baber/WOPTO huggingface dataset:
Patent GB-378730-A (GB)
Title: Improvements in or relating to valves of the rising stem type
Filed: 1931-11-28
Abstract: 378,730. Fluid-actuated valves. HALL, C., 63, Calle de Amberes, Mexico City. Nov. 28, 1931, No. 33055. Convention date, Oct. 14. [Class 135.] A fitting for attachment to manually-actuated valves of the " rising stem " type to enable them to be closed from a distance comprises a member associated with a pair of actuating pistons and adapted tc co-operate with the outer end of the valve spindle after the normal actuating mechanism has been removed. The pistons 17 work in cylinders 16 joined by a bridge 28 and mounted on a baseplate 33 secured by bolts to lugs 14 from which the yoke supporting the existing hand-wheel has been removed. The piston-rods 19 are joined by a bridge 22 to which a socket 15 engaging the end of the valve spindle 4 is secured by a nut 30. The valve is opened by means of a twopart hand-wheel 22 clamped about the screwed spindle 4 and bearing against a two-part collar 23 resting on the valve casing. After the removal of the hand-wheel the valve may be closed by admitting fluid pressure from a pump through a conduit 18. The fluid pressure is released, to permit manual opening, by valves 21.
Patent GB-1436202-A (GB)
Title: Method for preparing poly-n-alkenylamines
IPC: C08F26/00
Filed: 1973-07-11
Abstract: 1436202 Poly-N-alkenylamine preparation TOM ORDENA TRUDOV KRAS ZNAME POLITEKHNICHE INST IM SM KIROVA 11 July 1973 33099/73 Heading C3P [Also in Division C2] Poly-N-alkenylamines of the formula are obtained by reacting an aldehyde of the formula where R and R<SP>1</SP> are hydrogen, methyl or ethyl, with a secondary aromatic or heterocyclic amine of the formula in the presence of an acidic catalyst and an organic solvent. The reaction proceeds via addition of the amine to the alpha carbon of the aldehyde, dehydration to the unsaturated amine and polymerization thereof. The aldehyde may be in the form of an oligomer thereof which yields the aldehyde itself under the acidic reaction conditions. Both mineral and Lewis acids are suitable as catalysts. The reaction may be accelerated by the addition of an aliphatic alcohol or a carboxylic acid or anhydride thereof. The polymers have molecular weights of 600 to 3000 and are photosensitive. In examples, poly-N-vinyl carbazcle, poly-N- butenyl carbazole, poly-N-vinyl diphenylamine, poly - N - isobutenyldiphenylamine, poly - N- propenyldiphenylamine, poly-N-vinyl thiazine, poly - N - vinyl phenoxazine, poly - N - vinyl- 3-chlorocarbazole, and poly-N-vinyl-3,6-dichlorocarbazole of the above low molecular weights are obtained using appropriate aldehyde/amine mixtures such as paraldehyde/ carbazole, butyraldehyde/carbazole, acetaldehyde/diphenylamine, acetaldehyde/phenthiazine, or paraldehyde/3,6-dichlorocarbazole using solvents such as toluene, benzene or acetone, catalysts such as hydrochloric/perchloric mixture, hydrogen chloride, sulphuric and boron trifluoride etherate, and additives such as ethyl or isopropyl alcohol or acetic acid.
Patent GB-623894-A (GB)
Title: Kinematograph cameras
IPC: G03B19/18
Filed: 1945-10-26
Abstract: 623,894. Kinematograph cameras. COUTANT, A. C., and MATHOT, J. A. Oct. 26, 1945, No. 33103/47. Convention date, Jan. 8, 1945. Divided out of 605,890. [Class 97 (i)] The front part of the camera carries the lens and has a rear wall forming the front wall of the gate, the rear portion is a film magazine, the front wall of which forms the rear wall of the gate and which is attachable in a lighttight manner to the front part. In the form shown, flangeless spools are used with their axes separated by less than the diameter of the fully wound film coil. The film passing to and from the spools is wound by a sprocket 24 and guided by rollers 27, 38, being held on the sprocket by rollers 25, 26, 39, 40. The film passes through curved channels to the outside of the front magazine wall, part 33 of which is spring urged to form the pressure plate of the film gate. The film is located by lugs 31, 35 engaging one edge of the film and the laterally spring-urged member 34 which has a portion engaging the other edge of the film. The magazine slides on to the camera on dovetail guides and a rim 42, surrounding the front wall, makes a light-tight joint with the camera wall. A spring-urged peg 32 engages one film perforation when the magazine is detached, but is withdrawn when the magazine is in place. This locates the film to ensure engagement of a perforation by the camera feed claw. Gearing on the sprocket spindle and take-up spool spindle engages the camera mechanism. It may be locked by a spring pawl which is released when the magazine is in place.
Patent GB-1159931-A (GB)
Title: Cryogenic Tanker
IPC: B63B25/16
Filed: 1966-07-22
Abstract: 1,159,931. Carrying liquefied gases. ESSO RESEARCH & ENG. CO. 22 July, 1966 [2 Aug., 1965], No. 33132/66. Headings B7A, B7M and B7S. A double hull tanker 10 for carrying liquefied gases has thermally insulated cargo tanks 33 ... 38 each of which such as tank 37, is enveloped by two J-shaped wing ballast tanks such as 51, 60, two bottom ballast tanks 62, 63 and two transverse coffer-dam ballast tanks 31, 32. Some of the coffer-dam ballast tanks may include stabilizing flumes 66. A double hull tanker 10 for carrying liquefied gases has thermally insulated cargo tanks 33 ... 38 each of which such as tank 37, is enveloped by two J-shaped wing ballast tanks such as 51, 60, two bottom ballast tanks 62, 63 and two transverse coffer-dam ballast tanks 31, 32. Some of the coffer-dam ballast tanks may include stabilizing flumes 66.
Patent GB-410798-A (GB)
Title: Improvements in or relating to drying by heated gases
IPC: F26B17/00
Filed: 1932-11-23
Abstract: 410,798. Drying systems. CHEMICAL & METALLURGICAL CORPORATION, Ltd., Astmoor Works, and CRABTREE, J. W., Hollies, Halton Brook, both in Runcom, Cheshire. Nov. 23, 1932, No. 33169. [Class 34 (ii).] Material to be dried by means of hot gases is passed successively through a plurality of stages, in the last of which it is exposed to ingoing, warmed, unsaturated gases and in a prior stage or stages to the same gases again applied to it, but in hotter condition, and the ingoing gases are warmed by the latent heat of condensation of the outgoing, moisture-laden gases. In the apparatus shown, material from a hopper 20 passes through an aperture 22 into the upper compartment of the casing 11, and is agitated and conveyed outwards by rabbles 31. On falling through the apertures 32, the material forms heaps on the plates 33 so as to seal the apertures, portions of the heaps being periodically removed by sweepers 35. The material is then worked through the intermediate and lowest compartments in a similar manner, passing out at 40. Air for drying passes through the inlet 41, heat recuperator 42, and pipe 50 to the lowest compartment of the drier. Thence it passes through a heater 52, which may be supplied with hot furnace gases, the middle drying compartment, a further heater 58, the upper compartment, and then through a cyclone separator to the recuperator 42. The fan 64 draws the air through the whole apparatus, and may deliver it through a further cooler and back to the inlet 41.
Patent GB-1272062-A (GB)
Title: Improvements in or relating to closure member arrangements for windows, doors and the like
Inventor: ROBERTSHAW MICHAEL FIRTH
IPC: E06B3/02
Filed: 1968-01-30
Abstract: 1,272,062. Sealing windows &c., hinges. M. F. ROBERTSHAW. 30 April, 1969 [30 Jan., 1968; 13 Feb., 1968; 11 July, 1968], Nos. 4682/68, 6931/68 and 33239/68. Headings E1J and E2F.  A closure member, e.g. a frameless window pane 1, is hingedly mounted in an opening 4 having a sealing member 5 or 36 around its edges, and the window pane 1 or the opening 4 (as in Fig. 7, not shown) has around its edges a thin, flexible but incompressible capping strip 2 of metal or plastics for contact with a flexible sealing strip, as at 6 or 8, provided around the edges of the opening or window pane respectively, when the window is closed. The sealing strip may be a rubber tube 6 or a rubber strip 8 carried by an upstanding metal strip 7, and the window pane may have a further flexible sealing strip 3, which may be shaped to co-operate with a capping strip when the latter is provided on the opening. The thickness of the capping strip 2 is typically 0.005 inch. The window pane 1 is hingedly mounted by means of hinge strips 26, 29 having engaging hook-like flanges 27, 28 and secured along an edge of the pane 1 and an edge 30 of the opening respectively. The hinge strip 26 may be cut away at the corners at 26a to accommodate the ends of the capping strip 2 of the adjacent edges, and may be modified to receive double glazing (Fig. 9, not shown). The hinge strips are preferably of steel coated with plastics.
Patent GB-750194-A (GB)
Title: Isonicotinamides
IPC: C07D401/12
Filed: 1953-12-02
Abstract: The invention comprises compounds of the formula <FORM:0750194/IV(a)/1> wherein X is oxygen or sulphur and R2 and R3 are alike or different and are hydrogen or lower aliphatic alkyl radicals (containing one to eight carbon atoms).  Such compounds are obtained by reacting a compound of the formula <FORM:0750194/IV(a)/2> wherein R is halogen or an aliphatic alkoxy radical of one to eight carbon atoms inclusive with an N-amino-heterocyclic compound of the formula <FORM:0750194/IV(a)/3> or a salt thereof with hydrochloric acid in benzene, a lower aliphatic alcohol or a diluted lower aliphatic alcohol containing one to eight carbon atoms, at a temperature between 15 DEG  C. and the boiling temperature of the selected solvent, if desired in the presence of a sodium acetate buffer solution.  A slight excess, e.g. 1.05 to 1.5 mols., of the N-aminoheterocyclic compound per mol. of the isonicotinic acid ester or halide is employed.  In examples (1) 1-isonicotinamidohydantoin is prepared by reacting N-amino-hydantoin with isonicotinyl chloride; (2) ethyl isonicotinate and 1-amino-3,5-dimethyl hydantoin are reacted in an aqueous alcohol solution of sodium acetate to form 1-isonicotinamido - 3,5 - dimethylhydantoin; (3) isonicotinyl chloride and 1-amino-2-thiohydantoin are reacted together in benzene to form 1-isonicotinamido - 2 - thiohydantoin. Specification 711,756 is referred to.
Patent GB-832115-A (GB)
Title: Improvements in or relating to liquid dispensing apparatus
Inventor: SNELLING LEONARD CHARLES
IPC: B67D1/14
Filed: 1957-10-28
Abstract: 832,115. Delivering measured quantities of liquids. SNELLING (LONDON) Ltd., L. C. Oct. 28, 1958 [Oct. 28, 1957], No. 33524/57. Class 106(5) A free-piston dispenser for beer is connected at 7 to a pump or pressurized barrel and has a two-position plug valve 10 for directing the beer through passages 14 and 15 to one or other end of the transparent cylinder 2, the measured quantity of beer being delivered to a nozzle 19 past one or other of a pair of non-return valves 18. An air bleed valve in the inlet pipe comprises a floating ball 20 which is normally held by the beer against a seating 21 but drops away from the seating if sufficient air collects in the space 22. A lockable screw 5 adjusts the travel of the piston 6.
Patent GB-1125943-A (GB)
Title: Improvements in or relating to metal forming apparatus
Inventor: PHILLIPS CHRISTMAS
IPC: B21D7/028
Filed: 1964-08-17
Abstract: 1,125,943. Angular bending. REDMAN TOOLS HOLDINGS Ltd. 17 Nov., 1965 [17 Aug., 1964], No. 33620/64. Heading B3E. Metal forming apparatus comprises a former 10 and a pair of rollers 14 which are carried by a roller box 12 and are adapted to co-operate with the former 10 to shape therewith a metal bar carried on the former on relative transverse movement between the former and the roller box, the roller box being pivotally mounted on means 11 for urging it towards the former and there being means provided to maintain the roller box at a predetermined angle relative to said pressure means during forward movement of the roller box relative to the former. Relative movement between the roller box and the former to carry out the forming may be effected as described in Specification 784,950, to which reference is made. The means to maintain the roller box 12 at the predetermined angle during forward movement thereof may comprise an adjustably spring-urged ball, carried in a plug 20 in a bracket 18 projecting from the piston rod 11, engaging a detent in a bar 15 depending rearwardly from the roller box 12. Spring-urged pads or arcuate surfaces 31, on the bracket 18, engage the bar 15 to control movement thereof when the rollers engage the work and move over the former 10, the ball being moved out of its detent. After forming the roller box 12 is retracted and the bar 15 is engaged by a stop 29 to reposition the box 12. Instead of a ball and detent a friction device may be built in at the pivot between the friction rod 11 and a box 12. The former 10 may be so shaped that as the roller box 12 runs off the workpiece it takes up its predetermined angular position relative to the pressure means as the ball engages the detent.
Patent GB-809485-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
IPC: C07J1/00
Filed: 1956-11-05
Abstract: The invention comprises a compound selected from the group consisting of 17-oxygenated-4-androstene-3-one of the formula <FORM:0809485/IV (b)/1> wherein the lower alkyl group contains from 1-8 carbon atoms, R is hydrogen or methyl, R1 is <FORM:0809485/IV (b)/2> , <FORM:0809485/IV (b)/3> , in which the Ac is the acyl radical of an hydrocarbon carboxylic acid containing from 1-8 carbon atoms inclusive, <FORM:0809485/IV (b)/4> or a keto group and a process which comprises treating a [3-keto-androstan-2-yl] glyoxalate or a [3-keto-estrane-2-yl] glyoxalate with an alkyl halide in the presence of an alkali metal carbonate to obtain a glyoxalate of 2-alkyl-3-keto-estran-2-yl or 2-alkyl-3-keto-androstan-2-yl and decomposing the thus-produced glyoxalate-2-alkyl steroid to obtain the corresponding 2-alkyl-3-keto-androstane or respectively 2-alkyl-3-keto-estrane. The glyoxalates are obtained by oxalylation of a 17-oxygenated-3-keto-D 4-androstene with a lower alkyl oxalate, e.g. methyl or ethyl oxalate, in the presence of a condensation catalyst, e.g. sodium methoxide, sodium ethoxide, sodium isopropoxide, potassium t-butoxide, lithium methoxide, alkali metals, alkali metal hydrides, sodium amide and triphenylmethylsodium. Suitable starting steroids for the production of the glyoxalates are 4 - androstene - 3,17 - dione, testosterone, esters of testosterone, 19-nortestosterone, 17a -methyltestosterone, 19 - nor - 4 - androsten - 3,17 - dione and 17a  - methyl - 19 - nortestosterone.  The 2-alkoxyoxalyl group is removed from the 2-alkoxyoxalyl-2-alkyl steroid by adding water to the basic solution.  The 17-hydroxyl group may be oxidized to a 17-keto group with chromic acid in acetic acid solution.  Examples describe the production of 2-methyl-19-nortestosterone, 2,17 - dimethyltestosterone, 2 - methyltestosterone, 2,17 - dimethyl - 19 - nor - 4 - androstene - 3 - one, 2 - ethyl - 17b  - hydroxy-4 - estrene - 3 - one, 2 - n - propyl - 4 - androstene - 3,17 - dione, 2 - methyltestosterone - 17 - propionate, 2 - methyltestosteronebenzoate and other 17b -acylates, 2-methyl-4-androstene-3,17-dione, 2 - methyl - 19 - nor - 4 - androstene - 3,17 - dione.  Other products mentioned are 2-ethyl and 2-benzyl-17b -hydroxy-4-estrene-3-one, 2-propyl-, 2-isopropyl-, 2-benzyl-, and 2-hexyl-testosterone, 2-butyl-, 2-pentyl-, 2-hexyl-, 2-octyl- and 2-ethyl-17a -methyl-17b -hydroxy-4-androstene - 3 - one, 2 - ethyl-, 2 - propyl-, 2-hexyl- and 2-benzyl-4-androstene-3,17-dione, and 2-ethyl- and 2-propyl-19-nor-4-androstene-3,17-dione.ALSO:An injectable composition to promote protein anabolism and useful in the treatment of cachexias, comprises sodium citrate, sodium carboxymethylcellulose, polyvinylpyrrolidone, polysorbate, methyl paraben, propylparaben, 2-methyl-19-nortestosterone and water.
Patent GB-1512374-A (GB)
Title: Selfclosing anti-fire shutters
IPC: F16K17/38
Filed: 1974-07-31
Abstract: 1512374 Anti-fire shutter CONVYRON Ltd 23 May 1975 [31 July 1974] 33782/74 Heading ASA [Also in Division F2] In a self closing anti-fire shutter in which a plurality of slats 12 are hinged together and held in a stacked condition by a heat sensitive (e.g. fusible) retainer, the slats are spring loaded to extend into an operative position when the retainer is released by C shaped springs 8, each spring having end portions 11 with side tabs 13 which are bent to engage the slats. As shown in Fig. 3 the slats have interengaging hinge elements 17, 19 around which the springs fit. When the shutter is released, the leading slat 12" is guided by member 18 to engage a detent 20 to hold the shutter in the extended position.
Patent GB-322626-A (GB)
Title: Improvements in weighing scales or apparatus
IPC: G01G1/18
Filed: 1928-11-19
Abstract: 322,626. Fitzpatrick, H. D., (Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen). Nov. 19, 1928. Counter scales and the like; spring apparatus. -In a weighing-scale, the weighbeam and the indicating pointer have a common fixed fulcrum, and an upstanding leaf spring acting as a weight resistant is disposed adjacent to the fulcrum, one end of the spring being connected to the pointer and the other end being fixed to the indicator casing or other stationary part. The pointer 1 is formed integral with the beam, and a leaf spring 7 cranked outwardly at the middle portion is attached to lugs 4, 5 on the pointer and casing respectively. The leaf spring acts solely as a weighing resistant and controls the indications of the pointer when this is moved by the weighing mechanism. Check link mechanism 15 is provided for guiding the scale pans. Means may be provided to compensate for changes in the spring due to variations in temperature. Beams. - The weighbeam 2 is provided with upwardly-projecting parts carrying knife-edges so that the pivoting and fulcrum points of the scale pans and weighbeam are above the level of the main part of the beam. Scale-pans and the like.-The scale pans are formed with depending integral sleeves 16, 17 sidable vertically on hollow bosses 18, 19 on the casing.
Patent GB-864468-A (GB)
Title: Process for the production of polymers and copolymers of acrylonitrile
Inventor: HUNYAR ANDREAS
IPC: C08F20/44
Filed: 1958-10-22
Abstract: Polyacrylonitrile and copolymers containing at least 85% by weight of acrylonitrile are obtained by polymerizing a mixture containing by weight 20 to 30% monomers, 70 to 80% dimethyl formamide, about 1% sodium p-toluene sulphinate and 0.5 to 2% of a concentrated oxy acid, particularly sulphuric acid, into an immediately spinnable solution at 30 to 50 DEG C. for 20 to 60 hours. Other monomers which may be utilized include vinyl acetate and styrene.
Patent GB-895755-A (GB)
Title: Fluid control valves
Inventor: MARTIN ERIC ARTHUR
IPC: F16K1/54
Filed: 1959-10-07
Abstract: 895,755. Valves. LUCAS (INDUSTRIES) Ltd., JOSEPH. Sept. 30, 1960 [Oct. 7, 1959], No. 33950/59. Class 135. A fluid-control valve particularly for use in servomotor systems and permitting, by a relatively small movement of a valve member, a relatively large flow through the valve, comprises a body 4 in one end of which is formed a recess 6, a tubular part 7 disposed within this recess so as to leave an annular outlet 9 between the outer end of the part 7 and the recessed end of the body 4 which ends are co-terminous, an inlet passage 12 in the body in communication with the annular outlet 9, and an outlet passage 13 in the body in communication with the interior of the tubular part 7, so that when the valve member 10 is moved away from the co-terminous ends fluid from the inlet 12 can escape radially outwards from the annular outlet 9 and radially inwards to the interior of the tube 7 whence it escapes through the outlet passage 13. The body 4 is mounted in a second body 1 providing an inlet chamber 2 which is sealed at opposite ends by rings 5, 16 respectively on the body 4 and on a flange 15 carried on a stem from this body. The stem is extended through and adjustably engages a cap 17.
Patent GB-196024-A (GB)
Title: A new or improved method of purifying and preserving oysters and other molluscs in sea-water, and apparatus therefor
IPC: A22C29/04
Filed: 1921-12-16
Abstract: 196,024. Gineste, C. L. A. Dec. 16,1921. Oyster and fish culture; fish tanks and aquaria. -Oysters and other molluscs are purified and preserved in sea-water in a tank having a sedimentation zone 0 comprising a layer of sand, a neutral zone B of medium aeration and an upper zone A traversed by a large number of small air bubbles. The oysters are stored in boxes d in the upper zone A. Air is supplied through a filter j and a cooler i or a heater to a pipe h to which are fitted numerous jets formed by pieces of rattan.
Patent GB-366609-A (GB)
Title: Improvements in or relating to telephone sets
IPC: H04M1/02
Filed: 1930-11-11
Abstract: 366,609. Sets. AUTOMATIC TELEPHONE MANUFACTURING CO., Ltd., Strowger Works, SMITH, S. R., Rock House, Old Swan, and ELLIS, J. H., 71, Broad Square, West Derby, all in Liverpool. Nov. 11, 1930, No. 33981. [Class 40 (iv).] In a telephone set of the cradle type the switch springs 10 are arranged to extend substantially across the entire width of the casing A and are operated by a vertically guided plunger 6 having a flat broad head or fin 7, which completely bridges the gap between the limbs B of one of the cradle arms and works in a slot in this arm. At its lower end the plunger 6 is fitted with insulated rollers for pressing apart the springs 10, while a transverse blade spring 12 engaging under shoulders 14 of the head 7 raises the plunger when the hand-set is removed. The entire switch and induction coil 40 are mounted on a substantially vertical bracket 3 and can be readily inspected by removal of a baseplate 30 and an horizontal platform 15 that carries the ringer 16 and condenser 17. The bracket 3 is secured in position by fitting at its upper end into slotted lugs 5 on the interior of the casing A and at its lower end by screws 4, while the platform 15 is fixed by passing tongues 18 on its rear edge into slots in the bracket 3 and at its front edge by a pivoted catch or hook co-operating with a nut and screw mounted on the casing. Along its lower edge the bracket 3 is fitted with two groups of terminals 21 with interposed insulating strips 22, while a separate group of terminals for the ringer connections may be disposed on the platform 15. When the platform 15, ringer 16, and condenser 17 are removed, the instrument may be used with a separate bell-box. The casing A is preferably formed of synthetic resin or like material and moulded in one piece as described in Specification 341,048.
Patent GB-1098636-A (GB)
Title: Catalystic process for making polyesters
IPC: C08G63/86
Filed: 1965-08-10
Abstract: In the manufacture of polyesters by reacting a dicarboxylic acid (or ester-forming derivative thereof) with a glycol of formula HO-(CH2)n-OH, where n = 2 to 10, and then polycondensing the resulting product, there is used as a polycondensation catalyst an antimonyl derivative of a polyhydric phenol containing an orthodihydroxy grouping.  Many aliphatic and aromatic dicarboxylic acids are mentioned.  Specified catalysts are those made by reacting antimony trichloride with pyrogallol, catechol, p-phenyl catechol, 4:6-dimethyl catechol, 4-methyl catechol, 4-methyl-6-butyl catechol, 4-tert. butyl catechol, 1:2-dihydroxy naphthalene, 4-chlorocatechol and gallic acid. Polycondensation may also be effected in the presence of certain polyphosphonate or phosphitepolyphosphonate compounds as stabilizers or certain chain-branching agents.  Examples describe the preparation of polyethylene terephthalate from ethylene glycol and free terephthalic acid using as catalyst o-phenylene antimonate or a mixture thereof and the corresponding chloride. Reference has been directed by the Comptroller to the Specification 740,381.