayonet-joint connection between a cap 2 and a body portion 1, one of which is movable axially relative to the other for switching purposes, the locking-notch 11 in one side of the first peripheral slot 12a is arranged to underlie the other side of the said slot so that when either the cap or body is moved axially to release the pin 12 from the first locking-notch 11 such axial movement is arrested, with the two portions in a position permitting them to be turned in either direction for the purpose of closing the battery circuit or separating the cap and body by withdrawing the pin 12 from the axial part of the slot 10. In a modification, Fig. 3, the junction between the sides of the peripheral slots opposite the notches 11, 11a is parallel to the axis of the lamp, thereby providing a stop 13 for the pin 12 when the latter is moved from the " on " towards the " off " position. In a further modification, Fig. 4, (not shown), a similar stop is provided in part of the oblique side of the notch 11. Specifications 532,672, [Group XX], and 604,807, [Group XI], are referred to.
Patent GB-668572-A (GB)
Title: Improvements in or relating to calcium carbonate
IPC: C01F11/18
Filed: 1949-09-23
Abstract: Calcium carbonate hexahydrate is produced by mixing aqueous solutions containing calcium and carbonate ions respectively, e.g. 0.5-2 per cent calcium chloride and 0.5-2 per cent sodium carbonate solutions, in the presence of 10-500 parts by weight glassy sodium polyphosphate (Na2O/P2O5 molar ratio 1.12 : 1) per million parts reaction mixture, separating the precipitate, and drying.  Precipitation may be effected at from 10 DEG C. to below 30 DEG C.  The material may be dehydrated, for use as a paint or rubber filler, by contact with a hot plate or by dropping it into a hot inert liquid, such as boiling tetramethyl benzene.
Patent GB-998723-A (GB)
Title: Method for growing single thin film crystals upon amorphous substrates
IPC: C30B19/00
Filed: 1964-06-12
Abstract: A monocrystalline film is formed by depositing a film of polycrystalline material on an amorphous substrate, forming an annular molten zone in a selected single crystal of desired orientation by means of an electron gun beam, and increasing the diameter of the annular molten zone so that the whole film is recrystallized outwards from the selected single crystal as seed. The substrate may be silicon monoxide or dioxide.  The crystalline material may be silicon, germanium, gallium phosphide, or indium antimonide.  Coating may be by condensation, disproportionation reaction, or hydrogen reduction.  The selected crystal may have an orientation of 1 : 1 : 1.
Patent GB-518518-A (GB)
Title: Improvements in or relating to induction pipes for v-type internal combustion engines
IPC: F02M1/00
Filed: 1938-08-20
Abstract: 518,518. Induction manifolds. AUTO UNIONAKT.-GES. Aug. 20, 1938, No. 24598. Convention date, Aug. 20, 1937. [Class 7 (ii)] Each bank of cylinders 1, 2 in a V-type engine has a separate induction manifold 8 or 9 which is spaced above and to the side of an exhaust manifold 6 'common to both banks. Each induction manifold is connected at its middle to a carburetter and is surrounded by a casing 10 into which exhaust gases can be admitted to heat the manifolds. The carburetters are arranged at the sides of the induction manifolds and preferably the carburetter of one bank is connected to .the manifold of the other bank by passages in the casing 10. The carburetters may be protected from the heat of the exhaust manifold by a sheet-metal screen.
Patent GB-200735-A (GB)
Title: Improvements in finger rings for handling paper sheets
IPC: B42D9/04
Filed: 1922-09-11
Abstract: 200,735. Givens, M. A. Sept. 11, 1922. Finder stalls.-An appliance for dealing cards &c. and worn by the operator consists of a finger or thumb ring or band 10 having an enlarged plate 12, one end of which is elongated and tapered, the parts 12, 15 being cupped to fit the ball of the thumb. The upper end is transversely slotted at 16 to receive part of a rubber band 20, the exposed part of which, in use, engages the leaf.
Patent GB-158026-A (GB)
Title: Improvements in window fasteners
IPC: E05F11/00
Filed: 1919-10-08
Abstract: 158,026. White, C. H., and Bevan, J. Oct. 8, 1919. Clamps, eccentric; turn - bolt window fastenings. - A fastener for sliding windows is set in the casing 4 secured to the sash by screws 5, and comprises an eccentric disc 6 with a projection 13 furnished with a gripping - edge 7, the projections being adapted to fit into a recess 14. The retaining-spring 12 holds the disc in the inoperative position when the projection 13 trips over the bend 20, the catch being released by means of a handle 8. When the projection is not engaged by the spring, the downward movement of the window causes the serrated edge 7 of the projection 13 to grip the face 10 of the frame 11 and hold the window open. Upward movement of the sash releases the catch. The recesses 14 are provided to hold the window more firmly in the totally open or totally closed position. A serrated metal strip may be provided on the face 10 of the frame 11, to engage with the serrated edge 7 of the projection 13.
Patent GB-799019-A (GB)
Title: Improvements relating to toilet articles such as combs hinged in covers or cases
IPC: A45D24/08
Filed: 1955-08-27
Abstract: 799,019. Combs; handles. JARRETT, RAINSFORD & LAUGHTON, Ltd., and LAUGHTON, G. A. Aug. 17, 1956 [Aug. 27, 1955], No. 24677/55. Classes 30 and 131 A toilet article such as a comb 1 is hinged at 3 to one end of a sheath-like cover 2, which forms a handle when the comb &c. is ejected for use, the comb being moved partly out of the cover by a trip-bar 10 pivoted at 8 and actuated by movement of a part of the bar which projects from the cover. The trip-bar is part of a bell crank lever and has a latch part 12 formed with an upturned tip 13 projecting from the cover for engagement by the finger to raise the trip-bar to an extent limited by a stop 15 and partially eject the comb. In modifications the bell crank lever has finger-piece projecting through a slot in the cover or the trip device has a snap action fully ejecting the comb.
Patent GB-202533-A (GB)
Title: A device for turning pancakes or for like uses
IPC: A21B3/00
Filed: 1922-09-12
Abstract: 202,533. Scruton, F. M. Sept. 12, 1922. Fish and egg slices and the like.-A device for turning pancakes or lifting food during cooking comprises a blade 5 of interlaced wire mesh having the intersections " metallized," e.g. by dipping the blade in molten metal, and a handle 7 with a looped portion 9 interlaced with the meshes of the blade.
Patent GB-850244-A (GB)
Title: Improvements in and relating to the storage of chlorine
IPC: F17C3/02
Filed: 1958-08-01
Abstract: 850,244. Storing liquefied gases. COLUMBIASOUTHERN CHEMICAL CORPORATION. Aug. 1, 1958 [Aug. 5, 1957], No. 24783/58. Class 8(2). Liquid chlorine is stored at atmospheric pressure in a double-walled spherical insulated container 8 having a central downwardly directed liquid inlet duct 9, one or more vertical liquid withdrawal ducts 33 extending from near the base of the inner vessel 21 and through the insulation 25 at the top and one or more vapour discharge ducts 37, 40 also extending through said insulation layer 25. The latter comprises perlite whilst the space between the lower portion of vessels 21, 20 is charged with glass blocks 26 and fibre glass 27. The container 8 is supported on columns 22 surrounded by a cement basin 46. Dry air is admitted to the insulation space through a manhole 48. Liquid withdrawal is effected by fan blades not shown carried by the base of shafts 31 rotated by motors 12 and the withdrawn liquid chlorine is vapourized in a heat exchanger 36.