baber/WOPTO huggingface dataset:
Patent GB-1027690-A (GB)
Title: Production of vinyl chloride polymers
IPC: C08F14/06
Filed: 1963-07-09
Abstract: Vinyl chloride or a mixture thereof with a copolymerizable monomer is polymerized in aqueous suspension in the presence of a non-ionic, water-soluble, hydrophilic colloid and as catalyst 0.015 to 0.045% by weight, based on the monomer, of an acyl persulphonate of formula RSO2OOCOR1, where R is alkyl or cycloalkyl and R1 is alkyl.  R may be n-heptyl, n-hexyl, cyclohexyl or methylcyclohexyl and R1 may be methyl. Specified colloids are polyvinyl alcohol and methyl hydroxypropyl cellulose, which may be used with fatty acid esters of ethylene and propylene glycols and polymers thereof, sorbitol and mannitol and inner ethers thereof, and glycerol.  Examples describe the polymerization of vinyl chloride in the presence of acetyl cyclohexane persulphonate and (I) methyl hydroxypropyl cellulose and methyl glycoside dilaurate; (II) polyvinyl alcohol and sorbitan monolaurate; (V) methyl hydroxypropyl cellulose, sorbitan monolaurate and lauroyl peroxide; (VI) polyvinyl alcohol with and without glycerol monostearate or sorbitan monolaurate, or methyl hydroxypropyl cellulose with and without glycerol monostearate or methyl glucoside dilaurate; and (VII) polyvinyl alcohol with and without sorbitan monolaurate, or methyl hydroxypropyl cellulose and sorbitan monolaurate or methyl glucoside dilaurate; and the polymerization of vinyl chloride in the presence of methyl hydroxypropyl cellulose, methyl glucoside dilaurate and (III) acetyl hexane persulphonate and (IV) acetyl heptane persulphonate.
Patent GB-535343-A (GB)
Title: Improvements in or relating to permanent magnet alloy and method of making the same
IPC: C22C38/16
Filed: 1939-10-04
Abstract: 535,343. Alloys; annealing. INDIANA STEEL PRODUCTS CO. Oct. 4, 1939, No. 27204. Convention date, July 17. [Classes 72 and 82 (i)] Permanent magnets are made from iron alloys containing 17.5-18.5 per cent. of nickel, 8,5-9,5 per cent. of aluminium, 9.5-10.5 per cent. of cobalt, and 4-6 per cent. of copper. The alloys are cast below 2700‹F., heated at 1500-1800‹F. for 1-3 hours cooled to below 950‹F. at an average rate of not more than 2‹F. per minute, machined, heated at 2000-2300‹F, per “-1 hour, cooled to below 1250‹F, at 5-100‹F. for second held at 1000-1250‹F. for 1-10 hours, and cooled in air. Specification 431,660 is referred to.
Patent GB-1505319-A (GB)
Title: Television system
IPC: H04N7/085
Filed: 1976-06-30
Abstract: 1505319 Television INTERNATIONAL STANDARD ELECTRIC CORP 30 June 1976 [3 July 1975] 27250/76 Addition to 1481874 Heading H4F The television system of the parent Specification in which additional sound signals in digital form are transmitted during extended back porch periods after the colour bursts with a start pulse preceding the first digital pulse thereof, is modified so that for monochrome transmission a reference signal of burst frequency is transmitted instead of each burst. At the receiver this reference signal is used to decode the additional sound signals during monochrome transmission and the difference between the reference signal and the burst signal is detected and used to switch off the chrominance channel in the receiver to thereby permit troublefree monochrome reception. For PAL colour signals the effect of the absence of the swinging colour burst frequency component of half line frequency is to switch off the chrominance channel.
Patent GB-1298345-A (GB)
Title: Non-reciprocal microwave transmission device
IPC: H01P1/387
Filed: 1969-11-21
Abstract: 1298345 Circulators and isolators WESTERN MICROWAVE LABORATORIES Inc 21 Nov 1969 [21 Nov 1968] 27522/72 Divided out of 1298344 Heading H1W A circulator or isolator is provided with a layer or layers of lossy material to prevent propagation of unwanted modes in the upper region of the operative frequency band. The circulator of Fig. 9 comprises a three-armed circuit member 30 located between a pair of ferrite discs 33, 35, a pair of ground planes 37, 39 and a pair of layers 41, 43 of lossy material. Either or both of the ground planes are provided with slits 50 (shown in detail in Fig. 10) spaced apart by approximately one quarter wavelength and following the configuration of the edges of the circuit member 30. The slits are effective to suppress transverse currents associated with unwanted TE modes of propagation. In the modification of Fig. 11, layers 45 of lossy material are disposed on ferrite disc 49 in the same plane as the circuit member 47. They are close enough to the circuit member to absorb the undesired TE mode without affecting the desired TEM mode. In a further modification, part of the ferrite disc underlying one arm of the circuit member is replaced by lossy material which forms an internal termination for that arm. The device then behaves as an isolator. It is stated in the Specification that the internal load of lossy material is effective to prevent unwanted moding. The isolator of Fig. 17 incorporates a planar circuit member 72<SP>1</SP> having input/output arms 74<SP>1</SP>, 76<SP>1</SP> and a central portion 721 bounded by arcuate edges 73<SP>1</SP>. The latter forms the dissipative port of the isolator and is underlaid by a layer 88<SP>1</SP> of lossy material. The region of width Z between the input and output ports is underlaid by a layer 86<SP>1</SP> of ferrite. The mode of operation of circulators and isolators using circuit members of this and other configurations described in the Specification (see Figs. 12, 14, not shown) is more particularly described in Specification 1,298,344.
Patent GB-855839-A (GB)
Title: Improvements in or relating to the treatment of petroleum oils
IPC: C10G11/00
Filed: 1958-08-28
Abstract: <PICT:0855839/III/1> Petroleum oils containing a small amount of materials boiling below 250 DEG C., e.g. residues resulting from the distillation of petroleum at 250-400 DEG C., are cracked to form lower boiling hydrocarbons by removing water from a lumpy solid fuel containing water and substances which form bitumen at elevated temperature, mixing the fuel with the oil, heating to a temperature, e.g. above 400 DEG C., above the level at which bitumen is liquefied but under such pressure that the bitumen does not vaporize, separating the solid fuel now containing oil in its pores and treating the fuel at 0.5-5 ats. and not less than 500 DEG C. to convert the oil to high grade hydrocarbons.  The fuel may be oil shale, brown coal or peat which contains silica and/or alumina which has a catalytic effect on the cracking.  The fuel may be dried by heating in the oil to be cracked.  The fuel will generally contain sufficient oxygen which reacts exothermically with the carbon to produce sufficient heat for the process.  Oil to be treated is introduced by line 2, heated to about 350 DEG C. and mixed with fuel crushed to an average grain size of 6 mm.  The pressure is maintained at about 20-30 ats. which permits vaporization of water but not of oil nor the liquefaction of bitumen.  In the ring 5 the fuel loses water which forms steam and escapes by pipes 29 while the fuel sinks through pipes 6 to pipe 8 where it is entrained by a circulating stream of oil at 300-350 DEG C. which carries the fuel up the riser 7 where all remaining water is driven from the fuel. Steam escapes through valve 12 and the fuel and oil pass by pipe 13 to hydroclone 30 where solid and liquid are separated.  Liquid leaves by pipe 37, part being recycled by pipe 38 to pipe 8, the remainder passing by 39 to be heated and remixed with the solid to be treated in riser 33 where at a temperature just above 400 DEG C. impregnation of the fuel occurs with the liquefaction of bitumen. Liquid and solid are again separated in hydroclone 14, liquid being recycled by pipe 25 and solid passing to the reactor 16. Here the pressure is reduced to 0.5-5 ats. and the solid heated to 500 DEG C. or higher.  The solid passes downwardly over rotating circular plates which comprise annular segments and gaps angularly displaced from one to the next. Stationary scrapers cause the solid to pass through the gaps to the plate below. Solid is withdrawn at the bottom by outlet 23 and the gaseous product by the annular gap 24.  If desired, part of the coal product can be partially burned to heat it and recycled to the top of the reactor to supply heat for the reaction.
Patent GB-955915-A (GB)
Title: Improvements in or relating to clutch arrangements
Inventor: KRATZSCH HELMUT
IPC: F16D21/06
Filed: 1962-07-19
Abstract: 955,915. Friction clutches. TRAKTORENWERK SCHONEBECK VEB. July 19, 1962, No. 27775/62. Heading F2C. A selectively-operable double friction clutch for connecting an engine-driven flywheel 1 to either or both of two concentric output shafts 2, 3 (Figs. 3, 4, not shown), or, as shown, 3, 2, driving respectively a power take-off and the road wheels of a tractor comprises two conical or, as shown, flat-driven plates 5, 4, splined on the output shafts 3, 2 and clamped against the flywheel 1 and a cover 9 thereof by spring-urged presser plates 8, 12, levers 14 operable to withdraw first the road wheels presser plate, 12 as shown, and then additionally the power take-off presser plate, 8 as shown, and levers 17 operable to withdraw the power take-off presser plate irrespective of the withdrawal of the road wheel presser plate. After withdrawal of the power take-off presser plate by the levers 17 the road wheels presser plate may be withdrawn by the levers 14. As shown, the presser plates 8, 12 are urged apart by springs 20 and the presser plate 8 is additionally leftwardly urged by springs 21 coaxial with those 20 and reacting on the cover 9. The presser plates 8, 12 are connected to the levers 14 by studs 15, 13 having fulcrum nuts 16 and pivot-pins 32 about which the levers 14 successively pivot whilst successively acting on the presser plates 12, 8. The presser plate 8 is connected to the levers 17 by studs 18. Axial displacement of the presser plates 12, 8 is limited by threaded studs 26, 29 having lock nuts 27, 30. The levers 14, 17 are respectively actuated, through release bearings 25, 24, by operating levers 23, 22, the latter being controlled by a pedal or hand lever detent-locked in its operated position for continuous interruption of the power take-off drive. In Figs. 3, 4 (not shown), the presser plate 12 is acted on by the additional springs 21 and is connected to the levers 17.
Patent GB-1453879-A (GB)
Title: Photographic material with improved properties air outlet nozzles
IPC: G03C1/34
Filed: 1974-06-24
Abstract: 1453879 Stabilized photographic emulsions AGFA-GEVAERT AG 24 June 1974 [27 June 1973] 27850/74 Heading G2C A light-sensitive photographic material containing at least one silver halide emulsion layer also contains in any of the layers a homopolymer or random copolymer of any of the general Formulae:- in which R 1  represents hydrogen, a straight or branched chain alkyl group, a substituted or unsubstituted aryl group, a cyanoalkyl group or the group -CO-NHR 2 ; R 2  represents hydrogen, a straight or branched chain alkyl group, a cycloalkyl group, a substituted or unsubstituted aryl group or an alkoxy alkyl group, z represents a residue of an acrylic methacrylic, fumaric or maleic acid or an ammonium or alkali metal salt thereof; an acrylamide or methacrylamide residue; an N-alkyl acrylamide or methacrylamide residue; an N-hydroxyalkyl acrylamide or methacrylamide residue; an N-oxoalkyl acrylamide or methacrylamide residue; the residue of a fumaric or maleic acid semiamide or an ammonium or alkali metal salt thereof; the residue of a mono or di-hydroxyalkyl acrylate or methacrylate; the residue of a dialkylaminoalkyl acrylate or methacrylate; the residue of a sulphoalkyl-carboxylate or a vinyl pyrrolidone, vinylcaprolactam, vinyl-pyridine or vinyl imidazole; Y represents a polymerizable group selected from the residues of styrene, an acrylic acid ester or the compound CH 2 =C(CH 2 -O-CO-R 3 ) 2  in which R3 represents an alkyl group; x = 3 to 20; n = 5 to 99À5 mols % and m = 95 to 0À5 mols % when p = o and n = 5 to 80 mols. % and m = 50 to 10 mols. % and p = 45 to 10 mols. % when p # 0. The polymers prevent fogging during prolonged storage or at elevated temperatures.
Patent GB-901149-A (GB)
Title: Improvements in fusion welding
Inventor: TOMKINS ALAN GORDON
IPC: B23K11/087
Filed: 1959-08-14
Abstract: 901,149. Welding by fusion; angular bending; shearing. BRITISH OXYGEN CO. Ltd. Aug. 11, 1960 [Aug. 14, 1959], No. 27856/59. Class 83 (4). In fusion butt welding sheet or strip, each of the workpieces is bent along a line parallel to its edge to be welded, the workpieces are positioned on a backing member with their bent edges in abutment and projecting towards the backing member and a heat source is passed along the joint. Brass strips are so welded end-to-end to form a longer strip in apparatus comprising an unwinding reel 11, Fig. 1, feeding and straightening rolls 12, a bending and shearing device 13, feeding rolls 16, 17, a welder 14 and a power-driven coiling device 18. The joint is made at an -angle of 70-90 degrees to the strip axis. The trailing end of one strip and the leading end of the other are fed into bending and shearing machines 31, 32, Fig. 3, which may be combined in a single device 13 or be positioned on opposite sides of the welder 14, and which form flanges about 3/16inch wide turned down 3-10 degrees and extending obliquely across the strips. The flange is formed between a fixed die 37 and an hydraulically actuated die 36, and the end is sheared while the strip is held between the dies 36, 37 by an hydraulically actuated blade 33, The strips are subsequently separated and one is fed by the rolls 16 to butt against a pivoted stop 61, Fig. 5, located in a groove in the backing bar 59 in the welder and is clamped by a pivoted clamp 54 actuated against the action of a spring 55 by an inflatable hose 56. The stop 61 is swung clear and the other strip is fed by the rolls into butting engagement and is similarly held by a clamp 53. Welding is effected by an inert gas shielded non-consumable electrode welding head running on rails 63. Hydraulically actuated guides 19 engage the edges of the strip. The rollers 16, 17 are driven by electric motors through a slipping clutch which enables the strips to be firmly butted against each other or the stop 61. The lower roller of each pair is hydraulically adjustable to cater for different thicknesses of strip. In a modification, a stop 90, Fig. 6, is positioned in the backing bar 59 and with the backing bar forms a groove 93 to receive the bent edges of the strips. An hydraulic cylinder raises the stop 90 when required.
Patent GB-689712-A (GB)
Title: Improvements in and relating to thixotropic compositions
IPC: C09D167/08
Filed: 1950-11-15
Abstract: The thixotropic compositions of Specification 689,711 are modified by using as the fillers powdered silica aerogel or expanded powdered vermiculite.  Non - thixotropic compositions containing powdered flint or mica are also described.
Patent GB-1109967-A (GB)
Title: Plug and socket connection
IPC: F16L37/113
Filed: 1966-06-23
Abstract: 1,109,967. Pipe connections. VDO TACHOMETER WERKE ADOLF SCHINDLING G.m.b.H. 23 June, 1966 [3 July, 1965], No. 28073/66. Heading F2G. In a plug-and-socket connection between the stub pipe 2 of a tachometer and the end sleeve 1 of a protective hose for a driving shaft, the sleeve has a conical opening for connection to the conical extension 2a of the pipe 2 and a collar 1a against which bear resilient tongues 3a integral with a cap 3 having studs 3b engageable in bayonet slots 2b; in assembly, the studs 3b pass through recesses 1bin the collar 1a and into the bayonet slots 2b, and after rotation of the cap the tongues 3a urge the studs into the extensions of the slots.
Patent GB-394535-A (GB)
Title: Improvements in or relating to tractor couplings for tractordrawn and tractor-operated implements
IPC: B62D53/02
Filed: 1932-10-08
Abstract: 394,535. Couplings for tractors; driving external machines. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN, Ltd., 259, City Road, London.- (International Harvester Co. ; 606, South Michigan Avenue, Chicago, U.S.A.) Oct. 8, 1932, No. 28081. [Classes 79 (ii) and 79 (iii).] A coupling for tractor-drawn and operated implements comprises a draft portion permitting movement about a transverse axis, a longitudinal horizontal axis and a vertical axis to the rear of the transverse axis, and a power portion consisting of a driving shaft, an inter. mediate shaft and a driven shaft normally in alignment and connected together by universal joints approximately equidistant from the vertical axis which is normally approximately in the same vertical plane as the intermediate shaft. As shown applied to a harvester thresher 18 operated by a tractor 11, the coupling comprises a member 25 which houses a pin 24 connecting members 21, 23, attached by bars 20, 22 to the thresher and supports a shaft 26 engaging a sleeve integral with a frame 27. This frame is provided with arms 271 which are connected to a frame 29 secured to a draw bar 13 by pins 33 engaging ears 28<1> on the arms. The operating shaft 39 of the thresher is driven from the shaft 17 of the tractor through universal joints 35, 38, connected by telescopic shafts 36, 37.
Patent GB-140349-A (GB)
Title: Producing colored photographs or kinematograph films
IPC: G03C7/26
Filed: 1919-01-07
Abstract: 140,349. Finnigan, W., and Rodgers, R. A. Jan. 7, 1919. Colour photography.-For the production of colour photographs, two negatives are simultaneously exposed without the use of any colour filters, the negatives having their emulsion surfaces in contact, and the front negative being taken on an ordinary sensitive plate or film and the rear negative on to panchromatic plate or film. In the case of Kinematograph films, the two films are fed synchronously through the gate. From the negative on the front ordinary plate, a positive is pointed and toned to a pink-red tint, and from the negative on the panchromatic plate a positive is printed and toned to a blue-green tint. The two positives are superposed in register. Alternatively. the blue-green positive print may be resuscitated and a second print in superposition made from the negative on the ordinary plate or film and toned to a pink-red tone. For the panchromatic plate, a bath containing pinacyanol, pinaverdol, and fuschine may be used. Reference has been directed by the Comptroller to Specification 134,238.
Patent GB-446475-A (GB)
Title: Apparatus for feeding animals
IPC: A01K5/02
Filed: 1935-10-15
Abstract: 446,475. Feeding - appliances for animals. LECHEVALIER, J. E., 9, Avenue MarÚchal Joffre, Bolbec, Seine-InfÚrieure, France. Oct. 15, 1935, No. 28401. Convention date, Oct. 15, 1934. [Class 5 (ii)] Apparatus for feeding animals comprises a hopper 6 mounted in an oscillatory manner over a trough 12 with the mouth 7 of the hopper in proximity to the bottom of the trough, in combination with another hopper 13 of large capacity mounted above the hopper 6, distributing means, such as a chambered cylinder 15 being provided between the hoppers so that the amount of food delivered to the lower hopper can be regulated. The cylinder 15 can be rotated to deliver the contents of one chamber to the hopper 6 by means of a pawl lever 17. The hopper 6 is carried by a shaft 5 mounted in the ends of levers 4<1> which are adjustably mounted to vary the height of the bottom of the hopper 6 above the trough. The sides 10<1>, 10<2> of the trough are adjustable, to enable the width to be varied to suit the size of the animals.
Patent GB-847977-A (GB)
Title: Coffee making apparatus
Inventor: TOTTEN GILBERT VON POST
IPC: A47J31/40
Filed: 1958-09-04
Abstract: 847,977. Coffee making apparatus. AUTOMATIC CANTEEN CO. OF AMERICA. Sept. 4, 1958, No. 28411/58. Class 129. [Also in Group XXX] A coffee infusion tank 21 has, in its upper part, a cover member 29 defining two separate chambers 32, 33 which respectively receive water and ground coffee and discharge liquid, the cover extending downwardly below the level at which liquid is discharged and filter means 44 being provided beneath the cover to separate the chambers. As shown tank 21 rests on an electric hot plate 26 and has an overflow port 28. The cover 29 comprises a bottom wall 30 and upright walls 31 and has flanges which rest on the front and rear walls of the tank between which it fits. Port 28 has a spout 35 closed by a solenoid flap valve 36 operated by solenoid 39 and discharges into a receptacle 41 with a drain tube 47. Filter 44 consists of fine mesh screening 45 in a frame. A water boiler 20 is connected to a constant water supply and supplies hot water to chamber 33 through supply line 49 controlled by an electrically operated valve 51. Ground coffee is dispensed from a hopper 54 (Group XXX) through a circular opening 59 normally closed by a tapered cone 61 which can be opened through a linkage connected to an armature 71. An electric motor 11 drives a shaft 12 carrying cams 14, 15, 16 which close switches 17, 18, 19 which respectively cause hot water to be supplied to the tank, coffee grounds to be supplied to the tank and the discharge valve to be opened.
Patent GB-1463029-A (GB)
Title: Article transfer apparatus
IPC: B65G47/91
Filed: 1975-07-07
Abstract: 1463029 Transferring articles between conveyers CHAMPION SPARK PLUG CO 7 July 1975 [12 July 1974] 28468/75 Heading B8A A rotary head 14 carrying an article gripper or grippers 13 on each side of a central rotary axis, has also vertical movement which controls the grippers, and serves to transfer articles between conveyers 11 and 12. As shown, there are two grippers 13 on each side of the rotary axis and each gripper 13 is normally closed (Fig. 6) by the action of pressure fluid from a pressure source or reservoir (not shown) acting on a piston 32 connected to the ends of the grippers' arms. The piston 32 operates in a cylinder 33 on the end of which the grippers are each pivotally mounted at 31. The head 14 is vertically moveable relative to a vertically and rotationally movable shaft 16 which carries rigidly therewith a head 17. The latter carries members 27 which overlie respectively, rods 26 of the pistons 32 of the gripper mechanisms. Thus when the head 17 is lowered relatively to the head 14, the members 27 engage the respective rods 26 and force open the grippers (fluid being forced out of the cylinders 33 which thus have a returnspring action). To compensate for the difference in distance between the articles on conveyer 12 (which is curved) and the distance between articles on the conveyer 11 (which is straight), the grippers are carried in pairs, each on a respective arm 46 which is pivotally mounted on the head 14 (Fig. 8). A lost-motion connection between each arm 46 and the head 14 is provided by a pin 51 on each arm 46 and a bore 53 in the head, the pin being urged by a spring to provide the slightly convergent attitude of the two arms 46 shown in Fig. 8. When the head rotates through 180 degrees (Fig. 9, not shown), cam surfaces 62 on each arm 46 engage fixed surfaces 60 to maintain the convergent altitude. In a modification (Fig. 10, not shown), there is a more simple form of head with only one gripper mechanism on each side of the rotary axis.