baber/WOPTO huggingface dataset:
Patent GB-710958-A (GB)
Title: Improvements in or relating to steel rotors for gas turbines
IPC: B23P15/02
Filed: 1951-08-17
Abstract: 710,958. Elastic-fluid turbines. MASCHINENFABRIK AUGSBURG-NURNBERG AKT.-GES. Aug. 17, 1951 [Jan. 20, 1951], No. 19481/51. Class 110(3) [Also in Group XXII] A process for the production of a heat barrier layer on the surface of a steel rotor of a gas turbine comprises forming grooves in that part of the rotor surface exposed to the hot gaseous flow and then at least partially closing said grooves. The rotor disc, Fig. 2, has grooves 4 defined by walls 5 which are then turned over to, form cavities 6. The cavities either contain a gas layer or cooling air is circulated therethrough. In a modification, Fig. 3, each wall has two extensions 8, 9 which are bent over in opposite directions to form cavities 10 with the extensions of the adjacent walls. The cavities extend transverse or parallel to the longitudinal axis of the rotor. In a further modification, the rotor disc has transverse and longitudinal groves which form studs thereon. The studs have a heat resisting coating of ceramic material or enamel. The grooves are narrowed down to small gaps and may be filled with a heat-resistant insulating layer.
Patent GB-491345-A (GB)
Title: Improvements relating to apparatus for clarifying liquors containing suspended and flocculent matter, such as sugar juices, and similar liquors
IPC: C13B20/00
Filed: 1937-07-14
Abstract: 491,345. Purifying sugar solutions. MIRRLEES WATSON CO., Ltd., and BACH, N. B. July 14, 1937, No. 19485. [Class 127] [Also in Group I] Apparatus for clarifying sugar juices comprises a tank 4 to which the juice is supplied from a tank 1 which is constructed to maintain a constant level of liquid in the tank 4. The tank 1 is provided with an inlet 2 below which is a perforated baffle 7 and in the wall of the tank is an opening 5 situated at the level of the liquid 6 in the tank 4. A hood 9 directs the liquid entering the tank 1 away from the opening 5.
Patent GB-293426-A (GB)
Title: Improvements in and relating to variable radio transformers
IPC: H01F29/02
Filed: 1928-07-05
Abstract: 293,426. British Thomson-Houston Co., Ltd., (Assignees of Brand, F. F.). July 6, 1927, [Convention date]. Regulating transformers.-Relates to a method of varying the effective number of secondary turns under conditions in which the primary circuit 20 remains energized although the load circuit is disconnected, and consists in connecting across a break in secondary winding 16 adjacent to which the tap connections are made, a byepass such as a condenser 21 so as to avoid sparking at the contacts of the tapping switch 19 caused by charging currents due to the capacity of the secondary winding, leads, terminals &c. Fig. 1 shows the invention applied to a transformer in which the tap connections are all located on one half of the secondary winding, the condenser being connected to the middle tapping and to the switch arm. Fig. 2 shows a modification in which tap connections are arranged on both halves of the secondary, the condenser being connected to the middle tapping of each set.
Patent GB-1576911-A (GB)
Title: Foam-like pressure sensitive adhesive tape
IPC: C09J7/38
Filed: 1978-05-15
Abstract: In a pressure-sensitive adhesive strip whose adhesive layer is a void-free matrix of a pressure-sensitive adhesive and glass microspheres which has the appearance of an adhesive strip with a foam backing, the adhesive layer is perfectly elastic under short-term loads, but is less elastic under prolonged loads and adapts well and adheres well to rough and uneven surfaces.
Patent GB-888278-A (GB)
Title: Improvements in or relating to inflators for balloons, air-beds or the like
Inventor: MELSHER FRANCIS GEORGE
IPC: F16K15/20
Filed: 1959-06-09
Abstract: 888,278. Inflators. PATON, CALVERT & CO. Ltd. June 9, 1960 [June 9, 1959], No. 19653/59. Class 8(1). [Also in Group XXIX] A valve arrangement, particularly for a manually-operable inflator 11, 12, comprises a tubular body 17 partially defining a chamber containing a discharge valve member 21 having an integral flap 20 constituting an inlet valve member, the body being mounted in an aperture formed in an end plate 14 of the container and having at least one aperture 16 closable by the flap. As shown in Fig. 1, the body 17, which may be of plastic material, is retained in the plate 14 by means of a plug 22 which also defines, together with the body, the chamber for the discharge valve 21 of flexible plastic material. The walls 11, 12 of the container may be of cardboard or plastic and are telescoped one within the other. Projections 19a are provided on the body 17 so as to permit the flow of air around the valve member 21 when discharged from the inflater ; alternatively, the bosses may by formed on the valve member 21. In a modification, Fig. 4, the projections 19a are dispensed with and flow through the discharge valve is provided by apertures 22b in the plug 22 and an aperture 21a in the valve member 21. Two, three, or four apertures may be provided in the plug. The flap may extend to the full diameter of the container and may have a continuous outer periphery or may have an interrupted periphery in order to only cover the ports 16. In a further modification, instead of having a nozzle 18 formed on the body 17, a socket may by formed therein for receiving a discharge nozzle.
Patent GB-1392806-A (GB)
Title: Washing machines
IPC: D06F17/04
Filed: 1971-04-27
Abstract: 1392806 Washing machines HOOVER LTD 27 April 1972 [27 April 1971] 19658/72 Divided out of 1392805 Heading D1A A reversible motor 24 is provided in a cabinet type washing and drying apparatus, the motor when rotating in a first sense actuating a pump 21 which recirculates washing and rinsing liquid and in the second sequence actuates a fan 45 which circulates drying air through the cabinet and preferably also actuates a drain pump 26. The pump 21 draws water from a sump 28 with a heater 29 and supplies it to a valve 32 which on intermittent operation of the pump alternately supplies a lower spray bar 13 and an upper spray bar 12, the spray bars being rotated by reaction jets 61. Alternate 6 second periods of operation and stopping of the motor for draining is suggested Alternatively the 'on' periods may be of 8 seconds and the 'off' periods 6 seconds. The fan 45 is driven through a one-way clutch 40 and may be secured to the lower spray bar when a guard screen 14 is provided above the spray bar. Alternatively (Fig 11) the spray bar 113, is loose on the fan shaft 144 and has feet 116 which rest on a screen 114 when the fan is operating. When water is supplied to the lower spray bar 113 through the hollow fan hub the bar is lifted from the screen by the water pressure and is rotated by the reaction jets. An alternative lower spray bar; Fig 9, has integral fan blades 62. Drying air is drawn by the fan down past a heater 49 and through the cabinet and discharged through a vent or recirculated through one or more passages 47 which may have condensing water supplied. The upper spray bar has slots 52 (Fig 4) for the air and jet nozzles 53 which cause rotation of the spray bar and better distribution of the air flow. A thermostat may be used to sense that the clothing is sufficiently dry to stop the drying cycle or start a cooling cycle. A plurality of thermostats for different articles may be provided and may be placed in a cuff for example or disposed at the bottom of the cabinet.
Patent GB-1058904-A (GB)
Title: Aromatic esters and their preparation
Inventor: FORSTER CHRISTOPHER FREEN
IPC: C07C69/92
Filed: 1963-05-17
Abstract: The diphenyl (phenoxy)-benzoates are useful as lubricantsALSO:The invention comprises diphenyl-(phenoxy)-benzoates. The novel compounds may be made by reacting one or more phenyl-substituted alkali metal, preferably sodium or potassium, phenates with one or more phenoxy benzoyl halides, preferably the chloride or bromide. The phenoxy benzoyl halide may be made by the action of thionyl halide on phenoxy benzoic acid which in turn may be made by reacting a methyl-substituted alkali metal phenate with a phenyl halide in the presence of copper or copper bronze and oxidizing the phenoxy toluene so formed to phenoxy benzoic acid, e.g. by the action of aqueous permanganate.
Patent GB-957337-A (GB)
Title: Driving shafts
Inventor: EVANS FRASER MACKIE
IPC: F16C3/02
Filed: 1961-06-01
Abstract: 957,337. Shafts; couplings. C.A.V. Ltd. May 23, 1962 [June 1, 1961], No. 19770/61. Heading F2U. A shaft 5 connecting a driving pinion 9 to the rotor 10 of a fuel injection pump has external splines 7, 8 engaging internal splines of a sleeve 9a of the pinion and of the rotor respectively, and has a bore 6 extending throughout its length in which a torsion bar 14 is disposed. The torsion bar 14 is secured at one end to a disc 15 having peripheral teeth engaging the splines of the pinion sleeve 9a and at its opposite end is of non-circular section engaging a similarly sectioned flared recess 13 in a plug 11 which has a projecting dog engaging a complementary slot 12 in the rotor 10. During assembly the torsion bar 14 is stressed in such a direction that it will urge the plug 11 angularly in the opposite direction to that in which it is intended the pump rotor 10 should be driven. As a result the co-operating splines at each end of the shaft are held with their driving flanks in engagement at all times. Both sets of splines may be asymmetrical so that the shaft 5 can only be engaged with the rotor and the pinion at one angular disposition to ensure the correct timing relationship between the pump and the engine. The disc 15 is similarly formed and bears indicia indicating the direction in which the torsion bar is to be stressed to accord with the direction of rotation of the engine. The flared entrance to the recess 13 in the plug 11 is of such a shape that as the torsion bar 14 is introduced with its other end held against rotation the required torsional stress will automatically be applied to the bar. In a modification the disc 15 is integral with the torsion bar which is in the form of a strip.
Patent GB-131589-A (GB)
Title: Improvements in the process of manufacturing fermentative preparations
Inventor: GROLL MATHILDE
IPC: C12N1/04
Filed: 1919-08-12
Abstract: 131,589. Groll, M. Dec. 13, 1917, [Convention date]. Ferments.-Bacteria and other ferments, such as Yoghourt bacilli, are preserved by adding a culture in whey or whey liquor to fondant sugar and coating the preparations with sugar, chocolate, or gelatine, or dissolving it and keeping it in airtight vessels. The whey is prepared by adding to sweet or sour whole milk or skimmed milk an acid substance such as lemon juice or vinegar and heating in an autoclave to 130‹ C. The sweet whey obtained may be used as the culture medium, or may be filtered to obtain a whey liquor by removing the remaining casein and creamy substance, in either case a gelatinous substance such as agar-agar being added. The culture grown for 18 to 24 hours at a constant temperature of about 40‹ C. is added to fondant sugar which has been prepared bv boiling a solution of sugar in water, to which vinegar, lemon juice, or tartaric acid has been added, at a temperature of 115‹ C. and cooling to 50‹ C. The product is worked to a doughy mass, prepared in any desired shape and coated with sugar, chocolate, or gela. tine, or may be dissolved and kept in airtight phials.
Patent GB-403323-A (GB)
Title: Improvements in and relating to electric lamps and like devices
IPC: H01K1/46
Filed: 1933-07-13
Abstract: 403,323. Electric incandescent lamp caps. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Strickland, R. F. ; 2227, Noble Road, Cleveland Heights, Ohio, U.S.A.) July 13, 1933, No. 19849. Convention date July 13, 1932. [Class 39 (ii).] The base of an electric lamp or like device comprises a cylindrical part 11 having ridges 12 carrying terminals 13. The base is formed of moulded insulating material such as artificial resins. The bulb is placed in a rubber support 21 and a mould 23 is placed round the protruding lead wires, and the moulding material is forced into the mould by a plunger 25. In this construction the lead wires themselves form the terminals ; in Fig. 6 conducting surfaces 26 are provided on the ridges, the lead wires being in contact therewith and may be soldered thereto. The wires may also be held in a turned over lip 27 of the surface 26, Fig. 11. The lamp fits into a cylindrical socket having grooves containing terminals corresponding to the ridges on the base.
Patent GB-324887-A (GB)
Title: Lubricating device for engine pistons
IPC: F16J1/08
Filed: 1929-06-28
Abstract: 324,887. Kowarick, F. Oct. 29, 1928, [Convention date]. Addition to 304,187. Force-feed lubricating. - The piston lubricating device according to the parent Specification is modified by fitting an inwardly-opening spring-loaded non-return valve e in a connection f between the casing a, in which the extension b of the piston rod c works, and an oil reservoir g, the connection f being arranged below the outer limit of the stroke of the extension b, whereby the casing a is automatically replenished with oil. The casing a is also fitted with a spring-loaded relief valve d.
Patent GB-703547-A (GB)
Title: Improvements in and relating to hydraulic steering gear for ships
IPC: B63H25/28
Filed: 1950-08-10
Abstract: 703,547. Ships' steering gear. DONKIN & CO., Ltd., PAULIN, W. S., and STOREY, E. July 30, 1951 [Aug. 10, 1950], No. 19878/50. Class 114 A hydraulic steering system which may be operated by power or hand has a single variablestroke pump 30 driven by the bridge hand-wheel 33 and a change-over cock for selecting the type of operation, whereby during power steering the pump stroke is fixed and it is connected through pipes 28, 29 with ram cylinders 26, 27 controlling the operation of a power driven pump 21 supplying the power cylinders 15, 16 of a ram 13 connected to the rudder 10, and during hand steering the pump 30 is connected directly, through pipes 17, 18, with the power cylinders and the latter are connected with the stroke varying mechanism so that the pump stroke is reduced as the torque required to turn the rudder increases. The operation of the change-over cock from hand to power and the fixing of the stroke may be effected by a common lever or alternatively separate levers such as 45 may be used.
Patent GB-477623-A (GB)
Title: Improvements in or relating to acoustic rectifying devices and to alternating current signalling systems incorporating such devices
IPC: H04R17/00
Filed: 1936-07-17
Abstract: 477,623. Piezo electric sound - reproducers. STANDARD TELEPHONES & CABLES, Ltd. July 17, 1936, No. 19888. Convention date, Aug. 1, 1935. [Class 40 (iv)] [Also in Group XL] A modulated electrical carrier wave is converted into a mechanical vibration having a corresponding carrier frequency and modulation by a piezo-electric plate which is tuned to the frequency of the carrier wave (or to a frequency derived therefrom), and produces (in the surrounding air) sound waves corresponding to the voice currents with which the carrier wave is modulated. As shown in Fig. 1, a piezo-electric plate 8 is clamped between metal strips 6 attached to an arm 3 slidable on a stand 1. The plate is dimensioned to have a resonant frequency corresponding to the carrier frequency and is coated on its vibrating surfaces with a thin layer of silver or with layers of silver and platinum. The selective characteristic of the plate may be slightly broadened by mechanical damping introduced by the clamping effect of the spring clips 6 and /or by means of the series resistance 14 and the shunt resistance 15. In a modified arrangement, Fig. 3, the piezo-electric plate 16, coated as described in connection with the plate 1, is clamped at its corners by two metallic frame members one of which is indicated at 17, arranged relative to the plate 16 to provide gaps 27. Receiving circuit arrangements, described in connection with Figs. 5, 6 (not shown) include a superheterodyne arrangement by which a piezo-electric plate of relatively low frequency may be used with carrier waves of different frequencies. The resonance band of the piezo-electric plate may be broadened by an inductance in place of the resistances 14, 15 of Figs. 1, 3, in which connection U.S.A. Specification 1,921,035 is referred to.
Patent GB-664459-A (GB)
Title: Improvements in devices for use in forming foam
IPC: A45D19/00
Filed: 1949-07-28
Abstract: 664,459. Making foam. SANDOR, F. M. A., (Representative of SANDOR N.). July 27, 1950. [July 28, 1949] No. 19894/49. Class 47 (ii). [Also in Group VI] A device for making foam by aerating a saponin &c. solution comprises a wooden plate 1 having its pores at 45 degrees to its faces 1a, 1b, an expansible rubber envelope 2 enclosing one face 1b and secured to the periphery 1c of the plate, and means for supplying air to the envelope consisting of a bulb and tube 4. A rubber suction cup 7 is provided to attach the device to, for example, the bottom of a liquid container provided at the top with an outlet pipe and nozzle. A slotted metal cover 8 may be provided.
Patent GB-147936-A (GB)
Title: Improvements in submarine sound producing devices
IPC: G10K13/00
Filed: 1920-07-09
Abstract: 147,936. Signal Ges. June 14, 1915, [Convention date]. Subaqueous audible signals.-When a transmitter diaphragm E is vibrated by an exciter having a frequency much higher than the fundamental frequency of the diaphragm, the latter generally vibrates in an overtone mode, with a nodal circle. According to the present invention this is prevented by stiffening the portion of the diaphragm adjacent to the nodal circle, either by an annular thickening of the diaphragm or by means of radial ribs R. The exciter consists of a divided electromagnet. the two halves of which are fixed to masses C<1>, C<2> connected by elastic rods D, forming a system having the desired natural frequency of vibration. The invention is applicable to diaphragms of square or other non-circular shape.
Patent GB-607875-A (GB)
Title: Improvements in projection screens
IPC: G03B21/60
Filed: 1945-08-03
Abstract: 607,875. Projection screens. RENISON, M. A., and MITCHELL, C. Aug. 3, 1945, Nos. 20065/45 and 6284/46. [Class 97 (i)] A projection screen comprises at least a translucent front screen surface composed of a close mesh fine thread woven material that is substantially white, a second screen surface composed of a woven material of more open mesh than, and disposed closely adjacent to the front screen surface, a third screen surface also composed of a woven material of more open mesh and coarser thread than the front screen surface and spaced from the second surface by a distance greater than that between the front and second surfaces, and a white or silvered final screen surface spaced from the third screen surface by a distance at least as great as that between the latter and the second screen surface. In a small screen assembly the first screen may be of ninon, voile or crepe-de-chine with a second screen of cheese cloth, butter muslin or bandage cloth and a third screen of the same material as the second or of scrim or light-weight buckram. The final screen may be the normal type of front projection screen. If desired, the other screens may be built as a unit for use with an existing screen. The first screen in this combination may be tinted pink or yellow and the second and third screens may be lighter and darker shades of green, yellow, red or blue respectively, or vice versa. The third screen, if not red, may be replaced by a red screen, or such a screen may be inserted between the third and final screens. In larger screen combinations rather heavier materials of darker colours may be used for the front and intermediate screens, such silk gauze for the first, grit gauze or silk bolting cloth for the second and butter muslin or bandage cloth for the remainder. Suitable distances between screens are quoted in the Specification, being smaller for larger screens with greater illumination. The Figure shows a method of supporting the screens. The intermediate screens 12, 13, 14 are laced at 10 to strips 5 carrying eyes 6 through which pass screwed rods 7 on which they may be located by nuts 8. The front and final screens 15, 16 are laced at 17 to rings 18 secured to the main tubular framework, tubular stretcher members 20 being provided to ensure a plane surface for the front screen. A mask 21 for the border of the screen is provided. The screens may be made, instead of woven material, from transparent material carrying grids of fine lines. Additional screens of area less than the whole screen may be introduced for special purposes.
Patent GB-1280954-A (GB)
Title: Balancing apparatus for a rotating element
IPC: G01M1/36
Filed: 1970-04-27
Abstract: 1280954 Balancing grinding wheels NORTON CO 27 April 1970 [28 April 1969] 20100/70 Heading B3D [Also in Division F2] A balancing machine (e.g. for a grinding wheel 21) includes a first housing 30 fixed to the member to be balanced and rotatably supporting first and second masses 43 with eccentric centroids within the housing 30 normally rotating therewith, and a second housing 50 maintained non- rotating (e.g. by pins 56) and supporting control members 61, 81 each independently operable to adjust the angular position of one of the masses 43 about the common axis of rotation. Each member 61, 81 may be able to turn a screw 62, 82 to slide axially a non-rotating block 63, 83 and a helical cam 71, 91 rotating with the housing 30, and engaging a cam follower 46 to thereby adjust one of the masses 43 through a range of 360 degrees relative to the housing 30.
Patent GB-775869-A (GB)
Title: Improvements in or relating to arrangements of rails mounted longitudinally on girders or the like and to fastening clips employed in such arrangements
IPC: E01B9/30
Filed: 1952-08-11
Abstract: 775,869. Fastening railway rails. LEWIS, E. M. Nov. 11, 1953 [Aug. 11, 1952], No. 20152/52. Class 104 (2). A rail is secured longitudinally on a girder 2 by a plurality of spring clips 3 arranged at longitudinal intervals and each having a base portion 3a forced downwardly on to the girder 2 so that an overlapping portion 3b, 3c presses on to the rail flange 1. The portion 3c of the clip 3 has a sharp edge arranged longitudinally of the rail, which bites into the rail flange 1 when the clip 3 is bolted down. The clip 3 is of sheet metal and tapers in width, Fig. 2, from the base portion 3a to the front portion 3c. In the arrangement shown in Fig. 3 the clip 8 is provided at its rear end 10 with a fulcrum 14 and two downwardly offset portions 17 which engage the upper surface of the girder 2 when the nuts 11 are tightened. The studs 5 or 12 are longitudinally spaced to prevent rotation of the clips 3 or 8. In the arrangement shown in Fig. 6 the studs 12 are welded to steel strips 18 in turn welded at 19 to the surface of the girder 2. A second strip 20 welded to the girder 2 at 21 serves as the bearing surface for the fulcrum 14 and the offset portions 17. The underside of the nuts 11 and the upper adjacent surface of the clips 8 may be cone or dome shaped. The clips each exert a thrust on the flange 1 of about one to four tons. Reference has been directed by the Comptroller to Specification 683,961.