baber/WOPTO huggingface dataset:
Patent GB-718041-A (GB)
Title: Improvements relating to the formation of oxalate coatings on copper and copper alloys
IPC: C23C22/46
Filed: 1952-01-23
Abstract: A coating consisting mainly of ferrous oxalate is formed on a surface of copper or a copper alloy by treatment with an aqueous solution of iron oxalate in which all or a predominating part of the iron is ferric, the total iron being at least 0.5 per cent. of the solution and the solution being at least as acid as an aqueous solution of ferric oxalate alone.  The oxalate ions may be derived from oxalic acid, ferrous oxalate or ferric oxalate; free oxalic acid may be present.  If ferrous oxalate is used, oxidizing agents such as potassium dichromate, or potassium permanganate or, preferably, sodium chlorate or hydrogen peroxide are added. Chloride ions are preferably present.  The coating appears also to contain some copper oxalate.  Alloys which may be so treated include (1) Cu 95 per cent., Al 5 per cent., (2) Cu 96 per cent., Si 3 per cent. Mn 1 per cent., (3) Fe .5 per cent., Ni 29 per cent., Mn 0.75 per cent., Cu balance, (4) Sn 5 per cent. P .03-.35 per cent., Cu balance.  The treatment is said to facilitate plastic deformation.  Specification 455,077 is referred to
Patent GB-398087-A (GB)
Title: Improvements in and relating to single-pole electric couplings, particularly for high voltage transformer leads
IPC: H01R13/24
Filed: 1933-01-20
Abstract: 398,087. Two-part couplings. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Staehle, P. M.; 2314, Indian Village Boulevard, Fort Wayne, Indiana, U.S.A.) Jan. 20, 1933, No. 1948. Convention date, Jan. 21, 1932. [Class 38 (i).] A single-pole two-part coupling comprises a bushing in which one of the wires to be connected is cemented by an insulating compound, the end of the other wire being provided with a projection which passes into the coupling through a suitable slot and is held in the bushing by a suitable stop. As shown in the Figures, the lead 16 is fixed to the disc 26,. by passing the strands of the lead through a hole in the disc, turning the ends over and soldering them to the disc. The disc is then placed against the shoulder 20 in the bushing 19 and insulating compound 27 is filled into the inner end of the bushing whilst plastic and allowed to harden. The other conductor 17 is fitted to the disc 22 in the same manner as 16 and 26 are joined. The disc 22 has integral pointed prongs 23 which grip the insulation of the conductor 17 and integral arms 24 which project laterally from the conductor and engage shoulder 21 of the bushing. The outer ends of the arms 24 are bent up and support a flanged metal disc 25, the spring 28 completing the electric circuit between the two conductors. The bushing is provided with passages 29 between the shoulder 21 and the outer end, as shown in .Fig. 5, through which the arms 24 can be passed, and raised portions 30 are provided on the shoulder 21 between the grooves 29, over which the arms 24 are passed to prevent accidental disengagement of the conductors.
Patent GB-164067-A (GB)
Title: An improved auxiliary mixer for internal combustion engines
IPC: F02M29/06
Filed: 1920-01-21
Abstract: 164,067. Wilmoth, J. V. Jan. 21, 1920. Vaporizers, external. -A vaporizer and mixer consists of two parallel tubes 1, 1<A>, Fig. 3, connected by a U-piece 4 and surrounded by an exhaust-heated jacket 10. The tubes contain spiral baffles 8, 9 and are provided respectively with an inlet 3 leading from the carburettor and an outlet 3A to the intake manifold or inlet port. At starting, hot water may be supplied to the jacket 10 through an aperture normally closed by a plug 12. In a modification, two spiral baffles 8, 30, Fig. 8, of different pitch are mounted one'inside the other in a tube 1 surrounded by an exhaust jacket 10 containing a spiral baffle 31. The baffle 8 extends into the passage 3 leading from the carburettor and is of gradually increasing pitch.
Patent GB-578308-A (GB)
Title: Process and device for full-cell impregnation of timber and similar material
IPC: B27K3/10
Filed: 1943-02-06
Abstract: 578,308. Impregnating timber. TRIGGS, W. W. (Bolidens Gruvaktiebolag). Feb. 6, 1943, No. 2002. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 9, 1943.] [Class 140] Apparatus for full-cell impregnation of timber &c. with preservative liquid, containing, e.g., arsenical compound as described in Specification 468,378, comprises a cylinder A for housing the timber, connected at one end through a valve D with a tank E containing the liquid, and at the other end with a pump B, designed to evacuate or compress, through a smaller container C which may be formed as a dome on cylinder A. In operation, with valve D closed, pump B is operated to evacuate container C and cylinder A. With the vacuum still maintained, valve D is opened so that liquid enters from E until A and C are full, as shown by an indicator F, an automatic valve G serving to prevent entry of liquid into pump B. Valve D is then closed, and pump B operated to produce pressure in C and A, thereby forcing the liquid into the material in A. When valve D is opened, the compressed air in C, assisted if desired by pump B, drives surplus liquid back into E. To reduce subsequent dripping, the material may finally be subjected for a short time to a vacuum by pump B. An alternative process is described starting with valve D open. The plant may be provided with known means for drying, steaming &c. and for heating the liquid. Specification 25682/13, [Class 140], also is referred to.
Patent GB-371048-A (GB)
Title: Improvements in sizing agents
IPC: D06M13/224
Filed: 1931-01-21
Abstract: A size for artificial threads, particularly those made from organic cellulose derivatives comprises one or more drying oils such as soya bean, poppy seed, linseed or perilla oils and an oil of high viscosity which does not dry or dries only incompletely. The high viscosity oil may be a natural oil or fat chemically changed by oxidation, such as blown colza oil, blown cotton-seed oil or blown soya bean oil or a synthetic oil such as an estolide obtained, for example, by heating higher hydroxy fatty acids or esterification products thereof with mono- or polyhydric alcohols such as glycerol. Driers such as cobalt, lead, or manganese oleates, resinates or naphthenates, and oil-soluble amines or soaps, for example triethanolamine oleate, may be added.ALSO:A size for artificial threads, particularly those made from organic cellulose derivatives, comprises one or more drying oils such as soya bean, poppy seed, linseed or perilla oils and an oil of high viscosity which does not dry or dries only incompletely. The high viscosity oil may be a natural oil or fat chemically changed by oxidation such as blown colza oil, blown cottonseed oil or blown soya bean oil or a synthetic oil such as an estolide obtained for example by heating higher hydroxy fatty acids, or esterification products thereof with mono- or polyhydric alcohols such as glycerol.  Driers such as cobalt, lead or manganese oleates, resinates or naphthenates and oil-soluble amines or soaps, for example triethanolamine oleate, may be added.  The sizing agents may be applied as such or dissolved in solvents such as aliphatic or aromatic hydrocarbons, for example, benzine, benzene and toluene, or in aqueous emulsion which may contain emulsifying agents such as soaps, or sulphonated oils.  Desizing may be assisted by soap solutions containing a perborate or mixtures of soap with solvents for fats.ALSO:A size for artificial threads, particularly those made from organic cellulose derivatives comprises one or more drying oils such as soya bean, poppy seed, linseed or perilla oils and an oil of high viscosity which does not dry or dries only incompletely. The high viscosity oil may be a natural oil or fat chemically changed by oxidation, such as blown colza oil, blown cotton-seed oil or blown soya bean oil or a synthetic oil such as an estolide obtained, for example, by heating higher hydroxy fatty acids, or esterification products thereof with mono-or polyhydric alcohols such as glycerol. Driers such as cobalt, lead or manganese oleates, resinates or naphthenates and oil-soluble amines or soaps, for example triethanolamine oleate, may be added.  The sizing agents may be applied as such or dissolved in solvents such as aliphatic or aromatic hydrocarbons, for example, benzine, benzene and toluene, or in the form of aqueous emulsions which may contain emulsifying agents such as soaps, or sulphonated oils. Desizing may be assisted by soap solutions containing a perborate or mixtures of soap with solvents for fats.
Patent GB-694338-A (GB)
Title: Improvements in or relating to underground structures
Inventor: GRUNDY CECIL FREDERICK
IPC: E02D5/18
Filed: 1951-01-26
Abstract: 694,338. Piling. CEMENTATION, CO., Ltd. April 25, 1952 [Jan. 26, 1951], No. 2064/51. Class 68(ii) A method of forming an underground structure comprises building a plurality of contiguous arcuate section piers e.g. four, namely 1A...4A and a contiguous end circular section pier 5A all extending down to a first level e.g. 50 feet and together forming a continuous wall. 'The ground enclosed between the piers is now excavated to o form shafts extending down to the first level, and a plurality of further piers e.g. 1B...5B are now built extending from the bottom of the shafts to a second level e.g. 100 feet each of the further piers being of a related shape to those of the first level but of smaller radius and embracing one another to form a second continuous wall similar to the first, but at a lower level. Buttresses 16 are 'built continuing the curve of the arcuate piers 1A...4A, portions X and Y of these piers are removed and the arcuate sections of the inner piers are extended in the spaces thus made until they embrace the next inner pier as shown by the transition from 2B to 3B. The wall may be similarly continued downwardly to a third or lower level. Specification 694,337 is referred to.
Patent GB-1146961-A (GB)
Title: Improvements in or relating to spark gap constructions
Inventor: AIREY FRANCIS HERBERT
IPC: H03K3/537
Filed: 1966-01-17
Abstract: 1,146,961. Pulse generating circuits. SOUTH WALES SWITCHGEAR Ltd. 2 Jan., 1967 [17 Jan., 1966], No. 2087/66. Heading H3P. [Also in Division H1] In a Marx type impulse voltage generator in which a number of capacitors are charged in parallel and discharged in series by the triggering of a number of spark gaps, at least one of the spark gaps comprises two outer electrodes and an intermediate electrode 2 which is rotatable to enable variation of the amplitude of the impulse voltage. Preferably all the spark gaps are of this form and the discharge may be triggered either by rotating just one or all of the centre electrodes to the minimum gap position. The waveshape control resistors (R 3 ) in, one embodiment, Fig. 3 (not shown), may be provided by a colloidal graphite coating on the shaft on which each centre electrode is rotated.
Patent GB-697224-A (GB)
Title: Process and apparatus for treating hydrocarbons
Inventor: WILKINSON FRANCIS EDWARD
IPC: C10G9/24
Filed: 1949-01-26
Abstract: 697,224. Treating gases with discharges. WILKINSON HIGH FREQUENCY, Ltd. Jan. 16, 1950 [Jan. 26, 1949], No. 2167/49. Class 39(i) Apparatus for treating hydrocarbon gas to produce lighter products by dissociation or cracking comprises a tube 1 of glass or other electrical insulating material having an inlet 2 for supplying gas to be treated and an outlet 3 for the treated gas. A coil of wire 5 extends into the tube and is sealed in the side wall or end closure of the tube and another coil of wire 4 surrounds the tube. One end of the coil 4 and one end of the coil 5 are connected by terminals 6 and 7 to a high frequency oscillator, Fig. 2 (not shown), whereby an electromagnetic field is applied to the gas passing through the tube. The high frequency oscillator contains a number of tuned circuits which produce a heterodyne effect which is stated to assist the process. The frequencies used range from 25 to 100 Kc/s. and the process does not require a high temperature and pressure. Finely divided carbon is deposited in the tube.
Patent GB-617858-A (GB)
Title: Improvements in and relating to method of concentrating substances in solution
IPC: B01D9/04
Filed: 1944-10-17
Abstract: A solution of which the freezing point is nearly the same as that of the pure solvent is concentrated by adding it gradually to a chilled secondary solution soluble or miscible with the first solution and of lower freezing point, in such quantity as to cause p  the formation of ice, cooling the mixture, and separating the concentrated liquid remaining.  The desired ingredients may be precipitated as solids. The solvents may be the same in each solution, the second solution having a freezing point depressant, e.g. sugar.  Alcohol may be added in the case of extracts soluble in weak alcohol and insoluble in concentrated alcohol, heat being extracted until the alcohol is concentrated sufficiently to cause precipitation.  Specifications 617,776, 617,859, and 617,860 are referred to.
Patent GB-500909-A (GB)
Title: Method of connecting the tubes of bicycle frames
IPC: B62K19/20
Filed: 1938-01-24
Abstract: 500,909. Soldering or welding bicycle tubes. THIPLEX SOC. ANON. Jun. 24, 1938, No. 2268. Convention date, Jan. 23, 1937. [Classes 83 (ii) and 83 (iv)] The tubes of bicycle frames are connected by providing sleeves on the ends of the tubes and hard-soldering the sleeves to the ends of the tubes and also to the sleeves on the abutting tubes so that the joint resembles a muff connection. The sleeves C, D of the steering- column tubes A, B are shrunk on the tubes, the sleeve C hard soldered to the tube A at F, and the sleeve D simultaneously hard soldered to the tube B and also to the sleeve C. Sleeves K, L, M are similarly hard soldered to the tubes J, H, C and to the pedal bearing sleeve O. The Specification as open to inspection under Sect. 91 states that the joint may be produced by welding. This subject-matter does not appear in the Specification as accepted.
Patent GB-215316-A (GB)
Title: Process for the production of solutions of mercury derivatives of hydroxy-sulpho-benzoic acids and their homologues, suitable for use in therapeutics
IPC: C07F3/12
Filed: 1924-01-28
Abstract: The process of the parent Specification is extended to the preparation of solutions of the mercury compounds of hydroxy-sulphobenzoic acids which have been mercurized in the presence of excess of some other acid of dissociation constant of the order of 10-1 or more, or of such mercury compounds prepared without excess of acid, as have been subsequently treated with acid. Physiological salt solutions such as Ringer's solution or the solution known as "Normosal" may be added as neutral salts, either in the above process or in that of the parent Specification.  Examples are given of the production of solutions from the mercury compound obtained by heating sulphosalicylic acid with mercuric oxide and water in presence of benzenesulphonic acid, ammonium chloride being used as the neutral salt, and from the mercury compound obtained by heating sulphosalicylic acid with mercuric oxide and water and boiling the product with dilute sulphuric acid.
Patent GB-347195-A (GB)
Title: The process of preparing 1-amino-4-halogen-9-anthrones and substitution products andderivatives thereof
IPC: C07C225/22
Filed: 1929-12-16
Abstract: 1-Amino-4-halogen-9-anthrones.-31-Amino or 31-acidylamino-41-substituted or unsubstituted-61-halogenbenzyl-o-benzoic acids are condensed to effect ring-closure to the 1-amino- or 1-acidylamino-2-substituted or unsubstituted-4-halogen-9-anthrones.  As condensing agents may be used concentrated sulphuric acid, phosphorus pentoxide in a solvent such as acetic acid, or phosphorus pentachloride in a solvent such as toluene.  In examples (1) 31-acetylamino-41-methoxy-61-chlorobenzyl-o -benzoic acid is condensed to 1-acetylamino-2-methoxy-4-chloro-9-anthrone; this may be hydrolysed to the corresponding amino body or oxidized to 1-acetylamino-2-methoxy-4-chloranthraquinone: (2) 31 - acetylamino - 41 - methoxy-61-bromobenzyl-o-benzoic acid is condensed to 1-acetylamino-2-methoxy-4-bromo-9-anthrone which may be hydrolysed to the free amino derivative or oxidized to the 1-acetylamino-2-methoxy-4-bromoanthraquinone: (3) 31-acetylamino-41-methyl-61-bromo (and 61-chloro-)-benzyl-o-benzoic acids are condensed to 1-acetylamino-2-methyl-4-bromo- (and 4-chloro-)-9-anthrone which may be hydrolysed to the free amino derivatives or oxidized to the 1-acetylamino-2-methyl-4-bromo-(and 4-chloro-)-anthraquinones: (4) 31-acetylamino-41 , 61-dichlorobenzyl-o-benzoic acid is condensed to 1-acetylamino-2-4-dichloro-9-anthrone which may be hydrolysed to the free amino body.  The production of 1-amino-2-ethoxy-4-chloro- and 4-bromo-9-anthrones, and 1-amino-2-halogen-4-bromo-9-anthrone and of the N-acetyl derivatives of these is also mentioned, and also anthrones containing a carboxylic or sulphonic acid group in the 2-position are referred to.  When these anthrones are heated to 70-80 DEG  C. with sulphuric acid they are converted to highly coloured anthraquinone bodies which dye acetate silk.  The starting materials are prepared by the process of Specification 347,171.  The Specification as open to inspection under Sect. 91 (3) (a) also refers to the hydrolysis of the acetylaminoanthraquinones derived by oxidation of the anthrones prepared according to examples 1, 2, and 3 above but this subject-matter does not appear in the Specification as accepted.
Patent GB-817433-A (GB)
Title: All geared clutch or variable gear
IPC: F16H29/20
Filed: 1957-01-23
Abstract: 817,433. Variable-speed gearing. LOWRIE, R. M. July 23, 1957 [Jan. 23, 1957], No. 2356/57. Class 80 (2). A variable-speed drive between shafts G, G1 is obtained by means of worm planets C on a carrier F on shaft G meshing with a spiral sun gear A on shaft G 1. The planets Care rotatably supported in housings D which have spigots E pivoting in the carrier F. Movement of the sun gear A axially relative to the carrier F will cause the planets to engage in different parts of the tooth spirals B, B of gear A and in so doing to pivot about the spigots E. With the planets engaging at B1 the movement and torque transmitted is small with the planets rotating freely whilst in the position shown at B the planets do not rotate but transmit the torque direct.
Patent GB-130958-A (GB)
Title: Improvements in, and connected with, the Presser-feet of Sewing Machines.
Inventor: MERRITT ARTHUR AUGUSTUS
IPC: D05B29/06
Filed: 1919-01-30
Abstract: 130,958. Merritt, A. A., and Getler, J. F. Aug. 3, 1918, [Convention date]. Sewing - machines ; presser-feet.-Single or duplex presser-feet are proviued with arched spring soleplates which yie.d to irregularities in the work. The invention is shown applied to the duplex presserfoot used in the machine described in Specifications 6036/12 and 6037/12 for making the seam described in Specification 14917/06. The sole-plate 70, Fig. 4, is secured by a screw 72 at the front, and is loosely retained bv a hools portion 73 at the back. The sole-plates being pivoted about the screws 62, 72 are free to separate as shown in Fig. 6 to accommodate the upstanding edges of thick seams. A simple wire loop forms a stop to limit this movement.
Patent GB-1140221-A (GB)
Title: Improvements in or relating to fluid flow control
IPC: F15B13/043
Filed: 1966-01-19
Abstract: 1,140,221. Fluid-pressure servomotor systems. WESTON INSTRUMENTS Inc. Jan.19, 1966 [Jan. 21, 1965], No. 2430/66. Heading G3P. Apparatus controlling the supply and exhaust of fluid to and from a motor is provided with a valve which acts to move the motor to a predetermined position in the event of failure of the input signal. A valve 11 comprises a torque motor responsive to an electrical input signal to move a flapper which adjusts a spool valve to control the connection of motor ports C 1 , C 2  to the supply P or exhaust E in known manner. A valve manifold is mounted on the valve 11 and has ports C 1 ', C 2 ' connected to the motor, a port P' connected to a fluidpressure supply and a port E' connected to a reservoir. The ports C 1 , C 2 , C 1 ', C 2 ' are connected by passages 103, 111, 101, 109 respectively to a transverse bore 61 in which slides a spool valve 69. The supply pressure at P' flows through passage 83 to a passage 75 which is connected by passage 84 to port P 1 , through a restrictor 88 and passage 86 to a chamber at the left hand end of the spool valve and by a passage 89, manifold 59 and passage 105 to the bore 61. The exhaust port E' is connected by a passage 92 to a transverse passage 93 which is connected by passage 96 to port E, passage 94 to the right hand end of the spool, passage 99 to the passage 75 and by passage 97, manifold 59 and passage 113 to bore 61. Valve 69 is normally moved by the fluid in the left hand chamber to the position shown when signals are fed to the valve 11 by a solenoid valve 77 closing the passage 99. In this position the passages inter-connect the respective ports P' to P, C 1 ' to C 1 , C 2 ' to C 2  and E' to E. When the electrical signal fails, the valve 77 opens passage 99 to exhaust the chamber at the left hand end of the spool which moves to the left under the action of spring 73. In this position P' is connected to C 1 ' and E' to C 2 ' so that the motor moves to one extreme position. The manifold may be adjusted to connect P' to C 2 ' and E' to C 1 ' in the event of signal failure.