baber/WOPTO huggingface dataset:
Patent GB-282392-A (GB)
Title: Improvements in and relating to electrode holders for arc welding
IPC: B23K9/133
Filed: 1927-12-13
Abstract: 282,392. Sarazin, R. Dec. 18, 1926, [Convention date]. Heating by electricity.-In a hand tool carrying rollers 6 operated by a flexible shaft 1 for feeding an arc-welding electrode, the shaft is hollow and forms a guide through which the electrode is pulled by the rollers. The shaft drives the rollers through bevel wheels 3, 4, and toothed wheels 5. The motor driving the shaft 1 is automatically controlled by the are. The shaft may be covered by an insulated copper sheath which leads the current to the electrode. The Specification as open to inspection under Sect, 91 (3) (a) describes a holder 3, Fig. 3 (Cancelled), containing a motor 7 which drives the feed rollers through toothed gearing 6 and worm gearing 4, 5. The motor may drive the rollers through a flexible shaft and in this case is carried in a pocket hooked on to the belt of the operator. An arm 8 carrying a roller adapted to engage the work is pivoted to the holder. This subject-matter does not appear in the Specification as accepted.
Patent GB-1371793-A (GB)
Title: Safety device for pressurised containers such as metal casks for  beer
IPC: B67D1/12
Filed: 1972-06-13
Abstract: 1371793 Valves ALUMASC Ltd 13 June 1972 [19 July 1971] 33779/71 Heading F2V A relief valve for a metal beer cask consists of a cast aluminium valve body 10 providing a 120 degree conical seat 15b for a plastics valve member 11 having a nitrile rubber seal ring 22 which, in the closed position, has its exposed end flush with surface 15a of the body, surface 15a in turn being flush with the inner surface of the cask. The valve member is biased by a spring 12 centred by a plastics stud 20 retained by a cap 13 which is held against rotation by pin 23.
Patent GB-357836-A (GB)
Title: Improvements in or connected with swivels
IPC: F16G15/08
Filed: 1930-11-11
Abstract: 357,836. Lubricating swivels. SHORT, A. E. and SHORT, H. O., Seaplane Works, Rochester, Kent. Nov. 11, 1930, No. 33911. [Class 12 (ii).] A swivel for use on mooring chains or cables or otherwise subject to immersion, has a central lubricating cavity formed by making the body of the swivel in two parts A, B, screwed together. The lubricant may be introduced prior to assembly or through the aperture E by a grease gun. In the construction shown the bolt and the aperture through which it passes are formed with registering cylindrical and conical surfaces B4, B<5>, D<4>, D<5>, and the joint between the wide circular flange D<6> on the bolt and the body of the swivel is provided with trap grooves B<6>, D<7>.
Patent GB-1000915-A (GB)
Title: Improvements in or relating to hand tools
IPC: B27G17/04
Filed: 1963-08-27
Abstract: 1,000,915. Scrapers &c. H. M. UNGER. July 22, 1964 [Aug. 27, 19631, No. 33945/63. Heading B4B. A scraper or cutting tool comprises a casing 1 having an opening at one end through which a holder 2 carrying a blade 3 is slidable either into a projected position, Fig. 1, or a retracted position, Fig. 2, by means of a resilient strip adapted to project through a slot 6 in the casing and formed at its free end with a fingerpiece 7. The slot has lateral extensions 8, 9 engageable by shoulders on the resilient strip when the holder 2 is in either one of its limiting positions. The holder comprises a pair of resilient jaws between which the blade, which is preferably a single-edged razor blade, is slidable. The casing may be of metal or a plastic.
Patent GB-169646-A (GB)
Title: Improvements in or relating to "braille" or shorthand typewriters
IPC: B41J3/32
Filed: 1920-09-02
Abstract: 169,646. Wayne, A., Wayne, A. H., and Berridge, H. C. Sept. 2, 1920. Type-bar machines for embossing paper; machines for braille type; stenographic machines.- In machines having six sliding embossing-styles operated by keys, and ratchet-mechanism for feeding a paper web, the styles p pass through a top guide c<8> and a bottom guide q, and the bottom ends are arranged in the same horizontal plane and have ball-and-socket engagement with substantially straight key-levers m<1>, returning- springs p<2> being arranged between the guide q and the bottom ends of the styles. The keylevers converge, and the four outer key-levers are formed with short cranked parts m<3>. The keylevers may be pivoted on detachable pillars r and be formed with rounded ends m<2> entering sockets p<1> in the styles. The styles are housed in a recess a<5> in the casing a. The top guide c<8> may be integral with a channelled guide c for the paper web, the die-plate o being secured to the channelled guide. Letter-spacing mechanism.-The key-levers m<1> and a spacing-key lever n<1> operate a universal bar t connected by a link t<2> to a lever l operating ratchet-mechanism for feeding the web. The movement of the universal bar is limited by a pin t<3> on the link t<2> engaging a stop-bar u. Specification 169,614 is referred to.
Patent GB-788526-A (GB)
Title: Improvements in or relating to apparatus for heat treatment of thermo-plastic or thermo-setting yarn
IPC: D02G1/02
Filed: 1954-11-26
Abstract: 788,526. Spinning and finishing yarns and threads. KLINGER MANUFACTURING CO., Ltd., SCRAGG & SONS, Ltd., E., GILCHRIST, R. S., SCRAGG, E. P., and MATTINGLY, D. A. E. Nov. 25, 1955 [Nov. 26, 1954], No. 34425/54. Class 120(3) An apparatus for heat-setting yarn, e.g. in crimping thermoplastic or thermosetting yarn by a false-twisting process in which the yarn is twisted, set, and back-twisted, comprises a heated surface over and in contact with which a running yarn travels, and means for so heating the surface that there is a temperature gradient therealong increasing in the direction of travel; the temperature of the surface may be lowest where the yarn first contacts it. In the operation of the apparatus shown each of four yarns 13 is drawn over a curved metal tongue 10, which may be hollow to receive heating liquid, and through a V groove 12 therein, thence through a falsetwisting head 18. The length of the tongue and the cross-sectional and/or surface area along the length thereof may be varied to produce the temperature gradient. Pulleys 35, 36 may be driven at different speeds to stretch the yarn or take up slack or to allow contraction: the yarn may extend through tensioning means (not shown) on the inlet side alternatively to the pulley 35 being driven at a higher speed than the pulley 36. The yarn may be treated with a setting agent, e.g. distilled water, applied before and/or during passage over the tongue, e.g. the yarn may be wound around a pulley (not shown), dipping into a water tank or may be sprayed with water or each tongue 10 is provided with a passage 16 leading from a water supply pipe 17 and opening into the groove 12 e.g. at a position where the temperature is just below the boiling point of water. Means may be provided for maintaining the moisture or steam around the yarn and for preventing heat losses. thus, as shown, a flap 14 is hinged to. the tongue and may project into the groove 12; and the assembly is heat insulated at 15. The yarn leaving the tongue 10 may be cooled by a, jet or general flow of air. The tongues are integral with or brazed to a heating body 11 which, with thermostatically controlled heating means, comprises the invention of Specification 788,527.
Patent GB-521857-A (GB)
Title: Charge mixing and atomizing device for internal combustion engines
IPC: F02M23/09
Filed: 1938-11-26
Abstract: 521,857. Treating charge. VANDENHEUVEL, L. C. A. Nov. 26, 1938, Nos. 34497 and 34498. Convention'dates, Nov. 26, 1937, and Oct. 7, 1938. [Class 7 (ii)] [Also in Group XXIX] A charge mixing and atomizing device comprises a chamber connecting the carburetter to the engine in which are two sets of beaters 9, 12 formed of parallel rods one set 9 being fixed to the casing and the other mounted on a spider 10 rotated by a shaft 11 which may be driven by a belt from the fan shaft of the engine. Air may be admitted to the casing through a passage the axis of which is a continuation of the axis of the shaft 11, and closed by a valve 35. The valve shaft carries a sleeve 38 which acts as a slide valve to 'close the air ports 34 as the valve 35 opens. The valve 35 is operated by a link 44 connected by a rod 46 to the carburetter control. The forward part of the sleeve 38 is formed as a cone 39 the angle of which is very small to permit a gradual opening of the air passage. Around the main valve are a series of auxiliary air openings 29 closed by ball valves 30 acted on by leaf springs of varying power.
Patent GB-852928-A (GB)
Title: Book-keeping apparatus
IPC: B42D12/00
Filed: 1958-10-28
Abstract: 852,928. Book-keeping devices. HABERFELD, E. O. Oct. 28, 1958 [Oct. 29, 1957], No. 34513/58. Glass 16. In a book-keeping device, the account and carbon sheets are gripped against a baseplate a by the ends of two hingeable clamping bars c, d, the other ends of the bars being sharp and engaged in V-grooves b<SP>1</SP> in a bar b secured to the plate a, these grooves forming hinging and locating means for the clamping bars. The bars c, d are engaged, towards their sheet clamping ends, by leaf springs k, i, respectively, which are secured to the bar b, by the screws g. A rubber or like insert a<SP>1</SP> is arranged in the plate a at the sheet-clamping zone, and the ends of the bars c, d may have rubber tips. The bars c, d are manipulated by handles c<SP>0</SP>, d<SP>0</SP>.
Patent GB-798318-A (GB)
Title: Improvements in or relating to furan compounds and the manufacture thereof
Inventor: CLAUSON NIELS KONRAD FRIEDRICH
Filed: 1954-11-29
Abstract: The invention comprises (1) compounds of the formula <FORM:0798318/IV (b)/1> where R is hydrogen or acyl and R1 is hydrogen, alkyl or cycloalkyl (provided that when R1 is hydrogen R is also hydrogen), and their acid addition salts; (2) the production thereof by reacting a 2-(a -acylamino-ethyl)-furan with an acetylene dicarboxylic ester, hydrogenating the product to give <FORM:0798318/IV (b)/2> (Z=R, Y=R1) and pyrolysing the latter to split off ethylene; if desired the groups R and R1 may be hydrolysed; (3) the production of compounds of the formula <FORM:0798318/IV (b)/3> (A=H or acyl) from compounds of the first formula above in various ways, viz: (a) 2-(a -acylamino - ethyl) - 3 : 4 - bis - (hydroxymethyl)-furan by direct selective reduction (e.g. with lithium aluminium hydride); (b) 2-(a -acylamino - ethyl) - 3 : 4 - bis - (acyloxymethyl) - furan by hydrolysis of R and R1 to H, reesterification and selective reduction in the presence of an acid anhydride or with subsequent acylation.  The acylamino group may be subsequently hydrolysed to amino.  The acyl group is preferably aliphatic of 1-8 carbon atoms but may also be aroyl, aralkanoyl or cycloalkanoyl, suitable groups of these types being mentioned.  The esterifying group is preferably C1-C8 alkyl but may also be cyclopentyl or cyclohexyl.  The 3 : 4-bis-acyloxymethyl compounds can be converted into pyridoxin as in Specification 798,320.  In the examples: (1) 2-(a -acetylamino-ethyl)-furan is converted to 2-(a -acetylamino-ethyl)-3 : 4-dicarbethoxy-furan, with or without isolation of the intermediates diethyl 3 : 6-endoxo-3-(a -acetylamino - ethyl) - 3 : 6 - dihydrophthalate and -3 : 4 : 5 : 6-tetrahydrophthalate; (2) the product of (1) is reduced to 2-(a -acetylaminoethyl) - 3 : 4 - bis - (acetoxymethyl) - furan; (3) the product of (1) is hydrolysed to 2-(a -aminoethyl) - 3 : 4 - dicarboxy - furan (hydrochloride described), the latter esterified with methanol (via hydrochloride of ester) and treated successively with lithium aluminium hydride and acetic anhydride to give 2-(a -acetylaminoethyl) - 3 : 4 - bis - (acetoxymethyl) - furan; (4) the last-named is hydrolysed to 2-(a -aminoethyl) - 3 : 4 - bis - (hydroxymethyl) - furan and oxidised with chlorine to give pyridoxin hydrochloride. Alternative reactants and the corresponding intermediates are mentioned.
Patent GB-1180688-A (GB)
Title: Method and apparatus for the treatment of suspensions
Inventor: PECHON GUY LE
IPC: B01D33/11
Filed: 1968-07-19
Abstract: 1,180,688. Rotary drum filters; ultrafilters. RHONE-POULENC S.A. 19 July, 1968 [3 July, 1968], No. 34696/68. Heading B1D. A rotary vertical filtering drum 2, having a pipe 6<SP>1</SP> extending inside it and terminating near its bottom, is cleaned by a liquid jet 13 which impinges on its outer surface 4 at an angle of 20‹ to 80‹ to its radius. As described, a suspension of alumina is introduced via pipes 9, 10 and it filters through cloth 4, which may be woven or non-woven, cotton, sintered metal, &c., supported by a perforated sheet 3 and secured by a helical wire (not shown). Alternatively, ultra-filtration may be provided for, through a cellulose membrane. Filtrate is led off to a vacuum source 15. In Fig. 1 an imperforate wall 7 defines an annular space 6, closed at 8; but the drum need not be double walled. The nozzles 13 are pivotably adjustable. The washing liquid may be the untreated liquid, the filtrate, or auxiliary water, see Fig. 3 (not shown).
Patent GB-864480-A (GB)
Title: Casing for a clock, more particularly an electric clock
IPC: G04C10/00
Filed: 1957-11-07
Abstract: 864,480. Clocks. MARTI, F., and BRAUNSCHWEIG, G. Nov. 7, 1957 [Nov. 12, 1956], No. 4726/57. Class 139 A clock case comprises two shell portions 2, 3, Fig. 1, held together by interengaging spring members 4 and 5, 6 and 7. A base-plate 9, Fig. 2, is secured to a rib 11 of the portion 3 and supports a metal disc 13 on which rests a glass or polystyrene tray 14 in which the battery 1 is located. A spindle 15 extends through the baseplate 9 has thereon an internal cam 16 and an external actuating key 19. A push rod 18 is loaded by a spring 17 to engage the cam 16. Rotation of the cam 16 by the key 19 effects outward movement of the rod 18 to separate the two parts 2, 3.
Patent GB-1224460-A (GB)
Title: Apparatus for dimensionally testing annular lip seals
IPC: G01M13/00
Filed: 1969-07-10
Abstract: 1,224,460. Measuring shaft seals. GENERAL MOTORS CORP. July 10, 1969 [Oct.21, 1968], No. 34732/69. Heading G1M. Apparatus for measuring a critical distance "R", Fig. 6 of a shaft oil seal comprises an appropriately selected transparent sleeve 100, Fig. 1 simulating the shaft surrounded by the seal 10. The sleeve which is internally reinforced by 102, Fig.4, is supported on a base 54 and locked by a screw 90 between the angled plates 64, 66 of a vee block 60, Fig. 7, and the seal is held down on a plate 70 by clamps 72. By means of manually operable vertical and horizontal machine slides a counterweighted probe 164 may engage its grooved end with a garter spring 26 around the seal and a second reference device 162 mounting an optical scope 202 may be lowered into the seal by similar slide arrangements. The scope 202 is tubular and has a hairline 220, Fig.4 which must be positioned in a transverse plane 32, Fig. 6 through the seal lip 22 by sighting down an eyepiece 214, Fig. 1 and through a prism 216. A differential dial gauge (230) Figs. 2 and 8 (not shown) which is first been zeroed up with both the probe 164 and the scope 202 in a raised and aligned position, Fig. 5 (not shown) in now re-read with the hairline displaced above the groove of the probe 164 and the plane through the garter spring. This reading of the dial gauge then gives the "R" value to be determined.
Patent GB-780040-A (GB)
Title: Improvements in or relating to ion traps in cathode-ray tubes
IPC: H01J29/84
Filed: 1954-12-01
Abstract: 780,040. Ion trapping in cathode ray tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec. 1, 1954 [Dec. 3, 1953], No. 34811/54. Class 39(1). A cathode ray tube has a gun designed as an ion trap and comprising a cathode 5, Fig. 2, control electrode 6, accelerating anode 7 and final anode 8, the axis of that part of final anode 8 adjacent to the cathode is not coaxial with the common axis of the electrodes preceding the anode, but intersects this axis approximately at the point where the electrons and ions are separated by a transverse magnetic field, and the final anode 8 and accelerating anode 7 have parallel end surfaces. The accelerating anode 7 can be replaced by an electrode having a different function, or a further electrode may be disposed between the accelerating anode 7 and control electrode 6 to give a pentode gun. The axis of final anode preferably coincides with the tube axis but may slant slightly with respect thereto to ensure that the beam finally emerges from 8 on the tube axis. Alternatively a second magnetic deflecting field may deflect the electrons accurately on to the axis of anode 8. Anode 8 can have a non-circular section or be slightly conical. To reduce distortion of the lens field between 7 and 8, anode 8 can have a diaphragm at the end nearer to the cathode. If the diaphragm aperture is not on the common axis of the electrodes 5, 6, 7, but is nearer the left hand side of the anode, then the beam can be deflected back on to the axis of the anode by the magnetic deflection of the ion trap. Since the distance d between the first crossover and the focusing plane of the main focusing lens is less than the corresponding distance for known ion traps with bent final anodes, Fig. 3 (not shown), the deflection defocusing is reduced. Further as anode 8 is shorter there is more space for the getter at its remote end. The main focusing lens may be magnetic or electrostatic. The tube may be used in television, oscillography or radar.
Patent GB-634443-A (GB)
Title: Improvements in and relating to seals for electric discharge devices
IPC: H01J9/32
Filed: 1946-11-25
Abstract: 634,443. Quartz-metal seals. GENERAL ELECTRIC CO., Ltd., and PEARCE, A. G. Nov. 25, 1946, No. 34861. [Class 36] Two or more mutually insulated conductors 12, 13 are sealed through an envelope by passing all but one of them through different vitreous tubes 14 and then passing each of these tubes and the remaining conductor through an outer vitreous tube 15 and then collapsing all the tubes to form a vacuum-tight seal. The tube 15 is sealed at 'one end 15a and evacuated so that when heated the vitreous tubes collapse on to the wires to form a vacuum-tight seal. The end 15a is then removed to expose the ends of the conductors. If desired all the conductors may be initially inserted in vitreous tubes. Specification 628,254 is referred to.
Patent GB-951366-A (GB)
Title: Dynamoelectric machine
IPC: H02K11/04
Filed: 1962-09-12
Abstract: 951,366. Dynamo-electric machines. GENERAL MOTORS CORPORATION. Sept. 12, 1962 [Sept. 21, 1961], No. 34888/62. Heading H2A. A dynamo-electric machine, e.g. alternator, comprises a semi-conductor diode rectifier network 54, 74 &c., a pair of brushes 100, 102, and a pair of terminals 130, 132 insulated from a frame assembly 10, 12 and respectively connected to a junction of the network and one of the brushes. Terminal studs 68, 70 convey the D.C. output from the Y-connected stator winding 18, and the field is provided by a winding 46 energized via slip rings 48, 50 and the brushes. The field has interdigitated poles 38a, 40a. Specifications 840,306 and 951,365 are referred to.
Patent GB-503984-A (GB)
Title: Improvements in electric circuits adapted to operate electric discharge devices
IPC: H05B41/232
Filed: 1937-12-17
Abstract: 503,984. Supply systems for discharge lamps. GENERAL ELECTRIC CO., Ltd. (Patent-Treuhand-Ges. f³r Elektrische Gluh- 1ampen) Dec. 17, 1937, No. 34996. [Class 38 (iv)] In an operating circuit for an elec trio discharge device, wherein t voltage higher than the supply voltage is generated by tht co-operation of an inductor and a condenser in series, the series connected condenser and inductor are shunted by a resistor of resistance so high that the R.M.S. current through it does not exceed onefifth of that passing through the discharge device, but so low that the time-constant of condenser and resistance does not exceed two minutes. In the event of the main switch being opened and the discharge current stopping at the point in the cycle at which the condenser is fully charged the danger consequent to the operator who next closes the switch is thereby obviated by the condenser discharging through the resistor. In an example a resistor 4 is shunted across an inductor 2 and condenser 3 which are in series with a discharge device 1. With a supply at main voltage the resistor 4 is about 100,000 ohms. Alternatively, as indi. cated by dotted lines, a resistor 5 may be connected across the discharge device 1 and a second resistor 6 across the main switch controlling the circuit. In a further modification the condenser is in parallel with the discharge device and the resistor is shunted across inductor and condenser. Specification 488,142 is referred to.
Patent GB-1261987-A (GB)
Title: A recording material comprising sensitised layers of polymers which can be cross-linked by the action of light
Inventor: OEHLSCHLAEGER HANS
IPC: C07D285/12
Filed: 1969-07-11
Abstract: 1,261,987. Cyanothioacetic acid pyrrolidide. AGFA-GEVAERT A.G. 11 July, 1969 [15 July, 1968], No. 35016/69. Heading C2C. [Also in Divisions C4 and G2] Cyanothioacetic acid pyrrolidide is prepared by heating cyanoacetic acid pyrrolidide with phosphorus pentasulphide in xylene.
Patent GB-388519-A (GB)
Title: Improvements in or relating to arc-rupturing devices for electric circuit breakers
IPC: H01H9/36
Filed: 1931-12-18
Abstract: 388,519. Arc-rupturing in switches. WESTINGHOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.-(Assignees of Dickinson, R. C.; Northwood Apartments, North Street, Wilkinsburg, Pennsylvania, U.S.A.) Dec. 18, 1931, No. 35110. Convention date, Jan. 24. [Class 38 (v).] In a deionizing arc-extinguishng structure such as is described in Specification 288,326, [Class 38 (v), Electric switches &c.], the deionizing plates 61, Fig. 2, are spaced by sheets of insulation 63, 65, surrounding the annular path 75, around which the arc is rotated, except for through passages 87; 79, extending from the top to the bottom of the structure. The arc formed at the sparking contacts 21, 23, Fig. 1, is transferred to a fixed arcing horn 27 and a movable arcing horn 25, and then from the horn 25 to a fixed arcing horn 29. A coil 35 moves the arc upwards until it is constricted in the ends of V-shaped grooves 69, Fig. 2, in the deionizing places, and broken into a number of short arcs between the plates. The arcs are then whirled round in the annular space 75 formed by the insulating sheets and an insulating ring 131, the sections of the arc in adjacent deionizing chambers rotating in opposite directions. The arc horns 27, 29, Fig. 1, are formed of spaced plates to give a free path for the gases through to the passages 87, 75, 79, 81, Fig. 2. The projection 77 on the insulating plate 65 is so placed that the flow of gas throughthe space 79 is in opposition to the rotating arc. A static shield 149 outside the. deionizing structure equalizes the differences of potential between the plates 61. Fibre plates 137 run parallel to the arcing horns and have inserts of asbestos 139. The laminations of the blow-in magnet 35 are of different lengths along the deionizing structure.