baber/WOPTO huggingface dataset:
Patent GB-681120-A (GB)
Title: Improvements in or relating to the preparation of copolymers of vinylidene cyanide
IPC: C08F4/34
Filed: 1950-09-12
Abstract: Copolymers of the structure -M1-M2-(-M1-M2-) -M1-M2-where each M1 is a vinylidene cyanide unit and each M2 is a unit of another monomer and X is a number, and where the other monomer is selected from (1) an olefin of the formula CH2 = C.R-CH3 or CH2 = CR-Ar, where R is hydrogen or alkyl and Ar is an aromatic radical; (2) a vinyl or isopropenyl ester of a saturated aliphatic monocarboxylic acid or an aromatic monocarboxylic acid; (3) an alkyl methacrylate; (4) vinyl chloride; (5) vinylidene chloride; and (6) a 2-halogenated mono-olefin, are made by polymerizing in bulk or in an organic solvent or diluent in the presence of a peroxygen catalyst, e.g. o,o1-dichlorobenzoyl peroxide.  Specified monomers are (1) propylene, isobutylene, 2 - methylbutene - 1, 2 - methylbutene-1, 2-methylpentene-1, 2,3-dimethylbutene-1, 2,3-dimethylpentene-1, 2,4-dimethylpentene-1, 2,3,3-trimethylbutene-1, 2-methylheptene-1, 2,3-dimethylhexene-1, 2,4-dimethylhexene-1, 2,5-dimethylhexene-1, 2-methyl-3-ethylpentene - 1, 2,3,3 - trimethylpentene - 1, 2,3,4 - trimethylpentene - 1, 2,4,4 - trimethylpentene - 1, 2 - methyloctene - 1, 2,6 - dimethylheptene - 1, 2,6 - dimethyloctene - 1, 2,3-dimethyldecene-1, 2-methylnonadecene-1, styrene, alpha-methyl or ethyl or butyl styrene, alpha-chlorostyrene, alpha-bromostyrene, 2,5-dichlorostyrene, 2,5-dibromostyrene, o-, m- or p-methoxystyrene, p-alpha-dimethyl styrene, p-methylstyrene, 3,4-dichlorostyrene, 3,4-difluorostyrene, o-, m- or p-fluorostyrenes, 2,6-dichlorostyrene, 2,6-difluorostyrene, 3-fluoro-4-chlorostyrene, 3-chloro-4-fluorostyrene, 2,4-dichlorostyrene, 2,4,5 - trichlorostyrene, dichloromonofluorostyrenes; (2) vinyl acetate or propionate or butyrate or isobutyrate or valerate or caproate or enanthate or bromoacetate, or alpha - chloropropionate, or alpha - bromopropionate, or alpha-iodopropionate, or alpha-chlorobutyrate, or alpha - chlorovalerate or alpha-bromovalerate, benzoate or nuclear substituted benzoate, e.g. by chlorine, bromine or methoxy or ethoxy radicals, isopropenyl acetate or propionate or butyrate or isobutyrate or valeronate or caproate, or benzoate or p-chlorobenzoate or o-bromobenzoate or m-chlorobenzoate, or toluate or chloroacetate or alpha-bromopropionate; (3) methyl or ethyl or propyl or butyl or amyl or hexyl or decyl or heptyl or octyl methacrylate; (6) 2-chloropropene, 2-chlorobutene, 2-chloropentene, 2-chlorohexene, 2-chloroheptene, 2-bromobutene, 2-bromoheptene, 2-fluorohexene, 2-fluorobutene, 2-iodopropene, 2-iodopentene, 2-iodoheptene. Solvents mentioned are benzene, toluene, methyl toluene, or trichlorobenzene.  Hexane and heptane are suitable diluents.  The copolymers may be made into films and fibres by hot melt or dry or wet spinning techniques.  The fibres may be cold-drawn. Specifications 653,468, 654,957, 667,276 and 673,722, [both in Group IV (b)], are referred to.
Patent GB-206928-A (GB)
Title: An improved protector covering for loose-leaf account and like books
IPC: B42D3/04
Filed: 1922-08-17
Abstract: 206,928. Bull, C. H. Aug. 17, 1922. Loose covers.-A protective cover for loose-leaf and other books comprises two pockets A, A<1> into which the book covers are slipped, these pockets being adjustably connected by means of flap extensions a, a<1> and an adjusting buckle F. The buckle F has three longitudinal bars B, C, D, to the first of which the flap a is secured by sewing. The flap a' is threaded through the slots formed by the bars and its loose end passed into the pocket A'. The buckle is preferably cranked transversely as shown in Fig. 3 so that both the backs can lie flat.
Patent GB-884683-A (GB)
Title: Improvements in or relating to soap feeding or dispensing devices
IPC: A47L15/44
Filed: 1959-07-01
Abstract: 884,683. Dish washing machines. SCHMIDT, G. C. June 30, 1960 [July 1, 1959], No. 22610/59. Class 138 (1). A device for feeding soap or a washing preparation in regulated quantity to the water of a dish washing machine or the like comprises a container 1 having one or more outlets 10, each fitted with a rotatable disc valve 11 provided with a series of holes of graduated size. The soap 9 is supported on a raised grid 4 fitted with a vent pipe 7. The container 1 is mounted in a tray 3, the base 16 of which is domed and has an outlet 17. The tray wall 19 is spaced from the container wall to form a channel which serves to collect the spray water from the washing machine. The collected water passes into the tray 3 and upwardly through the valves 11 to diffuse through the lower layers of the soap. The soapy water passes back through the valves into the tray and out through the outlet 17. Each valve disc 11 is rotatable about a bolt 15 and has a flanged edge 13 with a recess for finger engagement when a hole of different size is required.
Patent GB-903847-A (GB)
Title: Improvements in or relating to cooking utensils
IPC: A21B3/13
Filed: 1960-06-28
Abstract: 903,847. Baking pans. HARNY A.B. June 28, 1960 [June 30, 1959], No. 22661/60. Class 28 (1). A pan comprising three or more connected baking forms is formed by upper and lower parts having upwardly and downwardlyextending recesses with corresponding perimeters and at least one coinciding cut-out portion bounded by at least three baking forms. As shown, the bottom part 10 of the pan has frusto-conical recesses 11, 12, 13, 14 connected by webs 15, 16, 17, 18, and strengthening ribs 19, 20, 21, 22. The top part 30 consists of recesses 31, 32, 33, 34 which are connected by webs 35, 36, 37, 38 and which fit over recesses 11, 12, 13, 14. Apertures 23, 43 allow hot air to circulate round the forms. Handles 24, 44 fastened to webs 17, 37 has heat-insulating grips 25, 45. Parts 10, 30 are hinged together by hinge 50. In modifications, pans with seven or nine forms are described. The inner surfaces of the parts which may be of aluminium or aluminium alloy may be siliconecoated.
Patent GB-533225-A (GB)
Title: Improved de-icing apparatus for airscrews
IPC: B64D15/16
Filed: 1939-08-04
Abstract: 533,225. Variable-pitch airscrews. MILNER, H. L., and FAIRHURST, L. G. Aug. 4, 1939, No. 22714. [Class 114] A device for delivering de-icing liquid to the blades of a variable pitch airscrew comprises a chamber 27 surrounding and rotating with the air-screw shaft. De-icing liquid supplied to this chamber through the pipe 29 is delivered by the conduit 26 under centrifugal action to an inverted trough 19 mounted on the blade-root. The liquid travels along the trough under centrifugal action to the outlet 21, whence it is conducted to the blade by the tube 24 the lower portion of which carries a band surrounding the tube 21. In a modification, the liquid is directly delivered by a tube extending from the chamber 27 to a receptacle mounted on the blade-root. Specification 532,127 is referred to.
Patent GB-423370-A (GB)
Title: A method of preparing electrolytically produced nickel plates for use as anodes in electrolytic plating baths
IPC: C25D17/10
Filed: 1933-08-15
Abstract: Electrolytically produced nickel plates are prepared for use as anodes in plating baths by annealing them in a salt melt containing substances capable of dissolving oxide &c., adhering to the surface of the plates.  The melt may comprise sodium or potassium chloride or both, and a scavenging substances such as borax or other boron compounds, such as potassium tetraborate, boric acid or boron trioxide plus sodium metaborate in quantities up to 25 per cent by weight.  The plates are removed from the melt when in a red hot condition, and are then quenched.  In an example the melt comprises 50 per cent by weight of sodium chloride, 35 of potassium chloride and 15 of borax.
Patent GB-1357846-A (GB)
Title: Container base
IPC: B65D88/72
Filed: 1972-05-16
Abstract: 1357846 Mixing powders by gas currents POLYSIUS AG 16 May 1972 [23 Aug 1971] 22864/72 Heading B1C [Also in Division B8] Fluidising air passing through permeable areas of a container base causes fine dry material in the container to flow through apertures in the base member above feed channels, which are also connected to the source of fluidising air and are inclined downwards towards a central material collecting point. Fluidised material thus flows to the collecting point where it mixes with material from the other feed channels before discharge through an outlet either below the collecting point or at the periphery of the container base. In the figure, feed channels 8 are inclined towards collecting point 4 provided with outlet aperture 5. Generally permeable base member 7 is inclined at the same angle as the channels, the parts of the base member immediately above the channels being generally impermeable but provided with apertures 9 for the passage of fluidised material into channels 8.
Patent GB-1599547-A (GB)
Title: Air classification apparatus
IPC: B07B4/06
Filed: 1978-05-25
Abstract: An air classifier comprising a rotatable open-ended drum (3) disposed with its axis horizontal or substantially so, for receiving material to be classified, means (5) for creating a stream of air through the drum, means (1) (2) for introducing material to be classified into the drum at or near the upstream end thereof, means in the drum for conveying materially axially of the drum during rotation thereof, the conveying means being in the form of helical vanes (12) of mutually opposite hand arranged in an upstream part of the drum to convey "heavies" in counter-current to the stream of air through the drum and in a downstream part of the drum being arranged to convey "lights" in the direction of the air stream, the two helical vanes being separat- . ed by an annular member (13) which projects radially inwards from the inner periphery of the drum.
Patent GB-1516579-A (GB)
Title: Device for limiting the pitching of the cabin of a towing vehicle
IPC: B62D53/06
Filed: 1976-06-03
Abstract: 1516579 Mounting vehicle cabs USTAV PRO VYZKUM MOTOROVYGH VOZIDEL 3 June 1976 [11 June 1975] 22957/76 Heading B7D Pitching movement of a driving cab 1 resiliently mounted on the frame 3 of a towing vehicle having a semi-trailer 2 coupled thereto by a fifth-wheel coupling is limited by a coupling device which tilts the cab 1 relative to the frame 1 about a transverse axis when there is relative tilting of the frame 3 relative to the semi-trailer 2 about the transverse pivot axis 6 of the top plate 14 of the fifth-wheel coupling. A lever 4 pivotally mounted on the frame 3 is connected between the top plate 14 and a spring 9 supporting the rear of the cab 1 so that when the vehicle passes over an uneven surface and the front part of the frame 3 is higher than the rear part, as shown, the rear of the cab 1 is raised as the frame 3 tilts relative to the semitrailer 2. A locking spring acts on the lever 4 or an additional spring supports the cab 1 to limit tilting of the cab when the semi-trailer is uncoupled from the vehicle. Instead of or in addition to the lever 4 there may be a lever connected between the front end of the cab 1 and the rear of the top plate 14. Both ends of the cab 1 may be supported by a lever pivotally mounted on the frame 3 between those ends and connected to the top plate 14. A verticallyextending lever rigidly connected to the top plate 14 may be linked to the rear of the cab 1 by a pull rod.
Patent GB-663139-A (GB)
Title: Improved device for filing drawings or other sheets in suspended arrangement
IPC: B42F15/06
Filed: 1949-09-05
Abstract: 663,139. Filing papers. CORNET, J. H. Sept. 5, 1949 [Sept. 4, 1948], No. 22976/49. Class 146 (i). A suspension device for filing drawings or like sheets comprising at least two mutually parallel rectangular frames, each of which is fixed 'with one short side to a stationary wall, the two arms of each consisting of two telescopic parts and the total length of the lower arm being such that when the frame is fully extended, the lower arm has a gap through which the drawings may pass. The frames may be secured to the back wall 4 of a cabinet by the side 9, the cabinet having a hinged top wall 6 resting on a frame 5 and being closed by hinged doors, which hinges may be part-way back on the sides 3 of the cabinet to facilitate inspection of the drawings, or by a flexible door on guides or by a curtain. The top arm consists of telescopic parts 10, 11, the part 10 having an enlargement 20 fitting exactly the tubular part 11 which has an enlargement 21 fitting exactly the part 10 so that when the frame is extended, the parts 20, 21 engage and form a reinforcement. The lower arm consists of telescoping parts 12, 13, the lengths being such as to leave a gap 22 when the frame is extended as shown. The parts 11 and 13 are joined by the side 14 to which a handle 15 is secured. The top arm is given support at the front of the cabinet by supports 16 secured by angle irons 17, 18 to the frame 5, ball bearings 19 being provided to assist the sliding of the part 11. The arm parts 10, 11 and 12, 13 may be retained in a partly opened condition with the lower arm parts 12, 13 just overlapping by a spring-pressed pawl 23 in the enlargement 20, which enters an opening 24 in the arm part 11.
Patent GB-165350-A (GB)
Title: Improvements in transferring mechanism for bottles and other articles
IPC: C03B35/06
Filed: 1920-08-05
Abstract: 165,350. Haddan, A. J. H., (Owens Bottle Co.). Aug. 5, 1920. Feeding-devices for endless - chain conveyers. - Relates to apparatus for transferring bottles or other articles and is described as applied to the transfer of bottles from a blowing machine to the annealing leer. The bottle 5 is discharged from the blow mould 6 head first down a shoot 7 from which it jumps on to a shoot 18, which delivers it in an upright position on to an endless chain conveyer 13. A pivoted spring plate 24 and a spring buffer plate 26 are provided to assist in placing the bottle 5 without shock on the conveyer 13.
Patent GB-667795-A (GB)
Title: Apparatus for producing a jet of heated gas
IPC: F24H3/04
Filed: 1949-09-06
Abstract: 667,795. Heating gas electrically. COMMUNICATIONS PATENTS, Ltd., HAIM, G., JACKSON, R. D. C., and ZADE, H. P. Sept. 26, 1950. [Sept. 6, 1949] No. 23091/49. Class 39(iii). A hand-manoeuvrable gas heating device includes a tube 6 housing a resistor 17 of the tubular vitreous-enamel-coated type, and which is supplied with power from terminals 11. A supply cable 13 and a gas feed tube 14 pass through a handle 1, and gas passes centrally through the resistor and between the resistor and the tube 6 and through an outlet nozzle in a removable tube 16.
Patent GB-1117166-A (GB)
Title: Method and apparatus for lining fluid control valves
Inventor: CARRIE WILLIAM DEAR
IPC: B29C45/14
Filed: 1966-05-24
Abstract: 1,117,166. Valves. CRANE Ltd. 24 May, 1966, No. 23167/66. Heading F2V. [Also in Division B5] A rubber or synthetic plastics combined valve body lining and seat is moulded in situ within a butterfly valve body VB which is located between a lower mould member 2 and an upper mould member 4, which respectively engage at a face 7 of the lower member 2 at a spigot 5 and recess location to define a main mould core 2; flats 6 are provided on opposite sides of core 2 to form bearing surfaces for co-operation with the flat ends of the valve closure disc, when assembled, and an enlarged portion 27 of the upper core member 4 rests upon the body VB which is formed with a recess 31 at each end and, in turn rests upon the outer annular surface 8 of the lower mould member 2 whereby circular serrations 29, 32, on the upper and lower core members 4, 2, define a ribbed gasket face on each valve body flange of the completed moulding. The valve body VB is provided on either side with inner and outer side core members 9, 14 to define valve actuating shaft bores 9, 14 and between which members may be located valve 0-ring seal retainer inserts 11, and members 9 also locate within members 14 which in turn locate at valve body shoulders 19 whereby, when pressure is exerted on members 14 by push rod plungers 16, the valve body VB is accurately centred with respect to core members 2, 4. With a pair of single side core members (14) (Fig. 7, not shown), the inserts may be provided with cylindrical extensions (20) in contact with the flats (6) on core 2. The upper core member 4 is provided with a reservoir 25, containing moulding material, which is heated and then forced by a fluid pressure actuated ram 26 through holes 24 into the mould cavity. The valve body recesses (31) may alternatively receive a turned lip portion (33) of the mould core members (Fig. 6, not shown).
Patent GB-1442227-A (GB)
Title: Waveguide filter
IPC: H01P1/16
Filed: 1974-05-23
Abstract: 1442227 Harmonic filters for waveguides AMANA REFRIGERATION Inc 23 May 1974 [4 June 1973] 23172/74 Heading H1W [Also in Division H5] A low-pass filter for use, e.g. in the input waveguide 62 of a microwave heating oven, comprises a conductive member 78 having transverse ribs 80, 82 and, in each rib, a number of slots 158, corresponding slots in the different ribs being aligned. It is stated that the slots are effective in suppressing TE n0 -mode energy where n is equal to the number of slots in each rib; i.e. the arrangement shown is for suppression of the TE 40  mode. The filter is otherwise identical to that shown in Specification 1,399,043 which provides a stop-band whose lower cut-off is above a chosen frequency but below the harmonics thereof.
Patent GB-1449996-A (GB)
Title: Arrangement for audio-frequency switching in am-fm receivers
IPC: H04B1/16
Filed: 1974-05-23
Abstract: 1449996 AM-FM reception; muting BLAUPUNKT-WERKE GmbH 23 May 1974 [23 May 1973] 23187/74 Headings H3R and H3T In an AM-FM receiver, the F.M. discriminator 1 feeds via capacitor 2 into an-emitterfollower 3, the emitter of which supplies an audio output via capacitor 22. The emitter resistor 13 of the emitter-follower 3 forms the load resistor of the AM detector 8. On F.M. a power supply is applied to terminal 6, e.g. from the switch energising F.M. circuits and the D.C. bias developed across resistor 13 biases back the A.M. detector diode 8. On A.M. the supply to terminal 6 is switched off; transistor 3 is then inoperative, the bias developed across resistor 13 by diode 8 being additionally in such sense as to bias the emitter base circuit of transistor 3 off. A diode 16 provides muting; when switch 18 is closed, the positive potential at terminal 19 is applied to a potentiometer comprising resistors 17, 20 and biases diode 16 conductive. Both transistor 13 and diode 8 are then biased to cutoff. In a modification, resistor 17 is connected directly to the terminal 19 and the switch 18, which now provides muting when it is open, is in series with resistor 20 (Fig. 2, not shown); the switch 18 may comprise a transistor. The following abridgments are included in this series since the Specifications were through an error, not allotted to this group. References to them will be found in the name index to this volume.
Patent GB-808336-A (GB)
Title: Sulfactive hydrogenation catalyst
Inventor: MASON RALPH BURGESS
IPC: B01J23/755
Filed: 1957-07-23
Abstract: Hydrogenation catalysts are prepared by at least partially reducing a higher oxide of chromium, molybdenum, tungsten, cobalt or nickel with hydrogen to a lower oxide and sulphiding the reduced oxide.  The preferred starting oxide is molybdenum trioxide which may be supported on charcoal and prepared for example by heating charcoal, impregnated with an ammonium molybdate solution, to 200-350 DEG  F.; this may be reduced at 300-1000 DEG  F. and 200-3000 p.s.i.g.  The reduced oxide can then be sulphided with gaseous hydrogen sulphide or a solution of hydrogen sulphide in an inert liquid such as varsol or virgin naphtha or with carbon disulphide.  The molybdenum sulphide catalyst produced is particularly useful in the hydrogenation of aldehydes to alcohols (see Group IV (b)), and in an example the molybdenum oxide used for this purpose is compounded with oxides of zinc and magnesium.ALSO:Alcohols are produced from aldehydes formed by the carbonylation of olefines by liquid phase hydrogenation in the presence of a molybdenum sulphide catalyst supported on charcoal prepared by reducing with hydrogen preformed pellets of activated charcoal supporting a minor proportion of molybdenum trioxide to convert at least part of the oxide to an oxide in which the metal is at a lower valence state and sulphiding the hydrogenated product (see Group III).  Conditions for the hydrogenation may be 2500-4500 p.s.i.g. and 400-600 DEG  F. with a liquid feed rate of 0.25-2 v./v./hr. and a hydrogen feed rate of 5000-20,000 cu. ft. per barrel using a catalyst containing 1-10 per cent molybdenum sulphide based on the carrier.  Up to 8-10 per cent of water may also be added to the hydrogenation zone.  The reduction of C8 aldehydes is exemplified.  The alcohols produced are of low sulphur content and suitable for the preparation of plasticizing agents.
Patent GB-879621-A (GB)
Title: Improvements in or relating to gas turbine engines
Inventor: SHERLAW WILLIAM
IPC: F02C7/047
Filed: 1959-07-07
Abstract: 879,621. Gas-turbine plant. ROLLSROYCE Ltd. July 1, 1960 [July 7, 1959], No. 23273/59. Class 110 (3). A gas-turbine engine comprises ducting, arranged to be supplied with air which has been compressed by the compressor of the engine and heated thereby, which ducting supplies heated air to heat the interior of the compressor blading of the engine or a strut extending across the air intake of the engine or both so that heated air passes through the blading or strut radially inwardly and then radially outwardly by way of adjacent passageway and thereafter to supply heated air to the leading edge of the intake. The invention is described with reference to a by-pass gas-turbine engine having high and low pressure compressors driven independently by high and low pressure turbines. Compressed and heated air from the discharge of the high-pressure compressor is fed through a control cock and duct 33 to the central chamber 28 of a manifold 25 surrounding the intake of the compressor casing 22. Some of the air from the chamber 28 flows radially inwards through the tube 35, Figs. 2 and 4, and is then divided so as to flow radially outwards over the leading and trailing edges into the upstream chamber 27. The inner ends of the struts 24, which are arranged tangentially to the shaft 18 to minimize the risk of buckling when heated, are contiguous and communicate with each other by holes 39 to ensure that the pressures within the various struts are the same. Heated air from the inner end of each strut 24 may flow through a tube 43 and over the walls 41, 42 of a bullet-shaped intake baffle 40. Each of the stator blades 26 is hollow and has a tube 46 mounted within it to separate the chambers adjacent the leading and trailing edges. Heated air from the chamber 28 flows radially inwards over the leading edge and radially outwards over the trailing edge and into the chamber 29 through holes 47. A duct 48 connected to the chambers 27, 29 supplies hot air to a manifold 49 having ports 51 communicating with a channel 52 formed between the leading edge 50 of the casing and a baffle 53. The heated air may be returned to the intake of the compressor through holes 54 or ejected overboard.
Patent GB-1528447-A (GB)
Title: Skating surfaces
IPC: E01C13/10
Filed: 1977-06-02
Abstract: 1528447 Skating surface ALL SEASONS RECREATION INC 2 June 1977 23349/77 Heading A6D A surface on which ice skating may be performed is provided by a plurality of flat panels, e.g. of the type disclosed in Specification 1526706, to which a lubricating and heat dissipating agent has been applied, e.g. by spraying. The agent comprises either water and glycerine or water and a glycol. Preferred glycols are specified.