baber/WOPTO huggingface dataset:
Patent GB-1080203-A (GB)
Title: Improvements in or relating to switching circuits employing static switching devices
Inventor: HOLMES LESLIE KENNETH
IPC: G08G1/097
Filed: 1965-05-21
Abstract: 1,080,203. Road-traffic signals. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. May 17, 1966 [May 21, 1965], No. 21540/65. Heading G4Q. [Also in Division H2] In a switching circuit, e.g. for road traffic signalling systems, having two static switching devices TH1, TH2 connected to control the non-concurrent energization of two loads GLNS and GLEW, the devices TH1, TH2 are connected in series with a fuse F and a unilateral conducting device D1 so that should both devices TH1, TH2 be conducting at the same time due to a fault condition, current flowing in the series circuit will blow the fuse. Normally the device TH1 is rendered conducting by a driver unit DU1 to energize the load GLNS and the device TH2 is rendered conducting by a driver unit DU2 to energize the load GLEW. The devices TH1, TH2 may be thyristors, in which case the supply is the unsmoothed output of a full-wave rectifier fed from A.C. mains. A resistor R1 causes a standing current to flow so that no excessive current surges result when a thyristor is switched on, and a resistor R2 limits the current when both thyristors are conducting at the same time due to a faulty thyristor or due to faulty control of the thyristors.
Patent GB-1353448-A (GB)
Title: Process for preparing lactams
IPC: C07D201/16
Filed: 1972-05-09
Abstract: 1353448 Lactam preparation STAMICARBON NV 9 May 1972 [10 May 1971] 21549/72 Heading C2C [Also in Division C5] Lactams are obtained by the Beckmann rearrangement of a cyclic ketoxime in the presence of H 2 SO 4  or oleum, neutralization of the resulting mixture with NH 3  or an ammonium base, separation of the resulting product into a lactam layer and an aqueous layer, extraction of the lactam from the former with a solvent and recovery of the lactam from the resulting solution, crystallization of (NH 4 ) 2 SO 4  from the aqueous layer, evaporation of the residue from the lactam extraction until it is substantially saturated with (NH 4 ) 2 SO 4 , addition of the thussaturated solution to the mother liquor from the ammonium sulphate crystallization, adjustment of the lactam concentration of the resulting mixture to >0À8% by weight (e.g. 1-2% by weight) and separation of the thus-adjusted mixture into an oily layer and a residual aqueous layer. The former oily layer may be used as a fuel oil and the latter aqueous layer, comprising an ammonium sulphate solution only slightly contaminated with organic substances, may be recycled to the (NH 4 ) 2 SO 4  crystallization stage or to the neutralization stage. Lactam may also be recovered from the oily layer by extraction. Starting cyclic ketoximes having 5 to 12 C atoms in the ring are specified and the example describes the production of caprolactam from cyclohexanone oxime.
Patent GB-580911-A (GB)
Title: Improvements in or relating to the manufacture of polystyrene
IPC: C08G63/48
Filed: 1944-11-03
Abstract: Polystyrene of relatively low molecular weight is prepared by polymerizing monostyrene by heating in a solvent or mixture of solvents comprising one or more monocyclic or dicyclic alpha terpenes.  Specified terpenes are dipentene (limonene), alpha pinene, alpha terpinene and alpha terpinolene.  Solvents with which the terpenes may be admixed include aliphatic and aromatic hydrocarbons, e.g. mineral spirits and xylene.  The product may be used in the manufacture of film-forming compositions such as varnishes, lacquers and paints.  Specification 573,809 is referred to.
Patent GB-1420993-A (GB)
Title: Basic azo dyestuffs and process for their preparation
IPC: C09B44/10
Filed: 1973-05-07
Abstract: 1420993 Basic azo dyes HOECHST AG 7 May 1973 [5 May 1972] 21587/73 Heading C4P New basic azo dyes, free from SO 3 H groups, of formula wherein A is an aromatic carbo- or hetero-cyclic diazo component radical, R 1  and R 2  which may be the same or different are primary, secondary or tertiary amino groups or hydrazino groups, R 3  is a CN, alkoxycarbonyl, carbamoyl which may be substituted, alkyl- or aryl-sulphonyl group, R 4  is alkyl or aryl radical which may be substituted, m is 1 or 2, X is an anion and at least one of the radicals A, R 1 , R 2  and R 4  contains a quaternary N atom are prepared by azo coupling, condensation or quaternation reactions. The preparation of basic mono- and dis-azo dyes is described in examples. They are used to colour tannined cellulose fibres, silk, hair, leather, coco-fibres, jute, sisal, cellulose acetate, polyamide, acidmodified polyamide, polyolefin or polyester fibres, and in particular polyacrylonitrile and polyvinylidene cyanide fibres, in yellow, orange and red shades.
Patent GB-833805-A (GB)
Title: Organotitanium compounds
IPC: C08F4/64
Filed: 1957-07-08
Abstract: The invention comprises organo-titanium compounds containing 1 or 2 Ti-R bonds, the titanium being di- or tri-valent and R being an alkyl or aryl group.  Preferred compounds have the formula RnTiXm, where R is alkyl or aryl, X is alkoxy or halogen, n is 1 or 2, m is 1 or 2, the titanium being di- or trivalent, and (n+m) being equal to the valency of the titanium. The compounds may be prepared by reacting a di- or tri-valent titanium halide with a metal aryl or alkyl or a Grignard reagent, or a tetravalent titanium compound containing 2 or 3 Ti-C bonds prepared by reacting an alkoxy titanium halide of formula alkoxy n-Ti-hal(4-n), where n is 0 to 4, with a metal alkyl, aryl or a Grignard reagent is allowed to stand to allow the formation of tri- or divalent titanium compounds.  Metal aryls include those of Li, Mg, Al, Cd, Zn, Ca, Na and K, such as tolyllithium, phenylaluminium, diphenylzinc, diphenylcadmium, diphenylmagnesium, sodium naphthyl-1, phenyl calcium iodide and potassium naphthyl-2. The alkoxy groups of the titaniferous starting material may contain up to 16 carbon atoms, and preferably less than six.  The compounds of the invention may be used in the polymerization of olefinic hydrocarbons (see Group IV (a)).ALSO:Olefinic hydrocarbons such as ethylene, propylene, styrene, butadiene, isoprene and chloroprene may be polymerized using as a catalyst an organo-titanium compound containing 1 or 2 Ti-R bonds, the titanium being di- or trivalent and R being an alkyl or aryl group.  Preferred compounds have the formula RnTiXm where R is alkyl or aryl, X is alkoxy or halogen, n is 1 or 2, m is 1 or 2, the titanium being di- or tri-valent and (n+m) being equal to the valency of the titanium (see Group IV (b)).
Patent GB-201050-A (GB)
Title: Improvements in and relating to devices for testing the ignition circuit of internal combustion engines
IPC: F02P17/12
Filed: 1922-08-08
Abstract: 201,050. Moore, W. P. Aug. 8, 1922. Testing and indicating devices consist of a U- shaped strip of metal 2 pivotally secured to the shell of a plug. Pivots 3 for engaging recesses 4 may be punched in the limbs of the U-piece.
Patent GB-443476-A (GB)
Title: Improvements in and relating to frictional material
IPC: F16D69/02
Filed: 1935-07-30
Abstract: Friction material for brake lining comprises an alloy of 70-85 per cent of copper, 6-15 per cent of lead, 2-10 per cent of tin, 1-4 per cent of nickel, and 1-4 per cent of silicon, with or without 1-2 per cent of zinc.  The alloy is toughened by heat treatment at 500-800 DEG  C., in a neutral or reducing atmosphere. The ingredients of the alloy may be sintered instead of melted. The lining may be used for clutches, electric vehicle overhead trolly wheels, or vehicle traction wheels or rails.
Patent GB-952751-A (GB)
Title: Improvements in or relating to windings for alternating-current machines, more especially turbo-generators
IPC: H02K3/14
Filed: 1960-06-20
Abstract: 952,751. Conductors for dynamo-electric machines. SIEMENS-SCHUCKERTWERKE A.C. June 20, 1960 [June 23, 1959], No. 21635/60. Heading H2A. Parasitic voltages induced by stray fields in the end loops of a winding of an alternating current machine comprising a plurality of composite conductor bars 1-12 connected in series by joining the individual insulated, transposed conductors of adjacent bars, are reduced by connecting one half of the bars 1-6, in series opposition with the other half 7-12. Each bar comprises seven component conductors lying side by side in a slot, the even numbered bars lying in the top of a slot and the odd number bars in the bottom. The end loop connections of the component conductors of all the adjacent bars except 6 and 7 are as shown in Fig. 2. The two halves 1-6 and 7-12 of the winding are connected together in the manner shown in Fig. 4. In a further arrangement (Fig. 5, not shown), in each half of the winding, the end loop connections of each serially connected set of component conductors occupy all positions with respect to the stray field so that the resultant induced voltage in each half of the winding is substantially zero. In this arrangement two series windings similar to 1-12 of Fig. 1 are connected in parallel.
Patent GB-166249-A (GB)
Title: Improvements in and relating to copper catalysts
IPC: B01J23/72
Filed: 1919-09-03
Abstract: A copper-containing catalyst in a dense porous condition is produced by fusing cupric oxide, cooling it and breaking it into pieces; if desired, the mass may be wholly or partially reduced in a current of hydrogen after the cooling stage.  Instead of cupric oxide, a copper salt, such as the nitrate or carbonate, capable of producing cupric oxide on heating, may be used as starting material.  The catalyst may be employed for the dehydration of alcohols, e.g. secondary butyl alcohol.  Specifications 11816/86 and 147,958, [Class 1 (iii), Oxides &c., Metallic], are referred to.ALSO:A catalytic material in a dense porous condition is produced by fusing cupric oxide, cooling it and breaking it into pieces. Instead of cupric oxide, a copper salt, such as the nitrate or carbonate, capable of producing cupric oxide on heating, may be used as starting material.  Specifications 11816/86 and 147,958 are referred to.
Patent GB-257941-A (GB)
Title: Means for winding up a motor vehicle clock from the motive power of the vehicle
Filed: 1926-09-03
Abstract: 257,941. Huessy, W.. (known as Buhler, W. Huessy-), (Assignee of Meier, K. H.). Sept. 3, 1925, [Convention date]. Winding-apparatus; clocks combined with speedometers.-The spring of a motor vehicle clock is arranged to be wound up by the vehicle engine through the medium of a differential of which the crown wheel is attached to the winding spindle and of which another gear member is braked magnetically. The shaft 5. driven from the engine and ordinarily used for the speedometer, drives by gearing 6, 7, 8 and 9 a wheel 10 loose on a shaft 1 geared to wind up the clock spring 4. Rigid with the wheel 10 is a wheel 11 gearing with the crown wheel 12, the shaft 13 of which is attached to the shaft 1. Meshing with the wheel 12 is a wheel 14 loose on shaft 1 and rigid with a wheel 15 geared to the disc armature 18 of a magnet 19. The braking effect of the latter acts on the differential to cause rotation of shaft 1 and winding of the spring until the latter is wound up sufficiently to reverse the action of the differential. The brake device 18, 19 may it is stated, be replaced by a flywheel having blades to cause air resistance. As well as driving the above differential device, the shaft 5 and wheel 6 may also drive the speedometer in the usual way.
Patent GB-664979-A (GB)
Title: An improved method for fastening the end of a work-piece to the surface of a sheet metal plate
IPC: F16B5/00
Filed: 1949-08-22
Abstract: 664,979. Jointing by forging and stamping. AKTIEBOLAGET SVENSKA FLAKTFABRIKEN. Aug. 22, 1949 [Aug. 28, 1948], No. 21766/49. Class 83 (iv). The end of a workpiece is fastened to the surface of a sheet metal plate by placing the said end as a die underneath a sheet metal plate while a punch cuts two slots in the latter and bends the plate at the edges of the slots after which another punch deforms the bent portions of the plate and also the end of the workpiece so that the deformed end of the workpiece is locked with the deformed parts of the metal plate. A plane sheet metal workpiece 12, Fig. 2, is placed vertically with its upper edge in contact with the lower surface of a horizontal plane metal sheet 13, and a punch 14, having an end slot in alignment with the plate 12, is applied to cut a metal strip 18 joined at both ends to the plate 13 and to stamp out tongues 19, 20 which are so supported during the stamping operation that they are pressed into contact with the plate 12. The strip 18 and the upper edge of the plate 12 are now deformed by a second punch to the shapes shown in Fig. 3 at 18a and 26, respectively, whereby the part 26 is firmly held between the strip 18a and the tongues 19, 20. A number of U-shaped sheet metal plates 27, Fig.. 8, are fastened to a plane sheet metal plate 28 by applying a punch 29 shaped in correspondence with the inner surface of a U-shaped plate 27 and having side surfaces 34, 35 forming sharp edges with the bottom surface 36, the remaining edges of which are rounded to cut a strip 39 downwardly bent within the plate 27. A punch 40, Fig. 10, is then applied to bend the strips between successive plates 37 to the shape 41a, and the upper edges 42 of the U-shaped plates 27 are bent over the strips 39. The outermost legs of the plates 27 may be fastened by a punch of a different shape forming a depression 41b in the plate 28. If only one U-shapedplate 27 is to be fastened to the plate 28 a punch 40a may be combined with the punch 40, so that the deformations 41a and 42 may be made simultaneously at both sides of the member 27.
Patent GB-149953-A (GB)
Title: Improvements in and relating to the moulding of pottery
IPC: B28B1/02
Filed: 1920-07-20
Abstract: 149,953. Aktiebolaget Gustafsbergs- Fabriks-Intressenter. Aug. 15, 1919, [Convention date]. Copying mechanism. -A machine for jolleying or turning non-cir. cular pottery ware comprises a mould 8 mounted on a disk 9 which is grooved on the underside to engage a slide carried by the shaft 3 and is furnished with a depending pin 10 engaging a cam groove 11 in a stationary member 12 secured to the table 2. The profile 16 is adjustably mounted at 17 on a pivoted, counterweighted arm 21.
Patent GB-358164-A (GB)
Title: Improvements relating to two stroke cycle oil engines
IPC: F02B75/02
Filed: 1930-07-18
Abstract: 358,164. Cylinders. DEUTSCHE WERKE KIEL AKT.-GES., 114, Werftstrasse, and RODE, G., 125, Holtenauer Strasse, both in Kiel, Germany. July 18, 1930, No. 21814. [Class 7 (ii).] An auxiliary port a<1>, Fig. 1, is formed by an upward extension of one of the main air inlet ports a of a two-stroke cycle engine of the type in which the axes of the main ports are so directed, Fig. 2, as to produce no whirling motion of the entering charge. The auxiliary port permits the entry of the air charge in a direction which will produce whirling of the contents of the cylinder before and after the main ports are uncovered and covered. The extension of one of the main ports may be formed by rounding off the top edge of an otherwise unaltered port.. When the main ports are arranged radially the extension forming the auxiliary port has one of its vertical edges rounded whilst the other is shaped to deflect the entering charge tangentially ; the top edge may also be inclined so that the flow merges gradually from a tangential to a radial direction. A conical protuberance b<1> on the piston facilitates the whirling to the contents of the cylinder. A plurality of auxiliary ports formed as above may be employed.
Patent GB-1192886-A (GB)
Title: Thermomagnetic Recording
IPC: G03G19/00
Filed: 1968-05-08
Abstract: 1,192,886. Thermomagnetic images. E.I. DU PONT DE NEMOURS & CO. 8 May, 1968 [8 May, 1967], No. 21849/68. Heading B6C. [Also in Division H1] A magnetized member, suitably comprising a support bearing a layer of a magnetic material, is placed in a constant magnetic field of polarity opposite to that present in the member and of a strength insufficient to modify the magnetization of the member at the prevailing temperature, then the member is exposed to electromagnetic or particulate radiation which raises the temperature of the member where it impinges on it, so that there the strength of the constant magnetic field exceeds the coercivity of the member at the raised temperature and the magnetism of the heated part of the member is reversed. The radiation may be produced by a laser, either as a pulse or continuously, or may be an electron beam. A document may be placed in contact with the magnetized member, so that an image of the document appears in latent form in the member when radiation is passed through the document, either by flooding it with a pulse of radiation or by scanning it in a raster pattern. Alternatively the radiation may be reflected from the surface of a document and focused by mirrors or lenses to give an image of light and dark portions of it larger or smaller than the original document. In place of modulation by a document the radiation may be modulated directly by mechanical, electronic or electrooptic means. Read-out may be by means of a magnetic sensing head, by the Faraday effect, by sensing with an electron beam, by the Zeeman effect or by the Kerr effect. The magnetic member may be a tape and may comprise a substrate bearing a layer of magnetizable material in a binder. Numerous examples of suitable substrate materials, magnetizable materials and binders are given.
Patent GB-1593598-A (GB)
Title: Tetranicotinic ester of papaveroline and process for the production thereof
IPC: A61P9/10
Filed: 1978-05-24
Abstract: Paperveroline derivative for the treatment of arteriopathies, which is easily soluble in water and having the formula: <IMAGE>   The invention also concerns the relevant production process, which involves reacting nicotinoyl chloride hydrochloride with papaveroline.
Patent GB-168060-A (GB)
Title: Automatic screw-cutting lathe
IPC: B23G1/04
Filed: 1921-08-17
Abstract: 168,060. Bechler, A. Aug. 17, 1920. Turning.-In an automatic screw-cutting lathe the tool carriage may be automatically fed after each cut in a direction adjustably inclined to the work axis according to the angle of the thread to be cut. The tool carriage i slides on a dovetail guide on a graduated member h secured to the cross-slide b by bolts h<1> and angularly adjustable about a short central spindle n, the upper end of which carries spur teeth l engaging a rack k secured to the tool carriage. The spindle n is rotated to feed the tool by means of a worm-wheel l<1> engaging a worm c on a spindle m mounted on the cross-slide and carrying a ratchet-wheel d operated automatically at each traverse by stops f, f<1> on a longitudinal rod. In operation, the slide h is first angularly adjusted, so that the tool is advanced as indicated in Fig. 5, only one of the cutting-edges being operative.
Patent GB-395171-A (GB)
Title: Improvements in or relating to automatic telephone apparatus
IPC: H04M1/56
Filed: 1932-08-04
Abstract: 395,171. Substation equipment. LINK, H., 304, Z³lpicherstrasse, Sulz, and REICHENBACH, A., 2, Breitestrasse, both in Cologne, Germany. Aug. 4, 1932, No. 21934. [Class 40 (iv).] In an arrangement for automatically printing at a substation the number dialled by a subscriber and comprising a finger disc a carrying type members c adapted to be moved with the normal finger-hold disc of an impulse-transmitter, the tape q is fed after each digit by a pin a<2> controlling a pawl u and at the end of a call by a rod z linked to the switch-hook and controlling a second pawl y. The latter may be used to give longitudinal feed when the pawl u gives transverse feed. The disc a is freely movable into and out of operative position by an adjustable mounting on one arm of an elbow member i the other end of which is adjustable in a socket j. The tape q is brought into contact with the appropriate type-member by a pivoted lever t engaged by the finger just before encountering the finger-stop.
Patent GB-155004-A (GB)
Title: An improved spirally fluted drill
IPC: B23B51/02
Filed: 1919-09-06
Abstract: 155,004. Robertson, T. Sept. 6, 1919. Drills.-A twist drill for drilling holes of different diameters, recessing and countersinking, has steps 1, 2, 3, 4 of different diameter with clearance grooves c and, if desired, inclined faces d between the steps. The step 3 is shown with a central clearance groove c<2> in addition. If pilot holes are first drilled by means of jigplates, these may be removed and the holes finished by unskilled labour with a stepped drill of the required size. Reamers.-The last step may be only slightly larger than that preceding it, so as to act like a reamer.
Patent GB-1466911-A (GB)
Title: Pcm tdm telecommunications networks
IPC: H04J3/04
Filed: 1974-05-17
Abstract: 1466911 Automatic exchange systems SIEMENS AG 17 May 1974 [29 June 1973] 21983/74 Heading H4K In a PCM, TDM tandem exchange having a space-time-space switching network, provision is made for by-passing the time stage in respect of broad band signals that occupy whole time frames. Such signals may be data or broadcast signals, e.g. video, having a bit rate of up to 8 Mb/s. Since a normal telephone channel (in a 32 channel, 8-bit PCM system) has a 64 KB/s rate, then each frame provides a 2À048 M#/s rate whereby four such frames would be required for a video signal. This is obtained by multiplexing 4 basic (32 channel) PCM systems into a supermultiplex or so-called 2nd order multiplex. As shown, 3rd order multiplexes LK3, 2nd order multiplexes LK2 and 1st order multiplexes LK1 may need switching through the network. In order to avoid unnecessary demultiplexing of broad band signals and since the passage of such demultiplexed signals through a time slot interchanges inevitably produces signal degradation it is proposed that these signals be switched over direct links LLB (2nd order) and LLA (1st order) between the input and output switching stages RB, RA and RB<SP>1</SP>, RA<SP>1</SP>. The time slot interchangers ZK are then only used for switching signals occupying a single channel, these having been obtained via suitable stages of demultiplexing, i.e. D3/2 and D2/1. Stuffing pulses are removed from the high order multiplexes before switching takes place.
Patent GB-441927-A (GB)
Title: Improvements in and relating to the excavation of soil and earth preparatory to the casting of concrete piles in situ
IPC: E02D5/38
Filed: 1934-07-28
Abstract: 441,927. Boring earth. NEWTON, D. M., and FRANKI COMPRESSED PILE CO., Ltd., Wellington Buildings, The Strand, Liverpool. July 28, 1934, No. 22064. [Class 85] Holes are formed in the ground, preparatory to casting piles therein in situ, by intermittently sinking an open-ended tube for a short distance, withdrawing the tube with a plug of soil retained therein, and expelling the plug by means of a drop hammer working within the tube. The tube 1 may be sunk by hauling on ropes &c. 3 passing over pulley blocks 4 connected tc the tube, or to a ring thereon, by hooks 5 ; the sinking may be assisted by a drop hammer 9 with a shank 9a, the hammer preferably acting through a wooden pad 11 carried by a double-channelled ring 10 fitting on the tube 1. Lateral slots in the hammer 9 and ring 10 permit passage of the rope 13 of the plugexpelling hammer 2.