baber/WOPTO huggingface dataset:
Patent GB-867869-A (GB)
Title: Improvements in or relating to heat exchangers
Inventor: BATTLE NORMAN
IPC: F28F3/08
Filed: 1957-06-14
Abstract: 867,869. Plate heat exchangers. ROLLSROYCE Ltd. June 11, 1958 [June 14, 1957], No. 18926/57. Class 64(3) [Also in Group XXII] In a plate heat exchanger 10 which is disposed inside a tubular casing 16 and is fed with the fluids which are to be in heat exchange relationship between adjacent pairs of plates through the pipes 13, the individual plates 11 are rectangular and have parallel straight corrugations 26a extending at an acute angle preferably 45 degrees, to their longitudinal axes. Adjacent plates are stacked so that their corrugations extend substantially at right angles and each plate has ports 21a, 22a, 23a and 24a pairs of which e.g. 21a and 24a are formed in raised parts 25a of the plate so that when two plates are put together with their corrugations in contact the raised parts of the plates also come into contact so that the ports form a by-pass hole for the fluid which is not circulating between these plates. Two slightly different sets of plates are required in the above example but by arranging the raised parts on the same side of the plate a single set of similar plates suffice.
Patent GB-1136464-A (GB)
Title: Electro-optical scanning method for preparing etching resists
IPC: H04N1/50
Filed: 1967-04-25
Abstract: 1,136,464. Copying in colour by scanning. W. B. MARSH, and W. M. THODE. 25 April, 1967 [20 May, 1966], No. 18965/67. Heading H4F.  A method of colour reproduction in which an original is scanned photo-electrically and gravure resists are produced through which members are etched to form printing plates for laying down ink on a reproducing surface is characterized by the step of producing the gravure resists directly by exposure to the modulated light in the output part of the photo-electric scanner. The invention eliminates the step in the known art whereby photographic copies are produced in the output part of the scanner and the resists are produced with the aid of these copies. Three resists are produced (either simultaneously or sequentially depending on the character of the scanner used) corresponding to the distribution of red, green and blue light in the original and serve to control the etching respectively of cyan, magenta and yellow printing plates. Additionally a fourth "key" or black printer" resist may be produced in response to infra-red scanning of the original or by means of a suitable signal derived from red, green and blue light signals. Reference is made to the known techniques of colour and tone correction, and under-colour removal. The exposed resists after hot water development are laid down on copper printing cylinders and have an etchant applied thereto. The resists are pre-exposed so as to cause the formation of a cross-hatched pattern of ink receiving cells on the cylinder surfaces. Reference is made to the use of a carbon tissue type of resist.
Patent GB-1415636-A (GB)
Title: Process for the preparation of methyl or ethyl esters of acrylic or methacrylic acid
IPC: C07C69/54
Filed: 1974-04-30
Abstract: 1415636 Methyl and ethyl acrylates and methacrylates SOC ITALIANA RESINE SIR SpA 30 April 1974 [11 May 1973] 18967/74 Heading C2C Methyl or ethyl esters of acrylic or methacrylic acid are prepared by reacting acrolein or methacrolein with oxygen or gases containing free oxygen and methanol or ethanol in the gas phase and in the presence of a catalyst having the general formula or or where Me denotes a chromium, manganese, iron, cobalt, nickel, copper, zinc, silver, cadmium, gold, mercury, sodium, barium, calcium, cerium, bismuth, thorium, uranium, lead, antimony, tin, phosphorus or boron atom, a has a value of from 6 to 12, b has a value of from 1 to 6, c has a value of from 0 to 5, d has a value of from 1 to 6, x has a value of from 20À5 to 58À5, y has a value of from 21 to 61À5, and z has a value of from 23À5 to 76À5. The catalysts may be used supported for example on silica, alumina, magnesia, titania or ziroonia, and may be used in fixed, moving or fluid bed. Inert gaseous diluents (e.g. nitrogen, carbon dioxide or steam) may be present. If the amount of alcohol is less than that required to form ester, a mixture of free acid and ester may be obtained. A gas mixture containing acrolein or methacrolein obtained by the catalytic oxidation of propylene or isobutene may be used with alcohol, and possible oxygen, added.
Patent GB-919108-A (GB)
Title: Process for the manufacture of calcium oxide of low reactivity
IPC: C01F11/02
Filed: 1959-06-03
Abstract: Calcium oxide is prepared by briquetting powdered calcium carbonate, hydroxide or oxide, heating it at a temperature at which sintering does not occur until water and/or carbon dioxide have been expelled, and then raising the temperature to cause sintering.  The briquettes are heated at 400 DEG  to 600 DEG C. in the case of calcium hydroxide, and at 800 DEG  to 900 DEG C. in the case of calcium carbonate, for 1 to 2 hours, and then sintered at 1100 DEG  to 1600 DEG C.  Anthracite or coke may be mixed with the material before briquetting when the product is to be used for the manufacture of calcium carbide.
Patent GB-1063885-A (GB)
Title: Aminopyridazinone derivatives
IPC: A61F5/30
Filed: 1964-06-30
Abstract: The invention comprises (1) novel compounds of Formula I <FORM:1063885/C2/1> in which either R1 is an alkyl group having 1-4 carbon atoms and R2 is a halogen atom, or R1 is a hydrogen atom or an alkyl group having 1-4 carbon atoms and R2 is an alkoxy group, and (2) the preparation of (a) compounds of Formula I in which R1 is a hydrogen atom and R2 is a halogen atom or alkoxy group by heating a 4-amino-3,6-di-substituted pyridazine derivative of formula <FORM:1063885/C2/2> in the presence of an alkali metal hydroxide or alkoxide, (b) compounds of Formula I in which R2 is a halogen atom or alkoxy group and R1 is an alkyl group having 1-4 carbon atoms by reacting an alkylating agent with a 4-substituted -3(2H)-pyridazinone of formula <FORM:1063885/C2/3> wherein R4 is an amino group, an acylamino group, or a halogen atom, and converting the 4-substituent in the resulting 2-alkyl-4-substituted -3(2H)-pyridazinone into an amino group when R4 is not an amino group, and (c) compounds of Formula I in which R2 is an alkoxy group and R1 is an alkyl group by reacting a 2 - alkyl - 4 - amino - 6 - halo - 3(2H) - pyridazinone with an alcohol.
Patent GB-200361-A (GB)
Title: Improvements in furnace fronts
IPC: F23M7/00
Filed: 1922-07-12
Abstract: 200,361. Howden & Co., Ltd., J., and Hume, C. W. July 12, 1922. Liquid-fuel furnaces; furnace fronts.-A furnace front comprises an outer plate 1, an inner plate 3, and a body piece 2, each consisting of a single casting. The body piece 2, as shown in Fig. 7, is in the form of an archway with a hollow ported roof and forms a distance piece between the plates 1 and 3 which are bolted together by bolts 4. A portable sill 2<1> is withdrawn when changing from solid to liquid fuel.
Patent GB-1105961-A (GB)
Title: Methods of and apparatus for laying concrete roads
Inventor: BURKS ALBERT EDWARD
IPC: E01C19/48
Filed: 1964-05-07
Abstract: 1,105,961. Concrete paving. NATIONAL RESEARCH DEVELOPMENT CORPORATION. 6, Aug., 1965 [7, May, 1964], No. 19116/64. Heading E1G. A concrete road is made by pouring wet concrete between fixed side formers onto a prepared sub-grade and fluidizing the concrete by agitation immediately prior to its entry beneath a profiling plate. The concrete may be laid in a first layer with provision for expansion joint members, covered with reinforcing matting and a second layer applied in the manner of the invention; or the concrete may be applied in one layer with the reinforcement supported at the desired height above the sub-base. The concrete may be laid by a machine having a wheeled chassis carrying in order a screed, a compactor or vibrator of the beam, tubular or poker type, a profiling plate and a float.
Patent GB-686709-A (GB)
Title: Improvements in or relating to new dihydroxy indane derivatives and method of preparing same
Inventor: HERZFELD SIMON H
IPC: C07C23/38
Filed: 1950-08-01
Abstract: The invention comprises 1 : 2-dihydroxy-4 : 5 : 6 : 7 : 8 : 8 - hexahalo - 4 : 7 - methano - 3a : 4 : 7 : 7a - tetrahydroindanes of the formula <FORM:0686709/IV (b)/1> where X is bromine or chlorine and their preparation by oxidizing the cyclopentene ring of a 4 : 5 : 6 : 7 : 8 : 8 - hexahalo - 4 : 7 - methano - 3a : 4 : 7 : 7a - tetrahydroindene (the Diels Alder adduct of hexahalocyclopentadiene and cyclopentadiene) with an organic peracid, e.g. peracetic or perbenzoic acid, and hydrolysing the oxidized product which may be a 1 : 2-epoxide or a 1 : 2-diester.  Where oxidation with organic peracids results in the formation of a mono- or diester of the desired glycol conversion to the glycol may be achieved by alcoholysis.  In an example the Diels Alder adduct of hexachlorocyclopentadiene and cyclopentadiene is oxidized with peracetic acid in acetic acid and the resultant 1 : 2-diacetoxy compound is heated with methanolic hydrochloric acid to give 1 : 2 - dihydioxy - 4 : 5 : 6 : 7 : 8 : 8 - hexachloro - 4 : 7 - methano - 3a : 4 : 7 : 7a - tetrahydroindane.  Specification 614,931 is referred to.
Patent GB-351245-A (GB)
Title: Improvements in luminous electric discharge tubes
IPC: H01J61/30
Filed: 1930-06-24
Abstract: 351,245. Glass manufacture. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent-Treuhand-Ges. f³r Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin.) June 24, 1930, No. 19216. Convention date, Aug. 29, 1929. [Class 56.] Blackening of the envelope of a luminous electricdischarge tube having a filling comprising one or more alkali-metal vapours, is prevented by forming it of a borosilicate glass, which contains less than 50 per cent but more than 10 per cent of silica. The silica may be partly (e.g. half) replaced by rare earth oxides, such as the oxides of lanthanum or didymium. Condensation of the vapour filling may be reduced by forming the envelope with an outer layer of a glass, which absorbs the infra-red rays, or by enclosing it in a surrounding tube.
Patent GB-1421848-A (GB)
Title: Laminar disc of mineral wood
IPC: D04H1/70
Filed: 1973-04-24
Abstract: 1421848 Laminated products ROCKWOOL AB 24 April 1973 [24 April 1972] 19221/73 Heading B5N A web of mineral wool comprises a plurality of strips 24, 25, 26 of mineral-wool fibres, the fibres in each strip being oriented transversely to the overall length of the web and the strips being assembled in the web so that their main surfaces are contained in substantially parallel planes transverse to the length of the web, the border portions of each strip at the opposed parallel surfaces thereof that are defined by the fibre ends and form part of the overall length of the web being progressively bent out of said planes towards one end of the web. The web may be made by feeding a mat 10 of mineral wool fibres intermittently in direction 11, cutting a strip 12 from the mat by knife 13, pushing the strip 13 upwardly into the funnelshaped mouth 36 of a channel 37 by piston 14 to bend the border portions 18<SP>1</SP>, 18<SP>11</SP> of the strip, the process being repeated to build up the web from a plurality of the strips, airing of a binding agent present in the strips being effected in an oven 21 prior to cutting the web by sawing device 22 in to lengths 23. The side walls of the channel are preferably formed of two continuously or intermittently movable belts.
Patent GB-939365-A (GB)
Title: Improvements in or relating to multi-stage refrigerating arrangements
IPC: F25B9/14
Filed: 1961-05-29
Abstract: 939,365. Refrigerating. PHILIPS' GLOEILAMPENFABRIEKEN N.V. May 29, 1961 [June 1, 1960], No. 19296/61. Class 29. A reversed hot-gas engine type refrigerating machine is cooled and driven by the expansion of a gas acting on the remote side of its piston and supplied from a separate compressor unit. The engine comprises piston VI and displacer XI carried on coaxial shafts IX, X, respectively, coupled by linkwork XII to reciprocate with the appropriate phase difference. These shafts work in a tubular body IV which, together with the shafts includes valve passages and ports adapted to admit gas from compressor 51 through cooler XV and pipe II to the space V beneath piston VI and to allow expanded gas to return from this space through pipe III to compressor 51. The working space VII of the engine and the space V beneath piston VI include annular baffles 62, 65 which are received in annular recesses in the piston and around which the gases are obliged to flow. Fins are provided in the recesses and the piston is made of thermally conducting material so that the gas expanding in space V to drive the engine cools the gas being compressed in space VII of the engine. A regenerator 67 is provided between space V and the source of compressed gas.
Patent GB-245813-A (GB)
Title: A gravity liquid-lifter or improvements in or relating to systems of raising liquids
IPC: F04F1/12
Filed: 1924-08-15
Abstract: 245,813. Upton, S. Aug. 15, 1924. Direct air pressure apparatus, automatic. - A system of raising liquids by means of a head of water supplied by a canal &c. comprises an operating chamber D connected by a pipe B to the high level water A and by an air pipe F to a closed container G which is fed from the high level water through the valved pipe H. During the filling of the chamber D, the air in the pipe F is compressed and forces the water in the chamber G through a pipe O to an open tank A<1>. During' the emptying of the chamber D through the valve E liquid flows into the chamber G, after which the cycle is repeated. The pipes B, H are controlled by valves C, M, and all the valves may be controlled by hand or by electrical or other external power. The liquid may be raised through several stages, the pipe F being connected to several chambers G at different levels. Reference has been directed by the Comptroller to Specifications 11936/90, 181,762, 182,412, 217,063, and 217,654.
Patent GB-452815-A (GB)
Title: Improvements in, or relating to, night latches
IPC: E05B59/00
Filed: 1935-07-08
Abstract: 452,815. Night latches. LEGGE & CO., Ltd., J., LEGGE, J. E., and LEGGE, F. V., Stafford Street, Willenhall, Staffordshire. July 8, 1935, No. 19399. [Class 44] A night latch comprising a spring-pressed latch bolt operated by a knob or handle from inside the door and by a key from the outside has a separate looking bolt mounted in the same casing and operated by a key inserted in a separate keyhole and acting entirely separately from key actuation of the latch bolt. A latch bolt D is actuated by a follower d on a knob on the inside of the door and by the usual flat strip from a barrel lock on the outside. A separate locking bolt E is actuated by a separate key from either side of the door and is locked by the usual levers or tumblers e<2>. There may also be a latch F mounted in the same casing and operable by a follower f from both sides of the door, the latch shown being similar to that described in Specification 421,010. A catch device d<5> as described in Specification 426,001 is provided to lock the latch bolt D from inside the door in its shot or retracted positions.
Patent GB-170631-A (GB)
Title: Improvements in cycles
IPC: B62M1/24
Filed: 1920-07-08
Abstract: 170,631. Millis, W. A. July 8, 1920. Treadle mechanism.-Two treadles A, Bare mounted on separate axles F so as to operate alternately two chain-wheels I, two chains J, and two free-wheels H on the back axle G. The treadle A, B are connected by a pin-and-slot device C, D, E. Reference has been directed by the Comptroller to Specification 9662/03.
Patent GB-862306-A (GB)
Title: Improvements in or relating to liquid fuel heating appliances
IPC: F24C5/08
Filed: 1958-06-18
Abstract: 862,306. Liquid fuel heating stoves. FRIEDRICH, K. June 1, 1959 [June 18, 1958], No. 19477/58. Class 126. [Also in Group XIII] A liquid fuel heating appliance for standing in a domestic fireplace has means through which combustion products are discharged either into the fireplace and thence into the chimney, or directly into the chimney, and means movable between one position in which substantially all the combustion products are directed through the discharge means and a second position in which substantially all the combustion products are directed through outlet means opening into the room in which the appliance stands. As shown, Fig. 3, the stove 2 has interior walls 6, 7 forming a duct 9 through which combustion products pass via a pipe 11 to the chimney 16, the outlet 12 for the combustion products being controlled by a damper 14 movable between an open position, and a closed position in which it acts as a heat reflector, and retainable in one or more intermediate positions. Air enters the stove through a grille 17 below the burner 1, becomes heated during passage between the wall 7 and the back wall 5 of the stove and enters the room through a grille 18. A fuel tank may be housed in a lateral extension of the stove casing. In a modification, the back wall 5 is omitted and the combustion products after passing down the duct 9 enter a pipe within the duct which leads through a sealed opening in the wall 7 to the chimney 16. Air entering the grille 17 passes between the wall 7 and the back of the fireplace.
Patent GB-647751-A (GB)
Title: Improvements relating to paper bags
IPC: B65D30/08
Filed: 1948-07-21
Abstract: 647,751. Cartons; packaging; paper and like bags. BIBBY & BARON, Ltd., and PEATFIELD, L. July 21, 1948, No. 19505. [Classes 18, 94(i) and 94(ii)] In a carton or gusseted bag composed of two webs of material united below a line a determining the top of the bag, the lining web is cut at the corners of the bag above said line, while some or all of the parts of the liner above said line are free from adhesive connection to the outer web, so that the said free parts, which form loose flaps, can be turned down on the material of the bag before the outer material in the bags is turned down finally to close the bag. As shown, flaps e and d are free. Thumb cuts g in the outer web are adapted to facilitate the folding inwards of said flaps, and a hole in the flap d provides, in conjunction with a thumb cut g, means for emptying the bag. Various methods of forming the top of the bag are described.
Patent GB-644560-A (GB)
Title: Improvements in or relating to electrolytic capacitors
IPC: H01G9/04
Filed: 1949-07-26
Abstract: 644,560. Electrolytic condensers. SPORING, P. A., BENTLEY, N. H., and TELEGRAPH CONDENSER CO., Ltd. July 26, 1949, No. 19634. [Class 37] An electrode for an electrolytic condenser comprises a metal base (e.g. aluminium foil), to the surface of which is applied, e.g. by spraying, a layer of an electrolytic film-forming metal, e.g. aluminium, the area of the layer being irregular and larger than that of the surface it covers. The surface is initially roughened or etched, either by sand-blasting or scratching, or by passing the foil through a hot solution of cupric chloride and hydrochloric acid.
Patent GB-1184361-A (GB)
Title: Heterocyclic Ketones, Alcohols, Ethers and Esters
IPC: C07C49/84
Filed: 1967-04-28
Abstract: 1,184,361. Therapeutic and pesticidal compositions containing aminoalcohols and their derivatives. UPJOHN CO. 28 April, 1967 [13 June, 1966], No. 19673/67. Headings A5B and A5E. [Also in Division C2] Therapeutic and herbicidal preparations contain as active ingredient compounds IV, IVa and IVb (including optically active forms and racemates and N-oxides, acid addition salts and quaternary ammonium compounds there of)  wherein n is 1, 2, 3 or 4, -N = Z represents a heterocyclic amino radical containing from 5 to 10 nuclear atoms, R is C 1-6  alkyl optionally substituted by hydroxy (the hydroxy group may be esterified in which case the ester is in the form of an acid addition salt), R', R" and R"' signify H, halogen, C 1-6  alkyl, C 1-6  alkoxy, aralkoxy, hydroxyalkoxy, OH, alkenyloxy, carboxyalkoxy, methylcarbamoyloxy or CF 3  or two of the symbols R', R" and R"' together signify 3,4-methylenedioxy, Ac is the acyl radical of a C 2-12  carboxylic acid and wherein the cycloalkyl radical may be disubstituted at the 3- or 4-position by methyl groups and with the proviso that in the case of compounds IVb wherein -N=Z is piperidino, Ac is acetyl and n is 2 then R', R" and R"' do not all represent hydrogen. Administration is orally or parenterally: diuretic, antihyperglycaemic and antidiabetic activities are associated with the preparations and edema associated with hepatic disease, edema and toxemia of pregnancy, hypertensive vascular disease, premenstral fluid retention and congestive heart failure may be treated. Trichloroacid addition salts are cited as being useful as herbicides. Salts with fluosilicic acid are useful as mothproofing agents. An electrocardiographic jelly comprises quaternised compounds IV, IVa and IVb, glycerol, starch and water.
Patent GB-571229-A (GB)
Title: Improvements in or relating to draught excluders for doors
IPC: E06B7/20
Filed: 1943-11-25
Abstract: 571,229. Draught excluders for doors. KIMPTON, W. H. Nov. 25, 1943, Nos. 19676/43 and 10827/44. [Class 20 (iii)] A draught excluder for the bottom edges of doors is suspended by a strip of flexible material 13 secured to the door and falls by gravity into contact with the floor when the raising spring 23 is depressed by engagement with the frame on closing the door. The strip is weighted by a metal plate secured thereto by rivets, punched out pieces, or stitching and is fastened to the door by a plate 15 and screws. The spring is a blade horizontally arranged beneath the strip and projecting beyond the edge of the door.
Patent GB-644960-A (GB)
Title: An appliance for supporting cooking utensils in spaced relationship with burners
IPC: F24C15/10
Filed: 1949-02-07
Abstract: 644,960. Cooking. ROGOZINSKI, S. Feb. 7, 1949, No. 19684/48. [Class 28(i)] [Also in Group XVII] A cylindrical collar 1, which may be stiffened by a rib 2, which has openings 6 for escape of gas, and which has overlapping ends adjustably locked by a pin 4 and keyhole-shaped slots 5, is placed beneath a cooking utensil to moderate the heating effect of the burner. One end may have a channel 7 to receive the other end.
Patent GB-459529-A (GB)
Title: Improvement relating to springing for chairs, settees, mattresses and the like
IPC: A47C7/35
Filed: 1935-07-10
Abstract: 459,529. Spring upholstery. PARKER, A. H., Gibbon Lane, Plymouth. July 10, 1935, No. 19701. [Class 52 (iv)] An assembly of pocketed upholstery springs is mounted as a unit in a chair or mattress frame by tension springs 7 at two or more sides of the structure which are adjustably secured to the frame by chains 8.
Patent GB-498690-A (GB)
Title: A bicycle brake lock
IPC: B62H5/18
Filed: 1937-07-17
Abstract: 498,690. Locking cycle &c. brakes against unauthorized use. GREAVES, F. W. July 17, 1937, No. 19830. [Class 79 (iii)] Bicycles &c. witl internal expanding brake shoes are pro tected against unauthorized use by the pro vision of key-operated means for holding a brake shoe in the expanded position independently of the normal actuating means. For this purpose, a cam or eccentric 7 may be rotatably mounted in the wall of the brake drum so as to be engageable with the midportion of a brake shoe 2, the flank 5 of which is slotted and bent up to form a bearing surface G for the cam &c. The cam stem is formed with a recess 9 which may be engaged directly by a key or tool but, preferably the key is associated, as shown, with a rotary barrel lock 10, the cam stem then being engaged by the key passing through the lock or by a lug forming part of the lock operated by the key.