baber/WOPTO huggingface dataset:
Patent GB-1110859-A (GB)
Title: A process for the separation of dimethylformamide from the reaction product of a dimethylformam ide synthesis
Inventor: PEINZE GEORG
IPC: C07C233/00
Filed: 1965-11-22
Abstract: The reaction product, consisting mainly of dimethylformamide, methanol, methyl formate, catalyst salts, monomethylformamide and dissolved carbon monoxide, which is obtained from a single-stage synthesis plant for the production of dimethylformamide from methanolic dimethylamine solution and carbon monoxide in the presence of methyl formate and sodium methylate as catalyst at temperatures of about 100 DEG  C. and pressure of about 200 atmospheres, is treated by a process which consists in expanding the products to atmospheric pressure, removing and cooling the liberated carbon monoxide, subjecting the remaining product mixture to total evaporation, removing the residual salts, distilling in a gaseous state the salt-free product mixture obtained at atmospheric pressure into a fraction having a boiling point lower than that of dimethylformamide and a sump fraction consisting of crude dimethylformamide, and further in separating the crude dimethylformamide obtained as the sump fraction, by distillation under reduced pressure in a second distillation stage into a crude monomethylformamide as a sump fraction and a distillate, separating from the vaporous distillate by fractional condensation, in a first condensation stage, substantially pure dimethylformamide and in a second condensation stage dimethylformamide contaminated with lower boiling products, and in using the previously separated fraction with a boiling point lower than that of dimethylformamide obtained from the first distillation stage as a circulating product in the single stage synthesis plant and, if desired, adding part of this fraction to the reaction product mixture, and in recirculating the impure dimethylformamide obtained in the second condensation stage to the reaction product mixture.
Patent GB-1183500-A (GB)
Title: Adjustable Concrete Column Form and Panel therefor
Inventor: GILBERT JOHN RICHARD
IPC: E04G13/02
Filed: 1967-11-01
Abstract: 1,183,500. Column shuttering. SYMONS MFG. CO. 1 Nov., 1967, No. 49686/67. Heading E1S. Column or wall corner shuttering comprises plywood-faced panels 12 supported by a metal framework with generally channel-sectioned edge members 30 and composite T-sectioned bracing members 22, 24, horizontally elongated slots 26 and 36 (Fig. 4, not shown) being provided in the bracing members and edge members respectively, through which slotted T- shaped bolts are passed and screwed in position by wedges 46. Slots 60 (Fig. 1, not shown) in the horizontal flanges of the bracing members allow the wedges to be driven, and circular portions 48 of the facing are cut out to allow the bolts to pass through the panel. The panels may be employed to make rectangular columns of a number of different sizes. The slots in the bracing members are in the downwardlyextending flanges in the upper half of the panel, and vice versa, and all such slots are horizontally, aligned with slots in the edge members.
Patent GB-1415837-A (GB)
Title: Compositions containing dithionites
IPC: D06L4/30
Filed: 1971-10-26
Abstract: 1415837 Stabilizing dithionites ALBRIGHT & WILSON Ltd 20 Oct 1972 [26 Oct 1971 12 April 1972] 49707/71 and 16893/72 Heading C1A [Also in Division D1] An anhydrous bleaching composition comprises a major proportion of a metallic dithionite and, as stabilizer, a minor proportion of an unsaturated carboxylic acid or anhydride thereof. The acid may be fumaric, maleic (or maleic anhydride), benzoic, salicyclic, napthoic or phthalic acid and specified phenoxy acetic, methylphenoxyacetic, naphthoxyacetic acids, or corresponding proprionic or butyric acids, and chloro-derivatives thereof. The acid may contain nitro, methyl, ethyl, isopropyl, cyano, carboxy, alkoxy and bromo groups. The acid may comprise 0À1 to 10% of the composition. The dithionite be sodium, potassium of calcium dithionite. The dithionite and acid may be mixed in organic liquid or in a melt. The composition may also contain sodium phosphate, soda ash, sodium bicarbonate, sodium benzoate, ethylenediaminetetracetic acid or urea.
Patent GB-1442668-A (GB)
Title: Estates with refuse collecting apparatus
IPC: B65F5/00
Filed: 1973-10-25
Abstract: 1442668 Refuse collecting systems for estate layouts SOC INDUSTRIELLE DE TRANSPORTS AUTOMOBILES 25 Oct 1973 49810/ 73 Heading E1A A residential estate with multi-storey buildings A, B, C, each provided with refuse chutes 1 terminating in collecting receptacles 2 is provided with a common refuse collecting service comprising at least one collecting vehicle arranged for circulation in a casing 3 communicating with a discharge station 34. The casing 3 is made up from different sections 3a-3e which may be above or below ground level or underslung from the ceiling of the basement of the building, see also Figs. 2 and 3 (not shown). For innumerable details concerning the vehicle, its tipping and electromagnetic control circuit Figs. 4-8b, (not shown) should be referred to. Refuse too large for the chutes may be fed into the system through a trap door 68.
Patent GB-1113343-A (GB)
Title: Alkali metal bisulphite derivatives of diglycolaldehyde and process for the preparation of diglycolaldehyde
Inventor: FIELD GEORGE TERENCE JAMES
IPC: C07C47/198
Filed: 1963-11-08
Abstract: Alkali metal bisulphite derivatives of diglycolaldehyde (OCH.CH2.O.CH2.CHO) in solid form and preparation of diglycolaldehyde by ozonolysis of 2,5-dihydrofuran followed by decomposition of the ozonolysis product obtained. The ozonolysis may be effected in an inert liquid organic medium such as a lower alkyl ester, a chlorinated hydrocarbon or a lower alkanol such as methanol or ethanol at a temperature below 0 DEG  C.  The ozonide may be decomposed by treatment with a tri-lower-alkyl phosphite, sulphur dioxide or by catalytic hydrogenation.  The alkali metal bisulphite derivatives may be prepared from diglycolaldehyde in known manner or by direct decomposition of the above ozonolysis product with an excess of an alkali metal bisulphite.  The diglycolaldehyde may also be prepared by hydrolysis of a tetra-acetal of the formula (RO)2CH.CH2.O.CH2.CH(OR)2 obtained by condensing an alkali metal derivative of the formula MO.CH2.CH(OR)2 with a halogenated acetal of the formula Hal.CH2.CH(OR)2.  The bis - 2,4 - dinitrophenylhydrazone derivative of diglycolaldehyde is also described.
Patent GB-1476464-A (GB)
Title: 9-tetrahydropyrimidinyl-and 9-imidazolinyl-fluorenols their preparation and their pharmaceutical compositions
IPC: C07D233/06
Filed: 1974-11-20
Abstract: 1476464 9 - (Tetrahydropyrimidinyl) - and 9 - (imidazolinyl)fluorenols, their preparation and their pharmaceutical compositions JOHN WYETH & BRO Ltd 30 Oct 1975 [20 Nov 1974] 50180/74 Heading C2C The invention comprises compounds of general Formula I and their pharmaceutically acceptable acid addition salts, wherein R<SP>1</SP> to R<SP>4</SP> are independently H, OH, C 1-6  alkyl, C 1-6  alkoxy, CF 3 , halogen, NH 2  or mono- or di-(C 1-6  alkyl)amino; R<SP>1</SP> and R<SP>2</SP> are independently H or C 1-6  alkyl and n represents 1, 2 or 3 which may be prepared by reacting a diamine of Formula III wherein A is a polymethylene chain of 2 to 4 carbon atoms substituted on the same or different carbon atoms by groups R<SP>5</SP> and R<SP>6</SP> as defined above, with an imidate of Formula IV in which R is C 1-6  alkyl, or an acid addition salt thereof or with an amidine of Formula V or an acid addition salt and if required oxidizing any product of Formula VI and, in either case, if necessary, converting the free base product to an acid addition salt or the acid addition salt product to the free base form. 9H - fluorene - 9 - carboximidic acid ethyl esters of Formula IV in which the fluorene system is substituted in both 2- and 7-positions by Cl or by Br or in the 2-position alone by Cl, CH 3 , C 2 H 5  or CH 3 O are prepared by reacting the correspondingly substituted 9H-fluorene carbonitrile with ethanol in the presence of hydrochloric acid. Pharmaceutical compositions having hypoglycemic acitivity for oral or parenteral application comprise a compound of Formula I or a pharmaceutically acceptable acid addition salt thereof together with a pharmaceutically acceptable carrier.
Patent GB-1037878-A (GB)
Title: Production of refractory silica articles
IPC: C04B35/14
Filed: 1963-12-20
Abstract: In the production of silica articles, an aqueous suspension of silica particles is flocculated by adding an ammonium salt, then formed into shape and fired.  The silica may be crystalline or vitreous, e.g. fused quartz, and may be mixed with water in a SiO2: H2O ratio of 1:1 to 5:1, then ball milled to give particles of size 1-15 m , preferably with over 50% in the 2-8 m  range.  The ammonium salt may be carbonate, nitrate, formate or acetate, and may be added, as a solid or in aqueous solution, in proportions of 0.05-1% by weight based on the silica.  The resulting paste may be cast in a mould, dried, removed, and fired at 800-1200 DEG  C.  The fired articles may be used for lining furnaces or may be impregnated with tar or pitch and used for lining iron-casting ladles or tapping nozzles.
Patent GB-1372032-A (GB)
Title: Switching devices
IPC: H03K17/80
Filed: 1971-10-26
Abstract: 1372032 Moving domain devices BRITISH STEEL CORP 26 Oct 1971 [27 Oct 1970] 50946/70 Headings H3B and H3X  An annular silicon steel body 2, Fig. 2, formed 'of a material having a Goss texture providing a boundary between magnetic domains, has two windings 12, 14, passing through apertures in the body. When winding 12 is energized it alters the domain structure in the body and causes the domain wall to move into or across the aperture 10, inducing a sharp voltage spike in winding 14. This voltage spike may be used for switching functions. The steel may be of the kind used in transformers, containing 3“% Si. The body is thicker in the region of aperture 10 than elsewhere to prevent flux leakage. The winding 12 may extend over the whole body. A plurality of apertures 10 with co-operating output windings may be provided so as to furnish a plurality of switching functions.
Patent GB-509994-A (GB)
IPC: G01B3/48
Filed: 1939-01-09
Abstract: 509,994. Testing pitch of helical grooves. MASCHINENFABRIK AUGSBURG - NURNBERG AKT.-GES. Jan. 9, 1939, No. 710. Convention date, Jan. 19, 1938. [Class 106 (ii)] Comprises a method of testing the pitch of helically extending grooves in bores in which the angular displacement of two points at a predetermined distance apart axially in the same groove is'continuously measured and recorded over the entire length of the bore, a curve being obtained which is compared with the ideal curve prepared from the prescribed pitch. A sleeve 1 is closed at the ends by plates 2, 3 to form a drum. The sleeve is surrounded at the ends by rings 4, 5 attached to it and further by axially slidable bushes 6, 7, the bevelled flanges 8, 9 on which enter into recesses in the rings and are pressed apart by a spring 12. The rings have bores arranged in pairs opposite each other in which brackets 19 slide having bevelled faces engaging the flanges, 8, 9 and carry rails 11 which are pressed against the bore by the spring 12. A sheet metal cylinder 13 covers the space between the rings. A partition wall 14 in the sleeve 1 affords a bearing for one end of a shaft 16, the other end of which is mounted in the plate 2. A lever 17 fixed to the shaft 16 passes through a slot in the ring 5 and carries a spring feeler pin 19. In the axial plane passing through the slot there is provided in the ring 4 a bore 21 in which a spring guide bolt 23 works with radial movement. On the shaft 16 is fixed an arm 24. A second arm 26 is arranged between two fixed semicircular plates 27, 28 with its inner end slotted to engage the squared end of a shaft 42. A pin 37 attached to the arm 26 is connected on the one hand by a spring 25 with arm 24 and on the other hand by a much stronger spring 33 to one arm 32 of a two-armed lever 31 the arm 34 of which passes with slight play through a bore in the ring 4 and carries a spring feeler 35. The shaft 42 may be turned from outside by the key 43 so that the pin 37 engages any of three notches each 90 degrees apart on the plates 27, 28. The shaft 16 is geared by toothed wheels 44, 45, 46, 47 to the pick-up 49 working over the resistance drum 50 of a telewriter. In use,. the pin 37 is placed in the central notch and the device inserted in the bore with feelers 19, 23 in the same groove and feeler 35 in a diametrically opposite groove. The key 43 is now manipulated to place the pin 37 in one of the other slots depending on which way the device is to be pulled through the bore. The spring 25 will turn the arm 17 so that it engages a flank. The drum 50 is adjusted by button 54 to turn the whole drum so that feeler 23 also engages the same flank. By moving the pin through 180 degrees the feelers impinge on the opposite flank. The drum 50 is adjusted by button 54 to the initial point of the chart and the device when pulled draws a curve from which comparisons with the ideal curve are made.
Patent GB-1364100-A (GB)
Title: Gas silnencer
IPC: F01N1/10
Filed: 1971-11-03
Abstract: 1364100 Silencing gaseous flow L W STEMP 2 Nov 1972 [3 Nov 1971] 51090/71 Heading F1B An exhaust gas silencer comprises inner and outer arcuate members 20, 20A and 34, 34A secured in radially spaced relation by plates 12 and 14. The arcuate members consist of an inner perforated wall 24 or 38 and an outer imperforate wall 22 or 26 with sound absorbing material 30 between the walls. Longitudinally extendings gaps 32 and 34 between the pairs of arcuate members 20, 20A and 34, 34A, between the ends of single inner and outer arcuate members (48 and 52), Fig. 3 (not shown) or between adjacent ends of trios of inner and outer arcuate members (58 and 60), Fig. 4 (not shown) provide flow paths for exhaust gases fed to the interior of the inner member or members to the space between the inner and outer members and to the exterior of the outer member or members. A casing 10 around the members directs the gas from the gaps 44 to an outlet 66. The ends of the walls 24 may be sprung against the ends 26 of the walls 22.
Patent GB-511162-A (GB)
Abstract: 511,162. Cosmetic preparations fatty and mineral oil compositions. CUTASY LABORATORIES, Inc. Oct. 20, 1937, No. 28582. Void. Convention date, Oct. 20, 1936. [Class 81'(i)] [Also in Group III] A composition for application to the skin and stated to promote perspiration comprises a mixture of 45 to 70 per cent. mineral oil, 13 to 25 per cent. petrolatum and 20 to 35 per cent. wax or waxes. The waxes employed may be paraffin wax, bees' wax, spermaceti and ozokerite. Animal or vegetable oils may be employed in place of mineral oil.
Patent GB-1041786-A (GB)
Title: Improvements in "composition and process"
IPC: C08L23/16
Filed: 1963-12-31
Abstract: A heat-vulcanizable composition comprises an ethylene/propylene copolymer, an alkenyl polysiloxane, an organic peroxide and optionally a filler.  Preferred composition components are methyl vinyl polysiloxane, bis-(alpha,-alpha-dimethylbenzyl)peroxide, and silica, carbon black or calcium carbonate.
Patent GB-1096738-A (GB)
Title: Improvements in motorized wheels
Inventor: HENDER BERKELEY STEPHENS
IPC: H02K7/14
Filed: 1965-12-03
Abstract: 1,096,738. Electric motor driving arrangements. AUSTIN CROMPTON PARKINSON ELECTRIC VEHICLES Ltd. Oct. 17, 1966 [Dec. 3, 1965], No. 51324/65. Heading H2A. [Also in Division B7] A motorized vehicle-wheel, e.g. for a battery electric vehicle, has a wheel 1 fixedly mounted on an electric traction motor frame 2 fitted with conventional polepieces and field windings 13, such frame and its associated armature 3 commutator 8 and brush gear 9 being mounted in bearings 4, 5 on an axle 6 that is either fixed to or lockable with a suspension assembly 7 carried by the vehicle underframe, and the armature drives the sun gear 10 of an epicyclic reduction gearing whose compound planet gears 11 are carried by the motor frame 2 and co-operate with a gear 12 that at least when driving is stationary relative to the vehicle. In the embodiment shown, the motor frame 2 carries a drum 16 or disc engageable by a brake mechanism 17, and the direction of wheel rotation is determined by selection of the polarity of either the field or armature connections. In the other embodiment, Fig. 2 (not shown), the axle (20) and its gear (26) are both separate, and rotatable, and lockable by clutches (23), (28) to the assembly (22); when both clutches are disengaged the motor may start off-load, engagement of one or the other clutches effects wheel drive in a desired direction, and engagement of both brakes the wheel.
Patent GB-1349096-A (GB)
Title: Electrically operated watch having means for increasing the power supply voltage
IPC: H02M3/338
Filed: 1971-11-04
Abstract: 1349096 DC-DC converting TIMEX CORP 4 Nov 1971 [5 Nov 1970] 51415/71 Heading H2F [Also in Divisions G3 and H3] In a watch, a circuit for increasing the voltage of a battery comprises a pulse generating oscillator powered by a battery 10 and coupled to a voltage increasing device 14. As shown, transistors 30, 31 are cross-coupled by means of capacitors 32, 33 and resistors 34, 36 so as to form a self-oscillating multivibrator in which transistors 30, 31 are alternatively saturated and non-conductive. When transistor 30 is saturated, transistors 43 and 44 are also saturated so that current flows from the battery 10 through transistor 44 and the voltage multiplier 14, back through the transistor 43 to the negative battery terminal. When transistor 31 is saturated, transistors 38 and 41 are saturated so that current flows in the opposite direction from battery 10 through transistor 38 and the multiplier 14 and back through transistor 41. The output of the voltage multiplier 40 may be between 5 and 30 volts from a 1À5 volt cell 10 and may be used to operate quartz oscillators and dividing circuits using field-effect transistors, solid state indicating systems or using liquid crystals. A stepped up A.C. supply may additionally be used to drive piezo electric or electrostatic motors to provide indication or alarm.
Patent GB-1184676-A (GB)
Title: Rotary Bladed Fluid Flow Machine, e.g. a Fan Lift Engine.
Inventor: PETRIE JAMES ALEXANDER
IPC: F02K3/068
Filed: 1967-10-06
Abstract: 1,184,676. Gas turbine Jet propulsion plant. ROLLS-ROYCE Ltd. Oct. 1, 1968 [Oct. 6, 1967], No. 52011/67. Divided out of 1,152,115. Headings F1G and F1J. A fluid-flow machine, e.g. a gas turbine ducted fan lift engine, has a cylindrical fixed outer casing, axially extending rotatable shafting disposed within the outer casing and carrying rows of blades at opposite ends, the shafting being mounted within and supported by one race of a single bearing, the other race of which is spaced therefrom by rolling elements and supported from the outer casing. A vertically mounted lift engine has a fixed outer casing 66 surrounding a fan 70 driven from an inner gas turbine engine 51. The latter comprises a fixed inner casing 54 surrounding low and high-pressure compressor rotors 57, 60 driven respectively by low and high-pressure turbine rotors 63, 62 through concentric shafts 64, 65. The fan 70 is driven from shaft 64 by way of a frusto-conical structure 71 at the upper end 72 of the shaft, first stage compressor blades 73 and rotatable ducting 74. The latter and hence the fan 70 and shaft 64 are supported solely by the outer race 75 of a ball bearing 76, the inner race 77 of which is carried by the inner casing 54 which in turn is supported from the outer casing 66 by radial struts 81. A gear-box 83 for ancillary equipment is connected to shafts 64, 65 by a shaft 82 passing through a strut 81. Further bearings 85 are provided at the lower ends of shafts 64, 65 but these bearings do not provide any support for shaft 64. A further embodiment, Fig. 1 (not shown), consists of a lift engine as described in Specification 1, 152, 115.
Patent GB-1160568-A (GB)
Title: Thermal Control and Power Flattening for Radioisotopic Thermodynamic Power System
Inventor: BIENERT WALTER BRUNO
IPC: G21H1/00
Filed: 1966-11-21
Abstract: 1,160,568. Nuclear power plant. MARTINMARIETTA CORP. 21 Nov., 1966, No. 52083/66. Heading G6C. In a radioisotope power plant the thermal energy produced by the fuel at the commencement of its life is in excess of the plant requirements and the surplus is removed by an isothermal cooling system in which the coolant flow is effected by capillary action. The cooling system comprises a tube, lined internally with a wick, which conveys the cooling liquid from a radiator to the fuel zone where it is evaporated. The coolant vapour returns to the radiator along the pipe interior. Control of the cooling rate is effected by restricting the flow of the cooling fluid in the tube. The flow of vapour to the radiator may be restricted by a non-condensing gas, the flow of coolant liquid in the capillaries may be restricted by the presence of a non-vaporizable liquid or a liquid may be added which solidifies and blocks the capillaries. The thermal energy converter may be either thermo-electric or thermionic and the helium formed by the alpha decay is vented through a semi-permeable membrane into the tube to function as a flow restricting gas.
Patent GB-1519548-A (GB)
Title: Vinylidene chloride coplymers
IPC: C08J7/052
Filed: 1976-12-14
Abstract: 1519548 Heat sealable coatings E I DU PONT DE NEMOURS & CO 14 Dec 1976 [15 Dec 1975] 52094/76 Heading B2E [Also in Division C3]  Base films such as regenerated cellulose and polyethylene terephthalate films are provided with impermeable heat sealable coatings of copolymers of (1) at least 88% vinylidene chloride (2) 2-4% methacrylonitrile, (3) 3- 6% methyl methacrylate and (4) less than 50% methacrylic acid, the ratio of (2):(3) being less than 1 and the copolymer being prepared by thermally initiated polymerisation at 70-85C.
Patent GB-1136472-A (GB)
Title: Improvements in and relating to tufted carpets
Inventor: CHOPRA SOHINDER NATH
IPC: D03D27/00
Filed: 1964-12-29
Abstract: 1,136,472. Tufted pile fabrics. CHEMCELL Ltd. 17 Dec., 1965 [29 Dec., 1964], No. 52691/64. Heading DIK. A base fabric for tufted pile carpeting is tightly woven from a warp of flat extruded monofils of polypropylene and a weft of low twist crimped continuous filament polypropylene yarn.