baber/WOPTO huggingface dataset:
Patent GB-1104861-A (GB)
Title: Improvements in or relating to aircraft radio landing aids
Inventor: SCHELISCH ERNST FRIEDRICH
IPC: G01S3/46
Filed: 1965-03-15
Abstract: 1,104,861. Radio position finding. MARCONI CO. Ltd. 28 Jan., 1966 [15 March, 1965], No. 10932/65. Heading H4D. In a landing and/or take-off radio system for an aircraft A, Fig. 1, the aircraft A radiates an omnidirectional signal comprising a carrier frequency fo, frequency modulated by a frequency fm. The signal is received by five antennµ R1 to R5, R1 and R2 being on a line L1 orthogonal to the flight path 9 and equidistant therefrom, R3 and R4 being on a similar line L2, further along the path 9D and closer together, and R5 being in line with the beginning of the flight path 9. The system determines the difference in the path length from the aircraft to the receivers of each of a plurality of pairs of the receivers, and uses said differences to enable a computer (C), Fig. 2 (not shown), to compute the aircraft's position, which position may be used by a ground controller to talk the aircraft down, or may be communicated to the aircraft for display on known cross-pointer indicator. Fig. 2 shows antenna R1 and R2 and their associated equipment. The received frequency modulated signal at R1 has its carrier frequency shifted to (fo - fz1) in mixer E12, and the signal at R2 has its carrier frequency shifted to (fo-fz1+fz2) in mixer E22. The two frequency shifted signals are mixed in mixer 5 to produce a signal with a carrier frequency fz2 and a frequency difference deviation representing the required path difference. The carrier frequency is changed to fz3 in mixer 7 and the frequency deviation determined by a discriminator 9 or means responsive to sideband amplitude. The result is fed to the computer C, together with similar results from other pairs of antennµ.
Patent GB-1498512-A (GB)
Title: Colour reproduction processes
IPC: G03G13/01
Filed: 1975-03-17
Abstract: 1498512 Electro-photographic materials for multi-colour processes MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 17 March 1975 [27 March 1974 9 April 1974] 10952/75 Heading G2C An electro-photographic material for multicolour processing comprises an electrically conductive support and a layer of at least two groups of particles, each group containing photo-conductive particles, a sensitizer which absorbs only part of the visible spectrum and a colour former which produces a colour on reaction with an acid; the sensitizer and colour former of each group absorbing a different part of the spectrum and forming a different colour, respectively. Preferably, there are 3 sets of particles, the first with a blue sensitizer and a yellow colour former, the second with a green sensitizer and a magenta colour former and the third with a red sensitizer and a cyan colour former each with a binder. The particles are mixed and preferably applied to a conductive support with an adhesive layer by pressure and heat or the mixed particles are applied to a charged dielectric support and then transferred to a conductive support by pressure and heat. The material is then charged, exposed to a coloured original and developed by a magnetic toner which contains iron bisphenol A or 2,2' -dihydroxydiphenyl (as the acidic substance), phenolic resin and nylon or a styrene copolymer or a styrene copolymer phenolic resin mixture and fixed by heating. Organic acids or acid clays may be used as the acidic substance instead of phenols or chlorophenols. ZnO, TiO 2 , Se, polyvinyl carbazole or polyvinylanthracene are specified photo-conductors whilst crystal violet lactone (cyan), rhodamine lactone (magenta), benzoyl bucomethylene blue (cyan), 3-dimethyl aminobenzofluoran (magenta) and 3,3'-dimethylaminodiphenylamine (yellow) are the specified colour formers. Sensitizers specified are Auramine, Rose Bengal and Diacid Cyanine Green.
Patent GB-641894-A (GB)
Title: Improvements in or relating to pit-props
IPC: E21D15/00
Filed: 1947-04-24
Abstract: 641,894. Application of indicators. CABLE, R. G. April 24, 1947, No. 10974. [Class 78 (iii)] [Also in Group X] A hydraulically - operated pit-prop is provided with a bleeder valve, Fig. 5, at the top of the cylinder to allow liquid to escape when the load on the prop exceeds a predetermined value, thus causing the length of the prop to be adjusted in proportion to the load. The prop comprises a piston 4 fixed to a foot 5, and a cylinder 2 fixed to a head 3 on which is pivotally mounted a short joist 39. The cylinder has a spring-urged, non-return inlet valve 16. The bleeder valve has a spring (31)- urged valve member 28. The pressure at which the bleeder valve opens is adjusted by means of a screw-threaded plug 26. The liquid escapes through holes 33. The escaping liquid, which may be coloured, indicates that a " squeeze " is occurring. The upward movement of the prop may be limited by steps 8 on the piston and cylinder. The foot 5 may be pivotally mounted and the bearing surfaces of the foot and head may be serrated. The prop may be made of an aluminium alloy, in which case the bearing surfaces of the piston and cylinder may have a hard chrome coating.
Patent GB-235689-A (GB)
Title: Improved first-aid splint
IPC: A61F5/058
Filed: 1924-05-05
Abstract: 235,689. Hanmer, C. May 5, 1924. Splints are made of pliant sheet material A, such as thin wood or multi-ply wood, to which a pad B of resilient felt is permanently attached by an adhesive or by stitching. A number of such splints may be placed end to end and united by a metal socket D receiving the ends of the wood splints.
Patent GB-848050-A (GB)
Title: Improvements in or relating to sheet metal joints
Inventor: DELAMARE ALFRED CHARLES
IPC: B21D39/03
Filed: 1959-04-01
Abstract: 848,050. Making hollow-ware; sheet-metal joints. STANDARD TELEPHONES & CABLES Ltd. April 1, 1959, No. 11015/59. Classes 83 (2) and 83 (4). A sheet-metal joint connecting together two sheet-metal parts, e.g. the sides of a casing for carrying electrical components, comprises a tongue 1 formed in one of said parts 2, and, at a position away from the edge of the other of said parts 3, a band 4 is pressed from the plane of said other part leaving a hole 5 in said other part beneath the band into which an intermediate part of said tongue is pressed and held therein by said band. Channels 6 are provided at the sides of the hole to assist in accommodating the tongue.
Patent GB-1133283-A (GB)
Title: Colour comparison scale
Inventor: HARTEL ARNOLD
IPC: G01N31/22
Filed: 1967-03-10
Abstract: 1,133,283. Colour calibration chart. E. MERCK A.G. March 10, 1967 [March 12, 1966], No.11453/67. Heading G2J. Colour comparison scales for the evaluation of colour reactions are prepared by printing a band of colour on to a carrier by half-tone printing, the colour band containing all the colours and shades occurring in the colour reaction in question with the colours and shades merging continuously into one another, and then applying to the carrier a calibration scale according to the colours actually appearing on the printed carrier, (e.g. of paper, cardboard or a polymer). The half-tone printing-plate may be prepared photographically; a series of calibration colours is produced over the range of the colour reaction; the proportion of each prime colour in each calibration colour is determined by comparison with a colour value table; these prime colours are then sprayed on to a backing in the required amounts so that the calibration colours merge into each other and the chart thus prepared is used to photographically prepare the plates. The plates prepared are used to produce colour charts by 3 or 4 colour printing, and the charts are then calibrated by comparison with predetermined calibration colours. Instead of making the printing plates from a complete colour band, each primary colour plate may be made from a half-tone screen having a density in each area corresponding to the density of the primary colour in that area.
Patent GB-539727-A (GB)
Title: Improvements in bearings, particularly for x-ray apparatus
IPC: H01J35/10
Filed: 1940-07-12
Abstract: 539,727. X-ray tubes. BRITISH THOMSONHOUSTON CO., Ltd. July 12, 1940, No. 11601. Convention date, July 13, 1939. [Class 39 (i)] [Also in Groups XXXIV and II] Magnetic means are operatively associated with the wearing parts of bearings for X-ray tubes to collect and retain the wear products. A non-magnetic shield may be interposed between the magnet and the bearing to prevent the latter from becoming magnetized. As shown, the bearings 44, 46 carry a sleeve 85 with the rotating anode 15 on a spindle 35 which also houses a magnet M with end shields S of copper, etc. The anode 15 has a target 37 and an extension surrounding and protecting the seal 33, the rotor of an electric motor being mounted on the anode. A shield 91 of molybdenum or tantalum is secured to nut 69 to shield the rear bearing from the heat of the target. In a modification as applied to the construction of Specification 538,939, the inner bearing races each comprise a pair of elements allowed to separate against spring pressure to increase the dimensions of the races. The elements are grooved to receive pins extending from the shaft 35, its abutment 59, or the nut 69 to prevent rotation relative to the shaft. Springs extend between the elements and a magnet such as M secured to the shaft and forming a collar. The outer races are in one piece and are secured to the sleeve 85.
Patent GB-542510-A (GB)
Title: Thermionic amplifiers
IPC: H03F1/54
Filed: 1940-07-12
Abstract: 542,510. Telephone &c., transmission. STANDARD TELEPHONES & CABLES, Ltd., JACOBSON, B. B., and ROCHE, A. H. July 12, 1940, No. 11632. [Class 40 (iv)] [Also in Group XL] A negative feed-back amplifier of the plug-in type may be inserted in a number of positions and the gain or output impedance is determined by the position in which it is inserted. Fig. 1 shows an arrangement in which the required control of the gain or impedance is obtained by adjustment of the feed-back by selecting feed-back path F1 or F2. The elements in the feed-back path may be wholly or in part mounted on the panel into which the amplifier is inserted. In different positions the amplifier may have different gain/frequency characteristics. In this way a single type of spare amplifier may be used in different parts of a communication system as required.
Patent GB-1327165-A (GB)
Title: Gravity feed hoppers
IPC: B65D88/66
Filed: 1972-03-13
Abstract: 1327165 Discharging material from hoppers BROOKHIRST IGRANIC Ltd 13 March 1972 [12 March 1971] 11648/72 Heading B8S An agitator screen 8, Figs. 1, 2, within a hopper 2 is vibrated by a vibrator motor 18 resiliently mounted outside the hopper by rubber bushes 22 and bolts 28. A spring 48 acts between a fixed plate 38 and the base 14 of the motor to prevent deformation of the bushes 22 due to the combined weights of the material in the hopper acting on the screen 8 and the motor 18. A screw 42 and nuts 40, 46 provide adjustment for the spring 48. Any resilient means could replace the spring 48 and could act in tension rather than compression.
Patent GB-1324564-A (GB)
Title: Casting window or door frames
IPC: B29D12/00
Filed: 1971-04-27
Abstract: 1324564 Moulding window frames H THAMS 27 April 1971 [4 May 1970] 11697/71 Heading B5A In a method of casting window frames from epoxy resins, the sash frame 3 and window wing 4 are cast simultaneously in a mould comprising two parts 11, 12; the sash frame and window wing are separated in the mould by a separating member formed by two foil members 23, 24, the separating member being so profiled that the sash frame and window wing have complementary tapering surfaces which provide a sealing profile between the two. In the embodiment shown in Fig. 4, the upper edge 25a of the separating member 2a defines a weir so that the whole mould maybe filled by pouring resin into the cavity 103a, the resin flowing over edge 25a into the cavity 104a when cavity 103a is full.
Patent GB-474052-A (GB)
Title: Improvements in or relating to armchairs, settees and the like
IPC: B60B33/00
Filed: 1936-04-24
Abstract: 474,052. Seats. TRIER, V. A. April 24,1936, No. 11715. [Classes 52 (i) and 52 (ii)] In an armchair or settee, the outer wall of each arm extends nearly to the floor, and a supporting wheel E, Fig. 1, is mounted on a transverse axis within each arm so as to project slightly below the base of the chair. The axis of the wheels is somewhat in front of the vertical line through the centre of gravity of the chair, and the back of the chair rests on. pads F of rubber or the like, or may alternatively be supported on a castor wheel, which may be resiliently mounted to allow the chair frame to rest on the floor when used. The wheel E may be mounted in a bracket J, Fig. 5, which is secured to a platform H, preferably inclined, in the chair frame. In a modification, the wheel E, Fig. 6, is mounted on a lever K pivoted at K<2> and pressed downwardly by a spring L of sufficient strength to raise the seat when unoccupied but to allow the seat to rest on the floor when occupied.
Patent GB-104297-A (GB)
Title: Improvements in Milling Cutters.
Inventor: WATSON HENRY BURNETT
IPC: B23C5/22
Filed: 1916-08-19
Abstract: 104,297. Watson, H. B., Billetop, T. C., Ferrier, J., and Boyd, J. Aug. 19, 1916. Milling-cutters of the inserted-blade type have alternate blades in slots of opposite obliquity to the plane of the disk body. The two sets B, B<1>, Fig. 1, of blades are axially staggered, and may be arranged upon separate bodies with centres slotted to interlock at a<4>, Fig. 3. The slotted centres may be detachable from, and bolted or secured to, the disks, interchangeable distancepieces being employed in the case of gang or straddle cutters.
Patent GB-1211953-A (GB)
Title: Single flank total composite error testing apparatus
IPC: G01B5/20
Filed: 1969-03-06
Abstract: 1,211,953. Fluid couplings. MAAG GEAR WHEEL & MACHINE CO. Ltd. 6 March, 1969 [30 April, 1968], No. 11882/69. Heading F2C. [Also in Division G1] A slipping clutch comprises an oil filled drive gear-wheel 32, Fig. 4, in a gear testing machine (see also Division G1) and is provided with a fixed ring 36 and a ring 35 which is driven by a continuously variable speed motor 34. It is stated that by this arrangement the torque transmitted may be varied and may be added or subtracted to the alternative drive to the gear-wheels 3, 4, Fig. 1 (not shown), under test.
Patent GB-309956-A (GB)
Title: Improvements in and relating to electro-magnetic apparatus
IPC: G01R11/36
Filed: 1929-04-17
Abstract: 309,956. British Thomson-Houston Co., Ltd., (Assignees of kinnard, I. F.). April 18, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. Electromagnets are provided with core members constructed of materials having different permeabilities at a given low flux density, the material with the highest permeability having the lowest saturation point. The different materials can be arranged in series or parallel relationship in the magnetic circuit. Specification 286,647, [Class 37, Electricity, Measuring &c.], is referred to.
Patent GB-283042-A (GB)
Title: Improvements in and relating to the supercharging of two-stroke cycle internal combustion engines by means of exhaust gas turbines
IPC: F02B37/10
Filed: 1927-05-04
Abstract: 283,042. Brown, E. May 4, 1927. Drawings to. Specification. Driving-gear.-Two-stroke-cycle engines having exhaust and air ports uncovered in succession by the piston are charged by a centrifugal blower driven by an exhaust gas turbine and an auxiliary motor whose output varies directly as its speed. The exhaust turbine and the auxiliary motor receive their supplies of energy without control by governing or regulating gear. If the auxiliary motor is a low pressure steam turbine it is connected direct to the supply pipe; if an electric motor direct to the mains. The auxiliary motor is sufficiently powerful to supply scavenge air at light or no load when there is no power available from the exhaust gases. Two auxiliary motors, one a turbine the other electric, may be used together or independently with the exhaust turbine to drive the blower. The electric motor may be compound wound or shunt wound with an opposing separately excited winding.
Patent GB-879993-A (GB)
Title: Toy figure in particular a toy bird
IPC: A63H13/02
Filed: 1959-04-09
Abstract: 879,993. Mechanical toy figures. COLLI SHAN, F., [trading as KOHLER, G. [firm of]]. April 9, 1959 [Feb. 18, 1959], No 12029/59. Class 132(3). As shown, a toy bird, which moves its head legs, wings and tail, opens and closes its bear and produces a sound, is actuated by three can discs 19, 20, 21, Fig. 2, on a common shaf 4 driven by a spring 3, Fig. 5. The cam disc 19 engages a finger 25 which rotates an axle 26 and a lever 27, Fig. 4. to operate the beak through a rod 29, pivoted plate 70, Figs. 2 and 6, and link 73 while a push rod 32, Fig 4, connected to the lever 27, pivots a rockable part 36 carrying the tail 24 and a sound pro ducer 22 to move the tail and produce , a sound, a sounding tongue 53, which is secure( to a diaphragm 52, being brought into contac with a rotating star wheel 18 geared to the drive shaft 4. The cam disc 20 engages a shoulder 38, Fig. 2, and thus pivots the leg: about a shaft 40 and also flaps the wings through springs 42 connecting the legs and wings. The cam disc 21 engages a cam 47 or an arm 46 having a finger 49 at its end, the finger engaging in a slot 72, Fig. 6, in a heac carrying disc 51 to rotate the head to and fro The speed of operation of the toy is controlled by a governor 17.
Patent GB-832383-A (GB)
Title: Improvements in or relating to containers
Inventor: BENNETT HARRY JOHN
IPC: B65D43/02
Filed: 1957-04-12
Abstract: 832,383. Containers. METAL BOX CO. Ltd. Feb. 5, 1968 [April 12, 1957], No. 12085/57. Class 66. A can comprises a mouth defined by a metal ring of U-shaped section, having a shorter limb 5, connected by a part 4 to a flange 3 joining a flange seamed to the can body 10, and a longer limb 6 continued into a partial curl 7 so that the limb 6 and curl 7 yield when the mouth is closed by a lid with a plug portion 11 for engaging the limb 6. The mouth ring is of sheet metal, e.g. tinplate. The lower end of the part 11 has a spigot 12 to guide the lid into the can mouth, and the outer end of the lid is formed in a curl 14 to position the lid at the correct depth in the mouth. A gap 17 enables escape of volatile liquids in the can from between the surfaces of parts 6 and 11. The lid, removable by a lever as at 18, has dish-like portion 19 to provide maximum ullage. The portion 19 may be omitted, Fig. 5 (not shown).
Patent GB-728457-A (GB)
Title: Manufacture of basic diazoaminobenzene compounds
Filed: 1952-05-13
Abstract: The invention comprises diazoaminobenzene compounds of the general formula <FORM:0728457/IV (b)/1> wherein R and R1 each represent one of the groups <FORM:0728457/IV (b)/2> <FORM:0728457/IV (b)/3> <FORM:0728457/IV (b)/4> in meta- or para-position to the diazoamino bridge, and their salts, and the manufacture thereof by (a) reacting the diazo compound of an R-substituted aniline with an R1-substituted aniline, or (b) converting into R and R1 groups so convertible present in the meta- or parapositions of a diazoaminobenzene, e.g. by reacting aldehyde groups with aminoguanidine or a salt thereof.  When R and R1 are identical and in the same position relative to the diazoamino bridge, method (a) may be effected by reacting one molecular proportion of the R-substituted aniline with half a molecular proportion of a diazotizing agent and then adjusting the pH value of the reaction mixture to about 3-7 to couple the unreacted amine with the diazonium salt.  Examples describe: the preparation by this last method of symmetrically substituted compounds from p- or m-aminobenzamidine,p-aminophenylguanidine (prepared in situ by hydrolysing p-acetylaminophenylguanidine carbonate with dilute hydrochloric acid), and p-aminobenzalaminoguanidine; the preparation of asymmetrically substituted compounds by diazotizing the first and coupling with the second of the following pairs of compounds: p- and m-aminobenzamidine, p-aminophenylguanidine and p-aminobenzamidine, p-aminobenzamidine and p-aminobenzalaminoguanidine, m-aminophenylguanidine (prepared in situ by hydrolysis of m-acetylaminophenylguanidine carbonate) and p-aminophenylguanidine, and m-aminophenylguanidine and m-aminobenzamidine; and the reaction of diazoaminobenzaldehyde with aminoguanidine nitrate in aqueous methanol containing a trace of hydrochloric acid.  The free base and its hydrochloride is described in each case, and in some cases the carbonate and acetate.  The products are active against blood parasites.  m-Acetylaminophenylguanidine carbonate is obtainable from m-aminoacetanilide hydrochloride and cyanamide.
Patent GB-1326887-A (GB)
Title: Triazine carboxylic acids and esters
Filed: 1971-04-29
Abstract: 1326887 Aminotriazine-aminocarboxylic acids and esters CIBA-GEIGY AG 29 April 1971 [30 April 1970] 12139/71 Heading C2C The invention comprises the compounds of formula in which R 1  is phenylene or C 1-10  alkylene, R 2  is phenyl, C 1-6  alkyl or hydrogen, R 3  is hydrogen or -C x H 2x COOH in which x is 1-10, and R 4  and R 5  are each hydrogen, alkyl, alkenyl or phenyl. The compounds are prepared by reacting cyanuric chloride with R 4 R 5 NH or R 3 NHR 1  COOR 2  in either order. Aryl esters can be prepared by transesterification from phenol and alkyl esters. Methyl p-aminobenzoate is prepared by esterification.
Patent GB-548605-A (GB)
Title: Improvements in or relating to a method and apparatus for manufacturing screw sticks
IPC: B23G1/04
Filed: 1941-09-19
Abstract: 548,605. Turning ; rolling screw-threads. KODAK, Ltd. (Eastman Kodak Co.). Sept. 19, 1941, No. 12140. [Classes 83 (ii), 83 (iii) and 83 (iv)] Screw sticks as described in Specification 543,497 are produced from rods of the section required for the heads in a hollow spindle lathe having thread forming rolls. The rod passes from the chuck 5 into a supporting tube or steady 33 in which the stick may rotate and slide freely, the chuck and steady being spaced apart just over the length of one screw as shown in Fig. 3. After stock feeding, a form tool 6 is advanced to form the top of the head by the part 7, the neck N by the part 8, the shank S by the part 9 and the undersurface of the head by the part 10. The thread is then rolled between opposed rolls 25 of which one is mounted to have slight axial float. The rolls are carried by adjacent arms 23 adjustably connected at 29 to vary the pass under the control of a fine-adjustment screw 31. The end of the steady 33 is provided with flats so that it may clear the bosses on the arms 23. The cross slide 12 for the form tool is fed by rack and segment 15, lever operated from a cam 19. A second cam 47 operates a bell crank 44 coacting with a bell crank 43 carrying a toothed segment for actuating the slide carrying the rolls 25. A pinion 76 on the cam shaft drives, through reduction gearing, a combined wheel 73 and cam 72 loose on the cam shaft anc having a projection 77 operating, through a bell crank and rack and pinion 67, shaft 66 and rack and pinion 55, a slide carrying a parting too] 53 to cut the stock into strips having a predetermined number of screws. The finished strips are collected at 79. Specification 548,655 also is referred to.