baber/WOPTO huggingface dataset:
Patent GB-1151226-A (GB)
Title: Control Devices, e.g. for Changing the Ratio of Automatic Transmissions of Vehicles
IPC: F16H59/36
Filed: 1966-05-10
Abstract: 1,151,226. Change-speed control. REGIE NATIONALE DES USINES RENAULT. 10 May, 1966 [13 May, 1965], No. 20745/66. Heading F2D. [Also in Division H3] Two transistorized threshold circuits 25a, 25b, Fig. 3, operating coils 12a, 12b, e.g. of solenoid-operated valves, controlling the gear change of a vehicle, are supplied from a tachometer generator 27 responsive to vehicle speed, the generator output being also controlled by the position of the acceleration pedal 28. In each threshold circuit there is a gap between the voltage required to cause energization of its relay coil and that required to de-energize it; this gap is reduced by closure of a switch 17 which is operated when the acceleration pedal is fully depressed. A switch (19, Fig. 1, not shown) allows a relay coil to remain energized in spite of a large input from the tachometer generator, thereby allowing a low gear to be used for braking; the switch may be connected to the gear change lever or to push-buttons for manually selecting the gear ratio. The gear-box may be of the epicyclic type including solenoidoperated valves.
Patent GB-1490780-A (GB)
Title: Electric switch
IPC: H01H9/02
Filed: 1975-05-16
Abstract: 1490780 Mechanical switches AMP Inc 16 May 1975 [3 June 1974 20 Aug 1974] 20764/75 Heading H1N A multiple electric switch comprises a number of switch units assembled side by side in a common housing (4, Fig. 1, not shown) each switch unit comprising (Fig. 6) a slide member 44 carrying a contact member 32 with arms 38, 42 contacting fixed contacts 8, 10 when slide 44 is moved to the left (Fig. 5, not shown) by moving actuator 48 by hand or by a tool (not shown) inserted in a recess in its surface, curved portion 52 on arm 38 resting on one side or other of the corrugation 18 in contact 10 to hold the slide in position. The slide 44 and the base 28 and cover of the housing are moulded of electrically insulating material, contact members 8, 10 and 32 being moulded in place, the cover being secured by adhesive. The down-turned ends of contacts 8, 10 are relatively narrow and serve as pluggable leads. The actuating members 48 may be as shown or flush with or recessed below the top surface of the cover and may be covered by a length of pressure-sensitive adhesive-backed tape applied over the cover to inhibit actuation. In the embodiment of Fig. 9 each contact 10 is replaced by a strip 88 of metal or conducting foil with corrugations 90 to form a multiposition switch, the strip resting on a similarly corrugated base 76 and being partially embedded in a partition (82, Fig. 10, not shown), and each arm 42 extends through a respective slot 184) to move from one conductor 108 to the next as the slider is operated, the conductors 108 being provided on a printed circuit board 106.
Patent GB-532673-A (GB)
Title: Improvements in or relating to the production of acidyl derivatives of cellulose and other organic substances
IPC: C08B3/16
Filed: 1939-07-18
Abstract: 532,673. Cellulose derivatives ; resinous condensation &c. products ; albumens ; artificial silk. MONCRIEFF, R. W., BATES, H., and DREYFUS, H. July 18, 1939, Nos. 20825 and 20827. Divided out of 532,674. [Classes 2 (ii) and 2 (iii)] [Also in Group VIII] Formed articles such as yarns, fibres or foils having a basis of a cellulosic or other organic substance containing hydroxy or -NH- groups are acidylated by heating them in a medium containing a mixed anhydride of succinic, adipic, tartaric, or phthalic acid and a lower mono-carboxylic acid under such conditions that their form is retained. The mixed anhydride may be obtained by heating a mixture of the dicarboxylic acid anhydride and a lower monocarboxylic acid or ester thereof, or a mixture of a lower monocarboxylic acid anhydride and the dicarboxylic acid or an ester thereof. Free acid may be removed from the heated mixture by distillation or by passing ketene through the mixture, or by adding a base such as pyridine or calcium, barium, or strontium oxide. Acetic, propionic, butyric, methoxy-acetic, ethoxyacetic, or a chloracetic acid may be used as the monocarboxylic acid. The process is applicable to the treatment of yarns and other formed articles having a basis of wool, casein, polyamides, partially saponified polyvinyl esters, e.g. vinyl chloride-vinyl acetate co-polymers, regenerated cellulose including that obtained from the viscose, cuprammonium, or nitrocellulose process or from the saponification of cellulose esters, or having a basis of cellulose derivatives such as cellulose acetate or other cellulose ester or ether. Acidylation may be effected in the presence of catalysts such as ferric, zinc, or stannic chloride. Diluents such as kerosene, xylene, mixtures of xylene and paraffin wax, anthracene, naphthalene, or odichlorobenzene may be present. In an example, a warp-knitted cellulose acetate fabric is heated with a boiling solution of a mixed anhydride obtained by heating adipic acid with acetic anhydride, driving off free acetic acid and dissolving the residue in a mixture of xylene and o-dichlorobenzene. The fabric is subsequently washed in boiling carbon tetrachloride. In other examples, cellulose acetate fabric is heated with a mixed anhydride of phthalic acid or tartaric acid and acetic acid dissolved in kerosene. The treated fabrics are water-resistant and have a higher melting point and safe ironing temperature than before the treatment. They are insoluble in most solvents. Prior to the acidylation they may be scoured and dry cleaned to remove lubricant. The Provisional Specifications describe also the acidylation of cotton linters for the production of cellulose derivatives which can be dissolved in organic solvents and formed into filaments, foils, lacquers or other products. Esterification may be effected in presence of a solvent for the cellulose derivative produced.
Patent GB-586493-A (GB)
Title: New synthetic oestrogenic agents
IPC: C07C39/215
Filed: 1944-10-26
Abstract: Oestrogenic agents of the general formula <FORM:0586493/IV/1> in which R and/or R1 is an alkoxy group or hydrogen, R11 is an ethoxy or higher alkoxy group and X is either chlorine or bromine (excepting a - p - methoxyphenyl - a  : b  - di - p - ethoxyphenylbromoethylene and a -phenyl-a  : b -di - p - ethoxyphenylbromoethylene), are obtained by the action of chlorine or bromine upon the corresponding tertiary carbinol with or without prior dehydration to form the corresponding substituted triphenyl ethylene.  The said carbinals may be obtained by hydrolysing the products obtained by treating a derivative of phenyl acetic acid p-R11.C6H4.CH2COOEt with a Grignard compound p-R1.C6H4.Mg.Hal (in which case R and R1 are identical) or by reacting the Grignard compound p-R1.C6H4 MgHal with a substituted desoxybenzoin p-R.C6H4.CO.CH2C6H4p-R11 (in which case R and R1 may be identical or different).  In examples: (1) the Grignard compound from p-bromophenetole and magnesium in ether is treated with ethyl p-ethoxyphenylacetate to produce di - (p - ethoxyphenyl) - p -ethoxybenzyl - carbinol which is treated with bromine in glacial acetic acid with or without prior dehydration by means of sulphuric acid to produce tri-p-ethoxyphenylbromoethylene; (2) a  : a  - di - p - methoxyphenyl - b  - bromo - b  - p - ethoxyphenyl ethylene is obtained as in (1) using p-bromoanisole instead of p-bromophenetole; (3) a  : a  - diphenyl - b  - bromo - b  - p - ethoxyphenylethylene is obtained as in (1) using bromobenzene instead of p-bromophenetole; (4) a  : a -diphenyl-b -p-n-propoxyphenyl-b -bromoethylene is obtained as in (3) using ethyl - p - n - propoxyphenylacetate instead of ethyl - p-ethoxyphenylacetate; (5) a  : a -di-p-n-propoxyphenyl - b  - p - ethoxyphenyl - b  - bromo - ethylene is obtained as in (1) using p-n-propoxybromo-benzene instead of p-bromophenetole. Specifications 566,415 and 567,807 are referred to.  Samples have been furnished under Sect 2 (5) of: (I) a  : a  - di - p - methoxyphenyl - b  - p - ethoxy - phenyl-b -chloroethylene obtained by treating with chlorine the corresponding carbinol prepared as in example (2); (II) p-methoxyphenylphenyl-p-ethoxybenzyl carbinol obtained from the Grignard compound of p-bromoanisole and magnesium with p-ethoxybenzylphenyl ketone; (III) the corresponding b -bromoethylene obtained from sample (II) with bromine in glacial acetic acid; (IV) the geometric isomer of a -p-methoxyphenyl-a -phenyl-b -p-ethoxyphenyl-b -bromoethylene obtained by allowing the acetic acid mixture of (III) to stand several weeks; (V) p - methoxyphenyl - phenyl - p - n - propoxy - benzyl carbinol obtained by treating the Grignard compound from p-bromoanisole and magnesium with p-n-propoxybenzyl phenyl ketone; (VI) the corresponding b -bromoethylene obtained from sample (V) with bromine in glacial acetic acid.
Patent GB-859305-A (GB)
Title: Production of sucrose esters
Inventor: BRICKNELL KENNETH
IPC: C07H13/06
Filed: 1958-07-01
Abstract: A sucrose ester of an aliphatic monocarboxylic acid is produced by reacting sucrose and an alkyl ester of the acid in the presence of an alkaline alcoholysis catalyst, in a reaction solvent and a hydrocarbon as entrainer, and distilling off the alkanol formed as the reaction proceeds as an azeotrope with the entrainer.  It is preferred to use an ester of an alkanol containing from one to twenty carbon atoms.  Suitable catalysts include alkali metal carbonates and alkoxides.  The solvent may be dimethyl formamide or dimethyl sulphoxide.  Benzene is the preferred entrainer but any aliphatic or cycloaliphatic hydrocarbon entrainer may be used, including hexane, heptane and cyclohexane.  The reaction mixture is preferably dried by azeotropic distillation before addition of the catalyst.  The catalyst is then added and the mixture heated under reflux, the liberated alkanol being distilled off as a binary azeotrope with the entrainer.  The progress of the reaction can be followed by measuring the volume of azeotrope produced. Specification 826,801 is referred to.  Reference has been directed by the Comptroller to Specification 824,654.
Patent GB-1045779-A (GB)
Title: Die structure for wafering machine
Inventor: HARRINGTON ROY EDWARDS
IPC: B30B11/20
Filed: 1964-05-21
Abstract: 1,045,779. Wafering machines. DEERE & CO. May 21, 1964, No. 21039/64. Heading A2B. A die structure for a wafering machine comprises a pair of ring-like side walls and a plurality of uniformly spaced apart radial spacers, to form an annular series of die cells having inlet and outlet ends, and at least one divider element having a relatively small cross sectional dimension in the direction of and relative to the length of the die opening from end to end of said opening, for example a wire-like element, extending circumferentially of the annulus at the inlet ends of the dies and being engaged by the spacers, so that when a forage crop is forced into the die it is split to form a plurality of wafers in each die. Fig. 1 shows a general view of a die structure, with side walls 12 and 14 and spacers 18 defining cells 20, with divider element 36 fitting in grooves in the spacers. The divider element may be in the form of a snap ring. In another form, instead of grooves in the spacers, the element is threaded through holes in the spacers. Fig. 4 shows a section through line 4-4 in Fig. 1 exhibiting how the forage crop is split along 42 to form wafers 44 and 46. A blade 50 pivoted at 52 and controlled by hydraulic means 58 controls the density of the wafers.
Patent GB-819492-A (GB)
Title: Improvements in or relating to optical setting and measuring devices
IPC: B23Q16/00
Filed: 1956-07-06
Abstract: 819,492. Machine-tool details. LINDNER G.m.b.H., H. July 6, 1956 [July 6, 1955], No. 21095/56. Class 83 (3). [Also in Group XL (b)] An optical device for the precision setting of a machine table &c. comprises a measuring scale in association with rollers carrying shutters which latter, arranged with respect to meshing numbered gears, determine light-transmitting slots corresponding to the setting of the machine. Beams 12 from a lamp 10 pass between helically-staggered gaps in strips 18<SP>1</SP>, 191 on rollers 18, 19 to fall on photo-cells 16, 17 behind a slotted measuring-scale 1. Lamp and photocells are jointly movable on a carriage 8 across the bed 5 of a machine tool. The rollers are geared to wheels 22, 26 which carry numbered discs 23, 27, representing units and tens, corresponding with the slots on the rollers. In operation, the wheels 22, 26 are set to a number corresponding to a position on the scale 1 which will be detected photo-electrically when the carriage 8 is moved, and thus stop the carriage after the required traverse. Another roller may replace the measuring scale (Fig. 3, not shown, refers), and the beams may be subdivided by refraction through any one of ten piano-parallel glass slots arranged around a rotatable drum (Fig. 5, not shown, refers). A stationary light system and mobile measuring scale is also mentioned. Specification 803,205 is referred to.
Patent GB-1395815-A (GB)
Title: Bandaging material and process for its production
IPC: A61L15/18
Filed: 1972-05-05
Abstract: 1395815 Bandaging material BUNZL & BIACH AG 5 May 1972 [6 May 1971 21161/ 72 Heading B2E A bandaging material comprises one or more layers of cellulosic or fleecy material coated on the side for placing next to a wound with a porous non-adhesive layer of acrylic resin containing a substance which controls the growth of germs or kills them, the layer(s) of cellulosic or fleecy material being backed with an absonbant or strengthening layer. The fleece may be polyamide, polyester, polyolefin or cellulosic and coated with silicone resin. The substrate cellulosic material may be impregnated with acrylic resin or silicone resin solution or emulsion before coating. Impregnation with acrylic resin may be followed by embossing. The acrylic (e.g. polyacrylisobutylester) coating is preferably applied by screen printing and germicides mentioned are ZnO, Al 2 O 3 , Al or Ag powders, sulphonamides and phenyl mercury borate. The backing layer may be cotton-wool, cotton fleece, attached by stitching or sticking, or by welding when it contains thermoplastics.
Patent GB-1440749-A (GB)
Title: Stripping apparatus
IPC: B21D45/06
Filed: 1975-05-19
Abstract: 1440749 Deep drawing L SCHULER GmbH 19 May 1975 [24 May 1974] 21196/75 Heading B3Q Articles 5 are stripped from a ram 3 by at least two fingers 10 each with spaced pins 8, 9, means being provided for moving the fingers axially of the ram and for rotating them about pins 8 so that pins 9 retract radially away from the ram. A plurality of the fingers are arranged about the ram with the pins 8 slidable in passages 11 in a ring 2 under the influence of fluid pressure from a chamber 13. Thus the fingers can accommodate an uneven end on the work. The pins 9 are in radial pockets 12 in a ring 4 which may be turned by a cylinder 7 relatively to the ring 2 so as to retract the pins 9, Fig. 4 (not shown). Specification 1,419,365 is referred to.
Patent GB-242953-A (GB)
Title: Improvements relating to apparatus for turning spherical surfaces
IPC: B23B5/40
Filed: 1925-08-25
Abstract: 242,953. Gribojedoff, N. Nov. 17, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Lathes.-In a device for turning spherical ends and sockets for interengagement, the work rotates continuously about an axis x, y while the tool 6 is oscillated about an axis 5 for operating on a socket 8, or about an axis 4 for operating on a ball 12, the distance 4, 5 being equal to the diameter of the sphere. The carrier 3 to which the tool is pivoted at 5, is pivoted at 4 to a slide 2 for movement along the lathe bed. The oscilla.- tory movements about the axis 5 are controlled by gears 9, Fig. 2, a further pair of gears and a hand-wheel, and about the axis 4 by a pair of gears and a second hand-wheel. An additional tool 7 operates on the outside of the socket. In a modified construction, oscillation about the axis 5 is produced by an arcuate guide 21, Fig. 3, and a worm 20, the carrier 3 which carries the guide 21 being mounted on trunnions 4 as before.
Patent GB-960716-A (GB)
Title: Wagon tipper
Inventor: HOWARD BRIAN EDWARD
IPC: B65G67/00
Filed: 1961-06-13
Abstract: 960,716. Waggon tipper stops. C.A.E.C. HOWARD Ltd. July 23, 1962 [June 13, 1961], No. 21308/61. Heading B8E. A wagon tipper comprising platforms 5, 5a pivoted at 6, 6a for pivoting by electrically driven drums 8 to empty wagons a into a hopper 4 is provided with wagon stop arms 12 pivoted about pins 13 disposed horizontally longitudinally of the platforms. An arm 12 may be provided at each side of the platform and the arms are power operated, as by an hydraulic ram, from an inoperative position disposed at the side of the platform to an operative position disposed in the path of the wagon to engage its buffers.
Patent GB-646614-A (GB)
Title: Improvements in or relating to the production of mechanical energy by thermic means
IPC: F01K23/02
Filed: 1948-08-12
Abstract: 646,614. Gas and steam turbine plants. SOC. DE CONSTRUCTIONS MECANOTHERMIQUES (C.O.M.E.T.). Aug. 12, 1948, No. 21334. Convention date, Sept. 3, 1947. Drawings to Specification. [Class 110(iii)] In a power plant comprising both gas and steam turbines, steam tapped from the turbines is used to pre-heat the compressedair for the gas turbines. The tapped steam may be used subsequently for heating the feed-water. A succession of tappings for air-pre-heaters in series may be used. The tapped steam may also be used for heating a further fluid. Specifications 607,311 and 617,871 are referred to.
Patent GB-460580-A (GB)
Title: Improvements in photographic development
IPC: G03C7/413
Filed: 1935-07-29
Abstract: An N-oxyalkyl-p-phenylenediamine is used as the developing agent in a photographic developer.  Suitable compounds are di-(oxyethyl)-p-phenylenediamine, methyl-oxyethyl-, ethyl-oxyethyl-, butyl-oxyethyl-p-phenylenediamine, the corresponding toluidines, and b  : g -dioxypropyl-p-phenylenediamine and its alkyl derivatives. The compounds may be prepared by converting the corresponding aniline derivatives, e.g. di-(oxyethyl)-aniline into the nitroso derivatives and reducing the nitroso group or by coupling oxyalkyl-aniline derivatives with diazotized sulphanilic acid and reducing the product.
Patent GB-320904-A (GB)
Title: Improvements in or relating to the manufacture of glass transparent to ultra-violet rays
IPC: C03C1/00
Filed: 1928-07-25
Abstract: 320,904. Pilkington Bros., Ltd., and Phelps, D. V. July 25, 1928. Production of metal.-Relates to glass which is transparent to ultraviolet rays, and the tendency of this glass to lose its power of transmitting the rays. According to the invention, a glass which does not lose materially its transparency to the rays is made by ensuring that all or nearly all, of the iron that may be present in the glass is in the form of ferric oxide. The iron is oxidized to the ferric condition either by melting under oxidizing conditions or, preferably, by introducing into the batch an oxidizing agent, such as potassium nitrate. Specification 263,410 is referred to.
Patent GB-1179489-A (GB)
Title: Process for preparing 11-Desoxyprostaglandin and Homologues thereof
IPC: C07C405/00
Filed: 1967-05-09
Abstract: 1,179,489. 11-Desoxyprostaglandins, homologues thereof and intermediates therefor. AYERST, McKENNA & HARRISON Ltd. 9 May, 1967 [10 May, 1966], No. 21555/67. Heading C2C. Compounds of the Formula I (wherein n is 1, 2, 3, 4, 5 or 6) which are novel when n is other than 4, are prepared by the reaction sequence shown below via novel (when n is 4) intermediates IV, VI, VII, VIII and IX (R is C 1-4  alkyl). The preparation of the starting material II is described in Specification 1,163,762.
Patent GB-1043088-A (GB)
Title: Improvements in or relating to terminals for the outlets of flue pipes
Inventor: GOOD LEONARD ROLAND THORO
IPC: F23L17/02
Filed: 1964-05-25
Abstract: 1,043,088. Chimney tops. TRUE FLUE Ltd. March 25, 1965 [May 25, 1964], No. 21589/64. Heading F4J. A flue outlet terminal comprises an annular element 3, surrounding a pipe 1 projecting through a wall 2, said element 3 being formed by a trumpet-shaped part 3A defining a passage of cross-section diminishing upwardly away from the wall and by a disc portion 3B defining a Venturi 7 with a cap 4 above the pipe outlet, said cap being formed by an outer domed surface 5 and a convex disc-like base 6 enclosed at their mutual junction by an annular beading 8. Air moving perpendicularly towards surface 5 flow around cap 4, is deflected by wall 2 around the element 3 and accelerated through the passage away from the wall before flowing radially outwardly under surface 6 with subsequent extraction of flue gases, which is further enhanced by a low pressure zone 9 created by turbulent air flow over beading 8. Air flow parallel to the wall, Fig. 2 (not shown), divides one stream passing over cap 4, the other through Venturi 7, which causes a pressure reduction at the pipe outlet with subsequent flue gas extraction therefrom.
Patent GB-184470-A (GB)
IPC: A43B23/28
Filed: 1922-08-08
Abstract: 184,470. Teichmann (nÚe Strobel), L. Aug. 9, 1921, [Convention date]. Stockings.-A foot-covering or protector for stocking feet is formed from tubular mesh fabric by closing one end of the tube by a flat seam b. A barrel-shaped tube may be used and may be folded over in the middle, Fig. 3 to give a double thickness, the folded edges a being united by a flat seam.
Patent GB-962240-A (GB)
Title: Improvements in or relating to cooling circuits for liquid moderator nuclear reactors
Inventor: COSTES DIDIER
IPC: G21C1/20
Filed: 1961-06-15
Abstract: 962,240. Moderators. COMMISSARIAT A L'ENERGIE ATOMIQUE. June 15, 1961 [June 17, 1960; May 23, 1961], No. 21654/61. Drawings to Specification. Heading G6C. In a heavy water or organic liquid moderated, gas cooled nuclear reactor, vapour from the moderator is passed through a condenser and returned as liquid to the reactor. To maintain the moderator pressure when the reactor is shutdown the liquid may be boiled by an electric heater. In an emergency, following an explosion of a . pressure tube, the moderator pressure is maintained by a pressurised inert gas. The channels through which the moderator vapour from the reactor tank passes to the condenser may be arranged to enter the condenser chamber tangentially. Thus, in the event of an explosion in the reactor the condenser chamber functions as a cyclone separator, the gases being released through a valve and the solid debris and liquid being retained. The condenser may have a volume equal to that of the reactor tank to enable the storage therein of the moderator when it is necessary to empty the reactor. To cool the moderator vapour leaving the reactor, it is caused to flow over a surface cooled by the inflowing condensate from the condenser. The reactor is surrounded by a light-water reflector.