baber/WOPTO huggingface dataset:
Patent GB-160883-A (GB)
Title: Improvements in and relating to rope and cable grips and clips
IPC: B61B12/12
Filed: 1919-11-27
Abstract: 160,883. Hallmark, H. Nov. 27, 1919. Rope grips. - Comprises means for locking a weight-actuated rope grip in the " applied " position, such means being applied by a spring and put out of action by a fixed rail at the loading point. The grip G is applied on the hauling rope by the weight of the load acting through a sleeve C which rests on the grip - operating lever. When the grip is thus applied a hinged plate A acted upon by a spring S engages above the top of the sleeve and prevents the latter from rising and releasing the grip, until the plate A is raised by a projection E thereon striking a fixed rail. Specification 117,590 is referred to.
Patent GB-244579-A (GB)
Title: Improvements relating to the classification of furnace ash, gas retort ash, household refuse, or the like, and apparatus therefor
IPC: B03B9/04
Filed: 1924-12-09
Abstract: 244,579. Hadfield, G. H. Dec. 9, 1924. Upuard-current classifiers; washing-plant, arrangement of.-Apparatus for classifying furnace ash, houshold refuse, &c. by means of water or other fluid comprises a separating vessel 1 into which liquid is continuously delivered by a pump 5, a rotating screen 7 to receive the lighter constituents which are carried over with the overflow from the vessel, a valve 11 for discharging the heavier constituents from the vessel 1, and a sump 4 to receive the liquid which drains through the screen 7 and is caught by the trough 8. The vessel 1 is preferably conical and provided with an inner jacket 10 extending above the level of the lip 6 and some way down and around the sides. Liquid is delivered by the pump into the space formed by this jacket and rises in an upward current in the main part of the vessel. The heavy constituents passing out of the bottom of the cone through the star valve 11 are received on a screen 12, which is preferably an elevator with perforations to allow the liquid to drain away. A trough 13 is provided to conduct the liquid back to the sump 4, and the heavy constituents are delivered by the elevator 12 into a container. An alternative form of valve for the discharge of the heavy constituents from the vessel 1 comprises cones 15, 16, Fig. 4, secured to a movable rod 17.
Patent GB-159331-A (GB)
Title: Improvements in or relating to knives
IPC: B26B27/00
Filed: 1919-11-28
Abstract: 159,331. Mitchell, A. T. Nov. 28, 1919. String-cutters; folding knives. - In a knife, for cutting the ties or bindings of sacks, in which the blade is provided with a blunt guard or thickened point, the blade b is rigidly connected in a hook-like manner to, and is directed towards, a stem or handle portion d. The bulb or guard c is formed integrally on the blade or on a separate member d<1> to which the blade is attached. The blade may be removably connected to the handle. According to the Provisional Specification, the knife portion may be pivotally connected to the stem or handle portion. Reference has been directed by the Comptroller to Specification 2206/06.
Patent GB-801693-A (GB)
Title: Improved writing instrument and ink therefor
IPC: B43K7/035
Filed: 1955-10-18
Abstract: 801,693. Reservoir pens. SCRIPTO, Inc. Oct. 18, 1955 [April 4, 1955], No. 29751/55 Class 146(3) A ball-point pen comprises a reservoir having a supply of plastic thixotropic ink, and a supply of gaseous-liquid propellant superimposed on the ink but physically separated therefrom, the propellant being adapted to force the ink to the ball point and to maintain substantially constant pressure as the volume of ink supply diminishes in use. As shown in Fig. 2, a gaseousliquid mixture 22 in the reservoir 19 of a ballpoint pen is separated from the ink by a ram 23, and from the atmosphere by a gas-tight plug 21. The gas exerts a substantially constant pressure on the ram 23, and this pressure is maintained until the ink is consumed, since a temporary fall in pressure above the ram causes some of the liquid to evaporate. The ink used in the pen comprises a pigment such as carbon black, lamp black, or organic colours mixed into a vehicle such as a polyester resin or a polymeric type plasticizer. In a typical example there are 20 parts pigment to 80 parts vehicle, by weight. The ink is plastic and thixotropic, does not begin to flow until subjected to force, has a high apparent viscosity in the static state, and a lower viscosity when subjected to the shear action of the writing ball. Ink compositions, such as the liquid " leads," described in Specification 800,036 may be used. The gaseous-liquid mixture 22 may be -dichlorotetrafluoroethane. The apparatus for introducing the mixture 22 into the reservoir 19 comprises a pressurized container for the mixture, the latter being vaporized when allowed to flow through a valve and flexible tubing. The gas is changed to liquid when it flows through coils which are cooled by a freezing mixture. The liquid is allowed to flow into the reservoir 19 of the pen which is then sealed by the plug 21. As the liquid approaches normal temperature, some of it evaporates and the gas exerts an initial pressure on the ram 23. The volumes of mixture 22 and ink are initially in the ratio of about 1 to 6. The boiling point of the liquid must be less than the minimum temperature at which the pen is to be used. The solid ram 23 may be replaced by a flexible cup-shaped member. In the form shown in Fig. 6, a thin-walled sac forms the ink reservoir, the liquid-gaseous mixture 22 exerting a continuous pressure on the wall of the sac which gradually collapses as the ink is consumed. The thickness of the sac wall may be uniform or, as shown, may be least thick at the rear end 31 and gradually thicker towards the writing end of the pen. Reference has been directed by the Comptroller to Specification 723,425.
Patent GB-233268-A (GB)
Title: A process and device for use in the after treatment of spools of artificial silk, horsehair, twine and the like
IPC: D01D10/04
Filed: 1924-12-11
Abstract: 233,268. Kõmpf, A. July 3, 1924, [Convention date]. Spraying stationary materials with liquids'. - Rings c of resilient material are fitted over the ends of the spools b of artificial silk, horsehair, twine &c., to prevent displacement of the mate-- rial during the usual washing operation.
Patent GB-1192821-A (GB)
Title: Improvements in and relating to Actuators for example for Punch Card Apparatus
IPC: H02K33/00
Filed: 1967-06-28
Abstract: 1,192,821. Selective printing. HONEYWELL Inc. 28 June, 1967 [14 July, 1966], No. 29948/67. Heading B6F. [Also in Division B4] A selective actuating device illustrated as applicable to a card punch unit but which may also be employed in other systems, e.g. high speed computer printing apparatus, comprises a combined interposer-actuator unit A and a pair of multi-punch magnetic selection arrays ML, MR, the unit A including a pair of multipunch interposer assemblies each comprising a multi-fingered interposer flexure sheet 30 (or 30<SP>1</SP>) each finger 3 (or 3<SP>1</SP>) of which being arranged to be selectively positioned to drive an associated one of punches P1 to P12 (or P<SP>1</SP>1 to P<SP>1</SP>12) the sheet 30 (or 30<SP>1</SP>) being secured, together with flexed guide sheets 1, 5 (or 1<SP>1</SP>, 5<SP>1</SP>), cantilever fashion to a bail frame H, the fingers 3 (or 3<SP>1</SP>) normally resting in contact with the sheet 1 (or 1<SP>1</SP>) unless selected when they are biased into contact with the sheet 5 (or 5<SP>1</SP>) and operate to drive corresponding punches when the bail frame is reciprocated. The arrangement is a modification of that described in Specification 1,127,328. The arrays ML, MR each comprise permanent magnet polepieces 27-1 &c. and 29-1 &c. which are provided with solenoid windings 27-31 &c. and 29-31 &c., the arrangement being such that the polepieces pull the fingers 3 (or 3<SP>1</SP>) into contact with the sheet 1 (or 1<SP>1</SP>) and when selected windings re-energized the pull of the corresponding polepieces is overcome and the corresponding fingers are biased into contact with the sheet 5 (or 5<SP>1</SP>). The arrays ML, MR are provided with adjustable flux shunts 25, 25<SP>1</SP>. The bail frame has integral therewith a stripper assembly ST provided with head portions Sh and slots SC-1 to SC-12 for returning the selected punches to their inoperative positions. The guide sheet 5 (or 5<SP>1</SP>) has clearance cut-outs C-1, C-2 &c. Both sheets 1, 5 (or 1<SP>1</SP>, 5<SP>1</SP>) have a dimpled formation. A spacer 13 (or 131) separates sheet 1 (or 1<SP>1</SP>) from sheet 30 (or 30<SP>1</SP>) and the sheets 1, 30, 5 (or 1<SP>1</SP>, 30<SP>1</SP>, 51) are clamped together between a pair of clamps 7, 15 (or 7<SP>1</SP>, 15<SP>1</SP>). The sheet 30 (or 30<SP>1</SP>) is of magnetizable material and the sheets 1, 5 (or 1<SP>1</SP>, 5<SP>1</SP>) of non-magnetizable material. The heads of the punches and the lower ends of the flexure fingers are made of non-magnetic material of high durability. The sheet 30 (or 30<SP>1</SP>) may be laminated. Unselected punches are retained in the inoperative position by means of springs SP-1 &c. (or SP<SP>1</SP>-1 &c.) the free ends of which engage slots PS in the punches. Each punch has secured thereto a magnet MG-1 &c. (or MG<SP>1</SP>-1 &c.) which when a selected punch is sensed by a detector (PCM-1 &c.) (or PCM-1<SP>1</SP> &c.), Fig. 5 (not shown), to verify that the selected punch has punched a record card.
Patent GB-276540-A (GB)
Title: Improvements in valve distribution gear for fluid pressure engines
IPC: F01L15/00
Filed: 1926-11-27
Abstract: 276,540. Reid, J., Reid, J. J., and Oliver, R. Nov. 27, 1926. Valves &c., indicating apparatus for.-The end of the shaft of an internal-combustion engine is provided with a contact 24 which engages contacts 25 - - 28 to control lamps on the dashboard to indicate the positions of the pistons.
Patent GB-1187378-A (GB)
Title: Improvements in Methods of Generating a Curve, Applicable to Tracing Machines or Machine Tools
IPC: G06K15/22
Filed: 1967-06-29
Abstract: 1,187,378. Digital electric computer. REGIE NATIONALE DES USINES RENAULT, and COMPAGNIE EUROPEENNE D'AUTOMATISME ELECTRONIQUE. 29 June, 1967 [21 July, 1966], No. 30076/67. Heading G4A. A curve for a tracing machine or a machine tool is calculated by a computer by transforming a curve c in a unit cube (Fig. 1) to a curve C in a rectangle (Fig. 3) having lines AM, BN determined by the curve to be produced. The curve c is stored in the computer memory and has lines bn and o a m tangent to the curve at o a  and b. The shape required is set up on a model (Fig. 9) and points Ao and Bo are determined. Tangents Ao Mo and Bo No are measured, and the co-ordinates of points A, M, N, B are fed into the computer which calculates the quantities α, α<SP>1</SP>, α<SP>11</SP>, #, #<SP>1</SP>, #<SP>11</SP>, γ, γ<SP>1</SP>, γ<SP>11</SP> which are the projections of the lines AM, MN, NB on the OX, OY, OZ axes respectively, using the equations The co-ordinates of the points X w , Y w , Z w  on the curve C are then calculated using equations where X, Y, Z are points on the curve C.
Patent GB-1269505-A (GB)
Title: Improvements in or relating to the manufacture of graphitisable coke
Inventor: JENKINS MANSEL JOHN
IPC: C01B31/00
Filed: 1968-06-24
Abstract: 1,269,505. Making coke. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. 18 June, 1969 [24 June, 1968], No. 30106/68. Heading C5E. [Also in Division C1] Graphitizable coke is made by heating a mixture of non-graphitizable carbonaceous material, e.g. fluoretic or p-terphenyl, and graphitizable material, e.g. pitch, under pressure in two successive increasing temperature stages. The pressure is about 1000 p.s.i. and the temperatures 200‹ to 250‹ C. and 500‹ to 550‹ C, coking being confined to the second stage. Non- graphitizable material is defined as one which normally produces vitreous carbon on carbonizing. Mixtures specified include from 5 to 100 parts b.w. fluorene to 100 p.b.w. of pitch, and 50 p.b.w. p-terphenyl per 100 p.b.w. pitch.
Patent GB-698024-A (GB)
Title: Improvements in or relating to the formation of filter bags
IPC: A47L9/14
Filed: 1951-12-27
Abstract: 698,024. Bags. HOOVER, Ltd. Dec. 27, 1951 [Jan. 5, 1951], No. 30187/51. Class 94(ii) [Also in Group XXVIII] An air filter bag 10, Fig. 5, is formed from a blank 31, Fig. 4, which after stitching edges 38, 39 together forms the side wall, and a circular blank 30 which is stitched at its periphery 35 to the end 36 of the blank 31 and has a radial slit 40 the edges 42, 43 of which are stitched together after the edges 38, 39 have been stitched so that seams 46, 47 are in line.
Patent GB-861635-A (GB)
Title: Apparatus and method of casting
IPC: B22D18/06
Filed: 1958-09-22
Abstract: 861,635. Casting composite articles. SCHAEFER, E. J. Sept. 22, 1958, No. 30196/58. Class 83 (1). A method of making a casting in a mould comprises sliding a flexible sleeve 35 over two co-operating mould members 21, 23, drawing the sleeve tightly against the members, removing a seal 53 from an opening in the sleeve, and introducing metal therethrough. A stack of laminations 10 to form the rotor of a squirrelcage induction motor has a series of grooves 11 which are filled with aluminium by the method, the rotor also being provided simultaneously with cast annular portions 13. Initially, the upper and lower mould parts 21, 23, and the laminations are clamped together by a bolt 25 and placed on a base 30, 20, having a metal inlet 33. A vacuum is applied by a connection 47 between a casing 43 and the silicone-rubber sleeve 35 to expand the sleeve, which can then be slid over the mould parts and secured by clamps 52. Vacuum is then applied to a connection 51, and air pressure to the connection 47, to force the sleeve against the mould parts. When a chain 54 is pulled, to release a siliconerubber seal 53, metal flows into the mould. A series of bases 20 may be carried by a conveyer for automatic operation. The seal 53 may be replaced by a disc of the metal to be cast, so that it fuses when the inlet 33 is submerged.
Patent GB-484668-A (GB)
Title: Improvements relating to the storage of eggs
IPC: A23B5/045
Filed: 1936-11-05
Abstract: 484,668. Preserving eggs; cooling- chambers. SEABROOK, J. A. E. Nov. 5, 1936, No. 30203. [Class 49] [Also in Group XIII] In storing eggs, the eggs are placed in a tank 10 which is enclosed in an insulating casing 20 to provide an inter-mural duct containing a temperature influencing coil 32 which is the evaporator coil of a refrigerating plant, the duct serving for the passage of gaseous cooling medium by way of the coil 32 either through the tank 10 which has closable apertures 12, 14 in opposite walls or round the closed tank, the temperature of the gaseous medium being controlled by varying the temperature of the coil. In the form described, when the tank 10 has been charged with eggs, the apertures 12, 14 are opened and a fan 38, preferably electrically driven, is positioned in each aperture 12, one or more of which may be provided, and air is circulated over the coil 32 and through the tank 10 till the temperature of the eggs is reduced to about 32‹ F. The fans 38 are then removed from the tank 10 and placed in a partition 42 and closures secured over the apertures 12, 14. Inert or neutral gas, e.g. carbon dioxide or nitrogen, is then supplied to the tank through inlet 34, the air being displaced through outlet 36, the conduits 34, 36 bein closed when the greater part, e.g. 60 per cent or more, of the air has been replaced. The conduits 34, 36 may be connected outside the casing 20 in a circuit which includes a pump. The storage is then continued while maintaining the circulation of air round the tank. Before removing the eggs from storage they may be warmed to atmospheric temperature by passing a heating medium, e.g. warm air, through coil 32 and /or by fitting a heater 46 over aperture 14 which is opened together with apertures 12 over which the fans 38 are replaced; if the coil 32 is kept cool, moisture in the heated air will be condensed therefrom and the air dried prior to returning through heater 46 and aperture 14 to the tank. The Provisional Specification describes modifications in which, the outer insulating casing being omitted, the cooling coil and fan are disposed within the storage chamber, an atmosphere containing as nearly as possible only carbon dioxide being maintained in the chamber ; in a modification the cooling coil is separated by a partition from the storage space.
Patent GB-896800-A (GB)
Title: Improvements in or relating to battery diaphragms
Inventor: DUDDY JOSEPH CHARLES
IPC: H01M50/434
Filed: 1958-09-23
Abstract: An electric storage battery diaphragm is made by impregnating a porous, chemically inert carrier having a large number of interconnected pores, with ethylenically unsaturated monomers which are then polymerized in situ to form an ion-exchange resin in continuous phase throughout the pores of the carrier. Specified carriers are polyethylene, polyvinyl chloride, copolymers of vinyl chloride, and asbestos.  For alkaline batteries, such as Ag/Zn or Ni/Cd, the ion-exchange resin is cationic and may be a sulphonic acid resin or a carboxylic acid resin (in particular a methacrylic acid/divinyl benzene copolymer).  For acid batteries, such as Pb/acid batteries, the ion-exchange resin is anionic and may be an amine resin (in particular a vinyl pyridine/divinyl benzene copolymer). For use as battery diaphragms the above resins are converted to the salt forms, e.g. cationic resin is treated with hot weak alkali and then with hot strong alkali (such as KOH).  Specifications 565,022 and 709,146 are referred to.
Patent GB-262428-A (GB)
Title: Improvements in or relating to milking machines
IPC: A01J5/02
Filed: 1926-12-01
Abstract: 262,428. Gandil, E. V. Dec. 2, 1925, [Convention date]. Cow-milkers.-In that type of milking device wherein a movable plate describes in part a reciprocating movement towards and away from a fixed plate and in part a swinging movement, the movable plate is made as an end wall of a pleated rubber bag in the form of bellows in communication with the pulsator. As shown, the fixed plate is formed as the plane or concave side wall 7 of a crescent-shaped elongated rubber bag 5 attached to the curved portion 4 of a U-shaped holder 1. 'The movable plate comprises the normally inclined end 11 of bellows 10 connected by a tube 19 with the pulsator. A metal tube 21 connects the bag 5 with a distributing chamber 22 so that the pressure in the bag is increased when the milk is being squeezed from the teat; or the bag 5 may be replaced by a block of solid rubber. The walls 7, 11 are preferably of elastic material and so thin that thev mould themselves to the teat when pressed against it.
Patent GB-408710-A (GB)
Title: Improvements in or relating to a method of producing compounds of aluminium and the rarer elements from bauxite
IPC: C01F7/066
Filed: 1932-10-29
Abstract: Bauxite is treated with a strong solution of sodium hydrate with or without sodium carbonate and concurrently or subsequently with the oxides or hydrates of the alkaline-earth metals.  The calcium compound is preferably used, but may be replaced by barium or strontium whilst magnesium oxide or hydrate may be employed together with one or more of the alkaline-earths.  By this means the bulk of the alumina goes into solution, and compounds of beryllium, titanium, zirconium, and rare metals with the alkaline-earths are formed in the residue, which is then treated with a solution of sodium, potassium or ammonium carbonate to extract or render easily extractable the metals referred to. Treatment with sodium carbonate extracts beryllium and residual aluminium, which may be precipitated by carbon dioxide.  The residue from the sodium carbonate extraction may be treated with cold ammonium carbonate solution to bring into solution titanium, zirconium, and vanadium, thorium and cerium if present, from which zirconium, titanium &c. hydrates may be precipitated by boiling. Treatment of the original residue with cold ammonium carbonate solution slowly dissolves the titanium and zirconium, whilst hot ammonium carbonate forms hydrates but does not dissolve them. Specifications 400,984 and 404,028 are referred to.
Patent GB-976793-A (GB)
Title: A metal production vessel
IPC: C21C5/46
Filed: 1962-08-09
Abstract: 976,793. Metallurgical converters; crucibles. W. HUFNAGL. Aug. 9, 1962 [Aug. 9, 1961], No. 30569/62. Heading F4B. In a steel producing converter or crucible a nozzle 11 for the introduction of gases or liquids and/or solids extends through the bottom of the vessel 10, through the melt 12 and is bent through 180 degrees to extend back into the melt. A ball valve, Fig. 2 (not shown), may be located at the end of the nozzle, the ball being of lower specific gravity than the melt so that the nozzle is closed unless oxygen of sufficient pressure is supplied to the nozzle.
Patent GB-536820-A (GB)
Title: Improvements in electric heating apparatus for heating buildings and for other domestic purposes
IPC: F24H3/00
Filed: 1939-11-23
Abstract: 536,820. Electric heating apparatus. BELLING, C. R., and BELLING & CO., Ltd. Nov. 23, 1939, No. 30660. [Class 39 (iii)] A cast iron base a with air openings c supports a sheet metal cylinder d which may be corrugated or ribbed. A sheet metal frame k carries inclined arms k<SP>1</SP> with mica insulating strips l over which a resistance wire m is wound. The heating element is of generally conical shape to ensure better contact with the rising air current. A member e with depending portion e<SP>1</SP> and bars e<SP>2</SP> may support a kettle which is heated by the hot air. Hot air rising over the outside of the casing is trapped by the part e' and passes into the interior of the casing through openings h, Fig. 2 (not shown). A lamp n may be arranged within the base a.
Patent GB-477648-A (GB)
Title: Improvements in or relating to secondary emission electron multipliers
IPC: H01J43/20
Filed: 1936-11-10
Abstract: 477,648. Electron multipliers. GENERAL ELECTRIC CO., Ltd., and ALDOUS, W. H. Nov. 10, 1936, No. 30682. [Class 39 (i)] In a multiplier of the kind having crossed electric and magnetic fields, some at least of the cathodes and field electrodes are coaxial rings, and the magnetic field is set up by a current-carrying conductor lying along the axis. As shown, the cathodes are a series of rings 1, 2, 3, 4, 5, 6, spaced along the axis and the field plates 1<1>, 2<1>, 3<1>, 4<1>, 5<1>, 6<1>, are a coaxial set of rings. A copper bar 9 lying along the axis carries the current creating the magnetic field. In modifications the cathodes and field plates are interchanged, the cathodes are successive frusta of a cone, and the field plates are replaced by a single cylinder, or a cone parallel to the cathode frusta.
Patent GB-483844-A (GB)
Title: Improvements relating to jaw or toothed clutches
IPC: F16D23/04
Filed: 1936-11-10
Abstract: 483,844. Claw clutches ; variablespeed gearing. HARDY, W. G. Nov. 10, 1936, No. 30716. [Class 80 (ii)] The slidable sleeve of a claw clutch is, when the clutch is engaged, in splined engagement with its shaft only at a part substantially spaced axially from the claws, while between that part and the claws the sleeve is clear of the shaft and is corrugated so as to be capable of radial deflection, to obviate any tendency of the clutch to disengage due to irregularities in the claws or splines. In the variable-speed gear shown, a double-ended claw sleeve C, movable axially by a grooved collar C<1>, has axiallyspaced splined portions D<1> and D<2> co-operating with splines D on the shaft B and has corrugations H between the splined portions. When either clutch is engaged, the adjacent splined portion of the sleeve is out of engagement with the splines D and is clear of the shaft. Synchronizing friction cones are carried by a sleeve G surrounding the sleeve C and controlled by detent surfaces. Specification 403,943 is referred to in the Provisional Specification.
Patent GB-1078034-A (GB)
Title: A rod-shaped electric heater
IPC: H05B3/16
Filed: 1964-08-04
Abstract: A heat/stress resistant ceramic compound comprises:- .30%.Czech blue clay .21%.fireclay .15%.crystallized alumina .29%.Austrian steatite .3%.kaolin .3%.other admixtures