baber/WOPTO huggingface dataset:
Patent GB-1180423-A (GB)
Title: New Water-Soluble Monoazo Dyestuffs and process for preparing them
IPC: C09B62/51
Filed: 1967-05-03
Abstract: 1,180,423. Water-soluble monoazo dyes. PARBWERKE HOECHST A.G. 3 May, 1967 [3 May, 1966], No. 20461/67. Heading C4P. The invention comprises water-soluble monoazo dyes which in the form of the free acid have the general formula wherein A is a phenyl radical substituted in the ortho and/or para position to the azo group by an alkoxy, aralkoxy or aryloxy group, or by an acylamino group in the para position, and which may further contain one or more alkyl, alkoxy, and/or nitro groups, or a naphthalene radical, B is a benzene, naphthalene or aromatic-heterocyclic radical, m 1  and m 2  are integers from 0 to 2 and m 1 +m 2  is 1 or 2, n 1  and n 2  are 0 or 1 and n 1 +n 2  is 1 or 2, X is -SO 2 -CH 2 CH 2 -Y or -SO 2 -CH = CH 2  and Y is halogen, alkyl sulphonic acid ester, aryl sulphonic acid ester, acyloxy, phenoxy, dialkylamino, thiosulphuric acid ester or sulphuric acid ester group. They are prepared by diazotization and coupling and the group Y may also be introduced into a corresponding monoazo dye by reacting dyestuffs wherein Y is -SO 2 CH = CH 2  with a salt of thiosulphuric acid, or a dialkylamine under alkaline conditions. Further the group -SO 2 CH 2 CH 2 Y may be converted to SO 2 CH = CH 2  in alkali. The dyes dye cellulose, wool, silk, and polyamide fibres in yellow and greenish-yellow shades.
Patent GB-381970-A (GB)
Title: Improvements in or relating to laundry presses
IPC: D06F71/32
Filed: 1931-07-17
Abstract: 381,970. Laundry presses. KAHN, L. M., 55, W. 11th Street, New York, U.S.A. July 17, 1931, No. 20551. Convention date, July 19, 1930. [Class 138 (ii).] Means are provided in a laundry press for oscillating the head and buck, when in contact with the work, symmetrically on opposite sides of the position of contact in such a way that the oscillation results in relative rectilinear movement of these members. For this purpose the head and buck are angularly oscillated about parallel axes. One or both members may be oscillated positively ; in the former case the oscillation of one member is imparted to the other. As shown in Fig. 1, the padded buck 14 is spring-pressed away from its support 13 which is secured to a transverse shaft 17 rotatably mounted in a bracket 12 secured to the frame 10. The bracket is provided with projections 19 between which and the under surface of the horizontal portion of the support 13 springs 21 are confined which tend to keep the buck normally horizontal. The press head 28, which is heated by a steam pipe 67, is provided with an upstanding bracket 27 secured to a transverse shaft 26 which is carried in a sleeve 25 secured to the head lever 23, springs 31 being confined between the head and projections 29 on the head lever. The shaft 17 is provided with a depending arm 18 of which the bifurcated lower end, Fig. 3, is engaged between two collars 49 secured to a rod 48 common to two pistons 47 which work in cylinders 45, 46. Lugs 54 on the collars 49 engage a tappet 53 on a rod 51b common to two slide valves 51a which work in cylinders 51, 52 and which control the supply of compressed air from a pipe 55 to the cylinders 45, 46 alternately and, through pipes 65, to each of two other cylinders 60 alternately. A rod 62 common to the pistons 61 working in the cylinders 60 is provided with collars 63 which engage the bifurcated lower ends of a member 32 secured to the shaft 26, Fig. 1. When the operator opens a supply valve 66 after the press has been closed the fluid pressure, passing through the pipe 55 to the cylinders alternately, rocks the contacting press members about their pivots and, owing to the distance between the pivots, the press members are relatively reciprocated along their length, the reciprocation continuing for as long as the valve 66 is held open. The valve 66 is controlled independently of the valve 44 which controls the fluid-pressure supply to the piston and cylinder mechanism 35, 36 which operates the press-closing toggle 39, 40. In a modification wherein the press members are pivoted about axes parallel to their length the lower member only is positively operated by the pressure fluid, the operation thereof resulting in a transverse relative movement between the two members. The buck may be provided with an upstanding portion shaped to correspond to the neck-band of a shirt, the press head being provided with a coacting cut-out portion 72 shaped according to whether the press members are relatively reciprocated longitudinally or transversely.
Patent GB-148778-A (GB)
Title: Improvements in and relating to the prevention of incrustation on the walls of steamboilers, feed heaters, and the like by electrolysis
IPC: C02F1/30
Filed: 1920-07-10
Abstract: 148,778. Rummel, O. April 24, 1918, [Convention date]. Incrustation, preventing. - Incrustation of boilers, feed heaters, &c. is prevented by adding to the water in a finely divided state a conducting substance such as graphite or carbon, or metals such as zinc or aluminium, and connecting the walls of the boiler &c. to to the negative pole of a source of electricity, an electrode connected to the positive pole being immersed in the water. The finely divided substance may be obtained by means of a high-pressure steam jet or by forming an arc between electrodes of the substance immersed in water whereby a colloidal solution of the substance is obtained.
Patent GB-965597-A (GB)
Title: Improvements in loudspeakers
Inventor: FINCHAM LAWRENCE REGINALD
IPC: H04R7/02
Filed: 1962-05-29
Abstract: 965,597. Loud-speaker diaphragms. GOODMANS INDUSTRIES Ltd. March 7, 1963 [May 29, 1962], No. 20613/62. Heading H4J. A moving coil loud-speaker has a diaphragm cone made wholly or in part of expanded polyethylene. If the cone is wholly of expanded polyethylene it may be supported by an integral peripheral suspension, the latter being bonded to the chassis. The peripheral portion may be radially extended to serve as an airtight resilient gasket for the loud-speaker frame. Alternatively, the expanded polyethylene cone may be covered on each side with a paper layer to form a sandwich construction, in which case the peripheral suspension is formed from one of the paper layers or from the polyethylene. Alternatively, a paper cone is covered on both surfaces by layers of polyethylene which are joined at the edge of the cone, the polyethylene being extended to form the peripheral suspension. In another embodiment a paper cone with integral peripheral suspension has a cone of expanded polyethylene bonded to its front surface. This may be made by resting the paper cone on a similarly shaped but apertured metal support and applying adhesive to the front surface of the paper cone. A flat circular sheet of expanded polyethylene is placed over the front of the cone and clamped all round its edges so that no air can pass between the paper cone and the sheet. Adhesive may be applied to the inside of this sheet as well as or instead of the paper cone. After heating of the sheet, vacuum is applied through the apertures in the support whereby the sheet is drawn into contact with the cone and the two are bonded by the adhesive. Alternatively, the sheet of expanded polyethylene is initially in the form of a disc from which a segment has been cut. It can thus be readily formed into a cone and pressed into contact with the adhesive-covered paper cone.
Patent GB-181261-A (GB)
Title: Improvements in valves or taps
IPC: F16K41/12
Filed: 1921-08-02
Abstract: 181,261. Mathews, C. J. A. Aug. 2, 1921. Diaphragm valves. -A screw-operated valve of type in which a champered valve member B is mounted on a diaphragm E gripped between two parts of the casing and acted on by a spring arranged beneath the valve has the lower end of the screwed actuating spindle provided with a conical surface. I adapted to co-operate with a conical seat formed on the inner surface of the cover. The inside of the cover is curved to correspond with the normal curvature of the diaphragm when the valve is open.
Patent GB-499769-A (GB)
Title: Improvements in or relating to the production of artificial threads, filaments, bands, films or the like containing proteins
IPC: D01F4/00
Filed: 1937-07-27
Abstract: Artificial filaments, threads, films, &c. are made from alkali solutions of casein &c. with the use of an acid precipitating-bath containing a glue-precipitating substance, namely, an aromatic or hydro-aromatic sulphonic acid or a condensation product of such an acid and an aldehyde; the precipitated threads are hardened by formaldehyde &c.  The glue-precipitating substance may be a condensation product of an hydroxy, amino or chloro derivative of the aromatic acid and an aldehyde, or it may be a mono- or poly-sulphonic acid of an aromatic or hydro-aromatic hydrocarbon or an oxygen-containing derivative thereof; in particular, it may be cresol sulphonic acid, naphthalene sulphonic acid, tetraline sulphonic acid, tolueneisopropyl sulphonic acid, phenol sulphonic acid, cyclo-hexanone sulphonic acid and benzoic sulphonic acid. The sulphonic acid and condensation product may be employed in the crude state.  The precipitating-bath may also contain water-soluble salts and glycerine, sugar, &c.  In examples, baths are used containing (1) sulphuric acid, zinc sulphate and the condensation product of formaldehyde and cresol sulphonic acid; (2) sulphuric acid sodium sulphate, zinc sulphate and cresol sulphonic acid.  Specification 482,628 is referred to.
Patent GB-985451-A (GB)
Title: Improvements relating to textile articles
IPC: D03D15/567
Filed: 1962-05-30
Abstract: A process for the production of fabrics having a crepe appearance comprises heating to at least 80 DEG C. a fabric in which polyester thread of shrinkage capacity at 100 DEG C. of at least 15% constitutes substantially half the weight of the threads in the warp and weft together, which are in a repetition of at most 4, the remainder being of thread of lower shrinkage capacity.  The threads other than the polyester threads of shrinkage capacity at least 15% may be already shrunk polyester or polyamide yarns or yarns of natural silk.  The polyester threads may be threads of polyethylene terephthalate and the fabric may be heated in boiling water or an aqueous desizing bath.  The final appearance of the fabric may be influenced by varying the total count, the filament count, twist, filament cross-section (circular, trilobal, hollow &c.) and lustre of the threads, particularly those with high shrinkage.  These latter may be in juxtaposition with the other threads or may be used plied with another thread as a warp and/or as a weft.  Specification 896,272 is referred to.
Patent GB-1457028-A (GB)
Title: Process for the removal of oxides of sulphur from a gaseous stream
IPC: C01F5/42
Filed: 1974-05-13
Abstract: 1457028 Sulphur oxide removal DRAVO CORP 13 May 1974 [14 May 1973] 20964/74 Heading C1A Sulphur oxides are removed from a gas stream, e.g. that resulting from the burning of a sulphur-containing fuel, by contacting in a scrubberunitwith an aqueous liquor containing (a) calcium salts and having (b) a magnesium ion concentration of 250-5000 ppm and wherein a portion of the scrubber effluent is recycled to the scrubber and MgO added to provide the magnesium in concentration of 250-5000 ppm and an aqueous liquor pH of 5À5 to 10À0 on entering the scrubber. The MgO can be added to the calcium-salt-containing liquor as a burnt lime composition containing calcium oxide and from 1À5-7 percent of MgO.
Patent GB-723643-A (GB)
Title: Improvements relating to the manufacture of thermoplastic compositions
Inventor: HOGG WILFRID HENRY
IPC: C08J3/18
Filed: 1951-08-01
Abstract: Particulate thermoplastic synthetic resin compositions containing absorbed plasticizer are made by spreading a paste of the finely divided resin and a plasticizer as a thin layer on a support, e.g. an endless steel belt, heating the paste, e.g. by infra-red radiation, without agitation to effect absorption of the plasticizer by the resin and to convert the paste into a friable solid sheet and disintegrating the sheet.  The compositions may include pigments and fillers which may be added prior to heating. The resin may be polyvinyl chloride and copolymers of vinyl chloride with vinyl acetate and/or vinylidene chloride.  The plasticizer may be tricresyl phosphate or dibutyl phthalate.  The compositions may be used for making moulded articles by heating at 150 DEG  to 180 DEG  C. under pressure or for making sheet material by spreading the composition on a movable support, passing the support between calendar rolls at a temperature of 150 DEG  to 180 DEG  C. and separating if desired the sheet from the support. Specification 723,644, [Group VIII], is referred to.
Patent GB-562023-A (GB)
Title: Improvements in or relating to collapsible projection screens
IPC: G03B21/58
Filed: 1942-12-02
Abstract: 562,023. Projection screens. STABLEFORD, J. L. Dec. 2, 1942, No. 21090/43. Divided out of 562,013. [Class 97 (i)] One or more bars 7 are threaded through aperture in the front and rear walls of a box 4 housing an ex tensible screen 1 to stabilize the screen when ex tended for use the apertures are arranged betweer the ends of the box and the box screen, &c., may be as described ir Specification 562,013. The bars may have straight parallel-sided central parts 8 and downwardly directed end portions 9 having curved ends 10 to engage the support for the box ; each may be a flat strip, threaded with its width vertical and may have a stop 15 to engage the front of the box. Metal bearing-pieces 14 may be provided on the box above the slots, and an anchorage bracket 18 for springs 19, controlling screen-supporting struts 5, may also provide a bearing surface. The bars may be housed in brackets, in the position 17 within the box, when not in use. Specification 543,105 is referred to. -
Patent GB-149261-A (GB)
Title: Carburetter to utilise petroleum to feed an internal combustion engine
IPC: F02M17/14
Filed: 1920-07-12
Abstract: 149,261. Payenchet, R. March 29, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Spray carburettors; vaporizers, external.-The delivery of heavy fuel from a nozzle 1 is controlled by a valve 6 carried on a rod 13, which is attached to a perforated plate 9 subjected to engine suction. A spring 11 is placed between a cone 8 on the rod 13 and a perforated disk 12 integral with a suction-actuated supplementary air valve 14; the opening of the fuel valve is therefore dependent on the position of the valve 14 and of the plate. Primary air is admitted by the orifice 22 to the annular chamber 21. The mixture passes through the gauze 23 to a heater consisting of a number of tubes outside of which exhaust gases or hot water circulates.
Patent GB-1393507-A (GB)
Title: Surface cooler
IPC: B60H1/32
Filed: 1973-05-04
Abstract: 1393507 Radiators for aircraft UNITED AIRCRAFT PRODUCTS Inc 4 May 1973 [30 May 1972] 21296/73 Headings F4S and F4U A surface cooler 11 mounted on the structural surface 10 of an aircraft, e.g. a pod suspended from a wing, comprises an assembly of spaced apart arcuate plates 10a, 16, 17 arranged to define first and second passages respectively for the flow of cooling air and liquid to be cooled. The air passage is open ended and contains a corrugated fin strip 13, cooling air being forced through this passage by the movement of the aircraft. An arrangement of strips 34, 35, 36 and 37 and inclined baffle plate 38 located at the leading end of the cooler serves to guide high energy cooling air into the inlet end of the air passage while diverting the relatively low energy air adjacent the surface 10 away from the inlet. The flow passage for liquid to be cooled is closed at its ends by suitably slotted tubular manifolds 22 and 23 and contains a corrugated fin strip 19. Liquid to be cooled from an internal heat transfer system within the pod is passed through the surface cooler and is then led back into the pod for reuse. Means to vent a third fluid, e.g. steam from a water boiler in the pod, is mounted at the trailing end of the cooler. The means comprises a pair of diverging plates (43 and 44, Fig. 6, not shown) defining a negative pressure chamber (45) which communicates with the interior of the pod via an opening (55, Fig. 7, not shown).
Patent GB-997312-A (GB)
Title: A process for the production of vinyl phosphorodithioates
IPC: C07F9/173
Filed: 1962-06-01
Abstract: Vinyl phosphorodithioates of the general formula <FORM:0997312/C2/1> in which R is an alkyl group having 1 to 6 carbon atoms are prepared by reacting at super-atmospheric pressure and at 50 DEG  to 250 DEG C. substantially equimolar amounts of acetylene and a o,o-dialkyl phosphorodithioic acid of the formula <FORM:0997312/C2/2> in the presence of a free radical catalyst and in an inert organic solvent. The pressure may be from 100 to 500 p.s.i.  The catalyst may be ditert-butyl peroxide, benzoyl peroxide or azobisisobutyronitrile.
Patent GB-1408361-A (GB)
Title: Water-dispersible copolymer powder
IPC: C08J3/12
Filed: 1973-05-04
Abstract: 1408361 Vinyl ester copolymer powders HOECHST AG 4 May 1973 [5 May 1972] 21355/73 Heading C3P A water dispersible powdered copolymer is prepared by copolymerizing a vinyl ester and an acrylamide of the formula in which X is H or -CH 3 , Y is H or -CH 2 OZ, and Z is H, alkyl or acyl, each having up to 4 carbon atoms, in an emulsifier-free aqueous dispersion, and subsequently drying the dispersion to form a powder. Ethylene may be additionally copolymerized. Drying may be effected by freeze-drying, drum drying or fluidized bed spray granulation. The latter method may utilize air or nitrogen as the drying gas, which may be passed into the drying tower at a temperature of 90-110‹ C. A filler may be added before, during, or after drying. Specified monomers are: vinyl acetate, -laurate, -stearate, -butyrate and -propionate; and acrylamide, methacrylamide, N-methylol (meth) acrylamide, and (meth)acrylamide-N-methylolmethyl ether. In the example, vinyl acetate, acrylamide and ethylene are copolymerized in the absence of emulsifier, and spray dried.
Patent GB-1466493-A (GB)
Title: 1-h-tetrazole derivatives
IPC: C07D495/04
Filed: 1975-05-20
Abstract: 1466493 Tetrazolyl-substituted benzopyranopyridines, benzothiapyranopyridines and benzonaphthyridines YOSHITOMI PHARMACEUTICAL INDUSTRIES Ltd 20 May 1975 [28 May 1974] 21374/75 Heading C2C The invention comprises compounds of formula and their pharmaceutically acceptable salts, wherein P is a fused pyridine ring, A is CO, CH 2  or C 2-4  alkylidene; Y is O, S, NH or N(C 1-4  alkyl); X<SP>1</SP> and X<SP>2</SP> are each H, halogen, C 1-4  alkyl or alkoxy, or Ph (optionally substituted by halogen, CF 3  or C 1-4  alkyl or alkoxy); and R is H, C 1-4  alkyl [optionally substituted by OH, C 1-4  alkoxy, CO 2 H, (C 1-4  alkoxy)-carbonyl, NH 2 , (C 1-4  alkyl)NH, (C 1-4  alkyl) 2 N, piperidino, pyrrolidino, morpholino, piperazino or 4-(C 1-4  alkyl)piperazino] or C 2-4  alkenyl or alkynyl. In examples, these compounds are prepared by (1) forming the tetrazole ring by reacting the appropriate nitrile with NaN 3 , (2) (A=CO) forming the central ring of the polycyclic system by cyclizing a tetrazolylphenyl-Y-pyridinecarboxylic acid, or (3) introducing a substituent R into the tetrazole ring. Starting materials for which preparative details are given are 2-(p-Z-phenoxy)nicotinic acids, where Z is CN or tetrazolyl. Therapeutic compositions having anti-allergic activity comprise compounds of the above formula, which may be administered orally, parenterally, intranasally by aerosol, or topically.
Patent GB-948762-A (GB)
Title: Crosslinked polymeric compositions
Inventor: GREENWOOD TREVOR THOMAS
IPC: C08F291/18
Filed: 1959-06-22
Abstract: Infusible, cross-linked polymeric compositions are made by forming a blend of a polymer that normally suffers degradation when subjected to ionising radiation and a polymerizable compound containing at least two ethylenically unsaturated double bonds, one pair of carbon atoms, joined by a double bond being separated from the next pair by at least one carbon atom and subjecting the blend to a dose of ionising radiation which is greater than 2 megarads and, when the polymer is cellulose acetate, greater than 5 megarads.  Polymers specified are polymethyl methacrylate, polyisobutylene, cellulose acetate and cellulose acetobutyrate. Polymerizable compounds specified are diallyl sebacate and maleate and triallyl cyanurate, citrate and phosphate. The high energy radiation may be supplied by accelerated electrons, by neutrons deuterons or protons or by X- or gamma-rays. Specification 866,069 is referred to
Patent GB-1103175-A (GB)
Title: Sintering process for aluminium based alloys
Inventor: WALLACE LANCE
IPC: C22C1/04
Filed: 1966-05-13
Abstract: In a process of sintering Al based powder compacts, the green compacts are coated with a material that is non reactive and does not bond with Al at the sintering temperature and the compacts are then packed randomly in a furnace, the coating preventing the compacts from sticking together.  The Al based powders may contain Au, Zn, Mg, Mn, Sn and Mo and the coating is applied as a dispersion of graphite, MoS2, Al2O3, MgO, SiO2 in water acetone or a petroleum hydrocarbon such as kerosene.  The dispersion generally contains 5-25 parts weight of coating material per 100 parts weight of liquid.  In the examples green compacts containing Al, 4% Cu and 0.3% Mg are coated and then sintered in dissociated ammonia at 1660 DEG F. or 1800 DEG F.
Patent GB-951103-A (GB)
Title: Improvements relating to the production of unipolar transistors
Inventor: NEWMAN RONALD CHARLES
IPC: H01L21/00
Filed: 1959-06-23
Abstract: 951,103. Transistors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 10, 1960 [June 23, 1959], No. 21497/59. Heading H1K. A unipolar transistor is made from partially compensated semi-conductor material containing donors and acceptors, in the form of two monocrystals separated by a grain boundary or a monocrystal containing a line of dislocation, by the following steps. The semi-conductor is heated to diffuse the dominant impurity preferentially towards the line of dislocation or grain boundary where it reacts with another impurity to form a stable complex and thus becomes ineffective as an activator. As a result the immediately surrounding region in which the other impurity becomes dominant forms a PN junction with the main body. Ohmic contacts are made to the ends of this region and at least one contact to the main body to complete the transistor. In an embodiment the basic semiconductor material is P-type silicon containing phosphorus and aluminium as impurities. The material is grown from a suitably doped melt in a quartz crucible to ensure an adequate supply of oxygen in the silicon. When the body is heated to 1200-1250‹ C. in an evacuated or inert gas filled quartz container aluminium diffuses to the surface and to the dislocation and there forms a complex with oxygen. After the heating there is more phosphorus than aluminium in the regions adjacent the surface and grain boundary or dislocation which are therefore N-type. The N-type surface is ground off and the profile of the PN junction about the dislocation revealed by preferential etching of the P zone in specified acid etches. Ohmic contacts of gold antimony are then provided at the ends of the N region and aluminium contacts on the P region. The initial proportions of aluminium and phosphorus in the starting crystal are so adjusted that the aluminium depleted region formed about the dislocation or grain boundary is of higher resistivity than the rest of the body. The final zone configurations resulting from using a planar grain boundary and line dislocation respectively are shown in Figs. 2 and 3, respectively. Specifications 936,831, 936,832 and 936,833 are referred to.