baber/WOPTO huggingface dataset:
Patent GB-751039-A (GB)
Title: Improvements in reciprocating electric motor pumps
IPC: B60S5/04
Filed: 1954-04-07
Abstract: 751,039. Reciprocating compressors. GUTSCHERA, G. April 7, 1954, No. 10232/54. Class 8(1). A compressor comprises two double acting pistons 6, 7 in cylinders 3, 2 and connected by a rod 5 which forms the core of a solenoid 4 fed with A.C. or through a rectifier 14 or directly with D.C. in which cases a reversing switch 15 is incorporated. The cylinders discharge into a chamber 12 which has a hose 13 for connecting to a pneumatic tyre.
Patent GB-379766-A (GB)
Title: Improvements in or relating to hermetic or vacuum closures for jars, bottles, cans, or the like
IPC: B65D41/04
Filed: 1931-04-08
Abstract: 379,766. Jar &c. closures. CROWLEY, J. F. and VACSEAL CONTAINERS, Ltd., Westminster House, Great George Street, London. April 8, 1931, No. 10307. [Class 125 (iii).] A jar &c. closure, sealable by vacuumizing, consists of a cover 10, formed with pips 9 which ride in vertical recesses 8, a horizontal flange 11 on the cover compressing a packing ring 4, formed with a pull-tab 5, against a horizontal flange 3 on the container body. The vertical recesses 8 merge into a single groove 6 which partially houses the packing ring 4. On breaking the seal by pulling the tab 5, the cover may be used as a vessel closure. In modifications, the recesses 8 may merge into short horizontal depressions only, or the co-acting elements on the cover and container body may be formed as interrupted threads. Specification 404/85, [Class 125, Stoppering &c], is referred to.
Patent GB-493604-A (GB)
Title: Improvements in drain or like pipes or sockets
IPC: F16L3/00
Filed: 1938-04-05
Abstract: 493,604. Supporting pipes. TAYLOR, J. April 5, 1938, No. 10346. [Class 99 (ii)] A rain pipe socket has ears with' rear faces in a plane outside the external surface of the pipe, the roots 2 of the ears being connected by a web 3 extending from the pipe. The ears are recessed at 4 and 5.
Patent GB-1197556-A (GB)
Title: Improvements in or relating to Cathode-Ray Tubes
Inventor: PAPPADIS NICHOLAS P
IPC: H01J29/50
Filed: 1969-02-26
Abstract: 1,197,556. Cathode - ray display tubes. ZENITH RADIO CORP. 26 Feb., 1969 [10 May, 1968], No. 1037]/69. Heading H1D. The edges of coaxial cylindrical electrodes forming an electrostatic lens are shaped to screen the lens from the effect of changes accumulating on the envelope of a cathode ray tube. Fig. 1 shows a colour television tube of the shadow mask-type using three electron guns each of which includes a lens system G3, G4, G5; the edges of the outer electrodes G3 and G5 are curved back at 31 and the edges of the centre electrodes G4 are curved in concentric arcs 30. The spacing between the electrodes should be small compared with the radial length of the flanges 30. When a blue lateral connection magnet is provided, the G3 electrodes of the red and green guns should preferably be of material of high permeability to protect these beams from the influence of the magnet; the G4 electrodes should also be of high permeability material to shield the lenses from stray magnetic fields.
Patent GB-1253912-A (GB)
Title: Reactivity and power distribution control of a nuclear reactor core
Inventor: FISCHER DAVID LLOYD
IPC: G21C7/04
Filed: 1969-02-26
Abstract: 1,253,912. Controlling reactors. GENERAL ELECTRIC CO. 26 Feb., 1969 [26 Feb., 1968], No. 10385/69. Heading G6C. In order to provide an arrangement of burnable poison in a nuclear reactor core which will provide a substantially stationary power distribution in the core throughout the operating cycle, the reactor core is zoned to provide a step-function approximation to the ideal poison distribution. The density of the burnable poison is sufficient to provide effective self-shielding. The burnable poison is formed in a geometrical configuration such that as it is depleted with exposure, the surface area of the poison and hence the reactivity controlled by the poison decreases in a manner to match the decrease in reactivity of the nuclear fuel with exposure. The initial amount of the surface area of the burnable poison in each zone is selected to compensate for the initial excess reactivity to be controlled in the zone. The initial number of atoms of the burnable poison in each zone is selected to provide substantially complete burn up at the exposure to be experienced in the zone during the operating cycle. In the embodiment described, the core is formed of a plurality of fuel assemblies, each comprising a tubular flow channel containing an array of fuel elements supported between upper and lower tie plates. The burnable poison may be formed in separate rods or elements, cylinders of the poison material may be placed within annular fuel pallets or rods, rod-shaped particles of poison material may be dispersed in the fuel, or the poison material may be molecularly dispersed in the fuel. Suitable poison materials include B, Sm and Gd. In an example, 0À95 to 1À55 wt. per cent Gd 2 O 3  was mixed with UO 2  to form a solid solution and then prepared as pellets for loading into the fuel elements. The required distribution of burnable poison was obtained using pellets of only three different poison densities. The burnable poison was formed in a cylindrical configuration to provide a linear decrease in control strength which matches the typical linear decrease in reactivity of the fuel in large power reactors. Other configurations may be used, however, such as self-shielding burnable poison in a spherical configuration which provides reactivity control decreasing more rapidly with exposure during the early part of the fuel cycle than during the later part, and a relatively thin strip or slab of self-shielding burnable poison which provides reactivity control substantially constant with exposure with a rapid drop in control worth occurring as complete burn up of the poison is approached.
Patent GB-117495-A (GB)
Title: Improvements in the Construction of Internal Combustion Engines.
Inventor: JAMES THOMAS SPENCER
IPC: F02B75/04
Filed: 1917-07-19
Abstract: 117,495. James, T. S., Parry, E. H., and Wilson, T. H. July 19, 1917. Driving-gear.-To increase the length of the expansion, suction, and exhaust strokes in a fourstroke-cycle engine, the crank pin is inclined and carries a pin n which slides in a cross-over cam groove o in the end of the connecting-rod. To permit the big end of the connecting-rod to slide along the crank-pin, the small end turns about a pin mounted at right-angles to the gudgeon.
Patent GB-160675-A (GB)
Title: Improvements in firegrates for steam boilers
IPC: F23H3/02
Filed: 1920-04-14
Abstract: 160,675. Cannilla, F. P. E. April 14, 1920. Tubes, water; water-circulation tubes in waterspace.-A water-circulating grate is connected by pipes e with the water space of a boiler and has outlet pipes f delivering just above the water line. Cocks e<1>, f<1> controlling the flow are actuated by rods passing through stuffing-boxes h in the sides of the boiler.
Patent GB-1477772-A (GB)
Title: Process and apparatus for the production or erasure of defor mation images
IPC: G03G5/022
Filed: 1975-03-13
Abstract: 1477772 Surface-deformation imaging HOECHST AG 13 March 1975 [16 March 1974] 10502/75 Heading G2H  Surface-deformation imaging member 1 incorporates a thermoplastics layer preferably with photo-conductive material in it, and is provided with an electrostatic image either electro-photographically or by imagewise deposition of charge before being heat-developed by radiant heat while its central longitudinal strip is out of contact with any support and its edges are supported. Preferably the member 1 receives a line hologram image from laser beams 5, and is wound about grooved drum 2 during heating, so that the imaged portion overlies groove 3 and does not pass heat to any support. The developed image can be erased by redevelopment without application of an electrostatic image. Several line holograms can be made side by side on the member 1, each overlying a groove 3 during development.
Patent GB-372066-A (GB)
Title: Improvements in telephone systems
IPC: H04Q1/446
Filed: 1931-04-09
Abstract: 372,066. Automatic exchange systems. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, LUNDELL, T. A. and LAURENT, T., 8, Karlsviksgatan, both in Stockholm. April 9, 1931, No. 10530. [Class 40 (iv).] In a voice-frequency signalling system, the means that guards against the operation of the signal - responsive device by speech currents is rendered inoperative during dialling. In the application of the invention to a system of the kind described in Specification 283,135, [Class 40 (iv), Telephones &c.], in which signal currents alone with the help of parallel and series tuned circuits 17, 18 pass only through transformers 11 causing a discharge in the neon tube 19 and a consequent increase in current through valve 8 to operate relay 5, whereas speech currents pass mainly through transformer 12 breaking down the tube 20 and disabling valve 8, a relay 30 operated by the selector sequence switch disconnects 17 and shunts 18 to enable the circuit to respond rapidly to selecting impulses. At the conclusion of the selecting operation, the sequence switch releases 30 to restore the original conditions. The Specification as open to inspection under Sect. 91 (3) (a) comprises also systems in which a tuned rectifier 4, Figs. 1 (Cancelled) and 2 (Cancelled), is normally connected to a sluggish relay 40 or a relay 42 in a sluggish condition. When a signal is received having a sufficient duration to operate the relay, the selector is prepared and sends back a signal to operate 41 which replaces 40 by a quick acting relay 5, or 44 which renders 42 quick acting. This subject-matter does not appear in the Specification as accepted.
Patent GB-781467-A (GB)
Title: Method of improving the bonding properties of solid polyethylene plastic materials
Inventor: BRUCE CHARLES RICHARD
IPC: C08J7/043
Filed: 1954-04-09
Abstract: Solid polyethylene plastic material, e.g. films, sheets, and bottles, has a surface coating, which is receptive to printing inks and to adhesives, consisting of a naturally occurring resin having an acid value of not more than 50 and a saponification value of not more than 60, or mixtures of such resins with or without a known plasticiser therefor.  Suitable resins are gum dammar, East India gum, Batu resin, and gum elemi, and the resins may be used in the "dewaxed" form obtained as the soluble fraction in ethyl alcohol extraction of the gum, or in the "wax" form insoluble in the alcohol extraction. The resin is dissolved in a volatile organic solvent or solvent mixture, e.g. aromatic, aliphatic, or chlorinated hydrocarbons such as benzene, toluene, petroleum spirit, or trichlorethylene, in amount 0.2-30 per cent solids.  The coating solution at 0-80 DEG C. is applied by spray or dip coating to one or both sides of a film to provide, on evaporation of the solvent by heat, a coating 0.0002-0.000002 inch thick.  Where the film is to be printed the resin coating may be applied on the first colour station of a multi-colour printing-machine, e.g. a gravure printingmachine applying "Winstone AE1576 blue" printing ink.  The polyethylene plastic may be commercial polyethylene of mol. wt. 18,500, or a plastic compound comprising polyethylene with a plasticiser, e.g. raw or hydrogenated rubber, or polyisobutylene, and may include known pigments, slip agents, or anti-oxidants.  The coated polyethylene is suitable for lamination to other films, e.g. regenerated cellulose films of plain or moistureproof types, at elevated temperature and pressure.  Specifications 645,914 and 645,971, [both in Group VIII], are referred to.
Patent GB-106628-A (GB)
IPC: H02K21/32
Abstract: 106,628. Simpson, C. C. W., and Le Noir, R. G. March 18, 1916. Brush-holders; magneto-electric machines.-In a magneto in which the armature shaft and the distributor shaft are arranged parallel to each other and are geared together at one end and carry at the other end the collector and distributor, the circuit-breaker 56, 57, Fig. 13, is carried by an angularly adjustable ring 53 surrounding the axis 16 of the armature 14 and operated by a part 6) carried by, and rotatable with, the armature. The ring 53 is connected to the frame of the magneto by a bayonet-joint and can be angularly adjusted by a handle 63 connected to a block 64 engaging the ring 53. The contact 57 is secured to a bracket 61 carrying a brush engaging the contact ring 29, which is connected to the primary winding of the magneto armature. The distributor 45 is in the form of a contact drum and is readily removable from the distributor shaft 24. The distributor contacts are formed in one piece 35, around which the insulation is moulded or otherwise formed so as to leave a continuous ring 37 and contacts 38, Fig. 7. The part 35 is mounted on a tube 39 of insulating-material held between plates 40, 41 on a metal tube 42. The drum is secured to the distributor shaft by a screw 45. A single bracket carries and electrically conr.ects the brush bearing on the distributor ring 37 and the brush bearing on the collecting-ring 28, which is connected to the secondary winding of the magneto armature. The cover for the magneto is formed with a terminal block 46, Fig. 8, carrying terminal nuts 47, which are provided with springs adapted to make contact with the brush-holders 50 of the distributor when the cover is in position. The brush-holders consist of screwthreaded plugs 67 in which the brushes 68 slide. A rod 70 carried by the brush indicates the wear of the brush. Oil is supplied to the bearings from a cup 72, from which ducts 73 lead to the bearings. The condenser is carried on the extension 75 of the base.
Patent GB-106699-A (GB)
IPC: B63G7/04
Abstract: 106,699. Callin, W. H. June 22, 1916. Destroying mines.-A ship is protected from anchored mines by means of a V-shaped arrangement of wires P, W held clear of the hull below the keel by a portable boom B at the fore end, the after ends being usually spread apart by paravanes DP which are inclined so that they tend always to travel away from the ship and downwards when going full speed. The boom B can only be shipped or unshipped when in a vertical position, an universal fitting J rendering it selflocking in any other position. The joint comprises a plate socket J<1> with an inner rotatable piece CP slotted to receive a pin P' forming one part of the hinge H, the other leaf being attached to the boom. Upward movement of the boom is prevented by a stopper S and downward movement by a stay TL. Cutters C may be fitted for severing the mooring chains.
Patent GB-720899-A (GB)
IPC: H01C3/10
Filed: 1953-04-20
Abstract: 720,899. Resistor grids. GENERAL MOTORS CORPORATION. April 20, 1953 [May 1, 1952], No. 10681/53. Class 37. A heavy-current resistor grid, Figs. 1 and 2, comprises a metal band resistance element 4 in serpentine form mounted between a pair of insulator supports 2 by means of metal brackets 8 having oppositely directed fingers or projections 10, Fig. 4, forming a cradle-like support for a bend 6 of the band resistance element 4. The two end fingers 12 prevent the band 4 from moving transversely. The brackets 8 may be secured in the insulator supports 2 by integral sheet portions 14 engaging into arcuate slots 16, Fig. 3. In a modification, Figs. 5 to 7 (not shown), the brackets are secured in the supports 2 by twisted uprights retained in holes by unreleased twist. In use, e.g. in electric traction systems, cooling air contacts the bends of the band elements so that hot spots do not occur at these points.
Patent GB-590688-A (GB)
Title: Improvements in or relating to piezoelectric devices
IPC: H04R17/00
Filed: 1944-06-02
Abstract: 590,688. Piezo electric crystals. BRUSH DEVELOPMENT CO. June 2, 1944, No. 10689. Convention date, Jan. 18, 1943. [Class 40 (v)] A piezo-etectric unit comprises a flexible plate of piezo-electric matter and a, flexible restraining plate disposed face to face, but spaced apart for the major part of their length and. connected together at their ends. In Fig. 1, a compound bender element is formed by removing the centre of a crystal slab 1 so as to constitute the plates joined by integral end parts 5. Electrodes 3 are applied to both surfaces of both plates. When the inner electrodes are connected to one pole of a source of potential and the outer electrodes are connected to the other pole, one plate extends while the other contracts, thus producing bending. The plate described is of Rochelle salt, cut in a plane perpendicular to the X-axis and with the length at 45 degrees to the Y- and Z-axes. Other materials may be used such as beryllium sulphate and oxide, primary ammonium phosphate and the alkali phosphates and arsenates, tourmaline, &c. Fig. 2 shows a modification comprising two plates 7 cemented together at thickened end parts 9. In Fig. 4, a bender element comprises two simple plates 11 cemented into grooves in a member 13 and to a spacer 15. One or more spacers 17 prevent buckling of the plates. If end 15 is clamped, end 13 executes a transverse movement. Fig. 6 shows a bender comprising a simple plate 21 cemented into end ridges 9 of a plate 7. Various slight modifications designed to reduce the shear stress on the cement are described (Figs. 7-10, not shown). Fig. 11 shows a compound twister element in which the plates are cut with edges parallel to the Y- and Z-axes, the upper plate 27 being cemented at the raised corners 25 only of the lower plate 23. A number of modifications are described of plates which are formed for inter-locking engagement at the corners to make twister elements (Figs. 14-20, not shown). The restraining plate may comprise a sheet of non- piezo-electric material, for example berylliumcopper. Specifications 318,934, [Class 40 (v)], 454,595 and U.S.A. Specifications 1,438,974 and Re-issue 20,213 are referred to.
Patent GB-774096-A (GB)
Title: Improvements relating to embossing
Inventor: EWING HENRY
IPC: D06Q1/08
Filed: 1954-04-12
Abstract: Fabrics consisting wholly or in part of cellulose esters, e.g cellulose acetate, or of vinyl compounds or polyethylene terephthalate are impregnated, before being embossed, with a softening liquid such as water, an aqueous solution of an alcohol, a dilute aqueous solution of a solvent, an ester or ether of a glycol, especially diethylene glycol acetate, benzene, toluene or a chlorinated aliphatic hydrocarbon.  To the softening liquid a resinous condensation product of formaldehyde with urea or a urea derivative or melamine may be added.  A modified protein size or a size based on methyl cellulose, sodium carboxymethyl cellulose, polyvinyl alcohol or the sodium and ammonium salts of styrene-maleic acid copolymers may also be added.
Patent GB-493924-A (GB)
Title: Improvements in shock absorbers for vehicles
IPC: B62K25/24
Filed: 1937-04-16
Abstract: 493,924. Frictional shock-absorbers; spring-forks for cycles. DEANE, H. H. B. April 16, 1937, Nos. 10846 and 32994. [Class 108 (iii)] [Also in Group XXXI] A shock-absorber or suspension means for vehicles comprises two relatively movable members 16, 23, Fig. 4, which when moved compress the spring of a plunger 31 having a tapered end which moves in a concave track and may be offset from the axis so as to make line contact with the surface of the track. As shown in Figs. 1, 4 a link 32 is pivoted at 18 to a housing 16 on the front forks 14, 15 of a cycle and to the steering column 11 at 9. The housing 16 contains spring plungers 31, the spring action of which may be adjustable laterally or from the handle-bars by a screw 26 operated by a movable waisted plug 23 acting on spring follower plugs 25. The conical ends of the plungers engage in V -shaped recesses in a plate 35 integral or removable with the link 32. Relative movement between the links 32 and housing 16 depress the plungers 31 and increase the resistance to movement. As applied to a shock-absorber for a vehicle the housing 58 is in the form of a spool rotatable by a lever 73 fixed to the hub spindle 59. Holes 60 in the spool contain opposed plungers 62 forced into cam grooves 69 in the casing 71, 72 by a spring 61. The base 72 of the casing may be attached to a lever arm. The plungers are lubricated through duct 65. The inclination of the cam groove on each side of the mid-position of the plunger may be different to vary the resistance between recoil and rebound. The first Provisional Specification states that when two springs act on a plunger one may be shorter than the other so that the resistance to movement is proportional to the displacement of the plate from normal position and that the plate member may have a rectilinear or other sliding movement across the plungers. The plunger may be replaced by a ball or roller mounted on a ring of balls and pin respectively.
Patent GB-1043238-A (GB)
Title: Improvements in or relating to digital read-out systems
Inventor: HOLIDAY ARTHUR
Filed: 1962-03-21
Abstract: 1,043,238. Electric selective signalling. GENERAL PRECISION SYSTEMS Ltd. March 20, 1963 [March 21, 1962], No. 10872/62. Heading G4H. A movable member (e.g. a disc) bears a single track of chain-code bit representations which are sensed by detectors spaced along the track, at least one of the spaces between consecutive detectors being a multiple of the spacing between consecutive bit representations, and the coded characters delivered by the detectors having bit parity. The non- uniform spacing of the detectors enables the number of different characters possible to exceed the number of detectors despite the parity requirement.
Patent GB-789359-A (GB)
Title: Improvements in or relating to grinding mills
IPC: B02C7/14
Filed: 1956-04-10
Abstract: 789,359. Disc mills. EDWARDS G. W. and SEVIN R. April 10. 1956 [April 20, 1955], No. 10908/56. Class 59  A grinding mill incorporating co-operating grinding discs at least one of which is rotatable and one of which is adjustable relatively to the other to vary the gap therebetween in which the adjustable disc is movable axially by screwthread means designed to allow a predetermined amount of axial play to permit a limited relative outward movement of the discs under the reactive pressure exerted by the substance being ground, means being provided for applying a hydraulic or pneumatic pressure to the adjustable disc in opposition to said reactive pressure to maintain a constant predetermined grinding pressure between the discs. The mill shown comprises grinding discs 7, 11, the disc 7 being mounted on a shaft 1 supported in a sleeve 2 which is adjustable axially relative to a fixed casing 3 by means of a hand wheel 4 provided with differential screw threads one of which is such as to allow a limited amount of play between the sleeve 2 and the casing 3 under the pressure exerted by the material being ground. A counter pressure is applied to the shaft 1 by means of a piston 19 slidable in a cylinder 20 to which oil or water from a reservoir 24 is fed by means of a pump 23. The pressure in the cylinder 20 is indicated by a gauge 22, and a valve 25 provided with a spring adjustable by a handle 26 is arranged in a by-pass line between the discharge side of the pump 23 and the reservoir 24. The movements of the sleeve 2 relative to the casing 3 in the axial direction are braked by means of a stepped screw 28 which bears against a brake shoe 30 in turn bearing against the sleeve 2. The screw 28 penetrates into a slot 29 in the sleeve 2 to prevent the latter from rotating relative to the casing 3. In operation, the discs 7, 11 are moved apart by means of the hand wheel 4, the pump started and the handle 26 adjusted to give the desired pressure as indicated by the gauge 22. The disc 7 is then advanced by means of the hand wheel 4 until the discs 7, 11 only just contact one another. At this moment, the reaction of the pressure in the cylinder 20 is entirely taken up by the screw threads on the hand wheel 4. The material to be ground is then drawn from a hopper 13 by means of vanes 9a on a nut 9 and forced between the discs 7, 11 where it exerts pressure against the disc 7. This pressure can be balanced by operating the handle 26. When the pressure is balanced the reaction on the screw threads of the hand wheel 4 is relieved and the hand wheel can be operated freely.