baber/WOPTO huggingface dataset:
Patent GB-1307034-A (GB)
Title: Discharge lamp electrodes
IPC: H01J61/073
Filed: 1971-04-29
Abstract: 1307034 Discharge apparatus COMPAGNIE DES LAMPES AS 29 April 1971 [22 May 1970 7 April 1971] 12266/71 Heading H1D An electrode for a discharge lamp, comprises a tungsten rod 1 having secured at one end a coil 2 of tungsten wire, and a thorium-emitting disc 7 above the said end of the rod. A second disc 8 can contain a getter material such as titanium or any metal in the same group. The discs 7, 8 are held closely together by further coils 4, 5, 6 and welds 9, 10. A typical disc 7 is made by mixing 45 mg of tungsten, 5mg. thorium oxide and 0À5 mg. of silicon, the mixture being compressed at about 15 to 20tons/sq.cm., and subsequently heated in argon at about 1500 C. A titanium-containing disc is similarly made with 10-50% titanium mixed with tungsten.
Patent GB-1205844-A (GB)
Title: Improvements in photochemically useful arc lamps
Inventor: JOHNSON PETER DEXTER
IPC: H01J61/12
Filed: 1968-03-13
Abstract: 1,205,844. Metal-vapour lamps. GENERAL ELECTRIC CO. 13 March, 1968 [17 March, 1967], No. 12280/68. Heading H1D. A vapour arc photochemically useful light source comprises a U.V. transmissive envelope 3 containing a quantity 19 of mercury and a halide of Bi other than the fluoride, and a starting gas, the quantity of mercury being sufficient to cause collision line-broadening of the Bi emission, but insufficient to cause depletion of Bi halide. The mercury is totally volatilized in operation and produces a vapour pressure of ¢ to 5 atmospheres. The partial pressure of Bi halide vapour is 10 to 200 tons at a minimum wall temperature of 250 to 450 C. The starting gas may be neon, argon or other inert gas at a pressure of 15 to 25 tons. The envelope 3 is supported by a wire frame in an outer envelope 1. Both envelopes may be of quartz or yttria.
Patent GB-1011171-A (GB)
Title: Semiconductor arrangement
IPC: H01L23/32
Filed: 1963-03-28
Abstract: 1,011,171. Semi-conductor devices. BROWN, BOVERI & CO. Ltd. March 28, 1963 [March 30, 1962]. No. 12320/63. Heading H1K. In a semi-conductor device in which the semiconductor element is sandwiched between and soldered to two carrier plates having the same coefficient of thermal expansion as that of the semi-conductor element, the plates are forced into thermal and electrical contact with metallic members forming heat conduction and electrical connection elements (and which may have any coefficient of thermal expansion) by at least one screwed connection. Fig. 1 shows one embodiment in which the (molybdenum or tungsten) carrier plates 2, 3 which are soldered to opposite faces of the semi-conductor element 1 are formed with threaded pins 4, 5 of the same material as the plates and screwed into the base contact member 6 and the top contact element 7, the pins, if desired, being pre-tinned and soldered to the base and top contacts after assembly to prevent loosening. The remainder of the assembly comprises a spacing element consisting of a ceramic ring 11 soldered to member 6 and to a cover-plate 8 through an opening in which the connecting wire 10 is soldered via a ring 9. In this embodiment and in the embodiments to be described below, discs 12, 13 consisting e.g. of gold foil, may be positioned between the carrier plates and the base and top contact members to ensure uniform distribution of pressure. Instead of forming the threaded pins 4, 5 integrally with the carrier plates they may be formed separately and be of a different material, e.g. nickel or silver, as described in connection with Figs. 2a and 2b (not shown). In a modification, the lower carrier plate 2 (Fig. 3) which is not provided with a threaded pin is pressed against base member 6 by means of a pressure ring 14 constrained by at least three screws 15. In a further arrangement (Fig. 4) neither carrier plate is formed with threaded pins and the required pressure is effected by means of a resilient cover-plate 16 clamped to the base 6 by means of at least three screws 17 provided with insulating bushes 19 retained between pressure distribution rings 20, 21 to avoid subjecting the ceramic spacing ring 18 to tensile stress. Fig. 5 shows an arrangement in which the sandwich of semi-conductor element 1 and the carrier plates 2, 3 is formed with a central aperture through which a screw 31, the head of which is seated on a shoulder formed in a central aperture in contact element 25 engages the base member 6. The screw, which is electrically insulated by a ceramic sleeve 30, is inserted through central apertures in the terminal element 23 and the flexible conducting element 24 (both of copper) and after assembly, including the fitting of theglass-metal portions 27, 28, 29, a thorough degassing process is effected and the device is sealed by " pinching-off " an exhaust tube 26. The invention is applicable to semi-conductor surface-contact rectifiers, controllable semiconductor rectifiers and power transistors.
Patent GB-772099-A (GB)
Title: Foundation garments
IPC: A41C1/00
Filed: 1955-04-29
Abstract: 772,099. Corsets. EVEN-PUL FOUNDATIONS, INC. April 29, 1955 [Oct. 13, 1954], No. 12411/55. Class 141. A front section 12 of a girdle 10 is formed of outer and inner panels of which the outer panel comprises a main inelastic portion 16a and elastic inserts 22 and the inner panel is wholly elastic, but of less height than the outer panel. The panels are secured together along their side edges 20 while the lower portion of the inner panel is in a stretched condition. The lower edge 24 of the inner panel is left free from the outer panel.
Patent GB-1210146-A (GB)
Title: A friction clutch
IPC: F16D13/71
Filed: 1968-03-14
Abstract: 1,210,146. Friction clutches. LUK LAMELLEN-UND KUPPLUNGSBAU G.m.b.H. 14 March, 1968, No. 12434/68. Heading F2C. In a friction clutch engaged by a diaphragm spring 9 fulcrummed at 12 on a driving casing 8 which is connected to a presser plate 11 by tangentially arranged bowed flexible strips 4 that bias the presser plate to a disengaged position, the strips 4 are longitudinally precompressed to provide a constant axial spring bias on the presser plate 11 throughout its operating range. The mid point of each strip 4 is riveted at 15 to the presser plate 11 whilst the ends of each strip are riveted at 14 to the casing 8. As shown three strips are provided and the adjacent ends of each pair are secured to the casing by a common rivet 14.
Patent GB-958116-A (GB)
Title: Improvements in or relating to transmission couplings
Inventor: SMITH HENRY THOMAS
IPC: F16D3/68
Filed: 1960-04-09
Abstract: 958,116. Shaft couplings. B.R.D. CO. Ltd. April 25, 1961 [April 9, 1960], No. 12702/60. Heading F2U. A resilient coupling allowing relative axial movement between its driving and driven parts comprises a stub shaft 11 coupled to a sleeve 16 by sets of rollers 17 mounted in registering grooves in the stub shaft and sleeve so as to form a "frictionless " splined joint, as described in Specification 958,115, and an outer housing 20 coupled to the sleeve 16 by rubber or like members 19 compressed between ribs 18, 24 formed on the sleeve and housing. The housing 20 is formed in two parts 21, 22 secured together by bolts 23 and having wedge-shaped ribs 24 serving to pre-stress the rubber members 19 as the housing parts are drawn together. The bolts 23 also secure the housing to a driven yoke 28. Lateral movement of the sleeve 16 relative to the housing is prevented by bearing portions 29 of the sleeve having nylon bushes 31 engaging end flanges 30 of the housing.
Patent GB-1268802-A (GB)
Title: Process for counteracting the brightening effect due to an optical brightener
Inventor: MATTER MAX
IPC: D06L3/12
Filed: 1969-03-11
Abstract: 1,268,802. Coating. SANDOZ Ltd. 11 March, 1969 [15 March, 1968; 30 Aug., 1968], No. 12785/69. Heading B2E. [Also in Divisions C2, C3, Dl and D2] The brightening effect produced by optical brightners on organic substrates is nullified by incorporating an acid addition salt or quaternization product of a cyclic amidine of formula: where Y is an alkylene chain of 2, 3 or 4 carbon atoms, R 1  is hydrogen, alkyl, aryl or aralkyl with up to 7 carbon atoms and X is hydrogen or or of a polycondensation product containing units of formula I above in which R 1  is an alkylene chain with up to 8 carbon atoms, and X is -CO-NH- or It is possible to incorporate an extinguishing agent, particularly: in a coating mass, particularly of starch.
Patent GB-760522-A (GB)
Title: Bottle stoppering mechanisms
Inventor: DAVIES ROWLAND
IPC: B67B1/04
Filed: 1954-05-04
Abstract: 760,522. Stoppering. AUTOPACK, Ltd. May 2, 1955 [May 4, 1954], No. 12903/54. Class 125(2). Apparatus for inserting headed stoppers 9 or tapered stoppers into bottles 12 comprises a table 4 provided with a transfer passage 8 through which the stopper is forced by a plunger 11 into the underlying bottle. As shown in Figs. 1 and 2, the stoppers are supplied to notches 6 formed in a rotating disc 5 which carries them upside down, with their-heads in contact with the table 4, to the passage 8. The stopper falls into the passage, being inverted as it falls. The passage has a flared mouth. Spring-loaded arms 18 on the disc 5 have projections 19 which bear on the stoppers being fed and are pressed rearwardly away from the stopper as the latter reaches the transfer passage. The bottle is justified below the passage between a notched block 16 and a resilient detent 17. In a modified form, a plurality of passages 8 and plungers 11 are associated with a rotating table and the feed disc 5 is disposed to one side of the table but overlies it in part.
Patent GB-1314157-A (GB)
Title: Saturable-core square wave oscillator circuit
IPC: F02P3/01
Filed: 1971-05-04
Abstract: 1314157 Transistor oscillators TEXACO DEVELOPMENT CORP 4 May 1971 [18 May 1970] 12943/71 Heading H3T [Also in Division F1] A transistor oscillator 10, suitable for supplying a high intial voltage to a load, e.g. a spark plug comprises a feed-back winding 31 on a saturable core transformer 11 connected in a feed-back circuit with the primary 25 of an output transformer 26 having a high secondary to primary turns ratio and turned to a whole multiple of the natural oscillating frequency, the transformer 11 being so arranged as to be unsaturated due to reduced feed-back at or above a predetermined load current whereby the oscillator frequency increases and is no longer related harmonically to the tuned frequency of transformer 26 so as to reduce the output voltage. The oscillator formed by transistors 16, 17 has it natural oscillating frequency determined by the saturation point of transformer 11 while transformer 26 is tuned to twice this frequency by the leakage inductance and interwinding capacitance. At increased oscillator frequency, the output voltage is determined by the turns ratio of transformer 26 and the increased impedance of the leakage inductance. A saturation control winding 32 with an associated breaker points switch 35 determines the timing of the output spark energy. Zener diodes 56, 57 are provided for protection from transient voltages.
Patent GB-568424-A (GB)
Title: Improvements in or relating to the automatic variation of a condition such as temperature
IPC: G05D23/19
Filed: 1943-08-11
Abstract: 568,424. Automatic control systems. ELECTROFLO METERS CO., Ltd., and GOFF, W. R. Aug. 11, 1943, No. 12972. [Class 38 (iv)] Temperature &c.-In a, system in which a cam is driven by a constant-speed motor or clock to control changes in a, process with time, for example, a system for the automatic control of a variable condition or factor such as temperature, in order to achieve a variety of types of control with the same cam, it is driven intermittently and means is provided for controlling the duration of the driving and rest periods. The shaft 1 driven by constant speed driving means is geared to an output shaft 2 through a releasable clutch comprising a driving member 3, a pawl 4 and sleeve member 8. A clutch lever 6 co-operates with the pawl 4 to disconnect this drive and with a second pawl 5 and sleeve member 9 which are then driven by the member 3, until the lever 6 is moved to engage the pawl 3. The periods during which the sleeves 8 and 9 are driven is determined respectively by selector switches. 32, 34 which have contacts respectively connected to brushes 20, 30 which are engageable after different periods by angularly displaced conducting elements 18, 28 on shafts 17 and 25, 26 geared respectively to the members 8 and 9. The switches 32, 34 are respectively in series with electromagnets 42, 52 which actuate the lever 6 and with switches 39, 49 closed once each revolution of the members 8, 9.
Patent GB-180192-A (GB)
Title: Improvements relating to firegrates for domestic purposes
IPC: F24B1/18
Filed: 1921-05-06
Abstract: 180,192. Trezise, W. E. May 6, 1921. Open fire-places.- Behind the combustion space is a hopper f, opening at its lower end into the fire and closed at its upper end by a removable cover g, except for a gas passage h communicating with the ashpit c. The back d of the combustion space is of fire-brick. In use, the burning fuel heats the fuel in the hopper, and the gases produced therein pass down the passage h into the ash-pit, where they mix with air supplied through the shutter i, and are burnt on passing through the fire.
Patent GB-212166-A (GB)
Title: Improvements in blotters
IPC: B43L17/04
Filed: 1923-05-15
Abstract: 212,166. Stern, H. May 15, 1923. Blotting-appliances.-In blotting-pads of the kind in which spring clamps are provided' for securing the blotting-paper, the clamps y, Fig. 1, of sheet-metal are mounted to rock in open troughs 8 in a sheet-metal body portion x, a leaf spring z passing through slots 14 in the clamping- members and retaining them in position. Each clamp is formed with bent-over ends 10, 11 and a clamping-ridge 12 which may be indented. The overlapping ends of the body are secured' to the handle 3 by a screw 2 and the body is stiffened by the troughs 8, 9. The arc of the clamping- members is of smaller radius than that of the body portion 5. In another construction, Fig. 3, sheet-metal operating-levers 25 are provided for the clamps y, which pass through openings 26 in the troughs 8. One end 25<1> of each operating lever is attached to its clamp and the other end 25" projects into the body of the device. The clamps are limited in their upward movement by the contacting-surfaces 4, 30, inwardly directed ridges 31 on the operating-levers lifting the leaf-springs. The rear end of each clomp passes through the opening 26 which provides a pivot bearing. The base 7 of the body portion is provided with longitudinal flutings and with an aperture 38 for facilitating access to the screw 2 when it is desired to adjust the spring z.
Patent GB-685294-A (GB)
Title: Improved process for the chlorination of benzene and benzene derivatives
IPC: C07C17/02
Filed: 1949-05-16
Abstract: 1 : 2 : 3 : 4 : 5 : 6 - Hexachlorocyclohexane is prepared by the chlorination of benzene without the need for illumination in which benzene and chlorine are contacted in a vessel in the presence of water and a hypochlorite and in which at least 50 per cent of the water is introduced in the form of ice.  If desired the hypochlorite may be present initially or it may be formed in situ by the action of a small portion of the chlorine on a material selected from the group consisting of mercuric oxide, calcium carbonate, chalk, marl, sodium carbonate, and benzoyl peroxides.  It is preferred to carry out the reaction at a low temperature to produce a pure product. Specifications 447,058 and 649,428 are referred to.
Patent GB-131372-A (GB)
IPC: C21C5/52
Abstract: 131,372. Sarron, P. F., and Simon, J. May 27, 1918. Electrode furnaces.-A converter has one or more plugged lateral holes c, Fig. 4, through which, after the converter has been placed horizontally, are introduced electrodes h, protected during transfer by metal sleeves g, also serving to bush the holes c. Hearth electrodes may also be provided. Heating may be effected wholly by an arc, which may be magnetically deflected, or partly by the resistance of the charge. The sleeves may be water or air cooled and, when the lining is basic, may be separated from the electrodes by insulating sheaths. The electrodes are suspended from posts or, preferably, from a regulator within a cabin on a travelling bridge, so that they can be transferred to another furnace or to heat-retainers consisting of iron cylinders lined with refractory material. The protecting sleeves are provided with rods q sliding through current-conducting clamps o and fitted with stopnuts r. The electrodes may be further protected by sheet-iron or by a mixture of asbestos and water-glass, held by gratings. When the electrode holes are plugged, and the mouth of the converter closed by a door d, a vacuum may be produced by way of the air chamber, to remove dissolved gas. A tap-hole s is arranged near the mouth. Additional heating may be effected by introducing heavy oil or gas through the tuyeres. In the manufacture of steel, two electro-converters of the kind described may be employed, with acid and basic linings respectively. Scrap iron, dross, &c. is melted in the acid converter, with the addition of carbon and silicon, if necessary. After blowing, the metal is transferred to the basic furnace, blown with lime, washed, vacuum-treated, electrically heated with material for a basic slag, and finally washed again. Metal from a blast furnace may be similarly treated. If the material contains very much or very little phosphorus, either the basic or the acid converter is alone employed.
Patent GB-128791-A (GB)
Title: Improvements in Apparatus for the Manufacture of Charcoal and Gas.
Inventor: BECCARI GIUSEPPE
IPC: C10B53/02
Filed: 1918-08-13
Abstract: 128,791. Beccari, G. Aug. 13, 1918. Stoves combined with retorts. - A stove having means for the production of charcoal for domestic use is fitted with a horizontal retort c with openings in the bottom for the emission of the gas produced which is burnt in the stove. The retort is provided with a double door k, k' with interposed sand. In the heating stove shown in Fig. 1, air for combustion is admitted by the pipe x, and a door f gives access to the retort and provides for the supply of fuel for starting. In the case of a cooking-stove, Fig. 2, a number of retorts, each with separate charging doors z, are arranged in vertical series, and there are two doors f, the lower being fitted with an air valve x.
Patent GB-1067401-A (GB)
Title: Improvements relating to type character selection devices for high speed printers
Inventor: ALBRECHT FRIEDRICH W
IPC: G06K15/06
Filed: 1965-03-29
Abstract: 1,067,401. Electric selective signalling. INTERNATIONAL BUSINESS MACHINES CORPORATION. March 29, 1965 [April 3, 1964], No. 13165/65. Heading G4H. In a printer of the type with a moving typecarrier wherein printing is effected on equality being detected in a comparator between signals representing the character to be printed and the character currently in position, the latter signals being obtained from a rotating store, the stored representations are re-stored at different storage locations so that at the end of one revolution of the store, each character representation has been re-stored in the adjaccent storage location. After each revolution, the type-carrier is moved along one character position, the re-storing being to take account of this change. The store is a magnetic drum with three tracks read concurrently. One track holds the line of characters to be printed, the second track holds representations of the type elements in the same order as they appear on the type-carrier, and the third track holds representations of the hammer positions which are used to select the appropriate hammer on equality being detected in the comparator. The hammers are thus catered for in turn during each revolution of the store. Since the store described has less character locations per track than the total number of type elements (which comprises each character several times), the representations to be re-stored are read from one of two heads as determined by clock pulses derived from the store. A separate reading head is provided on this track to provide the comparator input.
Patent GB-553374-A (GB)
Title: Improvements in and relating to the construction of bridges and other metal frame structures
IPC: E01D15/133
Filed: 1941-10-14
Abstract: 553,374. Building frameworks ; bridges. BAILEY, D. C. Oct. 14, 1941, No. 13219. [Class 20 (i) and 20 (ii)] A bridge or like framed structure is formed of prefabricated unit frameworks, which may be assembled end to end, side by side, or in superposed relationship according to the strength required, each unit being formed as a rectangular braced member comprising upper and lower chords united by members forming a web. The framed units comprise chord members a, b, each formed of opposed spaced channel bars, the chords being connected by lattice members c of I or H section for web members, the units being provided with male and female end units d, e so that they may be united, end to end. The chords are also provided with apertures g to receive the connecting bolts f when the units are superposed, and also with dowels i which are adapted to engage spaced apertures in cross girders for supporting a road, the cross girders being clamped by quick-action clamps m. When a single line of units is used as a side member to a bridge, they may be supported by raking struts n but if a double line is used they may be interconnected by further unit members o which form spacers. Cruciform fittings may be provided for joining members in different planes. Alternatively the units may be joined together by independent members which hinge together to form a hinged joint. For a bridge the deck l is supported by longitudinal joist p supported by transverse bearers k carried at their ends by the side members of the bridge.
Patent GB-132958-A (GB)
IPC: B30B9/30
Abstract: 132,958. Hydraulic Engineering Co., and Smethurst, W. Dec. 19, 1918. Baling-presses.-An hydraulic baling-press is furnished with three revolving bale-chambers A', A<2>, A<3> arranged at intervals of 120 degrees around a vertical axis B, three subjacent, stationary filling-boxes C', C<2>, C<3> arranged at intervals of 60 degrees, and a finishing-ram F which may be diametrically opposite the box C<2>. The arrangement enables the three operations of filling and partly compressing the material in one chamber, preliminarily lashing the material in the second chamber, and finally compressing and lashing the material in the third chamber, to be performed simultaneously. In baling jute, the box @@ only is employed and the chambers are revolved anticlockwise in stages of 120 degrees. In baling cotton, jute cuttings, &c., the chambers are revolved clockwise in stages of 60 degrees and a charge is taken from each box. The finishing-ram F may be associated with auxiliary rams F', F<2> for taking up quickly the space between the follower and the material. Three rams G<1>, G<2>, G<3> may be provided for the box C' and a single ram G<4>, G<5> for each of the boxes C<2>, C' respectively.
Patent GB-133160-A (GB)
IPC: A43D1/02
Abstract: 133,160. Dugdale, J. Oct. 4, 1918. Artistic modelling.-A pattern box for taking plaster casts of the foot for the production of lasts comprises a base or tray c and sides a, b hinged together. In use, plaster is first placed in the tray c and an impression of the foot obtained with the empty sides a, b closed upon the foot and ankle. This cast is finished off, allowed to dry and coated with shellac &c varnish, after which the foot is again placed in position and a plaster cast obtained in the side a, the side b being filled with pipe clay &c. After finishing off the cast in the side a, the pipe-clay is removed from the side b and a plaster cast obtained in this side. Wires e covered with paper are inserted through the ends of the box and become embedded in the casts.