baber/WOPTO huggingface dataset:
Patent GB-327714-A (GB)
Title: Improvements in or relating to the manufacture of benzyl cellulose
IPC: C08B11/16
Filed: 1928-10-03
Abstract: 327,714. Imperial Chemical Industries, Ltd., and Traill, D. Oct. 3, 1928. Right to Potent relinquished. Benzyl cellulose.-An alkali-insoluble benzyl celluose is prepared by a process involving the followings steps : (1) treatment of the cellulose with a caustic soda solution of 18-20 per cent strength; (2) pressing the resulting soda cellulose until it is 2.5 to 4 times the original weight of the original cellulose; (3) maturing it at a temperature of 22-35‹ C.; (4) adding 50-100 parts by weight of solid caustic soda per 100 parts by weight of cellulose, and finally benzylating. In examples, cellulose is treated in accordance with the above conditions, benzyl chloride being added in stages in the final step. The product is freed from bye-products and excess benzyl chloride by washing with alcohol, ether, and water. The working up of the benzyl cellulose may be effected in the presence of the following plasticizers : triphenyl phosphate, tricresyl phosphate, dibutylphthalate, p-toluenesulphanilide, benzylbenzoate, benzylabietate, zinc butylphthalate, xylenesulphonamide, phenylurethane, diethyldiphenylurea. amyltartrate, monochlorhydrin, triacetin, resorcinol diacetate, glyceroltribenzoate, glyceroldicresylether, tolylcarbonate, phenyloxamic ester or camphor. The benzylation may be effected in the presence of diluents such as benzene and oxidation or reducing agents may be added during the maturing of the soda cellulose. The product is suitable for the preparation of brushing and spraying lacquers, varnishes, enamels, wood finishes, leather cloth finishes, cinematograph and other films, splinterless glass, artificial silk, insulators, gramophone records or celluloid. Specification 177,809 is referred to.
Patent GB-447595-A (GB)
Title: Improvements in nut-locks for shears, scissors and like oscillatory crossed members
IPC: B26B13/28
Filed: 1935-10-15
Abstract: 447,595. Locking nuts; pivots. FINDLAY, R., c /o Findlay Bros., Ltd., Spring- hill Nurseries, Baillieston, Lanarkshire. Oct. 15, 1935, No. 28404. [Classes 65 (ii) and 89 (i)] In shears, scissors, and like oscillatory crossed members held together by a bolt and nut, the nut is locked by a washer frictionally engaging its bearing face and having a tab or projection loosely interlocked with the cross member remote from the nut. The blades 4, 5 are held together by a nut 7 on a bolt 6 non-rotatably mounted in the blade 5 ; a washer 13 is pressed into frictional engagement with the bearing face of the nut 7 by a spring washer 12 and the tab 14 carries a pin 15 fitting a hole 16 in the blade 5.
Patent GB-1101096-A (GB)
Title: Improvements in or relating to electro-mechanical transducers
IPC: H04R23/00
Filed: 1965-07-06
Abstract: 1,101,096. PN junction electromechanical tranducers. SIEMENS A.G. 6 July, 1965 [7 July, 1964], No. 28486/65. Heading HlK. [Also in Divisions G1 and H4] An electromechanical transducer comprises a semi-conductor monocrystal comprising at least one hard PN junction reverse biased to the region of breakdown and means for applying stress to the junction. The stress is preferably a tensile or compressive stress applied perpendicular to the plane of the junction. To obtain maximum variation of breakdown voltage for a given change of stress the junction is disposed in a 111 plane in germanium or in a 100 plane in silicon. When used in an acoustic transducer the junction is biased so as to be at breakdown under the maximum tensile stress expected, and when operated as a pressure sensitive switch the junction is biased to the point of breakdown at zero stress. By a hard junction is meant one exhibiting a sharp breakdown characteristic
Patent GB-921033-A (GB)
IPC: C11B7/00
Filed: 1959-08-20
Abstract: Tallow, palm oil and lard are selectively hydrogenated to an extent sufficient to convert polyunsaturated constituents to monounsaturated without affecting the original monounsaturates, dissolving the hydrogenated fat in a solvent and fractionating the solution by holding the solution at up to three successively lower temperature levels, preferably in the range 20 DEG  to 30 DEG C. to obtain in turn fractions consisting of (a) trisaturated glycerides having an iodine value below 20 and M.P. above 50 DEG C., (b) di- and mono-saturated glycerides, and (c) mono-saturated and tri-unsaturated glycerides having an iodine value above 58 and a cloud point below 10 DEG C.; fraction (b) consists of all the fatty material other than fractions (a) and (c), and where three fractionating temperature levels are used, consists of a mixture of the material obtained at the lower two levels.  The hydrogenation is suitably performed at 190 DEG -200 DEG C. at atmospheric pressure in the presence of a catalyst comprising the mixed oxides of copper and chromium or nickel supported on kieselguhr. Particularly suitable solvents are 1:2-dichloroethane and a mixture of 90% acetone and 10% benzene by weight.
Patent GB-831251-A (GB)
Title: Improvements relating to processes for refining phosphorus-containing pig iron
IPC: C21C5/28
Filed: 1957-09-10
Abstract: 831,251. Refining iron. PHOENIXRHEINROHR AKTIENGESELLSCHAFT VEREINIGTE HUTTON-UND ROHRENWERKE. Sept. 10, 1957 [March 12, 1957], No. 28543/57. Class 72 A process for refining phosphorus-containing pig iron in a basic line converter, is characterized in that a charge of pig iron with added lime is bottom blown in a first stage with the converter in an upright position until part of its carbon content is burnt and a slag prepared, the converter being then rotated until the metal and slag are clear of the tuyeres and, in a second stage, oxygen blown on to the surface of the charge until the phosphorus content is reduced to less than 0.1%, the converter being then turned back to the upright position in which, in a third stage, the charge is bottom blown until the desired carbon content is reached. After the third stage, the slag may be changed and this followed by further stages of blowing on to the surface in the tilted position and from the bottom in the vertical position. In an example, pig iron with 3.6% carbon and 1.75% phosphorus with the usual contents of manganese, silicon and sulphur was blown with oxygen enriched air according to the first stage of the invention until the carbon content reached 0.7% after 7¢ minutes. Blowing for 15 minutes with an oxygen lance in the second stage reduced the phosphorus content from 1.4% to 0.07% while the carbon content was reduced to 0.3%. In the third stage the charge was bottom blown for ¢ minute and the carbon content reduced to 0.15% and phosphorus to 0.04%. After forming a new slag and blowing again in the tilted position the carbon content was reduced to 0.1% and the phosphorus content to 0.02%.
Patent GB-965992-A (GB)
Title: Jet-deflecting device
Inventor: MOREL MAX ANDRE JACQUES
IPC: F02K1/64
Filed: 1962-07-25
Abstract: 965,992. Deflecting propulsion jets. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. July 25, 1962 [Aug. 1, 1961], No. 28626/62. Addition to 925,010. Heading B7G. [Also in Division F1] In a gas turbine engine, cold air from fan V driven by turbine T, normally issues rearwardly from an annular duct 9, but on movement of a fairing 7 and vanes 1, 2 and on inflation of an annular body 17, 18 the cold air flow is deflected. The body 17, 18 is clamped between an annular cup 16 and a wall 11 and is inflated from the low pressure compressor of the gas turbine engine. The speed of inflation can be regulated at will, to vary the progressive action of the braking effect produced by the deflected air.
Patent GB-1260881-A (GB)
Title: Substituted propionaldehyde o-(n-phenylcarbamoyl)-oximes and herbicides containing them
IPC: A01N47/24
Filed: 1969-06-06
Abstract: .1,260,881. Substituted propionaldehyde-0- phenylcarbamoyloximes. BADISCHE ANILIN- & SODA-FABRIK A.G. 6 June, 1969 [8 June, 1968], No. 28657/69. Heading C2C.  Substituted propionaldehyde-0(N-phenyl carbamoyl)oximes of the general formula  wherein AS denotes. the phenyl sulphonyl radical or S denotes sulphur and A denotes an aliphatic, cycloaliphatic or aromatic acyl radical, any of these radicals bearing, if desired, one or more substituents selected from the group consisting of fluorine, chlorine, bromine, methoxy and ethoxy, the cycloaliphatic and aromatic radicals further bearing, if desired, one or more substituents selected from the group consisting of methyl, ethyl, propyl isopropyl and tert-butyl and the aromatic radicals further bearing, if desired, one or more substituents selected from the group consisting of the nitro and trifluoromethyl radicals, A further denotes a methoxythiocarbonyl, ethoxythiocarbonyl, n-propoxythiocarbonyl, or the phenoxythiocarbonyl radical or a radical having the formula R and R<SP>1</SP> being identical or different and each denoting hydrogen or the methyl, ethyl, propyl, allyl, methoxyethyl, cyanoethyl or phenyl radical, and R and R<SP>1</SP>, together with the nitrogen atom whose substituents they are, further denoting a pyrrolidine, piperidine, morpholine or thiomorpholine radical, X denotes fluorine, chlorine bromine or the nitro, methyl, ethyl, methoxy, ethoxy, mesyl, carbalkoxy, dialkylamidosulfonyl or trifluoromethyl radical, and n denotes one of the integers 0, 1, 2 and 3. Compound claimed per se is: 2-methyl-2-(acetylthio) - propionaldehyde. - 0 - (phenylcarbamoyl)-oxime, are prepared by reacting a 2- methyl-2-(acylthio)-propionaldoxime with a corresponding substituted isocyanate. In an example 2-methyl-2-(benzoylthio)-propionaldehyde-0-(3,4-dichloropenylcarbamoyl)-oxime is prepared by reacting 2-methyl-2-(benzoylthio)- propionaldehyde oxime with 3,4-dichlorophenylisocyanate. The oxime starting material is prepared by reacting thioacetic acid with the chloronitroso compound obtained from isobutylene and nitrosyl chloride. The compounds are used as active ingredient in herbicidal compositions.
Patent GB-1067229-A (GB)
Title: Motor, pump or compressor with a piston rotatable within a housing
IPC: F02B53/00
Filed: 1964-07-10
Abstract: 1,067,229. Rotary-piston machines. C. DOYER. July 10, 1964 [July 15, 1963], No. 28680/64. Heading F1F. A rotary-piston motor, pump or compressor, comprises a housing having end-plates 1, 2 Fig. 2, and an intermediate plate 3 whose inner periphery is in the shape of an equilateral triangle having outwardly convexed sides (5), (6), (7), Fig. 1 (not shown) and rounded corners (8), (9), (10) and an oval piston (11) whose long sides (12), (13) correspond to the sides of the triangle and short sides the rounded corners. A pinion 24 fixed on a stub shaft 27 eccentrically in the piston 11 by means of a bush 25 integral with the shaft 27 meshes with a ring gear 29 in the end-plate 2 and a pinion 30 concentric with the pinion 24 mounted on an eccentric extension of the driving or driven shaft 31 meshes with a ring gear 35 in the piston. The p.c.d's. of the pinions 24, 30 are in the ratio of 9:8, of the ring gear 29 with respect to the pinion 24, 3:2 and of the ring gear 35 with respect to the pinion 30, 2:1. The axis 26 of the piston is within the pitch circle of the pinion 24 and on the pitch circle of the pinion 30 so that on rotation, the piston described a reduced hypocycloid. The ends 16, 17 of the piston are fitted with sealing means, sealing by engaging the inner periphery of the housing part 3. Operating as an I.C. engine, the housing includes an inlet 21 for the admission of a fuel-air mixture an outlet opening 22 fitted with a valve 23 operable to discharge the gases of combustion and a spark-plug 20 which ignites the fuel air mixture after compression in a combustion chamber constituted by a piston recess, one on each long side of the piston. Openings 38, 39 fitted with spring-loaded valves may be provided, the valve 40 opening on the occurence of suction and the valve 41 to prevent excess pressure behind the piston during the compression and expansion strokes respectively. Lubricating ducts are fitted in the piston for its lubrication and cooling ducts both in the piston and housing and extra cooling may be effected by air through the openings 38, 39. A flywheel 34 is fixed to the shaft 31 and a counter-balance weight 36 to the shaft 27. In a modified construction, an intermediate gear wheel has internal teeth (29'), Fig. 3 (not shown) engaging the pinion (24) and external teeth (24') engaging internal teeth (29) on a ring secured to the end-plate (2).
Patent GB-288075-A (GB)
Abstract: 288,075. Rinau, W. July 28, 1927. Bakers' ovens. - Burner pipes 3 are arranged at the longitudinal median line of the roof of the oven, and the waste gas outlets are situated so that the heating gases are directed towards the sides of the baking- chamber. As shown in Fig. 2, the outlets 4 are at the upper corners of the baking. chamber, and the burner consists of an air pipe 5 arranged between a pair of gas pipes 3. In a modification the oven has additional outlets beneath a perforated drawplate, and, in a further form, Fig. 5, in which the baking-chamber is formed by an inner casing 16, the heating gases pass to the outer flue through apertures 17. and thence to the waste gas flue 13. The burner may be placed outside the casing 16, and, in this case the baking-chamber may be isolated from the heating-flue. If the flue beneath the floor is omitted, waste gas outlets are situated at the lower corners of the heating-space. In another modification, Fig. 7 a false roof 22 is fitted to the baking-chamber, and the burner 3 may be situated either as shown, or in the space above the false roof. The invention may be applied to decker ovens.
Patent GB-983264-A (GB)
Title: Improvements in thrust plate mounting assembly and the like
IPC: G05G1/00
Filed: 1962-07-26
Abstract: 983,264. Securing elements to shafts. SOC. RATEAU. July 26, 1962 [Sept. 5, 1961], No. 28826/62. Heading F2U. An element 1 having a plane surface 1a, such as a thrust plate, is supported by three supports 4 of very small area on a second element 2 having an axis X-X which is to be perpendicular or at a predetermined angle to the surface la. The thrust plate 1 may be secured against the small areas 4 by a nut 5 and the small areas 4 are trued to provide accurate positioning of the surface 1a. The surface 1b may be as machined.
Patent GB-1234944-A (GB)
Title: Methods and apparatus for processing yarn
IPC: D01H1/42
Filed: 1968-06-18
Abstract: 1,234,944. Ring spinning. LEESONA CORP. 18 June, 1968 [26 July, 1967], No. 28880/68. Heading D1D. In a ring spinning machine arcuate balloon limiters 70 extend over the full length of the traverse zone of the ring. Means are provided to thread anew end through the traveller 38 while the ring lies within the limiter 70. A servicing tender 50 as described in Specification 1,189,521 is provided to move to a station when a bobbin is full of the yarn running to the spindle is absent. When an empty bobbin has been donned and/or the supply of yarn reestablished a pusher 20 on the tender is actuated and moves towards the spindle, engages an anvil 76 on one edge of the gap between the adjoining ends of the limiter and displaces the edge to create a wider gap. In addition a vertically movable slide 94 carrying a bar 82 for engaging against an extension of the spindle rail and a movable fork 54 for threading the yarn on the traveller is moved downwardly from an inactive upper position until bar 82 engages the extension of the ring rail. Thereafter slide 84 moves with the ring rail. In this period fork 54 is operated to pass through the enlarged gap in the balloon limiter and thread the yarn to the traveller. Work 54 is then retracted, slide 94 moved to its upper inactive position and pusher 80 is retracted, the operations of the tender then being complete. As shown in Fig. 5 the inside of the limiter may be corrugated to reduce friction. The rings 40 are connected to the ring rail 22 by members 78 which pass through the vertical gay in the limiter 70. The limiter 70 may be in two hinged parts spring biassed into a closed position so that the gap may be more easily widened by the pusher 80. Alternatively it may be in two parts one of which is rotatable about the spindle axis and spring biassed towards a closed position again so that it will be easily displaced by pusher 80. In Figs. 10-13 not shown, when the tender (50) is located at a spindle position the ring is disconnected from the reciprocating members and lowered to a position below the limiter where the rethreading of the traveller is performed. In such an arrangement the traveller threading fork 54 does not need to be vertically movable. In Fig. 15 the doffing flange 200 which has an inflatable ring 204 to engage the top of a bobbin and remove it, is also provided with an inflatable ring 200 by which the top of the limiter 70 is grasped and removed, thus leaving the ring and traveller exposed for rethreading.
Patent GB-662315-A (GB)
Title: Apparatus for drying hair
IPC: A45D20/18
Filed: 1949-11-10
Abstract: 662,315. Hair-drying apparatus. COOK, C. A. (Apa Prospekt Akt-Ges.) Nov. 10, 1949, No. 28885/49. Class 81 (ii). Hair-drying apparatus comprises a cap 1 of material impermeable to air such as a rubberised fabric provided with a hot-air inlet tube 2 and outlet holes 6 arranged around the base of the cap which is fitted with an elastic band 8. The tubing 2 is also of material impermeable to air and serves to tangentially introduce the air into the cap via the extension 3. A wire helix 4 keeps the air flow path through tubing 2 clear. Outlets 6 may be replaced by material which is pervious to air.
Patent GB-1254956-A (GB)
Title: Motor compressor
IPC: F25B31/02
Filed: 1969-06-09
Abstract: 1,254,956. Lubricating. DANFOSS A.S. 9 June, 1969 [19 June, 1968], No. 28976/69. Heading F2A. [Also in Divisions F1 and H2] A motor-compressor comprises a vertical crank-shaft 6, an axial thrust bearing disc 15 fixed to the shaft's upper end, and a centrifuging disc 16 fixed above the bearing disc 15 so that oil delivered to the top of the shaft through lubricating passages (24), 25, (26) is flung on to an enclosing housing (not shown). The centrifuging disc 16 has an upwardly inclined portion over part of its periphery. This portion has a lower edge 33 situated below the lower surface of the bearing disc 15 to receive oil leaving the lower surface and convey it to the upper rim 32 where it is flung off. To balance the crank portion 7 and reciprocating parts, balance weights 35 are secured to the underside of a radially extending arcuate portion 34 of the bearing disc and the short-circuit ring 39 of the rotor is provided with a thickened portion 40. The shaft 5 is rotatable in a motor carrier 11 and in an insert 38 pressed into the carrier 11 and defining silencing chambers therewith.
Patent GB-798324-A (GB)
Title: Improved methods of burning solid fuels
IPC: F24B13/02
Filed: 1954-10-08
Abstract: 798,324. Solid fuel combustion apparatus. GUMZ, W. Oct. 8, 1954 [Oct. 9, 1953], No. 29043/54. Class 51 (1). The combustion of a solid fuel which is begun on an ante-grate is completed in a vertical shaft furnace by the horizontal passage therethrough of a mixture of air and the combustion gases from the anti-grate. The furnace shown comprises two inclined ante-grates 1 leading to a combustion shaft 2. During furnace operation, a small quantity of air is passed once through the fuel on each grate 1 and the resulting gases are drawn from the space 11 above the grates to a flue 5 in which they are mixed with the major part of the combustion air prior to passage through the shaft in the direction 9. The inner walls of the flue 5 may be lined with finned-tubes in which, when the furnace is associated with a boiler, the boiler water may be heated. Water may be sprayed into the flue 5 through a pipe 10. In a further embodiment, a pair of spaced ante-grates discharge into a horizontal passage through which the fuel is conveyed to the shaft, the gases from the grates being drawn into a vertical flue disposed therebetween.
Patent GB-815748-A (GB)
Title: A process of winning elemental phosphorus
IPC: C01B25/02
Filed: 1955-10-12
Abstract: <PICT:0815748/III/1> Phosphorus is produced from oxygenated ores thereof by forming a coke throughout which the ore is disseminated, as particles in a supporting carbon structure, which coke contains sufficient excess carbon over that consumed in reduction to hold residual ore particles apart and prevent agglomeration, heating the coke, until the majority of the phosphorus is liberated, to form gaseous carbon monoxide and phosphorus by reduction without contact with carbon dioxide and water vapour, separating phosphorus from the withdrawn gaseous products, and removing residual carbon and ore in unsintered solid form.  The phosphate rock, the majority of which passes 100 mesh, is mixed with a coke forming material, e.g. tar, pitch, or asphalt, or mixtures thereof, preferably having a characterization factor 1 (coking value X C : H ratio) of at least 50.  To save coke forming material, the mixture may include anthracite, bituminous coal, or coke breeze, and the mixture may be briquetted.  Alternatively, bituminous coal and phosphate rock may be ground together in a state of extreme fineness for several hours and briquetted at 10 tons per square inch, when the coal flows like pitch.  The mixture is coked in a coke oven, or briquettes are coked in a continuous operating retort with top feed and bottom discharge, at between 700 DEG  and 800 DEG  C.  Silica of the same size as the ore may be incorporated in the mixture before coking in mol. ratio to CaO 1 : 1.  Massive coke from a coke oven must be subdivided to size 1 inch to 3 inches before heating to liberate phosphorus; and heating is up to 1260 DEG  C., e.g. 1100-1260 DEG  C., with silica or up to 1500 DEG  C. without silica.  The coke charge is fed by means of poppets 22, 25 without gas escape, from bin 21, through bin 24, to refractory-walled heating zone 2, which is heated by burners 5, 12, discharging into ovens 6, 13 and feeding flues 7, 8, 9, 10, 14, 15, 16, 17 before the combustion gases pass to stacks 11, 18. The gases are withdrawn through 31 to condensers, while unsintered residue is withdrawn through revolving internally cooled grate bars 33 into space 35, and thence by worm conveyer 36.  The residue obtained in absence of silica may be used as lime after the carbon has been burnt off.  An inert gas, e.g. CO, H2 or N2 may be passed in through 37 to give a slight positive pressure and prevent phosphorus condensation in 2.  In an alternative apparatus (Fig. 3, not shown) the heating is by electrodes.  Specification 486,930 is referred to.