baber/WOPTO huggingface dataset:
Patent GB-656994-A (GB)
Title: Interpolymers of drying oils, monoalkenyl-aromatic hydrocarbons and divinylbenzene
IPC: C08F212/14
Filed: 1949-01-25
Abstract: Varnish resins are prepared by heating in the substantial absence of solvents, (a) a drying oil having less than 35 per cent of its olefinic linkages conjugated, (b) a polymerizable monoalkenyl aromatic hydrocarbon material comprising mainly styrene, and (c) divinylbenzene, the divinylbenzene and monoalkenyl material amounting to between 0.5 and 5 per cent and between 30 and 60 per cent, respectively, of the weight of polymerizable components.  With the styrene may be used smaller amounts of a -methyl styrene, ar-vinyl toluene and ar-ethyl vinyl benzene.  Suitable drying oils are linseed, soyabean, sardine and dehydrated castor oils or mixtures thereof, or mixtures of one or more of these with an oil of high conjugation, e.g. tung oil or oiticia oil, provided the average degree of conjugation is below 35.  Solvents are preferably completely absent, but minor amounts, e.g. up to 10 per cent of the starting materials of a solvent such as benzene, toluene, xylene and ethyl benzene, may be present. Polymerization is preferably effected at 100-200 DEG  C. in a closed vessel or in an inert atmosphere, in the presence of a peroxy catalyst, until at least 80 per cent of the alkenyl aromatic compounds are polymerized.  The products are clear resins, soluble in or compatible with unbodied linseed oil and soluble in, for example, the above-mentioned solvents and mixtures of aromatic solvents with mineral spirits.  Other additions, e.g. resins (including rosin), drying oils, driers, dyes and pigments, may be added.  The varnish films may be hardened rapidly (1-10 hours) by heating at 120 DEG  C. and are tack-free at temperatures of 150 DEG F. or higher.
Patent GB-1082633-A (GB)
Title: Flexible waterproof sheet materials
Inventor: KNIGHT JAMES PATRICK
IPC: B32B27/00
Filed: 1963-01-17
Abstract: 1,082,633. Laminates. F.A. (MEMBRANES) Ltd. April 16, 1964 [Jan. 17, 1963], No. 2085/63. Heading B5N. Flexible waterproof sheet material comprises a fibre of polyethylene terephthalate, coated on both sides with a layer of bitumen or bituminous material together with a glass fibre layer embedded in said bitumen or bituminous material on one or both sides of the film. The glass fibre layer may be in the form of a mat or tissue and may be reinforced by longitudinally extending glass fibre yarns. To make the material polyethylene terephthalate film is unwound from a roll into a bath of molten bitumen and contacted with a continuous mat of glass fibre tissue also immersed in the bath. The assembly is then passed between a pair of rollers and cooled. Talc may be applied to the faces of the material to prevent sticking when it is wound into a roll.
Patent GB-757741-A (GB)
Title: An improved driving belt and its method of manufacture
Inventor: KENNEY HARRY WESLEY
IPC: F16G5/08
Filed: 1954-01-23
Abstract: 757,741. V-belts. DAYTON RUBBER CO. Jan. 23, 1954, No. 2092/54. Class 80(1) A belt for engagement with V-pulleys, and at the same time for imparting a drive on to flat pulleys from its top or outer face 14a, Fig. 3, is made of rubber or like substance 10, 12 with re-inforcement 11 and a cover of fabric 13 on its sides and bottom surface only. The top surface 14a is left of the rubber substance and is finished smooth as by grinding. The edges of the top surface are beveled as at 15a. For grinding the top surfaces of the belts they are mounted under tension upon a drum at 48, Fig. 4, on a rotating shaft 32 and engaged by an abrasive wheel 18 which is traversed across the belts.
Patent GB-542551-A (GB)
Title: Improvements in and relating to footwear and the manufacture thereof
IPC: A43B17/14
Filed: 1941-02-17
Abstract: 542,551. Rubber sheets. DUNLOP RUBBER CO., Ltd., and DAVIES, R. C. Feb. 17, 1941, No. 2121. [Class 70] [Also in Group VII] A boot insole comprises a basic layer of reinforced vulcanized sponge rubber and an upper layer of more resilient and less reinforced sponge rubber, the two layers being vulcanized together at such a temperature as to leave the upper layer capable of assuming the contour of the foot in wear, which contour, in time, becomes permanent. As examples, the basic layer consists of rubber 100, sulphur 5, reinforcing fillers 30, softeners 26, anti-oxidants 1, zinc oxide 2, mercaptobenzothiazole .54, zinc diethyldithiocarbamate .4, which is inflated to twice its volume, while the upper layer consists of rubber 100, sulphur 2.64, colour 1, softener 3, anti-oxidant .5, zinc oxide 2, mercaptobenzothiazole 1.5, and this is inflated to two and a half times its volume.
Patent GB-253454-A (GB)
Title: Improvements in hydraulic power transmission
IPC: F16H39/36
Filed: 1926-01-26
Abstract: 253,454. Dunn, W. C. Jan. 26, 1926. Clutches and speed-varying mechanism. - A hydraulic power transmission gear comprises a driving shaft 15, Figs. 1 and 5, having a pinion 21 meshing with pinions 22, 23 enclosed in a casing 20, a driven shaft 16 having a pinion 32 meshing with a pinion 33 journaled in a fixed outer casing 19, a casing 35, and an axially movable controlling valve 47, the casings 20, 35 and valve 47 being mounted to rotate with the driven shaft. Direct drive is obtained when the valve is disposed as shown in Fig. 1, the passages 26, 27 being closed, and the gears 32, 33 drawing liquid through an aperture 45 and delivering it through an aperture 46. A positive connection is obtained by moving the valve so that pins 47<a> engage recesses 21<a> in the pinion 21. Lower speeds, no drive and a reverse drive are obtained in succession as the valve is moved to the right-
Patent GB-982914-A (GB)
Title: Improvements in or relating to polyimides
IPC: H01B3/30
Filed: 1963-01-18
Abstract: A polyimide has the recurring unit <FORM:0982914/C3/1> where R is a tetravalent radical containing at least one ring of 6 carbon atoms having benzenoid unsaturation, the four carbonyl groups being attached directly to separate carbon atoms in a ring of the R radical and each pair of carbonyl groups being attached to adjacent carbon atoms in a ring of the R radical, and R1 is a divalent benzenoid radicle of the formula <FORM:0982914/C3/2> , <FORM:0982914/C3/3> or <FORM:0982914/C3/4> where R11 is <FORM:0982914/C3/5> where R111 and R1111 are alkyl or aryl groups. The polyimides may be prepared via the corresponding polyamide acids. Many polyimide-forming reactants are specified.  The examples describe the preparation of polyimides from pyromellitic dianhydride and:-(1) bis(4-aminophenyl) diethyl silane; and (2) (a) phenyl-bis-(4-aminophenyl) phosphine oxide; (b) bis-(4: aminophenyl) - N - methylamine; (c) bis - (4 -aminophenyl) diethyl siloxane, and (d) bis-(4-aminophenyl) phenyl phosphonate. Specifications 903,272 and 980,274 also are referred to.ALSO:A substrate is coated with a polyimide having the recurring group: <FORM:0982914/B1-B2/1> where R is a tetravalent radical containing at least one ring of 6 carbon atoms having benzeneoid unsaturation, the four carbonyl groups being attached directly to separate carbon atoms in a ring of the R radical and each pair of carbonyl groups being attached to adjacent carbon atoms in a ring of the R radical, and R1 is a divalent benzenoid radical of the formula: <FORM:0982914/B1-B2/2> where R11 is:  <FORM:0982914/B1-B2/3> where R111 and R1111 are alkyl or aryl groups.  The polyimides are made via the corresponding polyamide-acids which may be applied in solution to the substrates and cured in situ. Specified substrates are copper, brass, aluminium or steel in the form of sheets, wires or screening; glass in the form of sheets, fibres, foams or fabrics; wood, paper; polyethylene, polypropylene, polystyrene, polyethylene terephthalate; polytetrafluoroethylene, copolymers of tetrafluoroethylene with hexafluoropropylene and polyurethanes in the form of sheets, fibres, foams, fabrics, or screening.  In Example 1, glass plates are coated by casting with a polyamide-acid made from bis-(4-aminophenyl)diethyl silane and pyromellitic dianhydride, the coating being converted to polyimide by heating. Specifications 903,272 and 980,274 also are referred to.
Patent GB-569405-A (GB)
Title: Purification of hydrocarbons by azeotropic distillation
IPC: C07C7/06
Filed: 1942-02-23
Abstract: 569,405. Distilling aromatic hydrocarbons. WOODALL-DUCKHAM (1920), Ltd. and SPIERS, H. M. Feb. 23, 1942, No. 2364. [Class 32] In the recovery of an aromatic hydrocarbon boiling below 150‹C. from a mixture thereof with non-aromatic hydrocarbons by azeotropic distillation of the mixture with an entraining agent comprising water and an aliphatic alcohol containing not more than three carbon atoms in the molecule, in a column having a stripping and a rectifying section, the azeotropic mixture of aromatic hydrocarbon and water is withdrawn from the stripping section, the water is separated and added to the non-aromatic hydrocarbon-alcohol distillate withdrawn from the rectifying section in just sufficient amount to effect the separation of the non-aromatic hydrocarbons and the alcohol, and the water-alcohol mixture is returned to the column to provide the entrainer for carrying on the process. Toluene containing non-aromatic impurities is fed through pipe 1 to a column 2, make-up alcohol being fed through line 5. Purified toluene and water are withdrawn through cooler 6 to decanter 7 where the water is separated and passed to tank 9. The impurities and methyl alcohol pass overhead to condenser 10. Part of the condensate is recycled through line 11 as reflux the remainder passing to a washer 12 where it is mixed with water from tank 9 in sufficient amount to obtain separation of the mixture in a decanter 15 into an upper layer containing impurities and water which is fed through line 18 to column 16 and a lower alcoholic acqueous layer which is returned to the column 2 through line 4 to provide the necessary entrainer. In the column 16 the hydrocarbon impurities are removed at the base through coil 19 while a distillate rich in alcohol is recovered from the top of the column and is condensed in cooler 20 and then passed to decanter 21 from which the alcoholic layer is recycled (a) as reflux to column 16, (b) through the line 23 to join the main body of distillate from column 2, (c) through line 24 to mix with the feed entering column 2. Specification 536,172 is referred to.
Patent GB-1365056-A (GB)
Title: Synthetic resin compositions based on polyvinylidene fluoride
IPC: C08L27/14
Filed: 1973-01-17
Abstract: 1365056 Polyvinylidene fluoride and polyamide composition SOLVAY & CIE 17 Jan 1973 [18 Jan 1972] 2465/73 Headings C3R and C3P A composition comprises polyvinylidene fluoride and 30-55% wt. of a polyamide derived from terephthalic acid and a branched aliphatic diamine, having a C 6  main chain, e.g. various methyl-, trimethyl- and methylethylhexamethylenediamines. Also present may be # 40% wt. of a pigment, e.g. TiO 2 , based on the polymer mixture. It is stated that similar compositions employing polyamides 6 and 11 have been prepared, but the constituents are incompatible. Contrasting examples describe compositions comprising respectively 80% and 20% of polyvinylidene fluoride and 20% and 80% branded aliphatic diamine with C 6  main chain. Use.-Pipes.
Patent GB-135701-A (GB)
Title: Improved Apparatus for Reducing the Recoil of Guns.
Inventor: CRAIG ROBERT ANNESLEY
IPC: F41A21/36
Filed: 1919-01-31
Abstract: 135,701. Craig, R. A., Moore, H., Mather, R., and Hall, H. F. Jan. 31, 1919. Machine guns.-A recoildiminishing muzzle - attach - ment consists in a conical chamber a into which is screwed a plug b having a projectile passage c. A curved rearward surface of the plug terminates in a knife-edge d and leads the gases to lateral ports e provided with a reflecting surface f and a flange g to prevent back-blast.
Patent GB-427665-A (GB)
Title: Improvements in and relating to pipe joints or couplings
IPC: F16L19/04
Filed: 1934-01-24
Abstract: 427,665. Pipe joints. HERZMARK, N., 44, Rue Vitruve, Paris. Jan. 24, 1934, No. 2481. [Class 99 (i)] In a pipe joint of the kind in which the flared pipe ends b<1> c1 are drawn up on a double conical ferrule a, the coupling members d, e are interengaged or connected otherwise than by the ferrule, and engage the flared pipe ends only at a part below their maximum diameter, the bore of the coupling members being tapered at a smaller angle than the ferrule. The bore of the coupling member may have sharp-edged annular ribs to bite into soft-metal pipes. For hard-metal pipes the flared ends have a smaller angle than the ferrule so that the end of the pipe bites into the ferrule or a soft-metal coating thereon, or a metal washer is compressed between the ferrule and the flared pipe end, or a narrow internal flange is formed on the pipe end. Specification 416,523 is referred to.
Patent GB-664043-A (GB)
Title: Improvements in starting circuits for fluorescent electric lamps
IPC: H05B41/06
Filed: 1949-01-28
Abstract: 664,043. Control systems for space discharge lamps. SIEMENS ELECTRIC LAMPS & SUPPLIES, Ltd., and FREESTONE, R. Jan. 28, 1949, No. 2487/49. Class 38 (iv). A starting arrangement for one or a plurality of series-connected fluorescent lamps L1, L2 having filamentary electrodes comprises a nominally closed contact ts of a thermal switch in the circuit connecting the two electrodes in series which contact is opened by a heating winding h connected in the lamp supply circuit to initiate the usual starting voltage from the inductance CH, the series circuit being maintained open by the contact b1 of an electromagnet relay B responsive to the voltage across the lamp and which operates when the lamp discharge starts. The heater h may be shortcircuited when the electromagnetic relay operates. In the case of series-connected lamps each is controlled by further contacts b2 on the electromagnetic relay. The coil of the electromagnetic relay may be under the control of the contact a1 of a further relay A responsive in the lamp supply circuit to prevent operation of the electromagnet relay B in the event of a lamp being absent, or the contacts of the thermal relay being open. The coil of relay A may be shunted across a part of the ballast resistance R.
Patent GB-236837-A (GB)
Title: Arrangement for cleaning the drawing holes of multiple wire drawing machines
IPC: B21C3/02
Filed: 1925-01-28
Abstract: 236,837. Nacken, W. Jan. 28, 1925. Drawing wire.-A multiple-die wire drawing machine is provided with means for cleaning the dies by causing the wire to enter each die at an angle to the die axis, the angle rotating continuously about the die axis. The wire may be guided, prior to its entry in the die by an eye g in the end of a bent rod f passing through a ball bearing and oscillated by an eccentric d. A separate eccentric may be provided for each wireguide, or the wire-guides may be connected to a line shaft rocked by one or two eccentrics. The wire-guides may be caused to trace out circular paths of progressively increasing diameter by connecting them to a shaft i, Fig. 4, mounted in a stationary bearing at one end and in a rotating disc m at the other. In machines where the wire is caused to reciprocate laterally to distribute the wear of the drawing drum, the circular motion of the wire-guide is superadded to the lateral reciprocation, as shown in Fig. 6. A high-pressure liquid jet may also be provided for washing through the dies.
Patent GB-1078222-A (GB)
Title: Tablet coating
IPC: A61K9/32
Filed: 1965-01-20
Abstract: Tablets are coated by spraying with a melt comprising 60-90% by wt. polyethylene glycol of average M.W. 1000-9000 and 10-40% by wt. of a non-toxic synthetic or natural resin or gum or sucrose benzoate, or mixtures thereof, miscible in a molten state with the polyethylene glycol at 45-200 DEG C.  Specified resins and gums include shellac, gum sandarac, mastic, copal, dammar, lignin, rosin, modified resins, e.g. the glycerol, pentaerythritol, and ethylene glycol esters of rosin or hydrogenated resins, and rosin modified maleates, alkyd resins, polyvinyl alcohols, polyvinyl pyrrolidones, polyacrylamides, polyacrylates, polyethylene oxides, chitin, larch arabogalactan, dextrans, starch amylose, starch amylopectin.  Dyes, pigments, and plasticisers, e.g. cetyl alcohols, castor oil, polyethylene glycols having an average M.W. below 1000, sucrose acetate isobutyrate may be added to the melt.
Patent GB-376246-A (GB)
Title: Improvements in washing machines
IPC: D06F13/00
Filed: 1931-01-27
Abstract: 376,246. Washing machines. ROBINSON, J., 22, Scorton Avenue, and ROBINSON, J. B., 60, Garstang Avenue, both in Bolton. Jan. 27, 1931, No. 2600. [Class 138 (ii).] The dolly of a washing-machine which is oscillated within a container a about a vertical axis and is stopped at the ends of its stroke by boards c comprises a paddle j or two or more superimposed and spaced paddles of which two m, j i are shown and each paddle is formed with separate or connected cavities k, Fig. 7, which taper upwardly from their downwardly pointing mouths. The paddles are carried by a shaft g which is bent as shown and is supported in bearings e, f in the pivoted cover d so as to be slidable therein. The uppermost paddle, or the only paddle when one alone is used, is formed with its upper face inclined steeply downwardly from the shaft on both sides so that clothes &c. will slide off this surface when the dolly is raised, and the cover is shaped correspondingly so that a minimum sized aperture y in the container only is necessary. The dolly and container are made of such relative sizes that when the dolly is in its lowest position the minimum clearance is provided between the dolly and container. A shoot r is provided with straps 7 so as to be slidably and pivotally mounted on a rod s carried by brackets q to which a wringer may be clamped, whereby liquid wrung from the clothes &c. may be discharged to either side. The upper ends of the legs u are connected by cranked bars v between which the bottom of the container is received and which prevent movement of the container when the apparatus is in use.
Patent GB-682496-A (GB)
Title: Process and means for treating liquid fuel before its injection into the working cylinder of internal combustion engines
IPC: F02M53/04
Filed: 1951-02-02
Abstract: 682,496. Liquid-fuel injection. INCONEX HANDELSGES. FUR INDUSTRIELLE PRODUKTE-KONSTRUKTIONEN-EXPORT. Feb. 2, 1951 [April 29, 1950], No. 2616/51. Class 7 (iii). Liquid fuel is atomized by imparting to the fuel, immediately before injection into the working cylinder of an internalcombustion engine, heat transferred thereto from the combustion chamber by means of a heater so designed that the temperature of the fuel is raised above its vaporizing point at the pressure existing in the cylinder during injection, and simultaneously applying sufficient pressure to the fuel to prevent it from vaporizing before injection, whereby on injection the sudden drop in pressure causes rapid conversion of part of the fuel into vapour and dispersion of the remainder. As shown, a heat-exchanger 8 comprising heat-conducting ribs 8' projects into a cylinder 10, a housing 16 for the heater 8 being detachably secured to the cylinder cover. Fuel supplied by a plunger 26 actuated by a cam 28 passes through a non- return valve 24 into a pipe 22 leading to the housing. 16 and enters the cylinder through a spring-pressed conical valve 12, the pressure in the heater 8 being 5 to 10 atmospheres above that in the cylinder at the time of injection. The injection pressure increases gradually and may be 20 to 26 atmospheres. An electric heating-coil may be provided for supplying auxiliary heat or for starting. The valve face may diverge slightly from its seat to provide a gap between them when the valve is closed. thus increasing the heating surface, Fig. 5 (not shown). In Fig. 6 (not shown), the valve is replaced by a needle valve.
Patent GB-224772-A (GB)
Title: Improvements relating to systems of electrical distribution
IPC: H02J3/34
Filed: 1924-02-01
Abstract: 224,772. Le Tall, F. W., (Westinghouse Electric & Manufacturing Co.). Feb. 1, 1924. Equalizing load on generator; systems depending on the use of two or more machines.- For interchanging electric energy between two alternating current distribution circuits, according to the load conditions, a motor-generator set comprising an induction motor 6 and a synchronous generator 7 interlinks the two circuits 2, 9. The circuits may be of high and low voltage respectively and may be supplied through separate turbine-generator sets 1, 12. If the turbine set in the lower voltage circuit loses power, or if the frequency falls below the normal, part of the load is taken up by the motor generator.
Patent GB-701141-A (GB)
Title: Improvements in fluid heater walls
IPC: D21C11/12
Filed: 1952-02-01
Abstract: 701,141. Furnace walls. BABCOCK & WILCOX, Ltd. Feb. 1, 1952 [Feb. 2, 1951], No. 2699/52. Class 51 (1) A furnace wall comprises a row of upright tubes 25 provided with members 43 secured to the tubes and having parts which diverge in a direction away from the tubes and which extend into recesses 51 in tiles 31. the recesses having side walls which converge in a direction towards the tubes, locking means being provided in the recesses to prevent disengagement of the tiles and the members 43. The locking means comprises cement filling 57 in the spaces between the members 43 and the side walls of the recesses.
Patent GB-810262-A (GB)
Title: Improvements in or relating to heat exchangers
Inventor: TILLOTSON ARTHUR BLAND
IPC: F22D1/16
Filed: 1956-01-27
Abstract: 810,262. Cleaning heat-exchangers. GREEN & SON Ltd., E. Dec. 31, 1956 [Jan. 27, 1956], No. 2704/56. Class 99(2). In a heat-exchanger for steam boilers, wash water is prevented from issuing with the gases by dividing the heat-exchanger into two separate compartments 1, 2 by a vertical partition plate 3 each compartment having its own water sprayer 7 or 8 and isolating damper 9 or 10 at the outlets. The vertical partition plate 3 extends below the gas outlet 4, the drainage hopper and drain 5, 6 respectively being below the partition. When compartment 1 is to be washed its outlet damper 9 is closed and the damper 10 of compartment 2 is fully opened so that the gases flowing down compartment 1 are constrained to make 180 degrees turn at the end of partition 3 to outlet 10 and the wash water from sprayer 7 is thereby separated and flows into the drain 6. When compartment 2 is to be washed, the damper 10 is closed and damper 9 opened.
Patent GB-1248795-A (GB)
Title: Rotary regenerative heat exchanger
Inventor: POOLE JOSEPH JOHN
IPC: F28D11/00
Filed: 1969-01-17
Abstract: 1,248,795. Thermal regenerators. LEYLAND GAS TURBINES Ltd. 14 Jan., 1970 [17 Jan., 1969], No. 2764/69. Heading F4K. [Also in Division F2] In a rotary regenerator comprising a matrix (1, Fig. 1) surrounded by a toothed annulus 2 driven from a driving shaft 7 through pinions 4 and 6 by a pinion 5 whose teeth mesh with the teeth 3 of the annulus 2, an arrangement is provided whereby the driving pinion 5 is always maintained in constant mesh with the annulus 2 irrespective of annulus movement due e.g. to expansion and contraction. The pinion 5 is mounted on a lay-shaft 10 which is parallel with shaft 7 and supported in a pair of plates 11, 12 freely pivotable on the driving shaft 7. The layshaft also carries a roller follower 15 maintained in rolling engagement with an annular roller surface 16 on the annulus 2. The diameter of the surface 16 is equal to the annulus pitch circle diameter and the roller follower diameter is equal to the pinion 5 pitch circle diameter. A spacer block 13 and bolts 14 connect the plates 11, 12 together. Either a corrugated strip (17, Fig. 1) or a spirally wound spring strip is used to transmit the driving torque from the annulus to the matrix.