baber/WOPTO huggingface dataset:
Patent GB-901927-A (GB)
Title: Copper-containing polyazo dyestuffs
IPC: C09B45/48
Filed: 1960-03-10
Abstract: The invention comprises copper complexes of dyes of formula <FORM:0901927/IV (b)/1> where R is a pyrazolone or naphthalene coupling component residue which may contain azo groups and has OH vicinal to -N=N-, R1 is a diazo component residue with Y o to -N=N- and Y is a metal complex-forming group.  The dyes are made by coupling a copper complex of an azo dye of formula <FORM:0901927/IV (b)/2> with a diazo component containing, o to the diazonium group, a metal complexforming group, or one convertible thereto during metallisation, and coppering the product in substance, or on the fibre.  Before or after coppering, amino groups in R or R1 (which may be derived from nitro or acylamino groups) may be diazotised and coupled with coupling components or treated with mono- or poly-functional acylating agents, or nitro groups may be reductively linked in the presence of other nitro compounds to form azo or azoxy groups, or metal complex-forming groups present, in addition to the metal complex-forming OH and Y groups, may be coppered.  Indicated substituents for R and R1 are alkyl, alkoxy, amino, halogeno, nitro, acylamino, sulphonic and carboxylic acid, azo and a condensed ring such as <FORM:0901927/IV (b)/3> These groups may be present initially or introduced into the dye at any convenient stage of the process. Substituents mentioned, which may be transformed into a hydroxy group during metallisation, are H and SO3H.  Metal complex-forming groups include NH when in a heterocyclic ring.  Examples of specified compounds corresponding to R1 are aniline-2-carboxylic acid, 2-chloraniline-4-sulphonic acid, 2-methoxyaniline-5-sulphonic acid, 1-bromo-2-naphthylamine-6-sulphonic acid, 4-aminobenztriazole, 2-amino-3-chloro- 5-benzenesulphonylnaphthol- 7-sulphonic acid, 1-aniline-4-sulphonic acid --> 5-methyl-2-methoxyaniline, dianisidine and 4-41-diamino- 1,11-azobenzene- 3, 31-dicarboxylic acid. Indicated coupling components are <FORM:0901927/IV (b)/4> and <FORM:0901927/IV (b)/5> The dyes may be decoppered and recoppered on the fibre.  The dyes colour vegetable fibres.  Examples are provided of the preparation of the dyes and their use in colouring cotton in green, blue or grey shades.  Specification 879,235 is referred to.
Patent GB-1078783-A (GB)
Title: Improvements in or relating to character reading
Inventor: PARKER BARRY NORMAN
IPC: G06V30/224
Filed: 1963-03-04
Abstract: 1,078,783. Automatic character reading. CROSFIELD ELECTRONICS Ltd. Feb. 28, 1964 [March 4, 1963], No. 8553/63. Heading G4R. In a reading apparatus for characters comprising a series of bars separated by long or short gaps according to a code, the bars are scanned and signals produced having corresponding long or short time intervals, these being distinguished by comparison with a reference duration, exceeding the short time interval but not the long time interval, signals corresponding to long and short gaps being entered into a register in the order of occurrence and there being means for identifying the character from the stored information. The characters are sensed by a reading head 1, Fig. 1a, to obtain for each bar a positive swing followed by a negative swing as shown in Fig. 2. This waveform is entered into a delay line and the original and a slightly delayed version are applied to comparators 4, 5, which give short pulses when the two waves become equal. Comparator 5 produces pulses corresponding to the leading edges and comparator 4 produces pulses corresponding to the trailing edges of the bars. These pulses set and reset a flip-flop 8. The set output, corresponding to the presence of a bar is applied to a buffer 9 which develops a leading edge pulse. This is applied to a monostable unit 13 which sets and resets after a period corresponding to the correct width of the bars. This compensates for non-standard bar width. The output of unit 13 is shown in Fig. 2. The trailing edges of these signals are used to set monostables 16, 19, giving the reference length pulses, and 20, the output of which is a delayed series of pulses as shown in line 8 of Fig. 2. These are gated at 15 with the output from unit 13 to select the two pulses which are followed by long gaps (the third and fourth) and the last. A monostable 17 produces trailing edge pulses (similar to these shown in line 5, Fig. 2), from the output of unit 13 and these are added in OR gate 18 to the series of three pulses from gate to produce a series of ten regularly spaced clock pulses as shown at the bottom of Fig. 2. Leading edge pulses from buffer 9 are applied to the first stage of shift register 11 and the clock pulses are applied to the shift line. The seven pulses from buffer 9 set seven of the nine stages, the other two being unset. The instant when the character pattern is properly stored in the register is found by gating together at 26 the outputs of the end two stages. The other seven outputs are gated together at 31, Fig. 1b, in combinations appropriate to each possible character, these gates being enabled by the signal from gate 26. Means are also described for detecting missing characters and for rejecting a series of characters if any one of them is not recognized.
Patent GB-526496-A (GB)
Title: The purification of nitriles
Filed: 1939-03-17
Abstract: 526,496. Nitriles. DU PONT DE NEMOURS & CO., E. 1. March 17, 1939, No. 8617. Convention date, March 23, 1938. Drawings to Specification. [Class 2 (iii)] Aliphatic dinitriles are purified by bringing them into contact with an aqueous solution of sulphurous acid or a water-soluble sulphite. The crude nitrile may be washed with a bisulphite solution, which may be acidulated, or it may be treated with an aqueous solution of sulphur dioxide, and, after separating the nitrile, the latter may be washed with water or ammonium bisulphite solution and finally distilled under reduced pressure. Examples are given of the purification of adiponitrile obtained by passing the vapours of adipic acid with ammonia over silica gel at 350‹C. The purified adiponitrile may be hydrogenated in the presence of a nickel catalyst ; hexamethylene imine and hexamethylene diamine are obtained. The process may be applied to other aliphatic dinitriles, e.g., glutaronitrile, sebaconitrile, pimelonitrile, azelaonitrile, α- methyladiponitrile, and α-α<SP>1</SP>-dimethyladiponitrile. These nitriles are obtainable by passing the vapours of the corresponding acid with ammonia over a dehydration catalyst, e.g. silica gel.
Patent GB-1139733-A (GB)
Title: Novel aryl-alkyl-carbinols and compositions containing them
Inventor: GAUTHIER BERNARD
IPC: C07C37/20
Filed: 1966-02-28
Abstract: 1,139,733. Aryl - alkyl - carbinols. L'lNDUSTRIE BIOLOGIQUE FRANCAIS. 17 Feb., 1967 [28 Feb., 1966], No. 8662/66. Heading C2C. Novel aryl-alkyl-carbinols of the general formula wherein, when -C 3 H 7  is n-propyl, R is hydrogen or an acyl group and R 1  and R 2  are each hydrogen, a halogen or a hydroxyl or alkoxy group or together form a methylenedioxy group and, when -C 3 H 7  is isopropyl, R is hydrogen or an acyl group and R 1  and R 2  are each hydrogen or a hydroxyl or alkoxy group or together form a methylenedioxy group, are prepared by reacting a magnesium alkyl halide with an aromatic aldehyde or by the action of a magnesium aryl halide on an aliphatic aldehyde, followed by optional reaction of the resulting alcohol with an acid chloride or anhydride. Pharmaceutical compositions having choleretic properties comprise an aryl-alkyl-carbinol of the above formula and an inert, physiologically acceptable carrier.
Patent GB-558293-A (GB)
Title: Hack saw grinding fixture
IPC: B23D63/12
Filed: 1942-06-25
Abstract: 558,293. Grinding saws. SMITH, N. C. June 25, 1942, No. 8733. [Class 60] A support for saws during grinding comprises a flat table 13 formed with an extension 18 having a longitudinal stop flange 20 and a groove 19 parallel thereto to accommodate the teeth of a blade placed flat on the table and a gap 22 for the grinding wheel 11, whereby a saw blade may be moved by hand to bring the teeth successively into grinding position. A second groove 21 is provided along the opposite edge of the table for the other teeth of a doubleedged saw. A detent 23 under control of a spring 28 is provided to engage a tooth and hold the saw against endwise movement.
Patent GB-586723-A (GB)
Title: Electrical connectors and switches, and resistive contacts therefor
IPC: H01H33/16
Filed: 1944-05-08
Abstract: 586,723. Two-part couplings. BENDIX AVIATION CORPORATION. May 8, 1944, No. 8734. Convention date, May 31, 1943. [Class 38 (i)] [Also in Group XXXVII] A contact for switches (see Group XXXVII) or plug-couplings, comprises parts respectively of low and high resistance, the latter consisting of sintered or laminated metal. Plug-pins 58, 60 enter separate socket-compartments and slidingly engage fixed contacts 40, 42 each comprising a high-resistance part 44 and a low resistance part 46, whereby the resistance is gradually cut out on insertion. The sintered portion may be porous at its free end and dense at its junction with the low-resistance part, Fig. 5 (not shown), or the laminated part may comprise metals of different resistance, Fig. 6 (not shown), or metal plates may be interleaved with resistive material, Fig. 7 (not shown).
Patent GB-741434-A (GB)
Title: Improvements in metal base greases
IPC: C10M169/00
Filed: 1953-03-30
Abstract: A lubricating grease comprises a lubricating oil thickened to grease consistency by means of a lithium soap, together with 0.01-10 per cent by weight (based on the weight of the oil) of a compound of formula <FORM:0741434/III/1> wherein R1 and R2 are hydrogen, alkyl, aryl, cycloalkyl, substituted alkyl, substituted aryl or substituted cycloalkyl, and R3 is hydrogen or carboxymethyl.  The compounds of the above formula are chelating agents and act as deactivators for any polyvalent metal ions present in or entering the grease.  The compounds of the above formula may be replaced by their alkali metal salts or may be replaced at least in part by their preformed metal chelates with such metals as lead, cadmium, cobalt or zinc.  Suitable chelating agents are N-substituted glycines <FORM:0741434/III/2> N-substituted aspartic acids <FORM:0741434/III/3> and N-substituted alkylene diamines <FORM:0741434/III/4> wherein X is hydrogen, alkyl or substituted alky, Y is hydrogen or carboxymethyl and alkylene is ethylene, propylene or trimethylene.  Preferred chelating agents are those of formula <FORM:0741434/III/5> wherein Z1 is alkyl or substituted alkyl and Z2 is hydrogen, alkyl or substituted alkyl.  In the examples, lubricating greases consist of mineral oil and (1) lithium stearate, aluminium stearate and the preformed lead chelate of the di-lithium salt of ethylene diamine tetra-acetic acid or (2) lithium soap of hydrogenated castor oil and either the tetra-lithium salt of ethylene diamine tetra-acetic acid or the preformed lead chelate of the di-lithium salt of ethylene diamine tetra-acetic acid.
Patent GB-130933-A (GB)
Title: An Improved Means for Re-adjusting the Timing of the Spark of a Magneto-electric Machine.
Inventor: HEYWORTH THOMAS RICHARD
IPC: F02P1/00
Filed: 1919-04-07
Abstract: 130,933. Heyworth, T. R. April 7, 1919. Timing.-An adjustable coupling is arranged between the cam shaft 1 and the driving shaft 8 to enable the shafts to be turned relatively to adjust the timing of the spark of the magneto. A toothed wheel 2 on the shaft 1 is engaged by lugs 3 on a member 4 provided with pins 5 slidably engaging holes in a flange on the shaft 8. A coned portion of the member 4 is forced into engagement with the tapered end of the shaft 1 by means of a spring 11. When adjusting the timing of the spark, the member 4 is withdrawn to release the lugs 3 from the wheel 2, and, after the required relative movement of the shafts 1, 8, the parts are re-engaged.
Patent GB-714734-A (GB)
Title: Tyre lug buffer
Inventor: RAWLS VAUGHN
IPC: B29D30/68
Filed: 1952-04-07
Abstract: 714,734. Flexible shafts. AMERICAN TIRE MACHINERY, Inc. April 7, 1952, No. 8806/52. Class 80(2) [Also in Group XXIII] In apparatus for buffing worn lugs on heavy duty tyres to sharpen their edges and so restore their effectiveness or for buffing down worn lugs preparatory to relugging (see Group XXIII), the buffing head 6 carries dissimilar wheels 30, 32 driven selectively by a flexible shaft 18 disposed within a flexible tubular sheath 19. The wheels 30, 32 are removably mounted on spindles 41, each spindle being journalled at each end in antifriction bearings 45, 46 secured in housings 47, 48. Each spindle has at one end a recess 50 (e.g. hexagonal in cross-section) to receive the end spigot of the flexible shaft 18 ; the housing 48 for each spindle bearing 46 adjacent the recessed end of the spindle is extended axially to provide a socket 51 for a terminal collar 52 fitted to the end of the fixed outer tube of the flexible drive; the collar 52 is held in the socket 51 associated with the wheel 30 or 32 to be driven by a set screw 54 passing through the well of the socket 51 and engaging an annular groove 55 in.the collar 52.
Patent GB-1377572-A (GB)
Title: Electrode holder for arc gouging torch
IPC: B23K9/013
Filed: 1972-02-25
Abstract: 1377572 Removing metal by fusion J H MADDISON 25 Feb 1972 8813/72 Heading B3V [Also in Division H5] An electrode holder 10 for a gouging torch has an adjustable clamping screw 36 engaging a rod electrode 32 in a greater diameter bore 14, to secure it non-coaxially therein, so that the gas jet is directed parallel to the electrode and offset therefrom thereby jetting molten metal out of the cut when operating the torch. Inspection of the electrode 32 into bore 14 causes opening of a valve member 26 to permit gas flow via grooves 42, 43, in the member 26. If rod 32 becomes disengaged from clamping screw 36, gas pressure forces the valve member into engagement with an O-ring 19, thereby interrupting the gas supply. Current is supplied to metal parts 22, 13, via an insulated connector bar 33 threaded into part 22. Air or oxygen are supplied via hose 25, or an inert or reducing gas if required. Rod 32 is copper-coated, powdered carbon.
Patent GB-177782-A (GB)
Title: Improvements in automatic rifles
IPC: F41A17/38
Filed: 1921-08-09
Abstract: 177,782. Declaye, J. Aug. 10, 1920, [Convention date]. Breech actions, sliding breech-block; magazines.-Consists (a) in mounting the firing and safety mechanism of an automatic rifle on plates integral with the magazine and (b) in means for mounting a tubular magazine in the gun. In the construction shown, the parts of the firing. mechanism and the safety device are mounted on the three plates 2, 3, 24 which are integral with the tubular magazine 1. The magazine is secured at the front by a bolt 6 which is suspended from a block 4 attached to the barrel and passes through a lug 7 on the magazine. At the rear the magazine is secured by a detachable bracket 13, Fig. 4, fitting in a slot in the breechbody 12 and having a depending lug 10 fitting between the side plates 3, 24 and secured by a cross-pin. The breech-body 12 is formed integral with the barrel.
Patent GB-1171576-A (GB)
Title: Door Stop for Automatically Holding Doors in an Open Position
IPC: E05C17/20
Filed: 1968-02-23
Abstract: 1,171,576. Automatic door stop. ED. SCHARWACHTER. 23 Feb., 1968 [25 March, 1967], No. 8926/68. Heading E2X. A door stop for automatically holding doors in the open position (indicated by full lines in Fig. 1) comprises a door-retaining strip 10 pivotally mounted e.g. on a door 12 about a spindle 14, which has in one side edge 17 a recess 15, and guide means 11 attached e.g. to a door-way member and having two rollers 19, 20 for engagement of the door-retaining strip, the roller 20 being adapted to act against a torsion spring shown as a C-shaped wire in Fig. 2. The spring is supported in a casing of said guide means 11 (Fig. 3 not shown) such that one end 37 supports roller 20 and the other end 25 rests on an extension 23 of said casing. On opening the door the strip 10 slides between the rollers 19, 20 until the depression 15 engages roller 19, under the action of the spring, to produce the locking action.
Patent GB-744064-A (GB)
Title: Improvements in or relating to screw and nut mechanisms
Inventor: BALL EDGAR DALE
IPC: B25B5/10
Filed: 1953-03-31
Abstract: 744,064. Screw and nut gearing. SPEED TOOLS, Ltd. March 30, 1954 [March 31, 1953], No. 8941/53. Class 80(3) [Also in Group XXIII] Mechanism for moving a member 17 relatively to a screw 11 comprises a nut member 18 rotatably supported in the member 17. The nut member 18 is also free to move axially in member 17 under pressure of a spring 21 against a cam surface 29 on a pivoted operating member 23. Movement of the member 23 to the position in Fig. 1 causes the cam surface 29 to effect a quick downward movement of member 17, after which further movement can be obtained by rotation of the nut 18 by the member 23. The device is particularly applicable to clamps, as shown, vices and presses.
Patent GB-142519-A (GB)
Title: Improvements in apparatus for the continuous rectification of liquid air
IPC: F25J3/04
Filed: 1918-05-30
Abstract: 142,519. Barbet et fils et Cie, E. Oct. 9, 1917, [Convention date]. Addition to 131,321. Straight t u b e s between headers.-In a tubulous heatexchanger for use in apparatus for producing oxygen and nitrogen by the continuous rectification of liquid air as described in the parent Specification, long tubes 3 of small cross-section are enclosed by a casing 4 terminating in chambers 7, 11 of large cross-section, the ends of the tubes being spread out to facilitate their connection with the tube-plates. The tubes are spaced apart by small rings 5 soldered or otherwise secured on the tubes. The chambers are fixed to the ends of the casing after the tubes have been expanded in 'their tube-plates, the chambers being secured by bolts passing through flanges 10, 13.
Patent GB-622722-A (GB)
Title: Improvements in or relating to differential manometers
IPC: G01L7/22
Filed: 1947-04-02
Abstract: 622,722. Differontial pressure gauges. WHITAKER, A. April 2, 1947, No. 8967. [Class 106 (ii)] A differential pressure gauge comprises two hollow members 1, 2, responsive to pressure differences of gaseous fluids, supported by means including a torsion member which is twisted on vertical movement of the members 1, 2, and means for translating the twist of the torsion member into a visual indication of the degree of such twist. The members 1, 2 comprise light-weight metal bells suspended in a sealing liquid, such as paraffin, having good wetting properties, by means of fine metal ribbons or wires 4, 5. The paraffin is in two separate communicating tanks 6, 7 on a platform 8 provided with pipes 10, 12 and 11, 13 which communicate between the air spaces in the bells and the two measuring points of the gaseous fluids to be gauged. The ribbons 4, 5 are secured to the ends of a beam 3 suspended from a transverse beryllium-copper torsion strip 14 (not shown) which is twisted on movement of the beam. An arm 17 on the middle of the beam 3 has a curved transparent calibrated scale 18 on the lower end adapted to swing between an electric lamp 19 and a lens device 20, an image of the scale being projected by an inclined mirror on to a vertical screen in a housing 27. The arm 17 and scale 18 are counterbalanced by an adjustable weight. The torsion strip 14 is adjusted by a knob 22 having an arm 25 projecting between adjusting-screws 23, 24. To increase the pressure range of the gauge, the bells 1, 2 may be formed with depressions to accommodate weights. The sensitivity of the gauge may be adjusted by weights 30, 31 adapted to vary the centre of gravity of the beam assembly, or by a screw-clamp which reduces the effective length of torsion strip 14.
Patent GB-1421702-A (GB)
Title: Electrochemical cells
IPC: H01M10/39
Filed: 1974-02-27
Abstract: 1421702 Sodium-sulphur batteries COMPAGNIE GENERALE D'ELECTRICITE 27 Feb 1974 [28 Feb 1973] 8999/74 Heading H1B A battery of the Na-S type, Figs. 1, 2, comprises anode compartments 8 and cathode compartments 10 of prismatic cross-section formed by walls 12, 20 of beta alumina constituting the electrolyte. A stainless steel tank 2 containing liquid sodium constitutes the negative terminal and communicates with the compartments 8 through apertures 4. The compartments 10 contain liquid sulphur or sodium polysulphides impregnated into graphite felt (not shown) and each compartment has a conductor rod 14 of chrome-plated steel connected to a conductor plate 16 forming the positive terminal. Plates 6, 18 are of alpha alumina or mullite and are sealed by glass to the ends of the walls 12, 20, (Fig. 5, not shown). Alternative cathode active material is phosphorus or selenium or alkaline salts of these elements. The anode and cathode compartments 8, 10 may take alternative forms.
Patent GB-1392613-A (GB)
Title: Apparatus for distributing yarn being wound into cross-wound  packages
IPC: B65H54/28
Filed: 1972-02-28
Abstract: 1392613 Yarn traversing F M N SCHUSTER & CO 28 Feb 1972 [26 Feb 1971 25 Sept 1971] 9063/72 Heading D1J Yarn is traversed onto a package by an arm reciprocated by an endless groove in a roller, the arm being pivoted by the groove at the traverse ends to prevent yarn build up at the package ends. Arm 4, Fig. 5, bearing yarn guide 5 is traversed in guide 8 by an endless groove 1 in rotating roller 6. When the groove follower on arm 4 enters the return section of the groove, the arm 11 is pivoted in guide 8. If, approaching a return section, the arm precedes the follower, the arm is immediately swung in the opposite direction when the follower enters the return section. The arm, Fig. 9a, may be integral with slide block 13 which allows the arm to slide and pivot in guide 8, or may be pivotally mounted in a slide block. Alternatively, Figs. 15 to 17, groove followers 25, 26 are mounted on separate sliders which slide parallel to roller 21 and which are pivotally connected to arm 44.
Patent GB-767080-A (GB)
Title: Improvements in the packing of coffins and the like
IPC: B65D65/08
Filed: 1955-03-29
Abstract: 767,080. Packaging coffins and like articles. AVBOB (FUNERAL SERVICE), Ltd. March 29, 1955 [April 2, 1954], No. 9123/55. Class 94(1). A device for protecting from superficial damage the sides of a coffin or the like consists of an envelope 10 of resilient material, such as foam rubber, for covering the sides, and a canvas sheath 15. The base 14 need not be protected and flaps 16, 17 are drawn over it by lacing through a cord 18.
Patent GB-209650-A (GB)
Title: Improvements in or relating to locomotive axle-box guides
IPC: B61F15/04
Filed: 1923-04-03
Abstract: 209,650. Rawdon, E. W., and Roberts, E. M. April 3, 1923. Axle-bearing guiding arrangements have a wedge interposed between the axle box body and the horn-plate and means operable by the axlebox for adjusting the wedge. The wedge 31 between the axle-box 30 and horn-plate 28 is recessed to receive the head of the bolt 32 screwed. through the brace member 29. A ratchet wheel 33 bears on the member 29 and is slidably engaged by the bolt 32 by flats 41. A lug 35 on the axle-box forms the pivot of pawls 36, 37, 38 of graduated lengths arranged so that one pawl is always in engagement with one tooth of the ratchet. A locking dog 39 pivoted to the horn plate engages the tops of the ratchet teeth by its serrated edge 40 and prevents retrograde movement of the ratchet wheel. Vertical movement of the axle-box body does not affect the ratchet, but horizontal movement due to wear revolves the ratchet wheel and tightens the wedge 31. Instead of the graduated pawls, one pawl only may be used.