baber/WOPTO huggingface dataset:
Patent GB-422984-A (GB)
Title: An electrical eddy current furnace of large capacity
IPC: H05B6/24
Filed: 1934-01-19
Abstract: 422,984. Electric induction furnaces. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET, Vasteras, Sweden. Jan. 19, 1934, No. 1961. Convention date, Dec. 19, 1933. [Class 39 (iii)] The main part of the crucible 1 is in the form of an inverted cone with a vertex angle of at least 45‹ and the winding forms complete turns around the crucible. The cone terminates in a calotte. A plurality of spaced windings 2, 3, 4, on cones of a smaller vertex angle than the crucible, may be provided. The number of turns. per winding increases from the top to the bottom of the crucible. The windings are braced against the iron shell 8 by levers 7 and may be fed with high and low frequency current for controlling heating and stirring independently as described in Specification 423,326.
Patent GB-539326-A (GB)
Title: Improvements in or relating to the steering of trailers
IPC: B62D13/04
Filed: 1940-02-03
Abstract: 539,326. Road vehicle couplings. ARCHER, P. W. Feb. 3,1940, No. 2128. [Class 103 (v)] [Also in Group XXXI] The wheels of a trailer are mounted on swivelling stub axles steered by a T-lever a connected by links g to a bar e which is pivoted at h to a tow-bar f on the trailer and is adapted to be connected at its ends to two points on the towing vehicle (not shown). When the trailer wheels are not to be steered the bar e is locked in its control position by means of a pin b<SP>1</SP> passing through a hole b in a head d of the tow-bar, this head being then coupled to the towing vehicle at a single point. The head d is connected to the towbar f by a pin c which allows it to swivel slightly about the longitudinal axis of the tow-bar.
Patent GB-746031-A (GB)
Title: Method of and apparatus for the distribution of television signals
Inventor: FULLER DENNIS QUINTRELL
IPC: H04H20/78
Filed: 1953-01-26
Abstract: 746,031. Distributing television. PYE, Ltd. Jan. 26, 1954 [Jan. 26, 1953], No. 2196/53. Class 40 (4). In a television distribution system the sync and vision signals are separated at the central station and line and frame scanning waveforms are derived and transmitted modulated on a carrier. This signal may be sent on a different cable from the vision signal cable, or as described the scanning signals are modulated on to a subcarrier which then modulates a carrier which is also modulated by the vision signals. As shown at the central station, Fig. 1, the television signals are received on a receiver 1 and separated into vision and synchronizing signals, the line and frame pulses being separated at 2 and fed to line and frame sawtooth generators 3, 4. These outputs are added in the mixer 5 whose output is fed to the sub-carrier modulator 8. The modulated sub-carrier is added to the vision signal and the result used to modulate a main carrier in the modulator 9 for output to the distributing network. In order to minimize interference in the picture due to interaction between modulation products of the sub-carrier and the main carrier, the subcarrier oscillator 6 is synchronized to the line scan by the injection of line pulses from the sync separator 2. Alternatively, the subcarrier can be obtained from the line scanning frequency by direct frequency multiplication. This ensures that any interference pattern produced will be stationary. To avoid undesirable interaction between the main carrier and harmonics of the sub-carrier the former is obtained by frequency multiplication from the latter. The receiver comprises an R.F. amplifier feeding a detector whose output is amplified and fed to the cathode-ray tube modulating system and also to a sub-carrier filter. The output of the latter is fed to a detector which then feeds a scanning waveform separator which feeds the line and frame scanning circuits, Fig. 5 (not shown). The sub-carrier may be arranged to be just outside the video range and the system may be double or single side-band, Figs. 3 and 4 (not shown). In the latter case two pictures may be transmitted, one using the upper side-band of one carrier and the other using the lower side-band of a slightly lower carrier, the difference in frequencies of these carriers being a multiple of the line scanning frequency if the same line scanning frequency is used for each picture.
Patent GB-1006017-A (GB)
Title: Reflecting device and lighting fittings incorporating the same
IPC: F21V7/04
Filed: 1963-01-17
Abstract: 1,006,017. Reflecters for lighting fittings. L'ECLAIRAGE TECHNIQUE. Jan. 17, 1963 [Jan. 17, 1962], No. 2205/63. Heading F4R. A reflecter for exterior lighting fittings comprises in combination a dome 3 of parabolic form in the upper part for redirecting the light from the source into a zone close to the vertical, a principal surface 4 on the lower periphery of the reflecter formed by paraboloids arranged symmetrically of the longitudinal axis of the reflecter for redirecting the light into the most distant zone between the fittings and an intermediate zone 5 connecting the dome and the principal surface. The dome is bounded at the rear by a vertical surface 8, the light source being mounted so that the non light-emissive parts are outside the reflecting surface. The dome 3 intersects the vertical plane in a parabola the axis of which is inclined to the vertical at an angle between 15 degrees and 35 degrees, the surface of the dome being generated by a family of parabolas lying in planes at right angles to the line M-N with their vortices on this parabola and the loci of their focal points on a straight horizontal line D. The principal surface 5 is fined by two paraboloids of revolution symmetrically arranged with respect to the vertical plane, the plane at the upper edge of the principal surface being inclined at between 55 degrees and 80 degrees to the vertical and passing through the centre of the circle which is the projecter of the light source 7 on the plane. The intermediate zones are constituted by two paraboloids symmetrical to the vertical plane and having parameters the values of which are between those of the parabola of the dome and the paraboloids of the principal surface. The axes of these paraboloids make angles between 6 degrees and 15 degrees with the centre line of the street.
Patent GB-1032833-A (GB)
Title: Composite bearing material
IPC: B29C48/07
Filed: 1965-01-18
Abstract: In a composite bearing material, a hard metal backing strip 10, Fig. 3 (not shown), has a porous sintered metallic matrix 12 bonded thereto and the latter has a film of polyamide plastic 14 (nylon), which incorporates finely particulated molybdenum disulphide particles, impregnated therein.  The amount of molybdenum disulphide particles present is from 0.25 to 5 per cent by weight and preferably from 1.5 to 2.5 per cent by weight. The matrix has a porosity ranging from 10-50 per cent by volume and the polyamide plastic effects a filling of at least 75 per cent and preferably at least 90 per cent of the porosity of the porous matrix.  Finely particulated p.t.f.e. particles from 10 to 20 per cent by weight may be present in the polyamide plastic and the average particle size of the p.t.f.e., may be between 6 and 12 microns.  A film 96 of p.t.f.e., Fig. 7 (not shown) may be provided at the bearing surface, the thickness of the film being from 0.0002 to 0.001 in. but preferably from 0.0003 to 0.0006 inch.  The metal backing strips may be steel and may be plated prior to bonding on the matrix, which may be bronze.  In a method of making the composite bearing material a metallic powder 22 for forming the sintered porous matrix, Fig. 1 (not shown), is distributed uniformly across the backing strip 10 by means of a doctor-blade 24 and the strip is advanced into a sintering chamber 25 of a furnace 26 and is then passed into a cooling chamber 30. The strip may then be wound on to a take-up reel 32 or may be advanced directly into a pre-heat section 36, Fig. 2 (not shown) of a furnace 38, after which it is passed beneath an extrusion assembly 42, comprising a hopper 46 containing particulated or pelletized nylon plastic 48 incorporating molybdenum disulphide particles therein. The mixture is heated in a heating-section 50 and is extruded through a die 52 to form a film 44 which passes beneath a roll 56 and between impregnating rolls 60, having gaps which progressively decrease towards the right.  The resulting composite bearing material 62 is passed to a cooling section 64, is passed through sizing rolls 66, 661 and on to a take-up-reel 68.  In a modification, the molten plastic and molybdenum disulphide is applied to the matrix directly from a die 72, Fig. 4 (not shown), having a cavity 74 therein.
Patent GB-977950-A (GB)
Title: Improvements in and relating to directional lighting fittings
IPC: F21V21/00
Filed: 1962-01-22
Abstract: 977,950. Floodlights and other directional lighting arrangements. J. STUDHOLME, and BENJAMIN ELECTRIC Ltd. April 22, 1963 [Jan. 22, 1962], No. 2250/62. Heading F4R. A directional lighting fitting comprises a reflector mounted for angular adjustment on a support, and a telescope removable retained on the reflector in a position which lies along the beam axis of the reflector or on axis which is converging with respect thereto. As applied to a floodlight of the kind described in Specification 937,366, the telescope 32 is carried in a cylindrical projection 34 on a plate 30, an annular projection 35 on the telescope engaging a shoulder 36 on the plate. The plate 30 is provided with projections 31 corresponding to the projections on the lamp housing, so that the housing can be removed from the rear of the reflector and replaced by the plate, the axis of the telescope then co-inciding with the axis of the light beam from the floodlight.
Patent GB-452398-A (GB)
Title: Apparatus for agglomerating or briquetting pulverulent coal and other granular substances
IPC: B30B11/16
Filed: 1936-01-24
Abstract: 452,398. Moulding briquettes. RODRIGUEZ, D. F., 14, Calle Mallorca, Reinosa, Santander, Spain. Jan. 24, 1936, No. 2279. Convention date, Jan. 24, 1935. [Class 87 (ii)] In a machine having oppositely-rotating cylinders provided with mould cavities V for briquetting coal or other material, the compression is adjusted by regulating the amount of pulverulent material supplied to the moulds. The cylinders are fed by gravity from a hopper T and are provided between each pair of cavities with sliding members D adapted to be moved upwardly by adjustable eccentric members E. As the cylinders rotate, the members D are forced inwardly by the engagement of their ends X, and the material imprisoned thereby is compressed into the moulds. The eccentrics E for determining the outward movement of the members D, and hence the amount of material applied to the moulds, are adjusted simultaneously by linkwork operated by a screw spindle K.
Patent GB-623080-A (GB)
Title: Improvements in or relating to gyroscopic instruments
IPC: G01C19/38
Filed: 1947-01-24
Abstract: 623,080. Gyroscopic apparatus. SPERRY GYROSCOPE CO., Inc. Jan. 24, 1947, No. 2355. Convention date, Jan. 25, 1946. [Class 97 (iii)] A gyroscopic instrument erected or precessed by means of air jets issuing from ports in the rotor casing is provided with an air-penetrable screen disposed between the rotor casing and the walls of the instrument case in the vicinity of the air-jets and spaced from the walls so as to form an air-trap to prevent unwanted reflection of the jets by the instrument case. As applied to a gyro-vertical of the kind described in Specification 623,078 a perforated or porous cylindrical screen 28, which may be of metal, spun glass or of a plastic material, is placed adjacent to the walls of the case 11 in the vicinity of the exhaust ports 22 in the shell 21 so as to spoil the jets from the pitch-erection ports. The screen 28 is seated in the first step 27 of a two-step annular recess 25 cut in the walls of the case 11, the second step 26 forming an airtrap 30 between the screen and the walls which extends a sufficient distance longitudinally to trap all erection jets which would otherwise be reflected back on to the shell 21. In a modification the screen is spaced away from the walls by being provided with a centrallydepressed central annular portion extending over the greater proportion of its length. Specification 530,549 also is referred to.
Patent GB-868706-A (GB)
Title: Inertia starter
Inventor: DANILEWICZ LUDOMIR
IPC: F02N5/04
Filed: 1957-09-24
Abstract: 868,706. Turning gear. INSTART DIESEL COMPONENTS Ltd. Sept. 11, 1958 [Sept. 24, 1957], No. 2358/60. Divided out of 868,705. Addition to 780,062. Class 7(5). In an inertia starter of the kind incorporating a gear arrangement for transmitting drive between the starter flywheel 1 and the crank-shaft of an engine and comprising rotary input and output members 13 constrained to limited angular movement and connected by a coupling member arranged to rotate about a moving axis, the members having to be reset to a starting position after each drive-transmitting movement, a differential mechanism 5 consists of an element 6 arranged to be driven by a handle 7, an element 4 arranged to drive the starter flywheel, and an element 8 arranged to drive the members 13 back to the starting position thereof and move the starter pinion 16 into engagement with the engine flywheel 17. A clutch 21 splined on element 8 is moved by a cam 18 constrained to turn with the member 13 so as to lock elements 6, 8 together when the members 13 reach their starting position in order to reduce the ratio of the speed of the element 8 to that of the element 6. As shown, the flywheel 1 is connected by step-up gears 2 with a crown-and-pinion 3 driven by the differential 5 which in turn drives a differential 11 through worm and worm wheel 9, 10. The pinion 16 is actuated by a screwed shaft 15 driven by the differential 11. Due to the inertia of the flywheel 1 the elements 4 of the differential 5 are initially fixed and the drive passes to the element 8 which acts as a step-up gear. When the members 13 are reset and the members 6, 8 locked together the handle 7 turns the flywheel 1 by way of crown-and-pinion 3. The flywheel 1 is then coupled through the gears 2 by a clutch 22 to the members 13 to start the engine.
Patent GB-588123-A (GB)
Title: Improvements relating to conduit fittings for electric conductors
IPC: H02G3/06
Filed: 1945-01-31
Abstract: 588,123. Grub-screws. SIMPLEX ELECTRICCO., Ltd., DAVIS, A. F., and ARNOTT, F. G. Jan. 31, 1945, No. 2401. [Class 89 (i)] [Also in Groups XXVIII and XXXVI] A conduit fitting 10 is provided with one or more tubular extensions 11 to each of which the end of a conduit tube 12 is mechanically secured and electrically bonded by a set screw 15 passing through a tapped hole in a boss 14. The inner end 16 of the screw is of tubular form, the edge thereof being provided with hardened ratchet teeth 20 which cut into the enamel of the conduit 12.
Patent GB-489613-A (GB)
Title: Dyeing process for cellulose esters or ethers
IPC: C08L1/08
Filed: 1937-01-27
Abstract: Coloured filaments, films or foils of cellulose esters, e.g cellulose acetate, or ethers, e.g. ethyl- or benzyl-cellulose, are made by forming a solution, e.g. in acetone or tetrachlorethane, containing the esters or ethers and azoic dyestuff components, capable of combining to azoic or ice colouring matters, into filaments &c. and developing the colour by treatment with nitrous acid.  The latter may be applied as vapour or in aqueous or aqueous alcoholic solution. Further treatment in a weakly alkaline bath may be necessary.  In examples: (1) 2-hydroxy-3-naphthoyl-21: 51-dimethoxy-aniline, 4-nitro-2-aminotoluene, and cellulose acetate are dissolved in acetone and the solution is formed into filaments which are immersed in an aqueous solution containing sodium nitrite and sulphuric or acetic acid; (2) the dyestuff components of (1) are prepared in a separate acetone solution and added to an acetone solution of cellulose acetate and the solution is formed into filaments, films or foils which are further treated as in (1); (3) the cellulose acetate in (1) is replaced by ethylcellulose; (4) the components of (1) and ethyl cellulose are dissolved in ethyl alcohol and the solution is made into a film by evaporation and developed as in (1).  Other pairs of components specified are the p-chlor-anilide of 2 : 3-hydroxycarbazole-carboxylic acid with 5-nitro-2-aminoanisole and 2 - hydroxy - 3 - naphthoyl - 21 - toluidine with 4 - chloro - 5 - amino - 2 - benzoylaminoanisole.  Specifications 375,393 and 441,421 are referred to.
Patent GB-787881-A (GB)
Title: Improvements in and relating to tunable electrical amplifier stages
IPC: H03H2/00
Filed: 1956-01-25
Abstract: 787,881. Impedance networks. PHILCO CORPORATION. Jan. 25, 1956 [Jan. 26, 1955], No. 2453/56. Class 40 (8). [Also in Group XL (c)] The invention relates to input coupling circuits more particularly for use in television receivers. In such receivers for optimum results it is often required to couple a balanced input to a single triode first stage and to make the apparent source impedance as near as possible equal to the value which gives the minimum noise figure of the amplifier. This desired impedance value decreases as the frequency increases and the present invention is concerned with a coupling arrangement which provides a variation of the apparent source impedance of the required kind over a wide frequency range so that the receiver can be tuned to operate effectively on a number of channels. In one embodiment the balanced aerial input is applied at 10, 12 and coupled through capacitors 24, 27 to the two ends of an adjustable tuning inductor 30. One end of this inductor is also connected to the grid of triode 40 and the other is coupled to ground through a capacitor 42 equal to the grid-cathode capacity of the valve 40. Unbalance due to this capacity is thus overcome. The effect of the grid-anode capacity is compensated for by the insertion of capacitor 48. Between the input connections 10 and 12 are connected equal resistors 14 and 16 with their centre point earthed and equal capacitors 25 and 26 with their centre point earthed. An A.G.C. voltage may be applied to the grid of valve 40 by the connection shown. The inductor 46 is tuned to resonate with capacitance 44 at a frequency below the range of operation. Fig. 3 shows the nature of the optimum source resistance (1/Gs) with frequency curve and an example of a possible curve for apparent source impedance Rp/2 with the circuit given. Equations are given relating Gs and Rp to the system parameters. It is shown to be possible to move the Rp/2 curve vertically by altering the values of capacitors 25 and 26. A similar effect is caused by the introduction of a capacitor 28 and it is thus possible to make the two curves follow each other very closely over one part of the frequency coverage with capacitor 28 disconnected and then bring it into circuit for close agreement between the curves in another part of the frequency range. Simpler circuits producing results approaching that of the circuit of Fig. 1 are described with reference to Figs. 5 and 6 (both not shown). In the first of theseno switched capacitor 28 is used and capacitors 25 and 26 (with their earth connection) are replaced by a single capacitor directly connected between the terminals 10 and 12. In the second even this single capacitor is omitted. The effect of the simplifications on the performance of the arrangement is described.
Patent GB-342123-A (GB)
Title: Improved folding step for vehicles
IPC: B60R3/02
Filed: 1930-01-24
Abstract: 342,123. Vehicle steps. OVERTON, W., March Street, Walsall. Jan. 24, 1930, No. 2467. [Classes 103 (iv) and 108 (i).] In a hinged vehicle step b which is capable of being folded against an attachment plate a, the hinge at each side of the step is formed by a short link c and a tie link e, the link e being recessed to form an abutment for the link c. The links may work in recessed parts h of an opening in the plate a, or, in a modification, in slots in a solid plate. The step face may be roughened or provided with a non-slip surface and a catch n may be provided for holding the step in the closed position.
Patent GB-1481491-A (GB)
Title: Combination book enclosure and reading lamp device
IPC: F21V33/00
Filed: 1975-01-21
Abstract: 1481491 Lamp combined with a book enclosure N D WISE 21 Jan 1975 [5 Feb 1974] 2519/75 Heading F4R A combination book enclosure and reading lamp device comprises first and second cover portions 15, 16, a spine portion 17 which extends at a fixed obtuse angle from the first cover portion 15 and which is hinged at 34 to the second cover portion 16, a lamp housing 42 disposed at the outer margin 19 of the first cover portion 15 and having an upper edge 48 which releasably retains the outer edge 22 of the second cover portion 16 when the enclosure is closed and a lamp 44 within the housing for illuminating the book, and a flexible link 56 extending between the ends of the spine 17 for passing between pages of the book to retain the bookspine against the spine portion 17. The cover 16 has sufficient flexibility to assist the engagement of the tongue 50 thereof with the groove 49 in the lamp housing 42 to close the enclosure. The lamp 44 includes a bulb 43 disposed at the focus of the generally cylindrical, parabolic part of the reflector 46, planar end reflectors 91, 92 also being provided to give a fan-shaped beam. The lamp may be powered from batteries, which may be rechargeable, in container 51, or from a mains supply. The spine 17 may be integrally formed with the cover portion 15 and disposed at an angle of 110 to 140 degrees with respect thereto, and and the hinge 34 permits the cover portion 16 to swing through 110 degrees with respect to to the spine. The releasable fixing of the link 56 to the spine at 37 may be adjustable to properly accommodate books of different thickness, Figs. 4 and 5, (not shown).
Patent GB-880064-A (GB)
Title: Improvements in road vehicles
Inventor: CHAPLIN WILLIAM DAVID
IPC: B62D53/06
Filed: 1958-01-24
Abstract: 880,064. Steering trailers. CRANES (DEREHAM) Ltd. Jan. 24, 1958, No. 2526/58. Class 79(5). [Also in Group XXXII] A road vehicle bogie for supporting loads direct or for supporting the swan neck of a low loading platform (not shown) has eight pairs of wheels 9. Each pair is carried by a respective axle which is carried at the lower end of a vertically extending hydraulic piston and cylinder device 11 (see Group XXXII). The cylinder of each device 11 is rigid with the vehicle frame 1 and the piston, connected to the axle 10 is rigid with an arm 30 of a steering mechanism 31. As shown, only the first row of wheels is steerable but they may all be steerable if desired.
Patent GB-1219323-A (GB)
Title: Improvements in a stress graded cable termination
IPC: H01B9/02
Filed: 1968-01-17
Abstract: 1,219,323. Terminating cables. GENERAL ELECTRIC CO. 17 Jan., 1968 [18 Jan., 1967], No. 2588/68. Heading H2E. A terminated high voltage cable, especially for use in apparatus for determining the ionization level of the cable, comprises a conductor 12, which may be covered with semiconducting tape (14, Fig. 1, not shown); insulation 16; a grounded shield comprising a semi-conducting layer 18 and metallic tape 20; an outer jacket 22; and a semi-conductive coating 24 having a predetermined resistance per square and extending for a predetermined length on insulation 16 from the shield 18, 20 to the conductor 12 such that on application of a voltage for which the cable is designed, the coating 24 has a substantially linear current characteristic and the longitudinal gradient of the applied voltage at the surface of coating 24 does not exceed the ionization level of the coated terminus. The terminus may be protected by insulating tape (26, Fig. 14, not shown), e.g. polyvinyl chloride. Layer 16 may be cross-linked polyethylene or ethylenepropylene with clay fillers; tape 20 copper; jacket 22 polyvinyl chloride; and coating 24 high resistance paint comprising carbon black filler and resin binder.