baber/WOPTO huggingface dataset:
Patent GB-591191-A (GB)
Title: Improvements relating to liquid measuring apparatus
IPC: G01F11/32
Filed: 1945-05-01
Abstract: 591,191. Liquid measuring apparatus. GASKELL & CHAMBERS, Ltd., and WEIGHTMAN, J. S. May 1, 1945, No. 11012. [Class 106 (v)] Liquid measuring apparatus comprises a hollow body part a with inlet p and outlet b at its upper and lower ends, controlled by closures g and c operated through slidable stems x and 2 by a relatively massive slidable inner member v which is actuated from outside through an internallysituated lever 10. A vent s is provided in the body part controlled by a spring- loaded closure t also operable by the sliding member v. The internal lever 10 is operated from outside through the spindle 11 by an external lever. This may be operated either by a sliding member 16 with arms 17 to co-operate with the edges of a drinking glass or by a push rod or by a finger lever. The part g of the body may be formed of glass. In other forms there is a glass window provided in the body.
Patent GB-389997-A (GB)
Title: Improvements in and relating to electrical regulators
IPC: G05F1/00
Filed: 1932-04-18
Abstract: 389,997. Voltage regulation. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Garman, G. W.; 98, Reynolds Street, Scotia, New York, U.S.A.) April 18, 1932, No. 11079. Convention date, April 17, 1931. [Class 38 (iv).] A regulating system for a dynamo-electric machine comprises a full wave valve rectifier feeding the field winding of the machine, the control grids of the valves being fed from a phase shifting circuit the output of which is modified by means of a potential bridge, one diagonal of which is connected across the machine. The grids of valves 16, 17 feeding the field winding 13 of machine 11 are supplied through a transformer 21 from a phase shifting circuit comprising a condenser 18 and resistance A connected in series across the secondary of a transformer 20. The centre tap of the secondary of the grid transformer 21 is connected to the valve cathode through a resistance 24, the potential across which is determined by a valve 28 the conductivity of which is controlled from a bridge 30 having resistances with dissimilar characteristics as the arms. When the voltage of circuit 10 is normal the valve 28 conducts sufficiently to cause a small positive bias to be produced across the resistance 24 so that the valves 15, 17 conduct sufficiently to supply normal field current to the winding 13. In a modification a saturable reactor is included in the phase shifting circuit, and the saturating winding is connected across one diagonal of the bridge 30. A rectifier in the circuit prevents current flow in the opposite direction in the event of a large .voltage change causing' the potential across the bridge to reverse.
Patent GB-1380231-A (GB)
Title: Isomerization of tetrahydrophthalic anhydride isomers
IPC: C07D307/89
Filed: 1972-03-09
Abstract: 1380231 Tetrahydrophthalic anhydride isomers KOPPERS CO Inc 9 March 1972 [10 March 1971] 11152/72 Heading C2C One isomer of tetrahydrophthalic anhydride or a tetrahydrophthalic ester is converted to another isomer, having the double bond in a different position by contacting with a catalytic amount of rhodium.
Patent GB-678978-A (GB)
Title: Improvements in method of recovering lithium compounds from lithium minerals
IPC: C22B26/12
Filed: 1950-05-05
Abstract: Lithium-containing ores, e.g. spodumene, are calcined in admixture with an oxide, hydroxide or salt of an oxidic acid of an alkali or alkaline earth metal in amount insufficient to render the compound of lithium materially soluble in water, the calcined material is brought into contact with water containing anions of an acidic radical, and a dissolved lithium compound is recovered. Slaked lime, limestone, dolomite, magnesium oxide, calcium sulphate sodium carbonate, sodium sulphate or several of these compounds may thus be calcined with the spodumene, e.g. in a rotary furnace, or, mixed with coal, in a furnace with a fixed or p  moving grate.  The reaction may be stopped at the first signs of sintering, although the mass may be completely fused.  By way of example, from 0.5 per cent to over 50 per cent, but less than 100 per cent by weight lime reckoned on the spodumene may be used. Extraction may be effected by solutions of sodium chloride, sulphate or nitrate, or calcium chloride or nitrate at elevated pressure and temperature, maxima of 90 atmospheres and 400 DEG C being specified, or by boiling hydrochloric acid solution without superatmospheric pressure.  The extract is treated with sodium carbonate to precipitate lithium carbonate, and to regenerate a sodium salt for reuse.
Patent GB-596988-A (GB)
Title: Improvements in or relating to hobs for cutting spur gear teeth
IPC: B23F21/16
Filed: 1945-05-03
Abstract: 596,988. Milling-cutters. SOC. ANON. A. SAURER. May 3, 1945, No. 11269. Convention date, Dec. 14, 1943. [Class 83 (iii)] A hob for cutting spur gear teeth is composed of a number of discs 1-4 mounted on a common arbor so as to abut on faces A-A, B-B, &c. normal to the arbor axis, the cutter teeth being arranged on at least two helices and the thickness of each disc being equal to the pitch of the helix divided by the number of helices, that shown having a double thread so that each disc has parts of two convolutions, 6a-6d and 6e-6h spaced 180 degrees apart. The boss of each disc has as many keyways as there are threads in the helix to allow angular adjustment of the discs relatively to each other and a disc may be moved from the centre to the end of the hob to distribute wear on the teeth. Alternate teeth are relieved on opposite flanks, as at 10a, 10b &c. so that each tooth cuts on one flank only, and the leading faces 11a, 11b &c. of the teeth are inclined to planes I ... I normal to the helix at angles alpha equal to the helix angle, this angle being arranged on opposite sides of the planes I ... I in alternate teeth so that half of the faces 11b &c. are parallel to the hob axis. The faces 11a &c. are arranged in the radial direction perpendicular to the tangent planes at their tips.
Patent GB-1300446-A (GB)
Title: Improvements in or relating to processes of producing compositions for controlling the bacterial flora in the intestines of human beings and animals
IPC: A61K35/74
Filed: 1970-03-10
Abstract: 1300446 Preparations of living microorganisms CERNELLE AB 10 March 1970 [13 Oct 1969] 11294/70 Heading C6F [Also in Division A5] A competition for controlling the bacterial flora in the intestines of human beings and animals such as suckling pigs and calves, comprises the bacterial product of cultivating in an aqueous nutrient medium containing carbohydrates and sources of organic nitrogen and growth substances, under submerse anaerobic conditions, Streptocorrus faecium Cernelle 68 (NCIB 10 415), separating the resulting bulk of bacteria from the cultivation medium and preferably freezedrying the bacteria. The strain was developed by sub-cultivation from a natural strain. The merphological and cultural properties are given.
Patent GB-423403-A (GB)
Title: Rotary grinding apparatus
IPC: B02C4/30
Filed: 1934-04-14
Abstract: 423,403. Disc and conical mills; centrifugal machines. MYERS, E. B., Physics Building, Columbia University, New York, U.S.A. April 14, 1934, No. 11316. [Classes 23 and 59] A rotary grinding element for use in grinding mills or in homogenizers or mechanical emulsifiers, comprises a rim portion having a lateral or a frusto-conical peripheral grinding surface connected by a flexible support to a hub portion, the support being arranged either substantially in the plane of the grinding surface or in the plane of the smaller peripheral edge of the grinding surface, or between the plane through the centre of gravity of the rim portion perpendicular with the axis of rotation, and the plane of the grinding surface, or the plane of the smaller peripheral edge of the grinding surface. The element may be composed of stainless steel, bronze, &c., or of the metal known under the Registered Trade Mark " Monel." Fig. 4 shows two co-operating elements having rims 1 with grinding faces 2, flexible supports 4, and hub portions 5, the materials to be ground being fed into the space 8 between the elements through hollow shafts 9 or being forced from outside the elements between the grinding faces into the space 8 and out through the channels 9. The rims, e.g. of manganese steel, may be made separate from the webs and secured thereto. The webs may be composed of a plurality of laminae or of radial spokes of wire &c., backed by a confining sheet which forms part of the feeding-chamber. The faces 2 of the rims may contain depressions or machine marks to give a preliminary shearing action to coarse materials and such action may be improved by serrating the rim-peripheries so that as the materials are forced outwardly, they are subjected to a shearing action by the serrated edges. In another construction the rear face of the rim of one element is corrugated and co-operates with spring-urged rollers so that the element has, in addition to its grinding action, a swaging or pounding action which is particularly of use when crushing materials, such as ores, gypsum, siliceous materials, ganister, barytes, and limestone. Fig. 9 shows the invention applied to a conical mill having a fixed member 35, through an aperture 37, in which the material enters, and a rotating element having a flexible web 38 and off-set rim 36.
Patent GB-1436986-A (GB)
Title: Cathode and heater assembly for a cathode-ray tube
IPC: H01J29/04
Filed: 1974-03-14
Abstract: 1436986 Thermionic cathodes INTERNATIONAL STANDARD ELECTRIC CORP 14 March 1974 [20 March 1973] 11329/74 Heading H1D An indirectly heated cathode for a C.R.T. comprises a tube 1 with at one end, a cap 2 carrying emissive material, and a heater 4 coated with a dark layer of insulation in the tube adjacent the cap, the heater being a half or less than half the length of the tube. The inside of the tube is non-reflective and the outside is roughened and/ or darkened. The cathode heats up rapidly and the maximum temperature occurs at the emissive surface.
Patent GB-560152-A (GB)
Title: Improvements in or relating to electric lamps
IPC: F21V5/00
Filed: 1942-08-13
Abstract: 560.152. Aircraft lamps. HARLEY, M. C. Aug. 13, 1942, No. 11350. [Classes 39 (ii) and 75 (iv)] - An electric lamp suitable for use on aircraft and emitting a parallel beam for distant illumination and a downwardly directed beam for local illumination comprises an electric lamp bulb d having helical wire filament sections a, b connected in series, the main section a being substantially concentric with the focal axis and substantially symmetrical about the focus of a reflector c and the auxiliary section b being laterally displaced either parallel with or at an inclination to the section a. The auxiliary section b may consist of two or more sub-sections arranged at an angle to the focal axis. The axis of the bulb d in the construction shown is horizontal and inclined at 63‹ to the vertical plane containing the filament axes. A deflector h described in Specification 372,285 may be provided for deflecting downwards the beam from the upper half of the reffector. A sighting hole e in a cross bar f facilitates the mounting of the lamp bulb with the filament section a on the focal axis.
Patent GB-113519-A (GB)
IPC: F21V15/00
Abstract: 113,519. Veritys, Ltd., and I'Ons, T. March 23, 1917. Globe-holders.-In a globe-supporting device of the type in which the globe for enclosing an electric lamp is clamped against its holder a by means of a U-shaped or similar shaped stout wire frame secured to the holder a by means of nuts f on the side rods d of the frame, one or more of the side rods d are locked to the holder by means of a key-operated device. In one form, the locking- device comprises a screw pin g whose inner end is adapted to engage a flattened part d<3> of one of the side-rods and whose outer end has a specially shaped shank g<2>, e.g. one of triangular cross-section, so that the screw can only be operated by a similarly shaped key inserted in a tubular extension h on the holder. The Provisional Specification also states that the screw pin may engage holes in the rods.
Patent GB-601523-A (GB)
Title: Improvements in or relating to air operated gauging equipment
IPC: G01B13/10
Filed: 1945-05-04
Abstract: 601,523. Gauges. SIGMA INSTRUMENT CO., Ltd., and LOXHAM, J. May 4, 1945, No. 11389. [Class 40 (i)] [Also in Group XIX] Pneumatic gauging apparatus of the type in which the amount of air escaping through a nozzle controlled by the workpiece is a measure of the dimension of the workpiece is characterized in that the escaping air is used to unbalance a Wheatstone bridge to indicate the dimension electrically. Air is fed under pressure through a restriction 2 in a pipe, one limb 4 of which leads to a compensating valve 11 which maintains the pressure in the limbs 3, 4 substantially uniform. The limb 3 has two gauging nozzles 6, 7 from which the air escapes at a rate depending on the inside diameter of the workpiece. A Wheatstone bridge network includes two heating filaments 13, 14 inside the pipes 3, 4, the bridge being balanced when a master piece is being gauged. A variation from standard causes a variation in the flow of air in the pipes 3, 4 to cool the filaments 13, 14 differentially and so to vary their resistances and unbalance the bridge. A galvanometer G, which may be of the type described in Specification 601,540, [Group XXXVI], indicates the variation from standard.
Patent GB-118142-A (GB)
Title: Improvements in Pistons.
IPC: F02F3/02
Filed: 1917-08-11
Abstract: 118,142. Roesch, G., and Talbot, Ltd., C. Aug. 11, 1917. Pistons.-In a trunk piston, the gudgeon bearings T<1>, T<2> are carried by inclined webs W<1>, W<2>, and are also united to the dependent flange F of the head H, which carries the packing-rings. The webs W<1>, W<2>, are united to the head H, and their edges are connected below the flange F by an extension F<1> of the flange. A short cylindrical extension below the extremities of the webs W<1>, W<2> may carry additional packing.
Patent GB-459425-A (GB)
Title: Improvements in and relating to fans
IPC: F04D29/38
Filed: 1936-04-24
Abstract: 459,425. Securing fans on shafts. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. April 24, 1936, No. 11733. Convention date, April 26, 1935. [Class 80 (ii)] [See also Group XXVI] Fan blades are secured to a ring 19 which is carried by four springs 18. The ends of the springs are secured to the driving boss 26. The Specification as open to inspection under Sect. 91 comprises also the mounting of the fan hub 4, Fig. 2 (Cancelled), upon an inner hub 9 with an annulus of rubber 8 interposed between the hubs and secured to the surfaces thereof and the mounting of a fan disc 3, Fig. 4 (Cancelled), in a rubber hub piece 16 moulded around the disc. This subject-matter does not appear in the Specification as accepted.
Patent GB-117730-A (GB)
IPC: F24H1/38
Abstract: 117,730. Jackson, J. D. Sept. 25, 1917. Heating water.-An internally. fired domestic water-heater of rectangular shape is built up of water jackets 9, Fig. 3, on two or more sides having hollow baffles or tubes 10 communicating with one or more of the jackets and arranged in horizontal staggered rows as shown in Fig. 2. In the construction shown, the baffles 10 are tapering and of lozenge shape and closed at one end; in other constructions described, the baffles employed are circular and may connect opposite water jackets. When closed baffles are employed in conjunction with two jackets 9 connected by end plates 20 as shown, two inlet pipes 12, 13 and two outlet pipes 14, 15 are necessary; but when more than two jackets are used or the baffles extend completely across the heating space, one inlet and one outlet pipe are sufficient. Reference has been directed by the Comptroller to Specifications 817/88, 13642/94, 2655/00, and 6895/03.
Patent GB-169740-A (GB)
Title: Improvements in or relating to screw and nut mechanism
IPC: F16H25/22
Filed: 1920-04-28
Abstract: 169,740. Brinjes &. Goodwin, Ltd., and Titterton, F. April 28, 1920. Screw-and-nut mechanism adapted for presses comprises an inner screw 1 for rapid motion, and an outer screw 3 to give a final nip, the latter comprising antifriction balls 4 in helical grooves. At first the screw 1 alone moves to the right through the double screwed sleeve 3. When the hand-wheel 14 strides the end 11 of the sleeve 3, the whole screws on the balls 4 relatively to a fixed nut 5. The balls are kept from leaving their races by caps 6, 7.
Patent GB-681095-A (GB)
Title: Propellent explosives having a high deflagration temperature
IPC: C06B25/34
Filed: 1949-05-03
Abstract: 681,095. Propellant explosive. FRANCAIS; ETAT. May 3, 1949 [May 14, 1948], No. 11814/49. Class 9(ii) A propellant, which does not decompose below 200‹C, consist substantially wholly of a mixture of a material decomposing to provide an excess of oxygen, selected from the group consisting of sodium, potassium, and ammonium nitrates and perchlorates, and sodium and potassium chlorates, with a material'decomposing to liberate insufficient oxygen to support the complete combustion of the other products of its decomposition, selected from the group consisting of nitroguanidine, 3, 6-dinitrocarbazol, 1, 3, 6, 8- tetranitrocarbazol, carbazol, hexanitrodiphenylamine, and 2, 4, 5, 7-tetranitrosulphoxydiphenylamine.
Patent GB-567018-A (GB)
Title: Extensible trailer frames
IPC: B62D63/06
Filed: 1943-07-21
Abstract: 567,018. Trailers. DREWRY, J. S., and HANDS (LETCHWORTH), Ltd. July 21, 1943, No. 11846. [Class 108 (i)] Trailers, either of the articulated type as shown in plan, Fig. 2, or of the independent type, are made extensible by forming the framework in two portions, the front portion being carried on a steering turntable and slidably connected by beams A, fitted in box-section members B, to the rear portion attached to the rear axle. Locking bolts E controlled by lever G fix the beams A at the required extension or, as shown, in the position of shortest length with the deck or platform complete. The trailer rear axle brakes are operated by a cable N passing round a pulley L, carried on an arm J pivoted at M and connected to the brake by a cable K.
Patent GB-685511-A (GB)
Title: Improvements in or relating to apparatus for measuring and regulating variable conditions in bore-holes
IPC: E21B47/06
Filed: 1951-05-22
Abstract: 685,511. Electric indicating systems. MAIHAK AKT.-GES,, H. May 22, 1951 [June 9, 1950], No. 11937/51. Class 40 (i). Apparatus for the determination of pressure (or temperature) inside a borehole comprises an element sensitive to variations in pressure (or temperature) which varies the tension and hence the frequency of oscillation of a stretched steel wire, the mechanical oscillations being transmitted as electrical oscillations via the insulated pipes of the pump &c., and measured at the surface. For measuring pressure (Fig. 1), the sensitive element is a diaphragm 1 attached to a stretched steel wire 2, vibrating under the effect of an electromagnet 3 connected to the surface through the outer casing 6 and the pump rising pipe 4. The frequency of the vibrations is determined by measuring the frequency of the pick-up in the magnet coil 3. The unit is located in a housing 9 with perforations 8, surrounded by a jacket 10 with perforations 11. For measuring temperature (Fig. 2), the sensitive element 12 consists of a material having a temperature coefficient of expansion different from that of steel. The two units may be combined, and the coil connections brought to the surface via a change-over relay to enable alternate readings of pressure and temperature to be made. Specification 509,647 is referred to.
Patent GB-1103509-A (GB)
Title: Improvements in engine mounting
IPC: B64D27/26
Filed: 1965-03-22
Abstract: 1,103,509. Engine mountings. GENERAL ELECTRIC CO. 22 March, 1965 [30 March, 1964], No. 11962/65. Heading B7G. [Also in Division F1] A mounting for a jet propulsion engine such as an aft fan gas turbine engine comprises two axially spaced toroidal tubes 17 fixed to an aircraft and containing a resilient material 20 such as rubber. The tubes encircle the engine 4 and have opposed axially directed openings into which plungers 11, 12C are inserted to compress the resilient material. These plungers abut a radial flange 9 on a ring 8 encircling, and fixed to the engine and disposed between the toroidal tubes, or flanges on a series of circumferentially spaced brackets fixed to the engine (Fig. 6, not shown). The plungers 12C may be adjustable in length, and the flange or flanges may have radial grooves 13 to engage the ends of the plungers and transmit rolling moments, and transverse as well as axial loads to them while permitting radial thermal expansion of the engine. In a modification (Fig. 5, not shown), the resilient material is hollow and contains hydraulic fluid.
Patent GB-1423307-A (GB)
Title: Frequency detecting circuit
IPC: H04B3/10
Filed: 1973-03-13
Abstract: 1423307 Voice immunity circuits NIPPON ELECTRIC CO Ltd 13 March 1973 [14 March 1972] 11963/73 Heading H4R A specific frequency within a band (e.g. speech) is detected by splitting the band into channels 210, 211 of which the first 210 produces a limited 212 and rectified 203 version of the whole band filtered at 202 and the second 211 produces an amplified 205 and rectified 206 version of the band with the specific frequency rejected at 204, the rectified signals being compared 207 to provide an output when the first channel output exceeds the second by a threshold 208. The limiter 212, which may be a diode, transistor or AGC circuit, ensures that high level speech containing the specific frequency does not trigger the circuit.
Patent GB-206174-A (GB)
Title: Improvements in or relating to apparatus for effecting intimate contact of gases and liquids
IPC: B01F25/74
Filed: 1922-04-29
Abstract: 206,174. Wright, S., and Meldrums, Ltd. April 29, 1922. Liquids, treating with gases.-In apparatus for effecting intimate contact of gases and liquids comprising one or more compartments 7 wherein liquid is broken up into fine spray by a combined rotary atomizing and liquid collecting means, the atomizer consists of a hollow truncated cone or cylinder 15 having internal spiral vanes &c. 17 extending to the bottom which is submerged in liquid, and a perforated chamber or casing 16 surrounding the cone or cylinder. Gas ascends upwardly through openings 10, and liquid is delivered successively to lower compartments through pipes 20 discharging into the atomizer casings, the pipe inlets extending above the dished compartment floors, which are ribbed to prevent swirling, in order to maintain liquid above the bottom of the collector cone. The treated gas passes through or between a series of baffles on which it deposits suspended moisture before discharging through an outlet 25.