baber/WOPTO huggingface dataset:
Patent GB-1195854-A (GB)
Title: Oxazole Derivatives and process of producing the same
IPC: C07D263/34
Filed: 1967-08-08
Abstract: 1,195,854. 2-Oxazolecarboxylic acids and esters; pyridoxine. AJINOMOTO CO. Inc. 8 Aug., 1967 [8 Aug., 1966 (2); 3 Oct., 1966; 10 Jan., 1967], No. 36474/67. Headings C2C and C2V. Novel compounds of the general formula wherein R 1  is H or a carbo lower alkoxy group where the lower alkoxy group has 1 to 4 C atoms, R 2  is a C 1-4  alkyl and R 3  is H or a C 1-4  alkyl, are prepared by reacting a compound of the general formula with a dehydrating agent in the presence of an organic base. The dehydrating agent is preferably phosgene and the base used may be triethylamine. The esters may be converted to the acids by hydrolysing with an aqueous solution of an alkali metal hydroxide or alkaline earth metal hydroxide. In the Examples (1 and 8) the ethyl ester of alanine is condensed with diethyl oxalate to give ethoxalylalanine which is dehydrated using phosgene in triethylamine to yield 4-methyl-5-ethoxy-2-oxazolecarboxylic acid ethyl ester. The starting material may be obtained by reacting a compound of the general formula R 1 CH 2 CH(NH 2 )COOR 2  with an alkyl diester of oxalic acid, R 3 OOCCOOR 3 . Pyridine derivatives are obtained by further reaction of the novel compounds with dienophiles such as fumaronitrile, 2,5-dihydrofuran and 4,7-dihydro-1,3-dioxepine. 4 - Methyl - 5 - alkoxy oxazoles are obtained from the novel acids or their salts by decarboxylation. Pyridoxine hydrochloride is obtained by reacting 5-ethoxy-4-methyl-2- oxazolecarboxylic acid with 4,7-dihydro-1,3-dioxepine, followed by the addition of HCI.
Patent GB-1016623-A (GB)
Title: Improvements in or relating to adhesive resins
IPC: C09J161/14
Filed: 1963-09-17
Abstract: A plywood adhesive comprises a phenol/formaldehyde/carbohydrat condensate to which has been added 0.05 to 20% by weight of a tannim. The formaldehyde may be introduced as formalin or paraformaldehyde and condensation effected in aqueous alkaline medium.  Specified carbohydrates are sucrose, glucose, fructose, mannose and galactose. Additional aldehyde may be added with the tannin.  Specified tannins are Quebracho, Mimosa, Gambier and Averam tannins and Myrtan and Wattle bark extracts.
Patent GB-1273768-A (GB)
Title: Harrow with at least one rotating harrow element
Inventor: STEKETEE CORNELIS JAN
IPC: A01B25/00
Filed: 1969-07-21
Abstract: 1,273,768. Harrows. C. J. STEKETEE. 21 July, 1969 [22 July, 1968], No. 36567/69. Heading A1B. A harrow has at least one rotating element provided with teeth 8 and having an upright or inclined hollow axle 3 through which seed or fertiliser passes from a hopper 14. Each hollow axle has attached a geared wheel 9 which intermeshes with the adjacent geared wheels 9, the drive being communicated from a tractor power take-off through a coupling axle 13, an axle 12 provided with a toothed conical driven wheel 11, and a conical toothed wheel 10 attached to one of the geared wheels 9. A rotor 16 in each hopper is driven on an axle 17 by an endless chain 21 from a ground wheel 19.
Patent GB-412975-A (GB)
Title: Improved methods for the production of capsules and coverings from cellulose esters
IPC: B29D99/00
Filed: 1932-12-29
Abstract: Capsules or coverings for bottles, jars, metal tubes and rods of the kind made from a composition containing cellulose ester and a substance which may be removed by a suitable solvent after formation of the capsule or covering, to cause the capsule or covering to shrink on drying and fit tightly on to the article to which it is applied, are formed by compression, extrusion or injection from a composition produced by working or mixing the materials together, the cellulose ester, water-soluble softener and optionally a plasticiser to produce a solid but plastic composition.  Small amounts of a volatile solvent may be added to facilitate the mixing.  In an example a mixture containing 3 parts of cellulose acetate, 2 parts of monochlorhydrin, 1 part of mono glycerol benzoate, and 2 parts of water is mixed at 80--100 DEG  C. until completely gelatinized, and until most of the water has evaporated.  The material is then formed to the desired shape and rendered contractile by soaking it in water to dissolve out the monochlorhydrin.  The contractile article is then applied to the article in conjunction with which it is to be used and as the water dries out, the capsule shrinks into position. Filling-materials, dyes, or pigments may be added if desired.ALSO:Capsule or coverings for bottles, jars, metal tubes and rods of the kind made from a composition containing cellulose ester and a substance which may be removed by a suitable solvent after formation of the capsule or covering, to cause the capsule or covering to shrink on drying and fit tightly on to the article to which it is applied, are formed by compression, extrusion or injection from a composition produced by working or mixing together the cellulose ester, water-soluble softener and optionally a plasticiser to produce a solid but plastic composition.  Small amounts of a volatile solvent may be added to facilitate the mixing. In an example, a mixture containing 3 parts of cellulose acetate, 2 parts of monochlorhydrin, 1 part of mono glycerol benzoate, and 2 parts of water is mixed at 80-100 DEG  C. until completely gelatinized, and until most of the water has evaporated.  The material is then formed to the desired shape and rendered contractile by soaking it in water to dissolve out the monochlorhydrin.  The contractile article is then applied to the article in conjunction with which it is to be used and as the water dries out it shrinks into position.  Filling materials, dyes or pigments may be added if desired.
Patent GB-1055289-A (GB)
Title: Improvements in or relating to measuring instruments
IPC: G01L1/04
Filed: 1963-09-18
Abstract: 1,055,289. Load measuring instruments. INSTRUMATIC Ltd, J.A. EICHER and L.E. WILLIAMS. Sept.16, 1964 [Sept. 18, 1963], No. 36794/63. Heading G1W. In order to measure a load applied to a pivoted pointer 20 of a measuring instrument, the pointer 20 is pivoted about a shaft 23 and is attached to a toothed sector 22 which meshes with a pinion 26 connected to an indicator 28, Fig. 1 (not shown), the deflection of the pointer 20 due to a load being determined by the resilience of leaf springs 36, 37 which are fixed to a support block 12 and which bear at their free ends on an outer race ring of a ball bearing 38 attached to the sector 22. The leaf springs 36, 37 which are set such that only one of the springs is deflected at any one time may be of different strengths so that by suitably calibrating the scale of the indicator accurate measurements are obtainable by suitably selecting the direction of pointer deflection under a given load. The springs are curved at their free ends by an amount to ensure that the restoring torque they exert bears a rectilinear relationship to the angular displacement of the pointer 20. The shaft 23 is journalled in jewelled bearings of two frame plates 10, 11, Fig. 1 (not shown), which are supported from the block 12 mounted within a plastics casing 14 and a spiral spring 32 is arranged on the shaft 27 of the pinion 26 to prevent backlash between the pinion and the toothed sector 22.
Patent GB-751717-A (GB)
Title: Method of cleaning glass-working tools
IPC: C03C23/00
Filed: 1954-12-20
Abstract: 751,717. Glass manufacture. CORNING GLASS WORKS. Dec. 20, 1954 [Dec. 22, 1953], No. 36802/54. Class 56 A method of removing from the surface of a glass-working tool attached to a blowing, pressing, rolling or other glass-forming machine while at working temperature the condensation products and residue resulting from working contact with hot plastic glass comprises directing against such residue a blast of dry particles of a solid ammonia derivative which will completely dissociate into gaseous products on contact with the hot surface. Several examples of suitable materials are given, particularly ammonium bicarbonate and urea. Specification 276,606 [Class 56], is referred to.
Patent GB-522945-A (GB)
Title: Improved secret contact-combination electric switch for preventing unauthorised use of motor road vehicles
IPC: B60R25/04
Filed: 1938-12-19
Abstract: 522,945. Secret contact-combination switches. ARNOLD, G. J. Dec. 19, 1938, No. 36913. [Class 38 (v)] In a combination switch, when any one of a number of conducting rings 16, 26, 29, each having a small insulated portion 16b, 26b &c. and each rotatable by a lettered or numbered permutation knob, is incorrectly set a circuit to an audible alarm 14 is completed; when the lower ring 29 is correctly set a circuit is completed to a coil 33 of a motor car, or other device. The alarm circuit is from a battery 21 through one of three arms 23, 25, 32 to a ring 16 or 26 or 29 and thence through one of three arms 16a, 27 or 31 to the alarm 14. The circuit to the coil 33 is from the battery 21 through arm 32 to small segment 29b which is electrically connected to another small segment 30b on a ring 30 that rotates with the ring 29, and thence through a finger 35 to the coil and interrupter 40. If desired the lead to the interrupter 40 may also be connected to an additional finger 38 adapted to engage an additional small segment 30c, when the device is correctly set. When incorrectly set, a circuit to the horn will be completed, even though a switch 22 is open, should a thief attempt to connect the battery 21 by means of a wire directly to the coil 33. In a modification Fig. 7 (not shown), there are five rings, the three lower rings being double rings similar to the double ring 29, 30, and having short segmented contacts adapted to be connected in series to an operating device such as an electrically-released lock, when the rings are correctly set.
Patent GB-1353802-A (GB)
Title: Colour photographic silverhalide material
IPC: G03C7/34
Filed: 1971-08-05
Abstract: 1353802 Aryloxypropionamidophenols and intermediates therefor AGFA-GEVAERT AG 5 Aug 1971 [8 Aug 1970] 36938/71 Heading C2C [Also in Division G2] α - (4 - Octadecylphenoxy)propionic acid is prepared by heating 4-octadecylphenol with α- chloro- or α-bromopropionic acid ethyl ester, mixing with sodium methylate solution, refluxing, adding aqueous sodium hydroxide and methyl alcohol and pouring the mixture into water at 0‹ C. and concentrated hydrochloric acid. α-(3-Pentadecylphenoxy)propionic acid and α - (4 cyclohexylphenoxy)propionic acid are prepared similarly. The corresponding acid chlorides are prepared by heating the acid with an excess of thionyl chloride for 3 hours at 70‹ C., and then for 2 hours at 90‹ C. in vacuo. 2-[α-(3- pentadecylphenoxy)propionamido] - 4,6 - dichloro - 5 - methylphenol is prepared by stirring a mixture of acetone, 2-amino-4,6-dichloro-5- methylphenol hydrochloride (prepared as described in German Specification 1,003,586) and N,N-dimethyl-aniline at room temperature and adding α-(3- pentadecylphenoxy)propionic acid chloride. 2 - [α - (4 - octadecyl - phenoxy)- propionamido] - 4,6 - dichloro - 5 - methylphenol and 2 - [α - (4 - cyclohexylphenoxy)- propionamido] - 4,6 - dichloro - 5 - methylphenol are prepared similarly.
Patent GB-1221843-A (GB)
Title: Method of and apparatus for obtaining a subjective color display
IPC: H04N11/00
Filed: 1968-03-20
Abstract: 1,221,843. Subjective colour displays. BATTELLE DEVELOPMENT CORP. 20 March, 1968 [24 March, 1967], No. 36965/70. Divided out of 1,221,841. Heading G5C. [Also in Division G2] Relates to the production of subjective colour in which a light source is modulated in accordance with a complex subjective colour stimuli producing code comprising a repeating sequence of intensities which vary in predetermined increments from off to full on and back to off. In a first embodiment the voltage applied to a white light source 28b, Fig. 2A, is repeatedly varied by switch 37 in predetermined increments as shown in Fig. 2B to produce red, green or blue subjective colour, respectively. Instead of switch 37 a rotating filter drum, Fig. 3B (not shown), may be employed to modulate the light from a white lamp 73 disposed within the drum in a manner corresponding to the voltage variations shown in Fig. 2B. A screen 74 having translucent letters may be placed in front of the light source.
Patent GB-1219951-A (GB)
Title: Resinous coating compositions
IPC: C08C19/28
Filed: 1968-08-02
Abstract: 1,219,951. Maleinized polybutadienes. NIPPON OIL CO. Ltd. 2 Aug., 1968 [5 Aug., 1967], No. 37027/68. Heading C3P. [Also in Divisions C6-C7] Polybutadiene having a molecular weight of 500-2000 and having 50-90% of the butadiene units arranged by 1,2-linkage is reacted with an unsaturated dicarboxylic anhydride to an acid value of 50 to 250 and neutralized with a basic compound, e.g. an amine. This resin forms an emulsion or solution in water and may be used for electrolytic coating. The resin emulsion may also contain an oil-modified alkyd, an adduct of a drying or semi-drying oil and an unsaturated dicarboxylic anhydride, or a product obtained by polymerizing any such material with a vinyl compound, and conventional pigments.
Patent GB-792640-A (GB)
Title: A refining process for use in the production of ground vegetable products
IPC: B07B7/08
Filed: 1954-12-22
Abstract: Screened flours produced from cereals, legumes or tubers are, by means of further treatment in a spiral air separator, separated into portions which differ from each other as regards their chemical constitution, for example as regards their protein and starch content.  The spiral air separator is a device in which the flour is carried in a stream of air moving in a path of decreasing radius, and in which the heavier particles are separated from the lighter ones by the differing centrifugal effects.  In the case of wheat and maize flours it is stated that the gluten content and quality varies with the particle size, and that a flour having desired chemical characteristics can be obtained by choosing the size of particle to be separated.
Patent GB-903764-A (GB)
Title: Well control and anchoring device
IPC: E21B23/02
Filed: 1958-11-18
Abstract: 903,764. Well packers. WILHOIT, L. M. Nov. 18, 1958, No. 37136/58. Class 85. A well tool is characterized by the locking means provided to secure it in a predetermined position in a well. The tool comprises a tubular body 11 which is screwed on to the upper end of a packer mandrel 12 and which locates a packer assembly 13. A valve sleeve 17 is screwed on to the lower end of the packer mandrel 12 and a collect-locking member 18 is screwed in to the valve sleeve. The mandrel 12 and the member 18 each have extensions (19 and 20) which project into the valve sleeve 17 and each extension has a plurality of ports (21 and 22) which connect the bores of the extensions and the interior of the valve sleeve. The collet-locking member 18 has a plurality of resilient prongs 23, each of which has a boss 24. The collet is expanded by a head 25 on the lower section 26 of a control rod which also comprises an enlarged valve section 27 and an operating section 28. There is a valve gland assembly 34 between the lower control rod section 26 and the valve section 27 and a similar gland 37 at the upper end of the valve section. A cap 40 is screwed on the operating section 28. The body 11 has a downwardlyfacing stop shoulder 43 which engages a shoulder 44 on a landing nipple 45 and limits the downward movement of the tool through the well casing, of which the landing nipple 45 forms a part. While the tool is being lowered through the casing the control rod is in the downward position so that the cap 40 rests on the flange 46 and the head 25 is clear of the collet. When further downward movement of the tool is prevented by the shoulders 43 and 44 the control rod is raised, the head 25 expands the collet and the tool is locked in the landing nipple since the expanded collet cannot pass the shoulder 52. A stop ring 53 secured to the valve section 27 limits the movement of the control rod. In this position, as shown in Fig. 3, the annular space between the well casing and the packer mandrel is sealed by the packer 13 and the space between the control rod and the packer mandrel is sealed by the gland 37, but well fluids may flow into the landing nipple 45 above the packer 13 through the ports 56 and hence through the ports 50 in the body 11. To circulate fluids downwardly through the well casing the control rod is lowered to position the gland 34 below the ports 22. To equalize the pressures above and below the tool the control rod is moved to an alternative position where the upper gland 37 is below the ports 21 and the lower gland 34 is above the ports 22. In a modification (Fig. 6) the control rod is in one piece with an enlarged centre section 67 which co-operates with the glands 60 and 63 to form a valve.
Patent GB-1431031-A (GB)
Title: Apparatus for collecting the finished workpieces from an automatic  machine tool
IPC: B23Q7/12
Filed: 1974-08-23
Abstract: 1431031 Workpiece transferring INDEX-WERKE KG HAHN & TESSKY 23 Aug 1974 [10 Sept 1973] 37203/74 Heading B3B Apparatus for collecting workpieces from a machine tool spindle head 14 and depositing them in a collecting box 24 comprises a collecting tray 28 pivotally connected to one end of an arm 30 which is pivotally mounted at its other end on the machine tool by means of a driven shaft 32, and a control mechanism for maintaining the tray 28 in a substantially horizontal position while the arm 30 is pivoted, the control mechanism comprising a first sprocket or pulley 40 rotationally fixed relative to the machine tool, a second sprocket or pulley 38 rotatable relative to the arm 30 but rotationally fixed on a pivot axle 42 of the tray, and a chain or belt 36 passing round the sprockets or pulleys. Near the end of its travel, a lug 54 engages a stop 56 to tilt the tray over the box 24, and to allow for this extra relative movement an extensible member, e.g. spring, is inserted in the chain or belt. The apparatus is mounted below a turret slide 20 of an automatic turret lathe. The shaft 32 is rotated by a rotary vane pneumatic or hydraulic motor 34.
Patent GB-1322999-A (GB)
Title: Crate
IPC: B65D1/24
Filed: 1971-08-09
Abstract: 1322999 Crates STAMICARBON NV 9 Aug 1971 [3 Sept 1970] 37322/71 Addition to 1314056 Heading B8P To facilitate automatic filling and emptying, a crate according to the Specification 1,314,065 is modified by having an odd number of rows of compartments for bottles, the or each alternate row being divided in two, so that the bottles in each division are staggered a distance e relative to those in adjoining rows but with the bottles of one division staggered in one direction relative to those in adjoining rows and the bottles of the other division staggered in the opposite direction. The stagger distance e, has a value of less than 0À5 d, where d is the centreto-centre distance between successive bottles in a row. In the embodiment shown the centre row is so arranged to leave a central space 4 of width 2e. The partitions 1 adjacent the space 4 may be upwardly extended slightly to provide a handle (5, Fig. 4) which is located below the upper crate edge 8 to permit stacking on pallets (Fig. 6). Rings 3 are situated on the underside of a grating 2 forming the crate bottom to assist stacking. In a second embodiment (Fig. 5) the outer rows are arranged in halves and handles may be provided at the side walls (see 6, 7, Fig. 5).
Patent GB-1282185-A (GB)
Title: Internal combustion engine having exhaust gas treatment
IPC: F01N13/02
Filed: 1970-08-04
Abstract: 1282185 Purifying I C engine exhaust gases FORD MOTOR CO Ltd 4 Aug 1970 [22 Sept 1969] 37487/70 Heading F1B The exhaust gas stream from an I.C. engine operating with an air/fuel weight ratio not substantially lower than the stoichiometric is passed over a first catalyst for the oxidation of carbon monoxide and hydrocarbons, cooled to a temperature not substantially in excess of 900‹ F., e.g. 600 or 715‹F., and ammonia gas or a compound which readily releases ammonia, e.g. ammonium hydroxide, ammonium carbonate, urea, hexamethylene tetramine, hydrazine or ethylene diamine, or acts as its chemical equivalent is added to the cooled stream. The treated stream is then passed over a second catalyst promoting the reduction of nitrogen oxides. The first and second catalysts may be copper oxide or platinum or an alumina and an alumina-halogen support, respectively. Methods of producing the catalysts and numerical examples of their effect are given in the Specification.
Patent GB-1024969-A (GB)
Title: Helicopter power plant
Inventor: WILDE GEOFFREY LIGHT
IPC: B64C27/18
Filed: 1964-09-14
Abstract: 1,024,969. Helicopter power plant. ROLLSROYCE Ltd. Sept. 14, 1964, No. 37542/64. Headings B7G and B7W. [Also in Division F1] A helicopter power plant comprises a jet propulsion engine and means for directing gases of the engine through a free turbine mounted for rotation about an axis which is normal to the longitudinal axis of said engine, the free turbine being coaxial with and mechanically coupled to the helicopter rotor. A helicopter comprises a fuselage 11 and fixed wings 12, 13 which carry gas turbine engines 14, 15 and rotors 16. Each engine is a by-pass engine in which air from the L.P. compressor which does not pass to the combustion equipment flows through ducts 25 and 27 to be diverted to nozzle 22 or to duct 30 leading to circulation control slits formed in the rotor blades. The combustion gas may flow to the nozzle 22 or may be diverted to drive a free turbine 19 connected by a shaft 18 and epicyclic gearing to a drive shaft 17 for the rotor. The drive mechanisms of the two engines are cross-connected by bevel gears and a shaft 52 to ensure that at least one engine will drive the rotor and the ducts 27, 30 are cross-connected at 40 to ensure that a flow of air will be maintained at the rotor if one engine fails. During take-off and landing valve mechanisms are operated to divert combustion gases to turbine 19 and by-pass air to the rotor blades and in forward flight the valves are operated to divert combustion gases and by-pass air to nozzle 22, lift being provided by wings 12, 13 with the rotor blades positioned fore-and-aft of the fuselage. An alternative engine form is described, mounted on a relatively high wing to reduce the length of shaft 18, in which the by-pass air duct terminates in a nozzle separate from the nozzle for the combustion gases.
Patent GB-1110038-A (GB)
Title: Improvements in or relating to the manufacture of coated arc welding electrodes
IPC: B23K35/365
Filed: 1965-09-02
Abstract: Flux coated arc welding electrodes are made by extruding at a temperature below 196 DEG C. a plastic preferably moistened mixture of powders containing chromium trioxide (CrO3), preferably 1% to 10% by weight, on to tubes or rods of iron or steel and heating the coated electrode above the melting point of chromium trioxide (196 DEG C.). The chromium trioxide may be added as the powdered oxide or an aqueous solution or as chromic acid.  The mixture may also contain the binders - alkali metal silicates, diopside, bentonite, rutile, china clay, cellulose ester or alginate and paraffin wax. Copper oxides, alkaline earth metal oxides and carbonates may also be present.  A specific example gives the following percentage composition ..% .Diopside.75 .Bentonite.4.5 .Rutile.10 .Fe/Si.5 .CrO3.5 .Cellulose ester.0.5