baber/WOPTO huggingface dataset:
Patent GB-1108595-A (GB)
Title: Improvements relating to casting of high-voltage electrical insulating, etc.
Inventor: TOWNES AUBREY SMITH
IPC: B29C39/38
Filed: 1964-05-15
Abstract: 1,108,595. Casting resins. A. REYROLLE & CO. Ltd. 10 May, 1965 [15 May, 1964], No. 20425/64. Heading B5A. A solid casting incorporating a resin-impregnated insert, e.g. a high voltage insulation is made by placing the insert, e.g. a laminated paper winding in a mould for the casting, maintaining the mould under partial vacuum and filling it with casting resin so that the insert is impregnated expelling from the mould the resin not absorbed by the insert and then gravity filling the mould with a second resin and curing both resins simultaneously. The second resin may either be the same as the first but containing a filler, or a different resin. The apparatus for carrying out the process comprises an autoclave 10, heated by circulating hot oil through a lining 11, and connected through a valve 14 to a vacuum pump. A mould 20 mounted in the autoclave is connected through valves 32 and 33 to a resin container 30 by a passage 24 leading from the bottom of the mould cavity. In making an epoxy-resin-insulated transformer a paper strip 55 incorporating a high-voltage electrical winding and a conductor 56 are inserted into the mould. The autoclave is evacuated to 0À5 mm. Hg and heated for 11 hours. Epoxy resin mix is stirred by stirrer 43 in the container 30 under the same degree of partial vacuum. Valves 32, 33 are then opened and the epoxy resin passes through passage 24 to fill the mould and rise into reservoir 22. Valves 32, 33 are then closed and the vacuum is maintained in the autoclave for an hour after which bleed-off valve 16 is opened thereby the pressure rises to atmosphere. Valves 32, 33 are then opened and the resin not absorbed by the insert is returned by the differential pressure to the container 30. Valves 32, 33 are closed and bleed valve 41 opened to restore the pressure in the container to atmospheric. Filler and colouring agent are then stirred into the resin mix; the container and autoclave are evacuated to 0À5 mm. Hg and valves 32, 33 opened whereby the filled resin flows into the mould. Valves 32, 33 are closed and the resin cured after which the moulded transformer is removed from the mould by separation of its two halves 20A and 20B. When a different second resin is used, the container 30 is detached at seal 31 and replaced.
Patent GB-951220-A (GB)
Title: Improvements in textile cards
Inventor: CLEGG JAMES KERSHAW
IPC: D01G15/28
Filed: 1961-06-06
Abstract: 951,220. Carding engines. T. M. M. (RESEARCH) Ltd. June 6, 1962 [June 6, 1961], No. 20426/61. Heading D1N. Carding engine bends are supported by an adjustable bracket provided with inclined surfaces that serve as abutments for adjusting screws. The adjustable bracket 22 may be a sliding fit in a guide slot 31 in a fixed bracket 20 into which adjusting screws 33, 35 are threaded and which is screwed to the main cylinder bend 21. A flexible bend 13 is carried by a stud 23 engaging in a slot 24 in the adjustable bracket 22 in a manner to allow movement longitudinally of the flexible bend during adjustment. Such an arrangement is suitable for supporting the end of the bend, no allowance for longitudinal movement need be made for supports centrally of a flexible bend or for back or front concentric bends.
Patent GB-333356-A (GB)
Title: Improvements in or relating to apparatus for greasing surfaces
IPC: F16N7/12
Filed: 1929-07-04
Abstract: 333,356. Walker, L. July 4, 1929. Baking-trays and the like, greasing.-A device for greasing surfaces and more particularly for greasing culinary utensils consists of a reservoir 10 for the oil, a frame 13 suspended within the reservoir by stays 14 connecting it to a cover 11 having a flange 12 which engages within the reservoir, wicks 15 secured to the frame 13 and passing over the edge of the reservoir and an elastic support 17 to the outside walls of the reservoir, and felt or towelling 19 which covers the wicks 15 and the sides and bottom of the reservoir. The towelling or felt 19 is retained in position by an elastic member 20 fitted to the edges of the pad, and by hooks 21 on supports 18 which project from the base corners of the reservoir 10. The members 17, 20 may be made of coiled spring wire and trained around the supports 18. The cover 11 is retained in its closed position by a pin 25, or adjustable pressure may be exerted on the wicks 15 by the cover, to vary the rate of the oil flow, by screw locking means. A spring 22 which encircles telescopic guides 23, 24 tends to lift the cover sufficiently to remove the wicks from the oil. A handle 27 is provided on the cover 11 or on the standard 23. The standard 23 may be hollow and in registration with a hole in the base of the reservoir to relieve suction when the device is applied to a tin. The pad 19 may be in one piece or it may be in sections joined by strips of canvas which act as hinges. According to the Provisional Specification, the pad is secured by screws passing through the base of the reservoir. If desired, the screw holes may be used to feed oil to the main part of the pad. Washers may be provided on the cover to prevent leakage of oil.
Patent GB-673099-A (GB)
Title: Plough attachment for tractors
IPC: A01B3/26
Filed: 1949-08-08
Abstract: 673,099. Agricultural implements. RANSO MES. SIMS & JEFFERIES, Ltd., and HENDERSON, W. M. Nov. 6,1950 [Aug. 8, 1949], No. 20534/49. Class 6(i) A plough atttachment for a tractor comprises a transverse draw-bar 1, a plough body 5 pivotally attached to one end of the bar and a disc coulter pivotally attached to the opposite end of the bar. The disc coulter comprises a disc 12 co-axial with a drum 13 which follows the contour of the ground and is mounted on a vertically adjustable stalk 11. An adjustable connection 16, 20, between the plough and disc allows the disc to be set to counteract side pressure set up by the earth on the plough body 5.
Patent GB-948586-A (GB)
Title: Copolymers of n-[ªñ-trichloro-ª -alkoxyethyl]-amides of ª ,ª -unsaturated carboxylic acids
Inventor: WILHELM HANS
IPC: C08F20/58
Filed: 1962-05-29
Abstract: An N-(b -trichloro-a -alkoxyethyl) amide of an a , b -unsaturated carboxylic acid is polymerized by bulk, solution, emulsion or suspension polymerization with at least one other ethylenically unsaturated polymerizable compound.  The 'amide' compound has the general formula: <FORM:0948586/C3/1> where R is a hydrogen or halogen atom, an alkyl or a substituted alkyl radical and R1 is an alkyl, aralkyl or alkenyl radical which may be linear or branched and which may also contain hetero atoms of further substituents Lists of suitable radicals for R1 are given.  Ethylenically unsaturated polymerizable compounds mentioned are a -b -unsaturated carboxylic and dicarboxylic acids and their esters, amides, substituted amides and nitriles, such as acrylic methacrylic and maleic acids; methyl ethyl and butyl-acrylates; acrylonitrile and methacrylonitrile; acrylamide and methacrylamide; vinyl esters such as vinyl acetate and propionate; unsaturated polymerizable aldehydes, ketones and alcohols and their esters and ethers such as acrolein, methyl vinyl ketone, allyl and methallyl alcohols, allylmethylether and allyl acetate; and polymerizable hydrocarbons containing a single unsaturation and diene hydrocarbons such as ethylene, propylene, butadiene or isoprene; vinyl ethers such as vinyl methyl or ethyl ether; vinyl or vinylidene halides such as vinyl chloride and vinylidene chloride; and aromatic and heterocyclic N- or C-vinyl compounds such as styrene, alkyl-styrenes, dichlorostyrene, N-vinylpyrrolidone and N-vinylcarbazole. The polymers may be cross-linked by heating to temperatures of 160 to 190 DEG C., an acid being present if desired. They may also be cross-linked with compounds with react with the alkoxyethyl groups of the polymers e.g. condensation products of urea, melamine, phenol, or resorcinol with formaldehyde, and their reaction products with alcohols.  Epoxy resins alkyd resins and poly-alcohols may also be used.  In Example 1, N-(b -trichloro-a -methoxyethyl) methacrylamide is copolymerized with butyl acrylate using a butanol solution and dilauryl peroxide and dodecylmercaptan, while in Example 2 N-b -trichloro-a -methoxyethyl) methacrylamide is copolymerized with styrene and butyl acrylate in an emulsion there being present an alkali salt of a sulphonated oxyethylation product of a fatty alcohol mixture (C16-C18), potassium persulphate and sodium pyrophosphate in water.
Patent GB-148814-A (GB)
Title: Improvements in the fixing of blades of turbines
IPC: F01D5/30
Filed: 1920-07-10
Abstract: 148,814. R÷der, K. June 3, 1914, [Convention date]. Blades &c.-Turbine blades a are secured in the annular grooves of the blade-holder by locking pieces g which engage recesses e in the blade roots and distance-pieces b, or only in the distancepieces b, and are held fast by driving in separate strips h which bend as they penetrate into a notch i in the annular groove. The pieces g may receive their final form before insertion, or may be originally straight as shown in Fig. 5.
Patent GB-148880-A (GB)
Title: Worm gear
IPC: F16H55/22
Filed: 1920-05-10
Abstract: 148,880. Paul, (nÚe Kammerloher), M. May 14, 1917, [Convention date]. Worm-and-wheel gearing comprises gears e having the usual worm teeth k, and, in addition, deep-cut gear spirals i. The gears e are supported in bearings o upon a fixed disk d so that the teeth k mesh with a central driving wormn. The spirals i are engaged by pin-like teeth h upon a driven disk g.
Patent GB-263740-A (GB)
Title: Improvements in changeable display apparatus
IPC: G09F11/26
Filed: 1926-08-23
Abstract: 263,740. Stilwell, C. R. Dec. 31, 1925, [Convention date]. Reel and endless web apparatus.-In multiple endless band display apparatus, the bands 10, alter passing round guide rollers 8, 12, 13 at the display face extend round rear rollers 15 arranged so that the bands overlap and lie in a plane parallel to the display face. The bands are driven in unison by a chain 16 passing round sprockets 17 on the rollers 15 and round a wheel 18 driven by Geneva stop mechanism 19, 20. The top portion of the upper band 10 is concealed. The bands 10 may be perforated along their edges to engage pins on the driving rollers. The apparatus is carried by shallow tapered side frames 7 and is suitable for theatre drop curtains.
Patent GB-902721-A (GB)
Title: Improvements in or relating to building construction
Inventor: KEIR ALLAN
IPC: E04B2/62
Filed: 1958-06-28
Abstract: 902,721. Walls and partitions. KEIR & CAMPBELL Ltd. June 24, 1959 [June 28, 1958], No. 20800/58. Class 20 (4). A building construction comprises the combination of a column 1, Fig. 5, at least two ribs externally located, longitudinally directed and peripherally interspaced on the column, a panel 8, a panel locating member 5, and means 6 connecting the latter to one of the ribs, said member 5 locating the panel with an end face thereof adjacent and spaced from the column and extending transversely to said one rib. Spaces between the column and the members 5 may be closed by U-shaped elements 7 sprung into position. In the embodiments of Figs. 2, 3 and 4 (not shown), columns are formed from flanged sections other than the top-hat sections of Figs. 5, 6 and 7 in order to provide flanges on two adjacent sides, on three sides and on four sides of the column. In Fig. 6 a panel locating member 5 is attached to an unflanged side of the column by a clip 19 which engages U-shaped members 17 received in spaces between the column and those members 5 which are attached to the column flanges. In Fig. 7 a strip 24 received in a longitudinal recess 23 on one or both of its walls provides a flange for attaching a further panel locating member 5.
Patent GB-140005-A (GB)
Title: Improvements in or relating to advertising apparatus
IPC: G09F13/06
Filed: 1919-08-25
Abstract: 140,005. Mann, Egerton & Co., and Drummond, A. B. Aug. 25, 1919. Signs.-An internally-illuminated box sign has a front face 1 perforated with holes over all its surface. The face is covered by opaque paint, varnish, &c. 2, over which a further coating, e.g. in white paint, is placed to produce an advertisement 3 visible by daylight. The paint &c. is then removed from the holes covered by the advertisement so that the latter is also visible in the dark when the sign is illuminated inside. Coloured rays may be projected through the holes, or a coloured screen may be combined with the face 1 The advertisement may be readily changed.
Patent GB-967211-A (GB)
Title: Improvements in or relating to mould-filling machines
IPC: B29C45/70
Filed: 1961-06-09
Abstract: 967,211. Injection moulding machines. ECKERT & ZIEGLER G.m.b.H. June 9, 1961 [Dec. 12, 1960], No. 20973/61. Heading B5A. In an injection moulding machine comprising an hydraulic mould closing device and an hydraulicallyoperated injection piston 10, an electric contact device 15, 16 is operated by the piston when the mould is full to increase the pressure in the mould closing device and decrease the injection pressure. The contacts 15 and/or 16 are adjustable. The mould is moved to closed position by a cylinder 7 and piston 8, and held there by a rotatable locking disc 17, the mould closing pressure being determined by the pressure in a holding device 6 provided with a manometer 18.
Patent GB-894885-A (GB)
Title: Preparation of halofluorocarbons
Inventor: OLSTOWSKI FRANCISZEK
IPC: C25B3/28
Filed: 1960-06-15
Abstract: 894,885. Preparing halo-fluorocarbons, electrolytically. DOW CHEMICAL CO. June 15, 1960, No. 20989/60. Class 41. Halo-fluoro-carbon compounds are prepared by electrolysing a molten mixture of a metal fluoride and a metal chloride or bromide,.using a porous carbon anode, e.g. of petroleum coke, graphite, or carbon black mixed with a binder and sintered. Preferably the carbon anode has a permeability of 4 to 20, defined as a quantitative measure of the volume of air passing through under standardized conditions of pressure. The metal fluoride is of alkali or alkaline earth metal or an earth metal, e.g. Li, Na, Ca, Al, or Mg and the metal chloride is also of these groups and is preferably the same metal as the fluoride, e.g. CaF2 and CaCl2, where CaCl2 also acts as a melting-point depressant. Other metal chlorides which may be used are of Cu, Cr, Pb, Mo, Mn, and Cd. Other electrolyte mixtures specified include MgF2, LiF and MgCl2 or MgBr2, and many others. In a suitable cell having an insulating liner 3 to contain the molten electrolyte mixture 4, the anode carbon lead 5 is immersed in a particulate layer of carbon 13 preferably of 6 to 40 standard mesh screen, and loosely confined on the surface of the electrolyte. A sintered solid anode of the required porosity may be used, in which a solid carbon rod has a central passage ending in a cup opening closed by a plug of the sintered carbon. A layer of molten lead 12 acts as cathode. Temperatures of 700 to 1000 C. are applied. The products passing out through a pipe 7 include, mainly, CF4, CF3Cl, CF2Cl2, CF3Br, and C2F6.
Patent GB-1302823-A (GB)
IPC: C07F9/40
Filed: 1971-04-19
Abstract: 1302823 Phosphonopropionic acid amide derivatives CIBA-GEIGY AG 19 April 1971 [6 Feb 1970] 21103/71 Heading C2P [Also in Divisions C3 and D1] The invention comprises compounds of the Formula I where R 1 and R 2 are C 1-4 alkyl, haloalkyl or alkenyl, X is oxygen or sulphur, Y is methyl or hydrogen and A is haloalkyl, which may be prepared by reacting a suitable phosphonopropionic acid amide with an aldehyde HC(O)A or with the hydrate thereof. The compounds of Formula I are used as flameproofing agents for polymeric materials.
Patent GB-361275-A (GB)
Title: Boot trees
IPC: A43D3/14
Filed: 1931-07-24
Abstract: 361,275. Boot trees. MAIER, F. R., 1016, Walnut Street, Kansas City, Missouri, U.S.A. July 24, 1931, No. 21180. [Class 17 (iii).] A tree for top boots comprises hollow shin and calf members 1, 2, preferably of metal, which are adapted to be spread apart at their lower ends by a slidable wedge 35, and, at their u p per ends, by separate means s comprising a screw 25 threaded in the member 1 and engaging a socket 28 in the member 2. The wedge 35 is pivotally carried at the lower end of a rod 30, and is adapted to engage notches in webs 16, 44 projecting on different planes from the members 1, 2 respectively. The wedge is also furnished with guide ribs 42 which, when the rod 30 is lowered by means of a wing nut 31 to collapse the tree, cause the wedge to swing rearwards by an amount determined by the engagement of the rod 30 with a stop 45. The shin member 1 is fitted with a pivoted foot member 7.
Patent GB-1459625-A (GB)
Title: Overcurrent protection circuit for transistor devices
IPC: H03K17/082
Filed: 1974-05-14
Abstract: 1459625 Protection circuit for transistors RCA CORPORATION 14 May 1974 [24 May 1973] 21236/74 Heading H3T A power transistor 10, which may comprise a number of parallel-connected transistors, is protected from excessive collector current by means of an auxiliary transistor 20 connected in parallel with it. When the collector current of the auxiliary transistor 20 exceeds a predetermined value a signal indicative of an overcurrent condition is produced and operates means, i.e. transistor 40 for clamping the potential appearing between base and emitter of the power transistor 10. In the embodiment shown a current mirror amplifier comprising the transistors 51, 52 is used to produce a current in resistor 55 corresponding to the collector current of the auxiliary transistor 20, and when the voltage across resistor 55 reaches such a value that transistor 40 becomes conductive, clamping occurs. In a simplified arrangement the diode-connected transistor 51 is replaced by a resistor (25, Fig. 1, not shown). Transistor 40 may be replaced by a Darlington configuration, or a temperature-compensating diode may be connected in series with the resistor (25), while the current-measuring transistor (30) may have an emitter degeneration resistor.
Patent GB-622190-A (GB)
Title: Improvements relating to polyphase inductor alternators
IPC: H02K19/24
Filed: 1944-10-31
Abstract: 622,190. inductor-alternators. BRITISH THOMSON - HOUSTON CO., Ltd., and WALKER, J. H. Oct. 31, 1944, No. 21244. [Class 35] In a polyphase inductor-alternator wherein each exciting pole pitch on the stator embraces an integral number of rotor slot pitches and contains 2N uniformly-spaced A.C. winding slots (N being the number of phases), the A.C. windings having opposite coil sides in adjacent slots, the A.C. coils in each exciting pole which belong to one phase are separated from one another by a coil belonging to the other phase or each of the other phases and are connected in reversed series with one another. In the form shown, each stator pole carries an exciting winding F, also six A.C. coils (in the case of a 3-phase machine), coils A A<SP>1</SP>, B B<SP>1</SP>, and C C<SP>1</SP> constituting parts of the windings of each phase, one of each of these coils being reversed. In a modification, the six pole subdivisions carrying the A,C. coils are not sub-divided into teeth but have the same width as the rotor teeth. Specifications 554,827 and 557,751 are referred to.
Patent GB-1139431-A (GB)
Title: Production of a new type of butadiene polymer
Inventor: NAARMANN HERBERT
IPC: C08L9/00
Filed: 1966-05-13
Abstract: 1,139,431. Stereoblock polybutadienes. BADISCHE ANILIN- & SODA-FABRIK A.G. 13 May, 1966 [15 May, 1965], No. 21258/66. Heading C3P. Stereoblock polymers of butadiene are made by reacting (1) a catalyst containing hydrocarbon solution of uncrosslinked polybutadiene made by polymerizing butadiene with a catalyst comprising a compound of a transition metal of Groups IV to VIII of the Mendeleeff Periodic System and an alkyl metal compound until the polymer has a K-value of from 20 to 80, with (a) a similar solution of uncrosslinked polybutadiene of different configuration, until the resulting polymer has a K-value of 90 to 120. At least one of the solutions may contain unreacted butadiene. The solutions (1) and (2) are preferably effected below 0 C., and the reaction between - 5 and + 30 C. The specification contains numerous examples of catalysts which give rise to polybutadienes of different and opposite configurations. The polymers may be vulcanized.
Patent GB-247146-A (GB)
Title: Improvements relating to change-speed transmission systems
IPC: F16H63/38
Filed: 1925-08-25
Abstract: 247,146. Fuller, L. C. Feb. 9, 1925, [Convention date]. Change-speed gearing.-Comprises a two-speed gear prevented from remaining in neutral used in series with a main change-speed and reversing gear to double the speed range. It is specially applicable to Ford cars or trucks. When the neutral position is reached, the striker fork is moved beyond independently of the manual control. This auxiliary gear is contained in a casing 15, Fig. 1, secured to the rear end of the torque tube 4 and to the rear axle housing 7, the main change-speed &c. gear being in a casing 2 with control 3. A pinion 21, Fig. 5, fast on the end of the propeller 5, meshes constantly with one of a pair of countershaft gears 25, 26. A sleeve 30 fast on the end of the worm shaft 6 embraces the end of the shaft 5, and upon this sleeve is slidably splined a gear 29 with a clutch end 29<1>. For direct drive, the clutch end 29<1> engages a clutch end 21<11> on the pinion 21. A different range is produced through the train 21, 25, 26, 29 in the configuration shown. The gear 29 is operated by a striker 32 connected by springs 332, 333 to a collar 331 upon a sliding rod 33, controlled through a pull rod 334. The striker 32 is moved beyond the neutral position automatically by a pointed cam 315, Fig. 6, flanked by two notches 314 and engaged by a pointed spring plunger 39. More than one speed change in the auxiliary gear may be provided for.
Patent GB-670491-A (GB)
Title: Improvements in refractory mortars
IPC: C04B28/26
Filed: 1947-08-06
Abstract: 670,491. Refractory substances. ELECTRO-REFRACTAIRE. Aug. 6, 1947 [June 10, 1943], No. 21452/47. Class 22 A refractory mortar maturing below 800‹C. and capable of withstanding chemical corrosion, e.g. by the molten baths used in the electrolytic production of magnesium contains grains formed of highly refractory material united by a highlyaluminous glass matrix, fines of a binder maturing at the operating temperature of the mortar, and an alkali fluoride. The refractory grains consist of interlocking crystals of mullite and corundum bonded by the glassy matrix, and are prepared by heating silica and alumina together and grinding the products; zircon may also be included. The binder consists of a glass, preferably a borosilicate glass maturing at a temperature of 700-800‹, and constitutes 42-80 per cent of the refractory material. As a temporary binder, sodium silicate solution and sodium silicofluoride are added. Specification 100,738, [Class 56], is referred to.