baber/WOPTO huggingface dataset:
Patent GB-675119-A (GB)
Title: Improvements in or relating to thermionic valve integrating circuits
Inventor: LEVY MAURICE MOISE
IPC: G06G7/184
Filed: 1949-11-17
Abstract: 675,119. Saw-tooth generating circuits; pulse modulation circuits; integrating circuits. GENERAL ELECTRIC CO., Ltd. Nov. 6, 1950 [Nov. 17, 1949], No. 29459/49. Classes 40 (v) and 40 (vi). A Miller integrator circuit comprises a unidirectional conductive device which is connected so that the normal direction of current flow through it is in such a direction as to recharge the Miller capacitor. The device is normally held non-conducting but a voltage pulse is applied to it at the end of the integration period of the Miller valve to render it conductive, thus rapidly re-charging the Miller capacitor and restoring the integrator circuit to its initial condition. Fig. 1 shows a sawtooth voltage generator in which the Miller capacitor 2 is initially charged so that the anode of pentode 1 is approximately at earth potential, and the control grid at the anode current cut-off point. During the integrating period the anode potential of the Miller valve 1 runs-down linearly and valve 3 is biased beyond cut-off. At the end of the linear sweep period a positive pulse of large amplitude is applied to the control grid of triode 3 from source 15 so that its cathode voltage rises and the anode voltage of the Miller valve 1 returns rapidly to earth potential, so that a short fly-back period is obtained. The Miller valve 1 is prevented from conducting during the re-charging period of capacitor 2 by applying the large negative pulse produced at the anode of triode 3 during the presence of the positive pulse on its control grid, to the suppressor grid of the Miller valve via capacitor 10. The negative-going sawtooth waveform may be taken from the anode of the Miller valve 1. The circuit may be used as an integrator of a voltage or current which is applied between the control grid and cathode of the Miller valve the integrated output being taken from the anode circuit. Fig. 2 shows a modification which may be used as a demodulator in a pulse communication system employing pulses modulated in either width or amplitude. The train of positive going pulses to be demodulated is applied via diode 17 to the control grid of Miller valve 1<SP>1</SP> to discharge the Miller capacitor 21 through the valve 11 to an extent dependent upon the amplitude and duration of the applied pulse. At the end of each channel pulse, triode 3<SP>1</SP> is rendered conducting by a large positive-going pulse applied from source 151 to its control grid so that valve 1<SP>1</SP> is cut-off and the Miller capacitor 21 recharged. The anode voltage variations are amplified in unit 20 and passed through the low-pass filter 21 to give the demodulated signal at terminals 22. The circuit may be used as a demodulator in a time division multiplex system the pulses from source 15<SP>1</SP> may then be synchronized with the gating pulses used to select the channels for passing to each demodulator.
Patent GB-1377093-A (GB)
Title: Gas dosimeters
IPC: G01N1/24
Filed: 1972-06-22
Abstract: 1377093 Portable gas dosimeter BRITISH STEEL CORP 22 June 1972 [23 June 1971] 29487/71 Heading G1B In a portable gas dosimeter, a motor 3, activated by, for example, a nickel cadmium cell 2 drives a diaphragm pump 4 so as to draw contaminated air through an indicator tube 10 via a flowmeter 14 and tube 13. If carbon monoxide is to be detected, the tube 10 contains a cleaning layer 12, and granular silica gell impregnated with iodine pentoxide, sulphuric acid, and a selenium compound catalyst. A brown stain of iodine is released on reaction with carbon monoxide, the length of the stain, as measured by markings 11, indicating the dose of CO impurity experienced. A palladium salt may be used as the reacting agent. The time of operation of the dosimeter is measured by a counter arrangement 17 driven via a sprocket 18 and worm gear 19 by the motor 3.
Patent GB-800383-A (GB)
Title: Improvements in or relating to covering sleeves for use with traffic and other posts
IPC: E01F9/011
Filed: 1955-10-17
Abstract: 800,383. Ornamenting. GOWSHALL, B. Oct. 4, 1956 [Oct. 17, 1955], No. 29510/55. Class 93 [Also in Group XVIII] A transparent or coloured non - frangible covering sleeve for a post. The internal diameter of the sleeve is slightly larger than the external diameter of the post and the sleeve has integral curved or conical internal projections. Specification 777,617 is referred to.
Patent GB-699723-A (GB)
Title: Improvements in or relating to railway and tramway rail and wheel flange lubricators
Inventor: RIGBY HUGH JOHN MACBETH
IPC: B61K3/00
Filed: 1951-12-18
Abstract: 699,723. Lubricating rails and wheel flanges. MILLS, Ltd., EXECUTORS OF J. Dec. 12, 1952 [Dec. 18, 1951]. No. 39561/5]. Class 12 (iii). A railway and tramway rail and wheel flange lubricator, of the kind adapted for mounting on the track and comprising a reservoir for lubricant and lubricant-feeding means operated by the passage along the track rails of one or more vehicles, is provided with means for re-charging the reservoir, comprising a manually-operable pump detachable from a removable lubricant container, the charging of the reservoir being effected by periodical manual operation of the pump. In the arrangement shown, the lubricator is of the type described in Specification 610,637, comprising a reservoir 10 containing a weighted spring-pressed piston and adapted to be resiliently supported from the rail, the vibrations of the rail, on passage of a vehicle, being utilized for feeding the lubricant to the side of the rail head. A connection 17 is made at the base of the reservoir to one end of a flexible pipe 18, the other end of which is connected to the delivery port of a manuallyoperable rotary pump 20. The pump is mounted on a detachable lid 21 of a container 23 into which extends a pipe 24 connected to the inlet port of the pump. By rotation of the handle, lubricant is fed to the reservoir 10. The lid 11 of the reservoir may have an opening through which can be inserted a dip-stick 28. The invention may be applied to other types of lubricators, for example to a lubricator having one or more plungers operated positively by the wheels of the passing vehicles or by the vertical deflection of the rail. Specification 437,189 also is referred to.
Patent GB-307317-A (GB)
Title: Improvements in or relating to telephone receiving and transmitting apparatus
IPC: H04M1/215
Filed: 1927-11-05
Abstract: 307,317. Allen, T. G. Nov. 5, 1927 Receiving sets comprising amplifiers and loudspeakers.-A telephone receiver B can be sup. ported above a microphone H or other apparatus in circuit with a loud-speaker E, a valve amplifier J3 being preferably also provided. A contact in the microphone or other circuit is automatically closed when the receiver is inserted in the bracket Jx. The desk set may be arranged so that its mouthpiece C registers with the inner end of a trumpet-shaped member F arranged above the loud-speaker. The vibrations of the diaphragm of the receiver B may be communicated to the microphone H by (1) a column of air, (2) a body of liquid in a rigid cup or flexible container, (3) a rigid bar, (4) a resonating sound board, (5) a permanent bar magnet, or (6) a bar magnetized by a winding in parallel with the microphone or energized by a separate battery. The Provisional Specification states that a lamp or voltmeter may be arranged in the amplifier circuit to indicate that the battery is in order.
Patent GB-814177-A (GB)
Title: Improvements in or relating to carton forming machine
IPC: B31B3/48
Filed: 1955-10-19
Abstract: 814,177. Making boxes. JOHNSON, A. Oct. 19, 1955 [Oct. 27, 1954], No. 29828/55. Class 18. A machine for folding up a tray-form carton from a blank 61 comprises a plunger for carrying the blank through a folding die, fingers rotatable to fold extensions 86 of two opposite sides 82 over tabs 72, 76 of the remaining sides, and means to eject the formed carton from the die. The plunger 47 depends from a cross bar 31 reciprocating in slots 29 in standards 26. The blank is placed on a tray 61, Fig. 1, and is first pressed by the plunger against shoulders 91 which fold up the tabs 72, 76. It then contacts shoulders 92, 96 to fold up sides 68, 74 and 82. Flaps 80 on the lid enter slots on either side of the die, (Fig. 8 not shown), extending in the plane of the lid. As the plunger continues downwardly, it engages spring loaded jaws 101, 116 forcing them outwards so that their lower ends 113, 124 release the previously formed carton 131. It also engages the lid 78 of this carton, bowed outwards by springs 141, Fig. 5, and a finger 159, Figs 4, 13, operating an ejection member 146. Thus the carton 131 is ejected from the die by the plunger acting on its lid and by the member 146 pressing downwards its front wall 68. When the plunger reaches the bottom of its travel, the jaws 101, 116 are again in their inner position and support the partly folded blank. The plunger rises, lips 122 on the jaws 116 and friction between the flaps 80 and the slots, preventing the blank following. Grooves 48, 50 in the plunger permit it to clear the jaws and members 141, 159. Upward movement of the plunger initiates rotation of shafts 212, the shafts being chain driven from cranks 203 connected by rods 201 to members 33 secured to the cross bar 31. Rotation of the shafts 212 causes fingers 216, Figs 4, 15 to engage the extensions 86 to fold them inwards against the tabs 72, 76 retaining flaps 88 being pressed against the carton base to complete the folding. The machine may be hand operated as shown, or downward movement of the plunger may be produced by hydraulic or pneumatic piston and cylinder means. Springs 41 raise the plunger.
Patent GB-843733-A (GB)
Title: Improvements in and relating to liquid fuel cigarette lighters
IPC: F23Q2/08
Filed: 1958-09-18
Abstract: 843,733. Cigarette lighters ; lighter wicks. COENDERS, A. Sept. 18, 1958, No. 29865/58. Classes 75(1) and 75(3). In a cigarette lighter in which the liquid fuel contained in a reservoir is not absorbed by cotton wool or other absorbent material and a spring loaded wick tube is equipped with a sealing ring which surrounds the tube and moves with the tube when the tube is moved by the opening and closing of the snuffer cap. The lighter includes, in combustion, a vaulted recess in the bottom of the snuffer cap and the provision for the sealing ring to be capable of being compressed in a longitudinal direction. In the arrangement shown in Figs. 1 and 3, an annular projection 38 formed on the snuffer 25 engages, when the snuffer cap is in the closed position, a sealing stopper 35 surrounding a tube 40 to seal off the fuel, contained in a reservoir 10, from atmosphere. When the snuffer cap 22 is closed fuel passes, by capilliary action, through a space 51, formed between the sealing ring 46 and the lower flared end 41 of tube 40, and a space 47, between the bore of the tube 40 and a wick tube 44, into the wick 49. When the snuffer cap 22 is depressed to lift the snuffer 25, the projection 38 disengages the sealing stopper 35 and the sealing ring 46 is moved upwards by a spring 43, through the intermediary of a collar 45 formed on the tube 44, to engage the flared end 41 to seal off the reservoir 10 to atmosphere. Continued upward movement of the snuffer 25, Fig. 3, enable the spring 43 to move the wick 49 to the ignition position and to compress the sealing ring 46 against the flared end 41. When the snuffer cap 22 is closed the snuffer 25 engages a metal strip 50, extending downwardly through the wick 49 to the closed bottom of a tube 48 containing the wick 49 and removably mounted in the tube 44, to depress the wick 49. The projection 38 firstly engages the sealing stopper 35 while the sealing ring 46 is in contact with the flared end 41. Further depression of the snuffer cap 22 moves the sealing ring 46 away from the flared end to allow the wick 49 to be recharged with fuel. The wick 49 may be made of glass fibre. Specification 806,746 is referred to.
Patent GB-1012487-A (GB)
Title: New, water-soluble dyestuffs of the azo- and anthraquinone series containing the glyoxaldiureine radical and process for the preparation thereof
IPC: C09B43/12
Filed: 1962-08-03
Abstract: The invention comprises water-soluble dyes of the azo and anthraquinone series of formulae <FORM:1012487/C4-C5/1> and <FORM:1012487/C4-C5/2> wherein Z is the radical of an azo or anthraquinone dye, A is a divalent aryl or aralkyl radical, X is -NH- or -N(alkyl)-, Y is hydrogen or the group -A-SO2-X-Z -(SO3H)n, n is an integer from 1-4 and m is an integer from 1-6 and the methylol compounds of these dyes in which the hydrogen atoms of the glyoxal-diurane radical susceptible to reaction with formaldehyde have been replaced by methylol groups.  The dyes may be prepared by condensing a compound of formula <FORM:1012487/C4-C5/3> wherein R is H or -A-SO2Cl, with an azo or anthraquinone dye containing an -NH2 or -NHalkyl group.  Intermediate products, for example diazo components may be similarly condensed and subsequently converted by a coupling reaction into azo dyes. The dyes are methylolated by treatment with formaldehyde in aqueous alkaline medium and the methylolated dyes are used to dye and print textiles as described in Specification 900,764. The preparation of mono- and dis-azo, metallized azo and anthraquinone dyes is described in examples.ALSO:The preparation of compounds of formula <FORM:1012487/C2/1> wherein A is an arylene radical and R is H or -A-SO2Cl is described.  They are used in the preparation of dyes (see Division C4).  N - (4 - chlorosulphonylphenyl) - glyoxaldiureine is prepared by condensing phenylurea with glyoxalmonoureine in acid medium to give 4-phenylglyoxaldiureine which is chlorosulphonated with thionyl chloride.  N,N11 - di - (4 - chlorosulphonylphenyl)-glyoxaldiureine is prepared by condensing phenylurea with glyoxal in acid medium to give N,N11-diphenylglyoxaldiureine which is chlorosulphonated as above.  Specification 900,764 is referred to.
Patent GB-862031-A (GB)
Title: An improved method of and apparatus for ultrasonically testing butt welds
Inventor: BINCER HANS
IPC: G01N29/24
Filed: 1958-09-19
Abstract: 862,031. Ultrasonic wave couplings. BABCOCK & WILCOX Ltd. Sept. 18, 1959 [Sept. 19, 1958], No. 30035/58. Class 40 (4). [Also in Group XL (c)] For inspection of a butt weld 63, Fig. 9, a probe 4 carries transducers which direct ultrasonic waves in different directions 10, 11 and is rocked in the plane of the paper on the surface of workpiece 60. It is stated that attenuation is thereby reduced as compared with an oscillatory probe head arrangement as described in Specification 803,551 and deeper welds may be examined. The probe consists of transmitting and receiving sections 1, 21, Fig. 5, separated by a layer of acoustic insulation 17. The transmitting section comprises a block of transparent plastic 9, see also Fig. 1, on which is provided fault-finding transducers 2A, 2B and contacttesting transducers 3A, 3B arranged to operate as described in Specification 778,166, a predetermined delay being provided between the pulses supplied to the former and the latter transducers and the received echoes being displayed on a cathode-ray tube (C.R.T.); the display is photographed to provide a record. The inclination of facet 5 is such that the beams 12, 13 from transducers 3A, 3B intersect face 4 at respective regions corresponding to the beams 10, 11 from transducers 2A, 2B. The gap between the base of the probe and the workpiece is filled with a liquid couplant. Further transducers may be provided for inspection of weld 63 at more than two depth regions, with a corresponding increase in the number of transducers for contact testing. The regions tested are arranged to overlap. For inspecting workpieces having flat or concave outer surfaces the contact face of the probe is made convex. The probe is mounted on a carrier arranged to be rocked in a carriage movable along a track by a mechanism as described in Specification 803,551. Springs urge opposite ends of the probe carrier towards the workpiece and, to impart the rocking motion, the springs are compressed by oppositely phased eccentrics driven from a common shaft, Figs. 10 ... 13 (none shown). The carriage for the probe carrier carries a switch lever co-operating with equidistantly spaced actuators on a track rail so as to show by an indication on the C.R.T. the location along the weld to which the test results relate. According to the Provisional Specification the transducers are piezo-electric.
Patent GB-1479282-A (GB)
Title: Conveying of gases
IPC: F17D1/02
Filed: 1974-06-25
Abstract: 1479282 Gas-dust separators AMERICAN AIR FILTER CO INC 25 June 1974 [25 June 1973] 30121/73 Heading BIT [Also in Division F4] An installation for conveying dust laden gases from their source of emission, e.g. process vessels or machines, comprises a first plenum chamber 10 to which the gases are supplied via a plurality of suction ducts 17, a plurality of outlet ducts 15 each provided with a suction fan 11, ducts 16 connecting the outlet sides of the fans 11 to a second plenum chamber 12, and dampers 13 and 14 operative for regulating the flow through each of the fans to thereby control the rate of extraction of the dust laden gases. The plenum chamber 10, which affords thorough mixing of the entering gas streams which may contain differing concentrations of contaminants or have widely differing temperatures, serves to equalise the temperature and pressure of the gases drawn thereinto before removal along the outlet ducts 15. Dust particles etc. separated out as the gases flow through the plenums 10 and 12 are collected in hoppers located therebelow. The plenums may be provided with guide vanes or baffles, and the ducts 15 and 16 may be suitably inclined to prevent silting. The outlet 18 from the second plenum chamber may be connected to gas treating equipment (19 Fig. 4 not shown).
Patent GB-1022551-A (GB)
Title: Improvements relating to motor vehicles
Inventor: HILL CLAUDE
IPC: B60K17/346
Filed: 1961-08-22
Abstract: 1,022,551. Driving arrangements. HARRY FERGUSON RESEARCH Ltd. Aug. 15, 1962 [Aug. 22, 1961], No. 30187/61. Heading B7H. In a sports motor vehicle of low construction, an engine 46 drives the front and rear wheels 44 and 45 through an hydraulic torque converter or change-speed gear 48, transfer box 49, propeller shafts 50 and 51 and differential gears 47 and 52. The transfer box (not shown) comprises a differential consisting of an input shaft 11, planets 13 mounted on a carrier 12, and sunwheels 14 and 15, the sleeve 17 of the sun-wheel 14, which constitutes one output shaft of the differential, being splined to the shaft 11 and drivingly carrying a sprocket wheel 32, the sleeve of the sun-wheel 15, constituting the other output shaft of the differential, being connected by a shaft 16 to a forked member 31 to which the rear wheel propeller shaft is connected by a universal joint, and the sprocket 42 being connected by chains to a sprocket drivingly connected to a shaft from which the front wheel propeller shaft 30 is driven through a universal joint, means 19 being provided limiting the difference in speeds between the front and rear propeller shafts and having a rotatable housing geared through pairs of gear-wheels 20, 21 and 22, 23 to the rear output shaft 16 and through gear-wheels 24, 25 to a sleeve 12A extending rearwardly from the planet carrier 12. The shafts 11 and 16 are coaxial and the axes of the shaft 11 and the shaft of sprocket driving shaft 30 lie in a plane which makes an acute angle with that containing the axis of the shaft 11 and the rotary axis of the device 19. The casing 10 is extended to include the sprockets 33 and 34 and in the extension is mounted an hydraulically operating chain tensioning device.
Patent GB-1126785-A (GB)
Title: Ballast arrangement for tank ships
Inventor: GROCOTT GEOFFREY JOSEPH
IPC: B63B3/14
Filed: 1966-07-06
Abstract: 1,126,785. Ballast bags for tankers. BRITISH PETROLEUM CO. Ltd. 16 May, 1967 [6 July, 1966], No. 30267/66. Headings B7A, B7M and B7S. In a tank ship at least one cargo tank contains secured therein a collapsible ballast bag 10 suitable for containing ballast water, each bag being supported on a grating 11 near the bottom of the tank so that the ballast bag is clear of the sump 18 and the inlet 19 which also serves as an outlet. On pumping out the ballast water air inlet 21 is opened so that pipes and pump 16 are not damaged as any remaining water in them is cleared into the ballast bag, which being flexible accommodates expansion of the water on liquefied gases being loaded. Contamination is avoided and increase of cargo carrying capacity is achieved.
Patent GB-435960-A (GB)
Title: Improvements in electric cables and conductors
IPC: H01B7/16
Filed: 1934-10-23
Abstract: 435,960. Cables. FODOR, G., 11<bis>, Rue d'Aguesseau, Paris. Oct. 23, 1934, No. 30419. Convention date, Oct. 28, 1933. [Class 36] Cables having magnesium oxide insulation are produced by applying to the single or stranded conductor magnesium in any convenient form such as tube, spiral, tape, or sectors, surrounding the assembly with a covering or braiding of textile or other fibrous material and converting the magnesium into oxide in any suitable known manner. The conversion of the magnesium into oxide may be effected in an autoclave by treatment with superheated steam at a temperature not exceeding 400‹ C., the cable being coiled on drums provided with means for separating the individual loops. The cable may subsequently be provided with a lead sheath. The Specification as open to inspection under Sect. 91 comprises the production by this method of cables insulated with any metallic oxide. This subject-matter does not appear in the Specification as accepted.
Patent GB-177827-A (GB)
Title: Improvements in or relating to dynamo electric machines and method of constructing the same
IPC: H02K1/18
Filed: 1920-10-27
Abstract: 177,827. Wiard, J. B. Oct. 27, 1920. Casings; dynamos and motors; cooling and ventilating.-The casing of a dynamo-electric machine is made of an elastic material with an unstressed diameter slightly less than the external diameter of the stator, so that when the stator is forced into the casing it will be gripped by the elasticity of the casing. In the form shown, the stator 4 is of the laminated type, the laminations being held together by clamps 8, and the casing 5 is formed of corrugated metal, the summits 9 of the corrugations bearing on the surface of the stator. Notches may be formed in the stator to receive the corrugations. When the stator has been fitted into the casing the ends are machined to fit the end shields 10, 11 which may be secured by bolts 12 screwing into the ends of the clamps 8. The spaces enclosed by the corrugations of the casing may be used as ventilating channels, air being circulated through them and through passages 15 in the rotor by fan vanes 14.
Patent GB-1070528-A (GB)
Title: Plastic cigarette lighter casing
IPC: F23Q2/167
Filed: 1964-08-04
Abstract: 1,070,528. Cigarette lighters. FLAMINAIRE MARCEL QUERCIA. Aug. 4, 1964 [July 25, 1963], No. 30473/64. Heading F4F. A cigarette lighter has two moulded parts 2, 3, hinged together at 6 and retained in their closed position by a metal clip 4 pivoted on a pin 5, the clip 4 having an aperture 9 adjacent the striker wheel 17 for the flame. A lever 20 pivoted at 5 has a camming surface 22 to bear against the fuel container 1 so that when the lever 20 is depressed the container 1 is forced against a projection 11 on the easing part 3 to open a fuel valve to allow fuel to pass to the burner tube 7 via the channel 13. A resilient ring 10 surrounds the valve to seal the outlet. A headed pin 33 inside the flint spring 29 is held behind the abutment 30 to allow ready replacement of the flint.