baber/WOPTO huggingface dataset:
Patent GB-858582-A (GB)
Title: Flame-proofing cellulose acetate textiles
Inventor: WARD FRANK
IPC: D06M13/292
Filed: 1956-11-20
Abstract: Cellulose acetate fibrous materials are flameproofed and may be slightly stiffened by incorporating bis-2-chloroethyl aminophosphonate.  The term "cellulose acetate" includes cellulose triacetate and secondary (i.e. acetonesoluble) cellulose acetate formed by the partial hydrolysis thereof.  The bis-2-chloroethyl aminophosphonate may be added to the spinning solution at any stage before the spinning process.  Specifications 531,651, 694,217 and 765,222 are referred to.
Patent GB-1516145-A (GB)
Title: Liquefaction of coal
IPC: C10G1/08
Filed: 1975-08-27
Abstract: 1516145 Solvent extraction of coal LUMMUS CO 27 Aug 1975 [6 Sept 1974] 35427/75 Addition to 1452297 Heading C5E Coal liquefaction product produced by digesting coal with a coal liquefaction solvent is treated in a series of at least two gravity settlers to produce a net overflow from the final settler which is substantially free of insoluble material; the settling is promoted by introducing into each of the gravity settlers a fresh liquid promoter having a characterization factor of at least 9À75, a 5 volume per cent distillation temperature of at least 250‹F and a 95 volume per cent distillation temperature of at least 350‹F and no greater than 750‹F. Suitable promoter liquids are kerosene, middle distillate, gas oil, white oils, heavy naphtha and naphthalenes. The gravity settling can be carried out at 300-600‹F and 0-500 psig using a total of 0À2 to 3 parts by weight of the promoter per part of the coal liquefaction product. Coal 10 is digested with a 600-900‹F coal liquefaction solvent 12 in zone 14 under catalytic or non-catalytic conditions in the presence or absence of added hydrogen. Components boiling below 600‹F are removed at 16 and, after the addition of a 425-500‹F kerosene promoter liquid 18, the coal liquefaction product is separated at 24 into a solidsenriched underflow 27 and a solids-lean overflow 26. The overflow 26 is further separated at 25 after the addition of more promoter liquid 28 to produce a solids-rich underflow 32 and a substantially solids-free overflow 31. Components 53 boiling below 900‹F are stripped from the combined underflows 51 and passed together with the overflow 31 to the recovery zone 41.
Patent GB-1472445-A (GB)
Title: Leak detection in heat-exchangers
IPC: G01M3/22
Filed: 1974-08-12
Abstract: 1472445 Detecting leaks in heat exchangers ELECTRICITE DE FRANCE (SERVICE NATIONAL) 12 Aug 1974 [23 Aug 1973] 35457/74 Heading G1S A method for detecting a steam and or water micro-leak in a heat exchanger having steam and water circulation tubes surrounded by heattransfer fluid, comprises detecting the presence of hydrogen released by the steam and or water into the heat transfer fluid and isolating the leak to a single group of tubes, and then injecting an inert gas successively into each tube of that group until a zero reading for the hydrogen present outside the tubes is obtained in a hydrogen detecting device, which reading is indicative of the leaking tube. In the exchanger of Figs. 2, 3 a liquid alkali metal such as liquid sodium is contained on the upper side of holed plate 24 surrounding steam tubes 20, and water is contained in the lower side of grooved and notched plate 30. The steam tubes 20 connect through bores 34 with the water side of 30 and also connect via notches 28 with grooves 26 connecting with tubes 22 adapted to be supplied with inert gas such as nitrogen. Partitions 36 at right angles to the grooves 26 define compartments which are filled with sodium through ports 38, and these compartments are connected by pipes 40 and valves 42, 44 to a sodium cooler 46, a hydrogen detector 48 and a sodium return pump 52. In operation it may be readily ascertained which compartment, defined by partitions 36, houses the leaking tube 20 by selectively connecting each tube 40 in turn with the hydrogen detector 48 until a reading is given. Then by injecting an inert gas under pressure into the cross tubes 22, grooves 26 and notches 28 leading to the insides of pipes 20 to fill them with inert gas instead of steam, it is possible to determine by noting when the hydrogen reading reaches zero which groove communicates with which faulty tube 20. The compartment and groove tests together give the co-ordinates of the leaking tube which is then plugged and isolated. In Fig. 4 (not shown) the gas inlet tubes are not taken through the wall of the tube plate 24 but enter the tank lower down and connect to the bottom of the counter plate 30. In Figs. 5-7 (not shown) the gas is led into the tubes at a pressure by various means which exclude water from the tubes. In an alternative arrangement the measurement of the hydrogen may be carried out from the gas above the liquid alkali metal.
Patent GB-282759-A (GB)
Title: Improvements in or relating to pyro-recording paper and the like, suitable for use in picture and the like telegraph receiving apparatus
IPC: B41M5/24
Filed: 1927-12-31
Abstract: 282,759. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Bicknell, R. S.). Dec. 31, 1926, [Convention date]. Copying-telegraphs.-Comprises a heat-sensitive recording material such as paper which is so sensitized that it can be marked by an intermittently applied hot gas jet, the heat from an electric spark, or other source of temperature. The material is suitable for use in the copying telegraph described in Specification 276,009, and preferably comprises a short-fibre paper coated with a composition which changes colour when heated. Examples of suitable compositions are (a) water, 100 parts; gelatine, 10 parts; salt, 5 parts; phenol-phthalein, ¢ part. (b) Aniline hydrochloride 9.8 gm., water 99 cc., gelatine 0.026 gm., potassium nitrate 8 gm. or other oxidizer. (c) Nitrates or like salts of metals such as nickel, copper, manganese and iridium, which form coloured compounds, may be used alone or in conjunction with other salts such as nitrates or thiosulphates, double salts of the metals mentioned being in some cases preferable. An example is :-Water, 100 cc.; nickel nitrate or nitrite, 5 gm.; sodium thiosulphate, 3 gm.; sodium nitrite or nitrate, 3.6 gm.; 1 per cent gelatine solution, 5cc, This substance is suitable for use with a hot jet at 480 to 520‹ F. travelling at 1.5 inches per second. The source of heat may alternatively be a spark of 20 to 25 watts between electrodes 0.02 inches apart travelling at 1.5 inches per second, as described in Specification 276,009. The subject-matter of Specification 276,020 is disclaimed.
Patent GB-1016549-A (GB)
Title: Flexible coupling for tubular members
Inventor: MAHOFF GEORGE ALEXANDER
IPC: F16L27/113
Filed: 1964-08-31
Abstract: 1,016,549. Pipe couplings. GAMAH CORPORATION. Aug. 31, 1964, No. 35547/64. Heading F2G. A flexible coupling which permits relative rotary, axial and angular movement between two tubular members, comprises a pair of opposing flanges 10, 12 rigidly secured, respectively, to the tubular members, the flanges including spaced, inner and outer wall portions defining a groove for O-rings 18, 19 and means, such as a sleeve 14 and a nut 15, for coupling the flanges and seal with the O-rings. Each inner wall has an outer peripheral edge sloping axially inwardly towards a decreased diameter, and each outer wall has an outer peripheral edge sloping axially outwardly towards a decreased diameter. The bottoms of the grooves may be sloped, and the tubes may be expanded into contact with the grooved inner walls of the flanges.
Patent GB-1061296-A (GB)
Title: Improvements relating to brakes
IPC: B61H13/00
Filed: 1963-09-09
Abstract: 1,061,296. Railway vehicle undercarriage; disposition of brakes. AMERICAN BRAKE SHOE CO. Sept. 9, 1963 [Sept. 28, 1962], No. 35561/63. Heading B7L. [Also in Division F2] A railway vehicle bogie is provided with a braking system comprising live and dead levers 28, 40 interconnected below the bolster 25 by a rod 35 and connected at their other ends by universal joints to a cylinder and piston actuator 21 and an extensible wear adjuster 22, respectively. The mid-points of the levers are connected to the brake beams 29, 36. The live lever is connectible to hand brake linkage (221, 215, 216, 211, 210; Fig. 6, not shown).
Patent GB-339096-A (GB)
Title: Improvements in or connected with self propelled sewage or other liquid distributing apparatus
IPC: C02F3/04
Filed: 1929-11-21
Abstract: 339,096. Jones, E. R., Mills, S. J. S., and Jones & Attwood, Ltd. Nov. 21, 1929. Rotary apparatus.-A sewage &c. distributor comprises a single pipe arm 1, Fig. 1, rotated about a supply standard 2 by the reaction of liquid flowing through rectangular openings 7, Figs. 2 and 3, in the upper part of the pipe arm, and then down spouts 3 and impinging against reaction plates attached to the spouts 3. The spouts 3 are made separate from the pipes 1 and secured by clamps 5, the upper parts being closed at the back by plates 8. In the upper part of the spouts are mounted. adjustable weirs 9 over which the liquid passes to inclined V-shaped gutters and thence to preferably spoon-shaped reaction plates adjustably supported by links 11. In order to govern the rate of rotation the outer ends of the pipe arms may have reaction devices 3<x>, 4<x> mounted to act in opposition to the others, and in this case they are fed from adjustable weirs at a higher level from those feeding the main reaction devices. The spouts on opposite sides of the pipe arm may be made in one, the back plate 8 being cut away to permit the passage of the liquid.
Patent GB-1116987-A (GB)
Title: Improvements in or relating to soluble fat powder products
IPC: A23K20/158
Filed: 1965-08-19
Abstract: A fatty, storable, mixable, redissolvable and readily resorbable powder product for nutritional and fodder purposes is obtained by finely dispersing an animal or vegetable fat in a hydrous solution of a gelatisable macromolecular substance, for example gelatine, polysaccherides, starch, or a water-soluble synthetic non-toxic high polymer, adding to the so formed emulsion a carbohydrate, which is preferably crystallisable, which keeps the coating substances elastic, and drying the emulsion and converting it into a powdery form.  Essential amino acids or fatty acids may be added prior to drying.  Other optional additives include substances which promote adsorption of fats in the digestive tract. such as lecithin.
Patent GB-494378-A (GB)
Title: Improvements in or relating to liquid seal elements for rectifying columns and the like
IPC: B01D3/20
Filed: 1937-12-24
Abstract: 494,378. Treating liquids with gases. CANZLER, H., and CANZLER, M., (trading as CANZLER, C., [Firm of]). Dec. 24, 1937, No. 35722. Convention date, Jan. 11. [Class 55 (ii)] In rectification or absorption columns or other apparatus for treating gases with liquids comprising trays 2 along which liquid flows and chimneys 3 with bubble caps 4, baffles 8 arranged at rightangles to the direction of liquid flow extend up from the bottom of the trays and terminate below the liquid surface substantially at the level where the gases pass out from the bubble caps, the baffles not extending appreciably above this level, so that liquid which would normally flow along the bottoms of the trays below the gas issuing from the bubble cap is lifted into the path of the gas. The baffles extend to the lower edges of the bubble caps, or, if the caps are indented, to the upper ends of the indentations. The baffles extend from the chimney 3 to the wall of the casing, or between rows of bubble caps and may be circular.
Patent GB-1278422-A (GB)
Title: Attachment of non-metallic segments to metallic substrates
IPC: F16B5/08
Filed: 1969-07-16
Abstract: 1278422 Making conveyer buckets and shoots; jointing CARBORUNDUM CO 16 July 1969 [2 Aug 1968] 35725/69 Headings B3A and B3V [Also in Division B8] A non-metallic segment 6 is secured to a metal surface 4 by a metal retainer 8 having a passage 10 through which it is welded at 28 to the surface and having a shoulder engaging a socket 20 in the segment. Ceramic lining segments may be attached to buckets or shoots for conveying corrosive material, such as coke. As shown, the segments are set in adhesive or mastic 26 and have tapered sockets 20 for receiving the retainers 8, which are subsequently covered by plugs 30 secured by adhesive 32. The retainers may extend to the inside surface of segments (34) which are formed with corner sockets (40), Figs. 6 and 7 (not shown), and separated by adhesive (44). A modified retainer, Fig. 8 (not shown), has a tapered core. A segment may be released by drilling through its bore into the weld.
Patent GB-1189068-A (GB)
Title: Mounting Element for Securing an Object to a Support
Inventor: FISCHER ARTUR
IPC: F16B13/02
Filed: 1968-07-26
Abstract: 1,189,068. Wall plugs; resilient mountings. A. FISCHER. 26 July, 1968 [29 July, 1967], No. 35744/68. Headings F2H and F2S. A mounting element for securing an object to a support and for preventing transfer of vibrations between such object and support comprises an inner sleeve 3 located in an outer sleeve 2 and connected thereto by a plurality of resilient webs 4. The sleeves 2, 3 which may be coaxial and generally circular in cross-section may respectively be provided with recesses 7 to promote anchorage of the element in the support and with a longitudinally ridged bore 5 for receiving a wood-screw. The webs 4 may extend tangentially of the inner sleeve 3 and a vibrationdamping material may be provided in the cavities 9 between adjacent webs 4. The inner and outer sleeves may be interconnected at one end of the element by a common wall (8) (Fig. 1, not shown) and at the other end the inner sleeve 3 may project beyond the outer sleeve 2.
Patent GB-1341403-A (GB)
Title: N-alkyl-n-3,4-methylenedioxyphenyl ureas
IPC: C07D317/66
Filed: 1970-11-27
Abstract: 1341403 N-Alkyl-N-(3,4-methylenedioxyphenyl)ureas SANDOZ Ltd 27 Nov 1970 [1 Dec 1969 5 May 1970] 35767/73 Divided out of 1341401 Heading C2C Novel N-alkyl-N-(3,4-methylenedioxyphenyl) ureas of the general formula wherein R is a C 1-5  alkyl group, are prepared by reaction of an N-alkyl-3,4-methylenedioxyaniline of the general formula with isocyanic acid.  N-Isopropyl-3,4-methylenedioxyaniline is prepared by nitration of methylenedioxybenzene, catalytic hydrogenation of the resulting 1- nitro-3,4-methylene-dioxybenzene and treatment of the resulting 1-amino-3,4-methylenedioxybenzene with isopropyl iodide.
Patent GB-1193767-A (GB)
Title: Thread Identifying Device
Inventor: GUNDERSON B HARRY
IPC: G01B3/40
Filed: 1968-07-29
Abstract: 1,193,767. Thread gauge plates. B.H. GUNDERSON, July 29, 1968, No.35993/68. Heading G1M. A series of differently threaded holes 16, 28, Fig.2 are provided in bars 12, 14, which bars are held together magnetically or by screws 42. In order to test threads in nuts instead of threads on screws the holes 16, 28 may mount externally threaded members 26, 36 as shown in Fig.4. Indicia showing screw thread information may be mounted on surfaces 20, 30 and these surfaces may be clamped together to hide the indicia but reveal replaceable "write on" strips 44, Fig. 3 which may be used by students when identifying the threads. In Figs. 6-8 (not shown) the indicia strip is concealed by a sleeve which does not however cover the screw threaded holes, and the sleeve may be provided with adhesively mounted "write on" strips.
Patent GB-429698-A (GB)
Title: Improvements in or relating to locks
IPC: E05B63/00
Filed: 1933-12-21
Abstract: 429,698. Locks. CARPENTER, G. B., 3B, Nevern Road, Earl's Court, London. Dec. 21, 1933, No. 36004. [Class 44] In a key-operated lock the bolt 3 is actuated through the medium of a sliding member 8 moved by the key and connected by a pin 19 to the short arm of a lever 15 pivoted at 16 and connected by its longer arm to the bolt, so that the movement of the bolt is greater than that of the member 8. The movement of the bolt is about half the width of the casing 4. A pin 12 on the member 8 engages slots 13 in wards 6 to prevent movement until the wards are moved by the key. In another form, the member 8 moves in the same direction as the bolt and transmits its movement to the bolt by a lever pivoted between its ends.
Patent GB-494707-A (GB)
Title: Improvements in or relating to non-curling stiffened fabrics
IPC: D06M23/18
Filed: 1937-12-29
Abstract: Flat, non-curling stiffened fabrics are produced by interspersing right- and left-hand twisted yarns in the warp or weft or both of the fabric, then subjecting to a transparency or other finishing process having a stiffening effect.  Such processes include all conventional methods of transparentizing and parchmentizing by means of acids, lyes and other swelling agents.
Patent GB-1526243-A (GB)
Title: Dc electric motor control circuits
IPC: H02P7/285
Filed: 1975-09-02
Abstract: 1526243 Automatic current control SIEMENS AG 2 Sept 1975 [26 Sept 1974] 36044/75 Heading G3R [Also in Division H2]  A D.C. electric motor control circuit comprises a control amplifier RV driving a thyristor power amplifier TV which supplies current im to a motor M, a tachogenerator T driven by the motor, a coupling circuit linking the outputs of the tachogenerator and the control amplifier to produce an output voltage proportional to the current in the motor at any instant, and a comparator device for comparing the output voltage with two oppositely poled reference voltages to produce a resultant control setting voltage whenever a part of the output voltage exceeds either one of the reference voltages, the resultant control setting voltage acting on the control amplifier so that the current flowing in the motor does not exceed a value determined by the reference voltages. As shown, the output voltage is provided by an amplifier V and the comparator consists of two potentiometers P1 and P2, one or other of the diodes D1, D2 conducting when the corresponding reference voltage is exceeded.
Patent GB-168278-A (GB)
Title: Improvements in and relating to valves
IPC: F16K17/00
Filed: 1920-12-23
Abstract: 168,278. Auld & Sons, Ltd., D., and Rose, D. Dec. 23, 1920. Rotary disc valves. - A valve unit more particularly for a lubrication system having means for filtering and cooling the lubricant comprises a casing having main inlet and outlet ports A, B, and auxiliary outlet and inlet ports C, D which lead to and from a filter chamber g. A disc valve i is operated by a spindle j and is provided with two ports k, l, shaped as shown. When the valve is in the position shown, liquid passes by the ports A, l, e to the chamber g, and then through ports D, k to the outlet B. When the valve is turned through 180‹, the liquid passes direct from the port A to the port B through the passage k, and the filter chamber may then be inspected or cleaned. To facilitate the movement of the valve, a collar o and annular member o<1> are provided with coacting projections such as balls or rollers, and recesses, which register when the ports are in alignment. When the valve is rotated, it is raised from its seat so that the fluid pressure acts on both sides. A non-return check valve p<1> is pressed on its seat on the main valve by a spring q.
Patent GB-1009040-A (GB)
Title: Pressure loaded fluid operated motor
IPC: F04C2/14
Filed: 1962-09-21
Abstract: 1,009,040. Rotary fluid-operated motors. CESSNA AIRCRAFT CO. Sept. 21, 1962 [Oct. 10, 1961], No. 36070/62. Heading F1F. In a pressure-loaded gear motor a shallow chamber 41 (Fig. 1) defined by an end plate 22, a flexible cheek plate 38 for gears 16, 18 (Fig. 2), and O-rings 40, 62, 64 communicates with the high-pressure side of a flow-restricting orifice 48 through ducts 45, 46, a small proportion of fluid trapped between the meshing gear-teeth on the low-pressure side of the gears being discharged to a reservoir 34 for working fluid through a port 44, a duct 42 and said orifice, whereby the pressure in chamber 41 varies with the speed of the gears. Pressure in ducts 42 is relieved to the high-pressure side of the gears through a spring-biased valve 54 and a port 66, when pressure between the meshing gear-teeth becomes excessive. The motor is supplied with fluid through an inlet 24 by a pump 28 connected to reservoir 34, low-pressure fluid being returned to the reservior from an outlet 30.
Patent GB-155786-A (GB)
Title: Improvements in or relating to rotary pumps
IPC: F04C2/344
Filed: 1920-12-23
Abstract: 155,786. Thirion, J. A. Sept. 21, 1918, [Convention date]. Fixed-abutment type; discharge and suction passages.-In a rotary pump of the axially-sliding vane type, shown in development in Fig. 1, the liquid being pumped is drawn by the vanes b through an inlet h into one portion of an annular chamber m, Fig. 2, and thence through side chambers g and ports e<2>, f<2> into the spaces formed between the vanes b on opposite sides of the rotor a. Discharge takes place through ports e<3>, f<3> and side chambers i into the other portion of the chamber m communicating with the outlet j, the two portions of said chamber being separated by two partitions w. The vanes b are displaced axially in the rotor slots by cam-surfaces p, p<1> engaging rollers b<1>, b<2> on the vanes.
Patent GB-965232-A (GB)
Title: Drawing and rolling method
IPC: B21C1/16
Filed: 1960-10-21
Abstract: 965,232. Making sheets and profile strip; producing metal flow by rotary rubbing tools. J. PFEIFFER. Oct. 21, 1960 [Nov. 26, 1959; Sept. 10, 1960], No. 36124/60. Headings B3A, B3M and B3V. An apparatus for drawing and rolling is characterized in that, in operation a strip of material is moved in a longitudinal direction, and a rotating part with a working face having projections is applied to it so as to reduce the thickness of the strip by plastic deformation, the working face moving in the same direction as, but at a higher speed than, the strip. The apparatus consists of brakes 4, a ribbed rotaing drawing member 5 which co-operates with a flat anvil 6 and a sheet or strip-tensioning device 7. As the undeformed material 3a enters the drawing gap it is gripped by the ribs 5a on the drawing member 5 and small accumulations of material x build up in front of the ribs and as the ribs approach the anvil 6 these accumulations are forced into the main mass of the material whose thickness is determined by the drawing gap. In another embodiment for reducing the thickness of a strip which can be around the brake consists of a plurality of braked looping rollers 4 and the anvil 6 is dish-shaped. The ribs of the drawing member may have a herringbone configuration by means of which a controlled variation in width of the material can be obtained in addition to a reduction in thickness. Profiled strip 3b is produced by the method utilizing drawing members 5 and anvils 6 arranged as shown in Figs. 5a and 5b.
Patent GB-662843-A (GB)
Title: Control unit for an automatic steering system
IPC: G05D1/04
Filed: 1946-12-06
Abstract: 662,843. Automatic steering control systems. BENDIX AVIATION CORPORATION. Dec. 6, 1946 [Feb. 1, 1946], No. 36218/46. Class 38 (iv). The automatic steering system disclosed in Specification 662,842 is modified by the addition that the manual controls are grouped and arranged within a casing. The three potentiometers 210, 211, 212, controlling turn, bank and climb respectively, are ganged; the three trimmer potentiometers 164, 166, 167 are mounted in their appropriate planes, and the transformer windings associated with the controls have a common primary 170. A cam 171 opens switch 173 (to release the brake on the servomotor driving the compass transmitter) when a manual turn is initiated. A master switch is mounted on the top of the casing. Specifications 662,831, 662,832, 662,839 and 662,860 are referred to.