baber/WOPTO huggingface dataset:
Patent GB-391238-A (GB)
Title: Process and apparatus for cracking and treating hydrocarbons
Filed: 1931-11-13
Abstract: <PICT:0391238/III/1> Oils are cracked by circulating them through a heating zone, withdrawing the vapours formed and partially condensing them, separating the condensate and cracking it in a second cracking zone, and returning the residues from the second zone to the first zone.  Oils supplied through pipes 19, 19a are passed at low pressures through a heating coil 1 and a reaction chamber 2.  The vapours separating in the chamber 2 are led off through a dephlegmator 3 cooled by a coil 26, the uncondensed vapours passing off through a line 15 and condenser 4 to a gasoline storage tank 5. The condensate formed in the dephlegmator is led off through pipes 13 or 16 according to he gravity required, and passed through a pipe 14 and separator 9 to a heating coil 6, where it is cracked at high pressure and temperature.  The cracked products are passed through a pipe 6b to a reaction chamber 7 from which vapours pass through a line 12 into the dephlegmator 3 while liquid residues are returned through a pipe 24 and the pipe 19 to the first coil 1.  Part of the cracked products from the coil 6 may be returned direct to the coil 1 through the pipe 19.  Part of the liquid remaining in the chamber 2 may be withdrawn through a line 30 or withdrawn through a line 20 and mixed in the pipe 14 with the condensate to be cracked in the coil 6.
Patent GB-1027965-A (GB)
Title: High load capacity dry film lubricants
IPC: C08G77/00
Filed: 1964-08-04
Abstract: A lubricating composition consists of 40-85% by weight of a solid lubricant and 15-60% of an alkyd resin which is a condensation product of (a) 40-100% of the polymeric reaction product of one or more aliphatic polyhydric alcohols and one or more compounds selected from cyclic, polycarboxylic acids, the lower C1-C8 alkyl esters of these acids, and the anhydrides of these acids, at least one of the reactants being at least trifunctional and (b) 0-60% of an organosilicon compound of general formula <FORM:1027965/C4-C5/1> <FORM:1027965/C4-C5/2> where each R is a monovalent aromatic hydrocarbon or lower alkyl radical, n has an average value of 0.8-3 and a is a positive integer.  The solid lubricant may be molybdenum disulphide, graphite, antimony trioxide, titanium disulphide, bismuth, lead sulphide and oxide, polytetrafluorethylene, magnesium oxide, boron nitride, calcium fluoride, zirconium disulphide, colloidal silver or a mixture of molybdenum disulphide and graphite or calcium fluoride. Ingredient (a) may be formed from polyhydric alcohols and phthalic, terephthalic, and isophthalic acids or their C1-C3 alkyl esters or anhydrides, e.g. glycerol isophthalate.
Patent GB-674194-A (GB)
Title: Improvements in and relating to the manufacture of models for precision casting by the "lost wax" method
IPC: B22C7/02
Filed: 1949-12-08
Abstract: 674,194. Casting processes ; patterns. BRITISH INDUSTRIAL PLASTICS, Ltd., and ROLASTON, N. Nov. 29, 1950 [Dec. 8, 1949], No. 31582/49. Class 83 (i). [Also in Group V] A wax mould of an article, to be used subsequently to make a refractory mould for the article by the " lost wax " process, is formed by solidifying a layer of wax 6 on the surface of a master die 2 and then backing the layer with a mass 8 of solid wax in the form of compressed granules. The die 2 is placed in a mould 1 and the mould filled with molten wax, the greater part of which is then poured away, leaving a solid layer 6. The backing 8 of granulated wax is compressed by means of a plunger 3. Low-melting-point alloy, such as Wood's metal may be used instead of wax.
Patent GB-338314-A (GB)
Title: Manufacture of new urea derivatives
IPC: C07C275/42
Filed: 1929-10-18
Abstract: 338,314. Groves, W. W., (I. G. Farbenindustrie Akt.-Ges.). Oct. 18, 1929 Urea derivatives of the general formula (where R and R1 are aromatic residues of the benzene or naphthalene series which may contain substituents but no free sulphonic or carboxylic acid group and in which at least one o- or pposition relative to the hydroxyl group is free) are manufactured by condensing a diarylureadicarboxylic acid CO-(NH-R-COOH)2 or the corresponding acid chloride in the presence of a dehydrating agent with an aminophenol H2N-R1-OH. Alternatively the aminophenol is condensed with an aminoarylcarboxylic acid H2N-R1-COOH or the corresponding nitro-compound or the acid chloride of either, the condensation product is reduced if necessary and treated with phosgene. In examples : (1) diphenylurea-p-p<1>-dicarboxylic acid (prepared by treating p-aminobenzoic acid with phosgene) is condensed with p-aminophenol by the action of phosphorus trichloride in dimethylaniline solution : (2) the same compound is similarly condensed with 1-methyl-4-hydroxy-2-aminobenzene, 1-methyl-2-hydroxy-4-aminobenzene, 1-methyl-2- hydroxy-5-aminobenzene or 1-methyl-4-hydroxy-3- aminobenzene : (3) diphenylurea - m - m<1>-dicarboxylic acid (prepared by treating m-aminobenzoic acid with phosgene) or the urea derivative of 2 : 3-aminonaphthoic acid (similarly prepared from 2 : 3-aminonaphthoic acid) is condensed with m-aminophenol, 1 : 5- or 2 : 7-aminonaphthol; (4) diphenylurea-m-m<1>-dicarboxylic acid is condensed with p-aminophenol; (5) m-nitrobenzoic acid is condensed with m-aminophenol by the action of phosphorus trichloride in toluene solution and the condensation product, after reduction with zinc dust and ammonia, is treated with phosgene.
Patent GB-630060-A (GB)
Title: Improvements in or relating to current collectors or shoes for trolley-pole heads ofelectrically driven vehicles
IPC: B60L5/08
Filed: 1947-12-02
Abstract: 630,060. Current collectors for electric vehicles ELLOR, H. Dec. 2, 1947, No. 31760. [Class 104 (iii)] A current collector or shoe for trolley pole heads comprises a body portion a with upstanding longitudinal sides providing a deep groove to guide and permit bedding of a trolley wire on a carbon block c which is slid lengthwise into an undercut longitudinal recess a<SP>2</SP> in the walls of the groove and held against longitudinal movement by a removable abutment e at one or both ends, the shoe and the abutment or abutments being provided with complementary interlocking formations which prevent movement of the abutment or abutments in the longitudinal direction of the shoe.. As shown, the deep longitudinal groove has a fixed abutment d at one end and at the other end terminates short of the side faces of the shoe which are each formed with a rectangular recess such as a<SP>6</SP> to receive corresponding lugs e<SP>1</SP>, e<SP>2</SP> in the removable abutments e, Fig. 4, when the latter is pushed upwardly into position. The side walls of the shoe and the abutment e are drilled to receive a locking bolt f or a split pin. In a modification the abutment, Fig. 5; (not shown), is provided with an extension or breadthwise lug which extends forwardly and overlaps the seating for the carbon block. Specification 559,129 is referred to.
Patent GB-485627-A (GB)
Title: Improvements in or relating to locks
IPC: E05B65/32
Filed: 1936-11-20
Abstract: 485,627. Door fastenings. PRESSED STEEL CO., Ltd., and SUTHERLAND, A. D. Nov. 20, 1936, Nos. 31793/36 and 16228/37. [Class 44] A fastening for doors comprises a collapsable wedge-shaped part B on a door and a friction grip provided by balls 21, 22 on the striking plate. The wedge-shaped part B, comprises two pivoted pieces 33, 34 urged towards one another by an embracing bow spring 63 and separated into the divergent positions shown by an operating spindle 59. Oblique bores 19, 20 in the striking plate house balls 21, 22, pressed inwards by springs 25, 26, which project into the cavity 24 and engage the oblique sides of the door part B which passes between the balls with wider end first as the door is closed. To release the door the spindle 59 is turned to permit the pieces 33, 34, under the pressure of the spring 63 to move into parallel positions. A spring-pressed safety latch may be provided.
Patent GB-817340-A (GB)
Title: Improvements in or relating to mechanism for inserting tufts in pile fabrics, especially carpets
Inventor: BARCLAY ROBERT
IPC: D03D39/02
Filed: 1954-11-04
Abstract: 817,340. Tuft inserting mechanism for making pile fabrics. STODDARD & CO. Ltd., A. F. Oct. 18, 1955 [Nov. 4, 1954], No. 31885/54. Classes 142(2) and 142(4) Tuft inserting mechanism for an Axminster loom or for making carpets by cementing tufts to a backing comprises rows of grippers 17, 18 which take tufts from an Axminster-type spool chain at a station 12 and deposits them at a station 13. The grippers are mounted on a carrier 10 which moves bodily upwards, under the action of cams, to enable the top row of grippers to seize the yarns, and moves downwards to draw the required length off the spool (the yarns then being cut) and also to cause the bottom row of grippers to place its yarns in the fabric. The carrier is rotated intermittently to move the grippers from one station to the other by a crank mechanism, the connecting rod of which is actuated by a cam, a second cam mechanism serving to move the crank past its dead centres by acting transversely on the connecting rod. The grippers are opened at the bottom of their travel by means of a cam-operated striker which imparts endwise movement to a rod 43 carrying ramps which rock the jaws 18: the jaws are kept open by a locking plate 52 snapping behind a shoulder on the rod 43. The jaws are closed at the top of their travel by means of another cam-operated striker which disengages the locking plate 52 to allow the rod 43 to return to its original position under the action of a spring.
Patent GB-1327014-A (GB)
Title: Variable speed transmission
IPC: F16H15/50
Filed: 1971-07-07
Abstract: 1327014 Variable ratio gear ROLLER GEAR Ltd 7 July 1971 [31 July 1970] 31886/71 Heading F2D A friction gear giving stepless speed-ratio variation in both directions from zero, comprises freely-caged planetary balls 80, contacting inner and outer race pairs, of which one, e.g. an outer 50B, is fast to an output (or input) shaft 30, the companion outer 50A is selected to have a constant or zero speed and is axially adjustable for ratio shift, whilst of the inner race pair, one, 40A, is secured to the input (or output) shaft 20, whilst the other, 40B, is connected thereto through a cam-and-ball torque-responsive traction pressure load device 60. Axial adjustment of the stationary race 50A is produced by mannually turning it through a worm gear 72 to cause its cammed rear face 52 to ride up fixed radial rollers 74. The ball tracks 50A, 50B of the outer races are 45 degree cones, whilst those of the inner races are concave to a radius of the order of the ball diameter, that of B being greater than that of A.
Patent GB-481989-A (GB)
Title: Improvements relating to fastenings for doors, drawers and the like
IPC: E05C3/12
Filed: 1936-11-21
Abstract: 481,989. Pivoted latches. TONKS, W. H., and SPARKS, W. Nov. 21, 1936, No. 31922. [Class 44] A pivoted latch g is released by pressing the spring - loaded button e housed within the handle d and having an arm k with a slot n engaging a pin o on the pivoted latch g. Alternatively, the spring may act directly on the latch g.
Patent GB-1281883-A (GB)
Title: Nuclear magnetic resonance devices
Inventor: LEANE JOHN BRYANT
IPC: G01R33/46
Filed: 1968-07-04
Abstract: 1281883 Nuclear magnetic resonance spectrometers PERKIN-ELMER Ltd 2 Sept 1969 [4 July 1968] 31954/68 Heading G1N A nuclear magnetic resonance spectrometer having a permanent magnet 1A, 1B which is unlocked but provided with a field locking winding 3 and an arrangement for field sweeping a measuring sideband to scan the N.M.R. spectrum of a sample under test, is provided with a dual purpose accessory (shown in the chain line box) including a variable frequency oscillator 20 for siting and holding a working sideband at a desired location of the spectrum by sweeping the frequency of oscillator 20 in synchronism with the field sweep which, in one mode of operation using a high energy level for the working sideband, provides spin decoupling, and, in another mode of operation at a lower energy level and in conjunction with a phase detector 18 for the dispersion component of the N. M. R. signal from an internal reference sample, provides field locking. Phase detector 12 passes the absorption components of the N. M. R. signals from the sample under test to a recorder 14. The field sweep winding 2 and the oscillator 20 are slaved to the chart drive of the recorder. The initial frequency of oscillator 20 may be selected by a selector 17. A field shift generator 15 is provided.
Patent GB-1307879-A (GB)
Title: Sewing machines and needle carriers therefor
IPC: D05B55/02
Filed: 1970-07-02
Abstract: 1307879 Attaching needles UNION SPECIAL MACHINE CO 2 July 1970 [3 July 1969] 32109/70 Heading D1G A needle carrier 15 is releasably connectible to the oscillating shaft 14 of a blind stitching or overedge sewing machine, so that the carrier and needle may be swung to one side for ease of threading. The carrier comprises a hub 18 encircling the shaft and an arm 19 bored to receive a spring biassed plunger 23 which may be withdrawn from a hole 25 in the shaft by use of a cross pin 26 to permit the carrier to be swung about the shaft to the position shown. The plunger 23 and hole 25 may be tapered as shown or may be plain, (Fig. 8, not shown). A plate 32 providing a thread guide also acts as a stop for the needle 30 secured by the screw 31.
Patent GB-1103633-A (GB)
Title: Preparation of molded and sintered aluminium nitride
Inventor: MATSUO SHIGETOMO
IPC: C04B35/581
Filed: 1965-07-27
Abstract: Sintered aluminium nitride is made by sintering in a nitrogen atmosphere a compacted powder mixture comprising by weight 80%-20% aluminium nitride and 20%-80% aluminium, the sintering being effected above the melting temperature of aluminium and high enough to nitride the liquid phase aluminium.  Polyvinyl alcohol or polyethylene glycol may be added to the powder and the mixture may be cold compacted and sintered or hot pressed.  The initial sintering is carried out at 1000 DEG C. and the final step at 1500 DEG C. Various examples are given of different temperatures and sintering tunes for different powder mixtures.ALSO:Sintered aluminium nitride is made by sintering in a nitrogen atmosphere a compacted powder mixture comprising by weight 80%-20% aluminium nitride and 20%-80% aluminium, the sintering being effected above the melting temperature of aluminium and high enough to nitride the liquid phase aluminium. Polyvinyl alcohol or polyethylene glycol may be added to the powder and the mixture may be cold compacted and sintered or hot pressed. The initial sintering is carried out at 1000 DEG  C. and the final step at 1500 DEG  C. Various examples are given of different temperatures and sintering times for different powder mixtures.
Patent GB-359719-A (GB)
Title: Improvements in or relating to pipe couplings
IPC: F16L29/02
Filed: 1930-10-27
Abstract: 359,719. Pipe couplings. CORDEN, G. A., Outwood Grange, Outwood, near Wakefield, ELLIS, P. T. and ELLIS, G., Old Crown Brass Works, Northgate, Wakefield, Yorkshire. Oct. 27, 1930, No. 32162. [Class 99 (i).] A pipe coupling comprises two members 1, 9 connected together by a nut 8, the member 1 containing a. ball-valve 7 which is raised from its seat 3 by the slotted end of the member 9 when the coupling is made. Apertures 13 in the nut allow fluid under pressure to escape while the pipes are being coupled or uncoupled. The compressible seat 3 is secured by a screwed ferrule 4 and a ring 5 of white metal. A fluidtight joint is ensured by a washer 13.
Patent GB-838102-A (GB)
Title: Improvements in woven fabric and articles comprising the fabric
IPC: D06M15/244
Filed: 1956-10-23
Abstract: 838,102. Venetian blinds. CELANESE CORPORATION OF AMERICA. Oct. 23, 1956 [Oct. 24, 1955], No. 32251/56. Drawings to Specification. Class 20(3) [Also in Groups VIII, IX, XIV and XXV] Ladder tapes for Venetian blinds are made by welding together strips cut from a wide fabric woven from a warp of stretched and saponified cellulose acetate and weft of ordinary cellulose acetate and coated with vinyl chloride polymer.
Patent GB-1392398-A (GB)
Title: Disc file including a transducer carriage assembly
IPC: H02K33/18
Filed: 1972-07-11
Abstract: 1392398 Magnetic disc stores; transducer mounting and moving arrangements INTERNATIONAL BUSINESS MACHINES CORP 11 July 1972 [2 Aug 1971] 32275/72 Heading G5R [Also in Division F2] In a magnetic disc file, a transducer is mounted on a carriage 16 radially movable along a support track 20 which includes a pair of parallel rails 22a, 22b, each having two bearing surfaces 24a, 28a; 24b, 28b at an angle to each other. The surfaces 24b, 24a are coplanar and are engaged by carriage wheels 26b (26a), Fig. 3b (not shown); the surfaces 28b, 28a face each other and are engaged by angled carriage wheels 30b (30a), Fig. 3b (not shown). A third rail 22c is spaced longitudinally from the rails 22a, 22c and has a bearing surface 24c coplanar with surfaces 24a, 24b and engaged by a wheel 26c, and two bearing surfaces 34a, 34b at an angle to the surface 24c and engaged by angled wheels 32a, 32b. Carriage wheels (30a) and 32a are spring loaded against their respective bearing surfaces by arms (36, 38), Fig. 3b (not shown). One or more transducers are mounted on cantilevered arms (12), Fig. 1 (not shown), carried on an upright T-block 10 on the carriage 16.
Patent GB-187874-A (GB)
Title: Process and plant for sorting, washing or classifying mixed materials of different specific gravities or volumes
IPC: B03B5/62
Filed: 1921-12-01
Abstract: 187,874. Croquet, M. Dec. 1, 1921. Settling, obtaining graded materials by; stationary-vessel wet-separating apparatus; upward-current classifiers.- In the separation of mixed materials such as coal and shale, one or more horizontal streams of water under pressure and of variable velocity, pass successively across the upper end of one or more substantially still or " sleeping " vertical columns of water in which the separation takes place. The mixed materials are fed into the conduit A and sink through the still water according to size or specific gravity, until they reach the point B, where they meet the stream of pressure water x<1>. The lighter material remains in suspension and is caried on by the water until it is discharged upwardly at C into a suitable trough. The heavier material is conveyed along the bottom of the stream x<1> until it reaches the point D where it sinks through the second column of still water D<1> The separation process is then repeated by means of the stream of pressure water x<2> the lighter material being discharged upwardly at F whilst the heavier pass through the column of still water G<1> and are removed by the bucket elevator H or like means. The top of the elevator casing is connected by means of a pipe I to the point in the feeding conduit A, water for the pipe, I being supplied by a pipe t from the pressure water supply pipe K. Two overflow pipes at the same level are provided at r and r'. In a modification only a single horizontal stream is used but two discharge conduits for the heavier materials are provided. A plurality of discharge conduits may be employed together with variations in the velocity of the stream effected by locally modifying its cross section, or more than one stream may be used. Specification 175,334 is referred to.
Patent GB-193536-A (GB)
Title: Improvements in moulds for glasswork
IPC: C03B9/48
Filed: 1921-12-02
Abstract: 193,536. Hailwood, E. A. Dec. 2, 1921. Materials for moulds. - Moulds or forms for shaping or pressing glass are made by forging or rolling up steel or iron, preferably of the kind known as " rustless." Such moulds are stated to produce ware of finer finish than that produced in moulds of cast metal.
Patent GB-1037428-A (GB)
Title: Improvements in or relating to actuating mechanisms
Inventor: PEDDER ALAN EDWARD
IPC: F16D65/28
Filed: 1963-08-19
Abstract: 1,037,428. Gearing inter-converting oscillating and reciprocating motion; controlling clutches; brakes. IMPERIAL CHEMICAL INDUSTRIES Ltd. Aug. 4, 1964 [Aug. 19, 1963], No. 32648/63. Headings F2E, F2L and F2Q. Mechanism for alternately engaging and disengaging a clutch or brake on alternate depressions of a pedal 5 comprises a ratchet wheel 8 engaged by a spring-pressed pawl 10 on the pedal 5, and a cam 9 integral with the ratchet wheel 8 and engaged by a roller follower 14 on a pivoted arm 12 to which an actuated member 15 is connected. The cam 9 has a sinusoidal profile and the arrangement is such that the follower roller 14 engages the roots and crowns alternately. A spring 18 urges the roller 14 on the arm 12 into engagement with the cam 9, and another spring urges the pedal 5 to its initial position.
Patent GB-636509-A (GB)
Title: Improvements relating to drying machines
IPC: F26B15/00
Filed: 1947-12-11
Abstract: 636,509. Drying apparatus. PETRIE & McNAUGHT, Ltd., and PETRIE, R. Dec. 11, 1947, No. 32698. [Class 34(ii)] [Also in Group XXXIV] In drying apparatus of the type in which hot air is blown through a foraminous conveyer, the fan shaft bearings are cooled by air drawn over them by the suction effect of the fans themselves. As shown, grass, &c., to be dried is fed on a conveyer a up a ramp b and delivered at c. A furnace d supplies hot gases by a duct e to the space f whence they are blown into compartments k, m by fans g, h driven by shafts i, j. The shaft bearings 3 adjacent to the fans are surrounded by the ends of pipes u which communicate with the atmosphere by branches v, air being drawn by the fans through the pipes so that the bearings are kept relatively cool. The bearings at w of the fan shafts i, j are cooled by air drawn into the hollow girder x by which the bearings are supported and covers or canopies z over the shaft bearings allow air to circulate around the bearings.
Patent GB-1479692-A (GB)
Title: Control circuit
IPC: F15B11/00
Filed: 1974-07-24
Abstract: 1479692 Fluid-pressure servomotor systems KOMATSU SEISAKUSHO KK 24 July 1974 [24 July 1973] 32771/74 Heading G3P [Also in Division F1] In the circuit shown, Fig. 1, the supply of fluid to a ram 4 from a pump 2 and return to a reservoir 1 is controlled by pilot operated valves 32-35 which are opened in appropriate pairs by a spool valve 7 which connects either valves 32, 35 or 33, 34 to reservoir through lines 7a-7d. Each of the valves 32-35 has an associated flow control valve 52-55 which ensures that the flow of pilot fluid and hence the degree of opening of the valves 32- 35 is proportional to the displacement of the spool of valve 7. A pressure relief valve 31 is provided. Fig. 2 shows the construction of the valves. When the spool 65 of the valve 7 is moved to the left, fluid from a port 7d flows through a port 7g to the reservoir. This allows pilot fluid to flow through an orifice 84 in the valve 32 to a line 42 and through the flow control valve 52 to line 14 and port 7d. The pressure drop at the orifice 84 opens the valve 22a when the flow rate is great enough. Spool 60 of valve 52 reaches a balanced position in response to pressure of a spring 61 and the pressures in chambers 62, 63. Portion A of the valve 32 is an optional pressure relief valve. In Fig. 1 a circuit N 2 , and others similar may be added to circuit N 1 .
Patent GB-1339450-A (GB)
Title: Acid-catalysed decomposition of aliphatic hydroperoxides
IPC: C07C409/16
Filed: 1971-07-13
Abstract: 1339450 Reactions of peroxides with strong acids; alcohols with per-acids SUN OIL CO 13 July 1971 [13 July 1970 14 Dec 1970] 32791/71 Heading C2C Ketones, aldehydes and alcohols, in admixture are obtained either by contacting a sec. or tert. aliphatic-peroxide or hydroperoxide with aqueous HCl, H 2 SO 4 , oleum, H 2 S 2 O 8 , a mixture of H 2 SO 4  and H 2 S 2 O 8 , HClO 4 , HFSO 3  or an acid treated molecular sieve having a concentration of at least 75 weight per cent or by contacting a sec. or tert. aliphatic alcohol with a peracid having a concentration of at least 75 weight per cent. In the latter process, carboxylic acids are formed in the presence of excess per-acids. The alcohols may be formed as their acid esters.