baber/WOPTO huggingface dataset:
Patent GB-1210961-A (GB)
Title: Glass melting and refining furnace
IPC: C03B5/24
Filed: 1968-05-09
Abstract: 1,210,961. Glass melting furnaces. CORNING GLASS WORKS. 9 May, 1968 [9 March, 1967], No. 22008/68. Heading C1M. [Also in Division F4] A glass melting and refining furnace comprises a melting end 10, a refining end 12, a continuous throat 14 connecting the refining end with the melting end, glass batch feeders 18 in the melting end at a location remote from the throat and means 20, 24 for heating the melting end to melt the batch, the refining end 12 being circular in horizontal cross-section, having a domed roof and being separated from the melting end by the throat, the outside walls of which throat are at least partially in contact with the ambient atmosphere. The refining end is provided with pairs of burners 28, 30, 32 which can be used either to heat or to cool the glass in that end. It is preferred that only the burners 28, 30 be used for cooling. A control system 52-60 maintains the pressures within the melting and refining ends in constant relationship. The furnace has particular application in melting glasses which emit fumes highly corrosive to the refractories in that the separation of the melting and refining ends provides for better cooling of the furnace superstructure. The circular refining end reduces stagnation of glass.
Patent GB-318358-A (GB)
Title: Improvements in damp proof paints for walls
IPC: C09D193/00
Filed: 1928-07-31
Abstract: 318,358. Plant, F. S. July 31, 1928. Paints.-A damp-proof paint, particularly for covering newly plastered walls, is composed of methylated spirit, whiting, Russian tallow, oil of mirbane (nitrobenzene) and a shellac alternative known under the trade name of Synlac. The methylated spirit may contain resin.
Patent GB-624511-A (GB)
Title: Improvements in or relating to signalling devices such as are used in telephone substations
IPC: H04M1/50
Filed: 1946-07-25
Abstract: 624,511. Generating low-frequency oscillations. STANDARD TELEPHONES & CABLES, Ltd., and RANSOM, D. H. July 25, 1946, No. 22139. [Class 40 (v)] [Also in Group XXXIX] Damped trains of oscillations of at least one frequency are generated for signalling purposes upon removal of a potential which saturates the magnetic circuit of an inductance connected in a resonant circuit. Fig. 2 shows the waveform of the oscillations in a circuit including a saturable core when potential applied at 1 is removed at 2. Oscillations generated in this manner may be utilized in a key sender, Fig. 4, incorporated in a telephone subset. Incoming lines 1, 2 from the exchange are connected to a subset and a bank of keys K1 ... K0, wired to transformers, the primary windings of which are saturable cores bridged by condensers 18 ... 21 to form resonant circuits of different frequencies. The secondary windings are connected in series in the line 1, 2. The arrangement is such that one or a combination of frequencies may be transmitted by the operation of the appropriate key to saturate the corresponding transformers and the subsequent release of the key to produce the desired oscillations as determined by the resonant circuits. According to the Provisional Specification, the inductances and condensers may be in series and form part of a calling subscriber's telephone with the condensers normally short-circuited by switches so that on lifting the receiver current passes through the inductances and saturates them. One or more code signals representing a digit is passed to the line via the condensers on opening one or more of the switches.
Patent GB-884487-A (GB)
Title: Electric motor
IPC: H02K5/04
Filed: 1960-06-24
Abstract: 884,487. Motor casings. KING-SEELEY THERMOS CO. June 24, 1960 [Sept. 4, 1959], No. 22172/60. Class 35. An electric motor housing comprises two identical parts 12, 14 made of magnetic material e.g. soft steel or sintered metal, which are so shaped as to provide curved pole faces 18 to enclose and locate two abutting field windings 22, 23 and to provide bearing mountings. The field windings are received in recesses 20 surrounding pole faces 18. Shoulders 24, 26 are provided at one end of each member for receiving brush holders 28, 30 which include projections 58, 60 engaging recesses 54, 56 in the shoulders. Both ends of the housing have conical recesses 32, 34 supporting sintered bearings 36, 38 which are lubricated by oil-saturated felt packing rings 37, 39. The bearings are forced into seated engagement with the recesses by means of two leaf springs 46, 48 on the shaft which are urged against sloping surfaces 40, 42 when the housing halves are riveted together. Axial displacement of armature 64 is prevented by providing shims 70 between commutator 66 and retaining spring 46, and a snap ring 72 and shims 74 at the other end. To obtain a higher power rating for the machine a girdle of magnetic material may be fixed round the casing members (Fig. 6, not shown). In a further embodiment the field pole pieces 18 are skewed by one half of an armature tooth width. Each field coil consists of two appropriately wound coils which are energized alternatively in series to produce forward or reverse rotation.
Patent GB-891158-A (GB)
Title: Improvements in photographic colour development
IPC: G03C7/392
Filed: 1958-07-10
Abstract: 5 - (5 - Carbethoxyvaleroyl - 2 - (n - octadecyl) hydroquinone dimethyl ether is prepared by adding aluminium chloride portionwise to 2-n-octadecylhydroquinone dimethyl ether suspended in tetrachloroethane and then adding ethyl 5-chlorocarboxyl valerate all at below -5 DEG C., adding water after reaction, steam distilling, and allowing residual oil to crystallise for subsequent recrystallisation (Preparation A).  5 - (2 : 5 - Dimethoxy - 4 - n - octadecylbenzoyl valeric acid is prepared by dissolving potassium hydroxide in aqueous diethyleneglycol, adding the product of Preparation A, heating to effect reaction, adding aqueous alcohol, making the mixture acid and collecting the resulting solid on a filter (Preparation B).  6 - (2 : 5 - dimethoxy - 4 - n - octadecylphenyl) caproic acid is prepared by reducing the product of B in acetic acid under pressure using palladium on a charcoal catalyst, filtering hot, washing with acetic acid and subsequently filtering again and collecting the filter cake (Preparation C).  5 - (5 - carboxyamyl) - 2 - n - octadecylhydroquinone is prepared by refluxing the product of Preparation C in hydrobromic and acetic acids, cooling and collecting the precipitated solid on a filter. Specifications 507,841, 541,589, 592,676, 651,749, 653,284, 658,826, 680,593, 682,355, 731,301, 748,745 and 861,194 are referred to.
Patent GB-970720-A (GB)
Title: Power controlled winch
IPC: B66D1/14
Filed: 1961-06-20
Abstract: 970,720. Reverse gear; friction clutches. HYSTER CO. June 20, 1961 [June 23, 1960], No. 22298/61. Headings and F2D. [Also in Division B8] A winch drum 7, Fig. 1, is driven in the forward or reverse directions through alternative gear trains 25 or 31 coupled to a pair of fluid pressure operated friction clutches 17, 19, selectively controlled by a single manually-operated valve 41 having four operative positions for braking, free running or driving in either direction. In the first or neutral position, as shown in Fig. 1, the main supply pressure in line 72 from the pump 43 is cut off so that the clutches 17, 19 are disengaged and the drum is braked through the return spring 11 of a brake cylinder 47. In the second position (Fig. 2, not shown), the fluid pressure is supplied to release the brake 9 for free spooling of the drum 7 while the clutches 17, 19 remain disengaged. In the third and fourth positions (Fig. 3, 4, not shown), the clutch 17 or 19 is engaged and the brake released for forward or reverse drive. A separate inching control valve 51 is provided in the pump return circuit for applying a reduced pressure in the brake line 85 for partially releasing the brake 9, a spring 101 and pilot line 103 providing a degree of feel for the operator. Each clutch 17, 19 has provision for cooling and lubricating the friction discs by leakage of oil from the operating pistons 61, through a normally open spring-loaded valve 65 and restriction passages 67. Low pressure oil is normally supplied to the clutches through valve 51 or a reducing valve 81 for maintaining a cooling flow without operation of the clutches. On application of the full clutch operating pressure, the valves 65 automatically close to prevent excessive loss of oil.
Patent GB-651172-A (GB)
Title: Improvements in process of preparing triazenes
Filed: 1948-08-25
Abstract: Symmetrical xenyltriazenes are manufactured by the action of an alkyl nitrite on a xenylamine in solution in a normally liquid solvent selected from benzene, its homologues, its nuclear monohalogen derivatives and their homologues, preferably at 20-60 DEG  C.  The triazene separates as a crystalline precipitate and is separated from the liquid, e.g. by filtration, after which the solvent and the alcohol formed in the reaction may be separated by fractional distillation.  Lists are given of suitable solvents and alkyl nitrites, these being preferably chosen so that the boiling point of the former and of the alcohol corresponding to the latter differ by at least 10 DEG  C.  The preferred nitrite is methyl nitrite, which for best results should be used in excess of the theoretical amount (e.g. in a molar ratio to the xenylamine ranging from 0.75 : 1 to 1.25 : 1), and which may be generated as required from alkali metal nitrite, methyl alcohol and sulphuric acid and the vapour passed into the xenylamine solution.  Examples describe the preparation of 1 : 3-bis-(o- and p-xenyl)-triazenes.  m-Xenylamine is also specified as a starting material.  The Specification as open to inspection under Sect. 91 comprises also the manufacture of symmetrical triazenes from other primary aromatic amines whose mineral acid salts (like those of m- and p-xenylamine) are sparingly soluble in or readily hydrolysed by water, e.g. 2 : 4 - dinitro-, 4 - chloro - 2 - methyl-, 2 : 4- and 3 : 4-dichloro-, 2-nitro-4-methyl-, 3-nitro-2 : 4 : 6-trimethyl-, 2 : 4 : 6-trichloro- and 2 : 6-dibromoaniline, and 41-chloro- and 41-nitro-4-aminodiphenyl.  This subject-matter does not appear in the Specification as accepted.
Patent GB-152985-A (GB)
Title: Improvements in refractory brick construction for locomotive boiler furnaces
IPC: F23C7/02
Filed: 1920-07-28
Abstract: 152,985. Martin, J. C. Oct. 17, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Liquid-fuel furnaces.-In a locomotive fire-box adapted for burning liquid fuel, a hollow refractory brick structure 2, Figs. 1 and 3, formed of one or more units is arranged at the forward end of the fire-box adjacent to the wall 3 and serves for the admission to the fire-box of atomized fuel from the burner 6 and air for combustion entering through the opening controlled by the damper 7. A projection 5 on the wall 3 serves to retain the member 2 in position. The member 2 may coniorm to the shape of the bottom of the fire-box as shown in Fig. 4.
Patent GB-225053-A (GB)
Abstract: 225,053. Sparkes, E., and Stevens, L. R. Nov. 19, 1923. Date indicators.-The names of the months, the names of the days of the week and the numbers from 1 to 31 are marked on separate concentric rings or sections of rings rotatably mounted in a casing A having apertures B, B<1>, B<2>, the rings being turned by friction wheels mounted on the back of the casing. The date indicator may be combined with a clock, as shown, or any other article.
Patent GB-1438894-A (GB)
Title: Rotary tool head for machining round sections
IPC: B23Q11/00
Filed: 1974-05-21
Abstract: 1438894 Rotary tool heads; cooling GFM GES FUR FERTIGUNGSTECHNIK UND MASCHINENBAU AG 21 May 1974 [25 June 1973] 22527/74 Headings B3T and B3B A rotary cutter head comprises a carrier 3 in which a rotary drum 1 is mounted on bearings 2, the drum being driven by way of a gear 4, an end portion 5 of the drum extends beyond the carrier 3 and supports an annular cutter member 8 with inwardly directed cutting element 9. Adjacent the cutter member 8 are provided elements 6 which form fan blades and which are formed to cause an air flow through the drum 1 to extract heat from the drum and carrier during a machining operation.
Patent GB-1428968-A (GB)
Title: Methods of foam filling a tyre of a vehicle wheel and vehicle wheels with tyres so filled
IPC: B29C67/00
Filed: 1972-05-12
Abstract: 1428968 Tyres filled with polyurethane foam ARCHIBALD KENRICK & SONS Ltd 1 May 1973 [12 May 1972] 22537/72 Heading B7C A method of filling a tyre 11 with polyurethane foam 12 comprises fitting the tyre on the rim 10 of a vehicle wheel, injecting liquid ingredients for forming the foam into the tyre through an inlet in the rim 10, closing the inlet, rotating the wheel about its axis with the axis vertical to distribute the ingredients around the tyre interior, and, when foam is escaping through an outlet on the rim diametrically opposite the inlet, closing the outlet. The outlet may be formed by an adaptor 15, e.g. of nylon, screwed into a tapped hole in the rim and having a bore 16 terminating in a screw-threaded socket 17, a shut off valve 18 detachably received in the socket, and a grub screw 21 in a screw-threaded bore 20 opening into the bore 16, whereby when foam begins to escape through the outlet, firstly the valve 18 is shut and then the screw 21 is moved to completely close the outlet after which the valve 18 is removed. The inlet may be provided by an adaptor (13), e.g. of nylon, screwed into a tapped hole in the rim and having a bore with a tapered tapped portion into which a correspondingly tapered screw-threaded plug (14) is receivable to close the inlet (Fig. 2, not shown).
Patent GB-1003527-A (GB)
Title: Process for preparing s-and n-containing compositions
IPC: C10M159/12
Filed: 1962-06-12
Abstract: A lubricating oil composition comprises a major proportion of a mineral lubricating oil and a minor proportion of a sulphur and nitrogen containing polymer made by reacting in any order, at a temperature of at least 80 DEG  C., (a) an alkylene polyamine of the formula H2N-(alkylene NH)nH, where n is an integer, or an equivalent cyclic compound, (b) at least about 0.5 equivalent proportion based on the polyamine of carbon disulphide and (c) at least about one equivalent proportion based on the polyamine of an oil soluble organic dicarboxylic acid or anhyride thereof.  The compositions may also contain metal detergents, e.g. the neutral or basic salts of alkali or alkaline earth metals with oil-soluble sulphonic acids, carboxylic acids or organic phosphorous acids; extreme pressure agents, e.g. chlorinated wax, dibutyl tetrasulphide, benzyl disulphide, di-(chlorobenzyl) sulphide, sulphurized lard oil, dipentene or terpentine and phosphosulphurized turpentine, dipentene, sperm oil, lard oil or methyl oleate and corrosion and oxidation inhibitors, e.g. metal dialkyl phosphorodithioates, metal dialkaryl phosphorodithioates, metal dialkyl carbmates, metal salts of sulphurized alkyl phenols and organic phosphorus acid esters.ALSO:A process for making a sulphur and nitrogen-containing polymer, comprises reacting in any order (a) an alkylene polyamine of the formula H2N-(alkylene-NH)nH, where n is an integer or an equivalent cyclic compound, (b) at least about 0.5 equivalent proportion based on the polyamine of carbon disulphide and (c) at least about one equivalent proportion based on the polyamine of an organic dicarboxylic acid or anhydride thereof, said dicarboxylic acid having a radial of mainly hydrocarbon character to impart oil solubility to the acid, with the proviso that when the radical is aliphatic it should contain at least 12 carbon atoms, the acylation reaction of the amine with the acid being effected at a temperature of at least 80 DEG  C. and the water formed during the reaction being removed. Specified amines are piperazine, mixtures of alkylene amines made by the reaction of alkylene chlorides with ammonia, ethylene diamine, diethylene triamine, triethylene tetramine, propylene diamine, tripropylene tetramine, tetra, ethylene pentamine, trimethylene diamine-pentaethylenetetramine, di-(trimethylene) tri-amine, octamethylene diamine and N-2-amino-ethylpiperazine. Many examples are given.
Patent GB-461081-A (GB)
Title: Improvements relating to couplings for hoses, pipes and the like
IPC: F16L37/10
Filed: 1935-08-09
Abstract: 461,081. Hose &c. couplings. FOGELSTROM, N. O. Aug. 9, 1935, No. 22549. [Class 99 (i)] Two hose &c. coupling parts 1, 2 are locked together with a lug 10 on the part 2 engaging a recess 15 in the part 1 by a resilient split ring 8 which is located in a groove 7 on the part 1 and is rotatable to engage a complementary groove 9 in the said lug 10. The ends 11 of the locking ring 8 are bent over to co-operate with abutments 12, 13 on the part 1 which limit rotation of the ring, and the part 1 is preferably provided with a protecting collar 14. Fluid tightness between the parts may be effected by a U- packing 5.
Patent GB-671427-A (GB)
Title: Improvements in or relating to gas-turbine engines
Inventor: SHERLAW WILLIAM
IPC: F02C7/055
Filed: 1949-08-30
Abstract: 671,427. Gas turbine plant; centrifugal compressors. ROLLS-ROYCE, Ltd. Aug. 29. 1950 [Aug. 30, 1949], No. 22550/49. Classes 110(i) and 110(iii) A gas turbine engine comprising an air compressor having a circumferentially disposed intake through which air flows radially inwards to the axis of the engine and to which the air flows in a direction parallel to the axis of rotation of the engine, has a guard grid lying in the normal path of the air flow to the engine which has one edge spaced away from the periphery of the mouth of the air intake so as to provide an entrance to behind the guard grid, which entrance faces downstream of the flow of air towards the intake. The gas turbine shown has a compressor 10 with a double sided impeller 10a the vanes 14, 15 of which are supplied with air by passages 17, 18, the mouths of which are provided with guard grids. The guard grid for the passage 17 comprises a main frusto-conical grid part 20 of larger apex angle than that of the mouth. The smaller diameter of the grid 20 is connected with the upstream edge 17a of the mouth and the larger diameter is contained in the plane of, .but spaced radially outwards from the downstream edge 17b of the mouth to form an entrance to behind the grid. A short axially extending grid 23 is attached to the downstream edge 17b. The guard grid for the passage 18 comprises two parts 24, 25. The part 24 is cylindrical and extends from the upstream edge 18a of the mouth of the passage 18 to close to the plane of the downstream edge 18b. The part 25 is contained substantially in the plane of the mouth and extends about one third of the way across it. When the grids are not choked with ice, the air enters the passages 17, 18 through the grids but when these grids are choked the air is forced to flow around the downstream edge of the grids 20, 24 and turn through 180 degrees to the downstream facing entrance. The grids 20, 24 may have the downstream edge formed with a radially outwardly directed tip through which a heating fluid such as oil may by passed. The downstream facing entrances may also be provided with guard grids. Means may be provided to de-ice the grids.
Patent GB-585644-A (GB)
Title: Improvements in or relating to the stabilization of ethylene cyanohydrin
Filed: 1944-11-15
Abstract: Ethylene cyanohydrin is stabilised by the addition of a minor but sufficient proportion of an acid to inhibit deterioration of the cyanohydrin, for example, hydrochloric, phosphoric, boric, nitric, sulphuric, carbonic, acetic, acrylic, tannic, oxalic, benzoic or phthalic acid.  The quantity of acid employed is of the order of 0.01 per cent to 1.0 per cent by weight.  Tables are given showing the stabilising effect of a number of the above-mentioned acids. Ethylene cyanohydrin so stabilised may be stored for long periods in steel or glass containers without substantial discolouration or decrease in purity.
Patent GB-1353275-A (GB)
Title: Crystalline bodies and method of growing same from the melt
IPC: C30B15/00
Filed: 1972-05-15
Abstract: 1353275 Epitaxial growth on tubes TYCO LABORATORIES Inc 15 May 1972 [19 May 1971 23 July 1971] 22619/72 Heading B1S [Also in Division F2] Monocrystalline tubes with at least one end internal flange or an end wall are made by epitaxially growing on a preformed monocrystalline tube the flange or end wall by using a die member having an end surface capable of supporting a molten film of the crystalline material. By monocrystalline is meant that the material comprises a single or two or more crystals growing together longitudinally but separated by an angle of less than 4‹. The formation of the flanges or end wall is carried out in the furnace shown in Fig. 1 which is formed by two stationary concentric-spaced quartz tubes 4 and 6, secured in a head 22, and vertically movable horizontal bed 2. Pipes 20 and 24 continuously circulate cooling water through the space between the tubes. The interior of the furnace is connected by pipe 28 to a vacuum pump or source of an inert gas. The furnace is heated by vertically movable R.F. coil 30, and conventional pulling mechanism indicated by 34 moves rod 32 which carries metal holder 36 for the preformed tube 38, at a vertically controlled rate. Located within the furnace is susceptor 40 which supports on rod 44, a crucible 46 which contains melt 48 to be grown onto the tube 38. Referring now to Fig. 2 also, mounted in crucible 46 is a die assembly 56 comprising a cylindrical rod 58 affixed to a supporting disc 60 which rests on shoulder 62 formed in the side wall of the crucible. The rod contains a plurality of axial bores 64 which function as capillaries for the molten material, and radial openings 66 to permit inflow of melt to the bores. The upper end of rod 58 terminates in a horizontal surface 68. In operation, the surface 68 is about 10-40‹ C above the melting point of tube 38 and the tube is lowered into contact with this surface and held there sufficiently long to form liquid film 70 which is connected with melt in the axial bores 64 and once this state is established pulling mechanism draws tube 38 away from surface 58 whereby a tubular monocrystalline flange or end wall is formed on the tube from the film 70 maintained by melt supplied from bores 64. The Specification contains many examples of different flanges and end walls. The material of the tube and extensions is preferably alpha alumina but may be barium titanate, yttrium aluminium garnet or lithium niobate. The tubes may be used in vapour lamps.
Patent GB-306790-A (GB)
Title: Improvements in anti-theft devices for use on motor road vehicles
IPC: B60R25/021
Filed: 1928-08-07
Abstract: 306,790. Turner, C. J.. Aug. 7, 1928. Guarding against unauthorized use.-A casing 1 containing two sliding bolts 4 is secured to the casing 16 of the steering column. On the operation of a key 14 the bolts engage with (a) the hub- 6 of the steering. wheel 7 and (b) a hole in the end 9 of a shaft 10 connected with the ignition circuit, or engine throttle. The handle 11 on the shaft is turned until the bolt can enter the hole, in which position the ignition circuit is broken, or the engine shut off.