baber/WOPTO huggingface dataset:
Patent GB-309849-A (GB)
Title: Improvements in or relating to the manufacture of resinous condensation products of aldehydes with phenol and urea, or of aldehydes & urea
IPC: C08G14/08
Filed: 1928-01-16
Abstract: 309,849. Crump, J. W., and Bakelite, Ltd. Jan. 16, 1928. Samples furnished. Urea-aldehyde and phenol-urea-aldehyde condensation products.-In preparing resinous condensation products from a phenol and a urea, or from a urea alone, and an aldehyde, the initial soluble and fusible condensation product is subjected first to distillation in vacuo and then to open pan boiling while the product is still in soluble form; the products so obtained may be rendered insoluble and infusible by further heating. The distillation in vacuo is preferably conducted in the presence of a dehydrating agent such as butyl alcohol, i.e. a dehydrating agent of non-acidic character capable of forming a constant-boiling mixture with water. The initial product of a urea-aldehyde condensation is preferably prepared by gradually adding a solution of the urea component in the aldehyde to the remainder of the aldehyde, the latter being hot and preferably boiling. Similarly, the initial product of a phenol-urea-aldehyde condensation is preferably prepared by gradually adding a solution of the urea component in part of the aldehyde to a hot and preferably boiling solution of the phenol component in the remainder of the aldehyde. The ratio by weight of phenol to urea is generally within the range 0.5-5 : 1, the ratio being generally in the lower part when the product is to. be used in making moulded and other solid products. and in the upper part when the resin is to be used in making lacquers &c. The process may be accelerated by the use of a condensing agent, which may be alkaline, acidic, or a salt aud is preferably added near or after the completion of the operation of bringing the reagents together. An alkaline condensing agent, such as hexamethylenetetramine, may be added towards or just after the completion of the mixing operation and an acid condensing agent, such as oxalic acid, at a later stage. In one example, a solution of urea in formaldehyde solution is added gradually to a boiling solution of formaldehyde containing a little ammonia and the mixture is boiled under reflux. The resulting syrup is then subjected to vacuum distillation at about 62‹ C. and 130 mm. vacuum, first alone and then after addition of butyl alcohol, and the product is finally transferred to an open pan and boiled. In other examples, conducted similarly, products are prepared from phenol, urea, and formaldehyde. phenol, methylurea, and formaldehyde, and phenol, phenylurea, and formaldehyde. The products of the examples are soluble in solvents such as ethyl or butyl alcohol and acetone, the solutions being useful as lacquers. Insoluble and infusible products can be obtained by further heating.
Patent GB-513772-A (GB)
Title: Improvements in or relating to the manufacture of chemical compounds from formaldehyde or an acetal thereof and an aliphatic alcohol, aldehyde, acetal, ketone or ether
Inventor: ROESSLER DEUTSCHE GOLD-UND SIL
IPC: C07C45/75
Filed: 1938-03-31
Abstract: 513,772. Acrolein and other aldehydes ; hydroxy-aldehydes. DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT VORM. ROESSLER. March 31, 1938; No. 1483/39. Convention date, April 1, 1937. Divided out of 9906/38. [Class 2 (iii)] Methylol compounds and unsaturated bodies derived therefrom such as hydracrylic aldehyde and acrolein are produced by reacting in the vapour phase formaldehyde or an acetal with an aliphatic alcohol, aldehyde, acetal, ketone, or ether, or with ethylene oxide which is an isomer of acetaldehyde. Formaldehyde and acetaldehyde may be used in the form of their solid polymers. A catalyst may be employed but is not necessary. If a catalyst is employed it may be of acid or basic nature, magnesia, alumina, zinc oxide, chalk, lime, beryllium oxide, sodium carbonate, alkali phosphate, silica gel, aluminium phosphate, boron phosphate and phosphoric acid, being mentioned as suitable, and carriers such as active carbon may be used. In an example acrolein is made by passing an equimolecular mixture of vapours of acetaldehyde and 30 per cent. formaldehyde over argillaceous earth at 260-300‹C.
Patent GB-1117945-A (GB)
Title: Preparation of dibenzocycloheptene derivatives
IPC: C07C/
Filed: 1966-01-12
Abstract: 5 - [3 - (C1- 5 alkyl) aminopropyl] or 5-[3-(C1- 5 alkyl) aminopropylidene] - 5H - debenzo [a, d]-cycloheptenes optionally having one or more C1- 5 alkyl, C1- 5 perfluoroalkyl, amino, mono-or di-(C1- 5 alkyl)amino, C1- 5 alkylsulphonamino, halogen, hydroxy, C1- 5 alkoxy, C1- 5 perfluoroalkoxy, carboxy, C1- 5 alkylsulphonyl, C1- 5 perfluroalkylsulphonyl, sulphamoyl, or mono- or di-(C1- 5 alkyl) sulphamoyl nuclear substituents are prepared by dehydrogenating the corresponding N,N - dialkyl - 10,11 - dihydro compound and then dealkylating the resulting unsaturated compound for example by reacting it with a cyanogen halide and hydrolysing the intermediate cyanamide or by reacting it with a halothioformate and hydrolysing the intermediate thiourethane or by reacting it with a haloformate and hydrolysing the urethane intermediate.  Reference has been directed by the Comptroller to Specifications 938,201, 974,710 and 1,008,263.
Patent GB-157807-A (GB)
Title: Improvements in and relating to photographic printing processes
IPC: G03F1/54
Filed: 1921-01-10
Abstract: 157,807. K³hn, H., and Graphische Kunstanstalten F. Bruckmann Akt.- Ges. July 26, 1916, [Convention date]. Addition to 157,216. Void [Published under Sect. 91 of the Act]. Photo-mechanical printing-surfaces.-The process of the parent Specification as open to inspection under Sect. 91 (3) (a) is applied to etching processes by hand or power press engraving. Normal exposure is not used but two layers are used in the printing or previously in the negative process, one under exposed and the other over exposed, and they are printed one over the other in the same colour. The covering error is avoided in that in the long print the grain of the shades is intentionally thrown over or made to print blind, either in the original etching of the copper layer or by after etching. In the long print the shades then appear grey and are capable of showing clearly the shade detail brought out in the short print.
Patent GB-321118-A (GB)
Title: Improvements in twin and multi-core electric cables
IPC: H01B7/08
Filed: 1929-01-16
Abstract: 321,118. St. Helens Cable & Rubber Co., Ltd., and Harrison, H. C. Jan. 16, 1929. Cables and conductors with identifying coverings.-A twin or multicore cable comprises conductors, each covered with insulating material which is applied in a plastic state, the insulating coverings differing in colour from each other and all the coverings being jointed together to form a unitary structure. In manufacture, the conductors may be separately insulated with coloured coverings, being then passed through adjustable roller dies before vulcanization of the coverings, the coverings being thus caused to adhere to one another. The cable may be formed by an extrusion machine having the same number of worm screws as there are different coloured insulations, the bodies of insulation being kept separate until they arrive at a common die where they are joined together. A further method of manufacture consists in passing the conductors through a longitudinal machine. In the case of a twin core cable, a sheet of vulcanized red rubber is placed on a similar sheet of black rubber, and the composite sheet is cut up into strips by passing the sheet between a roller and a series of cutting knives which, it is stated, also cause the strip of red rubber to adhere to the black rubber along the edges. Each composite strip thus formed is then opened out so as to obtain a strip one half red and one half black. The conductors are covered by passing them, with a composite strip above, and one below, them, through shaping rollers. The coverings may be cylindrical, adhering to each other side bv side so as to form a flat cable. A twin cable may consist of D-shaped cores adhering along the flat sides of the cores. In multi core cables, the outer cores may be of D-section, the inner cores being rectangular in section.
Patent GB-341710-A (GB)
Title: Improvements in oiling and dressing fibres for spinning
IPC: C09K23/00
Filed: 1930-01-16
Abstract: Fibres, preparatory to being spun, are oiled and dressed by treating with the condensation products, i.e. esters, amides, or ester-amides, of alkylol amines with organic carboxylic acids, sulphonic acids or sulphonated carboxylic acids of high molecular weight, or with aqueous emulsions of the condensation products or their salts. Examples of suitable alkylol amines are mono-, di and tri-ethanolamine, propanolamine, hydroxyethylaniline and cyclohexyl diethanolamine; examples of suitable acids are the high molecular weight acids of fats, hydroxy fatty acids, derivatives of fatty acids containing amino or halogen groups, aromatic carboxylic acids, their sulphonation products, sulphonic acids prepared from brown coal tar oils, and aromatic sulphonic acids containing side chains.  The said condensation products form water-soluble salts with acids, so that they may be washed out with acid baths.  In an example 100 parts (by weight) of loose wool are sprayed with 3 parts of a condensation product from mono-hydroxyethyl amine and oleic acid.  On treating with a bath containing formic acid, the wool is simultaneously washed and softened.
Patent GB-1534302-A (GB)
Title: Rotary kiln for producing an expanded clay product and a method of manufacturing the rotary kiln
IPC: F27B7/14
Filed: 1976-01-15
Abstract: 1534302 Rotary kilns LECA TRADING & CONCESSION A/S 15 Jan 1976 [23 Jan 1975] 01579/76 Heading F4B A rotary kiln for producing expanded clay products comprises an inner lining 10 with inwardly projecting lifter ribs 5A, 5B formed from refractory bricks provided an internal reinforcement 8, 18 respectively. Each rib may comprise a unitary brick as shown at 5A or a composite brick 5B, the first portion 5b being of the same height as the lining 10 and a second portion 5b protruding radially into the kiln. The reinforcement comprises steel bars which in the composite brick extend into larger diameter apertures in the portion 5b and are secured together by mortar. During operation, the portion 5b or the outermost portion of the unitary lifter may be worn away and a replacement portion 5b is added to the remaining stump and reinforcement bars. The kiln may include drying and firing sections.
Patent GB-835351-A (GB)
Title: Rectification of gases which are difficult to liquefy
IPC: F25J3/02
Filed: 1958-01-16
Abstract: 835,351. Cold separation of gas mixtures. SULZER FRERES S.A. Jan. 16, 1958 [Jan. 22, 1957], No. 1584/58. Class 8(2). In a low temperature gas mixture rectification apparatus suitable for separating deterium-rich hydrogen from crude gas wherein the incoming crude gas in a line 1 is cooled in a channel 4 of a heat exchanger 5 having a cold product channel 61 and a channel 14 traversed by a first portion of separated gas, e.g. pure hydrogen from the head 9 of column 6, part of said first portion of gas leaving the exchanger 5 is compressed at 30, cooled in exchangers 24, 23, 22, 17, traversed by a second portion of separated gas from the head of column 6 and by expansion in turbines 33, 35, 37 further cooled in an exchanger 12 traversed by said first and second portions of the separated gas, condensed in the boiling coil 42 located in the liquid collecting space at the base of the column 6, responded at a valve 43 and returned to the column as reflux. The cooling circuit may be by-passed through a valved duct 49 and during starting up extra cold is generated by a turbine 51 drawing from the exchanger 38 and discharging into the separated gas line 10 entering the exchanger 12.
Patent GB-714619-A (GB)
Title: Improvements in or relating to two-stroke single cylinder internal combustion engines
IPC: F02B75/34
Filed: 1952-01-21
Abstract: 714,619. Two-stroke engine. TEAGLE, W. T. Dec. 12, 1952 [Jan. 21, 1952], No. 1690/52. Class 7(2) In a two-stroke single-cylinder engine having the crank-shaft bearings 22, 23, Fig. 4, on one side of the cylinder axis and comprising a cylinder 1, Fig. 1, crankcase 3 and crankshaft bearing-housings 4, 5 cast as an integral unit, the vertcal cylinder wall is provided with a pair of diametrically opposed ports 10 of Which at least one is of a sufficient diameter to enable the gudgeon pin 19, Fig. 4, to be passed therethrough so that the piston and connecting rod can be assembled within the cylinder, at least one of the ports 10 being a piston-controlled inlet port whilst the other port is either used as an additional inlet or is blanked off, such as by a plate 33 after the piston and connecting rod have been assembled. The cylinder 1, Fig. 1, is formed with integral cooling fins 2, and the bearing housings 4, 5 are located at the extremity of a channel-like arm 6 by which the engine may be mounted. The ports 10 are provided below the fins 2 whilst at 90 degrees therefrom and somewhat higher in the cylinder is an exhaust port 11; a transfer passage is located diametrically opposite the exhaust port 11. The cylinder head is attached by bolts 14, Fig. 4, to the cylinder 1 which has a detachable liner 16. The crank pin 21a embodies a longitudinal lubricating passage 21b that is intersected by a groove 21c around the pin with a restriction 21d at one end, the circulation of petrol/oil mixture through these passages being maintained by centrifugal force; oil seals 24 are situated in the bearing housings and the outer end of the crankcase is closed by a cover 25. A pulley or gear wheel 26 is secured to the crankshaft 21 to enable the drive to be taken therefrom and the crankshaft 21 has a dynamo 27 and a cooling fan 28 mounted on its outer end, the air from the latter being directed over the fins 2 by an open duct 29 connected at one end to the bolts 14 and at the other to the outer bearing-housing 5.
Patent GB-1491019-A (GB)
Title: Intermediates for use in preparation of cephalosporin derivatives
IPC: C07D277/36
Filed: 1974-12-20
Abstract: 1491019 Cephalosporin derivatives TAKEDA YAKUHIN KOGYO KK 20 Dec 1974 [25 Dec 1973 20 Feb 1974 15 April 1974 17 July 1974 13 Nov 1974] 01777/77 Divided out of 1491018 Heading C2C The novel compounds I (W is halo; Y is acetoxy or -SR 3 ; R 3  is a N- containing heterocyclic group) and esters or pharmaceutically acceptable salts thereof are prepared by reaction of a compound II with a compound WCH 2 COCH 2 COW.
Patent GB-1444881-A (GB)
Title: Tandem master cylinder with in-line check valves
IPC: B60T11/28
Filed: 1975-01-15
Abstract: 1444881 Master cylinders CATERPILLAR TRACTOR CO 15 Jan 1975 [21 Jan 1974] 1787/75 Heading F2F A tandem master cylinder assembly 12 for a dual brake system comprises a housing 14 with an elongated bore 36 and a pair of pistons 62, 64 axially reciprocably mounted in the bore and operative upon forward movement to pressurize fluid ahead of the pistons, first and second outlets 50, 60 and check valves 116, 118 coaxially disposed, for controlling flow through the outlets. Pressure chambers 68, 78 are connected to the rear and front brake cylinders respectively, the piston 64 forming with an adaptor 70 the chamber 78 which communicates with the front brakes via a chamber 80 in the adaptor 70. Check valve 116 is between chambers 78 and 80 and valve 118 is mounted in flow controlling relation between chamber 68 and outlet port 50. Flow from chambers 66, 78 is permitted through reed valve controlled ports 128 to apply pressure to the brakes.
Patent GB-453811-A (GB)
Title: Improvements in or relating to rotary kilns, furnaces, and driers
IPC: F27B7/40
Filed: 1936-01-20
Abstract: 453,811. Rotary furnaces. VICKERSARMSTRONGS, Ltd., Broadway, Westminster, and SKY, J. D., 85, Abbey Road, Barrow-in- Furness. Jan. 20, 1936, No. 1799. [Class 51 (ii)] In a rotary furnace 3, particularly for burning cement, having its discharge end enclosed in a substantially gas-tight casing 4 in which the air for combustion is preheated, the air is supplied by a fan 7 to a ring-shaped pipe 9 disposed within the chamber 4 and having a plurality of apertures or nozzles which deliver on to the outer surface of clinker-cooling cylinders 5 provided around the discharge end of the furnace. Escape of air around the furnace shell is prevented by a seal 6 while access to the casing 4 is provided by an airlock door 15 of which the inner member is constructed to enable an operator to observe the kiln without actually entering the chamber 4. The cooling cylinders 5 deliver into a shoot 10 in which is provided a rotary or other gastight discharge valve 11.
Patent GB-1410831-A (GB)
Title: Brush
IPC: A46B5/00
Filed: 1973-01-12
Abstract: 1410831 Hair brushes R LARDENOIS 12 Jan 1973 [13 Oct 1972] 1801/73 Heading A4K A hair brush for use in blow-waving hair comprises a cylindrical bristle support sleeve 6 of elastically deformable material supported on a handle 5. The sleeve 6 is coaxial with a shaft 7 extending from the handle and may be releasably connected to the end of the shaft remote from the handle by the engagement of the end of the shaft in a hole 12 formed in an end-wall 9 of the sleeve. The end of the sleeve 6 may be secured in a peripheral groove in a disc (18), Fig.5 (not shown) secured to the end of the shaft or a closed endwall (24), Fig.6 (not shown) on the sleeve may be adhesively secured to a disc 22 integral with the shaft.
Patent GB-554004-A (GB)
Title: Improvements in or relating to lead-through conductors for electric discharge tubes
IPC: C03C27/04
Filed: 1942-02-11
Abstract: 554,004. Glass/metal seals. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Feb. 11, 1942, No. 1842. Drawings to Specification. [Class 36] [Also in Groups XI and XXII] A gas-tight seal between a metal lead-in conductor and glass is formed by employing a wire with a central core of chrome-iron surrounded by a layer of silver between which may be interposed a layer of nickel or iron. The core body is covered with the intermediate layer by electrodeposition and has then applied to it the silver layer, the layers being bound to each other by subjecting the wire to heat so as to bring about superficial alloying therebetween.
Patent GB-825522-A (GB)
Title: Improvements in and relating to apparatus auxiliary to the removing of tinned bread from tins
Inventor: HOLLOWAY WILLIAM THOMAS
IPC: A21B3/18
Filed: 1955-01-21
Abstract: 825,522. Bread, extracting from tins. BAKER PERKINS Ltd. Jan. 23, 1956 [Jan. 21, 1955], No. 1869/55. Class 28 (1). [Also in Group XXX] The inverted loaves from a determining apparatus are received by a catcher device which is mounted for orbital movement about the same axis as or a parallel axis to that of a transfer device which is clear of the catcher device when the loaves are deposited thereon and is then moved relatively thereto until the loaves are contained between the devices where they remain as the devices rotate together until the loaves are supported right way up on the transfer device from which they are deposited on a conveyer or the like by abutment means as the transfer device moves on. As shown the loaves 16 are discharged at B into loaf-righting mechanism 17 consisting of transfer device 21 with a counter weight 27a secured by an arm 27 to a shaft 22 on which is rotatably mounted an arm 26 carrying catcher device 20. A spur wheel 24 on a driven shaft of the deturning machine has interrupted gear teeth and meshes with a spur wheel 23 on shaft 22 to drive the latter intermittently. A planet gear 29 pivoted on shaft 30 on arm 27 meshes with a toothed wheel 28, or alternatively with a quadrant, fixed to the machine framework adjacent arm 27 so that, as the arm 27 rotates, gear 29 is rotated and with it a crank 31 secured at one end to shaft 30 and connected at its other end by rod 32 to arm 26. Thus, as arm 27 rotates, arm 26 is moved so that devices 20, 21 come together and separate the loaves being deposited after inversion at a station D by an abutment on the catcher device which engages the loaves and, as the transfer devices moves on being maintained horizontal by a cam device, they are deposited on conveyer 34. In a modification, Fig. 6 (not shown), the drive is independent of the detinning machine but is synchronized therewith. Specifications 546,652, 672,990, [Group XXX], 681,605 and 825,523 are referred to.
Patent GB-303661-A (GB)
Title: Improvements in or relating to vacuum apparatus
IPC: F26B5/04
Filed: 1928-01-21
Abstract: 303,661. Ellis, G. B., (Merck, E., [Firm of]). Jan. 21, 1928. Small chambers; air, controlling pressure of.- Wax, fat, a fatty acid, &c. is introduced in a molten state between surfaces to be packed, in vacuum drying or distilling apparatus. The chamber a is mounted on a channel b carried by a fixed underframe c. Molten paraffin wax or like material is introduced into the channel and allowed to set and form the packing. A waterheated frame D carries trays or grates on its tubes d<1>, the trays containing material to be dried. The vapours evolved are cooled bv the jacket a<1> or by cooling pipes inside or outside the chamber, which prevent the melting of the packing. A receiver g for the condensed liquid is interposed in the vacuum tube which is led from the bottom of the chamber. Reference has been directed by the Comptroller to Specifications 105,647; and 146,127, [Class 1 (i), Chemical processes &c.].
Patent GB-104337-A (GB)
IPC: F01L1/14
Filed: 1917-02-12
Abstract: 104,337. Morin, A. Feb. 11, 1916, [Conrention date]. Actuating - mechanism. - A beat valve a, which is shown applied to a fluid-pressure engine, is actuated by an overhead cam which engages a piston f surrounding the upper portion of the valve stem. The valve stem is engaged by the inner face of the piston.
Patent GB-770152-A (GB)
Title: Improvements in or relating to cathode-ray apparatus
IPC: G09G1/22
Filed: 1953-01-26
Abstract: 770,152. Cathode-ray tubes. GENERAL DYNAMICS CORPORATION. Jan. 26, 1953 [July 1, 1952; July 12, 1952], No. 2166/53. Class 39(1). [Also in Group XL(c)] A cathode-ray tube for directly displaying letters or characters comprises a solid member 14, Fig. 1, provided with linear arranged openings shaped like the letters or characters, e.g. as in Fig. 2 and the beam is directed through a selected opening and to a selected location on the screen 12 by sets of deflection plates 16, 18 and 20, 22. In another embodiment both sets of plates precede the member 14. An additional set of plates may be provided to direct the beam normally to the member 14. The member 14 is supported by a cylinder 24 which may be of conductive material and serve also to shield the beam. The plates 20, 22 may be replaced by an electromagnetic system comprising a pair of horizontal deflection coils 74, 76, Fig. 6, lying at right angles to one another, and a similar pair of vertical deflection coils 78, 80. The plates 16, 18 may also be replaced by an electromagnetic system. In a P.P.I. system (see Group XL(c)) the beam is swept radially across the screen by a rotatable coil assembly, which may be similar to that of Fig. 6. The member 14, Fig. 1, may be of glass, or of conductive material and tied to a particular potential. Specification 770,151 is referred to.