baber/WOPTO huggingface dataset:
Patent GB-1308971-A (GB)
Title: Electron beam deflection apparatus
IPC: H01J37/09
Filed: 1970-03-11
Abstract: 1308971 Electron beam deflecting apparatus NIHON DENSHI KK 11 March 1970 [17 March 1969] 11749/70 Heading H1D Electron beam deflection apparatus, particularly scanning apparatus, such as a scanning electron microscope, comprises at least one deflection coil in the evacuated volume to generate a deflection field with at least one component at right angles to the beam path, and an electrical insulator between the coil and beam path with an electrically conductive membrane of thickness 500  to 10<SP>5</SP>  (e.g. 10<SP>3</SP> ) on the inner surface of the insulator. The insulator may be glass, e.g. quartz glass, or a plastics material and the membrane Au or Cr, Cu, Ti or Al for instance, pasted or evaporated on the insulator. The construction ensures electrons do not strike the coil, the membrane eliminating charging of insulator 13 while the membrane thickness reduces eddy currents at high scanning frequencies such as 15À75 kHz and as in TV scanning. Coil supporter 12 may be plastic, member 13 supported by brass or other non- magnetic members 15, 16 with intervening Ag foil 17 and end plates 18, 19. In Fig. 1 (not shown), membrane (5) is connected to metal plates (6), (7), the latter being earthed.
Patent GB-370668-A (GB)
Title: Improved beverage based on yerba mate
IPC: A23F3/34
Filed: 1931-04-21
Abstract: A tea substitute consists of yerba mat<\>ae which has been fermented and desiccated and in which are incorporated essence of chicory (cichorium intybus) and vapours of sugar cane.  The non-woody leaves and stalks of pure yerba mat<\>ae are slowly moistened, fermented, and desiccated in an oven at 75 DEG  C. for 5 to 10 minutes.  The product, before winnowing, is subjected to the action of vapours of cane sugar and essences of chicory.  The final product is roasted, winnowed and packed.
Patent GB-833782-A (GB)
Title: Improvements in or relating to, continuous heat treatment furnaces
Inventor: MCNULTY FREDERICK ANDREW
IPC: F27B9/24
Filed: 1957-04-11
Abstract: 833,782. Continuous heat treatment furnaces. SALEM ENGINEERING CO. Ltd. April 11, 1958 [April 11, 1957], No. 11820/57. Class 51 (2). Cylindrical billets 9 are propelled through a continuous heat treatment furnace by pairs of parallel rotary discs 6, 7 projecting through spaced openings 6 in the furnace shell 2 and located on opposite sides of and equidistantly from a vertical plane on the longitudinal centre line 8 of the furnace. The discs are driven from shafts 16 and 17 through bevel gearing 11-15, and stub axles 10 carrying the discs, the shafts 13, and driving shafts 16 and 17 are all disposed in bearings which are adjustable laterally of said vertical central plane. The stub axle bearings are also angularly adjustable to vary the angular position of the discs 6, 7 and hence the billet speed without varying the speed of the drive. The furnace is heated by induction coils 1 disposed around sleeves 3 spaced by uniform clearances 4 below which are the openings 5 in the concentric shell 2.
Patent GB-600452-A (GB)
Title: Improvements in and relating to electronic apparatus for the transmission of a signal during the interval between succeeding electrical impulses
IPC: H03M1/00
Filed: 1943-07-21
Abstract: 600,452. Measurement of short time intervals. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). July 21, 1943, No. 11873. [Class 37] [Also in Groups XXXVIII and XL(c)] Means to transmit an applied signal during the time interval between the impulses, comprises an amplifier to which the signal is applied, and a control circuit whereby the amplifier may be rendered operative in response to an initiating impulse, and non-operative in response to a terminating impulse. The amplifier is normally inoperative and the control is exercised by means of the voltage produced across two resistances each of which is shunted by an impulse sensitive auxiliary control circuit. In Fig. 1, an amplifier 16 is arranged to transmit timed impulses from generator 11 during the time interval which may then be measured by means of an impulse counter 12. Amplifier 16 is normally biassed to cut off, but may be rendered operative by the voltage developed across resistance 32 when an oscillation generator 33 forming part of auxiliary control circuit 17 is started by an impulse from a circuit 20. Control circuit 17 is similar to that described in Specification 317,018, [Class 40 (v)], valves 33 and 34 being normally cut-off, but when valve 34 is rendered conducting by the impulse from circuit 20, generator 33 starts oscillating, and the coupling via coil 48 maintains valve 34 and therefore oscillator 33 conducting. The negative bias on oscillator 56 of a similar type of auxiliary control circuit is partially overcome by the voltage drop in resistance 32, so that this circuit becomes operative when a second impulse is applied from circuit 20, thereby producing a voltage across resistance 29 which is sufficient to render amplifier 16 non-operative. The impulses in, circuit 20 may be produced by the passage of a moving object through inductive coils 13 and 14. A modification is described in which the impulses are applied directly to resistors 51, 50 instead of as shown.
Patent GB-1059391-A (GB)
Title: Improvements in and relating to methods of manufacturing mn-bi magnet bodies
IPC: H01F41/02
Filed: 1964-03-20
Abstract: 1,059,391. Coating with metals; magnetic compositions. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. March 20, 1964 [March 25, 1963], No. 11883/64. Heading C7FMn-Bi magnetic bodies, made by compressing powder formed by pulverising an alloy mixture of Mn and Bi heated to 1000‹C., are coated with at least one metal layer e. g. Ni, Zn, Cu applied from an acid free medium below 445‹C. A 10 micron thick Ni layer may be deposited either by immersion in an alkaline aqueous solution containing Ni Cl 2  NH 4  Cl, Na hypophosphate and Na citrate or by thermal decomposition of Ni carbonyl, a further 40 micron thick Ni layer being added electrolytically. A Cu layer e. g. 15 microns thick may be electro-deposited followed by either tin plating by immersion in a tin-lead alloy melt or by electrodeposition of a 50 micron thick Ni layer or a 40 micron thick Cu layer. A 10 micron thick Zn layer may be applied by rotating the magnet body with Zn powder, glass balls and petrol followed by the electrodeposition of a first thin Cu layer and then layers of Ni or Cu.
Patent GB-1419833-A (GB)
Title: Water-dispersible film-forming polymer compositions and latexes  obtained therefrom
IPC: C08L33/00
Filed: 1973-03-13
Abstract: 1419833 Water redispersible polymer compositions DOW CHEMICAL CO 13 March 1973 [13 March 1972] 11883/73 Heading C3P A film-forming latex composition having an average particle size of 500 to 10,000 Angstroms and which when dried at a pH greater than 7 is redispersible in water to form a latex having substantially the same particle size as the original latex, comprises an aqueous dispersion of particles of a copolymer of 1-10 wt. per cent of an alpha, beta-ethylenically unsaturated carboxylic acid and a balance of a polymerizable water-insoluble ethylenic monomer composition, and an effective amount to provide water redispersibility, of a six-membered ring carbocyclic compound having two vicinal carboxyl or carboxylic salt groups which is soluble in aqueous alkaline media; said copolymer being film-forming below 95‹ C. The dried composition is also claimed. The polymer may contain, as the comonomer(s), units derived from a conjugated aliphatic diene, an alkenyl aromatic compound such as styrene, an acrylic ester, vinylidene chloride or vinyl acetate. The carbocyclic compound may be a phthalic acid, a 1,2,3,6-tetrahydrophthalic acid, or a hexahydrophthalic acid, and is preferably used in an amount of 2-8 parts by weight per 100 parts by weight of polymer. The latex may be prepared by either mixing the carbocyclic compound physically with a preformed latex of the polymer, polymerization in the presence of said carbocyclic compound or by forming the carbocyclic compound in situ during the polymerization at acid pH to form the polymer latex. In the latter method, the carbocyclic compound may be formed by reaction between fumaric acid or a monomethyl, monoethyl or monopropyl ester of an alpha, beta-ethylenically unsaturated dicarboxylic acid in which the carboxyl groups are both attached to the doubly bonded carbon atoms, and part of an aliphatic conjugated diene monomer which is present in the reaction mixture. Acid monomers used in the examples are itaconic acid, fumaric acid, acrylic acid, monomethylmaleate, monoethylmaleate, monopropylmaleate and monobutylmaleate.
Patent GB-698464-A (GB)
Title: Improvements in and relating to devices for centralizing casing in boreholes
Inventor: THOMAS HALLOWELL CHARLES HERMA
IPC: E21B17/10
Filed: 1951-05-22
Abstract: 698,464. Casing centralizers. ATKINSON, A. E. Feb. 18, 1952 [May 22, 1951], No. 11904/51. Addition to 664.905. Class 85 In a casing centralizer, the initial stress-. ing of the bowed springs to increase their resistance to lateral load is effected by the engagement or fulcruming of a part or parts of the bowed spring upon one or both of the end rings instead of on the casing as in the casing centralizer described in the parent Specification. The end rings 2 now comprise annular two-part hinged collars having formed therein a number of rectangular openings 9 partially hooded by bridge portions 10, whilst the bowed springs at each end have a portion 4 engaging on the collar and connected to a portion 5 having an upturned lug 6. The portion 4, when the bowed spring is placed on a horizontal plane, is in an unstressed' condition lying at an angle to the plane. The spring is stressed by forcing the portion 5 into the opening 9 beneath a bridge 10, the part 4 forming a fulcrum where it engages the collar. Stops 11 are provided on each ring at the outer ends of each slot to form an abutment for the spring end. A single stop ring 13 or equivalent stop lugs are provided on the casing between the end rings to locate the centralizer thereon.
Patent GB-130963-A (GB)
Title: Improved Process for Extracting Potassium Compounds from Rocks Containing Potassium and Simultaneously Producing Nitrogen Containing Fertilizers.
Inventor: ROSSI CARLO
IPC: C01C3/00
Filed: 1919-05-12
Abstract: 130,963. Rossi, C. Aug. 9, 1918, [Convention date]. Manures.-The potassium content of a rock such as leucite, volcanic ash, feldspar, orthoclase, granite, and the like is obtained by strongly heating the rock in a finely-ground condition with calcium carbide in a stream of nitrogen. The potassium compound is volatilized, whilst the nitrogen is fixed by the calcium carbide as calcium cyanamide and by the rock forming a complex nitrogen-bearing compound. The nitrogenous residue, with or without the addition of the potassium compound, can be used as a fertilizer. Lime may be added to the reacting bodies in addition to that present in the calcium carbide; and carbon may be added in addition to that produced in the formation of calcium cyanamide. By using a lower temperature, the volatilization of the potassium compound may be prevented.
Patent GB-1413934-A (GB)
Title: Stainless steels
IPC: C22C38/44
Filed: 1974-03-18
Abstract: 1413934 Stainless steel CREUSOT-LOIRE 18 March 1974 [12 April 1973] 11927/74 Heading C7A A stainless steel of composition:- The steel may be heat treated by quenching from 1050‹C-1175‹C and reheating to 700-800‹C (e.g. 24 hours at 750‹C) to precipitate Ni 3 (Al, Ti) and may be utilized in the manufacture of exhaust valves and valve seatings for internal combustion engines.
Patent GB-1305143-A (GB)
IPC: F16F9/36
Filed: 1971-04-28
Abstract: 1305143 Filling piston-and-cylinder devices FICHTEL & SACHS AG 28 April 1971 [29 April 1970] 11968/71 Heading F2S Gas under pressure is supplied to a pistoncylinder pneumatic or hydropneumatic damper or spring via a three-part piston-rod seal which comprises (in axial sequence from the outside in) (a) an annular guide component 3 secured against axial movement out of the cylinder, defining with the cylinder a gas filling inlet 19, and having a contact surface 17 for (b) a packing washer arrangement 4, 7 which sealingly engages both the cylinder and the piston-rod and (c) a supporting ring 8, secured against axial movement into the cylinder, which has at least one peripheral recess 9 enabling part of the packing washer arrangement to flex away from the contact surface 17 and out of sealing engagement with the cylinder inner surface during the gas filling operation to allow gas to enter the cylinder. The ring 8 has two diametrically opposed crescent-shaped recesses 9. The ring 8 and the guide component 3 are axially secured by circlips 6, 14. The gas filling inlet 19 may extend over only part of the periphery of the guide component 3. To fill the cylinder with gas a charging head 10 with a resilient seal 27 is pushed against the end of the cylinder 1. Pressurized gas is admitted to the chamber 28 so formed, through a duct 29, and enters the cylinder, the packing washer 7 flexing away from the cylinder inner surface in the region of the recesses 9. When filling is completed, the reduced pressure in duct 29 and the high pressure inside the cylinder force the washer 7 back into its sealing position on the surface 17.
Patent GB-958520-A (GB)
Title: Lubricating oil compositions
IPC: C10M159/24
Filed: 1961-04-04
Abstract: Phosphosulphurized polyolefins, e.g. polyisobutene, are neutralized by treating them with an alkyl phenol or alkyl phenol sulphide in a mineral or synthetic oil diluent, adding an excess of metal base over that required for neutralization, and then treating the mixture with carbon dioxide to neutralize the excess metal base.ALSO:A lubricating oil composition contains as additives (a) an oil-soluble composition obtained by incorporating into an oil a neutralized phosphosulphurized polyolefin, said neutralization being carried out by either (1) reacting the phosphosulphurized polyolefin with an alkyl phenol or alkyl phenol sulphide, reacting the mixture with an excess of a base over that required for neutralization and contacting the resulting solution with CO2 to neutralize the excess base; or (2) by the addition of a high-alkalinity, oil-soluble metal phenate; and (b) an oil-soluble sulphonate of a polyvalent metal. The metal of both additives (a) and (b) is preferably an alkaline earth metal. The sulphonate may be of one of several types including petroleum sulphonates.  The base-oil of the composition may be mineral or synthetic but only the former is exemplified, and may contain as V.I. improvers copolymers prepared from vinyl acetate and maleic and fumaric acid esters.  In an example a vinylacetate/alkyl fumarate/maleic anhydride copolymer is used. The composition may be a concentrate containing 25-40% of component (a) and 10-25% of component (b), or a diluted composition for direct use as a lubricant containing 0.2-4.1% of (a) and 0.1-1.8% of (b). Components (a) and (b) may both be marketed separately as oil concentrates.
Patent GB-1381926-A (GB)
Title: Apparatus for unscrewing and screwing on gas bottle caps
IPC: F17C13/06
Filed: 1972-03-15
Abstract: 1381926 Screwing machines SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 15 March 1972 [17 March 1971] 11987/72 Heading B3N [Also in Division B8] In an apparatus for unscrewing and screwing - on the caps 32 on compressed gas bottles 31, the screwing-on operation is terminated by a device which senses that the cap has been fully screwed on to a "blocked" condition (i.e. sufficient to resist the normal unscrewing forces that can be applied by a user) with a maximum tightening torque of, e.g., 10 mkg. The rotation of the unscrewing and screwing-on spindle 38 is then reversed with a maximum torque, e.g., 20 mkg. sufficient to cause "deblocking" of the cap, this unscrewing rotation being automatically stopped and limited to a small fraction of a revolution. An empty bottle 3 with a cap 4 is pushed off a conveyer 13 into the reception cradle 33 of one of the working posts 2 spaced around the turntable 1 by a pusher 15, and there contacts a feeler 30 which causes the bottle to be centred coaxially with the spindle 38 and gripped by the member 36. It is then raised towards the spindle 38 by the jack 35, and when the cap 32 enters the unscrewing and screwing-on member 41 at the lower end of the spindle, it contacts a feeler which starts the unscrewing operation which involves gripping of the cap by the member 41, rotation of the spindle 38 by its own drive motor via force limiting coupling 39, which transmits a higher unscrewing then screwing torque, and simultaneous lowering of the bottle by the jack 35. The operation takes less time than it takes the turntable 1 to rotate, to position 8 where the centering device 36 opens and the bottle without its cap is ejected by the jack 21 on to the conveyer 17. A full bottle without a cap is pushed into the working post 19 with a cap by the jack 20 from the conveyer 18, and contacts the feeler 30, initiating the screwing-on operation which is similar to the unscrewing but in reverse, followed by the deblocking described above. The capped bottle 5 is ejected by the jack 21 on to the conveyer 22.
Patent GB-1366767-A (GB)
Title: Packing and display containers for a plurality of packages
IPC: B65D5/52
Filed: 1972-03-15
Abstract: 1366767 Bottle and can carriers/cartons AUGUST STORCK GmbH 15 March 1972 [16 March 1971 2 March 1972] 12017/72 Headings B8C and B8P A packing and display carton has two face panels 4 connected to double walled flanges, the inner walls 6 of which are narrower than the outer walls 5 thereof so as to produce an inward bias on the flanges to grip a stack of articles in the carton, the inner walls 6 also being connected to flaps 7 bonded to the inside of the face panels 4. The flanges are contiguous with wall portions 14, 15 which, together with the face panels 4, carry flaps (16-17, Figs. 4 and 5) for forming a bottom closure for the carton. Tabs 23, 24 are pushed inwardly from the face panels 4 to provide a corner support for the stack of articles, a removable support 29 also being inserted through a slit 22 in the wall portion 14. In a second embodiment, Fig. 9, the inner walls 6, of double wall flanges connected to a single face panel 4, are cut out at 31 to support the rims 32 of jars 28.
Patent GB-954075-A (GB)
Title: Improvements in textile drafting apparatus
Inventor: NUTTER WALTER
IPC: D01H13/04
Filed: 1961-04-04
Abstract: 954,075. Drafting-apparatus. T. M. M. (RESEARCH) Ltd. June 29, 1962 [April 4, 1961], No. 12063/61. Heading D1D. Drafting apparatus comprises pairs of holding and drafting rollers 12, 13 and 14, 15, and in the zone between them, a number-presenting a non- rotary surface 24 to the fibres so that they are deflected about the surface of one of the holding- rollers, said member adjusting itself to regulate the extent of this deflection as the length of the drafting-zone is changed to suit changes in the staple length of the fibres being pressed. The bar 24 is carried by a member pivoted about the axis of the roller 12 and adjusts itself automatically as the pivoting roller 12 is changed in accordance with the staple length of the fibres. Preferably the arrangement ensures that the sliver enters the nip 14, 15 along the tangential plane thereof, the position of roller 14 being suddenly adjusted when roller 12 is changed. In Fig. 2, the lower rolls are supported by blocks 111, 131, 151 carried in the frame 16 on plane upper surfaces of which are adjustably mounted members 101, 121, 141 carrying the upper rolls. Applied to the ends of each upper roller is a pair of spring-pressed plungers 22 arranged in two parallel arms 17 pivoted to the frame at 19 and interconnected by a bar 20 and retained in operative position by a catch 23. The bar 24 is carried by a pair of bell-cranks 27 pivotally mounted in the roller 12 and which also carry a cleanerstrip 29 which is fixed to a cross-member 30, pressure being applied to the levers 27 by springs 31 secured to arms 17. The ends of bar 24 rest on interchangeable bushings on the lower roller 13 to determine its distance from the latter. In another form, Fig. 2 not shown, the bar 24 is carried at each end by a spring-urged asymmetric flange forming part of a socket in which an end of roller 12 is received, an end of the bar resting against a stop fixed to the roller support 121.
Patent GB-569973-A (GB)
Title: Improvements in or relating to the preparation of condensation products from sulphite lye
IPC: C08H5/02
Filed: 1942-08-27
Abstract: A solution of a condensation product is prepared by heating a product obtained by the condensation of formaldehyde with an aliphatic aldehyde and/or ketone by the process described in Specification 349,556, with sulphite lye in the presence of ammonia until the products are soluble in aqueous alkaline media and insoluble in aqueous acid media.  The condensation products precipitated from the solution are thermoplastic and may be compounded with fillers, e.g. coarsely-ground cork, cork powder, wood pulp, sawdust, lignin, papier mach<\>ae, sand or asbestos to form moulding compositions. Advantageously a solution of the condensation product having a pH of about 8 is mixed with an aqueous suspension of filler and precipitated by acidification. The precipitate is separated, washed, dried and, if desired, ground and sieved.  When using cork fillers which yield acid on heating, precipitation of the condensation product may be brought about by heating.  In an example, a condensation product of formaldehyde with acetaldehyde obtained by the method described in Specification 349,556, is refluxed for 1 hour with concentrated sulphite lye from which calcium and iron have been removed, water and ammonia.  20 per cent of water is evaporated from the resulting solution which is stable while alkaline, but precipitated by acidification.  Specification 21482/39 as open to inspection under Sect. 91 also is referred to.
Patent GB-592546-A (GB)
Title: Improvements in or relating to conveyor chains
IPC: B65G17/38
Filed: 1945-05-14
Abstract: 592,546. Conveyer chains. KEEN, C. P. May 14, 1945, No. 12105. [Class 24] [Also in Group XXX] A conveyer chain comprises pairs of links 2 and 3 interconnected by articulating means 1, each providing a universal joint and consisting of a yoke member 4 with a square bore 7 and with trunnion-like extensions 5 and a rocker member 8 having a central enlarged part of rectangular cross-section and trunnionlike extensions 9, held in position in the yoke member 4 by a rivet 11 through aligned apertures. Self-oiling wheels are mounted on each of the extensions 5, 5, 9, 9 and the path of the chain determined by a guideway 20. The chain is thus rotatable about two intersecting axes at right angles to each other and the inclined opposed faces of the member 8 allow in addition rotation about the pivot 11. Conveyer platforms may be attached to screw-threaded extensions at one or both ends of either the rocker 8 or the yoke 4 as indicated. In a modification the articulating member is solid and cruciform as in Fig. 4 providing rotation about two axes. The two types may be used in conjunction as in Figs. 5 and 6 (not shown).