baber/WOPTO huggingface dataset:
Patent GB-803491-A (GB)
Title: Improvements in tubular heat exchangers
Inventor: HUTCHINSON MYLES
IPC: F28D7/10
Filed: 1956-02-28
Abstract: 803,491. Tubular heat exchangers. CLARKE, CHAPMAN & CO., Ltd. May 28, 1957 [Feb. 28, 1956], No. 6193/56. Class 64(3)  A heat exchange element in which a hot gas is cooled by a liquid comprises a double-walled outer tube 1 forming an open - ended jacket 3 for cooling liquid which flows-also through a concentric inner tube 4, an inlet nozzle, Fig. 1A, for the cooling liquid having inclined, angularly spaced radial tubular passages 8 leading to the jacket 3 and an axial connection 7 to the inner tube 4, an outlet nozzle for the liquid comprising a conical chamber 12 having a base 14 equal in diameter to the external diameter of the tube I, peripherally disposed longitudinal passages 17 leading from the jacket to the chamber, and an axial connection 'between the inner tube 4 arid the chamber, radial openings, e.g. 18, Fig. 1B, being formed between said passages to permit entry and discharge of hot gases, as indicated by the arrows A and B, to and from the space 11 between the tubes 1 and 4. In the form shown, a plurality of helical fins 19 are provided on the tube 4. A number of the heat exchange elements may be mounted in a casing through which hot gases under pressure are passed, the gases flowing also through the annular space 11 of each element, whilst cooling water is simultaneously passed through the jackets 3 and inner tubes 4 of the elements.
Patent GB-1331903-A (GB)
Title: Substituted alkylcyanoalkoxypyrazol 3 yl carbamic acid esters process for their preparation and their use as insecticides or acaricides
IPC: C07D231/32
Filed: 1972-02-10
Abstract: 1331903 Substituted O-pyrazol(3)yl carbamic acid esters BAYER AG 10 Feb 1972 [10 Feb 1971] 6299/72 Heading C2C The invention comprises N,N-dimethyl-O- [1 - alkyl - 4 - cyano - 5 - alkoxypyrazol(3)yl]- carbamic acid esters of general Formula (I) wherein R and R 1  are each C 1-4  alkyl groups. The esters are prepared by (a) reacting a pyrazole derivative of Formula (II) as an alkali metal, alkaline earth metal or ammonium salt or in the presence of an acidbinding agent, with N,N-dimethyl carbamic acid chloride, or (b) reacting a compound of Formula (II) with a stoichiometric excess of phosgene preferably at pH < 7 to give the corresponding chloroformic acid ester and then reacting the latter with dimethylamine, or (c) reacting a compound of Formula (II) with the stoichiometrically equivalent amount of phosgene, preferably at a pH of about 8, to give the corresponding bis-(pyrazolyl)-carbonate and then cleaving the latter using dimethylamine. The preparations are preferably carried out in the presence of a solvent or diluent and at 25-80 C. The examples describe the preparation of compounds of Formula (I) wherein R 1  is -CH 3  and R is -CH 3 , -C 2 H 5  and -i-C 3 H 7 . The present carbamic acid esters possess insecticidal properties and the present invention further comprises an insecticidal or acaricidal composition comprising as active ingredient an ester of Formula (I) mixed with a solid or liquefied gaseous diluent or carrier or mixed with a liquid diluent or carrier containing a surface-active agent. As methods of combating insect or acarid pests the invention also envisages the application to the pests, or to their habitat, or to areas in which crops are growing or are to be grown, a compound of Formula (I) either alone or in a composition.
Patent GB-945242-A (GB)
Title: Improvements in or relating to the processing of metal strip
IPC: B23K11/087
Filed: 1960-02-23
Abstract: 945,242. Producing metal strip; welding by pressure; broaching. UNITED ENGINEERING & FOUNDRY CO. Feb. 23, 1960 [April 1, 1959], No. 6317/60. Headings B3A, B3L and B3R. In preparing strip metal for a production line for continuously processing metal strip, the leading end of one strip is abutted with the trailing end of a strip already in the line, the ends are welded together, the strip is gripped, the weld is moved in a single step from the welding position to a flash trimming position within flash trimming means and the flash is trimmed from the weld. The strip processing line comprises a looping device 11 secured to the frame of a flash welder 12 having a gauge bar 12a, front and back guides 12b and clamps 22, 23, a flash trimming device 13, a shear 14 for cutting out comers of the strips at the line of the weld, a longitudinally movable strip clamping assembly 15 carrying a looping device 16, a roller conveyer 17, a pair of pinch rolls 18 and a looping pit 19 into which the strip is gathered and withdrawn therefrom for further processing, e.g. pickling. The flash trimmer has two pairs of clamps 25, 26 to grip the strip on each side of the weld, and knife holders 27 connected to piston and cylinder devices for traverse across the weld, the holders each carrying pairs of opposed knives 29, 31, 32, 33, 34, Fig. 2, which are progressively closer together to provide a succession of cuts, the last level with the strip. The shear 14 consists of two pairs of dies 35, 36, actuated by piston, cylinder device 37, which cut out the strip comers at the weld line as in Fig. 3. The clamping assembly 15 comprises a pair of clamps 38 connected to a piston, cylinder device 39 on a frame 41 carried by a carriage 42 movable along a track 44 by a piston, cylinder device 46. A member 47 on the carriage engages a stop 48 when the latter is raised by a piston, cylinder 49. In operation, after the ends have been welded and unclamped by the clamps 22, 23, the strip is moved in one step to position the weld between the trimming knives by clamping the strip in the clamp 38 and actuating the piston of the device 46 in a full stroke to the right. The strip is clamped by clamps 25, 26 and the flash removed and the clamp 38 opened and the carriage 42 returned to its original position. The clamps 38 are reengaged, the stop 48 raised and after flash trimming the strip is moved in one step by the piston of the device 46 to position the weld within the dies 35 for edge cutting.
Patent GB-867296-A (GB)
Title: A process for the production of butadiene and isoprene
IPC: C07C7/00
Filed: 1960-02-23
Abstract: <PICT:0867296/IV (b)/1> Butadiene and isoprene are obtained by catalytic dehydrogenation of a mixture of n-butylene and tert.-amylenes, separating lighter and heavier materials to recover a mono-and di-olefinic C4/C5 fraction, fractionating to separate C4 hydrocarbons from C5 hydrocarbons and separately recovering butadiene and isoprene.  Referring to Fig. 1, a butane stream 10 is dehydrogenated at 12 and separated at 15 into butane, which is recycled, and butylene and butadiene.  The separation may be by extractive distillation, e.g. with acetonitrile/water.  The solvent is stripped and butadiene then recovered by solution, e.g. in cuprous ammonium acetate, furfural, acetone/water or acetonitrile/water in unit 19.  Part of the butylene stream 23 is treated at 24 for removal of isobutylene, e.g. by treatment with sulphuric acid (which may contain ethyl alcohol) or a supported phosphoric acid catalyst, or by extractive distillation or by fractionation to separate butene-2. Tertiary amylenes are separated from amylene stream 25 at 27 by sulphuric acid treatment or selective formation of alcohol or ether, which is then decomposed.  The amylenes and butylenes are mixed, heated, mixed with an equimolar quantity of steam and dehydrogenated (at 550-680 DEG C. and less than 50 p.s.i.a., over iron oxide promoted with chromium oxide and potassium carbonate, or nickel and calcium phosphates containing chromium oxide).  The resultant stream 35 is passed to stripper-scrubber 37 fed at the top with a hydrocarbon oil, e.g. a heavy catalytically cracked gas oil fraction boiling in the range 260-370 DEG C., which dissolves out heavy polymeric material, and at the bottom with high pressure steam, which strips light hydrocarbons from the oil.  The gas is cooled to liquefy water, which is separated in separator 41, then cooled with liquid ammonia to separate C2 and lower boiling materials, which are contacted in tower 48 with oil from the stripper-scrubber 37 to dissolve C3 and heavier hydrocarbons, which are then recovered in the stripper-scrubber.  The liquid from separator 45 is depropanised in tower 51 and separated in C4 and C5 hydrocarbons in tower 53.  The C4 hydrocarbons pass by line 55 for butadiene recovery and butylene recycle, at least part being returned to unit 15 to prevent build up of butane.  The C5 hydrocarbons are extractively distilled at 56 with acetonitrile/water to recover dienes, which are separated at 61 into isoprene and piperylene and amylenes, which are recycled to the dehydrogenation.  Specifications 593,849, 649,444 and 679,082 are referred to.
Patent GB-115034-A (GB)
Title: A Process for Decorating Flat and Circular Surfaces of any Description for Building and Decorative Purposes.
Inventor: HART JOHN HENRY
IPC: B44C1/00
Filed: 1918-04-15
Abstract: 115,034. Hart, J. H., (Assignee of Oxlade, G. C.). April 13, 1917, [Convention date]. Ornamenting.-Consists in a photographic process for ornamenting panels and other surfaces for building and decorative purposes. The surface is first coated with a solution containing gelatine or other glutinous substance, bichromate of potash, ammonia, or soda, and whiting, kalsomine, or other water paint, or powdered pigment. The coating is then dried in a darkened room, exposed to light under a negative, and washed in hot water. Reference has been directed by the Comptroller to Specification 7800/09, [Class 98 (ii), Photographic processes &c.].
Patent GB-1248725-A (GB)
Title: Improvements in or relating to air pressure operated atomizers
Inventor: TACCON DANIZZO
IPC: B05B7/12
Filed: 1970-02-10
Abstract: 1,248,725. Spray producer. D. TACLON. 10 Feb., 1970, No. 6352/70. Heading B2F. An air pressure operated atomiser comprises a body 7, with a duct 11, for compressed air and a parallel duct 12 for liquid (see Fig. 3) both ducts being simultaneously operated by lever 10, to feed air via ducts 5 and liquid via duct 4, into housing 8, wherein the liquid flowing through transverse passage 2 is combined in chamber 30, with the air and formed into a spray 9 by atomiser nozzle 3. The flow of liquid is controlled by needle valve 1 which is adjusted by head 6.
Patent GB-501952-A (GB)
Title: An improved collapsable structure for furniture and the like
IPC: A47C4/52
Filed: 1938-03-01
Abstract: 501,952. Folding seats, tables, &c. PRUDENZANO, R. March 1, 1938, No. 6384. [Classes 52 (ii) and 52 (iii)] The main members of a collapsable table, stool, chair, &c. are of L-section, the secondary members hinged thereto or sliding thereon being housed, when the' article is collapsed. within a hollow parallelopiped formed by the main members. In one embodiment, Fig. 4, a table comprises four leg members 21 ... 24, connected by pairs of ties 25 pivoted to each other at the centre, the upper ends being pivoted to the legs and the lower ends adapted to slide thereon being fixed to guides 27. The top comprises wooden members 31 ... 36, Fig. 7, hinged together and adapted to, fold into a rectangular tube which may house the frame and other articles of furniture. The top is provided with holes which fit over pins provided at the top of the legs. In another embodiment, Fig. 1, a chair is composed.of two back L-section members 13, 14 and two front members 11, 11<1> and 12, 121, hinged to form seat supports in the open position. A cloth seat may be provided which is also housed within the main members when the chair is collapsed.
Patent GB-862145-A (GB)
Title: Improvements relating to nuclear reactors
IPC: G21C7/02
Filed: 1959-02-24
Abstract: 862,145. Controlling nuclear reactors. VITRO CORPORATION OF AMERICA. Feb. 24, 1959, No. 6409/59. Class 39(4). A nuclear reactor is controlled solely by controlling its temperature. Neutron leakage and other effects give it a negative temperature coefficient of reactivity, and the excess reactivity is such that the reactivity falls to zero at a fairly low temperature. This limiting temperature may be below room temperature, so that the reactor must be cooled in order to work, or it may be a little above room temperature, in which case a heater is used to shut down the reactor. The Figures show a water moderated and reflected reactor having radial plates 21 of a mixture of 90%-enriched UO 2  and Al clad in Al mounted on a hollow post 22. The post contains plates 25 of fuel or absorber which are used to adjust the reactivity to the desired value at the last stage of construction, or after prolonged burn-up. A cooling jacket 27 is provided through which is circulated water to cool and control the reactor. Moderators other than water, e.g. D 2 O, graphite, or organic liquids, may be used. Specification 817,751 is referred to.
Patent GB-1501311-A (GB)
Title: Bistable circuit
IPC: H03K3/012
Filed: 1976-02-19
Abstract: 1501311 Cross-coupled bi-stable MARCONI CO Ltd 8 Nov 1976 [19 Feb 1976] 06529/76 Heading H3T A cross-coupled bi-stable circuit comprises first, second and third pairs of transistors T3-T1, T4-T2, and T7-T8 substantially as shown in Fig. 2 and means for applying clock signals so as to switch current from an inner to an outer one transistor of the pairs T3-T1, T4-T2 in dependence upon the state of an input signal applied to a first transistor of the first and second pairs. The means for switching current may comprise a fourth transistor pair T5-T6. Data input applied to T3 and/or T4 may be single ended or complementary, as may the clock input applied to T5 and/or T6. Items 5, 6, 18 are level-shifting circuits. Operation.-With T6 conducting (ON) T1 and T2 are non-conducting (OFF) and the outputs 14, 15 may charge in response to the data input 7, 8, only one of transistors T3, T4 being ON. With T5 ON, the current which was previously flowing in T3 or T4 is transferred to the corresponding transistor T1 or T2, thus maintaining the outputs 14, 15 at their previous states. Outputs 14, 15 are effectively isolated from the switching transients which occur when current is being transferred from T3 to T 1 or vice versa (or T4 and T2 as appropriate) and this isolation helps to minimize clock breakthrough. This, and the fact that the output nodes have less stray capacity due to fewer components being connected to them than in a prior art arrangement (Fig. 1, not shown) is said to enable a discrete component embodiment to be used at up to 1À2 GHz.
Patent GB-640741-A (GB)
Title: Improvements in or relating to aircraft undercarriages
IPC: B64C25/12
Filed: 1948-03-02
Abstract: 640,741. Retractable undercarriages. FAIREY AVIATION CO., Ltd., COSTIGAN, F. J., and MORRIS, K. W. March 2, 1948, No. 6576. [Class 4] An undercarriage comprises twin wheels each on one of a pair of legs arranged to be retracted about fore-and-aft pivots by swinging laterally in opposite directions and upwardly into a well, a main leg carrying a wheel being arranged to be pivotally secured to the aircraft and a secondary leg carrying a wheel being pivotally secured to the main leg. In the form shown, the main leg 10 and the secondary leg 19 are pivoted together at 18 and carry shock absorbers 15 mounting wheels 14 and 20 respectively. The main leg is pivoted at 11 to the aircraft structure 12 and at 25 to one end of a breakable strut 24 also pivoted to the structure at 26. A radius rod 21 is pivoted to the structure 12 and to the leg 19 at 22. When the strut 24 is broken at 27 the pivot 11 is rotated to retract the undercarriage into the well 13. Fairings 31, 32 (Fig. 5, not shown) are connected by links to the legs 10 and 19 to cover the well 13 when the undercarriage is retracted.
Patent GB-255021-A (GB)
Title: Improvements in machines for applying wrapped articles to folders
IPC: B65B15/02
Filed: 1926-03-09
Abstract: 255,021. Wrigley Junr. Co., W., (Assignees of Ranney, W. B., and Johnson, A. E.). July 9, 1925, [Convention date]. Carding-apparatus.- Relates to a machine for applying wrapped articles, such as sticks of gum, to cards or folders. The cards A, which are of the form shown in Fig. 7, are adapted to be folded along a scored line a, and are provided with cutout tongues b, b<1>, which may be of different lengths to accommodate articles of different sizes. The cards are stacked in a magazine c, Fig. 4, from which they are fed by fingers 14b on a reciprocating plate 14, between feed rolls 11, Figs. 4 and 13. In this position, spring members 38 press down the tongues b, b<1> out of the plane of the card, the main part of which is pressed slightly upwards by inclines. This action threads the tongues between the folds of the packets B, B'. The packets are conveyed into position from magazines D, D', Figs. 4 and 14, by a carrier plate 12, with slots adapted to receive the packets. Three slots 40 are of a suitable width and depth to receive packets B, Fig. 8. from the magazines D, and one slot 41 is shorter and deeper to receive packets B<1> from a magazine D<1>. The carrier plate is reciprocated to remove the packets from the magazines and to convey them to the position at which they are engaged by the tongues b, b<1>. The packets are normally retained in the magazines by a hinged bar 71 which is moved away at the appropriate times to allow the packets to fall on to the carrier bar. Hinged plates 53 rise and prevent endwise movement of the packets during the engagement. Adhesive is applied to the underside of the tongues b<1> before the application of the packets. The loaded cards are delivered from the machine by rolls 32.
Patent GB-424453-A (GB)
Title: Manufacture of new monoazo dyestuffs
IPC: C09B45/14
Filed: 1934-03-01
Abstract: Chromable green dyes are obtained by coupling a 1-arylamino-8-naphthol-4-sulphonic acid, which may contain another sulphonic acid group or groups and in which the aryl nucleus may carry substituents such as alkyl or alkoxy groups, with a diazotized unsulphonated 2-aminophenol substituted in the 6-position with halogen or a nitro, alkyl, alkoxy, acylamino or carboxy group, and possibly substituted in another position with halogen or a nitro, carboxy, sulphonamide, N-dialkylsulphonamide, or N-alkylarylsulphonamide group; the diazo compound must contain at least one halogen atom or nitro group.  Specified diazo compounds are those from 4 : 6-dichloro-2-aminophenol, 4 : 6-dinitro-2-aminophenol, 6-nitro-2-aminophenol, 6-chloro-2-aminophenol, 4-chloro-6-nitro-2-aminophenol, 4-bromo-6-nitro-2-aminophenol, 4-nitro-6-chloro-2-aminophenol, 3 : 4 : 6-trichloro-2-aminophenol, 6-methyl-4-nitro-2-aminophenol, 4-nitro-6-methoxy-2-aminophenol, 6-acetylamino-4-chloro-2-aminophenol, 5-chloro-3-amino-2-hydroxybenzoic acid, 5-nitro-3-amino-4-hydroxybenzoic acid, and 6-chloro-2-aminophenol-4-sulphonamide and its N-dialkyl or N-alkyl-aryl substitution products.  Specified coupling components are 1-phenylamino-8-naphthol-4-sulphonic acid, 1-p-tolylamino-8-naphthol-4-sulphonic acid, 1-p-methoxyphenylamino-8-naphthol-4-sulphonic acid, and 1-arylamino-8-naphthol-4 : 6-disulphonic acids.  Specifications 5749/06, [Class 2], 192,438, [Class 2 (iii)], and 351,400 are referred to.  4-Nitro-6-methoxy-2-aminophenol is prepared by treating 2 : 4-dinitro-6-chlorophenol with methanol and caustic soda, and reducing the product with sodium sulphide. 6-Acetylamino-4-chloro-2-aminophenol is prepared by acetylating 6-amino-4-chloro-2-nitrophenol and reducing the product. 5-Chloro-3-amino-2-hydroxybenzoic acid is prepared by nitrating 5-chloro-2-hydroxybenzoic acid and reducing the product. 5-Nitro-3-amino-4-hydroxybenzoic acid is prepared by dinitrating 4-hydroxybenzoic acid and reducing the product wirh sodium sulphide. The Specification as open to inspection under Sect. 91 states that carboxylic acid esters of 5-chloro-3-amino-2-hydroxybenzoic acid and of 5-nitro-3-amino-4-hydroxybenzoic acid may be used as diazo components.  The statement of claim indicates that the diazo component may be a halogenated (or nitrated) unsulphonated 2-aminophenol substituted (a) in the 6-position with a sulphonamide, N-dialkyl-sulphonamide, or N-aryl-alkylsulphonamide group or with a carboxylic amide group or N-dialkyl derivative thereof, and (b) in another position with an alkyl, alkoxy or acylamino group or with a carboxylic amide group or N-dialkyl derivative thereof.  The statement of claim states also that the aryl group in the coupling component may be substituted by halogen or by a nitro or substituted amino group.  This subject-matter does not appear in the Specification as accepted.
Patent GB-396476-A (GB)
Title: Improvements in or relating to percussive drills and the like
IPC: B25D9/10
Filed: 1932-03-05
Abstract: 396,476. Percussive tools. BAILLIE, S., Pool Hayes Colliery, Short Heath, near Wolverhampton. March 5, 1932, No. 6700. Addition to 342,356. [Class 124.] In a modification of the percussive tool described in the parent Specification the rotary body bearing the cam surface 10 is formed as a piston 8 to act inside a reciprocating cylinder 11. The blow produced by this cylinder due to its reciprocation from the cam is augmented by the explosion of a combustible mixture within it, this mixture being supplied to the cylinder by the hollow shaft 21, 23. Exhaust takes place through the ports 26, scavenging being assisted by vanes 25. In a modification no explosion occurs but an air cushion is formed between the piston and cylinder to assist the force of the downward blow.
Patent GB-634620-A (GB)
Title: Improvements in or relating to apparatus suitable for use in accelerating the setting of adhesive between shoe uppers and shoe bottom members during the manufacture of shoes
IPC: A43D25/20
Filed: 1948-03-04
Abstract: 634,620. Cement-lasting. BRITISH UNITED SHOE MACHINERY CO., Ltd., and ROBSON, W. S. March 4, 1948, No. 6738. [Class 17 (i)'] [Also in Group XI] Apparatus for accelerating the setting of adhesive between an overlasted marginal portion of a shoe upper and the shoe bottom member comprises a steel U-shaped portable tool 1, Fig. 3, with a copper bridging piece 3, and electric induction heating means shown in Fig. 2. The heating means has a transformer core 21 with armature 33 pivoted at 29 and a primary coil 45 connected through a mercury switch 59 and resistance 53 to an A.C. supply. When the hand tool 1 is introduced over the core 21, its weight depresses a rod 69 which tilts the switch 59 short circuiting the resistance 53 to increase the current in the primary coil sufficiently to attract the armature 33 against a spring 37 to close the air gap. The steel portion 1 rapidly heats while the bridge 3 to which the handle 9 is attached remains cool and, when heated, it may be introduced under the wiper of a bed-lasting machine to set adhesive, being returned to the heating means between operations. Specifications 142,931, [Class 17 (i)], 373,124, 412,198, 461,326, 469,805, 470,643 and 478,060 are referred to.