baber/WOPTO huggingface dataset:
Patent GB-926966-A (GB)
Title: Gas-fire radiant
Inventor: OATLEY ARTHUR FREDERICK
IPC: F24C15/24
Filed: 1960-08-16
Abstract: 926,966. Gas fire radiants. OATLEY TECHNICAL DEVELOPMENTS Ltd. Aug. 4, 1961 [Aug. 16, 1960], No. 28299/60. Class 126. A gas fire radiant has a restricted frontal aperture 21 immediately above an openwork front face, the upper end of the radiant being otherwise closed to form a chamber 25 in which products of combustion circulate before passing out of the radiant. Spaced horizontal bars 10 of pentagonal cross-section form the openwork front; the rear faces of the bars carrying thorns 20 projecting rearward. The side and rear walls are solid, the rear wall having forward projecting thorns 18. The thorns are all of paraboloid shape, and are in horizontal rows, those in each row being staggered with respect to those in adjacent rows. The side walls 9 project forward to end level with the front edges of the horizontal bars. The front wall above the top aperture is inclined rearwards and where an upwardly and rearwardly directed flue exists, may form part of its lower wall. The top section of the rear wall is inclined forwards. The combustion chamber 4 at the base of the radiant has solid vertical walls except for a vertically elongated slot 7 at each side for ignition, and may in some cases be separate from the radiant proper. According to the Provisional Specification, vertical grooves of semi-circular section may be provided on the front surface above the aperture 21.
Patent GB-1006157-A (GB)
Title: Vat dyestuffs of the anthraquinone series and process for their manufacture
IPC: C09B1/44
Filed: 1964-07-09
Abstract: The invention comprises anthraquinone vat dyes of the formula <FORM:1006157/C4-C5/1> in which one R is a heterocyclic residue and the other R is a heterocyclic residue or an aryl residue.  The dyes are made by acylating 2 : 5-di - (11 : 41 - diamino - 21 - anthraquinonyl)-1 : 3 : 4-oxdiazole.  The heterocyclic residue or residues may be derived from furan, thiophene, furyl-thiophene, thienyl-thiophene, oxdiazolyl-thiophene, thiazole, triazole, pyridine, quinoline, pyrrocoline, coumarin and coumarone and the aryl residue may be benzene or a methyl-, methoxy- or chloro-benzene residue. The dyes vat-dye and print cellulosic fibres.
Patent GB-319936-A (GB)
Title: An improved diaphragm valve
IPC: F16K7/16
Filed: 1928-10-03
Abstract: 319,936. Saunders, P. K. Oct. 3, 1928. Diaphragm valves; materials, special; protecting covers. - A flexible diaphragm valve closure member 4 is supported in all positions against the pressure of the confined fluid by intermeshing lugs or fingers 22, 23 formed respectively in the valve cover 8 and on a boss 10 to which the centre of the diaphragm is attached, as by a washer 20 and screw 21. The diaphragm is formed of two or more thicknesses of canvas or cord fabric cemented together and faced with indiarubber, more thickly on the operative surface, and is flexed equally in opposite directions. Peripherally, it is clamped between a rib and groove 14 in the meeting faces of the cover and body. The seating preferably comprises a rubber or fibre annulus 3 held in a dovetail groove. The boss 10 is loosely connected by a threaded collar 12 to a head 11<a> on the end of the operating spindle 11, the cooperating surfaces 10a &c. being spherical. The operating handwheel 18 is formed with a cupped boss 15 enshroulding the cover to exclude dust &c., a fibre or hard rubber collar 17 constituting a stop to prevent undue compression of the diaphragm.
Patent GB-340021-A (GB)
Title: Process of converting petroleum oils
IPC: C10G9/36
Filed: 1929-09-19
Abstract: <PICT:0340021/III/1> Hydrocarbons, cracking.--In a vapour phase cracking process in which the heat for the cracking reaction is supplied by a carrier gas, the oil is fractionally vaporized and the separate fractions are added in stages to the carrier gas so that the lighter fractions are subjected to a longer period of conversion. The crude oil is first heated in a still 10 and the fraction vaporized is passed to a reaction chamber 26 where it is converted by contact with hot gas heated preferably in a regenerative heater 20 of the hot blast stove type and admitted through a line 27.  The products of the reaction pass through a pipe 30 in which they are mixed with another fraction of the oil produced by heating the residual oil from the still 10 in the still 11, and the mixture is passed to a second reaction chamber 31 where it is cracked by the addition of further gas through a line 33.  The residual oil is passed to a further still 12 where on heating to higher temperature a further fraction is vaporized and, mixed with the products from the chamber 31, is cracked in a chamber 35 with more carrier gas supplied through a line 37.  The vapours produced issue through a pipe 40 and are condensed in the usual manner.
Patent GB-739720-A (GB)
Title: Improvements relating to lifting tongs and the like
Inventor: CHILD ALBERT
IPC: B66C1/42
Filed: 1952-11-11
Abstract: 739,720. Lifting dogs with automatic control. PRIESTMAN BROS., Ltd. Nov. 3, 1953 [Nov. 11, 1952], No. 28409/52. Class 78 (4). The lifting dog of Figs. 1 and 2 is automatically locked open after it has been lowered to release its load by engagement of a pin 26 on an arm 18 pivoted to a structure 1, 2 carrying the gripping arms 3 with a notch 29 in a member 16 carried by the head 11 by which the dog is raised and the gripping arms closed, and it is subsequently unlocked when the dog is again lowered. As the dog opens to release its load the pin 26 travels up the right hand surface (as seen in Fig. 2) of the member 16 and is then moved into engagement with a projection 27 on a further member 17 on the head 11 by a weight 21 biasing the lever 18 about its pivot 19 so that as the dog is again raised the pin 26 enters the notch 29 and the dog remains open. When the dog is again lowered to engage a load the pin 26 rises to the left of the projection 27 and is moved clear of the notch 29 by the weight 21 which moves the lever 18 into abutment with a stop 22. The stop 22 is carried by a heavily biased lever 23 also pivoted at 19 and normally abutting the base of a channel 2 on the structure 1, 2. As the dog is again raised however the pin 26 engages the left hand surface of the member 16, so turning both levers 18 and 23, until a pin 26 escapes the member 16 and the weight 24 biasing the lever 23 returns the pin 26 for subsequent re-engagement with the left-hand surface of the member 16. As indicated in Fig. 1 the pin 26 preferably projects from both sides of the lever 18 and the members 16, 17 are formed by spaced parallel cam-plates. The head 11 comprises spaced plates 14 guided by members 12 carried by the channel 2 which joins endplates 1. Four gripping arms 3 are provided and are joined in pairs by plates 3A which carry the load engaging devices 5, 6 of Specification 739,719, which is referred to. In the lifting dog of Fig. 11 the arm 18 is normally biased by a weighted lever 39 pivoted at 40 to one of the gripping arms and bearing on a lug 41 on the arm 18 which is thus held in abutment with the end of a lever 42 pivoted at 43 to the other gripping arm and resting on a stop 45. The weighted arms 39, 42 operate similarly to the arms 21, 23 of Fig. 2 to guide the pin 26 around the surfaces of the members 16, 17 which in this construction are carried by a member 30 fast with one of the links 33.
Patent GB-383018-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/50
Filed: 1931-10-13
Abstract: 383,018. Sharpening razors. ART METAL WORKS, Inc., 46, Center Street, Newark, U.S.A.-(Assignees of Aronson, L. V. ; 46, Center Street, Newark, New Jersey, U.S.A.) Oct. 13, 1931, No. 28475. Convention date, July 24. [Class 60.] The combined safety razor and blade sharpener is of the general type as that described in Specification 375,651 having a double-edged blade 14 overlying on one edge a guard and on the other a hand-operated sharpening roller 22, and the blade can be turned about a longitudinal central axis or a central axis perpendicular to its plane to present either face of each edge to the roller. For this purpose the blade is clamped between plates 23, 26 pivoted at 30, 31 in a stirrup 34 fixed on a handle plunger 38 which can be pushed against the pressure of a spring 46 and rotated so that the stirrup may rest in the extended position on the roller 22 during blade changing or cleaning. The base of the stirrup is shaped at 52, 53 to fit the roller and hold itself in this position. The sharpening roller 22, which may be of plastic composition, is journalled, by means of pins screwed in its ends, in ears in a box-like member 10 carried by the handle.
Patent GB-854670-A (GB)
Title: Reaction of alkali metals with epoxides
Filed: 1959-08-21
Abstract: Dialkali metal salts of diols are obtained by reacting an epoxy compound with from 1/2 to less than 2 gram-atoms of an alkali metal per mole of the epoxy compound at a temperature of 0 DEG C. or lower, thereby producing a dialkalimetal salt of the diol formed by two units of the epoxy compound joined, after ring-opening, through a carbon-to-carbon bond.  The products may be hydrolysed to give the corresponding diol.  The invention may be illustrated by the reaction of styrene oxide with sodium to give the disodium salt of 2,3-diphenyl-1,4-butanediol as follows:  <FORM:0854670/IV(b)/1> Preferably the alkali metal is used in a finely divided form dispersed in a chemically inert liquid, e.g. toluene, xylene, butyl ether, 1,2-dimethoxyethane, 1,2-diethoxyethane, mineral spirits, kerosene, isooctane, octane, decahydronaphthalene and other polycyclic hydrocarbons, and diaryl ketones.  Suitable epoxy compounds are, for example, acyclic epoxy hydrocarbons which may be unsaturated, aromatic or alicyclic hydrocarbon epoxides, hetecrocyclic epoxides such as epoxyethylpyridine or epoxyethyltetrahydrofuran, and also epoxy compounds that contain functional groups such as epichlorhydrin or an epoxidised fatty acid such as epoxyoleic acid.  The excess alkali metal may be destroyed by the addition of water which hydrolyses the metal salts to the corresponding diols.  Examples are given of (a) the reaction between styrene oxide and sodium to give the disodium salt of the diol which is hydrolysed by the addition of water to give 2,3-diphenyl-1,4-butanediol; (b) the reaction between propylene oxide and sodium to give the disodium salt of the diol which is hydrolysed to give the C6 diol; (c) the reaction between butadiene monoxide and sodium to give the disodium salt of the corresponding unsaturated diol; this was hydrolysed to give the unsaturated diol which was catalytically hydrogenated to give 3,6- and 1,8-octanediol; and (d) the reaction between ethylene oxide and sodium to give the disodium salt of the diol which is hydrolysed to give 1,4-butanediol.
Patent GB-1210293-A (GB)
Title: Pressure indicating device for filtered fluid circuits
IPC: B01D35/143
Filed: 1968-06-17
Abstract: 1,210,293. Filter clogging indicator. PRECISION MECANIQUE LABINAL. 17 June, 1968 [20 June, 1967], No. 28804/68. Heading B1D. The pressure P o  upstream and pressure P downstream of a filter, in an engine lubrication circuit, are applied to respective chambers 7 and 9 where they urge diaphragms 4, 5 in opposite directions, causing contact 22 to engage contact 17 when the pressure difference rises sufficiently. The downstream pressure is also applied to diaphragm 6, bearing against spring 27, which closes contact 23 on to contact 17 when the downstream pressure falls sufficiently. Springs 20, 21 carrying contacts 22, 23 are located in chambers 8, 10 which are open to the atmosphere. Closing of either pair of contacts illuminates a signal lamp, possibly to different degrees of illumination. The whole unit, comprising chambers 7-10 and contacts 17-23 is screwed into a filter housing 3. Alternatively (Fig. 2, not shown) the chambers and electrical contacts are made as separate units which demountably fit together.
Patent GB-289352-A (GB)
Title: Improvements relating to hand operated riveting machines
IPC: B21J15/14
Filed: 1927-10-29
Abstract: 289,352. McGibbon, W. Oct. 29, 1927. Brakes.-A friction-lining 28 is riveted to a brake-block 27 by a machine comprising a fixed jaw 12 secured to a bench 2 and having pivoted thereto a jaw 3 operated against the pressure of a spring 21 by a hand-cam 15 journaled in brackets secured to the fixed jaw.
Patent GB-1121441-A (GB)
Title: Improvements in or relating to balers
Inventor: TUNCHON PETER
IPC: A01F15/08
Filed: 1965-07-07
Abstract: 1,121,441. Baling machines. MASSEYFERGUSON (AUSTRALIA) Ltd. 29 June, 1966 [7 July, 1965], No. 28877/65. Heading B5F. The cross-section of the discharge opening (15) of a bale chamber (13) is varied by means of a piston and cylinder device 32, 33 acting on pivoted wall plates 16, 17, manual control means (40, 47) being provided whereby a tractor driver can supply fluid to or exhaust  it from the cylinder 32 in order to maintain a constant pressure, indicated on a gauge (52), thereby maintaining a constant resistance to passage of bales through the opening. The piston and cylinder device 32, 33 acts on the plates 16, 17 through rods 23, springs 21 and cross-bars 18, 19, 26. The manual control means may comprise a pump (38) operated by a pivoted lever (40), the pump being mounted on a tractor (11) and connected to the cylinder 32 by a flexible hose (35). Modifications.-Leaf springs may be used in place of coil springs 21. The pump (38) may be push-button controlled.
Patent GB-1036179-A (GB)
Title: Heat treatment of nickel-chromium alloys
Inventor: MITCHELL WILLIAM IAN
IPC: C22C19/05
Filed: 1964-07-13
Abstract: An alloy containing in percentage by weight <TABS:1036179/C6-C7/1> is solution treated at 900-1200 DEG C., treated at 550 DEG -700 DEG C. to precipitate the gamma1 or gamma11 phase, and finally aged at a higher temperature such as 750 DEG -850 DEG C.  Higher hardness and strength may be obtained by a two stage ageing such as 2-5 hours at 750 DEG C. followed by 4-40 hours at 680 DEG -720 DEG C. Use of the alloy for gas turbine rotor discs is referred to.
Patent GB-1237096-A (GB)
Title: Viscosity monitor
IPC: G01N11/14
Filed: 1968-06-18
Abstract: 1,237,096. Viscosity monitors; measuring pour points of liquids. BRITISH PETROLEUM CO. Ltd. June 18, 1968 [June 27, 1967], No. 28899/68. Headings G1D and G1S. A viscosity monitor 32 comprises a viscous drag detector 11, a ball 12 of which produces a viscous drag when immersed in and rotated relative to a liquid, a driving member 10 adapted to apply sufficient torque to the drag detector to overcome a relatively low viscous drag but insufficient to overcome a relatively high viscous drag and a device for indicating the commencement of relative displacement between the drag detector and the driving member. The displacement indicator comprises a fixed contact 20 on a portion 13a of the member 10 and a contact 19 biased into engagement with the contact 20 by a spring 17 mounted on a spindle between insulated pivots 15, 16. A motor 34 rotates the member 10 and is in contact with the portion 13a but is separated from the portion 13b by insulators 14, 18. The monitor, along with the liquid, the pour point of which is to be determined, and a thermocouple 33 are positioned in a cooling chamber 41. The walls of the chamber 41 are surrounded by a bath 42 of cold fluid drawn from a refrigerated bath 43 through an electromagnet valve 45 by a pump 44. A thermistor 46 measures the temperature of the bath 42 and the portion 13b of the driving member 10 is connected to a control unit 47 by a wire 35 and a collar 21. The cooling of the liquid steadily increases its viscosity until the viscous drag on the ball 12 overcomes the torque of the spring 17 and separates the contacts 19, 20. The control unit then signals a recorder 48 to record the temperature measured by the thermocouple, stops the motor 34 and switches on a heater 36.
Patent GB-1008899-A (GB)
Title: Tractor-drawn haymaking machine
IPC: A01D78/10
Filed: 1962-07-27
Abstract: 1,008,899. Haymaking machines. MASCHINENFABRIK FAHR A.G. July 27, 1962 [Aug. 4, 1961], No. 28900/62. Addition to 975,802. Heading AlF. In a tractor-drawn haymaking machine, having a drawbar 3 and at least one pair of oppositely-rotating power-driven rakeheads 10 juxtaposed on a transverse support 5, the support carrying at each end an extension 12 on which is mounted a further power-driven head 14, the drawbar is pivoted to the transverse support so that it can be swung over through 180 degrees about the axis of the support, whereby the machine may be driven in opposite directions in which the rake heads are respectively rearwardly-convergent, for windrow-formation, or rearwardly-divergent, for tedding and swath-turning. The drawbar 3 is bifurcated and terminates in a pair of circular clamps 4 embracing the tubular support 5 which contains jointed shafts transmitting drives to the heads from a gearbox 6. The gearbox has alternative input-shafts 7, 8 on opposite sides and may include differt ratios for the inner and outer heads. The extensions 12 are telescopic and angularly adjustable relatively to the support 5. The inclination of the heads to their supports is also adjustable. The machine may be mounted on tractor hitch-linkage. Specification 992,336 is referred to.
Patent GB-1155988-A (GB)
Title: Automatic Regulating Valve for Ventilation Plants.
Inventor: FAHRE OLAV
IPC: F24F11/75
Filed: 1966-06-28
Abstract: 1,155,988. Valves. O FAHRE. 28, June, 1966 [28 June, 1965], No. 28984/66. Heading F2V. [Also in Division F4] An automatic regulating valve which passes air at a substantially constant rate of flow comprises a flap 2 mounted on a horizontal shaft 4 within a housing 1, the upper part of the flap carrying a wing 3b which may be bent as shown or can be straight (Fig. 1). The movement of the valve may be damped by a fly wheel (4<SP>1</SP>, Fig. 2) or by a piston 12 in a cylinder 13, the cylinder being pivoted to the housing at 16 and the piston being pivoted to a crank 9 at 10, the crank being fixed to the shaft 4. A screw 17, along which a weight 18 is movable, may be attached rigidly to the crank 9 in order to bias the flap to the semi-open position shown.
Patent GB-908517-A (GB)
Title: Battery grid alloy
IPC: C22C11/10
Filed: 1961-08-11
Abstract: An alloy for an electric storage battery grid has the following percentage composition, by weight: Sb 2-6; Cd 0.01-03; As 0.3-0.8; Sn 0.-07; Pb the balance, the amount of Cd varying inversely with the amount of Sb present and the combined amounts of Cd and Sn (or Cd only when no Sn is present) being at least 0.15.  Grids made from the alloy are hardened by water quenching immediately after casting.
Patent GB-603260-A (GB)
Title: Locks or catches
IPC: E05B65/08
Filed: 1945-11-02
Abstract: 603,260. Door locks. FLINTOFF, D. Nov. 2, 1945, Nos. 29136/45 and 18138/46. [Class 44] A door lock, Fig. 2, comprises a keep 8, a latch member 20 for co-operation therewith and a lever 18 carrying the member 20 which is adapted to be disposed in either of two terminal positions, in one of which the keep 8 is engaged by the member 20 and in the other released for withdrawal. A pivoted operating lever 13 provided with an over-centre spring toggle device 28 and an operating handle 14, carries an arm 16 co-operating with lugs 21, 22 on the lever 18. The operating lever 13 is also operable by the keep 8 as it passes into and out of the lock, engaging a sloping lug 32 to reset the lever 18 in the locking position. The door may be closed when the lever 18 is in the locking position, the latter being raised by the sloping face 34 of the keep 8. In an alternative arrangement, Fig. 5, the latch lever 17<1> is mounted on the same pivot 12<1> as the operating lever 14<1>, the over-centre spring 46 being disposed between them. The keep 8<1> has a second limb 52 for co-operation with a double lever 54 which controls the operating member through a rod 56 to reset the lock as the keep 8<1> is withdrawn. The lever 54 serves, under the action of spring 46 yieldingly to retain the door closed when the latch 17<1> is in the released position.
Patent GB-1562712-A (GB)
Title: Method of making coins
IPC: B22F7/06
Filed: 1976-07-14
Abstract: A powder metallurgical method, in which the alloy components in the coin blank are distributed inhomogeneously or a foreign additive is distributed in the blank homogeneously or in a localised manner or the metal structure is influenced. By means of these material properties, an additional protection against forgery is achieved. In addition to tungsten, other metals can also be used as foreign additives, such as molybdenum, niobium, tantalum, chromium, zirconium and titanium, but also metal oxides, such as Al2O3, TlO2, ThO2 and ZrO2, provided these are sufficiently resistant to corrosion and do not alloy with the coin metals. Refractory oxides, such as Al2O3, ThO2, ZrO2 and TiO2 are also suitable.
Patent GB-1426576-A (GB)
Title: Preparation of alpha,beta-unsaturated carboxylic acids
IPC: C07C57/03
Filed: 1973-06-20
Abstract: 1426576 Unsaturated carboxylic acids ROHM GmbH 20 June 1973 [30 June 1972] 29353/73 Heading C2C [Also in Division B1] Alpha, beta-unsaturated carboxylic acids are produced by the oxidative carbonylation of ethylene and/or propylene which comprises reacting ethylene and/or propylene in a substantially anhydrous solvent medium in the presence of a catalyst system comprising, or derived from, at least one solvent-soluble rhenium compound together with at least one solvent-soluble compound of lithium, copper, a metal of Gps. 2 to 6, manganese or iron. Specified reaction conditions include 30‹ to 300‹ C., 10-120 atm. pressure and a stoichiometric ratio of olefin, CO and O 2 . The examples described the carbonylation of (i) ethylene to form acrylic acid together with some propionic acid and beta-acetoxypropionic acid (from which further acrylic acid may be obtained by pyrolysis), (ii) propylene to form crotonic acid together with some methacrylic acid.
Patent GB-914453-A (GB)
Title: Dyes of the anthraquinone series
Inventor: BRAUN WILLY
IPC: C09B1/32
Filed: 1960-08-25
Abstract: Polysryrene or linear polyamides, possibly with the addition of titanium dioxide are dyed in bulk with a dye of the anthraquinone series containing at least one para-(arylcarbonyl)-phenylamino radical attached to the nucleus.  For dyeing polystyrene, dyes are preferred of the formula <FORM:0914453/IV(a)/1> where D is a group of the formula <FORM:0914453/IV(a)/2> and each of X1, Y1 and Z1 is hydrogen, a group D or a group of the formula <FORM:0914453/IV(a)/3> Red, violet and blue dyeings are obtained.ALSO:The invention comprises anthraquinone dyes containing at least one phenylaryl ketone radical, free from carboxylic acid groups, attached to the anthraquinone nucleus via an amino group in the position of the phenyl ring para to the keto group, and a process for making them by reacting at elevated temperatures an anthraquinone derivative containing at least one primary or secondary amino group directly attached to the nucleus with a p-halo-phenyl aryl ketone. Anthraquinone derivatives include aminophthaloylacridones, aminoanthrapyrimidines and amino-anthraquinones substituted by hydroxy, methoxy, acylamino, bromo and nitro groups.  Aryl radicals may be substituted by hydroxy, alkyl or alkoxy but those specified are naphthyl, diphenyl and phenyl.  Examples are given.  The dyes are pigments for cellulose acetate, viscose, polyacrylonitrile, copolymers of acrylonitrile and polystyrene, giving red, violet and blue shades (see Group IV(a)).