baber/WOPTO huggingface dataset:
Patent GB-420317-A (GB)
Title: Method of preparing plastic materials derived from urea and formaldehyde
IPC: C08G75/10
Filed: 1933-06-29
Abstract: Plastics materials derived from urea and formaldehyde or polymers thereof such as trioxymethylene and containing combined sulphur are prepared by producing hydrogen sulphide by decomposition of a sulphur compound other than ammonium sulphide in the urea-formaldehyde solutions either before or after the formation of methylolurea whilst controlling the pH of the reaction medium between 5 and 7.  An alkali or alkaline earth sulphide and acid such as carbonic acid may be added so as to produce hydrogen sulphide and a soluble or insoluble salt.  It is possible to use an anhydrous medium and add insoluble sulphides such as zinc, calcium, barium or strontium sulphides and the reaction may be activated by the addition of an acid or by heat. Fillers may be present and in some cases the undecomposed sulphide and the residue from the decomposition may be used as a filler. Luminescent sulphides, which may be activated by treatment with a radio-active salt, may be used to give luminescent bodies.  In examples: (1) an aqueous solution of sodium sulphide and formic acid are added to a solution of urea and formaldehyde, the solution being maintained at the desired value by the addition of, if desired, zinc carbonate to yield a product that may be used for preparing plastic masses; (2) a methylolurea is treated as in example (1); (3) a condensation product of urea and formaldehyde prepared in the presence of zinc carbonate is treated as in example (1); (4) a cold solution of urea in formaldehyde or a dimethylolurea solution is treated with a solution of barium sulphide and dilute sulphuric acid or carbonic acid gas; (6) a moulding powder comprising a urea or thiourea-formaldehyde resin prepared in the presence of an acid compound such as benzoic, phthalic, cinnamic, succinic and sebacic acid and a cellulose filling material is mixed with an industrial metal sulphide and the product when moulded yields luminescent pieces; (7) a mixture of a dry methylolurea, an alkaline earth sulphide and benzoic, salicylic and sebacic acid is moulded; (8) a viscous alcoholic solution of an acid condensation product of dimethylolurea is mixed with a dry powdered sulphide such as zinc, calcium or strontium sulphide with or without polyvalent alcohols, oils, resins and plasticizers and used as a varnish.  Specification 386,146 is referred to.  The Specification as open to inspection under Sect. 91 also included an example (8) describing the interaction of trioxymethylene with a powdered alkali earth sulphide and the condensation of the product with urea or thiourea.  This subject-matter does not appear in the Specification as accepted.
Patent GB-633958-A (GB)
Title: Improvements in and relating to the preparation of sera for therapeutic use
IPC: C07K16/06
Filed: 1947-07-11
Abstract: In preparing refined antibody sera by the process claimed in Specification 605,687, whole blood is employed as the starting material instead of a serum. 3.5 per cent of phenol or 2.0 per cent of ortho-cresol may be employed.  During the precipitation the mixture may be heated to not exceeding 50 DEG C (say 40 DEG C) after being allowed to stand overnight.  The precipitation may be carried out in the pH range 4.5-8.5, preferably 6.0-7.5.  The presence of chloroform, carbon tetrachloride, ethylene di-chloride or other alkyl or alkylene chloride containing one to three carbon atoms during the precipitation assists in removing traces of blood pigment from the product.  The whole blood may contain an anti-coagulant such as potassium oxalate.
Patent GB-149835-A (GB)
Title: Improvements in automobile signals
IPC: B60Q1/34
Filed: 1919-07-26
Abstract: 149,835. Hyde, C. L. July 20, 1919. Semaphore a n d pointer signals; roadtraffic signals on vehicles.-A device for indicating the intended direction of movement of an automobile comprises a pointer 5 poised so as normally to hang in the vertical position shown, and moved to an horizontal position to point to the right or left by means of a horse - shoe electromagnet having coils 13, 14 which can be independently energized. The pointer spindle 23 l i e s slightly above the arms 9, 10 of the magnet, and carries a crescentshaped armature adapted to rotate between the poles of the magnet, until arrested with the pointer in the horizontal position by a projection 33 coming against one or other of the arms 9. 10. The projection and central portion of the armature is thicker than the remainder. This form of armature minimizes the effect of stray magnetic lines from the unenergized arm of the magnet. The upper surfaces of the magnet arms have plates 34 of non-magnetic material to prevent sticking of the armature when the magnet coil is de-energized. A pin 42 on the spindle 23 makes contact with a blade contact 43 when the pointer is horizontal, closing the circuit of a bell 40, 41. The bell may be situated near the indicating-device as shown to call attention to the pointer, or may be situated elsewhere, e.g. near the driver, serving as a tell-tale to show that the apparatus is working. The circuits of the coils 13, 14 are controlled by a switch 6 within reach of the driver.
Patent GB-577426-A (GB)
Title: Improved manufacture of eye-protecting glasses
IPC: C03C3/095
Filed: 1943-11-11
Abstract: 577,426. Eye protecting glass. CORNING GLASS WORKS. Nov. 11,. 1943, No. 18765. Convention date, Dec. 28, 1942. [Class 97 (i)] [Also in Group XXIII] In a coloured eye protecting silicate glass the colouring constituents consist of 5 to 20, per cent of Nd2O3, 0.5 to 1.5 per cent of CuO, 0.3 to 0.7 per cent of Cr2O3. An example of a glass of a bright green colour suitable for use in welding aluminium is as follows, calculated in weight percentages, SiO2 60; Na2O 17 ; B2O3 2; La2O3 10; Nd2O3 10; CuO 0.8: Cr2O3 0.4.
Patent GB-969382-A (GB)
Title: Improvements in extracting units
IPC: D06C7/00
Filed: 1962-05-16
Abstract: 969,382. Dry cleaning. FOSTER KNITTING MACHINE CO. Ltd., and R. F. HUMPHREYS. April 24, 1963 [May 16, 1962], No. 18772/62. Heading D1A. Dry cleaning of part of a fabric is effected by placing the part of the fabric to be cleaned over a gauze 23 of an interchangeable tube 21, spraying the part from a gun with dry cleaning solvent, e.g. trichloroethylene, and drawing air through the material and gauze 23 into tube 21. The tube is provided at one end with a flange 20 for attachment to the inlet of an electric motor-driven fan 11 having a flexible exhaust pipe 17. The tube may be a rigid closed-ended cylindrical tube of variable diameter having a gauze in its side (as shown), or it may be a flexible tube provided at one end with a funnel-like member covered with gauze.
Patent GB-1084680-A (GB)
Title: Improvements in or relating to load-handling vehicles
IPC: B66F9/12
Filed: 1966-04-28
Abstract: 1,084,680. Fork or platform extensions for load-handling trucks. F. JUNGHEINRICH. April 28, 1966 [March 19, 19,66], No. 18774/66. Heading B8H. A load handling vehicle comprises a height adjustable carrier 6 consisting of two connected vertical legs (7), (8), Fig. 2 (not shown), with load-bearing arms (9), 10 of fixed length together constituting a load-bearing fork. A double-armed load-bearing surface extension member 11 extends outwardly from a hinge 12 and consists of two connected tracks 24, 25. The extension member 11 is retained in its inoperative position 15 by a pivoted hook 16. The extension member 11 may be used with a platform and may have an open or solid central region.
Patent GB-238213-A (GB)
Title: An improved method of and means for constructing elongated hollow bodies such as thebodies of aircraft
IPC: B64F5/10
Filed: 1925-07-23
Abstract: 238,213. Junkers, H. Aug. 8, 1924, [Convention date]. Benches, work.-For constructing hollow bodies such as the rear ends of aircraft fuselages, a rectangular girder 1 is pivotally mounted at its ends in trestles 3 and has adjustable members 4 for supporting the transverse frame members 6 of the body in their correct positions, the completed body being ultimately withdrawn from the girder without dismantling the latter. The girder may be rotated to give access to all parts as the longitudinals 7 and corrugated covering 10 are secured in position or it may be locked against rotation by a pin 9. The front part of the fuselage is constructed in an external cradle 11, Fig. 3, having push bolts 12 for holding the transverse frames 13 and longitudinals 14 in position, the covering being applied after removal from the cradle. The two parts of the fuselage are subsequently connected together.
Patent GB-836996-A (GB)
Title: Method of stabilising polyolefines and compositions so obtained
IPC: C08K5/36
Filed: 1956-06-18
Abstract: Polyolefins obtained by the use of catalyst derived from Group IVa, Va or VIa metal compounds with organo-metallic compounds of alkali, alkaline earth or earth metals (e.g. as in Specifications 799,392, 799,823 and 801,031) are stabilized with S, Se, Te or compounds thereof which will liberate the S, Se or Te, e.g. antimony pentasulphide, ammonium polysulphides, diisopropyl xanthogen disulphide and sulphur monochloride.  The polyolefins specified are polyethylene and/or polypropylene, and copolymers of ethylene and propylene with each other or with styrene, butene or isobutylene. Polymers of styrene, butene and vinyl chloride may also be present. Other ingredients which may be present are accelerators such as thiuram disulphide and mercaptobenzthiazole, fillers such as chalk, barytes and talcum, dyes and pigments such as phthalocyanine and azo type dyes, and other stabilizers such as phenols and aromatic amines. The stabilizers may be added to the polymers in solution, e.g. in carbon disulphide, or in aqueous dispersion, such as during the working up of the polymer.  If the polymer is of low molecular weight, solutions thereof in aromatic hydrocarbons, chlorinated hydrocarbons, ketones and ethers may be utilized.  The stabilizers may otherwise be added before or during the polymerization process.
Patent GB-1407879-A (GB)
Title: Acrylonitrile co polymers containing antistatic agents
IPC: C08K5/00
Filed: 1973-04-19
Abstract: 1407879 Antistatic acrylonitrile polymer compositions; polyoxyalkylated compounds BAYER AG 19 April 1973 [21 April 1972] 18955/73 Headings C3P and C3R Acrylonitrile polymers and copolymers contain, as antistatic additive, a compound of the general formula in which m represents an integer, n represents the number 1 or 2 and corresponds to the valency of A, each R represents hydrogen or a methyl radical, R 1  represents a straight or branched chain alkyl radical or an aryl radical, X represents the group -CO- or -SO 2 -, B represents an alkylene radical with 1 or 2 carbon atoms or an arylene radical of the general formula in which each R 2  represents hydrogen, an alkyl radical or fluorine, chlorine, bromine or iodine, and each R 3  represents hydrogen, NH 2 , NO 2 , CN, CF 3 , Cl or in which R, R 1 , X and m have the meanings indicated above, A represents the radical R 4 O-, (R 4 ) 2 N-, R 4 N=R 4 , CO.O-, wherein R, R 1 , R 2 , R 3 , X and m have the meanings mentioned above, R 4  represents an alkyl, aryl, alkylaryl or arylalkyl radical and R 5  represents a straight or branched chain alkylene radical and Y represents a straight or branched chain alkyl radical or an aryl radical or, when n=1, Y can also represent a radical of the general formula in which R, R 1 , R 5 , A, B, X and m have the meanings mentioned above. The acrylonitrile copolymers may contain up to 40% by weight of units of comonomers such as (meth)acrylate esters, (meth)acrylic acid amides, vinyl chloride, vinylidene chloride and monomers which improve the affinity for acid or basic dyes (e.g. sodium methallyl sulphonate). The antistatic compounds themselves also improve the affinity to basic dyes of the acrylonitrile polymers. Fibres can be spun from solutions or melts of the polymers containing the antistatic compounds. The antistatic compounds used in the invention can be prepared by reacting a polyoxyalkylated alcohol or amine with an appropriate chloro-amide or chloro-sulphonamide. In illustrated preparations the following are reacted: (a) ethoxylated stearyl alcohol with N,N-dimethyl-chloroacetamide, (b) ethoxylated dodecyl alcohol with N-methyl-N-stearyl-chloroacetamide, (c) ethoxylated N-methyl-stearylamine with N,N - dimethyl - 3 - nitro - 4- chloro-benzene sulphenamide, (d) ethoxylated isononylphenol with N,N-dimethylpentachlorobenzene sulphonamide, (e) ethoxylated hexane- 1,6-diol with N,N-diethyl-3-nitro-6-ehlorobenzene sulphonamide, and (f) a propylene oxide/ ethylene oxide/propylene oxide segmented copolymer with N,N-dimethyl-3-nitro-4-chlorobenzamide; the nitro group in the product can be converted to an amino group by hydrogenation.
Patent GB-856137-A (GB)
Title: Improvements relating to production of silicon
IPC: H01L21/205
Filed: 1956-06-19
Abstract: Silicon is prepared by the thermal decomposition of recrystallised silicon tetraiodide.  Recrystallisation may be effected by partial crystallisation of a melt, by zone refining, or by partial crystallisation from solution.  Solvents specified are heptane, octane, nonane, decane, undecane, dodecane and tridecane; alkyl substituted cyclohexanes, cycloheptanes and cyclooctanes; carbon tetrachloride, methylene dichloride, ethylene dichloride and 1-chlorooctane; carbon disulphide; and benzene, toluene, monochlorobenzene, dichlorobenzene, naphthalene and phenylethane. Recrystallisation may be repeated one or more times.  An equimolecular proportion of solvent may be employed. After crystallisation from solution, the crystals are preferably heated in vacuo at a temperature below the b.p. to remove residual solvents. The recrystallised silicon tetrachloride may be fractionally distilled.  Distillation may be effected in a 12 plate quartz column or a 30 plate pyrex column at atmospheric pressure and at a temperature of 295 DEG C. and a middle fraction decomposed. Decomposition may be effected at a temperature of 800-1,300 DEG C., e.g. 1,000 DEG C., at a pressure of 0.5-10 up to 100 mm. or more of mercury, and in contact with quartz or tantalum. The silicon tetraiodide to be decomposed may be prepared by passing vaporous iodine diluted with nitrogen over powdered silicon containing less than 5% of impurity heated to a temperature of 450-900 DEG C., preferably 600-800 DEG C.  Specification 843,467 is referred to.
Patent GB-660129-A (GB)
Title: Improvements in or relating to cutting tools such as drills, milling cutters, lathe turning tools and the like
IPC: C23C24/08
Filed: 1948-07-15
Abstract: A process for the treatment of cutting tools, such as drills, reamers, milling cutters and lathe tools, comprises bonding either molybdenum di-sulphide or boron nitride with an ester to form a paste, coating the tool with the paste and heating the tool to volatilize the ester and leave an adherent film of molybdenum di-sulphide or boron nitride on the surface of the tool.  Amyl acetate or a like substance or cellulose thinners may be used as the ester and, with these, the tool is heated to 300-350 DEG C.  The Specification states that the film appears to act as a solid lubricant.  According to the Provisional Specification, a starch such as corn starch may be used as the binding agent in making the paste.ALSO:A process for treatment of cutting tools, such as drills, reamers, milling cutters and lathe tools, comprises bonding either molybdenum di-sulphide or boron nitride with an ester to form a paste, coating the tool with the paste and heating the tool to volatilize the ester and leave an adherent film of molybdenum di-sulphide or boron nitride on the surface of the tool.  Amyl acetate or a like substance or cellulose thinners may be used as the ester and, with these, the tool is heated to 300-350 DEG C.  The Specification states that the film appears to act as a solid lubricant.  According to the Provisional Specification, a starch such as corn starch may be used as the binding agent in making the paste.
Patent GB-184786-A (GB)
Title: Improvements in and relating to the gaiters of springs
IPC: F16F1/24
Filed: 1922-07-12
Abstract: 184,786. Staub & Co. Aug. 13, 1921, [Convention date]. Gaiters.-A protective cover 2 for leaf springs 1 is constructed with closing means at the upper side and a free space between itself and the spring for the reception of the lubricant, the cover being kept at a distance from the spring by corner insertions 5 of material permeable to lubricant. The gaiter is made in two halves, soft intermediate layers being provided under the end straps to prevent penetration.The top overlapping edges are closed by hook and lace fastenings 7. An oil inlet nipple 8 is provided at the top of the gaiter, and an outlet may be provided at the bottom.
Patent GB-275594-A (GB)
Title: Improvements in or relating to methods for the synchronisation of picture telegraphs, telautographs and the like
IPC: H04N5/08
Filed: 1927-07-20
Abstract: 275,594. Lorenz Akt.-Ges., C., (Assignees of Korn, A.). Aug. 3, 1926, [Convention date]. Copying-telegraphs; synchronous movements.- Currents denoting the tone of picture elements are superimposed on periodic synchronizing currents. Fig. 1 shows a transmitting arrangement in which the picture formed in non-conducting material on a metal base is mounted on a drum 1 and explored by a contact stylus 2. The shaft of the drum carries an interrupter disc 4 making and breaking a circuit including battery 3, resistances 5 and 6, and a line or wireless transmitter 7, the resistance 6 forming a shunt across the stylus 2 and drum 1 : thus synchronizing impulses are sent out by the interrupter 4, and these are strengthened by the action of the drum 1 to represent the picture elements. If the picture signals are to be graded, an optical arrangement using a photo-electric cell may replace the stylus transmitter. For line transmission an a.c. generator is preferably used in place of the interrupter 4 and battery 3, with an inductance replacing the resistance 6. Fig. 2 shows a receiving arrangement. The currents received through terminals 8 are amplified by a valve 9 of which the output circuit includes a battery 12, resistance 14, and a device 13 for translating the current variations into light variations for reproducing the picture photographically. This device is biassed to respond only to currents of an intensity exceeding that of the synchronizing frequency. The valve 9 is coupled by the resistance 14 to a second valve 15, the cathode being connected to an intermediate point of the battery 12, while the output circuit includes a device 18 controlling the synchronous motor driving the receiving apparatus. The saturation point of the valve 15 is such that the amplified picture currents do not affect the synchronizing device 18.
Patent GB-500020-A (GB)
Title: Instrument for applying shoe cream and other cream-like substances
IPC: A47L23/05
Filed: 1938-06-25
Abstract: 500,020. Containers and applicators for shoe and like creams. STOY, W. June 29, 1938, No. 19263. [Class 125 (i)] A device for containing and applying shoe cream and the like comprises a cylindrical container a, and a piston g connected to a handle f provided with a pad or brush h which serves for shutting off the cream from the air and for applying it to shoes. The pad h may be used with a plate d perforated at the edges and resiliently engaging the sides of the cylinder a. The mouth of the container may be widened for facilitating entry of the piston g. In the form shown a part a<1> is threaded to the container and serves as a guide to the piston. The lower part a serves as a container for marketing the cream whereas the upper part can be used repeatedly. The parts may be made of glass, metal, or other transparent or opaque materials.
Patent GB-1246047-A (GB)
Title: Improvements relating to the coating of surface areas with protective material
IPC: H05K3/28
Filed: 1969-04-15
Abstract: 1,246,047. Protective coatings. INTERNATIONAL BUSINESS MACHINES CORP. 15 April, 1969 [24 April, 1968], No. 19289/69. Heading B2E. Substrates such as electronic circuit panels, electrical windings, wire or wire mesh are provided with a protective coating by dipping the substrate into a 15-25% wt. solution of amide-imide polymer in dimethyl acetamide, dipping the coated substrate in a gelating solvent consisting of benzyl alcohol, dioxane or cyclohexanone, agitating the substrate to remove excess gelled solution and then heating the gelled film to drive off the solvents and cure the film. The gelled film may be heated at 100C for three hours or in three stages of one hour at 100C., 150 and 175C respectively.
Patent GB-859621-A (GB)
Title: Improvements in or relating to moulding apparatus for pneumatic tyre covers
Inventor: SMITH HAROLD
IPC: B29D30/06
Filed: 1956-06-22
Abstract: 859,621. Moulding tyres. DUNLOP RUBBER CO. Ltd. June 5, 1957 [June 22, 1956], No. 19330/56. Class 87(2). A tyre vulcanising press comprises a pair of axially separable mould parts 3, 4 or 5, 6 between which are located diaphragm supporting members 10, 11, an annular radially expansible diaphragm 15 being attached fluidtightly to these members and an annular seal 14 which is fluid-tightly engageable with the members defining between them and the diaphragm an annular fluid-tight chamber. The apparatus shown in the Figure is a twin diaphragm type in a partially closed position in which the supporting members 10, 11 have telescoping projections 12, 13, the innermost projection 12 having a recess 12a on its outer periphery which carries an annular seal 14 which is fluid-tightly slidable on the inner peripheral surface of the other projection 13. This seal is provided to withstand vacuum pressure which is applied to the chamber 15a in order to fully withdraw the diaphragm from the cover so that the cover may be easily withdrawn from the apparatus after cure. A second annular seal 16 is located in a recess 16a formed in the projection 13 and is provided with an inclined annular extension 16b which engages with a correspondingly inclined surface 10a on the upper supporting member 10 when the members are moved axially together to provide a fluid-tight chamber for the curing steam. The collapsible means 17 for maintaining the supporting members in spacedapart relationship comprises three exactly similar toggle mechanisms located equiangularly spaced around and between the members, each mechanism (see lower set) having a pair of links 18, 23 connected together by means of a common pivot 20, each link being pivotally connected to a supporting member. A compression spring 29, connected at one end to the common pivot 20 and at the other end to an abutment 26 urges the toggle mechanism into the over-centre position. The extent of this over-centre movement is limited by the engagement of the cranked extension 25 formed on the upper link 23 with the upstanding lug 19 attached to the lower press platen. The lower link 18 has a cranked extension 21, the end of which, when the supporting members are in the spaced-apart position, projects above the uppermost surface of the upper supporting member 10 and is provided with a roller 22 which is engageable with the intermediate platen 34 (or the upper platen 1 in the case of the upper set) in order to collapse the toggle mechanism.
Patent GB-200700-A (GB)
Title: Improvements in or relating to last stands
IPC: A43D5/02
Filed: 1922-07-14
Abstract: 200,700. Cann, T. E. July 14, 1922. Lasts; last-supports.-A shoe-maker's adjustable last combined with a stand comprises a fore part 6 and a heel part 3 each removably fitting a carrier block 5, 2. The block 2 is fixed and the block 5 is slidable towards or away from the block 2 along a guideway formed in a base plate 1, and is actuated in one direction by a. tension spring 7 and in the other direction by a hand lever 11 provided with a nose engaging the slidable block and a tooth 16 engaging a rack to retain the lever in adjusted position. A spring pressed bar 19 above the rack, and a rubber washer or spring above the lever 11, on its pivot, normally retain the tooth- 16 in engagement with the rack. Specifications 4767/06 and 17994/07 are referred to.