baber/WOPTO huggingface dataset:
Patent GB-881175-A (GB)
Title: A method of applying to a metal surface a coating of a plastic
Inventor: LITTLEHALES HERBERT JAMES
IPC: F16J1/01
Filed: 1959-04-22
Abstract: A coating of a plastic is applied to a metal surface by knurling the metal surface, deforming the apices of the resulting projections by pressure so as to cause the projections to assume an undercut form, and then applying the plastic as a coating.  The invention is described as applied to an aluminium alloy piston, part of the cylindrical surface of which is knurled, a hardened roller being then applied to the resulting projections.  It is then placed on an axle, and a piece of steel is fitted within the piston skirt to act as a heat reservoir.  After heating to 330 DEG C., the piston is rolled over a bed of nylon powder, which is then sintered.  A second layer of nylon may be applied to provide a thicker coating than finally required, the excess then being removed by machining.
Patent GB-1488237-A (GB)
Title: Pincushion distortion correction transformer
IPC: H01F21/08
Filed: 1976-04-05
Abstract: 1488237 Transformers STANDEX INTERNATIONAL CORP 5 April 1976 [11 Aug 1975] 13667/76 Heading HIT A transformer for correction of pincushion distortion in a C.R.T., comprises a double-E magnetic core having an input winding 42 on the central leg, a first output winding 34 on one outer leg and a pair of equal output windings 38, 40 connected in series opposition on the other outer leg. The input winding is connected to a source of signals at vertical scanning frequency; the first output winding is connected in series with the C.R.T. horizontal deflection coils, across input terminals supplying a horizontal deflection signal, and the pair of series windings is connected across a capacitor between a pair of vertical deflection coils fed by a vertical deflection signal, (Fig. 1, not shown). The transformer is constructed as a plug-in unit (Fig. 5) and comprises an insulating base 50 provided with pedestal portions for supporting bobbins carrying the windings and terminal pins 52. Spacers provide air-gaps in the core legs. The unit may be encapsulated.
Patent GB-618415-A (GB)
Title: Improvements in or relating to methods for producing penicillin
Filed: 1945-05-31
Abstract: Penicillin is obtained by cultivating Penicillum notatum Westling aerobically under submerged conditions in an aqueous nutrient medium containing a source of assimilable carbohydrate and a hydrolysed proteinaceous material at a temperature of 23 DEG -25 DEG  C. for 2-6 days.  The process is preferably carried out in an aluminium drum fermenter, air being supplied through perforated pipes, carbon sticks, carborundum or glass tubes or plates, stones, cloth bags or ceramic candles; or by stirring, shaking or revolving; or by spraying or spilling the mash into an oxygen containing atmosphere.  The medium may consist of lactose, concentrated corn steeping liquor, magnesium sulphate, potassium dihydrogen phosphate, sodium nitrate and zinc sulphate. Specification 618,416 is referred to.
Patent GB-547788-A (GB)
Title: Improvements in and relating to snap fasteners
IPC: F16B21/08
Filed: 1941-10-24
Abstract: 547,788. Snap - fasteners. UNITED - CARR FASTENER CORPORATION. Oct. 24. 1941, No. 13694. Convention date, Oct. 24, 1940. [Class 44] A fastener particularly for securing covering material 2 to an apertured support 1 comprises head portions 7 connected by resilient limbs 10 bent to provide shoulders adapted to snap into engagement with the edges of the support aperture 6, the preferably flat nose portion 8 having pointed members 13 serving to perforate the covering material, the limbs 10 following into engagement with the support with the head portions 7 bearing on the covering. The device is formed from a single blank with triangular lugs 13 w,hich are bent down so that their points 14 are in abutment, Fig. 4.
Patent GB-934326-A (GB)
Title: N, n-difluorourea and the preparation thereof
IPC: C06B43/00
Filed: 1962-04-10
Abstract: Difluoramine is obtained by heating under reflux a solution of N,N-difluorourea (see Group IV(b)) in methylene chloride, condensing the liberated gases and fractionating.ALSO:The invention comprises N,N-difluorourea, and its preparation by contacting urea with a source of gaseous fluorine at -65 DEG C. to 65 DEG C.  The fluorine may be diluted with an inert gas, e.g. nitrogen, argon or CO2; the urea may also be diluted, e.g. by alkali metal or alkaline earth metal fluorides, or by liquid diluents such as CCl4.
Patent GB-1031348-A (GB)
Title: Housing for compensators in long-distance cables, and method of assembling this housing
IPC: H02G15/14
Filed: 1963-04-08
Abstract: 1,031,348. Repeater housings. FELTEN & GUILLEAUM CARLSWERK A.G. April 8, 1963 [Aug. 17, 1962], No. 13819/63. Heading H2E. A submarine cable compensator housing has a cylindrical body 1 closed at one end (Fig. 1) and an end cover 4, each carrying a stubcable 2 and providing an insulated and sealed passage for the inner conductors thereof, the body and cover being joined by a seam weld after insertion of a selected compensator 5 (Fig. 2, not shown). The seal provided by the weld, and also by the ring 11 (Fig. 1) is checked by sliding an annular pressure container 7 (Fig. 2, not shown), having sealing rings 12, over the weld and pumping in a test fluid at, e.g., 700 atmospheres and then applying an evacuating pump to the test hole 10, Fig. 1, and checking the extracted gas for traces of the test fluid (Fig. 4, not shown). The test hole may then be closed by a conical steel pin 15 (Fig. 5, not shown) surmounted by a straight pin 16 which is welded to the cover 4 at 17.
Patent GB-1339650-A (GB)
Title: Continuous production of propylene chlorohydrin
IPC: C07C29/66
Filed: 1971-05-19
Abstract: 1339650 Propylene chlorohydrin BADISCHE ANILIN- & SODA-FABRIK AG 10 May 1971 [11 May 1970] 13961/71 Heading C2C Propylene chlorohydrin is continuously produced in aqueous solution by reaction of propylene with an aqueous solution of chlorine, the make-up water or the recycled reaction solution or a mixture thereof being loaded with gaseous and/or liquid chlorine in such an amount that that solubility limit is not exceeded, the propylene being metered at 2 to 20 atm. absolute and 10-80‹ C. into the chlorine-laden solution, the reaction mixture being allowed to react to completion in one or more parallel reaction tubes with turbulent flow in the same pressure range with a residence time of not more than ten seconds, the pressure then being released and the by-produets separated if desired, some of the propylene chlorohydrin being withdrawn as product and the remainder being recycled, the process being characterized by the introduction of the chlorine and propylene at a velocity of 2 to 100 m/sec. through one or more nozzles into a mixing zone extending in the direction of flow whose diameter is 1À5 to 50 times the mean outlet diameter of the liquid nozzles and whose length is 3 to 30 times its hydraulic diameter.
Patent GB-293947-A (GB)
Title: An improved airtight lid construction for tanks or canisters and the like
IPC: B65D41/28
Filed: 1927-05-25
Abstract: 293,947. Moss, B., and Walter, H. L. May 25, 1927. Plain plug stoppers; stoppers, screw.-A closure for tanks, canisters, &c. comprises an outer screw socket B for a screw cap A or plug bearing on a resilient washer G, and an inner socket E for a press lid C, both closures making tight joints with their sockets so that either will secure the contents of the tank &c. if the other should fail. A spring F secured to the inner lid C is engaged by the screw cap A to press down the inner lid which, together with the socket E, is of tapering formation. A handle H for removing the inner lid is disposed towards the edge thereof. As shown, the socket E is integral with the socket B, but it may be formed independently thereof by turning inwards the material of the top of the tank &c.
Patent GB-118638-A (GB)
Title: Improvements in Chain Tread Tractors and like Vehicles.
IPC: B62D55/10
Filed: 1917-12-14
Abstract: 118,638. Cleveland Tractor Co., (Assignees of White, R, H.). Dec. 20, 1916, [Convention date]. Endless-track. vehicles.-The main frame 10 is carried at the rear upon the rear axle, to which open track frames 20 are pivoted. The track frames are connected at the front by shackles 18 to a transverse leaf spring 16 which is centrally pivoted to a transverse member 10<c> of the main frame. The track frames are fitted with loadsupporting rollers, and the vehicle is steered as described in Specification 112,266.
Patent GB-1497209-A (GB)
Title: Switching circuit for static inverter
IPC: H02M7/538
Filed: 1976-04-07
Abstract: 1497209 Transistor inverter circuits AMF Inc 7 April 1976 [25 July 1975] 14077/76 Heading H2F [Also in Division H3] A switching circuit for use in a static inverter comprises a plurality of transistors Q 1 , Q 2  connected in Darlington configuration to act as driver for at least one further transistor Q 3 , the or each further transistor switching D.C. to one primary winding p 2  of a transformer whilst the Darlington transistors switch the D.C. into a further primary winding p 1  of the transformer. As described, in order to compensate for the additional Vbe in series with winding p 1 , that winding is given fewer turns than p 2 , p n ; 11 and 12 turns being suggested. In the inverter shown, primary windings p 1 , p 2  p n  and p 1 <SP>1</SP>, p 2 <SP>1</SP>, p n <SP>1</SP> are driven in push-pull by the two sets of transistors under control of the logic circuit 12, 14, 21 ... 24 driven by double frequency pulses, so as to produce the required A.C. from the secondary S.
Patent GB-835300-A (GB)
Title: Improvements in textile fibre drafting apparatus
Inventor: NOGUERA JOSEPH
IPC: D01H5/26
Filed: 1957-05-02
Abstract: 835,300. Fibre drafting apparatus. CASABLANCAS HIGH DRAFT CO. Ltd. April 17, 1958 [May 2, 1957], No. 14080/57. Classes 120(2) and 120(3) Double apron drafting apparatus with separate upper and lower cradles has the forward end of the upper cradle and a broad lower tensor adapted to interengage to determine the maximum tensor spacing. The lower tensor is both adjustable and interchangeable according to fibre qualities. The lower tensor 10 extends well back towards the apron roller 4 and as convex to urge the lower apron 8 against the upper apron 7. Lugs 19 of the tensor 10 pass into recesses in the lower cradle 12 and flaps 20 on the tensor 10 rest on the cradle 12 and are engaged by hooks 11b of the upper cradle 11. To accommodate more than one tensor spacing with one lower tensor 10, the flaps 20 have stepped edges 20b, 20c against which the hooks 11b abut and by sliding the tensor 10 the location of the hooks 11b is altered. Tensors of different curvatures or flap dimensions may be finished in different colours as well as having identifying numbers on the flaps.
Patent GB-789234-A (GB)
Title: Fuel injection apparatus
IPC: F02M59/46
Filed: 1955-05-16
Abstract: 789,234. Fuel injection pumps. BENDIX AVIATION CORPORATION. May 16, 1955 [June 14, 1954], No. 14082/55. Class 102(1). The delivery valve 24 of a fuel injection pump comprises a seat 30, flutes 32, a fixed retraction collar 35 and a collar 33 having flats 34 or holes therethrough, forming passages 38 for the flow of fuel to the nozzles. The flow area of the passages 38 is greater than but not more than fourteen times the area of the nozzle flow area. The volume of the portion 35 within the guide bore when the valve is seated is from 20 per cent to 35 per cent of the total volume of the portion of the valve which is withdrawn from the delivery line when the valve moves from against the stop 36 to seated position. The stop 36 prevents the collar 33 leaving the bore.
Patent GB-1128981-A (GB)
Title: Improvements in or relating to columnar supports for rotary machines
Inventor: CROOK ALFRED WILLIAM
IPC: F16M7/00
Filed: 1965-04-02
Abstract: 1,128,981. Machinery beds; resilient supports. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 31 March, 1966 [2 April, 1965], No. 14187/65. Headings F2S and F2X. A columnar support for a rotary machine, such as a turbine-driven alternator, comprises a plurality of vertical columns at least some of which have their natural frequency lowered by the use of a horizontal metal diaphragm 47 to transmit the weight of the column 25 to a rigid support 55. Each column may be in the form of a solid steel rod secured at its upper end by gusset plates and fillet welds to a rectangular metal plate and secured at its lower end in a similar manner to a circular plate 39 connected by eight studs 45 to a central zone of the diaphragm. The outer peripheral zone of the diaphragm rests on the support 55 and is secured to it by a further series of studs 59. A pair of blocks having parallel upper and lower faces and inclined mating surfaces may be provided beneath the support 55 to provide height adjustment. Diaphragms may be fitted at the top and bottom of a column or a unit including a number of diaphragms may be employed. Rectangular diaphragms supported at two opposite edges only to reduce resistance to tilting may also be employed. The support may include two parallel rows of four vertical columns to support a steam turbine having a high pressure cylinder, a first intermediate pressure cylinder and a double-flow second intermediate pressure cylinder. A unit directly supported by steel columns from a concrete foundation and including three low pressure cylinders and four flanking banks of condenser tubes in a pressure-tight casing also forms part of the installation. A support including columns such as those shown at 25 may also be used to support a generator with its exciter, driving motor and gear-box.
Patent GB-693172-A (GB)
Title: Improvements in the production of polymer intermediates from hydrazine and dicarboxylic acids and the production of polymers therefrom
Inventor: FISHER JAMES WOTHERSPOON
IPC: C08G73/08
Filed: 1950-06-07
Abstract: A polymer intermediate convertible on heating with hydrazine to give a poly-amino-triazole as described in Specifications 612,609 and 613,020 is made by heating at a temperature not exceeding 170 DEG  C. a polymethylene dicarboxylic acid having six or more carbon atoms with from 1 to 2, preferably from 1 to 1.3, mols. hydrazine per mol. of acid.  The heating is at atmospheric pressure, water being allowed to escape, and is continued until the mixture solidifies.  The resulting wet mealy granular material is dried on trays at about 80 DEG  C.  The nitrogen contents of the intermediates are between those for the hydrazine salts of the acids and those for the polyhydrazides.  In examples, approximately equimolar quantities of 60 per cent aqueous hydrazine and sebacic acid, adpic acid, pimelic acid, and suberic acid were heated at various temperatures below 170 DEG  C. depending on the melting-point of the acid, to give intermediates which were then heated in an autoclave with sufficient hydrazine to bring the total hydrazine reacted above two mols. per mol. of acid to give the final polymer.  The Specification also refers to the use of azelaic, nona- and deca-methylene dicarboxylic and brassylic acids.  The Provisional Specification refers to the use of diphenic, phenylene 1.4 diacetic and diglycollic acids.
Patent GB-122147-A (GB)
Title: Improvement in Nut Locks.
Inventor: BAUGHN SAMUEL CLAIBORNE
IPC: F16B39/12
Filed: 1918-09-02
Abstract: 122,147. Baughn, S. C. April 15, 1918, [Convention date]. Locking nuts. - A lock-nut 3, adapted to be screwed down on the outer side of the main nut, is provided with oppositely arranged pointed ribs 7 inclined both longitudinally and transversely to form projecting edges 17 adapted to grip the nut.
Patent GB-300477-A (GB)
Title: An improved machine for making transparent paper or sheet cellulose from aqueous cellulose solutions
IPC: B29D7/00
Filed: 1928-05-15
Abstract: 300,477. Ruzicka, C. May 15, 1928. Apparatus for making films.-A machine for making transparent films from viscose or cellulose dissolved in cuprammonium solutions comprises, as shown, a pipe a<1> for supplying the cellulose solution under pressure to a wedge-shaped box a, fitted in its bottom with a slotted opening adjustable in width and length and mounted over or within a vat b which contains the coagulating solution b<1>, the level of which is kept constant in known manner, so that it is either above or just below the slot in box a; a plurality of horizontal rollers c under and over which the film x passes during its passage through the coagulating bath; guide rollers c<2> to guide the film from the bath to a plurality of rollers c<3> mounted to revolve above the bath b and over and under which the film passes, whilst it is being sprayed on both sides with coagulating solution from pipes h; intermediate guide rollers c<2> which allow excess of the coagulating medium to be removed from the full coagulated film; plurality of rollers e<2> mounted above a receptacle d and spray pipes i arranged to spray the film on both sides with water or other suitable fluid in order to remove the last traces of coagulating liquid from the film before it passes by means of guide rollers c<2> to drying cylinders f and thence over the take off roller g to the reeling drum. Auxiliary rollers may be suitably arranged to smooth the film during its passage over the rollers c<3> and e<2>. Some or all of the rollers may be geared or driven together.
Patent GB-1091702-A (GB)
Title: Improvements in or relating to electrolytic cells
Inventor: GOLDSMITH PHILIP
IPC: G01N27/42
Filed: 1965-04-05
Abstract: 1,091,702. Electrolytic cells. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. April 5, 1966 [April 5, 1965], No. 14452/65. Addition to 1, 032, 563. Heading G1N. In an electrolytic cell for the measurement of water vapour content of a gas of the type described in Specification 1, 032, 563 comprising two electrodes supported in the form of a double start helix on a silica cylinder and coated with a hygroscopic electrolytic mixture of glycerine and phosphoric acid, the electrodes are provided by coating the cylinder with platinum, gold, silver or rhodium by vacuum sputtering or electric plating and subsequently grinding away unwanted metal. Alternatively, the electrode material may be applied in the form of strips using masking or may be painted on the cylinder. The cell is mounted within a stainless steel tube through which the gas to be tested is passed.
Patent GB-1504051-A (GB)
Title: Method and apparatus for cutting concrete on the arcuate surface of an object particularly for cutting concrete coated pipes
IPC: B28B19/00
Filed: 1975-04-09
Abstract: 1504051 After treatment of concrete coatings BREDERO PRICE BV 9 April 1975 [5 Dec 1974] 14484/75 Heading B2E [Also in Division B5] A groove is cut in an uncured concrete coating on an arcuate surface of an object, by a water jet directed tangentially to the surface as the surface and jet are relatively rotated. As shown, a preformed pipe 10 (Figure 2) is rotated and moved longitudinally while coated with concrete applied by a brush 32 and underlayed by asphaltic mastic, butyl rubber or polyethylene. The concrete includes iron ore aggregate and sprayed water, and embeds a plurality of reinforcing cages (see Figure 1, not reproduced) and chicken wire. An impervious plastics sheet; or chicken wire, can be wrapped about the concrete as it is layed, and then removed after partial curing (Specification 1504052) for cutting. Preferably immediately after coating, the pipe is supported on, and rotated by, rollers 42 (Figure 4) during cutting by a plurality of nozzles 44 adjusted so as to direct water jets 60, fed from a common manifold 48, tangentially to the preformed pipe.
Patent GB-182638-A (GB)
Title: Improvements in brake mechanism for vehicles
IPC: F16D49/16
Filed: 1921-05-25
Abstract: 182,638. Brockhouse, J. T. May 25, 1921 Hand actuation.-In a brake in which the block 3 is actuated by a screw-and-nut mechanism 7, 9, the collar 13 that engages the flange 10 on the nut to keep the nut in place, is formed in two parts in order to facilitate repair should either the nut or the collar break.
Patent GB-1073824-A (GB)
Title: Separation of a 4:4-bipyridylium salt from a mixture containing it
Inventor: COLCHESTER JOHN EDWARD
IPC: C07C65/40
Filed: 1965-04-06
Abstract: A 4,41-bipyridylium salt is separated from a solution containing it by a method comprising treating the solution with amsonic acid (4,41-diamino - stilbene - 2,21 - disulphonic acid) so that the 4,41-bipyridylium salt of amsonic acid is precipitated.  The amsonic acid salt of 4,41-bipyridyl is claimed per se.  The process is applicable to the separation of salts of 4,41-bipyridyl and also of N,N1-dialkyl-4,41-bipyridyls. The amsonic acid salts may be separated and treated with an aqueous solution of an acid, e.g. sulphuric, hydrochloric, phosphoric, oxalic, tartaric or citric acid, to give the corresponding salts.
Patent GB-833052-A (GB)
Title: Cold separation of gas mixtures
IPC: C07C7/04
Filed: 1957-05-08
Abstract: 833,052. Cold separation of gas mixtures. KELLOGG CO., M. W. May 8, 1957 [May 21, 1956], No. 14635/57. Class 8(2). Separation of a gas mixture into low and high boiling point fractions, e.g. a 70 : 30 methanehydrogen mixture and a mixture of C 2  and C 3  hydrocarbons is effected in a column 12 from the lowest zone 19 of which the high boiling liquid fraction leaves through a duct 29 and from a higher zone 46 the methane-hydrogen gas mixture leaves through a duct 49 is partially condensed in exchangers 51, 52 and the condensed portion is expanded isenthalpically in a throttling valve 75 and the so cooled gas serves to cool and partially condense in the heat exchangers 51, 52, unexpanded methanehydrogen gas leaving the zone 46 through the duct 49; the so condensed unexpanded mixture being returned to a separation zone 56 through ducts 57, 58. Gas mixture also passes from zone 56 through a duct 62 and after being warmed in a heat exchanger 65 is expanded and partly liquefied in a valve 63. The liquefied portion is refracted in a drum 64 and the gaseous portion in a duct 68 traverses heat exchanger 51. The feed gas is partially separated in a zone 13 from near the base of which a liquid fraction leaves through a duct 14 and after being vaporized in propane-heated exchanger 16 is fed through a duct 20 to the zone 19. A similar exchanger 24 is located near the base of zone 19 whereas between zones 13, 36 and 36, 46 are located ethylene-cooled exchangers 32, 42 which serve to partially condense gaseous mixtures passing from the upper parts of the zones 13, 36 to the lower parts of zones 36, 46.
Patent GB-553990-A (GB)
Title: Improvements in or relating to cartridge belt filling machines
IPC: F42B39/10
Filed: 1941-11-14
Abstract: 553,990. Machine-gun cartridge-belts. JACKSON, E. A. Nov. 14, 1941, No. 14668. [Class 92 (ii)] In cartridge belt filling machines of the kind in which a revolving tappet carrier 16 contains peripherally arranged parallel tappets 17 which are axially movable by a fixed cam 18 into engagement with cartridges traversed through the machine by a belt feeding and locating device 32, 42, 31, each tappet encloses a spring 33 for maintaining it in contact with the cam. The spring is lodged in an axial cavity in the tappet and abuts against a transverse pin 34 in the block 16. The front end of the tappet engaging the cartridge may be axially in alignment with the tappet, but is preferably inwardly offset in radial direction. The position of the cam 18 may be adjusted on the shaft 13 by means of the threaded sleeve 19, but when reduction gearing is provided between the crank 29 and shaft 13, a similar adjustment is provided at the other end of the machine for the shaft 14 and associated belt-traversing gear mounted thereon. Pivoted belt guides are provided on each side of the machine, and a pivoted central cover 46 for the gearing 31, 32, 42. Specification 533,424 is referred to.